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	*/
		12	#include <stdio.h>
		13	#include <stdlib.h>
		14	#include <errno.h>
		15	#include <string.h>
		16	#include <unistd.h>
		17	#include <time.h> /* use for random id's */
		18	#include <math.h>
		19	/*
		20	#include <ctype.h>
		21	11/2013
		22	removed: FreeBSD 9.0 / 9.1 C-lib bug...in chroot it will result in: Undefined symbol "_ThreadRuneLocale" implemented own versions of tolower() / toupper()
		23	Clang is fine (FreeBSD 10.0)
		24	*/
		25
		26	/*
		27	in case svgdraw is in ~/src/Misc/svgdraw
		28	#include "../svgdraw/include/matheval.h"
		29	*/
		30	#include "include/matheval.h"
		31	#include <assert.h>
		32	#include "canvasdraw.h"
7634	schaersvoo	33	#include<sys/stat.h>
7614	schaersvoo	34
		35	/* needed for gettimeofday */
		36	#include <sys/time.h>
		37	#include "canvasmacro.c"
		38	/******************************************************************************
		39	** Internal Functions
		40	******************************************************************************/
		41	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		42	void sync_input(FILE infile);/ proceed with inputfile */
		43	void canvas_error(char *msg);
		44	void add_javascript_functions(int js_functions[], int canvas_root_id);
		45	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		46	int get_token(FILE infile); / read next char until EOL*/
		47	int x2px(double x);
		48	int y2px(double y);
		49	double px2x(int x);
		50	double px2y(int y);
		51	double get_real(FILE infile,int last); / read a values; calculation and symbols allowed */
		52	double get_double(FILE infile , int orientation , int last); /the same as get_real(): but for an unknown amount of data args*/
		53	char str_replace ( const char word, const char sub_word, const char rep_word );
		54	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
		55	char get_string(FILE infile,int last); /* get the string at theend of a command */
		56	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		57	char convert_hex2rgb(char hexcolor);
		58	void add_read_canvas(int reply_format);
		59	void make_js_include(int canvas_root_id);
		60	void check_string_length(int length);/* checks if the length of string argument of command is correct */
		61	FILE *js_include_file;
		62	FILE get_file(int line_number, char **filename);
		63	FILE infile; / will be stdin */
		64	/******************************************************************************
		65	** global
		66	******************************************************************************/
		67	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		68	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		69	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		70	int xsize = 320;
		71	int ysize = 320;
		72	double xmin = 0.0;
		73	double xmax = 320.0;
		74	double ymin = 0.0;
		75	double ymax = 320.0;
		76	double tmax = 2;
		77	double tmin = -2;
		78	/* flag to indicate parsing of line status */
		79	int done = FALSE;
		80	int type; /* eg command number */
		81	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
		82	int use_rotate = FALSE;
		83	int use_translate = FALSE;
		84	int use_filled = FALSE;
		85	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
		86	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
		87
		88	/******************************************************************************
		89	** Main Program
		90	******************************************************************************/
		91	int main(int argc, char *argv[]){
		92	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
		93	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
		94	infile = stdin;/* read flyscript via stdin */
		95	int i,c;
		96	double double_data[MAX_INT+1];
		97	int int_data[MAX_INT+1];
		98	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		99	int use_parametric = FALSE;/* will be reset after parametric plotting */
		100	int use_axis = FALSE;
		101	int use_axis_numbering = FALSE;
		102	int line_width = 1;
		103	int decimals = 2;
		104	int debug = 0;
		105	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
		106	int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
		107	int drag_type = -1;/* 0,1,2 : xy,x,y */
		108	int use_tooltip = FALSE;
		109	char *tooltip_text = "Click here";
		110	char temp = ""; / */
		111	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		112	char *stroke_color = "255,0,0";
		113	char *fill_color = "0,255,0";
		114	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		115	char *font_color = "#00000";
		116	char *draw_type = "points";
		117	char *fly_font = "normal";
		118	char *input_style = "";
		119	char *flytext = "";
		120	int pixelsize = 1;
		121	int reply_format = 0;
		122	int input_cnt = 0;
		123	int ext_img_cnt = 0;
		124	int font_size = 12;
		125	int dashtype[2] = { 2 , 2 };
		126	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		127	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
		128	int arrow_head = 8; /* size in px*/
		129	int crosshair_size = 10; /* size in px*/
		130	int plot_steps = 150;
		131	int found_size_command = 0;
		132	int click_cnt = 1;
		133	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		134	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
		135	int use_mouse_coordinates = FALSE;
		136	double angle = 0.0;
		137	int translate_x = 0;
		138	int translate_y = 0;
		139	int clickfillmarge = 20;
		140	int animation_type = 9; /* == object type curve in drag library */
7663	schaersvoo	141	int use_input_xy = 0;
7614	schaersvoo	142	size_t string_length = 0;
		143	double stroke_opacity = 0.8;
		144	double fill_opacity = 0.8;
		145	char *URL = "http://localhost/images";
		146	memset(buffer,'\0',MAX_BUFFER);
		147	void *tmp_buffer = "";
		148
		149	/* default writing a unzipped js-include file into wims getfile directory */
		150	char *w_wims_session = getenv("w_wims_session");
		151	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){
		152	canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
		153	}
		154	int L0=strlen(w_wims_session) + 21;
		155	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		156	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		157	mode_t process_mask = umask(0); /* check if file exists */
		158	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		159	if( result == 0 \|\| errno == EEXIST ){
		160	umask(process_mask); /* be sure to set correct permission */
		161	char *w_session = getenv("w_session");
		162	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
		163	char getfile_cmd = my_newmem(L1); / create memory to fit string precisely */
		164	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 */
		165	/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
		166	/* now write file into getfile dir*/
		167	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		168	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		169	char location = my_newmem(L2); / create memory to fit string precisely */
		170	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		171	js_include_file = fopen(location,"w");/* open the file location for writing */
		172	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		173	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		174
		175	/* ----------------------------------------------------- */
		176	/* while more lines to process */
		177
		178	while(!finished){
		179	if(line_number>1 && found_size_command == FALSE){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
		180	type = get_token(infile);
		181	done = FALSE;
		182	/*
		183	@canvasdraw
		184	@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...)
		185	@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>
		186	<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> 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();<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></ul>
		187	*/
		188	switch(type){
		189	case END:
		190	finished = 1;
		191	done = TRUE;
		192	break;
		193	case 0:
		194	sync_input(infile);
		195	break;
		196	case COMMENT:
		197	sync_input(infile);
		198	break;
		199	case EMPTY:
		200	sync_input(infile);
		201	break;
		202	case SIZE:
		203	/*
		204	@size width,height
		205	@set canvas size in pixels
		206	@mandatory first command
7647	schaersvoo	207	@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)
7614	schaersvoo	208	*/
		209	found_size_command = TRUE;
		210	xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		211	ysize = (int)(abs(round(get_real(infile,1))));
		212	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		213	xmin = 0;xmax = xsize;
7647	schaersvoo	214	ymin = 0;ymax = ysize;
7614	schaersvoo	215
		216	/*
		217	The sequence in which stuff is finally printed is important !!
		218	for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
		219	*/
		220	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;\" ></div><div id=\"tooltip_placeholder_div%d\" style=\"display:block\"><span id=\"tooltip_placeholder%d\" style=\"display:none\"></span></div>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
		221	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n");
		222	fprintf(stdout,"<!-- include actual object code via include file -->\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
7729	schaersvoo	223	fprintf(js_include_file,"var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
		224	var xsize = %d;\
		225	var ysize = %d;\
		226	var canvas_div = document.getElementById(\"canvas_div%d\");\
		227	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;};\
		228	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;};\
7735	schaersvoo	229	function x2px(x){if(use_xlogscale == 0 ){return 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);};};\
		230	function px2x(px){if(use_xlogscale == 0 ){return (Math.round((px(xmax - xmin)/xsize + xmin)precision))/precision;}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);};};\
		231	function px2y(py){if(use_ylogscale == 0 ){return (Math.round((ymax -py(ymax - ymin)/ysize)precision))/precision;}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);};};\
		232	function y2px(y){if(use_ylogscale == 0){return -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);};};\
7729	schaersvoo	233	function scale_x_radius(rx){return parseInt(x2px(rx) - x2px(0));};\
		234	function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};\
		235	function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) ));};\
		236	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) ));};\
		237	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;};\
7735	schaersvoo	238	var xlogbase = 10;\
		239	var ylogbase = 10;\
7729	schaersvoo	240	var use_xlogscale = 0;\
		241	var use_ylogscale = 0;\
		242	var x_strings = null;\
		243	var y_strings = null;\
		244	var use_pan_and_zoom = 0;\
		245	var use_snap_to_grid = 0;\
		246	var xstart = 0;\
		247	var ystart = 0",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	248	/* default add the drag code : nearly always used ...*/
		249	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		250	break;
		251	case XRANGE:
		252	/*
		253	@ xrange xmin,xmax
		254	@ if not given: 0,xsize (eg in pixels)
		255	*/
		256	for(i = 0 ; i<2; i++){
		257	switch(i){
		258	case 0: xmin = get_real(infile,0);break;
		259	case 1: xmax = get_real(infile,1);break;
		260	default: break;
		261	}
		262	}
		263	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		264	fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
		265	break;
		266	case YRANGE:
		267	/*
		268	@ yrange ymin,ymax
		269	@ if not given 0,ysize (eg in pixels)
		270	*/
		271	for(i = 0 ; i<2; i++){
		272	switch(i){
		273	case 0: ymin = get_real(infile,0);break;
		274	case 1: ymax = get_real(infile,1);break;
		275	default: break;
		276	}
		277	}
		278	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		279	fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
		280	break;
		281	case TRANGE:
		282	/*
		283	@ trange tmin,tmax
		284	@ default -2,2
		285	*/
		286	use_parametric = TRUE;
		287	for(i = 0 ; i<2; i++){
		288	switch(i){
		289	case 0: tmin = get_real(infile,0);break;
		290	case 1: tmax = get_real(infile,1);break;
		291	default: break;
		292	}
		293	}
		294	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
		295	break;
		296	case LINEWIDTH:
		297	/*
		298	@ linewidth int
		299	@ default 1
		300	*/
		301	line_width = (int) (get_real(infile,1));
		302	break;
		303	case ARROWHEAD:
		304	/*
		305	@ arrowhead int
		306	@ default 8 (pixels)
		307	*/
		308	arrow_head = (int) (get_real(infile,1));
		309	break;
		310	case CROSSHAIRSIZE:
		311	/*
		312	@ crosshairsize int
		313	@ default 10 (px)
		314	*/
		315	crosshair_size = (int) (get_real(infile,1));
		316	break;
		317	case CROSSHAIR:
		318	/*
		319	@ crosshair x,y,color
		320	@ draw a single crosshair point at (x;y) in color 'color'
		321	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		322	@ may be set draggable / onclick
		323	*/
		324	for(i=0;i<3;i++){
		325	switch(i){
		326	case 0: double_data[0] = get_real(infile,0);break; /* x */
		327	case 1: double_data[1] = get_real(infile,0);break; /* y */
		328	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		329	decimals = find_number_of_digits(precision);
		330	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\"));\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);
		331	click_cnt++;reset();
		332	break;
		333	default:break;
		334	}
		335	}
		336	break;
		337	case CROSSHAIRS:
		338	/*
		339	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		340	@ draw multiple crosshair points at given coordinates in color 'color'
		341	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		342	@ may be set draggable / onclick individually (!)
		343	*/
		344	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		345	fill_color = stroke_color;
		346	i=0;
		347	while( ! done ){ /* get next item until EOL*/
		348	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		349	if(i%2 == 0 ){
		350	double_data[i] = get_real(infile,0); /* x */
		351	}
		352	else
		353	{
		354	double_data[i] = get_real(infile,1); /* y */
		355	}
		356	i++;
		357	}
		358	decimals = find_number_of_digits(precision);
		359	for(c=0 ; c < i-1 ; c = c+2){
		360	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\"));\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);
		361	click_cnt++;
		362	}
		363	reset();
		364	break;
		365	case POINT:
		366	/*
		367	@ point x,y,color
		368	@ draw a single point at (x;y) in color 'color'
		369	@ use command 'linewidth int' to adust size
		370	@ may be set draggable / onclick
		371	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
		372	*/
		373	for(i=0;i<3;i++){
		374	switch(i){
		375	case 0: double_data[0] = get_real(infile,0);break; /* x */
		376	case 1: double_data[1] = get_real(infile,0);break; /* y */
		377	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		378	decimals = find_number_of_digits(precision);
		379	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\"));\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);
		380	click_cnt++;break;
		381	default: break;
		382	}
		383	}
		384	reset();
		385	break;
		386	case POINTS:
		387	/*
7634	schaersvoo	388	@ points color,x1,y1,x2,y2,...,x_n,y_n
7614	schaersvoo	389	@ draw multiple points at given coordinates in color 'color'
		390	@ use command 'linewidth int' to adust size
		391	@ may be set draggable / onclick individually (!)
		392	*/
		393	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		394	fill_color = stroke_color;
		395	i=0;
		396	while( ! done ){ /* get next item until EOL*/
		397	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		398	if(i%2 == 0 ){
		399	double_data[i] = get_real(infile,0); /* x */
		400	}
		401	else
		402	{
		403	double_data[i] = get_real(infile,1); /* y */
		404	}
		405	i++;
		406	}
		407	decimals = find_number_of_digits(precision);
		408	for(c = 0 ; c < i-1 ; c = c+2){
		409	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\"));\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);
		410	click_cnt++;
		411	}
		412	reset();
		413	break;
		414	case SEGMENT:
		415	/*
		416	@ segment x1,y1,x2,y2,color
		417	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		418	@ may be set draggable / onclick
		419	*/
		420	for(i=0;i<5;i++) {
		421	switch(i){
		422	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		423	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		424	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		425	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		426	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		427	decimals = find_number_of_digits(precision);
		428	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\"));\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);
		429	click_cnt++;reset();
		430	break;
		431	default: break;
		432	}
		433	}
		434	break;
		435	case LINE:
		436	/*
		437	@ line x1,y1,x2,y2,color
		438	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		439	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		440	@ may be set draggable / onclick
		441	*/
		442	for(i=0;i<5;i++){
		443	switch(i){
		444	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		445	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		446	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		447	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		448	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		449	if( double_data[10] == double_data[12] ){ /* vertical line*/
		450	double_data[1] = xmin;
		451	double_data[3] = ymax;
		452	double_data[0] = double_data[10];
		453	double_data[2] = double_data[10];
		454	}
		455	else
		456	{
		457	if( double_data[11] == double_data[13] ){ /* horizontal line */
		458	double_data[1] = double_data[11];
		459	double_data[3] = double_data[11];
		460	double_data[0] = ymin;
		461	double_data[2] = xmax;
		462	}
		463	else
		464	{
		465	/* m */
		466	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		467	/* q */
		468	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
		469
		470	/xmin,mxmin+q,xmax,mxmax+q/
		471
		472	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		473	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		474	double_data[0] = xmin;
		475	double_data[2] = xmax;
		476	}
		477	}
		478	decimals = find_number_of_digits(precision);
		479	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\"));\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);
		480	click_cnt++;reset();
		481	break;
		482	}
		483	}
		484	break;
		485	case HLINE:
		486	/*
		487	@ hline x,y,color
		488	@ draw a horizontal line through point (x:y) in color 'color'
		489	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		490	@ may be set draggable / onclick
		491	*/
		492	for(i=0;i<3;i++) {
		493	switch(i){
		494	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		495	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		496	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		497	double_data[3] = double_data[1];
		498	decimals = find_number_of_digits(precision);
		499	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\"));\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);
		500	click_cnt++;reset();
		501	break;
		502	}
		503	}
		504	break;
		505	case VLINE:
		506	/*
		507	@ vline x,y,color
		508	@ draw a vertical line through point (x:y) in color 'color'
		509	@ may be set draggable / onclick
		510	*/
		511	for(i=0;i<3;i++) {
		512	switch(i){
		513	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		514	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		515	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		516	double_data[2] = double_data[0];
		517	decimals = find_number_of_digits(precision);
		518	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\"));\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);
		519	click_cnt++;reset();
		520	break;
		521	}
		522	}
		523	break;
		524	case SQUARE:
		525	/*
		526	@ square x,y,side,color
		527	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		528	@ use command 'fsquare x,y,side,color' for a filled square
		529	@ use command/keyword 'filled' before command 'square x,y,side,color'
		530	@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
		531	@ may be set draggable / onclick
		532	*/
		533	for(i=0;i<5;i++){
		534	switch(i){
		535	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		536	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		537	case 2:double_data[2] = get_real(infile,0);
		538	double_data[3] = double_data[2];
		539	break; /* x-values */
		540	case 3:stroke_color = get_color(infile,1);/* name or hex color */
		541	decimals = find_number_of_digits(precision);
		542	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family);
		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 */
		564	decimals = find_number_of_digits(precision);
		565	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\"));\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);
		566	click_cnt++;reset();
		567	break;
		568	}
		569	}
		570	break;
		571	case RECT:
		572	/*
		573	@ rect x1,y1,x2,y2,color
		574	@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
		575	@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
		576	@ use command 'fillcolor color' before 'frect' to set the fill colour.
		577	@ may be set draggable / onclick
		578	*/
		579	for(i=0;i<5;i++){
		580	switch(i){
		581	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		582	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		583	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		584	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		585	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		586	decimals = find_number_of_digits(precision);
		587	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\"));\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);
		588	click_cnt++;reset();
		589	break;
		590	}
		591	}
		592	break;
		593	case POLYLINE:
		594	/*
		595	@ polyline color,x1,y1,x2,y2...x_n,y_n
		596	@ may be set draggable / onclick
		597	*/
		598	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		599	i=0;
		600	c=0;
		601	while( ! done ){ /* get next item until EOL*/
		602	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		603	for( c = 0 ; c < 2; c++){
		604	if(c == 0 ){
		605	double_data[i] = get_real(infile,0);
		606	i++;
		607	}
		608	else
		609	{
		610	double_data[i] = get_real(infile,1);
		611	i++;
		612	}
		613	}
		614	}
		615	/* draw path : not closed & not filled */
		616	decimals = find_number_of_digits(precision);
		617	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\"));\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);
		618	click_cnt++;reset();
		619	break;
		620	case POLY:
		621	/*
		622	@ poly color,x1,y1,x2,y2...x_n,y_n
		623	@ draw closed polygon
		624	@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
		625	@ may be set draggable / onclick
		626	*/
		627	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		628	i=0;
		629	c=0;
		630	while( ! done ){ /* get next item until EOL*/
		631	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		632	for( c = 0 ; c < 2; c++){
		633	if(c == 0 ){
		634	double_data[i] = get_real(infile,0);
		635	i++;
		636	}
		637	else
		638	{
		639	double_data[i] = get_real(infile,1);
		640	i++;
		641	}
		642	}
		643	}
		644	/* draw path : closed & optional filled */
		645	decimals = find_number_of_digits(precision);
		646	string_length = snprintf(NULL,0,"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\"));\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);
		647	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\"));\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);
		648	click_cnt++;reset();
		649	break;
		650	case ARC:
		651	/*
		652	@ arc xc,yc,width,height,start_angle,end_angle,color
		653	@ can not be set "onclick" or "drag xy"
		654	@ attention: width == height == radius in pixels)
		655	*/
		656	for(i=0;i<7;i++){
		657	switch(i){
		658	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		659	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		660	case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
		661	case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
		662	case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
		663	case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
		664	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		665	/* in Shape library:
		666	x[0] = x[1] = xc
		667	y[0] = y[1] = yc
		668	w[0] = w[1] = radius = width = height
		669	h[0] = start_angle ; h[1] = end_engle
		670	*/
		671	decimals = find_number_of_digits(precision);
		672	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\"));\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);
		673	reset();
		674	break;
		675	}
		676	}
		677	break;
		678	case ELLIPSE:
		679	/*
		680	@ ellipse xc,yc,radius_x,radius_y,color
		681	@ a ellipse with center xc/yc in x/y-range
		682	@ radius_x and radius_y are in pixels
		683	@ may be set draggable / onclick
		684	@ will shrink / expand on zoom out / zoom in
		685	*/
		686	for(i=0;i<5;i++){
		687	switch(i){
		688	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		689	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		690	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
		691	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
		692	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		693	decimals = find_number_of_digits(precision);
		694	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\"));\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);
		695	click_cnt++;reset();
		696	break;
		697	}
		698	}
		699	break;
		700	case DASHTYPE:
		701	/*
		702	@ dashtype int ,int
		703	@ When dashed is set, the objects will be drawn with this dashtyp
		704	@ default value "dashtype 2,2"
		705	*/
		706	for(i=0;i<2;i++){
		707	switch(i){
		708	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		709	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		710	}
		711	}
		712	break;
		713	case CIRCLE:
		714	/*
		715	@ circle xc,yc,width (2*r in pixels),color
		716	@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
		717	@ use command 'fillcolor color' to set the fillcolor
		718	@ may be set draggable / onclick
		719	@ will shrink / expand on zoom out / zoom in
		720	*/
		721	for(i=0;i<4;i++){
		722	switch(i){
		723	case 0: double_data[0] = get_real(infile,0);break; /* x */
		724	case 1: double_data[1] = get_real(infile,0);break; /* y */
		725	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
		726	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		727	decimals = find_number_of_digits(precision);
		728	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\"));\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);
		729	click_cnt++;reset();
		730	break;
		731	}
		732	}
		733	break;
		734	case RAYS:
		735	/*
		736	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		737	@ draw rays in color 'color' and center (xc:yc)
		738	@ may be set draggable or onclick (the complete object, not an indiviual ray !)
