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

Rev	Author	Line No.	Line
7614	schaersvoo	1	/*
		2	27/7/2013 version 0.01
		3	"Inspired" by FLY program: http://martin.gleeson.com/fly
		4	*********************************************************************************
		5	* J.M. Evers 7/2013 *
		6	* This is all just amateur scriblings... So no copyrights. *
		7	* This source code file, and compiled objects derived from it, *
		8	* can be used and distributed without restriction, including for commercial use *
		9	* No warrenty whatsoever *
		10	*********************************************************************************
		11	*/
7848	bpr	12	#include "canvasdraw.h"
7614	schaersvoo	13
		14	/******************************************************************************
		15	** Internal Functions
		16	******************************************************************************/
		17	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		18	void sync_input(FILE infile);/ proceed with inputfile */
		19	void add_javascript_functions(int js_functions[], int canvas_root_id);
		20	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		21	int get_token(FILE infile); / read next char until EOL*/
8225	bpr	22	/*
7614	schaersvoo	23	int x2px(double x);
		24	int y2px(double y);
8225	bpr	25	*/
7614	schaersvoo	26	double px2x(int x);
		27	double px2y(int y);
7906	schaersvoo	28	double get_real(FILE infile,int last); / read a value; calculation and symbols allowed */
7614	schaersvoo	29	char str_replace ( const char word, const char sub_word, const char rep_word );
		30	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
7906	schaersvoo	31	char get_string(FILE infile,int last); /* get the string at the end of a command */
7614	schaersvoo	32	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		33	char convert_hex2rgb(char hexcolor);
8257	schaersvoo	34	void add_read_canvas(int canvas_root_id,int reply_format,int reply_precision);
7614	schaersvoo	35	void make_js_include(int canvas_root_id);
		36	void check_string_length(int length);/* checks if the length of string argument of command is correct */
8224	bpr	37	FILE *js_include_file;
7614	schaersvoo	38	FILE get_file(int line_number, char **filename);
		39	FILE infile; / will be stdin */
		40	/******************************************************************************
		41	** global
		42	******************************************************************************/
		43	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		44	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		45	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		46	int xsize = 320;
		47	int ysize = 320;
		48	double xmin = 0.0;
		49	double xmax = 320.0;
		50	double ymin = 0.0;
		51	double ymax = 320.0;
		52	double tmax = 2;
		53	double tmin = -2;
		54	/* flag to indicate parsing of line status */
8224	bpr	55	int done = FALSE;
7614	schaersvoo	56	int type; /* eg command number */
		57	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
8097	schaersvoo	58	int slider = 0;/* slider=1 : x-values ; slider=2 : y-values;slider=3 angle values */
7785	schaersvoo	59	int use_affine = FALSE;
7614	schaersvoo	60	int use_rotate = FALSE;
		61	int use_filled = FALSE;
		62	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
8097	schaersvoo	63
7614	schaersvoo	64	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
		65
		66	/******************************************************************************
		67	** Main Program
		68	******************************************************************************/
		69	int main(int argc, char *argv[]){
		70	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
		71	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
		72	infile = stdin;/* read flyscript via stdin */
		73	int i,c;
		74	double double_data[MAX_INT+1];
		75	int int_data[MAX_INT+1];
		76	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		77	int use_parametric = FALSE;/* will be reset after parametric plotting */
		78	int use_axis = FALSE;
		79	int use_axis_numbering = FALSE;
7797	schaersvoo	80	int use_pan_and_zoom = FALSE;
7956	schaersvoo	81	int use_safe_eval = FALSE; /* if true, add just once : js function to evaluate userinput values for plotting etc */
7858	schaersvoo	82	int use_js_math = FALSE; /* if true add js-function to convert math_function --> javascript math_function */
		83	int use_js_plot = FALSE; /* if true , let js-engine plot the curve */
7614	schaersvoo	84	int line_width = 1;
		85	int decimals = 2;
		86	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
		87	int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
		88	int drag_type = -1;/* 0,1,2 : xy,x,y */
		89	int use_tooltip = FALSE;
		90	char *tooltip_text = "Click here";
		91	char temp = ""; / */
		92	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		93	char *stroke_color = "255,0,0";
		94	char *fill_color = "0,255,0";
		95	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		96	char *font_color = "#00000";
		97	char *draw_type = "points";
		98	char *fly_font = "normal";
		99	char *input_style = "";
		100	char *flytext = "";
7785	schaersvoo	101	char *affine_matrix = "[1,0,0,1,0,0]";
7614	schaersvoo	102	int pixelsize = 1;
		103	int reply_format = 0;
		104	int input_cnt = 0;
		105	int ext_img_cnt = 0;
8071	schaersvoo	106	int slider_cnt = 0;
7614	schaersvoo	107	int font_size = 12;
8071	schaersvoo	108	int dashtype[2] = { 4 , 4 };
7614	schaersvoo	109	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		110	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
		111	int arrow_head = 8; /* size in px*/
7833	schaersvoo	112	int crosshair_size = 5; /* size in px*/
8224	bpr	113	int plot_steps = 250;
7983	schaersvoo	114	int found_size_command = 0; /* 1 = found size ; 2 = found xrange; 3 = found yrange*/
7614	schaersvoo	115	int click_cnt = 1;
		116	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		117	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
7989	schaersvoo	118	int barchart_cnt = 0; /* identifier for command 'barchart' ; multiple charts may be plotted in a single plot*/
7956	schaersvoo	119	int legend_cnt = -1; /* to allow multiple legends to be used, for multiple piecharts etc */
8074	schaersvoo	120	int reply_precision = 100; /* used for precision of student answers / drawings */
7614	schaersvoo	121	double angle = 0.0;
		122	int clickfillmarge = 20;
		123	int animation_type = 9; /* == object type curve in drag library */
7823	schaersvoo	124	int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
8112	schaersvoo	125	int use_slider_display = 0; /* in case of a slider, should we display it's value ?*/
7614	schaersvoo	126	size_t string_length = 0;
		127	double stroke_opacity = 0.8;
		128	double fill_opacity = 0.8;
		129	char *URL = "http://localhost/images";
		130	memset(buffer,'\0',MAX_BUFFER);
		131	void *tmp_buffer = "";
8224	bpr	132
7614	schaersvoo	133	/* default writing a unzipped js-include file into wims getfile directory */
		134	char *w_wims_session = getenv("w_wims_session");
8224	bpr	135	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){
7614	schaersvoo	136	canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
		137	}
		138	int L0=strlen(w_wims_session) + 21;
		139	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		140	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		141	mode_t process_mask = umask(0); /* check if file exists */
		142	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		143	if( result == 0 \|\| errno == EEXIST ){
		144	umask(process_mask); /* be sure to set correct permission */
8224	bpr	145	char *w_session = getenv("w_session");
7614	schaersvoo	146	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
		147	char getfile_cmd = my_newmem(L1); / create memory to fit string precisely */
8224	bpr	148	snprintf(getfile_cmd,L1,"wims.cgi?session=%s&cmd=getfile&special_parm=%d.js",w_session,canvas_root_id);/* extension ".gz" is MANDATORY for webserver */
7614	schaersvoo	149	/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
		150	/* now write file into getfile dir*/
		151	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		152	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		153	char location = my_newmem(L2); / create memory to fit string precisely */
		154	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		155	js_include_file = fopen(location,"w");/* open the file location for writing */
		156	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		157	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		158
		159	/* ----------------------------------------------------- */
		160	/* while more lines to process */
		161
		162	while(!finished){
7983	schaersvoo	163	if(line_number>1 && found_size_command == 0){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
7614	schaersvoo	164	type = get_token(infile);
		165	done = FALSE;
		166	/*
		167	@canvasdraw
8224	bpr	168	@will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image<br />by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job.<br />thus ensuring a minimal strain on the client browser <br />(unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
8257	schaersvoo	169	@General syntax <ul><li>The transparency of all objects can be controlled by command 'opacity [0-255],[0,255]'</il><li>a line based object can be controlled by command 'linewidth int'</li><li>a line based object may be dashed by using keyword 'dashed' before the object command.<br />the dashing type can be controled by command 'dashtype int,int'</li><li>a fillable object can be set fillable by starting the object command with an 'f'<br />(like frect,fcircle,ftriangle...)<br />or by using the keyword 'filled' before the object command.<br />The fill colour will be the stroke colour...(19/10/2013)</li><li> all draggable objects may have a slider for translation / rotation; several objects may be translated / rotated by a single slider</li> <li> a draggable object can be set draggable by a preceding command 'drag x/y/xy'<br />The translation can be read by javascript:read_dragdrop();The replyformat is : object_number : x-orig : y-orig : x-drag : y-drag<br />The x-orig/y-orig will be returned in maximum precision (javascript float)...<br />the x-drag/y-drag will be returned in defined 'precision' number of decimals<br />Multiple objects may be set draggable / clickable (no limit)<br /> not all flydraw objects may be dragged / clicked<br />Only draggable / clickable objects will be scaled on zoom and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword 'onclick'<br />not all flydraw objects can be set clickable</li><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (in stead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.</li></ul>Note: for now just <b>one interactive</b> instance of canvasdraw is allowed <br />[e.g. using command 'userdraw' and function javascript:read_canvas()]<br />Aim is to allow multiple interactive instances of canvasdraw to exist in a single page (this will however call for a much more 'object oriented approach' and decent javascript programming...)
7614	schaersvoo	170	*/
		171	switch(type){
		172	case END:
		173	finished = 1;
		174	done = TRUE;
		175	break;
		176	case 0:
		177	sync_input(infile);
		178	break;
		179	case COMMENT:
		180	sync_input(infile);
		181	break;
		182	case EMPTY:
		183	sync_input(infile);
		184	break;
		185	case SIZE:
		186	/*
		187	@size width,height
		188	@set canvas size in pixels
		189	@mandatory first command
7906	schaersvoo	190	@if xrange and/or yrange is not given the range will be set to pixels :<br />xrange 0,xsize yrange 0,ysize<br />note: lower left corner is Origin (0:0) !!! this in contrast to flydraw
7614	schaersvoo	191	*/
7983	schaersvoo	192	found_size_command = 1;
7614	schaersvoo	193	xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		194	ysize = (int)(abs(round(get_real(infile,1))));
		195	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		196	xmin = 0;xmax = xsize;
7647	schaersvoo	197	ymin = 0;ymax = ysize;
7614	schaersvoo	198
8224	bpr	199	/*
7614	schaersvoo	200	The sequence in which stuff is finally printed is important !!
		201	for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
		202	*/
8257	schaersvoo	203	fprintf(stdout,"\n<script type=\"text/javascript\">\
		204	if( typeof wims_status === 'undefined' ){ var wims_status = \"$status\";};\
		205	if( typeof use_dragdrop_reply === 'undefined' ){ var use_dragdrop_reply = false;};\
		206	if( typeof canvas_scripts === 'undefined' ){ var canvas_scripts = new Array();};\
		207	canvas_scripts.push(\"%d\");</script>\n\
		208	<!-- canvasdraw div and tooltip placeholder, if needed -->\n<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" ></div><div id=\"tooltip_placeholder_div%d\" style=\"display:block;margin-bottom:4px;\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\n",canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
		209	fprintf(stdout,"<!-- include actual object code via include file -->\n<script id=\"canvas_script%d\" type=\"text/javascript\" src=\"%s\"></script>\n",canvas_root_id,getfile_cmd);
8146	schaersvoo	210	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n\
8108	schaersvoo	211	\"use strict\";\n\
8146	schaersvoo	212	<!-- these variables and functions must be global -->\n\
8257	schaersvoo	213	var read_dragdrop%d;\
		214	var read_canvas%d;\
8130	schaersvoo	215	var set_clock;\
8146	schaersvoo	216	var clear_draw_area;\
8257	schaersvoo	217	var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
8146	schaersvoo	218	var userdraw_x = [];var userdraw_y = [];var userdraw_radius = [];\n\
7729	schaersvoo	219	var xsize = %d;\
		220	var ysize = %d;\
7797	schaersvoo	221	var precision = 100;\
7729	schaersvoo	222	var canvas_div = document.getElementById(\"canvas_div%d\");\
8105	schaersvoo	223	var create_canvas%d = function(canvas_type,size_x,size_y){var cnv;if(document.getElementById(\"wims_canvas%d\"+canvas_type)){ cnv = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{try{ cnv = document.createElement(\"canvas\"); }catch(e){alert(\"Your browser does not support HTML5 CANVAS:GET FIREFOX !\");return;};canvas_div.appendChild(cnv);};cnv.width = size_x;cnv.height = size_y;cnv.style.top = 0;cnv.style.left = 0;cnv.style.position = \"absolute\";cnv.id = \"wims_canvas%d\"+canvas_type;return cnv;};\
7729	schaersvoo	224	function findPosX(i){ var obj = i;var curleft = 0;if(obj.offsetParent){while(1){curleft += obj.offsetLeft;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.x){curleft += obj.x;};};return curleft;};function findPosY(i){var obj = i;var curtop = 0;if(obj.offsetParent){while(1){curtop += obj.offsetTop;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.y){curtop += obj.y;};};return curtop;};\
7990	schaersvoo	225	function x2px(x){if(use_xlogscale == 0 ){return parseFloat(xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin));}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_in = Math.log(x)/Math.log(xlogbase);return x_inxsize/(x_max - x_min) - xsizex_min/(x_max - x_min);};};\
		226	function px2x(px){if(use_xlogscale == 0 ){return parseFloat(px(xmax - xmin)/xsize + xmin);}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_out = x_min +px(x_max - x_min)/(xsize);return Math.pow(xlogbase,x_out);};};\
		227	function px2y(py){if(use_ylogscale == 0 ){return parseFloat(ymax - py(ymax - ymin)/ysize);}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_out = y_max +py(y_min - y_max)/(ysize);return Math.pow(ylogbase,y_out);};};\
		228	function y2px(y){if(use_ylogscale == 0){return parseFloat(-1yysize/(ymax - ymin) + ymaxysize/(ymax - ymin));}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_in = Math.log(y)/Math.log(ylogbase);return (y_max - y_in)ysize/(y_max - y_min);};};\
8071	schaersvoo	229	function scale_x_radius(rx){return rx*xsize/(xmax - xmin);};\
		230	function scale_y_radius(ry){return ry*ysize/(ymax - ymin);};\
7729	schaersvoo	231	function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) ));};\
		232	function distance_to_line (r,q,x,y){var c = (y) - (-1/r)(x);var xs = r(c - q)/(rr+1);var ys = (r)(xs)+(q);return parseInt(Math.sqrt( (xs-x)(xs-x) + (ys-y)(ys-y) ));};\
8105	schaersvoo	233	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;};\
		234	function slide(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = x2px(obj.xorg[p] + dx);obj.y[p] = y2px(obj.yorg[p] + dy);};return obj;};\
7881	schaersvoo	235	var x_use_snap_to_grid = 0;var y_use_snap_to_grid = 0;var snap_x = 1;var snap_y = 1;\
		236	function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\
		237	function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\
7735	schaersvoo	238	var xlogbase = 10;\
		239	var ylogbase = 10;\
7729	schaersvoo	240	var use_xlogscale = 0;\
		241	var use_ylogscale = 0;\
		242	var x_strings = null;\
		243	var y_strings = null;\
		244	var use_pan_and_zoom = 0;\
7858	schaersvoo	245	var use_jsmath = 0;\
7729	schaersvoo	246	var xstart = 0;\
7996	schaersvoo	247	var ystart = 0;\
		248	var unit_x=\" \";\
8257	schaersvoo	249	var unit_y=\" \";",canvas_root_id,canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	250	/* default add the drag code : nearly always used ...*/
8257	schaersvoo	251	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		252
7614	schaersvoo	253	break;
		254	case XRANGE:
		255	/*
		256	@ xrange xmin,xmax
8224	bpr	257	@ if not given: 0,xsize (eg in pixels)
7614	schaersvoo	258	*/
		259	for(i = 0 ; i<2; i++){
		260	switch(i){
		261	case 0: xmin = get_real(infile,0);break;
		262	case 1: xmax = get_real(infile,1);break;
		263	default: break;
		264	}
		265	}
		266	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		267	fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
7983	schaersvoo	268	found_size_command++;
7614	schaersvoo	269	break;
		270	case YRANGE:
		271	/*
		272	@ yrange ymin,ymax
		273	@ if not given 0,ysize (eg in pixels)
		274	*/
		275	for(i = 0 ; i<2; i++){
		276	switch(i){
		277	case 0: ymin = get_real(infile,0);break;
		278	case 1: ymax = get_real(infile,1);break;
		279	default: break;
		280	}
		281	}
		282	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		283	fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
7983	schaersvoo	284	found_size_command++;
7614	schaersvoo	285	break;
		286	case TRANGE:
		287	/*
		288	@ trange tmin,tmax
		289	@ default -2,2
		290	*/
		291	use_parametric = TRUE;
		292	for(i = 0 ; i<2; i++){
		293	switch(i){
		294	case 0: tmin = get_real(infile,0);break;
		295	case 1: tmax = get_real(infile,1);break;
		296	default: break;
		297	}
		298	}
		299	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
		300	break;
		301	case LINEWIDTH:
		302	/*
		303	@ linewidth int
		304	@ default 1
		305	*/
		306	line_width = (int) (get_real(infile,1));
		307	break;
		308	case ARROWHEAD:
		309	/*
		310	@ arrowhead int
		311	@ default 8 (pixels)
		312	*/
		313	arrow_head = (int) (get_real(infile,1));
		314	break;
		315	case CROSSHAIRSIZE:
		316	/*
		317	@ crosshairsize int
		318	@ default 10 (px)
		319	*/
		320	crosshair_size = (int) (get_real(infile,1));
		321	break;
		322	case CROSSHAIR:
		323	/*
		324	@ crosshair x,y,color
		325	@ draw a single crosshair point at (x;y) in color 'color'
7956	schaersvoo	326	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
7614	schaersvoo	327	@ may be set draggable / onclick
		328	*/
		329	for(i=0;i<3;i++){
		330	switch(i){
		331	case 0: double_data[0] = get_real(infile,0);break; /* x */
		332	case 1: double_data[1] = get_real(infile,0);break; /* y */
		333	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		334	decimals = find_number_of_digits(precision);
8097	schaersvoo	335	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	336	click_cnt++;reset();
		337	break;
		338	default:break;
		339	}
		340	}
		341	break;
		342	case CROSSHAIRS:
		343	/*
		344	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		345	@ draw multiple crosshair points at given coordinates in color 'color'
7956	schaersvoo	346	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
7614	schaersvoo	347	@ may be set draggable / onclick individually (!)
		348	*/
		349	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		350	fill_color = stroke_color;
		351	i=0;
		352	while( ! done ){ /* get next item until EOL*/
		353	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		354	if(i%2 == 0 ){
		355	double_data[i] = get_real(infile,0); /* x */
		356	}
		357	else
		358	{
		359	double_data[i] = get_real(infile,1); /* y */
		360	}
		361	i++;
		362	}
		363	decimals = find_number_of_digits(precision);
		364	for(c=0 ; c < i-1 ; c = c+2){
8097	schaersvoo	365	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	366	click_cnt++;
		367	}
		368	reset();
		369	break;
		370	case POINT:
		371	/*
		372	@ point x,y,color
		373	@ draw a single point at (x;y) in color 'color'
7956	schaersvoo	374	@ use command 'linewidth int' to adust size
7614	schaersvoo	375	@ may be set draggable / onclick
8224	bpr	376	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
7614	schaersvoo	377	*/
		378	for(i=0;i<3;i++){
		379	switch(i){
		380	case 0: double_data[0] = get_real(infile,0);break; /* x */
		381	case 1: double_data[1] = get_real(infile,0);break; /* y */
		382	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		383	decimals = find_number_of_digits(precision);
8097	schaersvoo	384	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	385	click_cnt++;break;
		386	default: break;
		387	}
		388	}
		389	reset();
		390	break;
		391	case POINTS:
		392	/*
7634	schaersvoo	393	@ points color,x1,y1,x2,y2,...,x_n,y_n
7614	schaersvoo	394	@ draw multiple points at given coordinates in color 'color'
7956	schaersvoo	395	@ use command 'linewidth int' to adust size
7614	schaersvoo	396	@ may be set draggable / onclick individually (!)
		397	*/
		398	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		399	fill_color = stroke_color;
		400	i=0;
		401	while( ! done ){ /* get next item until EOL*/
		402	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		403	if(i%2 == 0 ){
		404	double_data[i] = get_real(infile,0); /* x */
		405	}
		406	else
		407	{
		408	double_data[i] = get_real(infile,1); /* y */
		409	}
		410	i++;
		411	}
8224	bpr	412	decimals = find_number_of_digits(precision);
7614	schaersvoo	413	for(c = 0 ; c < i-1 ; c = c+2){
8097	schaersvoo	414	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,2,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[c],decimals,double_data[c+1],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	415	click_cnt++;
		416	}
		417	reset();
		418	break;
		419	case SEGMENT:
		420	/*
		421	@ segment x1,y1,x2,y2,color
		422	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		423	@ may be set draggable / onclick
		424	*/
		425	for(i=0;i<5;i++) {
		426	switch(i){
		427	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		428	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		429	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		430	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		431	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		432	decimals = find_number_of_digits(precision);
8097	schaersvoo	433	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	434	click_cnt++;reset();
		435	break;
		436	default: break;
		437	}
		438	}
		439	break;
		440	case LINE:
		441	/*
		442	@ line x1,y1,x2,y2,color
		443	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		444	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		445	@ may be set draggable / onclick
		446	*/
		447	for(i=0;i<5;i++){
		448	switch(i){
		449	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		450	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		451	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		452	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		453	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		454	if( double_data[10] == double_data[12] ){ /* vertical line*/
		455	double_data[1] = xmin;
		456	double_data[3] = ymax;
		457	double_data[0] = double_data[10];
		458	double_data[2] = double_data[10];
		459	}
		460	else
		461	{
		462	if( double_data[11] == double_data[13] ){ /* horizontal line */
		463	double_data[1] = double_data[11];
		464	double_data[3] = double_data[11];
		465	double_data[0] = ymin;
		466	double_data[2] = xmax;
		467	}
		468	else
		469	{
		470	/* m */
		471	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		472	/* q */
		473	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
8224	bpr	474
7614	schaersvoo	475	/xmin,mxmin+q,xmax,mxmax+q/
8224	bpr	476
7614	schaersvoo	477	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		478	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		479	double_data[0] = xmin;
		480	double_data[2] = xmax;
		481	}
		482	}
		483	decimals = find_number_of_digits(precision);
8097	schaersvoo	484	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	485	click_cnt++;reset();
		486	break;
		487	}
		488	}
		489	break;
8244	schaersvoo	490	case HALFLINE:
		491	/*
		492	@ demiline x1,y1,x2,y2,color
		493	@ alternative : halfline
		494	@ draws a halfline starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex)
		495	@ may be set draggable / onclick
		496	*/
		497	for(i=0;i<5;i++){
		498	switch(i){
		499	case 0: double_data[0]= get_real(infile,0);break; /* x-values */
		500	case 1: double_data[1]= get_real(infile,0);break; /* y-values */
		501	case 2: double_data[10]= get_real(infile,0);break; /* x-values */
		502	case 3: double_data[11]= get_real(infile,0);break; /* y-values */
		503	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		504	if(double_data[0] == double_data[10]){ /* vertical halfline */
		505	if(double_data[1] < double_data[11]){
		506	double_data[3] = ymax + 1000;
		507	}
		508	else
		509	{
		510	double_data[3] = ymin - 1000;
		511	}
		512	double_data[2] = double_data[0];
		513	}
		514	else
		515	{ /* horizontal halfline*/
		516	if( double_data[1] == double_data[11] ){
		517	if( double_data[0] < double_data[10] ){
		518	double_data[2] = xmax + 1000; /* halfline to the right */
		519	}
		520	else
		521	{
		522	double_data[2] = xmin - 1000; /* halfline to the left */
		523	}
		524	double_data[3] = double_data[1];
		525	}
		526	else
		527	{
		528	/* any other halfline */
		529	/* slope */
		530	double_data[12] = (double_data[11] - double_data[1])/(double_data[10] - double_data[0]);
		531	/* const */
		532	double_data[13] = double_data[1] - double_data[12]*double_data[0];
		533	if( double_data[0] < double_data[10] ){
		534	double_data[2] = double_data[2] + 1000;
		535	}
		536	else
		537	{
		538	double_data[2] = double_data[2] - 1000;
		539	}
		540	double_data[3] = double_data[12]*double_data[2] + double_data[13];
		541	}
		542	}
		543	decimals = find_number_of_digits(precision);
		544	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,18,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
		545	click_cnt++;reset();
		546	break;
		547	}
		548	}
		549
		550	break;
8224	bpr	551	case HLINE:
7614	schaersvoo	552	/*
		553	@ hline x,y,color
		554	@ draw a horizontal line through point (x:y) in color 'color'
		555	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		556	@ may be set draggable / onclick
		557	*/
		558	for(i=0;i<3;i++) {
		559	switch(i){
		560	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		561	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		562	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		563	double_data[3] = double_data[1];
		564	decimals = find_number_of_digits(precision);
8097	schaersvoo	565	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,xmin,decimals,xmax,decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	566	click_cnt++;reset();
		567	break;
		568	}
		569	}
		570	break;
		571	case VLINE:
		572	/*
		573	@ vline x,y,color
		574	@ draw a vertical line through point (x:y) in color 'color'
		575	@ may be set draggable / onclick
		576	*/
		577	for(i=0;i<3;i++) {
		578	switch(i){
		579	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		580	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		581	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		582	double_data[2] = double_data[0];
		583	decimals = find_number_of_digits(precision);
8097	schaersvoo	584	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,ymin,decimals,ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	585	click_cnt++;reset();
		586	break;
		587	}
		588	}
		589	break;
		590	case SQUARE:
		591	/*
8071	schaersvoo	592	@ square x,y,side (px) ,color
7614	schaersvoo	593	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		594	@ use command 'fsquare x,y,side,color' for a filled square
		595	@ use command/keyword 'filled' before command 'square x,y,side,color'
		596	@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
		597	@ may be set draggable / onclick
		598	*/
		599	for(i=0;i<5;i++){
		600	switch(i){
8071	schaersvoo	601	case 0:double_data[0] = get_real(infile,0);break; /* x1-values */
		602	case 1:double_data[1] = get_real(infile,0);break; /* y1-values */
		603	case 2:double_data[2] = (int) (get_real(infile,0));break; /* width in px */
		604	case 3:
		605	stroke_color = get_color(infile,1);/* name or hex color */
7614	schaersvoo	606	decimals = find_number_of_digits(precision);
8071	schaersvoo	607	double_data[3] = double_data[0] + (xmax - xmin)*double_data[2]/xsize;
		608	double_data[4] = double_data[1] + -1(ymax - ymin)double_data[2]/ysize;
8097	schaersvoo	609	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[3],decimals,double_data[3],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[4],decimals,double_data[4],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	610	click_cnt++;reset();
		611	break;
		612	}
		613	}
		614	break;
		615	case ROUNDRECT:
		616	/*
		617	@ roundrect x1,y1,x2,y2,radius,color
		618	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
		619	@ use command/keyword 'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
		620	@ use command 'fillcolor color' before 'froundrect' to set the fill colour.
		621	@ may be set draggable / onclick
		622	*/
		623	for(i=0;i<6;i++){
		624	switch(i){
		625	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		626	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		627	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		628	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		629	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		630	case 5:stroke_color = get_color(infile,1);/* name or hex color */
8071	schaersvoo	631	/* ensure no inverted roundrect is produced... */
		632	if( double_data[0] > double_data[2] ){double_data[4] = double_data[0];double_data[0] = double_data[2];double_data[2] = double_data[4];}
8224	bpr	633	if( double_data[3] > double_data[1] ){double_data[4] = double_data[1];double_data[1] = double_data[3];double_data[3] = double_data[4];}
7614	schaersvoo	634	decimals = find_number_of_digits(precision);
8097	schaersvoo	635	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,6,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	636	click_cnt++;reset();
		637	break;
		638	}
		639	}
		640	break;
		641	case RECT:
		642	/*
		643	@ rect x1,y1,x2,y2,color
		644	@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
		645	@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
		646	@ use command 'fillcolor color' before 'frect' to set the fill colour.
