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

Rev	Author	Line No.	Line
7614	schaersvoo	1	/*
		2	27/7/2013 version 0.01
		3	"Inspired" by FLY program: http://martin.gleeson.com/fly
		4	*********************************************************************************
		5	* J.M. Evers 7/2013 *
		6	* This is all just amateur scriblings... So no copyrights. *
		7	* This source code file, and compiled objects derived from it, *
		8	* can be used and distributed without restriction, including for commercial use *
		9	* No warrenty whatsoever *
		10	*********************************************************************************
		11	*/
7848	bpr	12	#include "canvasdraw.h"
7614	schaersvoo	13
		14	/******************************************************************************
		15	** Internal Functions
		16	******************************************************************************/
		17	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		18	void sync_input(FILE infile);/ proceed with inputfile */
		19	void add_javascript_functions(int js_functions[], int canvas_root_id);
		20	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		21	int get_token(FILE infile); / read next char until EOL*/
8225	bpr	22	/*
7614	schaersvoo	23	int x2px(double x);
		24	int y2px(double y);
8225	bpr	25	*/
7614	schaersvoo	26	double px2x(int x);
		27	double px2y(int y);
7906	schaersvoo	28	double get_real(FILE infile,int last); / read a value; calculation and symbols allowed */
7614	schaersvoo	29	char str_replace ( const char word, const char sub_word, const char rep_word );
		30	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
7906	schaersvoo	31	char get_string(FILE infile,int last); /* get the string at the end of a command */
7614	schaersvoo	32	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		33	char convert_hex2rgb(char hexcolor);
8257	schaersvoo	34	void add_read_canvas(int canvas_root_id,int reply_format,int reply_precision);
7614	schaersvoo	35	void make_js_include(int canvas_root_id);
		36	void check_string_length(int length);/* checks if the length of string argument of command is correct */
8224	bpr	37	FILE *js_include_file;
7614	schaersvoo	38	FILE get_file(int line_number, char **filename);
		39	FILE infile; / will be stdin */
		40	/******************************************************************************
		41	** global
		42	******************************************************************************/
		43	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		44	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		45	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		46	int xsize = 320;
		47	int ysize = 320;
		48	double xmin = 0.0;
		49	double xmax = 320.0;
		50	double ymin = 0.0;
		51	double ymax = 320.0;
		52	double tmax = 2;
		53	double tmin = -2;
		54	/* flag to indicate parsing of line status */
8224	bpr	55	int done = FALSE;
7614	schaersvoo	56	int type; /* eg command number */
		57	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
8097	schaersvoo	58	int slider = 0;/* slider=1 : x-values ; slider=2 : y-values;slider=3 angle values */
7785	schaersvoo	59	int use_affine = FALSE;
7614	schaersvoo	60	int use_rotate = FALSE;
		61	int use_filled = FALSE;
		62	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
8097	schaersvoo	63
7614	schaersvoo	64	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
		65
		66	/******************************************************************************
		67	** Main Program
		68	******************************************************************************/
		69	int main(int argc, char *argv[]){
		70	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
		71	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
		72	infile = stdin;/* read flyscript via stdin */
		73	int i,c;
		74	double double_data[MAX_INT+1];
		75	int int_data[MAX_INT+1];
		76	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		77	int use_parametric = FALSE;/* will be reset after parametric plotting */
		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 */
7614	schaersvoo	84	int line_width = 1;
		85	int decimals = 2;
		86	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
		87	int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
		88	int drag_type = -1;/* 0,1,2 : xy,x,y */
		89	int use_tooltip = FALSE;
		90	char *tooltip_text = "Click here";
		91	char temp = ""; / */
		92	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		93	char *stroke_color = "255,0,0";
		94	char *fill_color = "0,255,0";
		95	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		96	char *font_color = "#00000";
		97	char *draw_type = "points";
		98	char *fly_font = "normal";
		99	char *input_style = "";
		100	char *flytext = "";
7785	schaersvoo	101	char *affine_matrix = "[1,0,0,1,0,0]";
8297	schaersvoo	102	char *function_label = "f(x)=";
7614	schaersvoo	103	int pixelsize = 1;
		104	int reply_format = 0;
		105	int input_cnt = 0;
		106	int ext_img_cnt = 0;
8071	schaersvoo	107	int slider_cnt = 0;
7614	schaersvoo	108	int font_size = 12;
8071	schaersvoo	109	int dashtype[2] = { 4 , 4 };
7614	schaersvoo	110	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		111	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
		112	int arrow_head = 8; /* size in px*/
7833	schaersvoo	113	int crosshair_size = 5; /* size in px*/
8224	bpr	114	int plot_steps = 250;
7983	schaersvoo	115	int found_size_command = 0; /* 1 = found size ; 2 = found xrange; 3 = found yrange*/
7614	schaersvoo	116	int click_cnt = 1;
		117	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		118	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
7989	schaersvoo	119	int barchart_cnt = 0; /* identifier for command 'barchart' ; multiple charts may be plotted in a single plot*/
7956	schaersvoo	120	int legend_cnt = -1; /* to allow multiple legends to be used, for multiple piecharts etc */
8074	schaersvoo	121	int reply_precision = 100; /* used for precision of student answers / drawings */
7614	schaersvoo	122	double angle = 0.0;
		123	int clickfillmarge = 20;
		124	int animation_type = 9; /* == object type curve in drag library */
7823	schaersvoo	125	int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
8112	schaersvoo	126	int use_slider_display = 0; /* in case of a slider, should we display it's value ?*/
7614	schaersvoo	127	size_t string_length = 0;
		128	double stroke_opacity = 0.8;
		129	double fill_opacity = 0.8;
		130	char *URL = "http://localhost/images";
		131	memset(buffer,'\0',MAX_BUFFER);
		132	void *tmp_buffer = "";
8224	bpr	133
7614	schaersvoo	134	/* default writing a unzipped js-include file into wims getfile directory */
		135	char *w_wims_session = getenv("w_wims_session");
8224	bpr	136	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){
7614	schaersvoo	137	canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
		138	}
		139	int L0=strlen(w_wims_session) + 21;
		140	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		141	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		142	mode_t process_mask = umask(0); /* check if file exists */
		143	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		144	if( result == 0 \|\| errno == EEXIST ){
		145	umask(process_mask); /* be sure to set correct permission */
8224	bpr	146	char *w_session = getenv("w_session");
7614	schaersvoo	147	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
		148	char getfile_cmd = my_newmem(L1); / create memory to fit string precisely */
8224	bpr	149	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	150	/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
		151	/* now write file into getfile dir*/
		152	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		153	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		154	char location = my_newmem(L2); / create memory to fit string precisely */
		155	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		156	js_include_file = fopen(location,"w");/* open the file location for writing */
		157	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		158	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		159
		160	/* ----------------------------------------------------- */
		161	/* while more lines to process */
		162
		163	while(!finished){
7983	schaersvoo	164	if(line_number>1 && found_size_command == 0){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
7614	schaersvoo	165	type = get_token(infile);
		166	done = FALSE;
		167	/*
		168	@canvasdraw
8224	bpr	169	@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...)
8262	schaersvoo	170	@General syntax <ul><li>The transparency of all objects can be controlled by command 'opacity [0-255],[0,255]'</il><li>a line based object can be controlled by command 'linewidth int'</li><li>a line based object may be dashed by using keyword 'dashed' before the object command.<br />the dashing type can be controled by command 'dashtype int,int'</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 'filled' before the object command.<br />The fill colour will be the stroke colour...(19/10/2013)</li><li> all draggable objects may have a slider 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 'drag x/y/xy'<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 zoom and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword 'onclick'<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 (in stead 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></ul>
		171	@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 />Use command 'replyformat' 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>
7614	schaersvoo	172	*/
		173	switch(type){
		174	case END:
		175	finished = 1;
		176	done = TRUE;
		177	break;
		178	case 0:
		179	sync_input(infile);
		180	break;
		181	case COMMENT:
		182	sync_input(infile);
		183	break;
		184	case EMPTY:
		185	sync_input(infile);
		186	break;
		187	case SIZE:
		188	/*
		189	@size width,height
		190	@set canvas size in pixels
		191	@mandatory first command
7906	schaersvoo	192	@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
7614	schaersvoo	193	*/
7983	schaersvoo	194	found_size_command = 1;
7614	schaersvoo	195	xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		196	ysize = (int)(abs(round(get_real(infile,1))));
		197	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		198	xmin = 0;xmax = xsize;
7647	schaersvoo	199	ymin = 0;ymax = ysize;
7614	schaersvoo	200
8224	bpr	201	/*
7614	schaersvoo	202	The sequence in which stuff is finally printed is important !!
		203	for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
		204	*/
8257	schaersvoo	205	fprintf(stdout,"\n<script type=\"text/javascript\">\
		206	if( typeof wims_status === 'undefined' ){ var wims_status = \"$status\";};\
		207	if( typeof use_dragdrop_reply === 'undefined' ){ var use_dragdrop_reply = false;};\
		208	if( typeof canvas_scripts === 'undefined' ){ var canvas_scripts = new Array();};\
		209	canvas_scripts.push(\"%d\");</script>\n\
		210	<!-- canvasdraw div and tooltip placeholder, if needed -->\n<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" ></div><div id=\"tooltip_placeholder_div%d\" style=\"display:block;margin-bottom:4px;\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\n",canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
		211	fprintf(stdout,"<!-- include actual object code via include file -->\n<script id=\"canvas_script%d\" type=\"text/javascript\" src=\"%s\"></script>\n",canvas_root_id,getfile_cmd);
8146	schaersvoo	212	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n\
8108	schaersvoo	213	\"use strict\";\n\
8146	schaersvoo	214	<!-- these variables and functions must be global -->\n\
8257	schaersvoo	215	var read_dragdrop%d;\
		216	var read_canvas%d;\
8130	schaersvoo	217	var set_clock;\
8146	schaersvoo	218	var clear_draw_area;\
8257	schaersvoo	219	var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
8146	schaersvoo	220	var userdraw_x = [];var userdraw_y = [];var userdraw_radius = [];\n\
7729	schaersvoo	221	var xsize = %d;\
		222	var ysize = %d;\
7797	schaersvoo	223	var precision = 100;\
7729	schaersvoo	224	var canvas_div = document.getElementById(\"canvas_div%d\");\
8105	schaersvoo	225	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;};\
7729	schaersvoo	226	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;};\
7990	schaersvoo	227	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);};};\
		228	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);};};\
		229	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);};};\
		230	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);};};\
8071	schaersvoo	231	function scale_x_radius(rx){return rx*xsize/(xmax - xmin);};\
		232	function scale_y_radius(ry){return ry*ysize/(ymax - ymin);};\
7729	schaersvoo	233	function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) ));};\
		234	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) ));};\
8105	schaersvoo	235	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;};\
		236	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;};\
7881	schaersvoo	237	var x_use_snap_to_grid = 0;var y_use_snap_to_grid = 0;var snap_x = 1;var snap_y = 1;\
		238	function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\
		239	function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\
7735	schaersvoo	240	var xlogbase = 10;\
		241	var ylogbase = 10;\
7729	schaersvoo	242	var use_xlogscale = 0;\
		243	var use_ylogscale = 0;\
		244	var x_strings = null;\
		245	var y_strings = null;\
		246	var use_pan_and_zoom = 0;\
7858	schaersvoo	247	var use_jsmath = 0;\
7729	schaersvoo	248	var xstart = 0;\
7996	schaersvoo	249	var ystart = 0;\
		250	var unit_x=\" \";\
8257	schaersvoo	251	var unit_y=\" \";",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);
7614	schaersvoo	252	/* default add the drag code : nearly always used ...*/
8257	schaersvoo	253	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		254
7614	schaersvoo	255	break;
		256	case XRANGE:
		257	/*
		258	@ xrange xmin,xmax
8224	bpr	259	@ if not given: 0,xsize (eg in pixels)
7614	schaersvoo	260	*/
		261	for(i = 0 ; i<2; i++){
		262	switch(i){
		263	case 0: xmin = get_real(infile,0);break;
		264	case 1: xmax = get_real(infile,1);break;
		265	default: break;
		266	}
		267	}
		268	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		269	fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
7983	schaersvoo	270	found_size_command++;
7614	schaersvoo	271	break;
		272	case YRANGE:
		273	/*
		274	@ yrange ymin,ymax
		275	@ if not given 0,ysize (eg in pixels)
		276	*/
		277	for(i = 0 ; i<2; i++){
		278	switch(i){
		279	case 0: ymin = get_real(infile,0);break;
		280	case 1: ymax = get_real(infile,1);break;
		281	default: break;
		282	}
		283	}
		284	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		285	fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
7983	schaersvoo	286	found_size_command++;
7614	schaersvoo	287	break;
		288	case TRANGE:
		289	/*
		290	@ trange tmin,tmax
		291	@ default -2,2
		292	*/
		293	use_parametric = TRUE;
		294	for(i = 0 ; i<2; i++){
		295	switch(i){
		296	case 0: tmin = get_real(infile,0);break;
		297	case 1: tmax = get_real(infile,1);break;
		298	default: break;
		299	}
		300	}
		301	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
		302	break;
		303	case LINEWIDTH:
		304	/*
		305	@ linewidth int
		306	@ default 1
		307	*/
		308	line_width = (int) (get_real(infile,1));
		309	break;
		310	case ARROWHEAD:
		311	/*
		312	@ arrowhead int
		313	@ default 8 (pixels)
		314	*/
		315	arrow_head = (int) (get_real(infile,1));
		316	break;
		317	case CROSSHAIRSIZE:
		318	/*
		319	@ crosshairsize int
		320	@ default 10 (px)
		321	*/
		322	crosshair_size = (int) (get_real(infile,1));
		323	break;
		324	case CROSSHAIR:
		325	/*
		326	@ crosshair x,y,color
		327	@ draw a single crosshair point at (x;y) in color 'color'
7956	schaersvoo	328	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
7614	schaersvoo	329	@ may be set draggable / onclick
		330	*/
		331	for(i=0;i<3;i++){
		332	switch(i){
		333	case 0: double_data[0] = get_real(infile,0);break; /* x */
		334	case 1: double_data[1] = get_real(infile,0);break; /* y */
		335	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		336	decimals = find_number_of_digits(precision);
8097	schaersvoo	337	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));\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);
7614	schaersvoo	338	click_cnt++;reset();
		339	break;
		340	default:break;
		341	}
		342	}
		343	break;
		344	case CROSSHAIRS:
		345	/*
		346	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		347	@ draw multiple crosshair points at given coordinates in color 'color'
7956	schaersvoo	348	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
7614	schaersvoo	349	@ may be set draggable / onclick individually (!)
		350	*/
		351	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		352	fill_color = stroke_color;
		353	i=0;
		354	while( ! done ){ /* get next item until EOL*/
		355	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		356	if(i%2 == 0 ){
		357	double_data[i] = get_real(infile,0); /* x */
		358	}
		359	else
		360	{
		361	double_data[i] = get_real(infile,1); /* y */
		362	}
		363	i++;
		364	}
		365	decimals = find_number_of_digits(precision);
		366	for(c=0 ; c < i-1 ; c = c+2){
8097	schaersvoo	367	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));\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);
7614	schaersvoo	368	click_cnt++;
		369	}
		370	reset();
		371	break;
		372	case POINT:
		373	/*
		374	@ point x,y,color
		375	@ draw a single point at (x;y) in color 'color'
7956	schaersvoo	376	@ use command 'linewidth int' to adust size
7614	schaersvoo	377	@ may be set draggable / onclick
8224	bpr	378	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
7614	schaersvoo	379	*/
		380	for(i=0;i<3;i++){
		381	switch(i){
		382	case 0: double_data[0] = get_real(infile,0);break; /* x */
		383	case 1: double_data[1] = get_real(infile,0);break; /* y */
		384	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		385	decimals = find_number_of_digits(precision);
8097	schaersvoo	386	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,line_width,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);
7614	schaersvoo	387	click_cnt++;break;
		388	default: break;
		389	}
		390	}
		391	reset();
		392	break;
		393	case POINTS:
		394	/*
7634	schaersvoo	395	@ points color,x1,y1,x2,y2,...,x_n,y_n
7614	schaersvoo	396	@ draw multiple points at given coordinates in color 'color'
7956	schaersvoo	397	@ use command 'linewidth int' to adust size
7614	schaersvoo	398	@ may be set draggable / onclick individually (!)
		399	*/
		400	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		401	fill_color = stroke_color;
		402	i=0;
		403	while( ! done ){ /* get next item until EOL*/
		404	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		405	if(i%2 == 0 ){
		406	double_data[i] = get_real(infile,0); /* x */
		407	}
		408	else
		409	{
		410	double_data[i] = get_real(infile,1); /* y */
		411	}
		412	i++;
		413	}
8224	bpr	414	decimals = find_number_of_digits(precision);
7614	schaersvoo	415	for(c = 0 ; c < i-1 ; c = c+2){
8097	schaersvoo	416	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],line_width,line_width,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);
7614	schaersvoo	417	click_cnt++;
		418	}
		419	reset();
		420	break;
		421	case SEGMENT:
		422	/*
		423	@ segment x1,y1,x2,y2,color
		424	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		425	@ may be set draggable / onclick
		426	*/
		427	for(i=0;i<5;i++) {
		428	switch(i){
		429	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		430	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		431	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		432	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		433	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		434	decimals = find_number_of_digits(precision);
8097	schaersvoo	435	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));\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);
7614	schaersvoo	436	click_cnt++;reset();
		437	break;
		438	default: break;
		439	}
		440	}
		441	break;
		442	case LINE:
		443	/*
		444	@ line x1,y1,x2,y2,color
		445	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		446	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		447	@ may be set draggable / onclick
		448	*/
		449	for(i=0;i<5;i++){
		450	switch(i){
		451	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		452	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		453	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		454	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		455	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		456	if( double_data[10] == double_data[12] ){ /* vertical line*/
		457	double_data[1] = xmin;
		458	double_data[3] = ymax;
		459	double_data[0] = double_data[10];
		460	double_data[2] = double_data[10];
		461	}
		462	else
		463	{
		464	if( double_data[11] == double_data[13] ){ /* horizontal line */
		465	double_data[1] = double_data[11];
		466	double_data[3] = double_data[11];
		467	double_data[0] = ymin;
		468	double_data[2] = xmax;
		469	}
		470	else
		471	{
		472	/* m */
		473	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		474	/* q */
		475	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
8224	bpr	476
7614	schaersvoo	477	/xmin,mxmin+q,xmax,mxmax+q/
8224	bpr	478
7614	schaersvoo	479	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		480	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		481	double_data[0] = xmin;
		482	double_data[2] = xmax;
		483	}
		484	}
		485	decimals = find_number_of_digits(precision);
8097	schaersvoo	486	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));\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);
7614	schaersvoo	487	click_cnt++;reset();
		488	break;
		489	}
		490	}
		491	break;
8244	schaersvoo	492	case HALFLINE:
		493	/*
		494	@ demiline x1,y1,x2,y2,color
		495	@ alternative : halfline
		496	@ draws a halfline starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex)
		497	@ may be set draggable / onclick
		498	*/
		499	for(i=0;i<5;i++){
		500	switch(i){
		501	case 0: double_data[0]= get_real(infile,0);break; /* x-values */
		502	case 1: double_data[1]= get_real(infile,0);break; /* y-values */
		503	case 2: double_data[10]= get_real(infile,0);break; /* x-values */
		504	case 3: double_data[11]= get_real(infile,0);break; /* y-values */
		505	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		506	if(double_data[0] == double_data[10]){ /* vertical halfline */
		507	if(double_data[1] < double_data[11]){
		508	double_data[3] = ymax + 1000;
		509	}
		510	else
		511	{
		512	double_data[3] = ymin - 1000;
		513	}
		514	double_data[2] = double_data[0];
		515	}
		516	else
		517	{ /* horizontal halfline*/
		518	if( double_data[1] == double_data[11] ){
		519	if( double_data[0] < double_data[10] ){
		520	double_data[2] = xmax + 1000; /* halfline to the right */
		521	}
		522	else
		523	{
		524	double_data[2] = xmin - 1000; /* halfline to the left */
		525	}
		526	double_data[3] = double_data[1];
		527	}
		528	else
		529	{
		530	/* any other halfline */
		531	/* slope */
		532	double_data[12] = (double_data[11] - double_data[1])/(double_data[10] - double_data[0]);
		533	/* const */
		534	double_data[13] = double_data[1] - double_data[12]*double_data[0];
		535	if( double_data[0] < double_data[10] ){
		536	double_data[2] = double_data[2] + 1000;
		537	}
		538	else
		539	{
		540	double_data[2] = double_data[2] - 1000;
		541	}
		542	double_data[3] = double_data[12]*double_data[2] + double_data[13];
		543	}
		544	}
		545	decimals = find_number_of_digits(precision);
		546	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));\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);
		547	click_cnt++;reset();
		548	break;
		549	}
		550	}
		551
		552	break;
8224	bpr	553	case HLINE:
7614	schaersvoo	554	/*
		555	@ hline x,y,color
		556	@ draw a horizontal line through point (x:y) in color 'color'
		557	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		558	@ may be set draggable / onclick
		559	*/
		560	for(i=0;i<3;i++) {
		561	switch(i){
		562	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		563	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		564	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		565	double_data[3] = double_data[1];
		566	decimals = find_number_of_digits(precision);
8097	schaersvoo	567	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));\n",click_cnt,onclick,drag_type,decimals,xmin,decimals,xmax,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);
7614	schaersvoo	568	click_cnt++;reset();
		569	break;
		570	}
		571	}
		572	break;
		573	case VLINE:
		574	/*
		575	@ vline x,y,color
		576	@ draw a vertical line through point (x:y) in color 'color'
		577	@ may be set draggable / onclick
		578	*/
		579	for(i=0;i<3;i++) {
		580	switch(i){
		581	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		582	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		583	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		584	double_data[2] = double_data[0];
		585	decimals = find_number_of_digits(precision);
8097	schaersvoo	586	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));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],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);
7614	schaersvoo	587	click_cnt++;reset();
		588	break;
		589	}
		590	}
		591	break;
		592	case SQUARE:
		593	/*
8071	schaersvoo	594	@ square x,y,side (px) ,color
7614	schaersvoo	595	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		596	@ use command 'fsquare x,y,side,color' for a filled square
		597	@ use command/keyword 'filled' before command 'square x,y,side,color'
		598	@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
		599	@ may be set draggable / onclick
		600	*/
		601	for(i=0;i<5;i++){
		602	switch(i){
8071	schaersvoo	603	case 0:double_data[0] = get_real(infile,0);break; /* x1-values */
		604	case 1:double_data[1] = get_real(infile,0);break; /* y1-values */
		605	case 2:double_data[2] = (int) (get_real(infile,0));break; /* width in px */
		606	case 3:
		607	stroke_color = get_color(infile,1);/* name or hex color */
7614	schaersvoo	608	decimals = find_number_of_digits(precision);
8071	schaersvoo	609	double_data[3] = double_data[0] + (xmax - xmin)*double_data[2]/xsize;
		610	double_data[4] = double_data[1] + -1(ymax - ymin)double_data[2]/ysize;
8097	schaersvoo	611	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));\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);
7614	schaersvoo	612	click_cnt++;reset();
		613	break;
		614	}
		615	}
		616	break;
		617	case ROUNDRECT:
		618	/*
		619	@ roundrect x1,y1,x2,y2,radius,color
		620	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
		621	@ use command/keyword 'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
		622	@ use command 'fillcolor color' before 'froundrect' to set the fill colour.
		623	@ may be set draggable / onclick
		624	*/
		625	for(i=0;i<6;i++){
		626	switch(i){
		627	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		628	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		629	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		630	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		631	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		632	case 5:stroke_color = get_color(infile,1);/* name or hex color */
8071	schaersvoo	633	/* ensure no inverted roundrect is produced... */
		634	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];}
8224	bpr	635	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	636	decimals = find_number_of_digits(precision);
8097	schaersvoo	637	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));\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);
7614	schaersvoo	638	click_cnt++;reset();
		639	break;
		640	}
		641	}
		642	break;
		643	case RECT:
		644	/*
		645	@ rect x1,y1,x2,y2,color
		646	@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
		647	@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
		648	@ use command 'fillcolor color' before 'frect' to set the fill colour.
		649	@ may be set draggable / onclick
		650	*/
		651	for(i=0;i<5;i++){
		652	switch(i){
		653	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		654	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		655	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		656	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		657	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		658	decimals = find_number_of_digits(precision);
8097	schaersvoo	659	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));\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);
7614	schaersvoo	660	click_cnt++;reset();
		661	break;
		662	}
		663	}
		664	break;
		665	case POLYLINE:
		666	/*
		667	@ polyline color,x1,y1,x2,y2...x_n,y_n
		668	@ may be set draggable / onclick
		669	*/
		670	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		671	i=0;
		672	c=0;
		673	while( ! done ){ /* get next item until EOL*/
		674	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		675	for( c = 0 ; c < 2; c++){
		676	if(c == 0 ){
		677	double_data[i] = get_real(infile,0);
		678	i++;
		679	}
		680	else
		681	{
		682	double_data[i] = get_real(infile,1);
		683	i++;
		684	}
		685	}
		686	}
		687	/* draw path : not closed & not filled */
		688	decimals = find_number_of_digits(precision);
8097	schaersvoo	689	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));\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);
7614	schaersvoo	690	click_cnt++;reset();
		691	break;
		692	case POLY:
		693	/*
		694	@ poly color,x1,y1,x2,y2...x_n,y_n
		695	@ draw closed polygon
		696	@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
		697	@ may be set draggable / onclick
		698	*/
		699	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		700	i=0;
		701	c=0;
		702	while( ! done ){ /* get next item until EOL*/
		703	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		704	for( c = 0 ; c < 2; c++){
		705	if(c == 0 ){
		706	double_data[i] = get_real(infile,0);
		707	i++;
		708	}
		709	else
		710	{
		711	double_data[i] = get_real(infile,1);
		712	i++;
		713	}
		714	}
		715	}
		716	/* draw path : closed & optional filled */
		717	decimals = find_number_of_digits(precision);
8097	schaersvoo	718	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));\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);
7614	schaersvoo	719	click_cnt++;reset();
		720	break;
8224	bpr	721	case ARC:
7614	schaersvoo	722	/*
		723	@ arc xc,yc,width,height,start_angle,end_angle,color
		724	@ can not be set "onclick" or "drag xy"
8105	schaersvoo	725	@ attention: width == height == radius in pixels
		726	@ will not zoom in or zoom out (because radius is given in pixels an not in x/y-system !). Panning will work
		727	@ use command 'angle' for scalable angle
7614	schaersvoo	728	*/
		729	for(i=0;i<7;i++){
		730	switch(i){
		731	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		732	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		733	case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
		734	case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
		735	case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
		736	case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
		737	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		738	/* in Shape library:
		739	x[0] = x[1] = xc
		740	y[0] = y[1] = yc
8224	bpr	741	w[0] = w[1] = radius = width = height
		742	h[0] = start_angle ; h[1] = end_engle
7614	schaersvoo	743	*/
		744	decimals = find_number_of_digits(precision);
8097	schaersvoo	745	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,12,[%.f,%.f],[%.f,%.f],[%d,%d],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],int_data[0],int_data[0],decimals,double_data[2],decimals,double_data[3],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);
7614	schaersvoo	746	reset();
		747	break;
		748	}
		749	}
		750	break;
8224	bpr	751	case ANGLE:
8105	schaersvoo	752	/*
		753	@ angle xc,yc,width,start_angle,end_angle,color
		754	@ width is in x-range
		755	@ will zoom in/out
		756	@ if size is controlled by command 'slider' use radians to set limits of slider.
		757	*/
		758	for(i=0;i<7;i++){
		759	switch(i){
		760	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		761	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		762	case 2:double_data[2] = get_real(infile,0);break; /* width in pixels ! */
		763	case 3:double_data[3] = get_real(infile,0);break; /* start angle in degrees */
		764	case 4:double_data[4] = get_real(infile,0);break; /* end angle in degrees */
		765	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		766	decimals = find_number_of_digits(precision);
		767	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));\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);
		768	reset();
		769	break;
		770	}
		771	}
		772	break;
		773
7614	schaersvoo	774	case ELLIPSE:
		775	/*
		776	@ ellipse xc,yc,radius_x,radius_y,color
8224	bpr	777	@ a ellipse with center xc/yc in x/y-range
7614	schaersvoo	778	@ radius_x and radius_y are in pixels
		779	@ may be set draggable / onclick
8224	bpr	780	@ will shrink / expand on zoom out / zoom in
7614	schaersvoo	781	*/
		782	for(i=0;i<5;i++){
		783	switch(i){
		784	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		785	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		786	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
8224	bpr	787	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
7614	schaersvoo	788	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		789	decimals = find_number_of_digits(precision);
8097	schaersvoo	790	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));\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);
7614	schaersvoo	791	click_cnt++;reset();
		792	break;
		793	}
		794	}
		795	break;
		796	case DASHTYPE:
		797	/*
		798	@ dashtype int ,int
7956	schaersvoo	799	@ When dashed is set, the objects will be drawn with this dashtyp
7614	schaersvoo	800	@ default value "dashtype 2,2"
		801	*/
		802	for(i=0;i<2;i++){
		803	switch(i){
		804	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		805	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		806	}
		807	}
		808	break;
		809	case CIRCLE:
		810	/*
		811	@ circle xc,yc,width (2*r in pixels),color
		812	@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
		813	@ use command 'fillcolor color' to set the fillcolor
		814	@ may be set draggable / onclick
8224	bpr	815	@ will shrink / expand on zoom out / zoom in
7614	schaersvoo	816	*/
		817	for(i=0;i<4;i++){
		818	switch(i){
		819	case 0: double_data[0] = get_real(infile,0);break; /* x */
		820	case 1: double_data[1] = get_real(infile,0);break; /* y */
8116	schaersvoo	821	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* for zoom in/out : radius in 'dx' xrange*/
7614	schaersvoo	822	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		823	decimals = find_number_of_digits(precision);
8097	schaersvoo	824	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));\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);
7614	schaersvoo	825	click_cnt++;reset();
		826	break;
		827	}
		828	}
		829	break;
		830	case RAYS:
		831	/*
		832	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		833	@ draw rays in color 'color' and center (xc:yc)
7786	schaersvoo	834	@ may be set draggable or onclick (every individual ray)
7614	schaersvoo	835	*/
		836	stroke_color=get_color(infile,0);
7786	schaersvoo	837	fill_color = stroke_color;
		838	double_data[0] = get_real(infile,0);/* xc */
		839	double_data[1] = get_real(infile,0);/* yc */
		840	i=2;
		841	while( ! done ){ /* get next item until EOL*/
		842	if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
		843	if(i%2 == 0 ){
		844	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	845	}
7786	schaersvoo	846	else
		847	{
		848	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	849	}
7786	schaersvoo	850	fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
		851	i++;
7614	schaersvoo	852	}
8224	bpr	853
		854	if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
		855	decimals = find_number_of_digits(precision);
7786	schaersvoo	856	for(c=2; c<i;c = c+2){
7614	schaersvoo	857	click_cnt++;
8097	schaersvoo	858	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));\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);
7614	schaersvoo	859	}
		860	reset();
		861	break;
		862	case ARROW:
		863	/*
		864	@ arrow x1,y1,x2,y2,h,color
		865	@ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		866	@ use command 'linewidth int' to adjust thickness of the arrow
		867	@ may be set draggable / onclick
		868	*/
		869	for(i=0;i<6;i++){
		870	switch(i){
		871	case 0: double_data[0] = get_real(infile,0);break; /* x */
		872	case 1: double_data[1] = get_real(infile,0);break; /* y */
		873	case 2: double_data[2] = get_real(infile,0);break; /* x */
		874	case 3: double_data[3] = get_real(infile,0);break; /* y */
		875	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		876	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		877	decimals = find_number_of_digits(precision);
8097	schaersvoo	878	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));\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);
7614	schaersvoo	879	click_cnt++;
		880	reset();
		881	break;
		882	}
		883	}
		884	break;
		885	case ARROW2:
		886	/*
		887	@ arrow2 x1,y1,x2,y2,h,color
		888	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		889	@ use command 'arrowhead int' to adjust the arrow head size
		890	@ use command 'linewidth int' to adjust thickness of the arrow
		891	@ may be set draggable / onclick
		892	*/
		893	for(i=0;i<6;i++){
		894	switch(i){
		895	case 0: double_data[0] = get_real(infile,0);break; /* x */
		896	case 1: double_data[1] = get_real(infile,0);break; /* y */
		897	case 2: double_data[2] = get_real(infile,0);break; /* x */
		898	case 3: double_data[3] = get_real(infile,0);break; /* y */
		899	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		900	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		901	decimals = find_number_of_digits(precision);
8097	schaersvoo	902	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));\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);
7614	schaersvoo	903	click_cnt++;reset();
		904	break;
		905	}
		906	}
		907	break;
8224	bpr	908	case PARALLEL:
7614	schaersvoo	909	/*
		910	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
8224	bpr	911	@ can not be set "onclick" or "drag xy"
7614	schaersvoo	912	*/
		913	for( i = 0;i < 8; i++ ){
		914	switch(i){
		915	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		916	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		917	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		918	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		919	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		920	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		921	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		922	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		923	decimals = find_number_of_digits(precision);
8097	schaersvoo	924	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));\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);
7614	schaersvoo	925	click_cnt++;reset();
		926	break;
		927	default: break;
		928	}
		929	}
		930	break;
		931	case TRIANGLE:
		932	/*
		933	@triangle x1,y1,x2,y2,x3,y3,color
7956	schaersvoo	934	@may be set draggable / onclic
7614	schaersvoo	935	*/
		936	for(i=0;i<7;i++){
		937	switch(i){
		938	case 0: double_data[0] = get_real(infile,0);break; /* x */
		939	case 1: double_data[1] = get_real(infile,0);break; /* y */
		940	case 2: double_data[2] = get_real(infile,0);break; /* x */
		941	case 3: double_data[3] = get_real(infile,0);break; /* y */
		942	case 4: double_data[4] = get_real(infile,0);break; /* x */
		943	case 5: double_data[5] = get_real(infile,0);break; /* y */
		944	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		945	decimals = find_number_of_digits(precision);
8097	schaersvoo	946	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));\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);
7614	schaersvoo	947	click_cnt++;reset();
		948	break;
		949	default: break;
		950	}
		951	}
		952	break;
		953	case LATTICE:
		954	/*
		955	@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
8224	bpr	956	@can not be set "onclick" or "drag xy"
7614	schaersvoo	957	*/
		958	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		959	for( i = 0; i<9; i++){
		960	switch(i){
		961	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		962	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		963	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
8071	schaersvoo	964	case 3: int_data[3] = (int) -1(get_real(infile,0));break; / y1-values -> y-pixels*/
7614	schaersvoo	965	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
8071	schaersvoo	966	case 5: int_data[5] = (int) -1(get_real(infile,0));break; / y2-values -> y-pixels*/
7614	schaersvoo	967	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		968	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		969	case 8: stroke_color=get_color(infile,1);
		970	decimals = find_number_of_digits(precision);
8071	schaersvoo	971	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);
7614	schaersvoo	972	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	973	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);
7614	schaersvoo	974	add_to_buffer(tmp_buffer);
		975	break;
		976	default:break;
		977	}
		978	}
		979	reset();
		980	break;
		981	case SNAPTOGRID:
		982	/*
		983	@ snaptogrid
		984	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		985	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
7784	schaersvoo	986	@ if xminor / yminor is defined, 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 />
7614	schaersvoo	987	*/
7881	schaersvoo	988	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;");
7614	schaersvoo	989	break;
7784	schaersvoo	990	case XSNAPTOGRID:
		991	/*
		992	@ xsnaptogrid
		993	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		994	@ in case of userdraw the drawn points will snap to xmajor grid
7856	schaersvoo	995	@ if xminor is defined, 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 />
7784	schaersvoo	996	*/
7881	schaersvoo	997	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 0;");
7784	schaersvoo	998	break;
		999	case YSNAPTOGRID:
		1000	/*
		1001	@ ysnaptogrid
		1002	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		1003	@ in case of userdraw the drawn points will snap to ymajor grid
7856	schaersvoo	1004	@ if yminor is defined, 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 />
7784	schaersvoo	1005	*/
7881	schaersvoo	1006	fprintf(js_include_file,"\nx_use_snap_to_grid = 0;y_use_snap_to_grid = 1;");
7784	schaersvoo	1007	break;
8222	schaersvoo	1008	case USERINPUT:
		1009	/*
		1010	@ userinput function \| textarea \| inputfield
		1011	@ alternative command + argment to keywords "userinput_function","userinput_textarea" and "userinput_xy"
		1012	@ textarea and inputfield are only usable in combination with some 'userdraw draw_ type'
		1013	@ function may be used any time (e.g. without userdraw)
8297	schaersvoo	1014	@ use command "functionlabel some_string" to define the inputfield text : default value "f(x)="
		1015	@ use command 'strokecolor some_color' to adjust the plot / functionlabel color
		1016	@ the userinput for the function will be corrected by a simple 'rawmath' implementation...