		739	*/
		740	stroke_color=get_color(infile,0);
		741	i=0;
		742	while( ! done ){ /* get next until EOL*/
		743	if(i > MAX_INT - 1){canvas_error("to much rays in argument: repeat command multiple times to fit");}
		744	if( i > 3){
		745	double_data[i++] = double_data[0];
		746	double_data[i++] = double_data[1];
		747	}
		748	for(c=0; c<=1 ;c++){ /* switch x2px / y2px */
		749	double_data[i++]= get_double(infile,c,1);
		750	}
		751	}
		752	decimals = find_number_of_digits(precision);
		753	for(c=0; c<i;c = c+4){
		754	click_cnt++;
		755	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\"));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[c+2],decimals,double_data[0],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family);
		756	}
		757	reset();
		758	break;
		759	case ARROW:
		760	/*
		761	@ arrow x1,y1,x2,y2,h,color
		762	@ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		763	@ use command 'linewidth int' to adjust thickness of the arrow
		764	@ may be set draggable / onclick
		765	*/
		766	for(i=0;i<6;i++){
		767	switch(i){
		768	case 0: double_data[0] = get_real(infile,0);break; /* x */
		769	case 1: double_data[1] = get_real(infile,0);break; /* y */
		770	case 2: double_data[2] = get_real(infile,0);break; /* x */
		771	case 3: double_data[3] = get_real(infile,0);break; /* y */
		772	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		773	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		774	decimals = find_number_of_digits(precision);
		775	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\"));\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);
		776	click_cnt++;
		777	reset();
		778	break;
		779	}
		780	}
		781	break;
		782	case ARROW2:
		783	/*
		784	@ arrow2 x1,y1,x2,y2,h,color
		785	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		786	@ use command 'arrowhead int' to adjust the arrow head size
		787	@ use command 'linewidth int' to adjust thickness of the arrow
		788	@ may be set draggable / onclick
		789	*/
		790	for(i=0;i<6;i++){
		791	switch(i){
		792	case 0: double_data[0] = get_real(infile,0);break; /* x */
		793	case 1: double_data[1] = get_real(infile,0);break; /* y */
		794	case 2: double_data[2] = get_real(infile,0);break; /* x */
		795	case 3: double_data[3] = get_real(infile,0);break; /* y */
		796	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		797	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		798	decimals = find_number_of_digits(precision);
		799	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\"));\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);
		800	click_cnt++;reset();
		801	break;
		802	}
		803	}
		804	break;
		805	case PARALLEL:
		806	/*
		807	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
		808	@ can not be set "onclick" or "drag xy"
		809	*/
		810	for( i = 0;i < 8; i++ ){
		811	switch(i){
		812	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		813	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		814	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		815	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		816	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		817	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		818	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		819	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		820	decimals = find_number_of_digits(precision);
		821	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\"));\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);
		822	click_cnt++;reset();
		823	break;
		824	default: break;
		825	}
		826	}
		827	break;
		828	case TRIANGLE:
		829	/*
		830	@triangle x1,y1,x2,y2,x3,y3,color
		831	@may be set draggable / onclic
		832	*/
		833	for(i=0;i<7;i++){
		834	switch(i){
		835	case 0: double_data[0] = get_real(infile,0);break; /* x */
		836	case 1: double_data[1] = get_real(infile,0);break; /* y */
		837	case 2: double_data[2] = get_real(infile,0);break; /* x */
		838	case 3: double_data[3] = get_real(infile,0);break; /* y */
		839	case 4: double_data[4] = get_real(infile,0);break; /* x */
		840	case 5: double_data[5] = get_real(infile,0);break; /* y */
		841	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		842	decimals = find_number_of_digits(precision);
		843	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\"));\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);
		844	click_cnt++;reset();
		845	break;
		846	default: break;
		847	}
		848	}
		849	break;
		850	case LATTICE:
		851	/*
		852	@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
		853	@can not be set "onclick" or "drag xy"
		854	*/
		855	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		856	for( i = 0; i<9; i++){
		857	switch(i){
		858	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		859	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		860	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
		861	case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values -> y-pixels*/
		862	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
		863	case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values -> y-pixels*/
		864	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		865	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		866	case 8: stroke_color=get_color(infile,1);
		867	decimals = find_number_of_digits(precision);
		868	string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",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_translate,translate_x,translate_y);
		869	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		870	snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",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_translate,translate_x,translate_y);
		871	add_to_buffer(tmp_buffer);
		872	break;
		873	default:break;
		874	}
		875	}
		876	reset();
		877	break;
		878	case SNAPTOGRID:
		879	/*
		880	@ snaptogrid
		881	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		882	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
7634	schaersvoo	883	@ if xminor / yminor is defined, the drawing will snap to xminor/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	884	*/
7654	schaersvoo	885	fprintf(js_include_file,"\nuse_snap_to_grid = 1;var snap_x = 1;var snap_y = 1;\nfunction snap_to_x(x){return x2px(snap_x(Math.round((px2x(x))/snap_x)));};function snap_to_y(y){return y2px(snap_y(Math.round((px2y(y))/snap_y)));;};\n");
7614	schaersvoo	886	break;
7663	schaersvoo	887	case USERTEXTAREA_XY:
		888	/*
		889	@ usertextarea_xy
		890	@ keyword
		891	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
		892	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
		893	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		894	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
		895	@ user drawings will not zoom on zooming (or pan on panning)
		896	*/
		897	if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
		898	use_input_xy = 2;
		899	break;
7652	schaersvoo	900	case USERINPUT_XY:
		901	/*
		902	@ userinput_xy
		903	@ keyword
		904	@ to be used in combination with command "userdraw object_type,color"
		905	@ 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)
		906	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		907	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
7653	schaersvoo	908	@ user drawings will not zoom on zooming (or pan on panning)
7652	schaersvoo	909	*/
		910	if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
7663	schaersvoo	911	use_input_xy = 1;
7652	schaersvoo	912	break;
7614	schaersvoo	913	case USERDRAW:
		914	/*
		915	@ userdraw object_type,color
7663	schaersvoo	916	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>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></ul>
7614	schaersvoo	917	@ 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)
		918	@ 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
		919	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
		920	@ 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)
		921	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
		922	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
		923	@ use command "debug" to view the output of javascript funcion read_canvas();
		924	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		925	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
7663	schaersvoo	926	@ may be combined with keyword 'userinput_xy' or
7653	schaersvoo	927	@ 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	928	*/
		929	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
		930	canvas_error("Only one userdraw primitive may be used: read documentation !!");
		931	}
		932	use_userdraw = TRUE;
7653	schaersvoo	933	fprintf(js_include_file,"<!-- begin userdraw mouse events -->\nvar userdraw_x = new Array();var userdraw_y = new Array();var 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	934	draw_type = get_string_argument(infile,0);
		935	stroke_color = get_color(infile,1);
		936	if( strcmp(draw_type,"point") == 0 ){
		937	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		938	if(reply_format < 1 ){reply_format = 8;}
		939	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	940	if(use_input_xy == 1){
		941	add_input_circle(js_include_file,1,1);
		942	add_input_xy(js_include_file,canvas_root_id);
		943	}
7614	schaersvoo	944	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);
		945	}
		946	else
		947	if( strcmp(draw_type,"points") == 0 ){
		948	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		949	if(reply_format < 1 ){reply_format = 8;}
		950	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	951	if(use_input_xy == 1){
		952	add_input_circle(js_include_file,1,2);
		953	add_input_xy(js_include_file,canvas_root_id);
		954	}
7614	schaersvoo	955	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);
		956	}
		957	else
		958	if( strcmp(draw_type,"segment") == 0 ){
		959	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		960	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		961	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	962	if(use_input_xy == 1){
		963	add_input_segment(js_include_file,1);
		964	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		965	}
7614	schaersvoo	966	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		967	}
		968	else
7663	schaersvoo	969	if( strcmp(draw_type,"polyline") == 0 ){
		970	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
		971	if(reply_format < 1){reply_format = 11;}
		972	if( use_input_xy > 0 ){
		973	add_textarea_polyline(js_include_file);
		974	if( use_input_xy == 2 ){
		975	add_textarea_xy(js_include_file,canvas_root_id);
		976	}
		977	else
		978	{
		979	add_input_xy(js_include_file,canvas_root_id);
		980	}
		981	}
		982	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		983	}
		984	else
7614	schaersvoo	985	if( strcmp(draw_type,"segments") == 0 ){
		986	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		987	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		988	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	989	if(use_input_xy == 1){
		990	add_input_segment(js_include_file,2);
		991	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		992	}
7614	schaersvoo	993	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		994	}
		995	else
		996	if( strcmp(draw_type,"circle") == 0 ){
		997	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		998	if(reply_format < 1){reply_format = 10;}
		999	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
7652	schaersvoo	1000	if(use_input_xy == 1){
		1001	add_input_circle(js_include_file,2,1);
		1002	add_input_xyr(js_include_file,canvas_root_id);
		1003	}
7614	schaersvoo	1004	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]);
		1005	}
		1006	else
		1007	if( strcmp(draw_type,"circles") == 0 ){
		1008	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1009	if(reply_format < 1){reply_format = 10;}
		1010	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		1011	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]);
7652	schaersvoo	1012	if(use_input_xy == 1){
		1013	add_input_circle(js_include_file,2,2);
		1014	add_input_xyr(js_include_file,canvas_root_id);
		1015	}
7614	schaersvoo	1016	}
		1017	else
		1018	if(strcmp(draw_type,"crosshair") == 0 ){
		1019	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1020	if(reply_format < 1){reply_format = 8;}
		1021	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1022	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1023	if(use_input_xy == 1){
		1024	add_input_crosshair(js_include_file,1);
		1025	add_input_xy(js_include_file,canvas_root_id);
		1026	}
7614	schaersvoo	1027	}
		1028	else
		1029	if(strcmp(draw_type,"crosshairs") == 0 ){
		1030	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1031	if(reply_format < 1){reply_format = 8;}
		1032	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1033	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1034	if(use_input_xy == 1){
		1035	add_input_crosshair(js_include_file,2);
		1036	add_input_xy(js_include_file,canvas_root_id);
		1037	}
7614	schaersvoo	1038	}
		1039	else
		1040	if(strcmp(draw_type,"freehandline") == 0 ){
		1041	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1042	if(reply_format < 1){reply_format = 6;}
		1043	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	1044	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1045	}
		1046	else
		1047	if(strcmp(draw_type,"freehandlines") == 0 ){
		1048	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1049	if(reply_format < 1){reply_format = 6;}
		1050	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	1051	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1052	}
		1053	else
		1054	if(strcmp(draw_type,"path") == 0 ){
		1055	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1056	if(reply_format < 1){reply_format = 6;}
		1057	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	1058	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1059	}
		1060	else
		1061	if(strcmp(draw_type,"paths") == 0 ){
		1062	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1063	if(reply_format < 1){reply_format = 6;}
		1064	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	1065	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1066	}
		1067	else
		1068	if(strcmp(draw_type,"arrows") == 0 ){
		1069	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1070	if(reply_format < 1){reply_format = 11;}
		1071	add_js_arrows(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
7654	schaersvoo	1072	if(use_input_xy == 1){
		1073	add_input_arrow(js_include_file,2);
		1074	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1075	}
7614	schaersvoo	1076	}
		1077	else
		1078	if(strcmp(draw_type,"arrow") == 0 ){
		1079	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1080	if(reply_format < 1){reply_format = 11;}
		1081	add_js_arrows(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
7654	schaersvoo	1082	if(use_input_xy == 1){
		1083	add_input_arrow(js_include_file,1);
		1084	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1085	}
7614	schaersvoo	1086	}
		1087	else
		1088	if(strcmp(draw_type,"polygon") == 0){
		1089	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1090	if(reply_format < 1){reply_format = 2;}
		1091	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]);
7746	schaersvoo	1092	if( use_input_xy > 0 ){
		1093	add_textarea_polygon(js_include_file);
		1094	if( use_input_xy == 2 ){
		1095	add_textarea_xy(js_include_file,canvas_root_id);
		1096	}
		1097	else
		1098	{
		1099	add_input_xy(js_include_file,canvas_root_id);
		1100	}
		1101	}
7614	schaersvoo	1102	}
		1103	else
		1104	if(strncmp(draw_type,"poly",4) == 0){
		1105	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		1106	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1107	if(reply_format < 1){reply_format = 2;}
		1108	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	1109	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1110	}
		1111	else
		1112	if(strcmp(draw_type,"triangle") == 0){
		1113	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1114	if(reply_format < 1){reply_format = 2;}
		1115	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	1116	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1117	}
		1118	else
		1119	if( strcmp(draw_type,"line") == 0 ){
		1120	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1121	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1122	if(reply_format < 1){reply_format = 11;}
		1123	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1124	if( use_input_xy == 1 ){
		1125	add_textarea_line(js_include_file,1);
		1126	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1127	}
7614	schaersvoo	1128	}
		1129	else
		1130	if( strcmp(draw_type,"lines") == 0 ){
		1131	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1132	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1133	if(reply_format < 1){reply_format = 11;}
		1134	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1135	if( use_input_xy == 1 ){
7746	schaersvoo	1136	add_textarea_line(js_include_file,2);
7747	schaersvoo	1137	add_input_x1y1x2y2(js_include_file,canvas_root_id);
7746	schaersvoo	1138	}
7614	schaersvoo	1139	}
		1140	else
		1141	if( strcmp(draw_type,"rects") == 0){
		1142	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1143	if(reply_format < 1){reply_format = 2;}
		1144	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	1145	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1146	}
		1147	else
		1148	if( strcmp(draw_type,"roundrects") == 0){
		1149	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1150	if(reply_format < 1){reply_format = 2;}
		1151	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	1152	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1153	}
		1154	else
		1155	if( strcmp(draw_type,"rect") == 0){
		1156	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1157	if(reply_format < 1){reply_format = 2;}
		1158	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	1159	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1160	}
		1161	else
		1162	if( strcmp(draw_type,"roundrect") == 0){
		1163	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1164	if(reply_format < 1){reply_format = 2;}
		1165	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	1166	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1167	}
		1168	else
		1169	if( strcmp(draw_type,"text") == 0){
		1170	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1171	if(reply_format < 1){reply_format = 17;}
		1172	add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity,use_rotate,angle,use_translate,translate_x,translate_y);
7652	schaersvoo	1173	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1174	}
		1175	else
		1176	{
		1177	canvas_error("unknown drawtype or typo? ");
		1178	}
		1179	reset();
		1180	break;
		1181	case PLOTSTEPS:
		1182	/*
		1183	@ plotsteps a_number
		1184	@ default 150
		1185	@ use with care !
		1186	*/
		1187	plot_steps = (int) (get_real(infile,1));
		1188	break;
		1189	case FONTSIZE:
		1190	/*
		1191	@fontsize font_size
		1192	@default value 12
		1193	*/
		1194	font_size = (int) (get_real(infile,1));
		1195	break;
		1196	case FONTCOLOR:
		1197	/*
		1198	@fontcolor color
		1199	@color: hexcolor or colorname
		1200	@default: black
		1201	@example usage: x/y-axis text
		1202	*/
		1203	font_color = get_color(infile,1);
		1204	break;
		1205	case ANIMATE:
		1206	/*
		1207	@animate type
		1208	@type may be "point" (nothing else , yet...)
		1209	@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		1210	@will animate a point on the next plot/curve command
		1211	@the curve will not be draw
		1212	@moves repeatedly from xmin to xmax
		1213	*/
		1214	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
		1215	break;
		1216	case CURVE:
		1217	/*
		1218	@curve color,formula(x)
		1219	@plot color,formula(x)
		1220	@use command trange before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1221	@use command "precision" to increase the number of digits of the plotted points
		1222	@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
		1223	@may be set draggable / onclick
		1224	*/
		1225	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1226	use_parametric = FALSE;
		1227	stroke_color = get_color(infile,0);
		1228	char *fun1 = get_string_argument(infile,0);
		1229	char *fun2 = get_string_argument(infile,1);
		1230	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
		1231	use_parametric = FALSE;
		1232	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\"));\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);
		1233	click_cnt++;
		1234	}
		1235	else
		1236	{
		1237	stroke_color = get_color(infile,0);
		1238	char *fun1 = get_string_argument(infile,1);
		1239	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1240	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\"));\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);
		1241	click_cnt++;
		1242	}
		1243	animation_type = 9;/* rest to curve plotting without animation */
		1244	reset();
		1245	break;
		1246	case FLY_TEXT:
		1247	/*
		1248	@ text fontcolor,x,y,font,text_string
		1249	@ font may be described by keywords : giant,huge,normal,small,tiny
		1250	@ use command 'fontsize' to increase base fontsize for the keywords
		1251	@ may be set "onclick" or "drag xy"
		1252	@ backwards compatible with flydraw
		1253	@ unicode supported: text red,0,0,huge,\\u2232
		1254	@ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1255	@ 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 rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
		1256	*/
		1257	for(i = 0; i < 5 ;i++){
		1258	switch(i){
		1259	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		1260	case 1: double_data[0] = get_real(infile,0);break; /* x */
		1261	case 2: double_data[1] = get_real(infile,0);break; /* y */
		1262	case 3: fly_font = get_string_argument(infile,0);
		1263	if(strcmp(fly_font,"giant") == 0){
		1264	font_size = (int)(font_size + 24);
		1265	}
		1266	else
		1267	{
		1268	if(strcmp(fly_font,"huge") == 0){
		1269	font_size = (int)(font_size + 14);
		1270	}
		1271	else
		1272	{
		1273	if(strcmp(fly_font,"large") == 0){
		1274	font_size = (int)(font_size + 6);
		1275	}
		1276	else
		1277	{
		1278	if(strcmp(fly_font,"small") == 0){
		1279	font_size = (int)(font_size - 4);
		1280	if(font_size<0){font_size = 8;}
		1281	}
		1282	}
		1283	}
		1284	}
		1285	break; /* font_size ! */
		1286	case 4:
		1287	temp = get_string_argument(infile,1);
		1288	decimals = find_number_of_digits(precision);
		1289	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,%d,\"%s\",%d,\"%s\"));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family);
		1290	click_cnt++;reset();break;
		1291	default:break;
		1292	}
		1293	}
		1294	break;
		1295	case FLY_TEXTUP:
		1296	/*
		1297	@ textup fontcolor,x,y,font,text_string
		1298	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1299	@ font may be described by keywords : giant,huge,normal,small,tiny
		1300	@ use command 'fontsize' to increase base fontsize for the keywords
		1301	@ backwards compatible with flydraw
		1302	@ unicode supported: textup red,0,0,huge,\\u2232
		1303	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1304	@ 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 rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
		1305	*/
		1306	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1307	for(i = 0; i<5 ;i++){
		1308	switch(i){
		1309	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1310	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1311	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1312	case 3: fly_font = get_string_argument(infile,0);
		1313	if(strcmp(fly_font,"giant") == 0){
		1314	font_size = (int)(font_size + 24);
		1315	}
		1316	else
		1317	{
		1318	if(strcmp(fly_font,"huge") == 0){
		1319	font_size = (int)(font_size + 14);
		1320	}
		1321	else
		1322	{
		1323	if(strcmp(fly_font,"large") == 0){
		1324	font_size = (int)(font_size + 6);
		1325	}
		1326	else
		1327	{
		1328	if(strcmp(fly_font,"small") == 0){
		1329	font_size = (int)(font_size - 4);
		1330	if(font_size<0){font_size = 8;}
		1331	}
		1332	}
		1333	}
		1334	}
		1335	break; /* font_size ! */
		1336	case 4:
		1337	decimals = find_number_of_digits(precision);
		1338	temp = get_string_argument(infile,1);
		1339	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1340	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1341	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1342	add_to_buffer(tmp_buffer);
		1343	break;
		1344	default:break;
		1345	}
		1346	}
		1347	reset();
		1348	break;
		1349	case FONTFAMILY:
		1350	/*
		1351	@ fontfamily font_description
		1352	@ set the font family; for browsers that support it
		1353	@ font_description: Ariel ,Courier, Helvetica etc
		1354	@ 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
		1355	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1356	*/
		1357	font_family = get_string(infile,1);
		1358	break;
		1359	case STRINGUP:
		1360	/*
		1361	@ stringup color,x,y,rotation_degrees,the text string
		1362	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1363	@ unicode supported: stringup red,0,0,45,\\u2232
		1364	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		1365
		1366	*/
		1367	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		1368	for(i=0;i<6;i++){
		1369	switch(i){
		1370	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1371	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1372	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1373	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		1374	case 4: decimals = find_number_of_digits(precision);
		1375	temp = get_string_argument(infile,1);
		1376	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1377	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1378	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1379	add_to_buffer(tmp_buffer);
		1380	break;
		1381	default:break;
		1382	}
		1383	}
		1384	reset();
		1385	break;
		1386	case STRING:
		1387	/*
		1388	@ string color,x,y,the text string
		1389	@ may be set "onclick" or "drag xy"
		1390	@ unicode supported: string red,0,0,\\u2232
		1391	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
		1392	*/
		1393	for(i=0;i<5;i++){
		1394	switch(i){
		1395	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1396	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		1397	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		1398	case 3: decimals = find_number_of_digits(precision);
		1399	temp = get_string_argument(infile,1);
		1400	decimals = find_number_of_digits(precision);
		1401	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,%d,\"%s\",%d,\"%s\"));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family);
		1402	click_cnt++;reset();break;
		1403	break;
		1404	default:break;
		1405	}
		1406	}
		1407	break;
		1408	case MATHML:
		1409	/*
		1410	@ mathml x1,y1,x2,y2,mathml_string
		1411	@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
		1412	@ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1413	@ 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();"
		1414	@ 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....
7653	schaersvoo	1415
7614	schaersvoo	1416	*/
		1417	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1418	for(i=0;i<5;i++){
		1419	switch(i){
		1420	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1421	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1422	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1423	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1424	case 4: decimals = find_number_of_digits(precision);
		1425	if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
		1426	temp = get_string(infile,1);
		1427	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1428	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);
		1429	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1430	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);
		1431	add_to_buffer(tmp_buffer);
		1432	/*
		1433	in case inputs are present , trigger adding the read_mathml()
		1434	if no other reply_format is defined
		1435	note: all other reply types will include a reading of elements with id='mathml'+p)
		1436	*/
		1437	if(strstr(temp,"mathml0") != NULL){
		1438	if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
		1439	}
		1440	break;
		1441	default:break;
		1442	}
		1443	}
		1444	reset();
		1445	break;
		1446	case HTTP:
		1447	/*
		1448	@http x1,y1,x2,y2,http://some_adress.com
		1449	@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
		1450	@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1451	@can not be 'set onclick' or 'drag xy'
		1452	*/
		1453	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
		1454	for(i=0;i<5;i++){
		1455	switch(i){
		1456	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1457	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1458	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1459	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1460	case 4: decimals = find_number_of_digits(precision);
		1461	temp = get_string(infile,1);
		1462	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1463	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);
		1464	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1465	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);
		1466	add_to_buffer(tmp_buffer);
		1467	break;
		1468	}
		1469	}
		1470	reset();
		1471	break;
		1472	case HTML:
		1473	/*
		1474	@ html x1,y1,x2,y2,html_string
		1475	@ all tags are allowed
		1476	@ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1477	@ 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.
		1478
		1479	note: uses the same code as 'mathml'
		1480	*/
		1481	break;
		1482	case X_AXIS_STRINGS:
		1483	/*
		1484	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1485	@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1486	@ use these x-axis values in stead of default xmin...xmax
		1487	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1488	@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
		1489	@ 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
		1490	@ 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
		1491	*/
		1492	temp = get_string(infile,1);
		1493	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1494	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1495	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		1496	use_axis_numbering = 1;
		1497	break;
		1498	case Y_AXIS_STRINGS:
		1499	/*
		1500	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1501	@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1502	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1503	@ use these y-axis values in stead of default ymin...ymax
		1504	@ 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
		1505	*/
		1506	temp = get_string(infile,1);
		1507	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1508	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1509	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		1510	use_axis_numbering = 1;
		1511	break;
		1512
		1513	case AXIS_NUMBERING:
		1514	/*
		1515	@ axisnumbering
		1516	@ keyword, no aguments required
		1517	*/
		1518	use_axis_numbering = 1;
		1519	break;
		1520	case AXIS:
		1521	/*
		1522	@ axis
		1523	@ keyword, no aguments required
		1524
		1525	*/
		1526	use_axis = TRUE;
		1527	break;
7654	schaersvoo	1528	case SGRAPH:
		1529	/*
		1530	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		1531	@ primitive implementation of a 'broken scale' graph...
		1532	@ not very versatile.
		1533	@ 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
		1534	*/
		1535	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
		1536	for(i = 0 ; i < 8 ;i++){
		1537	switch(i){
		1538	case 0:double_data[0] = get_real(infile,0);break;
		1539	case 1:double_data[1] = get_real(infile,0);break;
		1540	case 2:double_data[2] = get_real(infile,0);break;
		1541	case 3:double_data[3] = get_real(infile,0);break;
		1542	case 4:int_data[0] = (int)(get_real(infile,0));break;
		1543	case 5:int_data[1] = (int)(get_real(infile,0));break;
		1544	case 6:stroke_color = get_color(infile,0);break;
		1545	case 7:font_color = get_color(infile,1);
7658	schaersvoo	1546	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	1547	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7658	schaersvoo	1548	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	1549	add_to_buffer(tmp_buffer);
		1550	break;
		1551	default:break;
		1552	}
		1553	}
		1554	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
		1555	break;
7614	schaersvoo	1556	case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
		1557	/*
		1558	@ grid step_x,step_y,gridcolor
		1559	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1560	@ 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	1561	@ 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	1562	@ can not be set "onclick" or "drag xy"
		1563	@ 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')
		1564	@ 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')
		1565	@ 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')
		1566	*/
7729	schaersvoo	1567	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
7614	schaersvoo	1568	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		1569	for(i=0;i<4;i++){
		1570	switch(i){
		1571	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		1572	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		1573	case 2:
		1574	if( use_axis == TRUE ){
		1575	stroke_color = get_color(infile,0);
		1576	done = FALSE;
		1577	int_data[0] = (int) (get_real(infile,0));/* xminor */
		1578	int_data[1] = (int) (get_real(infile,0));/* yminor */
		1579	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		1580	fill_color = get_color(infile,1); /* used as axis_color*/
		1581	}
		1582	else
		1583	{
		1584	int_data[0] = 1;
		1585	int_data[1] = 1;
		1586	stroke_color = get_color(infile,1);
		1587	fill_color = stroke_color;
		1588	}
		1589	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	1590	/* set snap_x snap_y values in pixels */
7647	schaersvoo	1591	fprintf(js_include_file,"snap_x = %f;snap_y = %f\n;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
7614	schaersvoo	1592	/* 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_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){ */
		1593
		1594	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,[%d,%d],%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_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1595	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1596	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,[%d,%d],%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_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1597	add_to_buffer(tmp_buffer);
		1598	break;
		1599	}
		1600	}
		1601	reset();
		1602	break;
		1603	case OPACITY:
		1604	/*
		1605	@ opacity 0-255,0-255
		1606	@
		1607	*/
		1608	for(i = 0 ; i<2;i++){
		1609	switch(i){
		1610	case 0: double_data[0]=(int)(get_real(infile,0));break;
		1611	case 1: double_data[1]=(int)(get_real(infile,1));break;
		1612	default: break;
		1613	}
		1614	}
		1615	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 ? */
		1616	stroke_opacity = (double) (0.0039215double_data[0]);/ 0.0 - 1.0 */
		1617	fill_opacity = (double) (0.0039215double_data[1]);/ 0.0 - 1.0 */
		1618	break;
		1619	case ROTATE:
		1620	/*
		1621	@rotate rotation_angle
		1622	@
		1623	*/
		1624	use_rotate = TRUE;
		1625	use_translate = TRUE;
		1626	translate_x = x2px(0);
		1627	translate_y = y2px(0);
		1628	angle = get_real(infile,1);
		1629	break;
		1630	case KILLTRANSLATION:
		1631	/*
		1632	killtranslation
		1633	*/
		1634	break;
		1635	case TRANSLATION:
		1636	/*
		1637	@translation tx,ty
		1638	@
		1639	*/
		1640	use_translate = TRUE;
		1641	translate_x = get_real(infile,0);
		1642	translate_y = get_real(infile,1);
		1643	break;
		1644	case DASHED:
		1645	/*
		1646	@ keyword "dashed"
		1647	@ next object will be drawn with a dashed line
		1648	@ change dashing scheme by using command "dashtype int,int)
		1649	*/
		1650	use_dashed = TRUE;
		1651	break;
		1652	case FILLED:
		1653	/*
		1654	@ keyword "filled"
		1655	@ the next 'fillable' object (only) will be filled
		1656	@ use command "fillcolor color" to set fillcolor
		1657	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		1658	@ 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 !
		1659	*/
		1660	use_filled = TRUE;
		1661	break;
		1662	case STYLE:
		1663	/*
		1664	@highlight color,opacity,linewidth
		1665	@ NOT IMPLEMENTED
		1666	@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
		1667	*/
		1668	break;
		1669	case FILLCOLOR:
		1670	/*
		1671	@ fillcolor colorname or #hex
		1672	@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		1673	@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		1674	*/
		1675	fill_color = get_color(infile,1);
		1676	break;
		1677	case STROKECOLOR:
		1678	/*
		1679	@ strokecolor colorname or #hex
		1680	@ to be used for commands that do not supply a color argument (like command 'linegraph')
		1681	*/
		1682	stroke_color = get_color(infile,1);
		1683	break;
		1684	case BGIMAGE:
		1685	/*
		1686	@bgimage image_location
		1687	@use an image as background .<br />(we use the background of 'canvas_div' )
		1688	@the background image will be resized to match "width = xsize" and "height = ysize"
		1689	*/
		1690	URL = get_string(infile,1);
		1691	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);
		1692	break;
		1693	case BGCOLOR:
		1694	/*
		1695	@bgcolor colorname or #hex
		1696	@use this color as background of the "div" containing the canvas(es)
		1697	*/
		1698	/* [255,255,255]*/
		1699	bgcolor = get_string(infile,1);
		1700	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		1701	int found = 0;
		1702	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		1703	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		1704	bgcolor = colors[i].hex;
		1705	found = 1;
		1706	break;
		1707	}
		1708	}
		1709	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		1710	}
		1711	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		1712	break;
		1713	case COPY:
		1714	/*
		1715	@ copy x,y,x1,y1,x2,y2,[filename URL]
		1716	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		1717	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
		1718	@ [filename] is the URL of the image
		1719	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1720	@ 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
		1721	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1722
		1723	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1724	draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
		1725	*/
		1726	for(i = 0 ; i<7;i++){
		1727	switch(i){
		1728	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		1729	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		1730	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		1731	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		1732	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		1733	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		1734	case 6: URL = get_string(infile,1);
		1735	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		1736	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		1737	if( drag_type > -1 ){
		1738	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1739	if(reply_format < 1 ){reply_format = 20;}
		1740	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);
		1741	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1742	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);
		1743	drag_type = -1;
		1744	ext_img_cnt++;
		1745	}
		1746	else
		1747	{
		1748	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1749	/*
		1750	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
		1751	*/
		1752	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]);
		1753	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1754	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]);
		1755	}
		1756	add_to_buffer(tmp_buffer);
		1757	break;
		1758	default: break;
		1759	}
		1760	}
		1761	reset();
		1762	break;
		1763	/*
		1764	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1765	img Specifies the image, canvas, or video element to use
		1766	sx The x coordinate where to start clipping : x1 = int_data[0]
		1767	sy The y coordinate where to start clipping : x2 = int_data[1]
		1768	swidth The width of the clipped image : int_data[2] - int_data[0]
		1769	sheight The height of the clipped image : int_data[3] - int_data[1]
		1770	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		1771	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		1772	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		1773	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		1774	*/
		1775	case COPYRESIZED:
		1776	/*
		1777	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
		1778	@ 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
		1779	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		1780	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1781	@ 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
		1782	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1783	*/
		1784	for(i = 0 ; i<9;i++){
		1785	switch(i){
		1786	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		1787	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		1788	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		1789	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		1790	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		1791	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		1792	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		1793	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		1794	case 8: URL = get_string(infile,1);
		1795	if( drag_type > -1 ){
		1796	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1797	if(reply_format < 1 ){reply_format = 20;}
		1798	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);
		1799	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1800	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);
		1801	drag_type = -1;
		1802	ext_img_cnt++;
		1803	}
		1804	else
		1805	{
		1806	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1807	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]);
		1808	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1809	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]);
		1810	}
		1811	add_to_buffer(tmp_buffer);
		1812	default: break;
		1813	}
		1814	}
		1815	reset();
		1816	break;
		1817	case BUTTON:
		1818	/*
		1819	button x,y,value
		1820	*/
		1821	break;
		1822	case INPUTSTYLE:
		1823	/*
		1824	@ inputstyle style_description
		1825	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		1826	*/
		1827	input_style = get_string(infile,1);
		1828	break;
		1829	case INPUT:
		1830	/*
		1831	@ input x,y,size,editable,value
		1832	@ to set inputfield "readonly", use editable = 0
		1833	@ only active inputfields (editable = 1) will be read with read_canvas();
		1834	@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
		1835	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1836	*/
		1837	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
		1838	for(i = 0 ; i<5;i++){
		1839	switch(i){
		1840	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		1841	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		1842	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		1843	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1844	case 4:
		1845	temp = get_string_argument(infile,1);
		1846	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);
		1847	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1848	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);
		1849	add_to_buffer(tmp_buffer);
		1850	input_cnt++;break;
		1851	default: break;
		1852	}
		1853	}
		1854	if(reply_format < 1 ){reply_format = 15;}
		1855	reset();
		1856	break;
		1857	case TEXTAREA:
		1858	/*
		1859	@ textarea x,y,cols,rows,readonly,value
		1860	@ may be further controlled by "inputstyle"
		1861	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1862	*/
		1863	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
		1864	for(i = 0 ; i<6;i++){
		1865	switch(i){
		1866	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		1867	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		1868	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		1869	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		1870	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1871	case 5: temp = get_string_argument(infile,1);
		1872	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);
		1873	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1874	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);
		1875	add_to_buffer(tmp_buffer);
		1876	input_cnt++;break;
		1877	default: break;
		1878	}
		1879	}
		1880	if(reply_format < 1 ){reply_format = 15;}
		1881	reset();
		1882	break;
		1883	case MOUSE_PRECISION:
		1884	/*
		1885	@ precision int
		1886	@ 10 = 1 decimal ; 100 = 2 decimals etc
		1887	@ may be used / changed before every object
		1888	*/
		1889	precision = (int) (get_real(infile,1));
		1890	break;
		1891	case ZOOM:
		1892	/*
		1893	@ zoom button_color
		1894	@ introduce a controlpanel at the lower right corner
		1895	@ 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
		1896	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		1897	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
		1898	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		1899	@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
		1900	@ 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 !!
