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...)
7749	schaersvoo	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><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><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (in stead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.<br />example:<br />size 200,200;xrange -5,5;yrange -5,5;hline 0,0,black;vline 0,0,black<br />plot red,sin(x)<br />drag xy<br />html 0,0,5,-5, &euro; <br />lines green,2,0,2,-2,-2,2,-2,0;rectangle 1,1,4,4,purple;frectangle -1,-1,-4,-4,yellow</li></ul>
7614	schaersvoo	186	*/
		187	switch(type){
		188	case END:
		189	finished = 1;
		190	done = TRUE;
		191	break;
		192	case 0:
		193	sync_input(infile);
		194	break;
		195	case COMMENT:
		196	sync_input(infile);
		197	break;
		198	case EMPTY:
		199	sync_input(infile);
		200	break;
		201	case SIZE:
		202	/*
		203	@size width,height
		204	@set canvas size in pixels
		205	@mandatory first command
7647	schaersvoo	206	@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	207	*/
		208	found_size_command = TRUE;
		209	xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		210	ysize = (int)(abs(round(get_real(infile,1))));
		211	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		212	xmin = 0;xmax = xsize;
7647	schaersvoo	213	ymin = 0;ymax = ysize;
7614	schaersvoo	214
		215	/*
		216	The sequence in which stuff is finally printed is important !!
		217	for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
		218	*/
		219	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);
		220	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n");
		221	fprintf(stdout,"<!-- include actual object code via include file -->\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
7729	schaersvoo	222	fprintf(js_include_file,"var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
		223	var xsize = %d;\
		224	var ysize = %d;\
		225	var canvas_div = document.getElementById(\"canvas_div%d\");\
		226	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;};\
		227	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	228	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);};};\
		229	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);};};\
		230	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);};};\
		231	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	232	function scale_x_radius(rx){return parseInt(x2px(rx) - x2px(0));};\
		233	function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};\
		234	function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) ));};\
		235	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) ));};\
		236	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	237	var xlogbase = 10;\
		238	var ylogbase = 10;\
7729	schaersvoo	239	var use_xlogscale = 0;\
		240	var use_ylogscale = 0;\
		241	var x_strings = null;\
		242	var y_strings = null;\
		243	var use_pan_and_zoom = 0;\
		244	var use_snap_to_grid = 0;\
		245	var xstart = 0;\
		246	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	247	/* default add the drag code : nearly always used ...*/
		248	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		249	break;
		250	case XRANGE:
		251	/*
		252	@ xrange xmin,xmax
		253	@ if not given: 0,xsize (eg in pixels)
		254	*/
		255	for(i = 0 ; i<2; i++){
		256	switch(i){
		257	case 0: xmin = get_real(infile,0);break;
		258	case 1: xmax = get_real(infile,1);break;
		259	default: break;
		260	}
		261	}
		262	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		263	fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
		264	break;
		265	case YRANGE:
		266	/*
		267	@ yrange ymin,ymax
		268	@ if not given 0,ysize (eg in pixels)
		269	*/
		270	for(i = 0 ; i<2; i++){
		271	switch(i){
		272	case 0: ymin = get_real(infile,0);break;
		273	case 1: ymax = get_real(infile,1);break;
		274	default: break;
		275	}
		276	}
		277	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		278	fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
		279	break;
		280	case TRANGE:
		281	/*
		282	@ trange tmin,tmax
		283	@ default -2,2
		284	*/
		285	use_parametric = TRUE;
		286	for(i = 0 ; i<2; i++){
		287	switch(i){
		288	case 0: tmin = get_real(infile,0);break;
		289	case 1: tmax = get_real(infile,1);break;
		290	default: break;
		291	}
		292	}
		293	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
		294	break;
		295	case LINEWIDTH:
		296	/*
		297	@ linewidth int
		298	@ default 1
		299	*/
		300	line_width = (int) (get_real(infile,1));
		301	break;
		302	case ARROWHEAD:
		303	/*
		304	@ arrowhead int
		305	@ default 8 (pixels)
		306	*/
		307	arrow_head = (int) (get_real(infile,1));
		308	break;
		309	case CROSSHAIRSIZE:
		310	/*
		311	@ crosshairsize int
		312	@ default 10 (px)
		313	*/
		314	crosshair_size = (int) (get_real(infile,1));
		315	break;
		316	case CROSSHAIR:
		317	/*
		318	@ crosshair x,y,color
		319	@ draw a single crosshair point at (x;y) in color 'color'
		320	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		321	@ may be set draggable / onclick
		322	*/
		323	for(i=0;i<3;i++){
		324	switch(i){
		325	case 0: double_data[0] = get_real(infile,0);break; /* x */
		326	case 1: double_data[1] = get_real(infile,0);break; /* y */
		327	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		328	decimals = find_number_of_digits(precision);
		329	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		330	click_cnt++;reset();
		331	break;
		332	default:break;
		333	}
		334	}
		335	break;
		336	case CROSSHAIRS:
		337	/*
		338	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		339	@ draw multiple crosshair points at given coordinates in color 'color'
		340	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		341	@ may be set draggable / onclick individually (!)
		342	*/
		343	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		344	fill_color = stroke_color;
		345	i=0;
		346	while( ! done ){ /* get next item until EOL*/
		347	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		348	if(i%2 == 0 ){
		349	double_data[i] = get_real(infile,0); /* x */
		350	}
		351	else
		352	{
		353	double_data[i] = get_real(infile,1); /* y */
		354	}
		355	i++;
		356	}
		357	decimals = find_number_of_digits(precision);
		358	for(c=0 ; c < i-1 ; c = c+2){
		359	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		360	click_cnt++;
		361	}
		362	reset();
		363	break;
		364	case POINT:
		365	/*
		366	@ point x,y,color
		367	@ draw a single point at (x;y) in color 'color'
		368	@ use command 'linewidth int' to adust size
		369	@ may be set draggable / onclick
		370	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
		371	*/
		372	for(i=0;i<3;i++){
		373	switch(i){
		374	case 0: double_data[0] = get_real(infile,0);break; /* x */
		375	case 1: double_data[1] = get_real(infile,0);break; /* y */
		376	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		377	decimals = find_number_of_digits(precision);
		378	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		379	click_cnt++;break;
		380	default: break;
		381	}
		382	}
		383	reset();
		384	break;
		385	case POINTS:
		386	/*
7634	schaersvoo	387	@ points color,x1,y1,x2,y2,...,x_n,y_n
7614	schaersvoo	388	@ draw multiple points at given coordinates in color 'color'
		389	@ use command 'linewidth int' to adust size
		390	@ may be set draggable / onclick individually (!)
		391	*/
		392	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		393	fill_color = stroke_color;
		394	i=0;
		395	while( ! done ){ /* get next item until EOL*/
		396	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		397	if(i%2 == 0 ){
		398	double_data[i] = get_real(infile,0); /* x */
		399	}
		400	else
		401	{
		402	double_data[i] = get_real(infile,1); /* y */
		403	}
		404	i++;
		405	}
		406	decimals = find_number_of_digits(precision);
		407	for(c = 0 ; c < i-1 ; c = c+2){
		408	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		409	click_cnt++;
		410	}
		411	reset();
		412	break;
		413	case SEGMENT:
		414	/*
		415	@ segment x1,y1,x2,y2,color
		416	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		417	@ may be set draggable / onclick
		418	*/
		419	for(i=0;i<5;i++) {
		420	switch(i){
		421	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		422	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		423	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		424	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		425	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		426	decimals = find_number_of_digits(precision);
		427	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		428	click_cnt++;reset();
		429	break;
		430	default: break;
		431	}
		432	}
		433	break;
		434	case LINE:
		435	/*
		436	@ line x1,y1,x2,y2,color
		437	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		438	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		439	@ may be set draggable / onclick
		440	*/
		441	for(i=0;i<5;i++){
		442	switch(i){
		443	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		444	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		445	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		446	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		447	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		448	if( double_data[10] == double_data[12] ){ /* vertical line*/
		449	double_data[1] = xmin;
		450	double_data[3] = ymax;
		451	double_data[0] = double_data[10];
		452	double_data[2] = double_data[10];
		453	}
		454	else
		455	{
		456	if( double_data[11] == double_data[13] ){ /* horizontal line */
		457	double_data[1] = double_data[11];
		458	double_data[3] = double_data[11];
		459	double_data[0] = ymin;
		460	double_data[2] = xmax;
		461	}
		462	else
		463	{
		464	/* m */
		465	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		466	/* q */
		467	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
		468
		469	/xmin,mxmin+q,xmax,mxmax+q/
		470
		471	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		472	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		473	double_data[0] = xmin;
		474	double_data[2] = xmax;
		475	}
		476	}
		477	decimals = find_number_of_digits(precision);
		478	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		479	click_cnt++;reset();
		480	break;
		481	}
		482	}
		483	break;
		484	case HLINE:
		485	/*
		486	@ hline x,y,color
		487	@ draw a horizontal line through point (x:y) in color 'color'
		488	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		489	@ may be set draggable / onclick
		490	*/
		491	for(i=0;i<3;i++) {
		492	switch(i){
		493	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		494	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		495	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		496	double_data[3] = double_data[1];
		497	decimals = find_number_of_digits(precision);
		498	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		499	click_cnt++;reset();
		500	break;
		501	}
		502	}
		503	break;
		504	case VLINE:
		505	/*
		506	@ vline x,y,color
		507	@ draw a vertical line through point (x:y) in color 'color'
		508	@ may be set draggable / onclick
		509	*/
		510	for(i=0;i<3;i++) {
		511	switch(i){
		512	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		513	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		514	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		515	double_data[2] = double_data[0];
		516	decimals = find_number_of_digits(precision);
		517	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\"));\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);
		518	click_cnt++;reset();
		519	break;
		520	}
		521	}
		522	break;
		523	case SQUARE:
		524	/*
		525	@ square x,y,side,color
		526	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		527	@ use command 'fsquare x,y,side,color' for a filled square
		528	@ use command/keyword 'filled' before command 'square x,y,side,color'
		529	@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
		530	@ may be set draggable / onclick
		531	*/
		532	for(i=0;i<5;i++){
		533	switch(i){
		534	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		535	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		536	case 2:double_data[2] = get_real(infile,0);
		537	double_data[3] = double_data[2];
		538	break; /* x-values */
		539	case 3:stroke_color = get_color(infile,1);/* name or hex color */
		540	decimals = find_number_of_digits(precision);
		541	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);
		542	click_cnt++;reset();
		543	break;
		544	}
		545	}
		546	break;
		547	case ROUNDRECT:
		548	/*
		549	@ roundrect x1,y1,x2,y2,radius,color
		550	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
		551	@ use command/keyword 'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
		552	@ use command 'fillcolor color' before 'froundrect' to set the fill colour.
		553	@ may be set draggable / onclick
		554	*/
		555	for(i=0;i<6;i++){
		556	switch(i){
		557	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		558	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		559	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		560	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		561	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		562	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		563	decimals = find_number_of_digits(precision);
		564	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);
		565	click_cnt++;reset();
		566	break;
		567	}
		568	}
		569	break;
		570	case RECT:
		571	/*
		572	@ rect x1,y1,x2,y2,color
		573	@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
		574	@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
		575	@ use command 'fillcolor color' before 'frect' to set the fill colour.
		576	@ may be set draggable / onclick
		577	*/
		578	for(i=0;i<5;i++){
		579	switch(i){
		580	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		581	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		582	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		583	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		584	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		585	decimals = find_number_of_digits(precision);
		586	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);
		587	click_cnt++;reset();
		588	break;
		589	}
		590	}
		591	break;
		592	case POLYLINE:
		593	/*
		594	@ polyline color,x1,y1,x2,y2...x_n,y_n
		595	@ may be set draggable / onclick
		596	*/
		597	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		598	i=0;
		599	c=0;
		600	while( ! done ){ /* get next item until EOL*/
		601	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		602	for( c = 0 ; c < 2; c++){
		603	if(c == 0 ){
		604	double_data[i] = get_real(infile,0);
		605	i++;
		606	}
		607	else
		608	{
		609	double_data[i] = get_real(infile,1);
		610	i++;
		611	}
		612	}
		613	}
		614	/* draw path : not closed & not filled */
		615	decimals = find_number_of_digits(precision);
		616	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);
		617	click_cnt++;reset();
		618	break;
		619	case POLY:
		620	/*
		621	@ poly color,x1,y1,x2,y2...x_n,y_n
		622	@ draw closed polygon
		623	@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
		624	@ may be set draggable / onclick
		625	*/
		626	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		627	i=0;
		628	c=0;
		629	while( ! done ){ /* get next item until EOL*/
		630	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		631	for( c = 0 ; c < 2; c++){
		632	if(c == 0 ){
		633	double_data[i] = get_real(infile,0);
		634	i++;
		635	}
		636	else
		637	{
		638	double_data[i] = get_real(infile,1);
		639	i++;
		640	}
		641	}
		642	}
		643	/* draw path : closed & optional filled */
		644	decimals = find_number_of_digits(precision);
		645	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);
		646	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);
		647	click_cnt++;reset();
		648	break;
		649	case ARC:
		650	/*
		651	@ arc xc,yc,width,height,start_angle,end_angle,color
		652	@ can not be set "onclick" or "drag xy"
		653	@ attention: width == height == radius in pixels)
		654	*/
		655	for(i=0;i<7;i++){
		656	switch(i){
		657	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		658	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		659	case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
		660	case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
		661	case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
		662	case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
		663	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		664	/* in Shape library:
		665	x[0] = x[1] = xc
		666	y[0] = y[1] = yc
		667	w[0] = w[1] = radius = width = height
		668	h[0] = start_angle ; h[1] = end_engle
		669	*/
		670	decimals = find_number_of_digits(precision);
		671	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);
		672	reset();
		673	break;
		674	}
		675	}
		676	break;
		677	case ELLIPSE:
		678	/*
		679	@ ellipse xc,yc,radius_x,radius_y,color
		680	@ a ellipse with center xc/yc in x/y-range
		681	@ radius_x and radius_y are in pixels
		682	@ may be set draggable / onclick
		683	@ will shrink / expand on zoom out / zoom in
		684	*/
		685	for(i=0;i<5;i++){
		686	switch(i){
		687	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		688	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		689	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
		690	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
		691	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		692	decimals = find_number_of_digits(precision);
		693	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);
		694	click_cnt++;reset();
		695	break;
		696	}
		697	}
		698	break;
		699	case DASHTYPE:
		700	/*
		701	@ dashtype int ,int
		702	@ When dashed is set, the objects will be drawn with this dashtyp
		703	@ default value "dashtype 2,2"
		704	*/
		705	for(i=0;i<2;i++){
		706	switch(i){
		707	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		708	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		709	}
		710	}
		711	break;
		712	case CIRCLE:
		713	/*
		714	@ circle xc,yc,width (2*r in pixels),color
		715	@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
		716	@ use command 'fillcolor color' to set the fillcolor
		717	@ may be set draggable / onclick
		718	@ will shrink / expand on zoom out / zoom in
		719	*/
		720	for(i=0;i<4;i++){
		721	switch(i){
		722	case 0: double_data[0] = get_real(infile,0);break; /* x */
		723	case 1: double_data[1] = get_real(infile,0);break; /* y */
		724	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
		725	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		726	decimals = find_number_of_digits(precision);
		727	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);
		728	click_cnt++;reset();
		729	break;
		730	}
		731	}
		732	break;
		733	case RAYS:
		734	/*
		735	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		736	@ draw rays in color 'color' and center (xc:yc)
		737	@ may be set draggable or onclick (the complete object, not an indiviual ray !)
		738	*/
		739	stroke_color=get_color(infile,0);
		740	i=0;
		741	while( ! done ){ /* get next until EOL*/
		742	if(i > MAX_INT - 1){canvas_error("to much rays in argument: repeat command multiple times to fit");}
		743	if( i > 3){
		744	double_data[i++] = double_data[0];
		745	double_data[i++] = double_data[1];
		746	}
		747	for(c=0; c<=1 ;c++){ /* switch x2px / y2px */
		748	double_data[i++]= get_double(infile,c,1);
		749	}
		750	}
		751	decimals = find_number_of_digits(precision);
		752	for(c=0; c<i;c = c+4){
		753	click_cnt++;
		754	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);
		755	}
		756	reset();
		757	break;
		758	case ARROW:
		759	/*
		760	@ arrow x1,y1,x2,y2,h,color
		761	@ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		762	@ use command 'linewidth int' to adjust thickness of the arrow
		763	@ may be set draggable / onclick
		764	*/
		765	for(i=0;i<6;i++){
		766	switch(i){
		767	case 0: double_data[0] = get_real(infile,0);break; /* x */
		768	case 1: double_data[1] = get_real(infile,0);break; /* y */
		769	case 2: double_data[2] = get_real(infile,0);break; /* x */
		770	case 3: double_data[3] = get_real(infile,0);break; /* y */
		771	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		772	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		773	decimals = find_number_of_digits(precision);
		774	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);
		775	click_cnt++;
		776	reset();
		777	break;
		778	}
		779	}
		780	break;
		781	case ARROW2:
		782	/*
		783	@ arrow2 x1,y1,x2,y2,h,color
		784	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		785	@ use command 'arrowhead int' to adjust the arrow head size
		786	@ use command 'linewidth int' to adjust thickness of the arrow
		787	@ may be set draggable / onclick
		788	*/
		789	for(i=0;i<6;i++){
		790	switch(i){
		791	case 0: double_data[0] = get_real(infile,0);break; /* x */
		792	case 1: double_data[1] = get_real(infile,0);break; /* y */
		793	case 2: double_data[2] = get_real(infile,0);break; /* x */
		794	case 3: double_data[3] = get_real(infile,0);break; /* y */
		795	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		796	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		797	decimals = find_number_of_digits(precision);
		798	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);
		799	click_cnt++;reset();
		800	break;
		801	}
		802	}
		803	break;
		804	case PARALLEL:
		805	/*
		806	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
		807	@ can not be set "onclick" or "drag xy"
		808	*/
		809	for( i = 0;i < 8; i++ ){
		810	switch(i){
		811	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		812	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		813	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		814	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		815	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		816	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		817	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		818	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		819	decimals = find_number_of_digits(precision);
		820	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);
		821	click_cnt++;reset();
		822	break;
		823	default: break;
		824	}
		825	}
		826	break;
		827	case TRIANGLE:
		828	/*
		829	@triangle x1,y1,x2,y2,x3,y3,color
		830	@may be set draggable / onclic
		831	*/
		832	for(i=0;i<7;i++){
		833	switch(i){
		834	case 0: double_data[0] = get_real(infile,0);break; /* x */
		835	case 1: double_data[1] = get_real(infile,0);break; /* y */
		836	case 2: double_data[2] = get_real(infile,0);break; /* x */
		837	case 3: double_data[3] = get_real(infile,0);break; /* y */
		838	case 4: double_data[4] = get_real(infile,0);break; /* x */
		839	case 5: double_data[5] = get_real(infile,0);break; /* y */
		840	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		841	decimals = find_number_of_digits(precision);
		842	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);
		843	click_cnt++;reset();
		844	break;
		845	default: break;
		846	}
		847	}
		848	break;
		849	case LATTICE:
		850	/*
		851	@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
		852	@can not be set "onclick" or "drag xy"
		853	*/
		854	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		855	for( i = 0; i<9; i++){
		856	switch(i){
		857	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		858	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		859	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
		860	case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values -> y-pixels*/
		861	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
		862	case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values -> y-pixels*/
		863	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		864	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		865	case 8: stroke_color=get_color(infile,1);
		866	decimals = find_number_of_digits(precision);
		867	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);
		868	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		869	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);
		870	add_to_buffer(tmp_buffer);
		871	break;
		872	default:break;
		873	}
		874	}
		875	reset();
		876	break;
		877	case SNAPTOGRID:
		878	/*
		879	@ snaptogrid
		880	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		881	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
7634	schaersvoo	882	@ 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	883	*/
7654	schaersvoo	884	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	885	break;
7663	schaersvoo	886	case USERTEXTAREA_XY:
		887	/*
		888	@ usertextarea_xy
		889	@ keyword
		890	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
		891	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
		892	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		893	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
		894	@ user drawings will not zoom on zooming (or pan on panning)
		895	*/
7749	schaersvoo	896	if(use_tooltip == TRUE){canvas_error("usertextarea_xy can not be combined with intooltip command");}
		897	if( use_input_xy == 1 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		898	fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s(.)\\^\\s(.)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)\|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
		899	use_input_xy = 2;
		900	break;
7652	schaersvoo	901	case USERINPUT_XY:
		902	/*
		903	@ userinput_xy
		904	@ keyword
		905	@ to be used in combination with command "userdraw object_type,color"
		906	@ 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)
		907	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
7749	schaersvoo	908	@ math input is allowed (e.g something like: 1+3,2*6,1/3,sqrt(3), sin(pi/4),10^-2,log(2)...)<br />eval function is 'protected' against code injection.
7652	schaersvoo	909	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
7653	schaersvoo	910	@ user drawings will not zoom on zooming (or pan on panning)
7652	schaersvoo	911	*/
7749	schaersvoo	912	if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
		913	/* add simple eval check to avoid code injection with unprotected eval(string) */
		914	fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s(.)\\^\\s(.)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)\|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
		915	use_input_xy = 1;
		916	break;
7614	schaersvoo	917	case USERDRAW:
		918	/*
		919	@ userdraw object_type,color
7663	schaersvoo	920	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrows</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li></ul>
7614	schaersvoo	921	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
		922	@ 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
		923	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
		924	@ 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)
		925	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
		926	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
		927	@ use command "debug" to view the output of javascript funcion read_canvas();
		928	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		929	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
7663	schaersvoo	930	@ may be combined with keyword 'userinput_xy' or
7653	schaersvoo	931	@ 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	932	*/
		933	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
		934	canvas_error("Only one userdraw primitive may be used: read documentation !!");
		935	}
		936	use_userdraw = TRUE;
7653	schaersvoo	937	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	938	draw_type = get_string_argument(infile,0);
		939	stroke_color = get_color(infile,1);
		940	if( strcmp(draw_type,"point") == 0 ){
		941	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		942	if(reply_format < 1 ){reply_format = 8;}
		943	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	944	if(use_input_xy == 1){
		945	add_input_circle(js_include_file,1,1);
		946	add_input_xy(js_include_file,canvas_root_id);
		947	}
7614	schaersvoo	948	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);
		949	}
		950	else
		951	if( strcmp(draw_type,"points") == 0 ){
		952	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		953	if(reply_format < 1 ){reply_format = 8;}
		954	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	955	if(use_input_xy == 1){
		956	add_input_circle(js_include_file,1,2);
		957	add_input_xy(js_include_file,canvas_root_id);
		958	}
7614	schaersvoo	959	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);
		960	}
		961	else
		962	if( strcmp(draw_type,"segment") == 0 ){
		963	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		964	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		965	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	966	if(use_input_xy == 1){
		967	add_input_segment(js_include_file,1);
		968	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		969	}
7614	schaersvoo	970	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		971	}
		972	else
7663	schaersvoo	973	if( strcmp(draw_type,"polyline") == 0 ){
		974	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
		975	if(reply_format < 1){reply_format = 11;}
		976	if( use_input_xy > 0 ){
		977	add_textarea_polyline(js_include_file);
		978	if( use_input_xy == 2 ){
		979	add_textarea_xy(js_include_file,canvas_root_id);
		980	}
		981	else
		982	{
		983	add_input_xy(js_include_file,canvas_root_id);
		984	}
		985	}
		986	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		987	}
		988	else
7614	schaersvoo	989	if( strcmp(draw_type,"segments") == 0 ){
		990	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		991	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		992	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	993	if(use_input_xy == 1){
		994	add_input_segment(js_include_file,2);
		995	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		996	}
7614	schaersvoo	997	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		998	}
		999	else
		1000	if( strcmp(draw_type,"circle") == 0 ){
		1001	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1002	if(reply_format < 1){reply_format = 10;}
		1003	/* 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	1004	if(use_input_xy == 1){
		1005	add_input_circle(js_include_file,2,1);
		1006	add_input_xyr(js_include_file,canvas_root_id);
		1007	}
7614	schaersvoo	1008	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]);
		1009	}
		1010	else
		1011	if( strcmp(draw_type,"circles") == 0 ){
		1012	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1013	if(reply_format < 1){reply_format = 10;}
		1014	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		1015	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	1016	if(use_input_xy == 1){
		1017	add_input_circle(js_include_file,2,2);
		1018	add_input_xyr(js_include_file,canvas_root_id);
		1019	}
7614	schaersvoo	1020	}
		1021	else
		1022	if(strcmp(draw_type,"crosshair") == 0 ){
		1023	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1024	if(reply_format < 1){reply_format = 8;}
		1025	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1026	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1027	if(use_input_xy == 1){
		1028	add_input_crosshair(js_include_file,1);
		1029	add_input_xy(js_include_file,canvas_root_id);
		1030	}
7614	schaersvoo	1031	}
		1032	else
		1033	if(strcmp(draw_type,"crosshairs") == 0 ){
		1034	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1035	if(reply_format < 1){reply_format = 8;}
		1036	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1037	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1038	if(use_input_xy == 1){
		1039	add_input_crosshair(js_include_file,2);
		1040	add_input_xy(js_include_file,canvas_root_id);
		1041	}
7614	schaersvoo	1042	}
		1043	else
		1044	if(strcmp(draw_type,"freehandline") == 0 ){
		1045	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1046	if(reply_format < 1){reply_format = 6;}
		1047	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	1048	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1049	}
		1050	else
		1051	if(strcmp(draw_type,"freehandlines") == 0 ){
		1052	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1053	if(reply_format < 1){reply_format = 6;}
		1054	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	1055	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1056	}
		1057	else
		1058	if(strcmp(draw_type,"path") == 0 ){
		1059	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1060	if(reply_format < 1){reply_format = 6;}
		1061	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	1062	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1063	}
		1064	else
		1065	if(strcmp(draw_type,"paths") == 0 ){
		1066	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1067	if(reply_format < 1){reply_format = 6;}
		1068	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	1069	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1070	}
		1071	else
		1072	if(strcmp(draw_type,"arrows") == 0 ){
		1073	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1074	if(reply_format < 1){reply_format = 11;}
		1075	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	1076	if(use_input_xy == 1){
		1077	add_input_arrow(js_include_file,2);
		1078	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1079	}
7614	schaersvoo	1080	}
		1081	else
		1082	if(strcmp(draw_type,"arrow") == 0 ){
		1083	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1084	if(reply_format < 1){reply_format = 11;}
		1085	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	1086	if(use_input_xy == 1){
		1087	add_input_arrow(js_include_file,1);
		1088	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1089	}
7614	schaersvoo	1090	}
		1091	else
		1092	if(strcmp(draw_type,"polygon") == 0){
		1093	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1094	if(reply_format < 1){reply_format = 2;}
		1095	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	1096	if( use_input_xy > 0 ){
		1097	add_textarea_polygon(js_include_file);
		1098	if( use_input_xy == 2 ){
		1099	add_textarea_xy(js_include_file,canvas_root_id);
		1100	}
		1101	else
		1102	{
		1103	add_input_xy(js_include_file,canvas_root_id);
		1104	}
		1105	}
7614	schaersvoo	1106	}
		1107	else
		1108	if(strncmp(draw_type,"poly",4) == 0){
		1109	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		1110	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1111	if(reply_format < 1){reply_format = 2;}
		1112	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	1113	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1114	}
		1115	else
		1116	if(strcmp(draw_type,"triangle") == 0){
		1117	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1118	if(reply_format < 1){reply_format = 2;}
		1119	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	1120	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1121	}
		1122	else
		1123	if( strcmp(draw_type,"line") == 0 ){
		1124	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1125	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1126	if(reply_format < 1){reply_format = 11;}
		1127	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1128	if( use_input_xy == 1 ){
		1129	add_textarea_line(js_include_file,1);
		1130	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1131	}
7614	schaersvoo	1132	}
		1133	else
		1134	if( strcmp(draw_type,"lines") == 0 ){
		1135	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1136	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1137	if(reply_format < 1){reply_format = 11;}
		1138	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1139	if( use_input_xy == 1 ){
7746	schaersvoo	1140	add_textarea_line(js_include_file,2);
7747	schaersvoo	1141	add_input_x1y1x2y2(js_include_file,canvas_root_id);
7746	schaersvoo	1142	}
7614	schaersvoo	1143	}
		1144	else
		1145	if( strcmp(draw_type,"rects") == 0){
		1146	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1147	if(reply_format < 1){reply_format = 2;}
		1148	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	1149	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1150	}
		1151	else
		1152	if( strcmp(draw_type,"roundrects") == 0){
		1153	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1154	if(reply_format < 1){reply_format = 2;}
		1155	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	1156	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1157	}
		1158	else
		1159	if( strcmp(draw_type,"rect") == 0){
		1160	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1161	if(reply_format < 1){reply_format = 2;}
		1162	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	1163	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1164	}
		1165	else
		1166	if( strcmp(draw_type,"roundrect") == 0){
		1167	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1168	if(reply_format < 1){reply_format = 2;}
		1169	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	1170	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1171	}
		1172	else
		1173	if( strcmp(draw_type,"text") == 0){
		1174	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1175	if(reply_format < 1){reply_format = 17;}
		1176	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	1177	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1178	}
		1179	else
		1180	{
		1181	canvas_error("unknown drawtype or typo? ");
		1182	}
		1183	reset();
		1184	break;
		1185	case PLOTSTEPS:
		1186	/*
		1187	@ plotsteps a_number
		1188	@ default 150
		1189	@ use with care !