8222	schaersvoo	1017	*/
		1018	temp = get_string_argument(infile,1);
		1019	if(strstr(temp,"function") != 0 \|\| strstr(temp,"curve") != 0 \|\| strstr(temp,"plot") != 0 ){
8224	bpr	1020	if( js_function[DRAW_JSFUNCTION] != 1 ){
8297	schaersvoo	1021	add_rawmath(js_include_file);/* add simple rawmath routine to correct user input of function */
8222	schaersvoo	1022	js_function[DRAW_JSFUNCTION] = 1;
		1023	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8297	schaersvoo	1024	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]);
8222	schaersvoo	1025	input_cnt++;
		1026	}
8297	schaersvoo	1027	else
		1028	{
		1029	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
		1030	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1031	input_cnt++;
		1032	}
8222	schaersvoo	1033	if( use_js_math == FALSE){/* add this stuff only once...*/
		1034	add_to_js_math(js_include_file);
		1035	use_js_math = TRUE;
		1036	}
		1037	if( use_js_plot == FALSE){
		1038	use_js_plot = TRUE;
		1039	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1040	}
		1041	}
		1042	else
		1043	{
		1044	if(strstr(temp,"inputfield") != 0 ){
		1045	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		1046	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		1047	use_input_xy = 1;
		1048	}
		1049	else
		1050	{
		1051	if(strstr(temp,"textarea") != 0 ){
		1052	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		1053	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		1054	use_input_xy = 2;
		1055	}
		1056	else
		1057	{
		1058	canvas_error("userinput argument may be \"function,inputfield,textarea\"");
		1059	}
		1060	}
		1061	}
		1062	break;
7663	schaersvoo	1063	case USERTEXTAREA_XY:
		1064	/*
		1065	@ usertextarea_xy
8224	bpr	1066	@ keyword
7663	schaersvoo	1067	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
8224	bpr	1068	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
7663	schaersvoo	1069	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
8224	bpr	1070	@ user drawings will not zoom on zooming (or pan on panning)
7663	schaersvoo	1071	*/
7856	schaersvoo	1072	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
7956	schaersvoo	1073	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7749	schaersvoo	1074	use_input_xy = 2;
		1075	break;
7652	schaersvoo	1076	case USERINPUT_XY:
		1077	/*
		1078	@ userinput_xy
8224	bpr	1079	@ keyword
7652	schaersvoo	1080	@ to be used in combination with command "userdraw object_type,color"
8224	bpr	1081	@ 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)
7652	schaersvoo	1082	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
7749	schaersvoo	1083	@ 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.
7652	schaersvoo	1084	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
8224	bpr	1085	@ user drawings will not zoom on zooming (or pan on panning)
7652	schaersvoo	1086	*/
7749	schaersvoo	1087	/* add simple eval check to avoid code injection with unprotected eval(string) */
7856	schaersvoo	1088	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
7956	schaersvoo	1089	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7749	schaersvoo	1090	use_input_xy = 1;
		1091	break;
8297	schaersvoo	1092	case FUNCTION_LABEL:
		1093	function_label = get_string_argument(infile,1);
		1094	break;
8193	schaersvoo	1095	case USERINPUT_FUNCTION:
		1096	/*
		1097	@ userinput_function
		1098	@ keyword
		1099	@ if set , a inputfield will be added to the page
8297	schaersvoo	1100	@ repeat keyword for more function input fields
8193	schaersvoo	1101	@ the userinput value will be plotted in the canvas
		1102	@ this value may be read with 'read_canvas()'. <br />for do it yourself js-scripters : If this is the first inputfield in the script, it's id is canvas_input0
		1103	@ 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
		1104	@ incompatible with command 'intooltip link_text_or_image' : it uses the tooltip div for adding the inputfield
		1105	*/
8224	bpr	1106	if( js_function[DRAW_JSFUNCTION] != 1 ){
8193	schaersvoo	1107	js_function[DRAW_JSFUNCTION] = 1;
8297	schaersvoo	1108	add_rawmath(js_include_file);
8193	schaersvoo	1109	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8297	schaersvoo	1110	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]);
8193	schaersvoo	1111	input_cnt++;
		1112	}
8297	schaersvoo	1113	else
		1114	{
		1115	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
		1116	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1117	input_cnt++;
		1118	}
8193	schaersvoo	1119	if( use_js_math == FALSE){/* add this stuff only once...*/
		1120	add_to_js_math(js_include_file);
		1121	use_js_math = TRUE;
		1122	}
		1123	if( use_js_plot == FALSE){
		1124	use_js_plot = TRUE;
		1125	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1126	}
		1127	break;
7614	schaersvoo	1128	case USERDRAW:
		1129	/*
		1130	@ userdraw object_type,color
8244	schaersvoo	1131	@ 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</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]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</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>
7614	schaersvoo	1132	@ 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)
7956	schaersvoo	1133	@ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas.<br />while typing the background of every typed char will be lightblue..."backspace / delete / esc" will remove typed text.<br />You will need to hit "enter" to add the text to the array "userdraw_txt()" : lightblue background will disappear<br />Placing the cursor somewhere on a typed text and hitting "delete/backspace/esc" , 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
8224	bpr	1134	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
7614	schaersvoo	1135	@ note: all objects will be removed -after a javascript confirm box- when clicked on an object point with middle or right mouse butten (e.g. event.which != 1 : all buttons but left)
		1136	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
8224	bpr	1137	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
7614	schaersvoo	1138	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		1139	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
8224	bpr	1140	@ may be combined with keyword 'userinput_xy' or
7653	schaersvoo	1141	@ 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.!
7614	schaersvoo	1142	*/
		1143	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
		1144	canvas_error("Only one userdraw primitive may be used: read documentation !!");
		1145	}
8074	schaersvoo	1146	reply_precision = precision;
7614	schaersvoo	1147	use_userdraw = TRUE;
8130	schaersvoo	1148	fprintf(js_include_file,"\n<!-- begin userdraw mouse events -->\nuserdraw_x = new Array();userdraw_y = new Array();userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};if(wims_status != \"done\"){canvas_div.addEventListener(\"mousedown\",user_draw,false);canvas_div.addEventListener(\"mousemove\",user_drag,false);canvas_div.addEventListener(\"touchstart\",user_draw,false);canvas_div.addEventListener(\"touchmove\",user_drag,false);}\n<!-- end userdraw mouse events -->",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
7614	schaersvoo	1149	draw_type = get_string_argument(infile,0);
		1150	stroke_color = get_color(infile,1);
		1151	if( strcmp(draw_type,"point") == 0 ){
		1152	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1153	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	1154	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	1155	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1156	if(use_input_xy == 1){
7652	schaersvoo	1157	add_input_circle(js_include_file,1,1);
		1158	add_input_xy(js_include_file,canvas_root_id);
		1159	}
7614	schaersvoo	1160	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);
		1161	}
		1162	else
		1163	if( strcmp(draw_type,"points") == 0 ){
		1164	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1165	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	1166	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	1167	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1168	if(use_input_xy == 1){
7652	schaersvoo	1169	add_input_circle(js_include_file,1,2);
		1170	add_input_xy(js_include_file,canvas_root_id);
		1171	}
7614	schaersvoo	1172	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);
		1173	}
		1174	else
		1175	if( strcmp(draw_type,"segment") == 0 ){
		1176	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1177	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	1178	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	1179	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1180	if(use_input_xy == 1){
7652	schaersvoo	1181	add_input_segment(js_include_file,1);
		1182	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1183	}
7614	schaersvoo	1184	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1185	}
		1186	else
7663	schaersvoo	1187	if( strcmp(draw_type,"polyline") == 0 ){
		1188	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
7876	schaersvoo	1189	if(reply_format == 0){reply_format = 23;}
8071	schaersvoo	1190	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7780	schaersvoo	1191	if( use_input_xy == 1 ){
		1192	add_input_polyline(js_include_file);
		1193	add_input_xy(js_include_file,canvas_root_id);
7663	schaersvoo	1194	}
		1195	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1196	}
		1197	else
7614	schaersvoo	1198	if( strcmp(draw_type,"segments") == 0 ){
		1199	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1200	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	1201	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	1202	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1203	if(use_input_xy == 1){
7652	schaersvoo	1204	add_input_segment(js_include_file,2);
		1205	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1206	}
7614	schaersvoo	1207	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1208	}
		1209	else
		1210	if( strcmp(draw_type,"circle") == 0 ){
		1211	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1212	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	1213	/* 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	1214	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1215	if(use_input_xy == 1){
7652	schaersvoo	1216	add_input_circle(js_include_file,2,1);
		1217	add_input_xyr(js_include_file,canvas_root_id);
		1218	}
7614	schaersvoo	1219	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]);
		1220	}
		1221	else
		1222	if( strcmp(draw_type,"circles") == 0 ){
		1223	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1224	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	1225	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		1226	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	1227	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1228	if(use_input_xy == 1){
7652	schaersvoo	1229	add_input_circle(js_include_file,2,2);
		1230	add_input_xyr(js_include_file,canvas_root_id);
		1231	}
7614	schaersvoo	1232	}
		1233	else
		1234	if(strcmp(draw_type,"crosshair") == 0 ){
		1235	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	1236	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	1237	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1238	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	1239	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1240	if(use_input_xy == 1){
7654	schaersvoo	1241	add_input_crosshair(js_include_file,1);
		1242	add_input_xy(js_include_file,canvas_root_id);
		1243	}
7614	schaersvoo	1244	}
		1245	else
		1246	if(strcmp(draw_type,"crosshairs") == 0 ){
		1247	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	1248	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	1249	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1250	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	1251	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1252	if(use_input_xy == 1){
7654	schaersvoo	1253	add_input_crosshair(js_include_file,2);
		1254	add_input_xy(js_include_file,canvas_root_id);
		1255	}
7614	schaersvoo	1256	}
		1257	else
		1258	if(strcmp(draw_type,"freehandline") == 0 ){
		1259	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1260	if(reply_format == 0){reply_format = 6;}
8224	bpr	1261	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	1262	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1263	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1264	}
		1265	else
		1266	if(strcmp(draw_type,"freehandlines") == 0 ){
		1267	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1268	if(reply_format == 0){reply_format = 6;}
8224	bpr	1269	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	1270	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1271	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1272	}
		1273	else
		1274	if(strcmp(draw_type,"path") == 0 ){
		1275	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1276	if(reply_format == 0){reply_format = 6;}
8224	bpr	1277	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	1278	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1279	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1280	}
		1281	else
		1282	if(strcmp(draw_type,"paths") == 0 ){
		1283	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1284	if(reply_format == 0){reply_format = 6;}
8224	bpr	1285	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	1286	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1287	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1288	}
		1289	else
		1290	if(strcmp(draw_type,"arrows") == 0 ){
		1291	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1292	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1293	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	1294	if(use_input_xy == 1){
7654	schaersvoo	1295	add_input_arrow(js_include_file,2);
		1296	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1297	}
8071	schaersvoo	1298	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1299	}
		1300	else
7874	schaersvoo	1301	if(strcmp(draw_type,"arrows2") == 0 ){
		1302	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1303	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1304	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	1305	if(use_input_xy == 1){
7874	schaersvoo	1306	add_input_arrow(js_include_file,1);
		1307	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1308	}
8071	schaersvoo	1309	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	1310	}
		1311	else
		1312	if(strcmp(draw_type,"arrow2") == 0 ){
		1313	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1314	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1315	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	1316	if(use_input_xy == 1){
7874	schaersvoo	1317	add_input_arrow(js_include_file,1);
		1318	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1319	}
8071	schaersvoo	1320	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	1321	}
		1322	else
7614	schaersvoo	1323	if(strcmp(draw_type,"arrow") == 0 ){
		1324	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1325	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1326	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	1327	if(use_input_xy == 1){
7654	schaersvoo	1328	add_input_arrow(js_include_file,1);
		1329	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1330	}
8071	schaersvoo	1331	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1332	}
		1333	else
		1334	if(strcmp(draw_type,"polygon") == 0){
		1335	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1336	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1337	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	1338	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1339	if(use_input_xy == 2){
7780	schaersvoo	1340	add_textarea_polygon(js_include_file);
		1341	add_textarea_xy(js_include_file,canvas_root_id);
7746	schaersvoo	1342	}
7614	schaersvoo	1343	}
8224	bpr	1344	else
7614	schaersvoo	1345	if(strncmp(draw_type,"poly",4) == 0){
		1346	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		1347	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1348	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1349	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	1350	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1351	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1352	}
8224	bpr	1353	else
7614	schaersvoo	1354	if(strcmp(draw_type,"triangle") == 0){
		1355	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1356	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1357	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	1358	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1359	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1360	}
8224	bpr	1361	else
7989	schaersvoo	1362	if( strcmp(draw_type,"hline") == 0 ){
		1363	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1364	if(reply_format == 0){reply_format = 11;}
		1365	add_js_hlines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1366	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1367	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1368	}
		1369	else
		1370	if( strcmp(draw_type,"hlines") == 0 ){
		1371	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1372	if(reply_format == 0){reply_format = 11;}
		1373	add_js_hlines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1374	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1375	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1376	}
		1377	else
		1378	if( strcmp(draw_type,"vline") == 0 ){
		1379	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1380	if(reply_format == 0){reply_format = 11;}
		1381	add_js_hlines(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1382	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1383	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1384	}
		1385	else
		1386	if( strcmp(draw_type,"vlines") == 0 ){
		1387	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1388	if(reply_format == 0){reply_format = 11;}
		1389	add_js_hlines(js_include_file,4,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1390	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1391	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1392	}
		1393	else
7614	schaersvoo	1394	if( strcmp(draw_type,"line") == 0 ){
		1395	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1396	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	1397	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	1398	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1399	if( use_input_xy == 1 ){
7780	schaersvoo	1400	add_input_line(js_include_file,1);
7747	schaersvoo	1401	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1402	}
8071	schaersvoo	1403	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1404	}
		1405	else
		1406	if( strcmp(draw_type,"lines") == 0 ){
		1407	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1408	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	1409	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	1410	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1411	if( use_input_xy == 1 ){
7780	schaersvoo	1412	add_input_line(js_include_file,2);
7747	schaersvoo	1413	add_input_x1y1x2y2(js_include_file,canvas_root_id);
7746	schaersvoo	1414	}
8071	schaersvoo	1415	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1416	}
		1417	else
8244	schaersvoo	1418	if( strcmp(draw_type,"demilines") == 0 \|\| strcmp(draw_type,"demilines") == 0 ){
		1419	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1420	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		1421	if(reply_format == 0){reply_format = 11;}
		1422	add_js_demilines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1423	if( use_input_xy == 1 ){
		1424	add_input_demiline(js_include_file,2);
		1425	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1426	}
		1427	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1428	}
		1429	else
		1430	if( strcmp(draw_type,"demiline") == 0 \|\| strcmp(draw_type,"demilines") == 0 ){
		1431	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1432	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		1433	if(reply_format == 0){reply_format = 11;}
		1434	add_js_demilines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1435	if( use_input_xy == 1 ){
		1436	add_input_demiline(js_include_file,1);
		1437	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1438	}
		1439	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1440	}
		1441	else
7614	schaersvoo	1442	if( strcmp(draw_type,"rects") == 0){
		1443	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	1444	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1445	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	1446	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1447	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1448	}
8224	bpr	1449	else
7614	schaersvoo	1450	if( strcmp(draw_type,"roundrects") == 0){
		1451	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	1452	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1453	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	1454	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1455	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1456	}
8224	bpr	1457	else
7614	schaersvoo	1458	if( strcmp(draw_type,"rect") == 0){
		1459	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	1460	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1461	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	1462	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1463	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1464	}
8224	bpr	1465	else
7614	schaersvoo	1466	if( strcmp(draw_type,"roundrect") == 0){
		1467	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	1468	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1469	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	1470	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1471	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1472	}
		1473	else
8083	schaersvoo	1474	if( strcmp(draw_type,"arcs") == 0){
		1475	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		1476	if(reply_format == 0){reply_format = 25;}
		1477	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]);
		1478	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1479	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1480	}
		1481	else
8071	schaersvoo	1482	if( strcmp(draw_type,"arc") == 0){
		1483	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
8083	schaersvoo	1484	if(reply_format == 0){reply_format = 25;}
		1485	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	1486	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1487	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1488	}
		1489	else
7614	schaersvoo	1490	if( strcmp(draw_type,"text") == 0){
8224	bpr	1491	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
7876	schaersvoo	1492	if(reply_format == 0){reply_format = 17;}
8071	schaersvoo	1493	add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity);
7652	schaersvoo	1494	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1495	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1496	}
8116	schaersvoo	1497	else
		1498	if( strcmp(draw_type,"inputs") == 0){
8224	bpr	1499	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	1500	if(reply_format == 0){reply_format = 27;}
8116	schaersvoo	1501	add_js_inputs(js_include_file,canvas_root_id,2,input_cnt,input_style,line_width);
		1502	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1503	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1504	}
		1505	else
		1506	if( strcmp(draw_type,"input") == 0){
8224	bpr	1507	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	1508	if(reply_format == 0){reply_format = 27;}
8116	schaersvoo	1509	add_js_inputs(js_include_file,canvas_root_id,1,input_cnt,input_style,line_width);
		1510	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1511	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1512	}
8193	schaersvoo	1513	else
7614	schaersvoo	1514	{
		1515	canvas_error("unknown drawtype or typo? ");
		1516	}
		1517	reset();
		1518	break;
		1519	case PLOTSTEPS:
		1520	/*
		1521	@ plotsteps a_number
		1522	@ default 150
		1523	@ use with care !
		1524	*/
		1525	plot_steps = (int) (get_real(infile,1));
		1526	break;
		1527	case FONTSIZE:
		1528	/*
		1529	@fontsize font_size
		1530	@default value 12
		1531	*/
		1532	font_size = (int) (get_real(infile,1));
		1533	break;
		1534	case FONTCOLOR:
		1535	/*
		1536	@fontcolor color
		1537	@color: hexcolor or colorname
		1538	@default: black
		1539	@example usage: x/y-axis text
		1540	*/
		1541	font_color = get_color(infile,1);
		1542	break;
		1543	case ANIMATE:
		1544	/*
		1545	@animate type
8109	schaersvoo	1546	@REMOVED : this should be done with a slider
7614	schaersvoo	1547	@type may be "point" (nothing else , yet...)
		1548	@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		1549	@will animate a point on the next plot/curve command
		1550	@the curve will not be draw
		1551	@moves repeatedly from xmin to xmax
		1552	*/
		1553	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
		1554	break;
7788	schaersvoo	1555	case LEVELCURVE:
		1556	/*
		1557	@levelcurve color,expression in x/y,l1,l2,...
7792	schaersvoo	1558	@draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
		1559	@the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
		1560	@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
		1561	@note : the arrays for holding the javascript data are limited in size
		1562	@note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
7788	schaersvoo	1563	*/
7792	schaersvoo	1564	fill_color = get_color(infile,0);
7788	schaersvoo	1565	char *fun1 = get_string_argument(infile,0);
		1566	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1567	i = 0;
		1568	done = FALSE;
		1569	while( !done ){
		1570	double_data[i] = get_real(infile,1);
		1571	i++;
		1572	}
		1573	for(c = 0 ; c < i; c++){
8097	schaersvoo	1574	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));\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);
7788	schaersvoo	1575	click_cnt++;
		1576	}
		1577	reset();
		1578	break;
7858	schaersvoo	1579	case TRACE_JSCURVE:
7823	schaersvoo	1580	/*
7858	schaersvoo	1581	@trace_jscurve some_math_function
7823	schaersvoo	1582	@will use a crosshair to trace the jsmath curve
7856	schaersvoo	1583	@two inputfields will display the current x/y-values (numerical evaluation by javascript)
8224	bpr	1584	@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
7823	schaersvoo	1585	@use linewidth,strokecolor,crosshairsize to adjust the corsshair.
7858	schaersvoo	1586	@the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead 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...
7823	schaersvoo	1587	*/
		1588	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7833	schaersvoo	1589	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7858	schaersvoo	1590	if( use_js_math == FALSE){
		1591	add_to_js_math(js_include_file);
		1592	use_js_math = TRUE;
		1593	}
7823	schaersvoo	1594	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);
		1595	break;
		1596	case JSMATH:
		1597	/*
7858	schaersvoo	1598	@jsmath some_math_function
7856	schaersvoo	1599	@will calculate an y-value from a userinput x-value and draws a crosshair on these coordinates.
8224	bpr	1600	@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
7858	schaersvoo	1601	@example: jsmath sin(x^2)
		1602	@the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead 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...
7823	schaersvoo	1603	*/
		1604	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7858	schaersvoo	1605	if( use_js_math == FALSE){
		1606	add_to_js_math(js_include_file);
		1607	use_js_math = TRUE;
		1608	}
7823	schaersvoo	1609	add_calc_y(js_include_file,canvas_root_id,get_string(infile,1));
		1610	break;
7858	schaersvoo	1611	case JSCURVE:
		1612	/*
		1613	@jscurve color,formula(x)
		1614	@your function will be plotted by the javascript engine of the client browser.
7983	schaersvoo	1615	@use only basic math in your curve:<br /> sqrt,^,asin,acos,atan,log,pi,abs,sin,cos,tan,e
7858	schaersvoo	1616	@use parenthesis and rawmath : use 2*x in stead of 2x ; use 2^(sin(x))...etc etc<br />use error console to debug any errors...
7981	schaersvoo	1617	@Attention : last "precision" command in the canvasdraw script determines the calculation precision of the javascript curve plot !
7858	schaersvoo	1618	@no validity check is done by wims.
		1619	@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
		1620	@use command 'trace_jscurve formula(x)` for tracing
		1621	@use commmand 'jsmath formula(x)` for calculating and displaying indiviual points on the curve
		1622	@can not be set draggable / onclick (yet)
8224	bpr	1623	@commands plotjump / plotstep are not active for 'jscurve'
7858	schaersvoo	1624	*/
		1625	stroke_color = get_color(infile,0);
		1626	if( use_js_math == FALSE){/* add this stuff only once...*/
		1627	add_to_js_math(js_include_file);
		1628	use_js_math = TRUE;
		1629	}
		1630	if( use_js_plot == FALSE){
		1631	use_js_plot = TRUE;
		1632	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1633	}
		1634	temp = get_string_argument(infile,1);
		1635	string_length = snprintf(NULL,0, "jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1636	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1637	snprintf(tmp_buffer,string_length,"jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1638	add_to_buffer(tmp_buffer);
		1639	use_js_plot++; /* we need to create multiple canvasses, so we may zoom and pan ?? */
		1640
		1641	break;
7614	schaersvoo	1642	case CURVE:
		1643	/*
		1644	@curve color,formula(x)
		1645	@plot color,formula(x)
		1646	@use command trange before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1647	@use command "precision" to increase the number of digits of the plotted points
		1648	@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
		1649	@may be set draggable / onclick
		1650	*/
		1651	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1652	use_parametric = FALSE;
		1653	stroke_color = get_color(infile,0);
		1654	char *fun1 = get_string_argument(infile,0);
		1655	char *fun2 = get_string_argument(infile,1);
		1656	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
8097	schaersvoo	1657	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));\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);
7614	schaersvoo	1658	click_cnt++;
		1659	}
		1660	else
		1661	{
		1662	stroke_color = get_color(infile,0);
		1663	char *fun1 = get_string_argument(infile,1);
8224	bpr	1664	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
8097	schaersvoo	1665	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));\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);
7614	schaersvoo	1666	click_cnt++;
		1667	}
7788	schaersvoo	1668	animation_type = 9;/* reset to curve plotting without animation */
7614	schaersvoo	1669	reset();
		1670	break;
		1671	case FLY_TEXT:
		1672	/*
		1673	@ text fontcolor,x,y,font,text_string
		1674	@ font may be described by keywords : giant,huge,normal,small,tiny
8224	bpr	1675	@ use command 'fontsize' to increase base fontsize for these keywords
7614	schaersvoo	1676	@ may be set "onclick" or "drag xy"
		1677	@ backwards compatible with flydraw
		1678	@ unicode supported: text red,0,0,huge,\\u2232
7874	schaersvoo	1679	@ use command 'string' combined with 'fontfamily' for a more fine grained control over html5 canvas text element
		1680	@ 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.
7614	schaersvoo	1681	*/
		1682	for(i = 0; i < 5 ;i++){
		1683	switch(i){
		1684	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		1685	case 1: double_data[0] = get_real(infile,0);break; /* x */
		1686	case 2: double_data[1] = get_real(infile,0);break; /* y */
		1687	case 3: fly_font = get_string_argument(infile,0);
		1688	if(strcmp(fly_font,"giant") == 0){
		1689	font_size = (int)(font_size + 24);
		1690	}
		1691	else
		1692	{
		1693	if(strcmp(fly_font,"huge") == 0){
		1694	font_size = (int)(font_size + 14);
		1695	}
		1696	else
		1697	{
		1698	if(strcmp(fly_font,"large") == 0){
		1699	font_size = (int)(font_size + 6);
		1700	}
		1701	else
		1702	{
		1703	if(strcmp(fly_font,"small") == 0){
		1704	font_size = (int)(font_size - 4);
		1705	if(font_size<0){font_size = 8;}
		1706	}
		1707	}
		1708	}
		1709	}
		1710	break; /* font_size ! */
8224	bpr	1711	case 4:
7614	schaersvoo	1712	temp = get_string_argument(infile,1);
		1713	decimals = find_number_of_digits(precision);
8097	schaersvoo	1714	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));\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);
7614	schaersvoo	1715	click_cnt++;reset();break;
		1716	default:break;
		1717	}
		1718	}
		1719	break;
		1720	case FLY_TEXTUP:
		1721	/*
		1722	@ textup fontcolor,x,y,font,text_string
		1723	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1724	@ font may be described by keywords : giant,huge,normal,small,tiny
8224	bpr	1725	@ use command 'fontsize' to increase base fontsize for the keywords
7614	schaersvoo	1726	@ backwards compatible with flydraw
		1727	@ unicode supported: textup red,0,0,huge,\\u2232
		1728	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
7874	schaersvoo	1729	@ 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.
7614	schaersvoo	1730	*/
8224	bpr	1731	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
7614	schaersvoo	1732	for(i = 0; i<5 ;i++){
		1733	switch(i){
		1734	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1735	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1736	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1737	case 3: fly_font = get_string_argument(infile,0);
		1738	if(strcmp(fly_font,"giant") == 0){
		1739	font_size = (int)(font_size + 24);
		1740	}
		1741	else
		1742	{
		1743	if(strcmp(fly_font,"huge") == 0){
		1744	font_size = (int)(font_size + 14);
		1745	}
		1746	else
		1747	{
		1748	if(strcmp(fly_font,"large") == 0){
		1749	font_size = (int)(font_size + 6);
		1750	}
		1751	else
		1752	{
		1753	if(strcmp(fly_font,"small") == 0){
		1754	font_size = (int)(font_size - 4);
		1755	if(font_size<0){font_size = 8;}
		1756	}
		1757	}
		1758	}
		1759	}
		1760	break; /* font_size ! */
8224	bpr	1761	case 4:
7614	schaersvoo	1762	decimals = find_number_of_digits(precision);
		1763	temp = get_string_argument(infile,1);
8071	schaersvoo	1764	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1765	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	1766	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1767	add_to_buffer(tmp_buffer);
		1768	break;
		1769	default:break;
		1770	}
		1771	}
		1772	reset();
		1773	break;
		1774	case FONTFAMILY:
		1775	/*
		1776	@ fontfamily font_description
		1777	@ set the font family; for browsers that support it
		1778	@ font_description: Ariel ,Courier, Helvetica etc
		1779	@ 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
		1780	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1781	*/
		1782	font_family = get_string(infile,1);
		1783	break;
		1784	case STRINGUP:
8224	bpr	1785	/*
		1786	@ stringup color,x,y,rotation_degrees,the text string
7614	schaersvoo	1787	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1788	@ unicode supported: stringup red,0,0,45,\\u2232
		1789	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		1790
		1791	*/
		1792	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		1793	for(i=0;i<6;i++){
		1794	switch(i){
		1795	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1796	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1797	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1798	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		1799	case 4: decimals = find_number_of_digits(precision);
		1800	temp = get_string_argument(infile,1);
8071	schaersvoo	1801	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\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);
7614	schaersvoo	1802	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	1803	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\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);
7614	schaersvoo	1804	add_to_buffer(tmp_buffer);
		1805	break;
		1806	default:break;
		1807	}
		1808	}
		1809	reset();
		1810	break;
		1811	case STRING:
8224	bpr	1812	/*
7614	schaersvoo	1813	@ string color,x,y,the text string
		1814	@ may be set "onclick" or "drag xy"
		1815	@ unicode supported: string red,0,0,\\u2232
8224	bpr	1816	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
7614	schaersvoo	1817	*/
		1818	for(i=0;i<5;i++){
		1819	switch(i){
		1820	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1821	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		1822	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		1823	case 3: decimals = find_number_of_digits(precision);
		1824	temp = get_string_argument(infile,1);
		1825	decimals = find_number_of_digits(precision);
8097	schaersvoo	1826	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));\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);
7614	schaersvoo	1827	click_cnt++;reset();break;
		1828	default:break;
		1829	}
		1830	}
		1831	break;
7983	schaersvoo	1832	case CENTERSTRING:
8224	bpr	1833	/*
7983	schaersvoo	1834	@ centerstring color,y-value,the text string
7984	schaersvoo	1835	@ title color,y-value,the text string
7983	schaersvoo	1836	@ draw a string centered on the canvas at y = y-value
		1837	@ can not set "onclick" or "drag xy" (...)
		1838	@ unicode supported: centerstring red,5,\\u2232
8224	bpr	1839	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
7983	schaersvoo	1840	*/
		1841	if( js_function[DRAW_CENTERSTRING] != 1 ){ js_function[DRAW_CENTERSTRING] = 1;}
		1842	for(i=0;i<3;i++){
		1843	switch(i){
		1844	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1845	case 1: double_data[0] = get_real(infile,0);break; /* y in xrange*/
		1846	case 2: temp = get_string_argument(infile,1);
		1847	/* draw_text = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text) */
		1848	decimals = find_number_of_digits(precision);
		1849	string_length = snprintf(NULL,0,
		1850	"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		1851	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1852	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);
		1853	add_to_buffer(tmp_buffer);
		1854	break;
		1855	default:break;
		1856	}
		1857	}
		1858	break;
7614	schaersvoo	1859	case MATHML:
		1860	/*
		1861	@ mathml x1,y1,x2,y2,mathml_string
8224	bpr	1862	@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
7614	schaersvoo	1863	@ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
8224	bpr	1864	@ 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 />attention: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
7614	schaersvoo	1865	@ 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....
8224	bpr	1866
7614	schaersvoo	1867	*/
		1868	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1869	for(i=0;i<5;i++){
		1870	switch(i){
		1871	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1872	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1873	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1874	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1875	case 4: decimals = find_number_of_digits(precision);
8224	bpr	1876	if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
7614	schaersvoo	1877	temp = get_string(infile,1);
		1878	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1879	string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,%d,%d,\"%s\",%d);\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp,onclick);
		1880	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1881	snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,%d,%d,\"%s\",%d);\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp,onclick);
		1882	add_to_buffer(tmp_buffer);
8224	bpr	1883	/*
		1884	in case inputs are present , trigger adding the read_mathml()
7614	schaersvoo	1885	if no other reply_format is defined
		1886	note: all other reply types will include a reading of elements with id='mathml'+p)
		1887	*/
		1888	if(strstr(temp,"mathml0") != NULL){
7876	schaersvoo	1889	if(reply_format == 0 ){reply_format = 16;} /* no other reply type is defined */
7614	schaersvoo	1890	}
		1891	break;
		1892	default:break;
		1893	}
		1894	}
		1895	reset();
		1896	break;
		1897	case HTTP:
		1898	/*
		1899	@http x1,y1,x2,y2,http://some_adress.com
8224	bpr	1900	@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
7614	schaersvoo	1901	@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1902	@can not be 'set onclick' or 'drag xy'
		1903	*/
8224	bpr	1904	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
7614	schaersvoo	1905	for(i=0;i<5;i++){
		1906	switch(i){
		1907	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1908	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1909	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1910	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1911	case 4: decimals = find_number_of_digits(precision);
		1912	temp = get_string(infile,1);
		1913	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1914	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);
		1915	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1916	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);
		1917	add_to_buffer(tmp_buffer);
		1918	break;
		1919	}
		1920	}
		1921	reset();
		1922	break;
		1923	case HTML:
		1924	/*
		1925	@ html x1,y1,x2,y2,html_string
		1926	@ all tags are allowed
		1927	@ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1928	@ if inputfields are incorporated (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_canvas(); <br />If other inputfields (command input / command textarea) or userdraw is performed, these values will NOT be read as well.