		1901	*/
7653	schaersvoo	1902	fprintf(js_include_file,"use_pan_and_zoom = 1;");
7614	schaersvoo	1903	if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
		1904	/* we use BG_CANVAS (0) */
		1905	stroke_color = get_color(infile,1);
7653	schaersvoo	1906	string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	1907	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7653	schaersvoo	1908	snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	1909	add_to_buffer(tmp_buffer);
		1910	done = TRUE;
		1911	break;
		1912	case ONCLICK:
		1913	/*
		1914	@ onclick
		1915	@ keyword, no arguments
		1916	@ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
		1917	@ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
		1918	@ NOTE: not all objects may be set clickable
		1919	*/
		1920
		1921	onclick = 1;
		1922	break;
		1923	case DRAG:
		1924	/*
		1925	@ drag [x][y][xy]
		1926	@ the next object will be draggable in x / y / xy direction
		1927	@ the displacement can be read by 'javascript:read_dragdrop();'
		1928	@ 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.
		1929	@ 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 !!
		1930	*/
		1931	temp = get_string(infile,1);
		1932	if(strstr(temp,"xy") != NULL ){
		1933	drag_type = 0;
		1934	}
		1935	else
		1936	{
		1937	if(strstr(temp,"x") != NULL ){
		1938	drag_type = 1;
		1939	}
		1940	else
		1941	{
		1942	drag_type = 2;
		1943	}
		1944	}
		1945	onclick = 2;
		1946	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
		1947	break;
		1948	case BLINK:
		1949	/*
		1950	@ blink time(seconds)
		1951	@ NOT IMPLEMETED -YET
		1952	*/
		1953	break;
		1954	case MOUSE:
		1955	/*
		1956	@ mouse color,fontsize
		1957	@ will display the cursor coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
		1958	*/
		1959	use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
		1960	stroke_color = get_color(infile,0);
		1961	font_size = (int) (get_real(infile,1));
		1962	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
		1963	break;
		1964	case INTOOLTIP:
		1965	/*
		1966	@ intooltip link_text
		1967	@ link_text is a single line (span-element)
		1968	@ link_text may also be an image URL http://some_server/images/my_image.png
		1969	@ link_text may contain HTML markup
		1970	@ the canvas will be displayed in a tooltip on 'link_text'
		1971	@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
		1972	*/
7652	schaersvoo	1973	if(use_input_xy == TRUE){canvas_error("intooltip can not be combined with userinput_xy command");}
7614	schaersvoo	1974	use_tooltip = TRUE;
		1975	tooltip_text = get_string(infile,1);
		1976	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		1977	break;
		1978	case AUDIO:
		1979	/*
		1980	@ audio x,y,w,h,loop,visible,audiofile location
		1981	@ x,y : left top corner of audio element (in xrange / yrange)
		1982	@ w,y : width and height in pixels
		1983	@ loop : 0 or 1 ( 1 = loop audio fragment)
		1984	@ visible : 0 or 1 (1 = show controls)
		1985	@ audio format may be in .mp3 or .ogg
		1986	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		1987	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		1988	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		1989	@ 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 />
		1990	*/
		1991	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		1992	for(i=0;i<7;i++){
		1993	switch(i){
		1994	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		1995	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		1996	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		1997	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		1998	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		1999	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
		2000	case 6:
		2001	temp = get_string(infile,1);
		2002	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		2003	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		2004	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);
		2005	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2006	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);
		2007	add_to_buffer(tmp_buffer);
		2008	break;
		2009	default:break;
		2010	}
		2011	}
		2012	reset();
		2013	break;
		2014	case VIDEO:
		2015	/*
		2016	@ video x,y,w,h,videofile location
		2017	@ x,y : left top corner of audio element (in xrange / yrange)
		2018	@ w,y : width and height in pixels
		2019	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		2020	@ video format may be in *.mp4 (todo:other formats)
		2021	*/
		2022	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
		2023	for(i=0;i<5;i++){
		2024	switch(i){
		2025	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2026	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2027	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2028	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2029	case 4: temp = get_string(infile,1);
		2030	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);
		2031	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2032	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);
		2033	add_to_buffer(tmp_buffer);
		2034	break;
		2035	default:break;
		2036	}
		2037	}
		2038	reset();
		2039	break;
		2040	case HATCHFILL:
		2041	/*
		2042	@ hatchfill x0,y0,dx,dy,color
		2043	@ x0,y0 in xrange / yrange
		2044	@ distances dx,dy in pixels
		2045	*/
		2046	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		2047	for(i=0;i<5;i++){
		2048	switch(i){
		2049	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2050	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2051	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2052	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2053	case 4: stroke_color = get_color(infile,1);
		2054	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2055	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);
		2056	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2057	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);
		2058	add_to_buffer(tmp_buffer);
		2059	break;
		2060	default:break;
		2061	}
		2062	}
		2063	reset();
		2064	break;
7647	schaersvoo	2065	case DIAMONDFILL:
		2066	/*
		2067	@ diamondfill x0,y0,dx,dy,color
		2068	@ x0,y0 in xrange / yrange
		2069	@ distances dx,dy in pixels
		2070	*/
		2071	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
		2072	for(i=0;i<5;i++){
		2073	switch(i){
		2074	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2075	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2076	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2077	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2078	case 4: stroke_color = get_color(infile,1);
		2079	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2080	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);
		2081	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2082	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);
		2083	add_to_buffer(tmp_buffer);
		2084	break;
		2085	default:break;
		2086	}
		2087	}
		2088	reset();
		2089	break;
7614	schaersvoo	2090	case GRIDFILL:
		2091	/*
		2092	@ gridfill x0,y0,dx,dy,color
		2093	@ x0,y0 in xrange / yrange
		2094	@ distances dx,dy in pixels
		2095	*/
		2096	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		2097	for(i=0;i<5;i++){
		2098	switch(i){
		2099	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2100	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2101	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2102	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2103	case 4: stroke_color = get_color(infile,1);
		2104	/* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2105	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);
		2106	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2107	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);
		2108	add_to_buffer(tmp_buffer);
		2109	break;
		2110	default:break;
		2111	}
		2112	}
		2113	reset();
		2114	break;
		2115	case DOTFILL:
		2116	/*
		2117	@ dotfill x0,y0,dx,dy,color
		2118	@ x0,y0 in xrange / yrange
		2119	@ distances dx,dy in pixels
		2120	@ radius of dots is linewidth
		2121	*/
		2122	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
		2123	for(i=0;i<5;i++){
		2124	switch(i){
		2125	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2126	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2127	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2128	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2129	case 4: stroke_color = get_color(infile,1);
		2130	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
		2131	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);
		2132	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2133	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);
		2134	add_to_buffer(tmp_buffer);
		2135	break;
		2136	default:break;
		2137	}
		2138	}
		2139	reset();
		2140	break;
		2141	case IMAGEFILL:
		2142	/*
		2143	@ imagefill dx,dy,image_url
		2144	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2145	@ After pattern filling ,the fill-color should be reset !
		2146	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2147	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		2148	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		2149	@ if dx,dy is larger than the image, the whole image will be background to the next object.
		2150	*/
		2151	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		2152	for(i=0 ;i < 3 ; i++){
		2153	switch(i){
		2154	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2155	case 1:int_data[1] = (int) (get_real(infile,0));break;
		2156	case 2: URL = get_string_argument(infile,1);
		2157	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);
		2158	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2159	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);
		2160	add_to_buffer(tmp_buffer);
		2161	break;
		2162	}
		2163	}
		2164	break;
		2165	case FILLTOBORDER:
		2166	/*
		2167	@ filltoborder x,y,bordercolor,color
		2168	@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
		2169	@ any other color will not act as border to the bucket fill
		2170	@ use this command after all boundary objects are declared.
		2171	@ 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..
		2172	*/
		2173	for(i=0 ;i < 4 ; i++){
		2174	switch(i){
		2175	case 0:double_data[0] = get_real(infile,0);break;
		2176	case 1:double_data[1] = get_real(infile,0);break;
		2177	case 2:bgcolor = get_color(infile,0);break;
		2178	case 3:fill_color = get_color(infile,1);
		2179	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2180	js_function[DRAW_FILLTOBORDER] = 1;
		2181	add_js_filltoborder(js_include_file,canvas_root_id);
		2182	}
		2183	decimals = find_number_of_digits(precision);
		2184	string_length = snprintf(NULL,0, "filltoborder(%.f,%.f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
		2185	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2186	snprintf(tmp_buffer,string_length,"filltoborder(%.f,%.f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
		2187	add_to_buffer(tmp_buffer);
		2188	break;
		2189	default:break;
		2190	}
		2191	}
		2192	break;
		2193	case FLOODFILL:
		2194	/*
		2195	@ floodfill x,y,color
		2196	@ alternative syntax: fill x,y,color
		2197	@ fill the region of point (x:y) with color 'color'
		2198	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		2199	@ use this command after all boundary objects are declared.
		2200	@ Use command 'clickfill,color' for user click driven flood fill.
		2201	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2202	@ 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..
		2203	*/
		2204	for(i=0 ;i < 4 ; i++){
		2205	switch(i){
		2206	case 0:double_data[0] = get_real(infile,0);break;
		2207	case 1:double_data[1] = get_real(infile,0);break;
		2208	case 2:fill_color = get_color(infile,1);
		2209	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2210	js_function[DRAW_FLOODFILL] = 1;
		2211	add_js_floodfill(js_include_file,canvas_root_id);
		2212	}
		2213	decimals = find_number_of_digits(precision);/floodfill(interaction,x,y,[R,G,B,A]) /
		2214	string_length = snprintf(NULL,0, "floodfill(0,%.f,%.f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
		2215	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2216	snprintf(tmp_buffer,string_length,"floodfill(0,%.f,%.f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
		2217	add_to_buffer(tmp_buffer);
		2218	break;
		2219	default:break;
		2220	}
		2221	}
		2222	break;
		2223	case CLICKFILLMARGE:
		2224	clickfillmarge = (int) (get_real(infile,1));
		2225	break;
		2226	/*
		2227	@ clickfillmarge int
		2228	@ default 20 (pixels)
		2229	@ 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[])
		2230	*/
		2231	case CLICKFILL:
		2232	/*
		2233	@ clickfill fillcolor
		2234	@ user left mouse click will floodfill the area with fillcolor
		2235	@ multiple areas may be coloured
		2236	@ 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)
		2237	@ the answer will be read as the (x:y) click coordinates per coloured area
		2238	@ background color of main div may be set by using command "bgcolor color"
		2239	@ may not be combined with command "userdraw"
		2240	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2241	*/
		2242	fill_color = get_color(infile,1);
		2243	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2244	js_function[DRAW_FLOODFILL] = 1;
		2245	add_js_floodfill(js_include_file,canvas_root_id);
		2246	}
7653	schaersvoo	2247	fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;var userdraw_x = new Array();var 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);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));
7614	schaersvoo	2248	add_read_canvas(1);
		2249	break;
		2250	case SETPIXEL:
		2251	/*
		2252	@ setpixel x,y,color
		2253	@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
		2254	@ pixels can not be dragged or clicked
		2255	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2256	*/
		2257	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2258	for(i=0;i<3;i++){
		2259	switch(i){
		2260	case 0: double_data[0] = get_real(infile,0); break; /* x */
		2261	case 1: double_data[1] = get_real(infile,0); break; /* y */
		2262	case 2: stroke_color = get_color(infile,1);
		2263	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2264	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2265	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2266	add_to_buffer(tmp_buffer);
		2267	break;
		2268	default:break;
		2269	}
		2270	}
		2271	reset();
		2272	break;
		2273	case PIXELSIZE:
		2274	/*
		2275	@ pixelsize int
		2276	@ in case you want to deviate from default pixelsize = 1...
		2277	*/
		2278	pixelsize = (int) get_real(infile,1);
		2279	break;
		2280	case PIXELS:
		2281	/*
		2282	@ pixels color,x1,y1,x2,y2,x3,y3...
		2283	@ Draw "points" with diameter 1 pixel
		2284	@ pixels can not be dragged or clicked
		2285	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2286	*/
		2287	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2288	stroke_color=get_color(infile,0);
		2289	i=0;
		2290	c=0;
		2291	while( ! done ){ /* get next item until EOL*/
		2292	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2293	for( c = 0 ; c < 2; c++){
		2294	if(c == 0 ){
		2295	double_data[i] = get_real(infile,0);
		2296	i++;
		2297	}
		2298	else
		2299	{
		2300	double_data[i] = get_real(infile,1);
		2301	i++;
		2302	}
		2303	}
		2304	}
		2305	decimals = find_number_of_digits(precision);
		2306	/* double_xy2js_array(double xy[],int len,int decimals) /
		2307	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2308	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2309	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2310	add_to_buffer(tmp_buffer);
		2311	break;
		2312	case DEBUG:
		2313	/*
		2314	@ debug
		2315	@ keyword, no arguments
		2316	@ use as first command (before 'size')
		2317	@ will show a few buttons to read_canvas(); read_mathml(); and read_dragdrop();
		2318	@ only to be used in a single canvasdraw instance <br />or in case of multiple canvasdraw images , only the last image
		2319	*/
		2320	debug = 1;
		2321	fprintf(stdout,"\n\
		2322	<!-- THIS IS JUST FOR DEBUGGING ANSWER TYPES IN A SINGLE CANVASDRAW INSTANCE -->\n\
		2323	<input type=\"button\" onclick=\"javascript:alert(read_canvas());\" value=\"read_canvas()\" />\n\
		2324	<input type=\"button\" onclick=\"javascript:alert(read_mathml());\" value=\"read_mathml()\" />\n\
		2325	<input type=\"button\" onclick=\"javascript:alert(read_dragdrop());\" value=\"read_dragdrop()\" />\n");
		2326	done = TRUE;
		2327
		2328	case REPLYFORMAT:
		2329	/*
		2330	@ replyformat number
		2331	@ default values should be fine !
		2332	@ use command "debug" to check return values of javascript function read_canvas();
		2333	@ 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 = retruns 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</ul>
		2334	@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
		2335	*/
		2336	reply_format = (int) get_real(infile,1);
		2337	break;
		2338	case LEGENDCOLORS:
		2339	/*
		2340	@ legendcolors color1:color2:color3:...:color_n
		2341	@ will be used to colour a legend
		2342	@ make sure the number of colours match the number of legend items
		2343	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
		2344	*/
		2345	temp = get_string(infile,1);
		2346	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2347	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2348	break;
		2349	case LEGEND:
		2350	/*
		2351	@ legend string1:string2:string3....string_n
		2352	@ will be used to create a legend for a graph
		2353	@ also see command 'piechart'
		2354	*/
		2355	temp = get_string(infile,1);
		2356	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2357	fprintf(js_include_file,"var legend%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2358	break;
		2359	case XLABEL:
		2360	/*
		2361	@ xlabel some_string
		2362	@ will be used to create a label for the x-axis (label is in quadrant I)
		2363	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2364	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2365	*/
		2366	temp = get_string(infile,1);
7653	schaersvoo	2367	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7614	schaersvoo	2368	break;
		2369	case YLABEL:
		2370	/*
		2371	@ ylabel some_string
		2372	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
		2373	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2374	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2375	*/
		2376	temp = get_string(infile,1);
7653	schaersvoo	2377	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	2378	break;
		2379	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		2380	/*
		2381	@ linegraph x1:y1;x2:y2...x_n:y;2
		2382	@ will plot your data in a graph
		2383	@ may only to be used together with command 'grid'
		2384	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2385	@ use command 'legend' to provide an optional legend in right-top-corner
		2386	@ also see command 'piechart'
		2387	@ multiple linegraphs may be used in a single plot
		2388	@ <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>
		2389	*/
		2390	temp = get_string(infile,1);
		2391	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2392	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	2393	linegraph_cnt++;
		2394	reset();
		2395	break;
		2396	case CLOCK:
		2397	/*
		2398	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
		2399	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		2400	@ 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
		2401	@ 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>
		2402	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		2403	@ no combinations with other reply_types allowed, for now
		2404	@ if command 'debug' is set, 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
		2405	*/
		2406	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		2407
		2408	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		2409	for(i=0;i<9;i++){
		2410	switch(i){
		2411	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		2412	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		2413	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		2414	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		2415	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		2416	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
		2417	case 6:
		2418	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 */
		2419	case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
		2420	switch(int_data[7]){
		2421	default:break;
		2422	case 1 :if(clock_cnt == 0){
		2423	if( reply_format == 0 ){
		2424	reply_format = 18; /* user sets clock */
		2425	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");
		2426	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2427	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");
		2428	add_to_buffer(tmp_buffer);
		2429	}
		2430	else
		2431	{
		2432	canvas_error("interactive clock may not be used together with other reply_types...");
		2433	}
		2434	}
		2435	if(debug == 1 ){
		2436	fprintf(stdout,"<br /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S-\" /><br />",clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt);
		2437	}
		2438	break;
		2439	case 2 :if( reply_format == 0 ){
		2440	reply_format = 19; /* "onclick */
		2441	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 = 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 = 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 ");
		2442	}
		2443	else
		2444	{
		2445	if( reply_format != 19){
		2446	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		2447	}
		2448	}
		2449	break;
		2450	}
		2451	break;
		2452	case 8:
		2453	temp = get_string(infile,1);
		2454	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		2455	if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
		2456	string_length = snprintf(NULL,0,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		2457	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2458	snprintf(tmp_buffer,string_length,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		2459	add_to_buffer(tmp_buffer);
		2460	clock_cnt++;
		2461	break;
		2462	default:break;
		2463	}
		2464	}
		2465	break;
		2466	case BARCHART:
		2467	/*
		2468	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		2469	@ will be used to create a legend for bar graph
		2470	@ may only to be used together with command 'grid'
		2471	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2472	@ use command 'legend' to provide an optional legend in right-top-corner
		2473	@ also see command 'piechart'
		2474	*/
		2475	temp = get_string(infile,1);
		2476	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2477	fprintf(js_include_file,"var barchart%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2478	reset();
		2479	break;
		2480	case PIECHART:
		2481	/*
		2482	@ piechart xc,yc,radius,'data+colorlist'
		2483	@ (xc : yc) center of circle diagram in xrange/yrange
		2484	@ radius in pixels
		2485	@ 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
		2486	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		2487	@ the number of colors must match the number of data.
		2488	@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
		2489	@ 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...
		2490	*/
		2491	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
		2492	for(i=0;i<5;i++){
		2493	switch(i){
		2494	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2495	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2496	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		2497	case 3: temp = get_string(infile,1);
		2498	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
		2499	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,font_size,font_family);
		2500	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2501	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,font_size,font_family);
		2502	add_to_buffer(tmp_buffer);
		2503	break;
		2504	default:break;
		2505	}
		2506	}
		2507	reset();
		2508	break;
		2509	case STATUS:
		2510	fprintf(js_include_file,"\nstatus=\"waiting\";\n");
		2511	break;
7735	schaersvoo	2512	case XLOGBASE:
7729	schaersvoo	2513	/*
7735	schaersvoo	2514	@ xlogbase number
		2515	@ sets the logbase number for the x-axis
7729	schaersvoo	2516	@ default value 10
7735	schaersvoo	2517	@ use together with commands xlogscale / xylogscale
7729	schaersvoo	2518	*/
7735	schaersvoo	2519	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7729	schaersvoo	2520	break;
7735	schaersvoo	2521	case YLOGBASE:
		2522	/*
		2523	@ ylogbase number
		2524	@ sets the logbase number for the y-axis
		2525	@ default value 10
		2526	@ use together with commands ylogscale / xylogscale
		2527	*/
		2528	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		2529	break;
7614	schaersvoo	2530	case XLOGSCALE:
		2531	/*
7735	schaersvoo	2532	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		2533	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2534	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		2535	@ the linewidth is set using command 'linewidth int'
		2536	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2537	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
7739	schaersvoo	2538	@ 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	2539	@ note: the complete canvas will be used for the 'log paper'
		2540	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2541	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2542	@ 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')
		2543	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2544	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	2545	*/
7735	schaersvoo	2546	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2547	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		2548	for(i=0;i<4;i++){
		2549	switch(i){
		2550	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2551	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2552	case 2: stroke_color = get_color(infile,0); break;
		2553	case 3: fill_color = get_color(infile,1);
7739	schaersvoo	2554	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%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]);
7735	schaersvoo	2555	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2556	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%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]);
7735	schaersvoo	2557	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		2558	add_to_buffer(tmp_buffer);
		2559	break;
		2560	default:break;
		2561	}
		2562	}
7614	schaersvoo	2563	break;
		2564	case YLOGSCALE:
7729	schaersvoo	2565	/*
		2566	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		2567	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2568	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		2569	@ the linewidth is set using command 'linewidth int'
		2570	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	2571	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
7739	schaersvoo	2572	@ 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>
7729	schaersvoo	2573	@ note: the complete canvas will be used for the 'log paper'
		2574	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2575	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2576	@ 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	2577	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2578	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	2579	*/
		2580	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2581	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		2582	for(i=0;i<4;i++){
		2583	switch(i){
		2584	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2585	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2586	case 2: stroke_color = get_color(infile,0); break;
		2587	case 3: fill_color = get_color(infile,1);
7739	schaersvoo	2588	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%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]);
7729	schaersvoo	2589	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2590	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%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]);
7735	schaersvoo	2591	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	2592	add_to_buffer(tmp_buffer);
		2593	break;
		2594	default:break;
		2595	}
		2596	}
7614	schaersvoo	2597	break;
		2598	case XYLOGSCALE:
7735	schaersvoo	2599	/*
		2600	@ xylogscale majorcolor,minorcolor
		2601	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2602	@ the linewidth is set using command 'linewidth int'
		2603	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2604	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
7739	schaersvoo	2605	@ 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	2606	@ note: the complete canvas will be used for the 'log paper'
		2607	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2608	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2609	@ 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')
		2610	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2611	@ attention: keyword 'snaptogrid' may not lead to the desired result...
		2612	*/
		2613	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2614	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		2615	for(i=0;i<2;i++){
		2616	switch(i){
		2617	case 0: stroke_color = get_color(infile,0); break;
		2618	case 1: fill_color = get_color(infile,1);
7739	schaersvoo	2619	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%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);
7735	schaersvoo	2620	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2621	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%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);
7735	schaersvoo	2622	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		2623	add_to_buffer(tmp_buffer);
		2624	break;
		2625	default:break;
		2626	}
		2627	}
		2628	break;
7614	schaersvoo	2629	default:sync_input(infile);
		2630	break;
		2631	}
		2632	}
		2633	/* we are done parsing script file */
		2634
		2635	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects ! */
		2636	add_javascript_functions(js_function,canvas_root_id);
		2637	/* add read_canvas() etc functions if needed */
		2638	if( reply_format > 0 ){ add_read_canvas(reply_format);}
		2639	/* using mouse coordinate display ? */
		2640	if( use_mouse_coordinates == TRUE ){
		2641	tmp_buffer = my_newmem(26);
		2642	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2643	}
		2644	/* add global variables / contants */
7729	schaersvoo	2645	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
		2646	var precision = %d;var xmin=%f;var xmax=%f;var ymin=%f;\
		2647	var ymax=%f;var xmin_start=xmin;var xmax_start=xmax;\
		2648	var ymin_start=ymin;var ymax_start=xmax;\
		2649	var zoom_x_increment=0;var zoom_y_increment=0;\
		2650	var pan_x_increment=0;var pan_y_increment=0;\
		2651	if(use_ylogscale == 0 ){\
		2652	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (xmax - xmin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
		2653	}else{\
		2654	zoom_x_increment = (xmax - xmin)/20;\
		2655	pan_x_increment = (xmax - xmin)/20;\
		2656	};\
7653	schaersvoo	2657	function start_canvas%d(type){\
		2658	switch(type){\
7729	schaersvoo	2659	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		2660	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	2661	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		2662	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		2663	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		2664	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
		2665	case 6:location.reload();break;\
		2666	default:break;\
		2667	};\
		2668	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		2669	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
		2670	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
		2671	%s\
		2672	};\
		2673	start_canvas%d(22);\
7614	schaersvoo	2674	};\n\
		2675	<!-- end wims_canvas_function -->\n\
7729	schaersvoo	2676	wims_canvas_function%d();\n",precision,xmin,xmax,ymin,ymax,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
7614	schaersvoo	2677	/* done writing the javascript include file */
		2678	fclose(js_include_file);
		2679
		2680	}
		2681
		2682	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
		2683	if(use_tooltip == TRUE){
		2684	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		2685	}
		2686	exit(EXIT_SUCCESS);
		2687	}
		2688	/* end main() */
		2689
		2690	/******************************************************************************
		2691	**
		2692	** sync_input
		2693	**
		2694	** synchronises input line - reads to end of line, leaving file pointer
		2695	** at first character of next line.
		2696	**
		2697	** Used by:
		2698	** main program - error handling.