		1190	*/
		1191	plot_steps = (int) (get_real(infile,1));
		1192	break;
		1193	case FONTSIZE:
		1194	/*
		1195	@fontsize font_size
		1196	@default value 12
		1197	*/
		1198	font_size = (int) (get_real(infile,1));
		1199	break;
		1200	case FONTCOLOR:
		1201	/*
		1202	@fontcolor color
		1203	@color: hexcolor or colorname
		1204	@default: black
		1205	@example usage: x/y-axis text
		1206	*/
		1207	font_color = get_color(infile,1);
		1208	break;
		1209	case ANIMATE:
		1210	/*
		1211	@animate type
		1212	@type may be "point" (nothing else , yet...)
		1213	@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		1214	@will animate a point on the next plot/curve command
		1215	@the curve will not be draw
		1216	@moves repeatedly from xmin to xmax
		1217	*/
		1218	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
		1219	break;
		1220	case CURVE:
		1221	/*
		1222	@curve color,formula(x)
		1223	@plot color,formula(x)
		1224	@use command trange before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1225	@use command "precision" to increase the number of digits of the plotted points
		1226	@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
		1227	@may be set draggable / onclick
		1228	*/
		1229	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1230	use_parametric = FALSE;
		1231	stroke_color = get_color(infile,0);
		1232	char *fun1 = get_string_argument(infile,0);
		1233	char *fun2 = get_string_argument(infile,1);
		1234	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
		1235	use_parametric = FALSE;
		1236	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);
		1237	click_cnt++;
		1238	}
		1239	else
		1240	{
		1241	stroke_color = get_color(infile,0);
		1242	char *fun1 = get_string_argument(infile,1);
		1243	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1244	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);
		1245	click_cnt++;
		1246	}
		1247	animation_type = 9;/* rest to curve plotting without animation */
		1248	reset();
		1249	break;
		1250	case FLY_TEXT:
		1251	/*
		1252	@ text fontcolor,x,y,font,text_string
		1253	@ font may be described by keywords : giant,huge,normal,small,tiny
		1254	@ use command 'fontsize' to increase base fontsize for the keywords
		1255	@ may be set "onclick" or "drag xy"
		1256	@ backwards compatible with flydraw
		1257	@ unicode supported: text red,0,0,huge,\\u2232
		1258	@ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1259	@ 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.
		1260	*/
		1261	for(i = 0; i < 5 ;i++){
		1262	switch(i){
		1263	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		1264	case 1: double_data[0] = get_real(infile,0);break; /* x */
		1265	case 2: double_data[1] = get_real(infile,0);break; /* y */
		1266	case 3: fly_font = get_string_argument(infile,0);
		1267	if(strcmp(fly_font,"giant") == 0){
		1268	font_size = (int)(font_size + 24);
		1269	}
		1270	else
		1271	{
		1272	if(strcmp(fly_font,"huge") == 0){
		1273	font_size = (int)(font_size + 14);
		1274	}
		1275	else
		1276	{
		1277	if(strcmp(fly_font,"large") == 0){
		1278	font_size = (int)(font_size + 6);
		1279	}
		1280	else
		1281	{
		1282	if(strcmp(fly_font,"small") == 0){
		1283	font_size = (int)(font_size - 4);
		1284	if(font_size<0){font_size = 8;}
		1285	}
		1286	}
		1287	}
		1288	}
		1289	break; /* font_size ! */
		1290	case 4:
		1291	temp = get_string_argument(infile,1);
		1292	decimals = find_number_of_digits(precision);
		1293	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);
		1294	click_cnt++;reset();break;
		1295	default:break;
		1296	}
		1297	}
		1298	break;
		1299	case FLY_TEXTUP:
		1300	/*
		1301	@ textup fontcolor,x,y,font,text_string
		1302	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1303	@ font may be described by keywords : giant,huge,normal,small,tiny
		1304	@ use command 'fontsize' to increase base fontsize for the keywords
		1305	@ backwards compatible with flydraw
		1306	@ unicode supported: textup red,0,0,huge,\\u2232
		1307	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1308	@ 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.
		1309	*/
		1310	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1311	for(i = 0; i<5 ;i++){
		1312	switch(i){
		1313	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1314	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1315	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1316	case 3: fly_font = get_string_argument(infile,0);
		1317	if(strcmp(fly_font,"giant") == 0){
		1318	font_size = (int)(font_size + 24);
		1319	}
		1320	else
		1321	{
		1322	if(strcmp(fly_font,"huge") == 0){
		1323	font_size = (int)(font_size + 14);
		1324	}
		1325	else
		1326	{
		1327	if(strcmp(fly_font,"large") == 0){
		1328	font_size = (int)(font_size + 6);
		1329	}
		1330	else
		1331	{
		1332	if(strcmp(fly_font,"small") == 0){
		1333	font_size = (int)(font_size - 4);
		1334	if(font_size<0){font_size = 8;}
		1335	}
		1336	}
		1337	}
		1338	}
		1339	break; /* font_size ! */
		1340	case 4:
		1341	decimals = find_number_of_digits(precision);
		1342	temp = get_string_argument(infile,1);
		1343	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);
		1344	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1345	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);
		1346	add_to_buffer(tmp_buffer);
		1347	break;
		1348	default:break;
		1349	}
		1350	}
		1351	reset();
		1352	break;
		1353	case FONTFAMILY:
		1354	/*
		1355	@ fontfamily font_description
		1356	@ set the font family; for browsers that support it
		1357	@ font_description: Ariel ,Courier, Helvetica etc
		1358	@ 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
		1359	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1360	*/
		1361	font_family = get_string(infile,1);
		1362	break;
		1363	case STRINGUP:
		1364	/*
		1365	@ stringup color,x,y,rotation_degrees,the text string
		1366	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1367	@ unicode supported: stringup red,0,0,45,\\u2232
		1368	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		1369
		1370	*/
		1371	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		1372	for(i=0;i<6;i++){
		1373	switch(i){
		1374	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1375	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1376	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1377	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		1378	case 4: decimals = find_number_of_digits(precision);
		1379	temp = get_string_argument(infile,1);
		1380	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);
		1381	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1382	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);
		1383	add_to_buffer(tmp_buffer);
		1384	break;
		1385	default:break;
		1386	}
		1387	}
		1388	reset();
		1389	break;
		1390	case STRING:
		1391	/*
		1392	@ string color,x,y,the text string
		1393	@ may be set "onclick" or "drag xy"
		1394	@ unicode supported: string red,0,0,\\u2232
		1395	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
		1396	*/
		1397	for(i=0;i<5;i++){
		1398	switch(i){
		1399	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1400	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		1401	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		1402	case 3: decimals = find_number_of_digits(precision);
		1403	temp = get_string_argument(infile,1);
		1404	decimals = find_number_of_digits(precision);
		1405	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);
		1406	click_cnt++;reset();break;
		1407	break;
		1408	default:break;
		1409	}
		1410	}
		1411	break;
		1412	case MATHML:
		1413	/*
		1414	@ mathml x1,y1,x2,y2,mathml_string
		1415	@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
		1416	@ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1417	@ 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();"
		1418	@ 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	1419
7614	schaersvoo	1420	*/
		1421	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1422	for(i=0;i<5;i++){
		1423	switch(i){
		1424	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1425	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1426	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1427	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1428	case 4: decimals = find_number_of_digits(precision);
		1429	if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
		1430	temp = get_string(infile,1);
		1431	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1432	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);
		1433	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1434	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);
		1435	add_to_buffer(tmp_buffer);
		1436	/*
		1437	in case inputs are present , trigger adding the read_mathml()
		1438	if no other reply_format is defined
		1439	note: all other reply types will include a reading of elements with id='mathml'+p)
		1440	*/
		1441	if(strstr(temp,"mathml0") != NULL){
		1442	if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
		1443	}
		1444	break;
		1445	default:break;
		1446	}
		1447	}
		1448	reset();
		1449	break;
		1450	case HTTP:
		1451	/*
		1452	@http x1,y1,x2,y2,http://some_adress.com
		1453	@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
		1454	@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1455	@can not be 'set onclick' or 'drag xy'
		1456	*/
		1457	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
		1458	for(i=0;i<5;i++){
		1459	switch(i){
		1460	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1461	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1462	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1463	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1464	case 4: decimals = find_number_of_digits(precision);
		1465	temp = get_string(infile,1);
		1466	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1467	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);
		1468	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1469	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);
		1470	add_to_buffer(tmp_buffer);
		1471	break;
		1472	}
		1473	}
		1474	reset();
		1475	break;
		1476	case HTML:
		1477	/*
		1478	@ html x1,y1,x2,y2,html_string
		1479	@ all tags are allowed
		1480	@ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1481	@ 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.
		1482
		1483	note: uses the same code as 'mathml'
		1484	*/
		1485	break;
		1486	case X_AXIS_STRINGS:
		1487	/*
		1488	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1489	@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1490	@ use these x-axis values in stead of default xmin...xmax
		1491	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1492	@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
		1493	@ 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
		1494	@ 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
		1495	*/
		1496	temp = get_string(infile,1);
		1497	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1498	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1499	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		1500	use_axis_numbering = 1;
		1501	break;
		1502	case Y_AXIS_STRINGS:
		1503	/*
		1504	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1505	@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1506	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1507	@ use these y-axis values in stead of default ymin...ymax
		1508	@ 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
		1509	*/
		1510	temp = get_string(infile,1);
		1511	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1512	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1513	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		1514	use_axis_numbering = 1;
		1515	break;
		1516
		1517	case AXIS_NUMBERING:
		1518	/*
		1519	@ axisnumbering
		1520	@ keyword, no aguments required
		1521	*/
		1522	use_axis_numbering = 1;
		1523	break;
		1524	case AXIS:
		1525	/*
		1526	@ axis
		1527	@ keyword, no aguments required
		1528
		1529	*/
		1530	use_axis = TRUE;
		1531	break;
7654	schaersvoo	1532	case SGRAPH:
		1533	/*
		1534	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		1535	@ primitive implementation of a 'broken scale' graph...
		1536	@ not very versatile.
		1537	@ 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
		1538	*/
		1539	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
		1540	for(i = 0 ; i < 8 ;i++){
		1541	switch(i){
		1542	case 0:double_data[0] = get_real(infile,0);break;
		1543	case 1:double_data[1] = get_real(infile,0);break;
		1544	case 2:double_data[2] = get_real(infile,0);break;
		1545	case 3:double_data[3] = get_real(infile,0);break;
		1546	case 4:int_data[0] = (int)(get_real(infile,0));break;
		1547	case 5:int_data[1] = (int)(get_real(infile,0));break;
		1548	case 6:stroke_color = get_color(infile,0);break;
		1549	case 7:font_color = get_color(infile,1);
7658	schaersvoo	1550	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	1551	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7658	schaersvoo	1552	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	1553	add_to_buffer(tmp_buffer);
		1554	break;
		1555	default:break;
		1556	}
		1557	}
		1558	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
		1559	break;
7614	schaersvoo	1560	case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
		1561	/*
		1562	@ grid step_x,step_y,gridcolor
		1563	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1564	@ 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	1565	@ 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	1566	@ can not be set "onclick" or "drag xy"
		1567	@ 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')
		1568	@ 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')
		1569	@ 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')
		1570	*/
7729	schaersvoo	1571	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
7614	schaersvoo	1572	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		1573	for(i=0;i<4;i++){
		1574	switch(i){
		1575	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		1576	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		1577	case 2:
		1578	if( use_axis == TRUE ){
		1579	stroke_color = get_color(infile,0);
		1580	done = FALSE;
		1581	int_data[0] = (int) (get_real(infile,0));/* xminor */
		1582	int_data[1] = (int) (get_real(infile,0));/* yminor */
		1583	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		1584	fill_color = get_color(infile,1); /* used as axis_color*/
		1585	}
		1586	else
		1587	{
		1588	int_data[0] = 1;
		1589	int_data[1] = 1;
		1590	stroke_color = get_color(infile,1);
		1591	fill_color = stroke_color;
		1592	}
		1593	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	1594	/* set snap_x snap_y values in pixels */
7647	schaersvoo	1595	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	1596	/* 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){ */
		1597
		1598	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);
		1599	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1600	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);
		1601	add_to_buffer(tmp_buffer);
		1602	break;
		1603	}
		1604	}
		1605	reset();
		1606	break;
		1607	case OPACITY:
		1608	/*
		1609	@ opacity 0-255,0-255
		1610	@
		1611	*/
		1612	for(i = 0 ; i<2;i++){
		1613	switch(i){
		1614	case 0: double_data[0]=(int)(get_real(infile,0));break;
		1615	case 1: double_data[1]=(int)(get_real(infile,1));break;
		1616	default: break;
		1617	}
		1618	}
		1619	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 ? */
		1620	stroke_opacity = (double) (0.0039215double_data[0]);/ 0.0 - 1.0 */
		1621	fill_opacity = (double) (0.0039215double_data[1]);/ 0.0 - 1.0 */
		1622	break;
		1623	case ROTATE:
		1624	/*
		1625	@rotate rotation_angle
		1626	@
		1627	*/
		1628	use_rotate = TRUE;
		1629	use_translate = TRUE;
		1630	translate_x = x2px(0);
		1631	translate_y = y2px(0);
		1632	angle = get_real(infile,1);
		1633	break;
		1634	case KILLTRANSLATION:
		1635	/*
		1636	killtranslation
		1637	*/
		1638	break;
		1639	case TRANSLATION:
		1640	/*
		1641	@translation tx,ty
		1642	@
		1643	*/
		1644	use_translate = TRUE;
		1645	translate_x = get_real(infile,0);
		1646	translate_y = get_real(infile,1);
		1647	break;
		1648	case DASHED:
		1649	/*
		1650	@ keyword "dashed"
		1651	@ next object will be drawn with a dashed line
		1652	@ change dashing scheme by using command "dashtype int,int)
		1653	*/
		1654	use_dashed = TRUE;
		1655	break;
		1656	case FILLED:
		1657	/*
		1658	@ keyword "filled"
		1659	@ the next 'fillable' object (only) will be filled
		1660	@ use command "fillcolor color" to set fillcolor
		1661	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		1662	@ 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 !
		1663	*/
		1664	use_filled = TRUE;
		1665	break;
		1666	case STYLE:
		1667	/*
		1668	@highlight color,opacity,linewidth
		1669	@ NOT IMPLEMENTED
		1670	@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
		1671	*/
		1672	break;
		1673	case FILLCOLOR:
		1674	/*
		1675	@ fillcolor colorname or #hex
		1676	@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		1677	@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		1678	*/
		1679	fill_color = get_color(infile,1);
		1680	break;
		1681	case STROKECOLOR:
		1682	/*
		1683	@ strokecolor colorname or #hex
		1684	@ to be used for commands that do not supply a color argument (like command 'linegraph')
		1685	*/
		1686	stroke_color = get_color(infile,1);
		1687	break;
		1688	case BGIMAGE:
		1689	/*
		1690	@bgimage image_location
		1691	@use an image as background .<br />(we use the background of 'canvas_div' )
		1692	@the background image will be resized to match "width = xsize" and "height = ysize"
		1693	*/
		1694	URL = get_string(infile,1);
		1695	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);
		1696	break;
		1697	case BGCOLOR:
		1698	/*
		1699	@bgcolor colorname or #hex
		1700	@use this color as background of the "div" containing the canvas(es)
		1701	*/
		1702	/* [255,255,255]*/
		1703	bgcolor = get_string(infile,1);
		1704	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		1705	int found = 0;
		1706	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		1707	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		1708	bgcolor = colors[i].hex;
		1709	found = 1;
		1710	break;
		1711	}
		1712	}
		1713	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		1714	}
		1715	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		1716	break;
		1717	case COPY:
		1718	/*
		1719	@ copy x,y,x1,y1,x2,y2,[filename URL]
		1720	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		1721	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
		1722	@ [filename] is the URL of the image
		1723	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1724	@ 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
		1725	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1726
		1727	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1728	draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
		1729	*/
		1730	for(i = 0 ; i<7;i++){
		1731	switch(i){
		1732	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		1733	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		1734	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		1735	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		1736	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		1737	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		1738	case 6: URL = get_string(infile,1);
		1739	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		1740	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		1741	if( drag_type > -1 ){
		1742	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1743	if(reply_format < 1 ){reply_format = 20;}
		1744	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);
		1745	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1746	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);
		1747	drag_type = -1;
		1748	ext_img_cnt++;
		1749	}
		1750	else
		1751	{
		1752	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1753	/*
		1754	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
		1755	*/
		1756	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]);
		1757	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1758	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]);
		1759	}
		1760	add_to_buffer(tmp_buffer);
		1761	break;
		1762	default: break;
		1763	}
		1764	}
		1765	reset();
		1766	break;
		1767	/*
		1768	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1769	img Specifies the image, canvas, or video element to use
		1770	sx The x coordinate where to start clipping : x1 = int_data[0]
		1771	sy The y coordinate where to start clipping : x2 = int_data[1]
		1772	swidth The width of the clipped image : int_data[2] - int_data[0]
		1773	sheight The height of the clipped image : int_data[3] - int_data[1]
		1774	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		1775	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		1776	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		1777	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		1778	*/
		1779	case COPYRESIZED:
		1780	/*
		1781	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
		1782	@ 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
		1783	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		1784	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1785	@ 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
		1786	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1787	*/
		1788	for(i = 0 ; i<9;i++){
		1789	switch(i){
		1790	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		1791	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		1792	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		1793	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		1794	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		1795	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		1796	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		1797	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		1798	case 8: URL = get_string(infile,1);
		1799	if( drag_type > -1 ){
		1800	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1801	if(reply_format < 1 ){reply_format = 20;}
		1802	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);
		1803	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1804	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);
		1805	drag_type = -1;
		1806	ext_img_cnt++;
		1807	}
		1808	else
		1809	{
		1810	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1811	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]);
		1812	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1813	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]);
		1814	}
		1815	add_to_buffer(tmp_buffer);
		1816	default: break;
		1817	}
		1818	}
		1819	reset();
		1820	break;
		1821	case BUTTON:
		1822	/*
		1823	button x,y,value
		1824	*/
		1825	break;
		1826	case INPUTSTYLE:
		1827	/*
		1828	@ inputstyle style_description
		1829	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		1830	*/
		1831	input_style = get_string(infile,1);
		1832	break;
		1833	case INPUT:
		1834	/*
		1835	@ input x,y,size,editable,value
		1836	@ to set inputfield "readonly", use editable = 0
		1837	@ only active inputfields (editable = 1) will be read with read_canvas();
		1838	@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
		1839	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1840	*/
		1841	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
		1842	for(i = 0 ; i<5;i++){
		1843	switch(i){
		1844	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		1845	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		1846	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		1847	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1848	case 4:
		1849	temp = get_string_argument(infile,1);
		1850	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);
		1851	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1852	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);
		1853	add_to_buffer(tmp_buffer);
		1854	input_cnt++;break;
		1855	default: break;
		1856	}
		1857	}
		1858	if(reply_format < 1 ){reply_format = 15;}
		1859	reset();
		1860	break;
		1861	case TEXTAREA:
		1862	/*
		1863	@ textarea x,y,cols,rows,readonly,value
		1864	@ may be further controlled by "inputstyle"
		1865	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1866	*/
		1867	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
		1868	for(i = 0 ; i<6;i++){
		1869	switch(i){
		1870	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		1871	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		1872	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		1873	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		1874	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1875	case 5: temp = get_string_argument(infile,1);
		1876	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);
		1877	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1878	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);
		1879	add_to_buffer(tmp_buffer);
		1880	input_cnt++;break;
		1881	default: break;
		1882	}
		1883	}
		1884	if(reply_format < 1 ){reply_format = 15;}
		1885	reset();
		1886	break;
		1887	case MOUSE_PRECISION:
		1888	/*
		1889	@ precision int
		1890	@ 10 = 1 decimal ; 100 = 2 decimals etc
		1891	@ may be used / changed before every object
		1892	*/
		1893	precision = (int) (get_real(infile,1));
		1894	break;
		1895	case ZOOM:
		1896	/*
		1897	@ zoom button_color
		1898	@ introduce a controlpanel at the lower right corner
		1899	@ 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
		1900	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		1901	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
		1902	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		1903	@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
		1904	@ 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 !!
		1905	*/
7653	schaersvoo	1906	fprintf(js_include_file,"use_pan_and_zoom = 1;");
7614	schaersvoo	1907	if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
		1908	/* we use BG_CANVAS (0) */
		1909	stroke_color = get_color(infile,1);
7653	schaersvoo	1910	string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	1911	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7653	schaersvoo	1912	snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	1913	add_to_buffer(tmp_buffer);
		1914	done = TRUE;
		1915	break;
		1916	case ONCLICK:
		1917	/*
		1918	@ onclick
		1919	@ keyword, no arguments
		1920	@ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
		1921	@ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
		1922	@ NOTE: not all objects may be set clickable
		1923	*/
		1924
		1925	onclick = 1;
		1926	break;
		1927	case DRAG:
		1928	/*
		1929	@ drag [x][y][xy]
		1930	@ the next object will be draggable in x / y / xy direction
		1931	@ the displacement can be read by 'javascript:read_dragdrop();'
		1932	@ 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.
		1933	@ 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 !!
