WebSVN – wimsdev – Blame – /trunk/wims/src/Misc/canvasdraw/canvasdraw.c

Rev	Author	Line No.	Line
8299	schaersvoo	1	/*27/7/2013 version 0.01
7614	schaersvoo	2	"Inspired" by FLY program: http://martin.gleeson.com/fly
		3	*********************************************************************************
		4	* J.M. Evers 7/2013 *
		5	* This is all just amateur scriblings... So no copyrights. *
		6	* This source code file, and compiled objects derived from it, *
		7	* can be used and distributed without restriction, including for commercial use *
		8	* No warrenty whatsoever *
		9	*********************************************************************************
		10	*/
7848	bpr	11	#include "canvasdraw.h"
7614	schaersvoo	12
		13	/******************************************************************************
		14	** Internal Functions
		15	******************************************************************************/
		16	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		17	void sync_input(FILE infile);/ proceed with inputfile */
11021	schaersvoo	18	void add_javascript_function(int js_function[], int canvas_root_id);
7614	schaersvoo	19	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		20	int get_token(FILE infile); / read next char until EOL*/
8225	bpr	21	/*
7614	schaersvoo	22	int x2px(double x);
		23	int y2px(double y);
8225	bpr	24	*/
7614	schaersvoo	25	double px2x(int x);
		26	double px2y(int y);
7906	schaersvoo	27	double get_real(FILE infile,int last); / read a value; calculation and symbols allowed */
7614	schaersvoo	28	char str_replace ( const char word, const char sub_word, const char rep_word );
		29	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
7906	schaersvoo	30	char get_string(FILE infile,int last); /* get the string at the end of a command */
7614	schaersvoo	31	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		32	char convert_hex2rgb(char hexcolor);
8257	schaersvoo	33	void add_read_canvas(int canvas_root_id,int reply_format,int reply_precision);
7614	schaersvoo	34	void make_js_include(int canvas_root_id);
		35	void check_string_length(int length);/* checks if the length of string argument of command is correct */
8224	bpr	36	FILE *js_include_file;
7614	schaersvoo	37	FILE get_file(int line_number, char **filename);
		38	FILE infile; / will be stdin */
		39	/******************************************************************************
		40	** global
		41	******************************************************************************/
		42	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		43	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		44	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		45	int xsize = 320;
		46	int ysize = 320;
		47	double xmin = 0.0;
		48	double xmax = 320.0;
		49	double ymin = 0.0;
		50	double ymax = 320.0;
		51	double tmax = 2;
		52	double tmin = -2;
		53	/* flag to indicate parsing of line status */
8224	bpr	54	int done = FALSE;
7614	schaersvoo	55	int type; /* eg command number */
		56	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
8097	schaersvoo	57	int slider = 0;/* slider=1 : x-values ; slider=2 : y-values;slider=3 angle values */
7785	schaersvoo	58	int use_affine = FALSE;
7614	schaersvoo	59	int use_rotate = FALSE;
		60	int use_filled = FALSE;
		61	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
8097	schaersvoo	62
7614	schaersvoo	63	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
9329	schaersvoo	64	char *getfile_cmd = "";
7614	schaersvoo	65	/******************************************************************************
		66	** Main Program
		67	******************************************************************************/
		68	int main(int argc, char *argv[]){
		69	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
		70	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
		71	infile = stdin;/* read flyscript via stdin */
		72	int i,c;
		73	double double_data[MAX_INT+1];
		74	int int_data[MAX_INT+1];
		75	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		76	int use_parametric = FALSE;/* will be reset after parametric plotting */
11802	schaersvoo	77	int use_offset = FALSE;/* use_offset only for text shape objects... 0=none;1=xcentered;2=xyoffset*/
7614	schaersvoo	78	int use_axis = FALSE;
		79	int use_axis_numbering = FALSE;
7797	schaersvoo	80	int use_pan_and_zoom = FALSE;
7956	schaersvoo	81	int use_safe_eval = FALSE; /* if true, add just once : js function to evaluate userinput values for plotting etc */
7858	schaersvoo	82	int use_js_math = FALSE; /* if true add js-function to convert math_function --> javascript math_function */
		83	int use_js_plot = FALSE; /* if true , let js-engine plot the curve */
11006	schaersvoo	84	int jsplot_cnt = 0; /* keepint track on the curve identity */
8448	schaersvoo	85	int print_drag_params_only_once = FALSE;/* avoid multiple useless identical lines about javascript precision and use_dragdrop */
7614	schaersvoo	86	int line_width = 1;
		87	int decimals = 2;
8365	schaersvoo	88	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate.May be redefined before every object */
		89	int use_userdraw = FALSE; /* flag to indicate user interaction */
7614	schaersvoo	90	int drag_type = -1;/* 0,1,2 : xy,x,y */
9329	schaersvoo	91	int use_tooltip = -1; /* 1= tooltip 2= popup window*/
7614	schaersvoo	92	char *tooltip_text = "Click here";
		93	char temp = ""; / */
		94	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		95	char *stroke_color = "255,0,0";
		96	char *fill_color = "0,255,0";
		97	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		98	char *font_color = "#00000";
		99	char *draw_type = "points";
		100	char *fly_font = "normal";
8815	schaersvoo	101	char *input_style = "font-family:Ariel;text-align:center;color:blue;font-size:12px;background-color:orange;";
7614	schaersvoo	102	char *flytext = "";
7785	schaersvoo	103	char *affine_matrix = "[1,0,0,1,0,0]";
8297	schaersvoo	104	char *function_label = "f(x)=";
11006	schaersvoo	105	int canvas_type = DRAG_CANVAS; /* to use a specific canvas for filling etc */
7614	schaersvoo	106	int pixelsize = 1;
		107	int reply_format = 0;
		108	int input_cnt = 0;
		109	int ext_img_cnt = 0;
8071	schaersvoo	110	int slider_cnt = 0;
11763	schaersvoo	111	int fill_cnt = 0;
10953	bpr	112	int font_size = 12;/* this may lead to problems when using something like "fontfamily Italic 24px Ariel" the "font_size" value is not substituted into fontfamily !! */
8388	schaersvoo	113	int fly_font_size = 12; /fly_font_size is relative to this... /
8365	schaersvoo	114	int dashtype[2] = { 4 , 4 }; /* just line_px and space_px : may have more arguments...if needed in future*/
7614	schaersvoo	115	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		116	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
8365	schaersvoo	117	int arrow_head = 8; /* size in px needed for arrow based userdraw: "userdraw arrow,color" */
7833	schaersvoo	118	int crosshair_size = 5; /* size in px*/
8365	schaersvoo	119	int plot_steps = 250;/* the js-arrays with x_data_points and y_data_points will have size 250 each: use with care !!! use jscurve when precise plots are required */
		120	int found_size_command = 0; /* 1 = found size ; 2 = found xrange; 3 = found yrange :just to flag an error message */
8448	schaersvoo	121	int click_cnt = 0; /counter to identify the "onclick" ojects ; 0 is first object set onclick: reply[click_cnt]=1 when clicked ; otherwise reply[click_cnt]=0 ; click_cnt is only increased when another object is set again /
7614	schaersvoo	122	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		123	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
7989	schaersvoo	124	int barchart_cnt = 0; /* identifier for command 'barchart' ; multiple charts may be plotted in a single plot*/
9433	schaersvoo	125	int boxplot_cnt = 0;
7956	schaersvoo	126	int legend_cnt = -1; /* to allow multiple legends to be used, for multiple piecharts etc */
8074	schaersvoo	127	int reply_precision = 100; /* used for precision of student answers / drawings */
7614	schaersvoo	128	double angle = 0.0;
10953	bpr	129	char *rotation_center = "null";
8365	schaersvoo	130	int clickfillmarge = 20; /* in pixels : if the 'remove click' is within this marge, the filling is removed */
		131	int animation_type = 9; /* REMOVED == object type curve in drag library */
7823	schaersvoo	132	int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
10953	bpr	133	int use_slider_display = 0; /* in case of a slider, should we display its value ?*/
8365	schaersvoo	134	size_t string_length = 0; /* measure the size of the user input fly-string */
		135	double stroke_opacity = 0.8; /* use some opacity as default */
		136	double fill_opacity = 0.8;/* use some opacity as default */
7614	schaersvoo	137	char *URL = "http://localhost/images";
9213	schaersvoo	138	char *slider_function_x = "x";
		139	char *slider_function_y = "y";
7614	schaersvoo	140	memset(buffer,'\0',MAX_BUFFER);
		141	void *tmp_buffer = "";
8224	bpr	142
7614	schaersvoo	143	/* default writing a unzipped js-include file into wims getfile directory */
		144	char *w_wims_session = getenv("w_wims_session");
8224	bpr	145	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){
7614	schaersvoo	146	canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
		147	}
		148	int L0=strlen(w_wims_session) + 21;
		149	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		150	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		151	mode_t process_mask = umask(0); /* check if file exists */
		152	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		153	if( result == 0 \|\| errno == EEXIST ){
		154	umask(process_mask); /* be sure to set correct permission */
8224	bpr	155	char *w_session = getenv("w_session");
7614	schaersvoo	156	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
9329	schaersvoo	157	getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
8224	bpr	158	snprintf(getfile_cmd,L1,"wims.cgi?session=%s&cmd=getfile&special_parm=%d.js",w_session,canvas_root_id);/* extension ".gz" is MANDATORY for webserver */
7614	schaersvoo	159	/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
		160	/* now write file into getfile dir*/
		161	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		162	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		163	char location = my_newmem(L2); / create memory to fit string precisely */
		164	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		165	js_include_file = fopen(location,"w");/* open the file location for writing */
		166	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		167	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		168
		169	/* ----------------------------------------------------- */
		170	/* while more lines to process */
		171
		172	while(!finished){
9329	schaersvoo	173	if(line_number>1 && found_size_command == 0 && use_tooltip != 2 ){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
7614	schaersvoo	174	type = get_token(infile);
		175	done = FALSE;
		176	/*
9385	schaersvoo	177	@ canvasdraw
		178	@ will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image<br />by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job.<br />thus ensuring a minimal strain on the client browser <br />(unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
9386	schaersvoo	179	@ general syntax <ul><li>The transparency of all objects can be controlled by command <a href="#opacity">'opacity [0-255],[0,255]'</a></il><li>line width of any object can be controlled by command <a href="#linewidth">'linewidth int'</a></li><li>any may be dashed by using keyword <a href="#dashed">'dashed'</a> before the object command.<br />the dashing type can be controled by command <a href="#dashtype">'dashtype int,int'</a></li><li>a fillable object can be set fillable by starting the object command with an 'f'<br />(like frect,fcircle,ftriangle...)<br />or by using the keyword <a href="#filled">'filled'</a> before the object command.<br />The fill colour of 'non_userdraw' objects will be the stroke colour...(flydraw harmonization 19/10/2013)</li><li>all draggable objects may have a <a href="#slider">slider</a> for translation / rotation; several objects may be translated / rotated by a single slider</li> <li> a draggable object can be set draggable by a preceding command <a href="#drag">'drag x/y/xy'</a><br />The translation can be read by javascript:read_dragdrop();The replyformat is : object_number : x-orig : y-orig : x-drag : y-drag<br />The x-orig/y-orig will be returned in maximum precision (javascript float)...<br />the x-drag/y-drag will be returned in defined 'precision' number of decimals<br />Multiple objects may be set draggable / clickable (no limit)<br /> not all flydraw objects may be dragged / clicked<br />Only draggable / clickable objects will be scaled on <a href="#zoom">zoom</a> and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword <a href="#onclick">'onclick'</a><br />not all flydraw objects can be set clickable</li><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (instead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.</li><li>almost every <a href="#userdraw">"userdraw object,color"</a> or <a href="#multidraw">"multidraw"</a> command 'family' may be combined with keywords <a href="#snaptogrid">"snaptogrid \| xsnaptogrid \| ysnaptogrid \| snaptofunction</a> or command "snaptopoints x1,y1,x2,y2,..." </li><li>every draggable \| onclick object may be combined with keywords <a href="#snaptogrid">snaptogrid \| xsnaptogrid \| ysnaptogrid \| snaptofunction</a> or command "snaptopoints x1,y1,x2,y2,..." </li><li>almost every command for a single object has a multiple objects counterpart:<br /><ul>general syntaxrule:<li><em>single_object</em> x1,y1,...,color</li><li><em>multi_object</em> color,x1,y1,...</li></ul><li>All inputfields or textareas generated, can be styled individually using command <a href="#inputstyle">'inputstyle some_css'</a><br/>the fontsize used for labeling these elements can be controlled by command <a href="fontsize">'fontsize int'</a> <br />command 'fontfamily' is <b>not</b> active for these elements </li></ul>
10953	bpr	180	@ If needed multiple interactive scripts may be used in a single webpage.<br />A function 'read_canvas()' and / or 'read_dragdrop()' can read all interactive userdata from these images.<br />The global array 'canvas_scripts' will contain all unique random "canvas_root_id" of the included scripts.<br />The included local javascript "read" functions "read_canvas%d()" and "read_dragdrop%d()" will have this "%d = canvas_root_id"<br />e.g. canvas_scripts[0] will be the random id of the first script in the page and will thus provide a function<br />fun = eval("read_canvas"+canvas_scripts[0]) to read user based drawings / inputfield in this first image.<br />The read_dragdrop is analogue.<br />If the default reply formatting is not suitable, use command <a href='#replyformat'>'replyformat'</a> to format the replies for an individual canvas script,<br />To read all user interactions from all included canvas scripts , use something like:<br /><em>function read_all_canvas_images(){<br /> var script_len = canvas_scripts.length;<br /> var draw_reply = "";<br /> var found_result = false;<br /> for(var p = 0 ; p < script_len ; p++){<br />  var fun = eval("read_canvas"+canvas_scripts[p]);<br />  if( typeof fun === 'function'){<br />   var result = fun();<br />   if( result  && result.length != 0){<br />    if(script_len == 1 ){ return result;};<br />     found_result = true;<br />     draw_reply = draw_reply + result + "\\n";<br />    };<br />   };<br />  };<br /> if( found_result ){return draw_reply;}else{return null;};<br />};</em>
11006	schaersvoo	181	@ you can check the javascript reply format in the wims tool <a href="http://localhost/wims/wims.cgi?lang=en&module=tool/directexec">direct exec</a>
10962	schaersvoo	182	@ for usage within OEF (without anstype "draw"), something like this (a popup function plotter) will work:<br /><small>\\text{popup_grapher=wims(exec canvasdraw <br />popup<br />size 400,400<br />xrange -10,10<br />yrange -10,10<br />axis<br />axisnumbering<br />opacity 100,100<br />grid 2,2,grey,2,2,6,black<br />snaptogrid<br />linewidth 2<br />jsplot red,5*sin(1/x)<br />strokecolor green<br />functionlabel f(x)=<br />userinput function<br />mouse blue,22<br />)<br />}<br />\\statement{<br />\\popup_grapher<br />}</small>
9427	schaersvoo	183	@ be aware that older browsers will probably not work correctly<br />no effort has been undertaken to add glue code for older browsers !! <br />in any case it's not wise to use older browsers...not just for canvasdraw
10827	schaersvoo	184	@ if you find flaws, errors or other incompatibilities -not those mentioned in this document- send <a href='mailto:jm.evers-at-schaersvoorde.nl'>me</a> an email with screenshots and the generated javascript include file.
11002	schaersvoo	185	@ there is limited support for touch devices : touchstart,touchmove and touchend in commands <a href="#userdraw">userdraw primitives </a>, <a href="#protractor">protractor</a> and <a href="#ruler">ruler</a><br />only single finger gestures are supported (for now)<br />for more accurate user-interaction with canvasdraw on touch devices: use the command family <a href="userinput_xy">userinput</a>
7614	schaersvoo	186	*/
		187	switch(type){
		188	case END:
		189	finished = 1;
		190	done = TRUE;
		191	break;
		192	case 0:
		193	sync_input(infile);
		194	break;
		195	case COMMENT:
		196	sync_input(infile);
		197	break;
11806	schaersvoo	198	case AFFINE:
7614	schaersvoo	199	/*
11806	schaersvoo	200	@ affine a,b,c,d,tx,ty
		201	@ defines a transformation matrix for subsequent objects
		202	@ images drawn by setting skew params a & d will be very different from Flydraw's "affine a,b,c,d,e,tx,ty" !!
		203	@ use keyword 'killaffine' to end the transformation
		204	@ note 1: only 'draggable' / 'noclick' objects can be transformed.
		205	@ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
		206	@ note 3: no matrix operations on the transformation matrix implemented (yet)
		207	@ a : Scales the drawings horizontally
		208	@ b : Skews the drawings horizontally
		209	@ c : Skews the drawings vertically
		210	@ d : Scales the drawings vertically
		211	@ tx: Moves the drawings horizontally in xrange coordinate system
		212	@ ty: Moves the drawings vertically in yrange coordinate system
		213	@ the data precision may be set by preceding command "precision int"
7614	schaersvoo	214	*/
11806	schaersvoo	215	for(i = 0 ; i<6;i++){
7614	schaersvoo	216	switch(i){
11806	schaersvoo	217	case 0: double_data[0] = get_real(infile,0);break;
		218	case 1: double_data[1] = get_real(infile,0);break;
		219	case 2: double_data[2] = get_real(infile,0);break;
		220	case 3: double_data[3] = get_real(infile,0);break;
		221	case 4: double_data[4] = get_real(infile,0);break;
		222	case 5: double_data[5] = get_real(infile,1);
		223	use_affine = TRUE;
		224	decimals = find_number_of_digits(precision);
		225	string_length = snprintf(NULL,0, "[%.f,%.f,%.f,%.f,%.f,%.f] ",decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4]xsize/(xmax - xmin),decimals,-1double_data[5]*ysize/(ymax - ymin));
		226	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		227	snprintf(affine_matrix,string_length,"[%.f,%.f,%.f,%.f,%.f,%.f] ",decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4]xsize/(xmax - xmin),decimals,-1double_data[5]*ysize/(ymax - ymin));
		228	break;
7614	schaersvoo	229	default: break;
		230	}
		231	}
11806	schaersvoo	232	break;
8386	schaersvoo	233
11806	schaersvoo	234	case ANGLE:
7614	schaersvoo	235	/*
11806	schaersvoo	236	@ angle xc,yc,width,start_angle,end_angle,color
		237	@ width is in x-range
		238	@ will zoom in/out
		239	@ if size is controlled by command <a href='#slider'>'slider'</a> use radians to set limits of slider.
7614	schaersvoo	240	*/
11806	schaersvoo	241	for(i=0;i<7;i++){
7614	schaersvoo	242	switch(i){
11806	schaersvoo	243	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		244	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		245	case 2:double_data[2] = get_real(infile,0);break; /* width in pixels ! */
		246	case 3:double_data[3] = get_real(infile,0);break; /* start angle in degrees */
		247	case 4:double_data[4] = get_real(infile,0);break; /* end angle in degrees */
		248	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		249	decimals = find_number_of_digits(precision);
		250	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,17,[%.f,%.f],[%.f,%.f],[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		251	reset();
		252	break;
7614	schaersvoo	253	}
		254	}
		255	break;
8386	schaersvoo	256
11806	schaersvoo	257	case ANIMATE:
7614	schaersvoo	258	/*
11806	schaersvoo	259	@ animate type
		260	@ REMOVED : this should be done with a slider
		261	@ type may be "point" (nothing else , yet...)
		262	@ the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		263	@ will animate a point on the next plot/curve command
		264	@ the curve will not be draw
		265	@ moves repeatedly from xmin to xmax
7614	schaersvoo	266	*/
11806	schaersvoo	267	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
7614	schaersvoo	268	break;
8386	schaersvoo	269
		270
11806	schaersvoo	271	case ARC:
7614	schaersvoo	272	/*
11806	schaersvoo	273	@ arc xc,yc,width,height,start_angle,end_angle,color
		274	@ can <b>not</b> be set "onclick" or "drag xy"
		275	@ <b>attention</b>: width in height in x/y-range
		276	@ will not zoom in or zoom out (because radius is given in pixels an not in x/y-system !). Panning will work
		277	@ use command <a href='#angle'>'angle'</a> for scalable angle
7614	schaersvoo	278	*/
11806	schaersvoo	279	for(i=0;i<7;i++){
		280	switch(i){
		281	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		282	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		283	case 2:double_data[2] = get_real(infile,0);break; /* width x-range no pixels ! */
		284	case 3:double_data[3] = get_real(infile,0);break; /* height y-range no pixels ! */
		285	case 4:double_data[4] = get_real(infile,0);break; /* start angle in degrees */
		286	case 5:double_data[5] = get_real(infile,0);break; /* end angle in degrees */
		287	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		288	/* in Shape library:
		289	x[0] = x[1] = xc = double_data[0]
		290	y[0] = y[1] = yc = double_data[1]
		291	w[0] = width = double_data[2]
		292	w[1] = height = double_data[3]
		293	h[0] = start_angle = double_data[4]
		294	h[1] = end_angle = double_data[5]
		295	*/
		296	decimals = find_number_of_digits(precision);
		297	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,12,[%.f,%.f],[%.f,%.f],[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		298	reset();
		299	break;
		300	}
		301	}
7614	schaersvoo	302	break;
11806	schaersvoo	303	case ARROW:
7614	schaersvoo	304	/*
11806	schaersvoo	305	@ arrow x1,y1,x2,y2,h,color
		306	@ alternative : vector
		307	@ draw a single headed arrow / vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		308	@ use command 'linewidth int' to adjust thickness of the arrow
9406	schaersvoo	309	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	310	*/
11806	schaersvoo	311	for(i=0;i<6;i++){
7614	schaersvoo	312	switch(i){
		313	case 0: double_data[0] = get_real(infile,0);break; /* x */
		314	case 1: double_data[1] = get_real(infile,0);break; /* y */
11806	schaersvoo	315	case 2: double_data[2] = get_real(infile,0);break; /* x */
		316	case 3: double_data[3] = get_real(infile,0);break; /* y */
		317	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		318	case 5: stroke_color = get_color(infile,1);/* name or hex color */
7614	schaersvoo	319	decimals = find_number_of_digits(precision);
11806	schaersvoo	320	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,8,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		321	if(onclick > 0){click_cnt++;}
		322	/* click_cnt++;*/
		323	reset();
		324	break;
		325	}
		326	}
		327	break;
8386	schaersvoo	328
11806	schaersvoo	329	case ARROWS:
7614	schaersvoo	330	/*
11806	schaersvoo	331	@ arrows color,head (px),x1,y1,x2,y2...x_n,y_n
		332	@ alternative : vectors
		333	@ draw single headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
		334	@ use command 'linewidth int' to adjust thickness of the arrow
		335	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
7614	schaersvoo	336	*/
		337	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		338	fill_color = stroke_color;
11806	schaersvoo	339	arrow_head = (int) get_real(infile,0);/* h */
7614	schaersvoo	340	i=0;
		341	while( ! done ){ /* get next item until EOL*/
		342	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		343	if(i%2 == 0 ){
		344	double_data[i] = get_real(infile,0); /* x */
		345	}
		346	else
		347	{
		348	double_data[i] = get_real(infile,1); /* y */
		349	}
		350	i++;
		351	}
		352	decimals = find_number_of_digits(precision);
11806	schaersvoo	353	for(c = 0 ; c < i-1 ; c = c+4){
		354	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,8,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		355	if(onclick > 0){click_cnt++;}
8379	schaersvoo	356	/* click_cnt++; */
7614	schaersvoo	357	}
		358	reset();
		359	break;
8386	schaersvoo	360
11806	schaersvoo	361	case ARROW2:
7614	schaersvoo	362	/*
11806	schaersvoo	363	@ arrow2 x1,y1,x2,y2,h,color
		364	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		365	@ use command 'arrowhead int' to adjust the arrow head size
		366	@ use command 'linewidth int' to adjust thickness of the arrow
9406	schaersvoo	367	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	368	*/
11806	schaersvoo	369	for(i=0;i<6;i++){
7614	schaersvoo	370	switch(i){
		371	case 0: double_data[0] = get_real(infile,0);break; /* x */
		372	case 1: double_data[1] = get_real(infile,0);break; /* y */
11806	schaersvoo	373	case 2: double_data[2] = get_real(infile,0);break; /* x */
		374	case 3: double_data[3] = get_real(infile,0);break; /* y */
		375	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		376	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		377	decimals = find_number_of_digits(precision);
		378	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,10,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		379	if(onclick > 0){click_cnt++;}
		380	/* click_cnt++;*/
		381	reset();
		382	break;
		383	}
		384	}
		385	break;
8386	schaersvoo	386
11806	schaersvoo	387	case ARROWS2:
7614	schaersvoo	388	/*
11806	schaersvoo	389	@ arrows2 color,head (px),x1,y1,x2,y2...x_n,y_n
		390	@ draw double headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
		391	@ use command 'linewidth int' to adjust thickness of the arrows
		392	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
7614	schaersvoo	393	*/
		394	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		395	fill_color = stroke_color;
11806	schaersvoo	396	arrow_head = (int) get_real(infile,0);/* h */
7614	schaersvoo	397	i=0;
		398	while( ! done ){ /* get next item until EOL*/
		399	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		400	if(i%2 == 0 ){
		401	double_data[i] = get_real(infile,0); /* x */
		402	}
		403	else
		404	{
		405	double_data[i] = get_real(infile,1); /* y */
		406	}
		407	i++;
		408	}
8224	bpr	409	decimals = find_number_of_digits(precision);
11806	schaersvoo	410	for(c = 0 ; c < i-1 ; c = c+4){
		411	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,10,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		412	if(onclick > 0){click_cnt++;}
8379	schaersvoo	413	/* click_cnt++; */
11806	schaersvoo	414
7614	schaersvoo	415	}
		416	reset();
		417	break;
11806	schaersvoo	418	case ARROWHEAD:
9427	schaersvoo	419	/*
11806	schaersvoo	420	@ arrowhead int
		421	@ default 8 (pixels)
9427	schaersvoo	422	*/
11806	schaersvoo	423	arrow_head = (int) (get_real(infile,1));
		424	break;
		425
		426	case AUDIO:
		427	/*
		428	@ audio x,y,w,h,loop,visible,audiofile location
		429	@ x,y : left top corner of audio element (in xrange / yrange)
		430	@ w,y : width and height in pixels
		431	@ loop : 0 or 1 ( 1 = loop audio fragment)
		432	@ visible : 0 or 1 (1 = show controls)
		433	@ audio format may be in .mp3 or .ogg
		434	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		435	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		436	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		437	@ example: upload both audio1.ogg and audio1.mp3 to http://server/files/<br />audio 0,0,http://server/files/audio1.mp3<br />svdraw will copy html-tag audio1.mp3 to audio1.ogg<br /> and the browser will play the compatible file (audio1.ogg or audio1.mp3)<br />
		438	*/
		439	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		440	for(i=0;i<7;i++){
		441	switch(i){
		442	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		443	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		444	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		445	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		446	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		447	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
		448	case 6:
		449	temp = get_string(infile,1);
		450	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		451	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		452	string_length = snprintf(NULL,0, "draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
		453	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		454	snprintf(tmp_buffer,string_length,"draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
		455	add_to_buffer(tmp_buffer);
		456	break;
		457	default:break;
9427	schaersvoo	458	}
11806	schaersvoo	459	}
		460	reset();
		461	break;
		462
		463
		464	case AXIS_NUMBERING:
		465	/*
		466	@ axisnumbering
		467	@ keyword (no arguments required)
		468	@ for special numbering of x-axis or y-axis see grid related commands <a href="#axis">axis</a> <a href="#xaxis">xaxis</a> , <a href="#xaxisup">xaxisup</a>, <a href="#noxaxis">noxaxis</a> ,<a href="#yaxis">yaxis</a> , <a href="#yaxisup">yaxisup</a>, <a href="#noyaxis">noyaxis</a>
		469	@ to be used before command grid (see <a href="#grid">command grid</a>)
		470	*/
		471	use_axis_numbering = 1;
		472	break;
		473	case AXIS:
		474	/*
		475	@ axis
		476	@ keyword (no arguments required)
		477	@ to be used before command grid (see <a href="#grid">command grid</a>)
		478
		479	*/
		480	use_axis = TRUE;
		481	break;
		482
		483	case BARCHART:
		484	/*
		485	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		486	@ may <b>only</b> to be used together with command <a href='#grid'>'grid'</a>
		487	@ can be used together with freestyle x-axis/y-axis texts : see commands <a href='#xaxis'>'xaxis'</a>,<a href='#xaxisup'>'xaxisup'</a> and <a href='#yaxis'>'yaxis'</a>
		488	@ use command <a href='#legend'>'legend'</a> to provide an optional legend in right-top-corner
		489	@ multiple barchart command may be used in a single script
		490	@ also see command <a href='#piechart'>'piechart'</a>
		491	@ note: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
		492	*/
		493	temp = get_string(infile,1);
		494	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
		495	fprintf(js_include_file,"var barchart_%d = [\"%s\"];",barchart_cnt,temp);
		496	barchart_cnt++;
		497	reset();
		498	break;
		499
		500	case BEZIER:
		501	/*
		502	@ bezier color,x_start,y_start,x_first,y_first,x_second,y_second,x_end,y_end
		503	@ draw a bezier curve between points, starting from (x_start:y_start)
		504	@ can <b>not</b> be dragged or set onclick
		505	*/
		506	if( js_function[DRAW_BEZIER] != 1 ){ js_function[DRAW_BEZIER] = 1;}
		507	decimals = find_number_of_digits(precision);
		508	for(i = 0 ; i < 9; i++){
		509	switch(i){
		510	case 0: stroke_color = get_color(infile,0);break;
		511	case 1: double_data[0] = get_real(infile,0);break;/* start x */
		512	case 2: double_data[1] = get_real(infile,0);break;/* start y */
		513	case 3: double_data[2] = get_real(infile,0);break;/The x-coordinate of the first B�zier control point /
		514	case 4: double_data[3] = get_real(infile,0);break;/The y-coordinate of the first B�zier control point /
		515	case 5: double_data[4] = get_real(infile,0);break;/The x-coordinate of the second B�zier control point /
		516	case 6: double_data[5] = get_real(infile,0);break;/The y-coordinate of the second B�zier control point /
		517	case 7: double_data[6] = get_real(infile,0);break;/The x-coordinate of the B�zier end point /
		518	case 8: double_data[7] = get_real(infile,1);/The y-coordinate of the B�zier end point /
		519	string_length = snprintf(NULL,0,"draw_bezier(%d,%d,[%f,%f,%f,%f,%f,%f,%f,%f],\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],double_data[6],double_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,use_affine,affine_matrix);
		520	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		521	snprintf(tmp_buffer,string_length,"draw_bezier(%d,%d,[%f,%f,%f,%f,%f,%f,%f,%f],\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],double_data[6],double_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,use_affine,affine_matrix);
		522	add_to_buffer(tmp_buffer);
		523	break;
		524	default: break;
9427	schaersvoo	525	}
		526	}
		527	reset();
		528	break;
11806	schaersvoo	529
		530
		531	case BGCOLOR:
9427	schaersvoo	532	/*
11806	schaersvoo	533	@ bgcolor colorname or #hex
		534	@ use this color as background of the "div" containing the canvas(es)
9427	schaersvoo	535	*/
11806	schaersvoo	536	/* [255,255,255]*/
		537	bgcolor = get_string(infile,1);
		538	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		539	int found = 0;
		540	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		541	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		542	bgcolor = colors[i].hex;
		543	found = 1;
		544	break;
		545	}
9427	schaersvoo	546	}
11806	schaersvoo	547	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		548	}
		549	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		550	break;
		551
		552	case BGIMAGE:
		553	/*
		554	@ bgimage image_location
		555	@ use an image as background .<br />technical: we use the background of 'canvas_div'
		556	@ the background image will be resized to match "width = xsize" and "height = ysize"
		557	*/
		558	URL = get_string(infile,1);
		559	fprintf(js_include_file,"<!-- set background image to canvas div -->\ncanvas_div.style.backgroundImage = \"url(%s)\";canvas_div.style.backgroundSize = \"%dpx %dpx\";\n",URL,xsize,ysize);
		560	break;
		561
		562	case BLINK:
		563	/*
		564	@ blink time(seconds)
		565	@ NOT IMPLEMETED -YET
		566	*/
		567	break;
		568
		569	case BOXPLOT:
		570	/*
		571	@ boxplot x_or_y,box-height_or_box-width,position,min,Q1,median,Q3,max
		572	@ example:<br />xrange 0,300<br />yrange 0,10<br />boxplot x,4,8,120,160,170,220,245<br />meaning: create a boxplot in x-direction, with height 4 (in yrange) and centered around line y=8
		573	@ example:<br />xrange 0,10<br />yrange 0,300<br />boxplot y,4,8,120,160,170,220,245<br />meaning: create a boxplot in y-direction, with width 4 (in xrange) and centered around line x=8
		574	@ use command <a href='filled'>'filled'</a> to fill the box<br /><b>note:</b> the strokecolor is used for filling Q1, the fillcolor is used for filling Q3
		575	@ use command <a href='#opacity'>'opacity'</a> to adjust fill_opacity of stroke and fill colours
		576	@ use command <a href='#legend'>'legend'</a> to automatically create a legend <br />unicode allowed in legend<br />use command 'fontfamily' to set the font of the legend.
		577	@ there is no limit to the number of boxplots used.
		578	@ can <b>not</b> be set draggable (<a href='#onclick'>'onclick'</a> is not ready ,yet)
		579	@ use keyword <a href="#userboxplot">'userboxplot'</a> before command boxplot, if a pupil must draw a boxplot (using his own min,Q1,median,Q3,max data)
		580	@ use keyword <a href="#userboxplotdata">'userboxplotdata'</a> before command boxplot, if a pupil must generate the data by some means.
		581	@ use command <a href="#boxplotdata">'boxplotdata'</a> when the boxplot should be drawn from wims-generated raw statistical date
		582	*/
		583	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		584	for(i=0;i<8;i++){
		585	switch(i){
		586	case 0: temp = get_string_argument(infile,0);
		587	if( strstr(temp,"x") != 0){int_data[0] = 1;}else{int_data[0] = 0;} break; /* x or y */
		588	case 1: double_data[0] = get_real(infile,0);break;/* height \| width */
		589	case 2:
		590	if( js_function[DRAW_JSBOXPLOT] == 0 ){
		591	double_data[1] = get_real(infile,0);
		592	fprintf(js_include_file,"var boxplot_source = 0;\n");/* we use given min,Q1,median,Q3,max */
		593	}
		594	else
		595	{
		596	double_data[1] = get_real(infile,1);
		597	double_data[2] = 1;
		598	double_data[3] = 1;
		599	double_data[4] = 1;
		600	double_data[5] = 1;
		601	double_data[6] = 1;
		602	double_data[7] = 1;
		603	i=8;
		604	}
		605	break;/* center value x or y */
		606	case 3: double_data[2] = get_real(infile,0); break;/* min */
		607	case 4: double_data[3] = get_real(infile,0); break;/* Q1 */
		608	case 5: double_data[4] = get_real(infile,0); break;/* median */
		609	case 6: double_data[5] = get_real(infile,0); break;/* Q3 */
		610	case 7: double_data[6] = get_real(infile,1); break;/* max */
		611	default:break;
9427	schaersvoo	612	}
		613	}
		614	decimals = find_number_of_digits(precision);
11806	schaersvoo	615	/function draw_boxplot(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1)/
		616	string_length = snprintf(NULL,0, "draw_boxplot(%d,%d,%.f,%.f,[%.f,%.f,%.f,%.f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d);\n",BOXPLOT_CANVAS+boxplot_cnt,int_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],decimals,double_data[6],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1]);
		617	check_string_length(string_length);
		618	tmp_buffer = my_newmem(string_length+1);
		619	snprintf(tmp_buffer,string_length, "draw_boxplot(%d,%d,%.f,%.f,[%.f,%.f,%.f,%.f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d);\n",BOXPLOT_CANVAS+boxplot_cnt,int_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],decimals,double_data[6],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1]);
		620	add_to_buffer(tmp_buffer);
		621	boxplot_cnt++;
		622	reset();
		623	break;
		624	case BOXPLOTDATA:
		625	/*
		626	@ boxplotdata some_data
		627	@ 'some_data' are a list of numbers separated by a comma "," (items)
		628	@ only be used before command 'boxplot': the command <a href="#boxplot">'boxplot'</a> will provide the boxplot drawing of the data.
		629	@ xrange 0,100<br />yrange 0,10<br />boxplotdata 11,22,13,15,23,43,12,12,14,2,45,32,44,13,21,24,13,19,35,21,24,23<br />boxplot x,4,5
		630	@ note: wims will not check your data input \| format. use js-error console to debug any problems.
		631	@ a javascript function 'statistics()' will parse the data and calculate the values [min,Q1,median,Q3,max] and hand them to the boxplot draw function.
		632	*/
		633	if( js_function[DRAW_JSBOXPLOT] != 1 ){ js_function[DRAW_JSBOXPLOT] = 1;}
		634	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		635	fprintf(js_include_file,"var boxplot_source = 1;var jsboxplot_data = [%s];\n",get_string(infile,1));
		636
		637	break;
		638
		639	case CANVASTYPE:
		640	canvas_type = (int) (get_real(infile,1));
		641	/*
		642	@ canvastype TYPE
		643	@ for now only usefull before commands filltoborder / floodfill / clickfill etc operations<br />Only the images of this TYPE will be scanned and filled
		644	@ default value of TYPE is DRAG_CANVAS e.g. 5 (all clickable / draggable object are in this canvas)
		645	@ use another TYPE, if you know what you are doing...
		646	@ other possible canvasses (transparent PNG pictures xsize x ysize on top of each other)<ul><li> EXTERNAL_IMAGE_CANVAS 0</li><li> BG_CANVAS 1</li><li> STATIC_CANVAS 2</li><li> MOUSE_CANVAS 3</li><li> GRID_CANVAS 4</li><li> DRAG_CANVAS 5</li><li> DRAW_CANVAS 6</li><li> TEXT_CANVAS 7</li><li> CLOCK_CANVAS 8</li><li> ANIMATE_CANVAS 9</li><li> TRACE_CANVAS 10</li><li>BOXPLOT_CANVAS 11</li><li> JSPLOT_CANVAS 100 , will increase with every call</li><li> FILL_CANVAS 200 , will increase with every call </li><li> USERDRAW_JSPLOT 300 , will increase with every call </li><li>CLICKFILL_CANVAS 400 , will increase with every call/click</li><li>BOXPLOT_CANVAS 500 , will increase with every call</li></ul>
		647	*/
		648	break;
		649
		650	case CENTERSTRING:
		651	/*
		652	@ centerstring color,y-value,the text string
		653	@ title color,y-value,the text string
		654	@ draw a string centered on the canvas at y = y-value
		655	@ can not be set "onclick" or "drag xy" (...)
		656	@ unicode supported: centerstring red,5,\\u2232
		657	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
		658	*/
		659	if( js_function[DRAW_CENTERSTRING] != 1 ){ js_function[DRAW_CENTERSTRING] = 1;}
		660	for(i=0;i<3;i++){
		661	switch(i){
		662	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		663	case 1: double_data[0] = get_real(infile,0);break; /* y in xrange*/
		664	case 2: temp = get_string_argument(infile,1);
		665	/* draw_text = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text) */
		666	decimals = find_number_of_digits(precision);
		667	string_length = snprintf(NULL,0,
		668	"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		669	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		670	snprintf(tmp_buffer,string_length,"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		671	add_to_buffer(tmp_buffer);
		672	break;
		673	default:break;
		674	}
9427	schaersvoo	675	}
		676	break;
8386	schaersvoo	677
11806	schaersvoo	678
8386	schaersvoo	679	case CIRCLE:
8299	schaersvoo	680	/*
8386	schaersvoo	681	@ circle xc,yc,width (2*r in pixels),color
9383	schaersvoo	682	@ use command 'fcircle xc,yc,d,color'
		683	@ alternative: disk for a filled circle
8386	schaersvoo	684	@ use command 'fillcolor color' to set the fillcolor
9406	schaersvoo	685	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
8386	schaersvoo	686	@ will shrink / expand on zoom out / zoom in
8299	schaersvoo	687	*/
8386	schaersvoo	688	for(i=0;i<4;i++){
		689	switch(i){
		690	case 0: double_data[0] = get_real(infile,0);break; /* x */
		691	case 1: double_data[1] = get_real(infile,0);break; /* y */
		692	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* for zoom in/out : radius in 'dx' xrange*/
		693	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		694	decimals = find_number_of_digits(precision);
11802	schaersvoo	695	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,13,[%.f],[%.f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],double_data[2],double_data[2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8386	schaersvoo	696	if(onclick > 0){click_cnt++;}
		697	/* click_cnt++;*/
		698	reset();
		699	break;
		700	default : break;
		701	}
		702	}
		703	break;
		704
		705	case CIRCLES:
		706	/*
		707	@ circles color,xc1,yc1,r1,xc2,yc2,r2...xc_n,yc_n,r_n
9383	schaersvoo	708	@ <b>attention</b> r = radius in x-range (!)
		709	@ use keyword 'filled' or command 'fcircles' to produce solid circles
		710	@ alternative : disks for filled circles
8386	schaersvoo	711	@ use command 'fillcolor color' to set the fillcolor
9406	schaersvoo	712	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> (individually)
8386	schaersvoo	713	@ will shrink / expand on zoom out / zoom in
		714	*/
8299	schaersvoo	715	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		716	fill_color = stroke_color;
8386	schaersvoo	717	i=1;
8299	schaersvoo	718	while( ! done ){ /* get next item until EOL*/
		719	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
8386	schaersvoo	720	switch (i%3){
		721	case 1:double_data[i-1] = get_real(infile,0);break; /* x */
		722	case 2:double_data[i-1] = get_real(infile,0);break; /* y */
		723	case 0:double_data[i-1] = get_real(infile,1);break; /* r */
8299	schaersvoo	724	}
		725	i++;
		726	}
		727	decimals = find_number_of_digits(precision);
8386	schaersvoo	728	for(c = 0 ; c < i-1 ; c = c+3){
11802	schaersvoo	729	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,13,[%.f],[%.f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],double_data[c+2],double_data[c+2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	730	if(onclick > 0){click_cnt++;}
8386	schaersvoo	731	/* click_cnt++; */
8299	schaersvoo	732	}
		733	reset();
		734	break;
11806	schaersvoo	735	case CLEARBUTTON:
		736	/*
		737	@ clearbutton value
		738	@ alternative : delete
		739	@ alternative : erase
		740	@ adds a button to clear the <a href="#userdraw">userdraw</a> canvas with text 'value'
		741	@ <b>attention</b> command 'clearbutton' is incompatible with <a href="multidraw">multidraw</a> based drawings<br/>(in 'multidraw' there is always a remove_object_button for every drawprimitive)
		742	@ normally <a href="#userdraw">userdraw</a> primitives have the option to use middle/right mouse button on<br /> a point of the object to remove this specific object...this clear button will remove all drawings
		743	@ uses the tooltip placeholder div element: may not be used with command 'intooltip'
		744	@ use command <a href="#inputstyle">'inputstyle'</a> to style the button...
		745	@ the clearbutton will have id="canvas_scripts[%d]" ; starting with %d=0 for the first script<br />to change the style of all "clearbutton" of all included canvasdraw scripts, use something like<br /><em>if(document.getElementById("clearbutton"+canvas_scripts[0])){<br /> var p = 0;<br /> while(document.getElementById("clearbutton"+canvas_scripts[p])){<br />  document.getElementById("clearbutton"+canvas_scripts[p]).className="some_class_name";<br />  <!−− or document.getElementById("clearbutton"+canvas_scripts[p]).setAttribute("style","some_style"); −−><br />  p++;<br /> };<br />};<br />
		746	*/
		747	if(reply_format == 29){/* eg multidraw is selected */
		748	canvas_error("command clearbutton incompatible with multidraw...only suitable for userdraw");
		749	}
		750	add_clear_button(js_include_file,canvas_root_id,input_style,get_string(infile,1));
		751	break;
8386	schaersvoo	752
11806	schaersvoo	753	case CLOCK:
7614	schaersvoo	754	/*
11806	schaersvoo	755	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
		756	@ use command 'opacity stroke-opacity,fill-opacity' to adjust foreground (stroke) and background (fill) transparency
		757	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		758	@ colors are optional: if not defined, default values will be used<br />default colours: clock 0,0,60,4,35,45,1,2<br />custom colours: clock 0,0,60,4,35,45,1,2,,,,yellow,red<br />custom colours: clock 0,0,60,4,35,45,1,2,white,green,blue,black,yellow
		759	@ if you don't want a seconds hand (or minutes...), just make it invisible by using the background color of the hourglass...
		760	@ interactive <ul><li>0 : not interactive, just clock(s)</li><li>1 : function read_canvas() will read all active clocks in H:M:S format<br />The active clock(s) can be adjusted by pupils</li><li>2 : function read_canvas() will return the clicked clock <br />(like multiplechoice; first clock in script in nr. 0 )</li><li>3: no prefab buttons...create your own buttons (or other means) to make the clock(s) adjustable by javascript function set_clock(num,type,diff)<br />wherein: num = clock id (starts with 0) ; type = 1 (hours) ; type = 2 (minutes) ; type = 3 (seconds) <br />and diff = the increment of 'type' (positive or negative) </li></ul>
		761	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		762	@ no combinations with other reply_types allowed, for now
		763	@ if interactive is set to '1', 6 buttons per clock will be displayed for adjusting a clock (H+ M+ S+ H- M- S-)<br /> set_clock(clock_id,type,incr) <br />first clock has clock_id=0 ; type : H=1,M=2,S=3 ; incr : increment integer
		764	@ note: if you need multiple -interactive- clocks on a webpage, use multiple 'clock' commands in a single script !<br />and <i>not multiple canvas scripts</i> in a single page
		765	@ note: clocks will not zoom or pan, when using command <a href='#zoom'>'zoom'</a>
7614	schaersvoo	766	*/
11806	schaersvoo	767	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		768
		769	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		770	for(i=0;i<9;i++){
		771	switch(i){
		772	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		773	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		774	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		775	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		776	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		777	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
		778	case 6: int_data[6] = get_real(infile,0);if(int_data[6] < 0 \|\| int_data[6] > 2){canvas_error("hourglass can be 0,1 or 2");}break;/* type hourglass */
		779	case 7: int_data[7] = (int)(get_real(infile,1));/* interactive 0,1,2*/
		780	switch(int_data[7]){
		781	case 0:break;
		782	case 1:if(clock_cnt == 0){
		783	if( reply_format == 0 ){
		784	reply_format = 18; /* user sets clock */
		785	/* string_length = snprintf(NULL,0,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		786	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		787	snprintf(tmp_buffer,string_length,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		788	add_to_buffer(tmp_buffer);
		789	*/
		790	fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		791	}
		792	else
		793	{
		794	canvas_error("interactive clock may not be used together with other reply_types...");
		795	}
		796	}
		797	fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S−\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
		798	break;
		799	case 3:if(clock_cnt == 0){
		800	if( reply_format == 0 ){
		801	reply_format = 18; /* user sets clock */
		802	fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,1,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		803	}
		804	else
		805	{
		806	canvas_error("interactive clock may not be used together with other reply_types...");
		807	}
		808	}
		809	/*
		810	fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S−\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
		811	*/
		812	break;
		813	case 2:if( reply_format == 0 ){
		814	reply_format = 19; /* "onclick */
		815	fprintf(js_include_file,"\n<!-- begin onclick handler for clocks -->\nvar reply = new Array();canvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();var x = evt.clientX - canvas_rect.left;var y = evt.clientY - canvas_rect.top;var p = 0;var name;var t = true;while(t){try{name = eval('clocks'+p);if( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,\"lightblue\",name.fg_color);};}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};p++;}catch(e){t=false;};};};};\n");
		816	}
		817	else
		818	{
		819	if( reply_format != 19){
		820	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		821	}
		822	}
		823	break;
		824	default: canvas_error("interactive must be set 0,1 or 2");break;
		825	}
		826	break;
		827	case 8:
		828	if(clock_cnt == 0 ){ /* set opacity's just once .... it should be a argument to clock() , for now it's OK */
		829	fprintf(js_include_file,"var clock_bg_opacity = %.2f;var clock_fg_opacity = %.2f;",fill_opacity,stroke_opacity);
		830	}
		831	temp = get_string(infile,3);/* optional colors, like: ,,red,,blue*/
		832	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		833	else{
		834	/* h_color,m_color,s_color,bg_color,fg_color */
		835	temp = ",black\",\"black\",\"red\",\"white\",\"black";}
		836	string_length = snprintf(NULL,0,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		837	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		838	snprintf(tmp_buffer,string_length,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		839	add_to_buffer(tmp_buffer);
		840	fprintf(js_include_file,"var clocks%d;",clock_cnt);
		841	clock_cnt++;
		842	break;
		843	default:break;
		844	}
		845	}
		846	break;
		847
		848
		849	case COLORPALETTE:
		850	/*
		851	@ colorpalette color_name_1,color_name_2,...,color_name_8
		852	@ opacity will be the same for all colors and is set by command <a href="#opacity">opacity [0-255],[0-255]</a>
		853	@ can be used with command <a href='#userdraw'>'userdraw clickfill,color'</a> when more than one fillcolor is wanted.<br />in that case use for example <a href='#replyformat'>replyformat 10</a> ... reply=x1:y1:color1,x2:y2:color2...<br />the pupil can choose from the given colors by clicking small coloured buttons.<br /> the click coordinates and corresponding fillcolor will be stored in read_canvas()...when using the appropriate replyformat.<br />the first color of the palette is color=0
		854	@ make sure to include the 'remove button' by using command <a href='#clearbutton'>clearbutton some_text</a>
		855	*/
		856	if( use_tooltip == 1 ){canvas_error("command 'colorpalette' is incompatible with command 'intooltip tip_text'");}
		857	fprintf(js_include_file,"var multifillcolors = [];var palettecolors = [");
		858	while( ! done ){
		859	temp = get_color(infile,1);
		860	fprintf(js_include_file,"\"%s\",",temp);
		861	}
		862	fprintf(js_include_file,"];");/* add black to avoid trouble with dangling comma... */
		863	add_color_palette(js_include_file,canvas_root_id,input_style);
		864	break;
		865
		866	case COPY:
		867	/*
		868	@ copy x,y,x1,y1,x2,y2,[filename URL]
		869	@ The image may be "bitmap" or "SVG"
		870	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		871	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
		872	@ [filename] is the URL of the image
		873	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		874	@ if command <a href="#drag">'drag x/y/xy'</a> is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valid for the next image<br />draggable / non-draggable images may be mixed<br />may be used together with preceding keywords 'snaptogrid','xsnaptogrid','ysnaptogrid' or 'snaptopoints x1,y1,x2,y2...'
		875	@ if keyword <a href="#onclick">'onclick'</a> is set before command 'copy' the image(s) is clickable (marked with a green rectangle around the image)<br />use 'read_dragdrop' to get the number of the clicked image(s)<br />use command 'clearbutton some_text' to reset the reply/click array.<br />example: 4 images; student clicked on image 2 and 3 : reply = 0,1,1,0<br />after clicking the clear button: reply = 0,0,0,0<br />May be mixed with commands 'drag x\|y\|xy' (use javascript read_canvas to get the new coordinates
		876	@ 'onclick' for external images may be mixed with canvas generated stuff (like lines,curves etc)
		877	@ you may draw / userdraw / drag other stuff on top of an "imported" image
		878	*/
		879	for(i = 0 ; i<7;i++){
7614	schaersvoo	880	switch(i){
11806	schaersvoo	881	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		882	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		883	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		884	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		885	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		886	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		887	case 6: URL = get_string(infile,1);
		888	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		889	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		890	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		891	int_data[9] = click_cnt;
		892	if( drag_type > -1 ){/* e.g. we are dragging images x/y/xy */
		893	if( reply_format == 0 ){ reply_format = 20; }
		894	int_data[8] = 2;/* drag & drop */
		895	}
		896	else
		897	{
		898	if( onclick == 1 ){
		899	reply_format = 20;
		900	int_data[8] = 1; /* onclick will be reset using 'void reset()'*/
		901	click_cnt++; /* will also be used in dragstuff ! */
		902	}
		903	else
		904	{
		905	int_data[8] = 0; /* just static image */
		906	}
		907	}
		908	/*
		909	function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,ext_img_cnt,resizable,draggable,click_cnt)
		910	*/
		911	string_length = snprintf(NULL,0, "draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,0,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9]);
		912	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		913	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,0,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9]);
		914	drag_type = -1; /* reset the drag_type indicator */
		915	ext_img_cnt++;
		916	onclick=0;
		917	add_to_buffer(tmp_buffer);
		918	break;
7614	schaersvoo	919	default: break;
		920	}
		921	}
		922	break;
11806	schaersvoo	923	/*
		924	HTML5 specs:
		925	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		926	img Specifies the image, canvas, or video element to use
		927	sx The x coordinate where to start clipping : x1 = int_data[0]
		928	sy The y coordinate where to start clipping : x2 = int_data[1]
		929	swidth The width of the clipped image : int_data[2] - int_data[0]
		930	sheight The height of the clipped image : int_data[3] - int_data[1]
		931	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		932	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		933	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		934	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		935	*/
		936	case COPYRESIZED:
		937	/*
		938	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
		939	@ The image may be any "bitmap" or "SVG"
		940	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [ filename], <br />possibly resized,<br />to the region of (dx1,dy1) to (dx2,dy2) in x/y-range
		941	@ (dx1:dy1) must be left top corner; (dx2 :dy2) must be right bottom corner of inserted image
		942	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		943	@ URL is normal URL of network reachable image file location<br />(as seen from public_html-root or network reachable 'http://some_server/my_images/test.gif'<br />(eg no special wims paths are searched !!)
		944	@ if command <a href="#drag">'drag x/y/xy'</a> is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valid for the next image<br />draggable / non-draggable images may be mixed<br />may be used together with preceding keywords 'snaptogrid','xsnaptogrid','ysnaptogrid' or 'snaptopoints x1,y1,x2,y2...'