		2699	**
		2700	******************************************************************************/
		2701	void sync_input(FILE *infile)
		2702	{
		2703	int c = 0;
		2704
7658	schaersvoo	2705	if( c == '\n' \|\| c == ';' ) return;
		2706	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	2707	if( c == EOF ) finished = 1;
7658	schaersvoo	2708	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	2709	return;
		2710	}
		2711
		2712	/******************************************************************************/
		2713
		2714	char str_replace(const char str, const char old, const char new){
		2715	/* http://creativeandcritical.net/str-replace-c/ */
		2716	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		2717	char ret, r;
		2718	const char p, q;
		2719	size_t oldlen = strlen(old);
		2720	size_t count = 0;
		2721	size_t retlen = 0;
		2722	size_t newlen = strlen(new);
		2723	if (oldlen != newlen){
		2724	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		2725	count++;
		2726	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		2727	}
		2728	}
		2729	else
		2730	{
		2731	retlen = strlen(str);
		2732	}
		2733
		2734	if ((ret = malloc(retlen + 1)) == NULL){
		2735	ret = NULL;
		2736	canvas_error("string argument is NULL");
		2737	}
		2738	else
		2739	{
		2740	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		2741	size_t l = q - p;
		2742	memcpy(r, p, l);
		2743	r += l;
		2744	memcpy(r, new, newlen);
		2745	r += newlen;
		2746	}
		2747	strcpy(r, p);
		2748	}
		2749	return ret;
		2750	}
		2751
		2752	/******************************************************************************/
		2753	/*
		2754	avoid the use of ctypes.h for tolower() toupper();
		2755	it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
		2756	Upper case -> Lower case : c = c - 'A'+ 'a';
		2757	Lower case -> Upper case c = c + 'A' - 'a';
		2758	*/
		2759	int tolower(int c){
		2760	if(c <= 'Z'){
		2761	if (c >= 'A'){
		2762	return c - 'A' + 'a';
		2763	}
		2764	}
		2765	return c;
		2766	}
		2767
		2768	int toupper(int c){
		2769	if(c >= 'a' && c <= 'z'){
		2770	return c + 'A' - 'a';
		2771	}
		2772	return c;
		2773	}
		2774
		2775	char get_color(FILE infile , int last){
		2776	int c,i = 0,is_hex = 0;
		2777	char temp[MAX_COLOR_STRING], *string;
7658	schaersvoo	2778	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';')){
7614	schaersvoo	2779	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		2780	if( c == '#' ){
		2781	is_hex = 1;
		2782	}
		2783	if( c != ' '){
		2784	temp[i]=tolower(c);
		2785	i++;
		2786	}
		2787	}
7658	schaersvoo	2788	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		2789	if( c == '\n' \|\| c == ';'){ done = TRUE; line_number++; }
7614	schaersvoo	2790	if( c == EOF ){finished = 1;}
		2791	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2792	temp[i]='\0';
		2793	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		2794	if( is_hex == 1 ){
		2795	char red[3], green[3], blue[3];
		2796	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		2797	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		2798	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		2799	int r = (int) strtol(red, NULL, 16);
		2800	int g = (int) strtol(green, NULL, 16);
		2801	int b = (int) strtol(blue, NULL, 16);
		2802	string = (char *)my_newmem(12);
		2803	snprintf(string,11,"%d,%d,%d",r,g,b);
		2804	return string;
		2805	}
		2806	else
		2807	{
		2808	string = (char *)my_newmem(sizeof(temp));
		2809	snprintf(string,sizeof(temp),"%s",temp);
		2810	for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
		2811	if( strcmp( colors[i].name , string ) == 0 ){
		2812	return colors[i].rgb;
		2813	}
		2814	}
		2815	}
		2816	/* not found...return error */
		2817	free(string);string = NULL;
		2818	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
		2819	return NULL;
		2820	}
		2821
		2822	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2823	int c,i=0;
		2824	char temp[MAX_BUFFER], *string;
7658	schaersvoo	2825	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ';' )){
7614	schaersvoo	2826	temp[i]=c;
		2827	i++;
		2828	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		2829	}
7658	schaersvoo	2830	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		2831	if( c == '\n' \|\| c == ';') { done = TRUE; line_number++; }
7614	schaersvoo	2832	if( c == EOF ) {
		2833	finished = 1;
		2834	if( last != 1 ){ canvas_error("expected more arguments");}
		2835	}
		2836	temp[i]='\0';
		2837	if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
		2838	string=(char *)my_newmem(strlen(temp));
		2839	snprintf(string,sizeof(temp),"%s",temp);
		2840	return string;
		2841	}
		2842
		2843	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2844	int c,i=0;
		2845	char temp[MAX_BUFFER], *string;
7658	schaersvoo	2846	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',') && ( c != ';' )){
7614	schaersvoo	2847	temp[i]=c;
		2848	i++;
		2849	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		2850	}
7658	schaersvoo	2851	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		2852	if( c == '\n' \|\| c == ';') { line_number++; }
7614	schaersvoo	2853	if( c == EOF ) {finished = 1;}
		2854	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2855	temp[i]='\0';
		2856	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
		2857	string=(char *)my_newmem(sizeof(temp));
		2858	snprintf(string,sizeof(temp),"%s",temp);
		2859	done = TRUE;
		2860	return string;
		2861	}
		2862
		2863	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		2864	int c,i=0,found_calc = 0;
		2865	double y;
		2866	char tmp[MAX_INT];
7658	schaersvoo	2867	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	2868	if( c != ' ' ){
		2869	/*
		2870	libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
		2871	We will check after assert() if it's a NULL pointer...and exit program via :
		2872	canvas_error("I'm having trouble parsing your \"expression\" ");
		2873	*/
		2874	if( i == 0 && c == '+' ){
		2875	continue;
		2876	}
		2877	else
		2878	{
		2879	if(canvas_iscalculation(c) != 0){
		2880	found_calc = 1;
		2881	c = tolower(c);
		2882	}
		2883	tmp[i] = c;
		2884	i++;
		2885	}
		2886	}
		2887	if( i > MAX_INT - 1){canvas_error("number too large");}
		2888	}
7658	schaersvoo	2889	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		2890	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	2891	if( c == EOF ){done = TRUE ; finished = 1;}
		2892	tmp[i]='\0';
		2893	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
		2894	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
		2895	void *f = evaluator_create(tmp);
		2896	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
		2897	y = evaluator_evaluate_x(f, 1);
		2898	/* if function is bogus; y = 1 : so no core dumps */
		2899	evaluator_destroy(f);
		2900	}
		2901	else
		2902	{
		2903	y = atof(tmp);
		2904	}
		2905	return y;
		2906	}
		2907
		2908	double get_double(FILE infile , int orientation , int last){ / last = 0 : more arguments ; last=1 final argument */
		2909	/* orientation=0 : x-values ... orientation=1 :y-values */
		2910	int c;
		2911	int i = 0;
		2912	int found_calc = 0; /* signal user input like : 2pi/3 /
		2913	char tmp[MAX_INT];
		2914	double dx;
7658	schaersvoo	2915	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	2916	if( c != ' '){/* no spaces in numbers */
		2917	if(canvas_iscalculation(c) != 0 ){
7658	schaersvoo	2918	found_calc = 1;
		2919	c = tolower(c);
7614	schaersvoo	2920	}
		2921	tmp[i]=c;
		2922	i++;
		2923	if( i > MAX_INT-1){canvas_error("number too large");}
		2924	}
		2925	}
7658	schaersvoo	2926	if( c == '\n' \|\| c == EOF \|\| c == ';' ){
7614	schaersvoo	2927	if( last == 0 ){canvas_error("expecting more arguments");}
		2928	if( c == EOF ){finished = TRUE;}
		2929	done = TRUE;
		2930	/return 0; /
		2931	}
		2932	tmp[i]='\0';
		2933
		2934	if( strlen(tmp) == 0 \|\| i == 0){
		2935	if( orientation == 0 ){
		2936	canvas_error("expected a x-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
		2937	}
		2938	else
		2939	{
		2940	canvas_error("expected a y-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
		2941	}
		2942	}
		2943	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
		2944	void *f = evaluator_create(tmp);
		2945	assert(f);
		2946	if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ");}
		2947	dx = evaluator_evaluate_x(f, 1);
		2948	evaluator_destroy(f);
		2949	}
		2950	else
		2951	{
		2952	dx = atof(tmp); /* no pi/e/sin(2pi/3) found : will use atof to convert inputstring to float /
		2953	}
7658	schaersvoo	2954	if( c == '\n' \|\| c == ';') { line_number++; }
7614	schaersvoo	2955	if( c != EOF ) {
7658	schaersvoo	2956	if( c == '\n' \|\| c ==';') {
7614	schaersvoo	2957	done = TRUE;
		2958	}
		2959	}
		2960	else
		2961	{
		2962	finished = TRUE;
		2963	}
		2964	if( (done == TRUE \|\| finished == TRUE) && last != 1 ){ canvas_error("expected more arguments");}
		2965	if(orientation == 0){
		2966	return x2px( dx ); /* convert to pixels according xrange */
		2967	}
		2968	else
		2969	{
		2970	return y2px( dx );/* convert to pixels according yrange */
		2971	}
		2972	}
		2973	void canvas_error(char *msg){
		2974	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number,msg);
		2975	finished = 1;
		2976	exit(EXIT_SUCCESS);
		2977	}
		2978
		2979
		2980	/* convert x/y coordinates to pixel */
		2981	int x2px(double x){
		2982	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		2983	}
		2984
		2985	int y2px(double y){
		2986	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		2987	}
		2988
		2989	double px2x(int x){
		2990	return (x*(xmax - xmin)/xsize + xmin);
		2991	}
		2992	double px2y(int y){
		2993	return (y*(ymax - ymin)/ysize + ymin);
		2994	}
		2995
		2996	void add_to_buffer(char *tmp){
		2997	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		2998	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		2999	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		3000	if( space_left > strlen(tmp)){
		3001	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		3002	}
		3003	else
		3004	{
		3005	canvas_error("buffer is too big\n");
		3006	}
		3007	tmp = NULL;free(tmp);
		3008	return;
		3009	}
		3010
		3011	void reset(){
		3012	if(use_filled == TRUE){use_filled = FALSE;}
		3013	if(use_dashed == TRUE){use_dashed = FALSE;}
		3014	if(use_translate == TRUE){use_translate = FALSE;}
		3015	if(use_rotate == TRUE){use_rotate = FALSE;}
		3016	onclick = 0;
		3017	}
		3018
		3019
		3020
		3021	/* What reply format in read_canvas();
		3022
		3023	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		3024	1 = x1,x2,x3,x4....x_n
		3025	y1,y2,y3,y4....y_n
		3026
		3027	x/y in pixels
		3028
		3029	2 = x1,x2,x3,x4....x_n
		3030	y1,y2,y3,y4....y_n
		3031	x/y in xrange / yrange coordinate system
		3032
		3033	3 = x1,x2,x3,x4....x_n
		3034	y1,y2,y3,y4....y_n
		3035	r1,r2,r3,r4....r_n
		3036
		3037	x/y in pixels
		3038	r in pixels
		3039
		3040	4 = x1,x2,x3,x4....x_n
		3041	y1,y2,y3,y4....y_n
		3042	r1,r2,r3,r4....r_n
		3043
		3044	x/y in xrange / yrange coordinate system
		3045	r in pixels
		3046
		3047	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3048	Ay1,Ay2,Ay3,Ay4....Ay_n
		3049	Bx1,Bx2,Bx3,Bx4....Bx_n
		3050	By1,By2,By3,By4....By_n
		3051	Cx1,Cx2,Cx3,Cx4....Cx_n
		3052	Cy1,Cy2,Cy3,Cy4....Cy_n
		3053	....
		3054	Zx1,Zx2,Zx3,Zx4....Zx_n
		3055	Zy1,Zy2,Zy3,Zy4....Zy_n
		3056
		3057	x/y in pixels
		3058
		3059	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3060	Ay1,Ay2,Ay3,Ay4....Ay_n
		3061	Bx1,Bx2,Bx3,Bx4....Bx_n
		3062	By1,By2,By3,By4....By_n
		3063	Cx1,Cx2,Cx3,Cx4....Cx_n
		3064	Cy1,Cy2,Cy3,Cy4....Cy_n
		3065	....
		3066	Zx1,Zx2,Zx3,Zx4....Zx_n
		3067	Zy1,Zy2,Zy3,Zy4....Zy_n
		3068
		3069	x/y in xrange / yrange coordinate system
		3070
		3071	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3072
		3073	x/y in pixels
		3074
		3075	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3076
		3077	x/y in xrange / yrange coordinate system
		3078
		3079	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3080
		3081	x/y in pixels
		3082
		3083	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3084
		3085	x/y in xrange / yrange coordinate system
		3086
		3087	11 = Ax1,Ay1,Ax2,Ay2
		3088	Bx1,By1,Bx2,By2
		3089	Cx1,Cy1,Cx2,Cy2
		3090	Dx1,Dy1,Dx2,Dy2
		3091	......
		3092	Zx1,Zy1,Zx2,Zy2
		3093
		3094	x/y in xrange / yrange coordinate system
		3095
		3096	12 = Ax1,Ay1,Ax2,Ay2
		3097	Bx1,By1,Bx2,By2
		3098	Cx1,Cy1,Cx2,Cy2
		3099	Dx1,Dy1,Dx2,Dy2
		3100	......
		3101	Zx1,Zy1,Zx2,Zy2
		3102
		3103	x/y in pixels
		3104
		3105	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		3106
		3107	x/y in xrange / yrange coordinate system
		3108	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		3109	x/y in pixels
		3110	15 = reply from inputfields,textareas
		3111	reply1,reply2,reply3,...,reply_n
		3112
		3113	16 = read mathml inputfields only
		3114
		3115	17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
		3116	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		3117
		3118	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		3119	19 = return clicked object number (analogue to shape-library onclick)
		3120	20 = return x/y-data in x-range/y-range of all 'draggable' images
		3121	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		3122	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		3123	x/y in xrange / yrange coordinate system
		3124
		3125	*/
		3126
		3127
		3128	void add_read_canvas(int type_reply){
		3129	/* just 1 reply type allowed */
		3130	switch(type_reply){
		3131	/* TO DO
		3132	!!!! NEED TO SIMPLIFY !!!!
		3133	answers may have:
		3134	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		3135	*/
		3136	case 1: fprintf(js_include_file,"\
7653	schaersvoo	3137	\n<!-- begin function 1 read_canvas() -->\n\
7614	schaersvoo	3138	function read_canvas(){\
		3139	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3140	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3141	var p = 0;var input_reply = new Array();\
		3142	if( document.getElementById(\"canvas_input0\")){\
		3143	var t = 0;\
		3144	while(document.getElementById(\"canvas_input\"+t)){\
		3145	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3146	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3147	p++;\
		3148	};\
		3149	t++;\
		3150	};\
		3151	};\
		3152	if( typeof userdraw_text != 'undefined' ){\
		3153	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		3154	}\
		3155	else\
		3156	{\
		3157	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		3158	}\
		3159	}\
		3160	else\
		3161	{\
		3162	if( typeof userdraw_text != 'undefined' ){\
		3163	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		3164	}\
		3165	else\
		3166	{\
		3167	return userdraw_x+\"\\n\"+userdraw_y;\
		3168	}\
		3169	};\
		3170	};\
		3171	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3172	<!-- end function 1 read_canvas() -->");
7614	schaersvoo	3173	break;
		3174	case 2: fprintf(js_include_file,"\
7653	schaersvoo	3175	\n<!-- begin function 2 read_canvas() -->\n\
7614	schaersvoo	3176	function read_canvas(){\
		3177	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3178	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3179	while(userdraw_x[p]){\
		3180	reply_x[p] = px2x(userdraw_x[p]);\
		3181	reply_y[p] = px2y(userdraw_y[p]);\
		3182	p++;\
		3183	};\
		3184	if(p == 0){alert(\"nothing drawn...\");return;};\
		3185	if( document.getElementById(\"canvas_input0\")){\
		3186	var p = 0;var input_reply = new Array();\
		3187	if( document.getElementById(\"canvas_input0\")){\
		3188	var t = 0;\
		3189	while(document.getElementById(\"canvas_input\"+t)){\
		3190	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3191	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3192	p++;\
		3193	};\
		3194	t++;\
		3195	};\
		3196	};\
		3197	if( typeof userdraw_text != 'undefined' ){\
		3198	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3199	}\
		3200	else\
		3201	{\
		3202	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		3203	}\
		3204	}\
		3205	else\
		3206	{\
		3207	if( typeof userdraw_text != 'undefined' ){\
		3208	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		3209	}\
		3210	else\
		3211	{\
		3212	return reply_x+\"\\n\"+reply_y;\
		3213	};\
		3214	};\
		3215	};\
		3216	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3217	<!-- end function 2 read_canvas() -->");
7614	schaersvoo	3218	break;
		3219	case 3: fprintf(js_include_file,"\
7653	schaersvoo	3220	\n<!-- begin function 3 read_canvas() -->\n\
7614	schaersvoo	3221	function read_canvas(){\
		3222	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3223	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3224	var p = 0;var input_reply = new Array();\
		3225	if( document.getElementById(\"canvas_input0\")){\
		3226	var t = 0;\
		3227	while(document.getElementById(\"canvas_input\"+t)){\
		3228	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3229	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3230	p++;\
		3231	};\
		3232	t++;\
		3233	};\
		3234	};\
		3235	if( typeof userdraw_text != 'undefined' ){\
		3236	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3237	}\
		3238	else\
		3239	{\
		3240	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3241	}\
		3242	}\
		3243	else\
		3244	{\
		3245	if( typeof userdraw_text != 'undefined' ){\
		3246	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		3247	}\
		3248	else\
		3249	{\
		3250	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		3251	}\
		3252	}\
		3253	};\
		3254	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3255	<!-- end function 3 read_canvas() -->");
7614	schaersvoo	3256	break;
		3257	case 4: fprintf(js_include_file,"\
7653	schaersvoo	3258	\n<!-- begin function 4 read_canvas() -->\n\
7614	schaersvoo	3259	function read_canvas(){\
		3260	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3261	while(userdraw_x[p]){\
		3262	reply_x[p] = px2x(userdraw_x[p]);\
		3263	reply_y[p] = px2y(userdraw_y[p]);\
		3264	p++;\
		3265	};\
		3266	if(p == 0){alert(\"nothing drawn...\");return;};\
		3267	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3268	var p = 0;var input_reply = new Array();\
		3269	if( document.getElementById(\"canvas_input0\")){\
		3270	var t = 0;\
		3271	while(document.getElementById(\"canvas_input\"+t)){\
		3272	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3273	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3274	p++;\
		3275	};\
		3276	t++;\
		3277	};\
		3278	};\
		3279	if( typeof userdraw_text != 'undefined' ){\
		3280	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3281	}\
		3282	else\
		3283	{\
		3284	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3285	}\
		3286	}\
		3287	else\
		3288	{\
		3289	if( typeof userdraw_text != 'undefined' ){\
		3290	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		3291	}\
		3292	else\
		3293	{\
		3294	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		3295	}\
		3296	};\
		3297	};\
		3298	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3299	<!-- end function 4 read_canvas() -->");
7614	schaersvoo	3300	break;
		3301	/*
		3302	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3303	used for userdraw multiple paths
		3304	*/
		3305	case 5: fprintf(js_include_file,"\
7653	schaersvoo	3306	\n<!-- begin function 5 read_canvas() -->\n\
7614	schaersvoo	3307	function read_canvas(){\
		3308	var p = 0;\
		3309	var reply = \"\";\
		3310	for(p = 0; p < userdraw_x.length;p++){\
		3311	if(userdraw_x[p] != null ){\
		3312	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		3313	};\
		3314	};\
		3315	if(p == 0){alert(\"nothing drawn...\");return;};\
		3316	userdraw_x = [];userdraw_y = [];\
		3317	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3318	var p = 0;var input_reply = new Array();\
		3319	if( document.getElementById(\"canvas_input0\")){\
		3320	var t = 0;\
		3321	while(document.getElementById(\"canvas_input\"+t)){\
		3322	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3323	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3324	p++;\
		3325	};\
		3326	t++;\
		3327	};\
		3328	};\
		3329	if( typeof userdraw_text != 'undefined' ){\
		3330	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3331	}\
		3332	else\
		3333	{\
		3334	return reply +\"\\n\"+input_reply;\
		3335	}\
		3336	}\
		3337	else\
		3338	{\
		3339	if( typeof userdraw_text != 'undefined' ){\
		3340	return reply+\"\\n\"+userdraw_text;\
		3341	}\
		3342	else\
		3343	{\
		3344	return reply;\
		3345	}\
		3346	};\
		3347	};\
7654	schaersvoo	3348	this.read_canvas = rdad_canvas;\n\
7653	schaersvoo	3349	<!-- end function 5 read_canvas() -->");
7614	schaersvoo	3350	break;
		3351	/*
		3352	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3353	used for userdraw multiple paths
		3354	*/
		3355	case 6: fprintf(js_include_file,"\
7653	schaersvoo	3356	\n<!-- begin function 6 read_canvas() -->\n\
7614	schaersvoo	3357	function read_canvas(){\
		3358	var p = 0;\
		3359	var reply = \"\";\
		3360	var tmp_x = new Array();\
		3361	var tmp_y = new Array();\
		3362	for(p = 0 ; p < userdraw_x.length; p++){\
		3363	tmp_x = userdraw_x[p];\
		3364	tmp_y = userdraw_y[p];\
		3365	if(tmp_x != null){\
		3366	for(var i = 0 ; i < tmp_x.length ; i++){\
		3367	tmp_x[i] = px2x(tmp_x[i]);\
		3368	tmp_y[i] = px2y(tmp_y[i]);\
		3369	};\
		3370	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		3371	};\
		3372	};\
		3373	if(p == 0){alert(\"nothing drawn...\");return;};\
		3374	userdraw_x = [];userdraw_y = [];\
		3375	if( document.getElementById(\"canvas_input0\") ){\
		3376	var p = 0;var input_reply = new Array();\
		3377	if( document.getElementById(\"canvas_input0\")){\
		3378	var t = 0;\
		3379	while(document.getElementById(\"canvas_input\"+t)){\
		3380	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3381	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3382	p++;\
		3383	};\
		3384	t++;\
		3385	};\
		3386	};\
		3387	if( typeof userdraw_text != 'undefined' ){\
		3388	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3389	}\
		3390	else\
		3391	{\
		3392	return reply +\"\\n\"+input_reply;\
		3393	}\
		3394	}\
		3395	else\
		3396	{\
		3397	if( typeof userdraw_text != 'undefined' ){\
		3398	return reply +\"\\n\"+userdraw_text;\
		3399	}\
		3400	else\
		3401	{\
		3402	return reply;\
		3403	}\
		3404	};\
		3405	};\
		3406	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3407	<!-- end function 6 read_canvas() -->");
7614	schaersvoo	3408	break;
		3409	case 7: fprintf(js_include_file,"\
7653	schaersvoo	3410	\n<!-- begin function 7 read_canvas() -->\n\
7614	schaersvoo	3411	function read_canvas(){\
		3412	var reply = new Array();\
		3413	var p = 0;\
		3414	while(userdraw_x[p]){\
		3415	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		3416	p++;\
		3417	};\
		3418	if(p == 0){alert(\"nothing drawn...\");return;};\
		3419	if( document.getElementById(\"canvas_input0\") ){\
		3420	var p = 0;var input_reply = new Array();\
		3421	if( document.getElementById(\"canvas_input0\")){\
		3422	var t = 0;\
		3423	while(document.getElementById(\"canvas_input\"+t)){\
		3424	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3425	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3426	p++;\
		3427	};\
		3428	t++;\
		3429	};\
		3430	};\
		3431	if( typeof userdraw_text != 'undefined' ){\
		3432	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3433	}\
		3434	else\
		3435	{\
		3436	return reply+\"\\n\"+input_reply;\
		3437	}\
		3438	};\
		3439	else\
		3440	{\
		3441	if( typeof userdraw_text != 'undefined' ){\
		3442	return reply+\"\\n\"+userdraw_text;\
		3443	}\
		3444	else\
		3445	{\
		3446	return reply;\
		3447	}\
		3448	};\
		3449	};\
		3450	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3451	<!-- end function 7 read_canvas() -->");
7614	schaersvoo	3452	break;
		3453	case 8: fprintf(js_include_file,"\
7653	schaersvoo	3454	\n<!-- begin function 8 read_canvas() -->\n\
7614	schaersvoo	3455	function read_canvas(){\
		3456	var reply = new Array();\
		3457	var p = 0;\
		3458	while(userdraw_x[p]){\
		3459	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
		3460	p++;\
		3461	};\
		3462	if(p == 0){alert(\"nothing drawn...\");return;};\
		3463	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3464	var p = 0;var input_reply = new Array();\
		3465	if( document.getElementById(\"canvas_input0\")){\
		3466	var t = 0;\
		3467	while(document.getElementById(\"canvas_input\"+t)){\
		3468	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3469	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3470	p++;\
		3471	};\
		3472	t++;\
		3473	};\
		3474	};\
		3475	if( typeof userdraw_text != 'undefined' ){\
		3476	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3477	}\
		3478	else\
		3479	{\
		3480	return reply +\"\\n\"+input_reply;\
		3481	}\
		3482	}\
		3483	else\
		3484	{\
		3485	if( typeof userdraw_text != 'undefined' ){\
		3486	return reply +\"\\n\"+userdraw_text;\
		3487	}\
		3488	else\
		3489	{\
		3490	return reply;\
		3491	}\
		3492	};\
		3493	};\
		3494	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3495	<!-- end function 8 read_canvas() -->");
7614	schaersvoo	3496	break;
		3497	case 9: fprintf(js_include_file,"\
7653	schaersvoo	3498	\n<!-- begin function 9 read_canvas() -->\n\
7614	schaersvoo	3499	function read_canvas(){\
		3500	var reply = new Array();\
		3501	var p = 0;\
		3502	while(userdraw_x[p]){\
		3503	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		3504	p++;\
		3505	};\
		3506	if(p == 0){alert(\"nothing drawn...\");return;};\
		3507	if( document.getElementById(\"canvas_input0\") ){\
		3508	var p = 0;var input_reply = new Array();\
		3509	if( document.getElementById(\"canvas_input0\")){\
		3510	var t = 0;\
		3511	while(document.getElementById(\"canvas_input\"+t)){\
		3512	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3513	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3514	p++;\
		3515	};\
		3516	t++;\
		3517	};\
		3518	};\
		3519	if( typeof userdraw_text != 'undefined' ){\
		3520	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3521	}\
		3522	else\
		3523	{\
		3524	return reply +\"\\n\"+input_reply;\
		3525	}\
		3526	}\
		3527	else\
		3528	{\
		3529	if( typeof userdraw_text != 'undefined' ){\
		3530	return reply +\"\\n\"+userdraw_text;\
		3531	}\
		3532	else\
		3533	{\
		3534	return reply;\
		3535	}\
		3536	};\
		3537	};\
		3538	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3539	<!-- end function 9 read_canvas() -->");