		1934	*/
		1935	temp = get_string(infile,1);
		1936	if(strstr(temp,"xy") != NULL ){
		1937	drag_type = 0;
		1938	}
		1939	else
		1940	{
		1941	if(strstr(temp,"x") != NULL ){
		1942	drag_type = 1;
		1943	}
		1944	else
		1945	{
		1946	drag_type = 2;
		1947	}
		1948	}
		1949	onclick = 2;
		1950	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
		1951	break;
		1952	case BLINK:
		1953	/*
		1954	@ blink time(seconds)
		1955	@ NOT IMPLEMETED -YET
		1956	*/
		1957	break;
		1958	case MOUSE:
		1959	/*
		1960	@ mouse color,fontsize
		1961	@ will display the cursor coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
		1962	*/
		1963	use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
		1964	stroke_color = get_color(infile,0);
		1965	font_size = (int) (get_real(infile,1));
		1966	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
		1967	break;
		1968	case INTOOLTIP:
		1969	/*
		1970	@ intooltip link_text
		1971	@ link_text is a single line (span-element)
		1972	@ link_text may also be an image URL http://some_server/images/my_image.png
		1973	@ link_text may contain HTML markup
		1974	@ the canvas will be displayed in a tooltip on 'link_text'
		1975	@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
		1976	*/
7652	schaersvoo	1977	if(use_input_xy == TRUE){canvas_error("intooltip can not be combined with userinput_xy command");}
7614	schaersvoo	1978	use_tooltip = TRUE;
		1979	tooltip_text = get_string(infile,1);
		1980	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		1981	break;
		1982	case AUDIO:
		1983	/*
		1984	@ audio x,y,w,h,loop,visible,audiofile location
		1985	@ x,y : left top corner of audio element (in xrange / yrange)
		1986	@ w,y : width and height in pixels
		1987	@ loop : 0 or 1 ( 1 = loop audio fragment)
		1988	@ visible : 0 or 1 (1 = show controls)
		1989	@ audio format may be in .mp3 or .ogg
		1990	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		1991	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		1992	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		1993	@ 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 />
		1994	*/
		1995	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		1996	for(i=0;i<7;i++){
		1997	switch(i){
		1998	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		1999	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2000	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2001	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2002	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		2003	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
		2004	case 6:
		2005	temp = get_string(infile,1);
		2006	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		2007	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		2008	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);
		2009	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2010	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);
		2011	add_to_buffer(tmp_buffer);
		2012	break;
		2013	default:break;
		2014	}
		2015	}
		2016	reset();
		2017	break;
		2018	case VIDEO:
		2019	/*
		2020	@ video x,y,w,h,videofile location
		2021	@ x,y : left top corner of audio element (in xrange / yrange)
		2022	@ w,y : width and height in pixels
		2023	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		2024	@ video format may be in *.mp4 (todo:other formats)
		2025	*/
		2026	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
		2027	for(i=0;i<5;i++){
		2028	switch(i){
		2029	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2030	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2031	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2032	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2033	case 4: temp = get_string(infile,1);
		2034	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);
		2035	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2036	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);
		2037	add_to_buffer(tmp_buffer);
		2038	break;
		2039	default:break;
		2040	}
		2041	}
		2042	reset();
		2043	break;
		2044	case HATCHFILL:
		2045	/*
		2046	@ hatchfill x0,y0,dx,dy,color
		2047	@ x0,y0 in xrange / yrange
		2048	@ distances dx,dy in pixels
		2049	*/
		2050	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		2051	for(i=0;i<5;i++){
		2052	switch(i){
		2053	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2054	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2055	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2056	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2057	case 4: stroke_color = get_color(infile,1);
		2058	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2059	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);
		2060	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2061	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);
		2062	add_to_buffer(tmp_buffer);
		2063	break;
		2064	default:break;
		2065	}
		2066	}
		2067	reset();
		2068	break;
7647	schaersvoo	2069	case DIAMONDFILL:
		2070	/*
		2071	@ diamondfill x0,y0,dx,dy,color
		2072	@ x0,y0 in xrange / yrange
		2073	@ distances dx,dy in pixels
		2074	*/
		2075	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
		2076	for(i=0;i<5;i++){
		2077	switch(i){
		2078	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2079	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2080	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2081	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2082	case 4: stroke_color = get_color(infile,1);
		2083	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2084	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);
		2085	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2086	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);
		2087	add_to_buffer(tmp_buffer);
		2088	break;
		2089	default:break;
		2090	}
		2091	}
		2092	reset();
		2093	break;
7614	schaersvoo	2094	case GRIDFILL:
		2095	/*
		2096	@ gridfill x0,y0,dx,dy,color
		2097	@ x0,y0 in xrange / yrange
		2098	@ distances dx,dy in pixels
		2099	*/
		2100	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		2101	for(i=0;i<5;i++){
		2102	switch(i){
		2103	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2104	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2105	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2106	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2107	case 4: stroke_color = get_color(infile,1);
		2108	/* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2109	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);
		2110	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2111	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);
		2112	add_to_buffer(tmp_buffer);
		2113	break;
		2114	default:break;
		2115	}
		2116	}
		2117	reset();
		2118	break;
		2119	case DOTFILL:
		2120	/*
		2121	@ dotfill x0,y0,dx,dy,color
		2122	@ x0,y0 in xrange / yrange
		2123	@ distances dx,dy in pixels
		2124	@ radius of dots is linewidth
		2125	*/
		2126	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
		2127	for(i=0;i<5;i++){
		2128	switch(i){
		2129	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2130	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2131	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2132	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2133	case 4: stroke_color = get_color(infile,1);
		2134	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
		2135	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);
		2136	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2137	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);
		2138	add_to_buffer(tmp_buffer);
		2139	break;
		2140	default:break;
		2141	}
		2142	}
		2143	reset();
		2144	break;
		2145	case IMAGEFILL:
		2146	/*
		2147	@ imagefill dx,dy,image_url
		2148	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2149	@ After pattern filling ,the fill-color should be reset !
		2150	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2151	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		2152	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		2153	@ if dx,dy is larger than the image, the whole image will be background to the next object.
		2154	*/
		2155	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		2156	for(i=0 ;i < 3 ; i++){
		2157	switch(i){
		2158	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2159	case 1:int_data[1] = (int) (get_real(infile,0));break;
		2160	case 2: URL = get_string_argument(infile,1);
		2161	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);
		2162	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2163	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);
		2164	add_to_buffer(tmp_buffer);
		2165	break;
		2166	}
		2167	}
		2168	break;
		2169	case FILLTOBORDER:
		2170	/*
		2171	@ filltoborder x,y,bordercolor,color
		2172	@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
		2173	@ any other color will not act as border to the bucket fill
		2174	@ use this command after all boundary objects are declared.
		2175	@ 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..
		2176	*/
		2177	for(i=0 ;i < 4 ; i++){
		2178	switch(i){
		2179	case 0:double_data[0] = get_real(infile,0);break;
		2180	case 1:double_data[1] = get_real(infile,0);break;
		2181	case 2:bgcolor = get_color(infile,0);break;
		2182	case 3:fill_color = get_color(infile,1);
		2183	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2184	js_function[DRAW_FILLTOBORDER] = 1;
		2185	add_js_filltoborder(js_include_file,canvas_root_id);
		2186	}
		2187	decimals = find_number_of_digits(precision);
		2188	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));
		2189	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2190	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));
		2191	add_to_buffer(tmp_buffer);
		2192	break;
		2193	default:break;
		2194	}
		2195	}
		2196	break;
		2197	case FLOODFILL:
		2198	/*
		2199	@ floodfill x,y,color
		2200	@ alternative syntax: fill x,y,color
		2201	@ fill the region of point (x:y) with color 'color'
		2202	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		2203	@ use this command after all boundary objects are declared.
		2204	@ Use command 'clickfill,color' for user click driven flood fill.
		2205	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2206	@ 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..
		2207	*/
		2208	for(i=0 ;i < 4 ; i++){
		2209	switch(i){
		2210	case 0:double_data[0] = get_real(infile,0);break;
		2211	case 1:double_data[1] = get_real(infile,0);break;
		2212	case 2:fill_color = get_color(infile,1);
		2213	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2214	js_function[DRAW_FLOODFILL] = 1;
		2215	add_js_floodfill(js_include_file,canvas_root_id);
		2216	}
		2217	decimals = find_number_of_digits(precision);/floodfill(interaction,x,y,[R,G,B,A]) /
		2218	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));
		2219	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2220	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));
		2221	add_to_buffer(tmp_buffer);
		2222	break;
		2223	default:break;
		2224	}
		2225	}
		2226	break;
		2227	case CLICKFILLMARGE:
		2228	clickfillmarge = (int) (get_real(infile,1));
		2229	break;
		2230	/*
		2231	@ clickfillmarge int
		2232	@ default 20 (pixels)
		2233	@ 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[])
		2234	*/
		2235	case CLICKFILL:
		2236	/*
		2237	@ clickfill fillcolor
		2238	@ user left mouse click will floodfill the area with fillcolor
		2239	@ multiple areas may be coloured
		2240	@ 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)
		2241	@ the answer will be read as the (x:y) click coordinates per coloured area
		2242	@ background color of main div may be set by using command "bgcolor color"
		2243	@ may not be combined with command "userdraw"
		2244	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2245	*/
		2246	fill_color = get_color(infile,1);
		2247	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2248	js_function[DRAW_FLOODFILL] = 1;
		2249	add_js_floodfill(js_include_file,canvas_root_id);
		2250	}
7653	schaersvoo	2251	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	2252	add_read_canvas(1);
		2253	break;
		2254	case SETPIXEL:
		2255	/*
		2256	@ setpixel x,y,color
		2257	@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
		2258	@ pixels can not be dragged or clicked
		2259	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2260	*/
		2261	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2262	for(i=0;i<3;i++){
		2263	switch(i){
		2264	case 0: double_data[0] = get_real(infile,0); break; /* x */
		2265	case 1: double_data[1] = get_real(infile,0); break; /* y */
		2266	case 2: stroke_color = get_color(infile,1);
		2267	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2268	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2269	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2270	add_to_buffer(tmp_buffer);
		2271	break;
		2272	default:break;
		2273	}
		2274	}
		2275	reset();
		2276	break;
		2277	case PIXELSIZE:
		2278	/*
		2279	@ pixelsize int
		2280	@ in case you want to deviate from default pixelsize = 1...
		2281	*/
		2282	pixelsize = (int) get_real(infile,1);
		2283	break;
		2284	case PIXELS:
		2285	/*
		2286	@ pixels color,x1,y1,x2,y2,x3,y3...
		2287	@ Draw "points" with diameter 1 pixel
		2288	@ pixels can not be dragged or clicked
		2289	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2290	*/
		2291	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2292	stroke_color=get_color(infile,0);
		2293	i=0;
		2294	c=0;
		2295	while( ! done ){ /* get next item until EOL*/
		2296	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2297	for( c = 0 ; c < 2; c++){
		2298	if(c == 0 ){
		2299	double_data[i] = get_real(infile,0);
		2300	i++;
		2301	}
		2302	else
		2303	{
		2304	double_data[i] = get_real(infile,1);
		2305	i++;
		2306	}
		2307	}
		2308	}
		2309	decimals = find_number_of_digits(precision);
		2310	/* double_xy2js_array(double xy[],int len,int decimals) /
		2311	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2312	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2313	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2314	add_to_buffer(tmp_buffer);
		2315	break;
		2316	case DEBUG:
		2317	/*
		2318	@ debug
		2319	@ keyword, no arguments
		2320	@ use as first command (before 'size')
		2321	@ will show a few buttons to read_canvas(); read_mathml(); and read_dragdrop();
		2322	@ only to be used in a single canvasdraw instance <br />or in case of multiple canvasdraw images , only the last image
		2323	*/
		2324	debug = 1;
		2325	fprintf(stdout,"\n\
		2326	<!-- THIS IS JUST FOR DEBUGGING ANSWER TYPES IN A SINGLE CANVASDRAW INSTANCE -->\n\
		2327	<input type=\"button\" onclick=\"javascript:alert(read_canvas());\" value=\"read_canvas()\" />\n\
		2328	<input type=\"button\" onclick=\"javascript:alert(read_mathml());\" value=\"read_mathml()\" />\n\
		2329	<input type=\"button\" onclick=\"javascript:alert(read_dragdrop());\" value=\"read_dragdrop()\" />\n");
		2330	done = TRUE;
		2331
		2332	case REPLYFORMAT:
		2333	/*
		2334	@ replyformat number
		2335	@ default values should be fine !
		2336	@ use command "debug" to check return values of javascript function read_canvas();
		2337	@ 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>
		2338	@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
		2339	*/
		2340	reply_format = (int) get_real(infile,1);
		2341	break;
		2342	case LEGENDCOLORS:
		2343	/*
		2344	@ legendcolors color1:color2:color3:...:color_n
		2345	@ will be used to colour a legend
		2346	@ make sure the number of colours match the number of legend items
		2347	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
		2348	*/
		2349	temp = get_string(infile,1);
		2350	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2351	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2352	break;
		2353	case LEGEND:
		2354	/*
		2355	@ legend string1:string2:string3....string_n
		2356	@ will be used to create a legend for a graph
		2357	@ also see command 'piechart'
		2358	*/
		2359	temp = get_string(infile,1);
		2360	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2361	fprintf(js_include_file,"var legend%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2362	break;
		2363	case XLABEL:
		2364	/*
		2365	@ xlabel some_string
		2366	@ will be used to create a label for the x-axis (label is in quadrant I)
		2367	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2368	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2369	*/
		2370	temp = get_string(infile,1);
7653	schaersvoo	2371	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7614	schaersvoo	2372	break;
		2373	case YLABEL:
		2374	/*
		2375	@ ylabel some_string
		2376	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
		2377	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2378	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2379	*/
		2380	temp = get_string(infile,1);
7653	schaersvoo	2381	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	2382	break;
		2383	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		2384	/*
		2385	@ linegraph x1:y1;x2:y2...x_n:y;2
		2386	@ will plot your data in a graph
		2387	@ may only to be used together with command 'grid'
		2388	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2389	@ use command 'legend' to provide an optional legend in right-top-corner
		2390	@ also see command 'piechart'
		2391	@ multiple linegraphs may be used in a single plot
		2392	@ <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>
		2393	*/
		2394	temp = get_string(infile,1);
		2395	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2396	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	2397	linegraph_cnt++;
		2398	reset();
		2399	break;
		2400	case CLOCK:
		2401	/*
		2402	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
		2403	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		2404	@ 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
		2405	@ 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>
		2406	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		2407	@ no combinations with other reply_types allowed, for now
		2408	@ 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
		2409	*/
		2410	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		2411
		2412	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		2413	for(i=0;i<9;i++){
		2414	switch(i){
		2415	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		2416	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		2417	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		2418	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		2419	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		2420	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
		2421	case 6:
		2422	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 */
		2423	case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
		2424	switch(int_data[7]){
		2425	default:break;
		2426	case 1 :if(clock_cnt == 0){
		2427	if( reply_format == 0 ){
		2428	reply_format = 18; /* user sets clock */
		2429	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");
		2430	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2431	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");
		2432	add_to_buffer(tmp_buffer);
		2433	}
		2434	else
		2435	{
		2436	canvas_error("interactive clock may not be used together with other reply_types...");
		2437	}
		2438	}
		2439	if(debug == 1 ){
		2440	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);
		2441	}
		2442	break;
		2443	case 2 :if( reply_format == 0 ){
		2444	reply_format = 19; /* "onclick */
		2445	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 ");
		2446	}
		2447	else
		2448	{
		2449	if( reply_format != 19){
		2450	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		2451	}
		2452	}
		2453	break;
		2454	}
		2455	break;
		2456	case 8:
		2457	temp = get_string(infile,1);
		2458	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		2459	if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
		2460	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);
		2461	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2462	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);
		2463	add_to_buffer(tmp_buffer);
		2464	clock_cnt++;
		2465	break;
		2466	default:break;
		2467	}
		2468	}
		2469	break;
		2470	case BARCHART:
		2471	/*
		2472	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		2473	@ will be used to create a legend for bar graph
		2474	@ may only to be used together with command 'grid'
		2475	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2476	@ use command 'legend' to provide an optional legend in right-top-corner
		2477	@ also see command 'piechart'
		2478	*/
		2479	temp = get_string(infile,1);
		2480	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2481	fprintf(js_include_file,"var barchart%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2482	reset();
		2483	break;
		2484	case PIECHART:
		2485	/*
		2486	@ piechart xc,yc,radius,'data+colorlist'
		2487	@ (xc : yc) center of circle diagram in xrange/yrange
		2488	@ radius in pixels
		2489	@ 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
		2490	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		2491	@ the number of colors must match the number of data.
		2492	@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
		2493	@ 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...
		2494	*/
		2495	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
		2496	for(i=0;i<5;i++){
		2497	switch(i){
		2498	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2499	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2500	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		2501	case 3: temp = get_string(infile,1);
		2502	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
		2503	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);
		2504	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2505	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);
		2506	add_to_buffer(tmp_buffer);
		2507	break;
		2508	default:break;
		2509	}
		2510	}
		2511	reset();
		2512	break;
		2513	case STATUS:
		2514	fprintf(js_include_file,"\nstatus=\"waiting\";\n");
		2515	break;
7735	schaersvoo	2516	case XLOGBASE:
7729	schaersvoo	2517	/*
7735	schaersvoo	2518	@ xlogbase number
		2519	@ sets the logbase number for the x-axis
7729	schaersvoo	2520	@ default value 10
7735	schaersvoo	2521	@ use together with commands xlogscale / xylogscale
7729	schaersvoo	2522	*/
7735	schaersvoo	2523	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7729	schaersvoo	2524	break;
7735	schaersvoo	2525	case YLOGBASE:
		2526	/*
		2527	@ ylogbase number
		2528	@ sets the logbase number for the y-axis
		2529	@ default value 10
		2530	@ use together with commands ylogscale / xylogscale
		2531	*/
		2532	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		2533	break;
7614	schaersvoo	2534	case XLOGSCALE:
		2535	/*
7735	schaersvoo	2536	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		2537	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2538	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		2539	@ the linewidth is set using command 'linewidth int'
		2540	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2541	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
7739	schaersvoo	2542	@ 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	2543	@ note: the complete canvas will be used for the 'log paper'
		2544	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2545	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2546	@ 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')
		2547	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2548	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	2549	*/
7735	schaersvoo	2550	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2551	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		2552	for(i=0;i<4;i++){
		2553	switch(i){
		2554	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2555	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2556	case 2: stroke_color = get_color(infile,0); break;
		2557	case 3: fill_color = get_color(infile,1);
7739	schaersvoo	2558	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	2559	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2560	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	2561	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		2562	add_to_buffer(tmp_buffer);
		2563	break;
		2564	default:break;
		2565	}
		2566	}
7614	schaersvoo	2567	break;
		2568	case YLOGSCALE:
7729	schaersvoo	2569	/*
		2570	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		2571	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2572	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		2573	@ the linewidth is set using command 'linewidth int'
		2574	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	2575	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
7739	schaersvoo	2576	@ 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	2577	@ note: the complete canvas will be used for the 'log paper'
		2578	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2579	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2580	@ 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	2581	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2582	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	2583	*/
		2584	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2585	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		2586	for(i=0;i<4;i++){
		2587	switch(i){
		2588	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2589	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2590	case 2: stroke_color = get_color(infile,0); break;
		2591	case 3: fill_color = get_color(infile,1);
7739	schaersvoo	2592	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	2593	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2594	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	2595	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	2596	add_to_buffer(tmp_buffer);
		2597	break;
		2598	default:break;
		2599	}
		2600	}
7614	schaersvoo	2601	break;
		2602	case XYLOGSCALE:
7735	schaersvoo	2603	/*
		2604	@ xylogscale majorcolor,minorcolor
		2605	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2606	@ the linewidth is set using command 'linewidth int'
		2607	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2608	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
7739	schaersvoo	2609	@ 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	2610	@ note: the complete canvas will be used for the 'log paper'
		2611	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2612	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2613	@ 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')
		2614	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2615	@ attention: keyword 'snaptogrid' may not lead to the desired result...
		2616	*/
		2617	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2618	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		2619	for(i=0;i<2;i++){
		2620	switch(i){
		2621	case 0: stroke_color = get_color(infile,0); break;
		2622	case 1: fill_color = get_color(infile,1);
7739	schaersvoo	2623	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	2624	tmp_buffer = my_newmem(string_length+1);
7739	schaersvoo	2625	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	2626	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		2627	add_to_buffer(tmp_buffer);
		2628	break;
		2629	default:break;
		2630	}
		2631	}
		2632	break;
7614	schaersvoo	2633	default:sync_input(infile);
		2634	break;
		2635	}
		2636	}
		2637	/* we are done parsing script file */
		2638
		2639	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects ! */
		2640	add_javascript_functions(js_function,canvas_root_id);
		2641	/* add read_canvas() etc functions if needed */
		2642	if( reply_format > 0 ){ add_read_canvas(reply_format);}
		2643	/* using mouse coordinate display ? */
		2644	if( use_mouse_coordinates == TRUE ){
		2645	tmp_buffer = my_newmem(26);
		2646	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2647	}
		2648	/* add global variables / contants */
7729	schaersvoo	2649	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
		2650	var precision = %d;var xmin=%f;var xmax=%f;var ymin=%f;\
		2651	var ymax=%f;var xmin_start=xmin;var xmax_start=xmax;\
		2652	var ymin_start=ymin;var ymax_start=xmax;\
		2653	var zoom_x_increment=0;var zoom_y_increment=0;\
		2654	var pan_x_increment=0;var pan_y_increment=0;\
		2655	if(use_ylogscale == 0 ){\
		2656	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (xmax - xmin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
		2657	}else{\
		2658	zoom_x_increment = (xmax - xmin)/20;\
		2659	pan_x_increment = (xmax - xmin)/20;\
		2660	};\
7653	schaersvoo	2661	function start_canvas%d(type){\
		2662	switch(type){\
7729	schaersvoo	2663	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		2664	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	2665	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		2666	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		2667	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		2668	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
		2669	case 6:location.reload();break;\
		2670	default:break;\
		2671	};\
		2672	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		2673	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
		2674	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
		2675	%s\
		2676	};\
		2677	start_canvas%d(22);\
7614	schaersvoo	2678	};\n\
		2679	<!-- end wims_canvas_function -->\n\
7729	schaersvoo	2680	wims_canvas_function%d();\n",precision,xmin,xmax,ymin,ymax,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
7614	schaersvoo	2681	/* done writing the javascript include file */
		2682	fclose(js_include_file);
		2683
		2684	}
		2685
		2686	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
		2687	if(use_tooltip == TRUE){
		2688	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		2689	}
		2690	exit(EXIT_SUCCESS);
		2691	}
		2692	/* end main() */
		2693
		2694	/******************************************************************************
		2695	**
		2696	** sync_input
		2697	**
		2698	** synchronises input line - reads to end of line, leaving file pointer
		2699	** at first character of next line.
		2700	**
		2701	** Used by:
		2702	** main program - error handling.