8224	bpr	1929
7614	schaersvoo	1930	note: uses the same code as 'mathml'
		1931	*/
		1932	break;
		1933	case X_AXIS_STRINGS:
		1934	/*
		1935	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1936	@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1937	@ use these x-axis values in stead of default xmin...xmax
		1938	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1939	@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
		1940	@ 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
		1941	@ example:<br />size 400,400<br />xrange -5pi,5pi<br />yrange -100,500<br />axis<br />xaxis -4pi:-4\\u03c0:-3pi:-3\\u03c0:-2pi:-2\\u03c0:-1pi:-\\u03c0:0:0:pi:\\u03c0:2pi:2\\u03c01:3pi:3\\u03c0:4*pi:4\\u03c0<br />#'xmajor' steps should be synchronised with numbers eg. "1" in this example<br />grid pi,1,grey,1,3,6,grey
		1942	*/
		1943	temp = get_string(infile,1);
		1944	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1945	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1946	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		1947	use_axis_numbering = 1;
		1948	break;
		1949	case Y_AXIS_STRINGS:
		1950	/*
		1951	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1952	@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1953	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1954	@ use these y-axis values in stead of default ymin...ymax
		1955	@ 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
		1956	*/
		1957	temp = get_string(infile,1);
		1958	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1959	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1960	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		1961	use_axis_numbering = 1;
		1962	break;
8224	bpr	1963
7614	schaersvoo	1964	case AXIS_NUMBERING:
		1965	/*
8224	bpr	1966	@ axisnumbering
8101	schaersvoo	1967	@ keyword, no arguments required
7614	schaersvoo	1968	*/
		1969	use_axis_numbering = 1;
		1970	break;
		1971	case AXIS:
		1972	/*
		1973	@ axis
8101	schaersvoo	1974	@ keyword, no arguments required
7614	schaersvoo	1975
		1976	*/
		1977	use_axis = TRUE;
		1978	break;
8101	schaersvoo	1979	case KILLSLIDER:
		1980	/*
		1981	@ killslider
		1982	@ keyword, no arguments required
		1983	@ ends grouping of object under a preciously defined slider
		1984	*/
		1985	slider = 0;
		1986	break;
8071	schaersvoo	1987	case SLIDER:
		1988	/*
8097	schaersvoo	1989	@ slider start_value,end_value,width px,height px,type,label
		1990	@ type: xy,x,y,angle
8112	schaersvoo	1991	@ if a value display is desired, use<br />type:xy display,x display,y display,angle radian,angle degree
		1992	@ is a unit for x / y value display is needed, use commands 'xunit' and / or 'yunit'
8101	schaersvoo	1993	@ use commmand 'slider' before draggable/clickable objects.
		1994	@ 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'
8097	schaersvoo	1995	@ amount of sliders is not limited.
8101	schaersvoo	1996	@ javascript:read_dragdrop(); will return an array with 'object_number:slider_value'
8097	schaersvoo	1997	@ type=xy: will produce a 2D 'slider' [rectangle width x heigh px] in your web page
		1998	@ every draggable object may have it's own slider (no limit in amount of sliders)
8071	schaersvoo	1999	@ label: some slider text
		2000	@ use fillcolor for slider ball
		2001	@ use strokecolor for slider bar
8097	schaersvoo	2002	@ use fontfamily / fontcolor to set used fonts
8071	schaersvoo	2003	@ use opacity (only fill opacity will be used) to set transparency
8111	schaersvoo	2004	@ the slider canvas will be added to the 'tooltip div' : so incompatible with command tooltip ; setlimits etc
8071	schaersvoo	2005	*/
		2006	for(i=0; i<6 ; i++){
		2007	switch(i){
		2008	case 0: double_data[0] = get_real(infile,0);break; /* start value */
		2009	case 1: double_data[1] = get_real(infile,0);break; /* end value */
		2010	case 2: int_data[0] = (int)(get_real(infile,0));break; /* width */
		2011	case 3: int_data[1] = (int)(get_real(infile,0));break; /* height */
8111	schaersvoo	2012	case 4: temp = get_string_argument(infile,0); /* type : xy,x,y,angle */
8112	schaersvoo	2013	/* xy display*/
		2014	if(strstr(temp,"xy")!= 0){
8097	schaersvoo	2015	slider = 4;
		2016	}
		2017	else
		2018	{
8112	schaersvoo	2019	if(strstr(temp,"x") != 0){
8097	schaersvoo	2020	slider = 1;
		2021	}
		2022	else
		2023	{
8112	schaersvoo	2024	if(strstr(temp,"y") != 0){
8097	schaersvoo	2025	slider = 2;
		2026	}
		2027	else
		2028	{
8112	schaersvoo	2029	if(strstr(temp,"angle") != 0){ /* angle diplay radian */
8097	schaersvoo	2030	slider = 3;
		2031	}
		2032	else
8112	schaersvoo	2033	{
8097	schaersvoo	2034	canvas_error("slider types may be : x , y , xy , angle");
8112	schaersvoo	2035	}
8097	schaersvoo	2036	}
		2037	}
		2038	}
8112	schaersvoo	2039	if(strstr(temp,"display")!=0){
		2040	use_slider_display = 1; /* show x xy values in canvas window */
		2041	}
		2042	else
		2043	{
		2044	if(strstr(temp,"degree")!= 0){
		2045	use_slider_display = 2; /* show angle values in canvas window */
		2046	}
		2047	else
		2048	{
		2049	if(strstr(temp,"radian")!=0){
		2050	use_slider_display = 3; /* show radian values in canvas window */
		2051	}
		2052	}
		2053	}
		2054	if(use_slider_display != 0 && slider_cnt == 0){ /add just once the display js-code /
		2055	add_slider_display(js_include_file,canvas_root_id,precision,font_size,font_color,stroke_opacity);
		2056	}
8097	schaersvoo	2057	break;
		2058	case 5: /* some string used for slider description */
8071	schaersvoo	2059	slider_cnt++;
8097	schaersvoo	2060	if(slider == 4){
8112	schaersvoo	2061	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 );
8097	schaersvoo	2062	}else{
8112	schaersvoo	2063	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);
8097	schaersvoo	2064	}
8071	schaersvoo	2065	break;
		2066	}
8097	schaersvoo	2067	}
8071	schaersvoo	2068	break;
7654	schaersvoo	2069	case SGRAPH:
		2070	/*
		2071	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		2072	@ primitive implementation of a 'broken scale' graph...
7976	schaersvoo	2073	@ 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 />
8224	bpr	2074	@ 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
7654	schaersvoo	2075	*/
8224	bpr	2076	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
7654	schaersvoo	2077	for(i = 0 ; i < 8 ;i++){
		2078	switch(i){
		2079	case 0:double_data[0] = get_real(infile,0);break;
		2080	case 1:double_data[1] = get_real(infile,0);break;
		2081	case 2:double_data[2] = get_real(infile,0);break;
		2082	case 3:double_data[3] = get_real(infile,0);break;
		2083	case 4:int_data[0] = (int)(get_real(infile,0));break;
		2084	case 5:int_data[1] = (int)(get_real(infile,0));break;
		2085	case 6:stroke_color = get_color(infile,0);break;
		2086	case 7:font_color = get_color(infile,1);
7658	schaersvoo	2087	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);
7654	schaersvoo	2088	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7658	schaersvoo	2089	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);
7654	schaersvoo	2090	add_to_buffer(tmp_buffer);
		2091	break;
		2092	default:break;
		2093	}
		2094	}
		2095	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
		2096	break;
7614	schaersvoo	2097	case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
		2098	/*
		2099	@ grid step_x,step_y,gridcolor
		2100	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		2101	@ if keywords "axis" or "axisnumbering" 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
7654	schaersvoo	2102	@ 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)
7614	schaersvoo	2103	@ can not be set "onclick" or "drag xy"
		2104	@ use commands 'xlabel some_string' and/or 'ylabel some_string' to label axis;<br />use command "fontsize" to adjust size (the font family is non-configurable 'italic your_fontsize px Ariel')
		2105	@ see commands "xaxis" or "xaxistext", "yaxis" or "yaxistext" to set tailormade values on axis (the used font is set by command fontfamily; default '12px Ariel')
		2106	@ see command "legend" to set a legend for the graph ;<br />use command "fontsize" to adjust size (the font family is non-configurable 'bold your_fontsize px Ariel')
		2107	*/
7729	schaersvoo	2108	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
7614	schaersvoo	2109	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		2110	for(i=0;i<4;i++){
		2111	switch(i){
		2112	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		2113	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		2114	case 2:
		2115	if( use_axis == TRUE ){
		2116	stroke_color = get_color(infile,0);
		2117	done = FALSE;
		2118	int_data[0] = (int) (get_real(infile,0));/* xminor */
		2119	int_data[1] = (int) (get_real(infile,0));/* yminor */
		2120	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		2121	fill_color = get_color(infile,1); /* used as axis_color*/
		2122	}
		2123	else
		2124	{
		2125	int_data[0] = 1;
		2126	int_data[1] = 1;
		2127	stroke_color = get_color(infile,1);
		2128	fill_color = stroke_color;
		2129	}
		2130	if( double_data[0] <= 0 \|\| double_data[1] <= 0 \|\| int_data[0] <= 0 \|\| int_data[1] <= 0 ){canvas_error("major or minor tickt must be positive !");}
7634	schaersvoo	2131	/* set snap_x snap_y values in pixels */
7988	schaersvoo	2132	fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
8071	schaersvoo	2133	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);
7614	schaersvoo	2134	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	2135	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);
7614	schaersvoo	2136	add_to_buffer(tmp_buffer);
		2137	break;
		2138	}
		2139	}
		2140	reset();
		2141	break;
		2142	case OPACITY:
		2143	/*
		2144	@ opacity 0-255,0-255
		2145	@
		2146	*/
		2147	for(i = 0 ; i<2;i++){
		2148	switch(i){
		2149	case 0: double_data[0]=(int)(get_real(infile,0));break;
		2150	case 1: double_data[1]=(int)(get_real(infile,1));break;
		2151	default: break;
		2152	}
		2153	}
		2154	if( double_data[0] < 0 \|\| double_data[0] > 255 \|\| double_data[1] < 0 \|\| double_data[1] > 255 ){ canvas_error("opacity [0 - 255] , [0 - 255]");}/* typo or non-RGB ? */
		2155	stroke_opacity = (double) (0.0039215double_data[0]);/ 0.0 - 1.0 */
		2156	fill_opacity = (double) (0.0039215double_data[1]);/ 0.0 - 1.0 */
		2157	break;
		2158	case ROTATE:
		2159	/*
		2160	@rotate rotation_angle
8097	schaersvoo	2161	@angle in degrees
7614	schaersvoo	2162	*/
		2163	use_rotate = TRUE;
8097	schaersvoo	2164	angle = -1(get_real(infile,1));/ -1 : to be compatible with Flydraw... */
7614	schaersvoo	2165	break;
7785	schaersvoo	2166	case KILLAFFINE:
		2167	/*
		2168	@ killaffine
		2169	@ keyword : resets the transformation matrix to 1,0,0,1,0,0
		2170	*/
		2171	use_affine = FALSE;
8224	bpr	2172	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
7785	schaersvoo	2173	break;
		2174	case AFFINE:
		2175	/*
		2176	@affine a,b,c,d,tx,ty
8224	bpr	2177	@ defines a transformation matrix for subsequent objects
7785	schaersvoo	2178	@ use keyword 'killaffine' to end the transformation
		2179	@ note 1: only 'draggable' / 'noclick' objects can be transformed.
		2180	@ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
		2181	@ note 3: no matrix operations on the transformation matrix implemented (yet)
		2182	@ a : Scales the drawings horizontally
		2183	@ b : Skews the drawings horizontally
		2184	@ c : Skews the drawings vertically
		2185	@ d : Scales the drawings vertically
8071	schaersvoo	2186	@ tx: Moves the drawings horizontally in xrange coordinate system
8224	bpr	2187	@ ty: Moves the drawings vertically in yrange coordinate system
8071	schaersvoo	2188	@ the data precision is 2 decimals (printf : %2.f)
7785	schaersvoo	2189	*/
		2190	for(i = 0 ; i<6;i++){
		2191	switch(i){
		2192	case 0: double_data[0] = get_real(infile,0);break;
		2193	case 1: double_data[1] = get_real(infile,0);break;
		2194	case 2: double_data[2] = get_real(infile,0);break;
		2195	case 3: double_data[3] = get_real(infile,0);break;
8071	schaersvoo	2196	case 4: double_data[4] = get_real(infile,0);break;
		2197	case 5: double_data[5] = get_real(infile,1);
7785	schaersvoo	2198	use_affine = TRUE;
8071	schaersvoo	2199	string_length = snprintf(NULL,0, "[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]xsize/(xmax - xmin),-1double_data[5]*ysize/(ymax - ymin));
7785	schaersvoo	2200	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
8224	bpr	2201	snprintf(affine_matrix,string_length,"[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]xsize/(xmax - xmin),-1double_data[5]*ysize/(ymax - ymin));
8071	schaersvoo	2202	break;
7785	schaersvoo	2203	default: break;
		2204	}
		2205	}
		2206	break;
7614	schaersvoo	2207	case KILLTRANSLATION:
		2208	/*
		2209	killtranslation
		2210	*/
8071	schaersvoo	2211	use_affine = FALSE;
8224	bpr	2212	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
7614	schaersvoo	2213	break;
		2214	case TRANSLATION:
		2215	/*
		2216	@translation tx,ty
8071	schaersvoo	2217	@will translate the next object tx in xrange and ty in yrange
		2218	@uase command 'killtranstation' to end the command
7614	schaersvoo	2219	*/
8071	schaersvoo	2220	for(i = 0 ; i<2;i++){
		2221	switch(i){
		2222	case 0: double_data[0] = get_real(infile,0);break;
		2223	case 1: double_data[1] = get_real(infile,1);
		2224	use_affine = TRUE;
		2225	string_length = snprintf(NULL,0, "[1,0,0,1,%.2f,%.2f] ",double_data[0]xsize/(xmax - xmin),-1double_data[1]*ysize/(ymax - ymin));
		2226	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		2227	snprintf(affine_matrix,string_length,"[1,0,0,1,%.2f,%.2f] ",double_data[0]xsize/(xmax - xmin),-1double_data[1]*ysize/(ymax - ymin));
		2228	break;
		2229	default: break;
		2230	}
		2231	}
		2232	break;
		2233
7614	schaersvoo	2234	case DASHED:
		2235	/*
		2236	@ keyword "dashed"
		2237	@ next object will be drawn with a dashed line
		2238	@ change dashing scheme by using command "dashtype int,int)
		2239	*/
		2240	use_dashed = TRUE;
		2241	break;
		2242	case FILLED:
		2243	/*
8224	bpr	2244	@ keyword "filled"
		2245	@ the next 'fillable' object (only) will be filled
7614	schaersvoo	2246	@ use command "fillcolor color" to set fillcolor
		2247	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		2248	@ 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 !
		2249	*/
		2250	use_filled = TRUE;
		2251	break;
		2252	case STYLE:
		2253	/*
		2254	@highlight color,opacity,linewidth
		2255	@ NOT IMPLEMENTED
		2256	@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
		2257	*/
		2258	break;
		2259	case FILLCOLOR:
		2260	/*
		2261	@ fillcolor colorname or #hex
		2262	@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		2263	@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		2264	*/
		2265	fill_color = get_color(infile,1);
		2266	break;
		2267	case STROKECOLOR:
		2268	/*
		2269	@ strokecolor colorname or #hex
		2270	@ to be used for commands that do not supply a color argument (like command 'linegraph')
		2271	*/
		2272	stroke_color = get_color(infile,1);
		2273	break;
8224	bpr	2274	case BGIMAGE:
7614	schaersvoo	2275	/*
		2276	@bgimage image_location
		2277	@use an image as background .<br />(we use the background of 'canvas_div' )
		2278	@the background image will be resized to match "width = xsize" and "height = ysize"
		2279	*/
		2280	URL = get_string(infile,1);
		2281	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);
		2282	break;
8224	bpr	2283	case BGCOLOR:
7614	schaersvoo	2284	/*
		2285	@bgcolor colorname or #hex
		2286	@use this color as background of the "div" containing the canvas(es)
		2287	*/
		2288	/* [255,255,255]*/
		2289	bgcolor = get_string(infile,1);
		2290	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		2291	int found = 0;
		2292	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		2293	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		2294	bgcolor = colors[i].hex;
		2295	found = 1;
		2296	break;
		2297	}
		2298	}
		2299	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		2300	}
		2301	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		2302	break;
		2303	case COPY:
		2304	/*
		2305	@ copy x,y,x1,y1,x2,y2,[filename URL]
		2306	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		2307	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
8224	bpr	2308	@ [filename] is the URL of the image
7614	schaersvoo	2309	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		2310	@ if command 'drag x/y/xy' 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 valuid for the next image<br />draggable / non-draggable images may be mixed
8224	bpr	2311	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
7614	schaersvoo	2312
		2313	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		2314	draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
		2315	*/
		2316	for(i = 0 ; i<7;i++){
		2317	switch(i){
		2318	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		2319	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		2320	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		2321	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		2322	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		2323	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		2324	case 6: URL = get_string(infile,1);
		2325	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		2326	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		2327	if( drag_type > -1 ){
		2328	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
7876	schaersvoo	2329	if(reply_format == 0 ){reply_format = 20;}
7614	schaersvoo	2330	string_length = snprintf(NULL,0,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%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,1);
		2331	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8224	bpr	2332	snprintf(tmp_buffer,string_length,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%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,1);
7614	schaersvoo	2333	drag_type = -1;
		2334	ext_img_cnt++;
		2335	}
		2336	else
		2337	{
		2338	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		2339	/*
		2340	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
		2341	*/
		2342	string_length = snprintf(NULL,0,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\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]);
		2343	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2344	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\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]);
		2345	}
		2346	add_to_buffer(tmp_buffer);
		2347	break;
		2348	default: break;
		2349	}
		2350	}
		2351	reset();
		2352	break;
		2353	/*
		2354	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		2355	img Specifies the image, canvas, or video element to use
		2356	sx The x coordinate where to start clipping : x1 = int_data[0]
		2357	sy The y coordinate where to start clipping : x2 = int_data[1]
8224	bpr	2358	swidth The width of the clipped image : int_data[2] - int_data[0]
7614	schaersvoo	2359	sheight The height of the clipped image : int_data[3] - int_data[1]
		2360	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		2361	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		2362	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		2363	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		2364	*/
		2365	case COPYRESIZED:
		2366	/*
		2367	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
8224	bpr	2368	@ 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
7614	schaersvoo	2369	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		2370	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		2371	@ if command 'drag x/y/xy' 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 valuid for the next image<br />draggable / non-draggable images may be mixed
8224	bpr	2372	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
7614	schaersvoo	2373	*/
		2374	for(i = 0 ; i<9;i++){
		2375	switch(i){
		2376	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		2377	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		2378	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		2379	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		2380	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		2381	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		2382	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		2383	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		2384	case 8: URL = get_string(infile,1);
		2385	if( drag_type > -1 ){
		2386	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
7876	schaersvoo	2387	if(reply_format == 0 ){reply_format = 20;}
7614	schaersvoo	2388	string_length = snprintf(NULL,0,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%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,1);
		2389	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2390	snprintf(tmp_buffer,string_length,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%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,1);
		2391	drag_type = -1;
		2392	ext_img_cnt++;
		2393	}
		2394	else
		2395	{
		2396	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		2397	string_length = snprintf(NULL,0,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\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]);
		2398	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2399	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,0);\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]);
		2400	}
		2401	add_to_buffer(tmp_buffer);
		2402	default: break;
		2403	}
		2404	}
		2405	reset();
		2406	break;
8146	schaersvoo	2407	case CLEARBUTTON:
7614	schaersvoo	2408	/*
8146	schaersvoo	2409	@clearbutton value
		2410	@adds a button to clear the userdraw canvas with text 'value'
8193	schaersvoo	2411	@normally userdraw 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
8146	schaersvoo	2412	@uses the tooltip placeholder div element: may not be used with command 'intooltip'
8224	bpr	2413	@use command 'inputstyle' to style the button...
7614	schaersvoo	2414	*/
8146	schaersvoo	2415	add_clear_button(js_include_file,canvas_root_id,input_style,get_string(infile,1));
7614	schaersvoo	2416	break;
		2417	case INPUTSTYLE:
		2418	/*
		2419	@ inputstyle style_description
		2420	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		2421	*/
		2422	input_style = get_string(infile,1);
		2423	break;
		2424	case INPUT:
8224	bpr	2425	/*
7614	schaersvoo	2426	@ input x,y,size,editable,value
8224	bpr	2427	@ to set inputfield "readonly", use editable = 0
7614	schaersvoo	2428	@ only active inputfields (editable = 1) will be read with read_canvas();
8224	bpr	2429	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
7614	schaersvoo	2430	@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
		2431	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		2432	*/
8224	bpr	2433	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
7614	schaersvoo	2434	for(i = 0 ; i<5;i++){
		2435	switch(i){
		2436	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		2437	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		2438	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		2439	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
8224	bpr	2440	case 4:
7614	schaersvoo	2441	temp = get_string_argument(infile,1);
		2442	string_length = snprintf(NULL,0, "draw_inputs(%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],input_style,temp);
		2443	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2444	snprintf(tmp_buffer,string_length,"draw_inputs(%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],input_style,temp);
		2445	add_to_buffer(tmp_buffer);
		2446	input_cnt++;break;
		2447	default: break;
		2448	}
		2449	}
7876	schaersvoo	2450	if(reply_format == 0 ){reply_format = 15;}
7614	schaersvoo	2451	reset();
		2452	break;
		2453	case TEXTAREA:
8224	bpr	2454	/*
7614	schaersvoo	2455	@ textarea x,y,cols,rows,readonly,value
		2456	@ may be further controlled by "inputstyle"
8224	bpr	2457	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
7614	schaersvoo	2458	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		2459	*/
8224	bpr	2460	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
7614	schaersvoo	2461	for(i = 0 ; i<6;i++){
		2462	switch(i){
		2463	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		2464	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		2465	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		2466	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		2467	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		2468	case 5: temp = get_string_argument(infile,1);
		2469	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);
		2470	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2471	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);
		2472	add_to_buffer(tmp_buffer);
		2473	input_cnt++;break;
		2474	default: break;
		2475	}
		2476	}
7876	schaersvoo	2477	if(reply_format == 0 ){reply_format = 15;}
7614	schaersvoo	2478	reset();
		2479	break;
		2480	case MOUSE_PRECISION:
		2481	/*
		2482	@ precision int
8074	schaersvoo	2483	@ 1 = no decimals ; 10 = 1 decimal ; 100 = 2 decimals etc
7614	schaersvoo	2484	@ may be used / changed before every object
8074	schaersvoo	2485	@ In case of user interaction (like 'userdraw') this value will be used to determine the amount of decimals in the reply / answer
7614	schaersvoo	2486	*/
		2487	precision = (int) (get_real(infile,1));
8074	schaersvoo	2488	if(precision < 1 ){precision = 1;};
7614	schaersvoo	2489	break;
7838	schaersvoo	2490	case SETLIMITS:
		2491	/*
8224	bpr	2492	@setlimits
7838	schaersvoo	2493	@keyword : if set, it will produce 4 inputfields for 'xmin,xmax,ymin,ymax' and an 'ok' button
		2494	@may be used for inputfield based zooming / panning
7858	schaersvoo	2495	@use command xlabel / ylabel to change text from xmin to 'xlabel'min etc
8224	bpr	2496	@note:the input value will not be checked on validity
7838	schaersvoo	2497	*/
7956	schaersvoo	2498	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7838	schaersvoo	2499	add_setlimits(js_include_file,canvas_root_id);
		2500	/* add_setlimits provides 'fprintf(js_include_file,"use_pan_and_zoom = 1;");' */
		2501	use_pan_and_zoom = TRUE;
		2502	done = TRUE;
		2503	break;
7614	schaersvoo	2504	case ZOOM:
		2505	/*
		2506	@ zoom button_color
		2507	@ introduce a controlpanel at the lower right corner
		2508	@ giving six 15x15pixel 'active' rectangle areas<br />(for x,leftarrow,rightarrow,uparrow,downarrow and a '-' and a '+' sign ) for zooming and/or panning of the image
		2509	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		2510	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
8224	bpr	2511	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		2512	@ NOTE: use command 'zoom' at the end of your script code (the same is true for commanmd 'mouse')
7614	schaersvoo	2513	@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
		2514	@ 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 !!
		2515	*/
7653	schaersvoo	2516	fprintf(js_include_file,"use_pan_and_zoom = 1;");
7797	schaersvoo	2517	use_pan_and_zoom = TRUE;
7988	schaersvoo	2518	stroke_color = get_color(infile,1);
7614	schaersvoo	2519	/* we use BG_CANVAS (0) */
7988	schaersvoo	2520	add_zoom_buttons(js_include_file,canvas_root_id,stroke_color,stroke_opacity);
7614	schaersvoo	2521	done = TRUE;
		2522	break;
		2523	case ONCLICK:
		2524	/*
		2525	@ onclick
		2526	@ keyword, no arguments
		2527	@ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
8224	bpr	2528	@ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
7906	schaersvoo	2529	@ NOTE: not all objects may be set clickable
7614	schaersvoo	2530	*/
8257	schaersvoo	2531	fprintf(js_include_file,"use_dragdrop_reply = true;");
7614	schaersvoo	2532	onclick = 1;
		2533	break;
		2534	case DRAG:
		2535	/*
		2536	@ drag [x][y][xy]
		2537	@ the next object will be draggable in x / y / xy direction
		2538	@ the displacement can be read by 'javascript:read_dragdrop();'
8074	schaersvoo	2539	@ the precision (default 2 decimals) in the student reply may be set with command 'precision'.<br />Use this 'precision' command before this command 'drag x\|y\|xy' !
7906	schaersvoo	2540	@ the answer is : object_number : Xorg : Yorg : Xnew : Ynew<br />wherein object_number is the place of the draggable object in your script.<br />Only draggable object will have an object_number (e.g things like point,crosshair,line,segment,circle,rect,triangle...etc)
7881	schaersvoo	2541	@ use keywordd 'snaptogrid' , 'xsnaptogrid' or 'ysnaptogrid' to switch from free to discrete movement
8224	bpr	2542	@ 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.
7614	schaersvoo	2543	@ 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 !!
		2544	*/
		2545	temp = get_string(infile,1);
8224	bpr	2546	if(strstr(temp,"xy") != NULL ){
7614	schaersvoo	2547	drag_type = 0;
		2548	}
		2549	else
		2550	{
8224	bpr	2551	if(strstr(temp,"x") != NULL ){
7614	schaersvoo	2552	drag_type = 1;
		2553	}
		2554	else
		2555	{
		2556	drag_type = 2;
		2557	}
		2558	}
8257	schaersvoo	2559	fprintf(js_include_file,"dragdrop_precision = %d;use_dragdrop_reply = true;",precision);
7614	schaersvoo	2560	onclick = 2;
8257	schaersvoo	2561
7614	schaersvoo	2562	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
		2563	break;
		2564	case BLINK:
		2565	/*
		2566	@ blink time(seconds)
		2567	@ NOT IMPLEMETED -YET
		2568	*/
		2569	break;
7996	schaersvoo	2570	case XUNIT:
		2571	/*
		2572	@ xunit some_unit_for_x-values
		2573	@ unicode allowed (no html code)
		2574	@ use together with command mousex
		2575	@ will display the cursor x-coordinate 'unit'
		2576	*/
		2577	fprintf(js_include_file,"unit_x = \"%s\";",get_string(infile,1));
		2578	break;
		2579	case YUNIT:
		2580	/*
		2581	@ yunit some_unit_for_y-values
		2582	@ unicode allowed (no html code)
		2583	@ use together with command mousex
		2584	@ will display the cursor y-coordinate 'unit'
		2585	*/
		2586	fprintf(js_include_file,"unit_y = \"%s\";",get_string(infile,1));
		2587	break;
8071	schaersvoo	2588	case MOUSE_DISPLAY:
		2589	/*
8129	schaersvoo	2590	@display x\|y\|xy\|degree\|radius,color,fontsize
		2591	@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 ( rhe angle between x-axis;(0:0);(x:y)
		2592	@use commands 'xunit' and / or 'yunit' to add the units to the mouse values
8071	schaersvoo	2593	@just like commands 'mouse','mousex','mousey','mouse_degree'...only other name)
		2594	*/
		2595	temp = get_string_argument(infile,0);
8112	schaersvoo	2596	if( strstr(temp,"xy") != NULL ){
		2597	int_data[0] = 2;
8071	schaersvoo	2598	}else{
8112	schaersvoo	2599	if( strstr(temp,"y") != NULL ){
		2600	int_data[0] = 1;
8071	schaersvoo	2601	}else{
8112	schaersvoo	2602	if( strstr(temp,"x") != NULL ){
		2603	int_data[0] = 0;
8129	schaersvoo	2604	}else{
8112	schaersvoo	2605	if(strstr(temp,"degree") != NULL){
		2606	int_data[0] = 3;
8071	schaersvoo	2607	}else{
8129	schaersvoo	2608	if(strstr(temp,"radius") != NULL){
		2609	int_data[0] = 4;
		2610	}else{
		2611	int_data[0] = 2;
		2612	}
8112	schaersvoo	2613	}
8129	schaersvoo	2614	}
8071	schaersvoo	2615	}
8129	schaersvoo	2616	}
8071	schaersvoo	2617	stroke_color = get_color(infile,0);
		2618	font_size = (int) (get_real(infile,1));
		2619	tmp_buffer = my_newmem(26);
		2620	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2621	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,int_data[0]);
		2622	break;
		2623	case MOUSE_DEGREE:
		2624	/*
		2625	@ mouse_degree color,fontsize
8099	schaersvoo	2626	@ will display the angle in degrees between x-axis, (0:0) and the cursor (x:y) in 'color' and 'font size'<br /> using default fontfamily Ariel
8071	schaersvoo	2627	@ The angle is positive in QI and QIII and the angle value is negative in QII and QIV
8224	bpr	2628	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
8071	schaersvoo	2629
		2630	*/
		2631	stroke_color = get_color(infile,0);
		2632	font_size = (int) (get_real(infile,1));
		2633	tmp_buffer = my_newmem(26);
		2634	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2635	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,3);
		2636	break;
7991	schaersvoo	2637	case MOUSEX:
		2638	/*
		2639	@ mousex color,fontsize
		2640	@ will display the cursor x-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2641	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
7991	schaersvoo	2642
		2643	*/
		2644	stroke_color = get_color(infile,0);
		2645	font_size = (int) (get_real(infile,1));
		2646	tmp_buffer = my_newmem(26);
		2647	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2648	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,0);
		2649	break;
		2650	case MOUSEY:
		2651	/*
		2652	@ mousey color,fontsize
		2653	@ will display the cursor y-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2654	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
7991	schaersvoo	2655
		2656	*/
		2657	stroke_color = get_color(infile,0);
		2658	font_size = (int) (get_real(infile,1));
		2659	tmp_buffer = my_newmem(26);
		2660	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2661	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,1);
		2662	break;
7614	schaersvoo	2663	case MOUSE:
		2664	/*
		2665	@ mouse color,fontsize
7991	schaersvoo	2666	@ will display the cursor (x:y) coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2667	@ NOTE: use command 'mouse' at the end of your script code (the same is true for commanmd 'zoom')
7988	schaersvoo	2668
7614	schaersvoo	2669	*/
		2670	stroke_color = get_color(infile,0);
		2671	font_size = (int) (get_real(infile,1));
7839	schaersvoo	2672	tmp_buffer = my_newmem(26);
		2673	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
7991	schaersvoo	2674	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,2);
7614	schaersvoo	2675	break;
		2676	case INTOOLTIP:
		2677	/*
		2678	@ intooltip link_text
		2679	@ link_text is a single line (span-element)
		2680	@ link_text may also be an image URL http://some_server/images/my_image.png
		2681	@ link_text may contain HTML markup
		2682	@ the canvas will be displayed in a tooltip on 'link_text'
		2683	@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
		2684	*/
7823	schaersvoo	2685	if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy command");}
7614	schaersvoo	2686	use_tooltip = TRUE;
		2687	tooltip_text = get_string(infile,1);
		2688	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		2689	break;
		2690	case AUDIO:
		2691	/*
		2692	@ audio x,y,w,h,loop,visible,audiofile location
		2693	@ x,y : left top corner of audio element (in xrange / yrange)
		2694	@ w,y : width and height in pixels
		2695	@ loop : 0 or 1 ( 1 = loop audio fragment)
		2696	@ visible : 0 or 1 (1 = show controls)
		2697	@ audio format may be in .mp3 or .ogg
		2698	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		2699	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		2700	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		2701	@ 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 />
		2702	*/
		2703	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		2704	for(i=0;i<7;i++){
		2705	switch(i){
		2706	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2707	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2708	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2709	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2710	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		2711	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
8224	bpr	2712	case 6:
7614	schaersvoo	2713	temp = get_string(infile,1);
		2714	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		2715	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		2716	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);
		2717	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2718	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);
		2719	add_to_buffer(tmp_buffer);
		2720	break;
		2721	default:break;
		2722	}
		2723	}
		2724	reset();
		2725	break;
		2726	case VIDEO:
		2727	/*
		2728	@ video x,y,w,h,videofile location
		2729	@ x,y : left top corner of audio element (in xrange / yrange)
		2730	@ w,y : width and height in pixels
		2731	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		2732	@ video format may be in *.mp4 (todo:other formats)
		2733	*/
		2734	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
		2735	for(i=0;i<5;i++){
		2736	switch(i){
		2737	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2738	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2739	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2740	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2741	case 4: temp = get_string(infile,1);
		2742	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);
		2743	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2744	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);
		2745	add_to_buffer(tmp_buffer);
		2746	break;
		2747	default:break;
		2748	}
		2749	}
		2750	reset();
		2751	break;
		2752	case HATCHFILL:
		2753	/*
		2754	@ hatchfill x0,y0,dx,dy,color
		2755	@ x0,y0 in xrange / yrange
		2756	@ distances dx,dy in pixels
		2757	*/
		2758	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		2759	for(i=0;i<5;i++){
		2760	switch(i){
		2761	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2762	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2763	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2764	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2765	case 4: stroke_color = get_color(infile,1);
		2766	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2767	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);
		2768	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2769	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);
		2770	add_to_buffer(tmp_buffer);
		2771	break;
		2772	default:break;
		2773	}
		2774	}
		2775	reset();
		2776	break;
7647	schaersvoo	2777	case DIAMONDFILL:
		2778	/*
		2779	@ diamondfill x0,y0,dx,dy,color
		2780	@ x0,y0 in xrange / yrange
		2781	@ distances dx,dy in pixels
		2782	*/
		2783	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
		2784	for(i=0;i<5;i++){
		2785	switch(i){
		2786	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2787	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2788	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2789	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2790	case 4: stroke_color = get_color(infile,1);
		2791	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2792	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);
		2793	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2794	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);
		2795	add_to_buffer(tmp_buffer);
		2796	break;
		2797	default:break;
		2798	}
		2799	}
		2800	reset();
		2801	break;
7614	schaersvoo	2802	case GRIDFILL:
		2803	/*
		2804	@ gridfill x0,y0,dx,dy,color
		2805	@ x0,y0 in xrange / yrange
		2806	@ distances dx,dy in pixels
7883	schaersvoo	2807	@ a draggable object may snap_to_grid (using keywords xysnaptogrid,xsnaprogrid, ysnaptogrid)
		2808	@ userdraw object may snap_to_grid
7614	schaersvoo	2809	*/
		2810	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		2811	for(i=0;i<5;i++){
		2812	switch(i){
		2813	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2814	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2815	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2816	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2817	case 4: stroke_color = get_color(infile,1);
		2818	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);
		2819	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2820	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);
		2821	add_to_buffer(tmp_buffer);
		2822	break;
		2823	default:break;
		2824	}
		2825	}
		2826	reset();
		2827	break;
		2828	case DOTFILL:
		2829	/*
		2830	@ dotfill x0,y0,dx,dy,color
		2831	@ x0,y0 in xrange / yrange
		2832	@ distances dx,dy in pixels
		2833	@ radius of dots is linewidth
		2834	*/
		2835	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
		2836	for(i=0;i<5;i++){
		2837	switch(i){
		2838	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2839	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2840	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2841	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2842	case 4: stroke_color = get_color(infile,1);
		2843	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
		2844	string_length = snprintf(NULL,0, "draw_dotfill(%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);
		2845	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2846	snprintf(tmp_buffer,string_length,"draw_dotfill(%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);
		2847	add_to_buffer(tmp_buffer);
		2848	break;
		2849	default:break;
		2850	}
		2851	}
		2852	reset();
		2853	break;
		2854	case IMAGEFILL:
		2855	/*
		2856	@ imagefill dx,dy,image_url
		2857	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2858	@ After pattern filling ,the fill-color should be reset !
