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

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 8225