		2703	**
		2704	******************************************************************************/
		2705	void sync_input(FILE *infile)
		2706	{
		2707	int c = 0;
		2708
7658	schaersvoo	2709	if( c == '\n' \|\| c == ';' ) return;
		2710	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	2711	if( c == EOF ) finished = 1;
7658	schaersvoo	2712	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	2713	return;
		2714	}
		2715
		2716	/******************************************************************************/
		2717
		2718	char str_replace(const char str, const char old, const char new){
		2719	/* http://creativeandcritical.net/str-replace-c/ */
		2720	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		2721	char ret, r;
		2722	const char p, q;
		2723	size_t oldlen = strlen(old);
		2724	size_t count = 0;
		2725	size_t retlen = 0;
		2726	size_t newlen = strlen(new);
		2727	if (oldlen != newlen){
		2728	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		2729	count++;
		2730	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		2731	}
		2732	}
		2733	else
		2734	{
		2735	retlen = strlen(str);
		2736	}
		2737
		2738	if ((ret = malloc(retlen + 1)) == NULL){
		2739	ret = NULL;
		2740	canvas_error("string argument is NULL");
		2741	}
		2742	else
		2743	{
		2744	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		2745	size_t l = q - p;
		2746	memcpy(r, p, l);
		2747	r += l;
		2748	memcpy(r, new, newlen);
		2749	r += newlen;
		2750	}
		2751	strcpy(r, p);
		2752	}
		2753	return ret;
		2754	}
		2755
		2756	/******************************************************************************/
		2757	/*
		2758	avoid the use of ctypes.h for tolower() toupper();
		2759	it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
		2760	Upper case -> Lower case : c = c - 'A'+ 'a';
		2761	Lower case -> Upper case c = c + 'A' - 'a';
		2762	*/
		2763	int tolower(int c){
		2764	if(c <= 'Z'){
		2765	if (c >= 'A'){
		2766	return c - 'A' + 'a';
		2767	}
		2768	}
		2769	return c;
		2770	}
		2771
		2772	int toupper(int c){
		2773	if(c >= 'a' && c <= 'z'){
		2774	return c + 'A' - 'a';
		2775	}
		2776	return c;
		2777	}
		2778
		2779	char get_color(FILE infile , int last){
		2780	int c,i = 0,is_hex = 0;
		2781	char temp[MAX_COLOR_STRING], *string;
7748	schaersvoo	2782	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
7614	schaersvoo	2783	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		2784	if( c == '#' ){
		2785	is_hex = 1;
		2786	}
		2787	if( c != ' '){
		2788	temp[i]=tolower(c);
		2789	i++;
		2790	}
		2791	}
7658	schaersvoo	2792	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	2793	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	2794	if( c == EOF ){finished = 1;}
		2795	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2796	temp[i]='\0';
		2797	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		2798	if( is_hex == 1 ){
		2799	char red[3], green[3], blue[3];
		2800	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		2801	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		2802	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		2803	int r = (int) strtol(red, NULL, 16);
		2804	int g = (int) strtol(green, NULL, 16);
		2805	int b = (int) strtol(blue, NULL, 16);
		2806	string = (char *)my_newmem(12);
		2807	snprintf(string,11,"%d,%d,%d",r,g,b);
		2808	return string;
		2809	}
		2810	else
		2811	{
		2812	string = (char *)my_newmem(sizeof(temp));
		2813	snprintf(string,sizeof(temp),"%s",temp);
		2814	for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
		2815	if( strcmp( colors[i].name , string ) == 0 ){
		2816	return colors[i].rgb;
		2817	}
		2818	}
		2819	}
		2820	/* not found...return error */
		2821	free(string);string = NULL;
		2822	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
		2823	return NULL;
		2824	}
		2825
		2826	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2827	int c,i=0;
		2828	char temp[MAX_BUFFER], *string;
7748	schaersvoo	2829	while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
7614	schaersvoo	2830	temp[i]=c;
		2831	i++;
		2832	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		2833	}
7748	schaersvoo	2834	if( ( c == '\n' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
		2835	if( c == '\n') { done = TRUE; line_number++; }
7614	schaersvoo	2836	if( c == EOF ) {
		2837	finished = 1;
		2838	if( last != 1 ){ canvas_error("expected more arguments");}
		2839	}
		2840	temp[i]='\0';
		2841	if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
		2842	string=(char *)my_newmem(strlen(temp));
		2843	snprintf(string,sizeof(temp),"%s",temp);
		2844	return string;
		2845	}
		2846
		2847	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2848	int c,i=0;
		2849	char temp[MAX_BUFFER], *string;
7748	schaersvoo	2850	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
7614	schaersvoo	2851	temp[i]=c;
		2852	i++;
		2853	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		2854	}
7748	schaersvoo	2855	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
		2856	if( c == '\n') { line_number++; }
7614	schaersvoo	2857	if( c == EOF ) {finished = 1;}
		2858	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2859	temp[i]='\0';
		2860	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
		2861	string=(char *)my_newmem(sizeof(temp));
		2862	snprintf(string,sizeof(temp),"%s",temp);
		2863	done = TRUE;
		2864	return string;
		2865	}
		2866
		2867	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		2868	int c,i=0,found_calc = 0;
		2869	double y;
		2870	char tmp[MAX_INT];
7658	schaersvoo	2871	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	2872	if( c != ' ' ){
		2873	/*
		2874	libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
		2875	We will check after assert() if it's a NULL pointer...and exit program via :
		2876	canvas_error("I'm having trouble parsing your \"expression\" ");
		2877	*/
		2878	if( i == 0 && c == '+' ){
		2879	continue;
		2880	}
		2881	else
		2882	{
		2883	if(canvas_iscalculation(c) != 0){
		2884	found_calc = 1;
		2885	c = tolower(c);
		2886	}
		2887	tmp[i] = c;
		2888	i++;
		2889	}
		2890	}
		2891	if( i > MAX_INT - 1){canvas_error("number too large");}
		2892	}
7658	schaersvoo	2893	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		2894	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	2895	if( c == EOF ){done = TRUE ; finished = 1;}
		2896	tmp[i]='\0';
		2897	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
		2898	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
		2899	void *f = evaluator_create(tmp);
		2900	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
		2901	y = evaluator_evaluate_x(f, 1);
		2902	/* if function is bogus; y = 1 : so no core dumps */
		2903	evaluator_destroy(f);
		2904	}
		2905	else
		2906	{
		2907	y = atof(tmp);
		2908	}
		2909	return y;
		2910	}
		2911
		2912	double get_double(FILE infile , int orientation , int last){ / last = 0 : more arguments ; last=1 final argument */
		2913	/* orientation=0 : x-values ... orientation=1 :y-values */
		2914	int c;
		2915	int i = 0;
		2916	int found_calc = 0; /* signal user input like : 2pi/3 /
		2917	char tmp[MAX_INT];
		2918	double dx;
7658	schaersvoo	2919	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	2920	if( c != ' '){/* no spaces in numbers */
		2921	if(canvas_iscalculation(c) != 0 ){
7658	schaersvoo	2922	found_calc = 1;
		2923	c = tolower(c);
7614	schaersvoo	2924	}
		2925	tmp[i]=c;
		2926	i++;
		2927	if( i > MAX_INT-1){canvas_error("number too large");}
		2928	}
		2929	}
7658	schaersvoo	2930	if( c == '\n' \|\| c == EOF \|\| c == ';' ){
7614	schaersvoo	2931	if( last == 0 ){canvas_error("expecting more arguments");}
		2932	if( c == EOF ){finished = TRUE;}
		2933	done = TRUE;
		2934	/return 0; /
		2935	}
		2936	tmp[i]='\0';
		2937
		2938	if( strlen(tmp) == 0 \|\| i == 0){
		2939	if( orientation == 0 ){
		2940	canvas_error("expected a x-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
		2941	}
		2942	else
		2943	{
		2944	canvas_error("expected a y-value \n e.g. a number in x-range / y-range coordinate system\nbut found nothing !!");
		2945	}
		2946	}
		2947	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
		2948	void *f = evaluator_create(tmp);
		2949	assert(f);
		2950	if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ");}
		2951	dx = evaluator_evaluate_x(f, 1);
		2952	evaluator_destroy(f);
		2953	}
		2954	else
		2955	{
		2956	dx = atof(tmp); /* no pi/e/sin(2pi/3) found : will use atof to convert inputstring to float /
		2957	}
7658	schaersvoo	2958	if( c == '\n' \|\| c == ';') { line_number++; }
7614	schaersvoo	2959	if( c != EOF ) {
7658	schaersvoo	2960	if( c == '\n' \|\| c ==';') {
7614	schaersvoo	2961	done = TRUE;
		2962	}
		2963	}
		2964	else
		2965	{
		2966	finished = TRUE;
		2967	}
		2968	if( (done == TRUE \|\| finished == TRUE) && last != 1 ){ canvas_error("expected more arguments");}
		2969	if(orientation == 0){
		2970	return x2px( dx ); /* convert to pixels according xrange */
		2971	}
		2972	else
		2973	{
		2974	return y2px( dx );/* convert to pixels according yrange */
		2975	}
		2976	}
		2977	void canvas_error(char *msg){
7748	schaersvoo	2978	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
7614	schaersvoo	2979	finished = 1;
		2980	exit(EXIT_SUCCESS);
		2981	}
		2982
		2983
		2984	/* convert x/y coordinates to pixel */
		2985	int x2px(double x){
		2986	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		2987	}
		2988
		2989	int y2px(double y){
		2990	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		2991	}
		2992
		2993	double px2x(int x){
		2994	return (x*(xmax - xmin)/xsize + xmin);
		2995	}
		2996	double px2y(int y){
		2997	return (y*(ymax - ymin)/ysize + ymin);
		2998	}
		2999
		3000	void add_to_buffer(char *tmp){
		3001	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		3002	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		3003	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		3004	if( space_left > strlen(tmp)){
		3005	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		3006	}
		3007	else
		3008	{
		3009	canvas_error("buffer is too big\n");
		3010	}
		3011	tmp = NULL;free(tmp);
		3012	return;
		3013	}
		3014
		3015	void reset(){
		3016	if(use_filled == TRUE){use_filled = FALSE;}
		3017	if(use_dashed == TRUE){use_dashed = FALSE;}
		3018	if(use_translate == TRUE){use_translate = FALSE;}
		3019	if(use_rotate == TRUE){use_rotate = FALSE;}
		3020	onclick = 0;
		3021	}
		3022
		3023
		3024
		3025	/* What reply format in read_canvas();
		3026
		3027	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		3028	1 = x1,x2,x3,x4....x_n
		3029	y1,y2,y3,y4....y_n
		3030
		3031	x/y in pixels
		3032
		3033	2 = x1,x2,x3,x4....x_n
		3034	y1,y2,y3,y4....y_n
		3035	x/y in xrange / yrange coordinate system
		3036
		3037	3 = x1,x2,x3,x4....x_n
		3038	y1,y2,y3,y4....y_n
		3039	r1,r2,r3,r4....r_n
		3040
		3041	x/y in pixels
		3042	r in pixels
		3043
		3044	4 = x1,x2,x3,x4....x_n
		3045	y1,y2,y3,y4....y_n
		3046	r1,r2,r3,r4....r_n
		3047
		3048	x/y in xrange / yrange coordinate system
		3049	r in pixels
		3050
		3051	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3052	Ay1,Ay2,Ay3,Ay4....Ay_n
		3053	Bx1,Bx2,Bx3,Bx4....Bx_n
		3054	By1,By2,By3,By4....By_n
		3055	Cx1,Cx2,Cx3,Cx4....Cx_n
		3056	Cy1,Cy2,Cy3,Cy4....Cy_n
		3057	....
		3058	Zx1,Zx2,Zx3,Zx4....Zx_n
		3059	Zy1,Zy2,Zy3,Zy4....Zy_n
		3060
		3061	x/y in pixels
		3062
		3063	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3064	Ay1,Ay2,Ay3,Ay4....Ay_n
		3065	Bx1,Bx2,Bx3,Bx4....Bx_n
		3066	By1,By2,By3,By4....By_n
		3067	Cx1,Cx2,Cx3,Cx4....Cx_n
		3068	Cy1,Cy2,Cy3,Cy4....Cy_n
		3069	....
		3070	Zx1,Zx2,Zx3,Zx4....Zx_n
		3071	Zy1,Zy2,Zy3,Zy4....Zy_n
		3072
		3073	x/y in xrange / yrange coordinate system
		3074
		3075	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3076
		3077	x/y in pixels
		3078
		3079	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3080
		3081	x/y in xrange / yrange coordinate system
		3082
		3083	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3084
		3085	x/y in pixels
		3086
		3087	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3088
		3089	x/y in xrange / yrange coordinate system
		3090
		3091	11 = Ax1,Ay1,Ax2,Ay2
		3092	Bx1,By1,Bx2,By2
		3093	Cx1,Cy1,Cx2,Cy2
		3094	Dx1,Dy1,Dx2,Dy2
		3095	......
		3096	Zx1,Zy1,Zx2,Zy2
		3097
		3098	x/y in xrange / yrange coordinate system
		3099
		3100	12 = Ax1,Ay1,Ax2,Ay2
		3101	Bx1,By1,Bx2,By2
		3102	Cx1,Cy1,Cx2,Cy2
		3103	Dx1,Dy1,Dx2,Dy2
		3104	......
		3105	Zx1,Zy1,Zx2,Zy2
		3106
		3107	x/y in pixels
		3108
		3109	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		3110
		3111	x/y in xrange / yrange coordinate system
		3112	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		3113	x/y in pixels
		3114	15 = reply from inputfields,textareas
		3115	reply1,reply2,reply3,...,reply_n
		3116
		3117	16 = read mathml inputfields only
		3118
		3119	17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
		3120	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		3121
		3122	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		3123	19 = return clicked object number (analogue to shape-library onclick)
		3124	20 = return x/y-data in x-range/y-range of all 'draggable' images
		3125	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		3126	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		3127	x/y in xrange / yrange coordinate system
		3128
		3129	*/
		3130
		3131
		3132	void add_read_canvas(int type_reply){
		3133	/* just 1 reply type allowed */
		3134	switch(type_reply){
		3135	/* TO DO
		3136	!!!! NEED TO SIMPLIFY !!!!
		3137	answers may have:
		3138	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		3139	*/
		3140	case 1: fprintf(js_include_file,"\
7653	schaersvoo	3141	\n<!-- begin function 1 read_canvas() -->\n\
7614	schaersvoo	3142	function read_canvas(){\
		3143	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3144	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3145	var p = 0;var input_reply = new Array();\
		3146	if( document.getElementById(\"canvas_input0\")){\
		3147	var t = 0;\
		3148	while(document.getElementById(\"canvas_input\"+t)){\
		3149	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3150	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3151	p++;\
		3152	};\
		3153	t++;\
		3154	};\
		3155	};\
		3156	if( typeof userdraw_text != 'undefined' ){\
		3157	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		3158	}\
		3159	else\
		3160	{\
		3161	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		3162	}\
		3163	}\
		3164	else\
		3165	{\
		3166	if( typeof userdraw_text != 'undefined' ){\
		3167	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		3168	}\
		3169	else\
		3170	{\
		3171	return userdraw_x+\"\\n\"+userdraw_y;\
		3172	}\
		3173	};\
		3174	};\
		3175	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3176	<!-- end function 1 read_canvas() -->");
7614	schaersvoo	3177	break;
		3178	case 2: fprintf(js_include_file,"\
7653	schaersvoo	3179	\n<!-- begin function 2 read_canvas() -->\n\
7614	schaersvoo	3180	function read_canvas(){\
		3181	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3182	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3183	while(userdraw_x[p]){\
		3184	reply_x[p] = px2x(userdraw_x[p]);\
		3185	reply_y[p] = px2y(userdraw_y[p]);\
		3186	p++;\
		3187	};\
		3188	if(p == 0){alert(\"nothing drawn...\");return;};\
		3189	if( document.getElementById(\"canvas_input0\")){\
		3190	var p = 0;var input_reply = new Array();\
		3191	if( document.getElementById(\"canvas_input0\")){\
		3192	var t = 0;\
		3193	while(document.getElementById(\"canvas_input\"+t)){\
		3194	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3195	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3196	p++;\
		3197	};\
		3198	t++;\
		3199	};\
		3200	};\
		3201	if( typeof userdraw_text != 'undefined' ){\
		3202	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3203	}\
		3204	else\
		3205	{\
		3206	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		3207	}\
		3208	}\
		3209	else\
		3210	{\
		3211	if( typeof userdraw_text != 'undefined' ){\
		3212	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		3213	}\
		3214	else\
		3215	{\
		3216	return reply_x+\"\\n\"+reply_y;\
		3217	};\
		3218	};\
		3219	};\
		3220	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3221	<!-- end function 2 read_canvas() -->");
7614	schaersvoo	3222	break;
		3223	case 3: fprintf(js_include_file,"\
7653	schaersvoo	3224	\n<!-- begin function 3 read_canvas() -->\n\
7614	schaersvoo	3225	function read_canvas(){\
		3226	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3227	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3228	var p = 0;var input_reply = new Array();\
		3229	if( document.getElementById(\"canvas_input0\")){\
		3230	var t = 0;\
		3231	while(document.getElementById(\"canvas_input\"+t)){\
		3232	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3233	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3234	p++;\
		3235	};\
		3236	t++;\
		3237	};\
		3238	};\
		3239	if( typeof userdraw_text != 'undefined' ){\
		3240	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3241	}\
		3242	else\
		3243	{\
		3244	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3245	}\
		3246	}\
		3247	else\
		3248	{\
		3249	if( typeof userdraw_text != 'undefined' ){\
		3250	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		3251	}\
		3252	else\
		3253	{\
		3254	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		3255	}\
		3256	}\
		3257	};\
		3258	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3259	<!-- end function 3 read_canvas() -->");
7614	schaersvoo	3260	break;
		3261	case 4: fprintf(js_include_file,"\
7653	schaersvoo	3262	\n<!-- begin function 4 read_canvas() -->\n\
7614	schaersvoo	3263	function read_canvas(){\
		3264	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3265	while(userdraw_x[p]){\
		3266	reply_x[p] = px2x(userdraw_x[p]);\
		3267	reply_y[p] = px2y(userdraw_y[p]);\
		3268	p++;\
		3269	};\
		3270	if(p == 0){alert(\"nothing drawn...\");return;};\
		3271	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3272	var p = 0;var input_reply = new Array();\
		3273	if( document.getElementById(\"canvas_input0\")){\
		3274	var t = 0;\
		3275	while(document.getElementById(\"canvas_input\"+t)){\
		3276	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3277	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3278	p++;\
		3279	};\
		3280	t++;\
		3281	};\
		3282	};\
		3283	if( typeof userdraw_text != 'undefined' ){\
		3284	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3285	}\
		3286	else\
		3287	{\
		3288	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3289	}\
		3290	}\
		3291	else\
		3292	{\
		3293	if( typeof userdraw_text != 'undefined' ){\
		3294	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		3295	}\
		3296	else\
		3297	{\
		3298	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		3299	}\
		3300	};\
		3301	};\
		3302	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3303	<!-- end function 4 read_canvas() -->");
7614	schaersvoo	3304	break;
		3305	/*
		3306	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3307	used for userdraw multiple paths
		3308	*/
		3309	case 5: fprintf(js_include_file,"\
7653	schaersvoo	3310	\n<!-- begin function 5 read_canvas() -->\n\
7614	schaersvoo	3311	function read_canvas(){\
		3312	var p = 0;\
		3313	var reply = \"\";\
		3314	for(p = 0; p < userdraw_x.length;p++){\
		3315	if(userdraw_x[p] != null ){\
		3316	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		3317	};\
		3318	};\
		3319	if(p == 0){alert(\"nothing drawn...\");return;};\
		3320	userdraw_x = [];userdraw_y = [];\
		3321	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3322	var p = 0;var input_reply = new Array();\
		3323	if( document.getElementById(\"canvas_input0\")){\
		3324	var t = 0;\
		3325	while(document.getElementById(\"canvas_input\"+t)){\
		3326	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3327	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3328	p++;\
		3329	};\
		3330	t++;\
		3331	};\
		3332	};\
		3333	if( typeof userdraw_text != 'undefined' ){\
		3334	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3335	}\
		3336	else\
		3337	{\
		3338	return reply +\"\\n\"+input_reply;\
		3339	}\
		3340	}\
		3341	else\
		3342	{\
		3343	if( typeof userdraw_text != 'undefined' ){\
		3344	return reply+\"\\n\"+userdraw_text;\
		3345	}\
		3346	else\
		3347	{\
		3348	return reply;\
		3349	}\
		3350	};\
		3351	};\
7654	schaersvoo	3352	this.read_canvas = rdad_canvas;\n\
7653	schaersvoo	3353	<!-- end function 5 read_canvas() -->");
7614	schaersvoo	3354	break;
		3355	/*
		3356	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3357	used for userdraw multiple paths
		3358	*/
		3359	case 6: fprintf(js_include_file,"\
7653	schaersvoo	3360	\n<!-- begin function 6 read_canvas() -->\n\
7614	schaersvoo	3361	function read_canvas(){\
		3362	var p = 0;\
		3363	var reply = \"\";\
		3364	var tmp_x = new Array();\
		3365	var tmp_y = new Array();\
		3366	for(p = 0 ; p < userdraw_x.length; p++){\
		3367	tmp_x = userdraw_x[p];\
		3368	tmp_y = userdraw_y[p];\
		3369	if(tmp_x != null){\
		3370	for(var i = 0 ; i < tmp_x.length ; i++){\
		3371	tmp_x[i] = px2x(tmp_x[i]);\
		3372	tmp_y[i] = px2y(tmp_y[i]);\
		3373	};\
		3374	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		3375	};\
		3376	};\
		3377	if(p == 0){alert(\"nothing drawn...\");return;};\
		3378	userdraw_x = [];userdraw_y = [];\
		3379	if( document.getElementById(\"canvas_input0\") ){\
		3380	var p = 0;var input_reply = new Array();\
		3381	if( document.getElementById(\"canvas_input0\")){\
		3382	var t = 0;\
		3383	while(document.getElementById(\"canvas_input\"+t)){\
		3384	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3385	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3386	p++;\
		3387	};\
		3388	t++;\
		3389	};\
		3390	};\
		3391	if( typeof userdraw_text != 'undefined' ){\
		3392	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3393	}\
		3394	else\
		3395	{\
		3396	return reply +\"\\n\"+input_reply;\
		3397	}\
		3398	}\
		3399	else\
		3400	{\
		3401	if( typeof userdraw_text != 'undefined' ){\
		3402	return reply +\"\\n\"+userdraw_text;\
		3403	}\
		3404	else\
		3405	{\
		3406	return reply;\
		3407	}\
		3408	};\
		3409	};\
		3410	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3411	<!-- end function 6 read_canvas() -->");
7614	schaersvoo	3412	break;
		3413	case 7: fprintf(js_include_file,"\
7653	schaersvoo	3414	\n<!-- begin function 7 read_canvas() -->\n\
7614	schaersvoo	3415	function read_canvas(){\
		3416	var reply = new Array();\
		3417	var p = 0;\
		3418	while(userdraw_x[p]){\
		3419	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		3420	p++;\
		3421	};\
		3422	if(p == 0){alert(\"nothing drawn...\");return;};\
		3423	if( document.getElementById(\"canvas_input0\") ){\
		3424	var p = 0;var input_reply = new Array();\
		3425	if( document.getElementById(\"canvas_input0\")){\
		3426	var t = 0;\
		3427	while(document.getElementById(\"canvas_input\"+t)){\
		3428	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3429	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3430	p++;\
		3431	};\
		3432	t++;\
		3433	};\
		3434	};\
		3435	if( typeof userdraw_text != 'undefined' ){\
		3436	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3437	}\
		3438	else\
		3439	{\
		3440	return reply+\"\\n\"+input_reply;\
		3441	}\
		3442	};\
		3443	else\
		3444	{\
		3445	if( typeof userdraw_text != 'undefined' ){\
		3446	return reply+\"\\n\"+userdraw_text;\
		3447	}\
		3448	else\
		3449	{\
		3450	return reply;\
		3451	}\
		3452	};\
		3453	};\
		3454	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3455	<!-- end function 7 read_canvas() -->");
7614	schaersvoo	3456	break;
		3457	case 8: fprintf(js_include_file,"\
7653	schaersvoo	3458	\n<!-- begin function 8 read_canvas() -->\n\
7614	schaersvoo	3459	function read_canvas(){\
		3460	var reply = new Array();\
		3461	var p = 0;\
		3462	while(userdraw_x[p]){\
		3463	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
		3464	p++;\
		3465	};\
		3466	if(p == 0){alert(\"nothing drawn...\");return;};\
		3467	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3468	var p = 0;var input_reply = new Array();\
		3469	if( document.getElementById(\"canvas_input0\")){\
		3470	var t = 0;\
		3471	while(document.getElementById(\"canvas_input\"+t)){\
		3472	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3473	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3474	p++;\
		3475	};\
		3476	t++;\
		3477	};\
		3478	};\
		3479	if( typeof userdraw_text != 'undefined' ){\
		3480	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3481	}\
		3482	else\
		3483	{\
		3484	return reply +\"\\n\"+input_reply;\
		3485	}\
		3486	}\
		3487	else\
		3488	{\
		3489	if( typeof userdraw_text != 'undefined' ){\
		3490	return reply +\"\\n\"+userdraw_text;\
		3491	}\
		3492	else\
		3493	{\
		3494	return reply;\
		3495	}\
		3496	};\
		3497	};\
		3498	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3499	<!-- end function 8 read_canvas() -->");
7614	schaersvoo	3500	break;
		3501	case 9: fprintf(js_include_file,"\
7653	schaersvoo	3502	\n<!-- begin function 9 read_canvas() -->\n\
7614	schaersvoo	3503	function read_canvas(){\
		3504	var reply = new Array();\
		3505	var p = 0;\
		3506	while(userdraw_x[p]){\
		3507	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		3508	p++;\
		3509	};\
		3510	if(p == 0){alert(\"nothing drawn...\");return;};\
		3511	if( document.getElementById(\"canvas_input0\") ){\
		3512	var p = 0;var input_reply = new Array();\
		3513	if( document.getElementById(\"canvas_input0\")){\
		3514	var t = 0;\
		3515	while(document.getElementById(\"canvas_input\"+t)){\
		3516	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3517	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3518	p++;\
		3519	};\
		3520	t++;\
		3521	};\
		3522	};\
		3523	if( typeof userdraw_text != 'undefined' ){\
		3524	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3525	}\
		3526	else\
		3527	{\
		3528	return reply +\"\\n\"+input_reply;\
		3529	}\
		3530	}\
		3531	else\
		3532	{\
		3533	if( typeof userdraw_text != 'undefined' ){\
		3534	return reply +\"\\n\"+userdraw_text;\