		945	@ if keyword <a href="#onclick">'onclick'</a> is set before command 'copy' the image(s) is clickable (marked with a green rectangle around the image)<br />use 'read_dragdrop' to get the number of the clicked image(s)<br />use command 'clearbutton some_text' to reset the reply/click array.<br />example: 4 images; student clicked on image 2 and 3 : reply = 0,1,1,0<br />after clicking the clear button: reply = 0,0,0,0<br />May be mixed with commands 'drag x\|y\|xy' (use javascript read_canvas to get the new coordinates
		946	@ 'onclick' for external images may be mixed with canvas generated stuff (like lines,curves etc)
		947	@ you may draw / userdraw / drag stuff on top of an "imported" image
		948	*/
		949	for(i = 0 ; i<9;i++){
		950	switch(i){
		951	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		952	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		953	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		954	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		955	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		956	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		957	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		958	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		959	case 8: URL = get_string(infile,1);
		960	/* flag error when wrong diagonal: copyresized -1,-1,-1,-1,0,0,7,7,testfig.gif */
		961	if( int_data[7] < int_data[5] \|\| int_data[6] < int_data[4]){
		962	canvas_error("in copyresized , use:<br />left top corner (dx1:dy1) and right bottom corner (dx2:dy2) ! ");
		963	}
		964	int_data[2] = abs(int_data[2] - int_data[0]);/* swidth */
		965	int_data[3] = abs(int_data[3] - int_data[1]);/* sheight */
		966	int_data[6] = abs(int_data[6] - int_data[4]);/* width */
		967	int_data[7] = abs(int_data[7] - int_data[5]);/* height */
		968	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		969	int_data[9] = click_cnt;
		970	if( drag_type > -1 ){/* e.g. we are dragging images x/y/xy */
		971	if( reply_format == 0 ){ reply_format = 20; }
		972	int_data[8] = 2;/* drag & drop */
		973	}
		974	else
		975	{
		976	if( onclick == 1 ){
		977	reply_format = 20;
		978	int_data[8] = 1; /* onclick will be reset using 'void reset()'*/
		979	click_cnt++; /* will also be used in dragstuff ! */
		980	}
		981	else
		982	{
		983	int_data[8] = 0; /* just static image */
		984	}
		985	}
		986	/*
		987	(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,resizable,draggable,click_cnt)
		988	URL,[2],[3],[6], [7], [4],[5],[6],[7],ext_img_cnt,1, [8], [9]
		989	*/
		990	string_length = snprintf(NULL,0, "draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,1,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9]);
		991	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		992	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,1,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9]);
		993	drag_type = -1; /* reset the drag_type indicator */
		994	ext_img_cnt++;
		995	onclick=0;
		996	add_to_buffer(tmp_buffer);
		997	break;
		998	default: break;
		999	}
		1000	}
		1001	break;
8386	schaersvoo	1002
11806	schaersvoo	1003
		1004	case CROSSHAIR:
8386	schaersvoo	1005	/*
11806	schaersvoo	1006	@ crosshair x,y,color
		1007	@ draw a single crosshair point at (x;y) in color 'color'
		1008	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		1009	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1010	*/
		1011	for(i=0;i<3;i++){
		1012	switch(i){
		1013	case 0: double_data[0] = get_real(infile,0);break; /* x */
		1014	case 1: double_data[1] = get_real(infile,0);break; /* y */
		1015	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		1016	decimals = find_number_of_digits(precision);
		1017	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		1018	if(onclick > 0){click_cnt++;}
		1019	/* click_cnt++ */
		1020	reset();
		1021	break;
		1022	default:break;
		1023	}
		1024	}
		1025	break;
		1026
		1027	case CROSSHAIRS:
		1028	/*
		1029	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		1030	@ draw multiple crosshair points at given coordinates in color 'color'
		1031	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
9406	schaersvoo	1032	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
8386	schaersvoo	1033	*/
		1034	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		1035	fill_color = stroke_color;
		1036	i=0;
		1037	while( ! done ){ /* get next item until EOL*/
		1038	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		1039	if(i%2 == 0 ){
		1040	double_data[i] = get_real(infile,0); /* x */
		1041	}
		1042	else
		1043	{
		1044	double_data[i] = get_real(infile,1); /* y */
		1045	}
		1046	i++;
		1047	}
		1048	decimals = find_number_of_digits(precision);
11806	schaersvoo	1049	for(c=0 ; c < i-1 ; c = c+2){
		1050	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8386	schaersvoo	1051	if(onclick > 0){click_cnt++;}
11806	schaersvoo	1052	/* click_cnt++; */
8386	schaersvoo	1053	}
		1054	reset();
		1055	break;
		1056
11806	schaersvoo	1057	case CROSSHAIRSIZE:
7614	schaersvoo	1058	/*
11806	schaersvoo	1059	@ crosshairsize int
		1060	@ default 8 (px)
7614	schaersvoo	1061	*/
11806	schaersvoo	1062	crosshair_size = (int) (get_real(infile,1));
		1063	break;
		1064
		1065	case CURSOR:
		1066	/*
		1067	@ cursor 'some CSS cursor_style'
		1068	@ alternative : pointer
		1069	@ style can be any valid CSS property value, like crosshair,grabbing,move etc
		1070	@ wims will not check the validity of your cursor declaration
		1071	*/
		1072	fprintf(js_include_file,"canvas_div%d.style.cursor = \"%s\";",canvas_root_id,get_string(infile,1));
		1073	break;
		1074
		1075	case CURVE:
		1076	/*
		1077	@ curve color,formula(x)
		1078	@ alernative : plot color,formula(x)
		1079	@ use command <a href="#trange">trange</a> in parametric functions before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1080	@ use command <a href="#precision">"precision" </a>to ncrease the number of digits of the plotted points
		1081	@ use command <a href="#plotsteps">"plotsteps"</a> to increase / decrease the amount of plotted points (default 150)
		1082	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1083	@ if you need a plot beyond xrange / yrange, use <a href="#jsplot">"jsplot"'</a><br />(command "curve" will only calculate points within the xrange)
		1084	*/
		1085	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1086	use_parametric = FALSE;
		1087	stroke_color = get_color(infile,0);
		1088	char *fun1 = get_string_argument(infile,0);
		1089	char *fun2 = get_string_argument(infile,1);
		1090	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
		1091	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,animation_type,eval_parametric(xsize,ysize,fun1,fun2,xmin,xmax,ymin,ymax,tmin,tmax,plot_steps,precision),2line_width,2line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		1092	}
		1093	else
		1094	{
		1095	stroke_color = get_color(infile,0);
		1096	char *fun1 = get_string_argument(infile,1);
		1097	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1098	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,animation_type,eval(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		1099	}
		1100	if(onclick > 0){click_cnt++;}
		1101	/* click_cnt++; */
		1102	reset();
		1103	break;
		1104
		1105	case DASHED:
		1106	/*
		1107	@ dashed
		1108	@ keyword (no arguments required)
		1109	@ next object will be drawn with a dashed line
		1110	@ change dashing scheme by using command <a href="#dashtype">dashtype</a>
		1111	*/
		1112	use_dashed = TRUE;
		1113	break;
		1114
		1115	case DASHTYPE:
		1116	/*
		1117	@ dashtype line_width_px,space_width_px
		1118	@ every indiviual object may have its own dashtype, if needed...
		1119	@ When keyword <a href='#dashed'>dashed</a> is set, the objects will be drawn with this dashtype
		1120	@ default value "dashtype 2,2" e.g. 2px line and 2px space
		1121	@ html5 canvas specification supports more arguments (dashing schemes) ... but not all modern browsers are yet capable
		1122	*/
		1123	for(i=0;i<2;i++){
		1124	switch(i){
		1125	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		1126	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		1127	}
		1128	}
		1129	break;
		1130
		1131	case DIAMONDFILL:
		1132	/*
		1133	@ diamondfill x0,y0,dx,dy,color
		1134	@ x0,y0 in xrange / yrange
		1135	@ distances dx,dy in pixels
		1136	@ ATTENTION: NOT TO BE USED AS ALTERNATIVE FOR FLYDRAW COMMAND
		1137	*/
		1138	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
7614	schaersvoo	1139	for(i=0;i<5;i++){
		1140	switch(i){
11806	schaersvoo	1141	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		1142	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		1143	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		1144	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		1145	case 4: stroke_color = get_color(infile,1);
		1146	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		1147	string_length = snprintf(NULL,0, "draw_diamondfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1148	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1149	snprintf(tmp_buffer,string_length,"draw_diamondfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1150	add_to_buffer(tmp_buffer);
		1151	break;
		1152	default:break;
		1153	}
		1154	}
		1155	reset();
		1156	break;
8224	bpr	1157
11806	schaersvoo	1158	case DOTFILL:
		1159	/*
		1160	@ dotfill x0,y0,dx,dy,color
		1161	@ x0,y0 in xrange / yrange
		1162	@ distances dx,dy in pixels
		1163	@ radius of dots is linewidth
		1164	*/
		1165	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
11817	schaersvoo	1166	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1167	js_function[DRAW_FILLTOBORDER] = 1;
		1168	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1169	}
		1170	decimals = find_number_of_digits(precision);
11806	schaersvoo	1171	for(i=0;i<5;i++){
		1172	switch(i){
11817	schaersvoo	1173	case 0: double_data[0] = get_real(infile,0); break; /* x in px */
		1174	case 1: double_data[1] = get_real(infile,0); break; /* y in py */
		1175	case 2: int_data[0] = (int) (get_real(infile,0)); break; /* dx pixel */
		1176	case 3: int_data[1] = (int) (get_real(infile,0)); break; /* dy pixel*/
11806	schaersvoo	1177	case 4: stroke_color = get_color(infile,1);
		1178	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
11817	schaersvoo	1179	string_length = snprintf(NULL,0, "draw_dotfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1180	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11817	schaersvoo	1181	snprintf(tmp_buffer,string_length,"draw_dotfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1182	add_to_buffer(tmp_buffer);
11817	schaersvoo	1183	fill_cnt++;
7614	schaersvoo	1184	break;
11806	schaersvoo	1185	default:break;
7614	schaersvoo	1186	}
		1187	}
11806	schaersvoo	1188	reset();
		1189	break;
		1190
		1191	case DRAG:
		1192	/*
		1193	@ drag [x][y][xy]
		1194	@ the next object will be draggable in x / y / xy direction
		1195	@ the displacement can be read by 'javascript:read_dragdrop();'
		1196	@ the precision (default 2 decimals) in the student reply may be set with command <a href="#precision">'precision'.</a><br />Use this 'precision' command before this command 'drag x\|y\|xy' !
		1197	@ 'onclick' and 'drag x\|y\|xy' may be combined (for different objects: a single object can either be onclick or drag , not both )
		1198	@ 'multi_objects' will be numbered in the given x/y-sequence (example: points red,0,0,1,1,2,2,3,3 : point (0:0) is object_number 1)
		1199	@ <b>attention</b>: static objects and 'onclick/drag' objects of the same type (like point,circle,etc) with the same coordinates (e.g. objects that overlap) will give problems in the 'recognition algorithm')<br />in this example<br /><em>linewidth 4<br />point 0,0,red<br />drag xy<br />point 0,0,blue<br /></em>the blue point will not be recognised as draggable !<br /><em>linewidth 4<br />drag xy<br />point 0,0,red<br />drag xy<br />point 0,0,blue<br /></em>both points will be recognised
		1200	@ the answer is : drag_or_onclick_object_number : Xorg : Yorg : Xnew : Ynew<br />wherein object_number is the sequence number of the draggable & onclick objects in your script.<br />Only draggable & onclick objects will have an object_number (e.g things like point,crosshair,line,segment,circle,rect,triangle...etc)
		1201	@ use keyword 'snaptogrid' , 'xsnaptogrid' , 'ysnaptogrid' or command 'snaptopoints x1,y1,x2,y2,...' to switch from free to discrete movement
		1202	@ in case of external images (commands copy / copyresized) the external image can be set draggable ; always xy. <br />The function javascript;read_canvas() will return the xy-coordinates of all images.
		1203	@ note: in case an object is dragged , zooming or panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
		1204	*/
		1205	temp = get_string(infile,1);
		1206	if(strstr(temp,"xy") != NULL ){
		1207	drag_type = 0;
		1208	}
		1209	else
		1210	{
		1211	if(strstr(temp,"x") != NULL ){
		1212	drag_type = 1;
		1213	}
		1214	else
		1215	{
		1216	drag_type = 2;
		1217	}
		1218	}
		1219	/* assuming all drag&drop coordinates the same precision: so set only once */
		1220	if( print_drag_params_only_once == FALSE ){
		1221	fprintf(js_include_file,"dragdrop_precision = %d;use_dragdrop_reply = true;\n",precision);
		1222	print_drag_params_only_once = TRUE;
		1223	}
		1224	onclick = 2;
		1225	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
7614	schaersvoo	1226	break;
8386	schaersvoo	1227
11806	schaersvoo	1228	case ELLIPSE:
8351	schaersvoo	1229	/*
11806	schaersvoo	1230	@ ellipse xc,yc,radius_x,radius_y,color
		1231	@ a ellipse with center xc/yc in x/y-range
		1232	@ radius_x and radius_y are in pixels
9406	schaersvoo	1233	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
11806	schaersvoo	1234	@ will shrink / expand on zoom out / zoom in
8351	schaersvoo	1235	*/
11806	schaersvoo	1236	for(i=0;i<5;i++){
		1237	switch(i){
		1238	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		1239	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		1240	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
		1241	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
		1242	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		1243	decimals = find_number_of_digits(precision);
		1244	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,3,[%.f],[%.f],[%.f],[%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		1245	if(onclick > 0){click_cnt++;}
		1246	/* click_cnt++; */
		1247	reset();
		1248	break;
		1249	}
		1250	}
		1251	break;
		1252	case FILLALL:
		1253	/*
		1254	@ fillall color,x1,y1,x2,y2...x_n,y_n
		1255	@ fill all region containing points (x1:y1),(x2:y2)...(x_n:y_n) with color 'color'
		1256	@ any other colors (objects) in the <a href="#canvastype>canvastype</a> will act as border to the bucket fill
		1257	@ use this command after all boundary objects are declared.
		1258	@ Use command 'userdraw clickfill,color' for user click driven flood fill.
		1259	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1260	@ note: the fill-family of commands are very (client) cpu intensive operations!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
		1261	*/
		1262	decimals = find_number_of_digits(precision);
		1263	fill_color=get_color(infile,0); /* how nice: now the color comes first...*/
8351	schaersvoo	1264	i=0;
11806	schaersvoo	1265	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1266	js_function[DRAW_FILLTOBORDER] = 1;
		1267	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1268	}
8351	schaersvoo	1269	while( ! done ){ /* get next item until EOL*/
		1270	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		1271	if(i%2 == 0 ){
		1272	double_data[i] = get_real(infile,0); /* x */
		1273	}
		1274	else
		1275	{
		1276	double_data[i] = get_real(infile,1); /* y */
11818	schaersvoo	1277	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[i-1],decimals,double_data[i],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1278	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1279	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[i-1],decimals,double_data[i],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1280	add_to_buffer(tmp_buffer);
		1281	fill_cnt++;
8351	schaersvoo	1282	}
		1283	i++;
		1284	}
11806	schaersvoo	1285	break;
		1286
		1287	case FILLED:
		1288	/*
		1289	@ filled
		1290	@ keyword (no arguments required)
		1291	@ the next 'fillable' object (only) will be filled
		1292	@ use command "fillcolor color" to set fillcolor
		1293	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		1294	@ use command "fill x,y,color" or "floodfill x,y,color" to fill the space around (x;y) with color <br />pixel operation implemented in javascript: use with care !
		1295	*/
		1296	use_filled = TRUE;
		1297	break;
		1298
		1299	case FILLCOLOR:
		1300	/*
		1301	@ fillcolor colorname or #hex
		1302	@ set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		1303	@ all fillable massive objects will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		1304	*/
		1305	fill_color = get_color(infile,1);
		1306	break;
		1307
		1308	case FILLTOBORDER:
		1309	/*
		1310	@ filltoborder x,y,bordercolor,color
		1311	@ fill the region of point (x:y) with color 'color'
		1312	@ any other color will not act as border to the bucket fill
		1313	@ use this command after all boundary objects are declared.
		1314	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1315	@ note: filltoborder is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
		1316	@ maybe used together with command <a href="#userdraw">userdraw clickfill,color</a>
		1317	*/
		1318	for(i=0 ;i < 4 ; i++){
		1319	switch(i){
		1320	case 0:double_data[0] = get_real(infile,0);break;
		1321	case 1:double_data[1] = get_real(infile,0);break;
		1322	case 2:bgcolor = get_color(infile,0);break;
		1323	case 3:fill_color = get_color(infile,1);
		1324	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1325	js_function[DRAW_FILLTOBORDER] = 1;
		1326	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1327	}
		1328	decimals = find_number_of_digits(precision);
		1329	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
11818	schaersvoo	1330	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1331	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1332	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1333	add_to_buffer(tmp_buffer);
		1334	fill_cnt++;
		1335	break;
		1336	default:break;
8351	schaersvoo	1337	}
11806	schaersvoo	1338	}
		1339	reset();
		1340	break;
		1341	case FLOODFILL:
		1342	/*
		1343	@ floodfill x,y,color
		1344	@ alternative : fill x,y,color
		1345	@ fill the region of point (x:y) with color 'color'
		1346	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		1347	@ use this command after all boundary objects are declared.
		1348	@ Use command 'userdraw clickfill,color' for user click driven flood fill.
		1349	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1350	@ note: floodfill is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
		1351	*/
		1352	for(i=0 ;i < 4 ; i++){
		1353	switch(i){
		1354	case 0:double_data[0] = get_real(infile,0);break;
		1355	case 1:double_data[1] = get_real(infile,0);break;
		1356	case 2:fill_color = get_color(infile,1);
		1357	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1358	js_function[DRAW_FILLTOBORDER] = 1;
		1359	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1360	}
		1361	decimals = find_number_of_digits(precision);
		1362	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
11818	schaersvoo	1363	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1364	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1365	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1366	add_to_buffer(tmp_buffer);
		1367	fill_cnt++;
		1368	break;
		1369	default:break;
		1370	}
		1371	}
		1372	reset();
		1373	break;
		1374
		1375	case FONTCOLOR:
		1376	/*
		1377	@ fontcolor color
		1378	@ color: hexcolor or colorname
		1379	@ default: black
		1380	@ example usage: x/y-axis text
		1381	*/
		1382	font_color = get_color(infile,1);
		1383	break;
		1384
		1385	case FONTFAMILY:
		1386	/*
		1387	@ fontfamily font_description
		1388	@ set the font family; for browsers that support it
		1389	@ font_description: Ariel ,Courier, Helvetica etc
		1390	@ in case commands<br /> 'string color,x,y,the string'<br /> 'stringup color,x,y,rotation,the string'<br />fontfamily can be something like:<br />italic 34px Ariel
		1391	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1392	*/
		1393	font_family = get_string(infile,1);
		1394	break;
		1395
		1396	case FONTSIZE:
		1397	/*
		1398	@ fontsize font_size
		1399	@ default value 12
		1400	@ note:for some macro's (like grid \| legend \| xaxistext \| xlabel etc) sometimes command <a href="#fontfamily">"fontfamily"</a> can be used for some specific font-setting<br />this is however not always very straight forward...so just try and see what happens
		1401	*/
		1402	font_size = (int) (get_real(infile,1));
		1403	break;
		1404
		1405	case FUNCTION_LABEL:
		1406	/*
		1407	@ functionlabel 'some string'
		1408	@ default value "f(x)="
		1409	@ no mathml allowed (just ascii string)
		1410	@ use command 'fontsize int' to adjust the size
		1411	@ use command 'strokecolor colorname' to adjust the labels (individually, if needed)
		1412	@ if needed, use before every command 'userinput function \| inputfield \| textarea'
		1413	*/
		1414	function_label = get_string_argument(infile,1);
		1415	break;
		1416
		1417	case GRID:/* xmajor,ymajor,gridcolor [,xminor,yminor,tick length (px) ,axis/tickscolor]*/
		1418	/*
		1419	@ grid step_x,step_y,gridcolor
		1420	@ if keywords <a href="#axis">"axis"</a> or <a href="#axisnumbering">"axisnumbering"</a> are set, use :<br />grid step_x,step_y,major_color,minor_x,minor_y,tics height in px,axis_color<br />minor x step = step_x / minor_x
		1421	@ in that case, use command <a href="#fontcolor">"fontcolor"</a>, <a href="#fontsize">"fontsize"</a> and / or <a href="#fontfamily">"fontfamily"</a> to adjust font <br />defaults: black,12,Ariel
		1422	@ if xmin > 0 and/or ymin > 0 and zooming / panning is not activ: <br /> be aware that the x/y-axis numbering and x/y major/minor tic marks will not be visual <br /> as they are placed under the x-axis and left to the y-axis (in Quadrant II and IV)
		1423	@ can <b>not</b> be set <a href="#onclick">"onclick"</a> or <a href="#drag">"drag xy"</a>
		1424	@ use commands <a href="#xlabel">'xlabel some_string'</a> and/or <a href="#ylabel">'ylabel some_string'</a> to label axis;<br />use command "fontsize" to adjust size:the font family is non-configurable 'italic your_fontsize px Ariel' !
		1425	@ see commands (see <a href="#xaxis">"xaxis" or xaxistext"</a>, <a href="#yaxis">"yaxis" or "yaxistext"</a> to set tailormade values on axis (the used font is set by <a href="fontfamily">command fontfamily</a>; default '12px Ariel')
		1426	@ see command <a href="#legend">"legend"</a>to set a legend for the graph ;<br />use command <a href="#fontsize">"fontsize"</a> to adjust size (the font family is non-configurable 'bold your_fontsize px Ariel')
		1427	*/
		1428	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
		1429	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		1430	for(i=0;i<4;i++){
		1431	switch(i){
		1432	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		1433	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		1434	case 2:
		1435	if( use_axis == TRUE ){
		1436	stroke_color = get_color(infile,0);
		1437	done = FALSE;
		1438	int_data[0] = (int) (get_real(infile,0));/* xminor */
		1439	int_data[1] = (int) (get_real(infile,0));/* yminor */
		1440	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		1441	fill_color = get_color(infile,1); /* used as axis_color*/
8351	schaersvoo	1442	}
		1443	else
		1444	{
11806	schaersvoo	1445	int_data[0] = 1;
		1446	int_data[1] = 1;
		1447	stroke_color = get_color(infile,1);
		1448	fill_color = stroke_color;
8351	schaersvoo	1449	}
11806	schaersvoo	1450	if( double_data[0] <= 0 \|\| double_data[1] <= 0 \|\| int_data[0] <= 0 \|\| int_data[1] <= 0 ){canvas_error("major or minor ticks must be positive !");}
		1451	/* set snap_x snap_y values in pixels */
		1452	fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
		1453	string_length = snprintf(NULL,0, ";draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n ",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1454	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1455	snprintf(tmp_buffer,string_length,";draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n ",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1456	add_to_buffer(tmp_buffer);
		1457	break;
8351	schaersvoo	1458	}
		1459	}
		1460	reset();
		1461	break;
11806	schaersvoo	1462	case GRIDFILL:
		1463	/*
		1464	@ gridfill x0,y0,dx,dy,color
		1465	@ x0,y0 in xrange / yrange
		1466	@ distances dx,dy in pixels
		1467	@ a draggable object may <a href="#snaptogrid">snap_to_grid</a> (using keywords snaptogrid,xsnaprogrid, ysnaptogrid or snaptopoints)
		1468	@ userdraw object may snap_to_grid
		1469	*/
		1470	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		1471	for(i=0;i<5;i++){
		1472	switch(i){
		1473	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		1474	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		1475	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		1476	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		1477	case 4: stroke_color = get_color(infile,1);
		1478	string_length = snprintf(NULL,0, "draw_gridfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1479	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1480	snprintf(tmp_buffer,string_length,"draw_gridfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1481	add_to_buffer(tmp_buffer);
		1482	break;
		1483	default:break;
		1484	}
		1485	}
		1486	reset();
		1487	break;
8386	schaersvoo	1488
8244	schaersvoo	1489	case HALFLINE:
		1490	/*
		1491	@ demiline x1,y1,x2,y2,color
		1492	@ alternative : halfline
		1493	@ draws a halfline starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex)
9406	schaersvoo	1494	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
8244	schaersvoo	1495	*/
		1496	for(i=0;i<5;i++){
		1497	switch(i){
		1498	case 0: double_data[0]= get_real(infile,0);break; /* x-values */
		1499	case 1: double_data[1]= get_real(infile,0);break; /* y-values */
		1500	case 2: double_data[10]= get_real(infile,0);break; /* x-values */
		1501	case 3: double_data[11]= get_real(infile,0);break; /* y-values */
		1502	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		1503	if(double_data[0] == double_data[10]){ /* vertical halfline */
		1504	if(double_data[1] < double_data[11]){
		1505	double_data[3] = ymax + 1000;
		1506	}
		1507	else
		1508	{
		1509	double_data[3] = ymin - 1000;
		1510	}
10953	bpr	1511	double_data[2] = double_data[0];
8244	schaersvoo	1512	}
		1513	else
		1514	{ /* horizontal halfline*/
		1515	if( double_data[1] == double_data[11] ){
		1516	if( double_data[0] < double_data[10] ){
		1517	double_data[2] = xmax + 1000; /* halfline to the right */
		1518	}
		1519	else
		1520	{
		1521	double_data[2] = xmin - 1000; /* halfline to the left */
		1522	}
		1523	double_data[3] = double_data[1];
		1524	}
		1525	else
		1526	{
		1527	/* any other halfline */
		1528	/* slope */
		1529	double_data[12] = (double_data[11] - double_data[1])/(double_data[10] - double_data[0]);
		1530	/* const */
		1531	double_data[13] = double_data[1] - double_data[12]*double_data[0];
		1532	if( double_data[0] < double_data[10] ){
		1533	double_data[2] = double_data[2] + 1000;
		1534	}
		1535	else
		1536	{
		1537	double_data[2] = double_data[2] - 1000;
		1538	}
		1539	double_data[3] = double_data[12]*double_data[2] + double_data[13];
		1540	}
10953	bpr	1541	}
8244	schaersvoo	1542	decimals = find_number_of_digits(precision);
11802	schaersvoo	1543	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,18,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	1544	if(onclick > 0){click_cnt++;}
		1545	/* click_cnt++; */
		1546	reset();
8244	schaersvoo	1547	break;
		1548	}
		1549	}
		1550	break;
8386	schaersvoo	1551
8365	schaersvoo	1552	case HALFLINES:
		1553	/*
		1554	@ demilines color,x1,y1,x2,y2,....
		1555	@ alternative : halflines
		1556	@ draws halflines starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex) etc etc
9406	schaersvoo	1557	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> indiviually
8365	schaersvoo	1558	*/
		1559	stroke_color=get_color(infile,0);
		1560	fill_color = stroke_color;
		1561	i=0;
		1562	while( ! done ){ /* get next item until EOL*/
		1563	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		1564	if(i%2 == 0 ){
		1565	double_data[i] = get_real(infile,0); /* x */
		1566	}
		1567	else
		1568	{
		1569	double_data[i] = get_real(infile,1); /* y */
		1570	}
		1571	i++;
		1572	}
		1573	decimals = find_number_of_digits(precision);
		1574	for(c = 0 ; c < i-1 ; c = c+4){
		1575	if( double_data[c] == double_data[c+2] ){ /* vertical line*/
		1576	if(double_data[c+1] < double_data[c+3]){ /* upright halfline */
		1577	double_data[c+3] = ymax + 1000;
		1578	}
		1579	else
		1580	{
		1581	double_data[c+3] = ymin - 1000;/* descending halfline */
		1582	}
		1583	}
		1584	else
		1585	{
		1586	if( double_data[c+1] == double_data[c+3] ){ /* horizontal line */
		1587	if(double_data[c] < double_data[c+2] ){ /* halfline to the right */
		1588	double_data[c+2] = xmax+100;
		1589	}
		1590	else
		1591	{
		1592	double_data[c+2] = xmin-1000; /* halfline to the right */
		1593	}
		1594	}
		1595	else
		1596	{
		1597	/* m */
		1598	double m = (double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]);
		1599	/* q */
		1600	double q = double_data[c+1] - ((double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]))*double_data[c];
		1601	if(double_data[c] < double_data[c+2]){ /* to the right */
		1602	double_data[c+2] = xmax+1000; /* 1000 is needed for dragging...otherwise it's just segment */
		1603	double_data[c+3] = (m)*(double_data[c+2])+(q);
		1604	}
		1605	else
		1606	{ /* to the left */
		1607	double_data[c+2] = xmin - 1000;
		1608	double_data[c+3] = (m)*(double_data[c+2])+(q);
		1609	}
		1610	}
		1611	}
11802	schaersvoo	1612	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,18,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	1613	if(onclick > 0){click_cnt++;}
		1614	/* click_cnt++; */
8365	schaersvoo	1615	}
		1616	reset();
		1617	break;
11806	schaersvoo	1618	case HATCHFILL:
		1619	/*
		1620	@ hatchfill x0,y0,dx,dy,color
		1621	@ x0,y0 in xrange / yrange
		1622	@ distances dx,dy in pixels
		1623	*/
		1624	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		1625	for(i=0;i<5;i++){
		1626	switch(i){
		1627	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		1628	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		1629	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		1630	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		1631	case 4: stroke_color = get_color(infile,1);
		1632	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		1633	string_length = snprintf(NULL,0, "draw_hatchfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1634	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1635	snprintf(tmp_buffer,string_length,"draw_hatchfill(%d,%d,%d,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],int_data[2],int_data[3],line_width,stroke_color,stroke_opacity,xsize,ysize);
		1636	add_to_buffer(tmp_buffer);
		1637	break;
		1638	default:break;
		1639	}
		1640	}
		1641	reset();
		1642	break;
8386	schaersvoo	1643
8224	bpr	1644	case HLINE:
7614	schaersvoo	1645	/*
		1646	@ hline x,y,color
9383	schaersvoo	1647	@ alternative : horizontalline
7614	schaersvoo	1648	@ draw a horizontal line through point (x:y) in color 'color'
9373	schaersvoo	1649	@ or use command <a href='#curve'>'curve color,formula'</a> to draw the line <br />(uses more points to draw the line; is however better draggable)
9406	schaersvoo	1650	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	1651	*/
		1652	for(i=0;i<3;i++) {
		1653	switch(i){
		1654	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		1655	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		1656	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		1657	double_data[3] = double_data[1];
		1658	decimals = find_number_of_digits(precision);
11802	schaersvoo	1659	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,100xmin,decimals,100xmax,decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	1660	if(onclick > 0){click_cnt++;}
		1661	/* click_cnt++; */
		1662	reset();
7614	schaersvoo	1663	break;
		1664	}
		1665	}
		1666	break;
8366	schaersvoo	1667
		1668	case HLINES:
		1669	/*
		1670	@ hlines color,x1,y1,x2,y2,...
9383	schaersvoo	1671	@ alternative : horizontallines
8366	schaersvoo	1672	@ draw horizontal lines through points (x1:y1)...(xn:yn) in color 'color'
9406	schaersvoo	1673	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
8366	schaersvoo	1674	*/
		1675	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		1676	fill_color = stroke_color;
		1677	i=0;
		1678	while( ! done ){ /* get next item until EOL*/
		1679	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		1680	if(i%2 == 0 ){
		1681	double_data[i] = get_real(infile,0); /* x */
		1682	}
		1683	else
		1684	{
		1685	double_data[i] = get_real(infile,1); /* y */
		1686	}
		1687	i++;
		1688	}
		1689	decimals = find_number_of_digits(precision);
		1690	for(c = 0 ; c < i-1 ; c = c+2){
11802	schaersvoo	1691	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,xmin,decimals,xmax,decimals,double_data[c+1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	1692	if(onclick > 0){click_cnt++;}
		1693	/* click_cnt++; */
8366	schaersvoo	1694	}
		1695	reset();
		1696	break;
11806	schaersvoo	1697	case HTTP:
7614	schaersvoo	1698	/*
11806	schaersvoo	1699	@ http x1,y1,x2,y2,http://some_adress.com
		1700	@ an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
		1701	@ do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1702	@ can <b>not</b> be 'set onclick' or 'drag xy'
7614	schaersvoo	1703	*/
11806	schaersvoo	1704	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
		1705	for(i=0;i<5;i++){
7614	schaersvoo	1706	switch(i){
11806	schaersvoo	1707	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1708	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1709	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1710	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1711	case 4: decimals = find_number_of_digits(precision);
		1712	temp = get_string(infile,1);
		1713	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1714	string_length = snprintf(NULL,0,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
		1715	check_string_length(string_length);tmp_buffer = my_newmem(string_length+2);
		1716	snprintf(tmp_buffer,string_length,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
		1717	add_to_buffer(tmp_buffer);
7614	schaersvoo	1718	break;
		1719	}
		1720	}
11806	schaersvoo	1721	reset();
7614	schaersvoo	1722	break;
11806	schaersvoo	1723	case HTML:
8366	schaersvoo	1724	/*
11806	schaersvoo	1725	@ html x1,y1,x2,y2,html_string
		1726	@ all tags are allowed<br /> html-code using inputfields could be read using your own javascript-code. Do not use id's like 'canvas_input0' etc.
		1727	@ can be set onclick <br />(however dragging not supported)
8366	schaersvoo	1728	*/
11806	schaersvoo	1729	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1730	for(i=0;i<5;i++){
		1731	switch(i){
		1732	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1733	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1734	case 2: int_data[2]=x2px(get_real(infile,0));break;/* no more width needed : overflow */
		1735	case 3: int_data[3]=y2px(get_real(infile,0));break;/* no more height needed : overflow */
		1736	case 4: decimals = find_number_of_digits(precision);
		1737	temp = get_string(infile,1);
		1738	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1739	string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity);
		1740	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1741	snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity);
		1742	add_to_buffer(tmp_buffer);
		1743	if(onclick == 1 \|\| onclick == 2 ){click_cnt++;}
		1744	break;
		1745	default:break;
8366	schaersvoo	1746	}
		1747	}
		1748	reset();
		1749	break;
8386	schaersvoo	1750
11806	schaersvoo	1751	case IMAGEFILL:
7614	schaersvoo	1752	/*
11806	schaersvoo	1753	@ imagefill dx,dy,image_url
		1754	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		1755	@ After pattern filling ,the fill-color should be reset !
		1756	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		1757	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		1758	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		1759	@ if dx,dy is larger than the image, the whole image will be background to the next object.
7614	schaersvoo	1760	*/
11806	schaersvoo	1761	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		1762	for(i=0 ;i < 3 ; i++){
7614	schaersvoo	1763	switch(i){
11806	schaersvoo	1764	case 0:int_data[0] = (int) (get_real(infile,0));break;
		1765	case 1:int_data[1] = (int) (get_real(infile,0));break;
		1766	case 2: URL = get_string_argument(infile,1);
		1767	string_length = snprintf(NULL,0, "draw_imagefill(%d,%d,%d,\"%s\",%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],URL,xsize,ysize);
		1768	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1769	snprintf(tmp_buffer,string_length,"draw_imagefill(%d,%d,%d,\"%s\",%d,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],URL,xsize,ysize);
		1770	add_to_buffer(tmp_buffer);
		1771	break;
7614	schaersvoo	1772	}
		1773	}
11806	schaersvoo	1774	reset();
		1775	break;
		1776
		1777	case INPUTSTYLE:
		1778	/*
		1779	@ inputstyle style_description
		1780	@ may be used before any 'style-able' html object.(like inputfields or buttons)<br />or any html objects that are generated by some canvasdraw commands
		1781	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		1782	*/
		1783	input_style = get_string(infile,1);
7614	schaersvoo	1784	break;
11806	schaersvoo	1785	case INPUT:
		1786	/*
		1787	@ input x,y,size,editable,value
		1788	@ to set inputfield "readonly", use editable = 0
		1789	@ only active inputfields (editable = 1) will be read with read_canvas();
		1790	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be cleared and set readonly<br />override this by keyword <a href="#status">'status'</a>
		1791	@ may be further controlled by <a href="#inputstyle">"inputstyle"</a> (inputcss is not yet implemented...)
		1792	@ if mathml inputfields are present and / or some userdraw is performed, these data will <b>not</b> be send as well (javascript:read_canvas();)
		1793	@ use keyword <a href='#xoffset'>xoffset \| centered</a> if the inputfield should be centered on (x:y)<br /> default is the left top corner is (x:y)
		1794	*/
		1795	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
		1796	for(i = 0 ; i<5;i++){
		1797	switch(i){
		1798	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		1799	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		1800	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		1801	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1802	case 4:
		1803	temp = get_string_argument(infile,1);
		1804	string_length = snprintf(NULL,0, "draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\",%d);\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp,use_offset);
		1805	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1806	snprintf(tmp_buffer,string_length,"draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\",%d);\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp,use_offset);
		1807	add_to_buffer(tmp_buffer);
		1808	input_cnt++;break;
		1809	default: break;
		1810	}
		1811	}
		1812	if(reply_format == 0 ){reply_format = 15;}
		1813	reset();
		1814	break;
8386	schaersvoo	1815
11806	schaersvoo	1816	case INTOOLTIP:
		1817	/*
		1818	@ intooltip link_text
		1819	@ link_text is a single line (span-element)
		1820	@ link_text may also be an image URL 'http://some_server/images/my_image.png' or '$module_dir/gifs/my_image.jpg'
		1821	@ link_text may contain HTML markup
		1822	@ the canvas will be displayed in a tooltip on 'link_text'
		1823	@ the canvas is default transparent: use command <a href="#bgcolor">'bgcolor color'</a> to adjust background-color<br />the link text will also be shown with this 'bgcolor'.
		1824	@ many 'userinput stuff' will use the tooltip_placeholder_div element...only one is defined in the wims-page<br />and are therefor these commands are mutually exclusive.<br />keep this in mind...
		1825	*/
		1826	if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy or other commands using the tooltip-div...see documentation");}
		1827	if( use_tooltip == 1 ){ canvas_error("command 'intooltip' cannot be combined with command 'popup'...");}
		1828	tooltip_text = get_string(infile,1);
		1829	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		1830	use_tooltip = 1;
		1831	break;
		1832
		1833	case JSCURVE:
7614	schaersvoo	1834	/*
11806	schaersvoo	1835	@ jscurve color,formula(x)
		1836	@ alternative : jsplot color,formula(x)
		1837	@ your function will be plotted by the javascript engine of the client browser.
		1838	@ use only basic math in your curve:<br /> sqrt,^,asin,acos,atan,log,pi,abs,sin,cos,tan,e
		1839	@ use parenthesis and rawmath : use 2*x instead of 2x ; use 2^(sin(x))...etc etc<br />use error console to debug any errors...
		1840	@ <b>attention</b> : last "precision" command in the canvasdraw script determines the calculation precision of the javascript curve plot !
		1841	@ no validity check is done by wims.
		1842	@ zooming & panning are implemented :<br />use command 'zoom color' for mouse driven zooming<br />or use keyword 'setlimits' for inputfields setting xmin/xmax, ymin/ymax
		1843	@ zooming & panning is better than for curves produced by command <a href="#curve">curve color,formula</a> because for avery change in x/y-range the curve is recalculated in javascript
		1844	@ use command 'trace_jscurve formula(x)` for tracing
		1845	@ use command 'jsmath formula(x)` for calculating and displaying indiviual points on the curve
		1846	@ can <b>not</b> be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> (yet)
		1847	@ commands plotjump / plotstep are not active for 'jscurve'
		1848	@ every command jscurve will produce a new canvas (canvastype 111,112,113...) for this one curve.
		1849	@ plotting multiple js-curves on the same canvas <br/>(for example if you want to use 'userdraw clickfill,color' on <a href="#canvastype">canvastype</a> number 111 ,use :<br/> jscurve red,fun1(x),fun2(x)...fun_n(x)<br /> you want to specify individual colors \| opacity \| linewidth for these multiple js-curves.<br />use commands like: <a href="#multistrokecolors">multistrokecolors</a>,<a href="#multilinewidth">multilinewidth</a>, <a href="#multidash">multidash</a><br />, <a href="multistrokeopacity">multistroke</a><br />the <b>color</b> given for the command "jscurve <b>color</b>,formulas(x)" will not be used in that case...<br />but the color argument must still be given in any case (otherwise syntax error...)
		1850	*/
		1851	stroke_color = get_color(infile,0);
		1852	if( use_js_math == FALSE){/* add this stuff only once...*/
		1853	add_to_js_math(js_include_file);
		1854	use_js_math = TRUE;
		1855	}
		1856	if( use_js_plot == FALSE){
		1857	use_js_plot = TRUE;
		1858	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1859	}
		1860	temp = get_string(infile,1);
		1861	temp = str_replace(temp,",","\",\"");
		1862	string_length = snprintf(NULL,0, "jsplot(%d,[\"%s\"],[%d],[\"%s\"],[%.2f],[%d],%d,%d); ",JSPLOT_CANVAS+jsplot_cnt,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1863	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1864	snprintf(tmp_buffer,string_length,"jsplot(%d,[\"%s\"],[%d],[\"%s\"],[%.2f],[%d],%d,%d); ",JSPLOT_CANVAS+jsplot_cnt,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1865	add_to_buffer(tmp_buffer);
		1866	jsplot_cnt++;
		1867	/* we need to create multiple canvasses, so we may zoom and pan ?? */
		1868	break;
		1869
		1870	case JSMATH:
		1871	/*
		1872	@ jsmath some_math_function
		1873	@ will calculate an y-value from a userinput x-value and draws a crosshair on these coordinates.
		1874	@ default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
		1875	@ use command 'inputstyle some_css' for styling the display fields. Use command 'fontsize int' to size the labels 'x' and 'y'
		1876	@ example: jsmath sin(x^2)
		1877	@ the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x instead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
		1878	@ be aware that the formula's of the plotted function(s) can be found in the page javascript source
		1879	*/
		1880	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1881	if( use_js_math == FALSE){
		1882	add_to_js_math(js_include_file);
		1883	use_js_math = TRUE;
		1884	}
		1885	add_calc_y(js_include_file,canvas_root_id,get_string(infile,1),font_size,input_style);
		1886	break;
		1887	case KILLAFFINE:
		1888	/*
		1889	@ killaffine
		1890	@ keyword : resets the transformation matrix to 1,0,0,1,0,0
		1891	*/
		1892	use_affine = FALSE;
		1893	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
		1894	break;
		1895
		1896	case KILLROTATE:
		1897	/*
		1898	@ killrotate will reset the command <a href="#rotationcenter">rotationcenter xc,yc</a>
		1899	@ a following rotate command will have the first object point as rotation center
		1900	@ if not set, the rotation center will remain unchanged
		1901	*/
		1902	rotation_center= my_newmem(6);
		1903	snprintf(rotation_center,5,"null");
		1904	break;
		1905
		1906	case KILLSLIDER:
		1907	/*
		1908	@ killslider
		1909	@ keyword (no arguments required)
		1910	@ ends grouping of object under a previously defined slider
		1911	*/
		1912	slider = 0;
		1913	break;
		1914
		1915	case KILLTRANSLATION:
		1916	/*
		1917	@ killtranslation
		1918	@ alternative : killtranslate
		1919	@ resets the translation matrix to 1,0,0,1,0,0
		1920	*/
		1921	use_affine = FALSE;
		1922	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
		1923	break;
		1924
		1925	case LINE:
		1926	/*
		1927	@ line x1,y1,x2,y2,color
		1928	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		1929	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
9406	schaersvoo	1930	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	1931	*/
8386	schaersvoo	1932	for(i=0;i<5;i++){
7614	schaersvoo	1933	switch(i){
11806	schaersvoo	1934	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		1935	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		1936	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		1937	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		1938	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		1939	if( double_data[10] == double_data[12] ){ /* vertical line*/
		1940	double_data[1] = xmin;
		1941	double_data[3] = ymax;
		1942	double_data[0] = double_data[10];
		1943	double_data[2] = double_data[10];
		1944	}
		1945	else
		1946	{
		1947	if( double_data[11] == double_data[13] ){ /* horizontal line */
		1948	double_data[1] = double_data[11];
		1949	double_data[3] = double_data[11];
		1950	double_data[0] = ymin;
		1951	double_data[2] = xmax;
		1952	}
		1953	else
		1954	{
		1955	/* m */
		1956	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		1957	/* q */
		1958	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
		1959
		1960	/xmin,mxmin+q,xmax,mxmax+q/
		1961
		1962	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		1963	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		1964	double_data[0] = xmin;
		1965	double_data[2] = xmax;
		1966	}
		1967	}
		1968	decimals = find_number_of_digits(precision);
		1969	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		1970	if(onclick > 0){click_cnt++;}
		1971	/* click_cnt++;*/
		1972	reset();
		1973	break;
7614	schaersvoo	1974	}
		1975	}
		1976	break;
8386	schaersvoo	1977
11806	schaersvoo	1978	case LINES:
8370	schaersvoo	1979	/*
11806	schaersvoo	1980	@ lines color,x1,y1,x2,y2...x_n-1,y_n-1,x_n,y_n
		1981	@ draw multiple lines through points (x1:y1)--(x2:y2) ...(x_n-1:y_n-1)--(x_n:y_n) in color 'color'
		1982	@ or use multiple commands 'curve color,formula' or "jscurve color,formule" to draw the line <br />(uses more points to draw the line; is however better draggable)
		1983	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1984	@ <b>attention</b>: the flydraw command "lines" is equivalent to canvasdraw command <a href="#polyline">"polyline"</a>
8370	schaersvoo	1985	*/
		1986	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		1987	fill_color = stroke_color;
		1988	i=0;
		1989	while( ! done ){ /* get next item until EOL*/
		1990	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		1991	if(i%2 == 0 ){
		1992	double_data[i] = get_real(infile,0); /* x */
		1993	}
		1994	else
		1995	{
		1996	double_data[i] = get_real(infile,1); /* y */
		1997	}
		1998	i++;
		1999	}
		2000	decimals = find_number_of_digits(precision);
		2001	for(c = 0 ; c < i-1 ; c = c+4){
11806	schaersvoo	2002	if( double_data[c] == double_data[c+2] ){ /* vertical line*/
		2003	double_data[c+1] = xmin;
		2004	double_data[c+3] = ymax;
		2005	double_data[c+2] = double_data[c];
		2006	}
		2007	else
		2008	{
		2009	if( double_data[c+1] == double_data[c+3] ){ /* horizontal line */
		2010	double_data[c+3] = double_data[c+1];
		2011	double_data[c] = ymin;
		2012	double_data[c+2] = xmax;
		2013	}
		2014	else
		2015	{
		2016	/* m */
		2017	double m = (double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]);
		2018	/* q */
		2019	double q = double_data[c+1] - ((double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]))*double_data[c];
		2020	/xmin,mxmin+q,xmax,mxmax+q/
		2021	double_data[c+1] = (m)*(xmin)+(q);
		2022	double_data[c+3] = (m)*(xmax)+(q);
		2023	double_data[c] = xmin;
		2024	double_data[c+2] = xmax;
		2025	}
		2026	}
		2027	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	2028	if(onclick > 0){click_cnt++;}
		2029	/* click_cnt++; */
8370	schaersvoo	2030	}
		2031	reset();
		2032	break;
8386	schaersvoo	2033
11806	schaersvoo	2034
		2035	case LINEWIDTH:
7614	schaersvoo	2036	/*
11806	schaersvoo	2037	@ linewidth int
		2038	@ default 1
7614	schaersvoo	2039	*/
11806	schaersvoo	2040	line_width = (int) (get_real(infile,1));
		2041	break;
		2042
		2043	case LATTICE:
		2044	/*
		2045	@ lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
		2046	@ can <b>not</b> be set "onclick" or "drag xy"
		2047	*/
		2048	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		2049	for( i = 0; i<9; i++){
7614	schaersvoo	2050	switch(i){
11806	schaersvoo	2051	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		2052	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		2053	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
		2054	case 3: int_data[3] = (int) -1(get_real(infile,0));break; / y1-values -> y-pixels*/
		2055	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
		2056	case 5: int_data[5] = (int) -1(get_real(infile,0));break; / y2-values -> y-pixels*/
		2057	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		2058	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		2059	case 8: stroke_color=get_color(infile,1);
7614	schaersvoo	2060	decimals = find_number_of_digits(precision);
11806	schaersvoo	2061	string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
		2062	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2063	snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
		2064	add_to_buffer(tmp_buffer);break;
		2065	default:break;
7614	schaersvoo	2066	}
		2067	}
11806	schaersvoo	2068	reset();
7614	schaersvoo	2069	break;
8363	schaersvoo	2070
11806	schaersvoo	2071	case LEVELCURVE:
8363	schaersvoo	2072	/*
11806	schaersvoo	2073	@ levelcurve color,expression in x/y,l1,l2,...
		2074	@ draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
		2075	@ the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
		2076	@ every individual level curve may be set 'onclick / drag xy' <br />e.g. every single level curve (l1,l2,l3...l_n) has a unique identifier
		2077	@ note : the arrays for holding the javascript data are limited in size
		2078	@ note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
8363	schaersvoo	2079	*/
11806	schaersvoo	2080	fill_color = get_color(infile,0);
		2081	char *fun1 = get_string_argument(infile,0);
		2082	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		2083	i = 0;
		2084	done = FALSE;
		2085	while( !done ){
		2086	double_data[i] = get_real(infile,1);
		2087	i++;
		2088	}
		2089	for(c = 0 ; c < i; c++){
		2090	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,16,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,eval_levelcurve(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision,double_data[c]),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2091	if(onclick > 0){click_cnt++;}
		2092	/* click_cnt++; */
		2093	}
		2094	reset();
		2095	break;
8386	schaersvoo	2096
11806	schaersvoo	2097	case LEGEND:
		2098	/*
		2099	@ legend string1:string2:string3....string_n
		2100	@ will be used to create a legend for a graph
		2101	@ also see command <a href='#piechart'>'piechart'</a>
		2102	@ will use the same colors per default as used in the graphs : use command <a href='#legendcolors'>'legendcolors'</a> to override the default
		2103	@ use command <a href="#fontsize">fontsize</a> to adjust. (command "fontfamily" is not active for command "legend")
		2104	*/
		2105	temp = get_string(infile,1);
		2106	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2107	legend_cnt++; /* attention :starts with -1 : it will be used in piechart etc */
		2108	fprintf(js_include_file,"var legend%d = [\"%s\"];",legend_cnt,temp);
		2109	break;
		2110
		2111	case LEGENDCOLORS:
		2112	/*
		2113	@ legendcolors color1:color2:color3:...:color_n
		2114	@ will be used to colour a legend: use this command after the legend command ! e.g.<br />legend test1:test2:test3<br />legendcolors blue:red:orange
		2115	@ make sure the number of colours match the number of legend items
		2116	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
		2117	*/
		2118	if(legend_cnt == -1){canvas_error("use command \"legend\" before command \"legendcolors\" ! ");}
		2119	temp = get_string(infile,1);
		2120	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2121	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",legend_cnt,temp);
		2122	break;
		2123
		2124	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		2125	/*
		2126	@ linegraph x1:y1:x2:y2...x_n:y_n
		2127	@ will plot your data in a graph
		2128	@ may <b>only</b> to be used together with command <a href='#grid'>'grid'</a>
		2129	@ can be used together with freestyle x-axis/y-axis texts : see commands <a href='#xaxis'>'xaxis'</a>,<a href='#xaxisup'>'xaxisup'</a> and <a href='#yaxis'>'yaxis'</a>
		2130	@ use command <a href='#legend'>'legend'</a> to provide an optional legend in right-top-corner
		2131	@ also see command <a href='#piechart'>'piechart'</a>
		2132	@ multiple linegraphs may be used in a single plot
		2133	@ note: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
		2134	@ <ul><li>use command <a href='#strokecolor'>'strokecolor'</a> before a command 'linegraph' to set the color of this graph</li><li>use command <a href='#linewidth'>'linewidth'</a> before command 'linegraph' to set linewidth of this graph</li><li>use keyword <a href='#dashed'>'dashed'</a> before command 'linegraph' to set dashing of the graph</li><li>if dashing is set, use command <a href='#dashtype'>'dashtype'</a> before command 'linegraph' to set the type of dashing of the (individual) graph</li></ul>
		2135	*/
		2136	temp = get_string(infile,1);
		2137	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2138	fprintf(js_include_file,"var linegraph_%d = [\"%s\",\"%d\",\"%d\",\"%d\",\"%d\",\"%s\"];",linegraph_cnt,stroke_color,line_width,use_dashed,dashtype[0],dashtype[1],temp);
		2139	linegraph_cnt++;
		2140	reset();
		2141	break;
		2142
		2143	case MATHML:
		2144	/*
		2145	@ mathml x1,y1,x2,y2,mathml_string
		2146	@ mathml will be displayed in a rectangle left top (x1:y1)...<br />x2 and y2 are still needed, but not used as the right bottom corner of the embedded div element.
		2147	@ in case of drag(xy\|x\|y) \| onclick the div rectangle left to corner will be the drag-anchor of the mathml object
		2148	@ can be set onclick <br />javascript:read_dragdrop(); will return click numbers of mathml-objects<br />if 4 click_able object are drawn, the reply could be 1,0,1,0 ... meaning clicked on the first and third object
		2149	@ can be set draggable<br /> the javascript:read_dragdrop() will return all coordinates <br />in same order as the canvas script: unmoved object will have their original coordinates...
		2150	@ snaptogrid is supported...snaptopoints will work, but use with care...due to the primitive dragging<br />technically: the dragstuff library is not used...the mathml is embedded in a new div element and not in the html5-canvas
		2151	@ when clicked, the mathml object will be drawn in red color; the div background color will be determined by the <a href="#fillcolor">'fillcolor'</a> and <a href="#opacity">'opacity'</a> settings
		2152	@ userdraw may be combined with 'mathml' ; the read_canvas() will contain the drawing.
		2153	@ draggable or onclick 'external images' from command <a href='#copyresized'>copy or copyresized</a> can be combined with drag and/or onclick mathml
		2154	@ other drag objects (circles/rects etc) are supported , but read_dragdrop() will probably be difficult to interpret...
		2155	@ if inputfields are incorporated in mathml (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_mathml();<br /><b>attention</b>: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
		2156	@ If other inputfields (command input / command textarea) or userdraw is performed, the function read_canvas() will not read mathml. Use some generic function to read it....