		647	@ may be set draggable / onclick
		648	*/
		649	for(i=0;i<5;i++){
		650	switch(i){
		651	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		652	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		653	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		654	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		655	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		656	decimals = find_number_of_digits(precision);
8097	schaersvoo	657	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[2],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[3],decimals,double_data[3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	658	click_cnt++;reset();
		659	break;
		660	}
		661	}
		662	break;
		663	case POLYLINE:
		664	/*
		665	@ polyline color,x1,y1,x2,y2...x_n,y_n
		666	@ may be set draggable / onclick
		667	*/
		668	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		669	i=0;
		670	c=0;
		671	while( ! done ){ /* get next item until EOL*/
		672	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		673	for( c = 0 ; c < 2; c++){
		674	if(c == 0 ){
		675	double_data[i] = get_real(infile,0);
		676	i++;
		677	}
		678	else
		679	{
		680	double_data[i] = get_real(infile,1);
		681	i++;
		682	}
		683	}
		684	}
		685	/* draw path : not closed & not filled */
		686	decimals = find_number_of_digits(precision);
8097	schaersvoo	687	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	688	click_cnt++;reset();
		689	break;
		690	case POLY:
		691	/*
		692	@ poly color,x1,y1,x2,y2...x_n,y_n
		693	@ draw closed polygon
		694	@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
		695	@ may be set draggable / onclick
		696	*/
		697	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		698	i=0;
		699	c=0;
		700	while( ! done ){ /* get next item until EOL*/
		701	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		702	for( c = 0 ; c < 2; c++){
		703	if(c == 0 ){
		704	double_data[i] = get_real(infile,0);
		705	i++;
		706	}
		707	else
		708	{
		709	double_data[i] = get_real(infile,1);
		710	i++;
		711	}
		712	}
		713	}
		714	/* draw path : closed & optional filled */
		715	decimals = find_number_of_digits(precision);
8097	schaersvoo	716	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	717	click_cnt++;reset();
		718	break;
8224	bpr	719	case ARC:
7614	schaersvoo	720	/*
		721	@ arc xc,yc,width,height,start_angle,end_angle,color
		722	@ can not be set "onclick" or "drag xy"
8105	schaersvoo	723	@ attention: width == height == radius in pixels
		724	@ will not zoom in or zoom out (because radius is given in pixels an not in x/y-system !). Panning will work
		725	@ use command 'angle' for scalable angle
7614	schaersvoo	726	*/
		727	for(i=0;i<7;i++){
		728	switch(i){
		729	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		730	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		731	case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
		732	case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
		733	case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
		734	case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
		735	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		736	/* in Shape library:
		737	x[0] = x[1] = xc
		738	y[0] = y[1] = yc
8224	bpr	739	w[0] = w[1] = radius = width = height
		740	h[0] = start_angle ; h[1] = end_engle
7614	schaersvoo	741	*/
		742	decimals = find_number_of_digits(precision);
8097	schaersvoo	743	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,12,[%.f,%.f],[%.f,%.f],[%d,%d],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],int_data[0],int_data[0],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	744	reset();
		745	break;
		746	}
		747	}
		748	break;
8224	bpr	749	case ANGLE:
8105	schaersvoo	750	/*
		751	@ angle xc,yc,width,start_angle,end_angle,color
		752	@ width is in x-range
		753	@ will zoom in/out
		754	@ if size is controlled by command 'slider' use radians to set limits of slider.
		755	*/
		756	for(i=0;i<7;i++){
		757	switch(i){
		758	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		759	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		760	case 2:double_data[2] = get_real(infile,0);break; /* width in pixels ! */
		761	case 3:double_data[3] = get_real(infile,0);break; /* start angle in degrees */
		762	case 4:double_data[4] = get_real(infile,0);break; /* end angle in degrees */
		763	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		764	decimals = find_number_of_digits(precision);
		765	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,17,[%.f,%.f],[%.f,%.f],[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
		766	reset();
		767	break;
		768	}
		769	}
		770	break;
		771
7614	schaersvoo	772	case ELLIPSE:
		773	/*
		774	@ ellipse xc,yc,radius_x,radius_y,color
8224	bpr	775	@ a ellipse with center xc/yc in x/y-range
7614	schaersvoo	776	@ radius_x and radius_y are in pixels
		777	@ may be set draggable / onclick
8224	bpr	778	@ will shrink / expand on zoom out / zoom in
7614	schaersvoo	779	*/
		780	for(i=0;i<5;i++){
		781	switch(i){
		782	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		783	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		784	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
8224	bpr	785	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
7614	schaersvoo	786	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		787	decimals = find_number_of_digits(precision);
8097	schaersvoo	788	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,3,[%.f],[%.f],[%.f],[%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	789	click_cnt++;reset();
		790	break;
		791	}
		792	}
		793	break;
		794	case DASHTYPE:
		795	/*
		796	@ dashtype int ,int
7956	schaersvoo	797	@ When dashed is set, the objects will be drawn with this dashtyp
7614	schaersvoo	798	@ default value "dashtype 2,2"
		799	*/
		800	for(i=0;i<2;i++){
		801	switch(i){
		802	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		803	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		804	}
		805	}
		806	break;
		807	case CIRCLE:
		808	/*
		809	@ circle xc,yc,width (2*r in pixels),color
		810	@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
		811	@ use command 'fillcolor color' to set the fillcolor
		812	@ may be set draggable / onclick
8224	bpr	813	@ will shrink / expand on zoom out / zoom in
7614	schaersvoo	814	*/
		815	for(i=0;i<4;i++){
		816	switch(i){
		817	case 0: double_data[0] = get_real(infile,0);break; /* x */
		818	case 1: double_data[1] = get_real(infile,0);break; /* y */
8116	schaersvoo	819	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* for zoom in/out : radius in 'dx' xrange*/
7614	schaersvoo	820	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		821	decimals = find_number_of_digits(precision);
8097	schaersvoo	822	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,13,[%.f],[%.f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],double_data[2],double_data[2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	823	click_cnt++;reset();
		824	break;
		825	}
		826	}
		827	break;
		828	case RAYS:
		829	/*
		830	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		831	@ draw rays in color 'color' and center (xc:yc)
7786	schaersvoo	832	@ may be set draggable or onclick (every individual ray)
7614	schaersvoo	833	*/
		834	stroke_color=get_color(infile,0);
7786	schaersvoo	835	fill_color = stroke_color;
		836	double_data[0] = get_real(infile,0);/* xc */
		837	double_data[1] = get_real(infile,0);/* yc */
		838	i=2;
		839	while( ! done ){ /* get next item until EOL*/
		840	if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
		841	if(i%2 == 0 ){
		842	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	843	}
7786	schaersvoo	844	else
		845	{
		846	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	847	}
7786	schaersvoo	848	fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
		849	i++;
7614	schaersvoo	850	}
8224	bpr	851
		852	if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
		853	decimals = find_number_of_digits(precision);
7786	schaersvoo	854	for(c=2; c<i;c = c+2){
7614	schaersvoo	855	click_cnt++;
8097	schaersvoo	856	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[c],decimals,double_data[1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	857	}
		858	reset();
		859	break;
		860	case ARROW:
		861	/*
		862	@ arrow x1,y1,x2,y2,h,color
		863	@ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		864	@ use command 'linewidth int' to adjust thickness of the arrow
		865	@ may be set draggable / onclick
		866	*/
		867	for(i=0;i<6;i++){
		868	switch(i){
		869	case 0: double_data[0] = get_real(infile,0);break; /* x */
		870	case 1: double_data[1] = get_real(infile,0);break; /* y */
		871	case 2: double_data[2] = get_real(infile,0);break; /* x */
		872	case 3: double_data[3] = get_real(infile,0);break; /* y */
		873	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		874	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		875	decimals = find_number_of_digits(precision);
8097	schaersvoo	876	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,8,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	877	click_cnt++;
		878	reset();
		879	break;
		880	}
		881	}
		882	break;
		883	case ARROW2:
		884	/*
		885	@ arrow2 x1,y1,x2,y2,h,color
		886	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		887	@ use command 'arrowhead int' to adjust the arrow head size
		888	@ use command 'linewidth int' to adjust thickness of the arrow
		889	@ may be set draggable / onclick
		890	*/
		891	for(i=0;i<6;i++){
		892	switch(i){
		893	case 0: double_data[0] = get_real(infile,0);break; /* x */
		894	case 1: double_data[1] = get_real(infile,0);break; /* y */
		895	case 2: double_data[2] = get_real(infile,0);break; /* x */
		896	case 3: double_data[3] = get_real(infile,0);break; /* y */
		897	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		898	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		899	decimals = find_number_of_digits(precision);
8097	schaersvoo	900	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,10,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	901	click_cnt++;reset();
		902	break;
		903	}
		904	}
		905	break;
8224	bpr	906	case PARALLEL:
7614	schaersvoo	907	/*
		908	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
8224	bpr	909	@ can not be set "onclick" or "drag xy"
7614	schaersvoo	910	*/
		911	for( i = 0;i < 8; i++ ){
		912	switch(i){
		913	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		914	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		915	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		916	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		917	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		918	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		919	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		920	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		921	decimals = find_number_of_digits(precision);
8097	schaersvoo	922	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,11,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d,%d],[%d,%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	923	click_cnt++;reset();
		924	break;
		925	default: break;
		926	}
		927	}
		928	break;
		929	case TRIANGLE:
		930	/*
		931	@triangle x1,y1,x2,y2,x3,y3,color
7956	schaersvoo	932	@may be set draggable / onclic
7614	schaersvoo	933	*/
		934	for(i=0;i<7;i++){
		935	switch(i){
		936	case 0: double_data[0] = get_real(infile,0);break; /* x */
		937	case 1: double_data[1] = get_real(infile,0);break; /* y */
		938	case 2: double_data[2] = get_real(infile,0);break; /* x */
		939	case 3: double_data[3] = get_real(infile,0);break; /* y */
		940	case 4: double_data[4] = get_real(infile,0);break; /* x */
		941	case 5: double_data[5] = get_real(infile,0);break; /* y */
		942	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		943	decimals = find_number_of_digits(precision);
8097	schaersvoo	944	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	945	click_cnt++;reset();
		946	break;
		947	default: break;
		948	}
		949	}
		950	break;
		951	case LATTICE:
		952	/*
		953	@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
8224	bpr	954	@can not be set "onclick" or "drag xy"
7614	schaersvoo	955	*/
		956	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		957	for( i = 0; i<9; i++){
		958	switch(i){
		959	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		960	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		961	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
8071	schaersvoo	962	case 3: int_data[3] = (int) -1(get_real(infile,0));break; / y1-values -> y-pixels*/
7614	schaersvoo	963	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
8071	schaersvoo	964	case 5: int_data[5] = (int) -1(get_real(infile,0));break; / y2-values -> y-pixels*/
7614	schaersvoo	965	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		966	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		967	case 8: stroke_color=get_color(infile,1);
		968	decimals = find_number_of_digits(precision);
8071	schaersvoo	969	string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	970	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	971	snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	972	add_to_buffer(tmp_buffer);
		973	break;
		974	default:break;
		975	}
		976	}
		977	reset();
		978	break;
		979	case SNAPTOGRID:
		980	/*
		981	@ snaptogrid
		982	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		983	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
7784	schaersvoo	984	@ if xminor / yminor is defined, the drawing will snap to xminor and yminor<br />use only even dividers in x/y-minor...for example<br />snaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
7614	schaersvoo	985	*/
7881	schaersvoo	986	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;");
7614	schaersvoo	987	break;
7784	schaersvoo	988	case XSNAPTOGRID:
		989	/*
		990	@ xsnaptogrid
		991	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		992	@ in case of userdraw the drawn points will snap to xmajor grid
7856	schaersvoo	993	@ if xminor is defined, the drawing will snap to xminor <br />use only even dividers in x-minor...for example<br />xsnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
7784	schaersvoo	994	*/
7881	schaersvoo	995	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 0;");
7784	schaersvoo	996	break;
		997	case YSNAPTOGRID:
		998	/*
		999	@ ysnaptogrid
		1000	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		1001	@ in case of userdraw the drawn points will snap to ymajor grid
7856	schaersvoo	1002	@ if yminor is defined, the drawing will snap to yminor <br />use only even dividers in y-minor...for example<br />ysnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
7784	schaersvoo	1003	*/
7881	schaersvoo	1004	fprintf(js_include_file,"\nx_use_snap_to_grid = 0;y_use_snap_to_grid = 1;");
7784	schaersvoo	1005	break;
8222	schaersvoo	1006	case USERINPUT:
		1007	/*
		1008	@ userinput function \| textarea \| inputfield
		1009	@ alternative command + argment to keywords "userinput_function","userinput_textarea" and "userinput_xy"
		1010	@ textarea and inputfield are only usable in combination with some 'userdraw draw_ type'
		1011	@ function may be used any time (e.g. without userdraw)
		1012	*/
		1013	temp = get_string_argument(infile,1);
		1014	if(strstr(temp,"function") != 0 \|\| strstr(temp,"curve") != 0 \|\| strstr(temp,"plot") != 0 ){
8224	bpr	1015	if( js_function[DRAW_JSFUNCTION] != 1 ){
8222	schaersvoo	1016	js_function[DRAW_JSFUNCTION] = 1;
		1017	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
		1018	add_input_jsfunction(js_include_file,canvas_root_id,1,input_style,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1]);
		1019	input_cnt++;
		1020	}
		1021	if( use_js_math == FALSE){/* add this stuff only once...*/
		1022	add_to_js_math(js_include_file);
		1023	use_js_math = TRUE;
		1024	}
		1025	if( use_js_plot == FALSE){
		1026	use_js_plot = TRUE;
		1027	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1028	}
		1029	}
		1030	else
		1031	{
		1032	if(strstr(temp,"inputfield") != 0 ){
		1033	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		1034	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		1035	use_input_xy = 1;
		1036	}
		1037	else
		1038	{
		1039	if(strstr(temp,"textarea") != 0 ){
		1040	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		1041	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		1042	use_input_xy = 2;
		1043	}
		1044	else
		1045	{
		1046	canvas_error("userinput argument may be \"function,inputfield,textarea\"");
		1047	}
		1048	}
		1049	}
		1050	break;
7663	schaersvoo	1051	case USERTEXTAREA_XY:
		1052	/*
		1053	@ usertextarea_xy
8224	bpr	1054	@ keyword
7663	schaersvoo	1055	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
8224	bpr	1056	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
7663	schaersvoo	1057	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
8224	bpr	1058	@ user drawings will not zoom on zooming (or pan on panning)
7663	schaersvoo	1059	*/
7856	schaersvoo	1060	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
7956	schaersvoo	1061	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7749	schaersvoo	1062	use_input_xy = 2;
		1063	break;
7652	schaersvoo	1064	case USERINPUT_XY:
		1065	/*
		1066	@ userinput_xy
8224	bpr	1067	@ keyword
7652	schaersvoo	1068	@ to be used in combination with command "userdraw object_type,color"
8224	bpr	1069	@ if set two (or three) input fields are added to the document<br />(one for x-values , one for y-values and in case of drawing circle one for radius-values)
7652	schaersvoo	1070	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
7749	schaersvoo	1071	@ 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	1072	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
8224	bpr	1073	@ user drawings will not zoom on zooming (or pan on panning)
7652	schaersvoo	1074	*/
7749	schaersvoo	1075	/* add simple eval check to avoid code injection with unprotected eval(string) */
7856	schaersvoo	1076	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
7956	schaersvoo	1077	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7749	schaersvoo	1078	use_input_xy = 1;
		1079	break;
8193	schaersvoo	1080	case USERINPUT_FUNCTION:
		1081	/*
		1082	@ userinput_function
		1083	@ keyword
		1084	@ if set , a inputfield will be added to the page
		1085	@ the userinput value will be plotted in the canvas
		1086	@ this value may be read with 'read_canvas()'. <br />for do it yourself js-scripters : If this is the first inputfield in the script, it's id is canvas_input0
		1087	@ use before this command 'userinput_function',<br />commands like 'inputstyle some_css' , 'xlabel some_description' , 'opacity int,int' , 'linewidth int' , 'dashed' and 'dashtype int,int' to modify
		1088	@ incompatible with command 'intooltip link_text_or_image' : it uses the tooltip div for adding the inputfield
		1089	*/
8224	bpr	1090	if( js_function[DRAW_JSFUNCTION] != 1 ){
8193	schaersvoo	1091	js_function[DRAW_JSFUNCTION] = 1;
		1092	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
		1093	add_input_jsfunction(js_include_file,canvas_root_id,1,input_style,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1]);
		1094	input_cnt++;
		1095	}
		1096	if( use_js_math == FALSE){/* add this stuff only once...*/
		1097	add_to_js_math(js_include_file);
		1098	use_js_math = TRUE;
		1099	}
		1100	if( use_js_plot == FALSE){
		1101	use_js_plot = TRUE;
		1102	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1103	}
		1104	break;
7614	schaersvoo	1105	case USERDRAW:
		1106	/*
		1107	@ userdraw object_type,color
8244	schaersvoo	1108	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>vline</li><li>vlines</li><li>hline</li><li>hlines</li><li>demiline</li><li>demilines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrow2 (double arrow)</li><li>arrows</li><li>arrows2 (double arrows)</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li><li>arc</li><li>arcs</li><li>input<br/>place a single inputfield on 'canvas'<br />use commands 'inputstyle' for css styling: use command 'linewidth' for adjusting the input field size (default 1)</li><li>inputs<br/>place multiple inputfield : placing inputfields on top of each other is not possible</li></ul>
7614	schaersvoo	1109	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
7956	schaersvoo	1110	@ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas.<br />while typing the background of every typed char will be lightblue..."backspace / delete / esc" will remove typed text.<br />You will need to hit "enter" to add the text to the array "userdraw_txt()" : lightblue background will disappear<br />Placing the cursor somewhere on a typed text and hitting "delete/backspace/esc" , a confirm will popup asking to delete the selected text.This text will be removed from the "userdraw_txt()" answer array.<br />Use commands 'fontsize' and 'fontfamily' to control the text appearance
8224	bpr	1111	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
7614	schaersvoo	1112	@ 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)
		1113	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
8224	bpr	1114	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
7614	schaersvoo	1115	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		1116	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
8224	bpr	1117	@ may be combined with keyword 'userinput_xy' or
7653	schaersvoo	1118	@ 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	1119	*/
		1120	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
		1121	canvas_error("Only one userdraw primitive may be used: read documentation !!");
		1122	}
8074	schaersvoo	1123	reply_precision = precision;
7614	schaersvoo	1124	use_userdraw = TRUE;
8130	schaersvoo	1125	fprintf(js_include_file,"\n<!-- begin userdraw mouse events -->\nuserdraw_x = new Array();userdraw_y = new Array();userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};if(wims_status != \"done\"){canvas_div.addEventListener(\"mousedown\",user_draw,false);canvas_div.addEventListener(\"mousemove\",user_drag,false);canvas_div.addEventListener(\"touchstart\",user_draw,false);canvas_div.addEventListener(\"touchmove\",user_drag,false);}\n<!-- end userdraw mouse events -->",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
7614	schaersvoo	1126	draw_type = get_string_argument(infile,0);
		1127	stroke_color = get_color(infile,1);
		1128	if( strcmp(draw_type,"point") == 0 ){
		1129	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1130	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	1131	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	1132	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1133	if(use_input_xy == 1){
7652	schaersvoo	1134	add_input_circle(js_include_file,1,1);
		1135	add_input_xy(js_include_file,canvas_root_id);
		1136	}
7614	schaersvoo	1137	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);
		1138	}
		1139	else
		1140	if( strcmp(draw_type,"points") == 0 ){
		1141	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1142	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	1143	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	1144	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1145	if(use_input_xy == 1){
7652	schaersvoo	1146	add_input_circle(js_include_file,1,2);
		1147	add_input_xy(js_include_file,canvas_root_id);
		1148	}
7614	schaersvoo	1149	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);
		1150	}
		1151	else
		1152	if( strcmp(draw_type,"segment") == 0 ){
		1153	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1154	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	1155	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	1156	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1157	if(use_input_xy == 1){
7652	schaersvoo	1158	add_input_segment(js_include_file,1);
		1159	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1160	}
7614	schaersvoo	1161	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1162	}
		1163	else
7663	schaersvoo	1164	if( strcmp(draw_type,"polyline") == 0 ){
		1165	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
7876	schaersvoo	1166	if(reply_format == 0){reply_format = 23;}
8071	schaersvoo	1167	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7780	schaersvoo	1168	if( use_input_xy == 1 ){
		1169	add_input_polyline(js_include_file);
		1170	add_input_xy(js_include_file,canvas_root_id);
7663	schaersvoo	1171	}
		1172	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1173	}
		1174	else
7614	schaersvoo	1175	if( strcmp(draw_type,"segments") == 0 ){
		1176	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1177	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	1178	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	1179	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1180	if(use_input_xy == 1){
7652	schaersvoo	1181	add_input_segment(js_include_file,2);
		1182	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1183	}
7614	schaersvoo	1184	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1185	}
		1186	else
		1187	if( strcmp(draw_type,"circle") == 0 ){
		1188	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1189	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	1190	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
8071	schaersvoo	1191	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1192	if(use_input_xy == 1){
7652	schaersvoo	1193	add_input_circle(js_include_file,2,1);
		1194	add_input_xyr(js_include_file,canvas_root_id);
		1195	}
7614	schaersvoo	1196	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]);
		1197	}
		1198	else
		1199	if( strcmp(draw_type,"circles") == 0 ){
		1200	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	1201	if(reply_format == 0){reply_format = 10;}
7614	schaersvoo	1202	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		1203	add_js_circles(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1204	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1205	if(use_input_xy == 1){
7652	schaersvoo	1206	add_input_circle(js_include_file,2,2);
		1207	add_input_xyr(js_include_file,canvas_root_id);
		1208	}
7614	schaersvoo	1209	}
		1210	else
		1211	if(strcmp(draw_type,"crosshair") == 0 ){
		1212	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	1213	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	1214	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1215	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	1216	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1217	if(use_input_xy == 1){
7654	schaersvoo	1218	add_input_crosshair(js_include_file,1);
		1219	add_input_xy(js_include_file,canvas_root_id);
		1220	}
7614	schaersvoo	1221	}
		1222	else
		1223	if(strcmp(draw_type,"crosshairs") == 0 ){
		1224	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	1225	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	1226	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1227	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
8071	schaersvoo	1228	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	1229	if(use_input_xy == 1){
7654	schaersvoo	1230	add_input_crosshair(js_include_file,2);
		1231	add_input_xy(js_include_file,canvas_root_id);
		1232	}
7614	schaersvoo	1233	}
		1234	else
		1235	if(strcmp(draw_type,"freehandline") == 0 ){
		1236	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1237	if(reply_format == 0){reply_format = 6;}
8224	bpr	1238	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	1239	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1240	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1241	}
		1242	else
		1243	if(strcmp(draw_type,"freehandlines") == 0 ){
		1244	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1245	if(reply_format == 0){reply_format = 6;}
8224	bpr	1246	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	1247	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1248	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1249	}
		1250	else
		1251	if(strcmp(draw_type,"path") == 0 ){
		1252	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1253	if(reply_format == 0){reply_format = 6;}
8224	bpr	1254	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	1255	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1256	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1257	}
		1258	else
		1259	if(strcmp(draw_type,"paths") == 0 ){
		1260	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1261	if(reply_format == 0){reply_format = 6;}
8224	bpr	1262	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	1263	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1264	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1265	}
		1266	else
		1267	if(strcmp(draw_type,"arrows") == 0 ){
		1268	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1269	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1270	add_js_arrows(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	1271	if(use_input_xy == 1){
7654	schaersvoo	1272	add_input_arrow(js_include_file,2);
		1273	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1274	}
8071	schaersvoo	1275	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1276	}
		1277	else
7874	schaersvoo	1278	if(strcmp(draw_type,"arrows2") == 0 ){
		1279	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1280	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1281	add_js_arrows(js_include_file,2,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	1282	if(use_input_xy == 1){
7874	schaersvoo	1283	add_input_arrow(js_include_file,1);
		1284	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1285	}
8071	schaersvoo	1286	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	1287	}
		1288	else
		1289	if(strcmp(draw_type,"arrow2") == 0 ){
		1290	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1291	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1292	add_js_arrows(js_include_file,1,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	1293	if(use_input_xy == 1){
7874	schaersvoo	1294	add_input_arrow(js_include_file,1);
		1295	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1296	}
8071	schaersvoo	1297	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	1298	}
		1299	else
7614	schaersvoo	1300	if(strcmp(draw_type,"arrow") == 0 ){
		1301	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	1302	if(reply_format == 0){reply_format = 11;}
7874	schaersvoo	1303	add_js_arrows(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
8224	bpr	1304	if(use_input_xy == 1){
7654	schaersvoo	1305	add_input_arrow(js_include_file,1);
		1306	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1307	}
8071	schaersvoo	1308	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1309	}
		1310	else
		1311	if(strcmp(draw_type,"polygon") == 0){
		1312	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1313	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1314	add_js_poly(js_include_file,-1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1315	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1316	if(use_input_xy == 2){
7780	schaersvoo	1317	add_textarea_polygon(js_include_file);
		1318	add_textarea_xy(js_include_file,canvas_root_id);
7746	schaersvoo	1319	}
7614	schaersvoo	1320	}
8224	bpr	1321	else
7614	schaersvoo	1322	if(strncmp(draw_type,"poly",4) == 0){
		1323	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		1324	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1325	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1326	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	1327	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1328	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1329	}
8224	bpr	1330	else
7614	schaersvoo	1331	if(strcmp(draw_type,"triangle") == 0){
		1332	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	1333	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1334	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	1335	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1336	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1337	}
8224	bpr	1338	else
7989	schaersvoo	1339	if( strcmp(draw_type,"hline") == 0 ){
		1340	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1341	if(reply_format == 0){reply_format = 11;}
		1342	add_js_hlines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1343	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1344	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1345	}
		1346	else
		1347	if( strcmp(draw_type,"hlines") == 0 ){
		1348	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1349	if(reply_format == 0){reply_format = 11;}
		1350	add_js_hlines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1351	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1352	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1353	}
		1354	else
		1355	if( strcmp(draw_type,"vline") == 0 ){
		1356	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1357	if(reply_format == 0){reply_format = 11;}
		1358	add_js_hlines(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1359	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1360	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1361	}
		1362	else
		1363	if( strcmp(draw_type,"vlines") == 0 ){
		1364	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1365	if(reply_format == 0){reply_format = 11;}
		1366	add_js_hlines(js_include_file,4,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1367	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1368	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	1369	}
		1370	else
7614	schaersvoo	1371	if( strcmp(draw_type,"line") == 0 ){
		1372	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1373	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	1374	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	1375	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1376	if( use_input_xy == 1 ){
7780	schaersvoo	1377	add_input_line(js_include_file,1);
7747	schaersvoo	1378	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1379	}
8071	schaersvoo	1380	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1381	}
		1382	else
		1383	if( strcmp(draw_type,"lines") == 0 ){
		1384	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1385	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	1386	if(reply_format == 0){reply_format = 11;}
7614	schaersvoo	1387	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1388	if( use_input_xy == 1 ){
7780	schaersvoo	1389	add_input_line(js_include_file,2);
7747	schaersvoo	1390	add_input_x1y1x2y2(js_include_file,canvas_root_id);
7746	schaersvoo	1391	}
8071	schaersvoo	1392	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1393	}
		1394	else
8244	schaersvoo	1395	if( strcmp(draw_type,"demilines") == 0 \|\| strcmp(draw_type,"demilines") == 0 ){
		1396	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1397	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		1398	if(reply_format == 0){reply_format = 11;}
		1399	add_js_demilines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1400	if( use_input_xy == 1 ){
		1401	add_input_demiline(js_include_file,2);
		1402	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1403	}
		1404	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1405	}
		1406	else
		1407	if( strcmp(draw_type,"demiline") == 0 \|\| strcmp(draw_type,"demilines") == 0 ){
		1408	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1409	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		1410	if(reply_format == 0){reply_format = 11;}
		1411	add_js_demilines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1412	if( use_input_xy == 1 ){
		1413	add_input_demiline(js_include_file,1);
		1414	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1415	}
		1416	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1417	}
		1418	else
7614	schaersvoo	1419	if( strcmp(draw_type,"rects") == 0){
		1420	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	1421	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1422	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	1423	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1424	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1425	}
8224	bpr	1426	else
7614	schaersvoo	1427	if( strcmp(draw_type,"roundrects") == 0){
		1428	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	1429	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1430	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	1431	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1432	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1433	}
8224	bpr	1434	else
7614	schaersvoo	1435	if( strcmp(draw_type,"rect") == 0){
		1436	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
7876	schaersvoo	1437	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1438	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	1439	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1440	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1441	}
8224	bpr	1442	else
7614	schaersvoo	1443	if( strcmp(draw_type,"roundrect") == 0){
		1444	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
7876	schaersvoo	1445	if(reply_format == 0){reply_format = 2;}
7614	schaersvoo	1446	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	1447	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1448	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1449	}
		1450	else
8083	schaersvoo	1451	if( strcmp(draw_type,"arcs") == 0){
		1452	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		1453	if(reply_format == 0){reply_format = 25;}
		1454	add_js_arc(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
		1455	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1456	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1457	}
		1458	else
8071	schaersvoo	1459	if( strcmp(draw_type,"arc") == 0){
		1460	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
8083	schaersvoo	1461	if(reply_format == 0){reply_format = 25;}
		1462	add_js_arc(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
8071	schaersvoo	1463	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1464	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1465	}
		1466	else
7614	schaersvoo	1467	if( strcmp(draw_type,"text") == 0){
8224	bpr	1468	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
7876	schaersvoo	1469	if(reply_format == 0){reply_format = 17;}
8071	schaersvoo	1470	add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity);
7652	schaersvoo	1471	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	1472	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1473	}
8116	schaersvoo	1474	else
		1475	if( strcmp(draw_type,"inputs") == 0){
8224	bpr	1476	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	1477	if(reply_format == 0){reply_format = 27;}
8116	schaersvoo	1478	add_js_inputs(js_include_file,canvas_root_id,2,input_cnt,input_style,line_width);
		1479	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1480	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1481	}
		1482	else
		1483	if( strcmp(draw_type,"input") == 0){
8224	bpr	1484	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	1485	if(reply_format == 0){reply_format = 27;}
8116	schaersvoo	1486	add_js_inputs(js_include_file,canvas_root_id,1,input_cnt,input_style,line_width);
		1487	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		1488	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		1489	}
8193	schaersvoo	1490	else
7614	schaersvoo	1491	{
		1492	canvas_error("unknown drawtype or typo? ");
		1493	}
		1494	reset();
		1495	break;
		1496	case PLOTSTEPS:
		1497	/*
		1498	@ plotsteps a_number
		1499	@ default 150
		1500	@ use with care !