		3535	}\
		3536	else\
		3537	{\
		3538	return reply;\
		3539	}\
		3540	};\
		3541	};\
		3542	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3543	<!-- end function 9 read_canvas() -->");
7614	schaersvoo	3544	break;
		3545	case 10: fprintf(js_include_file,"\
7653	schaersvoo	3546	\n<!-- begin function 10 read_canvas() -->\n\
7614	schaersvoo	3547	function read_canvas(){\
		3548	var reply = new Array();\
		3549	var p = 0;\
		3550	while(userdraw_x[p]){\
		3551	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
		3552	p++;\
		3553	};\
		3554	if(p == 0){alert(\"nothing drawn...\");return;};\
		3555	if( document.getElementById(\"canvas_input0\") ){\
		3556	var p = 0;var input_reply = new Array();\
		3557	if( document.getElementById(\"canvas_input0\")){\
		3558	var t = 0;\
		3559	while(document.getElementById(\"canvas_input\"+t)){\
		3560	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3561	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3562	p++;\
		3563	};\
		3564	t++;\
		3565	};\
		3566	};\
		3567	if( typeof userdraw_text != 'undefined' ){\
		3568	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3569	}\
		3570	else\
		3571	{\
		3572	return reply +\"\\n\"+input_reply;\
		3573	}\
		3574	}\
		3575	else\
		3576	{\
		3577	if( typeof userdraw_text != 'undefined' ){\
		3578	return reply +\"\\n\"+userdraw_text;\
		3579	}\
		3580	else\
		3581	{\
		3582	return reply;\
		3583	}\
		3584	};\
		3585	};\
		3586	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3587	<!-- end function 10 read_canvas() -->");
7614	schaersvoo	3588	break;
		3589	case 11: fprintf(js_include_file,"\
7653	schaersvoo	3590	\n<!-- begin function 11 read_canvas() -->\n\
7614	schaersvoo	3591	function read_canvas(){\
		3592	var reply = \"\";\
		3593	var p = 0;\
		3594	while(userdraw_x[p]){\
		3595	reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
		3596	p = p+2;\
		3597	};\
		3598	if(p == 0){alert(\"nothing drawn...\");return;};\
		3599	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3600	var p = 0;var input_reply = new Array();\
		3601	if( document.getElementById(\"canvas_input0\")){\
		3602	var t = 0;\
		3603	while(document.getElementById(\"canvas_input\"+t)){\
		3604	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3605	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3606	p++;\
		3607	};\
		3608	t++;\
		3609	};\
		3610	};\
		3611	if( typeof userdraw_text != 'undefined' ){\
		3612	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3613	}\
		3614	else\
		3615	{\
		3616	return reply +\"\\n\"+input_reply;\
		3617	}\
		3618	}\
		3619	else\
		3620	{\
		3621	if( typeof userdraw_text != 'undefined' ){\
		3622	return reply +\"\\n\"+userdraw_text;\
		3623	}\
		3624	else\
		3625	{\
		3626	return reply;\
		3627	}\
		3628	};\
		3629	};\
		3630	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3631	<!-- end function 11 read_canvas() -->");
7614	schaersvoo	3632	break;
		3633	case 12: fprintf(js_include_file,"\
7653	schaersvoo	3634	\n<!-- begin function 12 read_canvas() -->\n\
7614	schaersvoo	3635	function read_canvas(){\
		3636	var reply = \"\";\
		3637	var p = 0;\
		3638	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		3639	if(userdraw_x[p] != null){\
		3640	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		3641	};\
		3642	};\
		3643	if(p == 0){alert(\"nothing drawn...\");return;};\
		3644	if( document.getElementById(\"canvas_input0\") ){\
		3645	var p = 0;var input_reply = new Array();\
		3646	if( document.getElementById(\"canvas_input0\")){\
		3647	var t = 0;\
		3648	while(document.getElementById(\"canvas_input\"+t)){\
		3649	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3650	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3651	p++;\
		3652	};\
		3653	t++;\
		3654	};\
		3655	};\
		3656	if( typeof userdraw_text != 'undefined' ){\
		3657	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3658	}\
		3659	else\
		3660	{\
		3661	return reply +\"\\n\"+input_reply;\
		3662	}\
		3663	}\
		3664	else\
		3665	{\
		3666	if( typeof userdraw_text != 'undefined' ){\
		3667	return reply +\"\\n\"+userdraw_text\
		3668	}\
		3669	else\
		3670	{\
		3671	return reply;\
		3672	}\
		3673	};\
		3674	};\
		3675	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3676	<!-- end function 12 read_canvas() -->");
7614	schaersvoo	3677	break;
		3678	case 13: fprintf(js_include_file,"\
7653	schaersvoo	3679	\n<!-- begin function 13 read_canvas() -->\n\
7614	schaersvoo	3680	function read_canvas(){\
		3681	var reply = new Array();\
		3682	var p = 0;var i = 0;\
		3683	while(userdraw_x[p]){\
		3684	reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
		3685	p = p+2;i++;\
		3686	};\
		3687	if(p == 0){alert(\"nothing drawn...\");return;};\
		3688	if( document.getElementById(\"canvas_input0\") ){\
		3689	var p = 0;var input_reply = new Array();\
		3690	if( document.getElementById(\"canvas_input0\")){\
		3691	var t = 0;\
		3692	while(document.getElementById(\"canvas_input\"+t)){\
		3693	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3694	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3695	p++;\
		3696	};\
		3697	t++;\
		3698	};\
		3699	};\
		3700	if( typeof userdraw_text != 'undefined' ){\
		3701	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3702	}\
		3703	else\
		3704	{\
		3705	return reply +\"\\n\"+input_reply;\
		3706	}\
		3707	}\
		3708	else\
		3709	{\
		3710	if( typeof userdraw_text != 'undefined' ){\
		3711	return reply +\"\\n\"+userdraw_text\
		3712	}\
		3713	else\
		3714	{\
		3715	return reply;\
		3716	}\
		3717	};\
		3718	};\
		3719	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3720	<!-- end function 13 read_canvas() -->");
7614	schaersvoo	3721	break;
		3722	case 14: fprintf(js_include_file,"\
7653	schaersvoo	3723	\n<!-- begin function 14 read_canvas() -->\n\
7614	schaersvoo	3724	function read_canvas(){\
		3725	var reply = new Array();\
		3726	var p = 0;var i = 0;\
		3727	while(userdraw_x[p]){\
		3728	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		3729	p = p+2;i++;\
		3730	};\
		3731	if(p == 0){alert(\"nothing drawn...\");return;};\
		3732	if( document.getElementById(\"canvas_input0\") ){\
		3733	var p = 0;var input_reply = new Array();\
		3734	if( document.getElementById(\"canvas_input0\")){\
		3735	var t = 0;\
		3736	while(document.getElementById(\"canvas_input\"+t)){\
		3737	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3738	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3739	p++;\
		3740	};\
		3741	t++;\
		3742	};\
		3743	};\
		3744	if( typeof userdraw_text != 'undefined' ){\
		3745	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3746	}\
		3747	else\
		3748	{\
		3749	return reply +\"\\n\"+input_reply;\
		3750	}\
		3751	}\
		3752	else\
		3753	{\
		3754	if( typeof userdraw_text != 'undefined' ){\
		3755	return reply +\"\\n\"+userdraw_text;\
		3756	}\
		3757	else\
		3758	{\
		3759	return reply;\
		3760	}\
		3761	};\
		3762	};\
		3763	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3764	<!-- end function 14 read_canvas() -->");
7614	schaersvoo	3765	break;
		3766	case 15: fprintf(js_include_file,"\
7653	schaersvoo	3767	\n<!-- begin function 15 read_canvas() -->\n\
7614	schaersvoo	3768	function read_canvas(){\
		3769	var input_reply = new Array();\
		3770	var p = 0;\
		3771	if( document.getElementById(\"canvas_input0\")){\
		3772	var t = 0;\
		3773	while(document.getElementById(\"canvas_input\"+t)){\
		3774	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3775	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3776	p++;\
		3777	};\
		3778	t++;\
		3779	};\
		3780	};\
		3781	if( typeof userdraw_text != 'undefined' ){\
		3782	return input_reply +\"\\n\"+userdraw_text;\
		3783	}\
		3784	else\
		3785	{\
		3786	return input_reply;\
		3787	};\
		3788	};\
		3789	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3790	<!-- end function 15 read_canvas() -->");
7614	schaersvoo	3791	break;
		3792	case 16: fprintf(js_include_file,"\
7653	schaersvoo	3793	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	3794	function read_mathml(){\
		3795	var reply = new Array();\
		3796	var p = 0;\
		3797	if( document.getElementById(\"mathml0\")){\
		3798	while(document.getElementById(\"mathml\"+p)){\
		3799	reply[p] = document.getElementById(\"mathml\"+p).value;\
		3800	p++;\
		3801	};\
		3802	};\
		3803	return reply;\
		3804	};\
		3805	this.read_mathml = read_mathml;\n\
7653	schaersvoo	3806	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	3807	break;
		3808	case 17: fprintf(js_include_file,"\
7653	schaersvoo	3809	\n<!-- begin function 17 read_canvas() -->\n\
7614	schaersvoo	3810	function read_canvas(){\
		3811	if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
		3812	return userdraw_text;\
		3813	};\
		3814	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3815	<!-- end function 17 read_canvas() -->");
7614	schaersvoo	3816	break;
		3817	case 18: fprintf(js_include_file,"\
7653	schaersvoo	3818	\n<!-- begin function 18 read_canvas() -->\n\
7614	schaersvoo	3819	function read_canvas(){\
		3820	var p = 0;\
		3821	var reply = new Array();\
		3822	var name;\
		3823	var t = true;\
		3824	while(t){\
		3825	try{ name = eval('clocks'+p);\
		3826	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;};\
		3827	};\
		3828	if( p == 0){alert(\"clock(s) not modified...\");return;}\
		3829	return reply;\
		3830	};\
		3831	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3832	<!-- end function 18 read_canvas() -->");
7614	schaersvoo	3833	break;
		3834	case 19: fprintf(js_include_file,"\
7653	schaersvoo	3835	\n<!-- begin function 19 read_canvas() -->\n\
7614	schaersvoo	3836	function read_canvas(){\
		3837	return reply[0];\
		3838	};\
		3839	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3840	<!-- end function 19 read_canvas() -->");
7614	schaersvoo	3841	case 20: fprintf(js_include_file,"\
7653	schaersvoo	3842	\n<!-- begin function 20 read_canvas() -->\n\
7614	schaersvoo	3843	function read_canvas(){\
		3844	var len = ext_drag_images.length;\
		3845	var reply = new Array(len);\
		3846	for(var p = 0 ; p < len ; p++){\
		3847	var img = ext_drag_images[p];\
		3848	reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
		3849	};\
		3850	return reply;\
		3851	};\
		3852	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3853	<!-- end function 20 read_canvas() -->");
7614	schaersvoo	3854	break;
		3855	case 21: fprintf(js_include_file,"\
7653	schaersvoo	3856	\n<!-- begin function 21 read_canvas() -->\n\
7614	schaersvoo	3857	function read_canvas(){\
		3858	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3859	var reply_coord = new Array();var p = 0;\
		3860	while(userdraw_x[p]){\
		3861	reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
		3862	p++;\
		3863	};\
		3864	if(p == 0){alert(\"nothing drawn...\");return;};\
		3865	if( document.getElementById(\"canvas_input0\") ){\
		3866	var p = 0;var input_reply = new Array();\
		3867	if( document.getElementById(\"canvas_input0\")){\
		3868	var t = 0;\
		3869	while(document.getElementById(\"canvas_input\"+t)){\
		3870	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3871	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3872	p++;\
		3873	};\
		3874	t++;\
		3875	};\
		3876	};\
		3877	if( typeof userdraw_text != 'undefined' ){\
		3878	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3879	}\
		3880	else\
		3881	{\
		3882	return reply_coord+\"\\n\"+input_reply;\
		3883	}\
		3884	}\
		3885	else\
		3886	{\
		3887	if( typeof userdraw_text != 'undefined' ){\
		3888	return reply_coord+\"\\n\"+userdraw_text;\
		3889	}\
		3890	else\
		3891	{\
		3892	return reply_coord;\
		3893	};\
		3894	};\
		3895	};\
		3896	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3897	<!-- end function 21 read_canvas() -->");
7614	schaersvoo	3898	break;
		3899	case 22: fprintf(js_include_file,"\
7653	schaersvoo	3900	\n<!-- begin function 22 read_canvas() -->\n\
7614	schaersvoo	3901	function read_canvas(){\
		3902	var reply = new Array();\
		3903	var p = 0;\
		3904	var idx = 0;\
		3905	while(userdraw_x[p]){\
		3906	reply[idx] = px2x(userdraw_x[p]);\
		3907	idx++;\
		3908	reply[idx] = px2y(userdraw_y[p]);\
		3909	idx++;p++;\
		3910	};\
		3911	if(p == 0){alert(\"nothing drawn...\");return;};\
		3912	if( document.getElementById(\"canvas_input0\") ){\
		3913	var p = 0;var input_reply = new Array();\
		3914	if( document.getElementById(\"canvas_input0\")){\
		3915	var t = 0;\
		3916	while(document.getElementById(\"canvas_input\"+t)){\
		3917	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3918	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3919	p++;\
		3920	};\
		3921	t++;\
		3922	};\
		3923	};\
		3924	if( typeof userdraw_text != 'undefined' ){\
		3925	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3926	}\
		3927	else\
		3928	{\
		3929	return reply +\"\\n\"+input_reply;\
		3930	}\
		3931	}\
		3932	else\
		3933	{\
		3934	if( typeof userdraw_text != 'undefined' ){\
		3935	return reply +\"\\n\"+userdraw_text;\
		3936	}\
		3937	else\
		3938	{\
		3939	return reply;\
		3940	}\
		3941	};\
		3942	};\
		3943	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3944	<!-- end function 22 read_canvas() -->");
7614	schaersvoo	3945	break;
		3946
		3947	default: canvas_error("hmmm unknown replyformat...");break;
		3948	}
		3949	return;
		3950	}
		3951
		3952
		3953	/*
		3954	add drawfunction :
		3955	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		3956	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		3957	- grid / mathml
		3958	- will not scale or zoom in
		3959	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
		3960	- is printed directly into 'js_include_file'
		3961	*/
		3962
		3963	void add_javascript_functions(int js_functions[],int canvas_root_id){
		3964	int i;
		3965	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
		3966	if( js_functions[i] == 1){
		3967	switch(i){
		3968	case DRAG_EXTERNAL_IMAGE:
		3969	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	3970	var external_canvas = create_canvas%d(7,xsize,ysize);\
		3971	var external_ctx = external_canvas.getContext(\"2d\");\
		3972	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		3973	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		3974	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		3975	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		3976	var selected_image = null;\
		3977	var ext_image_cnt = 0;\
		3978	var ext_drag_images = new Array();\
		3979	function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
		3980	ext_image_cnt = idx;\
		3981	var image = new Image();\
		3982	image.src = URL;\
		3983	image.onload = function(){\
		3984	if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
		3985	if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
		3986	if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
		3987	img = new Array(10);\
		3988	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
		3989	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
		3990	ext_drag_images[idx] = img;\
		3991	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		3992	};\
		3993	};\
		3994	function dragstop(evt){\
		3995	selected_image = null;return;\
		3996	};\
		3997	function dragxy(evt){\
		3998	if( selected_image != null ){\
		3999	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4000	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4001	var s_img = ext_drag_images[selected_image];\
		4002	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		4003	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
		4004	ext_drag_images[selected_image] = s_img;\
		4005	external_ctx.clearRect(0,0,xsize,ysize);\
		4006	for(var i = 0; i <= ext_image_cnt ; i++){\
		4007	var img = ext_drag_images[i];\
		4008	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4009	};\
		4010	};\
		4011	};\
		4012	function setxy(evt){\
		4013	if( ! selected_image && evt.which == 1 ){\
		4014	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4015	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4016	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		4017	var ym = evt.clientY - external_canvas_rect.top + yoff;\
		4018	for(var p = 0 ; p <= ext_image_cnt ; p++){\
		4019	var img = ext_drag_images[p];\
		4020	if( img[0] == 1 ){\
		4021	var w = img.width;\
		4022	var h = img.height;\
		4023	if( xm > img[6] && xm < img[6] + img[4]){\
		4024	if( ym > img[7] && ym < img[7] + img[5]){\
		4025	img[6] = xm;\
		4026	img[7] = ym;\
		4027	ext_drag_images[p] = img;\
		4028	selected_image = p;\
		4029	dragxy(evt);\
		4030	};\
		4031	};\
		4032	};\
		4033	};\
		4034	}\
		4035	else\
		4036	{\
		4037	selected_image = null;\
		4038	};\
7614	schaersvoo	4039	};",canvas_root_id);
		4040	break;
		4041
		4042	case DRAW_EXTERNAL_IMAGE:
		4043	fprintf(js_include_file,"\n<!-- draw external images -->\n\
		4044	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
		4045	var image = new Image();\
		4046	image.src = URL;\
		4047	var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
		4048	image.onload = function(){\
		4049	if( x0 < 1 ){ x0 = 0; };\
		4050	if( y0 < 1 ){ y0 = 0; };\
		4051	if( sx < 1 ){ sx = 0; };\
		4052	if( sy < 1 ){ sy = 0; };\
		4053	if( width < 1 ){ width = image.width;};\
		4054	if( height < 1 ){ height = image.height;};\
		4055	if( swidth < 1 ){ swidth = image.width;};\
		4056	if( sheight < 1 ){ sheight = image.height;};\
		4057	var ml = x0 - sx;\
		4058	var mh = y0 - sy;\
		4059	canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
		4060	canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
		4061	canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
		4062	canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
		4063	canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
		4064	};\
7653	schaersvoo	4065	};",canvas_root_id);
7614	schaersvoo	4066	break;
		4067
		4068	case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px forbidden zone for drawing : y < ysize - 15*/
		4069	fprintf(js_include_file,"\n<!-- draw zoom buttons -->\n\
		4070	draw_zoom_buttons = function(canvas_type,color,opacity){\
		4071	var obj;\
		4072	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4073	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4074	}\
		4075	else\
		4076	{\
		4077	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4078	};\
		4079	var ctx = obj.getContext(\"2d\");\
		4080	ctx.font =\"18px Ariel\";\
		4081	ctx.textAlign = \"right\";\
		4082	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4083	ctx.fillText(\"+\",xsize,ysize);\
		4084	ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
		4085	ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
		4086	ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
		4087	ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
		4088	ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
		4089	ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
		4090	ctx.stroke();\
7653	schaersvoo	4091	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4092
		4093	break;
		4094	case DRAW_GRIDFILL:/* not used for userdraw */
		4095	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
		4096	draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
		4097	var obj;\
		4098	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4099	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4100	}\
		4101	else\
		4102	{\
		4103	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4104	};\
		4105	var ctx = obj.getContext(\"2d\");\
		4106	var x,y;\
		4107	ctx.save();\
		4108	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
7645	schaersvoo	4109	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4110	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4111	ctx.moveTo(x,y0);\
		4112	ctx.lineTo(x,ysize);\
		4113	};\
7645	schaersvoo	4114	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	4115	ctx.moveTo(x0,y);\
		4116	ctx.lineTo(xsize,y);\
		4117	};\
		4118	ctx.stroke();\
		4119	ctx.restore();\
7653	schaersvoo	4120	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4121	break;
		4122
		4123	case DRAW_IMAGEFILL:/* not used for userdraw */
		4124	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
		4125	draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
		4126	var obj;\
		4127	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4128	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4129	}\
		4130	else\
		4131	{\
		4132	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4133	};\
		4134	var ctx = obj.getContext(\"2d\");\
		4135	ctx.save();\
		4136	var img = new Image();\
		4137	img.src = URL;\
		4138	img.onload = function(){\
		4139	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		4140	ctx.drawImage(img,x0,y0,xsize,ysize);\
		4141	}\
		4142	else\
		4143	{\
		4144	var repeat = \"repeat\";\
		4145	if(img.width > xsize - x0){\
		4146	repeat = \"repeat-y\";\
		4147	}\
		4148	else\
		4149	{\
		4150	if( img.height > ysize -x0 ){\
		4151	repeat = \"repeat-x\";\
		4152	}\
		4153	}\
		4154	var pattern = ctx.createPattern(img,repeat);\
		4155	ctx.rect(x0,y0,xsize,ysize);\
		4156	ctx.fillStyle = pattern;\
		4157	}\
		4158	ctx.fill();\
		4159	};\
		4160	ctx.restore();\
		4161	return;\
7653	schaersvoo	4162	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4163	break;
		4164
		4165	case DRAW_DOTFILL:/* not used for userdraw */
		4166	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
		4167	draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
		4168	var obj;\
		4169	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4170	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4171	}\
		4172	else\
		4173	{\
		4174	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4175	};\
		4176	var ctx = obj.getContext(\"2d\");\
		4177	var x,y;\
		4178	ctx.closePath();\
		4179	ctx.save();\
7645	schaersvoo	4180	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4181	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4182	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4183	for( y = y0 ; y < ysize+dy ; y = y + dy ){\
		4184	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		4185	ctx.closePath();\
		4186	}\
		4187	}\
		4188	ctx.fill();\
		4189	ctx.restore();\
7653	schaersvoo	4190	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4191	break;
7645	schaersvoo	4192
7647	schaersvoo	4193	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	4194	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
7647	schaersvoo	4195	draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	4196	var obj;\
		4197	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4198	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4199	}\
		4200	else\
		4201	{\
		4202	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4203	};\
		4204	var ctx = obj.getContext(\"2d\");\
		4205	var x;\
		4206	var y;\
		4207	ctx.save();\
		4208	ctx.lineWidth = linewidth;\
		4209	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4210	y = ysize;\
		4211	for( x = x0 ; x < xsize ; x = x + dx ){\
		4212	ctx.moveTo(x,y0);\
		4213	ctx.lineTo(xsize,y);\
		4214	y = y - dy;\
		4215	};\
		4216	y = y0;\
		4217	for( x = xsize ; x > 0 ; x = x - dx){\
		4218	ctx.moveTo(x,ysize);\
		4219	ctx.lineTo(x0,y);\
		4220	y = y + dy;\
		4221	};\
		4222	x = x0;\
		4223	for( y = y0 ; y < ysize ; y = y + dy ){\
		4224	ctx.moveTo(xsize,y);\
		4225	ctx.lineTo(x,ysize);\
		4226	x = x + dx;\
		4227	};\
		4228	x = xsize;\
		4229	for( y = ysize ; y > y0 ; y = y - dy ){\
		4230	ctx.moveTo(x,y0);\
		4231	ctx.lineTo(x0,y);\
		4232	x = x - dx;\
		4233	};\
		4234	ctx.stroke();\
		4235	ctx.restore();\
		4236	return;\
7653	schaersvoo	4237	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4238	break;
7647	schaersvoo	4239
		4240	case DRAW_HATCHFILL:/* not used for userdraw */
		4241	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
		4242	draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
		4243	var obj;\
		4244	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4245	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4246	}\
		4247	else\
		4248	{\
		4249	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4250	};\
		4251	var ctx = obj.getContext(\"2d\");\
		4252	var x;\
		4253	var y;\
		4254	ctx.save();\
		4255	ctx.lineWidth = linewidth;\
		4256	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4257	y = ysize;\
		4258	for( x = x0 ; x < xsize ; x = x + dx ){\
		4259	ctx.moveTo(x,y0);\
		4260	ctx.lineTo(xsize,y);\
		4261	y = y - dy;\
		4262	};\
		4263	y = y0;\
		4264	for( x = xsize ; x >= dx ; x = x - dx){\
		4265	ctx.moveTo(x,ysize);\
		4266	ctx.lineTo(x0,y);\
		4267	y = y + dy;\
		4268	};\
		4269	ctx.stroke();\
		4270	ctx.restore();\
		4271	return;\
7653	schaersvoo	4272	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	4273	break;
7614	schaersvoo	4274	case DRAW_CIRCLES:/* used for userdraw */
		4275	fprintf(js_include_file,"\n<!-- draw circles -->\n\
		4276	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){\
		4277	ctx.save();\
		4278	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4279	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4280	ctx.lineWidth = line_width;\
		4281	for(var p = 0 ; p < x_points.length ; p++ ){\
		4282	ctx.beginPath();\
		4283	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		4284	ctx.closePath();\
		4285	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4286	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4287	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4288	ctx.stroke();\
		4289	}\
		4290	ctx.restore();\
		4291	return;\
7653	schaersvoo	4292	};");
7614	schaersvoo	4293	break;
7663	schaersvoo	4294	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		4295	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
		4296	draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4297	ctx.save();\
		4298	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4299	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4300	ctx.lineWidth = line_width;\
		4301	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4302	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4303	ctx.clearRect(0,0,xsize,ysize);\
		4304	ctx.beginPath();\
		4305	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		4306	ctx.moveTo(x_points[p],y_points[p]);\