7614	schaersvoo	3540	break;
		3541	case 10: fprintf(js_include_file,"\
7653	schaersvoo	3542	\n<!-- begin function 10 read_canvas() -->\n\
7614	schaersvoo	3543	function read_canvas(){\
		3544	var reply = new Array();\
		3545	var p = 0;\
		3546	while(userdraw_x[p]){\
		3547	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
		3548	p++;\
		3549	};\
		3550	if(p == 0){alert(\"nothing drawn...\");return;};\
		3551	if( document.getElementById(\"canvas_input0\") ){\
		3552	var p = 0;var input_reply = new Array();\
		3553	if( document.getElementById(\"canvas_input0\")){\
		3554	var t = 0;\
		3555	while(document.getElementById(\"canvas_input\"+t)){\
		3556	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3557	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3558	p++;\
		3559	};\
		3560	t++;\
		3561	};\
		3562	};\
		3563	if( typeof userdraw_text != 'undefined' ){\
		3564	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3565	}\
		3566	else\
		3567	{\
		3568	return reply +\"\\n\"+input_reply;\
		3569	}\
		3570	}\
		3571	else\
		3572	{\
		3573	if( typeof userdraw_text != 'undefined' ){\
		3574	return reply +\"\\n\"+userdraw_text;\
		3575	}\
		3576	else\
		3577	{\
		3578	return reply;\
		3579	}\
		3580	};\
		3581	};\
		3582	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3583	<!-- end function 10 read_canvas() -->");
7614	schaersvoo	3584	break;
		3585	case 11: fprintf(js_include_file,"\
7653	schaersvoo	3586	\n<!-- begin function 11 read_canvas() -->\n\
7614	schaersvoo	3587	function read_canvas(){\
		3588	var reply = \"\";\
		3589	var p = 0;\
		3590	while(userdraw_x[p]){\
		3591	reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
		3592	p = p+2;\
		3593	};\
		3594	if(p == 0){alert(\"nothing drawn...\");return;};\
		3595	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3596	var p = 0;var input_reply = new Array();\
		3597	if( document.getElementById(\"canvas_input0\")){\
		3598	var t = 0;\
		3599	while(document.getElementById(\"canvas_input\"+t)){\
		3600	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3601	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3602	p++;\
		3603	};\
		3604	t++;\
		3605	};\
		3606	};\
		3607	if( typeof userdraw_text != 'undefined' ){\
		3608	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3609	}\
		3610	else\
		3611	{\
		3612	return reply +\"\\n\"+input_reply;\
		3613	}\
		3614	}\
		3615	else\
		3616	{\
		3617	if( typeof userdraw_text != 'undefined' ){\
		3618	return reply +\"\\n\"+userdraw_text;\
		3619	}\
		3620	else\
		3621	{\
		3622	return reply;\
		3623	}\
		3624	};\
		3625	};\
		3626	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3627	<!-- end function 11 read_canvas() -->");
7614	schaersvoo	3628	break;
		3629	case 12: fprintf(js_include_file,"\
7653	schaersvoo	3630	\n<!-- begin function 12 read_canvas() -->\n\
7614	schaersvoo	3631	function read_canvas(){\
		3632	var reply = \"\";\
		3633	var p = 0;\
		3634	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		3635	if(userdraw_x[p] != null){\
		3636	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		3637	};\
		3638	};\
		3639	if(p == 0){alert(\"nothing drawn...\");return;};\
		3640	if( document.getElementById(\"canvas_input0\") ){\
		3641	var p = 0;var input_reply = new Array();\
		3642	if( document.getElementById(\"canvas_input0\")){\
		3643	var t = 0;\
		3644	while(document.getElementById(\"canvas_input\"+t)){\
		3645	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3646	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3647	p++;\
		3648	};\
		3649	t++;\
		3650	};\
		3651	};\
		3652	if( typeof userdraw_text != 'undefined' ){\
		3653	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3654	}\
		3655	else\
		3656	{\
		3657	return reply +\"\\n\"+input_reply;\
		3658	}\
		3659	}\
		3660	else\
		3661	{\
		3662	if( typeof userdraw_text != 'undefined' ){\
		3663	return reply +\"\\n\"+userdraw_text\
		3664	}\
		3665	else\
		3666	{\
		3667	return reply;\
		3668	}\
		3669	};\
		3670	};\
		3671	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3672	<!-- end function 12 read_canvas() -->");
7614	schaersvoo	3673	break;
		3674	case 13: fprintf(js_include_file,"\
7653	schaersvoo	3675	\n<!-- begin function 13 read_canvas() -->\n\
7614	schaersvoo	3676	function read_canvas(){\
		3677	var reply = new Array();\
		3678	var p = 0;var i = 0;\
		3679	while(userdraw_x[p]){\
		3680	reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
		3681	p = p+2;i++;\
		3682	};\
		3683	if(p == 0){alert(\"nothing drawn...\");return;};\
		3684	if( document.getElementById(\"canvas_input0\") ){\
		3685	var p = 0;var input_reply = new Array();\
		3686	if( document.getElementById(\"canvas_input0\")){\
		3687	var t = 0;\
		3688	while(document.getElementById(\"canvas_input\"+t)){\
		3689	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3690	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3691	p++;\
		3692	};\
		3693	t++;\
		3694	};\
		3695	};\
		3696	if( typeof userdraw_text != 'undefined' ){\
		3697	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3698	}\
		3699	else\
		3700	{\
		3701	return reply +\"\\n\"+input_reply;\
		3702	}\
		3703	}\
		3704	else\
		3705	{\
		3706	if( typeof userdraw_text != 'undefined' ){\
		3707	return reply +\"\\n\"+userdraw_text\
		3708	}\
		3709	else\
		3710	{\
		3711	return reply;\
		3712	}\
		3713	};\
		3714	};\
		3715	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3716	<!-- end function 13 read_canvas() -->");
7614	schaersvoo	3717	break;
		3718	case 14: fprintf(js_include_file,"\
7653	schaersvoo	3719	\n<!-- begin function 14 read_canvas() -->\n\
7614	schaersvoo	3720	function read_canvas(){\
		3721	var reply = new Array();\
		3722	var p = 0;var i = 0;\
		3723	while(userdraw_x[p]){\
		3724	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		3725	p = p+2;i++;\
		3726	};\
		3727	if(p == 0){alert(\"nothing drawn...\");return;};\
		3728	if( document.getElementById(\"canvas_input0\") ){\
		3729	var p = 0;var input_reply = new Array();\
		3730	if( document.getElementById(\"canvas_input0\")){\
		3731	var t = 0;\
		3732	while(document.getElementById(\"canvas_input\"+t)){\
		3733	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3734	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3735	p++;\
		3736	};\
		3737	t++;\
		3738	};\
		3739	};\
		3740	if( typeof userdraw_text != 'undefined' ){\
		3741	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3742	}\
		3743	else\
		3744	{\
		3745	return reply +\"\\n\"+input_reply;\
		3746	}\
		3747	}\
		3748	else\
		3749	{\
		3750	if( typeof userdraw_text != 'undefined' ){\
		3751	return reply +\"\\n\"+userdraw_text;\
		3752	}\
		3753	else\
		3754	{\
		3755	return reply;\
		3756	}\
		3757	};\
		3758	};\
		3759	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3760	<!-- end function 14 read_canvas() -->");
7614	schaersvoo	3761	break;
		3762	case 15: fprintf(js_include_file,"\
7653	schaersvoo	3763	\n<!-- begin function 15 read_canvas() -->\n\
7614	schaersvoo	3764	function read_canvas(){\
		3765	var input_reply = new Array();\
		3766	var p = 0;\
		3767	if( document.getElementById(\"canvas_input0\")){\
		3768	var t = 0;\
		3769	while(document.getElementById(\"canvas_input\"+t)){\
		3770	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3771	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3772	p++;\
		3773	};\
		3774	t++;\
		3775	};\
		3776	};\
		3777	if( typeof userdraw_text != 'undefined' ){\
		3778	return input_reply +\"\\n\"+userdraw_text;\
		3779	}\
		3780	else\
		3781	{\
		3782	return input_reply;\
		3783	};\
		3784	};\
		3785	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3786	<!-- end function 15 read_canvas() -->");
7614	schaersvoo	3787	break;
		3788	case 16: fprintf(js_include_file,"\
7653	schaersvoo	3789	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	3790	function read_mathml(){\
		3791	var reply = new Array();\
		3792	var p = 0;\
		3793	if( document.getElementById(\"mathml0\")){\
		3794	while(document.getElementById(\"mathml\"+p)){\
		3795	reply[p] = document.getElementById(\"mathml\"+p).value;\
		3796	p++;\
		3797	};\
		3798	};\
		3799	return reply;\
		3800	};\
		3801	this.read_mathml = read_mathml;\n\
7653	schaersvoo	3802	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	3803	break;
		3804	case 17: fprintf(js_include_file,"\
7653	schaersvoo	3805	\n<!-- begin function 17 read_canvas() -->\n\
7614	schaersvoo	3806	function read_canvas(){\
		3807	if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
		3808	return userdraw_text;\
		3809	};\
		3810	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3811	<!-- end function 17 read_canvas() -->");
7614	schaersvoo	3812	break;
		3813	case 18: fprintf(js_include_file,"\
7653	schaersvoo	3814	\n<!-- begin function 18 read_canvas() -->\n\
7614	schaersvoo	3815	function read_canvas(){\
		3816	var p = 0;\
		3817	var reply = new Array();\
		3818	var name;\
		3819	var t = true;\
		3820	while(t){\
		3821	try{ name = eval('clocks'+p);\
		3822	reply[p] = parseInt((name.H+name.M/60+name.S/3600)%%12)+\":\"+parseInt((name.M + name.S/60)%%60)+\":\"+(name.S)%%60;p++}catch(e){t=false;};\
		3823	};\
		3824	if( p == 0){alert(\"clock(s) not modified...\");return;}\
		3825	return reply;\
		3826	};\
		3827	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3828	<!-- end function 18 read_canvas() -->");
7614	schaersvoo	3829	break;
		3830	case 19: fprintf(js_include_file,"\
7653	schaersvoo	3831	\n<!-- begin function 19 read_canvas() -->\n\
7614	schaersvoo	3832	function read_canvas(){\
		3833	return reply[0];\
		3834	};\
		3835	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3836	<!-- end function 19 read_canvas() -->");
7614	schaersvoo	3837	case 20: fprintf(js_include_file,"\
7653	schaersvoo	3838	\n<!-- begin function 20 read_canvas() -->\n\
7614	schaersvoo	3839	function read_canvas(){\
		3840	var len = ext_drag_images.length;\
		3841	var reply = new Array(len);\
		3842	for(var p = 0 ; p < len ; p++){\
		3843	var img = ext_drag_images[p];\
		3844	reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
		3845	};\
		3846	return reply;\
		3847	};\
		3848	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3849	<!-- end function 20 read_canvas() -->");
7614	schaersvoo	3850	break;
		3851	case 21: fprintf(js_include_file,"\
7653	schaersvoo	3852	\n<!-- begin function 21 read_canvas() -->\n\
7614	schaersvoo	3853	function read_canvas(){\
		3854	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3855	var reply_coord = new Array();var p = 0;\
		3856	while(userdraw_x[p]){\
		3857	reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
		3858	p++;\
		3859	};\
		3860	if(p == 0){alert(\"nothing drawn...\");return;};\
		3861	if( document.getElementById(\"canvas_input0\") ){\
		3862	var p = 0;var input_reply = new Array();\
		3863	if( document.getElementById(\"canvas_input0\")){\
		3864	var t = 0;\
		3865	while(document.getElementById(\"canvas_input\"+t)){\
		3866	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3867	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3868	p++;\
		3869	};\
		3870	t++;\
		3871	};\
		3872	};\
		3873	if( typeof userdraw_text != 'undefined' ){\
		3874	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3875	}\
		3876	else\
		3877	{\
		3878	return reply_coord+\"\\n\"+input_reply;\
		3879	}\
		3880	}\
		3881	else\
		3882	{\
		3883	if( typeof userdraw_text != 'undefined' ){\
		3884	return reply_coord+\"\\n\"+userdraw_text;\
		3885	}\
		3886	else\
		3887	{\
		3888	return reply_coord;\
		3889	};\
		3890	};\
		3891	};\
		3892	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3893	<!-- end function 21 read_canvas() -->");
7614	schaersvoo	3894	break;
		3895	case 22: fprintf(js_include_file,"\
7653	schaersvoo	3896	\n<!-- begin function 22 read_canvas() -->\n\
7614	schaersvoo	3897	function read_canvas(){\
		3898	var reply = new Array();\
		3899	var p = 0;\
		3900	var idx = 0;\
		3901	while(userdraw_x[p]){\
		3902	reply[idx] = px2x(userdraw_x[p]);\
		3903	idx++;\
		3904	reply[idx] = px2y(userdraw_y[p]);\
		3905	idx++;p++;\
		3906	};\
		3907	if(p == 0){alert(\"nothing drawn...\");return;};\
		3908	if( document.getElementById(\"canvas_input0\") ){\
		3909	var p = 0;var input_reply = new Array();\
		3910	if( document.getElementById(\"canvas_input0\")){\
		3911	var t = 0;\
		3912	while(document.getElementById(\"canvas_input\"+t)){\
		3913	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3914	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3915	p++;\
		3916	};\
		3917	t++;\
		3918	};\
		3919	};\
		3920	if( typeof userdraw_text != 'undefined' ){\
		3921	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3922	}\
		3923	else\
		3924	{\
		3925	return reply +\"\\n\"+input_reply;\
		3926	}\
		3927	}\
		3928	else\
		3929	{\
		3930	if( typeof userdraw_text != 'undefined' ){\
		3931	return reply +\"\\n\"+userdraw_text;\
		3932	}\
		3933	else\
		3934	{\
		3935	return reply;\
		3936	}\
		3937	};\
		3938	};\
		3939	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3940	<!-- end function 22 read_canvas() -->");
7614	schaersvoo	3941	break;
		3942
		3943	default: canvas_error("hmmm unknown replyformat...");break;
		3944	}
		3945	return;
		3946	}
		3947
		3948
		3949	/*
		3950	add drawfunction :
		3951	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		3952	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		3953	- grid / mathml
		3954	- will not scale or zoom in
		3955	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
		3956	- is printed directly into 'js_include_file'
		3957	*/
		3958
		3959	void add_javascript_functions(int js_functions[],int canvas_root_id){
		3960	int i;
		3961	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
		3962	if( js_functions[i] == 1){
		3963	switch(i){
		3964	case DRAG_EXTERNAL_IMAGE:
		3965	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	3966	var external_canvas = create_canvas%d(7,xsize,ysize);\
		3967	var external_ctx = external_canvas.getContext(\"2d\");\
		3968	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		3969	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		3970	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		3971	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		3972	var selected_image = null;\
		3973	var ext_image_cnt = 0;\
		3974	var ext_drag_images = new Array();\
		3975	function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
		3976	ext_image_cnt = idx;\
		3977	var image = new Image();\
		3978	image.src = URL;\
		3979	image.onload = function(){\
		3980	if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
		3981	if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
		3982	if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
		3983	img = new Array(10);\
		3984	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
		3985	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
		3986	ext_drag_images[idx] = img;\
		3987	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		3988	};\
		3989	};\
		3990	function dragstop(evt){\
		3991	selected_image = null;return;\
		3992	};\
		3993	function dragxy(evt){\
		3994	if( selected_image != null ){\
		3995	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		3996	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		3997	var s_img = ext_drag_images[selected_image];\
		3998	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		3999	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
		4000	ext_drag_images[selected_image] = s_img;\
		4001	external_ctx.clearRect(0,0,xsize,ysize);\
		4002	for(var i = 0; i <= ext_image_cnt ; i++){\
		4003	var img = ext_drag_images[i];\
		4004	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4005	};\
		4006	};\
		4007	};\
		4008	function setxy(evt){\
		4009	if( ! selected_image && evt.which == 1 ){\
		4010	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4011	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4012	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		4013	var ym = evt.clientY - external_canvas_rect.top + yoff;\
		4014	for(var p = 0 ; p <= ext_image_cnt ; p++){\
		4015	var img = ext_drag_images[p];\
		4016	if( img[0] == 1 ){\
		4017	var w = img.width;\
		4018	var h = img.height;\
		4019	if( xm > img[6] && xm < img[6] + img[4]){\
		4020	if( ym > img[7] && ym < img[7] + img[5]){\
		4021	img[6] = xm;\
		4022	img[7] = ym;\
		4023	ext_drag_images[p] = img;\
		4024	selected_image = p;\
		4025	dragxy(evt);\
		4026	};\
		4027	};\
		4028	};\
		4029	};\
		4030	}\
		4031	else\
		4032	{\
		4033	selected_image = null;\
		4034	};\
7614	schaersvoo	4035	};",canvas_root_id);
		4036	break;
		4037
		4038	case DRAW_EXTERNAL_IMAGE:
		4039	fprintf(js_include_file,"\n<!-- draw external images -->\n\
		4040	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
		4041	var image = new Image();\
		4042	image.src = URL;\
		4043	var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
		4044	image.onload = function(){\
		4045	if( x0 < 1 ){ x0 = 0; };\
		4046	if( y0 < 1 ){ y0 = 0; };\
		4047	if( sx < 1 ){ sx = 0; };\
		4048	if( sy < 1 ){ sy = 0; };\
		4049	if( width < 1 ){ width = image.width;};\
		4050	if( height < 1 ){ height = image.height;};\
		4051	if( swidth < 1 ){ swidth = image.width;};\
		4052	if( sheight < 1 ){ sheight = image.height;};\
		4053	var ml = x0 - sx;\
		4054	var mh = y0 - sy;\
		4055	canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
		4056	canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
		4057	canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
		4058	canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
		4059	canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
		4060	};\
7653	schaersvoo	4061	};",canvas_root_id);
7614	schaersvoo	4062	break;
		4063
		4064	case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px forbidden zone for drawing : y < ysize - 15*/
		4065	fprintf(js_include_file,"\n<!-- draw zoom buttons -->\n\
		4066	draw_zoom_buttons = function(canvas_type,color,opacity){\
		4067	var obj;\
		4068	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4069	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4070	}\
		4071	else\
		4072	{\
		4073	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4074	};\
		4075	var ctx = obj.getContext(\"2d\");\
		4076	ctx.font =\"18px Ariel\";\
		4077	ctx.textAlign = \"right\";\
		4078	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4079	ctx.fillText(\"+\",xsize,ysize);\
		4080	ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
		4081	ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
		4082	ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
		4083	ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
		4084	ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
		4085	ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
		4086	ctx.stroke();\
7653	schaersvoo	4087	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4088
		4089	break;
		4090	case DRAW_GRIDFILL:/* not used for userdraw */
		4091	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
		4092	draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
		4093	var obj;\
		4094	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4095	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4096	}\
		4097	else\
		4098	{\
		4099	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4100	};\
		4101	var ctx = obj.getContext(\"2d\");\
		4102	var x,y;\
		4103	ctx.save();\
		4104	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
7645	schaersvoo	4105	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4106	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4107	ctx.moveTo(x,y0);\
		4108	ctx.lineTo(x,ysize);\
		4109	};\
7645	schaersvoo	4110	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	4111	ctx.moveTo(x0,y);\
		4112	ctx.lineTo(xsize,y);\
		4113	};\
		4114	ctx.stroke();\
		4115	ctx.restore();\
7653	schaersvoo	4116	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4117	break;
		4118
		4119	case DRAW_IMAGEFILL:/* not used for userdraw */
		4120	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
		4121	draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
		4122	var obj;\
		4123	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4124	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4125	}\
		4126	else\
		4127	{\
		4128	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4129	};\
		4130	var ctx = obj.getContext(\"2d\");\
		4131	ctx.save();\
		4132	var img = new Image();\
		4133	img.src = URL;\
		4134	img.onload = function(){\
		4135	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		4136	ctx.drawImage(img,x0,y0,xsize,ysize);\
		4137	}\
		4138	else\
		4139	{\
		4140	var repeat = \"repeat\";\
		4141	if(img.width > xsize - x0){\
		4142	repeat = \"repeat-y\";\
		4143	}\
		4144	else\
		4145	{\
		4146	if( img.height > ysize -x0 ){\
		4147	repeat = \"repeat-x\";\
		4148	}\
		4149	}\
		4150	var pattern = ctx.createPattern(img,repeat);\
		4151	ctx.rect(x0,y0,xsize,ysize);\
		4152	ctx.fillStyle = pattern;\
		4153	}\
		4154	ctx.fill();\
		4155	};\
		4156	ctx.restore();\
		4157	return;\
7653	schaersvoo	4158	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4159	break;
		4160
		4161	case DRAW_DOTFILL:/* not used for userdraw */
		4162	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
		4163	draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
		4164	var obj;\
		4165	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4166	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4167	}\
		4168	else\
		4169	{\
		4170	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4171	};\
		4172	var ctx = obj.getContext(\"2d\");\
		4173	var x,y;\
		4174	ctx.closePath();\
		4175	ctx.save();\
7645	schaersvoo	4176	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4177	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4178	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4179	for( y = y0 ; y < ysize+dy ; y = y + dy ){\
		4180	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		4181	ctx.closePath();\
		4182	}\
		4183	}\
		4184	ctx.fill();\
		4185	ctx.restore();\
7653	schaersvoo	4186	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4187	break;
7645	schaersvoo	4188
7647	schaersvoo	4189	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	4190	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
7647	schaersvoo	4191	draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	4192	var obj;\
		4193	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4194	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4195	}\
		4196	else\
		4197	{\
		4198	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4199	};\
		4200	var ctx = obj.getContext(\"2d\");\
		4201	var x;\
		4202	var y;\
		4203	ctx.save();\
		4204	ctx.lineWidth = linewidth;\
		4205	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4206	y = ysize;\
		4207	for( x = x0 ; x < xsize ; x = x + dx ){\
		4208	ctx.moveTo(x,y0);\
		4209	ctx.lineTo(xsize,y);\
		4210	y = y - dy;\
		4211	};\
		4212	y = y0;\
		4213	for( x = xsize ; x > 0 ; x = x - dx){\
		4214	ctx.moveTo(x,ysize);\
		4215	ctx.lineTo(x0,y);\
		4216	y = y + dy;\
		4217	};\
		4218	x = x0;\
		4219	for( y = y0 ; y < ysize ; y = y + dy ){\
		4220	ctx.moveTo(xsize,y);\
		4221	ctx.lineTo(x,ysize);\
		4222	x = x + dx;\
		4223	};\
		4224	x = xsize;\
		4225	for( y = ysize ; y > y0 ; y = y - dy ){\
		4226	ctx.moveTo(x,y0);\
		4227	ctx.lineTo(x0,y);\
		4228	x = x - dx;\
		4229	};\
		4230	ctx.stroke();\
		4231	ctx.restore();\
		4232	return;\
7653	schaersvoo	4233	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4234	break;
7647	schaersvoo	4235
		4236	case DRAW_HATCHFILL:/* not used for userdraw */
		4237	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
		4238	draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
		4239	var obj;\
		4240	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4241	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4242	}\
		4243	else\
		4244	{\
		4245	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4246	};\
		4247	var ctx = obj.getContext(\"2d\");\
		4248	var x;\
		4249	var y;\
		4250	ctx.save();\
		4251	ctx.lineWidth = linewidth;\
		4252	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4253	y = ysize;\
		4254	for( x = x0 ; x < xsize ; x = x + dx ){\
		4255	ctx.moveTo(x,y0);\
		4256	ctx.lineTo(xsize,y);\
		4257	y = y - dy;\
		4258	};\
		4259	y = y0;\
		4260	for( x = xsize ; x >= dx ; x = x - dx){\
		4261	ctx.moveTo(x,ysize);\
		4262	ctx.lineTo(x0,y);\
		4263	y = y + dy;\
		4264	};\
		4265	ctx.stroke();\
		4266	ctx.restore();\
		4267	return;\
7653	schaersvoo	4268	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	4269	break;
7614	schaersvoo	4270	case DRAW_CIRCLES:/* used for userdraw */
		4271	fprintf(js_include_file,"\n<!-- draw circles -->\n\
		4272	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_translate,vector){\
		4273	ctx.save();\
		4274	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4275	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4276	ctx.lineWidth = line_width;\
		4277	for(var p = 0 ; p < x_points.length ; p++ ){\
		4278	ctx.beginPath();\
		4279	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		4280	ctx.closePath();\
		4281	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4282	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4283	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4284	ctx.stroke();\
		4285	}\
		4286	ctx.restore();\
		4287	return;\
7653	schaersvoo	4288	};");
7614	schaersvoo	4289	break;
7663	schaersvoo	4290	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		4291	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
		4292	draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4293	ctx.save();\
		4294	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4295	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4296	ctx.lineWidth = line_width;\
		4297	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4298	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4299	ctx.clearRect(0,0,xsize,ysize);\
		4300	ctx.beginPath();\
		4301	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		4302	ctx.moveTo(x_points[p],y_points[p]);\
		4303	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4304	}\
		4305	ctx.closePath();\
		4306	ctx.stroke();\
		4307	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4308	for(var p = 0 ; p < x_points.length ; p++ ){\
		4309	ctx.beginPath();\