		1501	*/
		1502	plot_steps = (int) (get_real(infile,1));
		1503	break;
		1504	case FONTSIZE:
		1505	/*
		1506	@fontsize font_size
		1507	@default value 12
		1508	*/
		1509	font_size = (int) (get_real(infile,1));
		1510	break;
		1511	case FONTCOLOR:
		1512	/*
		1513	@fontcolor color
		1514	@color: hexcolor or colorname
		1515	@default: black
		1516	@example usage: x/y-axis text
		1517	*/
		1518	font_color = get_color(infile,1);
		1519	break;
		1520	case ANIMATE:
		1521	/*
		1522	@animate type
8109	schaersvoo	1523	@REMOVED : this should be done with a slider
7614	schaersvoo	1524	@type may be "point" (nothing else , yet...)
		1525	@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		1526	@will animate a point on the next plot/curve command
		1527	@the curve will not be draw
		1528	@moves repeatedly from xmin to xmax
		1529	*/
		1530	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
		1531	break;
7788	schaersvoo	1532	case LEVELCURVE:
		1533	/*
		1534	@levelcurve color,expression in x/y,l1,l2,...
7792	schaersvoo	1535	@draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
		1536	@the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
		1537	@every individual level curve may be set 'onclick / drag xy' <br />e.g. every single level curve (l1,l2,l3...l_n) has a unique identifier
		1538	@note : the arrays for holding the javascript data are limited in size
		1539	@note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
7788	schaersvoo	1540	*/
7792	schaersvoo	1541	fill_color = get_color(infile,0);
7788	schaersvoo	1542	char *fun1 = get_string_argument(infile,0);
		1543	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1544	i = 0;
		1545	done = FALSE;
		1546	while( !done ){
		1547	double_data[i] = get_real(infile,1);
		1548	i++;
		1549	}
		1550	for(c = 0 ; c < i; c++){
8097	schaersvoo	1551	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,16,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,eval_levelcurve(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision,double_data[c]),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7788	schaersvoo	1552	click_cnt++;
		1553	}
		1554	reset();
		1555	break;
7858	schaersvoo	1556	case TRACE_JSCURVE:
7823	schaersvoo	1557	/*
7858	schaersvoo	1558	@trace_jscurve some_math_function
7823	schaersvoo	1559	@will use a crosshair to trace the jsmath curve
7856	schaersvoo	1560	@two inputfields will display the current x/y-values (numerical evaluation by javascript)
8224	bpr	1561	@default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
7823	schaersvoo	1562	@use linewidth,strokecolor,crosshairsize to adjust the corsshair.
7858	schaersvoo	1563	@the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
7823	schaersvoo	1564	*/
		1565	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7833	schaersvoo	1566	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7858	schaersvoo	1567	if( use_js_math == FALSE){
		1568	add_to_js_math(js_include_file);
		1569	use_js_math = TRUE;
		1570	}
7823	schaersvoo	1571	add_trace_js_mouse(js_include_file,TRACE_CANVAS,canvas_root_id,stroke_color,get_string(infile,1),font_size,stroke_opacity,line_width,crosshair_size);
		1572	break;
		1573	case JSMATH:
		1574	/*
7858	schaersvoo	1575	@jsmath some_math_function
7856	schaersvoo	1576	@will calculate an y-value from a userinput x-value and draws a crosshair on these coordinates.
8224	bpr	1577	@default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
7858	schaersvoo	1578	@example: jsmath sin(x^2)
		1579	@the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x in stead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
7823	schaersvoo	1580	*/
		1581	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7858	schaersvoo	1582	if( use_js_math == FALSE){
		1583	add_to_js_math(js_include_file);
		1584	use_js_math = TRUE;
		1585	}
7823	schaersvoo	1586	add_calc_y(js_include_file,canvas_root_id,get_string(infile,1));
		1587	break;
7858	schaersvoo	1588	case JSCURVE:
		1589	/*
		1590	@jscurve color,formula(x)
		1591	@your function will be plotted by the javascript engine of the client browser.
7983	schaersvoo	1592	@use only basic math in your curve:<br /> sqrt,^,asin,acos,atan,log,pi,abs,sin,cos,tan,e
7858	schaersvoo	1593	@use parenthesis and rawmath : use 2*x in stead of 2x ; use 2^(sin(x))...etc etc<br />use error console to debug any errors...
7981	schaersvoo	1594	@Attention : last "precision" command in the canvasdraw script determines the calculation precision of the javascript curve plot !
7858	schaersvoo	1595	@no validity check is done by wims.
		1596	@zooming & panning are implemented :<br />use command 'zoom color' for mouse driven zooming<br />or use keyword 'setlimits' for inputfields setting xmin/xmax, ymin/ymax
		1597	@use command 'trace_jscurve formula(x)` for tracing
		1598	@use commmand 'jsmath formula(x)` for calculating and displaying indiviual points on the curve
		1599	@can not be set draggable / onclick (yet)
8224	bpr	1600	@commands plotjump / plotstep are not active for 'jscurve'
7858	schaersvoo	1601	*/
		1602	stroke_color = get_color(infile,0);
		1603	if( use_js_math == FALSE){/* add this stuff only once...*/
		1604	add_to_js_math(js_include_file);
		1605	use_js_math = TRUE;
		1606	}
		1607	if( use_js_plot == FALSE){
		1608	use_js_plot = TRUE;
		1609	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		1610	}
		1611	temp = get_string_argument(infile,1);
		1612	string_length = snprintf(NULL,0, "jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1613	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1614	snprintf(tmp_buffer,string_length,"jsplot(%d,\"%s\",%d,\"%s\",%.2f,%d,%d,%d); ",JSPLOT_CANVAS+use_js_plot,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1615	add_to_buffer(tmp_buffer);
		1616	use_js_plot++; /* we need to create multiple canvasses, so we may zoom and pan ?? */
		1617
		1618	break;
7614	schaersvoo	1619	case CURVE:
		1620	/*
		1621	@curve color,formula(x)
		1622	@plot color,formula(x)
		1623	@use command trange before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1624	@use command "precision" to increase the number of digits of the plotted points
		1625	@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
		1626	@may be set draggable / onclick
		1627	*/
		1628	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1629	use_parametric = FALSE;
		1630	stroke_color = get_color(infile,0);
		1631	char *fun1 = get_string_argument(infile,0);
		1632	char *fun2 = get_string_argument(infile,1);
		1633	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
8097	schaersvoo	1634	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,animation_type,eval_parametric(xsize,ysize,fun1,fun2,xmin,xmax,ymin,ymax,tmin,tmax,plot_steps,precision),2line_width,2line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	1635	click_cnt++;
		1636	}
		1637	else
		1638	{
		1639	stroke_color = get_color(infile,0);
		1640	char *fun1 = get_string_argument(infile,1);
8224	bpr	1641	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
8097	schaersvoo	1642	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,animation_type,eval(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	1643	click_cnt++;
		1644	}
7788	schaersvoo	1645	animation_type = 9;/* reset to curve plotting without animation */
7614	schaersvoo	1646	reset();
		1647	break;
		1648	case FLY_TEXT:
		1649	/*
		1650	@ text fontcolor,x,y,font,text_string
		1651	@ font may be described by keywords : giant,huge,normal,small,tiny
8224	bpr	1652	@ use command 'fontsize' to increase base fontsize for these keywords
7614	schaersvoo	1653	@ may be set "onclick" or "drag xy"
		1654	@ backwards compatible with flydraw
		1655	@ unicode supported: text red,0,0,huge,\\u2232
7874	schaersvoo	1656	@ use command 'string' combined with 'fontfamily' for a more fine grained control over html5 canvas text element
		1657	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
7614	schaersvoo	1658	*/
		1659	for(i = 0; i < 5 ;i++){
		1660	switch(i){
		1661	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		1662	case 1: double_data[0] = get_real(infile,0);break; /* x */
		1663	case 2: double_data[1] = get_real(infile,0);break; /* y */
		1664	case 3: fly_font = get_string_argument(infile,0);
		1665	if(strcmp(fly_font,"giant") == 0){
		1666	font_size = (int)(font_size + 24);
		1667	}
		1668	else
		1669	{
		1670	if(strcmp(fly_font,"huge") == 0){
		1671	font_size = (int)(font_size + 14);
		1672	}
		1673	else
		1674	{
		1675	if(strcmp(fly_font,"large") == 0){
		1676	font_size = (int)(font_size + 6);
		1677	}
		1678	else
		1679	{
		1680	if(strcmp(fly_font,"small") == 0){
		1681	font_size = (int)(font_size - 4);
		1682	if(font_size<0){font_size = 8;}
		1683	}
		1684	}
		1685	}
		1686	}
		1687	break; /* font_size ! */
8224	bpr	1688	case 4:
7614	schaersvoo	1689	temp = get_string_argument(infile,1);
		1690	decimals = find_number_of_digits(precision);
8097	schaersvoo	1691	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	1692	click_cnt++;reset();break;
		1693	default:break;
		1694	}
		1695	}
		1696	break;
		1697	case FLY_TEXTUP:
		1698	/*
		1699	@ textup fontcolor,x,y,font,text_string
		1700	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1701	@ font may be described by keywords : giant,huge,normal,small,tiny
8224	bpr	1702	@ use command 'fontsize' to increase base fontsize for the keywords
7614	schaersvoo	1703	@ backwards compatible with flydraw
		1704	@ unicode supported: textup red,0,0,huge,\\u2232
		1705	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
7874	schaersvoo	1706	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
7614	schaersvoo	1707	*/
8224	bpr	1708	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
7614	schaersvoo	1709	for(i = 0; i<5 ;i++){
		1710	switch(i){
		1711	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1712	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1713	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1714	case 3: fly_font = get_string_argument(infile,0);
		1715	if(strcmp(fly_font,"giant") == 0){
		1716	font_size = (int)(font_size + 24);
		1717	}
		1718	else
		1719	{
		1720	if(strcmp(fly_font,"huge") == 0){
		1721	font_size = (int)(font_size + 14);
		1722	}
		1723	else
		1724	{
		1725	if(strcmp(fly_font,"large") == 0){
		1726	font_size = (int)(font_size + 6);
		1727	}
		1728	else
		1729	{
		1730	if(strcmp(fly_font,"small") == 0){
		1731	font_size = (int)(font_size - 4);
		1732	if(font_size<0){font_size = 8;}
		1733	}
		1734	}
		1735	}
		1736	}
		1737	break; /* font_size ! */
8224	bpr	1738	case 4:
7614	schaersvoo	1739	decimals = find_number_of_digits(precision);
		1740	temp = get_string_argument(infile,1);
8071	schaersvoo	1741	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1742	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	1743	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1744	add_to_buffer(tmp_buffer);
		1745	break;
		1746	default:break;
		1747	}
		1748	}
		1749	reset();
		1750	break;
		1751	case FONTFAMILY:
		1752	/*
		1753	@ fontfamily font_description
		1754	@ set the font family; for browsers that support it
		1755	@ font_description: Ariel ,Courier, Helvetica etc
		1756	@ 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
		1757	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1758	*/
		1759	font_family = get_string(infile,1);
		1760	break;
		1761	case STRINGUP:
8224	bpr	1762	/*
		1763	@ stringup color,x,y,rotation_degrees,the text string
7614	schaersvoo	1764	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1765	@ unicode supported: stringup red,0,0,45,\\u2232
		1766	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		1767
		1768	*/
		1769	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		1770	for(i=0;i<6;i++){
		1771	switch(i){
		1772	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1773	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1774	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1775	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		1776	case 4: decimals = find_number_of_digits(precision);
		1777	temp = get_string_argument(infile,1);
8071	schaersvoo	1778	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1779	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	1780	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix);
7614	schaersvoo	1781	add_to_buffer(tmp_buffer);
		1782	break;
		1783	default:break;
		1784	}
		1785	}
		1786	reset();
		1787	break;
		1788	case STRING:
8224	bpr	1789	/*
7614	schaersvoo	1790	@ string color,x,y,the text string
		1791	@ may be set "onclick" or "drag xy"
		1792	@ unicode supported: string red,0,0,\\u2232
8224	bpr	1793	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
7614	schaersvoo	1794	*/
		1795	for(i=0;i<5;i++){
		1796	switch(i){
		1797	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1798	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		1799	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		1800	case 3: decimals = find_number_of_digits(precision);
		1801	temp = get_string_argument(infile,1);
		1802	decimals = find_number_of_digits(precision);
8097	schaersvoo	1803	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt);
7614	schaersvoo	1804	click_cnt++;reset();break;
		1805	default:break;
		1806	}
		1807	}
		1808	break;
7983	schaersvoo	1809	case CENTERSTRING:
8224	bpr	1810	/*
7983	schaersvoo	1811	@ centerstring color,y-value,the text string
7984	schaersvoo	1812	@ title color,y-value,the text string
7983	schaersvoo	1813	@ draw a string centered on the canvas at y = y-value
		1814	@ can not set "onclick" or "drag xy" (...)
		1815	@ unicode supported: centerstring red,5,\\u2232
8224	bpr	1816	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
7983	schaersvoo	1817	*/
		1818	if( js_function[DRAW_CENTERSTRING] != 1 ){ js_function[DRAW_CENTERSTRING] = 1;}
		1819	for(i=0;i<3;i++){
		1820	switch(i){
		1821	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1822	case 1: double_data[0] = get_real(infile,0);break; /* y in xrange*/
		1823	case 2: temp = get_string_argument(infile,1);
		1824	/* draw_text = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text) */
		1825	decimals = find_number_of_digits(precision);
		1826	string_length = snprintf(NULL,0,
		1827	"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		1828	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1829	snprintf(tmp_buffer,string_length,"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		1830	add_to_buffer(tmp_buffer);
		1831	break;
		1832	default:break;
		1833	}
		1834	}
		1835	break;
7614	schaersvoo	1836	case MATHML:
		1837	/*
		1838	@ mathml x1,y1,x2,y2,mathml_string
8224	bpr	1839	@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
7614	schaersvoo	1840	@ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
8224	bpr	1841	@ if inputfields are incorporated in mathml (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_mathml();<br />attention: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
7614	schaersvoo	1842	@ If other inputfields (command input / command textarea) or userdraw is performed, the function read_canvas() will not read mathml. Use some generic function to read it....
8224	bpr	1843
7614	schaersvoo	1844	*/
		1845	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1846	for(i=0;i<5;i++){
		1847	switch(i){
		1848	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1849	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1850	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1851	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1852	case 4: decimals = find_number_of_digits(precision);
8224	bpr	1853	if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
7614	schaersvoo	1854	temp = get_string(infile,1);
		1855	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1856	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);
		1857	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1858	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);
		1859	add_to_buffer(tmp_buffer);
8224	bpr	1860	/*
		1861	in case inputs are present , trigger adding the read_mathml()
7614	schaersvoo	1862	if no other reply_format is defined
		1863	note: all other reply types will include a reading of elements with id='mathml'+p)
		1864	*/
		1865	if(strstr(temp,"mathml0") != NULL){
7876	schaersvoo	1866	if(reply_format == 0 ){reply_format = 16;} /* no other reply type is defined */
7614	schaersvoo	1867	}
		1868	break;
		1869	default:break;
		1870	}
		1871	}
		1872	reset();
		1873	break;
		1874	case HTTP:
		1875	/*
		1876	@http x1,y1,x2,y2,http://some_adress.com
8224	bpr	1877	@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
7614	schaersvoo	1878	@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1879	@can not be 'set onclick' or 'drag xy'
		1880	*/
8224	bpr	1881	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
7614	schaersvoo	1882	for(i=0;i<5;i++){
		1883	switch(i){
		1884	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1885	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1886	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1887	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1888	case 4: decimals = find_number_of_digits(precision);
		1889	temp = get_string(infile,1);
		1890	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1891	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);
		1892	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1893	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);
		1894	add_to_buffer(tmp_buffer);
		1895	break;
		1896	}
		1897	}
		1898	reset();
		1899	break;
		1900	case HTML:
		1901	/*
		1902	@ html x1,y1,x2,y2,html_string
		1903	@ all tags are allowed
		1904	@ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1905	@ if inputfields are incorporated (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_canvas(); <br />If other inputfields (command input / command textarea) or userdraw is performed, these values will NOT be read as well.
8224	bpr	1906
7614	schaersvoo	1907	note: uses the same code as 'mathml'
		1908	*/
		1909	break;
		1910	case X_AXIS_STRINGS:
		1911	/*
		1912	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1913	@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1914	@ use these x-axis values in stead of default xmin...xmax
		1915	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1916	@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
		1917	@ 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
		1918	@ 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
		1919	*/
		1920	temp = get_string(infile,1);
		1921	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1922	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1923	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		1924	use_axis_numbering = 1;
		1925	break;
		1926	case Y_AXIS_STRINGS:
		1927	/*
		1928	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1929	@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1930	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1931	@ use these y-axis values in stead of default ymin...ymax
		1932	@ 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
		1933	*/
		1934	temp = get_string(infile,1);
		1935	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1936	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1937	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		1938	use_axis_numbering = 1;
		1939	break;
8224	bpr	1940
7614	schaersvoo	1941	case AXIS_NUMBERING:
		1942	/*
8224	bpr	1943	@ axisnumbering
8101	schaersvoo	1944	@ keyword, no arguments required
7614	schaersvoo	1945	*/
		1946	use_axis_numbering = 1;
		1947	break;
		1948	case AXIS:
		1949	/*
		1950	@ axis
8101	schaersvoo	1951	@ keyword, no arguments required
7614	schaersvoo	1952
		1953	*/
		1954	use_axis = TRUE;
		1955	break;
8101	schaersvoo	1956	case KILLSLIDER:
		1957	/*
		1958	@ killslider
		1959	@ keyword, no arguments required
		1960	@ ends grouping of object under a preciously defined slider
		1961	*/
		1962	slider = 0;
		1963	break;
8071	schaersvoo	1964	case SLIDER:
		1965	/*
8097	schaersvoo	1966	@ slider start_value,end_value,width px,height px,type,label
		1967	@ type: xy,x,y,angle
8112	schaersvoo	1968	@ if a value display is desired, use<br />type:xy display,x display,y display,angle radian,angle degree
		1969	@ is a unit for x / y value display is needed, use commands 'xunit' and / or 'yunit'
8101	schaersvoo	1970	@ use commmand 'slider' before draggable/clickable objects.
		1971	@ a slider will affect all draggable objects after the 'slider' command...<br />and can be used to group translate / rotate several objects...<br />until a next 'slider' or keyword 'killslider'
8097	schaersvoo	1972	@ amount of sliders is not limited.
8101	schaersvoo	1973	@ javascript:read_dragdrop(); will return an array with 'object_number:slider_value'
8097	schaersvoo	1974	@ type=xy: will produce a 2D 'slider' [rectangle width x heigh px] in your web page
		1975	@ every draggable object may have it's own slider (no limit in amount of sliders)
8071	schaersvoo	1976	@ label: some slider text
		1977	@ use fillcolor for slider ball
		1978	@ use strokecolor for slider bar
8097	schaersvoo	1979	@ use fontfamily / fontcolor to set used fonts
8071	schaersvoo	1980	@ use opacity (only fill opacity will be used) to set transparency
8111	schaersvoo	1981	@ the slider canvas will be added to the 'tooltip div' : so incompatible with command tooltip ; setlimits etc
8071	schaersvoo	1982	*/
		1983	for(i=0; i<6 ; i++){
		1984	switch(i){
		1985	case 0: double_data[0] = get_real(infile,0);break; /* start value */
		1986	case 1: double_data[1] = get_real(infile,0);break; /* end value */
		1987	case 2: int_data[0] = (int)(get_real(infile,0));break; /* width */
		1988	case 3: int_data[1] = (int)(get_real(infile,0));break; /* height */
8111	schaersvoo	1989	case 4: temp = get_string_argument(infile,0); /* type : xy,x,y,angle */
8112	schaersvoo	1990	/* xy display*/
		1991	if(strstr(temp,"xy")!= 0){
8097	schaersvoo	1992	slider = 4;
		1993	}
		1994	else
		1995	{
8112	schaersvoo	1996	if(strstr(temp,"x") != 0){
8097	schaersvoo	1997	slider = 1;
		1998	}
		1999	else
		2000	{
8112	schaersvoo	2001	if(strstr(temp,"y") != 0){
8097	schaersvoo	2002	slider = 2;
		2003	}
		2004	else
		2005	{
8112	schaersvoo	2006	if(strstr(temp,"angle") != 0){ /* angle diplay radian */
8097	schaersvoo	2007	slider = 3;
		2008	}
		2009	else
8112	schaersvoo	2010	{
8097	schaersvoo	2011	canvas_error("slider types may be : x , y , xy , angle");
8112	schaersvoo	2012	}
8097	schaersvoo	2013	}
		2014	}
		2015	}
8112	schaersvoo	2016	if(strstr(temp,"display")!=0){
		2017	use_slider_display = 1; /* show x xy values in canvas window */
		2018	}
		2019	else
		2020	{
		2021	if(strstr(temp,"degree")!= 0){
		2022	use_slider_display = 2; /* show angle values in canvas window */
		2023	}
		2024	else
		2025	{
		2026	if(strstr(temp,"radian")!=0){
		2027	use_slider_display = 3; /* show radian values in canvas window */
		2028	}
		2029	}
		2030	}
		2031	if(use_slider_display != 0 && slider_cnt == 0){ /add just once the display js-code /
		2032	add_slider_display(js_include_file,canvas_root_id,precision,font_size,font_color,stroke_opacity);
		2033	}
8097	schaersvoo	2034	break;
		2035	case 5: /* some string used for slider description */
8071	schaersvoo	2036	slider_cnt++;
8097	schaersvoo	2037	if(slider == 4){
8112	schaersvoo	2038	add_xyslider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display );
8097	schaersvoo	2039	}else{
8112	schaersvoo	2040	add_slider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
8097	schaersvoo	2041	}
8071	schaersvoo	2042	break;
		2043	}
8097	schaersvoo	2044	}
8071	schaersvoo	2045	break;
7654	schaersvoo	2046	case SGRAPH:
		2047	/*
		2048	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		2049	@ primitive implementation of a 'broken scale' graph...
7976	schaersvoo	2050	@ not very versatile: only usable in combination with userdraw <br />eg no other objects will obey this "coordinate system"<br />if you want to place an object into this coordinate system, be aware that 10% or 20% of xsize and/or ysize is 'lost'.<br />Use these "formulas" to recalculate the virtual coordinates:<br />factor=0.8 in case xstart != xmin (or ystart != ymin)<br />factor=0.9 in case xstart = xmin (or ystart = ymin)<br />px_x_point = ((factorxsize)/(xmax - xstart))(x_point - xmax)+xsize<br />x_recalculated = px(xmax - xmin)/xsize + $xmin<br />px_y_point = -1factory_pointysize/(ymax - ystart) + ymaxfactorysize/(ymax - ystart)<br />y_recalculated = ymax - py*(ymax - ymin)/ysize<br />
8224	bpr	2051	@ example:<br />size 400,400<br />xrange 0,10000<br />yrange 0,100<br />sgraph 9000,50,100,10,4,4,grey,blue<br />userinput_xy<br />linewidth 2<br />userdraw segments,red
7654	schaersvoo	2052	*/
8224	bpr	2053	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
7654	schaersvoo	2054	for(i = 0 ; i < 8 ;i++){
		2055	switch(i){
		2056	case 0:double_data[0] = get_real(infile,0);break;
		2057	case 1:double_data[1] = get_real(infile,0);break;
		2058	case 2:double_data[2] = get_real(infile,0);break;
		2059	case 3:double_data[3] = get_real(infile,0);break;
		2060	case 4:int_data[0] = (int)(get_real(infile,0));break;
		2061	case 5:int_data[1] = (int)(get_real(infile,0));break;
		2062	case 6:stroke_color = get_color(infile,0);break;
		2063	case 7:font_color = get_color(infile,1);
7658	schaersvoo	2064	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	2065	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7658	schaersvoo	2066	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	2067	add_to_buffer(tmp_buffer);
		2068	break;
		2069	default:break;
		2070	}
		2071	}
		2072	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
		2073	break;
7614	schaersvoo	2074	case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
		2075	/*
		2076	@ grid step_x,step_y,gridcolor
		2077	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		2078	@ 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	2079	@ 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	2080	@ can not be set "onclick" or "drag xy"
		2081	@ 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')
		2082	@ 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')
		2083	@ 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')
		2084	*/
7729	schaersvoo	2085	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
7614	schaersvoo	2086	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		2087	for(i=0;i<4;i++){
		2088	switch(i){
		2089	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		2090	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		2091	case 2:
		2092	if( use_axis == TRUE ){
		2093	stroke_color = get_color(infile,0);
		2094	done = FALSE;
		2095	int_data[0] = (int) (get_real(infile,0));/* xminor */
		2096	int_data[1] = (int) (get_real(infile,0));/* yminor */
		2097	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		2098	fill_color = get_color(infile,1); /* used as axis_color*/
		2099	}
		2100	else
		2101	{
		2102	int_data[0] = 1;
		2103	int_data[1] = 1;
		2104	stroke_color = get_color(infile,1);
		2105	fill_color = stroke_color;
		2106	}
		2107	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	2108	/* set snap_x snap_y values in pixels */
7988	schaersvoo	2109	fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
8071	schaersvoo	2110	string_length = snprintf(NULL,0, "draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
7614	schaersvoo	2111	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	2112	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
7614	schaersvoo	2113	add_to_buffer(tmp_buffer);
		2114	break;
		2115	}
		2116	}
		2117	reset();
		2118	break;
		2119	case OPACITY:
		2120	/*
		2121	@ opacity 0-255,0-255
		2122	@
		2123	*/
		2124	for(i = 0 ; i<2;i++){
		2125	switch(i){
		2126	case 0: double_data[0]=(int)(get_real(infile,0));break;
		2127	case 1: double_data[1]=(int)(get_real(infile,1));break;
		2128	default: break;
		2129	}
		2130	}
		2131	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 ? */
		2132	stroke_opacity = (double) (0.0039215double_data[0]);/ 0.0 - 1.0 */
		2133	fill_opacity = (double) (0.0039215double_data[1]);/ 0.0 - 1.0 */
		2134	break;
		2135	case ROTATE:
		2136	/*
		2137	@rotate rotation_angle
8097	schaersvoo	2138	@angle in degrees
7614	schaersvoo	2139	*/
		2140	use_rotate = TRUE;
8097	schaersvoo	2141	angle = -1(get_real(infile,1));/ -1 : to be compatible with Flydraw... */
7614	schaersvoo	2142	break;
7785	schaersvoo	2143	case KILLAFFINE:
		2144	/*
		2145	@ killaffine
		2146	@ keyword : resets the transformation matrix to 1,0,0,1,0,0
		2147	*/
		2148	use_affine = FALSE;
8224	bpr	2149	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
7785	schaersvoo	2150	break;
		2151	case AFFINE:
		2152	/*
		2153	@affine a,b,c,d,tx,ty
8224	bpr	2154	@ defines a transformation matrix for subsequent objects
7785	schaersvoo	2155	@ use keyword 'killaffine' to end the transformation
		2156	@ note 1: only 'draggable' / 'noclick' objects can be transformed.