		2157	*/
		2158	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		2159	for(i=0;i<5;i++){
		2160	switch(i){
		2161	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		2162	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		2163	case 2: int_data[2]=x2px(get_real(infile,0));break;/* no more width needed : overflow */
		2164	case 3: int_data[3]=y2px(get_real(infile,0));break;/* no more height needed : overflow */
		2165	case 4: decimals = find_number_of_digits(precision);
		2166	temp = get_string(infile,1);
		2167	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		2168	string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity);
		2169	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2170	snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity);
		2171	add_to_buffer(tmp_buffer);
		2172	if(onclick == 1 \|\| onclick == 2 ){click_cnt++;}
		2173	/*
		2174	in case inputs are present , trigger adding the read_mathml()
		2175	if no other reply_format is defined
		2176	note: all other reply types will include a reading of elements with id='mathml'+p)
		2177	*/
		2178	if(strstr(temp,"mathml0") != NULL){
		2179	if(reply_format == 0 ){reply_format = 16;} /* no other reply type is defined */
		2180	}
		2181	break;
		2182	default:break;
		2183	}
		2184	}
		2185	reset();
		2186	break;
		2187
		2188	case MOUSE:
		2189	/*
		2190	@ mouse color,fontsize
		2191	@ will display the cursor (x:y) coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
		2192	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2193
		2194	*/
		2195	stroke_color = get_color(infile,0);
		2196	font_size = (int) (get_real(infile,1));
		2197	tmp_buffer = my_newmem(26);
		2198	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2199	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,2);
		2200	break;
		2201
		2202
		2203	case MOUSE_DEGREE:
		2204	/*
		2205	@ mouse_degree color,fontsize
		2206	@ will display the angle in degrees between x-axis, (0:0) and the cursor (x:y) in 'color' and 'font size'<br /> using a fontfamily Ariel
		2207	@ The angle is positive in QI and QIII and the angle value is negative in QII and QIV
		2208	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2209
		2210	*/
		2211	stroke_color = get_color(infile,0);
		2212	font_size = (int) (get_real(infile,1));
		2213	tmp_buffer = my_newmem(26);
		2214	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2215	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,3);
		2216	js_function[JS_FIND_ANGLE] = 1;
		2217	break;
		2218	case MOUSE_DISPLAY:
		2219	/*
		2220	@ display TYPE,color,fontsize
		2221	@ TYPE may be x \| y \| xy \| degree \| radian \| radius
		2222	@ will display the mouse cursor coordinates as x-only,y-only,(x:y),<br />the radius of a circle (this only in case 'userdraw circle(s),color')<br />or the angle in degrees or radians for commands "userdraw arc,color" or protractor , ruler (if set dynamic)
		2223	@ use commands 'xunit' and / or 'yunit' to add the units to the mouse values.<br />The "degree \| radian" will always have the appropriate symbol)
		2224	@ just like commands 'mouse','mousex','mousey','mouse_degree'...only other name)
		2225	*/
		2226	temp = get_string_argument(infile,0);
		2227	if( strstr(temp,"xy") != NULL ){
		2228	int_data[0] = 2;
		2229	}else{
		2230	if( strstr(temp,"y") != NULL ){
		2231	int_data[0] = 1;
		2232	}else{
		2233	if( strstr(temp,"x") != NULL ){
		2234	int_data[0] = 0;
		2235	}else{
		2236	if(strstr(temp,"degree") != NULL){
		2237	int_data[0] = 3;
		2238	js_function[JS_FIND_ANGLE] = 1;
		2239	}else{
		2240	if(strstr(temp,"radian") != NULL){
		2241	int_data[0] = 4;
		2242	js_function[JS_FIND_ANGLE] = 1;
		2243	}else{
		2244	if(strstr(temp,"radius") != NULL){
		2245	int_data[0] = 5;
		2246	}else{
		2247	int_data[0] = 2;
		2248	}
		2249	}
		2250	}
		2251	}
		2252	}
		2253	}
		2254	stroke_color = get_color(infile,0);
		2255	font_size = (int) (get_real(infile,1));
		2256	tmp_buffer = my_newmem(26);
		2257	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2258	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,int_data[0]);
		2259	break;
		2260
		2261	case MOUSE_PRECISION:
		2262	/*
		2263	@ precision int
		2264	@ 1 = no decimals ; 10 = 1 decimal ; 100 = 2 decimals etc
		2265	@ may be used / changed before every object
		2266	@ In case of user interaction (like 'userdraw' or 'multidraw') this value will be used to determine the amount of decimals in the reply / answer
		2267	*/
		2268	precision = (int) (get_real(infile,1));
		2269	if(precision < 1 ){precision = 1;};
		2270	break;
		2271
		2272	case MOUSEX:
		2273	/*
		2274	@ mousex color,fontsize
		2275	@ will display the cursor x-coordinate in 'color' and 'font size'<br /> using the fontfamily Ariel
		2276	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2277
		2278	*/
		2279	stroke_color = get_color(infile,0);
		2280	font_size = (int) (get_real(infile,1));
		2281	tmp_buffer = my_newmem(26);
		2282	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2283	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,0);
		2284	break;
		2285	case MOUSEY:
		2286	/*
		2287	@ mousey color,fontsize
		2288	@ will display the cursor y-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
		2289	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2290
		2291	*/
		2292	stroke_color = get_color(infile,0);
		2293	font_size = (int) (get_real(infile,1));
		2294	tmp_buffer = my_newmem(26);
		2295	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2296	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,1);
		2297	break;
		2298
		2299	case MULTIDASH:
		2300	/*
		2301	@ multidash 0,1,1
		2302	@ meaning draw objects no. 2 (circle) and 3 (segments), in the list of command like <em>'multifill points,circle,segments'</em>, are dashed
		2303	@ use before command <a href='#multidraw'>'multidraw'</a>
		2304	@ if not set all objects will be set 'not dashed'...<br />unless a generic keyword <em>'dashed'</em> was given before command <em>'multidraw'</em>
		2305	@ the dash-type is not -yet- adjustable <br />(e.g. command <em>dashtype line_px,space_px</em> will give no control over multidraw objects)
		2306	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2307	@ always use the same sequence as is used for 'multidraw'
		2308	*/
		2309	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2310	temp = get_string(infile,1);
		2311	temp = str_replace(temp,",","\",\"");
		2312	fprintf(js_include_file,"var multidash = [\"%s\"];",temp);
		2313	reset();/* if command 'dashed' was given...reset to not-dashed */
		2314	break;
		2315
		2316	case MULTIDRAW:
		2317	/*
		2318	@ multidraw obj_type_1,obj_type_2...obj_type_11
		2319	@ for simple single object user drawings you could also use command <a href="#userdraw">'userdraw'</a>
		2320	@ implemented obj_types:<ul><li>point \| points </li><li>circle \| circles </li><li>line \| lines </li><li>segment \| segments </li><li>arrow \| arrows <br />use command 'arrowhead int' for size (default value 8 pixels)</li><li>rect \| rects </li><li>closedpoly<br /><b>only one</b> closedpolygon may be drawn.The number of 'corner points' is not preset (e.g. not limited,freestyle)<br />the polygone is closed when clicking on the first point again..(+/- 10px) </li><li>triangle \| triangles</li><li>parallelogram \| parallelograms</li><li>poly[3-9] \| polys[3-9] draw 3...9 point polygone(s): polys3 is of course triangles </li></ul>
		2321	@ additionally objects may be user labelled, using obj_type 'text'...<br />in this case allways a text input field and if <a href="multiuserinput'> multiuserinput=1 </a>also (x:y) inputfields will be added to the page.<br />use commands 'fontfamily' and 'fontcolor' to adjust. (command 'multistrokeopacity' may be set to adjust text opacity)<br />note: text is always centered on the mouse-click or user-input coordinates !<br />note: no keyboard listeners are used
		2322	@ it makes no sense using something like "multidraw point,points" ... <br />something like "multidraw polys4,polys7" will only result in drawing a '4 point polygone' and not a '7 point polygone' : this is a design flaw and not a feature...
		2323	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
		2324	@ buttons for changing the obj_type (and incase of 'multiuserinput' , some inputfields and buttons) <br />will be present in the reserved div 'tooltip_div' and can be styled using command 'inputstyle some_css'
		2325	@ the button label will be default the 'object primitive name' (like 'point', 'circles').<br />If you want a different label (e.g. an other language) ,use command 'multilabel'<br />for example in dutch: <br /><em>multilabel cirkel,lijnstuk,punten,STOP<br />multidraw circle,segment,points</em><br />(see command <a href='#multilabel'>'multilabel'</a> for more details)
		2326	@ multidraw is incompatible with command 'tooltip' (the reserved div_area is used for the multidraw control buttons)
		2327	@ all 'multidraw' drawings will scale on zooming.<br />this in contrast to the command <a href="#userdraw">'userdraw'</a>.
		2328	@ wims will <b>not</b> check the amount or validity of your command arguments ! <br />( use javascript console to debug any typo's )
		2329	@ a local function read_canvas%d will read all userbased drawings.<br />The output is always a 11 lines string with fixed sequence.<br/>line 1 = points_x+";"+points_y+"\\n"<br/>line 2 = circles_x+";"+circlespoint_y+";"+multi_radius+"\\n"<br/>line 3 = segments_x+";"+segments_y+"\\n"<br/>line 4 = arrows_x+";"+arrows_y+"\\n"<br/>line 5 = lines_x+";"+lines_y+"\\n"<br/>line 6 = triangles_x+";"+triangles_y+"\\n"<br/>line 7 = polys[3-9]_x+";"+polys[3-9]_y+"\\n"<br/>line 8 = rects_x +";"+rects_y+"\\n"<br />line 9 = closedpoly_x+";"+closedpoly_y+"\\n"<br/>line 10 = parallelogram_x+";"+parallelogram_y"\\n"<br/>line 11 = text_x+";"+text_y+";"+text"\\n"<br/>The x/y-data are in x/y-coordinate system and display precision may be set by a previous command 'precision 0 \| 10 \| 100 \| 1000...'<br />In case of circles the radius is -for the time being- rounded to pixels<br /><b>use the wims "direct exec" tool to see the format of the reply</b>
		2330	@ It is best to prepare / format the student reply in clientside javascript.<br />However in wims language you could use something like this<br />for example you are interested in the polys5 drawings of a pupil (the pupil may draw multiple poly5 objects...)<br />note: the reply for 2 poly5's is: x11,x12,x13,x14,x15,x21,x22,x23,x24,x25 ; y11,y12,y13,y14,y15,y21,y22,y23,y24,y25<br />rep = !line 7 of reply <br />rep = !translate ';' to '\\n' in $rep <br />pts = 5 # 5 points for polygon <br />x_rep = !line 1 of $rep <br />y_rep = !line 2 of $rep <br />tot = !itemcnt $x_rep <br />num_poly = $[$tot/$pts] <br />idx = 0 <br />!for p=1 to $num_poly <br /> !for s=1 to $pts <br />  !increase idx <br />  X = !item $idx of $x_rep <br />  Y = !item $idx of $y_rep <br />  # do some checking <br /> !next s <br />!next p <br />
		2331	@ <b>attention</b>: for command argument 'closedpoly' only one polygone can be drawn.<br />The last point (e.g. the point clicked near the first point) of the array is removed.
		2332	@ <em>technical: all 10 'draw primitives' + 'text' will have their own -transparent- PNG bitmap canvas. <br />So for example there can be a points_canvas entirely separated from a line_canvas.<br />This to avoid the need for a complete redraw when something is drawn to the canvas...(eg only the object_type_canvas is redrawn)<br />This in contrast to many very slow do-it-all HTML5 canvas javascript libraries.<br />The mouselisteners are attached to the canvas-div element.</em>
		2333	*/
		2334	// if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2335	if( use_userdraw == TRUE ){canvas_error("Only one userdraw primitive may be used in command 'userdraw' use command 'multidraw' for this...");}
		2336	use_userdraw = TRUE;
		2337	/* LET OP max 6 DRAW PRIMITIVES + TEXT */
		2338	temp = get_string(infile,1);
		2339	temp = str_replace(temp,",","\",\"");
		2340	/* if these are not set, set the default values for the 6 (!!!) draw_primitives + draw_text */
		2341	fprintf(js_include_file,"\
		2342	if( typeof(multistrokecolors) === 'undefined' && multistrokecolors == null ){ var multistrokecolors = ['%s','%s','%s','%s','%s','%s','%s','%s','%s'];};\
		2343	if( typeof(multifillcolors) === 'undefined' && multifillcolors == null ){ var multifillcolors = ['%s','%s','%s','%s','%s','%s','%s','%s','%s'];};\
		2344	if( typeof(multistrokeopacity) === 'undefined' && multistrokeopacity == null ){ var multistrokeopacity = ['%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f'];};\
		2345	if( typeof(multifillopacity) === 'undefined' && multifillopacity == null ){ var multifillopacity = ['%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f'];};\
		2346	if( typeof(multilinewidth) === 'undefined' && multilinewidth == null ){ var multilinewidth = ['%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
		2347	if( typeof(multifill) === 'undefined' && multifill == null ){ var multifill = ['%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
		2348	if( typeof(multidash) === 'undefined' && multidash == null ){ var multidash = ['%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
		2349	if( typeof(multilabel) === 'undefined' && multilabel == null ){ var multilabel = [\"%s\",\"stop drawing\"];};\
		2350	if( typeof(multiuserinput) === 'undefined' && multiuserinput == null ){ var multiuserinput= ['0','0','0','0','0','0','0','0'];};\
		2351	if( typeof(multisnaptogrid) == 'undefined' && multisnaptogrid == null){var multisnaptogrid;if( x_use_snap_to_grid == 1 && y_use_snap_to_grid == 1){ multisnaptogrid = [1,1,1,1,1,1,1];}else{if( x_use_snap_to_grid == 1 ){ multisnaptogrid = [2,2,2,2,2,2,2];}else{if( y_use_snap_to_grid == 1 ){ multisnaptogrid = [3,3,3,3,3,3,3];}else{ multisnaptogrid = [0,0,0,0,0,0,0];};};};};\
		2352	var arrow_head = %d;var multifont_color = '%s';var multifont_family = '%s';",
		2353	stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,
		2354	fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,
		2355	stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,
		2356	fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,
		2357	line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,
		2358	use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,
		2359	use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,
		2360	temp,arrow_head,font_color,font_family);
		2361
		2362	if(strstr(temp,"text") != NULL){
		2363	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		2364	}
		2365
		2366	/* the canvasses range from 1000 ... 1008 */
		2367	add_js_multidraw(js_include_file,canvas_root_id,temp,input_style);
		2368	reply_precision = precision;
		2369	if( reply_format == 0){reply_format = 29;}
		2370	reset();/* if command 'filled' / 'dashed' was given...reset all */
		2371	break;
		2372	case MULTILABEL:
		2373	/*
		2374	@ multilabel button_label_1,button_label_2,...,button_label_8,'stop drawing text'
		2375	@ use before command <a href='#multidraw'>'multidraw'</a>
		2376	@ if not set all labels (e.g. the value='' of input type 'button') will be set by the english names for the draw_primitives (like 'point','circle'...)
		2377	@ the 'stop drawing' button text <b>must</b> be the last item on the 'multilabel' -list <br />for example:<br /><em>multilabel punten,lijnen,Stop met Tekenen<br />multidraw points,lines</em>
		2378	@ all buttons can be 'styled' by using commant 'inputstyle'<br /><b>note:</b><em>If you want to add some CSS style to the buttons...<br />the id's of the 'draw buttons' are their english command argument<br />(e.g. id="canvasdraw_points" for the draw points button).<br />the id of the 'stop drawing' button is "canvasdraw_stop_drawing".<br />the id of the "OK" button is"canvasdraw_ok_button"</em>
		2379	@ wims will not check the amount or validity of your input
		2380	@ always use the same sequence as is used for 'multidraw'
		2381	*/
		2382	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2383	temp = get_string(infile,1);
		2384	temp = str_replace(temp,",","\",\"");
		2385	fprintf(js_include_file,"var multilabel = [\"%s\"];",temp);
		2386	break;
		2387	case MULTILINEWIDTH:
		2388	/*
		2389	@ multilinewidth linewidth_1,linewidth_2,...,linewidth_8
		2390	@ use before command <a href='#multidraw'>'multidraw'</a>
		2391	@ if not set all line width will be set by a previous command <em>'linewidth int'</em>
		2392	@ use these up to 7 different line widths for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2393	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2394	@ always use the same sequence as is used for 'multidraw'
		2395	*/
		2396	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2397	temp = get_string(infile,1);
		2398	temp = str_replace(temp,",","\",\"");
		2399	fprintf(js_include_file,"var multilinewidth = [\"%s\"];",temp);
		2400	break;
		2401	case MULTIFILL:
		2402	/*
		2403	@ multifill 0,0,1,0,1,0,0
		2404	@ meaning draw objects no. 3 and 5, in the list of command 'multifill', are filled<br />(if the object is fillable...and not a line,segment,arrow or point...)
		2405	@ use before command <a href='#multidraw'>'multidraw'</a>
		2406	@ if not set all objects -except point\|points- will be set 'not filled'...<br />unless a command 'filled' was given before command 'multifill'
		2407	@ only suitable for draw_primitives like 'circle \| circles' , 'triangle \| triangles' and 'polygon'
		2408	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2409	@ always use the same sequence as is used for 'multidraw'
		2410	*/
		2411	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2412	temp = get_string(infile,1);
		2413	temp = str_replace(temp,",","\",\"");
		2414	fprintf(js_include_file,"var multifill = [\"%s\"];",temp);
		2415	break;
		2416
		2417	case MULTIFILLCOLORS:
		2418	/*
		2419	@ multifillcolors color_name_1,color_name_2,...,color_name_8
		2420	@ use before command <a href='#multidraw'>'multidraw'</a>
		2421	@ if not set all fillcolors (for circle \| triangle \| poly[3-9] \| closedpoly ) will be 'stroke_color' , 'fill_opacity'
		2422	@ use these up to 6 colors for the draw primitives used by command 'multidraw obj_type_1,obj_type_2...obj_type_n
		2423	@ wims will <b>not</b> check if the number of colours matches the amount of draw primitives...
		2424	@ always use the same sequence as is used for 'multidraw'
		2425	@ can also be used with command <a href='#userdraw'>'userdraw clickfill,color'</a> when more than one fillcolor is wanted.<br />in that case use for example <a href='#replyformat'>replyformat 10</a> ... reply=x1:y1:color1,x2:y2:color2...<br />the colors will restart at the first color, when there are more fill-clicks than multi-fill-colors<br />if more control over the used colours is wanted , see command <a href='#colorpalette'>colorpalette color1,color2...</a>
		2426	*/
		2427	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2428	fprintf(js_include_file,"var multifillcolors = [");
		2429	while( ! done ){
		2430	temp = get_color(infile,1);
		2431	fprintf(js_include_file,"\"%s\",",temp);
		2432	}
		2433	fprintf(js_include_file,"\"0,0,0\"];");/* add black to avoid trouble with dangling comma... */
		2434	break;
		2435
		2436	case MULTIFILLOPACITY:
		2437	/*
		2438	@ multifillopacity fill_opacity_1,fill_opacity_2,...,fill_opacity_8
		2439	@ float values 0 - 1 or integer values 0 - 255
		2440	@ use before command <a href='#multidraw'>'multidraw'</a>
		2441	@ if not set all fill opacity_ will be set by previous command <em>'opacity int,int'</em> and keyword <em>'filled'</em>
		2442	@ use these up to 7 different stroke opacities for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_y</em>
		2443	@ wims will not check the amount or validity of your input
		2444	@ always use the same sequence as is used for 'multidraw'
		2445	*/
		2446	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2447	temp = get_string(infile,1);
		2448	temp = str_replace(temp,",","\",\"");
		2449	fprintf(js_include_file,"var multifillopacity = [\"%s\"];",temp);
		2450	break;
		2451	case MULTISNAPTOGRID:
		2452	/*
		2453	@ multisnaptogrid 0,1,1
		2454	@ meaning draw objects no. 2 (circle) and 3 (segments), in the list of command like <em>'multifill points,circle,segments'</em>, will snap to the xy-grid (default 1 in x/y-coordinate system: see command <a href='#snaptogrid'>'snaptogrid'</a>)
		2455	@ only the x-values snap_to_grid: <em>multisnaptogrid 0,2,2</em>
		2456	@ only the y-values snap_to_grid: <em>multisnaptogrid 0,3,3</em>
		2457	@ mixing allowed: <em>multisnaptogrid 1,2,3,0</em> e.g. the first object will snap to the xy-grid, the second draw object will snap to the x-values, the third object will snap to the y-valeus of the grid, the last object may be placed anywhere on the canvas
		2458	@ use before command <a href='#multidraw'>'multidraw'</a>
		2459	@ if not set all objects will be set 'no snap'...<br />unless a generic command 'snaptogrid' was given before command 'multidraw'
		2460	@ commands <a href='#xsnaptogrid'>'xsnaptogrid'</a>, <a href='#ysnaptogrid'>'ysnaptogrid'</a>, <a href='#snaptofunction'>'snaptofunction'</a> and <a href='#snaptopoints'>'snaptopoints</a> x1,y1,x2,y2...' are <b>not</b> supported at this time
		2461	@ always use the same sequence as is used for 'multidraw'
		2462	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2463	*/
		2464	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2465	temp = get_string(infile,1);
		2466	temp = str_replace(temp,",","\",\"");
		2467	fprintf(js_include_file,"var multisnaptogrid = [\"%s\"];",temp);
		2468	reset();/* if command 'dashed' was given...reset to not-dashed */
		2469	break;
		2470	case MULTISTROKECOLORS:
		2471	/*
		2472	@ multistrokecolors color_name_1,color_name_2,...,color_name_8
		2473	@ use before command <a href='#multidraw'>'multidraw'</a>
		2474	@ if not set all colors will be 'stroke_color' , 'stroke_opacity'
		2475	@ use these up to 6 colors for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2476	@ wims will <b>not</b> check if the number of colours matches the amount of draw primitives...
		2477	@ always use the same sequence as is used for 'multidraw'
		2478	*/
		2479	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2480	fprintf(js_include_file,"var multistrokecolors = [");
		2481	while( ! done ){
		2482	temp = get_color(infile,1);
		2483	fprintf(js_include_file,"\"%s\",",temp);
		2484	}
		2485	fprintf(js_include_file,"\"0,0,0\"];");/* add black to avoid trouble with dangling comma... */
		2486	break;
		2487	case MULTISTROKEOPACITY:
		2488	/*
		2489	@ multistrokeopacity stroke_opacity_1,stroke_opacity_2,...,stroke_opacity_7
		2490	@ float values 0 - 1 or integer values 0 - 255
		2491	@ use before command <a href='#multidraw'>'multidraw'</a>
		2492	@ if not set all stroke opacity_ will be set by previous command <em>'opacity int,int'</em>
		2493	@ use these up to 7 different stroke opacities for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2494	@ wims will not check the amount or validity of your input
		2495	@ always use the same sequence as is used for 'multidraw'
		2496	*/
		2497	if( use_tooltip == 1){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2498	temp = get_string(infile,1);
		2499	temp = str_replace(temp,",","\",\"");
		2500	fprintf(js_include_file,"var multistrokeopacity = [\"%s\"];",temp);
		2501	break;
		2502
		2503	case MULTIUSERINPUT:
		2504	/*
		2505	@ multiuserinput 0,1,1,0
		2506	@ meaning, when the command 'multidraw' is used <br />multidraw circles,points,lines,triangles<br />objects 'points' and 'lines' may additionally be 'drawn' by direct input (inputfields)<br/>all other objects must be drawn with a mouse
		2507	@ in case of circle \| circles a third inputfield for Radius (R) is added.<br />the radius must be in the x/y coordinate system (x-range) and <b>not</b> in pixels...students don't think in pixels.<br />note: R-values will not snap-to-grid
		2508	@ in case of line(s) \| segment(s) \| arrow(s) the user should write <b>x1:y1</b> in the first inputfield and <b/>x2:y2</b> in the second.<br />These 'hints' are pre-filled into the input field.<br />other coordinate delimiters are ";" and "," e.g. <b>x1;y1</b> or <b>x1,y1</b>.<br />An error message (alert box) will popup when things are not correctly...
		2509	@ in case of a triangle \| poly3, three inputfields are provided.
		2510	@ in case of 'text' and multiuserinput=1 , 3 inputfields will be shown : x,y,text
		2511	@ in case of 'text' and multiuserinput=0 , 1 inputfield will be shown : text ... a mouse click will place the text on the canvas.
		2512	@ may be styled using command <a href="#inputstyle">"inputstyle"</a>
		2513	@ an additional button 'stop drawing' may be used to combine userbased drawings with 'drag&drop' or 'onclick' elements
		2514	@ when exercise if finished (status=done) the buttons will not be shown.<br />To override this default behaviour use command / keyword 'status'
		2515	@ use before command <a href='#multidraw'>'multidraw'</a>
		2516	@ always use the same sequence as is used for 'multidraw'
		2517	*/
		2518	/* simple rawmath and input check */
		2519	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		2520	temp = get_string(infile,1);
		2521	temp = str_replace(temp,",","\",\"");
		2522	fprintf(js_include_file,"var multiuserinput = [\"%s\"];",temp);
		2523	break;
		2524
		2525	case NOXAXIS:
		2526	/*
		2527	@ noaxis
		2528	@ keyword
		2529	@ if set, the automatic x-axis numbering will be ignored
		2530	@ use command <a href="#axis">axis</a> to have a visual x/y-axis lines (see command <a href="grid">grid</a>
		2531	@ to be used before command grid (see <a href="#grid">command grid</a>)
		2532	*/
		2533	fprintf(js_include_file,"x_strings = [0,\" \"];\n");
		2534	use_axis_numbering = 1;
		2535	break;
		2536	case NOYAXIS:
		2537	/*
		2538	@ noayis
		2539	@ keyword
		2540	@ if set, the automatic y-axis numbering will be ignored
		2541	@ use command <a href="#axis">axis</a> to have a visual x/y-axis lines (see command <a href="grid">grid</a>
		2542	@ to be used before command grid (see <a href="#grid">command grid</a>)
		2543	*/
		2544	fprintf(js_include_file,"y_strings = [0,\" \"];\n");
		2545	use_axis_numbering = 1;
		2546	break;
		2547	case OPACITY:
		2548	/*
		2549	@ opacity 0-255,0-255
		2550	@ opacity 0.0 - 1.0,0.0 - 1.0
		2551	@ alternative : transparent
		2552	@ first item is stroke opacity, second is fill opacity
		2553	*/
		2554	for(i = 0 ; i<2;i++){
		2555	switch(i){
		2556	case 0: double_data[0]= get_real(infile,0);break;
		2557	case 1: double_data[1]= get_real(infile,1);break;
		2558	default: break;
		2559	}
		2560	}
		2561	if( double_data[0] > 255 \|\| double_data[1] > 255 ){ canvas_error("opacity [0 - 255] , [0 - 255] ");}/* typo or non-RGB ? */
		2562	if( double_data[0] > 1 ){ stroke_opacity = (double) (0.0039215double_data[0]); }else{ stroke_opacity = double_data[0];} / 0.0 - 1.0 */
		2563	if( double_data[0] > 1 ){ fill_opacity = (double) (0.0039215double_data[1]); }else{ fill_opacity = double_data[0];} / 0.0 - 1.0 */
		2564	break;
		2565
		2566	case ONCLICK:
		2567	/*
		2568	@ onclick
		2569	@ keyword (no arguments required)
		2570	@ if the next object is clicked, its 'object onclick_or_drag sequence number' in fly script is returned <br /> by javascript:read_canvas();
		2571	@ onclick seqeuence numbering starts at '0'.<br />e.g. if there are 6 objects set onclick, the first onclick object will have id-number '0', the last id-number '5'
		2572	@ line based objects will show an increase in line width<br />font based objects will show the text in 'bold' when clicked.
		2573	@ the click zone (accuracy) is determined by 2× the line width of the object
		2574	@ onclick and <a href="#drag">drag x\|y\|xy</a> may be combined in a single flyscript <br />(although a single object can <b>not</b> be onclick and draggable at the same time...)
		2575	@ note: not all objects may be set onclick
		2576	*/
		2577	fprintf(js_include_file,"use_dragdrop_reply = true;");
		2578	onclick = 1;
		2579
		2580	break;
		2581
		2582	case PARALLEL:
		2583	/*
		2584	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
		2585	@ can <b>not</b> be set "onclick" or "drag xy"
		2586	*/
		2587	for( i = 0;i < 8; i++ ){
		2588	switch(i){
		2589	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		2590	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		2591	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		2592	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		2593	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		2594	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		2595	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		2596	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		2597	decimals = find_number_of_digits(precision);
		2598	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,11,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d,%d],[%d,%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2599	if(onclick > 0){click_cnt++;}
		2600	/* click_cnt++*/;
		2601	reset();
		2602	break;
		2603	default: break;
		2604	}
		2605	}
		2606	break;
		2607
		2608
		2609	case PLOTSTEPS:
		2610	/*
		2611	@ plotsteps a_number
		2612	@ default 150
		2613	@ only used for commands <a href="#curve">"curve / plot"</a> and <a href="#levelcurve">"levelcurve"</a>
		2614	@ use with care !
		2615	*/
		2616	plot_steps = (int) (get_real(infile,1));
		2617	break;
		2618
		2619	case POINT:
		2620	/*
		2621	@ point x,y,color
		2622	@ draw a single point at (x;y) in color 'color'
		2623	@ use command 'linewidth int' to adust size
		2624	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		2625	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
		2626	@ attention: in case of command <a href="#rotate">'rotate angle'</a> a point has rotation center (0:0) in x/y-range
		2627	*/
		2628	for(i=0;i<3;i++){
		2629	switch(i){
		2630	case 0: double_data[0] = get_real(infile,0);break; /* x */
		2631	case 1: double_data[1] = get_real(infile,0);break; /* y */
		2632	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		2633	decimals = find_number_of_digits(precision);
		2634	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%.2f],[%d],%.2f,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],1.5line_width,line_width,1.5line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2635	/* click_cnt++; */
		2636	if(onclick > 0){click_cnt++;}
		2637	break;
		2638	default: break;
		2639	}
		2640	}
		2641	reset();
		2642	break;
		2643
		2644	case POINTS:
		2645	/*
		2646	@ points color,x1,y1,x2,y2,...,x_n,y_n
		2647	@ draw multiple points at given coordinates in color 'color'
		2648	@ use command 'linewidth int' to adust size
		2649	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
		2650	@ attention: in case of command <a href="#rotate">'rotate angle'</a> the points have rotation center (0:0) in x/y-range
		2651	*/
8363	schaersvoo	2652	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2653	fill_color = stroke_color;
		2654	i=0;
		2655	while( ! done ){ /* get next item until EOL*/
		2656	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2657	if(i%2 == 0 ){
		2658	double_data[i] = get_real(infile,0); /* x */
		2659	}
		2660	else
		2661	{
		2662	double_data[i] = get_real(infile,1); /* y */
		2663	}
		2664	i++;
		2665	}
		2666	decimals = find_number_of_digits(precision);
11806	schaersvoo	2667	for(c = 0 ; c < i-1 ; c = c+2){
		2668	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%.2f],[%d],%.2f,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],1.5line_width,line_width,1.5line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	2669	/* click_cnt++; */
11806	schaersvoo	2670	if(onclick > 0){click_cnt++;}
8363	schaersvoo	2671	}
		2672	reset();
		2673	break;
11806	schaersvoo	2674
		2675	case POLY:
		2676	/*
		2677	@ poly color,x1,y1,x2,y2...x_n,y_n
		2678	@ polygon color,x1,y1,x2,y2...x_n,y_n
		2679	@ draw closed polygon
		2680	@ use command 'fpoly' to fill it or use keyword <a href='#filled'>'filled'</a>
		2681	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		2682	*/
		2683	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2684	i=0;
		2685	c=0;
		2686	while( ! done ){ /* get next item until EOL*/
		2687	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2688	for( c = 0 ; c < 2; c++){
		2689	if(c == 0 ){
		2690	double_data[i] = get_real(infile,0);
		2691	i++;
		2692	}
		2693	else
		2694	{
		2695	double_data[i] = get_real(infile,1);
		2696	i++;
		2697	}
		2698	}
		2699	}
		2700	/* draw path : closed & optional filled */
		2701	decimals = find_number_of_digits(precision);
		2702	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2703	if(onclick > 0){click_cnt++;}
		2704	/* click_cnt++; */
		2705	reset();
		2706	break;
		2707
7614	schaersvoo	2708	case POLYLINE:
		2709	/*
		2710	@ polyline color,x1,y1,x2,y2...x_n,y_n
10975	schaersvoo	2711	@ brokenline color,x1,y1,x2,y2...x_n,y_n
		2712	@ path color,x1,y1,x2,y2...x_n,y_n
		2713	@ remark: there is <b>no</b> command polylines \| brokenlines \| paths ... just use multiple commands "polyline ,x1,y1,x2,y2...x_n,y_n"
		2714	@ remark: there are commands "userdraw path(s),color" and "userdraw polyline,color"... these are two entirely different things !<br />the path(s) userdraw commands may be used for freehand drawing(s)<br />the polyline userdraw command is analogue to this polyline\|brokenline command
		2715	@ the command interconnects the points in the given order with a line (canvasdraw will not close the drawing: use command <a href="#poly">polygon</a> for this)
		2716	@ use command <a href='#segments'>'segments'</a> for a series of segments.<br />these may be clicked/dragged individually
9406	schaersvoo	2717	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	2718	*/
		2719	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2720	i=0;
		2721	c=0;
		2722	while( ! done ){ /* get next item until EOL*/
		2723	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2724	for( c = 0 ; c < 2; c++){
		2725	if(c == 0 ){
		2726	double_data[i] = get_real(infile,0);
		2727	i++;
		2728	}
		2729	else
		2730	{
		2731	double_data[i] = get_real(infile,1);
		2732	i++;
		2733	}
		2734	}
		2735	}
		2736	/* draw path : not closed & not filled */
		2737	decimals = find_number_of_digits(precision);
11802	schaersvoo	2738	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	2739	if(onclick > 0){click_cnt++;}
		2740	/* click_cnt++;*/
		2741	reset();
7614	schaersvoo	2742	break;
11806	schaersvoo	2743
		2744	case POPUP:
		2745	/*
		2746	@ popup
		2747	@ keyword (no arguments)
		2748	@ if fly-script starts with keyword 'popup', the canvas image will be exclusively in a popup window (xsize px × ysize px)
		2749	@ if keyword 'popup' is used after command 'size xsize,ysize' the canvas will also be displayed in a popup window with size 'xsize × ysize'
		2750	@ the popup window will be embedded into the page as a 'normal' image , when 'status=done' ; override with keyword <a href="#status"> 'nostatus'</a>
		2751	@ to access the read_canvas and read_dragdrop functions in a popup window, use:<br /><em><br /> function read_all(){<br /> if( typeof popup !== 'undefined' ){<br /> var fun1 = popup['read_dragdrop'+canvas_scripts[0]];<br /> var fun2 = popup['read_canvas'+canvas_scripts[0]];<br /> popup.close();<br /> return "dragdrop="+fun1()+"\\ncanvas="+fun2();<br /> };<br /></em>
		2752	@ to set a canvasdraw produced <a href="#clock">clock</a> or multiple clocks...use something like:<br /><em>popup.set_clock(clock_id,type,diff);</em><br />as js-function for a button (or something else) in your document page.<br />wherein <b>clock_id</b> starts with 0 for the first clock<br /><b>type</b> is 1 for Hours,2 for Minutes and 3 for Seconds<br /><b>diff</b> is the increment (positive or negative) per click
		2753	*/
		2754	use_tooltip = 2;
		2755	break;
		2756
		2757	case PROTRACTOR:
7614	schaersvoo	2758	/*
11806	schaersvoo	2759	@ protractor x,y,x_width,type,mode,use_a_scale
		2760	@ x,y are the initial location
		2761	@ x_width : give the width in x-coordinate system (e.g. not in pixels !)
		2762	@ type = 1 : a triangle range 0 - 180<br />type = 2 : a circle shape 0 - 360
		2763	@ mode : use -1 to set the protractor interactive (mouse movement of protractor)<br />use mode = '0° - 360°' to set the protractor with a static angle of some value
		2764	@ if the value of the user_rotation angle is to be shown...use command <a href='#display'>display degree,color,fontsize</a><a href='#display'>display radian,color,fontsize</a>
		2765	@ use_scale = 1 : the protractor will have some scale values printed; use_scale=0 to disable
		2766	@ the rotating direction of the mouse around the protractor determines the clockwise/ counter clockwise rotation of the protractor...
		2767	@ commands <em>stroke_color \| fill_color \| linewidth \| opacity \| font_family</em> will determine the looks of the protractor.
		2768	@ default replyformat: reply[0] = x;reply[1] = y;reply[2] = angle_in_radians<br />use command 'precision' to set the reply precision.
		2769	@ if combined with a ruler, use replyformat = 32
		2770	@ command <em>snap_to_grid</em> may be used to assist the pupil at placing the protractor
		2771	@ when using command 'zoom' , pay <b>attention</b> to the size and symmetry of your canvas<br />...to avoid a partial image, locate the start position near the center of the visual canvas<br /><em>technical:<br /> the actual 'protractor' is just a static generated image in a new canvas-memory<br />This image is only generated once, and a copy of its bitmap is translated & rotated onto the visible canvas.<br />That is the reason for the 'high-speed dragging and rotating'.<br />I've limited its size to xsize × ysize e.g. the same size as the visual canvas... </em>
		2772	@ only one protractor allowed (for the time being)
		2773	@ usage: first left click on the protractor will activate dragging;<br />a second left click will activate rotating (just move mouse around)<br />a third click will freeze this position and the x/y-coordinate and angle in radians will be stored in reply(3)<br />a next click will restart this sequence...
7614	schaersvoo	2774	*/
11806	schaersvoo	2775	for( i = 0;i < 6; i++ ){
		2776	switch(i){
		2777	case 0: double_data[0] = get_real(infile,0);break; /* x-center */
		2778	case 1: double_data[1] = get_real(infile,0);break; /* y-center */
		2779	case 2: double_data[2] = get_real(infile,0);break; /* x-width */
		2780	case 3: int_data[0] = (int)(get_real(infile,0));break; /* type: 1==triangle 2 == circle */
		2781	case 4: int_data[1] = (int)(get_real(infile,0));break; /* passive mode == 0; active mode == -1 */
		2782	case 5: int_data[2] = (int)(get_real(infile,1)); /* use scale */
		2783	decimals = find_number_of_digits(precision);
		2784	if( int_data[2] < 0 ){
		2785	if( js_function[JS_FIND_ANGLE] != 1 ){ /* add je function for calculating angle */
		2786	js_function[JS_FIND_ANGLE] = 1;
		2787	}
		2788	}
		2789	add_js_protractor(js_include_file,canvas_root_id,int_data[0],double_data[0],double_data[1],double_data[2],font_family,stroke_color,stroke_opacity,fill_color,fill_opacity,line_width,int_data[2],int_data[1]);
		2790
		2791	string_length = snprintf(NULL,0,";protractor%d(); ",canvas_root_id);
		2792	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2793	snprintf(tmp_buffer,string_length,";protractor%d(); ",canvas_root_id);
		2794	add_to_buffer(tmp_buffer);
		2795	reply_precision = precision;
		2796	/* no reply from protractor if non-interactive */
		2797	if( reply_format == 0 && int_data[1] == -1 ){reply_format = 30;}
		2798	break;
		2799	default: break;
		2800	}
		2801	}
		2802	break;
		2803
		2804	case PIXELS:
		2805	/*
		2806	@ pixels color,x1,y1,x2,y2,x3,y3...
		2807	@ draw rectangular "points" with diameter 1 pixel
		2808	@ pixels can <b>not</b> be dragged or clicked
		2809	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2810	*/
		2811	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2812	stroke_color=get_color(infile,0);
7614	schaersvoo	2813	i=0;
		2814	c=0;
		2815	while( ! done ){ /* get next item until EOL*/
		2816	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2817	for( c = 0 ; c < 2; c++){
		2818	if(c == 0 ){
		2819	double_data[i] = get_real(infile,0);
		2820	i++;
		2821	}
		2822	else
		2823	{
		2824	double_data[i] = get_real(infile,1);
		2825	i++;
		2826	}
		2827	}
		2828	}
11806	schaersvoo	2829	decimals = find_number_of_digits(precision);
		2830	/* double_xy2js_array(double xy[],int len,int decimals) /
		2831	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2832	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2833	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2834	add_to_buffer(tmp_buffer);
		2835	reset();
7614	schaersvoo	2836	break;
11806	schaersvoo	2837
		2838	case PIXELSIZE:
7614	schaersvoo	2839	/*
11806	schaersvoo	2840	@ pixelsize int
		2841	@ in case you want to deviate from default pixelsize = 1(...)
7614	schaersvoo	2842	*/
11806	schaersvoo	2843	pixelsize = (int) get_real(infile,1);
		2844	break;
8105	schaersvoo	2845
11806	schaersvoo	2846	case PIECHART:
7614	schaersvoo	2847	/*
11806	schaersvoo	2848	@ piechart xc,yc,radius,'data+colorlist'
		2849	@ (xc : yc) center of circle diagram in xrange/yrange
		2850	@ radius in pixels
		2851	@ data+color list: a colon separated list of raw data and corresponding colours<br />canvasdraw will not check validity of colornames...<br />in case of trouble look into javascript debugging of your browser
		2852	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		2853	@ the number of colors must match the number of data.
		2854	@ use command "<a href='#opacity'>'opacity'</a> to adjust fill_opacity of colours
		2855	@ use command <a href='#legend'>'legend'</a> to automatically create a legend <br />using the same colours as pie segments<br />unicode allowed in legend<br />expect javascript trouble if the amount of 'pie-slices', 'pie-colours' 'pie-legend-titles' do not match<br />a javascript console is your best friend...<br />use command 'fontfamily' to set the font of the legend.
7614	schaersvoo	2856	*/
11806	schaersvoo	2857	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
7614	schaersvoo	2858	for(i=0;i<5;i++){
		2859	switch(i){
11806	schaersvoo	2860	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2861	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2862	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		2863	case 3: temp = get_string(infile,1);
		2864	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
		2865	string_length = snprintf(NULL,0,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
		2866	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2867	snprintf(tmp_buffer,string_length,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
		2868	add_to_buffer(tmp_buffer);
		2869	break;
		2870	default:break;
7614	schaersvoo	2871	}
		2872	}
11806	schaersvoo	2873	reset();
7614	schaersvoo	2874	break;
8304	schaersvoo	2875
7614	schaersvoo	2876	case RAYS:
		2877	/*
		2878	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		2879	@ draw rays in color 'color' and center (xc:yc)
7786	schaersvoo	2880	@ may be set draggable or onclick (every individual ray)
7614	schaersvoo	2881	*/
		2882	stroke_color=get_color(infile,0);
7786	schaersvoo	2883	fill_color = stroke_color;
		2884	double_data[0] = get_real(infile,0);/* xc */
		2885	double_data[1] = get_real(infile,0);/* yc */
		2886	i=2;
		2887	while( ! done ){ /* get next item until EOL*/
		2888	if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
		2889	if(i%2 == 0 ){
		2890	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	2891	}
7786	schaersvoo	2892	else
		2893	{
		2894	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	2895	}
7786	schaersvoo	2896	fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
		2897	i++;
7614	schaersvoo	2898	}
8224	bpr	2899
		2900	if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
		2901	decimals = find_number_of_digits(precision);
7786	schaersvoo	2902	for(c=2; c<i;c = c+2){
11802	schaersvoo	2903	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[c],decimals,double_data[1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	2904	/* click_cnt++; */
		2905	if(onclick > 0){click_cnt++;}
7614	schaersvoo	2906	}
		2907	reset();
		2908	break;
8304	schaersvoo	2909
11806	schaersvoo	2910	case RECT:
8386	schaersvoo	2911	/*
11806	schaersvoo	2912	@ rect x1,y1,x2,y2,color
		2913	@ use command 'frect x1,y1,x2,y2,color' for a filled rectangle
		2914	@ use command/keyword <a href='#filled'>'filled'</a> before command 'rect x1,y1,x2,y2,color'
9406	schaersvoo	2915	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
8386	schaersvoo	2916	*/
11806	schaersvoo	2917	for(i=0;i<5;i++){
		2918	switch(i){
		2919	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		2920	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		2921	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		2922	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		2923	case 4:stroke_color = get_color(infile,1);/* name or hex color */
8386	schaersvoo	2924	decimals = find_number_of_digits(precision);
11806	schaersvoo	2925	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[2],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[3],decimals,double_data[3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2926	if(onclick > 0){click_cnt++;}
		2927	/* click_cnt++; */
8386	schaersvoo	2928	reset();
		2929	break;
11806	schaersvoo	2930	}
		2931	}
		2932	break;
8386	schaersvoo	2933
11806	schaersvoo	2934	case RECTS:
8304	schaersvoo	2935	/*
11806	schaersvoo	2936	@ rects color,x1,y1,x2,y2,.....
		2937	@ use command 'frect color,x1,y1,x2,y2,.....' for a filled rectangle
		2938	@ use command/keyword <a href='#filled'>'filled'</a> before command 'rects color,x1,y1,x2,y2,....'
		2939	@ use command 'fillcolor color' before 'frects' to set the fill colour.
9406	schaersvoo	2940	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
8304	schaersvoo	2941	*/
		2942	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2943	fill_color = stroke_color;
		2944	i=0;
		2945	while( ! done ){ /* get next item until EOL*/
		2946	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2947	if(i%2 == 0 ){
		2948	double_data[i] = get_real(infile,0); /* x */
		2949	}
		2950	else
		2951	{
		2952	double_data[i] = get_real(infile,1); /* y */
		2953	}
		2954	i++;
		2955	}
		2956	decimals = find_number_of_digits(precision);
		2957	for(c = 0 ; c < i-1 ; c = c+4){
11806	schaersvoo	2958	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+2],decimals,double_data[c],decimals,double_data[c+1],decimals,double_data[c+1],decimals,double_data[c+3],decimals,double_data[c+3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		2959	if(onclick > 0){click_cnt++;}
8379	schaersvoo	2960	/* click_cnt++; */
8304	schaersvoo	2961	}
		2962	reset();
		2963	break;
8386	schaersvoo	2964
11806	schaersvoo	2965	case REPLYFORMAT:
7614	schaersvoo	2966	/*
11806	schaersvoo	2967	@ replyformat number
		2968	@ use number=-1 to deactivate the js-functions read_canvas() and read_dragdrop()
		2969	@ default values should be fine !
		2970	@ use command 'precision [0,1,10,100,1000,10000...]' before command 'replyformat' to set the desired number of decimals in the student reply / drawing
		2971	@ the last value for 'precision int' will be used to calculate the reply coordinates, if needed (read_canvas();)
		2972	@ choose<ul><li>1 = x1,x2,x3,x4....x_n<br />y1,y2,y3,y4....y_n<br /><br />x/y in pixels</li><li>2 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>3 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in pixels <br /> r in pixels</li><li>4 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in xrange / yrange coordinate system<br /> r in pixels</li><li>5 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in pixels<br /></li><li>6 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in pixels</li><li>8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in xrange / yrange coordinate system</li><li>9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in pixels</li><li>10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in xrange / yrange coordinate system</li><li>11 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br /> Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in xrange / yrange coordinate system</li><li>12 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br />Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in pixels</li><li>13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2<br /> x/y in xrange / yrange coordinate system</li><li>14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2<br /> x/y in pixels</li><li>15 = reply from inputfields,textareas<br /> reply1,reply2,reply3,...,reply_n</li><li>16 = mathml input fields </li><li>17 = read "userdraw text,color" only (x1,y1,text1 \\n x2,y2,text2...\\n...x_n,y_n,text_n <br /> x/y-values are in xrang/yrange</li><li>18 = read_canvas() will read all interactive clocks in H1:M1:S1,H2:M2:S2...Hn:Mn:Sn</li><li>19 = read_canvas() will return the object number of marked / clicked object (clock)<br />analogue to (shape library) onclick command </li><li>20 = read_canvas() will reply "object_number:x:y" of external images : object_number of the first draggable external image in the fly-script starts with 0 <br />e.g. expect something like 0:-5:4,1:6:2,2:-2:-5 <br /> the first image position is (-5:4) , the second image position is (6:2) and the third image position is (-2:-5) <li>21 = (x1:y1) (x2:y2) ... (x_n:y_n)<br />verbatim coordinate return</li><li>22 = returns an array .... reply[0]=x1 reply[1]=y1 reply[2]=x2 reply[3]=y2 ... reply[n-1]=x_n reply[n]=y_n<br /> x/y in xrange / yrange coordinate system</li><li>23 : can only be used for drawtype 'polyline'<br />a typical click sequence in drawtype polyline is x1,y1,x2,y2,x2,y2,x3,y3,x3,y3.....,x(n-1),y(n-1),x(n-1),y(n-1),xn,yn --replyformat 23--> x1,y1,x2,y2,x3,y3,.....x(n-1),y(n-1),xn,yn multiple occurences will be filtered out.The reply will be in x-y-range (xreply \\n yreply)</li><li>24 = read all inputfield values: even those set 'readonly'</li><li>25 = angle1,angle2...angle_n : will return the radius (one or many) of the user drawn circle segment in degrees </li><li>26 = rad1,rad2...rad_n : will return the radius (one or many) of the user drawn circle segment in radians </li><li>27 = return (only) userdraw inputfields x1,y1,text1 \\n x2,y2,text2...\\n...x_n,y_n,text_n</li><li>28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n <br />x / y / r in xrange / yrange coordinate system: may be used to reinput into command 'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'<br /> will not return anything else (e.g. no inputfields , text etc)</li></ul>
		2973
		2974	*/
		2975	reply_format = (int) get_real(infile,1);
		2976	reply_precision = precision;
		2977	break;
		2978
		2979	case ROUNDRECT:
		2980	/*
		2981	@ roundrect x1,y1,x2,y2,radius in px,color
		2982	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
		2983	@ use command/keyword <a href='#filled'>'filled'</a> before command 'roundrect x1,y1,x2,y2,radius,color'
		2984	@ fillcolor will be identical to 'color'
9406	schaersvoo	2985	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	2986	*/
11806	schaersvoo	2987	for(i=0;i<6;i++){
		2988	switch(i){
		2989	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		2990	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		2991	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		2992	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		2993	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		2994	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		2995	/* ensure no inverted roundrect is produced... */
		2996	if( double_data[0] > double_data[2] ){double_data[4] = double_data[0];double_data[0] = double_data[2];double_data[2] = double_data[4];}
		2997	if( double_data[3] > double_data[1] ){double_data[4] = double_data[1];double_data[1] = double_data[3];double_data[3] = double_data[4];}
7614	schaersvoo	2998	decimals = find_number_of_digits(precision);
11806	schaersvoo	2999	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,6,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
8379	schaersvoo	3000	if(onclick > 0){click_cnt++;}
		3001	/* click_cnt++;*/
		3002	reset();
11806	schaersvoo	3003	break;
		3004	}
		3005	}
		3006	break;
8386	schaersvoo	3007
11806	schaersvoo	3008	case ROUNDRECTS:
8347	schaersvoo	3009	/*
11806	schaersvoo	3010	@ roundrects color,radius in px,x1,y1,x2,y2,x3,y3,x4,y4,....
		3011	@ for filled roundrects use command/keyword <a href='#filled'>'filled'</a> before command
9406	schaersvoo	3012	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
8347	schaersvoo	3013	*/
11806	schaersvoo	3014
8347	schaersvoo	3015	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
11806	schaersvoo	3016	int_data[0] = (int) (get_real(infile,0)); /* radius value in pixels */
8347	schaersvoo	3017	fill_color = stroke_color;
		3018	i=0;
		3019	while( ! done ){ /* get next item until EOL*/
		3020	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		3021	if(i%2 == 0 ){
		3022	double_data[i] = get_real(infile,0); /* x */
		3023	}
		3024	else
		3025	{
		3026	double_data[i] = get_real(infile,1); /* y */
		3027	}
		3028	i++;
		3029	}
		3030	decimals = find_number_of_digits(precision);
		3031	for(c = 0 ; c < i-1 ; c = c+4){
11806	schaersvoo	3032	/* ensure no inverted roundrect is produced... */
		3033	if( double_data[c] > double_data[c+2] ){double_data[c+4] = double_data[c];double_data[c] = double_data[c+2];double_data[c+2] = double_data[c+4];}
		3034	if( double_data[c+3] > double_data[c+1] ){double_data[c+4] = double_data[c+1];double_data[c+1] = double_data[c+3];double_data[c+3] = double_data[c+4];}
		3035	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,6,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3036	if(onclick > 0){click_cnt++;}
8379	schaersvoo	3037	/* click_cnt++; */
8347	schaersvoo	3038	}
		3039	reset();
		3040	break;
8386	schaersvoo	3041
11806	schaersvoo	3042	case RULER:
7614	schaersvoo	3043	/*
11806	schaersvoo	3044	@ ruler x,y,x-width ,y-height,mode
		3045	@ x,y are the initial location
		3046	@ x-width , y-height are the ruler dimensions width & height in xy-coordinate system
		3047	@ the ruler scale is by definition the x-scale, set by command 'xrange'<br />for example: a ruler x-width of 6 will have a scale ranging from 0 to 6
		3048	@ mode : use -1 to set the ruler interactive (eg mouse movement of ruler; drag & rotate)<br />use mode = '0° - 360°' to set the ruler with a static angle of some value
		3049	@ if combined with a protractor, use replyformat = 32
		3050	@ only one ruler allowed (for the time being)
		3051	@ when using command 'zoom' , pay <b>attention</b> to the size and symmetry of your canvas<br />...to avoid a partial image, locate the start position near the center of the visual canvas<br /><em>technical:<br /> the actual 'ruler' is just a static generated image in a new canvas-memory<br />This image is only generated once, and a copy of its bitmap is translated & rotated onto the visible canvas.<br />That is the reason for the 'high-speed dragging and rotating'.<br />I've limited its size to xsize × ysize e.g. the same size as the visual canvas... </em>
		3052	@ usage: first left click on the ruler will activate dragging;<br />a second left click will activate rotating (just move mouse around)<br />a third click will freeze this position and the x/y-coordinate and angle in radians will be stored in reply(3)<br />a next click will restart this sequence...