		2859	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2860	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		2861	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		2862	@ if dx,dy is larger than the image, the whole image will be background to the next object.
		2863	*/
		2864	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		2865	for(i=0 ;i < 3 ; i++){
		2866	switch(i){
		2867	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2868	case 1:int_data[1] = (int) (get_real(infile,0));break;
		2869	case 2: URL = get_string_argument(infile,1);
		2870	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);
		2871	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2872	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);
		2873	add_to_buffer(tmp_buffer);
		2874	break;
		2875	}
		2876	}
8083	schaersvoo	2877	reset();
7614	schaersvoo	2878	break;
		2879	case FILLTOBORDER:
		2880	/*
		2881	@ filltoborder x,y,bordercolor,color
8224	bpr	2882	@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
7614	schaersvoo	2883	@ any other color will not act as border to the bucket fill
		2884	@ use this command after all boundary objects are declared.
		2885	@ 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..
		2886	*/
		2887	for(i=0 ;i < 4 ; i++){
		2888	switch(i){
		2889	case 0:double_data[0] = get_real(infile,0);break;
		2890	case 1:double_data[1] = get_real(infile,0);break;
		2891	case 2:bgcolor = get_color(infile,0);break;
		2892	case 3:fill_color = get_color(infile,1);
		2893	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2894	js_function[DRAW_FILLTOBORDER] = 1;
		2895	add_js_filltoborder(js_include_file,canvas_root_id);
		2896	}
		2897	decimals = find_number_of_digits(precision);
7895	schaersvoo	2898	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
8071	schaersvoo	2899	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2900	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	2901	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2902	add_to_buffer(tmp_buffer);
		2903	break;
		2904	default:break;
8083	schaersvoo	2905	}
		2906	}
		2907	reset();
7614	schaersvoo	2908	break;
		2909	case FLOODFILL:
		2910	/*
		2911	@ floodfill x,y,color
		2912	@ alternative syntax: fill x,y,color
		2913	@ fill the region of point (x:y) with color 'color'
		2914	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		2915	@ use this command after all boundary objects are declared.
		2916	@ Use command 'clickfill,color' for user click driven flood fill.
		2917	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2918	@ 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..
		2919	*/
		2920	for(i=0 ;i < 4 ; i++){
		2921	switch(i){
		2922	case 0:double_data[0] = get_real(infile,0);break;
		2923	case 1:double_data[1] = get_real(infile,0);break;
		2924	case 2:fill_color = get_color(infile,1);
		2925	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2926	js_function[DRAW_FLOODFILL] = 1;
		2927	add_js_floodfill(js_include_file,canvas_root_id);
		2928	}
		2929	decimals = find_number_of_digits(precision);/floodfill(interaction,x,y,[R,G,B,A]) /
7895	schaersvoo	2930	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
		2931	string_length = snprintf(NULL,0, "setTimeout(function(){floodfill(0,%.f,%.f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2932	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7895	schaersvoo	2933	snprintf(tmp_buffer,string_length,"setTimeout(function(){floodfill(0,%.f,%.f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2934	add_to_buffer(tmp_buffer);
		2935	break;
		2936	default:break;
8083	schaersvoo	2937	}
		2938	}
		2939	reset();
7614	schaersvoo	2940	break;
		2941	case CLICKFILLMARGE:
		2942	clickfillmarge = (int) (get_real(infile,1));
		2943	break;
		2944	/*
		2945	@ clickfillmarge int
		2946	@ default 20 (pixels)
		2947	@ when using command "clickfill fillcolor" a coloured area my be reverted ("undo") <br />back to background colour with a middle mouse click<br />when the click is in a 40x40 rectangle around a stored m mouseclick (userdraw_x[] and userdraw_y[])
		2948	*/
		2949	case CLICKFILL:
		2950	/*
		2951	@ clickfill fillcolor
		2952	@ user left mouse click will floodfill the area with fillcolor
		2953	@ multiple areas may be coloured
		2954	@ the coloured areas can be removed (changed to "bgcolor") by middle / right mouse click <br />(if the click is in an 40x40 pixel area of the click coordinate that "painted" the area)
		2955	@ the answer will be read as the (x:y) click coordinates per coloured area
		2956	@ background color of main div may be set by using command "bgcolor color"
		2957	@ may not be combined with command "userdraw"
		2958	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2959	*/
		2960	fill_color = get_color(infile,1);
		2961	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2962	js_function[DRAW_FLOODFILL] = 1;
		2963	add_js_floodfill(js_include_file,canvas_root_id);
		2964	}
8130	schaersvoo	2965	fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;userdraw_x = new Array();userdraw_y = new Array();var user_clickfill_cnt = 0;\ncanvas_div.addEventListener(\"mousedown\",clickfill,false);function clickfill(evt){var x = evt.clientX - findPosX(canvas_div) + document.body.scrollLeft + document.documentElement.scrollLeft;var y = evt.clientY - findPosY(canvas_div) + document.body.scrollTop + document.documentElement.scrollTop;if(evt.which != 1){for(var p=0; p < user_clickfill_cnt;p++){if(userdraw_x[p] + marge_xy > x && userdraw_x[p] - marge_xy < x){if(userdraw_y[p] + marge_xy > y && userdraw_y[p] - marge_xy < y){if(confirm(\"Clear ?\")){floodfill(1,userdraw_x[p],userdraw_y[p],canvas_div.style.backgroundColor \|\| [255,255,255,0]);userdraw_x.splice(p,2);userdraw_y.splice(p,2);user_clickfill_cnt--;return;};};};};};userdraw_x[user_clickfill_cnt] = x;userdraw_y[user_clickfill_cnt] = y;user_clickfill_cnt++;floodfill(1,x,y,[%s,%d]);};",clickfillmarge,fill_color,(int) (fill_opacity/0.0039215));
8257	schaersvoo	2966	add_read_canvas(canvas_root_id,1,reply_precision);
8083	schaersvoo	2967	reset();
7614	schaersvoo	2968	break;
		2969	case SETPIXEL:
		2970	/*
		2971	@ setpixel x,y,color
		2972	@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
		2973	@ pixels can not be dragged or clicked
		2974	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2975	*/
		2976	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2977	for(i=0;i<3;i++){
		2978	switch(i){
		2979	case 0: double_data[0] = get_real(infile,0); break; /* x */
		2980	case 1: double_data[1] = get_real(infile,0); break; /* y */
		2981	case 2: stroke_color = get_color(infile,1);
		2982	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2983	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2984	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2985	add_to_buffer(tmp_buffer);
		2986	break;
		2987	default:break;
		2988	}
		2989	}
		2990	reset();
		2991	break;
		2992	case PIXELSIZE:
		2993	/*
		2994	@ pixelsize int
		2995	@ in case you want to deviate from default pixelsize = 1...
		2996	*/
		2997	pixelsize = (int) get_real(infile,1);
		2998	break;
		2999	case PIXELS:
		3000	/*
		3001	@ pixels color,x1,y1,x2,y2,x3,y3...
		3002	@ Draw "points" with diameter 1 pixel
		3003	@ pixels can not be dragged or clicked
		3004	@ "pixelsize = 1" may be changed by command "pixelsize int"
		3005	*/
		3006	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		3007	stroke_color=get_color(infile,0);
		3008	i=0;
		3009	c=0;
		3010	while( ! done ){ /* get next item until EOL*/
		3011	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		3012	for( c = 0 ; c < 2; c++){
		3013	if(c == 0 ){
		3014	double_data[i] = get_real(infile,0);
		3015	i++;
		3016	}
		3017	else
		3018	{
		3019	double_data[i] = get_real(infile,1);
		3020	i++;
		3021	}
		3022	}
		3023	}
		3024	decimals = find_number_of_digits(precision);
		3025	/* double_xy2js_array(double xy[],int len,int decimals) /
		3026	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3027	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3028	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3029	add_to_buffer(tmp_buffer);
8083	schaersvoo	3030	reset();
7614	schaersvoo	3031	break;
		3032	case REPLYFORMAT:
		3033	/*
		3034	@ replyformat number
8257	schaersvoo	3035	@ use number=-1 to deactivate the js-functions read_canvas() and read_dragdrop()
7614	schaersvoo	3036	@ default values should be fine !
8074	schaersvoo	3037	@ use command 'precision [0,1,10,100,1000,10000...]' before command 'replyformat' to set the desired number of decimals in the student reply / drawing
7963	schaersvoo	3038	@ the last value for 'precision int' will be used to calculate the reply coordinates, if needed (read_canvas();)
8127	schaersvoo	3039	@ 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,x2:y2:text2...x_n:y_n:text_n</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>21 = (x1:y1) (x2:y2) ... (x_n:y_n)<br />verbatim coordinate return</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>replyformat 23 : can only be used for drawtype 'polyline'<br />a typical click sequence in drawtype polyline isx1,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>replyformat 24 = read all inputfield values: even those set 'readonly'</li><li>format 25 = angle1,angle2...angle_n : will return the radius (one or many) of the user drawn circle segment in degrees </li><li>format 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 array: x1:y1:text1,x2:y2:text2...</li></ul>
7614	schaersvoo	3040	@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
		3041	*/
		3042	reply_format = (int) get_real(infile,1);
8074	schaersvoo	3043	reply_precision = precision;
7614	schaersvoo	3044	break;
		3045	case LEGENDCOLORS:
		3046	/*
		3047	@ legendcolors color1:color2:color3:...:color_n
7956	schaersvoo	3048	@ 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<br />
7614	schaersvoo	3049	@ make sure the number of colours match the number of legend items
8224	bpr	3050	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
7614	schaersvoo	3051	*/
7956	schaersvoo	3052	if(legend_cnt == -1){canvas_error("use command \"legend\" before command \"legendcolors\" ! ");}
7614	schaersvoo	3053	temp = get_string(infile,1);
		3054	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7956	schaersvoo	3055	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",legend_cnt,temp);
7614	schaersvoo	3056	break;
		3057	case LEGEND:
		3058	/*
		3059	@ legend string1:string2:string3....string_n
		3060	@ will be used to create a legend for a graph
8224	bpr	3061	@ also see command 'piechart'
7956	schaersvoo	3062	@ will use the same colors per default as used in the graphs : use command 'legendcolors' to override the default
7614	schaersvoo	3063	*/
		3064	temp = get_string(infile,1);
		3065	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7956	schaersvoo	3066	legend_cnt++; /* attention :starts with -1 : it will be used in piechart etc */
		3067	fprintf(js_include_file,"var legend%d = [\"%s\"];",legend_cnt,temp);
7614	schaersvoo	3068	break;
		3069	case XLABEL:
		3070	/*
		3071	@ xlabel some_string
		3072	@ will be used to create a label for the x-axis (label is in quadrant I)
		3073	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
8224	bpr	3074	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
7614	schaersvoo	3075	*/
		3076	temp = get_string(infile,1);
7653	schaersvoo	3077	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7614	schaersvoo	3078	break;
		3079	case YLABEL:
		3080	/*
		3081	@ ylabel some_string
8224	bpr	3082	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
7614	schaersvoo	3083	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
8224	bpr	3084	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
7614	schaersvoo	3085	*/
		3086	temp = get_string(infile,1);
7653	schaersvoo	3087	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	3088	break;
		3089	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		3090	/*
7996	schaersvoo	3091	@ linegraph x1:y1;x2:y2...x_n:y_n
7614	schaersvoo	3092	@ will plot your data in a graph
		3093	@ may only to be used together with command 'grid'
		3094	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		3095	@ use command 'legend' to provide an optional legend in right-top-corner
		3096	@ also see command 'piechart'
		3097	@ multiple linegraphs may be used in a single plot
7989	schaersvoo	3098	@ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
7614	schaersvoo	3099	@ <ul><li>use command 'strokecolor' before command 'linegraph' to set the color of this graph</li><li>use command 'linewidth' before command 'linegraph' to set linewidth of this graph</li><li>use command 'dashed' before command 'linegraph' to set dashing of the graph</li><li>if dashing is set, use command 'dashtype' before command 'linegraph' to set the type of dashing of the graph</li></ul>
8224	bpr	3100	*/
7614	schaersvoo	3101	temp = get_string(infile,1);
		3102	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	3103	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);
7614	schaersvoo	3104	linegraph_cnt++;
		3105	reset();
		3106	break;
7989	schaersvoo	3107	case BARCHART:
		3108	/*
		3109	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		3110	@ will be used to create a legend for bar graph
		3111	@ may only to be used together with command 'grid'
		3112	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		3113	@ use command 'legend' to provide an optional legend in right-top-corner
		3114	@ also see command 'piechart'
		3115	@ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
		3116	*/
		3117	temp = get_string(infile,1);
		3118	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
		3119	fprintf(js_include_file,"var barchart_%d = [\"%s\"];",barchart_cnt,temp);
		3120	barchart_cnt++;
		3121	reset();
		3122	break;
7614	schaersvoo	3123	case CLOCK:
		3124	/*
		3125	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
7997	schaersvoo	3126	@ use command 'opacity stroke-opacity,fill-opacity' to adjust foreground (stroke) and background (fill) transparency
7614	schaersvoo	3127	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		3128	@ colors are optional: if not defined, default values will be used<br />default colours: clock 0,0,60,4,35,45,1,2,[space]<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,white,white,black,yellow
7862	schaersvoo	3129	@ if you don't want a seconds hand (or minutes...), just make it invisible by using the background color of the hourglass...
7614	schaersvoo	3130	@ 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></ul>
		3131	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		3132	@ no combinations with other reply_types allowed, for now
7783	schaersvoo	3133	@ if interactive, 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
8262	schaersvoo	3134	@ NOTE: if you need multiple clocks on a webpage, use multiple 'clock' commands in a single script !<br />and <i>not multiple canvas scripts</i> in a single page
7614	schaersvoo	3135	*/
		3136	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		3137
		3138	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		3139	for(i=0;i<9;i++){
		3140	switch(i){
		3141	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		3142	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		3143	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		3144	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		3145	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		3146	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
7783	schaersvoo	3147	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 */
7614	schaersvoo	3148	case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
7783	schaersvoo	3149	switch(int_data[7]){
		3150	case 0:break;
		3151	case 1:if(clock_cnt == 0){
		3152	if( reply_format == 0 ){
7614	schaersvoo	3153	reply_format = 18; /* user sets clock */
7783	schaersvoo	3154	/* 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");
7614	schaersvoo	3155	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3156	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");
		3157	add_to_buffer(tmp_buffer);
7783	schaersvoo	3158	*/
8130	schaersvoo	3159	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");
7783	schaersvoo	3160	}
		3161	else
		3162	{
		3163	canvas_error("interactive clock may not be used together with other reply_types...");
		3164	}
		3165	}
8130	schaersvoo	3166	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);
7783	schaersvoo	3167	break;
		3168	case 2:if( reply_format == 0 ){
		3169	reply_format = 19; /* "onclick */
8130	schaersvoo	3170	fprintf(js_include_file,"\n<!-- begin onclick handler for clocks -->\nvar reply = new Array();\n\ncanvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();\nvar x = evt.clientX - canvas_rect.left;\nvar y = evt.clientY - canvas_rect.top;\nvar p = 0;\nvar name;\nvar t = true;\nwhile(t){try{name = eval('clocks'+p);\nif( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;\nname = 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);\n};\n}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);\nname = 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};\np++;\n}catch(e){t=false;\n};\n};\n};\n};\n\n<!-- end onclick handler for clocks -->\n ");
7783	schaersvoo	3171	}
		3172	else
		3173	{
		3174	if( reply_format != 19){
7614	schaersvoo	3175	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		3176	}
7783	schaersvoo	3177	}
		3178	break;
		3179	default: canvas_error("interactive must be set 0,1 or 2");break;
		3180	}
		3181	break;
8224	bpr	3182	case 8:
8130	schaersvoo	3183	if(clock_cnt == 0 ){ /* set opacity's just once .... it should be a argument to clock() , for now it's OK */
		3184	fprintf(js_include_file,"var clock_bg_opacity = %.2f;var clock_fg_opacity = %.2f;",fill_opacity,stroke_opacity);
		3185	}
7614	schaersvoo	3186	temp = get_string(infile,1);
		3187	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		3188	if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
8130	schaersvoo	3189	string_length = snprintf(NULL,0,"var 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);
7614	schaersvoo	3190	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8130	schaersvoo	3191	snprintf(tmp_buffer,string_length,"var 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);
7614	schaersvoo	3192	add_to_buffer(tmp_buffer);
		3193	clock_cnt++;
		3194	break;
		3195	default:break;
		3196	}
		3197	}
		3198	break;
		3199	case PIECHART:
		3200	/*
		3201	@ piechart xc,yc,radius,'data+colorlist'
		3202	@ (xc : yc) center of circle diagram in xrange/yrange
		3203	@ radius in pixels
		3204	@ 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
		3205	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		3206	@ the number of colors must match the number of data.
		3207	@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
8224	bpr	3208	@ use command "legend string1:string2:...:string_n" 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	3209	*/
8224	bpr	3210	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
7614	schaersvoo	3211	for(i=0;i<5;i++){
		3212	switch(i){
		3213	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		3214	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		3215	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		3216	case 3: temp = get_string(infile,1);
		3217	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
7956	schaersvoo	3218	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);
7614	schaersvoo	3219	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7956	schaersvoo	3220	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);
7614	schaersvoo	3221	add_to_buffer(tmp_buffer);
		3222	break;
		3223	default:break;
		3224	}
		3225	}
		3226	reset();
		3227	break;
		3228	case STATUS:
7877	schaersvoo	3229	/*
		3230	@status
		3231	@keyword
		3232	@alernative keyword: nostatus
		3233	@used to override the effects of "status=done" in wims (answer.phtml)
		3234	@affects inputfields / textarea's in canvasimage and all userdraw based commands
		3235	@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'
		3236	*/
8224	bpr	3237
7877	schaersvoo	3238	fprintf(js_include_file,"\nwims_status=\"waiting\";\n");
7614	schaersvoo	3239	break;
7735	schaersvoo	3240	case XLOGBASE:
7729	schaersvoo	3241	/*
7735	schaersvoo	3242	@ xlogbase number
		3243	@ sets the logbase number for the x-axis
7729	schaersvoo	3244	@ default value 10
7735	schaersvoo	3245	@ use together with commands xlogscale / xylogscale
7729	schaersvoo	3246	*/
7735	schaersvoo	3247	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7729	schaersvoo	3248	break;
7735	schaersvoo	3249	case YLOGBASE:
		3250	/*
		3251	@ ylogbase number
		3252	@ sets the logbase number for the y-axis
		3253	@ default value 10
		3254	@ use together with commands ylogscale / xylogscale
		3255	*/
		3256	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		3257	break;
7614	schaersvoo	3258	case XLOGSCALE:
		3259	/*
7735	schaersvoo	3260	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		3261	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3262	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		3263	@ the linewidth is set using command 'linewidth int'
		3264	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		3265	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
8224	bpr	3266	@ 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>
7735	schaersvoo	3267	@ note: the complete canvas will be used for the 'log paper'
		3268	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3269	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3270	@ note: when using something like 'xrange 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')
7735	schaersvoo	3271	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3272	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	3273	*/
7735	schaersvoo	3274	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3275	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		3276	for(i=0;i<4;i++){
		3277	switch(i){
		3278	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		3279	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		3280	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	3281	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	3282	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);
7735	schaersvoo	3283	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3284	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	3285	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		3286	add_to_buffer(tmp_buffer);
		3287	break;
		3288	default:break;
		3289	}
		3290	}
7614	schaersvoo	3291	break;
		3292	case YLOGSCALE:
7729	schaersvoo	3293	/*
		3294	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		3295	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3296	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		3297	@ the linewidth is set using command 'linewidth int'
		3298	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	3299	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
8224	bpr	3300	@ 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>
7729	schaersvoo	3301	@ note: the complete canvas will be used for the 'log paper'
		3302	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3303	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3304	@ 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')
7735	schaersvoo	3305	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3306	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	3307	*/
		3308	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3309	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		3310	for(i=0;i<4;i++){
		3311	switch(i){
		3312	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		3313	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		3314	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	3315	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	3316	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	3317	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3318	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	3319	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	3320	add_to_buffer(tmp_buffer);
		3321	break;
		3322	default:break;
		3323	}
		3324	}
7614	schaersvoo	3325	break;
		3326	case XYLOGSCALE:
7735	schaersvoo	3327	/*
		3328	@ xylogscale majorcolor,minorcolor
		3329	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3330	@ the linewidth is set using command 'linewidth int'
		3331	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		3332	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
8224	bpr	3333	@ 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>
7735	schaersvoo	3334	@ note: the complete canvas will be used for the 'log paper'
		3335	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3336	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3337	@ 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')
7735	schaersvoo	3338	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3339	@ attention: keyword 'snaptogrid' may not lead to the desired result...
		3340	*/
		3341	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3342	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		3343	for(i=0;i<2;i++){
		3344	switch(i){
		3345	case 0: stroke_color = get_color(infile,0); break;
8224	bpr	3346	case 1: fill_color = get_color(infile,1);
7779	schaersvoo	3347	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);
7735	schaersvoo	3348	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3349	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);
7735	schaersvoo	3350	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		3351	add_to_buffer(tmp_buffer);
		3352	break;
		3353	default:break;
		3354	}
		3355	}
		3356	break;
7614	schaersvoo	3357	default:sync_input(infile);
		3358	break;
		3359	}
8224	bpr	3360	}
7614	schaersvoo	3361	/* we are done parsing script file */
7983	schaersvoo	3362	/* check if xrange / yrange was set explicit ... or use xmin=0 xmax=xsize ymin=0 ymax=ysize : Quadrant I */
		3363	if( found_size_command == 1 ){
		3364	fprintf(js_include_file,"var xmin = 0;var xmax = %d;var ymin = 0;var ymax = %d",xsize,ysize);
		3365	}
		3366	else
		3367	{
		3368	if( found_size_command != 3 ){
8222	schaersvoo	3369	canvas_error("Please specify both xrange and yrange ...");
7983	schaersvoo	3370	}
		3371	}
8257	schaersvoo	3372
8222	schaersvoo	3373	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable/clickable shapes / objects ! */
7614	schaersvoo	3374	add_javascript_functions(js_function,canvas_root_id);
		3375	/* add read_canvas() etc functions if needed */
8257	schaersvoo	3376	if( reply_format > 0 ){ add_read_canvas(canvas_root_id,reply_format,reply_precision);}
7797	schaersvoo	3377	if( use_pan_and_zoom == TRUE ){
		3378	/* in case of zooming ... */
7729	schaersvoo	3379	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
7797	schaersvoo	3380	precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
7729	schaersvoo	3381	var ymin_start=ymin;var ymax_start=xmax;\
		3382	var zoom_x_increment=0;var zoom_y_increment=0;\
		3383	var pan_x_increment=0;var pan_y_increment=0;\
		3384	if(use_ylogscale == 0 ){\
7956	schaersvoo	3385	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	3386	}else{\
		3387	zoom_x_increment = (xmax - xmin)/20;\
		3388	pan_x_increment = (xmax - xmin)/20;\
		3389	};\
7653	schaersvoo	3390	function start_canvas%d(type){\
		3391	switch(type){\
7729	schaersvoo	3392	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		3393	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	3394	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		3395	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		3396	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		3397	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
		3398	case 6:location.reload();break;\
		3399	default:break;\
		3400	};\
		3401	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		3402	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
		3403	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
		3404	%s\
		3405	};\
7797	schaersvoo	3406	start_canvas%d(333);\
7614	schaersvoo	3407	};\n\
		3408	<!-- end wims_canvas_function -->\n\
7797	schaersvoo	3409	wims_canvas_function%d();\n",precision,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
		3410	}
		3411	else
		3412	{
		3413	/* no zoom, just add buffer */
		3414	fprintf(js_include_file,"\n<!-- add buffer -->\n\
		3415	%s\
		3416	};\n\
		3417	<!-- end wims_canvas_function -->\n\
		3418	wims_canvas_function%d();\n",buffer,canvas_root_id);
		3419	}
7614	schaersvoo	3420	/* done writing the javascript include file */
		3421	fclose(js_include_file);
		3422
		3423	}
		3424
		3425	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
		3426	if(use_tooltip == TRUE){
		3427	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		3428	}
		3429	exit(EXIT_SUCCESS);
		3430	}
		3431	/* end main() */
		3432
		3433	/******************************************************************************
		3434	**
		3435	** sync_input
		3436	**
		3437	** synchronises input line - reads to end of line, leaving file pointer
		3438	** at first character of next line.
		3439	**
		3440	** Used by:
		3441	** main program - error handling.
		3442	**
		3443	******************************************************************************/
		3444	void sync_input(FILE *infile)
		3445	{
		3446	int c = 0;
		3447
7658	schaersvoo	3448	if( c == '\n' \|\| c == ';' ) return;
		3449	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	3450	if( c == EOF ) finished = 1;
7658	schaersvoo	3451	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	3452	return;
		3453	}
		3454
		3455	/******************************************************************************/
		3456
		3457	char str_replace(const char str, const char old, const char new){
		3458	/* http://creativeandcritical.net/str-replace-c/ */
		3459	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		3460	char ret, r;
		3461	const char p, q;
		3462	size_t oldlen = strlen(old);
		3463	size_t count = 0;
		3464	size_t retlen = 0;
		3465	size_t newlen = strlen(new);
		3466	if (oldlen != newlen){
		3467	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		3468	count++;
		3469	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		3470	}
8224	bpr	3471	}
7614	schaersvoo	3472	else
		3473	{
		3474	retlen = strlen(str);
		3475	}
8224	bpr	3476
7614	schaersvoo	3477	if ((ret = malloc(retlen + 1)) == NULL){
		3478	ret = NULL;
		3479	canvas_error("string argument is NULL");
		3480	}
		3481	else
		3482	{
		3483	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		3484	size_t l = q - p;
		3485	memcpy(r, p, l);
		3486	r += l;
		3487	memcpy(r, new, newlen);
		3488	r += newlen;
		3489	}
		3490	strcpy(r, p);
		3491	}
		3492	return ret;
		3493	}
		3494
		3495	/******************************************************************************/
7848	bpr	3496
7614	schaersvoo	3497	char get_color(FILE infile , int last){
		3498	int c,i = 0,is_hex = 0;
		3499	char temp[MAX_COLOR_STRING], *string;
7748	schaersvoo	3500	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
7614	schaersvoo	3501	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		3502	if( c == '#' ){
		3503	is_hex = 1;
		3504	}
		3505	if( c != ' '){
		3506	temp[i]=tolower(c);
		3507	i++;
		3508	}
		3509	}
8224	bpr	3510	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3511	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	3512	if( c == EOF ){finished = 1;}
		3513	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		3514	temp[i]='\0';
		3515	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		3516	if( is_hex == 1 ){
		3517	char red[3], green[3], blue[3];
		3518	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		3519	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		3520	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		3521	int r = (int) strtol(red, NULL, 16);
		3522	int g = (int) strtol(green, NULL, 16);
		3523	int b = (int) strtol(blue, NULL, 16);
		3524	string = (char *)my_newmem(12);
		3525	snprintf(string,11,"%d,%d,%d",r,g,b);
		3526	return string;
		3527	}
		3528	else
		3529	{
		3530	string = (char *)my_newmem(sizeof(temp));
		3531	snprintf(string,sizeof(temp),"%s",temp);
		3532	for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
		3533	if( strcmp( colors[i].name , string ) == 0 ){
		3534	return colors[i].rgb;
		3535	}
		3536	}
		3537	}
		3538	/* not found...return error */
		3539	free(string);string = NULL;
		3540	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
		3541	return NULL;
		3542	}
		3543
		3544	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		3545	int c,i=0;
		3546	char temp[MAX_BUFFER], *string;
7748	schaersvoo	3547	while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
7614	schaersvoo	3548	temp[i]=c;
		3549	i++;
		3550	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		3551	}
8224	bpr	3552	if( ( c == '\n' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3553	if( c == '\n') { done = TRUE; line_number++; }
7614	schaersvoo	3554	if( c == EOF ) {
		3555	finished = 1;
		3556	if( last != 1 ){ canvas_error("expected more arguments");}
		3557	}
		3558	temp[i]='\0';
		3559	if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
		3560	string=(char *)my_newmem(strlen(temp));
		3561	snprintf(string,sizeof(temp),"%s",temp);
		3562	return string;
		3563	}
		3564
		3565	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		3566	int c,i=0;
		3567	char temp[MAX_BUFFER], *string;
7748	schaersvoo	3568	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
7614	schaersvoo	3569	temp[i]=c;
		3570	i++;
		3571	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		3572	}
8224	bpr	3573	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3574	if( c == '\n') { line_number++; }
7614	schaersvoo	3575	if( c == EOF ) {finished = 1;}
		3576	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		3577	temp[i]='\0';
		3578	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
		3579	string=(char *)my_newmem(sizeof(temp));
		3580	snprintf(string,sizeof(temp),"%s",temp);
		3581	done = TRUE;
		3582	return string;
		3583	}
		3584
		3585	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		3586	int c,i=0,found_calc = 0;
		3587	double y;
		3588	char tmp[MAX_INT];
7658	schaersvoo	3589	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	3590	if( c != ' ' ){
8224	bpr	3591	/*
		3592	libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
7614	schaersvoo	3593	We will check after assert() if it's a NULL pointer...and exit program via :
		3594	canvas_error("I'm having trouble parsing your \"expression\" ");
		3595	*/
8224	bpr	3596	if( i == 0 && c == '+' ){
7614	schaersvoo	3597	continue;
8224	bpr	3598	}
7614	schaersvoo	3599	else
		3600	{
		3601	if(canvas_iscalculation(c) != 0){
		3602	found_calc = 1;
		3603	c = tolower(c);
		3604	}
		3605	tmp[i] = c;
		3606	i++;
		3607	}
		3608	}
		3609	if( i > MAX_INT - 1){canvas_error("number too large");}
		3610	}
8224	bpr	3611	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7658	schaersvoo	3612	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	3613	if( c == EOF ){done = TRUE ; finished = 1;}
		3614	tmp[i]='\0';
		3615	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
		3616	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
7848	bpr	3617	void *f = eval_create(tmp);
7614	schaersvoo	3618	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
7848	bpr	3619	y = eval_x(f, 1);
7614	schaersvoo	3620	/* if function is bogus; y = 1 : so no core dumps */
7848	bpr	3621	eval_destroy(f);
7614	schaersvoo	3622	}
		3623	else
		3624	{
		3625	y = atof(tmp);
		3626	}
		3627	return y;
		3628	}
		3629	void canvas_error(char *msg){
7748	schaersvoo	3630	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
7614	schaersvoo	3631	finished = 1;
		3632	exit(EXIT_SUCCESS);
		3633	}
		3634
		3635
		3636	/* convert x/y coordinates to pixel */
		3637	int x2px(double x){
		3638	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		3639	}
		3640
		3641	int y2px(double y){
		3642	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		3643	}
		3644
		3645	double px2x(int x){
		3646	return (x*(xmax - xmin)/xsize + xmin);
		3647	}
		3648	double px2y(int y){
		3649	return (y*(ymax - ymin)/ysize + ymin);
		3650	}
		3651
		3652	void add_to_buffer(char *tmp){
		3653	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		3654	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		3655	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		3656	if( space_left > strlen(tmp)){
		3657	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		3658	}
		3659	else
		3660	{
		3661	canvas_error("buffer is too big\n");
		3662	}
		3663	tmp = NULL;free(tmp);
		3664	return;
		3665	}
		3666
		3667	void reset(){
		3668	if(use_filled == TRUE){use_filled = FALSE;}
		3669	if(use_dashed == TRUE){use_dashed = FALSE;}
		3670	if(use_rotate == TRUE){use_rotate = FALSE;}
8101	schaersvoo	3671	onclick = 0;
7614	schaersvoo	3672	}
		3673
		3674
		3675
		3676	/* What reply format in read_canvas();
		3677
		3678	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		3679	1 = x1,x2,x3,x4....x_n
		3680	y1,y2,y3,y4....y_n
		3681
		3682	x/y in pixels
		3683
		3684	2 = x1,x2,x3,x4....x_n
		3685	y1,y2,y3,y4....y_n
		3686	x/y in xrange / yrange coordinate system
		3687
		3688	3 = x1,x2,x3,x4....x_n
		3689	y1,y2,y3,y4....y_n
		3690	r1,r2,r3,r4....r_n
		3691
8224	bpr	3692	x/y in pixels
7614	schaersvoo	3693	r in pixels
		3694
		3695	4 = x1,x2,x3,x4....x_n
		3696	y1,y2,y3,y4....y_n
		3697	r1,r2,r3,r4....r_n
		3698
		3699	x/y in xrange / yrange coordinate system
		3700	r in pixels
		3701
		3702	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3703	Ay1,Ay2,Ay3,Ay4....Ay_n
		3704	Bx1,Bx2,Bx3,Bx4....Bx_n
		3705	By1,By2,By3,By4....By_n
		3706	Cx1,Cx2,Cx3,Cx4....Cx_n
		3707	Cy1,Cy2,Cy3,Cy4....Cy_n
		3708	....
		3709	Zx1,Zx2,Zx3,Zx4....Zx_n
		3710	Zy1,Zy2,Zy3,Zy4....Zy_n
8224	bpr	3711
7614	schaersvoo	3712	x/y in pixels
		3713
		3714	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3715	Ay1,Ay2,Ay3,Ay4....Ay_n
		3716	Bx1,Bx2,Bx3,Bx4....Bx_n
		3717	By1,By2,By3,By4....By_n
		3718	Cx1,Cx2,Cx3,Cx4....Cx_n
		3719	Cy1,Cy2,Cy3,Cy4....Cy_n
		3720	....
		3721	Zx1,Zx2,Zx3,Zx4....Zx_n
		3722	Zy1,Zy2,Zy3,Zy4....Zy_n
		3723
		3724	x/y in xrange / yrange coordinate system
8224	bpr	3725
7614	schaersvoo	3726	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	3727
7614	schaersvoo	3728	x/y in pixels
		3729
		3730	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	3731
7614	schaersvoo	3732	x/y in xrange / yrange coordinate system
		3733
8224	bpr	3734	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	3735
		3736	x/y in pixels
		3737
8224	bpr	3738	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	3739
		3740	x/y in xrange / yrange coordinate system
		3741
		3742	11 = Ax1,Ay1,Ax2,Ay2
		3743	Bx1,By1,Bx2,By2
		3744	Cx1,Cy1,Cx2,Cy2
		3745	Dx1,Dy1,Dx2,Dy2
		3746	......