		2157	@ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
		2158	@ note 3: no matrix operations on the transformation matrix implemented (yet)
		2159	@ a : Scales the drawings horizontally
		2160	@ b : Skews the drawings horizontally
		2161	@ c : Skews the drawings vertically
		2162	@ d : Scales the drawings vertically
8071	schaersvoo	2163	@ tx: Moves the drawings horizontally in xrange coordinate system
8224	bpr	2164	@ ty: Moves the drawings vertically in yrange coordinate system
8071	schaersvoo	2165	@ the data precision is 2 decimals (printf : %2.f)
7785	schaersvoo	2166	*/
		2167	for(i = 0 ; i<6;i++){
		2168	switch(i){
		2169	case 0: double_data[0] = get_real(infile,0);break;
		2170	case 1: double_data[1] = get_real(infile,0);break;
		2171	case 2: double_data[2] = get_real(infile,0);break;
		2172	case 3: double_data[3] = get_real(infile,0);break;
8071	schaersvoo	2173	case 4: double_data[4] = get_real(infile,0);break;
		2174	case 5: double_data[5] = get_real(infile,1);
7785	schaersvoo	2175	use_affine = TRUE;
8071	schaersvoo	2176	string_length = snprintf(NULL,0, "[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]xsize/(xmax - xmin),-1double_data[5]*ysize/(ymax - ymin));
7785	schaersvoo	2177	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
8224	bpr	2178	snprintf(affine_matrix,string_length,"[%.2f,%.2f,%.2f,%.2f,%.2f,%.2f] ",double_data[0],double_data[1],double_data[2],double_data[3],double_data[4]xsize/(xmax - xmin),-1double_data[5]*ysize/(ymax - ymin));
8071	schaersvoo	2179	break;
7785	schaersvoo	2180	default: break;
		2181	}
		2182	}
		2183	break;
7614	schaersvoo	2184	case KILLTRANSLATION:
		2185	/*
		2186	killtranslation
		2187	*/
8071	schaersvoo	2188	use_affine = FALSE;
8224	bpr	2189	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
7614	schaersvoo	2190	break;
		2191	case TRANSLATION:
		2192	/*
		2193	@translation tx,ty
8071	schaersvoo	2194	@will translate the next object tx in xrange and ty in yrange
		2195	@uase command 'killtranstation' to end the command
7614	schaersvoo	2196	*/
8071	schaersvoo	2197	for(i = 0 ; i<2;i++){
		2198	switch(i){
		2199	case 0: double_data[0] = get_real(infile,0);break;
		2200	case 1: double_data[1] = get_real(infile,1);
		2201	use_affine = TRUE;
		2202	string_length = snprintf(NULL,0, "[1,0,0,1,%.2f,%.2f] ",double_data[0]xsize/(xmax - xmin),-1double_data[1]*ysize/(ymax - ymin));
		2203	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		2204	snprintf(affine_matrix,string_length,"[1,0,0,1,%.2f,%.2f] ",double_data[0]xsize/(xmax - xmin),-1double_data[1]*ysize/(ymax - ymin));
		2205	break;
		2206	default: break;
		2207	}
		2208	}
		2209	break;
		2210
7614	schaersvoo	2211	case DASHED:
		2212	/*
		2213	@ keyword "dashed"
		2214	@ next object will be drawn with a dashed line
		2215	@ change dashing scheme by using command "dashtype int,int)
		2216	*/
		2217	use_dashed = TRUE;
		2218	break;
		2219	case FILLED:
		2220	/*
8224	bpr	2221	@ keyword "filled"
		2222	@ the next 'fillable' object (only) will be filled
7614	schaersvoo	2223	@ use command "fillcolor color" to set fillcolor
		2224	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		2225	@ 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 !
		2226	*/
		2227	use_filled = TRUE;
		2228	break;
		2229	case STYLE:
		2230	/*
		2231	@highlight color,opacity,linewidth
		2232	@ NOT IMPLEMENTED
		2233	@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
		2234	*/
		2235	break;
		2236	case FILLCOLOR:
		2237	/*
		2238	@ fillcolor colorname or #hex
		2239	@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		2240	@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		2241	*/
		2242	fill_color = get_color(infile,1);
		2243	break;
		2244	case STROKECOLOR:
		2245	/*
		2246	@ strokecolor colorname or #hex
		2247	@ to be used for commands that do not supply a color argument (like command 'linegraph')
		2248	*/
		2249	stroke_color = get_color(infile,1);
		2250	break;
8224	bpr	2251	case BGIMAGE:
7614	schaersvoo	2252	/*
		2253	@bgimage image_location
		2254	@use an image as background .<br />(we use the background of 'canvas_div' )
		2255	@the background image will be resized to match "width = xsize" and "height = ysize"
		2256	*/
		2257	URL = get_string(infile,1);
		2258	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);
		2259	break;
8224	bpr	2260	case BGCOLOR:
7614	schaersvoo	2261	/*
		2262	@bgcolor colorname or #hex
		2263	@use this color as background of the "div" containing the canvas(es)
		2264	*/
		2265	/* [255,255,255]*/
		2266	bgcolor = get_string(infile,1);
		2267	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		2268	int found = 0;
		2269	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		2270	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		2271	bgcolor = colors[i].hex;
		2272	found = 1;
		2273	break;
		2274	}
		2275	}
		2276	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		2277	}
		2278	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		2279	break;
		2280	case COPY:
		2281	/*
		2282	@ copy x,y,x1,y1,x2,y2,[filename URL]
		2283	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		2284	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
8224	bpr	2285	@ [filename] is the URL of the image
7614	schaersvoo	2286	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		2287	@ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valuid for the next image<br />draggable / non-draggable images may be mixed
8224	bpr	2288	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
7614	schaersvoo	2289
		2290	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		2291	draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
		2292	*/
		2293	for(i = 0 ; i<7;i++){
		2294	switch(i){
		2295	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		2296	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		2297	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		2298	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		2299	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		2300	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		2301	case 6: URL = get_string(infile,1);
		2302	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		2303	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		2304	if( drag_type > -1 ){
		2305	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
7876	schaersvoo	2306	if(reply_format == 0 ){reply_format = 20;}
7614	schaersvoo	2307	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);
		2308	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8224	bpr	2309	snprintf(tmp_buffer,string_length,"drag_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,1);
7614	schaersvoo	2310	drag_type = -1;
		2311	ext_img_cnt++;
		2312	}
		2313	else
		2314	{
		2315	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		2316	/*
		2317	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
		2318	*/
		2319	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]);
		2320	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2321	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]);
		2322	}
		2323	add_to_buffer(tmp_buffer);
		2324	break;
		2325	default: break;
		2326	}
		2327	}
		2328	reset();
		2329	break;
		2330	/*
		2331	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		2332	img Specifies the image, canvas, or video element to use
		2333	sx The x coordinate where to start clipping : x1 = int_data[0]
		2334	sy The y coordinate where to start clipping : x2 = int_data[1]
8224	bpr	2335	swidth The width of the clipped image : int_data[2] - int_data[0]
7614	schaersvoo	2336	sheight The height of the clipped image : int_data[3] - int_data[1]
		2337	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		2338	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		2339	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		2340	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		2341	*/
		2342	case COPYRESIZED:
		2343	/*
		2344	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
8224	bpr	2345	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [ filename], <br />possibly resized,<br />to the region of (dx1,dy1) to (dx2,dy2) in x/y-range
7614	schaersvoo	2346	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		2347	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		2348	@ if command 'drag x/y/xy' is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valuid for the next image<br />draggable / non-draggable images may be mixed
8224	bpr	2349	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
7614	schaersvoo	2350	*/
		2351	for(i = 0 ; i<9;i++){
		2352	switch(i){
		2353	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		2354	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		2355	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		2356	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		2357	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		2358	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		2359	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		2360	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		2361	case 8: URL = get_string(infile,1);
		2362	if( drag_type > -1 ){
		2363	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
7876	schaersvoo	2364	if(reply_format == 0 ){reply_format = 20;}
7614	schaersvoo	2365	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);
		2366	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2367	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);
		2368	drag_type = -1;
		2369	ext_img_cnt++;
		2370	}
		2371	else
		2372	{
		2373	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		2374	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]);
		2375	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2376	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]);
		2377	}
		2378	add_to_buffer(tmp_buffer);
		2379	default: break;
		2380	}
		2381	}
		2382	reset();
		2383	break;
8146	schaersvoo	2384	case CLEARBUTTON:
7614	schaersvoo	2385	/*
8146	schaersvoo	2386	@clearbutton value
		2387	@adds a button to clear the userdraw canvas with text 'value'
8193	schaersvoo	2388	@normally userdraw primitives have the option to use middle/right mouse button on<br /> a point of the object to remove this specific object...this clear button will remove all drawings
8146	schaersvoo	2389	@uses the tooltip placeholder div element: may not be used with command 'intooltip'
8224	bpr	2390	@use command 'inputstyle' to style the button...
7614	schaersvoo	2391	*/
8146	schaersvoo	2392	add_clear_button(js_include_file,canvas_root_id,input_style,get_string(infile,1));
7614	schaersvoo	2393	break;
		2394	case INPUTSTYLE:
		2395	/*
		2396	@ inputstyle style_description
		2397	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		2398	*/
		2399	input_style = get_string(infile,1);
		2400	break;
		2401	case INPUT:
8224	bpr	2402	/*
7614	schaersvoo	2403	@ input x,y,size,editable,value
8224	bpr	2404	@ to set inputfield "readonly", use editable = 0
7614	schaersvoo	2405	@ only active inputfields (editable = 1) will be read with read_canvas();
8224	bpr	2406	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
7614	schaersvoo	2407	@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
		2408	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		2409	*/
8224	bpr	2410	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
7614	schaersvoo	2411	for(i = 0 ; i<5;i++){
		2412	switch(i){
		2413	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		2414	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		2415	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		2416	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
8224	bpr	2417	case 4:
7614	schaersvoo	2418	temp = get_string_argument(infile,1);
		2419	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);
		2420	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2421	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);
		2422	add_to_buffer(tmp_buffer);
		2423	input_cnt++;break;
		2424	default: break;
		2425	}
		2426	}
7876	schaersvoo	2427	if(reply_format == 0 ){reply_format = 15;}
7614	schaersvoo	2428	reset();
		2429	break;
		2430	case TEXTAREA:
8224	bpr	2431	/*
7614	schaersvoo	2432	@ textarea x,y,cols,rows,readonly,value
		2433	@ may be further controlled by "inputstyle"
8224	bpr	2434	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be clearedand set readonly<br />Override this by keyword 'status'
7614	schaersvoo	2435	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		2436	*/
8224	bpr	2437	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
7614	schaersvoo	2438	for(i = 0 ; i<6;i++){
		2439	switch(i){
		2440	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		2441	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		2442	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		2443	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		2444	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		2445	case 5: temp = get_string_argument(infile,1);
		2446	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);
		2447	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2448	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);
		2449	add_to_buffer(tmp_buffer);
		2450	input_cnt++;break;
		2451	default: break;
		2452	}
		2453	}
7876	schaersvoo	2454	if(reply_format == 0 ){reply_format = 15;}
7614	schaersvoo	2455	reset();
		2456	break;
		2457	case MOUSE_PRECISION:
		2458	/*
		2459	@ precision int
8074	schaersvoo	2460	@ 1 = no decimals ; 10 = 1 decimal ; 100 = 2 decimals etc
7614	schaersvoo	2461	@ may be used / changed before every object
8074	schaersvoo	2462	@ In case of user interaction (like 'userdraw') this value will be used to determine the amount of decimals in the reply / answer
7614	schaersvoo	2463	*/
		2464	precision = (int) (get_real(infile,1));
8074	schaersvoo	2465	if(precision < 1 ){precision = 1;};
7614	schaersvoo	2466	break;
7838	schaersvoo	2467	case SETLIMITS:
		2468	/*
8224	bpr	2469	@setlimits
7838	schaersvoo	2470	@keyword : if set, it will produce 4 inputfields for 'xmin,xmax,ymin,ymax' and an 'ok' button
		2471	@may be used for inputfield based zooming / panning
7858	schaersvoo	2472	@use command xlabel / ylabel to change text from xmin to 'xlabel'min etc
8224	bpr	2473	@note:the input value will not be checked on validity
7838	schaersvoo	2474	*/
7956	schaersvoo	2475	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
7838	schaersvoo	2476	add_setlimits(js_include_file,canvas_root_id);
		2477	/* add_setlimits provides 'fprintf(js_include_file,"use_pan_and_zoom = 1;");' */
		2478	use_pan_and_zoom = TRUE;
		2479	done = TRUE;
		2480	break;
7614	schaersvoo	2481	case ZOOM:
		2482	/*
		2483	@ zoom button_color
		2484	@ introduce a controlpanel at the lower right corner
		2485	@ 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
		2486	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		2487	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
8224	bpr	2488	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		2489	@ NOTE: use command 'zoom' at the end of your script code (the same is true for commanmd 'mouse')
7614	schaersvoo	2490	@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
		2491	@ 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 !!
		2492	*/
7653	schaersvoo	2493	fprintf(js_include_file,"use_pan_and_zoom = 1;");
7797	schaersvoo	2494	use_pan_and_zoom = TRUE;
7988	schaersvoo	2495	stroke_color = get_color(infile,1);
7614	schaersvoo	2496	/* we use BG_CANVAS (0) */
7988	schaersvoo	2497	add_zoom_buttons(js_include_file,canvas_root_id,stroke_color,stroke_opacity);
7614	schaersvoo	2498	done = TRUE;
		2499	break;
		2500	case ONCLICK:
		2501	/*
		2502	@ onclick
		2503	@ keyword, no arguments
		2504	@ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
8224	bpr	2505	@ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
7906	schaersvoo	2506	@ NOTE: not all objects may be set clickable
7614	schaersvoo	2507	*/
8257	schaersvoo	2508	fprintf(js_include_file,"use_dragdrop_reply = true;");
7614	schaersvoo	2509	onclick = 1;
		2510	break;
		2511	case DRAG:
		2512	/*
		2513	@ drag [x][y][xy]
		2514	@ the next object will be draggable in x / y / xy direction
		2515	@ the displacement can be read by 'javascript:read_dragdrop();'
8074	schaersvoo	2516	@ the precision (default 2 decimals) in the student reply may be set with command 'precision'.<br />Use this 'precision' command before this command 'drag x\|y\|xy' !
7906	schaersvoo	2517	@ the answer is : object_number : Xorg : Yorg : Xnew : Ynew<br />wherein object_number is the place of the draggable object in your script.<br />Only draggable object will have an object_number (e.g things like point,crosshair,line,segment,circle,rect,triangle...etc)
7881	schaersvoo	2518	@ use keywordd 'snaptogrid' , 'xsnaptogrid' or 'ysnaptogrid' to switch from free to discrete movement
8224	bpr	2519	@ in case of external images (commands copy / copyresized) the external image can be set draggable ; always xy. <br />The function javascript;read_canvas() will return the xy-coordinates of all images.
7614	schaersvoo	2520	@ 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 !!
		2521	*/
		2522	temp = get_string(infile,1);
8224	bpr	2523	if(strstr(temp,"xy") != NULL ){
7614	schaersvoo	2524	drag_type = 0;
		2525	}
		2526	else
		2527	{
8224	bpr	2528	if(strstr(temp,"x") != NULL ){
7614	schaersvoo	2529	drag_type = 1;
		2530	}
		2531	else
		2532	{
		2533	drag_type = 2;
		2534	}
		2535	}
8257	schaersvoo	2536	fprintf(js_include_file,"dragdrop_precision = %d;use_dragdrop_reply = true;",precision);
7614	schaersvoo	2537	onclick = 2;
8257	schaersvoo	2538
7614	schaersvoo	2539	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
		2540	break;
		2541	case BLINK:
		2542	/*
		2543	@ blink time(seconds)
		2544	@ NOT IMPLEMETED -YET
		2545	*/
		2546	break;
7996	schaersvoo	2547	case XUNIT:
		2548	/*
		2549	@ xunit some_unit_for_x-values
		2550	@ unicode allowed (no html code)
		2551	@ use together with command mousex
		2552	@ will display the cursor x-coordinate 'unit'
		2553	*/
		2554	fprintf(js_include_file,"unit_x = \"%s\";",get_string(infile,1));
		2555	break;
		2556	case YUNIT:
		2557	/*
		2558	@ yunit some_unit_for_y-values
		2559	@ unicode allowed (no html code)
		2560	@ use together with command mousex
		2561	@ will display the cursor y-coordinate 'unit'
		2562	*/
		2563	fprintf(js_include_file,"unit_y = \"%s\";",get_string(infile,1));
		2564	break;
8071	schaersvoo	2565	case MOUSE_DISPLAY:
		2566	/*
8129	schaersvoo	2567	@display x\|y\|xy\|degree\|radius,color,fontsize
		2568	@will display the mouse cursor coordinates as x-only,y-only,(x:y),<br />the radius of a circle (this only in case 'userdraw circle(s),color' !!<br />or the angle in degrees ( rhe angle between x-axis;(0:0);(x:y)
		2569	@use commands 'xunit' and / or 'yunit' to add the units to the mouse values
8071	schaersvoo	2570	@just like commands 'mouse','mousex','mousey','mouse_degree'...only other name)
		2571	*/
		2572	temp = get_string_argument(infile,0);
8112	schaersvoo	2573	if( strstr(temp,"xy") != NULL ){
		2574	int_data[0] = 2;
8071	schaersvoo	2575	}else{
8112	schaersvoo	2576	if( strstr(temp,"y") != NULL ){
		2577	int_data[0] = 1;
8071	schaersvoo	2578	}else{
8112	schaersvoo	2579	if( strstr(temp,"x") != NULL ){
		2580	int_data[0] = 0;
8129	schaersvoo	2581	}else{
8112	schaersvoo	2582	if(strstr(temp,"degree") != NULL){
		2583	int_data[0] = 3;
8071	schaersvoo	2584	}else{
8129	schaersvoo	2585	if(strstr(temp,"radius") != NULL){
		2586	int_data[0] = 4;
		2587	}else{
		2588	int_data[0] = 2;
		2589	}
8112	schaersvoo	2590	}
8129	schaersvoo	2591	}
8071	schaersvoo	2592	}
8129	schaersvoo	2593	}
8071	schaersvoo	2594	stroke_color = get_color(infile,0);
		2595	font_size = (int) (get_real(infile,1));
		2596	tmp_buffer = my_newmem(26);
		2597	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2598	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,int_data[0]);
		2599	break;
		2600	case MOUSE_DEGREE:
		2601	/*
		2602	@ mouse_degree color,fontsize
8099	schaersvoo	2603	@ will display the angle in degrees between x-axis, (0:0) and the cursor (x:y) in 'color' and 'font size'<br /> using default fontfamily Ariel
8071	schaersvoo	2604	@ The angle is positive in QI and QIII and the angle value is negative in QII and QIV
8224	bpr	2605	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
8071	schaersvoo	2606
		2607	*/
		2608	stroke_color = get_color(infile,0);
		2609	font_size = (int) (get_real(infile,1));
		2610	tmp_buffer = my_newmem(26);
		2611	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2612	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,3);
		2613	break;
7991	schaersvoo	2614	case MOUSEX:
		2615	/*
		2616	@ mousex color,fontsize
		2617	@ will display the cursor x-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2618	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
7991	schaersvoo	2619
		2620	*/
		2621	stroke_color = get_color(infile,0);
		2622	font_size = (int) (get_real(infile,1));
		2623	tmp_buffer = my_newmem(26);
		2624	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2625	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,0);
		2626	break;
		2627	case MOUSEY:
		2628	/*
		2629	@ mousey color,fontsize
		2630	@ will display the cursor y-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2631	@ NOTE: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
7991	schaersvoo	2632
		2633	*/
		2634	stroke_color = get_color(infile,0);
		2635	font_size = (int) (get_real(infile,1));
		2636	tmp_buffer = my_newmem(26);
		2637	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2638	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,1);
		2639	break;
7614	schaersvoo	2640	case MOUSE:
		2641	/*
		2642	@ mouse color,fontsize
7991	schaersvoo	2643	@ will display the cursor (x:y) coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
8224	bpr	2644	@ NOTE: use command 'mouse' at the end of your script code (the same is true for commanmd 'zoom')
7988	schaersvoo	2645
7614	schaersvoo	2646	*/
		2647	stroke_color = get_color(infile,0);
		2648	font_size = (int) (get_real(infile,1));
7839	schaersvoo	2649	tmp_buffer = my_newmem(26);
		2650	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
7991	schaersvoo	2651	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,2);
7614	schaersvoo	2652	break;
		2653	case INTOOLTIP:
		2654	/*
		2655	@ intooltip link_text
		2656	@ link_text is a single line (span-element)
		2657	@ link_text may also be an image URL http://some_server/images/my_image.png
		2658	@ link_text may contain HTML markup
		2659	@ the canvas will be displayed in a tooltip on 'link_text'
		2660	@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
		2661	*/
7823	schaersvoo	2662	if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy command");}
7614	schaersvoo	2663	use_tooltip = TRUE;
		2664	tooltip_text = get_string(infile,1);
		2665	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		2666	break;
		2667	case AUDIO:
		2668	/*
		2669	@ audio x,y,w,h,loop,visible,audiofile location
		2670	@ x,y : left top corner of audio element (in xrange / yrange)
		2671	@ w,y : width and height in pixels
		2672	@ loop : 0 or 1 ( 1 = loop audio fragment)
		2673	@ visible : 0 or 1 (1 = show controls)
		2674	@ audio format may be in .mp3 or .ogg
		2675	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		2676	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		2677	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		2678	@ 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 />
		2679	*/
		2680	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		2681	for(i=0;i<7;i++){
		2682	switch(i){
		2683	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2684	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2685	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2686	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2687	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		2688	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
8224	bpr	2689	case 6:
7614	schaersvoo	2690	temp = get_string(infile,1);
		2691	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		2692	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		2693	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);
		2694	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2695	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);
		2696	add_to_buffer(tmp_buffer);
		2697	break;
		2698	default:break;
		2699	}
		2700	}
		2701	reset();
		2702	break;
		2703	case VIDEO:
		2704	/*
		2705	@ video x,y,w,h,videofile location
		2706	@ x,y : left top corner of audio element (in xrange / yrange)
		2707	@ w,y : width and height in pixels
		2708	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		2709	@ video format may be in *.mp4 (todo:other formats)
		2710	*/
		2711	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
		2712	for(i=0;i<5;i++){
		2713	switch(i){
		2714	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2715	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2716	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2717	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2718	case 4: temp = get_string(infile,1);
		2719	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);
		2720	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2721	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);
		2722	add_to_buffer(tmp_buffer);
		2723	break;
		2724	default:break;
		2725	}
		2726	}
		2727	reset();
		2728	break;
		2729	case HATCHFILL:
		2730	/*
		2731	@ hatchfill x0,y0,dx,dy,color
		2732	@ x0,y0 in xrange / yrange
		2733	@ distances dx,dy in pixels
		2734	*/
		2735	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		2736	for(i=0;i<5;i++){
		2737	switch(i){
		2738	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2739	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2740	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2741	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2742	case 4: stroke_color = get_color(infile,1);
		2743	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2744	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);
		2745	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2746	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);
		2747	add_to_buffer(tmp_buffer);
		2748	break;
		2749	default:break;
		2750	}
		2751	}
		2752	reset();
		2753	break;
7647	schaersvoo	2754	case DIAMONDFILL:
		2755	/*
		2756	@ diamondfill x0,y0,dx,dy,color
		2757	@ x0,y0 in xrange / yrange
		2758	@ distances dx,dy in pixels
		2759	*/
		2760	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
		2761	for(i=0;i<5;i++){
		2762	switch(i){
		2763	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2764	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2765	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2766	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2767	case 4: stroke_color = get_color(infile,1);
		2768	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2769	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);
		2770	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2771	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);
		2772	add_to_buffer(tmp_buffer);
		2773	break;
		2774	default:break;
		2775	}
		2776	}
		2777	reset();
		2778	break;
7614	schaersvoo	2779	case GRIDFILL:
		2780	/*
		2781	@ gridfill x0,y0,dx,dy,color
		2782	@ x0,y0 in xrange / yrange
		2783	@ distances dx,dy in pixels
7883	schaersvoo	2784	@ a draggable object may snap_to_grid (using keywords xysnaptogrid,xsnaprogrid, ysnaptogrid)
		2785	@ userdraw object may snap_to_grid
7614	schaersvoo	2786	*/
		2787	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		2788	for(i=0;i<5;i++){
		2789	switch(i){
		2790	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2791	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2792	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2793	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2794	case 4: stroke_color = get_color(infile,1);
		2795	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);
		2796	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2797	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);
		2798	add_to_buffer(tmp_buffer);
		2799	break;
		2800	default:break;
		2801	}
		2802	}
		2803	reset();
		2804	break;
		2805	case DOTFILL:
		2806	/*
		2807	@ dotfill x0,y0,dx,dy,color
		2808	@ x0,y0 in xrange / yrange
		2809	@ distances dx,dy in pixels
		2810	@ radius of dots is linewidth
		2811	*/
		2812	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
		2813	for(i=0;i<5;i++){
		2814	switch(i){
		2815	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2816	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2817	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2818	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2819	case 4: stroke_color = get_color(infile,1);
		2820	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
		2821	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);
		2822	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2823	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);
		2824	add_to_buffer(tmp_buffer);
		2825	break;
		2826	default:break;
		2827	}
		2828	}
		2829	reset();
		2830	break;
		2831	case IMAGEFILL:
		2832	/*
		2833	@ imagefill dx,dy,image_url
		2834	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2835	@ After pattern filling ,the fill-color should be reset !
		2836	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2837	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		2838	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		2839	@ if dx,dy is larger than the image, the whole image will be background to the next object.
		2840	*/
		2841	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		2842	for(i=0 ;i < 3 ; i++){
		2843	switch(i){
		2844	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2845	case 1:int_data[1] = (int) (get_real(infile,0));break;
		2846	case 2: URL = get_string_argument(infile,1);
		2847	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);
		2848	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2849	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);
		2850	add_to_buffer(tmp_buffer);
		2851	break;
		2852	}
		2853	}
8083	schaersvoo	2854	reset();
7614	schaersvoo	2855	break;
		2856	case FILLTOBORDER:
		2857	/*
		2858	@ filltoborder x,y,bordercolor,color
8224	bpr	2859	@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
7614	schaersvoo	2860	@ any other color will not act as border to the bucket fill
		2861	@ use this command after all boundary objects are declared.
		2862	@ 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..