		4310	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		4311	ctx.closePath();ctx.fill();ctx.stroke();\
		4312	};\
		4313	ctx.restore();\
		4314	return;\
		4315	};");
		4316	break;
7614	schaersvoo	4317
		4318	case DRAW_SEGMENTS:/* used for userdraw */
		4319	fprintf(js_include_file,"\n<!-- draw segments -->\n\
		4320	draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4321	ctx.save();\
		4322	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4323	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4324	ctx.lineWidth = line_width;\
		4325	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4326	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4327	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4328	ctx.beginPath();\
		4329	ctx.moveTo(x_points[p],y_points[p]);\
		4330	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4331	ctx.closePath();\
		4332	ctx.stroke();\
		4333	}\
		4334	ctx.restore();\
		4335	return;\
		4336	};");
		4337	break;
		4338
		4339	case DRAW_LINES:/* used for userdraw */
		4340	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		4341	function calc_line(x1,x2,y1,y2){\
		4342	var marge = 2;\
		4343	if(x1 < x2+marge && x1>x2-marge){\
		4344	return [x1,0,x1,ysize];\
		4345	};\
		4346	if(y1 < y2+marge && y1>y2-marge){\
		4347	return [0,y1,xsize,y1];\
		4348	};\
		4349	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		4350	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		4351	return [0,Y1,xsize,Y2];\
		4352	};\
		4353	draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4354	ctx.save();\
		4355	var line = new Array(4);\
		4356	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4357	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4358	ctx.lineWidth = line_width;\
		4359	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4360	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4361	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4362	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		4363	ctx.beginPath();\
		4364	ctx.moveTo(line[0],line[1]);\
		4365	ctx.lineTo(line[2],line[3]);\
		4366	ctx.closePath();\
		4367	ctx.stroke();\
		4368	}\
		4369	ctx.restore();\
		4370	return;\
		4371	};");
		4372	break;
		4373
		4374	case DRAW_CROSSHAIRS:/* used for userdraw */
		4375	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
		4376	draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
		4377	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4378	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4379	ctx.lineWidth = line_width;\
		4380	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4381	var x1,x2,y1,y2;\
		4382	for(var p = 0 ; p < x_points.length ; p++ ){\
		4383	x1 = x_points[p] - crosshair_size;\
		4384	x2 = x_points[p] + crosshair_size;\
		4385	y1 = y_points[p] - crosshair_size;\
		4386	y2 = y_points[p] + crosshair_size;\
		4387	ctx.beginPath();\
		4388	ctx.moveTo(x1,y1);\
		4389	ctx.lineTo(x2,y2);\
		4390	ctx.closePath();\
		4391	ctx.stroke();\
		4392	ctx.beginPath();\
		4393	ctx.moveTo(x2,y1);\
		4394	ctx.lineTo(x1,y2);\
		4395	ctx.closePath();\
		4396	ctx.stroke();\
		4397	}\
		4398	ctx.restore();\
		4399	return;\
7653	schaersvoo	4400	};");
7614	schaersvoo	4401	break;
		4402
		4403	case DRAW_RECTS:/* used for userdraw */
		4404	fprintf(js_include_file,"\n<!-- draw rects -->\n\
		4405	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_translate,vector){\
		4406	ctx.save();\
		4407	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4408	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4409	ctx.lineWidth = line_width;\
		4410	ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
		4411	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		4412	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		4413	ctx.beginPath();\
		4414	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		4415	ctx.closePath();\
		4416	if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4417	ctx.stroke();\
		4418	};\
		4419	ctx.restore();\
		4420	return;\
7653	schaersvoo	4421	};");
7614	schaersvoo	4422	break;
		4423
		4424	case DRAW_ROUNDRECTS:/* used for userdraw */
		4425	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
		4426	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_translate,vector){\
		4427	ctx.save();\
		4428	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4429	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4430	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4431	var x,y,w,h,r;\
		4432	for(var p = 0; p < x_points.length; p = p+2){\
		4433	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);\
		4434	ctx.beginPath();ctx.moveTo(x + r, y);\
		4435	ctx.lineTo(x + w - r, y);\
		4436	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		4437	ctx.lineTo(x + w, y + h - r);\
		4438	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		4439	ctx.lineTo(x + r, y + h);\
		4440	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		4441	ctx.lineTo(x, y + r);\
		4442	ctx.quadraticCurveTo(x, y, x + r, y);\
		4443	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		4444	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4445	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		4446	ctx.stroke();\
		4447	}\
		4448	ctx.restore();\
7653	schaersvoo	4449	};");
7614	schaersvoo	4450	break;
		4451
		4452	case DRAW_ELLIPSES:/* not used for userdraw */
		4453	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
		4454	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_translate,vector){\
		4455	var obj;\
		4456	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4457	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4458	}\
		4459	else\
		4460	{\
		4461	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4462	};\
		4463	var ctx = obj.getContext(\"2d\");\
		4464	ctx.save();\
		4465	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4466	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4467	var cx,cy,ry,rx;\
		4468	ctx.lineWidth = line_width;\
		4469	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		4470	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4471	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4472	for(var p=0;p< x_points.length;p = p+2){\
		4473	ctx.beginPath();\
		4474	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		4475	ctx.translate(cx - rx, cy - ry);\
		4476	ctx.scale(rx, ry);\
		4477	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		4478	if( use_filled == 1 ){ctx.fill();}\
		4479	ctx.stroke();\
		4480	};\
		4481	ctx.restore();\
7653	schaersvoo	4482	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4483	break;
		4484
		4485	case DRAW_PATHS: /* used for userdraw */
		4486	fprintf(js_include_file,"\n<!-- draw paths -->\n\
		4487	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_translate,vector){\
		4488	ctx.save();\
		4489	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4490	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4491	ctx.lineWidth = line_width;\
		4492	ctx.lineJoin = \"round\";\
		4493	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4494	ctx.beginPath();\
		4495	ctx.moveTo(x_points[0],y_points[0]);\
		4496	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		4497	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		4498	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4499	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4500	ctx.stroke();\
		4501	ctx.restore();\
		4502	return;\
		4503	};");
		4504
		4505	break;
		4506	case DRAW_ARROWS:/* used for userdraw */
		4507	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
		4508	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_translate,vector){\
		4509	ctx.save();\
		4510	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4511	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4512	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4513	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4514	ctx.lineWidth = line_width;\
		4515	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4516	ctx.lineCap = \"round\";\
		4517	ctx.save();\
		4518	var x1,y1,x2,y2,dx,dy,len;\
		4519	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
		4520	ctx.restore();ctx.save();\
		4521	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		4522	len = Math.sqrt(dxdx+dydy);\
		4523	ctx.translate(x2,y2);\
		4524	ctx.rotate(Math.atan2(dy,dx));\
		4525	ctx.lineCap = \"round\";\
		4526	ctx.beginPath();\
		4527	ctx.moveTo(0,0);\
		4528	ctx.lineTo(-len,0);\
		4529	ctx.closePath();\
		4530	ctx.stroke();\
		4531	ctx.beginPath();\
		4532	ctx.moveTo(0,0);\
		4533	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4534	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4535	ctx.closePath();\
		4536	ctx.fill();\
		4537	if( type == 2 ){\
		4538	ctx.restore();\
		4539	ctx.save();\
		4540	ctx.translate(x1,y1);\
		4541	ctx.rotate(Math.atan2(-dy,-dx));\
		4542	ctx.beginPath();\
		4543	ctx.moveTo(0,0);\
		4544	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4545	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4546	ctx.closePath();\
		4547	ctx.stroke();\
		4548	ctx.fill();\
		4549	}\
		4550	}\
		4551	ctx.restore();\
		4552	return;\
7653	schaersvoo	4553	};");
7614	schaersvoo	4554	break;
		4555
		4556	case DRAW_VIDEO:/* not used for userdraw */
		4557	fprintf(js_include_file,"\n<!-- draw video -->\n\
		4558	draw_video = function(canvas_root_id,x,y,w,h,URL){\
		4559	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4560	var video_div = document.createElement(\"div\");\
		4561	canvas_div.appendChild(video_div);\
		4562	video_div.style.position = \"absolute\";\
		4563	video_div.style.left = x+\"px\";\
		4564	video_div.style.top = y+\"px\";\
		4565	video_div.style.width = w+\"px\";\
		4566	video_div.style.height = h+\"px\";\
		4567	var video = document.createElement(\"video\");\
		4568	video_div.appendChild(video);\
		4569	video.style.width = w+\"px\";\
		4570	video.style.height = h+\"px\";\
		4571	video.autobuffer = true;\
		4572	video.controls = true;video.autoplay = false;\
		4573	var src = document.createElement(\"source\");\
		4574	src.type = \"video/mp4\";\
		4575	src.src = URL;\
		4576	video.appendChild(src);\
		4577	video.load();\
		4578	return;\
7653	schaersvoo	4579	};");
7614	schaersvoo	4580	break;
		4581
		4582	case DRAW_AUDIO:/* not used for userdraw */
		4583	fprintf(js_include_file,"\n<!-- draw audio -->\n\
		4584	draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
		4585	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4586	var audio_div = document.createElement(\"div\");\
		4587	canvas_div.appendChild(audio_div);\
		4588	audio_div.style.position = \"absolute\";\
		4589	audio_div.style.left = x+\"px\";\
		4590	audio_div.style.top = y+\"px\";\
		4591	audio_div.style.width = w+\"px\";\
		4592	audio_div.style.height = h+\"px\";\
		4593	var audio = document.createElement(\"audio\");\
		4594	audio_div.appendChild(audio);\
		4595	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		4596	audio.autobuffer = true;\
		4597	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
		4598	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
		4599	var src1 = document.createElement(\"source\");\
		4600	src1.type = \"audio/ogg\";\
		4601	src1.src = URL1;\
		4602	audio.appendChild(src1);\
		4603	var src2 = document.createElement(\"source\");\
		4604	src2.type = \"audio/mpeg\";\
		4605	src2.src = URL2;\
		4606	audio.appendChild(src2);\
		4607	audio.load();\
		4608	return;\
7653	schaersvoo	4609	};");
7614	schaersvoo	4610	break;
		4611
		4612	case DRAW_HTTP:/* not used for userdraw */
		4613	fprintf(js_include_file,"\n<!-- draw http -->\n\
		4614	draw_http = function(canvas_root_id,x,y,w,h,URL){\
		4615	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4616	var http_div = document.createElement(\"div\");\
		4617	var iframe = document.createElement(\"iframe\");\
		4618	canvas_div.appendChild(http_div);\
		4619	http_div.appendChild(iframe);\
		4620	iframe.src = URL;\
		4621	iframe.setAttribute(\"width\",w);\
		4622	iframe.setAttribute(\"height\",h);\
		4623	return;\
7653	schaersvoo	4624	};");
7614	schaersvoo	4625	break;
		4626
		4627	case DRAW_XML:
		4628	fprintf(js_include_file,"\n<!-- draw xml -->\n\
		4629	draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
		4630	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4631	var xml_div = document.createElement(\"div\");\
		4632	canvas_div.appendChild(xml_div);\
		4633	xml_div.innerHTML = mathml;\
		4634	if(onclick != 0){\
		4635	xml_div.onclick = function(){\
		4636	reply[0] = onclick;\
		4637	alert(\"send \"+onclick+\" ?\");\
		4638	};\
		4639	};\
		4640	xml_div.style.position = \"absolute\";\
		4641	xml_div.style.left = x+\"px\";\
		4642	xml_div.style.top = y+\"px\";\
		4643	xml_div.style.width = w+\"px\";\
		4644	xml_div.style.height = h+\"px\";\
		4645	return;\
7653	schaersvoo	4646	};"
7614	schaersvoo	4647	);
		4648	break;
7654	schaersvoo	4649	case DRAW_SGRAPH:
		4650	/*
		4651	xstart = given
		4652	ystart = given
		4653	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		4654	*/
		4655	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
7658	schaersvoo	4656	draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
		4657	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);};\
		4658	var ctx = obj.getContext(\"2d\");\
		4659	ctx.font = fontfamily;\
		4660	var minor_opacity = 0.8*opacity;\
		4661	ctx.clearRect(0,0,xsize,ysize);\
		4662	var d_x = 1.8*font_size;\
		4663	var d_y = ctx.measureText(\"+ymax+\").width;\
		4664	var dx = xsize / (xmax - xmin);\
		4665	var dy = ysize / (ymax - ymin);\
		4666	var zero_x = d_y + dx;\
		4667	var zero_y = ysize - dy - d_x;\
7659	schaersvoo	4668	var snor_x;\
7654	schaersvoo	4669	if( xstart != xmin){\
7658	schaersvoo	4670	snor_x = 0.1*xsize;\
		4671	}\
		4672	else\
		4673	{\
		4674	snor_x = 0;\
		4675	xstart = xmin;\
		4676	};\
		4677	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4678	ctx.lineWidth = 2;\
		4679	ctx.beginPath();\
		4680	ctx.moveTo(xsize,zero_y);\
		4681	ctx.lineTo(zero_x,zero_y);\
		4682	ctx.lineTo(zero_x,0);\
		4683	ctx.stroke();\
		4684	ctx.closePath();\
		4685	ctx.beginPath();\
		4686	ctx.moveTo(zero_x,zero_y);\
		4687	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		4688	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		4689	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		4690	ctx.lineTo(zero_x + snor_x,zero_y);\
		4691	ctx.stroke();\
		4692	ctx.closePath();\
		4693	ctx.beginPath();\
		4694	var num = xstart;\
7660	schaersvoo	4695	var flipflop = 1;\
7658	schaersvoo	4696	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
		4697	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7660	schaersvoo	4698	if( 0.5*ctx.measureText(num).width > step_x ){\
		4699	if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};\
		4700	};\
		4701	if( flipflop == 1){\
7658	schaersvoo	4702	ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+font_size);\
		4703	}\
		4704	else\
		4705	{\
		4706	ctx.fillText(num,x - 0.5ctx.measureText(num).width,zero_y+2font_size);\
		4707	}\
		4708	num = num + xmajor;\
		4709	};\
		4710	ctx.stroke();\
		4711	ctx.closePath();\
		4712	ctx.lineWidth = 1;\
		4713	ctx.beginPath();\
		4714	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4715	ctx.moveTo(x,zero_y);\
		4716	ctx.lineTo(x,0);\
		4717	};\
		4718	ctx.stroke();\
		4719	ctx.closePath();\
		4720	if( xminor > 1){\
		4721	ctx.lineWidth = 0.5;\
		4722	ctx.beginPath();\
		4723	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4724	var minor_step_x = step_x / xminor;\
		4725	var nx;\
		4726	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		4727	num = 1;\
		4728	for(var p = 1 ; p < xminor ; p++){\
		4729	nx = x + num*minor_step_x;\
		4730	ctx.moveTo(nx,zero_y);\
		4731	ctx.lineTo(nx,0);\
		4732	num++;\
		4733	};\
		4734	};\
		4735	ctx.stroke();\
		4736	ctx.closePath();\
		4737	ctx.beginPath();\
		4738	ctx.lineWidth = 2;\
		4739	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4740	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4741	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		4742	};\
		4743	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		4744	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		4745	};\
		4746	ctx.stroke();\
		4747	ctx.closePath();\
		4748	ctx.lineWidth = 0.5;\
		4749	};\
		4750	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		4751	if( ystart != ymin){\
		4752	snor_y = 0.1*ysize;\
		4753	}\
		4754	else\
		4755	{\
		4756	snor_y = 0;\
		4757	ystart = ymin;\
		4758	};\
		4759	ctx.lineWidth = 2;\
		4760	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4761	ctx.beginPath();\
		4762	ctx.moveTo(zero_x,zero_y);\
		4763	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		4764	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		4765	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		4766	ctx.lineTo(zero_x,zero_y - snor_y);\
		4767	ctx.stroke();\
		4768	ctx.closePath();\
		4769	ctx.beginPath();\
		4770	ctx.lineWidth = 1;\
		4771	num = ystart;\
		4772	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		4773	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		4774	ctx.moveTo(zero_x,y);\
		4775	ctx.lineTo(xsize,y);\
		4776	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		4777	num = num + ymajor;\
		4778	};\
		4779	ctx.stroke();\
		4780	ctx.closePath();\
		4781	if( yminor > 1){\
		4782	ctx.lineWidth = 0.5;\
		4783	ctx.beginPath();\
		4784	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4785	var minor_step_y = step_y / yminor;\
		4786	var ny;\
		4787	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		4788	num = 1;\
		4789	for(var p = 1 ;p < yminor;p++){\
		4790	ny = y + num*minor_step_y;\
		4791	ctx.moveTo(zero_x,ny);\
		4792	ctx.lineTo(xsize,ny);\
		4793	num++;\
		4794	};\
		4795	};\
		4796	ctx.stroke();\
		4797	ctx.closePath();\
		4798	ctx.lineWidth = 2;\
		4799	ctx.beginPath();\
		4800	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4801	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		4802	ctx.moveTo(zero_x,y);\
		4803	ctx.lineTo(zero_x+12,y);\
		4804	};\
		4805	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		4806	ctx.moveTo(zero_x,y);\
		4807	ctx.lineTo(zero_x+6,y);\
		4808	};\
		4809	ctx.stroke();\
		4810	ctx.closePath();\
		4811	};\
		4812	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
7654	schaersvoo	4813	if( typeof legend%d !== 'undefined' ){\
		4814	ctx.globalAlpha = 1.0;\
		4815	var y_offset = 2*font_size;\
		4816	var txt;var txt_size;\
		4817	var x_offset = xsize - 2*font_size;\
		4818	var l_length = legend%d.length;var barcolor = new Array();\
		4819	if( typeof legendcolors%d !== 'undefined' ){\
		4820	for(var p = 0 ; p < l_length ; p++){\
		4821	barcolor[p] = legendcolors%d[p];\
		4822	};\
		4823	}else{\
		4824	if( barcolor.length == 0 ){\
		4825	for(var p = 0 ; p < l_length ; p++){\
		4826	barcolor[p] = stroke_color;\
		4827	};\
		4828	};\
		4829	};\
		4830	for(var p = 0; p < l_length; p++){\
		4831	ctx.fillStyle = barcolor[p];\
		4832	txt = legend%d[p];\
		4833	txt_size = ctx.measureText(txt).width;\
		4834	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		4835	y_offset = parseInt(y_offset + 1.5*font_size);\
		4836	};\
		4837	};\
7660	schaersvoo	4838	if( typeof xaxislabel !== 'undefined' ){\
7658	schaersvoo	4839	ctx.fillStyle = \'#000000\';\
		4840	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		4841	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		4842	};\
7660	schaersvoo	4843	if( typeof yaxislabel !== 'undefined'){\
7658	schaersvoo	4844	ctx.save();\
		4845	ctx.fillStyle = \'#000000\';\
		4846	var txt_size = ctx.measureText(yaxislabel).width;\
		4847	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		4848	ctx.rotate(-0.5*Math.PI);\
		4849	ctx.fillText(yaxislabel,0,0);\
		4850	ctx.save();\
		4851	};\
7654	schaersvoo	4852	};\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);
		4853	break;
7614	schaersvoo	4854
		4855	case DRAW_GRID:/* not used for userdraw */
		4856	fprintf(js_include_file,"\n<!-- draw grid -->\n\
		4857	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_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
		4858	var obj;\
		4859	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4860	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4861	}\
		4862	else\
		4863	{\
		4864	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4865	};\
		4866	var ctx = obj.getContext(\"2d\");\
		4867	ctx.clearRect(0,0,xsize,ysize);\
		4868	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4869	ctx.save();\
		4870	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		4871	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		4872	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4873	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		4874	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		4875	ctx.font = font_family;\
		4876	var xstep = xsize*xmajor/(xmax - xmin);\
		4877	var ystep = ysize*ymajor/(ymax - ymin);\
		4878	var x2step = xstep / xminor;\
		4879	var y2step = ystep / yminor;\
7654	schaersvoo	4880	var zero_x;var zero_y;var f_x;var f_y;\
		4881	if(xmin < 0 ){zero_x = x2px(0);f_x = 1;}else{zero_x = x2px(xmin);f_x = -1;}\
		4882	if(ymin < 0 ){zero_y = y2px(0);f_y = 1;}else{zero_y = y2px(ymin);f_y = -1;}\
7614	schaersvoo	4883	ctx.beginPath();\
		4884	ctx.lineWidth = line_width;\
		4885	ctx.strokeStyle = stroke_color;\
		4886	for(var p = zero_x ; p < xsize; p = p + xstep){\
		4887	ctx.moveTo(p,0);\
		4888	ctx.lineTo(p,ysize);\
		4889	};\
		4890	for(var p = zero_x ; p > 0; p = p - xstep){\
		4891	ctx.moveTo(p,0);\
		4892	ctx.lineTo(p,ysize);\
		4893	};\
		4894	for(var p = zero_y ; p < ysize; p = p + ystep){\
		4895	ctx.moveTo(0,p);\
		4896	ctx.lineTo(xsize,p);\
		4897	};\
		4898	for(var p = zero_y ; p > 0; p = p - ystep){\
		4899	ctx.moveTo(0,p);\
		4900	ctx.lineTo(xsize,p);\
		4901	};\
		4902	if( typeof xaxislabel !== 'undefined' ){\
		4903	ctx.save();\
		4904	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		4905	var corr = ctx.measureText(xaxislabel).width;\
		4906	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		4907	ctx.restore();\
		4908	};\
		4909	if( typeof yaxislabel !== 'undefined' ){\
		4910	ctx.save();\
		4911	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		4912	corr = ctx.measureText(yaxislabel).width;\
		4913	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		4914	ctx.rotate(-0.5*Math.PI);\
		4915	ctx.fillText(yaxislabel,0,0);\
		4916	ctx.restore();\
		4917	};\
		4918	ctx.stroke();\
		4919	ctx.closePath();\
		4920	if( use_axis == 1 ){\
		4921	ctx.beginPath();\
		4922	ctx.strokeStyle = stroke_color;\
		4923	ctx.lineWidth = 0.6*line_width;\
		4924	for(var p = zero_x ; p < xsize; p = p + x2step){\
		4925	ctx.moveTo(p,0);\
		4926	ctx.lineTo(p,ysize);\
		4927	};\
		4928	for(var p = zero_x ; p > 0; p = p - x2step){\
		4929	ctx.moveTo(p,0);\
		4930	ctx.lineTo(p,ysize);\
		4931	};\
		4932	for(var p = zero_y ; p < ysize; p = p + y2step){\
		4933	ctx.moveTo(0,p);\
		4934	ctx.lineTo(xsize,p);\
		4935	};\
		4936	for(var p = zero_y ; p > 0; p = p - y2step){\
		4937	ctx.moveTo(0,p);\
		4938	ctx.lineTo(xsize,p);\
		4939	};\
		4940	ctx.stroke();\
		4941	ctx.closePath();\
		4942	ctx.beginPath();\
		4943	ctx.lineWidth = 2*line_width;\
		4944	ctx.strokeStyle = axis_color;\
		4945	ctx.moveTo(0,zero_y);\
		4946	ctx.lineTo(xsize,zero_y);\
		4947	ctx.moveTo(zero_x,0);\
		4948	ctx.lineTo(zero_x,ysize);\
		4949	ctx.stroke();\
		4950	ctx.closePath();\
		4951	ctx.lineWidth = line_width+0.5;\
		4952	ctx.beginPath();\
		4953	for(var p = zero_x ; p < xsize; p = p + xstep){\
		4954	ctx.moveTo(p,zero_y-tics_length);\
		4955	ctx.lineTo(p,zero_y+tics_length);\
		4956	};\
		4957	for(var p = zero_x ; p > 0; p = p - xstep){\
		4958	ctx.moveTo(p,zero_y-tics_length);\
		4959	ctx.lineTo(p,zero_y+tics_length);\
		4960	};\
		4961	for(var p = zero_y ; p < ysize; p = p + ystep){\
		4962	ctx.moveTo(zero_x-tics_length,p);\
		4963	ctx.lineTo(zero_x+tics_length,p);\
		4964	};\
		4965	for(var p = zero_y ; p > 0; p = p - ystep){\
		4966	ctx.moveTo(zero_x-tics_length,p);\
		4967	ctx.lineTo(zero_x+tics_length,p);\
		4968	};\
		4969	for(var p = zero_x ; p < xsize; p = p + x2step){\
		4970	ctx.moveTo(p,zero_y-0.5*tics_length);\
		4971	ctx.lineTo(p,zero_y+0.5*tics_length);\
		4972	};\
		4973	for(var p = zero_x ; p > 0; p = p - x2step){\
		4974	ctx.moveTo(p,zero_y-0.5*tics_length);\
		4975	ctx.lineTo(p,zero_y+0.5*tics_length);\
		4976	};\
		4977	for(var p = zero_y ; p < ysize; p = p + y2step){\
		4978	ctx.moveTo(zero_x-0.5*tics_length,p);\
		4979	ctx.lineTo(zero_x+0.5*tics_length,p);\
		4980	};\
		4981	for(var p = zero_y ; p > 0; p = p - y2step){\
		4982	ctx.moveTo(zero_x-0.5*tics_length,p);\
		4983	ctx.lineTo(zero_x+0.5*tics_length,p);\
		4984	};\
		4985	ctx.stroke();\
		4986	ctx.closePath();\
		4987	if( use_axis_numbering == 1 ){\
		4988	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		4989	if( x_strings != null ){\
		4990	var f = 1.4;\
		4991	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
		4992	for(var p = 0 ; p < len ; p = p+2){\
		4993	var x_nums = x2px(eval(x_strings[p]));\
		4994	var x_text = x_strings[p+1];\
		4995	corr = ctx.measureText(x_text).width;\
		4996	skip = 1.2*corr/xstep;\
		4997	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		4998	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		4999	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
		5000	}\
		5001	}\
		5002	else\
		5003	{\
7654	schaersvoo	5004	corr=0;skip = 1;cnt = px2x(zero_x);\
7614	schaersvoo	5005	prec = Math.log(precision)/(Math.log(10));\
7654	schaersvoo	5006	for( var p = zero_x ; p < xsize ; p = p+xstep){\
7614	schaersvoo	5007	if(skip == 0 ){\
		5008	disp_cnt = cnt.toFixed(prec);\
		5009	corr = ctx.measureText(disp_cnt).width;\
		5010	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5011	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5012	}\
		5013	else\
		5014	{\
		5015	skip--;\
		5016	};\
		5017	cnt = cnt + xmajor;\
		5018	};\
7654	schaersvoo	5019	cnt = px2x(zero_x);skip = 1;\
		5020	for( var p = zero_x ; p > 0 ; p = p-xstep){\
7614	schaersvoo	5021	if(skip == 0 ){\
		5022	disp_cnt = cnt.toFixed(prec);\
		5023	corr = ctx.measureText(disp_cnt).width;\
		5024	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5025	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5026	}\
		5027	else\
		5028	{\