7614	schaersvoo	3053	*/
11806	schaersvoo	3054	for( i = 0;i < 5; i++ ){
7614	schaersvoo	3055	switch(i){
11806	schaersvoo	3056	case 0: double_data[0] = get_real(infile,0);break; /* x-center */
		3057	case 1: double_data[1] = get_real(infile,0);break; /* y-center */
		3058	case 2: double_data[2] = get_real(infile,0);break; /* x-width */
		3059	case 3: double_data[3] = get_real(infile,0);break; /* y-width */
		3060	case 4: int_data[0] = (int)(get_real(infile,1)); /* passive mode */
		3061	decimals = find_number_of_digits(precision);
		3062	if( int_data[0] < 0 ){
		3063	if( js_function[JS_FIND_ANGLE] != 1 ){ js_function[JS_FIND_ANGLE] = 1; }
		3064	}
		3065	add_js_ruler(js_include_file,canvas_root_id,double_data[0],double_data[1],double_data[2],double_data[3],font_family,stroke_color,stroke_opacity,fill_color,fill_opacity,line_width,int_data[0]);
		3066	string_length = snprintf(NULL,0,";ruler%d(); ",canvas_root_id);
		3067	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3068	snprintf(tmp_buffer,string_length,";ruler%d(); ",canvas_root_id);
		3069	add_to_buffer(tmp_buffer);
		3070	reply_precision = precision;
		3071	/* no reply from ruler if non-interactive */
		3072	if( reply_format == 0 && int_data[0] == -1 ){reply_format = 31;}
7614	schaersvoo	3073	break;
		3074	default: break;
		3075	}
		3076	}
		3077	break;
8386	schaersvoo	3078
11806	schaersvoo	3079	case RESETOFFSET:
7614	schaersvoo	3080	/*
11806	schaersvoo	3081	@ resetoffset
		3082	@ keyword ; use to restore text placement on the canvas to the real (x;y) coordinates of the left bottom corner of the text
		3083	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-librariy
7614	schaersvoo	3084	*/
11806	schaersvoo	3085	use_offset = 0;
		3086	break;
		3087
		3088	case ROTATE:
		3089	/*
		3090	@ rotate rotation_angle
		3091	@ angle in degrees
		3092	@ (only) the next object will be rotated is given angle
		3093	@ positive values rotate counter clockwise
		3094	@ attention: all objects will be rotated around their first point...<br /><em>rotate 45</em><br /> <em>triangle 1,1,5,1,3,4,red</em><br />will rotate 45 degrees around point (1:1)
		3095	@ if another rotation center is needed, use command <a href="#rotationcenter">'rotationcenter xc,yc'</a>.<br />to reset this rotationcenter, use keyword <a href="killrotate">'killrotate'</a>
		3096	@ attention: rotate will mess up the interactivity of the rotated object <br />e.g. if combined with command <a href="#drag">"drag xy"</a> or keyword <a href="onclick">"onclick"</a> : the mouse recognises the original -unrotated- coordinates of the object
		3097	*/
		3098	use_rotate = TRUE;
		3099	angle = -1(get_real(infile,1));/ -1 : to be compatible with Flydraw... */
7614	schaersvoo	3100	break;
11806	schaersvoo	3101	case ROTATION_CENTER:
9306	schaersvoo	3102	/*
11806	schaersvoo	3103	@ rotationcenter x_center,y_center
		3104	@ define an rotation center in your x/y-coordinate system
		3105	@ wims will not check the validity of your input; use javascript console to debug any erors
		3106	@ if not defined a rotation will be around the first point of an object
		3107	@ to be used before command <a href="#rotate">rotate</a>
		3108	@ all other commands will use this rotation center, unless a <a href="#killrotation">killrotation</a> is given
9306	schaersvoo	3109	*/
11806	schaersvoo	3110	temp = get_string(infile,1);
		3111	string_length = snprintf(NULL,0,"[ %s ]",temp);
		3112	check_string_length(string_length);
		3113	rotation_center = my_newmem(string_length+1);
		3114	snprintf(rotation_center,string_length,"[%s]",temp);
9306	schaersvoo	3115	break;
11806	schaersvoo	3116
		3117	case SIZE:
		3118	/*
		3119	@ size width,height
		3120	@ set canvas size in pixels
		3121	@ mandatory first command (can only be preceded by keyword <a href="#popup">'popup'</a>)
		3122	@ if xrange and/or yrange is not given the range will be set to pixels :<br />xrange 0,xsize yrange 0,ysize<br />note: lower left corner is Origin (0:0) !!! this in contrast to flydraw
		3123	*/
		3124	found_size_command = 1;
		3125	/* using fabs : however "xsize == int" : so "xsize = abs( (int) get_real(infile,0))" would be the idea... */
		3126	xsize = (int)(fabs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		3127	ysize = (int)(fabs(round(get_real(infile,1))));
		3128	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		3129	xmin = 0;xmax = xsize;
		3130	ymin = 0;ymax = ysize;
		3131
		3132	/*
		3133	The sequence in which stuff is finally printed is important !!
		3134	*/
		3135	fprintf(stdout,"\n\
		3136	<script type=\"text/javascript\">\n\
		3137	/<![CDATA[/\n\
		3138	if( typeof(wims_status) === 'undefined' ){ var wims_status = \"$status\";};\
		3139	if( typeof(use_dragdrop_reply) === 'undefined' ){ var use_dragdrop_reply = false;};\
		3140	if( typeof(canvas_scripts) === 'undefined' ){ var canvas_scripts = new Array();};\
		3141	canvas_scripts.push(\"%d\");\n/]]>/\n</script>\n\
		3142	",canvas_root_id);
		3143
		3144	/* style=\"display:block;position:relative;margin-left:auto;margin-right:auto;margin-bottom:4px;\" */
		3145	if( use_tooltip != 2){
		3146	fprintf(stdout,"<!-- canvasdraw div -->\n\
		3147	<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" oncontextmenu=\"return false;\"></div>\n\
		3148	<!-- tooltip and input placeholder -->\n\
		3149	<div id=\"tooltip_placeholder_div%d\" style=\"text-align:center\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\
		3150	<!-- include actual object code via include file -->\n\
		3151	<script id=\"canvas_script%d\" type=\"text/javascript\" src=\"%s\"></script>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,getfile_cmd);
		3152	}
		3153	else
		3154	{
		3155	/*
		3156	set canvas_div invisible and do not include placeholder in main html page :
		3157	the js-include will also be in a popup window...to be shown when wims $status = done
		3158	*/
		3159	fprintf(stdout,"<!-- canvasdraw div invisible -->\n\
		3160	<div tabindex=\"0\" id=\"canvas_div%d\" style=\"display:none;position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" ></div>\n\
		3161	<div id=\"tooltip_placeholder_div%d\" style=\"display:none;position:relative;margin-left:auto;margin-right:auto;margin-bottom:4px;\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\
		3162	<!-- include actual object code via include file -->\n\
		3163	<script id=\"canvas_script%d\" type=\"text/javascript\" src=\"%s\"></script>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,getfile_cmd);
		3164	}
		3165
		3166	/* these must be global...it's all really very poor javascript :( */
		3167	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n\
		3168	\"use strict\";\n\
		3169	<!-- these variables and functions must be global -->\n\
		3170	var read_dragdrop%d;\
		3171	var read_canvas%d;\
		3172	var set_clock;\
		3173	var clear_draw_area%d;\
		3174	var update_draw_area%d;\
		3175	var draw_boxplot;\
		3176	var redraw_all%d;\
		3177	var userdraw_primitive;\n\
		3178	var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
		3179	var userdraw_x = [];var userdraw_y = [];var userdraw_radius = [];\n\
		3180	var xsize = %d;\
		3181	var ysize = %d;\
		3182	var precision = 100;\
		3183	var canvas_div = document.getElementById(\"canvas_div%d\");\
		3184	var create_canvas%d = function(canvas_type,size_x,size_y){var cnv;if(document.getElementById(\"wims_canvas%d\"+canvas_type)){ cnv = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{try{ cnv = document.createElement(\"canvas\"); }catch(e){alert(\"Your browser does not support HTML5 CANVAS:GET FIREFOX !\");return;};canvas_div.appendChild(cnv);};cnv.width = size_x;cnv.height = size_y;cnv.style.top = 0;cnv.style.left = 0;cnv.style.position = \"absolute\";cnv.id = \"wims_canvas%d\"+canvas_type;return cnv;};\
		3185	function findPosX(i){ var obj = i;var curleft = 0;if(obj.offsetParent){while(1){curleft += obj.offsetLeft;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.x){curleft += obj.x;};};return curleft;};function findPosY(i){var obj = i;var curtop = 0;if(obj.offsetParent){while(1){curtop += obj.offsetTop;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.y){curtop += obj.y;};};return curtop;};\
		3186	function x2px(x){if(use_xlogscale == 0 ){return parseFloat(xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin));}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_in = Math.log(x)/Math.log(xlogbase);return x_inxsize/(x_max - x_min) - xsizex_min/(x_max - x_min);};};\
		3187	function px2x(px){if(use_xlogscale == 0 ){return parseFloat(px(xmax - xmin)/xsize + xmin);}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_out = x_min +px(x_max - x_min)/(xsize);return Math.pow(xlogbase,x_out);};};\
		3188	function px2y(py){if(use_ylogscale == 0 ){return parseFloat(ymax - py(ymax - ymin)/ysize);}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_out = y_max +py(y_min - y_max)/(ysize);return Math.pow(ylogbase,y_out);};};\
		3189	function y2px(y){if(use_ylogscale == 0){return parseFloat(-1yysize/(ymax - ymin) + ymaxysize/(ymax - ymin));}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_in = Math.log(y)/Math.log(ylogbase);return (y_max - y_in)ysize/(y_max - y_min);};};\
		3190	function scale_x_radius(rx){return rx*xsize/(xmax - xmin);};\
		3191	function scale_y_radius(ry){return ry*ysize/(ymax - ymin);};\
		3192	function distance(x1,y1,x2,y2){return Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) );};\
		3193	function distance_to_line (r,q,x,y){var c = (y) - (-1/r)(x);var xs = r(c - q)/(rr+1);var ys = (r)(xs)+(q);return parseInt(Math.sqrt( (xs-x)(xs-x) + (ys-y)(ys-y) ));};\
		3194	function move(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = obj.x[p] + dx;obj.y[p] = obj.y[p] + dy;};return obj;};\
		3195	function slide(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = x2px(obj.xorg[p] + dx);obj.y[p] = y2px(obj.yorg[p] + dy);};return obj;};\
		3196	var isTouch = (('ontouchstart' in window) \|\| (navigator.msMaxTouchPoints > 0));\
		3197	var x_use_snap_to_grid = 0;var y_use_snap_to_grid = 0;var snap_x = 1;var snap_y = 1;\
		3198	var use_snap_to_points = 0;\
		3199	function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\
		3200	function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\n\
		3201	var xlogbase = 10;\
		3202	var ylogbase = 10;\
		3203	var use_xlogscale = 0;\
		3204	var use_ylogscale = 0;\
		3205	var x_strings = null;var x_strings_up = null;\
		3206	var y_strings = null;\
		3207	var use_pan_and_zoom = 0;\
		3208	var use_jsmath = 0;\
		3209	var xstart = 0;\
		3210	var ystart = 0;\
		3211	var unit_x=\" \";\
		3212	var unit_y=\" \";\
		3213	var external_canvas = create_canvas%d(%d,xsize,ysize);\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,EXTERNAL_IMAGE_CANVAS);
		3214	/* default add the drag code : nearly always used ...*/
		3215	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		3216
		3217	break;
		3218
		3219
		3220	case SEGMENT:
7614	schaersvoo	3221	/*
11806	schaersvoo	3222	@ segment x1,y1,x2,y2,color
		3223	@ alternative : seg
		3224	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		3225	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
7614	schaersvoo	3226	*/
11806	schaersvoo	3227	for(i=0;i<5;i++) {
7614	schaersvoo	3228	switch(i){
11806	schaersvoo	3229	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		3230	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		3231	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		3232	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		3233	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		3234	decimals = find_number_of_digits(precision);
		3235	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3236	if(onclick > 0){click_cnt++;}
		3237	/* click_cnt++; */
		3238	reset();
		3239	break;
		3240	default: break;
7614	schaersvoo	3241	}
		3242	}
		3243	break;
10953	bpr	3244
11806	schaersvoo	3245	case SEGMENTS:
9213	schaersvoo	3246	/*
11806	schaersvoo	3247	@ segments color,x1,y1,x2,y2,...,x_n,y_n
		3248	@ alternative : segs
		3249	@ draw multiple segments between points (x1:y1)--(x2:y2).....and... (x_n-1:y_n-1)--(x_n:y_n) in color 'color'
		3250	@ use command 'linewidth int' to adust size
		3251	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
9213	schaersvoo	3252	*/
11806	schaersvoo	3253	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3254	fill_color = stroke_color;
		3255	i=0;
		3256	while( ! done ){ /* get next item until EOL*/
		3257	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		3258	if(i%2 == 0 ){
		3259	double_data[i] = get_real(infile,0); /* x */
		3260	}
		3261	else
		3262	{
		3263	double_data[i] = get_real(infile,1); /* y */
		3264	}
		3265	i++;
		3266	}
		3267	decimals = find_number_of_digits(precision);
		3268	for(c = 0 ; c < i-1 ; c = c+4){
		3269	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3270	if(onclick > 0){click_cnt++;}
		3271	/* click_cnt++;*/
		3272	}
		3273	reset();
9213	schaersvoo	3274	break;
11806	schaersvoo	3275
		3276	case SETLIMITS:
9213	schaersvoo	3277	/*
11806	schaersvoo	3278	@ setlimits
		3279	@ keyword : if set, it will produce 4 inputfields for 'xmin,xmax,ymin,ymax' and an 'ok' button
		3280	@ may be used for inputfield based zooming / panning
		3281	@ may be styled using command <a href="#inputstyle">inputstyle</a>
		3282	@ use commands <a href="#xlabel">xlabel / ylabel</a> to change text from xmin to 'xlabel' etc
		3283	@ note:the input value will not be checked on validity
9213	schaersvoo	3284	*/
11806	schaersvoo	3285	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		3286	add_setlimits(js_include_file,canvas_root_id,font_size,input_style);
		3287	/* add_setlimits provides 'fprintf(js_include_file,"use_pan_and_zoom = 1;");' */
		3288	use_pan_and_zoom = TRUE;
		3289	done = TRUE;
9213	schaersvoo	3290	break;
11806	schaersvoo	3291
		3292	case SETPIXEL:
9213	schaersvoo	3293	/*
11806	schaersvoo	3294	@ setpixel x,y,color
		3295	@ A rectangular "point" with diameter 1 pixel centered at (x:y) in xrange / yrange
		3296	@ pixels can <b>not</b> be dragged or clicked
		3297	@ "pixelsize = 1" may be changed by command "pixelsize int"
9213	schaersvoo	3298	*/
11806	schaersvoo	3299	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		3300	for(i=0;i<3;i++){
		3301	switch(i){
		3302	case 0: double_data[0] = get_real(infile,0); break; /* x */
		3303	case 1: double_data[1] = get_real(infile,0); break; /* y */
		3304	case 2: stroke_color = get_color(infile,1);
		3305	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		3306	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3307	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		3308	add_to_buffer(tmp_buffer);
		3309	break;
		3310	default:break;
		3311	}
		3312	}
		3313	reset();
		3314	break;
		3315
		3316
		3317	case SLIDER:
9213	schaersvoo	3318	/*
11806	schaersvoo	3319	@ slider start_value,end_value,width px,height px,<em>type</em>,label
		3320	@ <em>type</em> may be : xy,x,y,angle
		3321	@ if a slider value display is desired, use for argument <em>type</em>:<br />xy display<br />x display<br />y display<br />angle radian<br />angle degree
		3322	@ if a unit (or something like that...) for x/y-value display is needed, use commands 'xunit' and / or 'yunit'
		3323	@ if the translation should be performed using a function, use for type: xy function,x function,y function<br />use commands sliderfunction_x and/or sliderfunction_y before the slider command to define the functions<br />example:<br />sliderfunction_x x^2<br />sliderfunction_y y^2<br />slider -5,5,100,100,xy function,Some_Text<br />...some stuff to slide<br />killslider<br />sliderfunction_x x^2-2<br />slider -15,15,100,10,x function,Some_Other_Text<br />...more stuff to slide<br />killslider<br />... etc
		3324	@ use command 'slider' before draggable/clickable objects.
		3325	@ drag and drop may be combined with rotation slider<br />for example an arrow rotated by a slider may be placed anywhere (drag&drop)<em>size 300,300<br />xrange -5,5<br />yrange -5,5<br />grid 1,1,grey<br />linewidth 3<br />drag xy<br />fillcolor orange<br />strokecolor blue<br />slider 0,2*pi,250,30,angle degrees,Rotate arrow<br />arrow 2,2,5,5,8,red</em>
		3326	@ no slider for a math function, these can be traced using command 'trace_jscurve some_function_in_x'
		3327	@ a slider will affect all draggable objects after the 'slider' command...<br />and can be used to group translate / rotate several objects...<br />until a next 'slider' or keyword 'killslider'
		3328	@ amount of sliders is not limited.
		3329	@ javascript:read_dragdrop(); will return an array with 'object_number:slider_value'
		3330	@ type=xy: will produce a 2D 'slider' [rectangle width x heigh px] in your web page
		3331	@ every draggable object may have its own slider (no limit in amount of sliders)
		3332	@ label: some slider text
		3333	@ use fillcolor for slider ball
		3334	@ use strokecolor for slider bar
		3335	@ use fontfamily / fontcolor to set used fonts
		3336	@ use opacity (only fill opacity will be used) to set transparency
		3337	@ the slider canvas will be added to the 'tooltip div' : so incompatible with command tooltip ; setlimits etc
9213	schaersvoo	3338	*/
11806	schaersvoo	3339	slider_cnt++;/* slider starts at 1 */
		3340	for(i=0; i<6 ; i++){
		3341	switch(i){
		3342	case 0: double_data[0] = get_real(infile,0);break; /* start value */
		3343	case 1: double_data[1] = get_real(infile,0);break; /* end value */
		3344	case 2: int_data[0] = (int)(get_real(infile,0));break; /* width */
		3345	case 3: int_data[1] = (int)(get_real(infile,0));break; /* height */
		3346	case 4: temp = get_string_argument(infile,0); /* type : xy,x,y,angle */
		3347	if(strstr(temp,"xy")!= 0){
		3348	slider = 4;
		3349	}
		3350	else
		3351	{
		3352	if(strstr(temp,"x") != 0){
		3353	slider = 1;
		3354	}
		3355	else
		3356	{
		3357	if(strstr(temp,"y") != 0){
		3358	slider = 2;
		3359	}
		3360	else
		3361	{
		3362	if(strstr(temp,"angle") != 0){ /* angle diplay radian */
		3363	slider = 3;
		3364	}
		3365	else
		3366	{
		3367	canvas_error("slider can be of type: xy,x,y,angle,fun_x:fun_y");
		3368	}
		3369	}
		3370	}
		3371	}
		3372	if(strstr(temp,"display")!=0){
		3373	if( slider == 4 ){ /* show x:y */
		3374	use_slider_display = 1; /* show x xy values in canvas window */
		3375	}
		3376	else
		3377	{
		3378	if( slider == 1 ){ /* show only x -values */
		3379	use_slider_display = 10;
		3380	}
		3381	else
		3382	{
		3383	use_slider_display = 11; /* show only y -values*/
		3384	}
		3385	}
		3386	}
		3387	else
		3388	{
		3389	if(strstr(temp,"degree")!= 0){
		3390	use_slider_display = 2; /* show angle values in canvas window */
		3391	}
		3392	else
		3393	{
		3394	if(strstr(temp,"radian")!=0){
		3395	use_slider_display = 3; /* show radian values in canvas window */
		3396	}
		3397	}
		3398	}
		3399	if(use_slider_display != 0 && slider_cnt == 1){ /add just once the display js-code /
		3400	add_slider_display(js_include_file,canvas_root_id,precision,font_size,font_color,stroke_opacity);
		3401	}
		3402	if(strstr(temp,"fun")!= 0){
		3403	if( use_js_math == FALSE){/* add this stuff only once...*/
		3404	add_to_js_math(js_include_file); use_js_math = TRUE;
		3405	}
		3406	fprintf(js_include_file,"var slider_function%d = {x:to_js_math('%s'),y:to_js_math('%s')};",slider_cnt,slider_function_x,slider_function_y);
		3407	slider_function_x = "x";slider_function_y = "y";/* reset the functions for next slider...*/
		3408	}
		3409	else
		3410	{
		3411	fprintf(js_include_file,"var slider_function%d = {x:'x',y:'y'};",slider_cnt);
		3412	/* we must define these, otherwise 'use stict' will cause an error */
		3413	}
		3414	break;
		3415	case 5: /* some string used for slider description */
		3416	if(slider == 4){
		3417	add_xyslider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
		3418	}
		3419	else
		3420	{
		3421	add_slider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
		3422	}
		3423	break;
		3424	}
		3425	}
9213	schaersvoo	3426	break;
11806	schaersvoo	3427	case SLIDER_X:
9213	schaersvoo	3428	/*
11806	schaersvoo	3429	@ sliderfunction_x some_function_in_x
		3430	@ default value "x"
		3431	@ the x-value of the slider object(s) will be calculated with this function.
		3432	@ default is the x-slider value itself
		3433	@ only used by command 'slider'
		3434	@ define before a slider command !
9213	schaersvoo	3435	*/
11806	schaersvoo	3436	slider_function_x = get_string(infile,1);
		3437	break;
		3438	case SLIDER_Y:
		3439	slider_function_y = get_string(infile,1);
		3440	/*
		3441	@ sliderfunction_y some_function_in_y
		3442	@ default value "y"
		3443	@ the y-value of the slider object(s) will be calculated with this function.
		3444	@ only used by command 'slider'
		3445	@ define before a slider command !
		3446	*/
		3447	break;
		3448	case SGRAPH:
		3449	/*
		3450	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		3451	@ primitive implementation of a 'broken scale' graph...
		3452	@ not very versatile: only usable in combination with userdraw <br />eg no other objects will obey this "coordinate system"<br />if you want to place an object into this coordinate system, be aware that 10% or 20% of xsize and/or ysize is 'lost'.<br />Use these "formulas" to recalculate the virtual coordinates:<br />factor=0.8 in case xstart != xmin (or ystart != ymin)<br />factor=0.9 in case xstart = xmin (or ystart = ymin)<br />px_x_point = ((factorxsize)/(xmax - xstart))(x_point - xmax)+xsize<br />x_recalculated = px(xmax - xmin)/xsize + $xmin<br />px_y_point = -1factory_pointysize/(ymax - ystart) + ymaxfactorysize/(ymax - ystart)<br />y_recalculated = ymax - py*(ymax - ymin)/ysize<br />
		3453	@ example:<br />size 400,400<br />xrange 0,10000<br />yrange 0,100<br />sgraph 9000,50,100,10,4,4,grey,blue<br />userinput_xy<br />linewidth 2<br />userdraw segments,red
		3454	*/
		3455	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
		3456	for(i = 0 ; i < 8 ;i++){
		3457	switch(i){
		3458	case 0:double_data[0] = get_real(infile,0);break;
		3459	case 1:double_data[1] = get_real(infile,0);break;
		3460	case 2:double_data[2] = get_real(infile,0);break;
		3461	case 3:double_data[3] = get_real(infile,0);break;
		3462	case 4:int_data[0] = (int)(get_real(infile,0));break;
		3463	case 5:int_data[1] = (int)(get_real(infile,0));break;
		3464	case 6:stroke_color = get_color(infile,0);break;
		3465	case 7:font_color = get_color(infile,1);
		3466	string_length = snprintf(NULL,0,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
		3467	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3468	snprintf(tmp_buffer,string_length,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
		3469	add_to_buffer(tmp_buffer);
		3470	break;
		3471	default:break;
		3472	}
		3473	}
		3474	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
9213	schaersvoo	3475	break;
11806	schaersvoo	3476
		3477	case SNAPTOFUNCTION:
9213	schaersvoo	3478	/*
11806	schaersvoo	3479	@ snaptofunction some_function_in_x,some_funtion_in_y
		3480	@ alternative : snaptofun some_function_in_x,some_funtion_in_y
		3481	@ the next object will snap to the calculated values
		3482	@ if you want only modification of y-values,just use: snaptofunction x,5*sin(1/y)
		3483	@ if you want only modification of x-values,just use: snaptofunction 5*sin(1/x),y
		3484	@ for now only one instance of 'snaptofunction' is allowed
		3485	@ use rawmath on your functions: no validity checking is done by wims !
		3486	@ example:<br />....<br />snaptofunction 5(cos(x),4sin(y)<br />linewidth 3<br />userdraw points,blue<br />....<br />
		3487	@ example : switching x and y coordinates?<br />snaptofunction y,x
9213	schaersvoo	3488	*/
11806	schaersvoo	3489	temp = get_string_argument(infile,0);
		3490	fprintf(js_include_file,"\nuse_snap_to_points = 2;");
		3491	if( use_js_math == FALSE){/* add this stuff only once...*/
		3492	add_to_js_math(js_include_file); use_js_math = TRUE;
		3493	}
		3494	fprintf(js_include_file,"var snap_fun = {x:to_js_math('%s'),y:to_js_math('%s')};function snap_to_fun(px,py){ var x = px2x(px); var y = px2y(py); return [ x2px(eval(snap_fun.x)) , y2px(eval(snap_fun.y)) ];};",temp,get_string(infile,1));
		3495	break;
		3496	case SNAPTOPOINTS:
		3497	/*
		3498	@ snaptopoints x1,y1,x2,y2,x3,y3....
		3499	@ a userdraw object will snap to these points.
		3500	@ the array size (e.g. the number of points) of command 'snaptopoints' is limited by constant MAX_INT (canvasdraw.h)
		3501	@ a draggable object (use command "drag x\|y\|xy") will snap to the clossed of these points when dragged (mouseup)
		3502	@ other options: use keyword "snaptogrid", "xsnaptogrid" or "ysnaptogrid"
		3503	*/
		3504	i = 0;
		3505	while( ! done ){ /* get next item until EOL*/
		3506	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		3507	if(i%2 == 0 ){
		3508	double_data[i] = get_real(infile,0); /* x */
		3509	}
		3510	else
		3511	{
		3512	double_data[i] = get_real(infile,1); /* y */
		3513	}
		3514	i++;
		3515	}
		3516	decimals = find_number_of_digits(precision);
		3517	fprintf(js_include_file,"\nuse_snap_to_points = 1;\nfunction find_min_diff(x,y,X,Y){var diff = 100000000;var chk;var idx = 0;for(var p = 0 ; p < %d ; p++){chk = distance(x,y,X[p],Y[p]);if( chk < diff ){ diff = chk; idx = p;};};return idx;};\nfunction snap_to_points(x,y){x = px2x(x); y = px2y(y);var points = [%s];var xpoints = points[0];var ypoints = points[1];var idx = find_min_diff(x,y,xpoints,ypoints);x = xpoints[idx];y = ypoints[idx];return [x2px(x),y2px(y)];};\n",(int) (0.5*i),double_xy2js_array(double_data,i,decimals));
		3518	break;
		3519
		3520	case SNAPTOGRID:
		3521	/*
		3522	@ snaptogrid
		3523	@ keyword (no arguments required)
		3524	@ a draggable object (use command "drag x\|y\|xy") will snap to the given grid when dragged (mouseup)
		3525	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
		3526	@ if no grid is defined ,points will snap to every integer xrange/yrange value. (eg snap_x=1,snap_y=1)
		3527	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		3528	@ if xminor / yminor is defined,(use keyword 'axis' to activate the minor steps) the drawing will snap to xminor and yminor<br />use only even dividers in x/y-minor...for example<br />snaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
		3529	*/
		3530	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;");
		3531	break;
		3532
		3533	case SQUARE:
		3534	/*
		3535	@ square x,y,side (px) ,color
		3536	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		3537	@ use command 'fsquare x,y,side,color' for a filled square
		3538	@ use command/keyword <a href='#filled'>'filled'</a> before command 'square x,y,side,color'
		3539	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		3540	*/
		3541	for(i=0;i<5;i++){
		3542	switch(i){
		3543	case 0:double_data[0] = get_real(infile,0);break; /* x1-values */
		3544	case 1:double_data[1] = get_real(infile,0);break; /* y1-values */
		3545	case 2:double_data[2] = (int) (get_real(infile,0));break; /* width in px */
		3546	case 3:
		3547	stroke_color = get_color(infile,1);/* name or hex color */
		3548	decimals = find_number_of_digits(precision);
		3549	double_data[3] = double_data[0] + (xmax - xmin)*double_data[2]/xsize;
		3550	double_data[4] = double_data[1] + -1(ymax - ymin)double_data[2]/ysize;
		3551	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[3],decimals,double_data[3],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[4],decimals,double_data[4],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3552	if(onclick > 0){click_cnt++;}
		3553	/* click_cnt++; */
		3554	reset();
		3555	break;
		3556	}
		3557	}
9213	schaersvoo	3558	break;
11806	schaersvoo	3559
		3560	case STATUS:
9213	schaersvoo	3561	/*
11806	schaersvoo	3562	@ status
		3563	@ keyword
		3564	@ alernative : nostatus
		3565	@ used to override the effects of "status=done" in wims (answer.phtml)
		3566	@ affects 'readonly' in inputfields / textarea's in canvasimage and all userdraw based commands
		3567	@ e.g.: if keyword 'status' is set, the pupil will be able to modify the canvas when the 'wims $status variable' is set to 'done'
9213	schaersvoo	3568	*/
11806	schaersvoo	3569
		3570	fprintf(js_include_file,"\nwims_status=\"waiting\";\n");
9213	schaersvoo	3571	break;
11806	schaersvoo	3572
		3573	case STRING:
9213	schaersvoo	3574	/*
11806	schaersvoo	3575	@ string color,x,y,the text string
		3576	@ may be set "onclick" or "drag xy"
		3577	@ unicode supported: string red,0,0,\\u2232
		3578	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
9213	schaersvoo	3579	*/
11806	schaersvoo	3580	for(i=0;i<5;i++){
		3581	switch(i){
		3582	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		3583	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		3584	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		3585	case 3: decimals = find_number_of_digits(precision);
		3586	temp = get_string_argument(infile,1);
		3587	decimals = find_number_of_digits(precision);
		3588	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3589	if(onclick > 0){click_cnt++;}
		3590	/* click_cnt++;*/
		3591	reset();
		3592	break;
		3593	default:break;
		3594	}
9213	schaersvoo	3595	}
		3596	break;
11806	schaersvoo	3597
		3598	case STRINGUP:
9213	schaersvoo	3599	/*
11806	schaersvoo	3600	@ stringup color,x,y,rotation_degrees,the text string
		3601	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		3602	@ unicode supported: stringup red,0,0,45,\\u2232
		3603	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		3604
9213	schaersvoo	3605	*/
11806	schaersvoo	3606	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		3607	for(i=0;i<6;i++){
		3608	switch(i){
		3609	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		3610	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		3611	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		3612	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		3613	case 4: decimals = find_number_of_digits(precision);
		3614	temp = get_string_argument(infile,1);
11811	schaersvoo	3615	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
11806	schaersvoo	3616	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11811	schaersvoo	3617	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
11806	schaersvoo	3618	add_to_buffer(tmp_buffer);
		3619	break;
		3620	default:break;
		3621	}
9213	schaersvoo	3622	}
11806	schaersvoo	3623	reset();
9213	schaersvoo	3624	break;
11767	schaersvoo	3625
11806	schaersvoo	3626	case STYLE:
11767	schaersvoo	3627	/*
11806	schaersvoo	3628	@ highlight color,opacity,linewidth
		3629	@ NOT IMPLEMENTED
		3630	@ use command "onclick" : when the object receives a userclick it will increase its linewidth
11767	schaersvoo	3631	*/
		3632	break;
11806	schaersvoo	3633
		3634
		3635	case STROKECOLOR:
9213	schaersvoo	3636	/*
11806	schaersvoo	3637	@ strokecolor colorname or #hex
		3638	@ to be used for commands that do not supply a color argument (like command 'linegraph')
9213	schaersvoo	3639	*/
11806	schaersvoo	3640	stroke_color = get_color(infile,1);
9213	schaersvoo	3641	break;
11806	schaersvoo	3642
		3643	case FLY_TEXT:
9213	schaersvoo	3644	/*
11806	schaersvoo	3645	@ text fontcolor,x,y,font,text_string
		3646	@ font may be described by keywords : giant,huge,normal,small,tiny
		3647	@ use command 'fontsize' to increase base fontsize for these keywords
		3648	@ may be set "onclick" or "drag xy"
		3649	@ backwards compatible with flydraw
		3650	@ unicode supported: text red,0,0,huge,\\u2232
		3651	@ use command 'string' combined with 'fontfamily' for a more fine grained control over html5 canvas text element
		3652	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
9213	schaersvoo	3653	*/
11806	schaersvoo	3654	for(i = 0; i < 5 ;i++){
		3655	switch(i){
		3656	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		3657	case 1: double_data[0] = get_real(infile,0);break; /* x */
		3658	case 2: double_data[1] = get_real(infile,0);break; /* y */
		3659	case 3: fly_font = get_string_argument(infile,0);
		3660	if(strcmp(fly_font,"giant") == 0){
		3661	fly_font_size = (int)(font_size + 24);
		3662	}
		3663	else
		3664	{
		3665	if(strcmp(fly_font,"huge") == 0){
		3666	fly_font_size = (int)(font_size + 14);
		3667	}
		3668	else
		3669	{
		3670	if(strcmp(fly_font,"large") == 0){
		3671	fly_font_size = (int)(font_size + 6);
		3672	}
		3673	else
		3674	{
		3675	if(strcmp(fly_font,"small") == 0){
		3676	fly_font_size = (int)(font_size - 4);
		3677	if(fly_font_size<0){fly_font_size = 8;}
		3678	}
		3679	}
		3680	}
		3681	}
		3682	break;
		3683	case 4:
		3684	temp = get_string_argument(infile,1);
		3685	decimals = find_number_of_digits(precision);
		3686	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,fly_font_size,"null",use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3687	if(onclick > 0){click_cnt++;}
		3688	/* click_cnt++;*/
		3689	reset();
		3690	break;
		3691	default:break;
		3692	}
10953	bpr	3693	}
9213	schaersvoo	3694	break;
11806	schaersvoo	3695	case TEXTAREA:
9289	schaersvoo	3696	/*
11806	schaersvoo	3697	@ textarea x,y,cols,rows,readonly,value
		3698	@ may be further controlled by <a href="#inputstyle">"inputstyle"</a>
		3699	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be cleared and set readonly<br />override this by keyword <a href="#status">'status'.</a>
		3700	@ if mathml inputfields are present and / or some userdraw is performed, these data will <b>not</b> be send as well (javascript:read_canvas();)
		3701	@ keyword 'xoffset \| centered' is not active for commande 'textarea'
9289	schaersvoo	3702	*/
11806	schaersvoo	3703	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
		3704	for(i = 0 ; i<6;i++){
9289	schaersvoo	3705	switch(i){
11806	schaersvoo	3706	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		3707	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		3708	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		3709	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		3710	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		3711	case 5: temp = get_string_argument(infile,1);
		3712	string_length = snprintf(NULL,0, "draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
		3713	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3714	snprintf(tmp_buffer,string_length,"draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
		3715	add_to_buffer(tmp_buffer);
		3716	input_cnt++;break;
9289	schaersvoo	3717	default: break;
		3718	}
		3719	}
11806	schaersvoo	3720	if(reply_format == 0 ){reply_format = 15;}
		3721	reset();
9289	schaersvoo	3722	break;
11806	schaersvoo	3723
		3724	case FLY_TEXTUP:
9289	schaersvoo	3725	/*
11806	schaersvoo	3726	@ textup fontcolor,x,y,font,text_string
		3727	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		3728	@ font may be described by keywords : giant,huge,normal,small,tiny
		3729	@ use command 'fontsize' to increase base fontsize for the keywords
		3730	@ backwards compatible with flydraw
		3731	@ unicode supported: textup red,0,0,huge,\\u2232
		3732	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
		3733	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
9289	schaersvoo	3734	*/
11806	schaersvoo	3735	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		3736	for(i = 0; i<5 ;i++){
9289	schaersvoo	3737	switch(i){
11806	schaersvoo	3738	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		3739	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		3740	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		3741	case 3: fly_font = get_string_argument(infile,0);
		3742	if(strcmp(fly_font,"giant") == 0){
		3743	fly_font_size = (int)(font_size + 24);
		3744	}
		3745	else
		3746	{
		3747	if(strcmp(fly_font,"huge") == 0){
		3748	fly_font_size = (int)(font_size + 14);
		3749	}
		3750	else
		3751	{
		3752	if(strcmp(fly_font,"large") == 0){
		3753	fly_font_size = (int)(font_size + 6);
		3754	}
		3755	else
		3756	{
		3757	if(strcmp(fly_font,"small") == 0){
		3758	fly_font_size = (int)(font_size - 4);
		3759	if(fly_font_size<0){fly_font_size = 8;}
		3760	}
		3761	}
		3762	}
		3763	}
		3764	break;
		3765	case 4:
9289	schaersvoo	3766	decimals = find_number_of_digits(precision);
11806	schaersvoo	3767	temp = get_string_argument(infile,1);
11811	schaersvoo	3768	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],fly_font_size,"null",font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
9289	schaersvoo	3769	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11811	schaersvoo	3770	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],fly_font_size,"null",font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
9289	schaersvoo	3771	add_to_buffer(tmp_buffer);
		3772	break;
11806	schaersvoo	3773	default:break;
		3774	}
		3775	}
		3776	reset();
		3777	break;
		3778
		3779
		3780	case TRACE_JSCURVE:
		3781	/*
		3782	@ trace_jscurve some_math_function
		3783	@ will use a crosshair to trace the jsmath curve
		3784	@ two inputfields will display the current x/y-values (numerical evaluation by javascript)
		3785	@ default labels 'x' and 'y'<br />use commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' to customize the labels for the input fields
		3786	@ use commands fontsize and inputstyle to format the fonts for labels and inputfields.
		3787	@ use commands linewidth,strokecolor,crosshairsize to adjust the corsshair.
		3788	@ the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x instead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
		3789	@ be aware that the formula's of the plotted function(s) can be found in the page javascript source
		3790	*/
		3791	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		3792	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		3793	if( use_js_math == FALSE){
		3794	add_to_js_math(js_include_file);
		3795	use_js_math = TRUE;
		3796	}
		3797	add_trace_js_mouse(js_include_file,TRACE_CANVAS,canvas_root_id,stroke_color,get_string(infile,1),font_size,stroke_opacity,line_width,crosshair_size,input_style);
		3798	break;
		3799
		3800
		3801	case TRANGE:
		3802	/*
		3803	@ trange tmin,tmax
		3804	@ alternative : ranget
		3805	@ default -2,2
		3806	*/
		3807	use_parametric = TRUE;
		3808	for(i = 0 ; i<2; i++){
		3809	switch(i){
		3810	case 0: tmin = get_real(infile,0);break;
		3811	case 1: tmax = get_real(infile,1);break;
9289	schaersvoo	3812	default: break;
		3813	}
		3814	}
11806	schaersvoo	3815	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
9289	schaersvoo	3816	break;
11806	schaersvoo	3817	case TRANSLATION:
		3818	/*
		3819	@ translation tx,ty
		3820	@ alternative : translate
		3821	@ will translate the next objects tx in xrange and ty in yrange
		3822	@ use command 'killtranstation' to end the command
		3823	*/
		3824	for(i = 0 ; i<2;i++){
		3825	switch(i){
		3826	case 0: double_data[0] = get_real(infile,0);break;
		3827	case 1: double_data[1] = get_real(infile,1);
		3828	use_affine = TRUE;
		3829	decimals = find_number_of_digits(precision);
		3830	string_length = snprintf(NULL,0, "[1,0,0,1,%.f,%.f] ",decimals,double_data[0]xsize/(xmax - xmin),decimals,-1double_data[1]*ysize/(ymax - ymin));
		3831	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		3832	snprintf(affine_matrix,string_length,"[1,0,0,1,%.f,%.f] ",decimals,double_data[0]xsize/(xmax - xmin),decimals,-1double_data[1]*ysize/(ymax - ymin));
		3833	break;
		3834	default: break;
		3835	}
		3836	}
		3837	break;
		3838
		3839	case TRIANGLE:
		3840	/*
		3841	@ triangle x1,y1,x2,y2,x3,y3,color
		3842	@ use ftriangle or keyword <a href='#filled'>'filled'</a> for a solid triangle
		3843	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		3844	*/
		3845	for(i=0;i<7;i++){
		3846	switch(i){
		3847	case 0: double_data[0] = get_real(infile,0);break; /* x */
		3848	case 1: double_data[1] = get_real(infile,0);break; /* y */
		3849	case 2: double_data[2] = get_real(infile,0);break; /* x */
		3850	case 3: double_data[3] = get_real(infile,0);break; /* y */
		3851	case 4: double_data[4] = get_real(infile,0);break; /* x */
		3852	case 5: double_data[5] = get_real(infile,0);break; /* y */
		3853	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		3854	decimals = find_number_of_digits(precision);
		3855	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3856	if(onclick > 0){click_cnt++;}
		3857	/* click_cnt++;*/
		3858	reset();
		3859	break;
		3860	default: break;
		3861	}
		3862	}
		3863	break;
		3864	case TRIANGLES:
		3865	/*
		3866	@ triangles color,x1,y1,x2,y2,x3,y3,...
		3867	@ use ftriangles or keyword <a href='#filled'>'filled'</a> for solid triangles
		3868	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
		3869	*/
		3870	stroke_color = get_color(infile,0);/* name or hex color */
		3871	i = 0;
		3872	decimals = find_number_of_digits(precision);
		3873	while( ! done ){
		3874	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		3875	double_data[0] = get_real(infile,0); /* x1 */
		3876	double_data[1] = get_real(infile,0); /* y1 */
		3877	double_data[2] = get_real(infile,0); /* x2 */
		3878	double_data[3] = get_real(infile,0); /* y2 */
		3879	double_data[4] = get_real(infile,0); /* x3 */
		3880	double_data[5] = get_real(infile,1); /* y3 */
		3881	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		3882	if(onclick > 0){click_cnt++;}
		3883	i = i + 6;
		3884	}
		3885	reset();
		3886	break;
		3887	case USERBOXPLOT:
		3888	/*
		3889	@ userboxplot
		3890	@ keyword, no arguments
		3891	@ use before command <a href="#boxplot">'boxplot x_or_y,box-height_or_box-width,x_or_y-position'</a>
		3892	@ if set, the student will have to calculate "min,Q1,median,Q3,max" and feed these data into the 'draw_boxplot' function
		3893	@ for example:<br />put the canvas-script into a html element with id='boxplot'and set style='display:none'<br />define a variable called 'student_boxplot' and fill it with the 5 student-data (from inputfields or something)<br />var student_boxplot = new Array(5)<br />function show_boxplot(){<br />student_boxplot[0] = min;<br />student_boxplot[1] = Q1;<br />student_boxplot[2] = median;<br />student_boxplot[3] = Q3;<br />student_boxplot[4] = max;<br />document.getElementById('boxplot').style.display = "block";<br />draw_boxplot(12345,1,2.00,5.00,[0,0,0,0,0],4,"0,0,255",0.78,"255,165,0",0.60,1,0,1,1);<br />};<br />In the canvas-script the function draw_boxplot has the following arguments:<br />draw_boxplot=function(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1)
		3894	*/
		3895	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		3896	fprintf(js_include_file,"var boxplot_source = 3;\n");
		3897	js_function[DRAW_JSBOXPLOT] = 2;
		3898	break;
		3899
		3900	case USERBOXPLOTDATA:
		3901	/*
		3902	@ userboxplotdata
		3903	@ keyword, no arguments
		3904	@ use before command <a href="#boxplot">'boxplot x_or_y,box-height_or_box-width,x_or_y-position'</a>
		3905	@ if set, the student will have to generate some statistical data. These data should be put in a named array "student_boxplot_data"
		3906	@ "min,Q1,median,Q3,max" are calculated by a js-function and the 'draw_boxplot' function will draw a boxplot.
		3907	@ see command <a href="#userboxplot">'userboxplot'</a> for calling 'draw_boxplot()'
		3908	*/
		3909	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		3910	fprintf(js_include_file,"var boxplot_source = 2;\n");
		3911	js_function[DRAW_JSBOXPLOT] = 1;
		3912
		3913	break;
		3914
7614	schaersvoo	3915	case USERDRAW:
		3916	/*
		3917	@ userdraw object_type,color
9213	schaersvoo	3918	@ only a single object_type is allowed.
9385	schaersvoo	3919	@ for multiple object user drawings use command <a href="#multidraw">'multidraw'</a>
11764	schaersvoo	3920	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>vline</li><li>vlines</li><li>hline</li><li>hlines</li><li>demiline</li><li>demilines</li><li>segment</li><li>segments</li><li>polyline \| brokenline </li><li>circle</li><li>circles</li><li>arrow</li><li>arrow2 (double arrow)</li><li>arrows</li><li>arrows2 (double arrows)</li><li>triangle</li><li>polygon</li><li>poly[3-9] (e.g poly3 ... poly7...poly9 </li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline \| path</li><li>freehandlines \| paths</li><li>clickfill : fill the clicked area with a color<br />the click may be set <a href="#snaptogrid">'snaptogrid'</a><br />may be used together with command <a href="#floodfill">'floodfill'</a><br />multiple areas may be selected <br /><b>always</b> use together with command <a href="clearbutton">'clearbutton some_text'</a> for removal of all click_colored areas<br />the function read_cancas() will return the click coordinates in the sequence of the user clicks<br />use command <a href="#canvastype">'canvastype'</a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)<br />command <a href='#multifillcolors'>multifillcolors color1,color2...color_n</a> can also be used when more than one fillcolor is wanted.<br />in that case use for example <a href='#replyformat'>replyformat 10</a> ... reply=x1:y1:color1,x2:y2:color2...<br />the colors will restart at the first color, when there are more fill-clicks than multi-fill-colors</li><li>text</li><li>arc</li><li>arcs</li><li>input<br/>place a single inputfield on 'canvas'<br />use commands 'inputstyle' for css styling: use command 'linewidth' for adjusting the input field size (default 1)</li><li>inputs<br/>place multiple inputfield : placing inputfields on top of each other is not possible</li></ul>
11088	schaersvoo	3921	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
		3922	@ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas.<br />"backspace / delete / esc" will remove typed text if the mouse is clicked non the text.<br />You will need to hit "enter" to add the text to the array "userdraw_txt"<br />Placing the cursor somewhere on a typed text and hitting "delete/backspace/esc" ,
11080	schaersvoo	3923	a confirm will popup asking to delete the selected text. This text will be removed from the "userdraw_txt()" answer array.<br />Use commands 'fontsize' and 'fontfamily' to control the text appearance
11088	schaersvoo	3924	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
		3925	@ note: all objects will be removed -after a javascript confirm box- when clicked on an object point with middle or right mouse button (e.g. event.which != 1 : all buttons but left)
7614	schaersvoo	3926	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
8224	bpr	3927	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
7614	schaersvoo	3928	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		3929	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
10953	bpr	3930	@ may be combined with keyword 'userinput_xy'
11088	schaersvoo	3931	@ note: when zooming / panning after a drawing, the drawing will NOT be zoomed / panned...this is a "design" flaw and not a feature <br />To avoid trouble do not use zooming / panning together width userdraw.!<br />use command <a href="#multidraw">multidraw</a> is this is a problem for you...
7614	schaersvoo	3932	*/
		3933	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
9213	schaersvoo	3934	canvas_error("Only one userdraw primitive may be used in command 'userdraw' use command 'multidraw' for this...");
7614	schaersvoo	3935	}
8074	schaersvoo	3936	reply_precision = precision;
7614	schaersvoo	3937	use_userdraw = TRUE;
11041	schaersvoo	3938	fprintf(js_include_file,"\n<!-- begin userdraw mouse events -->\nuserdraw_x = new Array();userdraw_y = new Array();\
		3939	userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);\
11001	schaersvoo	3940	var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;\
		3941	if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};\
		3942	if(wims_status != \"done\"){\
11006	schaersvoo	3943	canvas_div.addEventListener(\"mousedown\" ,user_draw,false);\
		3944	canvas_div.addEventListener(\"mousemove\" ,user_drag,false);\
		3945	canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();user_draw(e.changedTouches[0]);},false);\
		3946	canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();user_drag(e.changedTouches[0]);},false);\
		3947	canvas_div.addEventListener(\"touchend\" ,function(e){ e.preventDefault();user_draw(e.changedTouches[0]);},false);\
11001	schaersvoo	3948	}\n<!-- end userdraw mouse & touch events -->",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
7614	schaersvoo	3949	draw_type = get_string_argument(infile,0);
		3950	stroke_color = get_color(infile,1);
		3951	if( strcmp(draw_type,"point") == 0 ){
		3952	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	3953	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	3954	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	3955	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	3956	if(use_input_xy == 1){
7652	schaersvoo	3957	add_input_circle(js_include_file,1,1);
8815	schaersvoo	3958	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	3959	}
7614	schaersvoo	3960	add_js_points(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1);
		3961	}
		3962	else
		3963	if( strcmp(draw_type,"points") == 0 ){
		3964	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	3965	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	3966	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	3967	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	3968	if(use_input_xy == 1){
7652	schaersvoo	3969	add_input_circle(js_include_file,1,2);
8815	schaersvoo	3970	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	3971	}
7614	schaersvoo	3972	add_js_points(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1);
		3973	}
		3974	else
		3975	if( strcmp(draw_type,"segment") == 0 ){
		3976	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		3977	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	3978	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	3979	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	3980	if(use_input_xy == 1){
7652	schaersvoo	3981	add_input_segment(js_include_file,1);
8815	schaersvoo	3982	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	3983	}
7614	schaersvoo	3984	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		3985	}
		3986	else
10975	schaersvoo	3987	if( strcmp(draw_type,"polyline") == 0 \|\| strcmp(draw_type,"brokenline") == 0 ){
7663	schaersvoo	3988	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
7876	schaersvoo	3989	if(reply_format == 0){reply_format = 23;}
8071	schaersvoo	3990	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7780	schaersvoo	3991	if( use_input_xy == 1 ){
		3992	add_input_polyline(js_include_file);
8815	schaersvoo	3993	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7663	schaersvoo	3994	}
		3995	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		3996	}
		3997	else
7614	schaersvoo	3998	if( strcmp(draw_type,"segments") == 0 ){
		3999	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4000	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	4001	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	4002	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4003	if(use_input_xy == 1){
7652	schaersvoo	4004	add_input_segment(js_include_file,2);
8815	schaersvoo	4005	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4006	}
7614	schaersvoo	4007	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		4008	}
		4009	else
		4010	if( strcmp(draw_type,"circle") == 0 ){
		4011	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4012	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	4013	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
8071	schaersvoo	4014	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4015	if(use_input_xy == 1){
7652	schaersvoo	4016	add_input_circle(js_include_file,2,1);
8815	schaersvoo	4017	add_input_xyr(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4018	}
7614	schaersvoo	4019	add_js_circles(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
		4020	}
		4021	else
		4022	if( strcmp(draw_type,"circles") == 0 ){
		4023	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4024	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	4025	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		4026	add_js_circles(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4027	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4028	if(use_input_xy == 1){
7652	schaersvoo	4029	add_input_circle(js_include_file,2,2);
8815	schaersvoo	4030	add_input_xyr(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4031	}
7614	schaersvoo	4032	}
		4033	else
		4034	if(strcmp(draw_type,"crosshair") == 0 ){
		4035	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	4036	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	4037	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		4038	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	4039	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4040	if(use_input_xy == 1){
7654	schaersvoo	4041	add_input_crosshair(js_include_file,1);
8815	schaersvoo	4042	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4043	}
7614	schaersvoo	4044	}
		4045	else
		4046	if(strcmp(draw_type,"crosshairs") == 0 ){
		4047	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	4048	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	4049	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		4050	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	4051	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4052	if(use_input_xy == 1){
7654	schaersvoo	4053	add_input_crosshair(js_include_file,2);
8815	schaersvoo	4054	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4055	}
7614	schaersvoo	4056	}
		4057	else
		4058	if(strcmp(draw_type,"freehandline") == 0 ){
		4059	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4060	if(reply_format == 0){reply_format = 6;}
8224	bpr	4061	add_js_paths(js_include_file,1,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4062	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4063	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4064	}
		4065	else
		4066	if(strcmp(draw_type,"freehandlines") == 0 ){
		4067	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4068	if(reply_format == 0){reply_format = 6;}
8224	bpr	4069	add_js_paths(js_include_file,2,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4070	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4071	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4072	}
		4073	else
		4074	if(strcmp(draw_type,"path") == 0 ){
		4075	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4076	if(reply_format == 0){reply_format = 6;}
8224	bpr	4077	add_js_paths(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4078	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4079	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4080	}
		4081	else
		4082	if(strcmp(draw_type,"paths") == 0 ){
		4083	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4084	if(reply_format == 0){reply_format = 6;}
8224	bpr	4085	add_js_paths(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4086	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4087	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4088	}
		4089	else
		4090	if(strcmp(draw_type,"arrows") == 0 ){
		4091	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4092	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	4093	add_js_arrows(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	4094	if(use_input_xy == 1){
7654	schaersvoo	4095	add_input_arrow(js_include_file,2);
8815	schaersvoo	4096	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4097	}
8071	schaersvoo	4098	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4099	}
		4100	else
7874	schaersvoo	4101	if(strcmp(draw_type,"arrows2") == 0 ){
		4102	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4103	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	4104	add_js_arrows(js_include_file,2,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	4105	if(use_input_xy == 1){
7874	schaersvoo	4106	add_input_arrow(js_include_file,1);
8815	schaersvoo	4107	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7874	schaersvoo	4108	}
8071	schaersvoo	4109	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	4110	}
		4111	else
		4112	if(strcmp(draw_type,"arrow2") == 0 ){
		4113	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4114	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	4115	add_js_arrows(js_include_file,1,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	4116	if(use_input_xy == 1){
7874	schaersvoo	4117	add_input_arrow(js_include_file,1);
8815	schaersvoo	4118	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7874	schaersvoo	4119	}
8071	schaersvoo	4120	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	4121	}
		4122	else
7614	schaersvoo	4123	if(strcmp(draw_type,"arrow") == 0 ){
		4124	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4125	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	4126	add_js_arrows(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	4127	if(use_input_xy == 1){
7654	schaersvoo	4128	add_input_arrow(js_include_file,1);
8815	schaersvoo	4129	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4130	}
8071	schaersvoo	4131	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4132	}
		4133	else
		4134	if(strcmp(draw_type,"polygon") == 0){
		4135	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4136	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4137	add_js_poly(js_include_file,-1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4138	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4139	if(use_input_xy == 2){
7780	schaersvoo	4140	add_textarea_polygon(js_include_file);
8815	schaersvoo	4141	add_textarea_xy(js_include_file,canvas_root_id,input_style);
7746	schaersvoo	4142	}
7614	schaersvoo	4143	}
8224	bpr	4144	else
7614	schaersvoo	4145	if(strncmp(draw_type,"poly",4) == 0){
		4146	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		4147	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4148	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4149	add_js_poly(js_include_file,(int) (draw_type[4]-'0'),draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4150	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4151	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4152	}
8224	bpr	4153	else
7614	schaersvoo	4154	if(strcmp(draw_type,"triangle") == 0){
		4155	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4156	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4157	add_js_poly(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4158	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4159	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4160	}
8224	bpr	4161	else
7989	schaersvoo	4162	if( strcmp(draw_type,"hline") == 0 ){
		4163	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4164	if(reply_format == 0){reply_format = 11;}
		4165	add_js_hlines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4166	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4167	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4168	}
		4169	else
		4170	if( strcmp(draw_type,"hlines") == 0 ){
		4171	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4172	if(reply_format == 0){reply_format = 11;}
		4173	add_js_hlines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4174	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4175	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4176	}
		4177	else
		4178	if( strcmp(draw_type,"vline") == 0 ){
		4179	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4180	if(reply_format == 0){reply_format = 11;}
		4181	add_js_hlines(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4182	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4183	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4184	}
		4185	else
		4186	if( strcmp(draw_type,"vlines") == 0 ){
		4187	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4188	if(reply_format == 0){reply_format = 11;}
		4189	add_js_hlines(js_include_file,4,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4190	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4191	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4192	}
		4193	else
7614	schaersvoo	4194	if( strcmp(draw_type,"line") == 0 ){
		4195	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4196	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	4197	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	4198	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	4199	if( use_input_xy == 1 ){
7780	schaersvoo	4200	add_input_line(js_include_file,1);
8815	schaersvoo	4201	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7747	schaersvoo	4202	}
8071	schaersvoo	4203	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4204	}
		4205	else
		4206	if( strcmp(draw_type,"lines") == 0 ){
		4207	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4208	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	4209	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	4210	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	4211	if( use_input_xy == 1 ){
7780	schaersvoo	4212	add_input_line(js_include_file,2);
8815	schaersvoo	4213	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7746	schaersvoo	4214	}
8071	schaersvoo	4215	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4216	}
		4217	else
8362	schaersvoo	4218	if( strcmp(draw_type,"demilines") == 0 \|\| strcmp(draw_type,"halflines") == 0 ){
8244	schaersvoo	4219	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4220	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		4221	if(reply_format == 0){reply_format = 11;}
		4222	add_js_demilines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		4223	if( use_input_xy == 1 ){
		4224	add_input_demiline(js_include_file,2);
8815	schaersvoo	4225	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
8244	schaersvoo	4226	}
		4227	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4228	}
		4229	else
8362	schaersvoo	4230	if( strcmp(draw_type,"demiline") == 0 \|\| strcmp(draw_type,"halfline") == 0 ){
8244	schaersvoo	4231	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4232	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		4233	if(reply_format == 0){reply_format = 11;}
		4234	add_js_demilines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		4235	if( use_input_xy == 1 ){
		4236	add_input_demiline(js_include_file,1);
8815	schaersvoo	4237	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
8244	schaersvoo	4238	}
		4239	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4240	}
		4241	else
7614	schaersvoo	4242	if( strcmp(draw_type,"rects") == 0){
		4243	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	4244	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4245	add_js_rect(js_include_file,2,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4246	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4247	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4248	}
8224	bpr	4249	else
7614	schaersvoo	4250	if( strcmp(draw_type,"roundrects") == 0){
		4251	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	4252	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4253	add_js_rect(js_include_file,2,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4254	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4255	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4256	}
8224	bpr	4257	else
7614	schaersvoo	4258	if( strcmp(draw_type,"rect") == 0){
		4259	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	4260	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4261	add_js_rect(js_include_file,1,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4262	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4263	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4264	}
8224	bpr	4265	else
7614	schaersvoo	4266	if( strcmp(draw_type,"roundrect") == 0){
		4267	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	4268	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	4269	add_js_rect(js_include_file,1,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	4270	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4271	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4272	}
		4273	else
8083	schaersvoo	4274	if( strcmp(draw_type,"arcs") == 0){
		4275	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		4276	if(reply_format == 0){reply_format = 25;}
		4277	add_js_arc(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
		4278	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4279	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4280	}
		4281	else
8071	schaersvoo	4282	if( strcmp(draw_type,"arc") == 0){
		4283	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
11017	schaersvoo	4284	if( js_function[JS_FIND_ANGLE] != 1 ){ js_function[JS_FIND_ANGLE] = 1;}
8083	schaersvoo	4285	if(reply_format == 0){reply_format = 25;}
		4286	add_js_arc(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	4287	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4288	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4289	}
		4290	else
7614	schaersvoo	4291	if( strcmp(draw_type,"text") == 0){
7876	schaersvoo	4292	if(reply_format == 0){reply_format = 17;}
11084	schaersvoo	4293	add_js_text(js_include_file,canvas_root_id,font_size,font_family,stroke_color,stroke_opacity);
7652	schaersvoo	4294	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4295	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4296	}
8116	schaersvoo	4297	else
		4298	if( strcmp(draw_type,"inputs") == 0){
8224	bpr	4299	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	4300	if(reply_format == 0){reply_format = 27;}
11803	schaersvoo	4301	add_js_inputs(js_include_file,canvas_root_id,2,input_cnt,input_style,line_width,use_offset);
8116	schaersvoo	4302	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4303	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4304	}
		4305	else
		4306	if( strcmp(draw_type,"input") == 0){
8224	bpr	4307	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	4308	if(reply_format == 0){reply_format = 27;}
11803	schaersvoo	4309	add_js_inputs(js_include_file,canvas_root_id,1,input_cnt,input_style,line_width,use_offset);
8116	schaersvoo	4310	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4311	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4312	}
8193	schaersvoo	4313	else
11005	schaersvoo	4314	if( strcmp(draw_type,"clickfill") == 0){
		4315	decimals = find_number_of_digits(precision);
		4316	if(reply_format == 0){reply_format = 22;}
		4317	add_js_clickfill(js_include_file,canvas_root_id,stroke_color,(int) (fill_opacity/0.0039215));
		4318	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		4319	js_function[DRAW_FILLTOBORDER] = 1;
11006	schaersvoo	4320	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
11005	schaersvoo	4321	}
		4322	}
		4323	else
7614	schaersvoo	4324	{
		4325	canvas_error("unknown drawtype or typo? ");
		4326	}
		4327	reset();
		4328	break;
8386	schaersvoo	4329
		4330	case USERINPUT:
		4331	/*
		4332	@ userinput function \| textarea \| inputfield
9382	schaersvoo	4333	@ alternative : userinput_function
		4334	@ alternative : userinput_textarea
		4335	@ alternative : userinput_xy
8386	schaersvoo	4336	@ textarea and inputfield are only usable in combination with some 'userdraw draw_ type'
		4337	@ function may be used any time (e.g. without userdraw)
8815	schaersvoo	4338	@ multiple 'userinput function' commands may be used.