		2863	*/
		2864	for(i=0 ;i < 4 ; i++){
		2865	switch(i){
		2866	case 0:double_data[0] = get_real(infile,0);break;
		2867	case 1:double_data[1] = get_real(infile,0);break;
		2868	case 2:bgcolor = get_color(infile,0);break;
		2869	case 3:fill_color = get_color(infile,1);
		2870	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2871	js_function[DRAW_FILLTOBORDER] = 1;
		2872	add_js_filltoborder(js_include_file,canvas_root_id);
		2873	}
		2874	decimals = find_number_of_digits(precision);
7895	schaersvoo	2875	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
8071	schaersvoo	2876	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2877	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8071	schaersvoo	2878	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2879	add_to_buffer(tmp_buffer);
		2880	break;
		2881	default:break;
8083	schaersvoo	2882	}
		2883	}
		2884	reset();
7614	schaersvoo	2885	break;
		2886	case FLOODFILL:
		2887	/*
		2888	@ floodfill x,y,color
		2889	@ alternative syntax: fill x,y,color
		2890	@ fill the region of point (x:y) with color 'color'
		2891	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		2892	@ use this command after all boundary objects are declared.
		2893	@ Use command 'clickfill,color' for user click driven flood fill.
		2894	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2895	@ 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..
		2896	*/
		2897	for(i=0 ;i < 4 ; i++){
		2898	switch(i){
		2899	case 0:double_data[0] = get_real(infile,0);break;
		2900	case 1:double_data[1] = get_real(infile,0);break;
		2901	case 2:fill_color = get_color(infile,1);
		2902	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2903	js_function[DRAW_FLOODFILL] = 1;
		2904	add_js_floodfill(js_include_file,canvas_root_id);
		2905	}
		2906	decimals = find_number_of_digits(precision);/floodfill(interaction,x,y,[R,G,B,A]) /
7895	schaersvoo	2907	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
		2908	string_length = snprintf(NULL,0, "setTimeout(function(){floodfill(0,%.f,%.f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2909	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7895	schaersvoo	2910	snprintf(tmp_buffer,string_length,"setTimeout(function(){floodfill(0,%.f,%.f,[%s,%d]);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2911	add_to_buffer(tmp_buffer);
		2912	break;
		2913	default:break;
8083	schaersvoo	2914	}
		2915	}
		2916	reset();
7614	schaersvoo	2917	break;
		2918	case CLICKFILLMARGE:
		2919	clickfillmarge = (int) (get_real(infile,1));
		2920	break;
		2921	/*
		2922	@ clickfillmarge int
		2923	@ default 20 (pixels)
		2924	@ 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[])
		2925	*/
		2926	case CLICKFILL:
		2927	/*
		2928	@ clickfill fillcolor
		2929	@ user left mouse click will floodfill the area with fillcolor
		2930	@ multiple areas may be coloured
		2931	@ 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)
		2932	@ the answer will be read as the (x:y) click coordinates per coloured area
		2933	@ background color of main div may be set by using command "bgcolor color"
		2934	@ may not be combined with command "userdraw"
		2935	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2936	*/
		2937	fill_color = get_color(infile,1);
		2938	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2939	js_function[DRAW_FLOODFILL] = 1;
		2940	add_js_floodfill(js_include_file,canvas_root_id);
		2941	}
8130	schaersvoo	2942	fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;userdraw_x = new Array();userdraw_y = new Array();var user_clickfill_cnt = 0;\ncanvas_div.addEventListener(\"mousedown\",clickfill,false);function clickfill(evt){var x = evt.clientX - findPosX(canvas_div) + document.body.scrollLeft + document.documentElement.scrollLeft;var y = evt.clientY - findPosY(canvas_div) + document.body.scrollTop + document.documentElement.scrollTop;if(evt.which != 1){for(var p=0; p < user_clickfill_cnt;p++){if(userdraw_x[p] + marge_xy > x && userdraw_x[p] - marge_xy < x){if(userdraw_y[p] + marge_xy > y && userdraw_y[p] - marge_xy < y){if(confirm(\"Clear ?\")){floodfill(1,userdraw_x[p],userdraw_y[p],canvas_div.style.backgroundColor \|\| [255,255,255,0]);userdraw_x.splice(p,2);userdraw_y.splice(p,2);user_clickfill_cnt--;return;};};};};};userdraw_x[user_clickfill_cnt] = x;userdraw_y[user_clickfill_cnt] = y;user_clickfill_cnt++;floodfill(1,x,y,[%s,%d]);};",clickfillmarge,fill_color,(int) (fill_opacity/0.0039215));
8257	schaersvoo	2943	add_read_canvas(canvas_root_id,1,reply_precision);
8083	schaersvoo	2944	reset();
7614	schaersvoo	2945	break;
		2946	case SETPIXEL:
		2947	/*
		2948	@ setpixel x,y,color
		2949	@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
		2950	@ pixels can not be dragged or clicked
		2951	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2952	*/
		2953	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2954	for(i=0;i<3;i++){
		2955	switch(i){
		2956	case 0: double_data[0] = get_real(infile,0); break; /* x */
		2957	case 1: double_data[1] = get_real(infile,0); break; /* y */
		2958	case 2: stroke_color = get_color(infile,1);
		2959	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2960	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2961	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2962	add_to_buffer(tmp_buffer);
		2963	break;
		2964	default:break;
		2965	}
		2966	}
		2967	reset();
		2968	break;
		2969	case PIXELSIZE:
		2970	/*
		2971	@ pixelsize int
		2972	@ in case you want to deviate from default pixelsize = 1...
		2973	*/
		2974	pixelsize = (int) get_real(infile,1);
		2975	break;
		2976	case PIXELS:
		2977	/*
		2978	@ pixels color,x1,y1,x2,y2,x3,y3...
		2979	@ Draw "points" with diameter 1 pixel
		2980	@ pixels can not be dragged or clicked
		2981	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2982	*/
		2983	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2984	stroke_color=get_color(infile,0);
		2985	i=0;
		2986	c=0;
		2987	while( ! done ){ /* get next item until EOL*/
		2988	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2989	for( c = 0 ; c < 2; c++){
		2990	if(c == 0 ){
		2991	double_data[i] = get_real(infile,0);
		2992	i++;
		2993	}
		2994	else
		2995	{
		2996	double_data[i] = get_real(infile,1);
		2997	i++;
		2998	}
		2999	}
		3000	}
		3001	decimals = find_number_of_digits(precision);
		3002	/* double_xy2js_array(double xy[],int len,int decimals) /
		3003	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3004	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3005	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3006	add_to_buffer(tmp_buffer);
8083	schaersvoo	3007	reset();
7614	schaersvoo	3008	break;
		3009	case REPLYFORMAT:
		3010	/*
		3011	@ replyformat number
8257	schaersvoo	3012	@ use number=-1 to deactivate the js-functions read_canvas() and read_dragdrop()
7614	schaersvoo	3013	@ default values should be fine !
8074	schaersvoo	3014	@ use command 'precision [0,1,10,100,1000,10000...]' before command 'replyformat' to set the desired number of decimals in the student reply / drawing
7963	schaersvoo	3015	@ the last value for 'precision int' will be used to calculate the reply coordinates, if needed (read_canvas();)
8127	schaersvoo	3016	@ choose<ul><li>1 = x1,x2,x3,x4....x_n<br />y1,y2,y3,y4....y_n<br /><br />x/y in pixels</li><li>2 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>3 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in pixels <br /> r in pixels</li><li>4 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in xrange / yrange coordinate system<br /> r in pixels</li><li>5 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in pixels<br /></li><li>6 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in pixels</li><li>8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in xrange / yrange coordinate system</li><li>9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in pixels</li><li>10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in xrange / yrange coordinate system</li><li>11 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br /> Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in xrange / yrange coordinate system</li><li>12 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br />Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in pixels</li><li>13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2<br /> x/y in xrange / yrange coordinate system</li><li>14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2<br /> x/y in pixels</li><li>15 = reply from inputfields,textareas<br /> reply1,reply2,reply3,...,reply_n</li><li>16 = mathml input fields </li><li>17 = read "userdraw text,color" only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n</li><li>18 = read_canvas() will read all interactive clocks in H1:M1:S1,H2:M2:S2...Hn:Mn:Sn</li><li>19 = read_canvas() will return the object number of marked / clicked object (clock)<br />analogue to (shape library) onclick command </li><li>21 = (x1:y1) (x2:y2) ... (x_n:y_n)<br />verbatim coordinate return</li>22 = returns an array .... reply[0]=x1 reply[1]=y1 reply[2]=x2 reply[3]=y2 ... reply[n-1]=x_n reply[n]=y_n<br /> x/y in xrange / yrange coordinate system</li><li>replyformat 23 : can only be used for drawtype 'polyline'<br />a typical click sequence in drawtype polyline isx1,y1,x2,y2,x2,y2,x3,y3,x3,y3.....,x(n-1),y(n-1),x(n-1),y(n-1),xn,yn --replyformat 23--> x1,y1,x2,y2,x3,y3,.....x(n-1),y(n-1),xn,yn multiple occurences will be filtered out.The reply will be in x-y-range (xreply \\n yreply)</li><li>replyformat 24 = read all inputfield values: even those set 'readonly'</li><li>format 25 = angle1,angle2...angle_n : will return the radius (one or many) of the user drawn circle segment in degrees </li><li>format 26 = rad1,rad2...rad_n : will return the radius (one or many) of the user drawn circle segment in radians </li><li>27 = return (only) userdraw inputfields array: x1:y1:text1,x2:y2:text2...</li></ul>
7614	schaersvoo	3017	@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
		3018	*/
		3019	reply_format = (int) get_real(infile,1);
8074	schaersvoo	3020	reply_precision = precision;
7614	schaersvoo	3021	break;
		3022	case LEGENDCOLORS:
		3023	/*
		3024	@ legendcolors color1:color2:color3:...:color_n
7956	schaersvoo	3025	@ will be used to colour a legend: use this command after the legend command ! e.g.<br />legend test1:test2:test3<br />legendcolors blue:red:orange<br />
7614	schaersvoo	3026	@ make sure the number of colours match the number of legend items
8224	bpr	3027	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
7614	schaersvoo	3028	*/
7956	schaersvoo	3029	if(legend_cnt == -1){canvas_error("use command \"legend\" before command \"legendcolors\" ! ");}
7614	schaersvoo	3030	temp = get_string(infile,1);
		3031	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7956	schaersvoo	3032	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",legend_cnt,temp);
7614	schaersvoo	3033	break;
		3034	case LEGEND:
		3035	/*
		3036	@ legend string1:string2:string3....string_n
		3037	@ will be used to create a legend for a graph
8224	bpr	3038	@ also see command 'piechart'
7956	schaersvoo	3039	@ will use the same colors per default as used in the graphs : use command 'legendcolors' to override the default
7614	schaersvoo	3040	*/
		3041	temp = get_string(infile,1);
		3042	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7956	schaersvoo	3043	legend_cnt++; /* attention :starts with -1 : it will be used in piechart etc */
		3044	fprintf(js_include_file,"var legend%d = [\"%s\"];",legend_cnt,temp);
7614	schaersvoo	3045	break;
		3046	case XLABEL:
		3047	/*
		3048	@ xlabel some_string
		3049	@ will be used to create a label for the x-axis (label is in quadrant I)
		3050	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
8224	bpr	3051	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
7614	schaersvoo	3052	*/
		3053	temp = get_string(infile,1);
7653	schaersvoo	3054	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7614	schaersvoo	3055	break;
		3056	case YLABEL:
		3057	/*
		3058	@ ylabel some_string
8224	bpr	3059	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
7614	schaersvoo	3060	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
8224	bpr	3061	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
7614	schaersvoo	3062	*/
		3063	temp = get_string(infile,1);
7653	schaersvoo	3064	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	3065	break;
		3066	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		3067	/*
7996	schaersvoo	3068	@ linegraph x1:y1;x2:y2...x_n:y_n
7614	schaersvoo	3069	@ will plot your data in a graph
		3070	@ may only to be used together with command 'grid'
		3071	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		3072	@ use command 'legend' to provide an optional legend in right-top-corner
		3073	@ also see command 'piechart'
		3074	@ multiple linegraphs may be used in a single plot
7989	schaersvoo	3075	@ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
7614	schaersvoo	3076	@ <ul><li>use command 'strokecolor' before command 'linegraph' to set the color of this graph</li><li>use command 'linewidth' before command 'linegraph' to set linewidth of this graph</li><li>use command 'dashed' before command 'linegraph' to set dashing of the graph</li><li>if dashing is set, use command 'dashtype' before command 'linegraph' to set the type of dashing of the graph</li></ul>
8224	bpr	3077	*/
7614	schaersvoo	3078	temp = get_string(infile,1);
		3079	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	3080	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	3081	linegraph_cnt++;
		3082	reset();
		3083	break;
7989	schaersvoo	3084	case BARCHART:
		3085	/*
		3086	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		3087	@ will be used to create a legend for bar graph
		3088	@ may only to be used together with command 'grid'
		3089	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		3090	@ use command 'legend' to provide an optional legend in right-top-corner
		3091	@ also see command 'piechart'
		3092	@ NOTE: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
		3093	*/
		3094	temp = get_string(infile,1);
		3095	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
		3096	fprintf(js_include_file,"var barchart_%d = [\"%s\"];",barchart_cnt,temp);
		3097	barchart_cnt++;
		3098	reset();
		3099	break;
7614	schaersvoo	3100	case CLOCK:
		3101	/*
		3102	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
7997	schaersvoo	3103	@ use command 'opacity stroke-opacity,fill-opacity' to adjust foreground (stroke) and background (fill) transparency
7614	schaersvoo	3104	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		3105	@ colors are optional: if not defined, default values will be used<br />default colours: clock 0,0,60,4,35,45,1,2,[space]<br />default colours: clock 0,0,60,4,35,45,1,2,,,,,<br />custom colours: clock 0,0,60,4,35,45,1,2,,,,yellow,red<br />custom colours: clock 0,0,60,4,35,45,1,2,white,white,white,black,yellow
7862	schaersvoo	3106	@ if you don't want a seconds hand (or minutes...), just make it invisible by using the background color of the hourglass...
7614	schaersvoo	3107	@ 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>
		3108	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		3109	@ no combinations with other reply_types allowed, for now
7783	schaersvoo	3110	@ if interactive, 6 buttons per clock will be displayed for adjusting a clock (H+ M+ S+ H- M- S-)<br /> set_clock(clock_id,type,incr) <br />first clock has clock_id=0 ; type : H=1,M=2,S=3 ; incr : increment integer
7614	schaersvoo	3111	*/
		3112	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		3113
		3114	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		3115	for(i=0;i<9;i++){
		3116	switch(i){
		3117	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		3118	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		3119	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		3120	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		3121	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		3122	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
7783	schaersvoo	3123	case 6: int_data[6] = get_real(infile,0);if(int_data[6] < 0 \|\| int_data[6] > 2){canvas_error("hourglass can be 0,1 or 2");}break;/* type hourglass */
7614	schaersvoo	3124	case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
7783	schaersvoo	3125	switch(int_data[7]){
		3126	case 0:break;
		3127	case 1:if(clock_cnt == 0){
		3128	if( reply_format == 0 ){
7614	schaersvoo	3129	reply_format = 18; /* user sets clock */
7783	schaersvoo	3130	/* string_length = snprintf(NULL,0,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
7614	schaersvoo	3131	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3132	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");
		3133	add_to_buffer(tmp_buffer);
7783	schaersvoo	3134	*/
8130	schaersvoo	3135	fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
7783	schaersvoo	3136	}
		3137	else
		3138	{
		3139	canvas_error("interactive clock may not be used together with other reply_types...");
		3140	}
		3141	}
8130	schaersvoo	3142	fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S−\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
7783	schaersvoo	3143	break;
		3144	case 2:if( reply_format == 0 ){
		3145	reply_format = 19; /* "onclick */
8130	schaersvoo	3146	fprintf(js_include_file,"\n<!-- begin onclick handler for clocks -->\nvar reply = new Array();\n\ncanvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();\nvar x = evt.clientX - canvas_rect.left;\nvar y = evt.clientY - canvas_rect.top;\nvar p = 0;\nvar name;\nvar t = true;\nwhile(t){try{name = eval('clocks'+p);\nif( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;\nname = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,\"lightblue\",name.fg_color);\n};\n}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);\nname = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);\n};\np++;\n}catch(e){t=false;\n};\n};\n};\n};\n\n<!-- end onclick handler for clocks -->\n ");
7783	schaersvoo	3147	}
		3148	else
		3149	{
		3150	if( reply_format != 19){
7614	schaersvoo	3151	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		3152	}
7783	schaersvoo	3153	}
		3154	break;
		3155	default: canvas_error("interactive must be set 0,1 or 2");break;
		3156	}
		3157	break;
8224	bpr	3158	case 8:
8130	schaersvoo	3159	if(clock_cnt == 0 ){ /* set opacity's just once .... it should be a argument to clock() , for now it's OK */
		3160	fprintf(js_include_file,"var clock_bg_opacity = %.2f;var clock_fg_opacity = %.2f;",fill_opacity,stroke_opacity);
		3161	}
7614	schaersvoo	3162	temp = get_string(infile,1);
		3163	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		3164	if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
8130	schaersvoo	3165	string_length = snprintf(NULL,0,"var clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
7614	schaersvoo	3166	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
8130	schaersvoo	3167	snprintf(tmp_buffer,string_length,"var clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
7614	schaersvoo	3168	add_to_buffer(tmp_buffer);
		3169	clock_cnt++;
		3170	break;
		3171	default:break;
		3172	}
		3173	}
		3174	break;
		3175	case PIECHART:
		3176	/*
		3177	@ piechart xc,yc,radius,'data+colorlist'
		3178	@ (xc : yc) center of circle diagram in xrange/yrange
		3179	@ radius in pixels
		3180	@ 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
		3181	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		3182	@ the number of colors must match the number of data.
		3183	@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
8224	bpr	3184	@ use command "legend string1:string2:...:string_n" to automatically create a legend <br />using the same colours as pie segments<br />unicode allowed in legend<br />expect javascript trouble if the amount of 'pie-slices', 'pie-colours' 'pie-legend-titles' do not match<br />a javascript console is your best friend...<br />use command 'fontfamily' to set the font of the legend.
7614	schaersvoo	3185	*/
8224	bpr	3186	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
7614	schaersvoo	3187	for(i=0;i<5;i++){
		3188	switch(i){
		3189	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		3190	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		3191	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		3192	case 3: temp = get_string(infile,1);
		3193	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
7956	schaersvoo	3194	string_length = snprintf(NULL,0,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
7614	schaersvoo	3195	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7956	schaersvoo	3196	snprintf(tmp_buffer,string_length,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family);
7614	schaersvoo	3197	add_to_buffer(tmp_buffer);
		3198	break;
		3199	default:break;
		3200	}
		3201	}
		3202	reset();
		3203	break;
		3204	case STATUS:
7877	schaersvoo	3205	/*
		3206	@status
		3207	@keyword
		3208	@alernative keyword: nostatus
		3209	@used to override the effects of "status=done" in wims (answer.phtml)
		3210	@affects inputfields / textarea's in canvasimage and all userdraw based commands
		3211	@e.g.: if keyword 'status' is set, the pupil will be able to modify the canvas when the 'wims status variable' is set to 'done'
		3212	*/
8224	bpr	3213
7877	schaersvoo	3214	fprintf(js_include_file,"\nwims_status=\"waiting\";\n");
7614	schaersvoo	3215	break;
7735	schaersvoo	3216	case XLOGBASE:
7729	schaersvoo	3217	/*
7735	schaersvoo	3218	@ xlogbase number
		3219	@ sets the logbase number for the x-axis
7729	schaersvoo	3220	@ default value 10
7735	schaersvoo	3221	@ use together with commands xlogscale / xylogscale
7729	schaersvoo	3222	*/
7735	schaersvoo	3223	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7729	schaersvoo	3224	break;
7735	schaersvoo	3225	case YLOGBASE:
		3226	/*
		3227	@ ylogbase number
		3228	@ sets the logbase number for the y-axis
		3229	@ default value 10
		3230	@ use together with commands ylogscale / xylogscale
		3231	*/
		3232	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		3233	break;
7614	schaersvoo	3234	case XLOGSCALE:
		3235	/*
7735	schaersvoo	3236	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		3237	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3238	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		3239	@ the linewidth is set using command 'linewidth int'
		3240	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		3241	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
8224	bpr	3242	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'xlogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
7735	schaersvoo	3243	@ note: the complete canvas will be used for the 'log paper'
		3244	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3245	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3246	@ note: when using something like 'xrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
7735	schaersvoo	3247	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3248	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	3249	*/
7735	schaersvoo	3250	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3251	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		3252	for(i=0;i<4;i++){
		3253	switch(i){
		3254	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		3255	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		3256	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	3257	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	3258	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7735	schaersvoo	3259	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3260	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7735	schaersvoo	3261	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		3262	add_to_buffer(tmp_buffer);
		3263	break;
		3264	default:break;
		3265	}
		3266	}
7614	schaersvoo	3267	break;
		3268	case YLOGSCALE:
7729	schaersvoo	3269	/*
		3270	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		3271	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3272	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		3273	@ the linewidth is set using command 'linewidth int'
		3274	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	3275	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
8224	bpr	3276	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'ylogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
7729	schaersvoo	3277	@ note: the complete canvas will be used for the 'log paper'
		3278	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3279	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3280	@ 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	3281	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3282	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	3283	*/
		3284	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3285	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		3286	for(i=0;i<4;i++){
		3287	switch(i){
		3288	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		3289	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		3290	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	3291	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	3292	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7729	schaersvoo	3293	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3294	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7735	schaersvoo	3295	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	3296	add_to_buffer(tmp_buffer);
		3297	break;
		3298	default:break;
		3299	}
		3300	}
7614	schaersvoo	3301	break;
		3302	case XYLOGSCALE:
7735	schaersvoo	3303	/*
		3304	@ xylogscale majorcolor,minorcolor
		3305	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		3306	@ the linewidth is set using command 'linewidth int'
		3307	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		3308	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
8224	bpr	3309	@ 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	3310	@ note: the complete canvas will be used for the 'log paper'
		3311	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		3312	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
8224	bpr	3313	@ 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	3314	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		3315	@ attention: keyword 'snaptogrid' may not lead to the desired result...
		3316	*/
		3317	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		3318	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		3319	for(i=0;i<2;i++){
		3320	switch(i){
		3321	case 0: stroke_color = get_color(infile,0); break;
8224	bpr	3322	case 1: fill_color = get_color(infile,1);
7779	schaersvoo	3323	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
7735	schaersvoo	3324	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	3325	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
7735	schaersvoo	3326	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		3327	add_to_buffer(tmp_buffer);
		3328	break;
		3329	default:break;
		3330	}
		3331	}
		3332	break;
7614	schaersvoo	3333	default:sync_input(infile);
		3334	break;
		3335	}
8224	bpr	3336	}
7614	schaersvoo	3337	/* we are done parsing script file */
7983	schaersvoo	3338	/* check if xrange / yrange was set explicit ... or use xmin=0 xmax=xsize ymin=0 ymax=ysize : Quadrant I */
		3339	if( found_size_command == 1 ){
		3340	fprintf(js_include_file,"var xmin = 0;var xmax = %d;var ymin = 0;var ymax = %d",xsize,ysize);
		3341	}
		3342	else
		3343	{
		3344	if( found_size_command != 3 ){
8222	schaersvoo	3345	canvas_error("Please specify both xrange and yrange ...");
7983	schaersvoo	3346	}
		3347	}
8257	schaersvoo	3348
8222	schaersvoo	3349	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable/clickable shapes / objects ! */
7614	schaersvoo	3350	add_javascript_functions(js_function,canvas_root_id);
		3351	/* add read_canvas() etc functions if needed */
8257	schaersvoo	3352	if( reply_format > 0 ){ add_read_canvas(canvas_root_id,reply_format,reply_precision);}
7797	schaersvoo	3353	if( use_pan_and_zoom == TRUE ){
		3354	/* in case of zooming ... */
7729	schaersvoo	3355	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
7797	schaersvoo	3356	precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
7729	schaersvoo	3357	var ymin_start=ymin;var ymax_start=xmax;\
		3358	var zoom_x_increment=0;var zoom_y_increment=0;\
		3359	var pan_x_increment=0;var pan_y_increment=0;\
		3360	if(use_ylogscale == 0 ){\
7956	schaersvoo	3361	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (ymax - ymin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
7729	schaersvoo	3362	}else{\
		3363	zoom_x_increment = (xmax - xmin)/20;\
		3364	pan_x_increment = (xmax - xmin)/20;\
		3365	};\
7653	schaersvoo	3366	function start_canvas%d(type){\
		3367	switch(type){\
7729	schaersvoo	3368	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		3369	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	3370	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		3371	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		3372	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		3373	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
		3374	case 6:location.reload();break;\
		3375	default:break;\
		3376	};\
		3377	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		3378	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
		3379	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
		3380	%s\
		3381	};\
7797	schaersvoo	3382	start_canvas%d(333);\
7614	schaersvoo	3383	};\n\
		3384	<!-- end wims_canvas_function -->\n\
7797	schaersvoo	3385	wims_canvas_function%d();\n",precision,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
		3386	}
		3387	else
		3388	{
		3389	/* no zoom, just add buffer */
		3390	fprintf(js_include_file,"\n<!-- add buffer -->\n\
		3391	%s\
		3392	};\n\
		3393	<!-- end wims_canvas_function -->\n\
		3394	wims_canvas_function%d();\n",buffer,canvas_root_id);
		3395	}
7614	schaersvoo	3396	/* done writing the javascript include file */
		3397	fclose(js_include_file);
		3398
		3399	}
		3400
		3401	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
		3402	if(use_tooltip == TRUE){
		3403	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		3404	}
		3405	exit(EXIT_SUCCESS);
		3406	}
		3407	/* end main() */
		3408
		3409	/******************************************************************************
		3410	**
		3411	** sync_input
		3412	**
		3413	** synchronises input line - reads to end of line, leaving file pointer
		3414	** at first character of next line.
		3415	**
		3416	** Used by:
		3417	** main program - error handling.