		3747	Zx1,Zy1,Zx2,Zy2
8224	bpr	3748
7614	schaersvoo	3749	x/y in xrange / yrange coordinate system
		3750
		3751	12 = Ax1,Ay1,Ax2,Ay2
		3752	Bx1,By1,Bx2,By2
		3753	Cx1,Cy1,Cx2,Cy2
		3754	Dx1,Dy1,Dx2,Dy2
		3755	......
		3756	Zx1,Zy1,Zx2,Zy2
8224	bpr	3757
7614	schaersvoo	3758	x/y in pixels
		3759
		3760	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		3761
		3762	x/y in xrange / yrange coordinate system
		3763	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		3764	x/y in pixels
		3765	15 = reply from inputfields,textareas
		3766	reply1,reply2,reply3,...,reply_n
7984	schaersvoo	3767	only fields set write (a.g. will not read 'readonly' inputfield values'
7614	schaersvoo	3768
		3769	16 = read mathml inputfields only
		3770
		3771	17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
		3772	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		3773
		3774	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		3775	19 = return clicked object number (analogue to shape-library onclick)
		3776	20 = return x/y-data in x-range/y-range of all 'draggable' images
		3777	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		3778	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		3779	x/y in xrange / yrange coordinate system
8224	bpr	3780	23 = answertype for a polyline : remove multiple occurences due to reclick on a point to create next polyline segment
7984	schaersvoo	3781	24 = read all inputfield values: even those set 'readonly'
8224	bpr	3782	25 = return all userdrawn arcs in degrees:
		3783	26 = return all userdrawn arcs in radians:
8127	schaersvoo	3784	27 = return (only) userdraw inputfields array: x1:y1:text1,x2:y2:text2...
7614	schaersvoo	3785	*/
		3786
		3787
8257	schaersvoo	3788	void add_read_canvas(int canvas_root_id,int type_reply,int reply_precision){
7614	schaersvoo	3789	/* just 1 reply type allowed */
8074	schaersvoo	3790	fprintf(js_include_file,"\
		3791	\n<!-- begin set_reply_precision() -->\n\
		3792	function set_reply_precision(){\
		3793	var len = userdraw_x.length;\
		3794	var prec = %d;\
		3795	for(var p = 0 ; p < len ; p++ ){\
		3796	userdraw_x[p] = (Math.round(prec*userdraw_x[p]))/prec;\
		3797	userdraw_y[p] = (Math.round(prec*userdraw_y[p]))/prec;\
		3798	};\
		3799	len = userdraw_radius.length;\
		3800	if( len > 0 ){\
		3801	for(var p = 0 ; p < len ; p++ ){\
		3802	userdraw_radius[p] = (Math.round(prec*userdraw_radius[p]))/prec;\
		3803	};\
		3804	};\
		3805	};",reply_precision);
7963	schaersvoo	3806
7614	schaersvoo	3807	switch(type_reply){
8224	bpr	3808	/*
7614	schaersvoo	3809	answers may have:
		3810	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		3811	*/
		3812	case 1: fprintf(js_include_file,"\
8257	schaersvoo	3813	\n<!-- begin function 1 read_canvas%d() -->\n\
		3814	read_canvas%d = function(){\
7614	schaersvoo	3815	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3816	set_reply_precision();\
7614	schaersvoo	3817	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3818	var p = 0;var input_reply = new Array();\
		3819	if( document.getElementById(\"canvas_input0\")){\
		3820	var t = 0;\
		3821	while(document.getElementById(\"canvas_input\"+t)){\
		3822	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3823	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3824	p++;\
		3825	};\
		3826	t++;\
		3827	};\
		3828	};\
		3829	if( typeof userdraw_text != 'undefined' ){\
		3830	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		3831	}\
		3832	else\
		3833	{\
		3834	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		3835	}\
		3836	}\
		3837	else\
		3838	{\
		3839	if( typeof userdraw_text != 'undefined' ){\
		3840	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		3841	}\
		3842	else\
		3843	{\
		3844	return userdraw_x+\"\\n\"+userdraw_y;\
		3845	}\
		3846	};\
8108	schaersvoo	3847	};\n\
8257	schaersvoo	3848	<!-- end function 1 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	3849	break;
		3850	case 2: fprintf(js_include_file,"\
8257	schaersvoo	3851	\n<!-- begin function 2 read_canvas%d() -->\n\
		3852	read_canvas%d = function(){\
7614	schaersvoo	3853	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3854	set_reply_precision();\
7614	schaersvoo	3855	var reply_x = new Array();var reply_y = new Array();var p = 0;\
8074	schaersvoo	3856	var prec = %d;\
7614	schaersvoo	3857	while(userdraw_x[p]){\
8074	schaersvoo	3858	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		3859	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	3860	p++;\
		3861	};\
		3862	if(p == 0){alert(\"nothing drawn...\");return;};\
		3863	if( document.getElementById(\"canvas_input0\")){\
		3864	var p = 0;var input_reply = new Array();\
		3865	if( document.getElementById(\"canvas_input0\")){\
		3866	var t = 0;\
		3867	while(document.getElementById(\"canvas_input\"+t)){\
		3868	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3869	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3870	p++;\
		3871	};\
		3872	t++;\
		3873	};\
		3874	};\
		3875	if( typeof userdraw_text != 'undefined' ){\
		3876	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3877	}\
		3878	else\
		3879	{\
		3880	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		3881	}\
		3882	}\
		3883	else\
		3884	{\
		3885	if( typeof userdraw_text != 'undefined' ){\
		3886	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		3887	}\
		3888	else\
		3889	{\
		3890	return reply_x+\"\\n\"+reply_y;\
		3891	};\
		3892	};\
8108	schaersvoo	3893	};\n\
8257	schaersvoo	3894	<!-- end function 2 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	3895	break;
		3896	case 3: fprintf(js_include_file,"\
8257	schaersvoo	3897	\n<!-- begin function 3 read_canvas%d() -->\n\
		3898	read_canvas%d = function(){\
7614	schaersvoo	3899	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3900	set_reply_precision();\
7614	schaersvoo	3901	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3902	var p = 0;var input_reply = new Array();\
		3903	if( document.getElementById(\"canvas_input0\")){\
		3904	var t = 0;\
		3905	while(document.getElementById(\"canvas_input\"+t)){\
		3906	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3907	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3908	p++;\
		3909	};\
		3910	t++;\
		3911	};\
		3912	};\
		3913	if( typeof userdraw_text != 'undefined' ){\
		3914	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3915	}\
		3916	else\
		3917	{\
		3918	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3919	}\
		3920	}\
		3921	else\
		3922	{\
		3923	if( typeof userdraw_text != 'undefined' ){\
		3924	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		3925	}\
		3926	else\
		3927	{\
		3928	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		3929	}\
		3930	}\
8108	schaersvoo	3931	};\n\
8257	schaersvoo	3932	<!-- end function 3 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	3933	break;
		3934	case 4: fprintf(js_include_file,"\
8257	schaersvoo	3935	\n<!-- begin function 4 read_canvas%d() -->\n\
		3936	read_canvas%d = function(){\
8074	schaersvoo	3937	var prec = %d;\
7614	schaersvoo	3938	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3939	while(userdraw_x[p]){\
8074	schaersvoo	3940	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		3941	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;;\
7614	schaersvoo	3942	p++;\
		3943	};\
		3944	if(p == 0){alert(\"nothing drawn...\");return;};\
		3945	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3946	var p = 0;var input_reply = new Array();\
		3947	if( document.getElementById(\"canvas_input0\")){\
		3948	var t = 0;\
		3949	while(document.getElementById(\"canvas_input\"+t)){\
		3950	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3951	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3952	p++;\
		3953	};\
		3954	t++;\
		3955	};\
		3956	};\
		3957	if( typeof userdraw_text != 'undefined' ){\
		3958	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3959	}\
		3960	else\
		3961	{\
		3962	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3963	}\
		3964	}\
		3965	else\
		3966	{\
		3967	if( typeof userdraw_text != 'undefined' ){\
		3968	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		3969	}\
		3970	else\
		3971	{\
		3972	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		3973	}\
		3974	};\
8108	schaersvoo	3975	};\n\
8257	schaersvoo	3976	<!-- end function 4 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	3977	break;
8224	bpr	3978	/*
		3979	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3980	used for userdraw multiple paths
7614	schaersvoo	3981	*/
		3982	case 5: fprintf(js_include_file,"\
8257	schaersvoo	3983	\n<!-- begin function 5 read_canvas%d() -->\n\
		3984	read_canvas%d = function(){\
8074	schaersvoo	3985	set_reply_precision();\
7614	schaersvoo	3986	var p = 0;\
		3987	var reply = \"\";\
		3988	for(p = 0; p < userdraw_x.length;p++){\
		3989	if(userdraw_x[p] != null ){\
		3990	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		3991	};\
		3992	};\
		3993	if(p == 0){alert(\"nothing drawn...\");return;};\
		3994	userdraw_x = [];userdraw_y = [];\
		3995	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3996	var p = 0;var input_reply = new Array();\
		3997	if( document.getElementById(\"canvas_input0\")){\
		3998	var t = 0;\
		3999	while(document.getElementById(\"canvas_input\"+t)){\
		4000	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4001	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4002	p++;\
		4003	};\
		4004	t++;\
		4005	};\
		4006	};\
		4007	if( typeof userdraw_text != 'undefined' ){\
		4008	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4009	}\
		4010	else\
		4011	{\
		4012	return reply +\"\\n\"+input_reply;\
		4013	}\
		4014	}\
		4015	else\
		4016	{\
		4017	if( typeof userdraw_text != 'undefined' ){\
		4018	return reply+\"\\n\"+userdraw_text;\
		4019	}\
		4020	else\
		4021	{\
		4022	return reply;\
		4023	}\
		4024	};\
8108	schaersvoo	4025	};\n\
8257	schaersvoo	4026	<!-- end function 5 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4027	break;
8224	bpr	4028	/*
		4029	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		4030	used for userdraw multiple paths
7614	schaersvoo	4031	*/
		4032	case 6: fprintf(js_include_file,"\
8257	schaersvoo	4033	\n<!-- begin function 6 read_canvas%d() -->\n\
		4034	read_canvas%d = function(){\
7614	schaersvoo	4035	var p = 0;\
		4036	var reply = \"\";\
		4037	var tmp_x = new Array();\
		4038	var tmp_y = new Array();\
8074	schaersvoo	4039	var prec = %d;\
7614	schaersvoo	4040	for(p = 0 ; p < userdraw_x.length; p++){\
		4041	tmp_x = userdraw_x[p];\
		4042	tmp_y = userdraw_y[p];\
		4043	if(tmp_x != null){\
		4044	for(var i = 0 ; i < tmp_x.length ; i++){\
8074	schaersvoo	4045	tmp_x[i] = (Math.round(prec*(px2x(tmp_x[i]))))/prec;\
		4046	tmp_y[i] = (Math.round(prec*(px2y(tmp_y[i]))))/prec;\
7614	schaersvoo	4047	};\
		4048	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		4049	};\
		4050	};\
		4051	if(p == 0){alert(\"nothing drawn...\");return;};\
		4052	userdraw_x = [];userdraw_y = [];\
		4053	if( document.getElementById(\"canvas_input0\") ){\
		4054	var p = 0;var input_reply = new Array();\
		4055	if( document.getElementById(\"canvas_input0\")){\
		4056	var t = 0;\
		4057	while(document.getElementById(\"canvas_input\"+t)){\
		4058	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4059	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4060	p++;\
		4061	};\
		4062	t++;\
		4063	};\
		4064	};\
		4065	if( typeof userdraw_text != 'undefined' ){\
		4066	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4067	}\
		4068	else\
		4069	{\
		4070	return reply +\"\\n\"+input_reply;\
		4071	}\
		4072	}\
		4073	else\
		4074	{\
		4075	if( typeof userdraw_text != 'undefined' ){\
		4076	return reply +\"\\n\"+userdraw_text;\
		4077	}\
		4078	else\
		4079	{\
		4080	return reply;\
		4081	}\
		4082	};\
8108	schaersvoo	4083	};\n\
8257	schaersvoo	4084	<!-- end function 6 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4085	break;
		4086	case 7: fprintf(js_include_file,"\
8257	schaersvoo	4087	\n<!-- begin function 7 read_canvas%d() -->\n\
		4088	read_canvas%d = function(){\
8074	schaersvoo	4089	set_reply_precision();\
7614	schaersvoo	4090	var reply = new Array();\
		4091	var p = 0;\
		4092	while(userdraw_x[p]){\
		4093	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		4094	p++;\
		4095	};\
		4096	if(p == 0){alert(\"nothing drawn...\");return;};\
		4097	if( document.getElementById(\"canvas_input0\") ){\
		4098	var p = 0;var input_reply = new Array();\
		4099	if( document.getElementById(\"canvas_input0\")){\
		4100	var t = 0;\
		4101	while(document.getElementById(\"canvas_input\"+t)){\
		4102	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4103	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4104	p++;\
		4105	};\
		4106	t++;\
		4107	};\
		4108	};\
		4109	if( typeof userdraw_text != 'undefined' ){\
		4110	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4111	}\
		4112	else\
		4113	{\
		4114	return reply+\"\\n\"+input_reply;\
		4115	}\
7862	schaersvoo	4116	}\
7614	schaersvoo	4117	else\
		4118	{\
		4119	if( typeof userdraw_text != 'undefined' ){\
		4120	return reply+\"\\n\"+userdraw_text;\
		4121	}\
		4122	else\
		4123	{\
		4124	return reply;\
		4125	}\
		4126	};\
8108	schaersvoo	4127	};\n\
8257	schaersvoo	4128	<!-- end function 7 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4129	break;
		4130	case 8: fprintf(js_include_file,"\
8257	schaersvoo	4131	\n<!-- begin function 8 read_canvas%d() -->\n\
		4132	read_canvas%d = function(){\
7614	schaersvoo	4133	var reply = new Array();\
		4134	var p = 0;\
8074	schaersvoo	4135	var prec = %d;\
7614	schaersvoo	4136	while(userdraw_x[p]){\
8074	schaersvoo	4137	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	4138	p++;\
		4139	};\
		4140	if(p == 0){alert(\"nothing drawn...\");return;};\
		4141	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		4142	var p = 0;var input_reply = new Array();\
		4143	if( document.getElementById(\"canvas_input0\")){\
		4144	var t = 0;\
		4145	while(document.getElementById(\"canvas_input\"+t)){\
		4146	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4147	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4148	p++;\
		4149	};\
		4150	t++;\
		4151	};\
		4152	};\
		4153	if( typeof userdraw_text != 'undefined' ){\
		4154	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4155	}\
		4156	else\
		4157	{\
		4158	return reply +\"\\n\"+input_reply;\
		4159	}\
		4160	}\
		4161	else\
		4162	{\
		4163	if( typeof userdraw_text != 'undefined' ){\
		4164	return reply +\"\\n\"+userdraw_text;\
		4165	}\
		4166	else\
		4167	{\
		4168	return reply;\
		4169	}\
		4170	};\
8108	schaersvoo	4171	};\n\
8257	schaersvoo	4172	<!-- end function 8 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4173	break;
		4174	case 9: fprintf(js_include_file,"\
8257	schaersvoo	4175	\n<!-- begin function 9 read_canvas%d() -->\n\
		4176	read_canvas%d = function(){\
8074	schaersvoo	4177	set_reply_precision();\
7614	schaersvoo	4178	var reply = new Array();\
		4179	var p = 0;\
		4180	while(userdraw_x[p]){\
		4181	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		4182	p++;\
		4183	};\
		4184	if(p == 0){alert(\"nothing drawn...\");return;};\
		4185	if( document.getElementById(\"canvas_input0\") ){\
		4186	var p = 0;var input_reply = new Array();\
		4187	if( document.getElementById(\"canvas_input0\")){\
		4188	var t = 0;\
		4189	while(document.getElementById(\"canvas_input\"+t)){\
		4190	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4191	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4192	p++;\
		4193	};\
		4194	t++;\
		4195	};\
		4196	};\
		4197	if( typeof userdraw_text != 'undefined' ){\
		4198	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4199	}\
		4200	else\
		4201	{\
		4202	return reply +\"\\n\"+input_reply;\
		4203	}\
		4204	}\
		4205	else\
		4206	{\
		4207	if( typeof userdraw_text != 'undefined' ){\
		4208	return reply +\"\\n\"+userdraw_text;\
		4209	}\
		4210	else\
		4211	{\
		4212	return reply;\
		4213	}\
		4214	};\
8108	schaersvoo	4215	};\n\
8257	schaersvoo	4216	<!-- end function 9 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4217	break;
		4218	case 10: fprintf(js_include_file,"\
8257	schaersvoo	4219	\n<!-- begin function 10 read_canvas%d() -->\n\
		4220	read_canvas%d = function(){\
7614	schaersvoo	4221	var reply = new Array();\
		4222	var p = 0;\
8074	schaersvoo	4223	var prec = %d;\
7614	schaersvoo	4224	while(userdraw_x[p]){\
8074	schaersvoo	4225	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	4226	p++;\
		4227	};\
		4228	if(p == 0){alert(\"nothing drawn...\");return;};\
		4229	if( document.getElementById(\"canvas_input0\") ){\
		4230	var p = 0;var input_reply = new Array();\
		4231	if( document.getElementById(\"canvas_input0\")){\
		4232	var t = 0;\
		4233	while(document.getElementById(\"canvas_input\"+t)){\
		4234	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4235	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4236	p++;\
		4237	};\
		4238	t++;\
		4239	};\
		4240	};\
		4241	if( typeof userdraw_text != 'undefined' ){\
		4242	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4243	}\
		4244	else\
		4245	{\
		4246	return reply +\"\\n\"+input_reply;\
		4247	}\
		4248	}\
		4249	else\
		4250	{\
		4251	if( typeof userdraw_text != 'undefined' ){\
		4252	return reply +\"\\n\"+userdraw_text;\
		4253	}\
		4254	else\
		4255	{\
		4256	return reply;\
		4257	}\
		4258	};\
8108	schaersvoo	4259	};\n\
8257	schaersvoo	4260	<!-- end function 10 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4261	break;
		4262	case 11: fprintf(js_include_file,"\
8257	schaersvoo	4263	\n<!-- begin function 11 read_canvas%d() -->\n\
		4264	read_canvas%d = function(){\
7614	schaersvoo	4265	var reply = \"\";\
		4266	var p = 0;\
8074	schaersvoo	4267	var prec = %d;\
7614	schaersvoo	4268	while(userdraw_x[p]){\
8074	schaersvoo	4269	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	4270	p = p+2;\
		4271	};\
		4272	if(p == 0){alert(\"nothing drawn...\");return;};\
		4273	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		4274	var p = 0;var input_reply = new Array();\
		4275	if( document.getElementById(\"canvas_input0\")){\
		4276	var t = 0;\
		4277	while(document.getElementById(\"canvas_input\"+t)){\
		4278	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4279	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4280	p++;\
		4281	};\
		4282	t++;\
		4283	};\
		4284	};\
		4285	if( typeof userdraw_text != 'undefined' ){\
		4286	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4287	}\
		4288	else\
		4289	{\
		4290	return reply +\"\\n\"+input_reply;\
		4291	}\
		4292	}\
		4293	else\
		4294	{\
		4295	if( typeof userdraw_text != 'undefined' ){\
		4296	return reply +\"\\n\"+userdraw_text;\
		4297	}\
		4298	else\
		4299	{\
		4300	return reply;\
		4301	}\
		4302	};\
8108	schaersvoo	4303	};\n\
8257	schaersvoo	4304	<!-- end function 11 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4305	break;
		4306	case 12: fprintf(js_include_file,"\
8257	schaersvoo	4307	\n<!-- begin function 12 read_canvas%d() -->\n\
		4308	read_canvas%d = function(){\
8074	schaersvoo	4309	set_reply_precision();\
7614	schaersvoo	4310	var reply = \"\";\
		4311	var p = 0;\
		4312	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		4313	if(userdraw_x[p] != null){\
		4314	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		4315	};\
		4316	};\
		4317	if(p == 0){alert(\"nothing drawn...\");return;};\
		4318	if( document.getElementById(\"canvas_input0\") ){\
		4319	var p = 0;var input_reply = new Array();\
		4320	if( document.getElementById(\"canvas_input0\")){\
		4321	var t = 0;\
		4322	while(document.getElementById(\"canvas_input\"+t)){\
		4323	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4324	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4325	p++;\
		4326	};\
		4327	t++;\
		4328	};\
		4329	};\
		4330	if( typeof userdraw_text != 'undefined' ){\
		4331	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4332	}\
		4333	else\
		4334	{\
		4335	return reply +\"\\n\"+input_reply;\
		4336	}\
		4337	}\
		4338	else\
		4339	{\
		4340	if( typeof userdraw_text != 'undefined' ){\
		4341	return reply +\"\\n\"+userdraw_text\
		4342	}\
		4343	else\
		4344	{\
		4345	return reply;\
		4346	}\
		4347	};\
8108	schaersvoo	4348	};\n\
8257	schaersvoo	4349	<!-- end function 12 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4350	break;
		4351	case 13: fprintf(js_include_file,"\
8257	schaersvoo	4352	\n<!-- begin function 13 read_canvas%d() -->\n\
		4353	read_canvas%d = function(){\
7614	schaersvoo	4354	var reply = new Array();\
		4355	var p = 0;var i = 0;\
8074	schaersvoo	4356	var prec = %d;\
7614	schaersvoo	4357	while(userdraw_x[p]){\
8074	schaersvoo	4358	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	4359	p = p+2;i++;\
		4360	};\
		4361	if(p == 0){alert(\"nothing drawn...\");return;};\
		4362	if( document.getElementById(\"canvas_input0\") ){\
		4363	var p = 0;var input_reply = new Array();\
		4364	if( document.getElementById(\"canvas_input0\")){\
		4365	var t = 0;\
		4366	while(document.getElementById(\"canvas_input\"+t)){\
		4367	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4368	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4369	p++;\
		4370	};\
		4371	t++;\
		4372	};\
		4373	};\
		4374	if( typeof userdraw_text != 'undefined' ){\
		4375	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4376	}\
		4377	else\
		4378	{\
		4379	return reply +\"\\n\"+input_reply;\
		4380	}\
		4381	}\
		4382	else\
		4383	{\
		4384	if( typeof userdraw_text != 'undefined' ){\
		4385	return reply +\"\\n\"+userdraw_text\
		4386	}\
		4387	else\
		4388	{\
		4389	return reply;\
		4390	}\
		4391	};\
8108	schaersvoo	4392	};\n\
8257	schaersvoo	4393	<!-- end function 13 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4394	break;
		4395	case 14: fprintf(js_include_file,"\
8257	schaersvoo	4396	\n<!-- begin function 14 read_canvas%d() -->\n\
		4397	read_canvas%d = function(){\
8074	schaersvoo	4398	set_reply_precision();\
7614	schaersvoo	4399	var reply = new Array();\
		4400	var p = 0;var i = 0;\
		4401	while(userdraw_x[p]){\
		4402	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		4403	p = p+2;i++;\
		4404	};\
		4405	if(p == 0){alert(\"nothing drawn...\");return;};\
		4406	if( document.getElementById(\"canvas_input0\") ){\
		4407	var p = 0;var input_reply = new Array();\
		4408	if( document.getElementById(\"canvas_input0\")){\
		4409	var t = 0;\
		4410	while(document.getElementById(\"canvas_input\"+t)){\
		4411	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4412	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4413	p++;\
		4414	};\
		4415	t++;\
		4416	};\
		4417	};\
		4418	if( typeof userdraw_text != 'undefined' ){\
		4419	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4420	}\
		4421	else\
		4422	{\
		4423	return reply +\"\\n\"+input_reply;\
		4424	}\
		4425	}\
		4426	else\
		4427	{\
		4428	if( typeof userdraw_text != 'undefined' ){\
		4429	return reply +\"\\n\"+userdraw_text;\
		4430	}\
		4431	else\
		4432	{\
		4433	return reply;\
		4434	}\
		4435	};\
8108	schaersvoo	4436	};\n\
8257	schaersvoo	4437	<!-- end function 14 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4438	break;
		4439	case 15: fprintf(js_include_file,"\
8257	schaersvoo	4440	\n<!-- begin function 15 read_canvas%d() -->\n\
		4441	read_canvas%d = function(){\
7614	schaersvoo	4442	var input_reply = new Array();\
		4443	var p = 0;\
		4444	if( document.getElementById(\"canvas_input0\")){\
		4445	var t = 0;\
		4446	while(document.getElementById(\"canvas_input\"+t)){\
		4447	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4448	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4449	p++;\
		4450	};\
		4451	t++;\
		4452	};\
		4453	};\
		4454	if( typeof userdraw_text != 'undefined' ){\
		4455	return input_reply +\"\\n\"+userdraw_text;\
		4456	}\
		4457	else\
		4458	{\
		4459	return input_reply;\
		4460	};\
8108	schaersvoo	4461	};\n\
8257	schaersvoo	4462	<!-- end function 15 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4463	break;
		4464	case 16: fprintf(js_include_file,"\
7653	schaersvoo	4465	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	4466	function read_mathml(){\
		4467	var reply = new Array();\
		4468	var p = 0;\
		4469	if( document.getElementById(\"mathml0\")){\
		4470	while(document.getElementById(\"mathml\"+p)){\
		4471	reply[p] = document.getElementById(\"mathml\"+p).value;\
		4472	p++;\
		4473	};\
		4474	};\
		4475	return reply;\
		4476	};\
		4477	this.read_mathml = read_mathml;\n\
7653	schaersvoo	4478	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	4479	break;
		4480	case 17: fprintf(js_include_file,"\
8257	schaersvoo	4481	\n<!-- begin function 17 read_canvas%d() -->\n\
		4482	read_canvas%d = function(){\
7614	schaersvoo	4483	if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
		4484	return userdraw_text;\
8108	schaersvoo	4485	};\n\
8257	schaersvoo	4486	<!-- end function 17 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4487	break;
		4488	case 18: fprintf(js_include_file,"\
8257	schaersvoo	4489	\n<!-- begin function 18 read_canvas%d() -->\n\
		4490	read_canvas%d = function(){\
7614	schaersvoo	4491	var p = 0;\
		4492	var reply = new Array();\
		4493	var name;\
		4494	var t = true;\
8000	schaersvoo	4495	var h;var m;var s;\
7614	schaersvoo	4496	while(t){\
8000	schaersvoo	4497	try{\
		4498	name = eval('clocks'+p);\
		4499	h = name.H;m = name.M;s = name.S;\
		4500	if(s < 0){s = 60 + s;m = m - 1;};\
		4501	if(m < 0){m = 60 + m;h = h - 1;};\
		4502	if(h < 0){h = 12 + h;};\
		4503	h = parseInt((h+m/60+s/3600)%%12);m = parseInt((m + s/60)%%60);s = parseInt(s%%60);\
		4504	reply[p] = h+\":\"+m+\":\"+s;\
		4505	p++;\
		4506	}catch(e){t=false;};\
7614	schaersvoo	4507	};\
8000	schaersvoo	4508	if( p == 0 ){alert(\"clock(s) not modified...\");return;}\
7614	schaersvoo	4509	return reply;\
8108	schaersvoo	4510	};\n\
8257	schaersvoo	4511	<!-- end function 18 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4512	break;
		4513	case 19: fprintf(js_include_file,"\
8257	schaersvoo	4514	\n<!-- begin function 19 read_canvas%d() -->\n\
		4515	read_canvas%d = function(){\
7614	schaersvoo	4516	return reply[0];\
8108	schaersvoo	4517	};\n\
8257	schaersvoo	4518	<!-- end function 19 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
8130	schaersvoo	4519	break;
7614	schaersvoo	4520	case 20: fprintf(js_include_file,"\
8257	schaersvoo	4521	\n<!-- begin function 20 read_canvas%d() -->\n\
		4522	read_canvas%d = function(){\
8074	schaersvoo	4523	var prec = %d;\
7614	schaersvoo	4524	var len = ext_drag_images.length;\
		4525	var reply = new Array(len);\
		4526	for(var p = 0 ; p < len ; p++){\
		4527	var img = ext_drag_images[p];\
8074	schaersvoo	4528	reply[p] = (Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
7614	schaersvoo	4529	};\
		4530	return reply;\
8108	schaersvoo	4531	};\n\
8257	schaersvoo	4532	<!-- end function 20 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4533	break;
		4534	case 21: fprintf(js_include_file,"\
8257	schaersvoo	4535	\n<!-- begin function 21 read_canvas%d() -->\n\
		4536	read_canvas%d = function(){\
7614	schaersvoo	4537	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		4538	var reply_coord = new Array();var p = 0;\
8074	schaersvoo	4539	var prec = %d;\
7614	schaersvoo	4540	while(userdraw_x[p]){\
8074	schaersvoo	4541	reply_coord[p] = \"(\"+(Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\")\";\
7614	schaersvoo	4542	p++;\
		4543	};\
		4544	if(p == 0){alert(\"nothing drawn...\");return;};\
		4545	if( document.getElementById(\"canvas_input0\") ){\
		4546	var p = 0;var input_reply = new Array();\
		4547	if( document.getElementById(\"canvas_input0\")){\
		4548	var t = 0;\
		4549	while(document.getElementById(\"canvas_input\"+t)){\
		4550	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4551	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4552	p++;\
		4553	};\
		4554	t++;\
		4555	};\
		4556	};\
		4557	if( typeof userdraw_text != 'undefined' ){\
		4558	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4559	}\
		4560	else\
		4561	{\
		4562	return reply_coord+\"\\n\"+input_reply;\
		4563	}\
		4564	}\
		4565	else\
		4566	{\
		4567	if( typeof userdraw_text != 'undefined' ){\
		4568	return reply_coord+\"\\n\"+userdraw_text;\
		4569	}\
		4570	else\
		4571	{\
		4572	return reply_coord;\
		4573	};\
		4574	};\
8108	schaersvoo	4575	};\n\
8257	schaersvoo	4576	<!-- end function 21 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4577	break;
		4578	case 22: fprintf(js_include_file,"\
8257	schaersvoo	4579	\n<!-- begin function 22 read_canvas%d() -->\n\
		4580	read_canvas%d = function(){\
7614	schaersvoo	4581	var reply = new Array();\
7963	schaersvoo	4582	var lu = userdraw_x.length;\
		4583	if(lu == 0){alert(\"nothing drawn...\");return;};\
7614	schaersvoo	4584	var idx = 0;\
8074	schaersvoo	4585	var prec = %d;\
7963	schaersvoo	4586	for(var p = 0 ; p < lu ; p++){\
8074	schaersvoo	4587	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;idx++;\
		4588	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;idx++;\
7614	schaersvoo	4589	};\
		4590	if( document.getElementById(\"canvas_input0\") ){\
		4591	var p = 0;var input_reply = new Array();\
		4592	if( document.getElementById(\"canvas_input0\")){\
		4593	var t = 0;\
		4594	while(document.getElementById(\"canvas_input\"+t)){\
		4595	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4596	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4597	p++;\
		4598	};\
		4599	t++;\
		4600	};\
		4601	};\
		4602	if( typeof userdraw_text != 'undefined' ){\
		4603	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4604	}\
		4605	else\
		4606	{\
		4607	return reply +\"\\n\"+input_reply;\
		4608	}\
		4609	}\
		4610	else\
		4611	{\
		4612	if( typeof userdraw_text != 'undefined' ){\
		4613	return reply +\"\\n\"+userdraw_text;\
		4614	}\
		4615	else\
		4616	{\
		4617	return reply;\
		4618	}\
		4619	};\
8108	schaersvoo	4620	};\n\
8257	schaersvoo	4621	<!-- end function 22 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4622	break;
7782	schaersvoo	4623	case 23: fprintf(js_include_file,"\
8257	schaersvoo	4624	\n<!-- begin function 23 read_canvas%d() default 5 px marge -->\n\
		4625	read_canvas%d = function(){\
7782	schaersvoo	4626	if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
		4627	var lu = userdraw_x.length;\
		4628	if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
7962	schaersvoo	4629	var reply_x = new Array();var reply_y = new Array();\
		4630	var marge = 5;var p = 0;\
8074	schaersvoo	4631	var prec = %d;\
7782	schaersvoo	4632	for(var i = 0; i < lu - 1 ; i++ ){\
7962	schaersvoo	4633	if( Math.abs(userdraw_x[i] - userdraw_x[i+1])){\
8074	schaersvoo	4634	reply_x[p] = (Math.round(prec(px2x(userdraw_x[i]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[i]))))/prec;\
7962	schaersvoo	4635	if( isNaN(reply_x[p]) \|\| isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
		4636	p++;\
7782	schaersvoo	4637	};\
8074	schaersvoo	4638	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	4639	};\
		4640	if( document.getElementById(\"canvas_input0\")){\
		4641	var p = 0;var input_reply = new Array();\
		4642	if( document.getElementById(\"canvas_input0\")){\
		4643	var t = 0;\
		4644	while(document.getElementById(\"canvas_input\"+t)){\
		4645	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4646	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4647	p++;\
		4648	};\
		4649	t++;\
		4650	};\
		4651	};\
		4652	if( typeof userdraw_text != 'undefined' ){\
		4653	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4654	}\
		4655	else\
		4656	{\
		4657	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		4658	}\
		4659	}\
		4660	else\
		4661	{\
		4662	if( typeof userdraw_text != 'undefined' ){\
		4663	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		4664	}\
		4665	else\
		4666	{\
		4667	return reply_x+\"\\n\"+reply_y;\
		4668	};\
		4669	};\
8108	schaersvoo	4670	};\n\
8257	schaersvoo	4671	<!-- end function 23 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7782	schaersvoo	4672	break;
7984	schaersvoo	4673	case 24: fprintf(js_include_file,"\n\
8257	schaersvoo	4674	<!-- begin function 24 read_canvas%d() -->\n\
		4675	read_canvas%d = function(){\
7984	schaersvoo	4676	var input_reply = new Array();\
		4677	var p = 0;\
		4678	if( document.getElementById(\"canvas_input0\")){\
		4679	while(document.getElementById(\"canvas_input\"+p)){\
		4680	input_reply[p] = document.getElementById(\"canvas_input\"+p).value;\
		4681	p++;\
		4682	};\
		4683	return input_reply;\
		4684	};\
8108	schaersvoo	4685	};\n\
8257	schaersvoo	4686	<!-- end function 24 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7984	schaersvoo	4687	break;
8083	schaersvoo	4688	case 25:
8257	schaersvoo	4689	fprintf(js_include_file,"\n<!-- begin function 25 read_canvas%d() : angle(s) in degrees-->\n\
		4690	read_canvas%d = function(){\
8083	schaersvoo	4691	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		4692	var lu = userdraw_radius.length;\
		4693	var prec = %d;\
		4694	var angle_reply = new Array(lu);\
		4695	for(var p = 0 ; p < lu ; p++){\
		4696	angle_reply[p] = (Math.round(prec180(userdraw_radius[p])/Math.PI))/prec;\
		4697	};\
		4698	return angle_reply;\
8108	schaersvoo	4699	};\n\
8257	schaersvoo	4700	<!-- end function 25 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	4701	break;
		4702	case 26:
8257	schaersvoo	4703	fprintf(js_include_file,"\n<!-- begin function 26 read_canvas%d() : angle(s) in radians-->\n\
		4704	read_canvas%d = function(){\
8083	schaersvoo	4705	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		4706	var lu = userdraw_radius.length;\
		4707	var prec = %d;\
		4708	var angle_reply = new Array(lu);\