8386	schaersvoo	4339	@ use command "functionlabel some_string" to define the inputfield text : default value "f(x)="
		4340	@ use command 'strokecolor some_color' to adjust the plot / functionlabel color
8815	schaersvoo	4341	@ use command 'inputstyle some_css' to adjust the inputfields
		4342	@ use command 'fontsize int' to adjust the label fonts. (default 12px)
		4343	@ the user input for the function will be corrected by a simple 'rawmath' implementation...<br />an error message will be shown if javascript can not interpret the user input
8386	schaersvoo	4344	*/
		4345	temp = get_string_argument(infile,1);
		4346	if(strstr(temp,"function") != 0 \|\| strstr(temp,"curve") != 0 \|\| strstr(temp,"plot") != 0 ){
		4347	if( js_function[DRAW_JSFUNCTION] != 1 ){
		4348	add_rawmath(js_include_file);/* add simple rawmath routine to correct user input of function */
		4349	js_function[DRAW_JSFUNCTION] = 1;
		4350	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8815	schaersvoo	4351	add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	4352	input_cnt++;
		4353	}
10953	bpr	4354	else
8386	schaersvoo	4355	{
		4356	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
8815	schaersvoo	4357	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	4358	input_cnt++;
		4359	}
		4360	if( use_js_math == FALSE){/* add this stuff only once...*/
		4361	add_to_js_math(js_include_file);
		4362	use_js_math = TRUE;
		4363	}
		4364	if( use_js_plot == FALSE){
		4365	use_js_plot = TRUE;
		4366	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		4367	}
		4368	}
		4369	else
		4370	{
		4371	if(strstr(temp,"inputfield") != 0 ){
		4372	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		4373	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		4374	use_input_xy = 1;
		4375	}
		4376	else
		4377	{
		4378	if(strstr(temp,"textarea") != 0 ){
		4379	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		4380	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		4381	use_input_xy = 2;
		4382	}
		4383	else
		4384	{
		4385	canvas_error("userinput argument may be \"function,inputfield,textarea\"");
		4386	}
		4387	}
		4388	}
		4389	break;
		4390	case USERINPUT_XY:
		4391	/*
		4392	@ userinput_xy
9372	schaersvoo	4393	@ keyword (no arguments required)
8386	schaersvoo	4394	@ to be used in combination with command "userdraw object_type,color"
		4395	@ if set two (or three) input fields are added to the document<br />(one for x-values , one for y-values and in case of drawing circle one for radius-values)
		4396	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		4397	@ math input is allowed (e.g something like: 1+3,2*6,1/3,sqrt(3), sin(pi/4),10^-2,log(2)...)<br />eval function is 'protected' against code injection.
11088	schaersvoo	4398	@ can <b>not</b> be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
8386	schaersvoo	4399	@ user drawings will not zoom on zooming (or pan on panning)
8815	schaersvoo	4400	@ use command 'inputstyle some_css' to adjust the inputarea.
		4401	@ use command 'fontsize int' to adjust the text labels (if needed)
8386	schaersvoo	4402	*/
		4403	/* add simple eval check to avoid code injection with unprotected eval(string) */
		4404	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		4405	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		4406	use_input_xy = 1;
		4407	break;
		4408
		4409	case USERINPUT_FUNCTION:
		4410	/*
		4411	@ userinput_function
9372	schaersvoo	4412	@ keyword (no arguments required)
8386	schaersvoo	4413	@ if set , a inputfield will be added to the page
		4414	@ repeat keyword for more function input fields
		4415	@ the userinput value will be plotted in the canvas
10953	bpr	4416	@ this value may be read with 'read_canvas()'. <br />for do it yourself js-scripters : If this is the first inputfield in the script, its id is canvas_input0
8386	schaersvoo	4417	@ use before this command 'userinput_function',<br />commands like 'inputstyle some_css' , 'xlabel some_description' , 'opacity int,int' , 'linewidth int' , 'dashed' and 'dashtype int,int' to modify
8815	schaersvoo	4418	@ fontsize can be set using command 'fontsize int'
8386	schaersvoo	4419	@ incompatible with command 'intooltip link_text_or_image' : it uses the tooltip div for adding the inputfield
		4420	*/
		4421	if( js_function[DRAW_JSFUNCTION] != 1 ){
		4422	js_function[DRAW_JSFUNCTION] = 1;
		4423	add_rawmath(js_include_file);
		4424	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8815	schaersvoo	4425	add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	4426	input_cnt++;
		4427	}
10953	bpr	4428	else
8386	schaersvoo	4429	{
		4430	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
8815	schaersvoo	4431	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	4432	input_cnt++;
		4433	}
		4434	if( use_js_math == FALSE){/* add this stuff only once...*/
		4435	add_to_js_math(js_include_file);
		4436	use_js_math = TRUE;
		4437	}
		4438	if( use_js_plot == FALSE){
		4439	use_js_plot = TRUE;
		4440	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		4441	}
		4442	break;
		4443
		4444
		4445
11806	schaersvoo	4446	case USERTEXTAREA_XY:
7788	schaersvoo	4447	/*
11806	schaersvoo	4448	@ usertextarea_xy
		4449	@ keyword (no arguments required)
		4450	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
		4451	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
		4452	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		4453	@ user drawings will not zoom on zooming (or pan on panning)
		4454	@ use command 'inputstyle some_css' to adjust the inputarea.
		4455	@ use command 'fontsize int' to adjust the text labels (if needed)
7788	schaersvoo	4456	*/
11806	schaersvoo	4457	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		4458	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		4459	use_input_xy = 2;
7788	schaersvoo	4460	break;
8386	schaersvoo	4461
11806	schaersvoo	4462	case VLINE:
8386	schaersvoo	4463	/*
11806	schaersvoo	4464	@ vline x,y,color
		4465	@ alternative : verticalline
		4466	@ draw a vertical line through point (x:y) in color 'color'
		4467	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
8386	schaersvoo	4468	*/
11806	schaersvoo	4469	for(i=0;i<3;i++) {
7614	schaersvoo	4470	switch(i){
11806	schaersvoo	4471	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		4472	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		4473	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		4474	double_data[2] = double_data[0];
7614	schaersvoo	4475	decimals = find_number_of_digits(precision);
11806	schaersvoo	4476	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,100ymin,decimals,100ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		4477	if(onclick > 0){click_cnt++;}
		4478	/* click_cnt++; */
8379	schaersvoo	4479	reset();
7614	schaersvoo	4480	break;
		4481	}
		4482	}
		4483	break;
		4484
11806	schaersvoo	4485	case VLINES:
11802	schaersvoo	4486	/*
11806	schaersvoo	4487	@ vlines color,x1,y1,x2,y2....
		4488	@ alternative : verticallines
		4489	@ draw vertical lines through points (x1:y1),(x2:y2)... in color 'color'
		4490	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
11802	schaersvoo	4491	*/
11806	schaersvoo	4492	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		4493	fill_color = stroke_color;
		4494	i=0;
		4495	while( ! done ){ /* get next item until EOL*/
		4496	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		4497	if(i%2 == 0 ){
		4498	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	4499	}
11806	schaersvoo	4500	else
		4501	{
		4502	double_data[i] = get_real(infile,1); /* y */
7983	schaersvoo	4503	}
11806	schaersvoo	4504	i++;
7983	schaersvoo	4505	}
11806	schaersvoo	4506	decimals = find_number_of_digits(precision);
		4507	for(c = 0 ; c < i-1 ; c = c+2){
		4508	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c],decimals,ymin,decimals,ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		4509	if(onclick > 0){click_cnt++;}
		4510	/* click_cnt++; */
		4511	}
		4512	reset();
7983	schaersvoo	4513	break;
11806	schaersvoo	4514
		4515
		4516	case VIDEO:
7614	schaersvoo	4517	/*
11806	schaersvoo	4518	@ video x,y,w,h,videofile location
		4519	@ x,y : left top corner of audio element (in xrange / yrange)
		4520	@ w,y : width and height in pixels
		4521	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		4522	@ video format may be in *.mp4 (todo:other formats)
7614	schaersvoo	4523	*/
11806	schaersvoo	4524	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
7614	schaersvoo	4525	for(i=0;i<5;i++){
		4526	switch(i){
11806	schaersvoo	4527	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		4528	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		4529	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		4530	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		4531	case 4: temp = get_string(infile,1);
		4532	string_length = snprintf(NULL,0, "draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
7614	schaersvoo	4533	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11806	schaersvoo	4534	snprintf(tmp_buffer,string_length,"draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
7614	schaersvoo	4535	add_to_buffer(tmp_buffer);
		4536	break;
		4537	default:break;
		4538	}
		4539	}
		4540	reset();
		4541	break;
11806	schaersvoo	4542
7614	schaersvoo	4543	case X_AXIS_STRINGS:
		4544	/*
		4545	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9385	schaersvoo	4546	@ alternative : xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9346	schaersvoo	4547	@ use these x-axis num1...num_n values instead of default xmin...xmax
11044	schaersvoo	4548	@ no need to use keyword <a href="#axisnumbering">axisnumbering</a>
		4549	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="grid">grid</a>
11088	schaersvoo	4550	@ use command "fontcolor", "fontfamily" to adjust font <br />defaults: black,12,Ariel<br />note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
9346	schaersvoo	4551	@ a javascript error message will flag non-matching value:name pairs
9341	schaersvoo	4552	@ if the 'x-axis words' are too big and will overlap, a simple alternating offset will be applied
11044	schaersvoo	4553	@ to be used before command grid (see <a href="#grid">command grid</a>)
7614	schaersvoo	4554	@ example:<br />size 400,400<br />xrange 0,13<br />yrange -100,500<br />axis<br />xaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december<br />#'xmajor' steps should be synchronised with numbers eg. "1" in this example<br />grid 1,100,grey,1,4,6,grey
		4555	*/
		4556	temp = get_string(infile,1);
		4557	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		4558	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		4559	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		4560	use_axis_numbering = 1;
		4561	break;
9341	schaersvoo	4562	case X_AXIS_STRINGS_UP:
		4563	/*
		4564	@ xaxisup num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9385	schaersvoo	4565	@ alternative : xaxistextup num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9341	schaersvoo	4566	@ the text will be rotated 90° up
11044	schaersvoo	4567	@ no need to use keyword <a href="#axisnumbering">axisnumbering</a>
		4568	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="grid">grid</a>
9346	schaersvoo	4569	@ use these x-axis num1...num_n values instead of default xmin...xmax
11088	schaersvoo	4570	@ use command "fontcolor","fontfamily" to adjust font <br />defaults: black,12,Ariel<br />note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
9346	schaersvoo	4571	@ a javascript error message will flag non-matching value:name pairs
9341	schaersvoo	4572	@ if the 'x-axis words' are too big, they will overlap the graph<br /> (in this case the text will start from ysize upwards)
11044	schaersvoo	4573	@ to be used before command grid (see <a href="#grid">command grid</a>)
9341	schaersvoo	4574	@ example:<br />size 400,400<br />xrange 0,13<br />yrange -100,500<br />axis<br />xaxisup 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december<br />#'xmajor' steps should be synchronised with numbers eg. "1" in this example<br />grid 1,100,grey,1,4,6,grey
		4575	*/
		4576	temp = get_string(infile,1);
		4577	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		4578	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		4579	fprintf(js_include_file,"x_strings_up = 1;x_strings = [\"%s\"];\n ",temp);
		4580	use_axis_numbering = 1;
		4581	break;
8224	bpr	4582
11806	schaersvoo	4583	case XERRORBARS:
7614	schaersvoo	4584	/*
11806	schaersvoo	4585	@ xerrorbars color,E1,E2,x1,y1,x2,y2,...,x_n,y_n
		4586	@ draw multiple points with x-errorbars E1 (error value left from point) and E2 (error value right from point) at given coordinates in color 'color'
		4587	@ the errors E1 and E2 values are in xrange.
		4588	@ use command 'linewidth int' to adust size
		4589	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
7614	schaersvoo	4590	*/
11806	schaersvoo	4591	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		4592	fill_color = stroke_color;
		4593	i=0;
		4594	while( ! done ){ /* get next item until EOL*/
		4595	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		4596	if(i%2 == 0 ){
		4597	double_data[i] = get_real(infile,0); /* x */
8071	schaersvoo	4598	}
11806	schaersvoo	4599	else
		4600	{
		4601	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	4602	}
11806	schaersvoo	4603	i++;
7614	schaersvoo	4604	}
11806	schaersvoo	4605	decimals = find_number_of_digits(precision);
		4606	for(c = 2 ; c < i-1 ; c = c+2){
		4607	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,20,[%.f],[%.f],[%.2f],[%.2f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],double_data[0],double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		4608	/* click_cnt++; */
		4609	if(onclick > 0){click_cnt++;}
		4610	}
7614	schaersvoo	4611	reset();
		4612	break;
11806	schaersvoo	4613
		4614	case XRANGE:
7614	schaersvoo	4615	/*
11806	schaersvoo	4616	@ xrange xmin,xmax
		4617	@ alternative : rangex
		4618	@ if not given: 0,xsize (eg in pixels)
7614	schaersvoo	4619	*/
11806	schaersvoo	4620	for(i = 0 ; i<2; i++){
7614	schaersvoo	4621	switch(i){
11806	schaersvoo	4622	case 0: xmin = get_real(infile,0);break;
		4623	case 1: xmax = get_real(infile,1);break;
7614	schaersvoo	4624	default: break;
		4625	}
		4626	}
11806	schaersvoo	4627	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		4628	fprintf(js_include_file,"var xmin = %f;var xmax = %f;\n",xmin,xmax);
		4629	found_size_command++;
7614	schaersvoo	4630	break;
8386	schaersvoo	4631
		4632
		4633
11806	schaersvoo	4634	case XSNAPTOGRID:
7614	schaersvoo	4635	/*
11806	schaersvoo	4636	@ xsnaptogrid
		4637	@ keyword (no arguments required)
		4638	@ a draggable object (use command "drag x\|y\|xy") will snap to the given x-grid values when dragged (mouseup)
		4639	@ in case of userdraw the drawn points will snap to xmajor grid
		4640	@ if no grid is defined ,points will snap to every integer xrange value. (eg snap_x=1)
		4641	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		4642	@ if xminor is defined (use keyword 'axis' to activate xminor), the drawing will snap to xminor <br />use only even dividers in x-minor...for example<br />xsnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
7614	schaersvoo	4643	*/
11806	schaersvoo	4644	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 0;");
		4645	break;
8386	schaersvoo	4646
11806	schaersvoo	4647	case XOFFSET:
7614	schaersvoo	4648	/*
11806	schaersvoo	4649	@ xoffset \| centered
		4650	@ keyword ; to place the text centered above the text coordinates(x:y) ...
		4651	@ may be used for points or other things requirering centered labels
11811	schaersvoo	4652	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-library)
7614	schaersvoo	4653	*/
11806	schaersvoo	4654	use_offset = 1;
		4655	break;
8386	schaersvoo	4656
11806	schaersvoo	4657	case XYOFFSET:
7614	schaersvoo	4658	/*
11806	schaersvoo	4659	@ xyoffset
		4660	@ keyword ; to place the text (x:y) to (x+dx:y+dy)... dx/dy are dependent on fontsize/fontfamily
		4661	@ may be used for points or other things requirering labels
		4662	@ only active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-librariy
		4663	@ in case of inputfields the inputfield will be centered x and y on it's coordinates.<br />for example:<br />inputs 1,1,10,? <br />point 1,1,red <br /> the point will be completely invisible<br />note: keyword 'xyoffset' will also provide centering if used with <a href='#@userdraw'>input(s),color</a>
7614	schaersvoo	4664	*/
11806	schaersvoo	4665	use_offset = 2;
		4666	break;
8386	schaersvoo	4667
7996	schaersvoo	4668	case XUNIT:
		4669	/*
		4670	@ xunit some_unit_for_x-values
		4671	@ unicode allowed (no html code)
		4672	@ use together with command mousex
9372	schaersvoo	4673	@ will display the cursor x-coordinate in 'unit'
7996	schaersvoo	4674	*/
		4675	fprintf(js_include_file,"unit_x = \"%s\";",get_string(infile,1));
		4676	break;
11806	schaersvoo	4677
		4678	case XLABEL:
7996	schaersvoo	4679	/*
11806	schaersvoo	4680	@ xlabel some_string
		4681	@ will be used to create a label for the x-axis (label is in quadrant I)
		4682	@ can only be used together with command 'grid'</a><br />not depending on keywords 'axis' and 'axisnumbering'
		4683	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)<br />use command "fontsize" to adjust.<br />(command "fontfamily" is not active for this command)
7996	schaersvoo	4684	*/
11806	schaersvoo	4685	temp = get_string(infile,1);
		4686	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7996	schaersvoo	4687	break;
8071	schaersvoo	4688
11806	schaersvoo	4689	case XLOGBASE:
7991	schaersvoo	4690	/*
11806	schaersvoo	4691	@ xlogbase number
		4692	@ sets the logbase number for the x-axis
		4693	@ default value 10
		4694	@ use together with commands xlogscale / xylogscale
7991	schaersvoo	4695	*/
11806	schaersvoo	4696	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7991	schaersvoo	4697	break;
		4698
11806	schaersvoo	4699	case XLOGSCALE:
7614	schaersvoo	4700	/*
11806	schaersvoo	4701	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		4702	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		4703	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		4704	@ the linewidth is set using command 'linewidth int'
		4705	@ the opacity of major / minor grid lines is set by command <a href='#opacity'>'opacity</a>'
		4706	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
		4707	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'xlogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
		4708	@ note: the complete canvas will be used for the 'log paper'
		4709	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		4710	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		4711	@ note: when using something like 'xrange 0.0001,0.01'...combined with commands <a href='#mouse'>'mouse'</a> and/or <a href='#userdraw'>'userdraw</a>...<br /> make sure the <a href='#precision'>precision</a> is set accordingly
		4712	@ note: in case of userdraw , the use of keyword <a href='#userinput_xy'>'userinput_xy'</a> may be handy !
		4713	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	4714	*/
11806	schaersvoo	4715	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		4716	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		4717	for(i=0;i<4;i++){
7614	schaersvoo	4718	switch(i){
11806	schaersvoo	4719	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		4720	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		4721	case 2: stroke_color = get_color(infile,0); break;
		4722	case 3: fill_color = get_color(infile,1);
		4723	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
		4724	tmp_buffer = my_newmem(string_length+1);
		4725	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
		4726	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		4727	add_to_buffer(tmp_buffer);
		4728	break;
7614	schaersvoo	4729	default:break;
		4730	}
		4731	}
		4732	break;
11806	schaersvoo	4733
		4734	case XYLOGSCALE:
7614	schaersvoo	4735	/*
11806	schaersvoo	4736	@ xylogscale majorcolor,minorcolor
		4737	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		4738	@ the linewidth is set using command 'linewidth int'
		4739	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		4740	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
		4741	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
		4742	@ note: the complete canvas will be used for the 'log paper'
		4743	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		4744	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		4745	@ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
		4746	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		4747	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	4748	*/
11806	schaersvoo	4749	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		4750	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		4751	for(i=0;i<2;i++){
7614	schaersvoo	4752	switch(i){
11806	schaersvoo	4753	case 0: stroke_color = get_color(infile,0); break;
		4754	case 1: fill_color = get_color(infile,1);
		4755	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
		4756	tmp_buffer = my_newmem(string_length+1);
		4757	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
		4758	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		4759	add_to_buffer(tmp_buffer);
		4760	break;
7614	schaersvoo	4761	default:break;
		4762	}
		4763	}
		4764	break;
11806	schaersvoo	4765
		4766
		4767	case Y_AXIS_STRINGS:
7647	schaersvoo	4768	/*
11806	schaersvoo	4769	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		4770	@ alternativ : yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		4771	@ use command "fontcolor", "fontfamily" to adjust font <br />defaults: black,12,Ariel<br /> note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
		4772	@ no need to use keyword <a href="#axisnumbering">axisnumbering</a>
		4773	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="grid">grid</a>
		4774	@ use these y-axis num1...num_n values instead of default ymin...ymax
		4775	@ a javascript error message will flag non-matching value:name pairs
		4776	@ to be used before command grid (see <a href="#grid">command grid</a>)
		4777	@ example:<br />size 400,400<br />yrange 0,13<br />xrange -100,500<br />axis<br />yaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december<br />#'ymajor' steps should be synchronised with numbers eg. "1" in this example<br />grid 100,1,grey,4,1,6,grey
7647	schaersvoo	4778	*/
11806	schaersvoo	4779	temp = get_string(infile,1);
		4780	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		4781	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		4782	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		4783	use_axis_numbering = 1;
		4784	break;
		4785
		4786
		4787	case YERRORBARS:
7614	schaersvoo	4788	/*
11806	schaersvoo	4789	@ yerrorbars color,E1,E2,x1,y1,x2,y2,...,x_n,y_n
		4790	@ draw multiple points with y-errorbars E1 (error value under point) and E2 (error value above point) at given coordinates in color 'color'
		4791	@ the errors E1 and E2 values are in yrange.
		4792	@ use command 'linewidth int' to adust size
		4793	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
7614	schaersvoo	4794	*/
11806	schaersvoo	4795	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		4796	fill_color = stroke_color;
11772	schaersvoo	4797	i=0;
		4798	while( ! done ){ /* get next item until EOL*/
		4799	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		4800	if(i%2 == 0 ){
		4801	double_data[i] = get_real(infile,0); /* x */
		4802	}
		4803	else
		4804	{
		4805	double_data[i] = get_real(infile,1); /* y */
		4806	}
		4807	i++;
		4808	}
11806	schaersvoo	4809	for(c = 2 ; c < i-1 ; c = c+2){
		4810	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,19,[%.f],[%.f],[%.2f],[%.2f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],double_data[0],double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset);
		4811	/* click_cnt++; */
		4812	if(onclick > 0){click_cnt++;}
8083	schaersvoo	4813	}
11806	schaersvoo	4814	decimals = find_number_of_digits(precision);
8083	schaersvoo	4815	reset();
11806	schaersvoo	4816	break;
		4817
11811	schaersvoo	4818	case YOFFSET:
		4819	/*
		4820	@ yoffset
		4821	@ keyword, only active for commands <a href="#textup">textup</a> and <a href="#stringup">stringup</a>
		4822	@ places the text <b>under</b> the (x:y) coordinates(x:y)<br/ >eg the string 'hello' will end at char 'o' on (x:y) <br />normal behaviour : string starts at (x:y)
		4823	@ string ending on (x:y) is valid for all rotation angles
		4824	@ may be used for points or other things requirering labels in y-direction
		4825	@ other text position manipulations: see <a href="#xoffset">xoffset</a> for centering on x-coordinate or <a href="#xyoffset">xyoffset</a> label placement for points etc.
		4826	*/
		4827	use_offset = 3;
		4828	break;
		4829
11806	schaersvoo	4830	case YRANGE:
7614	schaersvoo	4831	/*
11806	schaersvoo	4832	@ yrange ymin,ymax
		4833	@ alternative : rangey
		4834	@ if not given 0,ysize (eg in pixels)
7614	schaersvoo	4835	*/
11806	schaersvoo	4836	for(i = 0 ; i<2; i++){
7614	schaersvoo	4837	switch(i){
11806	schaersvoo	4838	case 0: ymin = get_real(infile,0);break;
		4839	case 1: ymax = get_real(infile,1);break;
		4840	default: break;
7614	schaersvoo	4841	}
		4842	}
11806	schaersvoo	4843	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		4844	fprintf(js_include_file,"var ymin = %f;var ymax = %f;\n",ymin,ymax);
		4845	found_size_command++;
		4846	break;
		4847
		4848	case YSNAPTOGRID:
7614	schaersvoo	4849	/*
11806	schaersvoo	4850	@ ysnaptogrid
		4851	@ keyword (no arguments required)
		4852	@ a draggable object (use command "drag x\|y\|xy") will snap to the given y-grid values when dragged (mouseup)
		4853	@ in case of userdraw the drawn points will snap to ymajor grid
		4854	@ if no grid is defined ,points will snap to every integer yrange value. (eg snap_y=1)
		4855	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		4856	@ if yminor is defined (use keyword 'axis' to activate yminor), the drawing will snap to yminor <br />use only even dividers in y-minor...for example<br />ysnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
7614	schaersvoo	4857	*/
11806	schaersvoo	4858	fprintf(js_include_file,"\nx_use_snap_to_grid = 0;y_use_snap_to_grid = 1;");
7614	schaersvoo	4859	break;
11080	schaersvoo	4860
7614	schaersvoo	4861	case YLABEL:
		4862	/*
		4863	@ ylabel some_string
8224	bpr	4864	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
9379	schaersvoo	4865	@ can only be used together with command <a href="#grid">'grid'</a><br />not depending on keywords 'axis' and 'axisnumbering'
10953	bpr	4866	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)<br />use command "fontsize" to adjust.<br />(command "fontfamily" is not active for this command)
7614	schaersvoo	4867	*/
		4868	temp = get_string(infile,1);
7653	schaersvoo	4869	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	4870	break;
7735	schaersvoo	4871	case YLOGBASE:
		4872	/*
		4873	@ ylogbase number
		4874	@ sets the logbase number for the y-axis
		4875	@ default value 10
		4876	@ use together with commands ylogscale / xylogscale
		4877	*/
		4878	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		4879	break;
7614	schaersvoo	4880	case YLOGSCALE:
7729	schaersvoo	4881	/*
		4882	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		4883	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		4884	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		4885	@ the linewidth is set using command 'linewidth int'
		4886	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	4887	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
8224	bpr	4888	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'ylogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
11088	schaersvoo	4889	@ note: the complete canvas will be used for the 'log paper'
		4890	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		4891	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		4892	@ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
		4893	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
9383	schaersvoo	4894	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	4895	*/
		4896	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		4897	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		4898	for(i=0;i<4;i++){
		4899	switch(i){
		4900	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		4901	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		4902	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	4903	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	4904	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7729	schaersvoo	4905	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	4906	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7735	schaersvoo	4907	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	4908	add_to_buffer(tmp_buffer);
		4909	break;
		4910	default:break;
		4911	}
		4912	}
7614	schaersvoo	4913	break;
11806	schaersvoo	4914
		4915	case YUNIT:
7735	schaersvoo	4916	/*
11806	schaersvoo	4917	@ yunit some_unit_for_y-values
		4918	@ unicode allowed (no html code)
		4919	@ use together with command mousey
		4920	@ will display the cursor y-coordinate in 'unit'
7735	schaersvoo	4921	*/
11806	schaersvoo	4922	fprintf(js_include_file,"unit_y = \"%s\";",get_string(infile,1));
		4923	break;
		4924
		4925	case ZOOM:
		4926	/*
		4927	@ zoom button_color
		4928	@ introduce a very small 'controlpanel' at the lower right corner
		4929	@ giving six 15×15px 'active' rectangle areas<br />(for ×,leftarrow,rightarrow,uparrow,downarrow and a '-' and a '+' sign ) for zooming and/or panning of the image
		4930	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		4931	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
		4932	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		4933	@ note: use command 'zoom' at the end of your script code (the same is true for command 'mouse')
		4934	@ note: only objects that may be set draggable / clickable will be zoomed / panned
		4935	@ note: when an object is dragged, zooming / panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
		4936	*/
		4937	fprintf(js_include_file,"use_pan_and_zoom = 1;");
		4938	use_pan_and_zoom = TRUE;
		4939	stroke_color = get_color(infile,1);
		4940	/* we use BG_CANVAS (0) */
		4941	add_zoom_buttons(js_include_file,canvas_root_id,stroke_color,stroke_opacity);
		4942	done = TRUE;
		4943	break;
		4944
		4945	/* ready */
7614	schaersvoo	4946	default:sync_input(infile);
		4947	break;
		4948	}
8224	bpr	4949	}
7614	schaersvoo	4950	/* we are done parsing script file */
7983	schaersvoo	4951	/* check if xrange / yrange was set explicit ... or use xmin=0 xmax=xsize ymin=0 ymax=ysize : Quadrant I */
		4952	if( found_size_command == 1 ){
		4953	fprintf(js_include_file,"var xmin = 0;var xmax = %d;var ymin = 0;var ymax = %d",xsize,ysize);
		4954	}
		4955	else
		4956	{
		4957	if( found_size_command != 3 ){
8222	schaersvoo	4958	canvas_error("Please specify both xrange and yrange ...");
7983	schaersvoo	4959	}
		4960	}
8257	schaersvoo	4961
8222	schaersvoo	4962	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable/clickable shapes / objects ! */
11021	schaersvoo	4963	add_javascript_function(js_function,canvas_root_id);
7614	schaersvoo	4964	/* add read_canvas() etc functions if needed */
8257	schaersvoo	4965	if( reply_format > 0 ){ add_read_canvas(canvas_root_id,reply_format,reply_precision);}
7797	schaersvoo	4966	if( use_pan_and_zoom == TRUE ){
		4967	/* in case of zooming ... */
7729	schaersvoo	4968	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
7797	schaersvoo	4969	precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
7729	schaersvoo	4970	var ymin_start=ymin;var ymax_start=xmax;\
		4971	var zoom_x_increment=0;var zoom_y_increment=0;\
		4972	var pan_x_increment=0;var pan_y_increment=0;\
		4973	if(use_ylogscale == 0 ){\
7956	schaersvoo	4974	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (ymax - ymin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
7729	schaersvoo	4975	}else{\
		4976	zoom_x_increment = (xmax - xmin)/20;\
		4977	pan_x_increment = (xmax - xmin)/20;\
		4978	};\
9406	schaersvoo	4979	var zoom_xy=[xmin,xmax,ymin,ymax];\
7653	schaersvoo	4980	function start_canvas%d(type){\
9406	schaersvoo	4981	zoom_xy=[xmin,xmax,ymin,ymax];\
7653	schaersvoo	4982	switch(type){\
7729	schaersvoo	4983	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		4984	case 1:xmin = xmin - zoom_x_increment;ymin = ymin - zoom_y_increment;xmax = xmax + zoom_x_increment;ymax = ymax + zoom_y_increment;break;\
7653	schaersvoo	4985	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		4986	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		4987	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		4988	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
11004	schaersvoo	4989	case 6:xmin = xmin_start; xmax = xmax_start;ymin = ymin_start;ymax = ymax_start;break;\
7653	schaersvoo	4990	default:break;\
		4991	};\
		4992	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		4993	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
9406	schaersvoo	4994	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){};\
11088	schaersvoo	4995	if(typeof(redraw_all%d) === 'function' ){redraw_all%d(zoom_xy);}\
9406	schaersvoo	4996	%s ;\
7653	schaersvoo	4997	};\
7797	schaersvoo	4998	start_canvas%d(333);\
9438	schaersvoo	4999	};\
		5000	\n<!-- end wims_canvas_function -->\n\
9406	schaersvoo	5001	wims_canvas_function%d();\n",precision,canvas_root_id,canvas_root_id,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
7797	schaersvoo	5002	}
		5003	else
		5004	{
		5005	/* no zoom, just add buffer */
		5006	fprintf(js_include_file,"\n<!-- add buffer -->\n\
		5007	%s\
		5008	};\n\
		5009	<!-- end wims_canvas_function -->\n\
		5010	wims_canvas_function%d();\n",buffer,canvas_root_id);
		5011	}
7614	schaersvoo	5012	/* done writing the javascript include file */
		5013	fclose(js_include_file);
		5014
		5015	}
		5016
		5017	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
9329	schaersvoo	5018	if( use_tooltip > 0 ){
		5019	if( use_tooltip == 1 ){
		5020	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		5021	}
		5022	else
		5023	{
		5024	if( use_tooltip == 2 ){
		5025	add_js_popup(canvas_root_id,xsize,ysize,getfile_cmd);
		5026	}
		5027	}
		5028	}
7614	schaersvoo	5029	exit(EXIT_SUCCESS);
		5030	}
		5031	/* end main() */
		5032
		5033	/******************************************************************************
		5034	**
		5035	** sync_input
		5036	**
		5037	** synchronises input line - reads to end of line, leaving file pointer
		5038	** at first character of next line.
		5039	**
		5040	** Used by:
		5041	** main program - error handling.
		5042	**
		5043	******************************************************************************/
		5044	void sync_input(FILE *infile)
		5045	{
		5046	int c = 0;
		5047
7658	schaersvoo	5048	if( c == '\n' \|\| c == ';' ) return;
		5049	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	5050	if( c == EOF ) finished = 1;
7658	schaersvoo	5051	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	5052	return;
		5053	}
		5054
		5055	/******************************************************************************/
		5056
		5057	char str_replace(const char str, const char old, const char new){
		5058	/* http://creativeandcritical.net/str-replace-c/ */
		5059	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		5060	char ret, r;
		5061	const char p, q;
		5062	size_t oldlen = strlen(old);
		5063	size_t count = 0;
		5064	size_t retlen = 0;
		5065	size_t newlen = strlen(new);
		5066	if (oldlen != newlen){
		5067	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		5068	count++;
		5069	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		5070	}
8224	bpr	5071	}
7614	schaersvoo	5072	else
		5073	{
		5074	retlen = strlen(str);
		5075	}
8224	bpr	5076
7614	schaersvoo	5077	if ((ret = malloc(retlen + 1)) == NULL){
		5078	ret = NULL;
		5079	canvas_error("string argument is NULL");
		5080	}
		5081	else
		5082	{
		5083	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		5084	size_t l = q - p;
		5085	memcpy(r, p, l);
		5086	r += l;
		5087	memcpy(r, new, newlen);
		5088	r += newlen;
		5089	}
		5090	strcpy(r, p);
		5091	}
		5092	return ret;
		5093	}
		5094
		5095	/******************************************************************************/
7848	bpr	5096
7614	schaersvoo	5097	char get_color(FILE infile , int last){
		5098	int c,i = 0,is_hex = 0;
		5099	char temp[MAX_COLOR_STRING], *string;
8305	schaersvoo	5100	const char *not_allowed = "0123456789";
10891	schaersvoo	5101	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) && ( c != '\t' ) ){
7614	schaersvoo	5102	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		5103	if( c == '#' ){
		5104	is_hex = 1;
		5105	}
		5106	if( c != ' '){
8304	schaersvoo	5107	if( is_hex == 0 ){if(strchr(not_allowed,c) != 0){canvas_error("found something like a number...but is should have been a colour or #hex color number...<br />Do not use R,G,B !!! ");}}
7614	schaersvoo	5108	temp[i]=tolower(c);
		5109	i++;
		5110	}
		5111	}
10891	schaersvoo	5112	if( ( c == '\n' \|\| c == EOF \|\| c == ';' \|\| c == '\t' ) && last == 0){canvas_error("expecting more arguments in command");}
		5113	if( c == '\n' \|\| c == ';' \|\| c == '\t' ){ done = TRUE; line_number++; }
7614	schaersvoo	5114	if( c == EOF ){finished = 1;}
		5115	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		5116	temp[i]='\0';
		5117	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		5118	if( is_hex == 1 ){
		5119	char red[3], green[3], blue[3];
		5120	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		5121	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		5122	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		5123	int r = (int) strtol(red, NULL, 16);
		5124	int g = (int) strtol(green, NULL, 16);
		5125	int b = (int) strtol(blue, NULL, 16);
		5126	string = (char *)my_newmem(12);
		5127	snprintf(string,11,"%d,%d,%d",r,g,b);
		5128	return string;
		5129	}
		5130	else
		5131	{
		5132	string = (char *)my_newmem(sizeof(temp));
		5133	snprintf(string,sizeof(temp),"%s",temp);
8304	schaersvoo	5134	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
7614	schaersvoo	5135	if( strcmp( colors[i].name , string ) == 0 ){
		5136	return colors[i].rgb;
		5137	}
		5138	}
8304	schaersvoo	5139	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
7614	schaersvoo	5140	}
8304	schaersvoo	5141	return "0,0,255";
7614	schaersvoo	5142	}
		5143
		5144	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		5145	int c,i=0;
		5146	char temp[MAX_BUFFER], *string;
10891	schaersvoo	5147	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != '\t') ){
7614	schaersvoo	5148	temp[i]=c;
		5149	i++;
		5150	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		5151	}
10891	schaersvoo	5152	if( ( c == '\n' \|\| c == '\t' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
		5153	if( c == '\n' \|\| c == '\t') { done = TRUE; line_number++; }
11022	schaersvoo	5154	if( c == EOF ) {finished = 1;}
7614	schaersvoo	5155	temp[i]='\0';
11022	schaersvoo	5156	if( strlen(temp) == 0 && last != 3 ){ canvas_error("expected a word or string, but found nothing !!");}
7614	schaersvoo	5157	string=(char *)my_newmem(strlen(temp));
		5158	snprintf(string,sizeof(temp),"%s",temp);
		5159	return string;
		5160	}
		5161
		5162	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		5163	int c,i=0;
		5164	char temp[MAX_BUFFER], *string;
10891	schaersvoo	5165	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != '\t') && ( c != ',')){
7614	schaersvoo	5166	temp[i]=c;
		5167	i++;
		5168	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		5169	}
8224	bpr	5170	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
10891	schaersvoo	5171	if( c == '\n' \|\| c == '\t' ) { line_number++; }
7614	schaersvoo	5172	if( c == EOF ) {finished = 1;}
9478	schaersvoo	5173	if( finished == 1 && last == 0 ){ canvas_error("expected more arguments");}
7614	schaersvoo	5174	temp[i]='\0';
10953	bpr	5175	/*
8322	schaersvoo	5176	17.10.2014 removed (question Perrin)
		5177	may cause some unwanted effects...
7614	schaersvoo	5178	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
8322	schaersvoo	5179	*/
7614	schaersvoo	5180	string=(char *)my_newmem(sizeof(temp));
		5181	snprintf(string,sizeof(temp),"%s",temp);
		5182	done = TRUE;
		5183	return string;
		5184	}
		5185
		5186	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		5187	int c,i=0,found_calc = 0;
		5188	double y;
		5189	char tmp[MAX_INT];
10953	bpr	5190	/*
		5191	these things are 'allowed functions' : *,^,+,-,/,(,),e,arc,cos,tan,pi,log,ln,sqrt,abs
8383	schaersvoo	5192	but there should be a better way to avoid segfaults !
8348	schaersvoo	5193	*/
		5194	const char allowed = "earcostanpilogqb+-/^()";/* assuming these are allowed stuff in a 'number'*/
		5195	const char not_allowed = "#dfhjkmuvwxyz{}[]%&~!$";/ avoid segmentation faults in a "atof()" and "wims eval" */
10891	schaersvoo	5196	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && (c != '\t') && ( c != ';')){
7614	schaersvoo	5197	if( c != ' ' ){
8224	bpr	5198	if( i == 0 && c == '+' ){
7614	schaersvoo	5199	continue;
8224	bpr	5200	}
7614	schaersvoo	5201	else
		5202	{
8304	schaersvoo	5203	c = tolower(c);
		5204	if( strchr(not_allowed,c) != 0 ){canvas_error("found a character not associated with a number...");}
		5205	if( strchr(allowed,c) != 0 ){found_calc = 1;}/* hand the string over to wims eval() */
7614	schaersvoo	5206	tmp[i] = c;
		5207	i++;
		5208	}
		5209	}
		5210	if( i > MAX_INT - 1){canvas_error("number too large");}
		5211	}
10891	schaersvoo	5212	if( ( c == '\n' \|\| c == EOF \|\| c == ';' \|\| c == '\t' ) && last == 0){canvas_error("expecting more arguments in command");}
		5213	if( c == '\n' \|\| c == ';' \|\| c == '\t' ){ done = TRUE; line_number++; }
7614	schaersvoo	5214	if( c == EOF ){done = TRUE ; finished = 1;}
		5215	tmp[i]='\0';
		5216	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
8304	schaersvoo	5217	if( found_calc == 1 ){ /* use wims eval to calculate 2pi/3 /
7848	bpr	5218	void *f = eval_create(tmp);
7614	schaersvoo	5219	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
7848	bpr	5220	y = eval_x(f, 1);
7614	schaersvoo	5221	/* if function is bogus; y = 1 : so no core dumps */
7848	bpr	5222	eval_destroy(f);
7614	schaersvoo	5223	}
		5224	else
		5225	{
		5226	y = atof(tmp);
		5227	}
		5228	return y;
		5229	}
8304	schaersvoo	5230
		5231
7614	schaersvoo	5232	void canvas_error(char *msg){
8383	schaersvoo	5233	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number,msg);
7614	schaersvoo	5234	finished = 1;
		5235	exit(EXIT_SUCCESS);
		5236	}
		5237
		5238
		5239	/* convert x/y coordinates to pixel */
		5240	int x2px(double x){
		5241	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		5242	}
		5243
		5244	int y2px(double y){
		5245	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		5246	}
		5247
		5248	double px2x(int x){
		5249	return (x*(xmax - xmin)/xsize + xmin);
		5250	}
		5251	double px2y(int y){
		5252	return (y*(ymax - ymin)/ysize + ymin);
		5253	}
		5254
		5255	void add_to_buffer(char *tmp){
		5256	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		5257	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		5258	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		5259	if( space_left > strlen(tmp)){
		5260	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		5261	}
		5262	else
		5263	{
		5264	canvas_error("buffer is too big\n");
		5265	}
		5266	tmp = NULL;free(tmp);
		5267	return;
		5268	}
		5269
		5270	void reset(){
		5271	if(use_filled == TRUE){use_filled = FALSE;}
		5272	if(use_dashed == TRUE){use_dashed = FALSE;}
		5273	if(use_rotate == TRUE){use_rotate = FALSE;}
8379	schaersvoo	5274	onclick = 0;
7614	schaersvoo	5275	}
		5276
		5277
		5278
		5279	/* What reply format in read_canvas();
		5280
		5281	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		5282	1 = x1,x2,x3,x4....x_n
		5283	y1,y2,y3,y4....y_n
		5284
		5285	x/y in pixels
		5286
		5287	2 = x1,x2,x3,x4....x_n
		5288	y1,y2,y3,y4....y_n
		5289	x/y in xrange / yrange coordinate system
		5290
		5291	3 = x1,x2,x3,x4....x_n
		5292	y1,y2,y3,y4....y_n
		5293	r1,r2,r3,r4....r_n
		5294
8224	bpr	5295	x/y in pixels
7614	schaersvoo	5296	r in pixels
		5297
		5298	4 = x1,x2,x3,x4....x_n
		5299	y1,y2,y3,y4....y_n
		5300	r1,r2,r3,r4....r_n
		5301
		5302	x/y in xrange / yrange coordinate system
		5303	r in pixels
		5304
		5305	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		5306	Ay1,Ay2,Ay3,Ay4....Ay_n
		5307	Bx1,Bx2,Bx3,Bx4....Bx_n
		5308	By1,By2,By3,By4....By_n
		5309	Cx1,Cx2,Cx3,Cx4....Cx_n
		5310	Cy1,Cy2,Cy3,Cy4....Cy_n
		5311	....
		5312	Zx1,Zx2,Zx3,Zx4....Zx_n
		5313	Zy1,Zy2,Zy3,Zy4....Zy_n
8224	bpr	5314
7614	schaersvoo	5315	x/y in pixels
		5316
		5317	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		5318	Ay1,Ay2,Ay3,Ay4....Ay_n
		5319	Bx1,Bx2,Bx3,Bx4....Bx_n
		5320	By1,By2,By3,By4....By_n
		5321	Cx1,Cx2,Cx3,Cx4....Cx_n
		5322	Cy1,Cy2,Cy3,Cy4....Cy_n
		5323	....
		5324	Zx1,Zx2,Zx3,Zx4....Zx_n
		5325	Zy1,Zy2,Zy3,Zy4....Zy_n
		5326
		5327	x/y in xrange / yrange coordinate system
8224	bpr	5328
7614	schaersvoo	5329	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	5330
7614	schaersvoo	5331	x/y in pixels
		5332
		5333	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	5334
7614	schaersvoo	5335	x/y in xrange / yrange coordinate system
		5336
8224	bpr	5337	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	5338
		5339	x/y in pixels
		5340
8224	bpr	5341	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	5342
		5343	x/y in xrange / yrange coordinate system
		5344
		5345	11 = Ax1,Ay1,Ax2,Ay2
		5346	Bx1,By1,Bx2,By2
		5347	Cx1,Cy1,Cx2,Cy2
		5348	Dx1,Dy1,Dx2,Dy2
		5349	......
		5350	Zx1,Zy1,Zx2,Zy2
8224	bpr	5351
7614	schaersvoo	5352	x/y in xrange / yrange coordinate system
		5353
		5354	12 = Ax1,Ay1,Ax2,Ay2
		5355	Bx1,By1,Bx2,By2
		5356	Cx1,Cy1,Cx2,Cy2
		5357	Dx1,Dy1,Dx2,Dy2
		5358	......
		5359	Zx1,Zy1,Zx2,Zy2
8224	bpr	5360
7614	schaersvoo	5361	x/y in pixels
		5362
		5363	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		5364
		5365	x/y in xrange / yrange coordinate system
		5366	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		5367	x/y in pixels
		5368	15 = reply from inputfields,textareas
		5369	reply1,reply2,reply3,...,reply_n
7984	schaersvoo	5370	only fields set write (a.g. will not read 'readonly' inputfield values'
7614	schaersvoo	5371
		5372	16 = read mathml inputfields only
		5373
11080	schaersvoo	5374	17 = read userdraw text only (x1,y1,text1\nx2,y2,text2..\n.x_n,y_n,text_n
7614	schaersvoo	5375	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		5376
		5377	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		5378	19 = return clicked object number (analogue to shape-library onclick)
		5379	20 = return x/y-data in x-range/y-range of all 'draggable' images
		5380	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		5381	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		5382	x/y in xrange / yrange coordinate system
8224	bpr	5383	23 = answertype for a polyline : remove multiple occurences due to reclick on a point to create next polyline segment
7984	schaersvoo	5384	24 = read all inputfield values: even those set 'readonly'
8224	bpr	5385	25 = return all userdrawn arcs in degrees:
		5386	26 = return all userdrawn arcs in radians:
11080	schaersvoo	5387	27 = return (only) userdraw inputfields array: x1,y1,text1 \n x2,y2,text2...