		3418	**
		3419	******************************************************************************/
		3420	void sync_input(FILE *infile)
		3421	{
		3422	int c = 0;
		3423
7658	schaersvoo	3424	if( c == '\n' \|\| c == ';' ) return;
		3425	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	3426	if( c == EOF ) finished = 1;
7658	schaersvoo	3427	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	3428	return;
		3429	}
		3430
		3431	/******************************************************************************/
		3432
		3433	char str_replace(const char str, const char old, const char new){
		3434	/* http://creativeandcritical.net/str-replace-c/ */
		3435	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		3436	char ret, r;
		3437	const char p, q;
		3438	size_t oldlen = strlen(old);
		3439	size_t count = 0;
		3440	size_t retlen = 0;
		3441	size_t newlen = strlen(new);
		3442	if (oldlen != newlen){
		3443	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		3444	count++;
		3445	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		3446	}
8224	bpr	3447	}
7614	schaersvoo	3448	else
		3449	{
		3450	retlen = strlen(str);
		3451	}
8224	bpr	3452
7614	schaersvoo	3453	if ((ret = malloc(retlen + 1)) == NULL){
		3454	ret = NULL;
		3455	canvas_error("string argument is NULL");
		3456	}
		3457	else
		3458	{
		3459	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		3460	size_t l = q - p;
		3461	memcpy(r, p, l);
		3462	r += l;
		3463	memcpy(r, new, newlen);
		3464	r += newlen;
		3465	}
		3466	strcpy(r, p);
		3467	}
		3468	return ret;
		3469	}
		3470
		3471	/******************************************************************************/
7848	bpr	3472
7614	schaersvoo	3473	char get_color(FILE infile , int last){
		3474	int c,i = 0,is_hex = 0;
		3475	char temp[MAX_COLOR_STRING], *string;
7748	schaersvoo	3476	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
7614	schaersvoo	3477	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		3478	if( c == '#' ){
		3479	is_hex = 1;
		3480	}
		3481	if( c != ' '){
		3482	temp[i]=tolower(c);
		3483	i++;
		3484	}
		3485	}
8224	bpr	3486	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3487	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	3488	if( c == EOF ){finished = 1;}
		3489	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		3490	temp[i]='\0';
		3491	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		3492	if( is_hex == 1 ){
		3493	char red[3], green[3], blue[3];
		3494	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		3495	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		3496	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		3497	int r = (int) strtol(red, NULL, 16);
		3498	int g = (int) strtol(green, NULL, 16);
		3499	int b = (int) strtol(blue, NULL, 16);
		3500	string = (char *)my_newmem(12);
		3501	snprintf(string,11,"%d,%d,%d",r,g,b);
		3502	return string;
		3503	}
		3504	else
		3505	{
		3506	string = (char *)my_newmem(sizeof(temp));
		3507	snprintf(string,sizeof(temp),"%s",temp);
		3508	for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
		3509	if( strcmp( colors[i].name , string ) == 0 ){
		3510	return colors[i].rgb;
		3511	}
		3512	}
		3513	}
		3514	/* not found...return error */
		3515	free(string);string = NULL;
		3516	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
		3517	return NULL;
		3518	}
		3519
		3520	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		3521	int c,i=0;
		3522	char temp[MAX_BUFFER], *string;
7748	schaersvoo	3523	while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
7614	schaersvoo	3524	temp[i]=c;
		3525	i++;
		3526	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		3527	}
8224	bpr	3528	if( ( c == '\n' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3529	if( c == '\n') { done = TRUE; line_number++; }
7614	schaersvoo	3530	if( c == EOF ) {
		3531	finished = 1;
		3532	if( last != 1 ){ canvas_error("expected more arguments");}
		3533	}
		3534	temp[i]='\0';
		3535	if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
		3536	string=(char *)my_newmem(strlen(temp));
		3537	snprintf(string,sizeof(temp),"%s",temp);
		3538	return string;
		3539	}
		3540
		3541	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		3542	int c,i=0;
		3543	char temp[MAX_BUFFER], *string;
7748	schaersvoo	3544	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
7614	schaersvoo	3545	temp[i]=c;
		3546	i++;
		3547	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		3548	}
8224	bpr	3549	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	3550	if( c == '\n') { line_number++; }
7614	schaersvoo	3551	if( c == EOF ) {finished = 1;}
		3552	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		3553	temp[i]='\0';
		3554	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
		3555	string=(char *)my_newmem(sizeof(temp));
		3556	snprintf(string,sizeof(temp),"%s",temp);
		3557	done = TRUE;
		3558	return string;
		3559	}
		3560
		3561	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		3562	int c,i=0,found_calc = 0;
		3563	double y;
		3564	char tmp[MAX_INT];
7658	schaersvoo	3565	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	3566	if( c != ' ' ){
8224	bpr	3567	/*
		3568	libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
7614	schaersvoo	3569	We will check after assert() if it's a NULL pointer...and exit program via :
		3570	canvas_error("I'm having trouble parsing your \"expression\" ");
		3571	*/
8224	bpr	3572	if( i == 0 && c == '+' ){
7614	schaersvoo	3573	continue;
8224	bpr	3574	}
7614	schaersvoo	3575	else
		3576	{
		3577	if(canvas_iscalculation(c) != 0){
		3578	found_calc = 1;
		3579	c = tolower(c);
		3580	}
		3581	tmp[i] = c;
		3582	i++;
		3583	}
		3584	}
		3585	if( i > MAX_INT - 1){canvas_error("number too large");}
		3586	}
8224	bpr	3587	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7658	schaersvoo	3588	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	3589	if( c == EOF ){done = TRUE ; finished = 1;}
		3590	tmp[i]='\0';
		3591	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
		3592	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
7848	bpr	3593	void *f = eval_create(tmp);
7614	schaersvoo	3594	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
7848	bpr	3595	y = eval_x(f, 1);
7614	schaersvoo	3596	/* if function is bogus; y = 1 : so no core dumps */
7848	bpr	3597	eval_destroy(f);
7614	schaersvoo	3598	}
		3599	else
		3600	{
		3601	y = atof(tmp);
		3602	}
		3603	return y;
		3604	}
		3605	void canvas_error(char *msg){
7748	schaersvoo	3606	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
7614	schaersvoo	3607	finished = 1;
		3608	exit(EXIT_SUCCESS);
		3609	}
		3610
		3611
		3612	/* convert x/y coordinates to pixel */
		3613	int x2px(double x){
		3614	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		3615	}
		3616
		3617	int y2px(double y){
		3618	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		3619	}
		3620
		3621	double px2x(int x){
		3622	return (x*(xmax - xmin)/xsize + xmin);
		3623	}
		3624	double px2y(int y){
		3625	return (y*(ymax - ymin)/ysize + ymin);
		3626	}
		3627
		3628	void add_to_buffer(char *tmp){
		3629	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		3630	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		3631	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		3632	if( space_left > strlen(tmp)){
		3633	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		3634	}
		3635	else
		3636	{
		3637	canvas_error("buffer is too big\n");
		3638	}
		3639	tmp = NULL;free(tmp);
		3640	return;
		3641	}
		3642
		3643	void reset(){
		3644	if(use_filled == TRUE){use_filled = FALSE;}
		3645	if(use_dashed == TRUE){use_dashed = FALSE;}
		3646	if(use_rotate == TRUE){use_rotate = FALSE;}
8101	schaersvoo	3647	onclick = 0;
7614	schaersvoo	3648	}
		3649
		3650
		3651
		3652	/* What reply format in read_canvas();
		3653
		3654	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		3655	1 = x1,x2,x3,x4....x_n
		3656	y1,y2,y3,y4....y_n
		3657
		3658	x/y in pixels
		3659
		3660	2 = x1,x2,x3,x4....x_n
		3661	y1,y2,y3,y4....y_n
		3662	x/y in xrange / yrange coordinate system
		3663
		3664	3 = x1,x2,x3,x4....x_n
		3665	y1,y2,y3,y4....y_n
		3666	r1,r2,r3,r4....r_n
		3667
8224	bpr	3668	x/y in pixels
7614	schaersvoo	3669	r in pixels
		3670
		3671	4 = x1,x2,x3,x4....x_n
		3672	y1,y2,y3,y4....y_n
		3673	r1,r2,r3,r4....r_n
		3674
		3675	x/y in xrange / yrange coordinate system
		3676	r in pixels
		3677
		3678	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3679	Ay1,Ay2,Ay3,Ay4....Ay_n
		3680	Bx1,Bx2,Bx3,Bx4....Bx_n
		3681	By1,By2,By3,By4....By_n
		3682	Cx1,Cx2,Cx3,Cx4....Cx_n
		3683	Cy1,Cy2,Cy3,Cy4....Cy_n
		3684	....
		3685	Zx1,Zx2,Zx3,Zx4....Zx_n
		3686	Zy1,Zy2,Zy3,Zy4....Zy_n
8224	bpr	3687
7614	schaersvoo	3688	x/y in pixels
		3689
		3690	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3691	Ay1,Ay2,Ay3,Ay4....Ay_n
		3692	Bx1,Bx2,Bx3,Bx4....Bx_n
		3693	By1,By2,By3,By4....By_n
		3694	Cx1,Cx2,Cx3,Cx4....Cx_n
		3695	Cy1,Cy2,Cy3,Cy4....Cy_n
		3696	....
		3697	Zx1,Zx2,Zx3,Zx4....Zx_n
		3698	Zy1,Zy2,Zy3,Zy4....Zy_n
		3699
		3700	x/y in xrange / yrange coordinate system
8224	bpr	3701
7614	schaersvoo	3702	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	3703
7614	schaersvoo	3704	x/y in pixels
		3705
		3706	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	3707
7614	schaersvoo	3708	x/y in xrange / yrange coordinate system
		3709
8224	bpr	3710	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	3711
		3712	x/y in pixels
		3713
8224	bpr	3714	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	3715
		3716	x/y in xrange / yrange coordinate system
		3717
		3718	11 = Ax1,Ay1,Ax2,Ay2
		3719	Bx1,By1,Bx2,By2
		3720	Cx1,Cy1,Cx2,Cy2
		3721	Dx1,Dy1,Dx2,Dy2
		3722	......
		3723	Zx1,Zy1,Zx2,Zy2
8224	bpr	3724
7614	schaersvoo	3725	x/y in xrange / yrange coordinate system
		3726
		3727	12 = Ax1,Ay1,Ax2,Ay2
		3728	Bx1,By1,Bx2,By2
		3729	Cx1,Cy1,Cx2,Cy2
		3730	Dx1,Dy1,Dx2,Dy2
		3731	......
		3732	Zx1,Zy1,Zx2,Zy2
8224	bpr	3733
7614	schaersvoo	3734	x/y in pixels
		3735
		3736	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		3737
		3738	x/y in xrange / yrange coordinate system
		3739	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		3740	x/y in pixels
		3741	15 = reply from inputfields,textareas
		3742	reply1,reply2,reply3,...,reply_n
7984	schaersvoo	3743	only fields set write (a.g. will not read 'readonly' inputfield values'
7614	schaersvoo	3744
		3745	16 = read mathml inputfields only
		3746
		3747	17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
		3748	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		3749
		3750	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		3751	19 = return clicked object number (analogue to shape-library onclick)
		3752	20 = return x/y-data in x-range/y-range of all 'draggable' images
		3753	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		3754	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		3755	x/y in xrange / yrange coordinate system
8224	bpr	3756	23 = answertype for a polyline : remove multiple occurences due to reclick on a point to create next polyline segment
7984	schaersvoo	3757	24 = read all inputfield values: even those set 'readonly'
8224	bpr	3758	25 = return all userdrawn arcs in degrees:
		3759	26 = return all userdrawn arcs in radians:
8127	schaersvoo	3760	27 = return (only) userdraw inputfields array: x1:y1:text1,x2:y2:text2...
7614	schaersvoo	3761	*/
		3762
		3763
8257	schaersvoo	3764	void add_read_canvas(int canvas_root_id,int type_reply,int reply_precision){
7614	schaersvoo	3765	/* just 1 reply type allowed */
8074	schaersvoo	3766	fprintf(js_include_file,"\
		3767	\n<!-- begin set_reply_precision() -->\n\
		3768	function set_reply_precision(){\
		3769	var len = userdraw_x.length;\
		3770	var prec = %d;\
		3771	for(var p = 0 ; p < len ; p++ ){\
		3772	userdraw_x[p] = (Math.round(prec*userdraw_x[p]))/prec;\
		3773	userdraw_y[p] = (Math.round(prec*userdraw_y[p]))/prec;\
		3774	};\
		3775	len = userdraw_radius.length;\
		3776	if( len > 0 ){\
		3777	for(var p = 0 ; p < len ; p++ ){\
		3778	userdraw_radius[p] = (Math.round(prec*userdraw_radius[p]))/prec;\
		3779	};\
		3780	};\
		3781	};",reply_precision);
7963	schaersvoo	3782
7614	schaersvoo	3783	switch(type_reply){
8224	bpr	3784	/*
7614	schaersvoo	3785	answers may have:
		3786	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		3787	*/
		3788	case 1: fprintf(js_include_file,"\
8257	schaersvoo	3789	\n<!-- begin function 1 read_canvas%d() -->\n\
		3790	read_canvas%d = function(){\
7614	schaersvoo	3791	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3792	set_reply_precision();\
7614	schaersvoo	3793	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3794	var p = 0;var input_reply = new Array();\
		3795	if( document.getElementById(\"canvas_input0\")){\
		3796	var t = 0;\
		3797	while(document.getElementById(\"canvas_input\"+t)){\
		3798	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3799	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3800	p++;\
		3801	};\
		3802	t++;\
		3803	};\
		3804	};\
		3805	if( typeof userdraw_text != 'undefined' ){\
		3806	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		3807	}\
		3808	else\
		3809	{\
		3810	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		3811	}\
		3812	}\
		3813	else\
		3814	{\
		3815	if( typeof userdraw_text != 'undefined' ){\
		3816	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		3817	}\
		3818	else\
		3819	{\
		3820	return userdraw_x+\"\\n\"+userdraw_y;\
		3821	}\
		3822	};\
8108	schaersvoo	3823	};\n\
8257	schaersvoo	3824	<!-- end function 1 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	3825	break;
		3826	case 2: fprintf(js_include_file,"\
8257	schaersvoo	3827	\n<!-- begin function 2 read_canvas%d() -->\n\
		3828	read_canvas%d = function(){\
7614	schaersvoo	3829	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3830	set_reply_precision();\
7614	schaersvoo	3831	var reply_x = new Array();var reply_y = new Array();var p = 0;\
8074	schaersvoo	3832	var prec = %d;\
7614	schaersvoo	3833	while(userdraw_x[p]){\
8074	schaersvoo	3834	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		3835	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	3836	p++;\
		3837	};\
		3838	if(p == 0){alert(\"nothing drawn...\");return;};\
		3839	if( document.getElementById(\"canvas_input0\")){\
		3840	var p = 0;var input_reply = new Array();\
		3841	if( document.getElementById(\"canvas_input0\")){\
		3842	var t = 0;\
		3843	while(document.getElementById(\"canvas_input\"+t)){\
		3844	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3845	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3846	p++;\
		3847	};\
		3848	t++;\
		3849	};\
		3850	};\
		3851	if( typeof userdraw_text != 'undefined' ){\
		3852	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3853	}\
		3854	else\
		3855	{\
		3856	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		3857	}\
		3858	}\
		3859	else\
		3860	{\
		3861	if( typeof userdraw_text != 'undefined' ){\
		3862	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		3863	}\
		3864	else\
		3865	{\
		3866	return reply_x+\"\\n\"+reply_y;\
		3867	};\
		3868	};\
8108	schaersvoo	3869	};\n\
8257	schaersvoo	3870	<!-- end function 2 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	3871	break;
		3872	case 3: fprintf(js_include_file,"\
8257	schaersvoo	3873	\n<!-- begin function 3 read_canvas%d() -->\n\
		3874	read_canvas%d = function(){\
7614	schaersvoo	3875	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	3876	set_reply_precision();\
7614	schaersvoo	3877	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3878	var p = 0;var input_reply = new Array();\
		3879	if( document.getElementById(\"canvas_input0\")){\
		3880	var t = 0;\
		3881	while(document.getElementById(\"canvas_input\"+t)){\
		3882	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3883	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3884	p++;\
		3885	};\
		3886	t++;\
		3887	};\
		3888	};\
		3889	if( typeof userdraw_text != 'undefined' ){\
		3890	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3891	}\
		3892	else\
		3893	{\
		3894	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3895	}\
		3896	}\
		3897	else\
		3898	{\
		3899	if( typeof userdraw_text != 'undefined' ){\
		3900	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		3901	}\
		3902	else\
		3903	{\
		3904	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		3905	}\
		3906	}\
8108	schaersvoo	3907	};\n\
8257	schaersvoo	3908	<!-- end function 3 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	3909	break;
		3910	case 4: fprintf(js_include_file,"\
8257	schaersvoo	3911	\n<!-- begin function 4 read_canvas%d() -->\n\
		3912	read_canvas%d = function(){\
8074	schaersvoo	3913	var prec = %d;\
7614	schaersvoo	3914	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3915	while(userdraw_x[p]){\
8074	schaersvoo	3916	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		3917	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;;\
7614	schaersvoo	3918	p++;\
		3919	};\
		3920	if(p == 0){alert(\"nothing drawn...\");return;};\
		3921	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3922	var p = 0;var input_reply = new Array();\
		3923	if( document.getElementById(\"canvas_input0\")){\
		3924	var t = 0;\
		3925	while(document.getElementById(\"canvas_input\"+t)){\
		3926	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3927	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3928	p++;\
		3929	};\
		3930	t++;\
		3931	};\
		3932	};\
		3933	if( typeof userdraw_text != 'undefined' ){\
		3934	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3935	}\
		3936	else\
		3937	{\
		3938	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3939	}\
		3940	}\
		3941	else\
		3942	{\
		3943	if( typeof userdraw_text != 'undefined' ){\
		3944	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		3945	}\
		3946	else\
		3947	{\
		3948	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		3949	}\
		3950	};\
8108	schaersvoo	3951	};\n\
8257	schaersvoo	3952	<!-- end function 4 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	3953	break;
8224	bpr	3954	/*
		3955	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3956	used for userdraw multiple paths
7614	schaersvoo	3957	*/
		3958	case 5: fprintf(js_include_file,"\
8257	schaersvoo	3959	\n<!-- begin function 5 read_canvas%d() -->\n\
		3960	read_canvas%d = function(){\
8074	schaersvoo	3961	set_reply_precision();\
7614	schaersvoo	3962	var p = 0;\
		3963	var reply = \"\";\
		3964	for(p = 0; p < userdraw_x.length;p++){\
		3965	if(userdraw_x[p] != null ){\
		3966	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		3967	};\
		3968	};\
		3969	if(p == 0){alert(\"nothing drawn...\");return;};\
		3970	userdraw_x = [];userdraw_y = [];\
		3971	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3972	var p = 0;var input_reply = new Array();\
		3973	if( document.getElementById(\"canvas_input0\")){\
		3974	var t = 0;\
		3975	while(document.getElementById(\"canvas_input\"+t)){\
		3976	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3977	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3978	p++;\
		3979	};\
		3980	t++;\
		3981	};\
		3982	};\
		3983	if( typeof userdraw_text != 'undefined' ){\
		3984	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3985	}\
		3986	else\
		3987	{\
		3988	return reply +\"\\n\"+input_reply;\
		3989	}\
		3990	}\
		3991	else\
		3992	{\
		3993	if( typeof userdraw_text != 'undefined' ){\
		3994	return reply+\"\\n\"+userdraw_text;\
		3995	}\
		3996	else\
		3997	{\
		3998	return reply;\
		3999	}\
		4000	};\
8108	schaersvoo	4001	};\n\
8257	schaersvoo	4002	<!-- end function 5 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4003	break;
8224	bpr	4004	/*
		4005	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		4006	used for userdraw multiple paths
7614	schaersvoo	4007	*/
		4008	case 6: fprintf(js_include_file,"\
8257	schaersvoo	4009	\n<!-- begin function 6 read_canvas%d() -->\n\
		4010	read_canvas%d = function(){\
7614	schaersvoo	4011	var p = 0;\
		4012	var reply = \"\";\
		4013	var tmp_x = new Array();\
		4014	var tmp_y = new Array();\
8074	schaersvoo	4015	var prec = %d;\
7614	schaersvoo	4016	for(p = 0 ; p < userdraw_x.length; p++){\
		4017	tmp_x = userdraw_x[p];\
		4018	tmp_y = userdraw_y[p];\
		4019	if(tmp_x != null){\
		4020	for(var i = 0 ; i < tmp_x.length ; i++){\
8074	schaersvoo	4021	tmp_x[i] = (Math.round(prec*(px2x(tmp_x[i]))))/prec;\
		4022	tmp_y[i] = (Math.round(prec*(px2y(tmp_y[i]))))/prec;\
7614	schaersvoo	4023	};\
		4024	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		4025	};\
		4026	};\
		4027	if(p == 0){alert(\"nothing drawn...\");return;};\
		4028	userdraw_x = [];userdraw_y = [];\
		4029	if( document.getElementById(\"canvas_input0\") ){\
		4030	var p = 0;var input_reply = new Array();\
		4031	if( document.getElementById(\"canvas_input0\")){\
		4032	var t = 0;\
		4033	while(document.getElementById(\"canvas_input\"+t)){\
		4034	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4035	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4036	p++;\
		4037	};\
		4038	t++;\
		4039	};\
		4040	};\
		4041	if( typeof userdraw_text != 'undefined' ){\
		4042	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4043	}\
		4044	else\
		4045	{\
		4046	return reply +\"\\n\"+input_reply;\
		4047	}\
		4048	}\
		4049	else\
		4050	{\
		4051	if( typeof userdraw_text != 'undefined' ){\
		4052	return reply +\"\\n\"+userdraw_text;\
		4053	}\
		4054	else\
		4055	{\
		4056	return reply;\
		4057	}\
		4058	};\
8108	schaersvoo	4059	};\n\
8257	schaersvoo	4060	<!-- end function 6 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4061	break;
		4062	case 7: fprintf(js_include_file,"\
8257	schaersvoo	4063	\n<!-- begin function 7 read_canvas%d() -->\n\
		4064	read_canvas%d = function(){\
8074	schaersvoo	4065	set_reply_precision();\
7614	schaersvoo	4066	var reply = new Array();\
		4067	var p = 0;\
		4068	while(userdraw_x[p]){\
		4069	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		4070	p++;\
		4071	};\
		4072	if(p == 0){alert(\"nothing drawn...\");return;};\
		4073	if( document.getElementById(\"canvas_input0\") ){\
		4074	var p = 0;var input_reply = new Array();\
		4075	if( document.getElementById(\"canvas_input0\")){\
		4076	var t = 0;\
		4077	while(document.getElementById(\"canvas_input\"+t)){\
		4078	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4079	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4080	p++;\
		4081	};\
		4082	t++;\
		4083	};\
		4084	};\
		4085	if( typeof userdraw_text != 'undefined' ){\
		4086	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4087	}\
		4088	else\
		4089	{\
		4090	return reply+\"\\n\"+input_reply;\
		4091	}\
7862	schaersvoo	4092	}\
7614	schaersvoo	4093	else\
		4094	{\
		4095	if( typeof userdraw_text != 'undefined' ){\
		4096	return reply+\"\\n\"+userdraw_text;\
		4097	}\
		4098	else\
		4099	{\
		4100	return reply;\
		4101	}\
		4102	};\
8108	schaersvoo	4103	};\n\
8257	schaersvoo	4104	<!-- end function 7 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4105	break;
		4106	case 8: fprintf(js_include_file,"\
8257	schaersvoo	4107	\n<!-- begin function 8 read_canvas%d() -->\n\
		4108	read_canvas%d = function(){\
7614	schaersvoo	4109	var reply = new Array();\
		4110	var p = 0;\
8074	schaersvoo	4111	var prec = %d;\
7614	schaersvoo	4112	while(userdraw_x[p]){\
8074	schaersvoo	4113	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	4114	p++;\
		4115	};\
		4116	if(p == 0){alert(\"nothing drawn...\");return;};\
		4117	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		4118	var p = 0;var input_reply = new Array();\
		4119	if( document.getElementById(\"canvas_input0\")){\
		4120	var t = 0;\
		4121	while(document.getElementById(\"canvas_input\"+t)){\
		4122	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4123	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4124	p++;\
		4125	};\
		4126	t++;\
		4127	};\
		4128	};\
		4129	if( typeof userdraw_text != 'undefined' ){\
		4130	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4131	}\
		4132	else\
		4133	{\
		4134	return reply +\"\\n\"+input_reply;\
		4135	}\
		4136	}\
		4137	else\
		4138	{\
		4139	if( typeof userdraw_text != 'undefined' ){\
		4140	return reply +\"\\n\"+userdraw_text;\
		4141	}\
		4142	else\
		4143	{\
		4144	return reply;\
		4145	}\
		4146	};\
8108	schaersvoo	4147	};\n\
8257	schaersvoo	4148	<!-- end function 8 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4149	break;
		4150	case 9: fprintf(js_include_file,"\
8257	schaersvoo	4151	\n<!-- begin function 9 read_canvas%d() -->\n\
		4152	read_canvas%d = function(){\
8074	schaersvoo	4153	set_reply_precision();\
7614	schaersvoo	4154	var reply = new Array();\
		4155	var p = 0;\
		4156	while(userdraw_x[p]){\
		4157	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		4158	p++;\
		4159	};\
		4160	if(p == 0){alert(\"nothing drawn...\");return;};\
		4161	if( document.getElementById(\"canvas_input0\") ){\
		4162	var p = 0;var input_reply = new Array();\
		4163	if( document.getElementById(\"canvas_input0\")){\
		4164	var t = 0;\
		4165	while(document.getElementById(\"canvas_input\"+t)){\
		4166	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4167	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4168	p++;\
		4169	};\
		4170	t++;\
		4171	};\
		4172	};\
		4173	if( typeof userdraw_text != 'undefined' ){\
		4174	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4175	}\
		4176	else\
		4177	{\
		4178	return reply +\"\\n\"+input_reply;\
		4179	}\
		4180	}\
		4181	else\
		4182	{\
		4183	if( typeof userdraw_text != 'undefined' ){\
		4184	return reply +\"\\n\"+userdraw_text;\
		4185	}\
		4186	else\
		4187	{\
		4188	return reply;\
		4189	}\
		4190	};\
8108	schaersvoo	4191	};\n\
8257	schaersvoo	4192	<!-- end function 9 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4193	break;
		4194	case 10: fprintf(js_include_file,"\
8257	schaersvoo	4195	\n<!-- begin function 10 read_canvas%d() -->\n\
		4196	read_canvas%d = function(){\
7614	schaersvoo	4197	var reply = new Array();\
		4198	var p = 0;\
8074	schaersvoo	4199	var prec = %d;\
7614	schaersvoo	4200	while(userdraw_x[p]){\
8074	schaersvoo	4201	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec*userdraw_radius[p]))/prec;\
7614	schaersvoo	4202	p++;\
		4203	};\
		4204	if(p == 0){alert(\"nothing drawn...\");return;};\
		4205	if( document.getElementById(\"canvas_input0\") ){\
		4206	var p = 0;var input_reply = new Array();\
		4207	if( document.getElementById(\"canvas_input0\")){\
		4208	var t = 0;\
		4209	while(document.getElementById(\"canvas_input\"+t)){\
		4210	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4211	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4212	p++;\
		4213	};\
		4214	t++;\
		4215	};\
		4216	};\
		4217	if( typeof userdraw_text != 'undefined' ){\
		4218	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4219	}\
		4220	else\
		4221	{\
		4222	return reply +\"\\n\"+input_reply;\
		4223	}\
		4224	}\
		4225	else\
		4226	{\
		4227	if( typeof userdraw_text != 'undefined' ){\
		4228	return reply +\"\\n\"+userdraw_text;\
		4229	}\
		4230	else\
		4231	{\
		4232	return reply;\
		4233	}\
		4234	};\
8108	schaersvoo	4235	};\n\
8257	schaersvoo	4236	<!-- end function 10 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4237	break;
		4238	case 11: fprintf(js_include_file,"\
8257	schaersvoo	4239	\n<!-- begin function 11 read_canvas%d() -->\n\
		4240	read_canvas%d = function(){\
7614	schaersvoo	4241	var reply = \"\";\
		4242	var p = 0;\
8074	schaersvoo	4243	var prec = %d;\
7614	schaersvoo	4244	while(userdraw_x[p]){\
8074	schaersvoo	4245	reply = reply + (Math.round(prec(px2x(userdraw_x[p]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\",\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec +\"\\n\" ;\
7614	schaersvoo	4246	p = p+2;\
		4247	};\
		4248	if(p == 0){alert(\"nothing drawn...\");return;};\
		4249	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		4250	var p = 0;var input_reply = new Array();\
		4251	if( document.getElementById(\"canvas_input0\")){\
		4252	var t = 0;\
		4253	while(document.getElementById(\"canvas_input\"+t)){\
		4254	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4255	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4256	p++;\
		4257	};\
		4258	t++;\
		4259	};\
		4260	};\
		4261	if( typeof userdraw_text != 'undefined' ){\
		4262	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4263	}\
		4264	else\
		4265	{\
		4266	return reply +\"\\n\"+input_reply;\
		4267	}\
		4268	}\
		4269	else\
		4270	{\
		4271	if( typeof userdraw_text != 'undefined' ){\
		4272	return reply +\"\\n\"+userdraw_text;\
		4273	}\
		4274	else\
		4275	{\
		4276	return reply;\
		4277	}\
		4278	};\
8108	schaersvoo	4279	};\n\