		4709	for(var p = 0 ; p < lu ; p++){\
		4710	angle_reply[p] = (Math.round(prec*(userdraw_radius[p])))/prec;\
		4711	};\
		4712	return angle_reply;\
8108	schaersvoo	4713	};\n\
8257	schaersvoo	4714	<!-- end function 26 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	4715	break;
8127	schaersvoo	4716	case 27:
8257	schaersvoo	4717	fprintf(js_include_file,"\n<!-- begin function 27 read_canvas%d() : inputfield(s) location and their values : -->\n\
		4718	read_canvas%d = function(){\
8127	schaersvoo	4719	var lu = userdraw_x.length;\
		4720	if( lu < 1){alert(\"nothing drawn...\");return;}\
		4721	set_reply_precision();\
		4722	var prec = %d;\
		4723	for(var p = 0 ; p < lu ; p++){\
		4724	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\":\"+ document.getElementById(\"canvas_input\"+p).value;\
		4725	};\
		4726	return reply;\
		4727	};\n\
8257	schaersvoo	4728	<!-- end function 27 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8127	schaersvoo	4729	break;
7614	schaersvoo	4730	default: canvas_error("hmmm unknown replyformat...");break;
		4731	}
		4732	return;
		4733	}
		4734
		4735
8224	bpr	4736	/*
		4737	add drawfunction :
7614	schaersvoo	4738	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		4739	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		4740	- grid / mathml
		4741	- will not scale or zoom in
		4742	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
8224	bpr	4743	- is printed directly into 'js_include_file'
7614	schaersvoo	4744	*/
		4745
		4746	void add_javascript_functions(int js_functions[],int canvas_root_id){
		4747	int i;
		4748	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
		4749	if( js_functions[i] == 1){
		4750	switch(i){
		4751	case DRAG_EXTERNAL_IMAGE:
		4752	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	4753	var external_canvas = create_canvas%d(7,xsize,ysize);\
		4754	var external_ctx = external_canvas.getContext(\"2d\");\
		4755	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		4756	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		4757	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		4758	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		4759	var selected_image = null;\
		4760	var ext_image_cnt = 0;\
		4761	var ext_drag_images = new Array();\
		4762	function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
		4763	ext_image_cnt = idx;\
		4764	var image = new Image();\
		4765	image.src = URL;\
		4766	image.onload = function(){\
		4767	if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
		4768	if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
		4769	if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
8112	schaersvoo	4770	var img = new Array(10);\
7653	schaersvoo	4771	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
		4772	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
		4773	ext_drag_images[idx] = img;\
		4774	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4775	};\
		4776	};\
		4777	function dragstop(evt){\
		4778	selected_image = null;return;\
		4779	};\
		4780	function dragxy(evt){\
		4781	if( selected_image != null ){\
		4782	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4783	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4784	var s_img = ext_drag_images[selected_image];\
		4785	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		4786	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
		4787	ext_drag_images[selected_image] = s_img;\
		4788	external_ctx.clearRect(0,0,xsize,ysize);\
		4789	for(var i = 0; i <= ext_image_cnt ; i++){\
		4790	var img = ext_drag_images[i];\
		4791	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4792	};\
		4793	};\
		4794	};\
		4795	function setxy(evt){\
		4796	if( ! selected_image && evt.which == 1 ){\
		4797	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4798	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4799	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		4800	var ym = evt.clientY - external_canvas_rect.top + yoff;\
		4801	for(var p = 0 ; p <= ext_image_cnt ; p++){\
		4802	var img = ext_drag_images[p];\
		4803	if( img[0] == 1 ){\
		4804	var w = img.width;\
		4805	var h = img.height;\
		4806	if( xm > img[6] && xm < img[6] + img[4]){\
		4807	if( ym > img[7] && ym < img[7] + img[5]){\
		4808	img[6] = xm;\
		4809	img[7] = ym;\
		4810	ext_drag_images[p] = img;\
		4811	selected_image = p;\
		4812	dragxy(evt);\
		4813	};\
		4814	};\
		4815	};\
		4816	};\
		4817	}\
		4818	else\
		4819	{\
		4820	selected_image = null;\
		4821	};\
7614	schaersvoo	4822	};",canvas_root_id);
		4823	break;
		4824
		4825	case DRAW_EXTERNAL_IMAGE:
		4826	fprintf(js_include_file,"\n<!-- draw external images -->\n\
8105	schaersvoo	4827	var draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
7614	schaersvoo	4828	var image = new Image();\
		4829	image.src = URL;\
		4830	var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
		4831	image.onload = function(){\
		4832	if( x0 < 1 ){ x0 = 0; };\
		4833	if( y0 < 1 ){ y0 = 0; };\
		4834	if( sx < 1 ){ sx = 0; };\
		4835	if( sy < 1 ){ sy = 0; };\
		4836	if( width < 1 ){ width = image.width;};\
		4837	if( height < 1 ){ height = image.height;};\
		4838	if( swidth < 1 ){ swidth = image.width;};\
		4839	if( sheight < 1 ){ sheight = image.height;};\
		4840	var ml = x0 - sx;\
		4841	var mh = y0 - sy;\
		4842	canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
		4843	canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
		4844	canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
		4845	canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
		4846	canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
		4847	};\
8224	bpr	4848	};",canvas_root_id);
7614	schaersvoo	4849	break;
		4850	case DRAW_GRIDFILL:/* not used for userdraw */
		4851	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
8105	schaersvoo	4852	var draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
7614	schaersvoo	4853	var obj;\
		4854	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4855	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4856	}\
		4857	else\
		4858	{\
		4859	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4860	};\
		4861	var ctx = obj.getContext(\"2d\");\
		4862	var x,y;\
7883	schaersvoo	4863	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4864	ctx.save();\
		4865	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4866	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4867	ctx.moveTo(x,y0);\
		4868	ctx.lineTo(x,ysize);\
		4869	};\
7645	schaersvoo	4870	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	4871	ctx.moveTo(x0,y);\
		4872	ctx.lineTo(xsize,y);\
		4873	};\
		4874	ctx.stroke();\
		4875	ctx.restore();\
7653	schaersvoo	4876	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4877	break;
8224	bpr	4878
7614	schaersvoo	4879	case DRAW_IMAGEFILL:/* not used for userdraw */
		4880	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
8105	schaersvoo	4881	var draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
7614	schaersvoo	4882	var obj;\
		4883	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4884	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4885	}\
		4886	else\
		4887	{\
		4888	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4889	};\
		4890	var ctx = obj.getContext(\"2d\");\
		4891	ctx.save();\
		4892	var img = new Image();\
		4893	img.src = URL;\
		4894	img.onload = function(){\
		4895	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		4896	ctx.drawImage(img,x0,y0,xsize,ysize);\
		4897	}\
		4898	else\
		4899	{\
		4900	var repeat = \"repeat\";\
		4901	if(img.width > xsize - x0){\
		4902	repeat = \"repeat-y\";\
		4903	}\
		4904	else\
		4905	{\
		4906	if( img.height > ysize -x0 ){\
		4907	repeat = \"repeat-x\";\
		4908	}\
		4909	}\
		4910	var pattern = ctx.createPattern(img,repeat);\
		4911	ctx.rect(x0,y0,xsize,ysize);\
		4912	ctx.fillStyle = pattern;\
		4913	}\
		4914	ctx.fill();\
		4915	};\
		4916	ctx.restore();\
		4917	return;\
7653	schaersvoo	4918	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4919	break;
8224	bpr	4920
7614	schaersvoo	4921	case DRAW_DOTFILL:/* not used for userdraw */
		4922	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
8105	schaersvoo	4923	var draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
7614	schaersvoo	4924	var obj;\
		4925	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4926	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4927	}\
		4928	else\
		4929	{\
		4930	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4931	};\
		4932	var ctx = obj.getContext(\"2d\");\
		4933	var x,y;\
		4934	ctx.closePath();\
		4935	ctx.save();\
7645	schaersvoo	4936	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4937	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4938	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4939	for( y = y0 ; y < ysize+dy ; y = y + dy ){\
		4940	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		4941	ctx.closePath();\
		4942	}\
		4943	}\
		4944	ctx.fill();\
		4945	ctx.restore();\
7653	schaersvoo	4946	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4947	break;
7645	schaersvoo	4948
7647	schaersvoo	4949	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	4950	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	4951	var draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	4952	var obj;\
		4953	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4954	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4955	}\
		4956	else\
		4957	{\
		4958	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4959	};\
		4960	var ctx = obj.getContext(\"2d\");\
		4961	var x;\
		4962	var y;\
		4963	ctx.save();\
		4964	ctx.lineWidth = linewidth;\
		4965	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4966	y = ysize;\
		4967	for( x = x0 ; x < xsize ; x = x + dx ){\
		4968	ctx.moveTo(x,y0);\
		4969	ctx.lineTo(xsize,y);\
		4970	y = y - dy;\
		4971	};\
		4972	y = y0;\
		4973	for( x = xsize ; x > 0 ; x = x - dx){\
		4974	ctx.moveTo(x,ysize);\
		4975	ctx.lineTo(x0,y);\
		4976	y = y + dy;\
		4977	};\
		4978	x = x0;\
		4979	for( y = y0 ; y < ysize ; y = y + dy ){\
		4980	ctx.moveTo(xsize,y);\
		4981	ctx.lineTo(x,ysize);\
		4982	x = x + dx;\
		4983	};\
		4984	x = xsize;\
		4985	for( y = ysize ; y > y0 ; y = y - dy ){\
		4986	ctx.moveTo(x,y0);\
		4987	ctx.lineTo(x0,y);\
		4988	x = x - dx;\
		4989	};\
		4990	ctx.stroke();\
		4991	ctx.restore();\
		4992	return;\
7653	schaersvoo	4993	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4994	break;
8224	bpr	4995
7647	schaersvoo	4996	case DRAW_HATCHFILL:/* not used for userdraw */
		4997	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	4998	var draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7647	schaersvoo	4999	var obj;\
		5000	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5001	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5002	}\
		5003	else\
		5004	{\
		5005	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5006	};\
		5007	var ctx = obj.getContext(\"2d\");\
		5008	var x;\
		5009	var y;\
		5010	ctx.save();\
		5011	ctx.lineWidth = linewidth;\
		5012	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5013	y = ysize;\
		5014	for( x = x0 ; x < xsize ; x = x + dx ){\
		5015	ctx.moveTo(x,y0);\
		5016	ctx.lineTo(xsize,y);\
		5017	y = y - dy;\
		5018	};\
		5019	y = y0;\
		5020	for( x = xsize ; x >= dx ; x = x - dx){\
		5021	ctx.moveTo(x,ysize);\
		5022	ctx.lineTo(x0,y);\
		5023	y = y + dy;\
		5024	};\
		5025	ctx.stroke();\
		5026	ctx.restore();\
		5027	return;\
7653	schaersvoo	5028	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	5029	break;
7614	schaersvoo	5030	case DRAW_CIRCLES:/* used for userdraw */
		5031	fprintf(js_include_file,"\n<!-- draw circles -->\n\
8105	schaersvoo	5032	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	5033	ctx.save();\
8071	schaersvoo	5034	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5035	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5036	ctx.lineWidth = line_width;\
		5037	for(var p = 0 ; p < x_points.length ; p++ ){\
		5038	ctx.beginPath();\
		5039	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		5040	ctx.closePath();\
		5041	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5042	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5043	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5044	ctx.stroke();\
		5045	}\
		5046	ctx.restore();\
		5047	return;\
7653	schaersvoo	5048	};");
7614	schaersvoo	5049	break;
7663	schaersvoo	5050	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		5051	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
8105	schaersvoo	5052	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	5053	ctx.save();\
8071	schaersvoo	5054	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7663	schaersvoo	5055	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5056	ctx.lineWidth = line_width;\
		5057	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5058	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5059	ctx.clearRect(0,0,xsize,ysize);\
		5060	ctx.beginPath();\
		5061	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		5062	ctx.moveTo(x_points[p],y_points[p]);\
		5063	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		5064	}\
		5065	ctx.closePath();\
		5066	ctx.stroke();\
		5067	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5068	for(var p = 0 ; p < x_points.length ; p++ ){\
		5069	ctx.beginPath();\
		5070	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		5071	ctx.closePath();ctx.fill();ctx.stroke();\
		5072	};\
		5073	ctx.restore();\
		5074	return;\
		5075	};");
		5076	break;
8224	bpr	5077
7614	schaersvoo	5078	case DRAW_SEGMENTS:/* used for userdraw */
		5079	fprintf(js_include_file,"\n<!-- draw segments -->\n\
8105	schaersvoo	5080	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	5081	ctx.save();\
8071	schaersvoo	5082	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5083	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5084	ctx.lineWidth = line_width;\
		5085	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5086	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5087	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5088	ctx.beginPath();\
		5089	ctx.moveTo(x_points[p],y_points[p]);\
		5090	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		5091	ctx.closePath();\
		5092	ctx.stroke();\
		5093	}\
		5094	ctx.restore();\
		5095	return;\
		5096	};");
		5097	break;
8224	bpr	5098
7614	schaersvoo	5099	case DRAW_LINES:/* used for userdraw */
		5100	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		5101	function calc_line(x1,x2,y1,y2){\
		5102	var marge = 2;\
		5103	if(x1 < x2+marge && x1>x2-marge){\
		5104	return [x1,0,x1,ysize];\
		5105	};\
		5106	if(y1 < y2+marge && y1>y2-marge){\
		5107	return [0,y1,xsize,y1];\
		5108	};\
		5109	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		5110	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		5111	return [0,Y1,xsize,Y2];\
		5112	};\
8105	schaersvoo	5113	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	5114	ctx.save();\
		5115	var line = new Array(4);\
8071	schaersvoo	5116	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5117	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5118	ctx.lineWidth = line_width;\
		5119	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5120	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5121	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5122	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		5123	ctx.beginPath();\
		5124	ctx.moveTo(line[0],line[1]);\
		5125	ctx.lineTo(line[2],line[3]);\
		5126	ctx.closePath();\
		5127	ctx.stroke();\
		5128	}\
		5129	ctx.restore();\
		5130	return;\
		5131	};");
		5132	break;
		5133
8244	schaersvoo	5134	case DRAW_DEMILINES:/* used for userdraw */
		5135	fprintf(js_include_file,"\n<!-- draw demilines -->\n\
		5136	function find_inf_point(x1,y1,x2,y2){\
		5137	if(x1<x2+2 && x1>x2-2){if(y1<y2){return [x1,y1,x1,ysize];}else{return [x1,0,x1,y1];};};\
		5138	var rc = (y2 - y1)/(x2 - x1);var q = y1 - (x1)*rc;\
		5139	if( x1 < x2 ){ return [x1,y1,xsize,rc*xsize+q];}else{return [x1,y1,0,q];};\
		5140	};\
		5141	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){\
		5142	ctx.save();\
		5143	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
		5144	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5145	ctx.lineWidth = line_width;\
		5146	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5147	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5148	var pair = new Array(4);\
		5149	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5150	pair = find_inf_point(x_points[p],y_points[p],x_points[p+1],y_points[p+1]);\
		5151	ctx.beginPath();\
		5152	ctx.moveTo(pair[0],pair[1]);\
		5153	ctx.lineTo(pair[2],pair[3]);\
		5154	ctx.closePath();\
		5155	ctx.stroke();\
		5156	}\
		5157	ctx.restore();\
		5158	return;\
		5159	};");
		5160	break;
		5161
7614	schaersvoo	5162	case DRAW_CROSSHAIRS:/* used for userdraw */
		5163	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
8105	schaersvoo	5164	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	5165	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5166	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5167	ctx.lineWidth = line_width;\
		5168	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5169	var x1,x2,y1,y2;\
		5170	for(var p = 0 ; p < x_points.length ; p++ ){\
		5171	x1 = x_points[p] - crosshair_size;\
		5172	x2 = x_points[p] + crosshair_size;\
		5173	y1 = y_points[p] - crosshair_size;\
		5174	y2 = y_points[p] + crosshair_size;\
		5175	ctx.beginPath();\
		5176	ctx.moveTo(x1,y1);\
		5177	ctx.lineTo(x2,y2);\
		5178	ctx.closePath();\
		5179	ctx.stroke();\
		5180	ctx.beginPath();\
		5181	ctx.moveTo(x2,y1);\
		5182	ctx.lineTo(x1,y2);\
		5183	ctx.closePath();\
		5184	ctx.stroke();\
		5185	}\
		5186	ctx.restore();\
		5187	return;\
7653	schaersvoo	5188	};");
7614	schaersvoo	5189	break;
		5190
		5191	case DRAW_RECTS:/* used for userdraw */
		5192	fprintf(js_include_file,"\n<!-- draw rects -->\n\
8105	schaersvoo	5193	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	5194	ctx.save();\
8071	schaersvoo	5195	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5196	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5197	ctx.lineWidth = line_width;\
		5198	ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
		5199	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		5200	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		5201	ctx.beginPath();\
		5202	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		5203	ctx.closePath();\
		5204	if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5205	ctx.stroke();\
		5206	};\
		5207	ctx.restore();\
		5208	return;\
7653	schaersvoo	5209	};");
7614	schaersvoo	5210	break;
		5211
		5212	case DRAW_ROUNDRECTS:/* used for userdraw */
		5213	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
8105	schaersvoo	5214	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	5215	ctx.save();\
8071	schaersvoo	5216	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5217	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5218	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5219	var x,y,w,h,r;\
		5220	for(var p = 0; p < x_points.length; p = p+2){\
		5221	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);\
		5222	ctx.beginPath();ctx.moveTo(x + r, y);\
		5223	ctx.lineTo(x + w - r, y);\
		5224	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		5225	ctx.lineTo(x + w, y + h - r);\
		5226	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		5227	ctx.lineTo(x + r, y + h);\
		5228	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		5229	ctx.lineTo(x, y + r);\
		5230	ctx.quadraticCurveTo(x, y, x + r, y);\
		5231	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		5232	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5233	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		5234	ctx.stroke();\
		5235	}\
		5236	ctx.restore();\
7653	schaersvoo	5237	};");
8224	bpr	5238	break;
7614	schaersvoo	5239
		5240	case DRAW_ELLIPSES:/* not used for userdraw */
		5241	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
8105	schaersvoo	5242	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	5243	var obj;\
		5244	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5245	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5246	}\
		5247	else\
		5248	{\
		5249	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5250	};\
		5251	var ctx = obj.getContext(\"2d\");\
		5252	ctx.save();\
8071	schaersvoo	5253	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5254	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5255	var cx,cy,ry,rx;\
		5256	ctx.lineWidth = line_width;\
		5257	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		5258	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5259	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5260	for(var p=0;p< x_points.length;p = p+2){\
		5261	ctx.beginPath();\
		5262	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		5263	ctx.translate(cx - rx, cy - ry);\
		5264	ctx.scale(rx, ry);\
		5265	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		5266	if( use_filled == 1 ){ctx.fill();}\
		5267	ctx.stroke();\
		5268	};\
		5269	ctx.restore();\
7653	schaersvoo	5270	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5271	break;
		5272
		5273	case DRAW_PATHS: /* used for userdraw */
		5274	fprintf(js_include_file,"\n<!-- draw paths -->\n\
8105	schaersvoo	5275	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	5276	ctx.save();\
8071	schaersvoo	5277	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5278	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5279	ctx.lineWidth = line_width;\
		5280	ctx.lineJoin = \"round\";\
		5281	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5282	ctx.beginPath();\
		5283	ctx.moveTo(x_points[0],y_points[0]);\
		5284	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		5285	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		5286	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5287	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5288	ctx.stroke();\
		5289	ctx.restore();\
		5290	return;\
		5291	};");
8224	bpr	5292
7614	schaersvoo	5293	break;
		5294	case DRAW_ARROWS:/* used for userdraw */
		5295	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
8105	schaersvoo	5296	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	5297	ctx.save();\
8071	schaersvoo	5298	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5299	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5300	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5301	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5302	ctx.lineWidth = line_width;\
		5303	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5304	ctx.lineCap = \"round\";\
		5305	var x1,y1,x2,y2,dx,dy,len;\
		5306	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
7874	schaersvoo	5307	ctx.save();\
7614	schaersvoo	5308	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		5309	len = Math.sqrt(dxdx+dydy);\
		5310	ctx.translate(x2,y2);\
		5311	ctx.rotate(Math.atan2(dy,dx));\
		5312	ctx.lineCap = \"round\";\
		5313	ctx.beginPath();\
		5314	ctx.moveTo(0,0);\
		5315	ctx.lineTo(-len,0);\
		5316	ctx.closePath();\
		5317	ctx.stroke();\
		5318	ctx.beginPath();\
		5319	ctx.moveTo(0,0);\
		5320	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		5321	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		5322	ctx.closePath();\
		5323	ctx.fill();\
7874	schaersvoo	5324	ctx.restore();\
7614	schaersvoo	5325	if( type == 2 ){\
		5326	ctx.save();\
		5327	ctx.translate(x1,y1);\
		5328	ctx.rotate(Math.atan2(-dy,-dx));\
		5329	ctx.beginPath();\
		5330	ctx.moveTo(0,0);\
		5331	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		5332	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		5333	ctx.closePath();\
		5334	ctx.stroke();\
		5335	ctx.fill();\
7874	schaersvoo	5336	ctx.restore();\
7614	schaersvoo	5337	}\
		5338	}\
		5339	ctx.restore();\
		5340	return;\
7653	schaersvoo	5341	};");
7614	schaersvoo	5342	break;
		5343
		5344	case DRAW_VIDEO:/* not used for userdraw */
		5345	fprintf(js_include_file,"\n<!-- draw video -->\n\
8105	schaersvoo	5346	var draw_video = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	5347	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5348	var video_div = document.createElement(\"div\");\
		5349	canvas_div.appendChild(video_div);\
		5350	video_div.style.position = \"absolute\";\
		5351	video_div.style.left = x+\"px\";\
		5352	video_div.style.top = y+\"px\";\
		5353	video_div.style.width = w+\"px\";\
		5354	video_div.style.height = h+\"px\";\
		5355	var video = document.createElement(\"video\");\
		5356	video_div.appendChild(video);\
		5357	video.style.width = w+\"px\";\
		5358	video.style.height = h+\"px\";\
		5359	video.autobuffer = true;\
		5360	video.controls = true;video.autoplay = false;\
		5361	var src = document.createElement(\"source\");\
		5362	src.type = \"video/mp4\";\
		5363	src.src = URL;\
		5364	video.appendChild(src);\
		5365	video.load();\
		5366	return;\
8224	bpr	5367	};");
7614	schaersvoo	5368	break;
8224	bpr	5369
7614	schaersvoo	5370	case DRAW_AUDIO:/* not used for userdraw */
		5371	fprintf(js_include_file,"\n<!-- draw audio -->\n\
8105	schaersvoo	5372	var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
7614	schaersvoo	5373	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5374	var audio_div = document.createElement(\"div\");\
		5375	canvas_div.appendChild(audio_div);\
		5376	audio_div.style.position = \"absolute\";\
		5377	audio_div.style.left = x+\"px\";\
		5378	audio_div.style.top = y+\"px\";\
		5379	audio_div.style.width = w+\"px\";\
		5380	audio_div.style.height = h+\"px\";\
		5381	var audio = document.createElement(\"audio\");\
		5382	audio_div.appendChild(audio);\
		5383	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		5384	audio.autobuffer = true;\
		5385	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
		5386	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
		5387	var src1 = document.createElement(\"source\");\
		5388	src1.type = \"audio/ogg\";\
		5389	src1.src = URL1;\
		5390	audio.appendChild(src1);\
		5391	var src2 = document.createElement(\"source\");\
		5392	src2.type = \"audio/mpeg\";\
		5393	src2.src = URL2;\
		5394	audio.appendChild(src2);\
		5395	audio.load();\
		5396	return;\
7653	schaersvoo	5397	};");
7614	schaersvoo	5398	break;
8224	bpr	5399
7614	schaersvoo	5400	case DRAW_HTTP:/* not used for userdraw */
		5401	fprintf(js_include_file,"\n<!-- draw http -->\n\
8105	schaersvoo	5402	var draw_http = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	5403	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5404	var http_div = document.createElement(\"div\");\
		5405	var iframe = document.createElement(\"iframe\");\
		5406	canvas_div.appendChild(http_div);\
		5407	http_div.appendChild(iframe);\
		5408	iframe.src = URL;\
		5409	iframe.setAttribute(\"width\",w);\
		5410	iframe.setAttribute(\"height\",h);\
		5411	return;\
7653	schaersvoo	5412	};");
7614	schaersvoo	5413	break;
8224	bpr	5414
7614	schaersvoo	5415	case DRAW_XML:
		5416	fprintf(js_include_file,"\n<!-- draw xml -->\n\
8105	schaersvoo	5417	var draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
7614	schaersvoo	5418	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5419	var xml_div = document.createElement(\"div\");\
		5420	canvas_div.appendChild(xml_div);\
		5421	xml_div.innerHTML = mathml;\
		5422	if(onclick != 0){\
		5423	xml_div.onclick = function(){\
		5424	reply[0] = onclick;\
		5425	alert(\"send \"+onclick+\" ?\");\
		5426	};\
		5427	};\
		5428	xml_div.style.position = \"absolute\";\
		5429	xml_div.style.left = x+\"px\";\
		5430	xml_div.style.top = y+\"px\";\
		5431	xml_div.style.width = w+\"px\";\
		5432	xml_div.style.height = h+\"px\";\
		5433	return;\
7653	schaersvoo	5434	};"
7614	schaersvoo	5435	);
		5436	break;
7654	schaersvoo	5437	case DRAW_SGRAPH:
8224	bpr	5438	/*
7654	schaersvoo	5439	xstart = given
		5440	ystart = given
		5441	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		5442	*/
		5443	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
8105	schaersvoo	5444	var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
7658	schaersvoo	5445	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);};\
		5446	var ctx = obj.getContext(\"2d\");\
		5447	ctx.font = fontfamily;\
		5448	var minor_opacity = 0.8*opacity;\
		5449	ctx.clearRect(0,0,xsize,ysize);\
7976	schaersvoo	5450	var zero_x = 0.1*xsize;\
		5451	var zero_y = 0.9*ysize;\
8129	schaersvoo	5452	var snor_x;var snor_y;\
7654	schaersvoo	5453	if( xstart != xmin){\
7658	schaersvoo	5454	snor_x = 0.1*xsize;\
		5455	}\
		5456	else\
		5457	{\
		5458	snor_x = 0;\
		5459	xstart = xmin;\
		5460	};\
		5461	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5462	ctx.lineWidth = 2;\
		5463	ctx.beginPath();\
		5464	ctx.moveTo(xsize,zero_y);\
		5465	ctx.lineTo(zero_x,zero_y);\
		5466	ctx.lineTo(zero_x,0);\
		5467	ctx.stroke();\
		5468	ctx.closePath();\
		5469	ctx.beginPath();\
		5470	ctx.moveTo(zero_x,zero_y);\
		5471	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		5472	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		5473	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		5474	ctx.lineTo(zero_x + snor_x,zero_y);\
		5475	ctx.stroke();\
		5476	ctx.closePath();\
		5477	ctx.beginPath();\
		5478	var num = xstart;\
7660	schaersvoo	5479	var flipflop = 1;\
7658	schaersvoo	5480	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
7976	schaersvoo	5481	var txtsize;var txt_marge=step_x - 5;\
7658	schaersvoo	5482	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7976	schaersvoo	5483	txtsize = ctx.measureText(num).width;\
		5484	if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
		5485	if( flipflop == 1){\
		5486	ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
		5487	}\
		5488	else\
		5489	{\
		5490	ctx.fillText(num,x - 0.5txtsize,zero_y+2font_size);\
		5491	}\
		5492	num = num + xmajor;\
7658	schaersvoo	5493	};\
		5494	ctx.stroke();\
		5495	ctx.closePath();\
		5496	ctx.lineWidth = 1;\
		5497	ctx.beginPath();\
		5498	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		5499	ctx.moveTo(x,zero_y);\
		5500	ctx.lineTo(x,0);\
		5501	};\
		5502	ctx.stroke();\
		5503	ctx.closePath();\
		5504	if( xminor > 1){\
		5505	ctx.lineWidth = 0.5;\
		5506	ctx.beginPath();\
		5507	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		5508	var minor_step_x = step_x / xminor;\
		5509	var nx;\
		5510	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		5511	num = 1;\
		5512	for(var p = 1 ; p < xminor ; p++){\
		5513	nx = x + num*minor_step_x;\
		5514	ctx.moveTo(nx,zero_y);\
		5515	ctx.lineTo(nx,0);\
		5516	num++;\
		5517	};\
		5518	};\
		5519	ctx.stroke();\
		5520	ctx.closePath();\
		5521	ctx.beginPath();\
		5522	ctx.lineWidth = 2;\
		5523	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5524	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		5525	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		5526	};\
		5527	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		5528	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		5529	};\
		5530	ctx.stroke();\
		5531	ctx.closePath();\
		5532	ctx.lineWidth = 0.5;\
		5533	};\
		5534	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		5535	if( ystart != ymin){\
		5536	snor_y = 0.1*ysize;\
		5537	}\
		5538	else\
		5539	{\
		5540	snor_y = 0;\
		5541	ystart = ymin;\
		5542	};\
		5543	ctx.lineWidth = 2;\
		5544	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5545	ctx.beginPath();\
		5546	ctx.moveTo(zero_x,zero_y);\
		5547	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		5548	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		5549	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		5550	ctx.lineTo(zero_x,zero_y - snor_y);\
		5551	ctx.stroke();\
		5552	ctx.closePath();\
		5553	ctx.beginPath();\
		5554	ctx.lineWidth = 1;\
		5555	num = ystart;\
		5556	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		5557	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		5558	ctx.moveTo(zero_x,y);\
		5559	ctx.lineTo(xsize,y);\
		5560	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		5561	num = num + ymajor;\
		5562	};\
		5563	ctx.stroke();\
		5564	ctx.closePath();\
		5565	if( yminor > 1){\
		5566	ctx.lineWidth = 0.5;\
		5567	ctx.beginPath();\
		5568	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		5569	var minor_step_y = step_y / yminor;\
		5570	var ny;\
		5571	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		5572	num = 1;\
		5573	for(var p = 1 ;p < yminor;p++){\
		5574	ny = y + num*minor_step_y;\
		5575	ctx.moveTo(zero_x,ny);\
		5576	ctx.lineTo(xsize,ny);\
		5577	num++;\
		5578	};\
		5579	};\
		5580	ctx.stroke();\
		5581	ctx.closePath();\
		5582	ctx.lineWidth = 2;\
		5583	ctx.beginPath();\
		5584	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5585	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		5586	ctx.moveTo(zero_x,y);\
		5587	ctx.lineTo(zero_x+12,y);\
		5588	};\
		5589	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		5590	ctx.moveTo(zero_x,y);\
		5591	ctx.lineTo(zero_x+6,y);\
		5592	};\
		5593	ctx.stroke();\
		5594	ctx.closePath();\
		5595	};\
		5596	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
7654	schaersvoo	5597	if( typeof legend%d !== 'undefined' ){\
		5598	ctx.globalAlpha = 1.0;\
		5599	var y_offset = 2*font_size;\
		5600	var txt;var txt_size;\
		5601	var x_offset = xsize - 2*font_size;\
		5602	var l_length = legend%d.length;var barcolor = new Array();\
		5603	if( typeof legendcolors%d !== 'undefined' ){\
		5604	for(var p = 0 ; p < l_length ; p++){\
		5605	barcolor[p] = legendcolors%d[p];\
		5606	};\
		5607	}else{\
		5608	if( barcolor.length == 0 ){\
		5609	for(var p = 0 ; p < l_length ; p++){\