		4307	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4308	}\
		4309	ctx.closePath();\
		4310	ctx.stroke();\
		4311	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4312	for(var p = 0 ; p < x_points.length ; p++ ){\
		4313	ctx.beginPath();\
		4314	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		4315	ctx.closePath();ctx.fill();ctx.stroke();\
		4316	};\
		4317	ctx.restore();\
		4318	return;\
		4319	};");
		4320	break;
7614	schaersvoo	4321
		4322	case DRAW_SEGMENTS:/* used for userdraw */
		4323	fprintf(js_include_file,"\n<!-- draw segments -->\n\
		4324	draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4325	ctx.save();\
		4326	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4327	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4328	ctx.lineWidth = line_width;\
		4329	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4330	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4331	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4332	ctx.beginPath();\
		4333	ctx.moveTo(x_points[p],y_points[p]);\
		4334	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4335	ctx.closePath();\
		4336	ctx.stroke();\
		4337	}\
		4338	ctx.restore();\
		4339	return;\
		4340	};");
		4341	break;
		4342
		4343	case DRAW_LINES:/* used for userdraw */
		4344	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		4345	function calc_line(x1,x2,y1,y2){\
		4346	var marge = 2;\
		4347	if(x1 < x2+marge && x1>x2-marge){\
		4348	return [x1,0,x1,ysize];\
		4349	};\
		4350	if(y1 < y2+marge && y1>y2-marge){\
		4351	return [0,y1,xsize,y1];\
		4352	};\
		4353	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		4354	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		4355	return [0,Y1,xsize,Y2];\
		4356	};\
		4357	draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4358	ctx.save();\
		4359	var line = new Array(4);\
		4360	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4361	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4362	ctx.lineWidth = line_width;\
		4363	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4364	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4365	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4366	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		4367	ctx.beginPath();\
		4368	ctx.moveTo(line[0],line[1]);\
		4369	ctx.lineTo(line[2],line[3]);\
		4370	ctx.closePath();\
		4371	ctx.stroke();\
		4372	}\
		4373	ctx.restore();\
		4374	return;\
		4375	};");
		4376	break;
		4377
		4378	case DRAW_CROSSHAIRS:/* used for userdraw */
		4379	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
		4380	draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
		4381	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4382	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4383	ctx.lineWidth = line_width;\
		4384	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4385	var x1,x2,y1,y2;\
		4386	for(var p = 0 ; p < x_points.length ; p++ ){\
		4387	x1 = x_points[p] - crosshair_size;\
		4388	x2 = x_points[p] + crosshair_size;\
		4389	y1 = y_points[p] - crosshair_size;\
		4390	y2 = y_points[p] + crosshair_size;\
		4391	ctx.beginPath();\
		4392	ctx.moveTo(x1,y1);\
		4393	ctx.lineTo(x2,y2);\
		4394	ctx.closePath();\
		4395	ctx.stroke();\
		4396	ctx.beginPath();\
		4397	ctx.moveTo(x2,y1);\
		4398	ctx.lineTo(x1,y2);\
		4399	ctx.closePath();\
		4400	ctx.stroke();\
		4401	}\
		4402	ctx.restore();\
		4403	return;\
7653	schaersvoo	4404	};");
7614	schaersvoo	4405	break;
		4406
		4407	case DRAW_RECTS:/* used for userdraw */
		4408	fprintf(js_include_file,"\n<!-- draw rects -->\n\
		4409	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){\
		4410	ctx.save();\
		4411	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4412	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4413	ctx.lineWidth = line_width;\
		4414	ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
		4415	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		4416	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		4417	ctx.beginPath();\
		4418	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		4419	ctx.closePath();\
		4420	if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4421	ctx.stroke();\
		4422	};\
		4423	ctx.restore();\
		4424	return;\
7653	schaersvoo	4425	};");
7614	schaersvoo	4426	break;
		4427
		4428	case DRAW_ROUNDRECTS:/* used for userdraw */
		4429	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
		4430	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){\
		4431	ctx.save();\
		4432	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4433	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4434	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4435	var x,y,w,h,r;\
		4436	for(var p = 0; p < x_points.length; p = p+2){\
		4437	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);\
		4438	ctx.beginPath();ctx.moveTo(x + r, y);\
		4439	ctx.lineTo(x + w - r, y);\
		4440	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		4441	ctx.lineTo(x + w, y + h - r);\
		4442	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		4443	ctx.lineTo(x + r, y + h);\
		4444	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		4445	ctx.lineTo(x, y + r);\
		4446	ctx.quadraticCurveTo(x, y, x + r, y);\
		4447	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		4448	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4449	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		4450	ctx.stroke();\
		4451	}\
		4452	ctx.restore();\
7653	schaersvoo	4453	};");
7614	schaersvoo	4454	break;
		4455
		4456	case DRAW_ELLIPSES:/* not used for userdraw */
		4457	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
		4458	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){\
		4459	var obj;\
		4460	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4461	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4462	}\
		4463	else\
		4464	{\
		4465	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4466	};\
		4467	var ctx = obj.getContext(\"2d\");\
		4468	ctx.save();\
		4469	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4470	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4471	var cx,cy,ry,rx;\
		4472	ctx.lineWidth = line_width;\
		4473	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		4474	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4475	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4476	for(var p=0;p< x_points.length;p = p+2){\
		4477	ctx.beginPath();\
		4478	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		4479	ctx.translate(cx - rx, cy - ry);\
		4480	ctx.scale(rx, ry);\
		4481	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		4482	if( use_filled == 1 ){ctx.fill();}\
		4483	ctx.stroke();\
		4484	};\
		4485	ctx.restore();\
7653	schaersvoo	4486	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4487	break;
		4488
		4489	case DRAW_PATHS: /* used for userdraw */
		4490	fprintf(js_include_file,"\n<!-- draw paths -->\n\
		4491	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){\
		4492	ctx.save();\
		4493	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4494	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4495	ctx.lineWidth = line_width;\
		4496	ctx.lineJoin = \"round\";\
		4497	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4498	ctx.beginPath();\
		4499	ctx.moveTo(x_points[0],y_points[0]);\
		4500	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		4501	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		4502	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4503	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4504	ctx.stroke();\
		4505	ctx.restore();\
		4506	return;\
		4507	};");
		4508
		4509	break;
		4510	case DRAW_ARROWS:/* used for userdraw */
		4511	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
		4512	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){\
		4513	ctx.save();\
		4514	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4515	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4516	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4517	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4518	ctx.lineWidth = line_width;\
		4519	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4520	ctx.lineCap = \"round\";\
		4521	ctx.save();\
		4522	var x1,y1,x2,y2,dx,dy,len;\
		4523	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
		4524	ctx.restore();ctx.save();\
		4525	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		4526	len = Math.sqrt(dxdx+dydy);\
		4527	ctx.translate(x2,y2);\
		4528	ctx.rotate(Math.atan2(dy,dx));\
		4529	ctx.lineCap = \"round\";\
		4530	ctx.beginPath();\
		4531	ctx.moveTo(0,0);\
		4532	ctx.lineTo(-len,0);\
		4533	ctx.closePath();\
		4534	ctx.stroke();\
		4535	ctx.beginPath();\
		4536	ctx.moveTo(0,0);\
		4537	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4538	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4539	ctx.closePath();\
		4540	ctx.fill();\
		4541	if( type == 2 ){\
		4542	ctx.restore();\
		4543	ctx.save();\
		4544	ctx.translate(x1,y1);\
		4545	ctx.rotate(Math.atan2(-dy,-dx));\
		4546	ctx.beginPath();\
		4547	ctx.moveTo(0,0);\
		4548	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4549	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4550	ctx.closePath();\
		4551	ctx.stroke();\
		4552	ctx.fill();\
		4553	}\
		4554	}\
		4555	ctx.restore();\
		4556	return;\
7653	schaersvoo	4557	};");
7614	schaersvoo	4558	break;
		4559
		4560	case DRAW_VIDEO:/* not used for userdraw */
		4561	fprintf(js_include_file,"\n<!-- draw video -->\n\
		4562	draw_video = function(canvas_root_id,x,y,w,h,URL){\
		4563	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4564	var video_div = document.createElement(\"div\");\
		4565	canvas_div.appendChild(video_div);\
		4566	video_div.style.position = \"absolute\";\
		4567	video_div.style.left = x+\"px\";\
		4568	video_div.style.top = y+\"px\";\
		4569	video_div.style.width = w+\"px\";\
		4570	video_div.style.height = h+\"px\";\
		4571	var video = document.createElement(\"video\");\
		4572	video_div.appendChild(video);\
		4573	video.style.width = w+\"px\";\
		4574	video.style.height = h+\"px\";\
		4575	video.autobuffer = true;\
		4576	video.controls = true;video.autoplay = false;\
		4577	var src = document.createElement(\"source\");\
		4578	src.type = \"video/mp4\";\
		4579	src.src = URL;\
		4580	video.appendChild(src);\
		4581	video.load();\
		4582	return;\
7653	schaersvoo	4583	};");
7614	schaersvoo	4584	break;
		4585
		4586	case DRAW_AUDIO:/* not used for userdraw */
		4587	fprintf(js_include_file,"\n<!-- draw audio -->\n\
		4588	draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
		4589	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4590	var audio_div = document.createElement(\"div\");\
		4591	canvas_div.appendChild(audio_div);\
		4592	audio_div.style.position = \"absolute\";\
		4593	audio_div.style.left = x+\"px\";\
		4594	audio_div.style.top = y+\"px\";\
		4595	audio_div.style.width = w+\"px\";\
		4596	audio_div.style.height = h+\"px\";\
		4597	var audio = document.createElement(\"audio\");\
		4598	audio_div.appendChild(audio);\
		4599	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		4600	audio.autobuffer = true;\
		4601	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
		4602	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
		4603	var src1 = document.createElement(\"source\");\
		4604	src1.type = \"audio/ogg\";\
		4605	src1.src = URL1;\
		4606	audio.appendChild(src1);\
		4607	var src2 = document.createElement(\"source\");\
		4608	src2.type = \"audio/mpeg\";\
		4609	src2.src = URL2;\
		4610	audio.appendChild(src2);\
		4611	audio.load();\
		4612	return;\
7653	schaersvoo	4613	};");
7614	schaersvoo	4614	break;
		4615
		4616	case DRAW_HTTP:/* not used for userdraw */
		4617	fprintf(js_include_file,"\n<!-- draw http -->\n\
		4618	draw_http = function(canvas_root_id,x,y,w,h,URL){\
		4619	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4620	var http_div = document.createElement(\"div\");\
		4621	var iframe = document.createElement(\"iframe\");\
		4622	canvas_div.appendChild(http_div);\
		4623	http_div.appendChild(iframe);\
		4624	iframe.src = URL;\
		4625	iframe.setAttribute(\"width\",w);\
		4626	iframe.setAttribute(\"height\",h);\
		4627	return;\
7653	schaersvoo	4628	};");
7614	schaersvoo	4629	break;
		4630
		4631	case DRAW_XML:
		4632	fprintf(js_include_file,"\n<!-- draw xml -->\n\
		4633	draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
		4634	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4635	var xml_div = document.createElement(\"div\");\
		4636	canvas_div.appendChild(xml_div);\
		4637	xml_div.innerHTML = mathml;\
		4638	if(onclick != 0){\
		4639	xml_div.onclick = function(){\
		4640	reply[0] = onclick;\
		4641	alert(\"send \"+onclick+\" ?\");\
		4642	};\
		4643	};\
		4644	xml_div.style.position = \"absolute\";\
		4645	xml_div.style.left = x+\"px\";\
		4646	xml_div.style.top = y+\"px\";\
		4647	xml_div.style.width = w+\"px\";\
		4648	xml_div.style.height = h+\"px\";\
		4649	return;\
7653	schaersvoo	4650	};"
7614	schaersvoo	4651	);
		4652	break;
7654	schaersvoo	4653	case DRAW_SGRAPH:
		4654	/*
		4655	xstart = given
		4656	ystart = given
		4657	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		4658	*/
		4659	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
7658	schaersvoo	4660	draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
		4661	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);};\
		4662	var ctx = obj.getContext(\"2d\");\
		4663	ctx.font = fontfamily;\
		4664	var minor_opacity = 0.8*opacity;\
		4665	ctx.clearRect(0,0,xsize,ysize);\
		4666	var d_x = 1.8*font_size;\
		4667	var d_y = ctx.measureText(\"+ymax+\").width;\
		4668	var dx = xsize / (xmax - xmin);\
		4669	var dy = ysize / (ymax - ymin);\
		4670	var zero_x = d_y + dx;\
		4671	var zero_y = ysize - dy - d_x;\
7659	schaersvoo	4672	var snor_x;\
7654	schaersvoo	4673	if( xstart != xmin){\
7658	schaersvoo	4674	snor_x = 0.1*xsize;\
		4675	}\
		4676	else\
		4677	{\
		4678	snor_x = 0;\
		4679	xstart = xmin;\
		4680	};\
		4681	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4682	ctx.lineWidth = 2;\
		4683	ctx.beginPath();\
		4684	ctx.moveTo(xsize,zero_y);\
		4685	ctx.lineTo(zero_x,zero_y);\
		4686	ctx.lineTo(zero_x,0);\
		4687	ctx.stroke();\
		4688	ctx.closePath();\
		4689	ctx.beginPath();\
		4690	ctx.moveTo(zero_x,zero_y);\
		4691	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		4692	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		4693	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		4694	ctx.lineTo(zero_x + snor_x,zero_y);\
		4695	ctx.stroke();\
		4696	ctx.closePath();\
		4697	ctx.beginPath();\
		4698	var num = xstart;\
7660	schaersvoo	4699	var flipflop = 1;\
7658	schaersvoo	4700	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
		4701	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7660	schaersvoo	4702	if( 0.5*ctx.measureText(num).width > step_x ){\
		4703	if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};\
		4704	};\
		4705	if( flipflop == 1){\
7658	schaersvoo	4706	ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+font_size);\
		4707	}\
		4708	else\
		4709	{\
		4710	ctx.fillText(num,x - 0.5ctx.measureText(num).width,zero_y+2font_size);\
		4711	}\
		4712	num = num + xmajor;\
		4713	};\
		4714	ctx.stroke();\
		4715	ctx.closePath();\
		4716	ctx.lineWidth = 1;\
		4717	ctx.beginPath();\
		4718	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4719	ctx.moveTo(x,zero_y);\
		4720	ctx.lineTo(x,0);\
		4721	};\
		4722	ctx.stroke();\
		4723	ctx.closePath();\
		4724	if( xminor > 1){\
		4725	ctx.lineWidth = 0.5;\
		4726	ctx.beginPath();\
		4727	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4728	var minor_step_x = step_x / xminor;\
		4729	var nx;\
		4730	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		4731	num = 1;\
		4732	for(var p = 1 ; p < xminor ; p++){\
		4733	nx = x + num*minor_step_x;\
		4734	ctx.moveTo(nx,zero_y);\
		4735	ctx.lineTo(nx,0);\
		4736	num++;\
		4737	};\
		4738	};\
		4739	ctx.stroke();\
		4740	ctx.closePath();\
		4741	ctx.beginPath();\
		4742	ctx.lineWidth = 2;\
		4743	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4744	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4745	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		4746	};\
		4747	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		4748	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		4749	};\
		4750	ctx.stroke();\
		4751	ctx.closePath();\
		4752	ctx.lineWidth = 0.5;\
		4753	};\
		4754	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		4755	if( ystart != ymin){\
		4756	snor_y = 0.1*ysize;\
		4757	}\
		4758	else\
		4759	{\
		4760	snor_y = 0;\
		4761	ystart = ymin;\
		4762	};\
		4763	ctx.lineWidth = 2;\
		4764	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4765	ctx.beginPath();\
		4766	ctx.moveTo(zero_x,zero_y);\
		4767	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		4768	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		4769	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		4770	ctx.lineTo(zero_x,zero_y - snor_y);\
		4771	ctx.stroke();\
		4772	ctx.closePath();\
		4773	ctx.beginPath();\
		4774	ctx.lineWidth = 1;\
		4775	num = ystart;\
		4776	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		4777	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		4778	ctx.moveTo(zero_x,y);\
		4779	ctx.lineTo(xsize,y);\
		4780	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		4781	num = num + ymajor;\
		4782	};\
		4783	ctx.stroke();\
		4784	ctx.closePath();\
		4785	if( yminor > 1){\
		4786	ctx.lineWidth = 0.5;\
		4787	ctx.beginPath();\
		4788	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4789	var minor_step_y = step_y / yminor;\
		4790	var ny;\
		4791	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		4792	num = 1;\
		4793	for(var p = 1 ;p < yminor;p++){\
		4794	ny = y + num*minor_step_y;\
		4795	ctx.moveTo(zero_x,ny);\
		4796	ctx.lineTo(xsize,ny);\
		4797	num++;\
		4798	};\
		4799	};\
		4800	ctx.stroke();\
		4801	ctx.closePath();\
		4802	ctx.lineWidth = 2;\
		4803	ctx.beginPath();\
		4804	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4805	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		4806	ctx.moveTo(zero_x,y);\
		4807	ctx.lineTo(zero_x+12,y);\
		4808	};\
		4809	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		4810	ctx.moveTo(zero_x,y);\
		4811	ctx.lineTo(zero_x+6,y);\
		4812	};\
		4813	ctx.stroke();\
		4814	ctx.closePath();\
		4815	};\
		4816	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
7654	schaersvoo	4817	if( typeof legend%d !== 'undefined' ){\
		4818	ctx.globalAlpha = 1.0;\
		4819	var y_offset = 2*font_size;\
		4820	var txt;var txt_size;\
		4821	var x_offset = xsize - 2*font_size;\
		4822	var l_length = legend%d.length;var barcolor = new Array();\
		4823	if( typeof legendcolors%d !== 'undefined' ){\
		4824	for(var p = 0 ; p < l_length ; p++){\
		4825	barcolor[p] = legendcolors%d[p];\
		4826	};\
		4827	}else{\
		4828	if( barcolor.length == 0 ){\
		4829	for(var p = 0 ; p < l_length ; p++){\
		4830	barcolor[p] = stroke_color;\
		4831	};\
		4832	};\
		4833	};\
		4834	for(var p = 0; p < l_length; p++){\
		4835	ctx.fillStyle = barcolor[p];\
		4836	txt = legend%d[p];\
		4837	txt_size = ctx.measureText(txt).width;\
		4838	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		4839	y_offset = parseInt(y_offset + 1.5*font_size);\
		4840	};\
		4841	};\
7660	schaersvoo	4842	if( typeof xaxislabel !== 'undefined' ){\
7658	schaersvoo	4843	ctx.fillStyle = \'#000000\';\
		4844	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		4845	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		4846	};\
7660	schaersvoo	4847	if( typeof yaxislabel !== 'undefined'){\
7658	schaersvoo	4848	ctx.save();\
		4849	ctx.fillStyle = \'#000000\';\
		4850	var txt_size = ctx.measureText(yaxislabel).width;\
		4851	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		4852	ctx.rotate(-0.5*Math.PI);\
		4853	ctx.fillText(yaxislabel,0,0);\
		4854	ctx.save();\
		4855	};\
7654	schaersvoo	4856	};\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);
		4857	break;
7614	schaersvoo	4858
		4859	case DRAW_GRID:/* not used for userdraw */
		4860	fprintf(js_include_file,"\n<!-- draw grid -->\n\
		4861	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){\
		4862	var obj;\
		4863	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4864	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4865	}\
		4866	else\
		4867	{\
		4868	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4869	};\
		4870	var ctx = obj.getContext(\"2d\");\
		4871	ctx.clearRect(0,0,xsize,ysize);\
		4872	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4873	ctx.save();\
		4874	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		4875	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		4876	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4877	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		4878	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		4879	ctx.font = font_family;\
		4880	var xstep = xsize*xmajor/(xmax - xmin);\
		4881	var ystep = ysize*ymajor/(ymax - ymin);\
		4882	var x2step = xstep / xminor;\
		4883	var y2step = ystep / yminor;\
7654	schaersvoo	4884	var zero_x;var zero_y;var f_x;var f_y;\
		4885	if(xmin < 0 ){zero_x = x2px(0);f_x = 1;}else{zero_x = x2px(xmin);f_x = -1;}\
		4886	if(ymin < 0 ){zero_y = y2px(0);f_y = 1;}else{zero_y = y2px(ymin);f_y = -1;}\
7614	schaersvoo	4887	ctx.beginPath();\
		4888	ctx.lineWidth = line_width;\
		4889	ctx.strokeStyle = stroke_color;\
		4890	for(var p = zero_x ; p < xsize; p = p + xstep){\
		4891	ctx.moveTo(p,0);\
		4892	ctx.lineTo(p,ysize);\
		4893	};\
		4894	for(var p = zero_x ; p > 0; p = p - xstep){\
		4895	ctx.moveTo(p,0);\
		4896	ctx.lineTo(p,ysize);\
		4897	};\
		4898	for(var p = zero_y ; p < ysize; p = p + ystep){\
		4899	ctx.moveTo(0,p);\
		4900	ctx.lineTo(xsize,p);\
		4901	};\
		4902	for(var p = zero_y ; p > 0; p = p - ystep){\
		4903	ctx.moveTo(0,p);\
		4904	ctx.lineTo(xsize,p);\
		4905	};\
		4906	if( typeof xaxislabel !== 'undefined' ){\
		4907	ctx.save();\
		4908	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		4909	var corr = ctx.measureText(xaxislabel).width;\
		4910	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		4911	ctx.restore();\
		4912	};\
		4913	if( typeof yaxislabel !== 'undefined' ){\
		4914	ctx.save();\
		4915	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		4916	corr = ctx.measureText(yaxislabel).width;\
		4917	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		4918	ctx.rotate(-0.5*Math.PI);\
		4919	ctx.fillText(yaxislabel,0,0);\
		4920	ctx.restore();\
		4921	};\
		4922	ctx.stroke();\
		4923	ctx.closePath();\
		4924	if( use_axis == 1 ){\
		4925	ctx.beginPath();\
		4926	ctx.strokeStyle = stroke_color;\
		4927	ctx.lineWidth = 0.6*line_width;\
		4928	for(var p = zero_x ; p < xsize; p = p + x2step){\
		4929	ctx.moveTo(p,0);\
		4930	ctx.lineTo(p,ysize);\
		4931	};\
		4932	for(var p = zero_x ; p > 0; p = p - x2step){\
		4933	ctx.moveTo(p,0);\
		4934	ctx.lineTo(p,ysize);\
		4935	};\
		4936	for(var p = zero_y ; p < ysize; p = p + y2step){\
		4937	ctx.moveTo(0,p);\
		4938	ctx.lineTo(xsize,p);\
		4939	};\
		4940	for(var p = zero_y ; p > 0; p = p - y2step){\
		4941	ctx.moveTo(0,p);\
		4942	ctx.lineTo(xsize,p);\
		4943	};\
		4944	ctx.stroke();\
		4945	ctx.closePath();\
		4946	ctx.beginPath();\
		4947	ctx.lineWidth = 2*line_width;\
		4948	ctx.strokeStyle = axis_color;\
		4949	ctx.moveTo(0,zero_y);\
		4950	ctx.lineTo(xsize,zero_y);\
		4951	ctx.moveTo(zero_x,0);\
		4952	ctx.lineTo(zero_x,ysize);\
		4953	ctx.stroke();\
		4954	ctx.closePath();\
		4955	ctx.lineWidth = line_width+0.5;\
		4956	ctx.beginPath();\
		4957	for(var p = zero_x ; p < xsize; 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_x ; p > 0; p = p - xstep){\
		4962	ctx.moveTo(p,zero_y-tics_length);\
		4963	ctx.lineTo(p,zero_y+tics_length);\
		4964	};\
		4965	for(var p = zero_y ; p < ysize; 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_y ; p > 0; p = p - ystep){\
		4970	ctx.moveTo(zero_x-tics_length,p);\
		4971	ctx.lineTo(zero_x+tics_length,p);\
		4972	};\
		4973	for(var p = zero_x ; p < xsize; 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_x ; p > 0; p = p - x2step){\
		4978	ctx.moveTo(p,zero_y-0.5*tics_length);\
		4979	ctx.lineTo(p,zero_y+0.5*tics_length);\
		4980	};\
		4981	for(var p = zero_y ; p < ysize; 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	for(var p = zero_y ; p > 0; p = p - y2step){\
		4986	ctx.moveTo(zero_x-0.5*tics_length,p);\
		4987	ctx.lineTo(zero_x+0.5*tics_length,p);\
		4988	};\
		4989	ctx.stroke();\
		4990	ctx.closePath();\
		4991	if( use_axis_numbering == 1 ){\
		4992	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		4993	if( x_strings != null ){\
		4994	var f = 1.4;\
		4995	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
		4996	for(var p = 0 ; p < len ; p = p+2){\
		4997	var x_nums = x2px(eval(x_strings[p]));\
		4998	var x_text = x_strings[p+1];\
		4999	corr = ctx.measureText(x_text).width;\
		5000	skip = 1.2*corr/xstep;\
		5001	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		5002	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		5003	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
		5004	}\
		5005	}\
		5006	else\
		5007	{\
7654	schaersvoo	5008	corr=0;skip = 1;cnt = px2x(zero_x);\
7614	schaersvoo	5009	prec = Math.log(precision)/(Math.log(10));\
7654	schaersvoo	5010	for( var p = zero_x ; p < xsize ; p = p+xstep){\
7614	schaersvoo	5011	if(skip == 0 ){\
		5012	disp_cnt = cnt.toFixed(prec);\
		5013	corr = ctx.measureText(disp_cnt).width;\
		5014	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5015	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5016	}\
		5017	else\
		5018	{\
		5019	skip--;\
		5020	};\
		5021	cnt = cnt + xmajor;\
		5022	};\
7654	schaersvoo	5023	cnt = px2x(zero_x);skip = 1;\
		5024	for( var p = zero_x ; p > 0 ; p = p-xstep){\
7614	schaersvoo	5025	if(skip == 0 ){\
		5026	disp_cnt = cnt.toFixed(prec);\
		5027	corr = ctx.measureText(disp_cnt).width;\
		5028	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5029	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5030	}\
		5031	else\
		5032	{\
		5033	skip--;\
		5034	};\
		5035	cnt = cnt - xmajor;\
		5036	};\