		5029	skip--;\
		5030	};\
		5031	cnt = cnt - xmajor;\
		5032	};\
		5033	};\
		5034	if( y_strings != null ){\
		5035	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
		5036	for(var p = 0 ; p < len ; p = p+2){\
		5037	var y_nums = y2px(eval(y_strings[p]));\
		5038	var y_text = y_strings[p+1];\
		5039	var f = 1.4;\
		5040	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		5041	if( corr > zero_x){corr = parseInt(zero_x+2); }\
		5042	ctx.fillText(y_text,zero_x - corr,y_nums);\
		5043	};\
		5044	}\
		5045	else\
		5046	{\
7654	schaersvoo	5047	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5048	for( var p = zero_y ; p < ysize ; p = p+ystep){\
7614	schaersvoo	5049	if(skip == 0 ){\
		5050	skip = parseInt(1.4*font_size/ystep);\
		5051	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5052	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5053	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5054	}\
		5055	else\
		5056	{\
		5057	skip--;\
		5058	};\
		5059	cnt = cnt - ymajor;\
		5060	}\
7654	schaersvoo	5061	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5062	for( var p = zero_y ; p > 0 ; p = p-ystep){\
7614	schaersvoo	5063	if(skip == 0 ){\
		5064	skip = parseInt(1.4*font_size/ystep);\
		5065	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5066	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5067	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5068	}\
		5069	else\
		5070	{\
		5071	skip--;\
		5072	};\
		5073	cnt = cnt + ymajor;\
		5074	}\
		5075	};\
		5076	};\
		5077	ctx.strokeStyle = stroke_color;\
		5078	ctx.lineWidth = 2;\
		5079	ctx.beginPath();\
		5080	ctx.rect(0,0,xsize,ysize);\
		5081	ctx.closePath();\
		5082	ctx.stroke();\
		5083	};\
		5084	if( typeof linegraph_0 !== 'undefined' ){\
		5085	ctx.restore();\
		5086	ctx.save();\
		5087	ctx.globalAlpha = 1.0;\
		5088	var i = 0;\
		5089	var line_name = eval('linegraph_'+i);\
		5090	while ( typeof line_name !== 'undefined' ){\
		5091	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		5092	ctx.lineWidth = parseInt(line_name[1]);\
		5093	if(line_name[2] == \"1\"){\
		5094	var d1 = parseInt(line_name[3]);\
		5095	var d2 = parseInt(line_name[4]);\
		5096	if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
		5097	}\
		5098	else\
		5099	{\
		5100	if(ctx.setLineDash){ctx.setLineDash = null;}\
		5101	if(ctx.mozDash){ctx.mozDash = null;}\
		5102	};\
		5103	var data_x = new Array();\
		5104	var data_y = new Array();\
		5105	var lb = line_name.length;\
		5106	var idx = 0;\
		5107	for( var p = 5 ; p < lb ; p = p + 2 ){\
		5108	data_x[idx] = x2px(line_name[p]);\
		5109	data_y[idx] = y2px(line_name[p+1]);\
		5110	idx++;\
		5111	};\
		5112	for( var p = 0; p < idx ; p++){\
		5113	ctx.beginPath();\
		5114	ctx.moveTo(data_x[p],data_y[p]);\
		5115	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		5116	ctx.stroke();\
		5117	ctx.closePath();\
		5118	};\
		5119	i++;\
		5120	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		5121	};\
		5122	};\
		5123	var barcolor = new Array();\
		5124	if( typeof barchart%d !== 'undefined' ){\
		5125	ctx.restore();\
		5126	ctx.save();\
		5127	ctx.globalAlpha = 1.0;\
		5128	var bar_x = new Array();\
		5129	var bar_y = new Array();\
		5130	var lb = barchart%d.length;\
		5131	var idx = 0;\
		5132	for( var p = 0 ; p < lb ; p = p + 3 ){\
		5133	bar_x[idx] = x2px(barchart%d[p]);\
		5134	bar_y[idx] = y2px(barchart%d[p+1]);\
		5135	barcolor[idx] = barchart%d[p+2];\
		5136	idx++;\
		5137	};\
		5138	var dx = parseInt(0.6*xstep);\
		5139	ctx.globalAlpha = fill_opacity;\
		5140	for( var p = 0; p < idx ; p++ ){\
		5141	ctx.beginPath();\
		5142	ctx.strokeStyle = barcolor[p];\
		5143	ctx.fillStyle = barcolor[p];\
		5144	ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
		5145	ctx.fill();\
		5146	ctx.stroke();\
		5147	ctx.closePath();\
		5148	};\
		5149	};\
		5150	if( typeof legend%d !== 'undefined' ){\
		5151	ctx.globalAlpha = 1.0;\
		5152	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		5153	var y_offset = 2*font_size;\
		5154	var txt;var txt_size;\
		5155	var x_offset = xsize - 2*font_size;\
		5156	var l_length = legend%d.length;\
		5157	if( typeof legendcolors%d !== 'undefined' ){\
		5158	for(var p = 0 ; p < l_length ; p++){\
		5159	barcolor[p] = legendcolors%d[p];\
		5160	};\
		5161	}else{\
		5162	if( barcolor.length == 0 ){\
		5163	for(var p = 0 ; p < l_length ; p++){\
		5164	barcolor[p] = stroke_color;\
		5165	};\
		5166	};\
		5167	};\
		5168	for(var p = 0; p < l_length; p++){\
		5169	ctx.fillStyle = barcolor[p];\
		5170	txt = legend%d[p];\
		5171	txt_size = ctx.measureText(txt).width;\
		5172	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		5173	y_offset = parseInt(y_offset + 1.5*font_size);\
		5174	};\
		5175	};\
		5176	ctx.restore();\
		5177	return;\
7653	schaersvoo	5178	};",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,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5179	break;
		5180
		5181	case DRAW_PIECHART:
		5182	fprintf(js_include_file,"\n<!-- draw piechars -->\n\
		5183	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
		5184	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5185	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5186	}\
		5187	else\
		5188	{\
		5189	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5190	};\
		5191	var ld = data_color_list.length;\
		5192	var sum = 0;\
		5193	var idx = 0;\
		5194	var colors = new Array();\
		5195	var data = new Array();\
		5196	for(var p = 0;p < ld; p = p + 2){\
		5197	data[idx] = parseFloat(data_color_list[p]);\
		5198	sum = sum + data[idx];\
		5199	colors[idx] = data_color_list[p+1];\
		5200	idx++;\
		5201	};\
		5202	var ctx = obj.getContext(\"2d\");\
		5203	ctx.save();\
		5204	var angle;\
		5205	var angle_end = 0;\
		5206	var offset = Math.PI / 2;\
		5207	ctx.globalAlpha = fill_opacity;\
		5208	for(var p=0; p < idx; p++){\
		5209	ctx.beginPath();\
		5210	ctx.fillStyle = colors[p];\
		5211	ctx.moveTo(x_center,y_center);\
		5212	angle = Math.PI * (2 * data[p] / sum);\
		5213	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		5214	ctx.lineTo(x_center, y_center);\
		5215	ctx.fill();\
		5216	ctx.closePath();\
		5217	angle_end = angle_end + angle;\
		5218	};\
		5219	if( typeof legend%d !== 'undefined' ){\
		5220	ctx.globalAlpha = 1.0;\
		5221	ctx.font = font_size+\"px \"+font_family;\
		5222	var y_offset = font_size; \
		5223	var x_offset = 0;\
		5224	var txt;var txt_size;\
		5225	for(var p = 0; p < idx; p++){\
		5226	ctx.fillStyle = colors[p];\
		5227	txt = legend%d[p];\
		5228	txt_size = ctx.measureText(txt).width;\
		5229	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
		5230	ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
		5231	y_offset = parseInt(y_offset + 1.5*font_size);\
		5232	};\
		5233	};\
		5234	ctx.restore();\
7653	schaersvoo	5235	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5236
		5237	break;
		5238	case DRAW_ARCS:
		5239	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
		5240	draw_arc = function(canvas_type,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		5241	var obj;\
		5242	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5243	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5244	}\
		5245	else\
		5246	{\
		5247	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5248	};\
		5249	var ctx = obj.getContext(\"2d\");\
		5250	ctx.save();\
		5251	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
		5252	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		5253	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		5254	if(end < start){var tmp = end;end = start;start=tmp;};\
		5255	start=360-start;\
		5256	end=360-end;\
		5257	ctx.lineWidth = line_width;\
		5258	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5259	if( use_filled == 1 ){\
		5260	ctx.beginPath();\
		5261	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		5262	var x1 = xc + rMath.cos(Math.PIstart/180);\
		5263	var y1 = yc + rMath.sin(Math.PIstart/180);\
		5264	var x2 = xc + rMath.cos(Math.PIend/180);\
		5265	var y2 = yc + rMath.sin(Math.PIend/180);\
		5266	ctx.beginPath();\
		5267	ctx.moveTo(x1,y1);\
		5268	ctx.lineTo(xc,yc);\
		5269	ctx.moveTo(xc,yc);\
		5270	ctx.lineTo(x2,y2);\
		5271	ctx.closePath();\
		5272	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5273	ctx.fill();\
		5274	ctx.stroke();\
		5275	}\
		5276	else\
		5277	{\
		5278	ctx.beginPath();\
		5279	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5280	ctx.stroke();\
		5281	ctx.closePath();\
		5282	}\
		5283	ctx.restore();\
7653	schaersvoo	5284	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5285
		5286	break;
		5287	case DRAW_TEXTS:
		5288	fprintf(js_include_file,"\n<!-- draw text -->\n\
		5289	draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
		5290	var obj;\
		5291	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5292	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5293	}\
		5294	else\
		5295	{\
		5296	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5297	};\
		5298	var ctx = obj.getContext(\"2d\");\
		5299	if(angle2 == 0 && angle != 0){\
		5300	ctx.save();\
		5301	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5302	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5303	};\
		5304	if( font_family.indexOf('px') != null ){\
		5305	ctx.font = font_family;\
		5306	}\
		5307	else\
		5308	{\
		5309	ctx.font = \"+font_size+'px '+font_family \";\
		5310	};\
		5311	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5312	if(angle2 != 0){\
		5313	ctx.save();\
		5314	ctx.translate(x,y);\
		5315	ctx.rotate((360-angle2)*(Math.PI / 180));\
		5316	ctx.fillText(text,0,0);\
		5317	ctx.restore();\
		5318	}else{ctx.fillText(text,x,y);};\
		5319	ctx.restore();\
		5320	return;\
7653	schaersvoo	5321	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5322
		5323	break;
		5324	case DRAW_CURVE:
		5325	fprintf(js_include_file,"\n<!-- draw curve -->\n\
		5326	draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		5327	var obj;\
		5328	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5329	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5330	}\
		5331	else\
		5332	{\
		5333	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5334	};\
		5335	var ctx = obj.getContext(\"2d\");\
		5336	ctx.save();\
		5337	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5338	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5339	ctx.beginPath();ctx.lineWidth = line_width;\
		5340	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5341	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5342	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		5343	for(var p = 1 ; p < x_points.length ; p++){\
		5344	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		5345	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		5346	}\
		5347	else\
		5348	{\
		5349	ctx.stroke();\
		5350	ctx.beginPath();\
		5351	p++;\
		5352	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		5353	};\
		5354	};\
		5355	ctx.stroke();\
		5356	ctx.restore();\
7653	schaersvoo	5357	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5358	break;
		5359
		5360	case DRAW_INPUTS:
		5361	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
		5362	draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
		5363	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5364	var input = document.createElement(\"input\");\
		5365	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5366	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5367	input.setAttribute(\"size\",size);\
		5368	input.setAttribute(\"value\",value);\
		5369	if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
7653	schaersvoo	5370	canvas_div.appendChild(input);};");
7614	schaersvoo	5371	break;
		5372
		5373	case DRAW_TEXTAREAS:
		5374	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
		5375	draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
		5376	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5377	var textarea = document.createElement(\"textarea\");\
		5378	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5379	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5380	textarea.setAttribute(\"cols\",cols);\
		5381	textarea.setAttribute(\"rows\",rows);\
		5382	textarea.innerHTML = value;\
7653	schaersvoo	5383	canvas_div.appendChild(textarea);};");
7614	schaersvoo	5384	break;
		5385
		5386	case DRAW_PIXELS:
		5387	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
		5388	draw_setpixel = function(x,y,color,opacity,pixelsize){\
		5389	var canvas = create_canvas%d(10,xsize,ysize);\
		5390	var d = 0.5*pixelsize;\
		5391	var ctx = canvas.getContext(\"2d\");\
		5392	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		5393	ctx.clearRect(0,0,xsize,ysize);\
		5394	for(var p=0; p<x.length;p++){\
		5395	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		5396	};\
		5397	ctx.fill();ctx.stroke();\
		5398	};",canvas_root_id);
		5399	break;
		5400
		5401	case DRAW_CLOCK:
		5402	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		5403	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		5404	var clock_ctx = clock_canvas.getContext(\"2d\");\
		5405	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
		5406	clock_ctx.save();\
		5407	this.type = type \|\| 0;\
		5408	this.interaction = interaction \|\| 0;\
		5409	this.H = H \|\| parseInt(110*(Math.random()));\
		5410	this.M = M \|\| parseInt(590*(Math.random()));\
		5411	this.S = S \|\| parseInt(590*(Math.random()));\
		5412	this.xc = xc \|\| xsize/2;\
		5413	this.yc = yc \|\| ysize/2;\
		5414	this.radius = radius \|\| xsize/4;\
		5415	var font_size = parseInt(0.2*this.radius);\
		5416	this.H_color = h_color \|\| \"blue\";\
		5417	this.M_color = m_color \|\| \"blue\";\
		5418	this.S_color = s_color \|\| \"blue\";\
		5419	this.fg_color = fg_color \|\| \"red\";\
		5420	this.bg_color = bg_color \|\| \"white\";\
		5421	clock_ctx.translate(this.xc,this.yc);\
		5422	clock_ctx.beginPath();\
		5423	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		5424	clock_ctx.fillStyle = this.bg_color;\
		5425	clock_ctx.fill();\
		5426	clock_ctx.closePath();\
		5427	clock_ctx.beginPath();\
		5428	clock_ctx.font = font_size+\"px Arial\";\
		5429	clock_ctx.fillStyle = this.fg_color;\
		5430	clock_ctx.textAlign = \"center\";\
		5431	clock_ctx.textBaseline = 'middle';\
		5432	var angle;var x1,y1,x2,y2;\
		5433	var angle_cos;var angle_sin;\
		5434	switch(type){\
		5435	case 0:clock_ctx.beginPath();\
		5436	for(var p = 1; p <= 12 ; p++){\
		5437	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5438	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5439	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5440	clock_ctx.moveTo(x1,y1);\
		5441	clock_ctx.lineTo(x2,y2);\
		5442	};\
		5443	for(var p = 1; p <= 60 ; p++){\
		5444	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5445	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5446	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5447	clock_ctx.moveTo(x1,y1);\
		5448	clock_ctx.lineTo(x2,y2);\
		5449	};\
		5450	clock_ctx.closePath();\
		5451	clock_ctx.stroke();\
		5452	break;\
		5453	case 1:\
		5454	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;\
		5455	case 2:for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 1.1this.radiusMath.cos(angle);y1 = 1.1this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};\
		5456	clock_ctx.beginPath();\
		5457	for(var p = 1; p <= 12 ; p++){\
		5458	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5459	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5460	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5461	clock_ctx.moveTo(x1,y1);\
		5462	clock_ctx.lineTo(x2,y2);\
		5463	};\
		5464	for(var p = 1; p <= 60 ; p++){\
		5465	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5466	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5467	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5468	clock_ctx.moveTo(x1,y1);\
		5469	clock_ctx.lineTo(x2,y2);\
		5470	};\
		5471	clock_ctx.closePath();\
		5472	clock_ctx.stroke();\
		5473	break;\
		5474	};\
		5475	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		5476	clock_ctx.rotate(angle);\
		5477	clock_ctx.beginPath();\
		5478	clock_ctx.moveTo(-3, -2);\
		5479	clock_ctx.lineTo(-3, 2);\
		5480	clock_ctx.lineTo(this.radius * 0.7, 1);\
		5481	clock_ctx.lineTo(this.radius * 0.7, -1);\
		5482	clock_ctx.fillStyle = this.H_color;\
		5483	clock_ctx.fill();\
		5484	clock_ctx.rotate(-angle);\
		5485	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		5486	clock_ctx.rotate(angle);\
		5487	clock_ctx.beginPath();\
		5488	clock_ctx.moveTo(-3, -2);\
		5489	clock_ctx.lineTo(-3, 2);\
		5490	clock_ctx.lineTo(this.radius * 0.8, 1);\
		5491	clock_ctx.lineTo(this.radius * 0.8, -1);\
		5492	clock_ctx.fillStyle = this.M_color;\
		5493	clock_ctx.fill();\
		5494	clock_ctx.rotate(-angle);\
		5495	angle = (this.S - 15) * 2 * Math.PI / 60;\
		5496	clock_ctx.rotate(angle);\
		5497	clock_ctx.beginPath();\
		5498	clock_ctx.moveTo(0,0);\
		5499	clock_ctx.lineTo(this.radius * 0.95, 0);\
		5500	clock_ctx.lineTo(this.radius * 0.9, -1);\
		5501	clock_ctx.strokeStyle = this.S_color;\
		5502	clock_ctx.stroke();\
		5503	clock_ctx.restore();\
7653	schaersvoo	5504	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	5505	break;
		5506
		5507	case DRAW_LATTICE:
		5508	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
		5509	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_translate,vector){\
		5510	var obj;\
		5511	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5512	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5513	}\
		5514	else\
		5515	{\
		5516	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5517	};\
		5518	var ctx = obj.getContext(\"2d\");\
		5519	ctx.save();\
		5520	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5521	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5522	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5523	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5524	var radius = line_width;\
		5525	var x = 0;\
		5526	var y = 0;\
		5527	var x_step_px = xsize/(xmax-xmin);\
		5528	var y_step_px = ysize/(ymax-ymin);\
		5529	var xv1 = dx1*x_step_px;\
		5530	var yv1 = dy1*y_step_px;\
		5531	var xv2 = dx2*x_step_px;\
		5532	var yv2 = dy2*y_step_px;\
		5533	for(var p = 0; p < n1 ;p++){\
		5534	x = p*xv1 + x0;\
		5535	y = p*yv1 + y0;\
		5536	for(var c = 0; c < n2 ; c++){\
		5537	ctx.beginPath();\
		5538	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		5539	ctx.fill();\
		5540	ctx.stroke();\
		5541	ctx.closePath();\
		5542	};\
		5543	};\
		5544	ctx.restore();\
		5545	return;\
7653	schaersvoo	5546	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5547	break;
7735	schaersvoo	5548	case DRAW_XYLOGSCALE:
		5549	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
7739	schaersvoo	5550	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){\n\
7735	schaersvoo	5551	var obj;\n\
		5552	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5553	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5554	}\n\
		5555	else\n\
		5556	{\n\
		5557	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5558	};\n\
		5559	var ctx = obj.getContext(\"2d\");\n\
		5560	ctx.clearRect(0,0,xsize,ysize);\
		5561	ctx.save();\n\
7739	schaersvoo	5562	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
		5563	var x_min = Math.log(xmin)/Math.log(xlogbase);\n\
		5564	var x_max = Math.log(xmax)/Math.log(xlogbase);\n\
		5565	var y_min = Math.log(ymin)/Math.log(ylogbase);\n\
		5566	var y_max = Math.log(ymax)/Math.log(ylogbase);\n\
		5567	if(use_axis_numbering == 1){\
		5568	ctx.font = font_family;\n\
		5569	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\n\
		5570	ymarge = parseInt(1.5*font_size);\n\
		5571	ctx.save();\n\
		5572	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5573	ctx.rect(0,0,xmarge,ysize);\n\
		5574	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5575	ctx.fill();\n\
		5576	ctx.restore();\n\
		5577	}else{xmarge = 0;ymarge = 0;};\n\
7735	schaersvoo	5578	if( typeof xaxislabel !== 'undefined' ){\
7739	schaersvoo	5579	ctx.save();\n\
		5580	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5581	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5582	corr = ctx.measureText(xaxislabel).width;\n\
		5583	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5584	ctx.restore();\n\
		5585	};\n\
7735	schaersvoo	5586	if( typeof yaxislabel !== 'undefined' ){\
7739	schaersvoo	5587	ctx.save();\n\
		5588	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5589	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5590	corr = ctx.measureText(yaxislabel).width;\n\
		5591	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5592	ctx.rotate(-0.5*Math.PI);\n\
		5593	ctx.fillText(yaxislabel,0,0);\n\
		5594	ctx.restore();\n\
		5595	};\n\
		5596	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5597	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5598	for(var p = x_min; p <= x_max ; p++){\n\
7739	schaersvoo	5599	num = Math.pow(xlogbase,p);\n\n\
7735	schaersvoo	5600	for(var i = 1 ; i < xlogbase ; i++){\n\
7739	schaersvoo	5601	x_e = x2px(i*num);\n\n\
7735	schaersvoo	5602	if( i == 1 ){\
7739	schaersvoo	5603	ctx.lineWidth = line_width;\n\n\
		5604	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\n\
7738	schaersvoo	5605	if( use_axis_numbering == 1 && p > x_min){\
7739	schaersvoo	5606	xtxt = xlogbase+'^'+p.toFixed(0);\n\
		5607	corr = 0.5*(ctx.measureText(xtxt).width);\n\
		5608	ctx.fillText(xtxt,x_e - corr,ysize - 4);\n\
		5609	};\n\
7735	schaersvoo	5610	}else{\
7739	schaersvoo	5611	ctx.lineWidth = 0.2*line_width;\n\n\
		5612	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5613	};\n\
7738	schaersvoo	5614	if( x_e >= xmarge ){\
		5615	ctx.beginPath();\n\
		5616	ctx.moveTo(x_e,0);\n\
7739	schaersvoo	5617	ctx.lineTo(x_e,ysize - ymarge);\n\n\
7738	schaersvoo	5618	ctx.stroke();\n\
		5619	ctx.closePath();\n\
		5620	};\
7735	schaersvoo	5621	};\n\
		5622	};\n\
		5623	for(var p = y_min; p <= y_max ; p++){\n\
		5624	num = Math.pow(ylogbase,p);\n\
		5625	for(var i = 1 ; i < ylogbase ; i++){\n\
		5626	y_e = y2px(i*num);\n\
7739	schaersvoo	5627	if( i == 1 ){\n\
7735	schaersvoo	5628	ctx.lineWidth = line_width;\n\
		5629	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5630	if( use_axis_numbering == 1 && p > y_min){\n\
		5631	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\n\
		5632	};\n\
		5633	}else{\n\
7735	schaersvoo	5634	ctx.lineWidth = 0.2*line_width;\n\
7739	schaersvoo	5635	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5636	};\n\
7735	schaersvoo	5637	ctx.beginPath();\n\
7738	schaersvoo	5638	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5639	ctx.lineTo(xsize,y_e);\n\
		5640	ctx.stroke();\n\
		5641	ctx.closePath();\n\
		5642	};\n\
		5643	};\n\
		5644	ctx.restore();\
		5645	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5646	break;
7614	schaersvoo	5647
7735	schaersvoo	5648	case DRAW_XLOGSCALE:
		5649	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
7739	schaersvoo	5650	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){\n\
7735	schaersvoo	5651	var obj;\n\
		5652	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5653	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5654	}\n\
		5655	else\n\
		5656	{\n\
		5657	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5658	};\n\
		5659	var ctx = obj.getContext(\"2d\");\n\
		5660	ctx.clearRect(0,0,xsize,ysize);\
		5661	ctx.save();\n\
		5662	ctx.lineWidth = line_width;\n\
7739	schaersvoo	5663	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	5664	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		5665	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		5666	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	5667	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		5668	if(use_axis_numbering == 1){\
		5669	ctx.font = font_family;\n\
		5670	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\n\
		5671	ymarge = parseInt(1.5*font_size);\n\
		5672	ctx.save();\n\
		5673	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5674	ctx.rect(0,0,xmarge,ysize);\n\
		5675	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5676	ctx.fill();\n\
		5677	ctx.restore();\n\
		5678	}else{xmarge = 0;ymarge = 0;};\n\
		5679	if( typeof xaxislabel !== 'undefined' ){\
		5680	ctx.save();\n\
		5681	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5682	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5683	corr = ctx.measureText(xaxislabel).width;\n\
		5684	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5685	ctx.restore();\n\
		5686	};\n\
		5687	if( typeof yaxislabel !== 'undefined' ){\
		5688	ctx.save();\n\
		5689	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5690	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5691	corr = ctx.measureText(yaxislabel).width;\n\
		5692	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5693	ctx.rotate(-0.5*Math.PI);\n\
		5694	ctx.fillText(yaxislabel,0,0);\n\
		5695	ctx.restore();\n\
		5696	};\n\
		5697	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5698	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5699	for(var p = x_min; p <= x_max ; p++){\n\
		5700	num = Math.pow(xlogbase,p);\n\
		5701	for(var i = 1 ; i < xlogbase ; i++){\n\
		5702	x_e = x2px(i*num);\n\
		5703	if( i == 1 ){\
7739	schaersvoo	5704	ctx.lineWidth = line_width;\n\
		5705	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5706	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	5707	xtxt = xlogbase+'^'+p.toFixed(0);\
		5708	corr = 0.5*(ctx.measureText(xtxt).width);\
		5709	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		5710	};\
		5711	}else{\
		5712	ctx.lineWidth = 0.2*line_width;\n\
		5713	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5714	};\
7739	schaersvoo	5715	if( x_e >= xmarge ){\
		5716	ctx.beginPath();\n\
		5717	ctx.moveTo(x_e,0);\n\
		5718	ctx.lineTo(x_e,ysize - ymarge);\n\n\
		5719	ctx.stroke();\n\
		5720	ctx.closePath();\n\
		5721	};\
		5722	};\
7735	schaersvoo	5723	};\n\
		5724	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		5725	var minor_step = stepy / yminor;\
7739	schaersvoo	5726	for(var y = 0 ; y < ysize - xmarge ; y = y + stepy){\
7735	schaersvoo	5727	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5728	ctx.lineWidth = line_width;\n\
		5729	ctx.beginPath();\n\
7739	schaersvoo	5730	ctx.moveTo(xmarge,y);\n\
7735	schaersvoo	5731	ctx.lineTo(xsize,y);\n\
		5732	ctx.stroke();\n\
		5733	ctx.closePath();\n\