		5610	barcolor[p] = stroke_color;\
		5611	};\
		5612	};\
		5613	};\
		5614	for(var p = 0; p < l_length; p++){\
		5615	ctx.fillStyle = barcolor[p];\
		5616	txt = legend%d[p];\
		5617	txt_size = ctx.measureText(txt).width;\
		5618	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		5619	y_offset = parseInt(y_offset + 1.5*font_size);\
		5620	};\
		5621	};\
7660	schaersvoo	5622	if( typeof xaxislabel !== 'undefined' ){\
7658	schaersvoo	5623	ctx.fillStyle = \'#000000\';\
		5624	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		5625	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		5626	};\
7660	schaersvoo	5627	if( typeof yaxislabel !== 'undefined'){\
7658	schaersvoo	5628	ctx.save();\
		5629	ctx.fillStyle = \'#000000\';\
		5630	var txt_size = ctx.measureText(yaxislabel).width;\
		5631	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		5632	ctx.rotate(-0.5*Math.PI);\
		5633	ctx.fillText(yaxislabel,0,0);\
7874	schaersvoo	5634	ctx.restore();\
7658	schaersvoo	5635	};\
7654	schaersvoo	5636	};\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);
		5637	break;
7614	schaersvoo	5638
		5639	case DRAW_GRID:/* not used for userdraw */
		5640	fprintf(js_include_file,"\n<!-- draw grid -->\n\
8105	schaersvoo	5641	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	5642	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);};\
		5643	var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
7614	schaersvoo	5644	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5645	ctx.save();\
8071	schaersvoo	5646	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	5647	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		5648	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5649	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		5650	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		5651	ctx.font = font_family;\
7988	schaersvoo	5652	var barcolor = new Array();\
7614	schaersvoo	5653	var xstep = xsize*xmajor/(xmax - xmin);\
		5654	var ystep = ysize*ymajor/(ymax - ymin);\
		5655	var x2step = xstep / xminor;\
		5656	var y2step = ystep / yminor;\
7996	schaersvoo	5657	var zero_x = x2px(0);;var zero_y = y2px(0);var f_x;var f_y;\
		5658	if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;}\
		5659	if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;}\
7614	schaersvoo	5660	ctx.beginPath();\
		5661	ctx.lineWidth = line_width;\
		5662	ctx.strokeStyle = stroke_color;\
		5663	for(var p = zero_x ; p < xsize; p = p + xstep){\
		5664	ctx.moveTo(p,0);\
		5665	ctx.lineTo(p,ysize);\
		5666	};\
		5667	for(var p = zero_x ; p > 0; p = p - xstep){\
		5668	ctx.moveTo(p,0);\
		5669	ctx.lineTo(p,ysize);\
		5670	};\
		5671	for(var p = zero_y ; p < ysize; p = p + ystep){\
		5672	ctx.moveTo(0,p);\
		5673	ctx.lineTo(xsize,p);\
		5674	};\
		5675	for(var p = zero_y ; p > 0; p = p - ystep){\
		5676	ctx.moveTo(0,p);\
		5677	ctx.lineTo(xsize,p);\
		5678	};\
		5679	if( typeof xaxislabel !== 'undefined' ){\
		5680	ctx.save();\
		5681	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		5682	var corr = ctx.measureText(xaxislabel).width;\
		5683	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		5684	ctx.restore();\
		5685	};\
		5686	if( typeof yaxislabel !== 'undefined' ){\
		5687	ctx.save();\
		5688	ctx.font = \"italic \"+font_size+\"px Ariel\";\
7988	schaersvoo	5689	var corr = ctx.measureText(yaxislabel).width;\
7614	schaersvoo	5690	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		5691	ctx.rotate(-0.5*Math.PI);\
		5692	ctx.fillText(yaxislabel,0,0);\
		5693	ctx.restore();\
		5694	};\
		5695	ctx.stroke();\
		5696	ctx.closePath();\
		5697	if( use_axis == 1 ){\
7988	schaersvoo	5698	ctx.save();\
7614	schaersvoo	5699	ctx.beginPath();\
		5700	ctx.strokeStyle = stroke_color;\
		5701	ctx.lineWidth = 0.6*line_width;\
		5702	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5703	ctx.moveTo(p,0);\
		5704	ctx.lineTo(p,ysize);\
		5705	};\
		5706	for(var p = zero_x ; p > 0; p = p - x2step){\
		5707	ctx.moveTo(p,0);\
		5708	ctx.lineTo(p,ysize);\
		5709	};\
		5710	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5711	ctx.moveTo(0,p);\
		5712	ctx.lineTo(xsize,p);\
		5713	};\
		5714	for(var p = zero_y ; p > 0; p = p - y2step){\
		5715	ctx.moveTo(0,p);\
		5716	ctx.lineTo(xsize,p);\
		5717	};\
		5718	ctx.stroke();\
		5719	ctx.closePath();\
		5720	ctx.beginPath();\
		5721	ctx.lineWidth = 2*line_width;\
		5722	ctx.strokeStyle = axis_color;\
		5723	ctx.moveTo(0,zero_y);\
		5724	ctx.lineTo(xsize,zero_y);\
		5725	ctx.moveTo(zero_x,0);\
		5726	ctx.lineTo(zero_x,ysize);\
		5727	ctx.stroke();\
		5728	ctx.closePath();\
		5729	ctx.lineWidth = line_width+0.5;\
		5730	ctx.beginPath();\
		5731	for(var p = zero_x ; p < xsize; p = p + xstep){\
		5732	ctx.moveTo(p,zero_y-tics_length);\
		5733	ctx.lineTo(p,zero_y+tics_length);\
		5734	};\
		5735	for(var p = zero_x ; p > 0; p = p - xstep){\
		5736	ctx.moveTo(p,zero_y-tics_length);\
		5737	ctx.lineTo(p,zero_y+tics_length);\
		5738	};\
		5739	for(var p = zero_y ; p < ysize; p = p + ystep){\
		5740	ctx.moveTo(zero_x-tics_length,p);\
		5741	ctx.lineTo(zero_x+tics_length,p);\
		5742	};\
		5743	for(var p = zero_y ; p > 0; p = p - ystep){\
		5744	ctx.moveTo(zero_x-tics_length,p);\
		5745	ctx.lineTo(zero_x+tics_length,p);\
		5746	};\
		5747	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5748	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5749	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5750	};\
		5751	for(var p = zero_x ; p > 0; p = p - x2step){\
		5752	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5753	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5754	};\
		5755	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5756	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5757	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5758	};\
		5759	for(var p = zero_y ; p > 0; p = p - y2step){\
		5760	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5761	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5762	};\
		5763	ctx.stroke();\
		5764	ctx.closePath();\
7988	schaersvoo	5765	ctx.restore();\
		5766	};\
		5767	if( use_axis_numbering == 1 ){\
		5768	ctx.save();\
		5769	ctx.fillColor = axis_color;\
8110	schaersvoo	5770	ctx.strokeStyle = axis_color;\
		5771	ctx.lineWidth = 2*line_width;\
7988	schaersvoo	5772	ctx.font = font_family;\
		5773	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		5774	if( x_strings != null ){\
		5775	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	5776	ctx.beginPath();\
7988	schaersvoo	5777	for(var p = 0 ; p < len ; p = p+2){\
		5778	var x_nums = x2px(eval(x_strings[p]));\
		5779	var x_text = x_strings[p+1];\
		5780	corr = ctx.measureText(x_text).width;\
		5781	skip = 1.2*corr/xstep;\
		5782	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		5783	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		5784	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
8110	schaersvoo	5785	ctx.moveTo(x_nums,zero_y - tics_length);\
		5786	ctx.lineTo(x_nums,zero_y + tics_length);\
7988	schaersvoo	5787	};\
8110	schaersvoo	5788	ctx.closePath();\
7988	schaersvoo	5789	}\
		5790	else\
		5791	{\
		5792	skip = 1;cnt = px2x(zero_x);\
		5793	prec = Math.log(precision)/(Math.log(10));\
		5794	var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
		5795	for( var p = zero_x ; p < xsize ; p = p+xstep){\
		5796	if(skip == 0 ){\
7990	schaersvoo	5797	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5798	corr = ctx.measureText(disp_cnt).width;\
		5799	skip = parseInt(1.2*corr/xstep);\
		5800	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
7614	schaersvoo	5801	}\
7988	schaersvoo	5802	else\
		5803	{\
		5804	skip--;\
7614	schaersvoo	5805	};\
7988	schaersvoo	5806	cnt = cnt + xmajor;\
7614	schaersvoo	5807	};\
7988	schaersvoo	5808	cnt = px2x(zero_x);skip = 1;\
		5809	for( var p = zero_x ; p > 0 ; p = p-xstep){\
		5810	if(skip == 0 ){\
7990	schaersvoo	5811	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5812	corr = ctx.measureText(disp_cnt).width;\
		5813	skip = parseInt(1.2*corr/xstep);\
		5814	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
		5815	}\
		5816	else\
		5817	{\
		5818	skip--;\
7614	schaersvoo	5819	};\
7988	schaersvoo	5820	cnt = cnt - xmajor;\
7614	schaersvoo	5821	};\
		5822	};\
7988	schaersvoo	5823	if( y_strings != null ){\
		5824	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	5825	ctx.beginPath();\
7988	schaersvoo	5826	for(var p = 0 ; p < len ; p = p+2){\
		5827	var y_nums = y2px(eval(y_strings[p]));\
		5828	var y_text = y_strings[p+1];\
		5829	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		5830	if( corr > zero_x){corr = parseInt(zero_x+2); }\
8110	schaersvoo	5831	ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
		5832	ctx.moveTo(zero_x - tics_length,y_nums);\
		5833	ctx.lineTo(zero_x + tics_length,y_nums);\
7614	schaersvoo	5834	};\
8110	schaersvoo	5835	ctx.closePath();\
7988	schaersvoo	5836	}\
		5837	else\
		5838	{\
7991	schaersvoo	5839	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	5840	cnt = px2y(zero_y);skip = 1;\
		5841	for( var p = zero_y ; p < ysize ; p = p+ystep){\
		5842	if(skip == 0 ){\
		5843	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	5844	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5845	if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		5846	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		5847	}\
		5848	else\
		5849	{\
		5850	skip--;\
		5851	};\
		5852	cnt = cnt - ymajor;\
7614	schaersvoo	5853	};\
7988	schaersvoo	5854	corr = 0;cnt = px2y(zero_y);skip = 1;\
7991	schaersvoo	5855	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	5856	for( var p = zero_y ; p > 0 ; p = p-ystep){\
		5857	if(skip == 0 ){\
		5858	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	5859	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5860	if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		5861	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		5862	}\
		5863	else\
		5864	{\
		5865	skip--;\
		5866	};\
		5867	cnt = cnt + ymajor;\
7614	schaersvoo	5868	};\
		5869	};\
7988	schaersvoo	5870	ctx.stroke();\
7614	schaersvoo	5871	ctx.restore();\
		5872	};\
7956	schaersvoo	5873	if( typeof legend0 !== 'undefined' ){\
7988	schaersvoo	5874	ctx.save();\
7614	schaersvoo	5875	ctx.globalAlpha = 1.0;\
		5876	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		5877	var y_offset = 2*font_size;\
		5878	var txt;var txt_size;\
		5879	var x_offset = xsize - 2*font_size;\
7956	schaersvoo	5880	var l_length = legend0.length;\
		5881	if( typeof legendcolors0 !== 'undefined' ){\
7614	schaersvoo	5882	for(var p = 0 ; p < l_length ; p++){\
7956	schaersvoo	5883	barcolor[p] = legendcolors0[p];\
7614	schaersvoo	5884	};\
7988	schaersvoo	5885	}\
		5886	else\
		5887	{\
7614	schaersvoo	5888	if( barcolor.length == 0 ){\
		5889	for(var p = 0 ; p < l_length ; p++){\
		5890	barcolor[p] = stroke_color;\
		5891	};\
		5892	};\
		5893	};\
		5894	for(var p = 0; p < l_length; p++){\
		5895	ctx.fillStyle = barcolor[p];\
7956	schaersvoo	5896	txt = legend0[p];\
7614	schaersvoo	5897	txt_size = ctx.measureText(txt).width;\
7956	schaersvoo	5898	ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
7614	schaersvoo	5899	y_offset = parseInt(y_offset + 1.5*font_size);\
		5900	};\
7988	schaersvoo	5901	ctx.restore();\
7614	schaersvoo	5902	};\
7991	schaersvoo	5903	if( typeof barchart_0 !== 'undefined' ){\
		5904	ctx.save();\
		5905	var num_barcharts = 0;\
		5906	var bar_name = eval('barchart_0');\
		5907	while( typeof bar_name !== 'undefined' ){\
		5908	try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
		5909	};\
		5910	var bar_width = parseInt(0.8*xstep/(num_barcharts));\
		5911	for(var i=0 ; i< num_barcharts ; i++){\
		5912	bar_name = eval('barchart_'+i);\
		5913	var bar_x = new Array();\
		5914	var bar_y = new Array();\
		5915	var lb = bar_name.length;\
		5916	var idx = 0;\
		5917	var dx = parseInt(0.5ibar_width);\
		5918	for( var p = 0 ; p < lb ; p = p + 3 ){\
		5919	bar_x[idx] = x2px(bar_name[p]);\
		5920	bar_y[idx] = y2px(bar_name[p+1]);\
		5921	barcolor[idx] = bar_name[p+2];\
		5922	idx++;\
		5923	};\
		5924	ctx.globalAlpha = fill_opacity;\
		5925	ctx.beginPath();\
		5926	for( var p = 0; p < idx ; p++ ){\
		5927	ctx.strokeStyle = barcolor[p];\
		5928	ctx.fillStyle = barcolor[p];\
		5929	ctx.rect(bar_x[p]-0.4*xstep+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
		5930	};\
		5931	ctx.fill();\
		5932	ctx.stroke();\
		5933	ctx.closePath();\
		5934	};\
		5935	ctx.restore();\
		5936	};\
7996	schaersvoo	5937	if( typeof linegraph_0 !== 'undefined' ){\
		5938	ctx.save();\
		5939	ctx.globalAlpha = 1.0;\
		5940	var i = 0;\
		5941	var line_name = eval('linegraph_'+i);\
		5942	while ( typeof line_name !== 'undefined' ){\
		5943	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		5944	ctx.lineWidth = parseInt(line_name[1]);\
		5945	if(line_name[2] == \"1\"){\
		5946	var d1 = parseInt(line_name[3]);\
		5947	var d2 = parseInt(line_name[4]);\
		5948	if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
		5949	}\
		5950	else\
		5951	{\
		5952	if(ctx.setLineDash){ctx.setLineDash = null;}\
		5953	if(ctx.mozDash){ctx.mozDash = null;}\
		5954	};\
		5955	var data_x = new Array();\
		5956	var data_y = new Array();\
		5957	var lb = line_name.length;\
		5958	var idx = 0;\
		5959	for( var p = 5 ; p < lb ; p = p + 2 ){\
		5960	data_x[idx] = x2px(line_name[p]);\
		5961	data_y[idx] = y2px(line_name[p+1]);\
		5962	idx++;\
		5963	};\
		5964	for( var p = 0; p < idx ; p++){\
		5965	ctx.beginPath();\
		5966	ctx.moveTo(data_x[p],data_y[p]);\
		5967	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		5968	ctx.stroke();\
		5969	ctx.closePath();\
		5970	};\
		5971	i++;\
		5972	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		5973	};\
		5974	ctx.restore();\
		5975	};\
7614	schaersvoo	5976	return;\
7989	schaersvoo	5977	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5978	break;
8224	bpr	5979
7614	schaersvoo	5980	case DRAW_PIECHART:
7987	schaersvoo	5981	fprintf(js_include_file,"\n<!-- draw piecharts -->\n\
7956	schaersvoo	5982	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family){\
7614	schaersvoo	5983	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5984	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5985	}\
		5986	else\
		5987	{\
		5988	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5989	};\
		5990	var ld = data_color_list.length;\
		5991	var sum = 0;\
		5992	var idx = 0;\
7956	schaersvoo	5993	var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
7614	schaersvoo	5994	var colors = new Array();\
		5995	var data = new Array();\
		5996	for(var p = 0;p < ld; p = p + 2){\
		5997	data[idx] = parseFloat(data_color_list[p]);\
		5998	sum = sum + data[idx];\
		5999	colors[idx] = data_color_list[p+1];\
		6000	idx++;\
		6001	};\
		6002	var ctx = obj.getContext(\"2d\");\
		6003	ctx.save();\
		6004	var angle;\
		6005	var angle_end = 0;\
		6006	var offset = Math.PI / 2;\
		6007	ctx.globalAlpha = fill_opacity;\
		6008	for(var p=0; p < idx; p++){\
		6009	ctx.beginPath();\
		6010	ctx.fillStyle = colors[p];\
		6011	ctx.moveTo(x_center,y_center);\
		6012	angle = Math.PI * (2 * data[p] / sum);\
		6013	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		6014	ctx.lineTo(x_center, y_center);\
		6015	ctx.fill();\
		6016	ctx.closePath();\
		6017	angle_end = angle_end + angle;\
		6018	};\
7956	schaersvoo	6019	if(typeof legend0 !== 'undefined'){\
		6020	var legenda = eval(\"legend\"+legend_cnt);\
7614	schaersvoo	6021	ctx.globalAlpha = 1.0;\
7956	schaersvoo	6022	ctx.font = font_family;\
7614	schaersvoo	6023	var y_offset = font_size; \
		6024	var x_offset = 0;\
		6025	var txt;var txt_size;\
		6026	for(var p = 0; p < idx; p++){\
		6027	ctx.fillStyle = colors[p];\
7956	schaersvoo	6028	txt = legenda[p];\
7614	schaersvoo	6029	txt_size = ctx.measureText(txt).width;\
		6030	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
7956	schaersvoo	6031	ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
7614	schaersvoo	6032	y_offset = parseInt(y_offset + 1.5*font_size);\
		6033	};\
		6034	};\
		6035	ctx.restore();\
7956	schaersvoo	6036	};",canvas_root_id,canvas_root_id,canvas_root_id);
8224	bpr	6037
7614	schaersvoo	6038	break;
		6039	case DRAW_ARCS:
		6040	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
8105	schaersvoo	6041	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	6042	ctx.save();\
		6043	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
8071	schaersvoo	6044	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	6045	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		6046	if(end < start){var tmp = end;end = start;start=tmp;};\
8071	schaersvoo	6047	start = 360 - start;\
		6048	end = 360 - end;\
7614	schaersvoo	6049	ctx.lineWidth = line_width;\
		6050	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
8071	schaersvoo	6051	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		6052	ctx.beginPath();\
		6053	ctx.moveTo(xc,yc);\
		6054	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		6055	ctx.lineTo(xc,yc);\
		6056	ctx.closePath();\
7614	schaersvoo	6057	if( use_filled == 1 ){\
		6058	ctx.fill();\
8071	schaersvoo	6059	};\
		6060	ctx.stroke();\
7614	schaersvoo	6061	ctx.restore();\
8071	schaersvoo	6062	};");
8224	bpr	6063
7614	schaersvoo	6064	break;
7983	schaersvoo	6065	case DRAW_CENTERSTRING:
		6066	fprintf(js_include_file,"\n<!-- draw centerstring -->\n\
8105	schaersvoo	6067	var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
7983	schaersvoo	6068	var obj;\
		6069	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6070	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6071	}\
		6072	else\
		6073	{\
		6074	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6075	};\
		6076	var ctx = obj.getContext(\"2d\");\
		6077	ctx.save();\
		6078	ctx.font = font_family;\
		6079	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6080	var stringwidth = ctx.measureText(text).width;\
		6081	var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
		6082	ctx.fillText(text,x,y2px(y));\
		6083	return;\
		6084	};",canvas_root_id,canvas_root_id,canvas_root_id);
		6085	break;
7614	schaersvoo	6086	case DRAW_TEXTS:
		6087	fprintf(js_include_file,"\n<!-- draw text -->\n\
8105	schaersvoo	6088	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){\
7614	schaersvoo	6089	var obj;\
		6090	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6091	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6092	}\
		6093	else\
		6094	{\
		6095	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6096	};\
		6097	var ctx = obj.getContext(\"2d\");\
		6098	if(angle2 == 0 && angle != 0){\
		6099	ctx.save();\
8071	schaersvoo	6100	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6101	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6102	};\
		6103	if( font_family.indexOf('px') != null ){\
		6104	ctx.font = font_family;\
		6105	}\
		6106	else\
		6107	{\
7956	schaersvoo	6108	ctx.font = font_family;\
7614	schaersvoo	6109	};\
		6110	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6111	if(angle2 != 0){\
		6112	ctx.save();\
		6113	ctx.translate(x,y);\
		6114	ctx.rotate((360-angle2)*(Math.PI / 180));\
		6115	ctx.fillText(text,0,0);\
		6116	ctx.restore();\
		6117	}else{ctx.fillText(text,x,y);};\
		6118	ctx.restore();\
		6119	return;\
7653	schaersvoo	6120	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6121	break;
		6122	case DRAW_CURVE:
		6123	fprintf(js_include_file,"\n<!-- draw curve -->\n\
8105	schaersvoo	6124	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	6125	var obj;\
		6126	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6127	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6128	}\
		6129	else\
		6130	{\
		6131	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6132	};\
		6133	var ctx = obj.getContext(\"2d\");\
		6134	ctx.save();\
8071	schaersvoo	6135	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6136	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6137	ctx.beginPath();ctx.lineWidth = line_width;\
		6138	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6139	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6140	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		6141	for(var p = 1 ; p < x_points.length ; p++){\
		6142	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		6143	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		6144	}\
		6145	else\
		6146	{\
		6147	ctx.stroke();\
		6148	ctx.beginPath();\
		6149	p++;\
		6150	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		6151	};\
		6152	};\
		6153	ctx.stroke();\
		6154	ctx.restore();\
7653	schaersvoo	6155	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6156	break;
8224	bpr	6157
7614	schaersvoo	6158	case DRAW_INPUTS:
		6159	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
8105	schaersvoo	6160	var draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
7614	schaersvoo	6161	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		6162	var input = document.createElement(\"input\");\
		6163	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		6164	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		6165	input.setAttribute(\"size\",size);\
		6166	input.setAttribute(\"value\",value);\
7877	schaersvoo	6167	if( readonly == 0 \|\| wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
7653	schaersvoo	6168	canvas_div.appendChild(input);};");
7614	schaersvoo	6169	break;
8224	bpr	6170
7614	schaersvoo	6171	case DRAW_TEXTAREAS:
		6172	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
8105	schaersvoo	6173	var draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
7614	schaersvoo	6174	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		6175	var textarea = document.createElement(\"textarea\");\
		6176	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		6177	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		6178	textarea.setAttribute(\"cols\",cols);\
		6179	textarea.setAttribute(\"rows\",rows);\
7877	schaersvoo	6180	textarea.value = value;\
		6181	if( readonly == 0 \|\| wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
7653	schaersvoo	6182	canvas_div.appendChild(textarea);};");
7614	schaersvoo	6183	break;
8224	bpr	6184
7614	schaersvoo	6185	case DRAW_PIXELS:
		6186	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
8105	schaersvoo	6187	var draw_setpixel = function(x,y,color,opacity,pixelsize){\
7614	schaersvoo	6188	var canvas = create_canvas%d(10,xsize,ysize);\
		6189	var d = 0.5*pixelsize;\
		6190	var ctx = canvas.getContext(\"2d\");\
		6191	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		6192	ctx.clearRect(0,0,xsize,ysize);\
		6193	for(var p=0; p<x.length;p++){\
		6194	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		6195	};\
		6196	ctx.fill();ctx.stroke();\
		6197	};",canvas_root_id);
		6198	break;
		6199
		6200	case DRAW_CLOCK:
		6201	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		6202	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		6203	var clock_ctx = clock_canvas.getContext(\"2d\");\
		6204	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
8130	schaersvoo	6205	clock_ctx.clearRect(xc - radius,yc - radius,2radius,2radius);\
7614	schaersvoo	6206	clock_ctx.save();\
7997	schaersvoo	6207	clock_ctx.globalAlpha = clock_bg_opacity;\
7614	schaersvoo	6208	this.type = type \|\| 0;\
		6209	this.interaction = interaction \|\| 0;\
7862	schaersvoo	6210	this.H = H;\
		6211	this.M = M;\
		6212	this.S = S;\
8000	schaersvoo	6213	if(this.S == -1){this.S = 59;this.M = this.M - 1;};\
		6214	if(this.M == -1){this.M = 59;this.H = this.H - 1;};\
		6215	if(this.H == -1){this.H = 11;};\
7614	schaersvoo	6216	this.xc = xc \|\| xsize/2;\
		6217	this.yc = yc \|\| ysize/2;\
		6218	this.radius = radius \|\| xsize/4;\
		6219	var font_size = parseInt(0.2*this.radius);\
		6220	this.H_color = h_color \|\| \"blue\";\
		6221	this.M_color = m_color \|\| \"blue\";\
		6222	this.S_color = s_color \|\| \"blue\";\
		6223	this.fg_color = fg_color \|\| \"red\";\
		6224	this.bg_color = bg_color \|\| \"white\";\
		6225	clock_ctx.translate(this.xc,this.yc);\
		6226	clock_ctx.beginPath();\
		6227	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		6228	clock_ctx.fillStyle = this.bg_color;\
		6229	clock_ctx.fill();\
		6230	clock_ctx.closePath();\
		6231	clock_ctx.beginPath();\
		6232	clock_ctx.font = font_size+\"px Arial\";\
		6233	clock_ctx.fillStyle = this.fg_color;\
		6234	clock_ctx.textAlign = \"center\";\
		6235	clock_ctx.textBaseline = 'middle';\
		6236	var angle;var x1,y1,x2,y2;\
		6237	var angle_cos;var angle_sin;\
7997	schaersvoo	6238	clock_ctx.globalAlpha = clock_fg_opacity;\
7614	schaersvoo	6239	switch(type){\
		6240	case 0:clock_ctx.beginPath();\
		6241	for(var p = 1; p <= 12 ; p++){\
		6242	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		6243	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		6244	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6245	clock_ctx.moveTo(x1,y1);\
		6246	clock_ctx.lineTo(x2,y2);\
		6247	};\
		6248	for(var p = 1; p <= 60 ; p++){\
		6249	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		6250	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		6251	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6252	clock_ctx.moveTo(x1,y1);\
		6253	clock_ctx.lineTo(x2,y2);\
		6254	};\
		6255	clock_ctx.closePath();\
		6256	clock_ctx.stroke();\
		6257	break;\
		6258	case 1:\
		6259	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	6260	case 2:\
		6261	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	6262	clock_ctx.beginPath();\
		6263	for(var p = 1; p <= 12 ; p++){\
		6264	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		6265	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		6266	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6267	clock_ctx.moveTo(x1,y1);\
		6268	clock_ctx.lineTo(x2,y2);\
		6269	};\
		6270	for(var p = 1; p <= 60 ; p++){\
		6271	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		6272	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		6273	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6274	clock_ctx.moveTo(x1,y1);\
		6275	clock_ctx.lineTo(x2,y2);\
		6276	};\
		6277	clock_ctx.closePath();\
		6278	clock_ctx.stroke();\
		6279	break;\
		6280	};\
		6281	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		6282	clock_ctx.rotate(angle);\
		6283	clock_ctx.beginPath();\
		6284	clock_ctx.moveTo(-3, -2);\
		6285	clock_ctx.lineTo(-3, 2);\
		6286	clock_ctx.lineTo(this.radius * 0.7, 1);\
		6287	clock_ctx.lineTo(this.radius * 0.7, -1);\
		6288	clock_ctx.fillStyle = this.H_color;\
		6289	clock_ctx.fill();\
		6290	clock_ctx.rotate(-angle);\
		6291	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		6292	clock_ctx.rotate(angle);\
		6293	clock_ctx.beginPath();\
		6294	clock_ctx.moveTo(-3, -2);\
		6295	clock_ctx.lineTo(-3, 2);\
		6296	clock_ctx.lineTo(this.radius * 0.8, 1);\
		6297	clock_ctx.lineTo(this.radius * 0.8, -1);\
		6298	clock_ctx.fillStyle = this.M_color;\
		6299	clock_ctx.fill();\
		6300	clock_ctx.rotate(-angle);\
		6301	angle = (this.S - 15) * 2 * Math.PI / 60;\
		6302	clock_ctx.rotate(angle);\
		6303	clock_ctx.beginPath();\
		6304	clock_ctx.moveTo(0,0);\
		6305	clock_ctx.lineTo(this.radius * 0.95, 0);\
		6306	clock_ctx.lineTo(this.radius * 0.9, -1);\
		6307	clock_ctx.strokeStyle = this.S_color;\
		6308	clock_ctx.stroke();\
		6309	clock_ctx.restore();\
7653	schaersvoo	6310	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	6311	break;
		6312
		6313	case DRAW_LATTICE:
		6314	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
8105	schaersvoo	6315	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	6316	var obj;\
		6317	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6318	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6319	}\
		6320	else\
		6321	{\
		6322	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6323	};\
		6324	var ctx = obj.getContext(\"2d\");\
		6325	ctx.save();\
8071	schaersvoo	6326	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6327	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6328	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6329	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6330	var radius = line_width;\
		6331	var x = 0;\
		6332	var y = 0;\
		6333	var x_step_px = xsize/(xmax-xmin);\
		6334	var y_step_px = ysize/(ymax-ymin);\
		6335	var xv1 = dx1*x_step_px;\
		6336	var yv1 = dy1*y_step_px;\
		6337	var xv2 = dx2*x_step_px;\
		6338	var yv2 = dy2*y_step_px;\
		6339	for(var p = 0; p < n1 ;p++){\
		6340	x = p*xv1 + x0;\
		6341	y = p*yv1 + y0;\
		6342	for(var c = 0; c < n2 ; c++){\
		6343	ctx.beginPath();\
		6344	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		6345	ctx.fill();\
		6346	ctx.stroke();\
		6347	ctx.closePath();\
		6348	};\
		6349	};\
		6350	ctx.restore();\
		6351	return;\
7653	schaersvoo	6352	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6353	break;
7735	schaersvoo	6354	case DRAW_XYLOGSCALE:
		6355	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
8105	schaersvoo	6356	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	6357	var obj;\
		6358	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6359	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6360	}\
		6361	else\
		6362	{\
		6363	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6364	};\
		6365	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	6366	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6367	ctx.save();\
7739	schaersvoo	6368	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
7956	schaersvoo	6369	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		6370	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		6371	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		6372	var y_max = Math.log(ymax)/Math.log(ylogbase);\
7739	schaersvoo	6373	if(use_axis_numbering == 1){\
7956	schaersvoo	6374	ctx.font = font_family;\
		6375	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
		6376	ymarge = parseInt(1.5*font_size);\
		6377	ctx.save();\
		6378	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6379	ctx.rect(0,0,xmarge,ysize);\
		6380	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6381	ctx.fill();\
		6382	ctx.restore();\
		6383	}else{xmarge = 0;ymarge = 0;};\
7735	schaersvoo	6384	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6385	ctx.save();\
		6386	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6387	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6388	corr = ctx.measureText(xaxislabel).width;\
		6389	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6390	ctx.restore();\
		6391	};\
7735	schaersvoo	6392	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6393	ctx.save();\
		6394	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6395	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6396	corr = ctx.measureText(yaxislabel).width;\
		6397	ctx.translate(xmarge+font_size,corr+font_size);\
		6398	ctx.rotate(-0.5*Math.PI);\
		6399	ctx.fillText(yaxislabel,0,0);\
		6400	ctx.restore();\
		6401	};\
		6402	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6403	ctx.lineWidth = line_width;\
		6404	for(var p = x_min; p <= x_max ; p++){\
		6405	num = Math.pow(xlogbase,p);\
		6406	for(var i = 1 ; i < xlogbase ; i++){\
		6407	x_e = x2px(i*num);\
7735	schaersvoo	6408	if( i == 1 ){\
7956	schaersvoo	6409	ctx.lineWidth = line_width;\
		6410	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7738	schaersvoo	6411	if( use_axis_numbering == 1 && p > x_min){\
7956	schaersvoo	6412	xtxt = xlogbase+'^'+p.toFixed(0);\
		6413	corr = 0.5*(ctx.measureText(xtxt).width);\
		6414	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		6415	};\
7735	schaersvoo	6416	}else{\
7956	schaersvoo	6417	ctx.lineWidth = 0.2*line_width;\
		6418	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6419	};\
7738	schaersvoo	6420	if( x_e >= xmarge ){\
7956	schaersvoo	6421	ctx.beginPath();\
		6422	ctx.moveTo(x_e,0);\
		6423	ctx.lineTo(x_e,ysize - ymarge);\
		6424	ctx.stroke();\
		6425	ctx.closePath();\
7738	schaersvoo	6426	};\
7956	schaersvoo	6427	};\
		6428	};\
		6429	for(var p = y_min; p <= y_max ; p++){\
		6430	num = Math.pow(ylogbase,p);\
		6431	for(var i = 1 ; i < ylogbase ; i++){\
		6432	y_e = y2px(i*num);\
		6433	if( i == 1 ){\
		6434	ctx.lineWidth = line_width;\
7735	schaersvoo	6435	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6436	if( use_axis_numbering == 1 && p > y_min){\
		6437	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
		6438	};\
		6439	}else{\
		6440	ctx.lineWidth = 0.2*line_width;\
		6441	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6442	};\
		6443	ctx.beginPath();\
		6444	ctx.moveTo(xmarge,y_e);\
		6445	ctx.lineTo(xsize,y_e);\
		6446	ctx.stroke();\
		6447	ctx.closePath();\
		6448	};\
		6449	};\
7735	schaersvoo	6450	ctx.restore();\
		6451	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		6452	break;
7614	schaersvoo	6453
7735	schaersvoo	6454	case DRAW_XLOGSCALE:
		6455	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
8105	schaersvoo	6456	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	6457	var obj;\
		6458	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6459	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6460	}\
		6461	else\
		6462	{\
		6463	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6464	};\
		6465	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	6466	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6467	ctx.save();\
		6468	ctx.lineWidth = line_width;\
7739	schaersvoo	6469	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	6470	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		6471	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		6472	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	6473	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		6474	if(use_axis_numbering == 1){\
7956	schaersvoo	6475	ctx.font = font_family;\