		5037	};\
		5038	if( y_strings != null ){\
		5039	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
		5040	for(var p = 0 ; p < len ; p = p+2){\
		5041	var y_nums = y2px(eval(y_strings[p]));\
		5042	var y_text = y_strings[p+1];\
		5043	var f = 1.4;\
		5044	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		5045	if( corr > zero_x){corr = parseInt(zero_x+2); }\
		5046	ctx.fillText(y_text,zero_x - corr,y_nums);\
		5047	};\
		5048	}\
		5049	else\
		5050	{\
7654	schaersvoo	5051	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5052	for( var p = zero_y ; p < ysize ; p = p+ystep){\
7614	schaersvoo	5053	if(skip == 0 ){\
		5054	skip = parseInt(1.4*font_size/ystep);\
		5055	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5056	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5057	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5058	}\
		5059	else\
		5060	{\
		5061	skip--;\
		5062	};\
		5063	cnt = cnt - ymajor;\
		5064	}\
7654	schaersvoo	5065	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5066	for( var p = zero_y ; p > 0 ; p = p-ystep){\
7614	schaersvoo	5067	if(skip == 0 ){\
		5068	skip = parseInt(1.4*font_size/ystep);\
		5069	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5070	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5071	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5072	}\
		5073	else\
		5074	{\
		5075	skip--;\
		5076	};\
		5077	cnt = cnt + ymajor;\
		5078	}\
		5079	};\
		5080	};\
		5081	ctx.strokeStyle = stroke_color;\
		5082	ctx.lineWidth = 2;\
		5083	ctx.beginPath();\
		5084	ctx.rect(0,0,xsize,ysize);\
		5085	ctx.closePath();\
		5086	ctx.stroke();\
		5087	};\
		5088	if( typeof linegraph_0 !== 'undefined' ){\
		5089	ctx.restore();\
		5090	ctx.save();\
		5091	ctx.globalAlpha = 1.0;\
		5092	var i = 0;\
		5093	var line_name = eval('linegraph_'+i);\
		5094	while ( typeof line_name !== 'undefined' ){\
		5095	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		5096	ctx.lineWidth = parseInt(line_name[1]);\
		5097	if(line_name[2] == \"1\"){\
		5098	var d1 = parseInt(line_name[3]);\
		5099	var d2 = parseInt(line_name[4]);\
		5100	if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
		5101	}\
		5102	else\
		5103	{\
		5104	if(ctx.setLineDash){ctx.setLineDash = null;}\
		5105	if(ctx.mozDash){ctx.mozDash = null;}\
		5106	};\
		5107	var data_x = new Array();\
		5108	var data_y = new Array();\
		5109	var lb = line_name.length;\
		5110	var idx = 0;\
		5111	for( var p = 5 ; p < lb ; p = p + 2 ){\
		5112	data_x[idx] = x2px(line_name[p]);\
		5113	data_y[idx] = y2px(line_name[p+1]);\
		5114	idx++;\
		5115	};\
		5116	for( var p = 0; p < idx ; p++){\
		5117	ctx.beginPath();\
		5118	ctx.moveTo(data_x[p],data_y[p]);\
		5119	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		5120	ctx.stroke();\
		5121	ctx.closePath();\
		5122	};\
		5123	i++;\
		5124	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		5125	};\
		5126	};\
		5127	var barcolor = new Array();\
		5128	if( typeof barchart%d !== 'undefined' ){\
		5129	ctx.restore();\
		5130	ctx.save();\
		5131	ctx.globalAlpha = 1.0;\
		5132	var bar_x = new Array();\
		5133	var bar_y = new Array();\
		5134	var lb = barchart%d.length;\
		5135	var idx = 0;\
		5136	for( var p = 0 ; p < lb ; p = p + 3 ){\
		5137	bar_x[idx] = x2px(barchart%d[p]);\
		5138	bar_y[idx] = y2px(barchart%d[p+1]);\
		5139	barcolor[idx] = barchart%d[p+2];\
		5140	idx++;\
		5141	};\
		5142	var dx = parseInt(0.6*xstep);\
		5143	ctx.globalAlpha = fill_opacity;\
		5144	for( var p = 0; p < idx ; p++ ){\
		5145	ctx.beginPath();\
		5146	ctx.strokeStyle = barcolor[p];\
		5147	ctx.fillStyle = barcolor[p];\
		5148	ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
		5149	ctx.fill();\
		5150	ctx.stroke();\
		5151	ctx.closePath();\
		5152	};\
		5153	};\
		5154	if( typeof legend%d !== 'undefined' ){\
		5155	ctx.globalAlpha = 1.0;\
		5156	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		5157	var y_offset = 2*font_size;\
		5158	var txt;var txt_size;\
		5159	var x_offset = xsize - 2*font_size;\
		5160	var l_length = legend%d.length;\
		5161	if( typeof legendcolors%d !== 'undefined' ){\
		5162	for(var p = 0 ; p < l_length ; p++){\
		5163	barcolor[p] = legendcolors%d[p];\
		5164	};\
		5165	}else{\
		5166	if( barcolor.length == 0 ){\
		5167	for(var p = 0 ; p < l_length ; p++){\
		5168	barcolor[p] = stroke_color;\
		5169	};\
		5170	};\
		5171	};\
		5172	for(var p = 0; p < l_length; p++){\
		5173	ctx.fillStyle = barcolor[p];\
		5174	txt = legend%d[p];\
		5175	txt_size = ctx.measureText(txt).width;\
		5176	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		5177	y_offset = parseInt(y_offset + 1.5*font_size);\
		5178	};\
		5179	};\
		5180	ctx.restore();\
		5181	return;\
7653	schaersvoo	5182	};",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	5183	break;
		5184
		5185	case DRAW_PIECHART:
		5186	fprintf(js_include_file,"\n<!-- draw piechars -->\n\
		5187	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
		5188	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5189	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5190	}\
		5191	else\
		5192	{\
		5193	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5194	};\
		5195	var ld = data_color_list.length;\
		5196	var sum = 0;\
		5197	var idx = 0;\
		5198	var colors = new Array();\
		5199	var data = new Array();\
		5200	for(var p = 0;p < ld; p = p + 2){\
		5201	data[idx] = parseFloat(data_color_list[p]);\
		5202	sum = sum + data[idx];\
		5203	colors[idx] = data_color_list[p+1];\
		5204	idx++;\
		5205	};\
		5206	var ctx = obj.getContext(\"2d\");\
		5207	ctx.save();\
		5208	var angle;\
		5209	var angle_end = 0;\
		5210	var offset = Math.PI / 2;\
		5211	ctx.globalAlpha = fill_opacity;\
		5212	for(var p=0; p < idx; p++){\
		5213	ctx.beginPath();\
		5214	ctx.fillStyle = colors[p];\
		5215	ctx.moveTo(x_center,y_center);\
		5216	angle = Math.PI * (2 * data[p] / sum);\
		5217	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		5218	ctx.lineTo(x_center, y_center);\
		5219	ctx.fill();\
		5220	ctx.closePath();\
		5221	angle_end = angle_end + angle;\
		5222	};\
		5223	if( typeof legend%d !== 'undefined' ){\
		5224	ctx.globalAlpha = 1.0;\
		5225	ctx.font = font_size+\"px \"+font_family;\
		5226	var y_offset = font_size; \
		5227	var x_offset = 0;\
		5228	var txt;var txt_size;\
		5229	for(var p = 0; p < idx; p++){\
		5230	ctx.fillStyle = colors[p];\
		5231	txt = legend%d[p];\
		5232	txt_size = ctx.measureText(txt).width;\
		5233	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
		5234	ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
		5235	y_offset = parseInt(y_offset + 1.5*font_size);\
		5236	};\
		5237	};\
		5238	ctx.restore();\
7653	schaersvoo	5239	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5240
		5241	break;
		5242	case DRAW_ARCS:
		5243	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
		5244	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){\
		5245	var obj;\
		5246	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5247	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5248	}\
		5249	else\
		5250	{\
		5251	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5252	};\
		5253	var ctx = obj.getContext(\"2d\");\
		5254	ctx.save();\
		5255	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
		5256	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		5257	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		5258	if(end < start){var tmp = end;end = start;start=tmp;};\
		5259	start=360-start;\
		5260	end=360-end;\
		5261	ctx.lineWidth = line_width;\
		5262	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5263	if( use_filled == 1 ){\
		5264	ctx.beginPath();\
		5265	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		5266	var x1 = xc + rMath.cos(Math.PIstart/180);\
		5267	var y1 = yc + rMath.sin(Math.PIstart/180);\
		5268	var x2 = xc + rMath.cos(Math.PIend/180);\
		5269	var y2 = yc + rMath.sin(Math.PIend/180);\
		5270	ctx.beginPath();\
		5271	ctx.moveTo(x1,y1);\
		5272	ctx.lineTo(xc,yc);\
		5273	ctx.moveTo(xc,yc);\
		5274	ctx.lineTo(x2,y2);\
		5275	ctx.closePath();\
		5276	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5277	ctx.fill();\
		5278	ctx.stroke();\
		5279	}\
		5280	else\
		5281	{\
		5282	ctx.beginPath();\
		5283	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5284	ctx.stroke();\
		5285	ctx.closePath();\
		5286	}\
		5287	ctx.restore();\
7653	schaersvoo	5288	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5289
		5290	break;
		5291	case DRAW_TEXTS:
		5292	fprintf(js_include_file,"\n<!-- draw text -->\n\
		5293	draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
		5294	var obj;\
		5295	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5296	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5297	}\
		5298	else\
		5299	{\
		5300	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5301	};\
		5302	var ctx = obj.getContext(\"2d\");\
		5303	if(angle2 == 0 && angle != 0){\
		5304	ctx.save();\
		5305	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5306	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5307	};\
		5308	if( font_family.indexOf('px') != null ){\
		5309	ctx.font = font_family;\
		5310	}\
		5311	else\
		5312	{\
		5313	ctx.font = \"+font_size+'px '+font_family \";\
		5314	};\
		5315	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5316	if(angle2 != 0){\
		5317	ctx.save();\
		5318	ctx.translate(x,y);\
		5319	ctx.rotate((360-angle2)*(Math.PI / 180));\
		5320	ctx.fillText(text,0,0);\
		5321	ctx.restore();\
		5322	}else{ctx.fillText(text,x,y);};\
		5323	ctx.restore();\
		5324	return;\
7653	schaersvoo	5325	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5326
		5327	break;
		5328	case DRAW_CURVE:
		5329	fprintf(js_include_file,"\n<!-- draw curve -->\n\
		5330	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){\
		5331	var obj;\
		5332	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5333	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5334	}\
		5335	else\
		5336	{\
		5337	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5338	};\
		5339	var ctx = obj.getContext(\"2d\");\
		5340	ctx.save();\
		5341	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5342	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5343	ctx.beginPath();ctx.lineWidth = line_width;\
		5344	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5345	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5346	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		5347	for(var p = 1 ; p < x_points.length ; p++){\
		5348	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		5349	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		5350	}\
		5351	else\
		5352	{\
		5353	ctx.stroke();\
		5354	ctx.beginPath();\
		5355	p++;\
		5356	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		5357	};\
		5358	};\
		5359	ctx.stroke();\
		5360	ctx.restore();\
7653	schaersvoo	5361	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5362	break;
		5363
		5364	case DRAW_INPUTS:
		5365	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
		5366	draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
		5367	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5368	var input = document.createElement(\"input\");\
		5369	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5370	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5371	input.setAttribute(\"size\",size);\
		5372	input.setAttribute(\"value\",value);\
		5373	if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
7653	schaersvoo	5374	canvas_div.appendChild(input);};");
7614	schaersvoo	5375	break;
		5376
		5377	case DRAW_TEXTAREAS:
		5378	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
		5379	draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
		5380	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5381	var textarea = document.createElement(\"textarea\");\
		5382	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5383	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5384	textarea.setAttribute(\"cols\",cols);\
		5385	textarea.setAttribute(\"rows\",rows);\
		5386	textarea.innerHTML = value;\
7653	schaersvoo	5387	canvas_div.appendChild(textarea);};");
7614	schaersvoo	5388	break;
		5389
		5390	case DRAW_PIXELS:
		5391	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
		5392	draw_setpixel = function(x,y,color,opacity,pixelsize){\
		5393	var canvas = create_canvas%d(10,xsize,ysize);\
		5394	var d = 0.5*pixelsize;\
		5395	var ctx = canvas.getContext(\"2d\");\
		5396	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		5397	ctx.clearRect(0,0,xsize,ysize);\
		5398	for(var p=0; p<x.length;p++){\
		5399	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		5400	};\
		5401	ctx.fill();ctx.stroke();\
		5402	};",canvas_root_id);
		5403	break;
		5404
		5405	case DRAW_CLOCK:
		5406	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		5407	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		5408	var clock_ctx = clock_canvas.getContext(\"2d\");\
		5409	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
		5410	clock_ctx.save();\
		5411	this.type = type \|\| 0;\
		5412	this.interaction = interaction \|\| 0;\
		5413	this.H = H \|\| parseInt(110*(Math.random()));\
		5414	this.M = M \|\| parseInt(590*(Math.random()));\
		5415	this.S = S \|\| parseInt(590*(Math.random()));\
		5416	this.xc = xc \|\| xsize/2;\
		5417	this.yc = yc \|\| ysize/2;\
		5418	this.radius = radius \|\| xsize/4;\
		5419	var font_size = parseInt(0.2*this.radius);\
		5420	this.H_color = h_color \|\| \"blue\";\
		5421	this.M_color = m_color \|\| \"blue\";\
		5422	this.S_color = s_color \|\| \"blue\";\
		5423	this.fg_color = fg_color \|\| \"red\";\
		5424	this.bg_color = bg_color \|\| \"white\";\
		5425	clock_ctx.translate(this.xc,this.yc);\
		5426	clock_ctx.beginPath();\
		5427	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		5428	clock_ctx.fillStyle = this.bg_color;\
		5429	clock_ctx.fill();\
		5430	clock_ctx.closePath();\
		5431	clock_ctx.beginPath();\
		5432	clock_ctx.font = font_size+\"px Arial\";\
		5433	clock_ctx.fillStyle = this.fg_color;\
		5434	clock_ctx.textAlign = \"center\";\
		5435	clock_ctx.textBaseline = 'middle';\
		5436	var angle;var x1,y1,x2,y2;\
		5437	var angle_cos;var angle_sin;\
		5438	switch(type){\
		5439	case 0:clock_ctx.beginPath();\
		5440	for(var p = 1; p <= 12 ; p++){\
		5441	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5442	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5443	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5444	clock_ctx.moveTo(x1,y1);\
		5445	clock_ctx.lineTo(x2,y2);\
		5446	};\
		5447	for(var p = 1; p <= 60 ; p++){\
		5448	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5449	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5450	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5451	clock_ctx.moveTo(x1,y1);\
		5452	clock_ctx.lineTo(x2,y2);\
		5453	};\
		5454	clock_ctx.closePath();\
		5455	clock_ctx.stroke();\
		5456	break;\
		5457	case 1:\
		5458	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;\
		5459	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);};\
		5460	clock_ctx.beginPath();\
		5461	for(var p = 1; p <= 12 ; p++){\
		5462	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5463	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5464	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5465	clock_ctx.moveTo(x1,y1);\
		5466	clock_ctx.lineTo(x2,y2);\
		5467	};\
		5468	for(var p = 1; p <= 60 ; p++){\
		5469	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5470	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5471	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5472	clock_ctx.moveTo(x1,y1);\
		5473	clock_ctx.lineTo(x2,y2);\
		5474	};\
		5475	clock_ctx.closePath();\
		5476	clock_ctx.stroke();\
		5477	break;\
		5478	};\
		5479	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		5480	clock_ctx.rotate(angle);\
		5481	clock_ctx.beginPath();\
		5482	clock_ctx.moveTo(-3, -2);\
		5483	clock_ctx.lineTo(-3, 2);\
		5484	clock_ctx.lineTo(this.radius * 0.7, 1);\
		5485	clock_ctx.lineTo(this.radius * 0.7, -1);\
		5486	clock_ctx.fillStyle = this.H_color;\
		5487	clock_ctx.fill();\
		5488	clock_ctx.rotate(-angle);\
		5489	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		5490	clock_ctx.rotate(angle);\
		5491	clock_ctx.beginPath();\
		5492	clock_ctx.moveTo(-3, -2);\
		5493	clock_ctx.lineTo(-3, 2);\
		5494	clock_ctx.lineTo(this.radius * 0.8, 1);\
		5495	clock_ctx.lineTo(this.radius * 0.8, -1);\
		5496	clock_ctx.fillStyle = this.M_color;\
		5497	clock_ctx.fill();\
		5498	clock_ctx.rotate(-angle);\
		5499	angle = (this.S - 15) * 2 * Math.PI / 60;\
		5500	clock_ctx.rotate(angle);\
		5501	clock_ctx.beginPath();\
		5502	clock_ctx.moveTo(0,0);\
		5503	clock_ctx.lineTo(this.radius * 0.95, 0);\
		5504	clock_ctx.lineTo(this.radius * 0.9, -1);\
		5505	clock_ctx.strokeStyle = this.S_color;\
		5506	clock_ctx.stroke();\
		5507	clock_ctx.restore();\
7653	schaersvoo	5508	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	5509	break;
		5510
		5511	case DRAW_LATTICE:
		5512	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
		5513	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){\
		5514	var obj;\
		5515	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5516	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5517	}\
		5518	else\
		5519	{\
		5520	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5521	};\
		5522	var ctx = obj.getContext(\"2d\");\
		5523	ctx.save();\
		5524	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5525	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5526	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5527	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5528	var radius = line_width;\
		5529	var x = 0;\
		5530	var y = 0;\
		5531	var x_step_px = xsize/(xmax-xmin);\
		5532	var y_step_px = ysize/(ymax-ymin);\
		5533	var xv1 = dx1*x_step_px;\
		5534	var yv1 = dy1*y_step_px;\
		5535	var xv2 = dx2*x_step_px;\
		5536	var yv2 = dy2*y_step_px;\
		5537	for(var p = 0; p < n1 ;p++){\
		5538	x = p*xv1 + x0;\
		5539	y = p*yv1 + y0;\
		5540	for(var c = 0; c < n2 ; c++){\
		5541	ctx.beginPath();\
		5542	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		5543	ctx.fill();\
		5544	ctx.stroke();\
		5545	ctx.closePath();\
		5546	};\
		5547	};\
		5548	ctx.restore();\
		5549	return;\
7653	schaersvoo	5550	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5551	break;
7735	schaersvoo	5552	case DRAW_XYLOGSCALE:
		5553	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
7739	schaersvoo	5554	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	5555	var obj;\n\
		5556	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5557	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5558	}\n\
		5559	else\n\
		5560	{\n\
		5561	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5562	};\n\
		5563	var ctx = obj.getContext(\"2d\");\n\
		5564	ctx.clearRect(0,0,xsize,ysize);\
		5565	ctx.save();\n\
7739	schaersvoo	5566	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
		5567	var x_min = Math.log(xmin)/Math.log(xlogbase);\n\
		5568	var x_max = Math.log(xmax)/Math.log(xlogbase);\n\
		5569	var y_min = Math.log(ymin)/Math.log(ylogbase);\n\
		5570	var y_max = Math.log(ymax)/Math.log(ylogbase);\n\
		5571	if(use_axis_numbering == 1){\
		5572	ctx.font = font_family;\n\
		5573	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\n\
		5574	ymarge = parseInt(1.5*font_size);\n\
		5575	ctx.save();\n\
		5576	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5577	ctx.rect(0,0,xmarge,ysize);\n\
		5578	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5579	ctx.fill();\n\
		5580	ctx.restore();\n\
		5581	}else{xmarge = 0;ymarge = 0;};\n\
7735	schaersvoo	5582	if( typeof xaxislabel !== 'undefined' ){\
7739	schaersvoo	5583	ctx.save();\n\
		5584	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5585	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5586	corr = ctx.measureText(xaxislabel).width;\n\
		5587	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5588	ctx.restore();\n\
		5589	};\n\
7735	schaersvoo	5590	if( typeof yaxislabel !== 'undefined' ){\
7739	schaersvoo	5591	ctx.save();\n\
		5592	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5593	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5594	corr = ctx.measureText(yaxislabel).width;\n\
		5595	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5596	ctx.rotate(-0.5*Math.PI);\n\
		5597	ctx.fillText(yaxislabel,0,0);\n\
		5598	ctx.restore();\n\
		5599	};\n\
		5600	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5601	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5602	for(var p = x_min; p <= x_max ; p++){\n\
7739	schaersvoo	5603	num = Math.pow(xlogbase,p);\n\n\
7735	schaersvoo	5604	for(var i = 1 ; i < xlogbase ; i++){\n\
7739	schaersvoo	5605	x_e = x2px(i*num);\n\n\
7735	schaersvoo	5606	if( i == 1 ){\
7739	schaersvoo	5607	ctx.lineWidth = line_width;\n\n\
		5608	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\n\
7738	schaersvoo	5609	if( use_axis_numbering == 1 && p > x_min){\
7739	schaersvoo	5610	xtxt = xlogbase+'^'+p.toFixed(0);\n\
		5611	corr = 0.5*(ctx.measureText(xtxt).width);\n\
		5612	ctx.fillText(xtxt,x_e - corr,ysize - 4);\n\
		5613	};\n\
7735	schaersvoo	5614	}else{\
7739	schaersvoo	5615	ctx.lineWidth = 0.2*line_width;\n\n\
		5616	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5617	};\n\
7738	schaersvoo	5618	if( x_e >= xmarge ){\
		5619	ctx.beginPath();\n\
		5620	ctx.moveTo(x_e,0);\n\
7739	schaersvoo	5621	ctx.lineTo(x_e,ysize - ymarge);\n\n\
7738	schaersvoo	5622	ctx.stroke();\n\
		5623	ctx.closePath();\n\
		5624	};\
7735	schaersvoo	5625	};\n\
		5626	};\n\
		5627	for(var p = y_min; p <= y_max ; p++){\n\
		5628	num = Math.pow(ylogbase,p);\n\
		5629	for(var i = 1 ; i < ylogbase ; i++){\n\
		5630	y_e = y2px(i*num);\n\
7739	schaersvoo	5631	if( i == 1 ){\n\
7735	schaersvoo	5632	ctx.lineWidth = line_width;\n\
		5633	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5634	if( use_axis_numbering == 1 && p > y_min){\n\
		5635	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\n\
		5636	};\n\
		5637	}else{\n\
7735	schaersvoo	5638	ctx.lineWidth = 0.2*line_width;\n\
7739	schaersvoo	5639	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5640	};\n\
7735	schaersvoo	5641	ctx.beginPath();\n\
7738	schaersvoo	5642	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5643	ctx.lineTo(xsize,y_e);\n\
		5644	ctx.stroke();\n\
		5645	ctx.closePath();\n\
		5646	};\n\
		5647	};\n\
		5648	ctx.restore();\
		5649	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5650	break;
7614	schaersvoo	5651
7735	schaersvoo	5652	case DRAW_XLOGSCALE:
		5653	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
7739	schaersvoo	5654	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	5655	var obj;\n\
		5656	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5657	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5658	}\n\
		5659	else\n\
		5660	{\n\
		5661	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5662	};\n\
		5663	var ctx = obj.getContext(\"2d\");\n\
		5664	ctx.clearRect(0,0,xsize,ysize);\
		5665	ctx.save();\n\
		5666	ctx.lineWidth = line_width;\n\
7739	schaersvoo	5667	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	5668	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		5669	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		5670	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	5671	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		5672	if(use_axis_numbering == 1){\
		5673	ctx.font = font_family;\n\
		5674	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\n\
		5675	ymarge = parseInt(1.5*font_size);\n\
		5676	ctx.save();\n\
		5677	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5678	ctx.rect(0,0,xmarge,ysize);\n\
		5679	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5680	ctx.fill();\n\
		5681	ctx.restore();\n\
		5682	}else{xmarge = 0;ymarge = 0;};\n\
		5683	if( typeof xaxislabel !== 'undefined' ){\
		5684	ctx.save();\n\
		5685	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5686	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5687	corr = ctx.measureText(xaxislabel).width;\n\
		5688	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5689	ctx.restore();\n\
		5690	};\n\
		5691	if( typeof yaxislabel !== 'undefined' ){\
		5692	ctx.save();\n\
		5693	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5694	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5695	corr = ctx.measureText(yaxislabel).width;\n\
		5696	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5697	ctx.rotate(-0.5*Math.PI);\n\
		5698	ctx.fillText(yaxislabel,0,0);\n\
		5699	ctx.restore();\n\
		5700	};\n\
		5701	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5702	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5703	for(var p = x_min; p <= x_max ; p++){\n\
		5704	num = Math.pow(xlogbase,p);\n\
		5705	for(var i = 1 ; i < xlogbase ; i++){\n\
		5706	x_e = x2px(i*num);\n\
		5707	if( i == 1 ){\
7739	schaersvoo	5708	ctx.lineWidth = line_width;\n\
		5709	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5710	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	5711	xtxt = xlogbase+'^'+p.toFixed(0);\
		5712	corr = 0.5*(ctx.measureText(xtxt).width);\
		5713	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		5714	};\
		5715	}else{\
		5716	ctx.lineWidth = 0.2*line_width;\n\
		5717	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5718	};\
7739	schaersvoo	5719	if( x_e >= xmarge ){\
		5720	ctx.beginPath();\n\
		5721	ctx.moveTo(x_e,0);\n\
		5722	ctx.lineTo(x_e,ysize - ymarge);\n\n\
		5723	ctx.stroke();\n\
		5724	ctx.closePath();\n\
		5725	};\
		5726	};\
7735	schaersvoo	5727	};\n\
		5728	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		5729	var minor_step = stepy / yminor;\
7749	schaersvoo	5730	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	5731	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5732	ctx.lineWidth = line_width;\n\
		5733	ctx.beginPath();\n\
7739	schaersvoo	5734	ctx.moveTo(xmarge,y);\n\
7735	schaersvoo	5735	ctx.lineTo(xsize,y);\n\
		5736	ctx.stroke();\n\
		5737	ctx.closePath();\n\
		5738	if( use_axis_numbering == 1){\
		5739	ytxt = (px2y(y)).toFixed(prec);\
		5740	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		5741	};\