8257	schaersvoo	4280	<!-- end function 11 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4281	break;
		4282	case 12: fprintf(js_include_file,"\
8257	schaersvoo	4283	\n<!-- begin function 12 read_canvas%d() -->\n\
		4284	read_canvas%d = function(){\
8074	schaersvoo	4285	set_reply_precision();\
7614	schaersvoo	4286	var reply = \"\";\
		4287	var p = 0;\
		4288	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		4289	if(userdraw_x[p] != null){\
		4290	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		4291	};\
		4292	};\
		4293	if(p == 0){alert(\"nothing drawn...\");return;};\
		4294	if( document.getElementById(\"canvas_input0\") ){\
		4295	var p = 0;var input_reply = new Array();\
		4296	if( document.getElementById(\"canvas_input0\")){\
		4297	var t = 0;\
		4298	while(document.getElementById(\"canvas_input\"+t)){\
		4299	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4300	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4301	p++;\
		4302	};\
		4303	t++;\
		4304	};\
		4305	};\
		4306	if( typeof userdraw_text != 'undefined' ){\
		4307	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4308	}\
		4309	else\
		4310	{\
		4311	return reply +\"\\n\"+input_reply;\
		4312	}\
		4313	}\
		4314	else\
		4315	{\
		4316	if( typeof userdraw_text != 'undefined' ){\
		4317	return reply +\"\\n\"+userdraw_text\
		4318	}\
		4319	else\
		4320	{\
		4321	return reply;\
		4322	}\
		4323	};\
8108	schaersvoo	4324	};\n\
8257	schaersvoo	4325	<!-- end function 12 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4326	break;
		4327	case 13: fprintf(js_include_file,"\
8257	schaersvoo	4328	\n<!-- begin function 13 read_canvas%d() -->\n\
		4329	read_canvas%d = function(){\
7614	schaersvoo	4330	var reply = new Array();\
		4331	var p = 0;var i = 0;\
8074	schaersvoo	4332	var prec = %d;\
7614	schaersvoo	4333	while(userdraw_x[p]){\
8074	schaersvoo	4334	reply[i] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec;\
7614	schaersvoo	4335	p = p+2;i++;\
		4336	};\
		4337	if(p == 0){alert(\"nothing drawn...\");return;};\
		4338	if( document.getElementById(\"canvas_input0\") ){\
		4339	var p = 0;var input_reply = new Array();\
		4340	if( document.getElementById(\"canvas_input0\")){\
		4341	var t = 0;\
		4342	while(document.getElementById(\"canvas_input\"+t)){\
		4343	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4344	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4345	p++;\
		4346	};\
		4347	t++;\
		4348	};\
		4349	};\
		4350	if( typeof userdraw_text != 'undefined' ){\
		4351	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4352	}\
		4353	else\
		4354	{\
		4355	return reply +\"\\n\"+input_reply;\
		4356	}\
		4357	}\
		4358	else\
		4359	{\
		4360	if( typeof userdraw_text != 'undefined' ){\
		4361	return reply +\"\\n\"+userdraw_text\
		4362	}\
		4363	else\
		4364	{\
		4365	return reply;\
		4366	}\
		4367	};\
8108	schaersvoo	4368	};\n\
8257	schaersvoo	4369	<!-- end function 13 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4370	break;
		4371	case 14: fprintf(js_include_file,"\
8257	schaersvoo	4372	\n<!-- begin function 14 read_canvas%d() -->\n\
		4373	read_canvas%d = function(){\
8074	schaersvoo	4374	set_reply_precision();\
7614	schaersvoo	4375	var reply = new Array();\
		4376	var p = 0;var i = 0;\
		4377	while(userdraw_x[p]){\
		4378	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		4379	p = p+2;i++;\
		4380	};\
		4381	if(p == 0){alert(\"nothing drawn...\");return;};\
		4382	if( document.getElementById(\"canvas_input0\") ){\
		4383	var p = 0;var input_reply = new Array();\
		4384	if( document.getElementById(\"canvas_input0\")){\
		4385	var t = 0;\
		4386	while(document.getElementById(\"canvas_input\"+t)){\
		4387	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4388	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4389	p++;\
		4390	};\
		4391	t++;\
		4392	};\
		4393	};\
		4394	if( typeof userdraw_text != 'undefined' ){\
		4395	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4396	}\
		4397	else\
		4398	{\
		4399	return reply +\"\\n\"+input_reply;\
		4400	}\
		4401	}\
		4402	else\
		4403	{\
		4404	if( typeof userdraw_text != 'undefined' ){\
		4405	return reply +\"\\n\"+userdraw_text;\
		4406	}\
		4407	else\
		4408	{\
		4409	return reply;\
		4410	}\
		4411	};\
8108	schaersvoo	4412	};\n\
8257	schaersvoo	4413	<!-- end function 14 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4414	break;
		4415	case 15: fprintf(js_include_file,"\
8257	schaersvoo	4416	\n<!-- begin function 15 read_canvas%d() -->\n\
		4417	read_canvas%d = function(){\
7614	schaersvoo	4418	var input_reply = new Array();\
		4419	var p = 0;\
		4420	if( document.getElementById(\"canvas_input0\")){\
		4421	var t = 0;\
		4422	while(document.getElementById(\"canvas_input\"+t)){\
		4423	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4424	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4425	p++;\
		4426	};\
		4427	t++;\
		4428	};\
		4429	};\
		4430	if( typeof userdraw_text != 'undefined' ){\
		4431	return input_reply +\"\\n\"+userdraw_text;\
		4432	}\
		4433	else\
		4434	{\
		4435	return input_reply;\
		4436	};\
8108	schaersvoo	4437	};\n\
8257	schaersvoo	4438	<!-- end function 15 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4439	break;
		4440	case 16: fprintf(js_include_file,"\
7653	schaersvoo	4441	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	4442	function read_mathml(){\
		4443	var reply = new Array();\
		4444	var p = 0;\
		4445	if( document.getElementById(\"mathml0\")){\
		4446	while(document.getElementById(\"mathml\"+p)){\
		4447	reply[p] = document.getElementById(\"mathml\"+p).value;\
		4448	p++;\
		4449	};\
		4450	};\
		4451	return reply;\
		4452	};\
		4453	this.read_mathml = read_mathml;\n\
7653	schaersvoo	4454	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	4455	break;
		4456	case 17: fprintf(js_include_file,"\
8257	schaersvoo	4457	\n<!-- begin function 17 read_canvas%d() -->\n\
		4458	read_canvas%d = function(){\
7614	schaersvoo	4459	if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
		4460	return userdraw_text;\
8108	schaersvoo	4461	};\n\
8257	schaersvoo	4462	<!-- end function 17 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4463	break;
		4464	case 18: fprintf(js_include_file,"\
8257	schaersvoo	4465	\n<!-- begin function 18 read_canvas%d() -->\n\
		4466	read_canvas%d = function(){\
7614	schaersvoo	4467	var p = 0;\
		4468	var reply = new Array();\
		4469	var name;\
		4470	var t = true;\
8000	schaersvoo	4471	var h;var m;var s;\
7614	schaersvoo	4472	while(t){\
8000	schaersvoo	4473	try{\
		4474	name = eval('clocks'+p);\
		4475	h = name.H;m = name.M;s = name.S;\
		4476	if(s < 0){s = 60 + s;m = m - 1;};\
		4477	if(m < 0){m = 60 + m;h = h - 1;};\
		4478	if(h < 0){h = 12 + h;};\
		4479	h = parseInt((h+m/60+s/3600)%%12);m = parseInt((m + s/60)%%60);s = parseInt(s%%60);\
		4480	reply[p] = h+\":\"+m+\":\"+s;\
		4481	p++;\
		4482	}catch(e){t=false;};\
7614	schaersvoo	4483	};\
8000	schaersvoo	4484	if( p == 0 ){alert(\"clock(s) not modified...\");return;}\
7614	schaersvoo	4485	return reply;\
8108	schaersvoo	4486	};\n\
8257	schaersvoo	4487	<!-- end function 18 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4488	break;
		4489	case 19: fprintf(js_include_file,"\
8257	schaersvoo	4490	\n<!-- begin function 19 read_canvas%d() -->\n\
		4491	read_canvas%d = function(){\
7614	schaersvoo	4492	return reply[0];\
8108	schaersvoo	4493	};\n\
8257	schaersvoo	4494	<!-- end function 19 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
8130	schaersvoo	4495	break;
7614	schaersvoo	4496	case 20: fprintf(js_include_file,"\
8257	schaersvoo	4497	\n<!-- begin function 20 read_canvas%d() -->\n\
		4498	read_canvas%d = function(){\
8074	schaersvoo	4499	var prec = %d;\
7614	schaersvoo	4500	var len = ext_drag_images.length;\
		4501	var reply = new Array(len);\
		4502	for(var p = 0 ; p < len ; p++){\
		4503	var img = ext_drag_images[p];\
8074	schaersvoo	4504	reply[p] = (Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
7614	schaersvoo	4505	};\
		4506	return reply;\
8108	schaersvoo	4507	};\n\
8257	schaersvoo	4508	<!-- end function 20 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4509	break;
		4510	case 21: fprintf(js_include_file,"\
8257	schaersvoo	4511	\n<!-- begin function 21 read_canvas%d() -->\n\
		4512	read_canvas%d = function(){\
7614	schaersvoo	4513	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		4514	var reply_coord = new Array();var p = 0;\
8074	schaersvoo	4515	var prec = %d;\
7614	schaersvoo	4516	while(userdraw_x[p]){\
8074	schaersvoo	4517	reply_coord[p] = \"(\"+(Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\")\";\
7614	schaersvoo	4518	p++;\
		4519	};\
		4520	if(p == 0){alert(\"nothing drawn...\");return;};\
		4521	if( document.getElementById(\"canvas_input0\") ){\
		4522	var p = 0;var input_reply = new Array();\
		4523	if( document.getElementById(\"canvas_input0\")){\
		4524	var t = 0;\
		4525	while(document.getElementById(\"canvas_input\"+t)){\
		4526	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4527	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4528	p++;\
		4529	};\
		4530	t++;\
		4531	};\
		4532	};\
		4533	if( typeof userdraw_text != 'undefined' ){\
		4534	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4535	}\
		4536	else\
		4537	{\
		4538	return reply_coord+\"\\n\"+input_reply;\
		4539	}\
		4540	}\
		4541	else\
		4542	{\
		4543	if( typeof userdraw_text != 'undefined' ){\
		4544	return reply_coord+\"\\n\"+userdraw_text;\
		4545	}\
		4546	else\
		4547	{\
		4548	return reply_coord;\
		4549	};\
		4550	};\
8108	schaersvoo	4551	};\n\
8257	schaersvoo	4552	<!-- end function 21 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4553	break;
		4554	case 22: fprintf(js_include_file,"\
8257	schaersvoo	4555	\n<!-- begin function 22 read_canvas%d() -->\n\
		4556	read_canvas%d = function(){\
7614	schaersvoo	4557	var reply = new Array();\
7963	schaersvoo	4558	var lu = userdraw_x.length;\
		4559	if(lu == 0){alert(\"nothing drawn...\");return;};\
7614	schaersvoo	4560	var idx = 0;\
8074	schaersvoo	4561	var prec = %d;\
7963	schaersvoo	4562	for(var p = 0 ; p < lu ; p++){\
8074	schaersvoo	4563	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;idx++;\
		4564	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;idx++;\
7614	schaersvoo	4565	};\
		4566	if( document.getElementById(\"canvas_input0\") ){\
		4567	var p = 0;var input_reply = new Array();\
		4568	if( document.getElementById(\"canvas_input0\")){\
		4569	var t = 0;\
		4570	while(document.getElementById(\"canvas_input\"+t)){\
		4571	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4572	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4573	p++;\
		4574	};\
		4575	t++;\
		4576	};\
		4577	};\
		4578	if( typeof userdraw_text != 'undefined' ){\
		4579	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4580	}\
		4581	else\
		4582	{\
		4583	return reply +\"\\n\"+input_reply;\
		4584	}\
		4585	}\
		4586	else\
		4587	{\
		4588	if( typeof userdraw_text != 'undefined' ){\
		4589	return reply +\"\\n\"+userdraw_text;\
		4590	}\
		4591	else\
		4592	{\
		4593	return reply;\
		4594	}\
		4595	};\
8108	schaersvoo	4596	};\n\
8257	schaersvoo	4597	<!-- end function 22 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	4598	break;
7782	schaersvoo	4599	case 23: fprintf(js_include_file,"\
8257	schaersvoo	4600	\n<!-- begin function 23 read_canvas%d() default 5 px marge -->\n\
		4601	read_canvas%d = function(){\
7782	schaersvoo	4602	if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
		4603	var lu = userdraw_x.length;\
		4604	if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
7962	schaersvoo	4605	var reply_x = new Array();var reply_y = new Array();\
		4606	var marge = 5;var p = 0;\
8074	schaersvoo	4607	var prec = %d;\
7782	schaersvoo	4608	for(var i = 0; i < lu - 1 ; i++ ){\
7962	schaersvoo	4609	if( Math.abs(userdraw_x[i] - userdraw_x[i+1])){\
8074	schaersvoo	4610	reply_x[p] = (Math.round(prec(px2x(userdraw_x[i]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[i]))))/prec;\
7962	schaersvoo	4611	if( isNaN(reply_x[p]) \|\| isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
		4612	p++;\
7782	schaersvoo	4613	};\
8074	schaersvoo	4614	reply_x[p] = (Math.round(prec(px2x(userdraw_x[lu-1]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[lu-1]))))/prec;\
7782	schaersvoo	4615	};\
		4616	if( document.getElementById(\"canvas_input0\")){\
		4617	var p = 0;var input_reply = new Array();\
		4618	if( document.getElementById(\"canvas_input0\")){\
		4619	var t = 0;\
		4620	while(document.getElementById(\"canvas_input\"+t)){\
		4621	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4622	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4623	p++;\
		4624	};\
		4625	t++;\
		4626	};\
		4627	};\
		4628	if( typeof userdraw_text != 'undefined' ){\
		4629	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4630	}\
		4631	else\
		4632	{\
		4633	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		4634	}\
		4635	}\
		4636	else\
		4637	{\
		4638	if( typeof userdraw_text != 'undefined' ){\
		4639	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		4640	}\
		4641	else\
		4642	{\
		4643	return reply_x+\"\\n\"+reply_y;\
		4644	};\
		4645	};\
8108	schaersvoo	4646	};\n\
8257	schaersvoo	4647	<!-- end function 23 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7782	schaersvoo	4648	break;
7984	schaersvoo	4649	case 24: fprintf(js_include_file,"\n\
8257	schaersvoo	4650	<!-- begin function 24 read_canvas%d() -->\n\
		4651	read_canvas%d = function(){\
7984	schaersvoo	4652	var input_reply = new Array();\
		4653	var p = 0;\
		4654	if( document.getElementById(\"canvas_input0\")){\
		4655	while(document.getElementById(\"canvas_input\"+p)){\
		4656	input_reply[p] = document.getElementById(\"canvas_input\"+p).value;\
		4657	p++;\
		4658	};\
		4659	return input_reply;\
		4660	};\
8108	schaersvoo	4661	};\n\
8257	schaersvoo	4662	<!-- end function 24 read_canvas%d() -->",canvas_root_id,canvas_root_id,canvas_root_id);
7984	schaersvoo	4663	break;
8083	schaersvoo	4664	case 25:
8257	schaersvoo	4665	fprintf(js_include_file,"\n<!-- begin function 25 read_canvas%d() : angle(s) in degrees-->\n\
		4666	read_canvas%d = function(){\
8083	schaersvoo	4667	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		4668	var lu = userdraw_radius.length;\
		4669	var prec = %d;\
		4670	var angle_reply = new Array(lu);\
		4671	for(var p = 0 ; p < lu ; p++){\
		4672	angle_reply[p] = (Math.round(prec180(userdraw_radius[p])/Math.PI))/prec;\
		4673	};\
		4674	return angle_reply;\
8108	schaersvoo	4675	};\n\
8257	schaersvoo	4676	<!-- end function 25 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	4677	break;
		4678	case 26:
8257	schaersvoo	4679	fprintf(js_include_file,"\n<!-- begin function 26 read_canvas%d() : angle(s) in radians-->\n\
		4680	read_canvas%d = function(){\
8083	schaersvoo	4681	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		4682	var lu = userdraw_radius.length;\
		4683	var prec = %d;\
		4684	var angle_reply = new Array(lu);\
		4685	for(var p = 0 ; p < lu ; p++){\
		4686	angle_reply[p] = (Math.round(prec*(userdraw_radius[p])))/prec;\
		4687	};\
		4688	return angle_reply;\
8108	schaersvoo	4689	};\n\
8257	schaersvoo	4690	<!-- end function 26 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	4691	break;
8127	schaersvoo	4692	case 27:
8257	schaersvoo	4693	fprintf(js_include_file,"\n<!-- begin function 27 read_canvas%d() : inputfield(s) location and their values : -->\n\
		4694	read_canvas%d = function(){\
8127	schaersvoo	4695	var lu = userdraw_x.length;\
		4696	if( lu < 1){alert(\"nothing drawn...\");return;}\
		4697	set_reply_precision();\
		4698	var prec = %d;\
		4699	for(var p = 0 ; p < lu ; p++){\
		4700	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\":\"+ document.getElementById(\"canvas_input\"+p).value;\
		4701	};\
		4702	return reply;\
		4703	};\n\
8257	schaersvoo	4704	<!-- end function 27 read_canvas%d() -->",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8127	schaersvoo	4705	break;
7614	schaersvoo	4706	default: canvas_error("hmmm unknown replyformat...");break;
		4707	}
		4708	return;
		4709	}
		4710
		4711
8224	bpr	4712	/*
		4713	add drawfunction :
7614	schaersvoo	4714	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		4715	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		4716	- grid / mathml
		4717	- will not scale or zoom in
		4718	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
8224	bpr	4719	- is printed directly into 'js_include_file'
7614	schaersvoo	4720	*/
		4721
		4722	void add_javascript_functions(int js_functions[],int canvas_root_id){
		4723	int i;
		4724	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
		4725	if( js_functions[i] == 1){
		4726	switch(i){
		4727	case DRAG_EXTERNAL_IMAGE:
		4728	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	4729	var external_canvas = create_canvas%d(7,xsize,ysize);\
		4730	var external_ctx = external_canvas.getContext(\"2d\");\
		4731	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		4732	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		4733	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		4734	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		4735	var selected_image = null;\
		4736	var ext_image_cnt = 0;\
		4737	var ext_drag_images = new Array();\
		4738	function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
		4739	ext_image_cnt = idx;\
		4740	var image = new Image();\
		4741	image.src = URL;\
		4742	image.onload = function(){\
		4743	if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
		4744	if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
		4745	if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
8112	schaersvoo	4746	var img = new Array(10);\
7653	schaersvoo	4747	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
		4748	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
		4749	ext_drag_images[idx] = img;\
		4750	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4751	};\
		4752	};\
		4753	function dragstop(evt){\
		4754	selected_image = null;return;\
		4755	};\
		4756	function dragxy(evt){\
		4757	if( selected_image != null ){\
		4758	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4759	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4760	var s_img = ext_drag_images[selected_image];\
		4761	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		4762	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
		4763	ext_drag_images[selected_image] = s_img;\
		4764	external_ctx.clearRect(0,0,xsize,ysize);\
		4765	for(var i = 0; i <= ext_image_cnt ; i++){\
		4766	var img = ext_drag_images[i];\
		4767	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4768	};\
		4769	};\
		4770	};\
		4771	function setxy(evt){\
		4772	if( ! selected_image && evt.which == 1 ){\
		4773	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4774	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4775	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		4776	var ym = evt.clientY - external_canvas_rect.top + yoff;\
		4777	for(var p = 0 ; p <= ext_image_cnt ; p++){\
		4778	var img = ext_drag_images[p];\
		4779	if( img[0] == 1 ){\
		4780	var w = img.width;\
		4781	var h = img.height;\
		4782	if( xm > img[6] && xm < img[6] + img[4]){\
		4783	if( ym > img[7] && ym < img[7] + img[5]){\
		4784	img[6] = xm;\
		4785	img[7] = ym;\
		4786	ext_drag_images[p] = img;\
		4787	selected_image = p;\
		4788	dragxy(evt);\
		4789	};\
		4790	};\
		4791	};\
		4792	};\
		4793	}\
		4794	else\
		4795	{\
		4796	selected_image = null;\
		4797	};\
7614	schaersvoo	4798	};",canvas_root_id);
		4799	break;
		4800
		4801	case DRAW_EXTERNAL_IMAGE:
		4802	fprintf(js_include_file,"\n<!-- draw external images -->\n\
8105	schaersvoo	4803	var draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
7614	schaersvoo	4804	var image = new Image();\
		4805	image.src = URL;\
		4806	var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
		4807	image.onload = function(){\
		4808	if( x0 < 1 ){ x0 = 0; };\
		4809	if( y0 < 1 ){ y0 = 0; };\
		4810	if( sx < 1 ){ sx = 0; };\
		4811	if( sy < 1 ){ sy = 0; };\
		4812	if( width < 1 ){ width = image.width;};\
		4813	if( height < 1 ){ height = image.height;};\
		4814	if( swidth < 1 ){ swidth = image.width;};\
		4815	if( sheight < 1 ){ sheight = image.height;};\
		4816	var ml = x0 - sx;\
		4817	var mh = y0 - sy;\
		4818	canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
		4819	canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
		4820	canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
		4821	canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
		4822	canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
		4823	};\
8224	bpr	4824	};",canvas_root_id);
7614	schaersvoo	4825	break;
		4826	case DRAW_GRIDFILL:/* not used for userdraw */
		4827	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
8105	schaersvoo	4828	var draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
7614	schaersvoo	4829	var obj;\
		4830	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4831	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4832	}\
		4833	else\
		4834	{\
		4835	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4836	};\
		4837	var ctx = obj.getContext(\"2d\");\
		4838	var x,y;\
7883	schaersvoo	4839	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4840	ctx.save();\
		4841	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4842	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4843	ctx.moveTo(x,y0);\
		4844	ctx.lineTo(x,ysize);\
		4845	};\
7645	schaersvoo	4846	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	4847	ctx.moveTo(x0,y);\
		4848	ctx.lineTo(xsize,y);\
		4849	};\
		4850	ctx.stroke();\
		4851	ctx.restore();\
7653	schaersvoo	4852	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4853	break;
8224	bpr	4854
7614	schaersvoo	4855	case DRAW_IMAGEFILL:/* not used for userdraw */
		4856	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
8105	schaersvoo	4857	var draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
7614	schaersvoo	4858	var obj;\
		4859	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4860	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4861	}\
		4862	else\
		4863	{\
		4864	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4865	};\
		4866	var ctx = obj.getContext(\"2d\");\
		4867	ctx.save();\
		4868	var img = new Image();\
		4869	img.src = URL;\
		4870	img.onload = function(){\
		4871	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		4872	ctx.drawImage(img,x0,y0,xsize,ysize);\
		4873	}\
		4874	else\
		4875	{\
		4876	var repeat = \"repeat\";\
		4877	if(img.width > xsize - x0){\
		4878	repeat = \"repeat-y\";\
		4879	}\
		4880	else\
		4881	{\
		4882	if( img.height > ysize -x0 ){\
		4883	repeat = \"repeat-x\";\
		4884	}\
		4885	}\
		4886	var pattern = ctx.createPattern(img,repeat);\
		4887	ctx.rect(x0,y0,xsize,ysize);\
		4888	ctx.fillStyle = pattern;\
		4889	}\
		4890	ctx.fill();\
		4891	};\
		4892	ctx.restore();\
		4893	return;\
7653	schaersvoo	4894	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4895	break;
8224	bpr	4896
7614	schaersvoo	4897	case DRAW_DOTFILL:/* not used for userdraw */
		4898	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
8105	schaersvoo	4899	var draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
7614	schaersvoo	4900	var obj;\
		4901	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4902	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4903	}\
		4904	else\
		4905	{\
		4906	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4907	};\
		4908	var ctx = obj.getContext(\"2d\");\
		4909	var x,y;\
		4910	ctx.closePath();\
		4911	ctx.save();\
7645	schaersvoo	4912	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4913	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4914	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4915	for( y = y0 ; y < ysize+dy ; y = y + dy ){\
		4916	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		4917	ctx.closePath();\
		4918	}\
		4919	}\
		4920	ctx.fill();\
		4921	ctx.restore();\
7653	schaersvoo	4922	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4923	break;
7645	schaersvoo	4924
7647	schaersvoo	4925	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	4926	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	4927	var draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	4928	var obj;\
		4929	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4930	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4931	}\
		4932	else\
		4933	{\
		4934	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4935	};\
		4936	var ctx = obj.getContext(\"2d\");\
		4937	var x;\
		4938	var y;\
		4939	ctx.save();\
		4940	ctx.lineWidth = linewidth;\
		4941	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4942	y = ysize;\
		4943	for( x = x0 ; x < xsize ; x = x + dx ){\
		4944	ctx.moveTo(x,y0);\
		4945	ctx.lineTo(xsize,y);\
		4946	y = y - dy;\
		4947	};\
		4948	y = y0;\
		4949	for( x = xsize ; x > 0 ; x = x - dx){\
		4950	ctx.moveTo(x,ysize);\
		4951	ctx.lineTo(x0,y);\
		4952	y = y + dy;\
		4953	};\
		4954	x = x0;\
		4955	for( y = y0 ; y < ysize ; y = y + dy ){\
		4956	ctx.moveTo(xsize,y);\
		4957	ctx.lineTo(x,ysize);\
		4958	x = x + dx;\
		4959	};\
		4960	x = xsize;\
		4961	for( y = ysize ; y > y0 ; y = y - dy ){\
		4962	ctx.moveTo(x,y0);\
		4963	ctx.lineTo(x0,y);\
		4964	x = x - dx;\
		4965	};\
		4966	ctx.stroke();\
		4967	ctx.restore();\
		4968	return;\
7653	schaersvoo	4969	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4970	break;
8224	bpr	4971
7647	schaersvoo	4972	case DRAW_HATCHFILL:/* not used for userdraw */
		4973	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
8105	schaersvoo	4974	var draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7647	schaersvoo	4975	var obj;\
		4976	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4977	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4978	}\
		4979	else\
		4980	{\
		4981	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4982	};\
		4983	var ctx = obj.getContext(\"2d\");\
		4984	var x;\
		4985	var y;\
		4986	ctx.save();\
		4987	ctx.lineWidth = linewidth;\
		4988	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4989	y = ysize;\
		4990	for( x = x0 ; x < xsize ; x = x + dx ){\
		4991	ctx.moveTo(x,y0);\
		4992	ctx.lineTo(xsize,y);\
		4993	y = y - dy;\
		4994	};\
		4995	y = y0;\
		4996	for( x = xsize ; x >= dx ; x = x - dx){\
		4997	ctx.moveTo(x,ysize);\
		4998	ctx.lineTo(x0,y);\
		4999	y = y + dy;\
		5000	};\
		5001	ctx.stroke();\
		5002	ctx.restore();\
		5003	return;\
7653	schaersvoo	5004	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	5005	break;
7614	schaersvoo	5006	case DRAW_CIRCLES:/* used for userdraw */
		5007	fprintf(js_include_file,"\n<!-- draw circles -->\n\
8105	schaersvoo	5008	var draw_circles = function(ctx,x_points,y_points,radius,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5009	ctx.save();\
8071	schaersvoo	5010	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5011	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5012	ctx.lineWidth = line_width;\
		5013	for(var p = 0 ; p < x_points.length ; p++ ){\
		5014	ctx.beginPath();\
		5015	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		5016	ctx.closePath();\
		5017	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5018	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5019	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5020	ctx.stroke();\
		5021	}\
		5022	ctx.restore();\
		5023	return;\
7653	schaersvoo	5024	};");
7614	schaersvoo	5025	break;
7663	schaersvoo	5026	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		5027	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
8105	schaersvoo	5028	var draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7663	schaersvoo	5029	ctx.save();\
8071	schaersvoo	5030	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7663	schaersvoo	5031	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5032	ctx.lineWidth = line_width;\
		5033	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5034	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5035	ctx.clearRect(0,0,xsize,ysize);\
		5036	ctx.beginPath();\
		5037	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		5038	ctx.moveTo(x_points[p],y_points[p]);\
		5039	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		5040	}\
		5041	ctx.closePath();\
		5042	ctx.stroke();\
		5043	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5044	for(var p = 0 ; p < x_points.length ; p++ ){\
		5045	ctx.beginPath();\
		5046	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		5047	ctx.closePath();ctx.fill();ctx.stroke();\
		5048	};\
		5049	ctx.restore();\
		5050	return;\
		5051	};");
		5052	break;
8224	bpr	5053
7614	schaersvoo	5054	case DRAW_SEGMENTS:/* used for userdraw */