		6476	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
		6477	ymarge = parseInt(1.5*font_size);\
		6478	ctx.save();\
		6479	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6480	ctx.rect(0,0,xmarge,ysize);\
		6481	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6482	ctx.fill();\
		6483	ctx.restore();\
		6484	}else{xmarge = 0;ymarge = 0;};\
7739	schaersvoo	6485	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6486	ctx.save();\
		6487	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6488	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6489	corr = ctx.measureText(xaxislabel).width;\
		6490	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6491	ctx.restore();\
		6492	};\
7739	schaersvoo	6493	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6494	ctx.save();\
		6495	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6496	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6497	corr = ctx.measureText(yaxislabel).width;\
		6498	ctx.translate(xmarge+font_size,corr+font_size);\
		6499	ctx.rotate(-0.5*Math.PI);\
		6500	ctx.fillText(yaxislabel,0,0);\
		6501	ctx.restore();\
		6502	};\
		6503	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6504	ctx.lineWidth = line_width;\
		6505	for(var p = x_min; p <= x_max ; p++){\
		6506	num = Math.pow(xlogbase,p);\
		6507	for(var i = 1 ; i < xlogbase ; i++){\
		6508	x_e = x2px(i*num);\
7735	schaersvoo	6509	if( i == 1 ){\
7956	schaersvoo	6510	ctx.lineWidth = line_width;\
7739	schaersvoo	6511	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		6512	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	6513	xtxt = xlogbase+'^'+p.toFixed(0);\
		6514	corr = 0.5*(ctx.measureText(xtxt).width);\
		6515	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		6516	};\
		6517	}else{\
7956	schaersvoo	6518	ctx.lineWidth = 0.2*line_width;\
7735	schaersvoo	6519	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6520	};\
7739	schaersvoo	6521	if( x_e >= xmarge ){\
7956	schaersvoo	6522	ctx.beginPath();\
		6523	ctx.moveTo(x_e,0);\
		6524	ctx.lineTo(x_e,ysize - ymarge);\
		6525	ctx.stroke();\
		6526	ctx.closePath();\
7739	schaersvoo	6527	};\
		6528	};\
7956	schaersvoo	6529	};\
7735	schaersvoo	6530	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		6531	var minor_step = stepy / yminor;\
7749	schaersvoo	6532	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	6533	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6534	ctx.lineWidth = line_width;\
		6535	ctx.beginPath();\
		6536	ctx.moveTo(xmarge,y);\
		6537	ctx.lineTo(xsize,y);\
		6538	ctx.stroke();\
		6539	ctx.closePath();\
7735	schaersvoo	6540	if( use_axis_numbering == 1){\
		6541	ytxt = (px2y(y)).toFixed(prec);\
		6542	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		6543	};\
		6544	for(var dy = 1 ; dy < yminor ; dy++){\
		6545	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	6546	ctx.lineWidth = 0.2*line_width;\
		6547	ctx.beginPath();\
7739	schaersvoo	6548	ctx.moveTo(xmarge,y+dy*minor_step);\
7956	schaersvoo	6549	ctx.lineTo(xsize,y+dy*minor_step);\
		6550	ctx.stroke();\
		6551	ctx.closePath();\
7735	schaersvoo	6552	};\
		6553	};\
7956	schaersvoo	6554	ctx.restore();\
		6555	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7735	schaersvoo	6556	break;
7729	schaersvoo	6557	case DRAW_YLOGSCALE:
		6558	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
8105	schaersvoo	6559	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	6560	var obj;\
		6561	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6562	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6563	}\
		6564	else\
		6565	{\
		6566	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6567	};\
		6568	var ctx = obj.getContext(\"2d\");\
7729	schaersvoo	6569	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6570	ctx.save();\
		6571	ctx.lineWidth = line_width;\
7735	schaersvoo	6572	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		6573	var y_max = Math.log(ymax)/Math.log(ylogbase);\
8109	schaersvoo	6574	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
7739	schaersvoo	6575	if(use_axis_numbering == 1){\
7956	schaersvoo	6576	ctx.font = font_family;\
		6577	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
		6578	ymarge = 2*font_size;\
		6579	ctx.save();\
		6580	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6581	ctx.rect(0,0,xmarge,ysize);\
		6582	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6583	ctx.fill();\
		6584	ctx.restore();\
		6585	}else{xmarge = 0;ymarge = 0;};\
7739	schaersvoo	6586	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6587	ctx.save();\
		6588	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6589	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6590	corr = ctx.measureText(xaxislabel).width;\
		6591	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6592	ctx.restore();\
		6593	};\
7739	schaersvoo	6594	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6595	ctx.save();\
		6596	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6597	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6598	corr = ctx.measureText(yaxislabel).width;\
		6599	ctx.translate(xmarge+font_size,corr+font_size);\
		6600	ctx.rotate(-0.5*Math.PI);\
		6601	ctx.fillText(yaxislabel,0,0);\
		6602	ctx.restore();\
		6603	};\
		6604	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6605	ctx.lineWidth = line_width;\
		6606	for(var p = y_min; p <= y_max ; p++){\
		6607	num = Math.pow(ylogbase,p);\
		6608	for(var i = 1 ; i < ylogbase ; i++){\
		6609	y_e = y2px(i*num);\
7729	schaersvoo	6610	if( i == 1 ){\
7956	schaersvoo	6611	ctx.lineWidth = line_width;\
7729	schaersvoo	6612	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	6613	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	6614	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	6615	};\
		6616	}else{\
7956	schaersvoo	6617	ctx.lineWidth = 0.2*line_width;\
7729	schaersvoo	6618	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6619	};\
7956	schaersvoo	6620	ctx.beginPath();\
		6621	ctx.moveTo(xmarge,y_e);\
		6622	ctx.lineTo(xsize,y_e);\
		6623	ctx.stroke();\
		6624	ctx.closePath();\
		6625	};\
		6626	};\
7729	schaersvoo	6627	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		6628	var minor_step = stepx / xminor;\
		6629	var prec = Math.log(precision)/Math.log(10);\
		6630	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	6631	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	6632	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6633	ctx.lineWidth = line_width;\
		6634	ctx.beginPath();\
		6635	ctx.moveTo(x,ysize-ymarge);\
		6636	ctx.lineTo(x,0);\
		6637	ctx.stroke();\
		6638	ctx.closePath();\
7729	schaersvoo	6639	if( use_axis_numbering == 1){\
		6640	xtxt = (px2x(x)).toFixed(prec);\
		6641	corr = 0.5*(ctx.measureText(xtxt).width);\
		6642	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		6643	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		6644	};\
		6645	for(var dx = 1 ; dx < xminor ; dx++){\
		6646	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	6647	ctx.lineWidth = 0.2*line_width;\
		6648	ctx.beginPath();\
7739	schaersvoo	6649	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7956	schaersvoo	6650	ctx.lineTo(x+dx*minor_step,0);\
		6651	ctx.stroke();\
		6652	ctx.closePath();\
7735	schaersvoo	6653	};\
		6654	};\
7956	schaersvoo	6655	ctx.restore();\
		6656	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7729	schaersvoo	6657	break;
7614	schaersvoo	6658	default:break;
		6659	}
		6660	}
		6661	}
		6662	return;
		6663	}
		6664
		6665	void check_string_length(int L){
		6666	if(L<1 \|\| L > MAX_BUFFER-1){
		6667	canvas_error("problem with your arguments to command...");
		6668	}
		6669	return;
		6670	}
		6671
		6672
		6673	int get_token(FILE *infile){
		6674	int c,i=0;
		6675	char temp[MAX_INT], *input_type;
		6676	char *line="line",
		6677	*audio="audio",
		6678	*blink="blink",
		6679	*arrowhead="arrowhead",
		6680	*crosshairsize="crosshairsize",
		6681	*crosshair="crosshair",
		6682	*crosshairs="crosshairs",
		6683	*audioobject="audioobject",
		6684	*style="style",
		6685	*mouse="mouse",
7991	schaersvoo	6686	*mousex="mousex",
		6687	*mousey="mousey",
8071	schaersvoo	6688	*mouse_display="display",
		6689	*mouse_degree="mouse_degree",
7614	schaersvoo	6690	*userdraw="userdraw",
		6691	*highlight="highlight",
		6692	*http="http",
		6693	*rays="rays",
		6694	*dashtype="dashtype",
		6695	*dashed="dashed",
		6696	*filled="filled",
		6697	*lattice="lattice",
		6698	*parallel="parallel",
		6699	*segment="segment",
		6700	*dsegment="dsegment",
		6701	*seg="seg",
		6702	*bgimage="bgimage",
		6703	*bgcolor="bgcolor",
		6704	*strokecolor="strokecolor",
		6705	*backgroundimage="backgroundimage",
		6706	*text="text",
		6707	*textup="textup",
		6708	*mouseprecision="mouseprecision",
		6709	*precision="precision",
		6710	*plotsteps="plotsteps",
		6711	*plotstep="plotstep",
		6712	*tsteps="tsteps",
		6713	*curve="curve",
		6714	*dcurve="dcurve",
		6715	*plot="plot",
		6716	*dplot="dplot",
7788	schaersvoo	6717	*levelcurve="levelcurve",
7614	schaersvoo	6718	*fontsize="fontsize",
		6719	*fontcolor="fontcolor",
		6720	*axis="axis",
		6721	*axisnumbering="axisnumbering",
		6722	*axisnumbers="axisnumbers",
		6723	*arrow="arrow",
		6724	*darrow="darrow",
		6725	*arrow2="arrow2",
		6726	*darrow2="darrow2",
		6727	*zoom="zoom",
		6728	*grid="grid",
		6729	*hline="hline",
7786	schaersvoo	6730	*dhline="dhline",
7614	schaersvoo	6731	*drag="drag",
		6732	*horizontalline="horizontalline",
		6733	*vline="vline",
7786	schaersvoo	6734	*dvline="dvline",
7614	schaersvoo	6735	*verticalline="verticalline",
		6736	*triangle="triangle",
		6737	*ftriangle="ftriangle",
		6738	*mathml="mathml",
		6739	*html="html",
		6740	*input="input",
8146	schaersvoo	6741	*clearbutton="clearbutton",
7614	schaersvoo	6742	*inputstyle="inputstyle",
		6743	*textarea="textarea",
		6744	*trange="trange",
		6745	*ranget="ranget",
		6746	*xrange="xrange",
		6747	*yrange="yrange",
		6748	*rangex="rangex",
		6749	*rangey="rangey",
		6750	*polyline="polyline",
		6751	*lines="lines",
		6752	*poly="poly",
		6753	*polygon="polygon",
		6754	*fpolygon="fpolygon",
		6755	*fpoly="fpoly",
		6756	*filledpoly="filledpoly",
		6757	*filledpolygon="filledpolygon",
		6758	*rect="rect",
		6759	*frect="frect",
		6760	*rectangle="rectangle",
		6761	*frectangle="frectangle",
		6762	*square="square",
		6763	*fsquare="fsquare",
		6764	*dline="dline",
		6765	*arc="arc",
		6766	*filledarc="filledarc",
		6767	*size="size",
		6768	*string="string",
		6769	*stringup="stringup",
		6770	*copy="copy",
		6771	*copyresized="copyresized",
		6772	*opacity="opacity",
		6773	*transparent="transparent",
		6774	*fill="fill",
		6775	*point="point",
		6776	*points="points",
		6777	*linewidth="linewidth",
		6778	*circle="circle",
		6779	*fcircle="fcircle",
		6780	*disk="disk",
		6781	*comment="#",
		6782	*end="end",
		6783	*ellipse="ellipse",
		6784	*fellipse="fellipse",
		6785	*rotate="rotate",
7785	schaersvoo	6786	*affine="affine",
		6787	*killaffine="killaffine",
7614	schaersvoo	6788	*fontfamily="fontfamily",
		6789	*fillcolor="fillcolor",
		6790	*clicktile="clicktile",
		6791	*clicktile_colors="clicktile_colors",
		6792	*translation="translation",
		6793	*translate="translate",
		6794	*killtranslation="killtranslation",
		6795	*killtranslate="killtranslate",
		6796	*onclick="onclick",
		6797	*roundrect="roundrect",
		6798	*froundrect="froundrect",
		6799	*roundrectangle="roundrectangle",
		6800	*patternfill="patternfill",
		6801	*hatchfill="hatchfill",
		6802	*diafill="diafill",
7647	schaersvoo	6803	*diamondfill="diamondfill",
7614	schaersvoo	6804	*dotfill="dotfill",
		6805	*gridfill="gridfill",
		6806	*imagefill="imagefill",
7735	schaersvoo	6807	*xlogbase="xlogbase",
		6808	*ylogbase="ylogbase",
7614	schaersvoo	6809	*xlogscale="xlogscale",
		6810	*ylogscale="ylogscale",
		6811	*xylogscale="xylogscale",
		6812	*intooltip="intooltip",
		6813	*replyformat="replyformat",
		6814	*floodfill="floodfill",
		6815	*filltoborder="filltoborder",
		6816	*clickfill="clickfill",
		6817	*setpixel="setpixel",
		6818	*pixels="pixels",
		6819	*pixelsize="pixelsize",
		6820	*clickfillmarge="clickfillmarge",
		6821	*xaxis="xaxis",
		6822	*yaxis="yaxis",
		6823	*xaxistext="xaxistext",
		6824	*yaxistext="yaxistext",
		6825	*piechart="piechart",
		6826	*legend="legend",
		6827	*legendcolors="legendcolors",
		6828	*xlabel="xlabel",
		6829	*ylabel="ylabel",
		6830	*barchart="barchart",
		6831	*linegraph="linegraph",
		6832	*clock="clock",
		6833	*animate="animate",
		6834	*video="video",
		6835	*status="status",
7877	schaersvoo	6836	*nostatus="nostatus",
7652	schaersvoo	6837	*snaptogrid="snaptogrid",
7784	schaersvoo	6838	*xsnaptogrid="xsnaptogrid",
		6839	*ysnaptogrid="ysnaptogrid",
7654	schaersvoo	6840	*userinput_xy="userinput_xy",
8193	schaersvoo	6841	*userinput_function="userinput_function",
7663	schaersvoo	6842	*usertextarea_xy="usertextarea_xy",
8222	schaersvoo	6843	*userinput="userinput",
7823	schaersvoo	6844	*jsmath="jsmath",
7858	schaersvoo	6845	*trace_jscurve="trace_jscurve",
7838	schaersvoo	6846	*setlimits="setlimits",
7858	schaersvoo	6847	*jscurve="jscurve",
		6848	*jsplot="jsplot",
7983	schaersvoo	6849	*sgraph="sgraph",
7984	schaersvoo	6850	*title="title",
7996	schaersvoo	6851	*centerstring="centerstring",
		6852	*xunit="xunit",
8071	schaersvoo	6853	*yunit="yunit",
8101	schaersvoo	6854	*slider="slider",
8105	schaersvoo	6855	*killslider="killslider",
8244	schaersvoo	6856	*angle="angle",
		6857	*halfline="halfline",
8297	schaersvoo	6858	*demiline="demiline",
		6859	*functionlabel="functionlabel";
7614	schaersvoo	6860
		6861	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
		6862	if( i == 0 && (c == ' ' \|\| c == '\t') ){
		6863	continue; /* white spaces or tabs allowed before first command identifier */
		6864	}
		6865	else
		6866	{
		6867	if( c == ' ' \|\| c == '\t' ){
		6868	break;
		6869	}
		6870	else
		6871	{
		6872	temp[i] = c;
		6873	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		6874	i++;
		6875	}
		6876	}
		6877	if(temp[0] == '#') break;
		6878	}
		6879	if (c == EOF) finished = 1;
		6880
		6881	if (c == '\n' \|\| c == '\r') {
		6882	line_number++;
		6883	if (i == 0) { return EMPTY; }
		6884	} else if (c == EOF) {
		6885	return 0;
		6886	}
		6887
		6888	temp[i]='\0';
		6889	input_type=(char*)my_newmem(strlen(temp));
		6890	snprintf(input_type,sizeof(temp),"%s",temp);
		6891
		6892	if( strcmp(input_type, size) == 0 ){
		6893	free(input_type);
		6894	return SIZE;
		6895	}
		6896	if( strcmp(input_type, xrange) == 0 ){
		6897	free(input_type);
		6898	return XRANGE;
		6899	}
		6900	if( strcmp(input_type, rangex) == 0 ){
		6901	free(input_type);
		6902	return XRANGE;
		6903	}
		6904	if( strcmp(input_type, trange) == 0 ){
		6905	free(input_type);
		6906	return TRANGE;
		6907	}
		6908	if( strcmp(input_type, ranget) == 0 ){
		6909	free(input_type);
		6910	return TRANGE;
		6911	}
		6912	if( strcmp(input_type, yrange) == 0 ){
		6913	free(input_type);
		6914	return YRANGE;
		6915	}
		6916	if( strcmp(input_type, rangey) == 0 ){
		6917	free(input_type);
		6918	return YRANGE;
		6919	}
		6920	if( strcmp(input_type, linewidth) == 0 ){
		6921	free(input_type);
		6922	return LINEWIDTH;
		6923	}
		6924	if( strcmp(input_type, dashed) == 0 ){
		6925	free(input_type);
		6926	return DASHED;
		6927	}
		6928	if( strcmp(input_type, dashtype) == 0 ){
		6929	free(input_type);
		6930	return DASHTYPE;
		6931	}
		6932	if( strcmp(input_type, axisnumbering) == 0 ){
		6933	free(input_type);
		6934	return AXIS_NUMBERING;
		6935	}
		6936	if( strcmp(input_type, axisnumbers) == 0 ){
		6937	free(input_type);
		6938	return AXIS_NUMBERING;
		6939	}
		6940	if( strcmp(input_type, axis) == 0 ){
		6941	free(input_type);
		6942	return AXIS;
		6943	}
		6944	if( strcmp(input_type, grid) == 0 ){
		6945	free(input_type);
		6946	return GRID;
		6947	}
		6948	if( strcmp(input_type, parallel) == 0 ){
		6949	free(input_type);
		6950	return PARALLEL;
		6951	}
		6952	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
		6953	free(input_type);
		6954	return HLINE;
		6955	}
		6956	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		6957	free(input_type);
		6958	return VLINE;
		6959	}
		6960	if( strcmp(input_type, line) == 0 ){
		6961	free(input_type);
		6962	return LINE;
		6963	}
		6964	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		6965	free(input_type);
		6966	return SEGMENT;
		6967	}
		6968	if( strcmp(input_type, dsegment) == 0 ){
		6969	free(input_type);
		6970	use_dashed = TRUE;
		6971	return SEGMENT;
		6972	}
		6973	if( strcmp(input_type, crosshairsize) == 0 ){
		6974	free(input_type);
		6975	return CROSSHAIRSIZE;
		6976	}
		6977	if( strcmp(input_type, arrowhead) == 0 ){
		6978	free(input_type);
		6979	return ARROWHEAD;
		6980	}
		6981	if( strcmp(input_type, crosshairs) == 0 ){
		6982	free(input_type);
		6983	return CROSSHAIRS;
		6984	}
		6985	if( strcmp(input_type, crosshair) == 0 ){
		6986	free(input_type);
		6987	return CROSSHAIR;
		6988	}
		6989	if( strcmp(input_type, onclick) == 0 ){
		6990	free(input_type);
		6991	return ONCLICK;
		6992	}
		6993	if( strcmp(input_type, drag) == 0 ){
		6994	free(input_type);
		6995	return DRAG;
		6996	}
		6997	if( strcmp(input_type, userdraw) == 0 ){
		6998	free(input_type);
		6999	return USERDRAW;
		7000	}
		7001	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		7002	free(input_type);
		7003	return STYLE;
		7004	}
		7005	if( strcmp(input_type, fillcolor) == 0 ){
		7006	free(input_type);
		7007	return FILLCOLOR;
		7008	}
		7009	if( strcmp(input_type, strokecolor) == 0 ){
		7010	free(input_type);
		7011	return STROKECOLOR;
		7012	}
		7013	if( strcmp(input_type, filled) == 0 ){
		7014	free(input_type);
		7015	return FILLED;
		7016	}
		7017	if( strcmp(input_type, http) == 0 ){
		7018	free(input_type);
		7019	return HTTP;
		7020	}
		7021	if( strcmp(input_type, rays) == 0 ){
		7022	free(input_type);
		7023	return RAYS;
		7024	}
		7025	if( strcmp(input_type, lattice) == 0 ){
		7026	free(input_type);
		7027	return LATTICE;
		7028	}
		7029	if( strcmp(input_type, bgimage) == 0 ){
		7030	free(input_type);
		7031	return BGIMAGE;
		7032	}
		7033	if( strcmp(input_type, bgcolor) == 0 ){
		7034	free(input_type);
		7035	return BGCOLOR;
		7036	}
		7037	if( strcmp(input_type, backgroundimage) == 0 ){
		7038	free(input_type);
		7039	return BGIMAGE;
		7040	}
		7041	if( strcmp(input_type, text) == 0 ){
		7042	free(input_type);
		7043	return FLY_TEXT;
		7044	}
		7045	if( strcmp(input_type, textup) == 0 ){
		7046	free(input_type);
		7047	return FLY_TEXTUP;
		7048	}
		7049	if( strcmp(input_type, mouse) == 0 ){
		7050	free(input_type);
		7051	return MOUSE;
		7052	}
7991	schaersvoo	7053	if( strcmp(input_type, mousex) == 0 ){
		7054	free(input_type);
		7055	return MOUSEX;
		7056	}
		7057	if( strcmp(input_type, mousey) == 0 ){
		7058	free(input_type);
		7059	return MOUSEY;
		7060	}
8071	schaersvoo	7061	if( strcmp(input_type, mouse_degree) == 0 ){
		7062	free(input_type);
		7063	return MOUSE_DEGREE;
		7064	}
		7065	if( strcmp(input_type, mouse_display) == 0 ){
		7066	free(input_type);
		7067	return MOUSE_DISPLAY;
		7068	}
7614	schaersvoo	7069	if( strcmp(input_type, mouseprecision) == 0 ){
		7070	free(input_type);
		7071	return MOUSE_PRECISION;
		7072	}
		7073	if( strcmp(input_type, precision) == 0 ){
		7074	free(input_type);
		7075	return MOUSE_PRECISION;
		7076	}
		7077	if( strcmp(input_type, curve) == 0 ){
		7078	free(input_type);
		7079	return CURVE;
		7080	}
		7081	if( strcmp(input_type, dcurve) == 0 ){
7788	schaersvoo	7082	use_dashed = TRUE;
7614	schaersvoo	7083	free(input_type);
		7084	return CURVE;
		7085	}
		7086	if( strcmp(input_type, plot) == 0 ){
		7087	free(input_type);
		7088	return CURVE;
		7089	}
		7090	if( strcmp(input_type, dplot) == 0 ){
7788	schaersvoo	7091	use_dashed = TRUE;
7614	schaersvoo	7092	free(input_type);
		7093	return CURVE;
		7094	}
7788	schaersvoo	7095	if( strcmp(input_type, levelcurve) == 0 ){
		7096	free(input_type);
		7097	return LEVELCURVE;
		7098	}
7614	schaersvoo	7099	if( strcmp(input_type, plotsteps) == 0 ){
		7100	free(input_type);
		7101	return PLOTSTEPS;
		7102	}
		7103	if( strcmp(input_type, plotstep) == 0 ){
		7104	free(input_type);
		7105	return PLOTSTEPS;
		7106	}
		7107	if( strcmp(input_type, tsteps) == 0 ){
		7108	free(input_type);
		7109	return PLOTSTEPS;
		7110	}
		7111	if( strcmp(input_type, fontsize) == 0 ){
		7112	free(input_type);
		7113	return FONTSIZE;
		7114	}
		7115	if( strcmp(input_type, fontcolor) == 0 ){
		7116	free(input_type);
		7117	return FONTCOLOR;
		7118	}
		7119	if( strcmp(input_type, arrow) == 0 ){
		7120	free(input_type);
		7121	return ARROW;
		7122	}
		7123	if( strcmp(input_type, arrow2) == 0 ){
		7124	free(input_type);
		7125	return ARROW2;
		7126	}
		7127	if( strcmp(input_type, darrow) == 0 ){
		7128	free(input_type);
8071	schaersvoo	7129	use_dashed = TRUE;
7614	schaersvoo	7130	return ARROW;
		7131	}
		7132	if( strcmp(input_type, darrow2) == 0 ){
		7133	free(input_type);
		7134	use_dashed = TRUE;
		7135	return ARROW2;
		7136	}
		7137	if( strcmp(input_type, zoom) == 0 ){
		7138	free(input_type);
		7139	return ZOOM;
		7140	}
		7141	if( strcmp(input_type, triangle) == 0 ){
		7142	free(input_type);
		7143	return TRIANGLE;
		7144	}
		7145	if( strcmp(input_type, ftriangle) == 0 ){
		7146	free(input_type);
		7147	use_filled = TRUE;
		7148	return TRIANGLE;
		7149	}
		7150	if( strcmp(input_type, input) == 0 ){
		7151	free(input_type);
		7152	return INPUT;
		7153	}
		7154	if( strcmp(input_type, inputstyle) == 0 ){
		7155	free(input_type);
		7156	return INPUTSTYLE;
		7157	}
		7158	if( strcmp(input_type, textarea) == 0 ){
		7159	free(input_type);
		7160	return TEXTAREA;
		7161	}
		7162	if( strcmp(input_type, mathml) == 0 ){
		7163	free(input_type);
		7164	return MATHML;
		7165	}
		7166	if( strcmp(input_type, html) == 0 ){
		7167	free(input_type);
		7168	return MATHML;
		7169	}
		7170	if( strcmp(input_type, fontfamily) == 0 ){
		7171	free(input_type);
		7172	return FONTFAMILY;
		7173	}
		7174	if( strcmp(input_type, lines) == 0 \|\| strcmp(input_type, polyline) == 0 ){
		7175	free(input_type);
		7176	return POLYLINE;
		7177	}
		7178	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		7179	free(input_type);
		7180	return RECT;
		7181	}
		7182	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		7183	free(input_type);
		7184	return ROUNDRECT;
		7185	}
		7186	if( strcmp(input_type, froundrect) == 0 ){
		7187	free(input_type);
		7188	use_filled = TRUE;
		7189	return ROUNDRECT;
		7190	}
		7191	if( strcmp(input_type, square) == 0 ){
		7192	free(input_type);
		7193	return SQUARE;
		7194	}
		7195	if( strcmp(input_type, fsquare) == 0 ){
		7196	free(input_type);
		7197	use_filled = TRUE;
		7198	return SQUARE;
		7199	}
		7200	if( strcmp(input_type, dline) == 0 ){
		7201	use_dashed = TRUE;
		7202	free(input_type);
		7203	return LINE;
		7204	}
7786	schaersvoo	7205	if( strcmp(input_type, dvline) == 0 ){
		7206	use_dashed = TRUE;
		7207	free(input_type);
		7208	return VLINE;
		7209	}
		7210	if( strcmp(input_type, dhline) == 0 ){
		7211	use_dashed = TRUE;
		7212	free(input_type);
		7213	return HLINE;
		7214	}
7614	schaersvoo	7215	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		7216	use_filled = TRUE;
		7217	free(input_type);
		7218	return RECT;
		7219	}
		7220	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		7221	use_filled = TRUE;
		7222	free(input_type);
		7223	return CIRCLE;
		7224	}
		7225	if( strcmp(input_type, circle) == 0 ){
		7226	free(input_type);
		7227	return CIRCLE;
		7228	}
		7229	if( strcmp(input_type, point) == 0 ){
		7230	free(input_type);
		7231	return POINT;
		7232	}
		7233	if( strcmp(input_type, points) == 0 ){
		7234	free(input_type);
		7235	return POINTS;
		7236	}
		7237	if( strcmp(input_type, filledarc) == 0 ){
		7238	use_filled = TRUE;
		7239	free(input_type);
		7240	return ARC;
		7241	}
		7242	if( strcmp(input_type, arc) == 0 ){
		7243	free(input_type);
		7244	return ARC;
		7245	}
		7246	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		7247	free(input_type);
		7248	return POLY;
		7249	}
		7250	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		7251	use_filled = TRUE;
		7252	free(input_type);
		7253	return POLY;
		7254	}
		7255	if( strcmp(input_type, ellipse) == 0){
		7256	free(input_type);
		7257	return ELLIPSE;
		7258	}
		7259	if( strcmp(input_type, fill) == 0 ){
		7260	free(input_type);
		7261	return FLOODFILL;
		7262	}
		7263	if( strcmp(input_type, string) == 0 ){
		7264	free(input_type);
		7265	return STRING;
		7266	}
		7267	if( strcmp(input_type, stringup) == 0 ){
		7268	free(input_type);
		7269	return STRINGUP;
		7270	}
		7271	if( strcmp(input_type, opacity) == 0 ){
		7272	free(input_type);
		7273	return OPACITY;
		7274	}
		7275	if( strcmp(input_type, comment) == 0){
		7276	free(input_type);
		7277	return COMMENT;
		7278	}
		7279	if( strcmp(input_type, end) == 0){
		7280	free(input_type);
		7281	return END;
		7282	}
		7283	if( strcmp(input_type, fellipse) == 0){
		7284	free(input_type);
		7285	use_filled = TRUE;
		7286	return ELLIPSE;
8224	bpr	7287	}
7614	schaersvoo	7288	if( strcmp(input_type, blink) == 0 ){
		7289	free(input_type);
		7290	return BLINK;
		7291	}
8146	schaersvoo	7292	if( strcmp(input_type, clearbutton) == 0){
7614	schaersvoo	7293	free(input_type);
8146	schaersvoo	7294	return CLEARBUTTON;
7614	schaersvoo	7295	}
		7296	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		7297	free(input_type);
		7298	return TRANSLATION;
		7299	}
		7300	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		7301	free(input_type);
		7302	return KILLTRANSLATION;
		7303	}
		7304	if( strcmp(input_type, rotate) == 0){
		7305	free(input_type);
		7306	return ROTATE;
		7307	}
7785	schaersvoo	7308	if( strcmp(input_type, affine) == 0){
		7309	free(input_type);
		7310	return AFFINE;
		7311	}
		7312	if( strcmp(input_type, killaffine) == 0){
		7313	free(input_type);
		7314	return KILLAFFINE;
		7315	}
7614	schaersvoo	7316	if( strcmp(input_type, audio) == 0 ){
		7317	free(input_type);
		7318	return AUDIO;
		7319	}
		7320	if( strcmp(input_type, audioobject) == 0 ){
		7321	free(input_type);
		7322	return AUDIOOBJECT;
		7323	}
		7324	if( strcmp(input_type, slider) == 0 ){
		7325	free(input_type);
		7326	return SLIDER;
		7327	}
8101	schaersvoo	7328	if( strcmp(input_type, killslider) == 0 ){
		7329	free(input_type);
		7330	return KILLSLIDER;
		7331	}
7614	schaersvoo	7332	if( strcmp(input_type, copy) == 0 ){
		7333	free(input_type);
		7334	return COPY;
		7335	}
		7336	if( strcmp(input_type, copyresized) == 0 ){
		7337	free(input_type);
		7338	return COPYRESIZED;
		7339	}
		7340	if( strcmp(input_type, patternfill) == 0 ){
		7341	free(input_type);
		7342	return PATTERNFILL;
		7343	}
		7344	if( strcmp(input_type, hatchfill) == 0 ){
		7345	free(input_type);
		7346	return HATCHFILL;
		7347	}
7647	schaersvoo	7348	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
7614	schaersvoo	7349	free(input_type);
7647	schaersvoo	7350	return DIAMONDFILL;
7614	schaersvoo	7351	}
		7352	if( strcmp(input_type, dotfill) == 0 ){
		7353	free(input_type);
		7354	return DOTFILL;
		7355	}
		7356	if( strcmp(input_type, gridfill) == 0 ){
		7357	free(input_type);
		7358	return GRIDFILL;
		7359	}
		7360	if( strcmp(input_type, imagefill) == 0 ){
		7361	free(input_type);
		7362	return IMAGEFILL;
		7363	}
		7364	if( strcmp(input_type, clicktile_colors) == 0 ){
		7365	free(input_type);
		7366	return CLICKTILE_COLORS;
		7367	}
		7368	if( strcmp(input_type, clicktile) == 0 ){
		7369	free(input_type);
		7370	return CLICKTILE;
		7371	}
		7372	if( strcmp(input_type, xlogscale) == 0 ){
		7373	free(input_type);
		7374	return XLOGSCALE;
		7375	}
		7376	if( strcmp(input_type, ylogscale) == 0 ){
		7377	free(input_type);
		7378	return YLOGSCALE;
		7379	}
		7380	if( strcmp(input_type, xylogscale) == 0 ){
		7381	free(input_type);
		7382	return XYLOGSCALE;
		7383	}
		7384	if( strcmp(input_type, ylogscale) == 0 ){
		7385	free(input_type);
		7386	return YLOGSCALE;
		7387	}
7735	schaersvoo	7388	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	7389	free(input_type);
7735	schaersvoo	7390	return XLOGBASE;
7614	schaersvoo	7391	}
7735	schaersvoo	7392	if( strcmp(input_type, ylogbase) == 0 ){
		7393	free(input_type);
		7394	return YLOGBASE;
		7395	}
7614	schaersvoo	7396	if( strcmp(input_type, intooltip) == 0 ){
		7397	free(input_type);
		7398	return INTOOLTIP;
		7399	}
		7400	if( strcmp(input_type,video) == 0 ){
		7401	free(input_type);
		7402	return VIDEO;
		7403	}
		7404	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		7405	free(input_type);
		7406	return FLOODFILL;
8224	bpr	7407	}
7614	schaersvoo	7408	if( strcmp(input_type,filltoborder) == 0 ){
		7409	free(input_type);
		7410	return FILLTOBORDER;
8224	bpr	7411	}
7614	schaersvoo	7412	if( strcmp(input_type,clickfill) == 0 ){
		7413	free(input_type);
		7414	return CLICKFILL;
8224	bpr	7415	}
7614	schaersvoo	7416	if( strcmp(input_type, replyformat) == 0 ){
		7417	free(input_type);
		7418	return REPLYFORMAT;
		7419	}
		7420	if( strcmp(input_type, pixelsize) == 0 ){
		7421	free(input_type);
		7422	return PIXELSIZE;
		7423	}
		7424	if( strcmp(input_type, setpixel) == 0 ){
		7425	free(input_type);
		7426	return SETPIXEL;
		7427	}
		7428	if( strcmp(input_type, pixels) == 0 ){
		7429	free(input_type);
		7430	return PIXELS;
		7431	}
		7432	if( strcmp(input_type, clickfillmarge) == 0 ){
		7433	free(input_type);
		7434	return CLICKFILLMARGE;
		7435	}
		7436	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		7437	free(input_type);
		7438	return X_AXIS_STRINGS;
		7439	}
		7440	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		7441	free(input_type);
		7442	return Y_AXIS_STRINGS;
		7443	}
		7444	if( strcmp(input_type, piechart) == 0 ){
		7445	free(input_type);
		7446	return PIECHART;
		7447	}
		7448	if( strcmp(input_type, barchart) == 0 ){
		7449	free(input_type);
		7450	return BARCHART;
		7451	}
		7452	if( strcmp(input_type, linegraph) == 0 ){
		7453	free(input_type);
		7454	return LINEGRAPH;
		7455	}
		7456	if( strcmp(input_type, clock) == 0 ){
		7457	free(input_type);
		7458	return CLOCK;
		7459	}
		7460	if( strcmp(input_type, legend) == 0 ){
		7461	free(input_type);
		7462	return LEGEND;
		7463	}
		7464	if( strcmp(input_type, legendcolors) == 0 ){
		7465	free(input_type);
		7466	return LEGENDCOLORS;
		7467	}
		7468	if( strcmp(input_type, xlabel) == 0 ){
		7469	free(input_type);
		7470	return XLABEL;
		7471	}
		7472	if( strcmp(input_type, ylabel) == 0 ){
		7473	free(input_type);
		7474	return YLABEL;
		7475	}
		7476	if( strcmp(input_type, animate) == 0 ){
		7477	free(input_type);
		7478	return ANIMATE;
		7479	}
		7480	/* these are bitmap related flydraw commmands...must be removed. eventually */
		7481	if( strcmp(input_type, transparent) == 0 ){
		7482	free(input_type);
		7483	return TRANSPARENT;
		7484	}
7877	schaersvoo	7485	if( strcmp(input_type, status) == 0 \|\| strcmp(input_type, nostatus) == 0 ){
7614	schaersvoo	7486	free(input_type);
		7487	return STATUS;
		7488	}
		7489	if( strcmp(input_type, snaptogrid) == 0 ){
		7490	free(input_type);
		7491	return SNAPTOGRID;
		7492	}
7784	schaersvoo	7493	if( strcmp(input_type, xsnaptogrid) == 0 ){
		7494	free(input_type);
		7495	return XSNAPTOGRID;
		7496	}
		7497	if( strcmp(input_type, ysnaptogrid) == 0 ){
		7498	free(input_type);
		7499	return YSNAPTOGRID;
		7500	}
7652	schaersvoo	7501	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	7502	free(input_type);
7652	schaersvoo	7503	return USERINPUT_XY;
		7504	}
8193	schaersvoo	7505	if( strcmp(input_type, userinput_function) == 0 ){
		7506	free(input_type);
		7507	return USERINPUT_FUNCTION;
		7508	}
7663	schaersvoo	7509	if( strcmp(input_type, usertextarea_xy) == 0 ){
		7510	free(input_type);
		7511	return USERTEXTAREA_XY;
		7512	}
8222	schaersvoo	7513	if( strcmp(input_type, userinput) == 0 ){
		7514	free(input_type);
		7515	return USERINPUT;
		7516	}
7654	schaersvoo	7517	if( strcmp(input_type, sgraph) == 0 ){
7652	schaersvoo	7518	free(input_type);
7654	schaersvoo	7519	return SGRAPH;
		7520	}
7823	schaersvoo	7521	if( strcmp(input_type, jsmath) == 0 ){
7654	schaersvoo	7522	free(input_type);
7823	schaersvoo	7523	return JSMATH;
		7524	}
7858	schaersvoo	7525	if( strcmp(input_type, trace_jscurve) == 0 ){
7823	schaersvoo	7526	free(input_type);
7858	schaersvoo	7527	return TRACE_JSCURVE;
7823	schaersvoo	7528	}
7858	schaersvoo	7529	if( strcmp(input_type, jscurve) == 0 \|\| strcmp(input_type, jsplot) == 0 ){
		7530	free(input_type);
		7531	return JSCURVE;
		7532	}
7984	schaersvoo	7533	if( strcmp(input_type, centerstring) == 0 \|\| strcmp(input_type, title) == 0 ){
7983	schaersvoo	7534	free(input_type);
		7535	return CENTERSTRING;
		7536	}
7838	schaersvoo	7537	if( strcmp(input_type, setlimits) == 0 ){
7823	schaersvoo	7538	free(input_type);
7838	schaersvoo	7539	return SETLIMITS;
		7540	}
7996	schaersvoo	7541	if( strcmp(input_type, xunit) == 0 ){
7838	schaersvoo	7542	free(input_type);
7996	schaersvoo	7543	return XUNIT;
		7544	}
		7545	if( strcmp(input_type, yunit) == 0 ){
		7546	free(input_type);
		7547	return YUNIT;
		7548	}
8105	schaersvoo	7549	if( strcmp(input_type, angle) == 0 ){
7996	schaersvoo	7550	free(input_type);
8105	schaersvoo	7551	return ANGLE;
		7552	}
8244	schaersvoo	7553	if( strcmp(input_type, halfline) == 0 \|\| strcmp(input_type, demiline) == 0 ){
8105	schaersvoo	7554	free(input_type);
8244	schaersvoo	7555	return HALFLINE;
		7556	}
8297	schaersvoo	7557	if( strcmp(input_type, functionlabel) == 0 ){
8244	schaersvoo	7558	free(input_type);
8297	schaersvoo	7559	return FUNCTION_LABEL;
		7560	}
		7561	free(input_type);
7614	schaersvoo	7562	ungetc(c,infile);
		7563	return 0;
		7564	}
7856	schaersvoo	7565

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 8297