8322	schaersvoo	5388	28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n
10953	bpr	5389	x/y/r in xrange / yrange coordinate system: may be used to reinput into command
8322	schaersvoo	5390	'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'
		5391	will not return anything else (e.g. no inputfields , text etc)
10953	bpr	5392	29 = mulidraw read :
		5393
7614	schaersvoo	5394	*/
		5395
		5396
8257	schaersvoo	5397	void add_read_canvas(int canvas_root_id,int type_reply,int reply_precision){
7614	schaersvoo	5398	/* just 1 reply type allowed */
8074	schaersvoo	5399	fprintf(js_include_file,"\
		5400	\n<!-- begin set_reply_precision() -->\n\
		5401	function set_reply_precision(){\
		5402	var len = userdraw_x.length;\
		5403	var prec = %d;\
		5404	for(var p = 0 ; p < len ; p++ ){\
		5405	userdraw_x[p] = (Math.round(prec*userdraw_x[p]))/prec;\
		5406	userdraw_y[p] = (Math.round(prec*userdraw_y[p]))/prec;\
		5407	};\
		5408	len = userdraw_radius.length;\
		5409	if( len > 0 ){\
		5410	for(var p = 0 ; p < len ; p++ ){\
		5411	userdraw_radius[p] = (Math.round(prec*userdraw_radius[p]))/prec;\
		5412	};\
		5413	};\
		5414	};",reply_precision);
7963	schaersvoo	5415
7614	schaersvoo	5416	switch(type_reply){
8224	bpr	5417	/*
7614	schaersvoo	5418	answers may have:
		5419	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		5420	*/
		5421	case 1: fprintf(js_include_file,"\
8257	schaersvoo	5422	\n<!-- begin function 1 read_canvas%d() -->\n\
		5423	read_canvas%d = function(){\
7614	schaersvoo	5424	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	5425	set_reply_precision();\
7614	schaersvoo	5426	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5427	var p = 0;var input_reply = new Array();\
		5428	if( document.getElementById(\"canvas_input0\")){\
		5429	var t = 0;\
		5430	while(document.getElementById(\"canvas_input\"+t)){\
		5431	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5432	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5433	p++;\
		5434	};\
		5435	t++;\
		5436	};\
		5437	};\
11088	schaersvoo	5438	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5439	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		5440	}\
		5441	else\
		5442	{\
		5443	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		5444	}\
		5445	}\
		5446	else\
		5447	{\
11088	schaersvoo	5448	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5449	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		5450	}\
		5451	else\
		5452	{\
		5453	return userdraw_x+\"\\n\"+userdraw_y;\
		5454	}\
		5455	};\
8108	schaersvoo	5456	};\n\
8257	schaersvoo	5457	<!-- end function 1 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5458	break;
		5459	case 2: fprintf(js_include_file,"\
8257	schaersvoo	5460	\n<!-- begin function 2 read_canvas%d() -->\n\
		5461	read_canvas%d = function(){\
7614	schaersvoo	5462	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	5463	set_reply_precision();\
7614	schaersvoo	5464	var reply_x = new Array();var reply_y = new Array();var p = 0;\
8074	schaersvoo	5465	var prec = %d;\
7614	schaersvoo	5466	while(userdraw_x[p]){\
8074	schaersvoo	5467	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		5468	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	5469	p++;\
		5470	};\
11806	schaersvoo	5471	if(p == 0){return;};\
7614	schaersvoo	5472	if( document.getElementById(\"canvas_input0\")){\
		5473	var p = 0;var input_reply = new Array();\
		5474	if( document.getElementById(\"canvas_input0\")){\
		5475	var t = 0;\
		5476	while(document.getElementById(\"canvas_input\"+t)){\
		5477	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5478	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5479	p++;\
		5480	};\
		5481	t++;\
		5482	};\
		5483	};\
11088	schaersvoo	5484	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5485	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5486	}\
		5487	else\
		5488	{\
		5489	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		5490	}\
		5491	}\
		5492	else\
		5493	{\
11088	schaersvoo	5494	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5495	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		5496	}\
		5497	else\
		5498	{\
		5499	return reply_x+\"\\n\"+reply_y;\
		5500	};\
		5501	};\
8108	schaersvoo	5502	};\n\
8257	schaersvoo	5503	<!-- end function 2 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5504	break;
		5505	case 3: fprintf(js_include_file,"\
8257	schaersvoo	5506	\n<!-- begin function 3 read_canvas%d() -->\n\
		5507	read_canvas%d = function(){\
7614	schaersvoo	5508	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	5509	set_reply_precision();\
7614	schaersvoo	5510	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5511	var p = 0;var input_reply = new Array();\
		5512	if( document.getElementById(\"canvas_input0\")){\
		5513	var t = 0;\
		5514	while(document.getElementById(\"canvas_input\"+t)){\
		5515	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5516	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5517	p++;\
		5518	};\
		5519	t++;\
		5520	};\
		5521	};\
11088	schaersvoo	5522	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5523	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5524	}\
		5525	else\
		5526	{\
		5527	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		5528	}\
		5529	}\
		5530	else\
		5531	{\
11088	schaersvoo	5532	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5533	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		5534	}\
		5535	else\
		5536	{\
		5537	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		5538	}\
		5539	}\
8108	schaersvoo	5540	};\n\
8257	schaersvoo	5541	<!-- end function 3 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5542	break;
		5543	case 4: fprintf(js_include_file,"\
8257	schaersvoo	5544	\n<!-- begin function 4 read_canvas%d() -->\n\
		5545	read_canvas%d = function(){\
8074	schaersvoo	5546	var prec = %d;\
7614	schaersvoo	5547	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		5548	while(userdraw_x[p]){\
8074	schaersvoo	5549	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		5550	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;;\
7614	schaersvoo	5551	p++;\
		5552	};\
11806	schaersvoo	5553	if(p == 0){return;};\
7614	schaersvoo	5554	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5555	var p = 0;var input_reply = new Array();\
		5556	if( document.getElementById(\"canvas_input0\")){\
		5557	var t = 0;\
		5558	while(document.getElementById(\"canvas_input\"+t)){\
		5559	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5560	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5561	p++;\
		5562	};\
		5563	t++;\
		5564	};\
		5565	};\
11088	schaersvoo	5566	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5567	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5568	}\
		5569	else\
		5570	{\
		5571	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		5572	}\
		5573	}\
		5574	else\
		5575	{\
11088	schaersvoo	5576	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5577	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		5578	}\
		5579	else\
		5580	{\
		5581	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		5582	}\
		5583	};\
8108	schaersvoo	5584	};\n\
8257	schaersvoo	5585	<!-- end function 4 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5586	break;
8224	bpr	5587	/*
		5588	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		5589	used for userdraw multiple paths
7614	schaersvoo	5590	*/
		5591	case 5: fprintf(js_include_file,"\
8257	schaersvoo	5592	\n<!-- begin function 5 read_canvas%d() -->\n\
		5593	read_canvas%d = function(){\
8074	schaersvoo	5594	set_reply_precision();\
7614	schaersvoo	5595	var p = 0;\
		5596	var reply = \"\";\
		5597	for(p = 0; p < userdraw_x.length;p++){\
		5598	if(userdraw_x[p] != null ){\
		5599	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		5600	};\
		5601	};\
11806	schaersvoo	5602	if(p == 0){return;};\
7614	schaersvoo	5603	userdraw_x = [];userdraw_y = [];\
		5604	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5605	var p = 0;var input_reply = new Array();\
		5606	if( document.getElementById(\"canvas_input0\")){\
		5607	var t = 0;\
		5608	while(document.getElementById(\"canvas_input\"+t)){\
		5609	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5610	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5611	p++;\
		5612	};\
		5613	t++;\
		5614	};\
		5615	};\
11088	schaersvoo	5616	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5617	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5618	}\
		5619	else\
		5620	{\
		5621	return reply +\"\\n\"+input_reply;\
		5622	}\
		5623	}\
		5624	else\
		5625	{\
11088	schaersvoo	5626	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5627	return reply+\"\\n\"+userdraw_text;\
		5628	}\
		5629	else\
		5630	{\
		5631	return reply;\
		5632	}\
		5633	};\
8108	schaersvoo	5634	};\n\
8257	schaersvoo	5635	<!-- end function 5 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5636	break;
8224	bpr	5637	/*
		5638	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		5639	used for userdraw multiple paths
7614	schaersvoo	5640	*/
		5641	case 6: fprintf(js_include_file,"\
8257	schaersvoo	5642	\n<!-- begin function 6 read_canvas%d() -->\n\
		5643	read_canvas%d = function(){\
7614	schaersvoo	5644	var p = 0;\
		5645	var reply = \"\";\
		5646	var tmp_x = new Array();\
		5647	var tmp_y = new Array();\
8074	schaersvoo	5648	var prec = %d;\
7614	schaersvoo	5649	for(p = 0 ; p < userdraw_x.length; p++){\
		5650	tmp_x = userdraw_x[p];\
		5651	tmp_y = userdraw_y[p];\
		5652	if(tmp_x != null){\
		5653	for(var i = 0 ; i < tmp_x.length ; i++){\
8074	schaersvoo	5654	tmp_x[i] = (Math.round(prec*(px2x(tmp_x[i]))))/prec;\
		5655	tmp_y[i] = (Math.round(prec*(px2y(tmp_y[i]))))/prec;\
7614	schaersvoo	5656	};\
		5657	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		5658	};\
		5659	};\
11806	schaersvoo	5660	if(p == 0){return;};\
7614	schaersvoo	5661	userdraw_x = [];userdraw_y = [];\
		5662	if( document.getElementById(\"canvas_input0\") ){\
		5663	var p = 0;var input_reply = new Array();\
		5664	if( document.getElementById(\"canvas_input0\")){\
		5665	var t = 0;\
		5666	while(document.getElementById(\"canvas_input\"+t)){\
		5667	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5668	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5669	p++;\
		5670	};\
		5671	t++;\
		5672	};\
		5673	};\
11088	schaersvoo	5674	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5675	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5676	}\
		5677	else\
		5678	{\
		5679	return reply +\"\\n\"+input_reply;\
		5680	}\
		5681	}\
		5682	else\
		5683	{\
11088	schaersvoo	5684	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5685	return reply +\"\\n\"+userdraw_text;\
		5686	}\
		5687	else\
		5688	{\
		5689	return reply;\
		5690	}\
		5691	};\
8108	schaersvoo	5692	};\n\
8257	schaersvoo	5693	<!-- end function 6 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5694	break;
		5695	case 7: fprintf(js_include_file,"\
8257	schaersvoo	5696	\n<!-- begin function 7 read_canvas%d() -->\n\
		5697	read_canvas%d = function(){\
8074	schaersvoo	5698	set_reply_precision();\
7614	schaersvoo	5699	var reply = new Array();\
		5700	var p = 0;\
		5701	while(userdraw_x[p]){\
		5702	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		5703	p++;\
		5704	};\
11806	schaersvoo	5705	if(p == 0){return;};\
7614	schaersvoo	5706	if( document.getElementById(\"canvas_input0\") ){\
		5707	var p = 0;var input_reply = new Array();\
		5708	if( document.getElementById(\"canvas_input0\")){\
		5709	var t = 0;\
		5710	while(document.getElementById(\"canvas_input\"+t)){\
		5711	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5712	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5713	p++;\
		5714	};\
		5715	t++;\
		5716	};\
		5717	};\
11088	schaersvoo	5718	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5719	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5720	}\
		5721	else\
		5722	{\
		5723	return reply+\"\\n\"+input_reply;\
		5724	}\
7862	schaersvoo	5725	}\
7614	schaersvoo	5726	else\
		5727	{\
11088	schaersvoo	5728	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5729	return reply+\"\\n\"+userdraw_text;\
		5730	}\
		5731	else\
		5732	{\
		5733	return reply;\
		5734	}\
		5735	};\
8108	schaersvoo	5736	};\n\
8257	schaersvoo	5737	<!-- end function 7 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5738	break;
		5739	case 8: fprintf(js_include_file,"\
8257	schaersvoo	5740	\n<!-- begin function 8 read_canvas%d() -->\n\
		5741	read_canvas%d = function(){\
7614	schaersvoo	5742	var reply = new Array();\
		5743	var p = 0;\
8074	schaersvoo	5744	var prec = %d;\
7614	schaersvoo	5745	while(userdraw_x[p]){\
8074	schaersvoo	5746	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	5747	p++;\
		5748	};\
11806	schaersvoo	5749	if(p == 0){return;};\
7614	schaersvoo	5750	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5751	var p = 0;var input_reply = new Array();\
		5752	if( document.getElementById(\"canvas_input0\")){\
		5753	var t = 0;\
		5754	while(document.getElementById(\"canvas_input\"+t)){\
		5755	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5756	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5757	p++;\
		5758	};\
		5759	t++;\
		5760	};\
		5761	};\
11088	schaersvoo	5762	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5763	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5764	}\
		5765	else\
		5766	{\
		5767	return reply +\"\\n\"+input_reply;\
		5768	}\
		5769	}\
		5770	else\
		5771	{\
11088	schaersvoo	5772	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5773	return reply +\"\\n\"+userdraw_text;\
		5774	}\
		5775	else\
		5776	{\
		5777	return reply;\
		5778	}\
		5779	};\
8108	schaersvoo	5780	};\n\
8257	schaersvoo	5781	<!-- end function 8 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5782	break;
		5783	case 9: fprintf(js_include_file,"\
8257	schaersvoo	5784	\n<!-- begin function 9 read_canvas%d() -->\n\
		5785	read_canvas%d = function(){\
8074	schaersvoo	5786	set_reply_precision();\
7614	schaersvoo	5787	var reply = new Array();\
		5788	var p = 0;\
		5789	while(userdraw_x[p]){\
		5790	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		5791	p++;\
		5792	};\
11806	schaersvoo	5793	if(p == 0){return;};\
7614	schaersvoo	5794	if( document.getElementById(\"canvas_input0\") ){\
		5795	var p = 0;var input_reply = new Array();\
		5796	if( document.getElementById(\"canvas_input0\")){\
		5797	var t = 0;\
		5798	while(document.getElementById(\"canvas_input\"+t)){\
		5799	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5800	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5801	p++;\
		5802	};\
		5803	t++;\
		5804	};\
		5805	};\
11088	schaersvoo	5806	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5807	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5808	}\
		5809	else\
		5810	{\
		5811	return reply +\"\\n\"+input_reply;\
		5812	}\
		5813	}\
		5814	else\
		5815	{\
11088	schaersvoo	5816	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5817	return reply +\"\\n\"+userdraw_text;\
		5818	}\
		5819	else\
		5820	{\
		5821	return reply;\
		5822	}\
		5823	};\
8108	schaersvoo	5824	};\n\
8257	schaersvoo	5825	<!-- end function 9 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5826	break;
		5827	case 10: fprintf(js_include_file,"\
8257	schaersvoo	5828	\n<!-- begin function 10 read_canvas%d() -->\n\
		5829	read_canvas%d = function(){\
7614	schaersvoo	5830	var reply = new Array();\
		5831	var p = 0;\
8074	schaersvoo	5832	var prec = %d;\
7614	schaersvoo	5833	while(userdraw_x[p]){\
8074	schaersvoo	5834	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec*userdraw_radius[p]))/prec;\
7614	schaersvoo	5835	p++;\
		5836	};\
11806	schaersvoo	5837	if(p == 0){return;};\
7614	schaersvoo	5838	if( document.getElementById(\"canvas_input0\") ){\
		5839	var p = 0;var input_reply = new Array();\
		5840	if( document.getElementById(\"canvas_input0\")){\
		5841	var t = 0;\
		5842	while(document.getElementById(\"canvas_input\"+t)){\
		5843	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5844	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5845	p++;\
		5846	};\
		5847	t++;\
		5848	};\
		5849	};\
11088	schaersvoo	5850	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5851	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5852	}\
		5853	else\
		5854	{\
		5855	return reply +\"\\n\"+input_reply;\
		5856	}\
		5857	}\
		5858	else\
		5859	{\
11088	schaersvoo	5860	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5861	return reply +\"\\n\"+userdraw_text;\
		5862	}\
		5863	else\
		5864	{\
		5865	return reply;\
		5866	}\
		5867	};\
8108	schaersvoo	5868	};\n\
8257	schaersvoo	5869	<!-- end function 10 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5870	break;
		5871	case 11: fprintf(js_include_file,"\
8257	schaersvoo	5872	\n<!-- begin function 11 read_canvas%d() -->\n\
		5873	read_canvas%d = function(){\
7614	schaersvoo	5874	var reply = \"\";\
		5875	var p = 0;\
8074	schaersvoo	5876	var prec = %d;\
7614	schaersvoo	5877	while(userdraw_x[p]){\
8074	schaersvoo	5878	reply = reply + (Math.round(prec(px2x(userdraw_x[p]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\",\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec +\"\\n\" ;\
7614	schaersvoo	5879	p = p+2;\
		5880	};\
11806	schaersvoo	5881	if(p == 0){return;};\
7614	schaersvoo	5882	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		5883	var p = 0;var input_reply = new Array();\
		5884	if( document.getElementById(\"canvas_input0\")){\
		5885	var t = 0;\
		5886	while(document.getElementById(\"canvas_input\"+t)){\
		5887	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5888	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5889	p++;\
		5890	};\
		5891	t++;\
		5892	};\
		5893	};\
11088	schaersvoo	5894	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5895	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5896	}\
		5897	else\
		5898	{\
		5899	return reply +\"\\n\"+input_reply;\
		5900	}\
		5901	}\
		5902	else\
		5903	{\
11088	schaersvoo	5904	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5905	return reply +\"\\n\"+userdraw_text;\
		5906	}\
		5907	else\
		5908	{\
		5909	return reply;\
		5910	}\
		5911	};\
8108	schaersvoo	5912	};\n\
8257	schaersvoo	5913	<!-- end function 11 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	5914	break;
		5915	case 12: fprintf(js_include_file,"\
8257	schaersvoo	5916	\n<!-- begin function 12 read_canvas%d() -->\n\
		5917	read_canvas%d = function(){\
8074	schaersvoo	5918	set_reply_precision();\
7614	schaersvoo	5919	var reply = \"\";\
		5920	var p = 0;\
		5921	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		5922	if(userdraw_x[p] != null){\
		5923	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		5924	};\
		5925	};\
11806	schaersvoo	5926	if(p == 0){return;};\
7614	schaersvoo	5927	if( document.getElementById(\"canvas_input0\") ){\
		5928	var p = 0;var input_reply = new Array();\
		5929	if( document.getElementById(\"canvas_input0\")){\
		5930	var t = 0;\
		5931	while(document.getElementById(\"canvas_input\"+t)){\
		5932	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5933	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5934	p++;\
		5935	};\
		5936	t++;\
		5937	};\
		5938	};\
11088	schaersvoo	5939	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5940	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5941	}\
		5942	else\
		5943	{\
		5944	return reply +\"\\n\"+input_reply;\
		5945	}\
		5946	}\
		5947	else\
		5948	{\
11088	schaersvoo	5949	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5950	return reply +\"\\n\"+userdraw_text\
		5951	}\
		5952	else\
		5953	{\
		5954	return reply;\
		5955	}\
		5956	};\
8108	schaersvoo	5957	};\n\
8257	schaersvoo	5958	<!-- end function 12 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5959	break;
		5960	case 13: fprintf(js_include_file,"\
8257	schaersvoo	5961	\n<!-- begin function 13 read_canvas%d() -->\n\
		5962	read_canvas%d = function(){\
7614	schaersvoo	5963	var reply = new Array();\
		5964	var p = 0;var i = 0;\
8074	schaersvoo	5965	var prec = %d;\
7614	schaersvoo	5966	while(userdraw_x[p]){\
8074	schaersvoo	5967	reply[i] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec;\
7614	schaersvoo	5968	p = p+2;i++;\
		5969	};\
11806	schaersvoo	5970	if(p == 0){return;};\
7614	schaersvoo	5971	if( document.getElementById(\"canvas_input0\") ){\
		5972	var p = 0;var input_reply = new Array();\
		5973	if( document.getElementById(\"canvas_input0\")){\
		5974	var t = 0;\
		5975	while(document.getElementById(\"canvas_input\"+t)){\
		5976	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		5977	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		5978	p++;\
		5979	};\
		5980	t++;\
		5981	};\
		5982	};\
11088	schaersvoo	5983	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5984	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		5985	}\
		5986	else\
		5987	{\
		5988	return reply +\"\\n\"+input_reply;\
		5989	}\
		5990	}\
		5991	else\
		5992	{\
11088	schaersvoo	5993	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	5994	return reply +\"\\n\"+userdraw_text\
		5995	}\
		5996	else\
		5997	{\
		5998	return reply;\
		5999	}\
		6000	};\
8108	schaersvoo	6001	};\n\
8257	schaersvoo	6002	<!-- end function 13 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6003	break;
		6004	case 14: fprintf(js_include_file,"\
8257	schaersvoo	6005	\n<!-- begin function 14 read_canvas%d() -->\n\
		6006	read_canvas%d = function(){\
8074	schaersvoo	6007	set_reply_precision();\
7614	schaersvoo	6008	var reply = new Array();\
		6009	var p = 0;var i = 0;\
		6010	while(userdraw_x[p]){\
		6011	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		6012	p = p+2;i++;\
		6013	};\
11806	schaersvoo	6014	if(p == 0){return;};\
7614	schaersvoo	6015	if( document.getElementById(\"canvas_input0\") ){\
		6016	var p = 0;var input_reply = new Array();\
		6017	if( document.getElementById(\"canvas_input0\")){\
		6018	var t = 0;\
		6019	while(document.getElementById(\"canvas_input\"+t)){\
		6020	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6021	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6022	p++;\
		6023	};\
		6024	t++;\
		6025	};\
		6026	};\
11088	schaersvoo	6027	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6028	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6029	}\
		6030	else\
		6031	{\
		6032	return reply +\"\\n\"+input_reply;\
		6033	}\
		6034	}\
		6035	else\
		6036	{\
11088	schaersvoo	6037	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6038	return reply +\"\\n\"+userdraw_text;\
		6039	}\
		6040	else\
		6041	{\
		6042	return reply;\
		6043	}\
		6044	};\
8108	schaersvoo	6045	};\n\
8257	schaersvoo	6046	<!-- end function 14 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6047	break;
		6048	case 15: fprintf(js_include_file,"\
8257	schaersvoo	6049	\n<!-- begin function 15 read_canvas%d() -->\n\
		6050	read_canvas%d = function(){\
7614	schaersvoo	6051	var input_reply = new Array();\
		6052	var p = 0;\
		6053	if( document.getElementById(\"canvas_input0\")){\
		6054	var t = 0;\
		6055	while(document.getElementById(\"canvas_input\"+t)){\
		6056	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6057	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6058	p++;\
		6059	};\
		6060	t++;\
		6061	};\
		6062	};\
11088	schaersvoo	6063	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6064	return input_reply +\"\\n\"+userdraw_text;\
		6065	}\
		6066	else\
		6067	{\
		6068	return input_reply;\
		6069	};\
8108	schaersvoo	6070	};\n\
8257	schaersvoo	6071	<!-- end function 15 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6072	break;
		6073	case 16: fprintf(js_include_file,"\
7653	schaersvoo	6074	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	6075	function read_mathml(){\
		6076	var reply = new Array();\
		6077	var p = 0;\
		6078	if( document.getElementById(\"mathml0\")){\
		6079	while(document.getElementById(\"mathml\"+p)){\
		6080	reply[p] = document.getElementById(\"mathml\"+p).value;\
		6081	p++;\
		6082	};\
		6083	};\
		6084	return reply;\
		6085	};\
		6086	this.read_mathml = read_mathml;\n\
7653	schaersvoo	6087	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	6088	break;
		6089	case 17: fprintf(js_include_file,"\
8257	schaersvoo	6090	\n<!-- begin function 17 read_canvas%d() -->\n\
		6091	read_canvas%d = function(){\
11080	schaersvoo	6092	var len = userdraw_x.length;\
		6093	if( len == 0){alert(\"no text typed...\");return;}\
		6094	var rep = px2x(userdraw_x[0])+\",\"+px2y(userdraw_y[0])+\",\"+userdraw_text[0];\
		6095	for(var p = 1 ; p < len ; p++){\
		6096	rep = rep + \"\\n\" + px2x(userdraw_x[p]) + \",\" + px2y(userdraw_y[p]) + \",\" + userdraw_text[p];\
		6097	};\
		6098	return rep;\
8108	schaersvoo	6099	};\n\
8257	schaersvoo	6100	<!-- end function 17 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6101	break;
		6102	case 18: fprintf(js_include_file,"\
10956	schaersvoo	6103	\n<!-- javascript has no real modulo function -->\n\
		6104	function mod(n, m){\
		6105	var m = parseInt(((n %% m) + m) %% m);\
		6106	return m;\
		6107	};\
8257	schaersvoo	6108	\n<!-- begin function 18 read_canvas%d() -->\n\
		6109	read_canvas%d = function(){\
7614	schaersvoo	6110	var p = 0;\
		6111	var reply = new Array();\
		6112	var name;\
		6113	var t = true;\
8000	schaersvoo	6114	var h;var m;var s;\
7614	schaersvoo	6115	while(t){\
8000	schaersvoo	6116	try{\
		6117	name = eval('clocks'+p);\
		6118	h = name.H;m = name.M;s = name.S;\
10956	schaersvoo	6119	h = mod((h+m/60+s/3600),12);m = mod((m + s/60),60);s = mod(s,60);\
8000	schaersvoo	6120	reply[p] = h+\":\"+m+\":\"+s;\
		6121	p++;\
		6122	}catch(e){t=false;};\
7614	schaersvoo	6123	};\
8000	schaersvoo	6124	if( p == 0 ){alert(\"clock(s) not modified...\");return;}\
7614	schaersvoo	6125	return reply;\
8108	schaersvoo	6126	};\n\
8257	schaersvoo	6127	<!-- end function 18 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6128	break;
		6129	case 19: fprintf(js_include_file,"\
8257	schaersvoo	6130	\n<!-- begin function 19 read_canvas%d() -->\n\
		6131	read_canvas%d = function(){\
7614	schaersvoo	6132	return reply[0];\
8108	schaersvoo	6133	};\n\
8257	schaersvoo	6134	<!-- end function 19 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
8130	schaersvoo	6135	break;
7614	schaersvoo	6136	case 20: fprintf(js_include_file,"\
8257	schaersvoo	6137	\n<!-- begin function 20 read_canvas%d() -->\n\
		6138	read_canvas%d = function(){\
8074	schaersvoo	6139	var prec = %d;\
7614	schaersvoo	6140	var len = ext_drag_images.length;\
		6141	var reply = new Array(len);\
		6142	for(var p = 0 ; p < len ; p++){\
		6143	var img = ext_drag_images[p];\
8556	schaersvoo	6144	reply[p] = p+\":\"+(Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
7614	schaersvoo	6145	};\
		6146	return reply;\
8108	schaersvoo	6147	};\n\
8257	schaersvoo	6148	<!-- end function 20 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6149	break;
		6150	case 21: fprintf(js_include_file,"\
8257	schaersvoo	6151	\n<!-- begin function 21 read_canvas%d() -->\n\
		6152	read_canvas%d = function(){\
7614	schaersvoo	6153	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		6154	var reply_coord = new Array();var p = 0;\
8074	schaersvoo	6155	var prec = %d;\
7614	schaersvoo	6156	while(userdraw_x[p]){\
8074	schaersvoo	6157	reply_coord[p] = \"(\"+(Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\")\";\
7614	schaersvoo	6158	p++;\
		6159	};\
11806	schaersvoo	6160	if(p == 0){return;};\
7614	schaersvoo	6161	if( document.getElementById(\"canvas_input0\") ){\
		6162	var p = 0;var input_reply = new Array();\
		6163	if( document.getElementById(\"canvas_input0\")){\
		6164	var t = 0;\
		6165	while(document.getElementById(\"canvas_input\"+t)){\
		6166	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6167	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6168	p++;\
		6169	};\
		6170	t++;\
		6171	};\
		6172	};\
11088	schaersvoo	6173	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6174	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6175	}\
		6176	else\
		6177	{\
		6178	return reply_coord+\"\\n\"+input_reply;\
		6179	}\
		6180	}\
		6181	else\
		6182	{\
11088	schaersvoo	6183	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6184	return reply_coord+\"\\n\"+userdraw_text;\
		6185	}\
		6186	else\
		6187	{\
		6188	return reply_coord;\
		6189	};\
		6190	};\
8108	schaersvoo	6191	};\n\
8257	schaersvoo	6192	<!-- end function 21 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6193	break;
		6194	case 22: fprintf(js_include_file,"\
8257	schaersvoo	6195	\n<!-- begin function 22 read_canvas%d() -->\n\
		6196	read_canvas%d = function(){\
7614	schaersvoo	6197	var reply = new Array();\
7963	schaersvoo	6198	var lu = userdraw_x.length;\
11806	schaersvoo	6199	if(lu == 0){return;};\
7614	schaersvoo	6200	var idx = 0;\
8074	schaersvoo	6201	var prec = %d;\
7963	schaersvoo	6202	for(var p = 0 ; p < lu ; p++){\
8074	schaersvoo	6203	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;idx++;\
		6204	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;idx++;\
7614	schaersvoo	6205	};\
		6206	if( document.getElementById(\"canvas_input0\") ){\
		6207	var p = 0;var input_reply = new Array();\
		6208	if( document.getElementById(\"canvas_input0\")){\
		6209	var t = 0;\
		6210	while(document.getElementById(\"canvas_input\"+t)){\
		6211	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6212	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6213	p++;\
		6214	};\
		6215	t++;\
		6216	};\
		6217	};\
11088	schaersvoo	6218	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6219	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6220	}\
		6221	else\
		6222	{\
		6223	return reply +\"\\n\"+input_reply;\
		6224	}\
		6225	}\
		6226	else\
		6227	{\
11088	schaersvoo	6228	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6229	return reply +\"\\n\"+userdraw_text;\
		6230	}\
		6231	else\
		6232	{\
		6233	return reply;\
		6234	}\
		6235	};\
8108	schaersvoo	6236	};\n\
8257	schaersvoo	6237	<!-- end function 22 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6238	break;
7782	schaersvoo	6239	case 23: fprintf(js_include_file,"\
8257	schaersvoo	6240	\n<!-- begin function 23 read_canvas%d() default 5 px marge -->\n\
		6241	read_canvas%d = function(){\
7782	schaersvoo	6242	if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
		6243	var lu = userdraw_x.length;\
		6244	if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
7962	schaersvoo	6245	var reply_x = new Array();var reply_y = new Array();\
		6246	var marge = 5;var p = 0;\
8074	schaersvoo	6247	var prec = %d;\
7782	schaersvoo	6248	for(var i = 0; i < lu - 1 ; i++ ){\
10987	schaersvoo	6249	if( Math.abs(userdraw_x[i] - userdraw_x[i+1]) \|\| Math.abs(userdraw_y[i] - userdraw_y[i+1])){\
8074	schaersvoo	6250	reply_x[p] = (Math.round(prec(px2x(userdraw_x[i]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[i]))))/prec;\
7962	schaersvoo	6251	if( isNaN(reply_x[p]) \|\| isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
		6252	p++;\
7782	schaersvoo	6253	};\
8074	schaersvoo	6254	reply_x[p] = (Math.round(prec(px2x(userdraw_x[lu-1]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[lu-1]))))/prec;\
7782	schaersvoo	6255	};\
		6256	if( document.getElementById(\"canvas_input0\")){\
		6257	var p = 0;var input_reply = new Array();\
		6258	if( document.getElementById(\"canvas_input0\")){\
		6259	var t = 0;\
		6260	while(document.getElementById(\"canvas_input\"+t)){\
		6261	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6262	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6263	p++;\
		6264	};\
		6265	t++;\
		6266	};\
		6267	};\
11088	schaersvoo	6268	if( typeof(userdraw_text) !== 'undefined' ){\
7782	schaersvoo	6269	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6270	}\
		6271	else\
		6272	{\
		6273	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		6274	}\
		6275	}\
		6276	else\
		6277	{\
11088	schaersvoo	6278	if( typeof(userdraw_text) !== 'undefined' ){\
7782	schaersvoo	6279	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		6280	}\
		6281	else\
		6282	{\
		6283	return reply_x+\"\\n\"+reply_y;\
		6284	};\
		6285	};\
8108	schaersvoo	6286	};\n\
8257	schaersvoo	6287	<!-- end function 23 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7782	schaersvoo	6288	break;
7984	schaersvoo	6289	case 24: fprintf(js_include_file,"\n\
8257	schaersvoo	6290	<!-- begin function 24 read_canvas%d() -->\n\
		6291	read_canvas%d = function(){\
7984	schaersvoo	6292	var input_reply = new Array();\
		6293	var p = 0;\
		6294	if( document.getElementById(\"canvas_input0\")){\
		6295	while(document.getElementById(\"canvas_input\"+p)){\
		6296	input_reply[p] = document.getElementById(\"canvas_input\"+p).value;\
		6297	p++;\
		6298	};\
		6299	return input_reply;\
		6300	};\
8108	schaersvoo	6301	};\n\
8257	schaersvoo	6302	<!-- end function 24 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7984	schaersvoo	6303	break;
8083	schaersvoo	6304	case 25:
8257	schaersvoo	6305	fprintf(js_include_file,"\n<!-- begin function 25 read_canvas%d() : angle(s) in degrees-->\n\
		6306	read_canvas%d = function(){\
8083	schaersvoo	6307	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		6308	var lu = userdraw_radius.length;\
		6309	var prec = %d;\
		6310	var angle_reply = new Array(lu);\
		6311	for(var p = 0 ; p < lu ; p++){\
		6312	angle_reply[p] = (Math.round(prec180(userdraw_radius[p])/Math.PI))/prec;\
		6313	};\
		6314	return angle_reply;\
8108	schaersvoo	6315	};\n\
8257	schaersvoo	6316	<!-- end function 25 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	6317	break;
		6318	case 26:
8257	schaersvoo	6319	fprintf(js_include_file,"\n<!-- begin function 26 read_canvas%d() : angle(s) in radians-->\n\
		6320	read_canvas%d = function(){\
8083	schaersvoo	6321	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		6322	var lu = userdraw_radius.length;\
		6323	var prec = %d;\
		6324	var angle_reply = new Array(lu);\
		6325	for(var p = 0 ; p < lu ; p++){\
		6326	angle_reply[p] = (Math.round(prec*(userdraw_radius[p])))/prec;\
		6327	};\
		6328	return angle_reply;\
8108	schaersvoo	6329	};\n\
8257	schaersvoo	6330	<!-- end function 26 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	6331	break;
8127	schaersvoo	6332	case 27:
8257	schaersvoo	6333	fprintf(js_include_file,"\n<!-- begin function 27 read_canvas%d() : inputfield(s) location and their values : -->\n\
		6334	read_canvas%d = function(){\
8127	schaersvoo	6335	var lu = userdraw_x.length;\
		6336	if( lu < 1){alert(\"nothing drawn...\");return;}\
		6337	set_reply_precision();\
		6338	var prec = %d;\
11080	schaersvoo	6339	var rep = (Math.round(prec(px2x(userdraw_x[p]))))/prec+\",\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\",\"+ document.getElementById(\"canvas_input\"+p).value;\
8127	schaersvoo	6340	for(var p = 0 ; p < lu ; p++){\
11080	schaersvoo	6341	rep = rep = \"\\n\" + (Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\":\"+ document.getElementById(\"canvas_input\"+p).value;\
8127	schaersvoo	6342	};\
11080	schaersvoo	6343	return rep;\
8127	schaersvoo	6344	};\n\
8257	schaersvoo	6345	<!-- end function 27 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8127	schaersvoo	6346	break;
8322	schaersvoo	6347	case 28:
		6348	fprintf(js_include_file,"\n<!-- begin function 28 read_canvas%d() -->\n\
		6349	read_canvas%d = function(){\
		6350	var prec = %d;\
		6351	var reply = new Array();var p = 0;\
		6352	var idx = 0;\
		6353	while(userdraw_x[p]){\
		6354	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		6355	idx++;\
		6356	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
		6357	idx++;\
		6358	reply[idx] = (Math.round(prec*(px2x(userdraw_radius[p]) - px2x(0))))/prec;\
		6359	idx++;\
		6360	p++;\
		6361	};\
		6362	if( p == 0){alert(\"nothing drawn...\");return;}\
		6363	return reply;\
		6364	};\n\
9213	schaersvoo	6365	<!-- end function 28 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8322	schaersvoo	6366	break;
9213	schaersvoo	6367	case 29:
		6368	fprintf(js_include_file,"\n<!-- begin function 29 read_canvas%d() -->\n\
		6369	function xy_precision(array_x,array_y){\
		6370	var len = array_x.length;\
		6371	var x_array = new Array(len);\
		6372	var y_array = new Array(len);\
		6373	var prec = %d;\
		6374	for(var p = 0 ; p < len ; p++ ){\
		6375	x_array[p] = (Math.round(prec*(px2x(array_x[p]))))/prec;\
		6376	y_array[p] = (Math.round(prec*(px2y(array_y[p]))))/prec;\
		6377	};\
9230	schaersvoo	6378	return x_array+\";\"+y_array;\
9213	schaersvoo	6379	};\n\
		6380	function round_to_pixel(array_r){\
		6381	var len = array_r.length;\
		6382	for(var p = 0 ; p < len ; p++ ){\
		6383	array_r[p] = Math.round(array_r[p]);\
		6384	};\
		6385	return array_r;\
		6386	};\
		6387	read_canvas%d = function(){\
9300	schaersvoo	6388	var reply=\" \";\
		6389	if( points_x && points_x.length > 0 ){reply = reply + xy_precision(points_x,points_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
		6390	if( circles_x && circles_x.length > 0 ){ reply = reply + xy_precision(circles_x,circles_y)+\";\"+round_to_pixel(multi_radius)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
		6391	if( segments_x && segments_x.length > 0 ){ reply = reply + xy_precision(segments_x,segments_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
		6392	if( arrows_x && arrows_x.length > 0 ){ reply = reply + xy_precision(arrows_x,arrows_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
		6393	if( lines_x && lines_x.length > 0 ){ reply = reply + xy_precision(lines_x,lines_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
		6394	if( triangles_x && triangles_x.length > 0){ reply = reply + xy_precision(triangles_x,triangles_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
11226	schaersvoo	6395	if( polys_x && polys_x.length > 0){ reply = reply + xy_precision(polys_x,polys_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
9372	schaersvoo	6396	if( rects_x && rects_x.length > 0 ){ reply = reply + xy_precision(rects_x,rects_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
9300	schaersvoo	6397	if( closedpoly_x && closedpoly_x.length > 0){ closedpoly_x.pop();closedpoly_y.pop();reply = reply + xy_precision(closedpoly_x,closedpoly_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
11230	schaersvoo	6398	if( parallelogram_x && parallelogram_x.length > 0){ reply = reply + xy_precision(parallelogram_x,parallelogram_y)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
9338	schaersvoo	6399	if( text_x && text_x.length > 0){ reply = reply + xy_precision(text_x,text_y)+\";\"+text_abc+\"\\n\"; }else{ reply = reply + \"\\n\"; };\n\
9213	schaersvoo	6400	return reply;\
		6401	};\n\
		6402	<!-- end function 29 read_canvas%d() -->",canvas_root_id,reply_precision,canvas_root_id,canvas_root_id);
		6403	break;
9289	schaersvoo	6404	case 30:
		6405	fprintf(js_include_file,"\n<!-- begin function 30 read_canvas%d() -->\n\
		6406	read_canvas%d = function(){\
		6407	var reply = new Array(3);\
		6408	var prec = %d;\
		6409	reply[0] = (Math.round(prec*(px2x(protractor_data[0]))))/prec;\
		6410	reply[1] = (Math.round(prec*(px2y(protractor_data[1]))))/prec;\
		6411	reply[2] = (Math.round(prec*(protractor_data[2])))/prec;\
		6412	return reply;\
		6413	};\n\
		6414	<!-- end function 30 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
		6415	break;
		6416	case 31:
		6417	fprintf(js_include_file,"\n<!-- begin function 31 read_canvas%d() -->\n\
		6418	read_canvas%d = function(){\
		6419	var reply = new Array(3);\
		6420	var prec = %d;\
		6421	reply[0] = (Math.round(prec*(px2x(ruler_data[0]))))/prec;\
		6422	reply[1] = (Math.round(prec*(px2y(ruler_data[1]))))/prec;\
		6423	reply[2] = (Math.round(prec*(ruler_data[2])))/prec;\
		6424	return reply;\
		6425	};\n\
		6426	<!-- end function 31 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
		6427	break;
		6428	case 32:
		6429	fprintf(js_include_file,"\n<!-- begin function 32 read_canvas%d() -->\n\
		6430	read_canvas%d = function(){\
		6431	var reply = new Array(6);\
		6432	var prec = %d;\
		6433	reply[0] = (Math.round(prec*(px2x(ruler_data[0]))))/prec;\
		6434	reply[1] = (Math.round(prec*(px2y(ruler_data[1]))))/prec;\
		6435	reply[2] = (Math.round(prec*(ruler_data[2])))/prec;\
		6436	reply[3] = (Math.round(prec*(px2x(protractor_data[0]))))/prec;\
		6437	reply[4] = (Math.round(prec*(px2y(protractor_data[1]))))/prec;\
		6438	reply[5] = (Math.round(prec*(protractor_data[2])))/prec;\
		6439	return reply;\
		6440	};\n\
		6441	<!-- end function 32 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
		6442	break;
7614	schaersvoo	6443	default: canvas_error("hmmm unknown replyformat...");break;
		6444	}
		6445	return;
		6446	}
		6447
		6448
8224	bpr	6449	/*
		6450	add drawfunction :
7614	schaersvoo	6451	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		6452	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		6453	- grid / mathml
		6454	- will not scale or zoom in
		6455	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
8224	bpr	6456	- is printed directly into 'js_include_file'
7614	schaersvoo	6457	*/
		6458
11021	schaersvoo	6459	void add_javascript_function(int js_function[],int canvas_root_id){
7614	schaersvoo	6460	int i;
		6461	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
11017	schaersvoo	6462	if( js_function[i] == 1){
7614	schaersvoo	6463	switch(i){
11026	bpr	6464	case JS_FIND_ANGLE:
11025	schaersvoo	6465	fprintf(js_include_file,"\n\
		6466	<!-- function find_angle() -->\n\
		6467	function find_angle(xc,yc,x1,y1){\
11019	schaersvoo	6468	var dx = x1 - xc;\
		6469	var dy = yc - y1;\
		6470	if( dx > 0 && dy < 0){ return Math.atan(-1*dy/dx);};\
		6471	if( dx < 0 && dy < 0){ return Math.PI + Math.atan(-1*dy/dx);};\
		6472	if( dx < 0 && dy > 0){ return Math.PI + Math.atan(-1*dy/dx);};\
		6473	if( dx > 0 && dy > 0){ return 2Math.PI + Math.atan(-1dy/dx);};};");
11017	schaersvoo	6474	break;
8448	schaersvoo	6475	case DRAW_EXTERNAL_IMAGE:
10953	bpr	6476	/* the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
8448	schaersvoo	6477	draw_external_image(URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9]);
		6478	*/
7614	schaersvoo	6479	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	6480	var external_ctx = external_canvas.getContext(\"2d\");\
		6481	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		6482	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		6483	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		6484	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		6485	var selected_image = null;\
		6486	var ext_image_cnt = 0;\
		6487	var ext_drag_images = new Array();\
8448	schaersvoo	6488	function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,resizable,draggable,click_cnt){\
7653	schaersvoo	6489	ext_image_cnt = idx;\
8448	schaersvoo	6490	if(draggable == 1 ){\
		6491	reply[click_cnt] = 0;\
		6492	};\
7653	schaersvoo	6493	var image = new Image();\
		6494	image.src = URL;\
		6495	image.onload = function(){\
8448	schaersvoo	6496	if( sx < 1 ){ sx = 0; };\
		6497	if( sy < 1 ){ sy = 0; };\
		6498	if( swidth < 1 ){swidth = image.width;};\
		6499	if( sheight < 1 ){sheight = image.height;};\
		6500	if( width < 1 ){width = image.width;};\
		6501	if( height < 1 ){height = image.height;};\
		6502	if( resizable == 0 ){\
		6503	if( swidth > image.width ){ swidth = image.width; };\
		6504	if( sheight > image.height){ sheight = image.height;};\
		6505	if( width > image.width ){ width = image.width; };\
		6506	if( height > image.height){ height = image.height;};\
		6507	};\
		6508	var img = new Array(11);\
7653	schaersvoo	6509	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
8448	schaersvoo	6510	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;img[10] = click_cnt;\
7653	schaersvoo	6511	ext_drag_images[idx] = img;\
		6512	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		6513	};\
		6514	};\
		6515	function dragstop(evt){\
		6516	selected_image = null;return;\
		6517	};\
		6518	function dragxy(evt){\
		6519	if( selected_image != null ){\
		6520	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		6521	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		6522	var s_img = ext_drag_images[selected_image];\
		6523	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		6524	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
8386	schaersvoo	6525	if( use_snap_to_points == 1){\
		6526	var img_xy = snap_to_points(s_img[6],s_img[7]);\
		6527	s_img[6] = img_xy[0];s_img[7] = img_xy[1];\
		6528	}\
		6529	else\
		6530	{\
		6531	if( x_use_snap_to_grid == 1 ){\
		6532	s_img[6] = snap_to_x(s_img[6]);\
		6533	};\
		6534	if( y_use_snap_to_grid == 1 ){\
		6535	s_img[7] = snap_to_x(s_img[7]);\
		6536	};\
		6537	};\
7653	schaersvoo	6538	ext_drag_images[selected_image] = s_img;\
		6539	external_ctx.clearRect(0,0,xsize,ysize);\
		6540	for(var i = 0; i <= ext_image_cnt ; i++){\
		6541	var img = ext_drag_images[i];\
		6542	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		6543	};\
		6544	};\
		6545	};\
		6546	function setxy(evt){\
		6547	if( ! selected_image && evt.which == 1 ){\
		6548	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		6549	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		6550	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		6551	var ym = evt.clientY - external_canvas_rect.top + yoff;\
8448	schaersvoo	6552	var img;\
7653	schaersvoo	6553	for(var p = 0 ; p <= ext_image_cnt ; p++){\
8448	schaersvoo	6554	if( ext_drag_images[p] ){\
		6555	img = ext_drag_images[p];\
		6556	if( img[0] != 0 ){\
		6557	if( xm > img[6] && xm < img[6] + img[8]){\
		6558	if( ym > img[7] && ym < img[7] + img[9]){\
		6559	if( img[0] == 1){\
		6560	if( reply[img[10]] == 1 ){\
		6561	reply[img[10]] = 0;external_ctx.strokeStyle = '#ffffff';\
		6562	}\
		6563	else\
		6564	{\
		6565	reply[img[10]] = 1;external_ctx.strokeStyle = '#00ff00';\
		6566	};\
		6567	external_ctx.lineWidth = 6;\
		6568	external_ctx.beginPath();\
		6569	external_ctx.rect(img[6],img[7],img[8],img[9]);\
		6570	external_ctx.closePath();\
		6571	external_ctx.stroke();\
		6572	return;\
		6573	}\
		6574	else\
		6575	{\
		6576	img[6] = xm;\
		6577	img[7] = ym;\
		6578	ext_drag_images[p] = img;\
		6579	selected_image = p;\
		6580	dragxy(evt);\
		6581	};\
		6582	};\
7653	schaersvoo	6583	};\
		6584	};\
		6585	};\
		6586	};\
		6587	}\
		6588	else\
		6589	{\
		6590	selected_image = null;\
		6591	};\
8448	schaersvoo	6592	};");
7614	schaersvoo	6593	break;
8370	schaersvoo	6594	case DRAW_BEZIER:
		6595	fprintf(js_include_file,"\n<!-- draw bezier curve -->\n\
		6596	var draw_bezier = function(canvas_type,linewidth,xy_points,fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
		6597	var obj;\
		6598	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6599	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6600	}\
		6601	else\
		6602	{\
		6603	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6604	};\
		6605	var ctx = obj.getContext(\"2d\");\
		6606	ctx.save();\
		6607	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6608	ctx.lineWidth = linewidth;\
11088	schaersvoo	6609	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8370	schaersvoo	6610	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
		6611	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		6612	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6613	ctx.beginPath();\
		6614	ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
		6615	ctx.bezierCurveTo(x2px(xy_points[2]),y2px(xy_points[3]),x2px(xy_points[4]),y2px(xy_points[5]),x2px(xy_points[6]),y2px(xy_points[7]));\
		6616	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		6617	ctx.stroke();\
		6618	ctx.restore();\
		6619	};\n",canvas_root_id,canvas_root_id,canvas_root_id);
		6620	break;
7614	schaersvoo	6621	case DRAW_GRIDFILL:/* not used for userdraw */
		6622	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
8105	schaersvoo	6623	var draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
7614	schaersvoo	6624	var obj;\
		6625	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6626	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6627	}\
		6628	else\
		6629	{\
		6630	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6631	};\
		6632	var ctx = obj.getContext(\"2d\");\
		6633	var x,y;\
7883	schaersvoo	6634	snap_x = dx;snap_y = dy;\
7614	schaersvoo	6635	ctx.save();\
9462	schaersvoo	6636	ctx.lineWidth = line_width;\
11088	schaersvoo	6637	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6638	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		6639	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		6640	ctx.moveTo(x,y0);\
		6641	ctx.lineTo(x,ysize);\
		6642	};\
7645	schaersvoo	6643	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	6644	ctx.moveTo(x0,y);\
		6645	ctx.lineTo(xsize,y);\
		6646	};\
		6647	ctx.stroke();\
		6648	ctx.restore();\
7653	schaersvoo	6649	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6650	break;
8224	bpr	6651
7614	schaersvoo	6652	case DRAW_IMAGEFILL:/* not used for userdraw */
		6653	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
8105	schaersvoo	6654	var draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
7614	schaersvoo	6655	var obj;\
		6656	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6657	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6658	}\
		6659	else\
		6660	{\
		6661	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6662	};\
		6663	var ctx = obj.getContext(\"2d\");\
		6664	ctx.save();\
		6665	var img = new Image();\
		6666	img.src = URL;\
		6667	img.onload = function(){\
		6668	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		6669	ctx.drawImage(img,x0,y0,xsize,ysize);\
		6670	}\
		6671	else\
		6672	{\
		6673	var repeat = \"repeat\";\
		6674	if(img.width > xsize - x0){\
		6675	repeat = \"repeat-y\";\
		6676	}\
		6677	else\
		6678	{\
		6679	if( img.height > ysize -x0 ){\
		6680	repeat = \"repeat-x\";\
		6681	}\
		6682	}\
		6683	var pattern = ctx.createPattern(img,repeat);\
		6684	ctx.rect(x0,y0,xsize,ysize);\
		6685	ctx.fillStyle = pattern;\
		6686	}\
		6687	ctx.fill();\
		6688	};\
		6689	ctx.restore();\
		6690	return;\
7653	schaersvoo	6691	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6692	break;
8224	bpr	6693
7614	schaersvoo	6694	case DRAW_DOTFILL:/* not used for userdraw */
		6695	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
11818	schaersvoo	6696	var click_fill_pattern;\
11817	schaersvoo	6697	var draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\n\
11818	schaersvoo	6698	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		6699	var fc = %d+canvas_type;\n\
		6700	fill_canvas_no.push(fc);\
		6701	var obj = create_canvas%d(fc,xsize,ysize);\n\
11817	schaersvoo	6702	var ctx = obj.getContext('2d');\n\
		6703	var x,y;\n\
		6704	ctx.fillStyle='rgba(255,255,255,0.01)';\n\
		6705	ctx.rect(0,0,xsize,ysize);\n\
		6706	ctx.fill();\n\
		6707	ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\n\
		6708	ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\n\
		6709	for( x = 0 ; x < xsize ; x = x + dx ){\n\
		6710	for( y = 0 ; y < ysize ; y = y + dy ){\n\
		6711	ctx.beginPath();\n\
		6712	ctx.arc(x,y,radius,0,2*Math.PI,false);\n\
		6713	ctx.closePath();\n\
		6714	ctx.fill();\n\
		6715	};\n\
		6716	};\n\
11818	schaersvoo	6717	click_fill_pattern = ctx;\n\
		6718	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\n\
		6719	return;};",canvas_root_id,canvas_root_id);
7614	schaersvoo	6720	break;
7645	schaersvoo	6721
7647	schaersvoo	6722	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	6723	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	6724	var draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	6725	var obj;\
		6726	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6727	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6728	}\
		6729	else\
		6730	{\
		6731	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6732	};\
		6733	var ctx = obj.getContext(\"2d\");\
		6734	var x;\
		6735	var y;\
		6736	ctx.save();\
		6737	ctx.lineWidth = linewidth;\
11088	schaersvoo	6738	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6739	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6740	y = ysize;\
		6741	for( x = x0 ; x < xsize ; x = x + dx ){\
		6742	ctx.moveTo(x,y0);\
		6743	ctx.lineTo(xsize,y);\
		6744	y = y - dy;\
		6745	};\
		6746	y = y0;\
		6747	for( x = xsize ; x > 0 ; x = x - dx){\
		6748	ctx.moveTo(x,ysize);\
		6749	ctx.lineTo(x0,y);\
		6750	y = y + dy;\
		6751	};\
		6752	x = x0;\
		6753	for( y = y0 ; y < ysize ; y = y + dy ){\
		6754	ctx.moveTo(xsize,y);\
		6755	ctx.lineTo(x,ysize);\
		6756	x = x + dx;\
		6757	};\
		6758	x = xsize;\
		6759	for( y = ysize ; y > y0 ; y = y - dy ){\
		6760	ctx.moveTo(x,y0);\
		6761	ctx.lineTo(x0,y);\
		6762	x = x - dx;\
		6763	};\
		6764	ctx.stroke();\
		6765	ctx.restore();\
		6766	return;\
7653	schaersvoo	6767	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6768	break;
8224	bpr	6769
7647	schaersvoo	6770	case DRAW_HATCHFILL:/* not used for userdraw */
		6771	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	6772	var draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7647	schaersvoo	6773	var obj;\
		6774	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6775	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6776	}\
		6777	else\
		6778	{\
		6779	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6780	};\
		6781	var ctx = obj.getContext(\"2d\");\
		6782	var x;\
		6783	var y;\
		6784	ctx.save();\
		6785	ctx.lineWidth = linewidth;\
11088	schaersvoo	6786	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7647	schaersvoo	6787	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6788	y = ysize;\
		6789	for( x = x0 ; x < xsize ; x = x + dx ){\
		6790	ctx.moveTo(x,y0);\
		6791	ctx.lineTo(xsize,y);\
		6792	y = y - dy;\
		6793	};\
		6794	y = y0;\
		6795	for( x = xsize ; x >= dx ; x = x - dx){\
		6796	ctx.moveTo(x,ysize);\
		6797	ctx.lineTo(x0,y);\
		6798	y = y + dy;\
		6799	};\
		6800	ctx.stroke();\
		6801	ctx.restore();\
		6802	return;\
7653	schaersvoo	6803	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	6804	break;
7614	schaersvoo	6805	case DRAW_CIRCLES:/* used for userdraw */
		6806	fprintf(js_include_file,"\n<!-- draw circles -->\n\
8105	schaersvoo	6807	var draw_circles = function(ctx,x_points,y_points,radius,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6808	ctx.save();\
8071	schaersvoo	6809	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6810	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6811	ctx.lineWidth = line_width;\
11088	schaersvoo	6812	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6813	for(var p = 0 ; p < x_points.length ; p++ ){\
		6814	ctx.beginPath();\
		6815	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		6816	ctx.closePath();\
		6817	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6818	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		6819	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6820	ctx.stroke();\
		6821	}\
		6822	ctx.restore();\
		6823	return;\
7653	schaersvoo	6824	};");
7614	schaersvoo	6825	break;
7663	schaersvoo	6826	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		6827	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