		5742	for(var dy = 1 ; dy < yminor ; dy++){\
		5743	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5744	ctx.lineWidth = 0.2*line_width;\n\
		5745	ctx.beginPath();\n\
7739	schaersvoo	5746	ctx.moveTo(xmarge,y+dy*minor_step);\
7735	schaersvoo	5747	ctx.lineTo(xsize,y+dy*minor_step);\n\
		5748	ctx.stroke();\n\
		5749	ctx.closePath();\n\
		5750	};\
		5751	};\
		5752	ctx.restore();\n\
		5753	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5754	break;
7729	schaersvoo	5755	case DRAW_YLOGSCALE:
		5756	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
7739	schaersvoo	5757	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	5758	var obj;\n\
		5759	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5760	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5761	}\n\
		5762	else\n\
		5763	{\n\
		5764	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5765	};\n\
		5766	var ctx = obj.getContext(\"2d\");\n\
		5767	ctx.clearRect(0,0,xsize,ysize);\
		5768	ctx.save();\n\
		5769	ctx.lineWidth = line_width;\n\
7735	schaersvoo	5770	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		5771	var y_max = Math.log(ymax)/Math.log(ylogbase);\
		5772	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;\
7739	schaersvoo	5773	if(use_axis_numbering == 1){\
		5774	ctx.font = font_family;\n\
		5775	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\n\
		5776	ymarge = 2*font_size;\n\
		5777	ctx.save();\n\
		5778	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5779	ctx.rect(0,0,xmarge,ysize);\n\
		5780	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5781	ctx.fill();\n\
		5782	ctx.restore();\n\
		5783	}else{xmarge = 0;ymarge = 0;};\n\
		5784	if( typeof xaxislabel !== 'undefined' ){\
		5785	ctx.save();\n\
		5786	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5787	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5788	corr = ctx.measureText(xaxislabel).width;\n\
		5789	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5790	ctx.restore();\n\
		5791	};\n\
		5792	if( typeof yaxislabel !== 'undefined' ){\
		5793	ctx.save();\n\
		5794	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5795	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5796	corr = ctx.measureText(yaxislabel).width;\n\
		5797	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5798	ctx.rotate(-0.5*Math.PI);\n\
		5799	ctx.fillText(yaxislabel,0,0);\n\
		5800	ctx.restore();\n\
		5801	};\n\
		5802	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5803	ctx.lineWidth = line_width;\n\n\
7729	schaersvoo	5804	for(var p = y_min; p <= y_max ; p++){\n\
7735	schaersvoo	5805	num = Math.pow(ylogbase,p);\n\
		5806	for(var i = 1 ; i < ylogbase ; i++){\n\
7729	schaersvoo	5807	y_e = y2px(i*num);\n\
		5808	if( i == 1 ){\
		5809	ctx.lineWidth = line_width;\n\
		5810	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5811	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	5812	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	5813	};\
		5814	}else{\
		5815	ctx.lineWidth = 0.2*line_width;\n\
		5816	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5817	};\
		5818	ctx.beginPath();\n\
7739	schaersvoo	5819	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5820	ctx.lineTo(xsize,y_e);\n\
7729	schaersvoo	5821	ctx.stroke();\n\
		5822	ctx.closePath();\n\
		5823	};\n\
		5824	};\n\
		5825	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		5826	var minor_step = stepx / xminor;\
		5827	var prec = Math.log(precision)/Math.log(10);\
		5828	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	5829	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	5830	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5831	ctx.lineWidth = line_width;\n\
		5832	ctx.beginPath();\n\
7739	schaersvoo	5833	ctx.moveTo(x,ysize-ymarge);\n\
7729	schaersvoo	5834	ctx.lineTo(x,0);\n\
		5835	ctx.stroke();\n\
		5836	ctx.closePath();\n\
		5837	if( use_axis_numbering == 1){\
		5838	xtxt = (px2x(x)).toFixed(prec);\
		5839	corr = 0.5*(ctx.measureText(xtxt).width);\
		5840	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		5841	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		5842	};\
		5843	for(var dx = 1 ; dx < xminor ; dx++){\
		5844	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5845	ctx.lineWidth = 0.2*line_width;\n\
		5846	ctx.beginPath();\n\
7739	schaersvoo	5847	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7729	schaersvoo	5848	ctx.lineTo(x+dx*minor_step,0);\n\
		5849	ctx.stroke();\n\
		5850	ctx.closePath();\n\
7735	schaersvoo	5851	};\
		5852	};\
7729	schaersvoo	5853	ctx.restore();\n\
		5854	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5855
		5856	break;
7735	schaersvoo	5857
		5858
7614	schaersvoo	5859	default:break;
		5860	}
		5861	}
		5862	}
		5863	return;
		5864	}
		5865
		5866	void check_string_length(int L){
		5867	if(L<1 \|\| L > MAX_BUFFER-1){
		5868	canvas_error("problem with your arguments to command...");
		5869	}
		5870	return;
		5871	}
		5872
		5873
		5874	int get_token(FILE *infile){
		5875	int c,i=0;
		5876	char temp[MAX_INT], *input_type;
		5877	char *line="line",
		5878	*audio="audio",
		5879	*blink="blink",
		5880	*arrowhead="arrowhead",
		5881	*crosshairsize="crosshairsize",
		5882	*crosshair="crosshair",
		5883	*crosshairs="crosshairs",
		5884	*audioobject="audioobject",
		5885	*style="style",
		5886	*mouse="mouse",
		5887	*userdraw="userdraw",
		5888	*highlight="highlight",
		5889	*http="http",
		5890	*rays="rays",
		5891	*dashtype="dashtype",
		5892	*dashed="dashed",
		5893	*filled="filled",
		5894	*lattice="lattice",
		5895	*parallel="parallel",
		5896	*segment="segment",
		5897	*dsegment="dsegment",
		5898	*seg="seg",
		5899	*bgimage="bgimage",
		5900	*bgcolor="bgcolor",
		5901	*strokecolor="strokecolor",
		5902	*backgroundimage="backgroundimage",
		5903	*text="text",
		5904	*textup="textup",
		5905	*mouseprecision="mouseprecision",
		5906	*precision="precision",
		5907	*plotsteps="plotsteps",
		5908	*plotstep="plotstep",
		5909	*tsteps="tsteps",
		5910	*curve="curve",
		5911	*dcurve="dcurve",
		5912	*plot="plot",
		5913	*dplot="dplot",
		5914	*fontsize="fontsize",
		5915	*fontcolor="fontcolor",
		5916	*axis="axis",
		5917	*axisnumbering="axisnumbering",
		5918	*axisnumbers="axisnumbers",
		5919	*arrow="arrow",
		5920	*darrow="darrow",
		5921	*arrow2="arrow2",
		5922	*darrow2="darrow2",
		5923	*zoom="zoom",
		5924	*grid="grid",
		5925	*hline="hline",
		5926	*drag="drag",
		5927	*horizontalline="horizontalline",
		5928	*vline="vline",
		5929	*verticalline="verticalline",
		5930	*triangle="triangle",
		5931	*ftriangle="ftriangle",
		5932	*mathml="mathml",
		5933	*html="html",
		5934	*input="input",
		5935	*button="button",
		5936	*inputstyle="inputstyle",
		5937	*textarea="textarea",
		5938	*trange="trange",
		5939	*ranget="ranget",
		5940	*xrange="xrange",
		5941	*yrange="yrange",
		5942	*rangex="rangex",
		5943	*rangey="rangey",
		5944	*polyline="polyline",
		5945	*lines="lines",
		5946	*poly="poly",
		5947	*polygon="polygon",
		5948	*fpolygon="fpolygon",
		5949	*fpoly="fpoly",
		5950	*filledpoly="filledpoly",
		5951	*filledpolygon="filledpolygon",
		5952	*rect="rect",
		5953	*frect="frect",
		5954	*rectangle="rectangle",
		5955	*frectangle="frectangle",
		5956	*square="square",
		5957	*fsquare="fsquare",
		5958	*dline="dline",
		5959	*arc="arc",
		5960	*filledarc="filledarc",
		5961	*size="size",
		5962	*string="string",
		5963	*stringup="stringup",
		5964	*copy="copy",
		5965	*copyresized="copyresized",
		5966	*opacity="opacity",
		5967	*transparent="transparent",
		5968	*fill="fill",
		5969	*slider="slider",
		5970	*point="point",
		5971	*points="points",
		5972	*linewidth="linewidth",
		5973	*circle="circle",
		5974	*fcircle="fcircle",
		5975	*disk="disk",
		5976	*comment="#",
		5977	*end="end",
		5978	*ellipse="ellipse",
		5979	*fellipse="fellipse",
		5980	*rotate="rotate",
		5981	*fontfamily="fontfamily",
		5982	*fillcolor="fillcolor",
		5983	*clicktile="clicktile",
		5984	*clicktile_colors="clicktile_colors",
		5985	*translation="translation",
		5986	*translate="translate",
		5987	*killtranslation="killtranslation",
		5988	*killtranslate="killtranslate",
		5989	*onclick="onclick",
		5990	*roundrect="roundrect",
		5991	*froundrect="froundrect",
		5992	*roundrectangle="roundrectangle",
		5993	*patternfill="patternfill",
		5994	*hatchfill="hatchfill",
		5995	*diafill="diafill",
7647	schaersvoo	5996	*diamondfill="diamondfill",
7614	schaersvoo	5997	*dotfill="dotfill",
		5998	*gridfill="gridfill",
		5999	*imagefill="imagefill",
7735	schaersvoo	6000	*xlogbase="xlogbase",
		6001	*ylogbase="ylogbase",
7614	schaersvoo	6002	*xlogscale="xlogscale",
		6003	*ylogscale="ylogscale",
		6004	*xylogscale="xylogscale",
		6005	*intooltip="intooltip",
		6006	*replyformat="replyformat",
		6007	*floodfill="floodfill",
		6008	*filltoborder="filltoborder",
		6009	*clickfill="clickfill",
		6010	*debug="debug",
		6011	*setpixel="setpixel",
		6012	*pixels="pixels",
		6013	*pixelsize="pixelsize",
		6014	*clickfillmarge="clickfillmarge",
		6015	*xaxis="xaxis",
		6016	*yaxis="yaxis",
		6017	*xaxistext="xaxistext",
		6018	*yaxistext="yaxistext",
		6019	*piechart="piechart",
		6020	*legend="legend",
		6021	*legendcolors="legendcolors",
		6022	*xlabel="xlabel",
		6023	*ylabel="ylabel",
		6024	*barchart="barchart",
		6025	*linegraph="linegraph",
		6026	*clock="clock",
		6027	*animate="animate",
		6028	*video="video",
		6029	*status="status",
7652	schaersvoo	6030	*snaptogrid="snaptogrid",
7654	schaersvoo	6031	*userinput_xy="userinput_xy",
7663	schaersvoo	6032	*usertextarea_xy="usertextarea_xy",
7654	schaersvoo	6033	*sgraph="sgraph";
7614	schaersvoo	6034
		6035	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
		6036	if( i == 0 && (c == ' ' \|\| c == '\t') ){
		6037	continue; /* white spaces or tabs allowed before first command identifier */
		6038	}
		6039	else
		6040	{
		6041	if( c == ' ' \|\| c == '\t' ){
		6042	break;
		6043	}
		6044	else
		6045	{
		6046	temp[i] = c;
		6047	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		6048	i++;
		6049	}
		6050	}
		6051	if(temp[0] == '#') break;
		6052	}
		6053	if (c == EOF) finished = 1;
		6054
		6055	if (c == '\n' \|\| c == '\r') {
		6056	line_number++;
		6057	if (i == 0) { return EMPTY; }
		6058	} else if (c == EOF) {
		6059	return 0;
		6060	}
		6061
		6062	temp[i]='\0';
		6063	input_type=(char*)my_newmem(strlen(temp));
		6064	snprintf(input_type,sizeof(temp),"%s",temp);
		6065
		6066	if( strcmp(input_type, size) == 0 ){
		6067	free(input_type);
		6068	return SIZE;
		6069	}
		6070	if( strcmp(input_type, xrange) == 0 ){
		6071	free(input_type);
		6072	return XRANGE;
		6073	}
		6074	if( strcmp(input_type, rangex) == 0 ){
		6075	free(input_type);
		6076	return XRANGE;
		6077	}
		6078	if( strcmp(input_type, trange) == 0 ){
		6079	free(input_type);
		6080	return TRANGE;
		6081	}
		6082	if( strcmp(input_type, ranget) == 0 ){
		6083	free(input_type);
		6084	return TRANGE;
		6085	}
		6086	if( strcmp(input_type, yrange) == 0 ){
		6087	free(input_type);
		6088	return YRANGE;
		6089	}
		6090	if( strcmp(input_type, rangey) == 0 ){
		6091	free(input_type);
		6092	return YRANGE;
		6093	}
		6094	if( strcmp(input_type, linewidth) == 0 ){
		6095	free(input_type);
		6096	return LINEWIDTH;
		6097	}
		6098	if( strcmp(input_type, dashed) == 0 ){
		6099	free(input_type);
		6100	return DASHED;
		6101	}
		6102	if( strcmp(input_type, dashtype) == 0 ){
		6103	free(input_type);
		6104	return DASHTYPE;
		6105	}
		6106	if( strcmp(input_type, axisnumbering) == 0 ){
		6107	free(input_type);
		6108	return AXIS_NUMBERING;
		6109	}
		6110	if( strcmp(input_type, axisnumbers) == 0 ){
		6111	free(input_type);
		6112	return AXIS_NUMBERING;
		6113	}
		6114	if( strcmp(input_type, axis) == 0 ){
		6115	free(input_type);
		6116	return AXIS;
		6117	}
		6118	if( strcmp(input_type, grid) == 0 ){
		6119	free(input_type);
		6120	return GRID;
		6121	}
		6122	if( strcmp(input_type, parallel) == 0 ){
		6123	free(input_type);
		6124	return PARALLEL;
		6125	}
		6126	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
		6127	free(input_type);
		6128	return HLINE;
		6129	}
		6130	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		6131	free(input_type);
		6132	return VLINE;
		6133	}
		6134	if( strcmp(input_type, line) == 0 ){
		6135	free(input_type);
		6136	return LINE;
		6137	}
		6138	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		6139	free(input_type);
		6140	return SEGMENT;
		6141	}
		6142	if( strcmp(input_type, dsegment) == 0 ){
		6143	free(input_type);
		6144	use_dashed = TRUE;
		6145	return SEGMENT;
		6146	}
		6147	if( strcmp(input_type, crosshairsize) == 0 ){
		6148	free(input_type);
		6149	return CROSSHAIRSIZE;
		6150	}
		6151	if( strcmp(input_type, arrowhead) == 0 ){
		6152	free(input_type);
		6153	return ARROWHEAD;
		6154	}
		6155	if( strcmp(input_type, crosshairs) == 0 ){
		6156	free(input_type);
		6157	return CROSSHAIRS;
		6158	}
		6159	if( strcmp(input_type, crosshair) == 0 ){
		6160	free(input_type);
		6161	return CROSSHAIR;
		6162	}
		6163	if( strcmp(input_type, onclick) == 0 ){
		6164	free(input_type);
		6165	return ONCLICK;
		6166	}
		6167	if( strcmp(input_type, drag) == 0 ){
		6168	free(input_type);
		6169	return DRAG;
		6170	}
		6171	if( strcmp(input_type, userdraw) == 0 ){
		6172	free(input_type);
		6173	return USERDRAW;
		6174	}
		6175	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		6176	free(input_type);
		6177	return STYLE;
		6178	}
		6179	if( strcmp(input_type, fillcolor) == 0 ){
		6180	free(input_type);
		6181	return FILLCOLOR;
		6182	}
		6183	if( strcmp(input_type, strokecolor) == 0 ){
		6184	free(input_type);
		6185	return STROKECOLOR;
		6186	}
		6187	if( strcmp(input_type, filled) == 0 ){
		6188	free(input_type);
		6189	return FILLED;
		6190	}
		6191	if( strcmp(input_type, http) == 0 ){
		6192	free(input_type);
		6193	return HTTP;
		6194	}
		6195	if( strcmp(input_type, rays) == 0 ){
		6196	free(input_type);
		6197	return RAYS;
		6198	}
		6199	if( strcmp(input_type, lattice) == 0 ){
		6200	free(input_type);
		6201	return LATTICE;
		6202	}
		6203	if( strcmp(input_type, bgimage) == 0 ){
		6204	free(input_type);
		6205	return BGIMAGE;
		6206	}
		6207	if( strcmp(input_type, bgcolor) == 0 ){
		6208	free(input_type);
		6209	return BGCOLOR;
		6210	}
		6211	if( strcmp(input_type, backgroundimage) == 0 ){
		6212	free(input_type);
		6213	return BGIMAGE;
		6214	}
		6215	if( strcmp(input_type, text) == 0 ){
		6216	free(input_type);
		6217	return FLY_TEXT;
		6218	}
		6219	if( strcmp(input_type, textup) == 0 ){
		6220	free(input_type);
		6221	return FLY_TEXTUP;
		6222	}
		6223	if( strcmp(input_type, mouse) == 0 ){
		6224	free(input_type);
		6225	return MOUSE;
		6226	}
		6227	if( strcmp(input_type, mouseprecision) == 0 ){
		6228	free(input_type);
		6229	return MOUSE_PRECISION;
		6230	}
		6231	if( strcmp(input_type, precision) == 0 ){
		6232	free(input_type);
		6233	return MOUSE_PRECISION;
		6234	}
		6235	if( strcmp(input_type, curve) == 0 ){
		6236	free(input_type);
		6237	return CURVE;
		6238	}
		6239	if( strcmp(input_type, dcurve) == 0 ){
		6240	free(input_type);
		6241	return CURVE;
		6242	}
		6243	if( strcmp(input_type, plot) == 0 ){
		6244	free(input_type);
		6245	return CURVE;
		6246	}
		6247	if( strcmp(input_type, dplot) == 0 ){
		6248	free(input_type);
		6249	return CURVE;
		6250	}
		6251	if( strcmp(input_type, plotsteps) == 0 ){
		6252	free(input_type);
		6253	return PLOTSTEPS;
		6254	}
		6255	if( strcmp(input_type, plotstep) == 0 ){
		6256	free(input_type);
		6257	return PLOTSTEPS;
		6258	}
		6259	if( strcmp(input_type, tsteps) == 0 ){
		6260	free(input_type);
		6261	return PLOTSTEPS;
		6262	}
		6263	if( strcmp(input_type, fontsize) == 0 ){
		6264	free(input_type);
		6265	return FONTSIZE;
		6266	}
		6267	if( strcmp(input_type, fontcolor) == 0 ){
		6268	free(input_type);
		6269	return FONTCOLOR;
		6270	}
		6271	if( strcmp(input_type, arrow) == 0 ){
		6272	free(input_type);
		6273	return ARROW;
		6274	}
		6275	if( strcmp(input_type, arrow2) == 0 ){
		6276	free(input_type);
		6277	return ARROW2;
		6278	}
		6279	if( strcmp(input_type, darrow) == 0 ){
		6280	free(input_type);
		6281	return ARROW;
		6282	}
		6283	if( strcmp(input_type, darrow2) == 0 ){
		6284	free(input_type);
		6285	use_dashed = TRUE;
		6286	return ARROW2;
		6287	}
		6288	if( strcmp(input_type, zoom) == 0 ){
		6289	free(input_type);
		6290	return ZOOM;
		6291	}
		6292	if( strcmp(input_type, triangle) == 0 ){
		6293	free(input_type);
		6294	return TRIANGLE;
		6295	}
		6296	if( strcmp(input_type, ftriangle) == 0 ){
		6297	free(input_type);
		6298	use_filled = TRUE;
		6299	return TRIANGLE;
		6300	}
		6301	if( strcmp(input_type, input) == 0 ){
		6302	free(input_type);
		6303	return INPUT;
		6304	}
		6305	if( strcmp(input_type, inputstyle) == 0 ){
		6306	free(input_type);
		6307	return INPUTSTYLE;
		6308	}
		6309	if( strcmp(input_type, textarea) == 0 ){
		6310	free(input_type);
		6311	return TEXTAREA;
		6312	}
		6313	if( strcmp(input_type, mathml) == 0 ){
		6314	free(input_type);
		6315	return MATHML;
		6316	}
		6317	if( strcmp(input_type, html) == 0 ){
		6318	free(input_type);
		6319	return MATHML;
		6320	}
		6321	if( strcmp(input_type, fontfamily) == 0 ){
		6322	free(input_type);
		6323	return FONTFAMILY;
		6324	}
		6325	if( strcmp(input_type, lines) == 0 \|\| strcmp(input_type, polyline) == 0 ){
		6326	free(input_type);
		6327	return POLYLINE;
		6328	}
		6329	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		6330	free(input_type);
		6331	return RECT;
		6332	}
		6333	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		6334	free(input_type);
		6335	return ROUNDRECT;
		6336	}
		6337	if( strcmp(input_type, froundrect) == 0 ){
		6338	free(input_type);
		6339	use_filled = TRUE;
		6340	return ROUNDRECT;
		6341	}
		6342	if( strcmp(input_type, square) == 0 ){
		6343	free(input_type);
		6344	return SQUARE;
		6345	}
		6346	if( strcmp(input_type, fsquare) == 0 ){
		6347	free(input_type);
		6348	use_filled = TRUE;
		6349	return SQUARE;
		6350	}
		6351	if( strcmp(input_type, dline) == 0 ){
		6352	use_dashed = TRUE;
		6353	free(input_type);
		6354	return LINE;
		6355	}
		6356	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		6357	use_filled = TRUE;
		6358	free(input_type);
		6359	return RECT;
		6360	}
		6361	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		6362	use_filled = TRUE;
		6363	free(input_type);
		6364	return CIRCLE;
		6365	}
		6366	if( strcmp(input_type, circle) == 0 ){
		6367	free(input_type);
		6368	return CIRCLE;
		6369	}
		6370	if( strcmp(input_type, point) == 0 ){
		6371	free(input_type);
		6372	return POINT;
		6373	}
		6374	if( strcmp(input_type, points) == 0 ){
		6375	free(input_type);
		6376	return POINTS;
		6377	}
		6378	if( strcmp(input_type, filledarc) == 0 ){
		6379	use_filled = TRUE;
		6380	free(input_type);
		6381	return ARC;
		6382	}
		6383	if( strcmp(input_type, arc) == 0 ){
		6384	free(input_type);
		6385	return ARC;
		6386	}
		6387	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		6388	free(input_type);
		6389	return POLY;
		6390	}
		6391	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		6392	use_filled = TRUE;
		6393	free(input_type);
		6394	return POLY;
		6395	}
		6396	if( strcmp(input_type, ellipse) == 0){
		6397	free(input_type);
		6398	return ELLIPSE;
		6399	}
		6400	if( strcmp(input_type, fill) == 0 ){
		6401	free(input_type);
		6402	return FLOODFILL;
		6403	}
		6404	if( strcmp(input_type, string) == 0 ){
		6405	free(input_type);
		6406	return STRING;
		6407	}
		6408	if( strcmp(input_type, stringup) == 0 ){
		6409	free(input_type);
		6410	return STRINGUP;
		6411	}
		6412	if( strcmp(input_type, opacity) == 0 ){
		6413	free(input_type);
		6414	return OPACITY;
		6415	}
		6416	if( strcmp(input_type, comment) == 0){
		6417	free(input_type);
		6418	return COMMENT;
		6419	}
		6420	if( strcmp(input_type, end) == 0){
		6421	free(input_type);
		6422	return END;
		6423	}
		6424	if( strcmp(input_type, fellipse) == 0){
		6425	free(input_type);
		6426	use_filled = TRUE;
		6427	return ELLIPSE;
		6428	}
		6429	if( strcmp(input_type, blink) == 0 ){
		6430	free(input_type);
		6431	return BLINK;
		6432	}
		6433	if( strcmp(input_type, button) == 0){
		6434	free(input_type);
		6435	return BUTTON;
		6436	}
		6437	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		6438	free(input_type);
		6439	return TRANSLATION;
		6440	}
		6441	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		6442	free(input_type);
		6443	return KILLTRANSLATION;
		6444	}
		6445	if( strcmp(input_type, rotate) == 0){
		6446	free(input_type);
		6447	return ROTATE;
		6448	}
		6449	if( strcmp(input_type, audio) == 0 ){
		6450	free(input_type);
		6451	return AUDIO;
		6452	}
		6453	if( strcmp(input_type, audioobject) == 0 ){
		6454	free(input_type);
		6455	return AUDIOOBJECT;
		6456	}
		6457	if( strcmp(input_type, slider) == 0 ){
		6458	free(input_type);
		6459	return SLIDER;
		6460	}
		6461	if( strcmp(input_type, copy) == 0 ){
		6462	free(input_type);
		6463	return COPY;
		6464	}
		6465	if( strcmp(input_type, copyresized) == 0 ){
		6466	free(input_type);
		6467	return COPYRESIZED;
		6468	}
		6469	if( strcmp(input_type, patternfill) == 0 ){
		6470	free(input_type);
		6471	return PATTERNFILL;
		6472	}
		6473	if( strcmp(input_type, hatchfill) == 0 ){
		6474	free(input_type);
		6475	return HATCHFILL;
		6476	}
7647	schaersvoo	6477	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
7614	schaersvoo	6478	free(input_type);
7647	schaersvoo	6479	return DIAMONDFILL;
7614	schaersvoo	6480	}
		6481	if( strcmp(input_type, dotfill) == 0 ){
		6482	free(input_type);
		6483	return DOTFILL;
		6484	}
		6485	if( strcmp(input_type, gridfill) == 0 ){
		6486	free(input_type);
		6487	return GRIDFILL;
		6488	}
		6489	if( strcmp(input_type, imagefill) == 0 ){
		6490	free(input_type);
		6491	return IMAGEFILL;
		6492	}
		6493	if( strcmp(input_type, clicktile_colors) == 0 ){
		6494	free(input_type);
		6495	return CLICKTILE_COLORS;
		6496	}
		6497	if( strcmp(input_type, clicktile) == 0 ){
		6498	free(input_type);
		6499	return CLICKTILE;
		6500	}
		6501	if( strcmp(input_type, xlogscale) == 0 ){
		6502	free(input_type);
		6503	return XLOGSCALE;
		6504	}
		6505	if( strcmp(input_type, ylogscale) == 0 ){
		6506	free(input_type);
		6507	return YLOGSCALE;
		6508	}
		6509	if( strcmp(input_type, xylogscale) == 0 ){
		6510	free(input_type);
		6511	return XYLOGSCALE;
		6512	}
		6513	if( strcmp(input_type, ylogscale) == 0 ){
		6514	free(input_type);
		6515	return YLOGSCALE;
		6516	}
7735	schaersvoo	6517	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	6518	free(input_type);
7735	schaersvoo	6519	return XLOGBASE;
7614	schaersvoo	6520	}
7735	schaersvoo	6521	if( strcmp(input_type, ylogbase) == 0 ){
		6522	free(input_type);
		6523	return YLOGBASE;
		6524	}
7614	schaersvoo	6525	if( strcmp(input_type, intooltip) == 0 ){
		6526	free(input_type);
		6527	return INTOOLTIP;
		6528	}
		6529	if( strcmp(input_type,video) == 0 ){
		6530	free(input_type);
		6531	return VIDEO;
		6532	}
		6533	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		6534	free(input_type);
		6535	return FLOODFILL;
		6536	}
		6537	if( strcmp(input_type,filltoborder) == 0 ){
		6538	free(input_type);
		6539	return FILLTOBORDER;
		6540	}
		6541	if( strcmp(input_type,clickfill) == 0 ){
		6542	free(input_type);
		6543	return CLICKFILL;
		6544	}
		6545	if( strcmp(input_type, replyformat) == 0 ){
		6546	free(input_type);
		6547	return REPLYFORMAT;
		6548	}
		6549	if( strcmp(input_type, debug) == 0 ){
		6550	free(input_type);
		6551	return DEBUG;
		6552	}
		6553	if( strcmp(input_type, pixelsize) == 0 ){
		6554	free(input_type);
		6555	return PIXELSIZE;
		6556	}
		6557	if( strcmp(input_type, setpixel) == 0 ){
		6558	free(input_type);
		6559	return SETPIXEL;
		6560	}
		6561	if( strcmp(input_type, pixels) == 0 ){
		6562	free(input_type);
		6563	return PIXELS;
		6564	}
		6565	if( strcmp(input_type, clickfillmarge) == 0 ){
		6566	free(input_type);
		6567	return CLICKFILLMARGE;
		6568	}
		6569	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		6570	free(input_type);
		6571	return X_AXIS_STRINGS;
		6572	}
		6573	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		6574	free(input_type);
		6575	return Y_AXIS_STRINGS;
		6576	}
		6577	if( strcmp(input_type, piechart) == 0 ){
		6578	free(input_type);
		6579	return PIECHART;
		6580	}
		6581	if( strcmp(input_type, barchart) == 0 ){
		6582	free(input_type);
		6583	return BARCHART;
		6584	}
		6585	if( strcmp(input_type, linegraph) == 0 ){
		6586	free(input_type);
		6587	return LINEGRAPH;
		6588	}
		6589	if( strcmp(input_type, clock) == 0 ){
		6590	free(input_type);
		6591	return CLOCK;
		6592	}
		6593	if( strcmp(input_type, legend) == 0 ){
		6594	free(input_type);
		6595	return LEGEND;
		6596	}
		6597	if( strcmp(input_type, legendcolors) == 0 ){
		6598	free(input_type);
		6599	return LEGENDCOLORS;
		6600	}
		6601	if( strcmp(input_type, xlabel) == 0 ){
		6602	free(input_type);
		6603	return XLABEL;
		6604	}
		6605	if( strcmp(input_type, ylabel) == 0 ){
		6606	free(input_type);
		6607	return YLABEL;
		6608	}
		6609	if( strcmp(input_type, animate) == 0 ){
		6610	free(input_type);
		6611	return ANIMATE;
		6612	}
		6613	/* these are bitmap related flydraw commmands...must be removed. eventually */
		6614	if( strcmp(input_type, transparent) == 0 ){
		6615	free(input_type);
		6616	return TRANSPARENT;
		6617	}
		6618	if( strcmp(input_type, status) == 0 ){
		6619	free(input_type);
		6620	return STATUS;
		6621	}
		6622	if( strcmp(input_type, snaptogrid) == 0 ){
		6623	free(input_type);
		6624	return SNAPTOGRID;
		6625	}
7652	schaersvoo	6626	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	6627	free(input_type);
7652	schaersvoo	6628	return USERINPUT_XY;
		6629	}
7663	schaersvoo	6630	if( strcmp(input_type, usertextarea_xy) == 0 ){
		6631	free(input_type);
		6632	return USERTEXTAREA_XY;
		6633	}
7654	schaersvoo	6634	if( strcmp(input_type, sgraph) == 0 ){
7652	schaersvoo	6635	free(input_type);
7654	schaersvoo	6636	return SGRAPH;
		6637	}
		6638	free(input_type);
7614	schaersvoo	6639	ungetc(c,infile);
		6640	return 0;
		6641	}
		6642
7729	schaersvoo	6643

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 7749