		5734	if( use_axis_numbering == 1){\
		5735	ytxt = (px2y(y)).toFixed(prec);\
		5736	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		5737	};\
		5738	for(var dy = 1 ; dy < yminor ; dy++){\
		5739	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5740	ctx.lineWidth = 0.2*line_width;\n\
		5741	ctx.beginPath();\n\
7739	schaersvoo	5742	ctx.moveTo(xmarge,y+dy*minor_step);\
7735	schaersvoo	5743	ctx.lineTo(xsize,y+dy*minor_step);\n\
		5744	ctx.stroke();\n\
		5745	ctx.closePath();\n\
		5746	};\
		5747	};\
		5748	ctx.restore();\n\
		5749	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5750	break;
7729	schaersvoo	5751	case DRAW_YLOGSCALE:
		5752	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
7739	schaersvoo	5753	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){\n\
7729	schaersvoo	5754	var obj;\n\
		5755	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5756	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5757	}\n\
		5758	else\n\
		5759	{\n\
		5760	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5761	};\n\
		5762	var ctx = obj.getContext(\"2d\");\n\
		5763	ctx.clearRect(0,0,xsize,ysize);\
		5764	ctx.save();\n\
		5765	ctx.lineWidth = line_width;\n\
7735	schaersvoo	5766	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		5767	var y_max = Math.log(ymax)/Math.log(ylogbase);\
		5768	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;\
7739	schaersvoo	5769	if(use_axis_numbering == 1){\
		5770	ctx.font = font_family;\n\
		5771	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\n\
		5772	ymarge = 2*font_size;\n\
		5773	ctx.save();\n\
		5774	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5775	ctx.rect(0,0,xmarge,ysize);\n\
		5776	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5777	ctx.fill();\n\
		5778	ctx.restore();\n\
		5779	}else{xmarge = 0;ymarge = 0;};\n\
		5780	if( typeof xaxislabel !== 'undefined' ){\
		5781	ctx.save();\n\
		5782	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5783	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5784	corr = ctx.measureText(xaxislabel).width;\n\
		5785	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5786	ctx.restore();\n\
		5787	};\n\
		5788	if( typeof yaxislabel !== 'undefined' ){\
		5789	ctx.save();\n\
		5790	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5791	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5792	corr = ctx.measureText(yaxislabel).width;\n\
		5793	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5794	ctx.rotate(-0.5*Math.PI);\n\
		5795	ctx.fillText(yaxislabel,0,0);\n\
		5796	ctx.restore();\n\
		5797	};\n\
		5798	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5799	ctx.lineWidth = line_width;\n\n\
7729	schaersvoo	5800	for(var p = y_min; p <= y_max ; p++){\n\
7735	schaersvoo	5801	num = Math.pow(ylogbase,p);\n\
		5802	for(var i = 1 ; i < ylogbase ; i++){\n\
7729	schaersvoo	5803	y_e = y2px(i*num);\n\
		5804	if( i == 1 ){\
		5805	ctx.lineWidth = line_width;\n\
		5806	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5807	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	5808	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	5809	};\
		5810	}else{\
		5811	ctx.lineWidth = 0.2*line_width;\n\
		5812	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5813	};\
		5814	ctx.beginPath();\n\
7739	schaersvoo	5815	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5816	ctx.lineTo(xsize,y_e);\n\
7729	schaersvoo	5817	ctx.stroke();\n\
		5818	ctx.closePath();\n\
		5819	};\n\
		5820	};\n\
		5821	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		5822	var minor_step = stepx / xminor;\
		5823	var prec = Math.log(precision)/Math.log(10);\
		5824	var xtxt;var corr;var flip = 0;\
7739	schaersvoo	5825	for(var x = xmarge ; x < xsize ; x = x + stepx){\
7729	schaersvoo	5826	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5827	ctx.lineWidth = line_width;\n\
		5828	ctx.beginPath();\n\
7739	schaersvoo	5829	ctx.moveTo(x,ysize-ymarge);\n\
7729	schaersvoo	5830	ctx.lineTo(x,0);\n\
		5831	ctx.stroke();\n\
		5832	ctx.closePath();\n\
		5833	if( use_axis_numbering == 1){\
		5834	xtxt = (px2x(x)).toFixed(prec);\
		5835	corr = 0.5*(ctx.measureText(xtxt).width);\
		5836	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		5837	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		5838	};\
		5839	for(var dx = 1 ; dx < xminor ; dx++){\
		5840	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5841	ctx.lineWidth = 0.2*line_width;\n\
		5842	ctx.beginPath();\n\
7739	schaersvoo	5843	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7729	schaersvoo	5844	ctx.lineTo(x+dx*minor_step,0);\n\
		5845	ctx.stroke();\n\
		5846	ctx.closePath();\n\
7735	schaersvoo	5847	};\
		5848	};\
7729	schaersvoo	5849	ctx.restore();\n\
		5850	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5851
		5852	break;
7735	schaersvoo	5853
		5854
7614	schaersvoo	5855	default:break;
		5856	}
		5857	}
		5858	}
		5859	return;
		5860	}
		5861
		5862	void check_string_length(int L){
		5863	if(L<1 \|\| L > MAX_BUFFER-1){
		5864	canvas_error("problem with your arguments to command...");
		5865	}
		5866	return;
		5867	}
		5868
		5869
		5870	int get_token(FILE *infile){
		5871	int c,i=0;
		5872	char temp[MAX_INT], *input_type;
		5873	char *line="line",
		5874	*audio="audio",
		5875	*blink="blink",
		5876	*arrowhead="arrowhead",
		5877	*crosshairsize="crosshairsize",
		5878	*crosshair="crosshair",
		5879	*crosshairs="crosshairs",
		5880	*audioobject="audioobject",
		5881	*style="style",
		5882	*mouse="mouse",
		5883	*userdraw="userdraw",
		5884	*highlight="highlight",
		5885	*http="http",
		5886	*rays="rays",
		5887	*dashtype="dashtype",
		5888	*dashed="dashed",
		5889	*filled="filled",
		5890	*lattice="lattice",
		5891	*parallel="parallel",
		5892	*segment="segment",
		5893	*dsegment="dsegment",
		5894	*seg="seg",
		5895	*bgimage="bgimage",
		5896	*bgcolor="bgcolor",
		5897	*strokecolor="strokecolor",
		5898	*backgroundimage="backgroundimage",
		5899	*text="text",
		5900	*textup="textup",
		5901	*mouseprecision="mouseprecision",
		5902	*precision="precision",
		5903	*plotsteps="plotsteps",
		5904	*plotstep="plotstep",
		5905	*tsteps="tsteps",
		5906	*curve="curve",
		5907	*dcurve="dcurve",
		5908	*plot="plot",
		5909	*dplot="dplot",
		5910	*fontsize="fontsize",
		5911	*fontcolor="fontcolor",
		5912	*axis="axis",
		5913	*axisnumbering="axisnumbering",
		5914	*axisnumbers="axisnumbers",
		5915	*arrow="arrow",
		5916	*darrow="darrow",
		5917	*arrow2="arrow2",
		5918	*darrow2="darrow2",
		5919	*zoom="zoom",
		5920	*grid="grid",
		5921	*hline="hline",
		5922	*drag="drag",
		5923	*horizontalline="horizontalline",
		5924	*vline="vline",
		5925	*verticalline="verticalline",
		5926	*triangle="triangle",
		5927	*ftriangle="ftriangle",
		5928	*mathml="mathml",
		5929	*html="html",
		5930	*input="input",
		5931	*button="button",
		5932	*inputstyle="inputstyle",
		5933	*textarea="textarea",
		5934	*trange="trange",
		5935	*ranget="ranget",
		5936	*xrange="xrange",
		5937	*yrange="yrange",
		5938	*rangex="rangex",
		5939	*rangey="rangey",
		5940	*polyline="polyline",
		5941	*lines="lines",
		5942	*poly="poly",
		5943	*polygon="polygon",
		5944	*fpolygon="fpolygon",
		5945	*fpoly="fpoly",
		5946	*filledpoly="filledpoly",
		5947	*filledpolygon="filledpolygon",
		5948	*rect="rect",
		5949	*frect="frect",
		5950	*rectangle="rectangle",
		5951	*frectangle="frectangle",
		5952	*square="square",
		5953	*fsquare="fsquare",
		5954	*dline="dline",
		5955	*arc="arc",
		5956	*filledarc="filledarc",
		5957	*size="size",
		5958	*string="string",
		5959	*stringup="stringup",
		5960	*copy="copy",
		5961	*copyresized="copyresized",
		5962	*opacity="opacity",
		5963	*transparent="transparent",
		5964	*fill="fill",
		5965	*slider="slider",
		5966	*point="point",
		5967	*points="points",
		5968	*linewidth="linewidth",
		5969	*circle="circle",
		5970	*fcircle="fcircle",
		5971	*disk="disk",
		5972	*comment="#",
		5973	*end="end",
		5974	*ellipse="ellipse",
		5975	*fellipse="fellipse",
		5976	*rotate="rotate",
		5977	*fontfamily="fontfamily",
		5978	*fillcolor="fillcolor",
		5979	*clicktile="clicktile",
		5980	*clicktile_colors="clicktile_colors",
		5981	*translation="translation",
		5982	*translate="translate",
		5983	*killtranslation="killtranslation",
		5984	*killtranslate="killtranslate",
		5985	*onclick="onclick",
		5986	*roundrect="roundrect",
		5987	*froundrect="froundrect",
		5988	*roundrectangle="roundrectangle",
		5989	*patternfill="patternfill",
		5990	*hatchfill="hatchfill",
		5991	*diafill="diafill",
7647	schaersvoo	5992	*diamondfill="diamondfill",
7614	schaersvoo	5993	*dotfill="dotfill",
		5994	*gridfill="gridfill",
		5995	*imagefill="imagefill",
7735	schaersvoo	5996	*xlogbase="xlogbase",
		5997	*ylogbase="ylogbase",
7614	schaersvoo	5998	*xlogscale="xlogscale",
		5999	*ylogscale="ylogscale",
		6000	*xylogscale="xylogscale",
		6001	*intooltip="intooltip",
		6002	*replyformat="replyformat",
		6003	*floodfill="floodfill",
		6004	*filltoborder="filltoborder",
		6005	*clickfill="clickfill",
		6006	*debug="debug",
		6007	*setpixel="setpixel",
		6008	*pixels="pixels",
		6009	*pixelsize="pixelsize",
		6010	*clickfillmarge="clickfillmarge",
		6011	*xaxis="xaxis",
		6012	*yaxis="yaxis",
		6013	*xaxistext="xaxistext",
		6014	*yaxistext="yaxistext",
		6015	*piechart="piechart",
		6016	*legend="legend",
		6017	*legendcolors="legendcolors",
		6018	*xlabel="xlabel",
		6019	*ylabel="ylabel",
		6020	*barchart="barchart",
		6021	*linegraph="linegraph",
		6022	*clock="clock",
		6023	*animate="animate",
		6024	*video="video",
		6025	*status="status",
7652	schaersvoo	6026	*snaptogrid="snaptogrid",
7654	schaersvoo	6027	*userinput_xy="userinput_xy",
7663	schaersvoo	6028	*usertextarea_xy="usertextarea_xy",
7654	schaersvoo	6029	*sgraph="sgraph";
7614	schaersvoo	6030
		6031	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
		6032	if( i == 0 && (c == ' ' \|\| c == '\t') ){
		6033	continue; /* white spaces or tabs allowed before first command identifier */
		6034	}
		6035	else
		6036	{
		6037	if( c == ' ' \|\| c == '\t' ){
		6038	break;
		6039	}
		6040	else
		6041	{
		6042	temp[i] = c;
		6043	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		6044	i++;
		6045	}
		6046	}
		6047	if(temp[0] == '#') break;
		6048	}
		6049	if (c == EOF) finished = 1;
		6050
		6051	if (c == '\n' \|\| c == '\r') {
		6052	line_number++;
		6053	if (i == 0) { return EMPTY; }
		6054	} else if (c == EOF) {
		6055	return 0;
		6056	}
		6057
		6058	temp[i]='\0';
		6059	input_type=(char*)my_newmem(strlen(temp));
		6060	snprintf(input_type,sizeof(temp),"%s",temp);
		6061
		6062	if( strcmp(input_type, size) == 0 ){
		6063	free(input_type);
		6064	return SIZE;
		6065	}
		6066	if( strcmp(input_type, xrange) == 0 ){
		6067	free(input_type);
		6068	return XRANGE;
		6069	}
		6070	if( strcmp(input_type, rangex) == 0 ){
		6071	free(input_type);
		6072	return XRANGE;
		6073	}
		6074	if( strcmp(input_type, trange) == 0 ){
		6075	free(input_type);
		6076	return TRANGE;
		6077	}
		6078	if( strcmp(input_type, ranget) == 0 ){
		6079	free(input_type);
		6080	return TRANGE;
		6081	}
		6082	if( strcmp(input_type, yrange) == 0 ){
		6083	free(input_type);
		6084	return YRANGE;
		6085	}
		6086	if( strcmp(input_type, rangey) == 0 ){
		6087	free(input_type);
		6088	return YRANGE;
		6089	}
		6090	if( strcmp(input_type, linewidth) == 0 ){
		6091	free(input_type);
		6092	return LINEWIDTH;
		6093	}
		6094	if( strcmp(input_type, dashed) == 0 ){
		6095	free(input_type);
		6096	return DASHED;
		6097	}
		6098	if( strcmp(input_type, dashtype) == 0 ){
		6099	free(input_type);
		6100	return DASHTYPE;
		6101	}
		6102	if( strcmp(input_type, axisnumbering) == 0 ){
		6103	free(input_type);
		6104	return AXIS_NUMBERING;
		6105	}
		6106	if( strcmp(input_type, axisnumbers) == 0 ){
		6107	free(input_type);
		6108	return AXIS_NUMBERING;
		6109	}
		6110	if( strcmp(input_type, axis) == 0 ){
		6111	free(input_type);
		6112	return AXIS;
		6113	}
		6114	if( strcmp(input_type, grid) == 0 ){
		6115	free(input_type);
		6116	return GRID;
		6117	}
		6118	if( strcmp(input_type, parallel) == 0 ){
		6119	free(input_type);
		6120	return PARALLEL;
		6121	}
		6122	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
		6123	free(input_type);
		6124	return HLINE;
		6125	}
		6126	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		6127	free(input_type);
		6128	return VLINE;
		6129	}
		6130	if( strcmp(input_type, line) == 0 ){
		6131	free(input_type);
		6132	return LINE;
		6133	}
		6134	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		6135	free(input_type);
		6136	return SEGMENT;
		6137	}
		6138	if( strcmp(input_type, dsegment) == 0 ){
		6139	free(input_type);
		6140	use_dashed = TRUE;
		6141	return SEGMENT;
		6142	}
		6143	if( strcmp(input_type, crosshairsize) == 0 ){
		6144	free(input_type);
		6145	return CROSSHAIRSIZE;
		6146	}
		6147	if( strcmp(input_type, arrowhead) == 0 ){
		6148	free(input_type);
		6149	return ARROWHEAD;
		6150	}
		6151	if( strcmp(input_type, crosshairs) == 0 ){
		6152	free(input_type);
		6153	return CROSSHAIRS;
		6154	}
		6155	if( strcmp(input_type, crosshair) == 0 ){
		6156	free(input_type);
		6157	return CROSSHAIR;
		6158	}
		6159	if( strcmp(input_type, onclick) == 0 ){
		6160	free(input_type);
		6161	return ONCLICK;
		6162	}
		6163	if( strcmp(input_type, drag) == 0 ){
		6164	free(input_type);
		6165	return DRAG;
		6166	}
		6167	if( strcmp(input_type, userdraw) == 0 ){
		6168	free(input_type);
		6169	return USERDRAW;
		6170	}
		6171	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		6172	free(input_type);
		6173	return STYLE;
		6174	}
		6175	if( strcmp(input_type, fillcolor) == 0 ){
		6176	free(input_type);
		6177	return FILLCOLOR;
		6178	}
		6179	if( strcmp(input_type, strokecolor) == 0 ){
		6180	free(input_type);
		6181	return STROKECOLOR;
		6182	}
		6183	if( strcmp(input_type, filled) == 0 ){
		6184	free(input_type);
		6185	return FILLED;
		6186	}
		6187	if( strcmp(input_type, http) == 0 ){
		6188	free(input_type);
		6189	return HTTP;
		6190	}
		6191	if( strcmp(input_type, rays) == 0 ){
		6192	free(input_type);
		6193	return RAYS;
		6194	}
		6195	if( strcmp(input_type, lattice) == 0 ){
		6196	free(input_type);
		6197	return LATTICE;
		6198	}
		6199	if( strcmp(input_type, bgimage) == 0 ){
		6200	free(input_type);
		6201	return BGIMAGE;
		6202	}
		6203	if( strcmp(input_type, bgcolor) == 0 ){
		6204	free(input_type);
		6205	return BGCOLOR;
		6206	}
		6207	if( strcmp(input_type, backgroundimage) == 0 ){
		6208	free(input_type);
		6209	return BGIMAGE;
		6210	}
		6211	if( strcmp(input_type, text) == 0 ){
		6212	free(input_type);
		6213	return FLY_TEXT;
		6214	}
		6215	if( strcmp(input_type, textup) == 0 ){
		6216	free(input_type);
		6217	return FLY_TEXTUP;
		6218	}
		6219	if( strcmp(input_type, mouse) == 0 ){
		6220	free(input_type);
		6221	return MOUSE;
		6222	}
		6223	if( strcmp(input_type, mouseprecision) == 0 ){
		6224	free(input_type);
		6225	return MOUSE_PRECISION;
		6226	}
		6227	if( strcmp(input_type, precision) == 0 ){
		6228	free(input_type);
		6229	return MOUSE_PRECISION;
		6230	}
		6231	if( strcmp(input_type, curve) == 0 ){
		6232	free(input_type);
		6233	return CURVE;
		6234	}
		6235	if( strcmp(input_type, dcurve) == 0 ){
		6236	free(input_type);
		6237	return CURVE;
		6238	}
		6239	if( strcmp(input_type, plot) == 0 ){
		6240	free(input_type);
		6241	return CURVE;
		6242	}
		6243	if( strcmp(input_type, dplot) == 0 ){
		6244	free(input_type);
		6245	return CURVE;
		6246	}
		6247	if( strcmp(input_type, plotsteps) == 0 ){
		6248	free(input_type);
		6249	return PLOTSTEPS;
		6250	}
		6251	if( strcmp(input_type, plotstep) == 0 ){
		6252	free(input_type);
		6253	return PLOTSTEPS;
		6254	}
		6255	if( strcmp(input_type, tsteps) == 0 ){
		6256	free(input_type);
		6257	return PLOTSTEPS;
		6258	}
		6259	if( strcmp(input_type, fontsize) == 0 ){
		6260	free(input_type);
		6261	return FONTSIZE;
		6262	}
		6263	if( strcmp(input_type, fontcolor) == 0 ){
		6264	free(input_type);
		6265	return FONTCOLOR;
		6266	}
		6267	if( strcmp(input_type, arrow) == 0 ){
		6268	free(input_type);
		6269	return ARROW;
		6270	}
		6271	if( strcmp(input_type, arrow2) == 0 ){
		6272	free(input_type);
		6273	return ARROW2;
		6274	}
		6275	if( strcmp(input_type, darrow) == 0 ){
		6276	free(input_type);
		6277	return ARROW;
		6278	}
		6279	if( strcmp(input_type, darrow2) == 0 ){
		6280	free(input_type);
		6281	use_dashed = TRUE;
		6282	return ARROW2;
		6283	}
		6284	if( strcmp(input_type, zoom) == 0 ){
		6285	free(input_type);
		6286	return ZOOM;
		6287	}
		6288	if( strcmp(input_type, triangle) == 0 ){
		6289	free(input_type);
		6290	return TRIANGLE;
		6291	}
		6292	if( strcmp(input_type, ftriangle) == 0 ){
		6293	free(input_type);
		6294	use_filled = TRUE;
		6295	return TRIANGLE;
		6296	}
		6297	if( strcmp(input_type, input) == 0 ){
		6298	free(input_type);
		6299	return INPUT;
		6300	}
		6301	if( strcmp(input_type, inputstyle) == 0 ){
		6302	free(input_type);
		6303	return INPUTSTYLE;
		6304	}
		6305	if( strcmp(input_type, textarea) == 0 ){
		6306	free(input_type);
		6307	return TEXTAREA;
		6308	}
		6309	if( strcmp(input_type, mathml) == 0 ){
		6310	free(input_type);
		6311	return MATHML;
		6312	}
		6313	if( strcmp(input_type, html) == 0 ){
		6314	free(input_type);
		6315	return MATHML;
		6316	}
		6317	if( strcmp(input_type, fontfamily) == 0 ){
		6318	free(input_type);
		6319	return FONTFAMILY;
		6320	}
		6321	if( strcmp(input_type, lines) == 0 \|\| strcmp(input_type, polyline) == 0 ){
		6322	free(input_type);
		6323	return POLYLINE;
		6324	}
		6325	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		6326	free(input_type);
		6327	return RECT;
		6328	}
		6329	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		6330	free(input_type);
		6331	return ROUNDRECT;
		6332	}
		6333	if( strcmp(input_type, froundrect) == 0 ){
		6334	free(input_type);
		6335	use_filled = TRUE;
		6336	return ROUNDRECT;
		6337	}
		6338	if( strcmp(input_type, square) == 0 ){
		6339	free(input_type);
		6340	return SQUARE;
		6341	}
		6342	if( strcmp(input_type, fsquare) == 0 ){
		6343	free(input_type);
		6344	use_filled = TRUE;
		6345	return SQUARE;
		6346	}
		6347	if( strcmp(input_type, dline) == 0 ){
		6348	use_dashed = TRUE;
		6349	free(input_type);
		6350	return LINE;
		6351	}
		6352	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		6353	use_filled = TRUE;
		6354	free(input_type);
		6355	return RECT;
		6356	}
		6357	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		6358	use_filled = TRUE;
		6359	free(input_type);
		6360	return CIRCLE;
		6361	}
		6362	if( strcmp(input_type, circle) == 0 ){
		6363	free(input_type);
		6364	return CIRCLE;
		6365	}
		6366	if( strcmp(input_type, point) == 0 ){
		6367	free(input_type);
		6368	return POINT;
		6369	}
		6370	if( strcmp(input_type, points) == 0 ){
		6371	free(input_type);
		6372	return POINTS;
		6373	}
		6374	if( strcmp(input_type, filledarc) == 0 ){
		6375	use_filled = TRUE;
		6376	free(input_type);
		6377	return ARC;
		6378	}
		6379	if( strcmp(input_type, arc) == 0 ){
		6380	free(input_type);
		6381	return ARC;
		6382	}
		6383	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		6384	free(input_type);
		6385	return POLY;
		6386	}
		6387	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		6388	use_filled = TRUE;
		6389	free(input_type);
		6390	return POLY;
		6391	}
		6392	if( strcmp(input_type, ellipse) == 0){
		6393	free(input_type);
		6394	return ELLIPSE;
		6395	}
		6396	if( strcmp(input_type, fill) == 0 ){
		6397	free(input_type);
		6398	return FLOODFILL;
		6399	}
		6400	if( strcmp(input_type, string) == 0 ){
		6401	free(input_type);
		6402	return STRING;
		6403	}
		6404	if( strcmp(input_type, stringup) == 0 ){
		6405	free(input_type);
		6406	return STRINGUP;
		6407	}
		6408	if( strcmp(input_type, opacity) == 0 ){
		6409	free(input_type);
		6410	return OPACITY;
		6411	}
		6412	if( strcmp(input_type, comment) == 0){
		6413	free(input_type);
		6414	return COMMENT;
		6415	}
		6416	if( strcmp(input_type, end) == 0){
		6417	free(input_type);
		6418	return END;
		6419	}
		6420	if( strcmp(input_type, fellipse) == 0){
		6421	free(input_type);
		6422	use_filled = TRUE;
		6423	return ELLIPSE;
		6424	}
		6425	if( strcmp(input_type, blink) == 0 ){
		6426	free(input_type);
		6427	return BLINK;
		6428	}
		6429	if( strcmp(input_type, button) == 0){
		6430	free(input_type);
		6431	return BUTTON;
		6432	}
		6433	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		6434	free(input_type);
		6435	return TRANSLATION;
		6436	}
		6437	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		6438	free(input_type);
		6439	return KILLTRANSLATION;
		6440	}
		6441	if( strcmp(input_type, rotate) == 0){
		6442	free(input_type);
		6443	return ROTATE;
		6444	}
		6445	if( strcmp(input_type, audio) == 0 ){
		6446	free(input_type);
		6447	return AUDIO;
		6448	}
		6449	if( strcmp(input_type, audioobject) == 0 ){
		6450	free(input_type);
		6451	return AUDIOOBJECT;
		6452	}
		6453	if( strcmp(input_type, slider) == 0 ){
		6454	free(input_type);
		6455	return SLIDER;
		6456	}
		6457	if( strcmp(input_type, copy) == 0 ){
		6458	free(input_type);
		6459	return COPY;
		6460	}
		6461	if( strcmp(input_type, copyresized) == 0 ){
		6462	free(input_type);
		6463	return COPYRESIZED;
		6464	}
		6465	if( strcmp(input_type, patternfill) == 0 ){
		6466	free(input_type);
		6467	return PATTERNFILL;
		6468	}
		6469	if( strcmp(input_type, hatchfill) == 0 ){
		6470	free(input_type);
		6471	return HATCHFILL;
		6472	}
7647	schaersvoo	6473	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
7614	schaersvoo	6474	free(input_type);
7647	schaersvoo	6475	return DIAMONDFILL;
7614	schaersvoo	6476	}
		6477	if( strcmp(input_type, dotfill) == 0 ){
		6478	free(input_type);
		6479	return DOTFILL;
		6480	}
		6481	if( strcmp(input_type, gridfill) == 0 ){
		6482	free(input_type);
		6483	return GRIDFILL;
		6484	}
		6485	if( strcmp(input_type, imagefill) == 0 ){
		6486	free(input_type);
		6487	return IMAGEFILL;
		6488	}
		6489	if( strcmp(input_type, clicktile_colors) == 0 ){
		6490	free(input_type);
		6491	return CLICKTILE_COLORS;
		6492	}
		6493	if( strcmp(input_type, clicktile) == 0 ){
		6494	free(input_type);
		6495	return CLICKTILE;
		6496	}
		6497	if( strcmp(input_type, xlogscale) == 0 ){
		6498	free(input_type);
		6499	return XLOGSCALE;
		6500	}
		6501	if( strcmp(input_type, ylogscale) == 0 ){
		6502	free(input_type);
		6503	return YLOGSCALE;
		6504	}
		6505	if( strcmp(input_type, xylogscale) == 0 ){
		6506	free(input_type);
		6507	return XYLOGSCALE;
		6508	}
		6509	if( strcmp(input_type, ylogscale) == 0 ){
		6510	free(input_type);
		6511	return YLOGSCALE;
		6512	}
7735	schaersvoo	6513	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	6514	free(input_type);
7735	schaersvoo	6515	return XLOGBASE;
7614	schaersvoo	6516	}
7735	schaersvoo	6517	if( strcmp(input_type, ylogbase) == 0 ){
		6518	free(input_type);
		6519	return YLOGBASE;
		6520	}
7614	schaersvoo	6521	if( strcmp(input_type, intooltip) == 0 ){
		6522	free(input_type);
		6523	return INTOOLTIP;
		6524	}
		6525	if( strcmp(input_type,video) == 0 ){
		6526	free(input_type);
		6527	return VIDEO;
		6528	}
		6529	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		6530	free(input_type);
		6531	return FLOODFILL;
		6532	}
		6533	if( strcmp(input_type,filltoborder) == 0 ){
		6534	free(input_type);
		6535	return FILLTOBORDER;
		6536	}
		6537	if( strcmp(input_type,clickfill) == 0 ){
		6538	free(input_type);
		6539	return CLICKFILL;
		6540	}
		6541	if( strcmp(input_type, replyformat) == 0 ){
		6542	free(input_type);
		6543	return REPLYFORMAT;
		6544	}
		6545	if( strcmp(input_type, debug) == 0 ){
		6546	free(input_type);
		6547	return DEBUG;
		6548	}
		6549	if( strcmp(input_type, pixelsize) == 0 ){
		6550	free(input_type);
		6551	return PIXELSIZE;
		6552	}
		6553	if( strcmp(input_type, setpixel) == 0 ){
		6554	free(input_type);
		6555	return SETPIXEL;
		6556	}
		6557	if( strcmp(input_type, pixels) == 0 ){
		6558	free(input_type);
		6559	return PIXELS;
		6560	}
		6561	if( strcmp(input_type, clickfillmarge) == 0 ){
		6562	free(input_type);
		6563	return CLICKFILLMARGE;
		6564	}
		6565	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		6566	free(input_type);
		6567	return X_AXIS_STRINGS;
		6568	}
		6569	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		6570	free(input_type);
		6571	return Y_AXIS_STRINGS;
		6572	}
		6573	if( strcmp(input_type, piechart) == 0 ){
		6574	free(input_type);
		6575	return PIECHART;
		6576	}
		6577	if( strcmp(input_type, barchart) == 0 ){
		6578	free(input_type);
		6579	return BARCHART;
		6580	}
		6581	if( strcmp(input_type, linegraph) == 0 ){
		6582	free(input_type);
		6583	return LINEGRAPH;
		6584	}
		6585	if( strcmp(input_type, clock) == 0 ){
		6586	free(input_type);
		6587	return CLOCK;
		6588	}
		6589	if( strcmp(input_type, legend) == 0 ){
		6590	free(input_type);
		6591	return LEGEND;
		6592	}
		6593	if( strcmp(input_type, legendcolors) == 0 ){
		6594	free(input_type);
		6595	return LEGENDCOLORS;
		6596	}
		6597	if( strcmp(input_type, xlabel) == 0 ){
		6598	free(input_type);
		6599	return XLABEL;
		6600	}
		6601	if( strcmp(input_type, ylabel) == 0 ){
		6602	free(input_type);
		6603	return YLABEL;
		6604	}
		6605	if( strcmp(input_type, animate) == 0 ){
		6606	free(input_type);
		6607	return ANIMATE;
		6608	}
		6609	/* these are bitmap related flydraw commmands...must be removed. eventually */
		6610	if( strcmp(input_type, transparent) == 0 ){
		6611	free(input_type);
		6612	return TRANSPARENT;
		6613	}
		6614	if( strcmp(input_type, status) == 0 ){
		6615	free(input_type);
		6616	return STATUS;
		6617	}
		6618	if( strcmp(input_type, snaptogrid) == 0 ){
		6619	free(input_type);
		6620	return SNAPTOGRID;
		6621	}
7652	schaersvoo	6622	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	6623	free(input_type);
7652	schaersvoo	6624	return USERINPUT_XY;
		6625	}
7663	schaersvoo	6626	if( strcmp(input_type, usertextarea_xy) == 0 ){
		6627	free(input_type);
		6628	return USERTEXTAREA_XY;
		6629	}
7654	schaersvoo	6630	if( strcmp(input_type, sgraph) == 0 ){
7652	schaersvoo	6631	free(input_type);
7654	schaersvoo	6632	return SGRAPH;
		6633	}
		6634	free(input_type);
7614	schaersvoo	6635	ungetc(c,infile);
		6636	return 0;
		6637	}
		6638
7729	schaersvoo	6639

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 7747