8105	schaersvoo	6828	var draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7663	schaersvoo	6829	ctx.save();\
8071	schaersvoo	6830	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7663	schaersvoo	6831	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6832	ctx.lineWidth = line_width;\
11088	schaersvoo	6833	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7663	schaersvoo	6834	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6835	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6836	ctx.clearRect(0,0,xsize,ysize);\
		6837	ctx.beginPath();\
		6838	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		6839	ctx.moveTo(x_points[p],y_points[p]);\
		6840	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		6841	}\
		6842	ctx.closePath();\
		6843	ctx.stroke();\
		6844	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6845	for(var p = 0 ; p < x_points.length ; p++ ){\
		6846	ctx.beginPath();\
		6847	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		6848	ctx.closePath();ctx.fill();ctx.stroke();\
		6849	};\
		6850	ctx.restore();\
		6851	return;\
		6852	};");
		6853	break;
8224	bpr	6854
7614	schaersvoo	6855	case DRAW_SEGMENTS:/* used for userdraw */
		6856	fprintf(js_include_file,"\n<!-- draw segments -->\n\
8105	schaersvoo	6857	var draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6858	ctx.save();\
8071	schaersvoo	6859	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6860	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6861	ctx.lineWidth = line_width;\
11088	schaersvoo	6862	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6863	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6864	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6865	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		6866	ctx.beginPath();\
		6867	ctx.moveTo(x_points[p],y_points[p]);\
		6868	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		6869	ctx.closePath();\
		6870	ctx.stroke();\
		6871	}\
		6872	ctx.restore();\
		6873	return;\
		6874	};");
		6875	break;
8224	bpr	6876
7614	schaersvoo	6877	case DRAW_LINES:/* used for userdraw */
		6878	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		6879	function calc_line(x1,x2,y1,y2){\
		6880	var marge = 2;\
		6881	if(x1 < x2+marge && x1>x2-marge){\
		6882	return [x1,0,x1,ysize];\
		6883	};\
		6884	if(y1 < y2+marge && y1>y2-marge){\
		6885	return [0,y1,xsize,y1];\
		6886	};\
		6887	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		6888	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		6889	return [0,Y1,xsize,Y2];\
		6890	};\
8105	schaersvoo	6891	var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6892	ctx.save();\
		6893	var line = new Array(4);\
8071	schaersvoo	6894	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6895	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6896	ctx.lineWidth = line_width;\
11088	schaersvoo	6897	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6898	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6899	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6900	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		6901	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		6902	ctx.beginPath();\
		6903	ctx.moveTo(line[0],line[1]);\
		6904	ctx.lineTo(line[2],line[3]);\
		6905	ctx.closePath();\
		6906	ctx.stroke();\
		6907	}\
		6908	ctx.restore();\
		6909	return;\
		6910	};");
		6911	break;
		6912
8244	schaersvoo	6913	case DRAW_DEMILINES:/* used for userdraw */
		6914	fprintf(js_include_file,"\n<!-- draw demilines -->\n\
		6915	function find_inf_point(x1,y1,x2,y2){\
		6916	if(x1<x2+2 && x1>x2-2){if(y1<y2){return [x1,y1,x1,ysize];}else{return [x1,0,x1,y1];};};\
		6917	var rc = (y2 - y1)/(x2 - x1);var q = y1 - (x1)*rc;\
		6918	if( x1 < x2 ){ return [x1,y1,xsize,rc*xsize+q];}else{return [x1,y1,0,q];};\
		6919	};\
		6920	var draw_demilines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
		6921	ctx.save();\
		6922	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
		6923	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6924	ctx.lineWidth = line_width;\
11088	schaersvoo	6925	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8244	schaersvoo	6926	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6927	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6928	var pair = new Array(4);\
		6929	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		6930	pair = find_inf_point(x_points[p],y_points[p],x_points[p+1],y_points[p+1]);\
		6931	ctx.beginPath();\
		6932	ctx.moveTo(pair[0],pair[1]);\
		6933	ctx.lineTo(pair[2],pair[3]);\
		6934	ctx.closePath();\
		6935	ctx.stroke();\
		6936	}\
		6937	ctx.restore();\
		6938	return;\
		6939	};");
		6940	break;
		6941
7614	schaersvoo	6942	case DRAW_CROSSHAIRS:/* used for userdraw */
		6943	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
8105	schaersvoo	6944	var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
8071	schaersvoo	6945	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6946	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6947	ctx.lineWidth = line_width;\
11088	schaersvoo	6948	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	6949	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6950	var x1,x2,y1,y2;\
		6951	for(var p = 0 ; p < x_points.length ; p++ ){\
		6952	x1 = x_points[p] - crosshair_size;\
		6953	x2 = x_points[p] + crosshair_size;\
		6954	y1 = y_points[p] - crosshair_size;\
		6955	y2 = y_points[p] + crosshair_size;\
		6956	ctx.beginPath();\
		6957	ctx.moveTo(x1,y1);\
		6958	ctx.lineTo(x2,y2);\
		6959	ctx.closePath();\
		6960	ctx.stroke();\
		6961	ctx.beginPath();\
		6962	ctx.moveTo(x2,y1);\
		6963	ctx.lineTo(x1,y2);\
		6964	ctx.closePath();\
		6965	ctx.stroke();\
		6966	}\
		6967	ctx.restore();\
		6968	return;\
7653	schaersvoo	6969	};");
7614	schaersvoo	6970	break;
		6971
		6972	case DRAW_RECTS:/* used for userdraw */
		6973	fprintf(js_include_file,"\n<!-- draw rects -->\n\
8105	schaersvoo	6974	var draw_rects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6975	ctx.save();\
8071	schaersvoo	6976	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6977	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6978	ctx.lineWidth = line_width;\
11088	schaersvoo	6979	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8448	schaersvoo	6980	ctx.strokeStyle = 'rgba('+stroke_color+','+stroke_opacity+')';\
7614	schaersvoo	6981	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		6982	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		6983	ctx.beginPath();\
		6984	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		6985	ctx.closePath();\
8448	schaersvoo	6986	if(use_filled == 1 ){ctx.fillStyle = 'rgba('+fill_color+','+fill_opacity+')';ctx.fill();}\
7614	schaersvoo	6987	ctx.stroke();\
		6988	};\
		6989	ctx.restore();\
		6990	return;\
7653	schaersvoo	6991	};");
7614	schaersvoo	6992	break;
		6993
		6994	case DRAW_ROUNDRECTS:/* used for userdraw */
		6995	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
8105	schaersvoo	6996	var draw_roundrects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6997	ctx.save();\
8071	schaersvoo	6998	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6999	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7000	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
9462	schaersvoo	7001	ctx.lineWidth = line_width;\
11088	schaersvoo	7002	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7003	var x,y,w,h,r;\
		7004	for(var p = 0; p < x_points.length; p = p+2){\
		7005	x = x_points[p];y = y_points[p];w = x_points[p+1] - x;h = y_points[p+1] - y;r = parseInt(0.1*w);\
		7006	ctx.beginPath();ctx.moveTo(x + r, y);\
		7007	ctx.lineTo(x + w - r, y);\
		7008	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		7009	ctx.lineTo(x + w, y + h - r);\
		7010	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		7011	ctx.lineTo(x + r, y + h);\
		7012	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		7013	ctx.lineTo(x, y + r);\
		7014	ctx.quadraticCurveTo(x, y, x + r, y);\
		7015	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		7016	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7017	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		7018	ctx.stroke();\
		7019	}\
		7020	ctx.restore();\
7653	schaersvoo	7021	};");
8224	bpr	7022	break;
7614	schaersvoo	7023
		7024	case DRAW_ELLIPSES:/* not used for userdraw */
		7025	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
8105	schaersvoo	7026	var draw_ellipses = function(canvas_type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7027	var obj;\
		7028	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		7029	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		7030	}\
		7031	else\
		7032	{\
		7033	obj = create_canvas%d(canvas_type,xsize,ysize);\
		7034	};\
		7035	var ctx = obj.getContext(\"2d\");\
		7036	ctx.save();\
8071	schaersvoo	7037	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7038	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7039	var cx,cy,ry,rx;\
		7040	ctx.lineWidth = line_width;\
11088	schaersvoo	7041	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7042	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		7043	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7044	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7045	for(var p=0;p< x_points.length;p = p+2){\
		7046	ctx.beginPath();\
		7047	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		7048	ctx.translate(cx - rx, cy - ry);\
		7049	ctx.scale(rx, ry);\
		7050	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		7051	if( use_filled == 1 ){ctx.fill();}\
		7052	ctx.stroke();\
		7053	};\
		7054	ctx.restore();\
7653	schaersvoo	7055	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	7056	break;
		7057
		7058	case DRAW_PATHS: /* used for userdraw */
		7059	fprintf(js_include_file,"\n<!-- draw paths -->\n\
8105	schaersvoo	7060	var draw_paths = function(ctx,x_points,y_points,line_width,closed_path,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7061	ctx.save();\
8071	schaersvoo	7062	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7063	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7064	ctx.lineWidth = line_width;\
11088	schaersvoo	7065	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7066	ctx.lineJoin = \"round\";\
		7067	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7068	ctx.beginPath();\
		7069	ctx.moveTo(x_points[0],y_points[0]);\
		7070	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		7071	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		7072	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7073	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		7074	ctx.stroke();\
		7075	ctx.restore();\
		7076	return;\
		7077	};");
8224	bpr	7078
7614	schaersvoo	7079	break;
		7080	case DRAW_ARROWS:/* used for userdraw */
		7081	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
8105	schaersvoo	7082	var draw_arrows = function(ctx,x_points,y_points,arrow_head,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,type,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7083	ctx.save();\
8071	schaersvoo	7084	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7085	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7086	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7087	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7088	ctx.lineWidth = line_width;\
11088	schaersvoo	7089	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7090	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7091	ctx.lineCap = \"round\";\
		7092	var x1,y1,x2,y2,dx,dy,len;\
		7093	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
7874	schaersvoo	7094	ctx.save();\
7614	schaersvoo	7095	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		7096	len = Math.sqrt(dxdx+dydy);\
		7097	ctx.translate(x2,y2);\
		7098	ctx.rotate(Math.atan2(dy,dx));\
		7099	ctx.lineCap = \"round\";\
		7100	ctx.beginPath();\
		7101	ctx.moveTo(0,0);\
		7102	ctx.lineTo(-len,0);\
		7103	ctx.closePath();\
		7104	ctx.stroke();\
		7105	ctx.beginPath();\
		7106	ctx.moveTo(0,0);\
		7107	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		7108	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		7109	ctx.closePath();\
		7110	ctx.fill();\
7874	schaersvoo	7111	ctx.restore();\
7614	schaersvoo	7112	if( type == 2 ){\
		7113	ctx.save();\
		7114	ctx.translate(x1,y1);\
		7115	ctx.rotate(Math.atan2(-dy,-dx));\
		7116	ctx.beginPath();\
		7117	ctx.moveTo(0,0);\
8347	schaersvoo	7118	ctx.lineTo(-1arrow_head,-0.4arrow_head);\
		7119	ctx.lineTo(-1arrow_head, 0.4arrow_head);\
7614	schaersvoo	7120	ctx.closePath();\
		7121	ctx.stroke();\
		7122	ctx.fill();\
7874	schaersvoo	7123	ctx.restore();\
8379	schaersvoo	7124	};\
		7125	};\
7614	schaersvoo	7126	ctx.restore();\
		7127	return;\
7653	schaersvoo	7128	};");
7614	schaersvoo	7129	break;
		7130
		7131	case DRAW_VIDEO:/* not used for userdraw */
		7132	fprintf(js_include_file,"\n<!-- draw video -->\n\
8105	schaersvoo	7133	var draw_video = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	7134	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7135	var video_div = document.createElement(\"div\");\
		7136	canvas_div.appendChild(video_div);\
		7137	video_div.style.position = \"absolute\";\
		7138	video_div.style.left = x+\"px\";\
		7139	video_div.style.top = y+\"px\";\
		7140	video_div.style.width = w+\"px\";\
		7141	video_div.style.height = h+\"px\";\
		7142	var video = document.createElement(\"video\");\
		7143	video_div.appendChild(video);\
		7144	video.style.width = w+\"px\";\
		7145	video.style.height = h+\"px\";\
		7146	video.autobuffer = true;\
		7147	video.controls = true;video.autoplay = false;\
		7148	var src = document.createElement(\"source\");\
		7149	src.type = \"video/mp4\";\
		7150	src.src = URL;\
		7151	video.appendChild(src);\
		7152	video.load();\
		7153	return;\
8224	bpr	7154	};");
7614	schaersvoo	7155	break;
8224	bpr	7156
7614	schaersvoo	7157	case DRAW_AUDIO:/* not used for userdraw */
		7158	fprintf(js_include_file,"\n<!-- draw audio -->\n\
8105	schaersvoo	7159	var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
7614	schaersvoo	7160	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7161	var audio_div = document.createElement(\"div\");\
		7162	canvas_div.appendChild(audio_div);\
		7163	audio_div.style.position = \"absolute\";\
		7164	audio_div.style.left = x+\"px\";\
		7165	audio_div.style.top = y+\"px\";\
		7166	audio_div.style.width = w+\"px\";\
		7167	audio_div.style.height = h+\"px\";\
		7168	var audio = document.createElement(\"audio\");\
		7169	audio_div.appendChild(audio);\
		7170	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		7171	audio.autobuffer = true;\
8379	schaersvoo	7172	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
		7173	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
7614	schaersvoo	7174	var src1 = document.createElement(\"source\");\
		7175	src1.type = \"audio/ogg\";\
		7176	src1.src = URL1;\
		7177	audio.appendChild(src1);\
		7178	var src2 = document.createElement(\"source\");\
		7179	src2.type = \"audio/mpeg\";\
		7180	src2.src = URL2;\
		7181	audio.appendChild(src2);\
		7182	audio.load();\
		7183	return;\
7653	schaersvoo	7184	};");
7614	schaersvoo	7185	break;
8224	bpr	7186
7614	schaersvoo	7187	case DRAW_HTTP:/* not used for userdraw */
		7188	fprintf(js_include_file,"\n<!-- draw http -->\n\
8105	schaersvoo	7189	var draw_http = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	7190	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7191	var http_div = document.createElement(\"div\");\
		7192	var iframe = document.createElement(\"iframe\");\
		7193	canvas_div.appendChild(http_div);\
		7194	http_div.appendChild(iframe);\
		7195	iframe.src = URL;\
		7196	iframe.setAttribute(\"width\",w);\
		7197	iframe.setAttribute(\"height\",h);\
		7198	return;\
7653	schaersvoo	7199	};");
7614	schaersvoo	7200	break;
8224	bpr	7201
11238	schaersvoo	7202	case DRAW_XML: /*
		7203	onclick=1 : click
		7204	onclick=2 drag
		7205	xy:drag_type = 0;
		7206	x: drag_type = 1;
		7207	y: drag_type = 2;
		7208	*/
		7209
7614	schaersvoo	7210	fprintf(js_include_file,"\n<!-- draw xml -->\n\
11756	schaersvoo	7211	var draw_xml = function(canvas_root_id,x,y,mathml,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity){\
7614	schaersvoo	7212	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7213	var xml_div = document.createElement(\"div\");\
		7214	canvas_div.appendChild(xml_div);\
		7215	xml_div.innerHTML = mathml;\
8379	schaersvoo	7216	xml_div.style.color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11745	schaersvoo	7217	var color_org = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11756	schaersvoo	7218	var back_color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		7219	var no_color = \"rgba(255,255,255,0)\";\
		7220	xml_div.style.position = \"absolute\"; xml_div.style.left = x+\"px\";xml_div.style.top = y+\"px\";\
11745	schaersvoo	7221	var dragging = false;\
11747	schaersvoo	7222	if( onclick == 2 ){reply[click_cnt] = px2x(x)+','+px2y(y);};\
		7223	if( onclick == 1 ){reply[click_cnt] = 0;};\
		7224	if( onclick == 2 ){\
		7225	xml_div.onclick = function(){\
11756	schaersvoo	7226	canvas_div.onclick = function(evt){if(dragging){dragging = false;xml_div.style.color = color_org; xml_div.style.backgroundColor = no_color;}else{dragging = true;xml_div.style.color = 'red';xml_div.style.backgroundColor = back_color;};};\
11747	schaersvoo	7227	canvas_div.onmousemove = function(evt){\
		7228	if(!dragging){return;};\
		7229	var x1;var y1;\
		7230	var mouse = dragstuff.getMouse(evt,xml_div);\
		7231	switch(drag_type){\
		7232	case 0: x1 = mouse.x;y1 = mouse.y;break;\
		7233	case 1: x1 = mouse.x;y1 = y;break;\
		7234	case 2: x1 = x;y1 = mouse.y;break;\
		7235	default:x1 = x;y1 = y; break;\
		7236	};\
		7237	if( x_use_snap_to_grid == 1 ){ x1 = snap_to_x(x1);};\
		7238	if( y_use_snap_to_grid == 1 ){ y1 = snap_to_y(y1);};\
		7239	if( use_snap_to_points != 0 ){ var xy = new Array(2);if( use_snap_to_points == 1 ){xy = snap_to_points(x1,y1);}else{xy = snap_to_fun(x1,y1);};x1 = xy[0];y1 = xy[1];};\
		7240	xml_div.style.left = x1 + 'px';xml_div.style.top = y1 + 'px';\
		7241	reply[click_cnt] = px2x(x1)+','+px2y(y1);\
11238	schaersvoo	7242	};\
7614	schaersvoo	7243	};\
11238	schaersvoo	7244	};\
		7245	if(onclick == 1){\
11747	schaersvoo	7246	xml_div.onclick = function(){\
11756	schaersvoo	7247	if(reply[click_cnt] == 0){ reply[click_cnt] = 1; xml_div.style.color = 'red';xml_div.style.backgroundColor = back_color;}else{reply[click_cnt] = 0;xml_div.style.color = color_org;xml_div.style.backgroundColor = no_color;};};\
7614	schaersvoo	7248	};\
		7249	return;\
11745	schaersvoo	7250	};");
7614	schaersvoo	7251	break;
7654	schaersvoo	7252	case DRAW_SGRAPH:
8224	bpr	7253	/*
7654	schaersvoo	7254	xstart = given
		7255	ystart = given
		7256	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		7257	*/
		7258	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
8105	schaersvoo	7259	var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
7658	schaersvoo	7260	var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{ obj = create_canvas%d(canvas_type,xsize,ysize);};\
		7261	var ctx = obj.getContext(\"2d\");\
		7262	ctx.font = fontfamily;\
		7263	var minor_opacity = 0.8*opacity;\
		7264	ctx.clearRect(0,0,xsize,ysize);\
7976	schaersvoo	7265	var zero_x = 0.1*xsize;\
		7266	var zero_y = 0.9*ysize;\
8129	schaersvoo	7267	var snor_x;var snor_y;\
7654	schaersvoo	7268	if( xstart != xmin){\
7658	schaersvoo	7269	snor_x = 0.1*xsize;\
		7270	}\
		7271	else\
		7272	{\
		7273	snor_x = 0;\
		7274	xstart = xmin;\
		7275	};\
		7276	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		7277	ctx.lineWidth = 2;\
		7278	ctx.beginPath();\
		7279	ctx.moveTo(xsize,zero_y);\
		7280	ctx.lineTo(zero_x,zero_y);\
		7281	ctx.lineTo(zero_x,0);\
		7282	ctx.stroke();\
		7283	ctx.closePath();\
		7284	ctx.beginPath();\
		7285	ctx.moveTo(zero_x,zero_y);\
		7286	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		7287	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		7288	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		7289	ctx.lineTo(zero_x + snor_x,zero_y);\
		7290	ctx.stroke();\
		7291	ctx.closePath();\
		7292	ctx.beginPath();\
		7293	var num = xstart;\
7660	schaersvoo	7294	var flipflop = 1;\
7658	schaersvoo	7295	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
7976	schaersvoo	7296	var txtsize;var txt_marge=step_x - 5;\
7658	schaersvoo	7297	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7976	schaersvoo	7298	txtsize = ctx.measureText(num).width;\
		7299	if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
		7300	if( flipflop == 1){\
		7301	ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
		7302	}\
		7303	else\
		7304	{\
		7305	ctx.fillText(num,x - 0.5txtsize,zero_y+2font_size);\
8379	schaersvoo	7306	};\
7976	schaersvoo	7307	num = num + xmajor;\
7658	schaersvoo	7308	};\
		7309	ctx.stroke();\
		7310	ctx.closePath();\
		7311	ctx.lineWidth = 1;\
		7312	ctx.beginPath();\
		7313	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		7314	ctx.moveTo(x,zero_y);\
		7315	ctx.lineTo(x,0);\
		7316	};\
		7317	ctx.stroke();\
		7318	ctx.closePath();\
		7319	if( xminor > 1){\
		7320	ctx.lineWidth = 0.5;\
		7321	ctx.beginPath();\
		7322	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		7323	var minor_step_x = step_x / xminor;\
		7324	var nx;\
		7325	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		7326	num = 1;\
		7327	for(var p = 1 ; p < xminor ; p++){\
		7328	nx = x + num*minor_step_x;\
		7329	ctx.moveTo(nx,zero_y);\
		7330	ctx.lineTo(nx,0);\
		7331	num++;\
		7332	};\
		7333	};\
		7334	ctx.stroke();\
		7335	ctx.closePath();\
		7336	ctx.beginPath();\
		7337	ctx.lineWidth = 2;\
		7338	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		7339	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		7340	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		7341	};\
		7342	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		7343	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		7344	};\
		7345	ctx.stroke();\
		7346	ctx.closePath();\
		7347	ctx.lineWidth = 0.5;\
		7348	};\
		7349	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		7350	if( ystart != ymin){\
		7351	snor_y = 0.1*ysize;\
		7352	}\
		7353	else\
		7354	{\
		7355	snor_y = 0;\
		7356	ystart = ymin;\
		7357	};\
		7358	ctx.lineWidth = 2;\
		7359	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		7360	ctx.beginPath();\
		7361	ctx.moveTo(zero_x,zero_y);\
		7362	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		7363	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		7364	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		7365	ctx.lineTo(zero_x,zero_y - snor_y);\
		7366	ctx.stroke();\
		7367	ctx.closePath();\
		7368	ctx.beginPath();\
		7369	ctx.lineWidth = 1;\
		7370	num = ystart;\
		7371	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		7372	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		7373	ctx.moveTo(zero_x,y);\
		7374	ctx.lineTo(xsize,y);\
		7375	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		7376	num = num + ymajor;\
		7377	};\
		7378	ctx.stroke();\
		7379	ctx.closePath();\
		7380	if( yminor > 1){\
		7381	ctx.lineWidth = 0.5;\
		7382	ctx.beginPath();\
		7383	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		7384	var minor_step_y = step_y / yminor;\
		7385	var ny;\
		7386	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		7387	num = 1;\
		7388	for(var p = 1 ;p < yminor;p++){\
		7389	ny = y + num*minor_step_y;\
		7390	ctx.moveTo(zero_x,ny);\
		7391	ctx.lineTo(xsize,ny);\
		7392	num++;\
		7393	};\
		7394	};\
		7395	ctx.stroke();\
		7396	ctx.closePath();\
		7397	ctx.lineWidth = 2;\
		7398	ctx.beginPath();\
		7399	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		7400	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		7401	ctx.moveTo(zero_x,y);\
		7402	ctx.lineTo(zero_x+12,y);\
		7403	};\
		7404	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		7405	ctx.moveTo(zero_x,y);\
		7406	ctx.lineTo(zero_x+6,y);\
		7407	};\
		7408	ctx.stroke();\
		7409	ctx.closePath();\
		7410	};\
		7411	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
11088	schaersvoo	7412	if( typeof(legend%d) !== 'undefined' ){\
7654	schaersvoo	7413	ctx.globalAlpha = 1.0;\
		7414	var y_offset = 2*font_size;\
		7415	var txt;var txt_size;\
		7416	var x_offset = xsize - 2*font_size;\
		7417	var l_length = legend%d.length;var barcolor = new Array();\
11088	schaersvoo	7418	if( typeof(legendcolors%d) !== 'undefined' ){\
7654	schaersvoo	7419	for(var p = 0 ; p < l_length ; p++){\
		7420	barcolor[p] = legendcolors%d[p];\
		7421	};\
		7422	}else{\
		7423	if( barcolor.length == 0 ){\
		7424	for(var p = 0 ; p < l_length ; p++){\
		7425	barcolor[p] = stroke_color;\
		7426	};\
		7427	};\
		7428	};\
		7429	for(var p = 0; p < l_length; p++){\
		7430	ctx.fillStyle = barcolor[p];\
		7431	txt = legend%d[p];\
		7432	txt_size = ctx.measureText(txt).width;\
		7433	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		7434	y_offset = parseInt(y_offset + 1.5*font_size);\
		7435	};\
		7436	};\
11088	schaersvoo	7437	if( typeof(xaxislabel) !== 'undefined' ){\
7658	schaersvoo	7438	ctx.fillStyle = \'#000000\';\
		7439	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		7440	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		7441	};\
11088	schaersvoo	7442	if( typeof(yaxislabel) !== 'undefined'){\
7658	schaersvoo	7443	ctx.save();\
		7444	ctx.fillStyle = \'#000000\';\
		7445	var txt_size = ctx.measureText(yaxislabel).width;\
		7446	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		7447	ctx.rotate(-0.5*Math.PI);\
		7448	ctx.fillText(yaxislabel,0,0);\
7874	schaersvoo	7449	ctx.restore();\
7658	schaersvoo	7450	};\
7654	schaersvoo	7451	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		7452	break;
7614	schaersvoo	7453
		7454	case DRAW_GRID:/* not used for userdraw */
		7455	fprintf(js_include_file,"\n<!-- draw grid -->\n\
8105	schaersvoo	7456	var draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
7988	schaersvoo	7457	var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{obj = create_canvas%d(canvas_type,xsize,ysize);};\
		7458	var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
7614	schaersvoo	7459	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7460	ctx.save();\
8071	schaersvoo	7461	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	7462	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		7463	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7464	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		7465	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		7466	ctx.font = font_family;\
7988	schaersvoo	7467	var barcolor = new Array();\
7614	schaersvoo	7468	var xstep = xsize*xmajor/(xmax - xmin);\
		7469	var ystep = ysize*ymajor/(ymax - ymin);\
		7470	var x2step = xstep / xminor;\
		7471	var y2step = ystep / yminor;\
7996	schaersvoo	7472	var zero_x = x2px(0);;var zero_y = y2px(0);var f_x;var f_y;\
		7473	if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;}\
		7474	if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;}\
11088	schaersvoo	7475	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7476	ctx.beginPath();\
		7477	ctx.lineWidth = line_width;\
		7478	ctx.strokeStyle = stroke_color;\
		7479	for(var p = zero_x ; p < xsize; p = p + xstep){\
		7480	ctx.moveTo(p,0);\
		7481	ctx.lineTo(p,ysize);\
		7482	};\
		7483	for(var p = zero_x ; p > 0; p = p - xstep){\
		7484	ctx.moveTo(p,0);\
		7485	ctx.lineTo(p,ysize);\
		7486	};\
		7487	for(var p = zero_y ; p < ysize; p = p + ystep){\
		7488	ctx.moveTo(0,p);\
		7489	ctx.lineTo(xsize,p);\
		7490	};\
		7491	for(var p = zero_y ; p > 0; p = p - ystep){\
		7492	ctx.moveTo(0,p);\
		7493	ctx.lineTo(xsize,p);\
		7494	};\
11088	schaersvoo	7495	if( typeof(xaxislabel) !== 'undefined' ){\
7614	schaersvoo	7496	ctx.save();\
		7497	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		7498	var corr = ctx.measureText(xaxislabel).width;\
		7499	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		7500	ctx.restore();\
		7501	};\
11088	schaersvoo	7502	if( typeof(yaxislabel) !== 'undefined' ){\
7614	schaersvoo	7503	ctx.save();\
		7504	ctx.font = \"italic \"+font_size+\"px Ariel\";\
7988	schaersvoo	7505	var corr = ctx.measureText(yaxislabel).width;\
7614	schaersvoo	7506	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		7507	ctx.rotate(-0.5*Math.PI);\
		7508	ctx.fillText(yaxislabel,0,0);\
		7509	ctx.restore();\
		7510	};\
		7511	ctx.stroke();\
		7512	ctx.closePath();\
		7513	if( use_axis == 1 ){\
7988	schaersvoo	7514	ctx.save();\
7614	schaersvoo	7515	ctx.beginPath();\
		7516	ctx.strokeStyle = stroke_color;\
		7517	ctx.lineWidth = 0.6*line_width;\
		7518	for(var p = zero_x ; p < xsize; p = p + x2step){\
		7519	ctx.moveTo(p,0);\
		7520	ctx.lineTo(p,ysize);\
		7521	};\
		7522	for(var p = zero_x ; p > 0; p = p - x2step){\
		7523	ctx.moveTo(p,0);\
		7524	ctx.lineTo(p,ysize);\
		7525	};\
		7526	for(var p = zero_y ; p < ysize; p = p + y2step){\
		7527	ctx.moveTo(0,p);\
		7528	ctx.lineTo(xsize,p);\
		7529	};\
		7530	for(var p = zero_y ; p > 0; p = p - y2step){\
		7531	ctx.moveTo(0,p);\
		7532	ctx.lineTo(xsize,p);\
		7533	};\
		7534	ctx.stroke();\
		7535	ctx.closePath();\
		7536	ctx.beginPath();\
		7537	ctx.lineWidth = 2*line_width;\
		7538	ctx.strokeStyle = axis_color;\
		7539	ctx.moveTo(0,zero_y);\
		7540	ctx.lineTo(xsize,zero_y);\
		7541	ctx.moveTo(zero_x,0);\
		7542	ctx.lineTo(zero_x,ysize);\
		7543	ctx.stroke();\
		7544	ctx.closePath();\
		7545	ctx.lineWidth = line_width+0.5;\
		7546	ctx.beginPath();\
		7547	for(var p = zero_x ; p < xsize; p = p + xstep){\
		7548	ctx.moveTo(p,zero_y-tics_length);\
		7549	ctx.lineTo(p,zero_y+tics_length);\
		7550	};\
		7551	for(var p = zero_x ; p > 0; p = p - xstep){\
		7552	ctx.moveTo(p,zero_y-tics_length);\
		7553	ctx.lineTo(p,zero_y+tics_length);\
		7554	};\
		7555	for(var p = zero_y ; p < ysize; p = p + ystep){\
		7556	ctx.moveTo(zero_x-tics_length,p);\
		7557	ctx.lineTo(zero_x+tics_length,p);\
		7558	};\
		7559	for(var p = zero_y ; p > 0; p = p - ystep){\
		7560	ctx.moveTo(zero_x-tics_length,p);\
		7561	ctx.lineTo(zero_x+tics_length,p);\
		7562	};\
		7563	for(var p = zero_x ; p < xsize; p = p + x2step){\
		7564	ctx.moveTo(p,zero_y-0.5*tics_length);\
		7565	ctx.lineTo(p,zero_y+0.5*tics_length);\
		7566	};\
		7567	for(var p = zero_x ; p > 0; p = p - x2step){\
		7568	ctx.moveTo(p,zero_y-0.5*tics_length);\
		7569	ctx.lineTo(p,zero_y+0.5*tics_length);\
		7570	};\
		7571	for(var p = zero_y ; p < ysize; p = p + y2step){\
		7572	ctx.moveTo(zero_x-0.5*tics_length,p);\
		7573	ctx.lineTo(zero_x+0.5*tics_length,p);\
		7574	};\
		7575	for(var p = zero_y ; p > 0; p = p - y2step){\
		7576	ctx.moveTo(zero_x-0.5*tics_length,p);\
		7577	ctx.lineTo(zero_x+0.5*tics_length,p);\
		7578	};\
		7579	ctx.stroke();\
		7580	ctx.closePath();\
7988	schaersvoo	7581	ctx.restore();\
		7582	};\
		7583	if( use_axis_numbering == 1 ){\
		7584	ctx.save();\
		7585	ctx.fillColor = axis_color;\
8110	schaersvoo	7586	ctx.strokeStyle = axis_color;\
		7587	ctx.lineWidth = 2*line_width;\
7988	schaersvoo	7588	ctx.font = font_family;\
		7589	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		7590	if( x_strings != null ){\
		7591	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	7592	ctx.beginPath();\
9341	schaersvoo	7593	if( x_strings_up == null){\
		7594	for(var p = 0 ; p < len ; p = p+2){\
		7595	var x_nums = x2px(eval(x_strings[p]));\
		7596	var x_text = x_strings[p+1];\
		7597	corr = ctx.measureText(x_text).width;\
		7598	skip = 1.2*corr/xstep;\
		7599	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		7600	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		7601	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
		7602	ctx.moveTo(x_nums,zero_y - tics_length);\
		7603	ctx.lineTo(x_nums,zero_y + tics_length);\
		7604	};\
		7605	}\
		7606	else\
		7607	{\
		7608	for(var p = 0 ; p < len ; p = p+2){\
		7609	var x_nums = x2px(eval(x_strings[p]));\
		7610	var x_text = x_strings[p+1];\
		7611	corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
		7612	if( corr > ysize ){corr = ysize;};\
		7613	ctx.save();\
9346	schaersvoo	7614	ctx.translate(x_nums+0.25*font_size, corr);\
9341	schaersvoo	7615	ctx.rotate(-1.5708);\
		7616	ctx.fillText(x_text,0,0);\
		7617	ctx.restore();\
		7618	ctx.moveTo(x_nums,zero_y - tics_length);\
		7619	ctx.lineTo(x_nums,zero_y + tics_length);\
		7620	};\
7988	schaersvoo	7621	};\
8110	schaersvoo	7622	ctx.closePath();\
7988	schaersvoo	7623	}\
		7624	else\
		7625	{\
		7626	skip = 1;cnt = px2x(zero_x);\
		7627	prec = Math.log(precision)/(Math.log(10));\
		7628	var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
		7629	for( var p = zero_x ; p < xsize ; p = p+xstep){\
		7630	if(skip == 0 ){\
7990	schaersvoo	7631	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	7632	corr = ctx.measureText(disp_cnt).width;\
		7633	skip = parseInt(1.2*corr/xstep);\
		7634	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
7614	schaersvoo	7635	}\
7988	schaersvoo	7636	else\
		7637	{\
		7638	skip--;\
7614	schaersvoo	7639	};\
7988	schaersvoo	7640	cnt = cnt + xmajor;\
7614	schaersvoo	7641	};\
7988	schaersvoo	7642	cnt = px2x(zero_x);skip = 1;\
		7643	for( var p = zero_x ; p > 0 ; p = p-xstep){\
		7644	if(skip == 0 ){\
7990	schaersvoo	7645	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	7646	corr = ctx.measureText(disp_cnt).width;\
		7647	skip = parseInt(1.2*corr/xstep);\
		7648	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
		7649	}\
		7650	else\
		7651	{\
		7652	skip--;\
7614	schaersvoo	7653	};\
7988	schaersvoo	7654	cnt = cnt - xmajor;\
7614	schaersvoo	7655	};\
		7656	};\
7988	schaersvoo	7657	if( y_strings != null ){\
		7658	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	7659	ctx.beginPath();\
7988	schaersvoo	7660	for(var p = 0 ; p < len ; p = p+2){\
		7661	var y_nums = y2px(eval(y_strings[p]));\
		7662	var y_text = y_strings[p+1];\
		7663	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		7664	if( corr > zero_x){corr = parseInt(zero_x+2); }\
8110	schaersvoo	7665	ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
		7666	ctx.moveTo(zero_x - tics_length,y_nums);\
		7667	ctx.lineTo(zero_x + tics_length,y_nums);\
7614	schaersvoo	7668	};\
8110	schaersvoo	7669	ctx.closePath();\
7988	schaersvoo	7670	}\
		7671	else\
		7672	{\
7991	schaersvoo	7673	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	7674	cnt = px2y(zero_y);skip = 1;\
		7675	for( var p = zero_y ; p < ysize ; p = p+ystep){\
		7676	if(skip == 0 ){\
		7677	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	7678	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	7679	if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		7680	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		7681	}\
		7682	else\
		7683	{\
		7684	skip--;\
		7685	};\
		7686	cnt = cnt - ymajor;\
7614	schaersvoo	7687	};\
7988	schaersvoo	7688	corr = 0;cnt = px2y(zero_y);skip = 1;\
7991	schaersvoo	7689	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	7690	for( var p = zero_y ; p > 0 ; p = p-ystep){\
		7691	if(skip == 0 ){\
		7692	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	7693	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	7694	if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		7695	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		7696	}\
		7697	else\
		7698	{\
		7699	skip--;\
		7700	};\
		7701	cnt = cnt + ymajor;\
7614	schaersvoo	7702	};\
		7703	};\
7988	schaersvoo	7704	ctx.stroke();\
7614	schaersvoo	7705	ctx.restore();\
		7706	};\
11088	schaersvoo	7707	if( typeof(legend0) !== 'undefined' ){\
7988	schaersvoo	7708	ctx.save();\
7614	schaersvoo	7709	ctx.globalAlpha = 1.0;\
		7710	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		7711	var y_offset = 2*font_size;\
		7712	var txt;var txt_size;\
		7713	var x_offset = xsize - 2*font_size;\
7956	schaersvoo	7714	var l_length = legend0.length;\
11088	schaersvoo	7715	if( typeof(legendcolors0) !== 'undefined' ){\
7614	schaersvoo	7716	for(var p = 0 ; p < l_length ; p++){\
7956	schaersvoo	7717	barcolor[p] = legendcolors0[p];\
7614	schaersvoo	7718	};\
7988	schaersvoo	7719	}\
		7720	else\
		7721	{\
7614	schaersvoo	7722	if( barcolor.length == 0 ){\
		7723	for(var p = 0 ; p < l_length ; p++){\
		7724	barcolor[p] = stroke_color;\
		7725	};\
		7726	};\
		7727	};\
		7728	for(var p = 0; p < l_length; p++){\
		7729	ctx.fillStyle = barcolor[p];\
7956	schaersvoo	7730	txt = legend0[p];\
7614	schaersvoo	7731	txt_size = ctx.measureText(txt).width;\
7956	schaersvoo	7732	ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
7614	schaersvoo	7733	y_offset = parseInt(y_offset + 1.5*font_size);\
		7734	};\
7988	schaersvoo	7735	ctx.restore();\
7614	schaersvoo	7736	};\
11088	schaersvoo	7737	if( typeof(barchart_0) !== 'undefined' ){\
7991	schaersvoo	7738	ctx.save();\
		7739	var num_barcharts = 0;\
		7740	var bar_name = eval('barchart_0');\
11088	schaersvoo	7741	while( typeof(bar_name) !== 'undefined' ){\
7991	schaersvoo	7742	try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
		7743	};\
9346	schaersvoo	7744	var bar_width = parseInt(0.8*x2step/(num_barcharts));\
7991	schaersvoo	7745	for(var i=0 ; i< num_barcharts ; i++){\
		7746	bar_name = eval('barchart_'+i);\
		7747	var bar_x = new Array();\
		7748	var bar_y = new Array();\
		7749	var lb = bar_name.length;\
		7750	var idx = 0;\
		7751	var dx = parseInt(0.5ibar_width);\
		7752	for( var p = 0 ; p < lb ; p = p + 3 ){\
		7753	bar_x[idx] = x2px(bar_name[p]);\
		7754	bar_y[idx] = y2px(bar_name[p+1]);\
		7755	barcolor[idx] = bar_name[p+2];\
		7756	idx++;\
		7757	};\
		7758	ctx.globalAlpha = fill_opacity;\
		7759	for( var p = 0; p < idx ; p++ ){\
11739	schaersvoo	7760	ctx.beginPath();\
7991	schaersvoo	7761	ctx.strokeStyle = barcolor[p];\
		7762	ctx.fillStyle = barcolor[p];\
9346	schaersvoo	7763	ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
11739	schaersvoo	7764	ctx.fill();\
		7765	ctx.stroke();\
		7766	ctx.closePath();\
7991	schaersvoo	7767	};\
		7768	};\
		7769	ctx.restore();\
		7770	};\
11088	schaersvoo	7771	if( typeof(linegraph_0) !== 'undefined' ){\
7996	schaersvoo	7772	ctx.save();\
		7773	ctx.globalAlpha = 1.0;\
		7774	var i = 0;\
		7775	var line_name = eval('linegraph_'+i);\
11088	schaersvoo	7776	while ( typeof(line_name) !== 'undefined' ){\
7996	schaersvoo	7777	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		7778	ctx.lineWidth = parseInt(line_name[1]);\
		7779	if(line_name[2] == \"1\"){\
		7780	var d1 = parseInt(line_name[3]);\
		7781	var d2 = parseInt(line_name[4]);\
		7782	if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
		7783	}\
		7784	else\
		7785	{\
		7786	if(ctx.setLineDash){ctx.setLineDash = null;}\
		7787	if(ctx.mozDash){ctx.mozDash = null;}\
		7788	};\
		7789	var data_x = new Array();\
		7790	var data_y = new Array();\
		7791	var lb = line_name.length;\
		7792	var idx = 0;\
		7793	for( var p = 5 ; p < lb ; p = p + 2 ){\
		7794	data_x[idx] = x2px(line_name[p]);\
		7795	data_y[idx] = y2px(line_name[p+1]);\
		7796	idx++;\
		7797	};\
		7798	for( var p = 0; p < idx ; p++){\
		7799	ctx.beginPath();\
		7800	ctx.moveTo(data_x[p],data_y[p]);\
		7801	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		7802	ctx.stroke();\
		7803	ctx.closePath();\
		7804	};\
		7805	i++;\
		7806	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		7807	};\
		7808	ctx.restore();\
		7809	};\
7614	schaersvoo	7810	return;\
7989	schaersvoo	7811	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	7812	break;
8224	bpr	7813
7614	schaersvoo	7814	case DRAW_PIECHART:
7987	schaersvoo	7815	fprintf(js_include_file,"\n<!-- draw piecharts -->\n\
7956	schaersvoo	7816	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family){\
7614	schaersvoo	7817	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		7818	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		7819	}\
		7820	else\
		7821	{\
		7822	obj = create_canvas%d(canvas_type,xsize,ysize);\
		7823	};\
		7824	var ld = data_color_list.length;\
		7825	var sum = 0;\
		7826	var idx = 0;\
7956	schaersvoo	7827	var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
7614	schaersvoo	7828	var colors = new Array();\
		7829	var data = new Array();\
		7830	for(var p = 0;p < ld; p = p + 2){\
		7831	data[idx] = parseFloat(data_color_list[p]);\
		7832	sum = sum + data[idx];\
		7833	colors[idx] = data_color_list[p+1];\
		7834	idx++;\
		7835	};\
		7836	var ctx = obj.getContext(\"2d\");\
		7837	ctx.save();\
		7838	var angle;\
		7839	var angle_end = 0;\
		7840	var offset = Math.PI / 2;\
		7841	ctx.globalAlpha = fill_opacity;\
		7842	for(var p=0; p < idx; p++){\
		7843	ctx.beginPath();\
		7844	ctx.fillStyle = colors[p];\
		7845	ctx.moveTo(x_center,y_center);\
		7846	angle = Math.PI * (2 * data[p] / sum);\
		7847	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		7848	ctx.lineTo(x_center, y_center);\
		7849	ctx.fill();\
		7850	ctx.closePath();\
		7851	angle_end = angle_end + angle;\
		7852	};\
11088	schaersvoo	7853	if(typeof(legend0) !== 'undefined'){\
7956	schaersvoo	7854	var legenda = eval(\"legend\"+legend_cnt);\
7614	schaersvoo	7855	ctx.globalAlpha = 1.0;\
7956	schaersvoo	7856	ctx.font = font_family;\
7614	schaersvoo	7857	var y_offset = font_size; \
		7858	var x_offset = 0;\
		7859	var txt;var txt_size;\
		7860	for(var p = 0; p < idx; p++){\
		7861	ctx.fillStyle = colors[p];\
7956	schaersvoo	7862	txt = legenda[p];\
7614	schaersvoo	7863	txt_size = ctx.measureText(txt).width;\
		7864	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
7956	schaersvoo	7865	ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
7614	schaersvoo	7866	y_offset = parseInt(y_offset + 1.5*font_size);\
		7867	};\
		7868	};\
		7869	ctx.restore();\
7956	schaersvoo	7870	};",canvas_root_id,canvas_root_id,canvas_root_id);
8224	bpr	7871
7614	schaersvoo	7872	break;
9433	schaersvoo	7873	case DRAW_JSBOXPLOT:
		7874	fprintf(js_include_file,"\n<!-- draw jsboxplots -->\n\
		7875	function statistics(data){\
		7876	var len = data.length;\
		7877	var min = 10000000;\
		7878	var max = -10000000;\
		7879	var sum = 0;var d;\
		7880	for(var i=0;i<len;i++){\
		7881	d = data[i];\
		7882	if(d < min){min = d;}else{if(d > max){max = d;};};\
		7883	sum+= parseFloat(data[i]);\
		7884	};\
		7885	var mean = parseFloat(sum/len);\
		7886	var variance = 0;\
		7887	for(var i=0;i<len;i++){\
		7888	d = data[i];\
		7889	variance += (d - mean)*(d - mean);\
		7890	};\
		7891	variance = parseFloat(variance / len);\
		7892	var std = Math.sqrt(variance);\
		7893	data.sort(function(a,b){return a - b;});\
		7894	var median;var Q1;var Q3;\
		7895	var half = Math.floor(0.5*len);\
		7896	var q1 = Math.floor(0.25*len);\
		7897	var q3 = Math.floor(0.75*len);\
		7898	var half = Math.floor(0.5*len);\
		7899	if(len %%2 == 1){\
		7900	median = data[half];\
		7901	Q1 = data[q1];\
		7902	Q3 = data[q3];\
		7903	}\
		7904	else\
		7905	{\
		7906	median = (data[half - 1] + data[half] )/2;\
		7907	Q1 = (data[q1 - 1] + data[q1] )/2;\
		7908	Q3 = (data[q3 - 1] + data[q3] )/2;\
		7909	};\
		7910	return [min,Q1,median,Q3,max];\
		7911	};");
		7912	break;
		7913	case DRAW_BOXPLOT:
		7914	fprintf(js_include_file,"\n<!-- draw boxplots -->\n\
9465	schaersvoo	7915	draw_boxplot = function(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1){\
9433	schaersvoo	7916	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		7917	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		7918	}\
		7919	else\
		7920	{\
		7921	obj = create_canvas%d(canvas_type,xsize,ysize);\
		7922	};\
		7923	var ctx = obj.getContext(\"2d\");\
		7924	ctx.clearRect(0,0,xsize,ysize);\
		7925	ctx.save();\
		7926	ctx.lineWidth = line_width;\
11088	schaersvoo	7927	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
9433	schaersvoo	7928	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7929	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		7930	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
		7931	var hh = 0.25*hw;\
9465	schaersvoo	7932	switch(boxplot_source){\
11088	schaersvoo	7933	case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
		7934	case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
		7935	case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
9465	schaersvoo	7936	default: break;\
9433	schaersvoo	7937	};\
		7938	var min,Q1,median,Q3,max;\
		7939	if(xy == 1 ){\
		7940	min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
		7941	hh = Math.abs(y2px(hh) - y2px(ystart));\
		7942	hw = Math.abs(y2px(hw) - y2px(ystart));\
		7943	cxy = y2px(cxy);\
9465	schaersvoo	7944	ctx.beginPath();\
9433	schaersvoo	7945	ctx.moveTo(min,cxy);\
		7946	ctx.lineTo(Q1,cxy);\
		7947	ctx.moveTo(Q3,cxy);\
		7948	ctx.lineTo(max,cxy);\
		7949	ctx.moveTo(min,cxy+hh);\
		7950	ctx.lineTo(min,cxy-hh);\
		7951	ctx.moveTo(max,cxy+hh);\
		7952	ctx.lineTo(max,cxy-hh);\
9465	schaersvoo	7953	ctx.closePath();\
		7954	ctx.stroke();\
		7955	ctx.beginPath();\
9433	schaersvoo	7956	ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
9465	schaersvoo	7957	ctx.closePath();\
		7958	if( use_filled == 1 ){\
		7959	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+fill_opacity+\")\";\
		7960	ctx.fill();\
		7961	};\
		7962	ctx.stroke();\
		7963	ctx.beginPath();\
9433	schaersvoo	7964	ctx.rect(median,cxy-2*hh,Q3-median,hw);\
9465	schaersvoo	7965	ctx.closePath();\
		7966	if( use_filled == 1 ){\
		7967	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		7968	ctx.fill();\
		7969	};\
		7970	ctx.stroke();\
9433	schaersvoo	7971	}else{\
		7972	min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
		7973	hh = Math.abs(x2px(hh) - x2px(xstart));\
		7974	hw = Math.abs(x2px(hw) - x2px(xstart));\
		7975	cxy = x2px(cxy);\
9465	schaersvoo	7976	ctx.beginPath();\
9433	schaersvoo	7977	ctx.moveTo(cxy,min);\
		7978	ctx.lineTo(cxy,Q1);\
		7979	ctx.moveTo(cxy,Q3);\
		7980	ctx.lineTo(cxy,max);\
		7981	ctx.moveTo(cxy + hh,min);\
		7982	ctx.lineTo(cxy - hh,min);\
		7983	ctx.moveTo(cxy + hh,max);\
		7984	ctx.lineTo(cxy - hh,max);\
9465	schaersvoo	7985	ctx.closePath;\
		7986	ctx.stroke();\
		7987	ctx.beginPath();\
9433	schaersvoo	7988	ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
9465	schaersvoo	7989	ctx.closePath();\
		7990	if( use_filled == 1 ){\
		7991	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+fill_opacity+\")\";\
		7992	ctx.fill();\
		7993	};\
		7994	ctx.stroke();\
		7995	ctx.beginPath();\
9433	schaersvoo	7996	ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
9465	schaersvoo	7997	ctx.closePath();\
		7998	if( use_filled == 1 ){\
		7999	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		8000	ctx.fill();\
		8001	};\
		8002	ctx.stroke();\
9433	schaersvoo	8003	};\
		8004	ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
		8005	break;
7614	schaersvoo	8006	case DRAW_ARCS:
		8007	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
8105	schaersvoo	8008	var draw_arc = function(ctx,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	8009	ctx.save();\
		8010	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
8071	schaersvoo	8011	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	8012	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		8013	if(end < start){var tmp = end;end = start;start=tmp;};\
8071	schaersvoo	8014	start = 360 - start;\
		8015	end = 360 - end;\
7614	schaersvoo	8016	ctx.lineWidth = line_width;\
11088	schaersvoo	8017	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	8018	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
8071	schaersvoo	8019	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		8020	ctx.beginPath();\
		8021	ctx.moveTo(xc,yc);\
		8022	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		8023	ctx.lineTo(xc,yc);\
		8024	ctx.closePath();\
7614	schaersvoo	8025	if( use_filled == 1 ){\
		8026	ctx.fill();\
8071	schaersvoo	8027	};\
		8028	ctx.stroke();\
7614	schaersvoo	8029	ctx.restore();\
8071	schaersvoo	8030	};");
8224	bpr	8031
7614	schaersvoo	8032	break;
7983	schaersvoo	8033	case DRAW_CENTERSTRING:
		8034	fprintf(js_include_file,"\n<!-- draw centerstring -->\n\
8105	schaersvoo	8035	var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
7983	schaersvoo	8036	var obj;\
		8037	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8038	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8039	}\
		8040	else\
		8041	{\
		8042	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8043	};\
		8044	var ctx = obj.getContext(\"2d\");\
		8045	ctx.save();\
9481	schaersvoo	8046	ctx.clearRect(0,0,xsize,ysize);\
7983	schaersvoo	8047	ctx.font = font_family;\
		8048	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8049	var stringwidth = ctx.measureText(text).width;\
		8050	var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
		8051	ctx.fillText(text,x,y2px(y));\
9481	schaersvoo	8052	ctx.restore();\
7983	schaersvoo	8053	return;\
		8054	};",canvas_root_id,canvas_root_id,canvas_root_id);
		8055	break;
7614	schaersvoo	8056	case DRAW_TEXTS:
		8057	fprintf(js_include_file,"\n<!-- draw text -->\n\
11811	schaersvoo	8058	var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_affine,affine_matrix,use_offset){\
7614	schaersvoo	8059	var obj;\
		8060	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8061	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8062	}\
		8063	else\
		8064	{\
		8065	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8066	};\
		8067	var ctx = obj.getContext(\"2d\");\
9868	schaersvoo	8068	if( font_family != 'null' ){\
		8069	ctx.font = font_family;\
		8070	}\
		8071	else\
		8072	{\
		8073	ctx.font = font_size+'px Ariel';\
		8074	};\
11811	schaersvoo	8075	if( use_offset == 3 ){\
		8076	y = y + (Math.sin(angle2))*(ctx.measureText(text).width);\
		8077	x = x - (Math.cos(angle2))*(ctx.measureText(text).width);\
		8078	};\
7614	schaersvoo	8079	if(angle2 == 0 && angle != 0){\
		8080	ctx.save();\
8071	schaersvoo	8081	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
11811	schaersvoo	8082	if(use_rotate == 1 ){\
		8083	ctx.rotate(angle*Math.PI/180);};\
7614	schaersvoo	8084	};\
		8085	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8086	if(angle2 != 0){\
		8087	ctx.save();\
		8088	ctx.translate(x,y);\
		8089	ctx.rotate((360-angle2)*(Math.PI / 180));\
		8090	ctx.fillText(text,0,0);\
		8091	ctx.restore();\
		8092	}else{ctx.fillText(text,x,y);};\
		8093	ctx.restore();\
		8094	return;\
7653	schaersvoo	8095	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	8096	break;
		8097	case DRAW_CURVE:
		8098	fprintf(js_include_file,"\n<!-- draw curve -->\n\
8105	schaersvoo	8099	var draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	8100	var obj;\
		8101	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8102	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8103	}\
		8104	else\
		8105	{\
		8106	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8107	};\
		8108	var ctx = obj.getContext(\"2d\");\
		8109	ctx.save();\
8071	schaersvoo	8110	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	8111	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		8112	ctx.beginPath();ctx.lineWidth = line_width;\
11088	schaersvoo	8113	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	8114	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		8115	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8116	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		8117	for(var p = 1 ; p < x_points.length ; p++){\
		8118	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		8119	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		8120	}\
		8121	else\
		8122	{\
		8123	ctx.stroke();\
		8124	ctx.beginPath();\
		8125	p++;\
		8126	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		8127	};\
		8128	};\
		8129	ctx.stroke();\
		8130	ctx.restore();\
7653	schaersvoo	8131	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	8132	break;
8224	bpr	8133
7614	schaersvoo	8134	case DRAW_INPUTS:
		8135	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
11803	schaersvoo	8136	var draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value,use_offset){\
7614	schaersvoo	8137	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		8138	var input = document.createElement(\"input\");\
		8139	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		8140	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		8141	input.setAttribute(\"size\",size);\
		8142	input.setAttribute(\"value\",value);\
7877	schaersvoo	8143	if( readonly == 0 \|\| wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
11803	schaersvoo	8144	canvas_div.appendChild(input);\
		8145	if(use_offset != 0 ){ center_input('canvas_input'+input_cnt,x,y,style);};\
		8146	};\
		8147	function center_input(id,x,y,style){\
		8148	var inp = document.getElementById(id);\
		8149	var pos = inp.getBoundingClientRect();\
		8150	var center_x = parseInt(x - 0.5*(pos.width));\
		8151	var center_y = parseInt(y - 0.5*(pos.height));\
		8152	try{ inp.setAttribute(\"style\",\"position:absolute;left:\"+center_x+\"px;top:\"+center_y+\"px;\"+style );}\
		8153	catch(e){return;};\
		8154	};");
7614	schaersvoo	8155	break;
8224	bpr	8156
7614	schaersvoo	8157	case DRAW_TEXTAREAS:
		8158	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
8105	schaersvoo	8159	var draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
7614	schaersvoo	8160	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		8161	var textarea = document.createElement(\"textarea\");\
		8162	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		8163	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		8164	textarea.setAttribute(\"cols\",cols);\
		8165	textarea.setAttribute(\"rows\",rows);\
7877	schaersvoo	8166	textarea.value = value;\
		8167	if( readonly == 0 \|\| wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
7653	schaersvoo	8168	canvas_div.appendChild(textarea);};");
7614	schaersvoo	8169	break;
8224	bpr	8170
7614	schaersvoo	8171	case DRAW_PIXELS:
		8172	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
8105	schaersvoo	8173	var draw_setpixel = function(x,y,color,opacity,pixelsize){\
7614	schaersvoo	8174	var canvas = create_canvas%d(10,xsize,ysize);\
		8175	var d = 0.5*pixelsize;\
		8176	var ctx = canvas.getContext(\"2d\");\
9462	schaersvoo	8177	if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
7614	schaersvoo	8178	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		8179	ctx.clearRect(0,0,xsize,ysize);\
		8180	for(var p=0; p<x.length;p++){\
		8181	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		8182	};\
		8183	ctx.fill();ctx.stroke();\
		8184	};",canvas_root_id);
		8185	break;
		8186
		8187	case DRAW_CLOCK:
		8188	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		8189	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		8190	var clock_ctx = clock_canvas.getContext(\"2d\");\
		8191	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
8130	schaersvoo	8192	clock_ctx.clearRect(xc - radius,yc - radius,2radius,2radius);\
7614	schaersvoo	8193	clock_ctx.save();\
7997	schaersvoo	8194	clock_ctx.globalAlpha = clock_bg_opacity;\
7614	schaersvoo	8195	this.type = type \|\| 0;\
		8196	this.interaction = interaction \|\| 0;\
7862	schaersvoo	8197	this.H = H;\
		8198	this.M = M;\
		8199	this.S = S;\
7614	schaersvoo	8200	this.xc = xc \|\| xsize/2;\
		8201	this.yc = yc \|\| ysize/2;\
		8202	this.radius = radius \|\| xsize/4;\
		8203	var font_size = parseInt(0.2*this.radius);\
		8204	this.H_color = h_color \|\| \"blue\";\
		8205	this.M_color = m_color \|\| \"blue\";\
		8206	this.S_color = s_color \|\| \"blue\";\
		8207	this.fg_color = fg_color \|\| \"red\";\
		8208	this.bg_color = bg_color \|\| \"white\";\
		8209	clock_ctx.translate(this.xc,this.yc);\
		8210	clock_ctx.beginPath();\
		8211	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		8212	clock_ctx.fillStyle = this.bg_color;\
		8213	clock_ctx.fill();\
		8214	clock_ctx.closePath();\
		8215	clock_ctx.beginPath();\
		8216	clock_ctx.font = font_size+\"px Arial\";\
		8217	clock_ctx.fillStyle = this.fg_color;\
		8218	clock_ctx.textAlign = \"center\";\
		8219	clock_ctx.textBaseline = 'middle';\
		8220	var angle;var x1,y1,x2,y2;\
		8221	var angle_cos;var angle_sin;\
7997	schaersvoo	8222	clock_ctx.globalAlpha = clock_fg_opacity;\
7614	schaersvoo	8223	switch(type){\
		8224	case 0:clock_ctx.beginPath();\
		8225	for(var p = 1; p <= 12 ; p++){\
		8226	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		8227	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		8228	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		8229	clock_ctx.moveTo(x1,y1);\
		8230	clock_ctx.lineTo(x2,y2);\
		8231	};\
		8232	for(var p = 1; p <= 60 ; p++){\
		8233	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		8234	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		8235	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		8236	clock_ctx.moveTo(x1,y1);\
		8237	clock_ctx.lineTo(x2,y2);\
		8238	};\
		8239	clock_ctx.closePath();\
		8240	clock_ctx.stroke();\
		8241	break;\
		8242	case 1:\
		8243	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.9this.radiusMath.cos(angle);y1 = 0.9this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};break;\
7862	schaersvoo	8244	case 2:\
		8245	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.8this.radiusMath.cos(angle);y1 = 0.8this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};\
7614	schaersvoo	8246	clock_ctx.beginPath();\
		8247	for(var p = 1; p <= 12 ; p++){\
		8248	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		8249	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		8250	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		8251	clock_ctx.moveTo(x1,y1);\
		8252	clock_ctx.lineTo(x2,y2);\
		8253	};\
		8254	for(var p = 1; p <= 60 ; p++){\
		8255	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		8256	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		8257	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		8258	clock_ctx.moveTo(x1,y1);\
		8259	clock_ctx.lineTo(x2,y2);\
		8260	};\
		8261	clock_ctx.closePath();\
		8262	clock_ctx.stroke();\
		8263	break;\
		8264	};\
		8265	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		8266	clock_ctx.rotate(angle);\
		8267	clock_ctx.beginPath();\
		8268	clock_ctx.moveTo(-3, -2);\
		8269	clock_ctx.lineTo(-3, 2);\
11026	bpr	8270	clock_ctx.lineTo(this.radius * 0.6, 1);\
		8271	clock_ctx.lineTo(this.radius * 0.6, -1);\
7614	schaersvoo	8272	clock_ctx.fillStyle = this.H_color;\
		8273	clock_ctx.fill();\
		8274	clock_ctx.rotate(-angle);\
		8275	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		8276	clock_ctx.rotate(angle);\
		8277	clock_ctx.beginPath();\
		8278	clock_ctx.moveTo(-3, -2);\
		8279	clock_ctx.lineTo(-3, 2);\
		8280	clock_ctx.lineTo(this.radius * 0.8, 1);\
		8281	clock_ctx.lineTo(this.radius * 0.8, -1);\
		8282	clock_ctx.fillStyle = this.M_color;\
		8283	clock_ctx.fill();\
		8284	clock_ctx.rotate(-angle);\
		8285	angle = (this.S - 15) * 2 * Math.PI / 60;\
		8286	clock_ctx.rotate(angle);\
		8287	clock_ctx.beginPath();\
		8288	clock_ctx.moveTo(0,0);\
11026	bpr	8289	clock_ctx.lineTo(this.radius * 0.9, 1);\
		8290	clock_ctx.lineTo(this.radius * 0.9, -1);\
7614	schaersvoo	8291	clock_ctx.strokeStyle = this.S_color;\
		8292	clock_ctx.stroke();\
		8293	clock_ctx.restore();\
7653	schaersvoo	8294	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	8295	break;
		8296
		8297	case DRAW_LATTICE:
		8298	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
8105	schaersvoo	8299	var draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	8300	var obj;\
		8301	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8302	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8303	}\
		8304	else\
		8305	{\
		8306	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8307	};\
		8308	var ctx = obj.getContext(\"2d\");\
		8309	ctx.save();\
8071	schaersvoo	8310	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	8311	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		8312	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8313	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8314	var radius = line_width;\
		8315	var x = 0;\
		8316	var y = 0;\
		8317	var x_step_px = xsize/(xmax-xmin);\
		8318	var y_step_px = ysize/(ymax-ymin);\
		8319	var xv1 = dx1*x_step_px;\
		8320	var yv1 = dy1*y_step_px;\
		8321	var xv2 = dx2*x_step_px;\
		8322	var yv2 = dy2*y_step_px;\
		8323	for(var p = 0; p < n1 ;p++){\
		8324	x = p*xv1 + x0;\
		8325	y = p*yv1 + y0;\
		8326	for(var c = 0; c < n2 ; c++){\
		8327	ctx.beginPath();\
		8328	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		8329	ctx.fill();\
		8330	ctx.stroke();\
		8331	ctx.closePath();\
		8332	};\
		8333	};\
		8334	ctx.restore();\
		8335	return;\
7653	schaersvoo	8336	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	8337	break;
7735	schaersvoo	8338	case DRAW_XYLOGSCALE:
		8339	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
8105	schaersvoo	8340	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,precision){\
7956	schaersvoo	8341	var obj;\
		8342	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8343	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8344	}\
		8345	else\
		8346	{\
		8347	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8348	};\
		8349	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	8350	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	8351	ctx.save();\
7739	schaersvoo	8352	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
7956	schaersvoo	8353	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		8354	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		8355	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		8356	var y_max = Math.log(ymax)/Math.log(ylogbase);\
7739	schaersvoo	8357	if(use_axis_numbering == 1){\
7956	schaersvoo	8358	ctx.font = font_family;\
		8359	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
		8360	ymarge = parseInt(1.5*font_size);\
		8361	ctx.save();\
		8362	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		8363	ctx.rect(0,0,xmarge,ysize);\
		8364	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		8365	ctx.fill();\
		8366	ctx.restore();\
		8367	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	8368	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	8369	ctx.save();\
		8370	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8371	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8372	corr = ctx.measureText(xaxislabel).width;\
		8373	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		8374	ctx.restore();\
		8375	};\
11088	schaersvoo	8376	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	8377	ctx.save();\
		8378	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8379	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8380	corr = ctx.measureText(yaxislabel).width;\
		8381	ctx.translate(xmarge+font_size,corr+font_size);\
		8382	ctx.rotate(-0.5*Math.PI);\
		8383	ctx.fillText(yaxislabel,0,0);\
		8384	ctx.restore();\
		8385	};\
		8386	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8387	ctx.lineWidth = line_width;\
		8388	for(var p = x_min; p <= x_max ; p++){\
		8389	num = Math.pow(xlogbase,p);\
		8390	for(var i = 1 ; i < xlogbase ; i++){\
		8391	x_e = x2px(i*num);\
7735	schaersvoo	8392	if( i == 1 ){\
7956	schaersvoo	8393	ctx.lineWidth = line_width;\
		8394	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7738	schaersvoo	8395	if( use_axis_numbering == 1 && p > x_min){\
7956	schaersvoo	8396	xtxt = xlogbase+'^'+p.toFixed(0);\
		8397	corr = 0.5*(ctx.measureText(xtxt).width);\
		8398	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		8399	};\
7735	schaersvoo	8400	}else{\
7956	schaersvoo	8401	ctx.lineWidth = 0.2*line_width;\
		8402	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		8403	};\
7738	schaersvoo	8404	if( x_e >= xmarge ){\
7956	schaersvoo	8405	ctx.beginPath();\
		8406	ctx.moveTo(x_e,0);\
		8407	ctx.lineTo(x_e,ysize - ymarge);\
		8408	ctx.stroke();\
		8409	ctx.closePath();\
7738	schaersvoo	8410	};\
7956	schaersvoo	8411	};\
		8412	};\
		8413	for(var p = y_min; p <= y_max ; p++){\
		8414	num = Math.pow(ylogbase,p);\
		8415	for(var i = 1 ; i < ylogbase ; i++){\
		8416	y_e = y2px(i*num);\
		8417	if( i == 1 ){\
		8418	ctx.lineWidth = line_width;\
7735	schaersvoo	8419	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	8420	if( use_axis_numbering == 1 && p > y_min){\
		8421	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
		8422	};\
		8423	}else{\
		8424	ctx.lineWidth = 0.2*line_width;\
		8425	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		8426	};\
		8427	ctx.beginPath();\
		8428	ctx.moveTo(xmarge,y_e);\
		8429	ctx.lineTo(xsize,y_e);\
		8430	ctx.stroke();\
		8431	ctx.closePath();\
		8432	};\
		8433	};\
7735	schaersvoo	8434	ctx.restore();\
		8435	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		8436	break;
7614	schaersvoo	8437
7735	schaersvoo	8438	case DRAW_XLOGSCALE:
		8439	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
8105	schaersvoo	8440	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,ymajor,yminor,precision){\
7956	schaersvoo	8441	var obj;\
		8442	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8443	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8444	}\
		8445	else\
		8446	{\
		8447	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8448	};\
		8449	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	8450	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	8451	ctx.save();\
		8452	ctx.lineWidth = line_width;\
7739	schaersvoo	8453	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	8454	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		8455	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		8456	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	8457	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		8458	if(use_axis_numbering == 1){\
7956	schaersvoo	8459	ctx.font = font_family;\
		8460	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
		8461	ymarge = parseInt(1.5*font_size);\
		8462	ctx.save();\
		8463	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		8464	ctx.rect(0,0,xmarge,ysize);\
		8465	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		8466	ctx.fill();\
		8467	ctx.restore();\
		8468	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	8469	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	8470	ctx.save();\
		8471	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8472	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8473	corr = ctx.measureText(xaxislabel).width;\
		8474	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		8475	ctx.restore();\
		8476	};\
11088	schaersvoo	8477	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	8478	ctx.save();\
		8479	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8480	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8481	corr = ctx.measureText(yaxislabel).width;\
		8482	ctx.translate(xmarge+font_size,corr+font_size);\
		8483	ctx.rotate(-0.5*Math.PI);\
		8484	ctx.fillText(yaxislabel,0,0);\
		8485	ctx.restore();\
		8486	};\
		8487	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8488	ctx.lineWidth = line_width;\
		8489	for(var p = x_min; p <= x_max ; p++){\
		8490	num = Math.pow(xlogbase,p);\
		8491	for(var i = 1 ; i < xlogbase ; i++){\
		8492	x_e = x2px(i*num);\
7735	schaersvoo	8493	if( i == 1 ){\
7956	schaersvoo	8494	ctx.lineWidth = line_width;\
7739	schaersvoo	8495	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		8496	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	8497	xtxt = xlogbase+'^'+p.toFixed(0);\
		8498	corr = 0.5*(ctx.measureText(xtxt).width);\
		8499	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		8500	};\
		8501	}else{\
7956	schaersvoo	8502	ctx.lineWidth = 0.2*line_width;\
7735	schaersvoo	8503	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		8504	};\
7739	schaersvoo	8505	if( x_e >= xmarge ){\
7956	schaersvoo	8506	ctx.beginPath();\
		8507	ctx.moveTo(x_e,0);\
		8508	ctx.lineTo(x_e,ysize - ymarge);\
		8509	ctx.stroke();\
		8510	ctx.closePath();\
7739	schaersvoo	8511	};\
		8512	};\
7956	schaersvoo	8513	};\
7735	schaersvoo	8514	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		8515	var minor_step = stepy / yminor;\
7749	schaersvoo	8516	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	8517	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	8518	ctx.lineWidth = line_width;\
		8519	ctx.beginPath();\
		8520	ctx.moveTo(xmarge,y);\
		8521	ctx.lineTo(xsize,y);\
		8522	ctx.stroke();\
		8523	ctx.closePath();\
7735	schaersvoo	8524	if( use_axis_numbering == 1){\
		8525	ytxt = (px2y(y)).toFixed(prec);\
		8526	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		8527	};\
		8528	for(var dy = 1 ; dy < yminor ; dy++){\
		8529	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	8530	ctx.lineWidth = 0.2*line_width;\
		8531	ctx.beginPath();\
7739	schaersvoo	8532	ctx.moveTo(xmarge,y+dy*minor_step);\
7956	schaersvoo	8533	ctx.lineTo(xsize,y+dy*minor_step);\
		8534	ctx.stroke();\
		8535	ctx.closePath();\
7735	schaersvoo	8536	};\
		8537	};\
7956	schaersvoo	8538	ctx.restore();\
		8539	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7735	schaersvoo	8540	break;
7729	schaersvoo	8541	case DRAW_YLOGSCALE:
		8542	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
8105	schaersvoo	8543	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,xmajor,xminor,precision){\
7956	schaersvoo	8544	var obj;\
		8545	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8546	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8547	}\
		8548	else\
		8549	{\
		8550	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8551	};\
		8552	var ctx = obj.getContext(\"2d\");\
7729	schaersvoo	8553	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	8554	ctx.save();\
		8555	ctx.lineWidth = line_width;\
7735	schaersvoo	8556	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		8557	var y_max = Math.log(ymax)/Math.log(ylogbase);\
8109	schaersvoo	8558	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
7739	schaersvoo	8559	if(use_axis_numbering == 1){\
7956	schaersvoo	8560	ctx.font = font_family;\
		8561	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
		8562	ymarge = 2*font_size;\
		8563	ctx.save();\
		8564	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		8565	ctx.rect(0,0,xmarge,ysize);\
		8566	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		8567	ctx.fill();\
		8568	ctx.restore();\
		8569	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	8570	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	8571	ctx.save();\
		8572	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8573	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8574	corr = ctx.measureText(xaxislabel).width;\
		8575	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		8576	ctx.restore();\
		8577	};\
11088	schaersvoo	8578	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	8579	ctx.save();\
		8580	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		8581	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8582	corr = ctx.measureText(yaxislabel).width;\
		8583	ctx.translate(xmarge+font_size,corr+font_size);\
		8584	ctx.rotate(-0.5*Math.PI);\
		8585	ctx.fillText(yaxislabel,0,0);\
		8586	ctx.restore();\
		8587	};\
		8588	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		8589	ctx.lineWidth = line_width;\
		8590	for(var p = y_min; p <= y_max ; p++){\
		8591	num = Math.pow(ylogbase,p);\
		8592	for(var i = 1 ; i < ylogbase ; i++){\
		8593	y_e = y2px(i*num);\
7729	schaersvoo	8594	if( i == 1 ){\
7956	schaersvoo	8595	ctx.lineWidth = line_width;\
7729	schaersvoo	8596	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	8597	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	8598	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	8599	};\
		8600	}else{\
7956	schaersvoo	8601	ctx.lineWidth = 0.2*line_width;\
7729	schaersvoo	8602	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		8603	};\
7956	schaersvoo	8604	ctx.beginPath();\
		8605	ctx.moveTo(xmarge,y_e);\
		8606	ctx.lineTo(xsize,y_e);\
		8607	ctx.stroke();\
		8608	ctx.closePath();\
		8609	};\
		8610	};\
7729	schaersvoo	8611	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		8612	var minor_step = stepx / xminor;\
		8613	var prec = Math.log(precision)/Math.log(10);\
		8614	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	8615	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	8616	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	8617	ctx.lineWidth = line_width;\
		8618	ctx.beginPath();\
		8619	ctx.moveTo(x,ysize-ymarge);\
		8620	ctx.lineTo(x,0);\
		8621	ctx.stroke();\
		8622	ctx.closePath();\
7729	schaersvoo	8623	if( use_axis_numbering == 1){\
		8624	xtxt = (px2x(x)).toFixed(prec);\
		8625	corr = 0.5*(ctx.measureText(xtxt).width);\
		8626	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		8627	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		8628	};\
		8629	for(var dx = 1 ; dx < xminor ; dx++){\
		8630	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	8631	ctx.lineWidth = 0.2*line_width;\
		8632	ctx.beginPath();\
7739	schaersvoo	8633	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7956	schaersvoo	8634	ctx.lineTo(x+dx*minor_step,0);\
		8635	ctx.stroke();\
		8636	ctx.closePath();\
7735	schaersvoo	8637	};\
		8638	};\
7956	schaersvoo	8639	ctx.restore();\
		8640	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7729	schaersvoo	8641	break;
9213	schaersvoo	8642
7614	schaersvoo	8643	default:break;
		8644	}
		8645	}
		8646	}
		8647	return;
		8648	}
		8649
		8650	void check_string_length(int L){
9466	schaersvoo	8651	if( L > MAX_BUFFER-1){
7614	schaersvoo	8652	canvas_error("problem with your arguments to command...");
		8653	}
		8654	return;
		8655	}
		8656
		8657
		8658	int get_token(FILE *infile){
		8659	int c,i=0;
		8660	char temp[MAX_INT], *input_type;
		8661	char *line="line",
		8662	*audio="audio",
		8663	*blink="blink",
		8664	*arrowhead="arrowhead",
		8665	*crosshairsize="crosshairsize",
		8666	*crosshair="crosshair",
		8667	*crosshairs="crosshairs",
		8668	*audioobject="audioobject",
		8669	*style="style",
		8670	*mouse="mouse",
7991	schaersvoo	8671	*mousex="mousex",
		8672	*mousey="mousey",
8071	schaersvoo	8673	*mouse_display="display",
		8674	*mouse_degree="mouse_degree",
7614	schaersvoo	8675	*userdraw="userdraw",
		8676	*highlight="highlight",
		8677	*http="http",
		8678	*rays="rays",
		8679	*dashtype="dashtype",
		8680	*dashed="dashed",
		8681	*filled="filled",
		8682	*lattice="lattice",
		8683	*parallel="parallel",
		8684	*segment="segment",
8299	schaersvoo	8685	*segments="segments",
7614	schaersvoo	8686	*dsegment="dsegment",
9374	schaersvoo	8687	*dsegments="dsegments",
7614	schaersvoo	8688	*seg="seg",
9383	schaersvoo	8689	*segs="segs",
7614	schaersvoo	8690	*bgimage="bgimage",
		8691	*bgcolor="bgcolor",
		8692	*strokecolor="strokecolor",
		8693	*backgroundimage="backgroundimage",
		8694	*text="text",
		8695	*textup="textup",
		8696	*mouseprecision="mouseprecision",
		8697	*precision="precision",
		8698	*plotsteps="plotsteps",
		8699	*plotstep="plotstep",
		8700	*tsteps="tsteps",
		8701	*curve="curve",
		8702	*dcurve="dcurve",
		8703	*plot="plot",
		8704	*dplot="dplot",
7788	schaersvoo	8705	*levelcurve="levelcurve",
7614	schaersvoo	8706	*fontsize="fontsize",
		8707	*fontcolor="fontcolor",
		8708	*axis="axis",
		8709	*axisnumbering="axisnumbering",
		8710	*axisnumbers="axisnumbers",
		8711	*arrow="arrow",
9382	schaersvoo	8712	*vector="vector",
		8713	*vectors="vectors",
7614	schaersvoo	8714	*darrow="darrow",
		8715	*arrow2="arrow2",
		8716	*darrow2="darrow2",
8304	schaersvoo	8717	*arrows="arrows",
8347	schaersvoo	8718	*arrows2="arrows2",
7614	schaersvoo	8719	*zoom="zoom",
		8720	*grid="grid",
		8721	*hline="hline",
7786	schaersvoo	8722	*dhline="dhline",
7614	schaersvoo	8723	*drag="drag",
		8724	*horizontalline="horizontalline",
9383	schaersvoo	8725	*horizontallines="horizontallines",
7614	schaersvoo	8726	*vline="vline",
7786	schaersvoo	8727	*dvline="dvline",
7614	schaersvoo	8728	*verticalline="verticalline",
9383	schaersvoo	8729	*verticallines="verticallines",
7614	schaersvoo	8730	*triangle="triangle",
9306	schaersvoo	8731	*triangles="triangles",
7614	schaersvoo	8732	*ftriangle="ftriangle",
9374	schaersvoo	8733	*ftriangles="ftriangles",
7614	schaersvoo	8734	*mathml="mathml",
		8735	*html="html",
		8736	*input="input",
8146	schaersvoo	8737	*clearbutton="clearbutton",
9386	schaersvoo	8738	*erase="erase",
		8739	*delete="delete",
7614	schaersvoo	8740	*inputstyle="inputstyle",
		8741	*textarea="textarea",
		8742	*trange="trange",
		8743	*ranget="ranget",
		8744	*xrange="xrange",
		8745	*yrange="yrange",
		8746	*rangex="rangex",
		8747	*rangey="rangey",
8370	schaersvoo	8748	*path="path",
7614	schaersvoo	8749	*polyline="polyline",
8351	schaersvoo	8750	*brokenline="brokenline",
7614	schaersvoo	8751	*lines="lines",
		8752	*poly="poly",
		8753	*polygon="polygon",
		8754	*fpolygon="fpolygon",
		8755	*fpoly="fpoly",
		8756	*filledpoly="filledpoly",
		8757	*filledpolygon="filledpolygon",
		8758	*rect="rect",
		8759	*frect="frect",
		8760	*rectangle="rectangle",
		8761	*frectangle="frectangle",
		8762	*square="square",
		8763	*fsquare="fsquare",
9374	schaersvoo	8764	*fsquares="fsquares",
8363	schaersvoo	8765	*rects="rects",
		8766	*frects="frects",
7614	schaersvoo	8767	*dline="dline",
		8768	*arc="arc",
		8769	*filledarc="filledarc",
9374	schaersvoo	8770	*farc="farc",
7614	schaersvoo	8771	*size="size",
		8772	*string="string",
		8773	*stringup="stringup",
		8774	*copy="copy",
		8775	*copyresized="copyresized",
		8776	*opacity="opacity",
		8777	*transparent="transparent",
		8778	*fill="fill",
		8779	*point="point",
		8780	*points="points",
		8781	*linewidth="linewidth",
		8782	*circle="circle",
8304	schaersvoo	8783	*circles="circles",
7614	schaersvoo	8784	*fcircle="fcircle",
9374	schaersvoo	8785	*fcircles="fcircles",
7614	schaersvoo	8786	*disk="disk",
9374	schaersvoo	8787	*disks="disks",
7614	schaersvoo	8788	*comment="#",
		8789	*end="end",
		8790	*ellipse="ellipse",
		8791	*fellipse="fellipse",
		8792	*rotate="rotate",
7785	schaersvoo	8793	*affine="affine",
9907	schaersvoo	8794	*rotationcenter="rotationcenter",
		8795	*killrotate="killrotate",
7785	schaersvoo	8796	*killaffine="killaffine",
7614	schaersvoo	8797	*fontfamily="fontfamily",
		8798	*fillcolor="fillcolor",
		8799	*clicktile="clicktile",
		8800	*clicktile_colors="clicktile_colors",
		8801	*translation="translation",
		8802	*translate="translate",
		8803	*killtranslation="killtranslation",
		8804	*killtranslate="killtranslate",
		8805	*onclick="onclick",
8370	schaersvoo	8806	*roundrects="roundrects",
7614	schaersvoo	8807	*roundrect="roundrect",
		8808	*froundrect="froundrect",
9374	schaersvoo	8809	*froundrects="froundrects",
7614	schaersvoo	8810	*roundrectangle="roundrectangle",
		8811	*patternfill="patternfill",
		8812	*hatchfill="hatchfill",
		8813	*diafill="diafill",
7647	schaersvoo	8814	*diamondfill="diamondfill",
7614	schaersvoo	8815	*dotfill="dotfill",
		8816	*gridfill="gridfill",
		8817	*imagefill="imagefill",
7735	schaersvoo	8818	*xlogbase="xlogbase",
		8819	*ylogbase="ylogbase",
7614	schaersvoo	8820	*xlogscale="xlogscale",
		8821	*ylogscale="ylogscale",
		8822	*xylogscale="xylogscale",
		8823	*intooltip="intooltip",
9329	schaersvoo	8824	*popup="popup",
7614	schaersvoo	8825	*replyformat="replyformat",
		8826	*floodfill="floodfill",
11772	schaersvoo	8827	*fillall="fillall",
7614	schaersvoo	8828	*filltoborder="filltoborder",
		8829	*setpixel="setpixel",
		8830	*pixels="pixels",
		8831	*pixelsize="pixelsize",
		8832	*xaxis="xaxis",
9341	schaersvoo	8833	*xaxisup="xaxisup",
7614	schaersvoo	8834	*yaxis="yaxis",
		8835	*xaxistext="xaxistext",
9341	schaersvoo	8836	*xaxistextup="xaxistextup",
7614	schaersvoo	8837	*yaxistext="yaxistext",
		8838	*piechart="piechart",
9433	schaersvoo	8839	*boxplot="boxplot",
9465	schaersvoo	8840	*boxplotdata="boxplotdata",
		8841	*userboxplot="userboxplot",
		8842	*userboxplotdata="userboxplotdata",
7614	schaersvoo	8843	*legend="legend",
		8844	*legendcolors="legendcolors",
		8845	*xlabel="xlabel",
		8846	*ylabel="ylabel",
		8847	*barchart="barchart",
		8848	*linegraph="linegraph",
		8849	*clock="clock",
		8850	*animate="animate",
		8851	*video="video",
		8852	*status="status",
7877	schaersvoo	8853	*nostatus="nostatus",
7652	schaersvoo	8854	*snaptogrid="snaptogrid",
7784	schaersvoo	8855	*xsnaptogrid="xsnaptogrid",
		8856	*ysnaptogrid="ysnaptogrid",
8379	schaersvoo	8857	*snaptopoints="snaptopoints",
9213	schaersvoo	8858	*snaptofunction="snaptofunction",
		8859	*snaptofun="snaptofun",
7654	schaersvoo	8860	*userinput_xy="userinput_xy",
8193	schaersvoo	8861	*userinput_function="userinput_function",
7663	schaersvoo	8862	*usertextarea_xy="usertextarea_xy",
8222	schaersvoo	8863	*userinput="userinput",
7823	schaersvoo	8864	*jsmath="jsmath",
7858	schaersvoo	8865	*trace_jscurve="trace_jscurve",
7838	schaersvoo	8866	*setlimits="setlimits",
7858	schaersvoo	8867	*jscurve="jscurve",
		8868	*jsplot="jsplot",
7983	schaersvoo	8869	*sgraph="sgraph",
7984	schaersvoo	8870	*title="title",
7996	schaersvoo	8871	*centerstring="centerstring",
		8872	*xunit="xunit",
8071	schaersvoo	8873	*yunit="yunit",
8101	schaersvoo	8874	*slider="slider",
8105	schaersvoo	8875	*killslider="killslider",
8244	schaersvoo	8876	*angle="angle",
8365	schaersvoo	8877	*halflines="halflines",
		8878	*demilines="demilines",
8244	schaersvoo	8879	*halfline="halfline",
8297	schaersvoo	8880	*demiline="demiline",
8366	schaersvoo	8881	*hlines="hlines",
		8882	*vlines="vlines",
8370	schaersvoo	8883	*bezier="bezier",
9213	schaersvoo	8884	*functionlabel="functionlabel",
		8885	*sliderfunction_x="sliderfunction_x",
		8886	*sliderfunction_y="sliderfunction_y",
		8887	*multidraw="multidraw",
		8888	*multilinewidth="multilinewidth",
		8889	*multistrokecolors="multistrokecolors",
		8890	*multifillcolors="multifillcolors",
		8891	*multistrokeopacity="multistrokeopacity",
		8892	*multifillopacity="multifillopacity",
		8893	*multifill="multifill",
		8894	*multidash="multidash",
		8895	*multilabel="multilabel",
		8896	*multiuserinput="multiuserinput",
9289	schaersvoo	8897	*multisnaptogrid="multisnaptogrid",
		8898	*protractor="protractor",
9386	schaersvoo	8899	*ruler="ruler",
		8900	*cursor="cursor",
9427	schaersvoo	8901	*pointer="pointer",
		8902	*yerrorbars="yerrorbars",
11006	schaersvoo	8903	*xerrorbars="xerrorbars",
11044	schaersvoo	8904	*noxaxis="noxaxis",
		8905	*noyaxis="noyaxis",
11767	schaersvoo	8906	*colorpalette="colorpalette",
11802	schaersvoo	8907	*xoffset="xoffset",
		8908	*centered="centered",
		8909	*xyoffset="xyoffset",
11811	schaersvoo	8910	*yoffset="yoffset",
11802	schaersvoo	8911	*resetoffset="resetoffset",
11006	schaersvoo	8912	*canvastype="canvastype";
7614	schaersvoo	8913
10891	schaersvoo	8914	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')&&(c!='\t')){
		8915	if( i == 0 && (c == ' ') ){ continue; /* white spaces or tabs allowed before first command identifier */
		8916	}else{
		8917	if( c == ' ' ){
7614	schaersvoo	8918	break;
10891	schaersvoo	8919	}else{
		8920	temp[i] = c;
		8921	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		8922	i++;
		8923	}
		8924	}
		8925	if(temp[0] == '#'){ break; }
7614	schaersvoo	8926	}
10891	schaersvoo	8927	if (c == '\n' \|\| c == '\r' \|\| c == '\t' ){ line_number++; }
		8928	if (c == EOF) {finished=1;return 0;}
7614	schaersvoo	8929
		8930	temp[i]='\0';
		8931	input_type=(char*)my_newmem(strlen(temp));
		8932	snprintf(input_type,sizeof(temp),"%s",temp);
10891	schaersvoo	8933	/* fprintf(stdout,"temp = %s <br/>",input_type); */
7614	schaersvoo	8934	if( strcmp(input_type, size) == 0 ){
		8935	free(input_type);
		8936	return SIZE;
		8937	}
		8938	if( strcmp(input_type, xrange) == 0 ){
		8939	free(input_type);
		8940	return XRANGE;
		8941	}
		8942	if( strcmp(input_type, rangex) == 0 ){
		8943	free(input_type);
		8944	return XRANGE;
		8945	}
		8946	if( strcmp(input_type, trange) == 0 ){
		8947	free(input_type);
		8948	return TRANGE;
		8949	}
		8950	if( strcmp(input_type, ranget) == 0 ){
		8951	free(input_type);
		8952	return TRANGE;
		8953	}
		8954	if( strcmp(input_type, yrange) == 0 ){
		8955	free(input_type);
		8956	return YRANGE;
		8957	}
		8958	if( strcmp(input_type, rangey) == 0 ){
		8959	free(input_type);
		8960	return YRANGE;
		8961	}
		8962	if( strcmp(input_type, linewidth) == 0 ){
		8963	free(input_type);
		8964	return LINEWIDTH;
		8965	}
		8966	if( strcmp(input_type, dashed) == 0 ){
		8967	free(input_type);
		8968	return DASHED;
		8969	}
		8970	if( strcmp(input_type, dashtype) == 0 ){
		8971	free(input_type);
		8972	return DASHTYPE;
		8973	}
		8974	if( strcmp(input_type, axisnumbering) == 0 ){
		8975	free(input_type);
		8976	return AXIS_NUMBERING;
		8977	}
		8978	if( strcmp(input_type, axisnumbers) == 0 ){
		8979	free(input_type);
		8980	return AXIS_NUMBERING;
		8981	}
		8982	if( strcmp(input_type, axis) == 0 ){
		8983	free(input_type);
		8984	return AXIS;
		8985	}
		8986	if( strcmp(input_type, grid) == 0 ){
		8987	free(input_type);
		8988	return GRID;
		8989	}
9383	schaersvoo	8990	if( strcmp(input_type, hlines) == 0 \|\| strcmp(input_type, horizontallines) == 0 ){
8366	schaersvoo	8991	free(input_type);
		8992	return HLINES;
		8993	}
9383	schaersvoo	8994	if( strcmp(input_type, vlines) == 0 \|\| strcmp(input_type, verticallines) == 0 ){
8366	schaersvoo	8995	free(input_type);
		8996	return VLINES;
		8997	}
9383	schaersvoo	8998	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
7614	schaersvoo	8999	free(input_type);
		9000	return HLINE;
		9001	}
		9002	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		9003	free(input_type);
		9004	return VLINE;
		9005	}
		9006	if( strcmp(input_type, line) == 0 ){
		9007	free(input_type);
		9008	return LINE;
		9009	}
9383	schaersvoo	9010	if( strcmp(input_type, segments) == 0 \|\| strcmp(input_type, segs) == 0 ){
8299	schaersvoo	9011	free(input_type);
		9012	return SEGMENTS;
		9013	}
7614	schaersvoo	9014	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		9015	free(input_type);
		9016	return SEGMENT;
		9017	}
9374	schaersvoo	9018	if( strcmp(input_type, dsegments) == 0 ){
		9019	free(input_type);
		9020	use_dashed = TRUE;
		9021	return SEGMENTS;
		9022	}
7614	schaersvoo	9023	if( strcmp(input_type, dsegment) == 0 ){
		9024	free(input_type);
		9025	use_dashed = TRUE;
		9026	return SEGMENT;
		9027	}
		9028	if( strcmp(input_type, crosshairsize) == 0 ){
		9029	free(input_type);
		9030	return CROSSHAIRSIZE;
		9031	}
		9032	if( strcmp(input_type, arrowhead) == 0 ){
		9033	free(input_type);
		9034	return ARROWHEAD;
		9035	}
		9036	if( strcmp(input_type, crosshairs) == 0 ){
		9037	free(input_type);
		9038	return CROSSHAIRS;
		9039	}
		9040	if( strcmp(input_type, crosshair) == 0 ){
		9041	free(input_type);
		9042	return CROSSHAIR;
		9043	}
		9044	if( strcmp(input_type, onclick) == 0 ){
		9045	free(input_type);
		9046	return ONCLICK;
		9047	}
		9048	if( strcmp(input_type, drag) == 0 ){
		9049	free(input_type);
		9050	return DRAG;
		9051	}
		9052	if( strcmp(input_type, userdraw) == 0 ){
		9053	free(input_type);
		9054	return USERDRAW;
		9055	}
		9056	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		9057	free(input_type);
		9058	return STYLE;
		9059	}
		9060	if( strcmp(input_type, fillcolor) == 0 ){
		9061	free(input_type);
		9062	return FILLCOLOR;
		9063	}
		9064	if( strcmp(input_type, strokecolor) == 0 ){
		9065	free(input_type);
		9066	return STROKECOLOR;
		9067	}
		9068	if( strcmp(input_type, filled) == 0 ){
		9069	free(input_type);
		9070	return FILLED;
		9071	}
		9072	if( strcmp(input_type, http) == 0 ){
		9073	free(input_type);
		9074	return HTTP;
		9075	}
		9076	if( strcmp(input_type, rays) == 0 ){
		9077	free(input_type);
		9078	return RAYS;
		9079	}
		9080	if( strcmp(input_type, lattice) == 0 ){
		9081	free(input_type);
		9082	return LATTICE;
		9083	}
		9084	if( strcmp(input_type, bgimage) == 0 ){
		9085	free(input_type);
		9086	return BGIMAGE;
		9087	}
		9088	if( strcmp(input_type, bgcolor) == 0 ){
		9089	free(input_type);
		9090	return BGCOLOR;
		9091	}
		9092	if( strcmp(input_type, backgroundimage) == 0 ){
		9093	free(input_type);
		9094	return BGIMAGE;
		9095	}
		9096	if( strcmp(input_type, text) == 0 ){
		9097	free(input_type);
		9098	return FLY_TEXT;
		9099	}
		9100	if( strcmp(input_type, textup) == 0 ){
		9101	free(input_type);
		9102	return FLY_TEXTUP;
		9103	}
		9104	if( strcmp(input_type, mouse) == 0 ){
		9105	free(input_type);
		9106	return MOUSE;
		9107	}
7991	schaersvoo	9108	if( strcmp(input_type, mousex) == 0 ){
		9109	free(input_type);
		9110	return MOUSEX;
		9111	}
		9112	if( strcmp(input_type, mousey) == 0 ){
		9113	free(input_type);
		9114	return MOUSEY;
		9115	}
8071	schaersvoo	9116	if( strcmp(input_type, mouse_degree) == 0 ){
		9117	free(input_type);
		9118	return MOUSE_DEGREE;
		9119	}
		9120	if( strcmp(input_type, mouse_display) == 0 ){
		9121	free(input_type);
		9122	return MOUSE_DISPLAY;
		9123	}
7614	schaersvoo	9124	if( strcmp(input_type, mouseprecision) == 0 ){
		9125	free(input_type);
		9126	return MOUSE_PRECISION;
		9127	}
		9128	if( strcmp(input_type, precision) == 0 ){
		9129	free(input_type);
		9130	return MOUSE_PRECISION;
		9131	}
		9132	if( strcmp(input_type, curve) == 0 ){
		9133	free(input_type);
		9134	return CURVE;
		9135	}
		9136	if( strcmp(input_type, dcurve) == 0 ){
7788	schaersvoo	9137	use_dashed = TRUE;
7614	schaersvoo	9138	free(input_type);
		9139	return CURVE;
		9140	}
		9141	if( strcmp(input_type, plot) == 0 ){
		9142	free(input_type);
		9143	return CURVE;
		9144	}
		9145	if( strcmp(input_type, dplot) == 0 ){
7788	schaersvoo	9146	use_dashed = TRUE;
7614	schaersvoo	9147	free(input_type);
		9148	return CURVE;
		9149	}
7788	schaersvoo	9150	if( strcmp(input_type, levelcurve) == 0 ){
		9151	free(input_type);
		9152	return LEVELCURVE;
		9153	}
7614	schaersvoo	9154	if( strcmp(input_type, plotsteps) == 0 ){
		9155	free(input_type);
		9156	return PLOTSTEPS;
		9157	}
		9158	if( strcmp(input_type, plotstep) == 0 ){
		9159	free(input_type);
		9160	return PLOTSTEPS;
		9161	}
		9162	if( strcmp(input_type, tsteps) == 0 ){
		9163	free(input_type);
		9164	return PLOTSTEPS;
		9165	}
		9166	if( strcmp(input_type, fontsize) == 0 ){
		9167	free(input_type);
		9168	return FONTSIZE;
		9169	}
		9170	if( strcmp(input_type, fontcolor) == 0 ){
		9171	free(input_type);
		9172	return FONTCOLOR;
		9173	}
		9174	if( strcmp(input_type, arrow2) == 0 ){
		9175	free(input_type);
		9176	return ARROW2;
		9177	}
		9178	if( strcmp(input_type, darrow) == 0 ){
		9179	free(input_type);
8071	schaersvoo	9180	use_dashed = TRUE;
7614	schaersvoo	9181	return ARROW;
		9182	}
		9183	if( strcmp(input_type, darrow2) == 0 ){
		9184	free(input_type);
		9185	use_dashed = TRUE;
		9186	return ARROW2;
		9187	}
8347	schaersvoo	9188	if( strcmp(input_type, arrows2) == 0 ){
		9189	free(input_type);
		9190	return ARROWS2;
		9191	}
9382	schaersvoo	9192	if( strcmp(input_type, arrows) == 0 \|\| strcmp(input_type, vectors) == 0 ){
8304	schaersvoo	9193	free(input_type);
		9194	return ARROWS;
		9195	}
9382	schaersvoo	9196	if( strcmp(input_type, arrow) == 0 \|\| strcmp(input_type, vector) == 0 ){
8304	schaersvoo	9197	free(input_type);
		9198	return ARROW;
		9199	}
7614	schaersvoo	9200	if( strcmp(input_type, zoom) == 0 ){
		9201	free(input_type);
		9202	return ZOOM;
		9203	}
		9204	if( strcmp(input_type, triangle) == 0 ){
		9205	free(input_type);
		9206	return TRIANGLE;
		9207	}
9306	schaersvoo	9208	if( strcmp(input_type, triangles) == 0 ){
		9209	free(input_type);
		9210	return TRIANGLES;
		9211	}
9374	schaersvoo	9212	if( strcmp(input_type, ftriangles) == 0 ){
		9213	free(input_type);
		9214	use_filled = TRUE;
		9215	return TRIANGLES;
		9216	}
7614	schaersvoo	9217	if( strcmp(input_type, ftriangle) == 0 ){
		9218	free(input_type);
		9219	use_filled = TRUE;
		9220	return TRIANGLE;
		9221	}
		9222	if( strcmp(input_type, input) == 0 ){
		9223	free(input_type);
		9224	return INPUT;
		9225	}
		9226	if( strcmp(input_type, inputstyle) == 0 ){
		9227	free(input_type);
		9228	return INPUTSTYLE;
		9229	}
		9230	if( strcmp(input_type, textarea) == 0 ){
		9231	free(input_type);
		9232	return TEXTAREA;
		9233	}
		9234	if( strcmp(input_type, mathml) == 0 ){
		9235	free(input_type);
		9236	return MATHML;
		9237	}
		9238	if( strcmp(input_type, html) == 0 ){
		9239	free(input_type);
		9240	return MATHML;
		9241	}
		9242	if( strcmp(input_type, fontfamily) == 0 ){
		9243	free(input_type);
		9244	return FONTFAMILY;
		9245	}
10975	schaersvoo	9246	if( strcmp(input_type, polyline) == 0 \|\| strcmp(input_type, path) == 0 \|\| strcmp(input_type, brokenline) == 0 ){
7614	schaersvoo	9247	free(input_type);
		9248	return POLYLINE;
		9249	}
8351	schaersvoo	9250	if( strcmp(input_type, lines) == 0 ){
		9251	free(input_type);
		9252	return LINES;
		9253	}
9374	schaersvoo	9254	if( strcmp(input_type, rects) == 0){
8363	schaersvoo	9255	free(input_type);
		9256	return RECTS;
		9257	}
9383	schaersvoo	9258	if( strcmp(input_type, frects) == 0 ){
8363	schaersvoo	9259	free(input_type);
9374	schaersvoo	9260	use_filled = TRUE;
8363	schaersvoo	9261	return RECTS;
		9262	}
7614	schaersvoo	9263	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		9264	free(input_type);
		9265	return RECT;
		9266	}
9374	schaersvoo	9267	if( strcmp(input_type, square) == 0 ){
		9268	free(input_type);
		9269	return RECT;
		9270	}
		9271	if( strcmp(input_type, fsquare) == 0 ){
		9272	free(input_type);
		9273	use_filled = TRUE;
		9274	return SQUARE;
		9275	}
		9276	if( strcmp(input_type, fsquares) == 0 ){
		9277	free(input_type);
		9278	use_filled = TRUE;
		9279	return RECTS;
		9280	}
8370	schaersvoo	9281	if( strcmp(input_type, roundrects) == 0 ){
		9282	free(input_type);
		9283	return ROUNDRECTS;
		9284	}
7614	schaersvoo	9285	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		9286	free(input_type);
		9287	return ROUNDRECT;
		9288	}
9374	schaersvoo	9289	if( strcmp(input_type, froundrects) == 0 ){
7614	schaersvoo	9290	free(input_type);
		9291	use_filled = TRUE;
9374	schaersvoo	9292	return ROUNDRECTS;
7614	schaersvoo	9293	}
9374	schaersvoo	9294	if( strcmp(input_type, froundrect) == 0 ){
7614	schaersvoo	9295	free(input_type);
		9296	use_filled = TRUE;
9374	schaersvoo	9297	return ROUNDRECT;
7614	schaersvoo	9298	}
		9299	if( strcmp(input_type, dline) == 0 ){
		9300	use_dashed = TRUE;
		9301	free(input_type);
		9302	return LINE;
		9303	}
7786	schaersvoo	9304	if( strcmp(input_type, dvline) == 0 ){
		9305	use_dashed = TRUE;
		9306	free(input_type);
		9307	return VLINE;
		9308	}
		9309	if( strcmp(input_type, dhline) == 0 ){
		9310	use_dashed = TRUE;
		9311	free(input_type);
		9312	return HLINE;
		9313	}
9386	schaersvoo	9314	if( strcmp(input_type, halflines) == 0 \|\| strcmp(input_type, demilines) == 0 ){
		9315	free(input_type);
		9316	return HALFLINES;
		9317	}
		9318	if( strcmp(input_type, halfline) == 0 \|\| strcmp(input_type, demiline) == 0 ){
		9319	free(input_type);
		9320	return HALFLINE;
		9321	}
7614	schaersvoo	9322	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		9323	use_filled = TRUE;
		9324	free(input_type);
		9325	return RECT;
		9326	}
8304	schaersvoo	9327	if( strcmp(input_type, circles) == 0 ){
		9328	free(input_type);
		9329	return CIRCLES;
		9330	}
7614	schaersvoo	9331	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		9332	use_filled = TRUE;
		9333	free(input_type);
		9334	return CIRCLE;
		9335	}
9374	schaersvoo	9336	if( strcmp(input_type, fcircles) == 0 \|\| strcmp(input_type, disks) == 0 ){
		9337	use_filled = TRUE;
		9338	free(input_type);
		9339	return CIRCLES;
		9340	}
7614	schaersvoo	9341	if( strcmp(input_type, circle) == 0 ){
		9342	free(input_type);
		9343	return CIRCLE;
		9344	}
		9345	if( strcmp(input_type, point) == 0 ){
		9346	free(input_type);
		9347	return POINT;
		9348	}
		9349	if( strcmp(input_type, points) == 0 ){
		9350	free(input_type);
		9351	return POINTS;
		9352	}
9374	schaersvoo	9353	if( strcmp(input_type, filledarc) == 0 \|\| strcmp(input_type, farc) == 0 ){
7614	schaersvoo	9354	use_filled = TRUE;
		9355	free(input_type);
		9356	return ARC;
		9357	}
		9358	if( strcmp(input_type, arc) == 0 ){
		9359	free(input_type);
		9360	return ARC;
		9361	}
		9362	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		9363	free(input_type);
		9364	return POLY;
		9365	}
		9366	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		9367	use_filled = TRUE;
		9368	free(input_type);
		9369	return POLY;
		9370	}
		9371	if( strcmp(input_type, ellipse) == 0){
		9372	free(input_type);
		9373	return ELLIPSE;
		9374	}
		9375	if( strcmp(input_type, string) == 0 ){
		9376	free(input_type);
		9377	return STRING;
		9378	}
		9379	if( strcmp(input_type, stringup) == 0 ){
		9380	free(input_type);
		9381	return STRINGUP;
		9382	}
9385	schaersvoo	9383	if( strcmp(input_type, opacity) == 0 \|\| strcmp(input_type, transparent) == 0 ){
7614	schaersvoo	9384	free(input_type);
		9385	return OPACITY;
		9386	}
		9387	if( strcmp(input_type, comment) == 0){
		9388	free(input_type);
		9389	return COMMENT;
		9390	}
		9391	if( strcmp(input_type, fellipse) == 0){
		9392	free(input_type);
		9393	use_filled = TRUE;
		9394	return ELLIPSE;
8224	bpr	9395	}
9386	schaersvoo	9396	if( strcmp(input_type, clearbutton) == 0 \|\| strcmp(input_type, erase) == 0 \|\| strcmp(input_type, delete) == 0){
7614	schaersvoo	9397	free(input_type);
8146	schaersvoo	9398	return CLEARBUTTON;
7614	schaersvoo	9399	}
		9400	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		9401	free(input_type);
		9402	return TRANSLATION;
		9403	}
		9404	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		9405	free(input_type);
		9406	return KILLTRANSLATION;
		9407	}
		9408	if( strcmp(input_type, rotate) == 0){
		9409	free(input_type);
		9410	return ROTATE;
		9411	}
9907	schaersvoo	9412	if( strcmp(input_type, killrotate) == 0){
		9413	free(input_type);
		9414	return KILLROTATE;
		9415	}
		9416	if( strcmp(input_type, rotationcenter) == 0){
		9417	free(input_type);
		9418	return ROTATION_CENTER;
		9419	}
7785	schaersvoo	9420	if( strcmp(input_type, affine) == 0){
		9421	free(input_type);
		9422	return AFFINE;
		9423	}
		9424	if( strcmp(input_type, killaffine) == 0){
		9425	free(input_type);
		9426	return KILLAFFINE;
		9427	}
7614	schaersvoo	9428	if( strcmp(input_type, slider) == 0 ){
		9429	free(input_type);
		9430	return SLIDER;
		9431	}
8101	schaersvoo	9432	if( strcmp(input_type, killslider) == 0 ){
		9433	free(input_type);
		9434	return KILLSLIDER;
		9435	}
7614	schaersvoo	9436	if( strcmp(input_type, copy) == 0 ){
		9437	free(input_type);
		9438	return COPY;
		9439	}
		9440	if( strcmp(input_type, copyresized) == 0 ){
		9441	free(input_type);
		9442	return COPYRESIZED;
		9443	}
		9444	if( strcmp(input_type, xlogscale) == 0 ){
		9445	free(input_type);
		9446	return XLOGSCALE;
		9447	}
		9448	if( strcmp(input_type, ylogscale) == 0 ){
		9449	free(input_type);
		9450	return YLOGSCALE;
		9451	}
		9452	if( strcmp(input_type, xylogscale) == 0 ){
		9453	free(input_type);
		9454	return XYLOGSCALE;
		9455	}
		9456	if( strcmp(input_type, ylogscale) == 0 ){
		9457	free(input_type);
		9458	return YLOGSCALE;
		9459	}
7735	schaersvoo	9460	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	9461	free(input_type);
7735	schaersvoo	9462	return XLOGBASE;
7614	schaersvoo	9463	}
7735	schaersvoo	9464	if( strcmp(input_type, ylogbase) == 0 ){
		9465	free(input_type);
		9466	return YLOGBASE;
		9467	}
7614	schaersvoo	9468	if( strcmp(input_type, intooltip) == 0 ){
		9469	free(input_type);
		9470	return INTOOLTIP;
		9471	}
9329	schaersvoo	9472	if( strcmp(input_type, popup) == 0 ){
		9473	free(input_type);
		9474	return POPUP;
		9475	}
7614	schaersvoo	9476	if( strcmp(input_type,video) == 0 ){
		9477	free(input_type);
		9478	return VIDEO;
		9479	}
11772	schaersvoo	9480	if( strcmp(input_type,fillall) == 0 ){
		9481	free(input_type);
		9482	return FILLALL;
		9483	}
7614	schaersvoo	9484	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		9485	free(input_type);
		9486	return FLOODFILL;
8224	bpr	9487	}
7614	schaersvoo	9488	if( strcmp(input_type,filltoborder) == 0 ){
		9489	free(input_type);
		9490	return FILLTOBORDER;
8224	bpr	9491	}
7614	schaersvoo	9492	if( strcmp(input_type, replyformat) == 0 ){
		9493	free(input_type);
		9494	return REPLYFORMAT;
		9495	}
		9496	if( strcmp(input_type, pixelsize) == 0 ){
		9497	free(input_type);
		9498	return PIXELSIZE;
		9499	}
		9500	if( strcmp(input_type, setpixel) == 0 ){
		9501	free(input_type);
		9502	return SETPIXEL;
		9503	}
		9504	if( strcmp(input_type, pixels) == 0 ){
		9505	free(input_type);
		9506	return PIXELS;
		9507	}
		9508	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		9509	free(input_type);
		9510	return X_AXIS_STRINGS;
		9511	}
9341	schaersvoo	9512	if( strcmp(input_type, xaxisup) == 0 \|\| strcmp(input_type, xaxistextup) == 0 ){
		9513	free(input_type);
		9514	return X_AXIS_STRINGS_UP;
		9515	}
7614	schaersvoo	9516	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		9517	free(input_type);
		9518	return Y_AXIS_STRINGS;
		9519	}
		9520	if( strcmp(input_type, legend) == 0 ){
		9521	free(input_type);
		9522	return LEGEND;
		9523	}
		9524	if( strcmp(input_type, legendcolors) == 0 ){
		9525	free(input_type);
		9526	return LEGENDCOLORS;
		9527	}
		9528	if( strcmp(input_type, xlabel) == 0 ){
		9529	free(input_type);
		9530	return XLABEL;
		9531	}
		9532	if( strcmp(input_type, ylabel) == 0 ){
		9533	free(input_type);
		9534	return YLABEL;
		9535	}
8370	schaersvoo	9536	if( strcmp(input_type, bezier) == 0 ){
		9537	free(input_type);
		9538	return BEZIER;
		9539	}
7614	schaersvoo	9540	if( strcmp(input_type, animate) == 0 ){
		9541	free(input_type);
		9542	return ANIMATE;
		9543	}
9354	schaersvoo	9544	/* these are bitmap related flydraw commands...must be removed. eventually */
7614	schaersvoo	9545	if( strcmp(input_type, transparent) == 0 ){
		9546	free(input_type);
		9547	return TRANSPARENT;
		9548	}
7877	schaersvoo	9549	if( strcmp(input_type, status) == 0 \|\| strcmp(input_type, nostatus) == 0 ){
7614	schaersvoo	9550	free(input_type);
		9551	return STATUS;
		9552	}
7784	schaersvoo	9553	if( strcmp(input_type, xsnaptogrid) == 0 ){
		9554	free(input_type);
		9555	return XSNAPTOGRID;
		9556	}
		9557	if( strcmp(input_type, ysnaptogrid) == 0 ){
		9558	free(input_type);
		9559	return YSNAPTOGRID;
		9560	}
8379	schaersvoo	9561	if( strcmp(input_type, snaptogrid) == 0 ){
		9562	free(input_type);
		9563	return SNAPTOGRID;
		9564	}
		9565	if( strcmp(input_type, snaptopoints) == 0 ){
		9566	free(input_type);
		9567	return SNAPTOPOINTS;
		9568	}
9213	schaersvoo	9569	if( strcmp(input_type, snaptofunction) == 0 \|\| strcmp(input_type, snaptofun) == 0 ){
		9570	free(input_type);
		9571	return SNAPTOFUNCTION;
		9572	}
7652	schaersvoo	9573	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	9574	free(input_type);
7652	schaersvoo	9575	return USERINPUT_XY;
		9576	}
8193	schaersvoo	9577	if( strcmp(input_type, userinput_function) == 0 ){
		9578	free(input_type);
		9579	return USERINPUT_FUNCTION;
		9580	}
7663	schaersvoo	9581	if( strcmp(input_type, usertextarea_xy) == 0 ){
		9582	free(input_type);
		9583	return USERTEXTAREA_XY;
		9584	}
8222	schaersvoo	9585	if( strcmp(input_type, userinput) == 0 ){
		9586	free(input_type);
		9587	return USERINPUT;
		9588	}
8105	schaersvoo	9589	if( strcmp(input_type, angle) == 0 ){
7996	schaersvoo	9590	free(input_type);
8105	schaersvoo	9591	return ANGLE;
		9592	}
8297	schaersvoo	9593	if( strcmp(input_type, functionlabel) == 0 ){
8244	schaersvoo	9594	free(input_type);
8297	schaersvoo	9595	return FUNCTION_LABEL;
		9596	}
9213	schaersvoo	9597	if( strcmp(input_type, sliderfunction_x) == 0 ){
8297	schaersvoo	9598	free(input_type);
9213	schaersvoo	9599	return SLIDER_X;
		9600	}
		9601	if( strcmp(input_type, sliderfunction_y) == 0 ){
		9602	free(input_type);
		9603	return SLIDER_Y;
		9604	}
		9605	if( strcmp(input_type, multidraw) == 0 ){
		9606	free(input_type);
		9607	return MULTIDRAW;
		9608	}
		9609	if( strcmp(input_type, multistrokeopacity) == 0 ){
		9610	free(input_type);
		9611	return MULTISTROKEOPACITY;
		9612	}
		9613	if( strcmp(input_type, multifillopacity) == 0 ){
		9614	free(input_type);
		9615	return MULTIFILLOPACITY;
		9616	}
		9617	if( strcmp(input_type, multilinewidth) == 0 ){
		9618	free(input_type);
		9619	return MULTILINEWIDTH;
		9620	}
		9621	if( strcmp(input_type, multistrokecolors) == 0 ){
		9622	free(input_type);
		9623	return MULTISTROKECOLORS;
		9624	}
		9625	if( strcmp(input_type, multifill) == 0 ){
		9626	free(input_type);
		9627	return MULTIFILL;
		9628	}
		9629	if( strcmp(input_type, multifillcolors) == 0 ){
		9630	free(input_type);
		9631	return MULTIFILLCOLORS;
		9632	}
		9633	if( strcmp(input_type, multilabel) == 0 ){
		9634	free(input_type);
		9635	return MULTILABEL;
		9636	}
		9637	if( strcmp(input_type, multidash) == 0 ){
		9638	free(input_type);
		9639	return MULTIDASH;
		9640	}
		9641	if( strcmp(input_type, multisnaptogrid) == 0 ){
		9642	free(input_type);
		9643	return MULTISNAPTOGRID;
		9644	}
		9645	if( strcmp(input_type, multiuserinput) == 0 ){
		9646	free(input_type);
		9647	return MULTIUSERINPUT;
		9648	}
9386	schaersvoo	9649	if( strcmp(input_type, parallel) == 0 ){
		9650	free(input_type);
		9651	return PARALLEL;
		9652	}
9289	schaersvoo	9653	if( strcmp(input_type, protractor) == 0 ){
		9654	free(input_type);
		9655	return PROTRACTOR;
		9656	}
		9657	if( strcmp(input_type, ruler) == 0 ){
		9658	free(input_type);
		9659	return RULER;
		9660	}
9386	schaersvoo	9661	if( strcmp(input_type, cursor) == 0 \|\| strcmp(input_type, pointer) == 0 ){
9213	schaersvoo	9662	free(input_type);
9386	schaersvoo	9663	return CURSOR;
		9664	}
		9665	if( strcmp(input_type, sgraph) == 0 ){
		9666	free(input_type);
		9667	return SGRAPH;
		9668	}
		9669	if( strcmp(input_type, jsmath) == 0 ){
		9670	free(input_type);
		9671	return JSMATH;
		9672	}
		9673	if( strcmp(input_type, trace_jscurve) == 0 ){
		9674	free(input_type);
		9675	return TRACE_JSCURVE;
		9676	}
		9677	if( strcmp(input_type, jscurve) == 0 \|\| strcmp(input_type, jsplot) == 0 ){
		9678	free(input_type);
		9679	return JSCURVE;
		9680	}
		9681	if( strcmp(input_type, centerstring) == 0 \|\| strcmp(input_type, title) == 0 ){
		9682	free(input_type);
		9683	return CENTERSTRING;
		9684	}
		9685	if( strcmp(input_type, setlimits) == 0 ){
		9686	free(input_type);
		9687	return SETLIMITS;
		9688	}
		9689	if( strcmp(input_type, xunit) == 0 ){
		9690	free(input_type);
		9691	return XUNIT;
		9692	}
		9693	if( strcmp(input_type, yunit) == 0 ){
		9694	free(input_type);
		9695	return YUNIT;
		9696	}
		9697	if( strcmp(input_type, fill) == 0 ){
		9698	free(input_type);
		9699	return FLOODFILL;
		9700	}
		9701	if( strcmp(input_type, end) == 0){
		9702	free(input_type);
		9703	return END;
		9704	}
		9705	if( strcmp(input_type, blink) == 0 ){
		9706	free(input_type);
		9707	return BLINK;
		9708	}
		9709	if( strcmp(input_type, audio) == 0 ){
		9710	free(input_type);
		9711	return AUDIO;
		9712	}
		9713	if( strcmp(input_type, audioobject) == 0 ){
		9714	free(input_type);
		9715	return AUDIOOBJECT;
		9716	}
		9717	if( strcmp(input_type, patternfill) == 0 ){
		9718	free(input_type);
		9719	return PATTERNFILL;
		9720	}
		9721	if( strcmp(input_type, hatchfill) == 0 ){
		9722	free(input_type);
		9723	return HATCHFILL;
		9724	}
		9725	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
		9726	free(input_type);
		9727	return DIAMONDFILL;
		9728	}
		9729	if( strcmp(input_type, dotfill) == 0 ){
		9730	free(input_type);
		9731	return DOTFILL;
		9732	}
		9733	if( strcmp(input_type, gridfill) == 0 ){
		9734	free(input_type);
		9735	return GRIDFILL;
		9736	}
		9737	if( strcmp(input_type, imagefill) == 0 ){
		9738	free(input_type);
		9739	return IMAGEFILL;
		9740	}
		9741	if( strcmp(input_type, clicktile_colors) == 0 ){
		9742	free(input_type);
		9743	return CLICKTILE_COLORS;
		9744	}
		9745	if( strcmp(input_type, clicktile) == 0 ){
		9746	free(input_type);
		9747	return CLICKTILE;
		9748	}
		9749	if( strcmp(input_type, piechart) == 0 ){
		9750	free(input_type);
		9751	return PIECHART;
		9752	}
9433	schaersvoo	9753	if( strcmp(input_type, boxplot) == 0 ){
		9754	free(input_type);
		9755	return BOXPLOT;
		9756	}
9465	schaersvoo	9757	if( strcmp(input_type, boxplotdata) == 0 ){
9433	schaersvoo	9758	free(input_type);
9465	schaersvoo	9759	return BOXPLOTDATA;
9433	schaersvoo	9760	}
9465	schaersvoo	9761	if( strcmp(input_type, userboxplot) == 0 ){
		9762	free(input_type);
		9763	return USERBOXPLOT;
		9764	}
		9765	if( strcmp(input_type, userboxplotdata) == 0 ){
		9766	free(input_type);
		9767	return USERBOXPLOT;
		9768	}
9386	schaersvoo	9769	if( strcmp(input_type, barchart) == 0 ){
		9770	free(input_type);
		9771	return BARCHART;
		9772	}
		9773	if( strcmp(input_type, linegraph) == 0 ){
		9774	free(input_type);
		9775	return LINEGRAPH;
		9776	}
		9777	if( strcmp(input_type, clock) == 0 ){
		9778	free(input_type);
		9779	return CLOCK;
		9780	}
9427	schaersvoo	9781	if( strcmp(input_type, yerrorbars) == 0 ){
9386	schaersvoo	9782	free(input_type);
9427	schaersvoo	9783	return YERRORBARS;
		9784	}
		9785	if( strcmp(input_type, xerrorbars) == 0 ){
		9786	free(input_type);
		9787	return XERRORBARS;
		9788	}
11006	schaersvoo	9789	if( strcmp(input_type, canvastype) == 0 ){
9427	schaersvoo	9790	free(input_type);
11006	schaersvoo	9791	return CANVASTYPE;
		9792	}
11044	schaersvoo	9793	if( strcmp(input_type, noyaxis) == 0 ){
11006	schaersvoo	9794	free(input_type);
11044	schaersvoo	9795	return NOYAXIS;
		9796	}
		9797	if( strcmp(input_type, noxaxis) == 0 ){
		9798	free(input_type);
		9799	return NOXAXIS;
		9800	}
11767	schaersvoo	9801	if( strcmp(input_type, colorpalette) == 0 ){
11044	schaersvoo	9802	free(input_type);
11767	schaersvoo	9803	return COLORPALETTE;
		9804	}
11802	schaersvoo	9805	if( strcmp(input_type, resetoffset) == 0 ){
11767	schaersvoo	9806	free(input_type);
11802	schaersvoo	9807	return RESETOFFSET;
		9808	}
		9809	if( strcmp(input_type, xyoffset) == 0 ){
		9810	free(input_type);
		9811	return XYOFFSET;
		9812	}
		9813	if( strcmp(input_type, xoffset) == 0 \|\| strcmp(input_type, centered) == 0 ){
		9814	free(input_type);
		9815	return XOFFSET;
		9816	}
11811	schaersvoo	9817	if( strcmp(input_type, yoffset) == 0 ){
11802	schaersvoo	9818	free(input_type);
11811	schaersvoo	9819	return YOFFSET;
		9820	}
		9821	free(input_type);
7614	schaersvoo	9822	ungetc(c,infile);
		9823	return 0;
		9824	}

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c @ 17583 – Rev 11818