		5055	fprintf(js_include_file,"\n<!-- draw segments -->\n\
8105	schaersvoo	5056	var draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5057	ctx.save();\
8071	schaersvoo	5058	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5059	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5060	ctx.lineWidth = line_width;\
		5061	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5062	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5063	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5064	ctx.beginPath();\
		5065	ctx.moveTo(x_points[p],y_points[p]);\
		5066	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		5067	ctx.closePath();\
		5068	ctx.stroke();\
		5069	}\
		5070	ctx.restore();\
		5071	return;\
		5072	};");
		5073	break;
8224	bpr	5074
7614	schaersvoo	5075	case DRAW_LINES:/* used for userdraw */
		5076	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		5077	function calc_line(x1,x2,y1,y2){\
		5078	var marge = 2;\
		5079	if(x1 < x2+marge && x1>x2-marge){\
		5080	return [x1,0,x1,ysize];\
		5081	};\
		5082	if(y1 < y2+marge && y1>y2-marge){\
		5083	return [0,y1,xsize,y1];\
		5084	};\
		5085	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		5086	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		5087	return [0,Y1,xsize,Y2];\
		5088	};\
8105	schaersvoo	5089	var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5090	ctx.save();\
		5091	var line = new Array(4);\
8071	schaersvoo	5092	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5093	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5094	ctx.lineWidth = line_width;\
		5095	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5096	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5097	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5098	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		5099	ctx.beginPath();\
		5100	ctx.moveTo(line[0],line[1]);\
		5101	ctx.lineTo(line[2],line[3]);\
		5102	ctx.closePath();\
		5103	ctx.stroke();\
		5104	}\
		5105	ctx.restore();\
		5106	return;\
		5107	};");
		5108	break;
		5109
8244	schaersvoo	5110	case DRAW_DEMILINES:/* used for userdraw */
		5111	fprintf(js_include_file,"\n<!-- draw demilines -->\n\
		5112	function find_inf_point(x1,y1,x2,y2){\
		5113	if(x1<x2+2 && x1>x2-2){if(y1<y2){return [x1,y1,x1,ysize];}else{return [x1,0,x1,y1];};};\
		5114	var rc = (y2 - y1)/(x2 - x1);var q = y1 - (x1)*rc;\
		5115	if( x1 < x2 ){ return [x1,y1,xsize,rc*xsize+q];}else{return [x1,y1,0,q];};\
		5116	};\
		5117	var draw_demilines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
		5118	ctx.save();\
		5119	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
		5120	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5121	ctx.lineWidth = line_width;\
		5122	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5123	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5124	var pair = new Array(4);\
		5125	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		5126	pair = find_inf_point(x_points[p],y_points[p],x_points[p+1],y_points[p+1]);\
		5127	ctx.beginPath();\
		5128	ctx.moveTo(pair[0],pair[1]);\
		5129	ctx.lineTo(pair[2],pair[3]);\
		5130	ctx.closePath();\
		5131	ctx.stroke();\
		5132	}\
		5133	ctx.restore();\
		5134	return;\
		5135	};");
		5136	break;
		5137
7614	schaersvoo	5138	case DRAW_CROSSHAIRS:/* used for userdraw */
		5139	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
8105	schaersvoo	5140	var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
8071	schaersvoo	5141	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5142	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5143	ctx.lineWidth = line_width;\
		5144	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5145	var x1,x2,y1,y2;\
		5146	for(var p = 0 ; p < x_points.length ; p++ ){\
		5147	x1 = x_points[p] - crosshair_size;\
		5148	x2 = x_points[p] + crosshair_size;\
		5149	y1 = y_points[p] - crosshair_size;\
		5150	y2 = y_points[p] + crosshair_size;\
		5151	ctx.beginPath();\
		5152	ctx.moveTo(x1,y1);\
		5153	ctx.lineTo(x2,y2);\
		5154	ctx.closePath();\
		5155	ctx.stroke();\
		5156	ctx.beginPath();\
		5157	ctx.moveTo(x2,y1);\
		5158	ctx.lineTo(x1,y2);\
		5159	ctx.closePath();\
		5160	ctx.stroke();\
		5161	}\
		5162	ctx.restore();\
		5163	return;\
7653	schaersvoo	5164	};");
7614	schaersvoo	5165	break;
		5166
		5167	case DRAW_RECTS:/* used for userdraw */
		5168	fprintf(js_include_file,"\n<!-- draw rects -->\n\
8105	schaersvoo	5169	var draw_rects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5170	ctx.save();\
8071	schaersvoo	5171	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5172	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5173	ctx.lineWidth = line_width;\
		5174	ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
		5175	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		5176	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		5177	ctx.beginPath();\
		5178	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		5179	ctx.closePath();\
		5180	if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5181	ctx.stroke();\
		5182	};\
		5183	ctx.restore();\
		5184	return;\
7653	schaersvoo	5185	};");
7614	schaersvoo	5186	break;
		5187
		5188	case DRAW_ROUNDRECTS:/* used for userdraw */
		5189	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
8105	schaersvoo	5190	var draw_roundrects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5191	ctx.save();\
8071	schaersvoo	5192	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5193	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5194	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5195	var x,y,w,h,r;\
		5196	for(var p = 0; p < x_points.length; p = p+2){\
		5197	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);\
		5198	ctx.beginPath();ctx.moveTo(x + r, y);\
		5199	ctx.lineTo(x + w - r, y);\
		5200	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		5201	ctx.lineTo(x + w, y + h - r);\
		5202	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		5203	ctx.lineTo(x + r, y + h);\
		5204	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		5205	ctx.lineTo(x, y + r);\
		5206	ctx.quadraticCurveTo(x, y, x + r, y);\
		5207	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		5208	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5209	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		5210	ctx.stroke();\
		5211	}\
		5212	ctx.restore();\
7653	schaersvoo	5213	};");
8224	bpr	5214	break;
7614	schaersvoo	5215
		5216	case DRAW_ELLIPSES:/* not used for userdraw */
		5217	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
8105	schaersvoo	5218	var draw_ellipses = function(canvas_type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5219	var obj;\
		5220	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5221	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5222	}\
		5223	else\
		5224	{\
		5225	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5226	};\
		5227	var ctx = obj.getContext(\"2d\");\
		5228	ctx.save();\
8071	schaersvoo	5229	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5230	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5231	var cx,cy,ry,rx;\
		5232	ctx.lineWidth = line_width;\
		5233	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		5234	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5235	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5236	for(var p=0;p< x_points.length;p = p+2){\
		5237	ctx.beginPath();\
		5238	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		5239	ctx.translate(cx - rx, cy - ry);\
		5240	ctx.scale(rx, ry);\
		5241	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		5242	if( use_filled == 1 ){ctx.fill();}\
		5243	ctx.stroke();\
		5244	};\
		5245	ctx.restore();\
7653	schaersvoo	5246	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5247	break;
		5248
		5249	case DRAW_PATHS: /* used for userdraw */
		5250	fprintf(js_include_file,"\n<!-- draw paths -->\n\
8105	schaersvoo	5251	var draw_paths = function(ctx,x_points,y_points,line_width,closed_path,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5252	ctx.save();\
8071	schaersvoo	5253	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5254	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5255	ctx.lineWidth = line_width;\
		5256	ctx.lineJoin = \"round\";\
		5257	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5258	ctx.beginPath();\
		5259	ctx.moveTo(x_points[0],y_points[0]);\
		5260	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		5261	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		5262	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5263	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		5264	ctx.stroke();\
		5265	ctx.restore();\
		5266	return;\
		5267	};");
8224	bpr	5268
7614	schaersvoo	5269	break;
		5270	case DRAW_ARROWS:/* used for userdraw */
		5271	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
8105	schaersvoo	5272	var draw_arrows = function(ctx,x_points,y_points,arrow_head,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,type,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	5273	ctx.save();\
8071	schaersvoo	5274	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	5275	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5276	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5277	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5278	ctx.lineWidth = line_width;\
		5279	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5280	ctx.lineCap = \"round\";\
		5281	var x1,y1,x2,y2,dx,dy,len;\
		5282	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
7874	schaersvoo	5283	ctx.save();\
7614	schaersvoo	5284	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		5285	len = Math.sqrt(dxdx+dydy);\
		5286	ctx.translate(x2,y2);\
		5287	ctx.rotate(Math.atan2(dy,dx));\
		5288	ctx.lineCap = \"round\";\
		5289	ctx.beginPath();\
		5290	ctx.moveTo(0,0);\
		5291	ctx.lineTo(-len,0);\
		5292	ctx.closePath();\
		5293	ctx.stroke();\
		5294	ctx.beginPath();\
		5295	ctx.moveTo(0,0);\
		5296	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		5297	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		5298	ctx.closePath();\
		5299	ctx.fill();\
7874	schaersvoo	5300	ctx.restore();\
7614	schaersvoo	5301	if( type == 2 ){\
		5302	ctx.save();\
		5303	ctx.translate(x1,y1);\
		5304	ctx.rotate(Math.atan2(-dy,-dx));\
		5305	ctx.beginPath();\
		5306	ctx.moveTo(0,0);\
		5307	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		5308	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		5309	ctx.closePath();\
		5310	ctx.stroke();\
		5311	ctx.fill();\
7874	schaersvoo	5312	ctx.restore();\
7614	schaersvoo	5313	}\
		5314	}\
		5315	ctx.restore();\
		5316	return;\
7653	schaersvoo	5317	};");
7614	schaersvoo	5318	break;
		5319
		5320	case DRAW_VIDEO:/* not used for userdraw */
		5321	fprintf(js_include_file,"\n<!-- draw video -->\n\
8105	schaersvoo	5322	var draw_video = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	5323	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5324	var video_div = document.createElement(\"div\");\
		5325	canvas_div.appendChild(video_div);\
		5326	video_div.style.position = \"absolute\";\
		5327	video_div.style.left = x+\"px\";\
		5328	video_div.style.top = y+\"px\";\
		5329	video_div.style.width = w+\"px\";\
		5330	video_div.style.height = h+\"px\";\
		5331	var video = document.createElement(\"video\");\
		5332	video_div.appendChild(video);\
		5333	video.style.width = w+\"px\";\
		5334	video.style.height = h+\"px\";\
		5335	video.autobuffer = true;\
		5336	video.controls = true;video.autoplay = false;\
		5337	var src = document.createElement(\"source\");\
		5338	src.type = \"video/mp4\";\
		5339	src.src = URL;\
		5340	video.appendChild(src);\
		5341	video.load();\
		5342	return;\
8224	bpr	5343	};");
7614	schaersvoo	5344	break;
8224	bpr	5345
7614	schaersvoo	5346	case DRAW_AUDIO:/* not used for userdraw */
		5347	fprintf(js_include_file,"\n<!-- draw audio -->\n\
8105	schaersvoo	5348	var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
7614	schaersvoo	5349	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5350	var audio_div = document.createElement(\"div\");\
		5351	canvas_div.appendChild(audio_div);\
		5352	audio_div.style.position = \"absolute\";\
		5353	audio_div.style.left = x+\"px\";\
		5354	audio_div.style.top = y+\"px\";\
		5355	audio_div.style.width = w+\"px\";\
		5356	audio_div.style.height = h+\"px\";\
		5357	var audio = document.createElement(\"audio\");\
		5358	audio_div.appendChild(audio);\
		5359	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		5360	audio.autobuffer = true;\
		5361	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
		5362	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
		5363	var src1 = document.createElement(\"source\");\
		5364	src1.type = \"audio/ogg\";\
		5365	src1.src = URL1;\
		5366	audio.appendChild(src1);\
		5367	var src2 = document.createElement(\"source\");\
		5368	src2.type = \"audio/mpeg\";\
		5369	src2.src = URL2;\
		5370	audio.appendChild(src2);\
		5371	audio.load();\
		5372	return;\
7653	schaersvoo	5373	};");
7614	schaersvoo	5374	break;
8224	bpr	5375
7614	schaersvoo	5376	case DRAW_HTTP:/* not used for userdraw */
		5377	fprintf(js_include_file,"\n<!-- draw http -->\n\
8105	schaersvoo	5378	var draw_http = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	5379	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5380	var http_div = document.createElement(\"div\");\
		5381	var iframe = document.createElement(\"iframe\");\
		5382	canvas_div.appendChild(http_div);\
		5383	http_div.appendChild(iframe);\
		5384	iframe.src = URL;\
		5385	iframe.setAttribute(\"width\",w);\
		5386	iframe.setAttribute(\"height\",h);\
		5387	return;\
7653	schaersvoo	5388	};");
7614	schaersvoo	5389	break;
8224	bpr	5390
7614	schaersvoo	5391	case DRAW_XML:
		5392	fprintf(js_include_file,"\n<!-- draw xml -->\n\
8105	schaersvoo	5393	var draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
7614	schaersvoo	5394	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		5395	var xml_div = document.createElement(\"div\");\
		5396	canvas_div.appendChild(xml_div);\
		5397	xml_div.innerHTML = mathml;\
		5398	if(onclick != 0){\
		5399	xml_div.onclick = function(){\
		5400	reply[0] = onclick;\
		5401	alert(\"send \"+onclick+\" ?\");\
		5402	};\
		5403	};\
		5404	xml_div.style.position = \"absolute\";\
		5405	xml_div.style.left = x+\"px\";\
		5406	xml_div.style.top = y+\"px\";\
		5407	xml_div.style.width = w+\"px\";\
		5408	xml_div.style.height = h+\"px\";\
		5409	return;\
7653	schaersvoo	5410	};"
7614	schaersvoo	5411	);
		5412	break;
7654	schaersvoo	5413	case DRAW_SGRAPH:
8224	bpr	5414	/*
7654	schaersvoo	5415	xstart = given
		5416	ystart = given
		5417	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		5418	*/
		5419	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
8105	schaersvoo	5420	var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
7658	schaersvoo	5421	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);};\
		5422	var ctx = obj.getContext(\"2d\");\
		5423	ctx.font = fontfamily;\
		5424	var minor_opacity = 0.8*opacity;\
		5425	ctx.clearRect(0,0,xsize,ysize);\
7976	schaersvoo	5426	var zero_x = 0.1*xsize;\
		5427	var zero_y = 0.9*ysize;\
8129	schaersvoo	5428	var snor_x;var snor_y;\
7654	schaersvoo	5429	if( xstart != xmin){\
7658	schaersvoo	5430	snor_x = 0.1*xsize;\
		5431	}\
		5432	else\
		5433	{\
		5434	snor_x = 0;\
		5435	xstart = xmin;\
		5436	};\
		5437	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5438	ctx.lineWidth = 2;\
		5439	ctx.beginPath();\
		5440	ctx.moveTo(xsize,zero_y);\
		5441	ctx.lineTo(zero_x,zero_y);\
		5442	ctx.lineTo(zero_x,0);\
		5443	ctx.stroke();\
		5444	ctx.closePath();\
		5445	ctx.beginPath();\
		5446	ctx.moveTo(zero_x,zero_y);\
		5447	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		5448	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		5449	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		5450	ctx.lineTo(zero_x + snor_x,zero_y);\
		5451	ctx.stroke();\
		5452	ctx.closePath();\
		5453	ctx.beginPath();\
		5454	var num = xstart;\
7660	schaersvoo	5455	var flipflop = 1;\
7658	schaersvoo	5456	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
7976	schaersvoo	5457	var txtsize;var txt_marge=step_x - 5;\
7658	schaersvoo	5458	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7976	schaersvoo	5459	txtsize = ctx.measureText(num).width;\
		5460	if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
		5461	if( flipflop == 1){\
		5462	ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
		5463	}\
		5464	else\
		5465	{\
		5466	ctx.fillText(num,x - 0.5txtsize,zero_y+2font_size);\
		5467	}\
		5468	num = num + xmajor;\
7658	schaersvoo	5469	};\
		5470	ctx.stroke();\
		5471	ctx.closePath();\
		5472	ctx.lineWidth = 1;\
		5473	ctx.beginPath();\
		5474	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		5475	ctx.moveTo(x,zero_y);\
		5476	ctx.lineTo(x,0);\
		5477	};\
		5478	ctx.stroke();\
		5479	ctx.closePath();\
		5480	if( xminor > 1){\
		5481	ctx.lineWidth = 0.5;\
		5482	ctx.beginPath();\
		5483	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		5484	var minor_step_x = step_x / xminor;\
		5485	var nx;\
		5486	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		5487	num = 1;\
		5488	for(var p = 1 ; p < xminor ; p++){\
		5489	nx = x + num*minor_step_x;\
		5490	ctx.moveTo(nx,zero_y);\
		5491	ctx.lineTo(nx,0);\
		5492	num++;\
		5493	};\
		5494	};\
		5495	ctx.stroke();\
		5496	ctx.closePath();\
		5497	ctx.beginPath();\
		5498	ctx.lineWidth = 2;\
		5499	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5500	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		5501	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		5502	};\
		5503	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		5504	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		5505	};\
		5506	ctx.stroke();\
		5507	ctx.closePath();\
		5508	ctx.lineWidth = 0.5;\
		5509	};\
		5510	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		5511	if( ystart != ymin){\
		5512	snor_y = 0.1*ysize;\
		5513	}\
		5514	else\
		5515	{\
		5516	snor_y = 0;\
		5517	ystart = ymin;\
		5518	};\
		5519	ctx.lineWidth = 2;\
		5520	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5521	ctx.beginPath();\
		5522	ctx.moveTo(zero_x,zero_y);\
		5523	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		5524	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		5525	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		5526	ctx.lineTo(zero_x,zero_y - snor_y);\
		5527	ctx.stroke();\
		5528	ctx.closePath();\
		5529	ctx.beginPath();\
		5530	ctx.lineWidth = 1;\
		5531	num = ystart;\
		5532	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		5533	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		5534	ctx.moveTo(zero_x,y);\
		5535	ctx.lineTo(xsize,y);\
		5536	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		5537	num = num + ymajor;\
		5538	};\
		5539	ctx.stroke();\
		5540	ctx.closePath();\
		5541	if( yminor > 1){\
		5542	ctx.lineWidth = 0.5;\
		5543	ctx.beginPath();\
		5544	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		5545	var minor_step_y = step_y / yminor;\
		5546	var ny;\
		5547	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		5548	num = 1;\
		5549	for(var p = 1 ;p < yminor;p++){\
		5550	ny = y + num*minor_step_y;\
		5551	ctx.moveTo(zero_x,ny);\
		5552	ctx.lineTo(xsize,ny);\
		5553	num++;\
		5554	};\
		5555	};\
		5556	ctx.stroke();\
		5557	ctx.closePath();\
		5558	ctx.lineWidth = 2;\
		5559	ctx.beginPath();\
		5560	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		5561	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		5562	ctx.moveTo(zero_x,y);\
		5563	ctx.lineTo(zero_x+12,y);\
		5564	};\
		5565	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		5566	ctx.moveTo(zero_x,y);\
		5567	ctx.lineTo(zero_x+6,y);\
		5568	};\
		5569	ctx.stroke();\
		5570	ctx.closePath();\
		5571	};\
		5572	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
7654	schaersvoo	5573	if( typeof legend%d !== 'undefined' ){\
		5574	ctx.globalAlpha = 1.0;\
		5575	var y_offset = 2*font_size;\
		5576	var txt;var txt_size;\
		5577	var x_offset = xsize - 2*font_size;\
		5578	var l_length = legend%d.length;var barcolor = new Array();\
		5579	if( typeof legendcolors%d !== 'undefined' ){\
		5580	for(var p = 0 ; p < l_length ; p++){\
		5581	barcolor[p] = legendcolors%d[p];\
		5582	};\
		5583	}else{\
		5584	if( barcolor.length == 0 ){\
		5585	for(var p = 0 ; p < l_length ; p++){\
		5586	barcolor[p] = stroke_color;\
		5587	};\
		5588	};\
		5589	};\
		5590	for(var p = 0; p < l_length; p++){\
		5591	ctx.fillStyle = barcolor[p];\
		5592	txt = legend%d[p];\
		5593	txt_size = ctx.measureText(txt).width;\
		5594	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		5595	y_offset = parseInt(y_offset + 1.5*font_size);\
		5596	};\
		5597	};\
7660	schaersvoo	5598	if( typeof xaxislabel !== 'undefined' ){\
7658	schaersvoo	5599	ctx.fillStyle = \'#000000\';\
		5600	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		5601	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		5602	};\
7660	schaersvoo	5603	if( typeof yaxislabel !== 'undefined'){\
7658	schaersvoo	5604	ctx.save();\
		5605	ctx.fillStyle = \'#000000\';\
		5606	var txt_size = ctx.measureText(yaxislabel).width;\
		5607	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		5608	ctx.rotate(-0.5*Math.PI);\
		5609	ctx.fillText(yaxislabel,0,0);\
7874	schaersvoo	5610	ctx.restore();\
7658	schaersvoo	5611	};\
7654	schaersvoo	5612	};\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);
		5613	break;
7614	schaersvoo	5614
		5615	case DRAW_GRID:/* not used for userdraw */
		5616	fprintf(js_include_file,"\n<!-- draw grid -->\n\
8105	schaersvoo	5617	var draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
7988	schaersvoo	5618	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);};\
		5619	var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
7614	schaersvoo	5620	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5621	ctx.save();\
8071	schaersvoo	5622	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	5623	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		5624	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5625	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		5626	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		5627	ctx.font = font_family;\
7988	schaersvoo	5628	var barcolor = new Array();\
7614	schaersvoo	5629	var xstep = xsize*xmajor/(xmax - xmin);\
		5630	var ystep = ysize*ymajor/(ymax - ymin);\
		5631	var x2step = xstep / xminor;\
		5632	var y2step = ystep / yminor;\
7996	schaersvoo	5633	var zero_x = x2px(0);;var zero_y = y2px(0);var f_x;var f_y;\
		5634	if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;}\
		5635	if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;}\
7614	schaersvoo	5636	ctx.beginPath();\
		5637	ctx.lineWidth = line_width;\
		5638	ctx.strokeStyle = stroke_color;\
		5639	for(var p = zero_x ; p < xsize; p = p + xstep){\
		5640	ctx.moveTo(p,0);\
		5641	ctx.lineTo(p,ysize);\
		5642	};\
		5643	for(var p = zero_x ; p > 0; p = p - xstep){\
		5644	ctx.moveTo(p,0);\
		5645	ctx.lineTo(p,ysize);\
		5646	};\
		5647	for(var p = zero_y ; p < ysize; p = p + ystep){\
		5648	ctx.moveTo(0,p);\
		5649	ctx.lineTo(xsize,p);\
		5650	};\
		5651	for(var p = zero_y ; p > 0; p = p - ystep){\
		5652	ctx.moveTo(0,p);\
		5653	ctx.lineTo(xsize,p);\
		5654	};\
		5655	if( typeof xaxislabel !== 'undefined' ){\
		5656	ctx.save();\
		5657	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		5658	var corr = ctx.measureText(xaxislabel).width;\
		5659	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		5660	ctx.restore();\
		5661	};\
		5662	if( typeof yaxislabel !== 'undefined' ){\
		5663	ctx.save();\
		5664	ctx.font = \"italic \"+font_size+\"px Ariel\";\
7988	schaersvoo	5665	var corr = ctx.measureText(yaxislabel).width;\
7614	schaersvoo	5666	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		5667	ctx.rotate(-0.5*Math.PI);\
		5668	ctx.fillText(yaxislabel,0,0);\
		5669	ctx.restore();\
		5670	};\
		5671	ctx.stroke();\
		5672	ctx.closePath();\
		5673	if( use_axis == 1 ){\
7988	schaersvoo	5674	ctx.save();\
7614	schaersvoo	5675	ctx.beginPath();\
		5676	ctx.strokeStyle = stroke_color;\
		5677	ctx.lineWidth = 0.6*line_width;\
		5678	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5679	ctx.moveTo(p,0);\
		5680	ctx.lineTo(p,ysize);\
		5681	};\
		5682	for(var p = zero_x ; p > 0; p = p - x2step){\
		5683	ctx.moveTo(p,0);\
		5684	ctx.lineTo(p,ysize);\
		5685	};\
		5686	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5687	ctx.moveTo(0,p);\
		5688	ctx.lineTo(xsize,p);\
		5689	};\
		5690	for(var p = zero_y ; p > 0; p = p - y2step){\
		5691	ctx.moveTo(0,p);\
		5692	ctx.lineTo(xsize,p);\
		5693	};\
		5694	ctx.stroke();\
		5695	ctx.closePath();\
		5696	ctx.beginPath();\
		5697	ctx.lineWidth = 2*line_width;\
		5698	ctx.strokeStyle = axis_color;\
		5699	ctx.moveTo(0,zero_y);\
		5700	ctx.lineTo(xsize,zero_y);\
		5701	ctx.moveTo(zero_x,0);\
		5702	ctx.lineTo(zero_x,ysize);\
		5703	ctx.stroke();\
		5704	ctx.closePath();\
		5705	ctx.lineWidth = line_width+0.5;\
		5706	ctx.beginPath();\
		5707	for(var p = zero_x ; p < xsize; p = p + xstep){\
		5708	ctx.moveTo(p,zero_y-tics_length);\
		5709	ctx.lineTo(p,zero_y+tics_length);\
		5710	};\
		5711	for(var p = zero_x ; p > 0; p = p - xstep){\
		5712	ctx.moveTo(p,zero_y-tics_length);\
		5713	ctx.lineTo(p,zero_y+tics_length);\
		5714	};\
		5715	for(var p = zero_y ; p < ysize; p = p + ystep){\
		5716	ctx.moveTo(zero_x-tics_length,p);\
		5717	ctx.lineTo(zero_x+tics_length,p);\
		5718	};\
		5719	for(var p = zero_y ; p > 0; p = p - ystep){\
		5720	ctx.moveTo(zero_x-tics_length,p);\
		5721	ctx.lineTo(zero_x+tics_length,p);\
		5722	};\
		5723	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5724	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5725	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5726	};\
		5727	for(var p = zero_x ; p > 0; p = p - x2step){\
		5728	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5729	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5730	};\
		5731	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5732	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5733	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5734	};\
		5735	for(var p = zero_y ; p > 0; p = p - y2step){\
		5736	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5737	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5738	};\
		5739	ctx.stroke();\
		5740	ctx.closePath();\
7988	schaersvoo	5741	ctx.restore();\
		5742	};\
		5743	if( use_axis_numbering == 1 ){\
		5744	ctx.save();\
		5745	ctx.fillColor = axis_color;\
8110	schaersvoo	5746	ctx.strokeStyle = axis_color;\
		5747	ctx.lineWidth = 2*line_width;\
7988	schaersvoo	5748	ctx.font = font_family;\
		5749	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		5750	if( x_strings != null ){\
		5751	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	5752	ctx.beginPath();\
7988	schaersvoo	5753	for(var p = 0 ; p < len ; p = p+2){\
		5754	var x_nums = x2px(eval(x_strings[p]));\
		5755	var x_text = x_strings[p+1];\
		5756	corr = ctx.measureText(x_text).width;\
		5757	skip = 1.2*corr/xstep;\
		5758	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		5759	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		5760	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
8110	schaersvoo	5761	ctx.moveTo(x_nums,zero_y - tics_length);\
		5762	ctx.lineTo(x_nums,zero_y + tics_length);\
7988	schaersvoo	5763	};\
8110	schaersvoo	5764	ctx.closePath();\
7988	schaersvoo	5765	}\
		5766	else\
		5767	{\
		5768	skip = 1;cnt = px2x(zero_x);\
		5769	prec = Math.log(precision)/(Math.log(10));\
		5770	var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
		5771	for( var p = zero_x ; p < xsize ; p = p+xstep){\
		5772	if(skip == 0 ){\
7990	schaersvoo	5773	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5774	corr = ctx.measureText(disp_cnt).width;\
		5775	skip = parseInt(1.2*corr/xstep);\
		5776	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
7614	schaersvoo	5777	}\
7988	schaersvoo	5778	else\
		5779	{\
		5780	skip--;\
7614	schaersvoo	5781	};\
7988	schaersvoo	5782	cnt = cnt + xmajor;\
7614	schaersvoo	5783	};\
7988	schaersvoo	5784	cnt = px2x(zero_x);skip = 1;\
		5785	for( var p = zero_x ; p > 0 ; p = p-xstep){\
		5786	if(skip == 0 ){\
7990	schaersvoo	5787	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5788	corr = ctx.measureText(disp_cnt).width;\
		5789	skip = parseInt(1.2*corr/xstep);\
		5790	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
		5791	}\
		5792	else\
		5793	{\
		5794	skip--;\
7614	schaersvoo	5795	};\
7988	schaersvoo	5796	cnt = cnt - xmajor;\
7614	schaersvoo	5797	};\
		5798	};\
7988	schaersvoo	5799	if( y_strings != null ){\
		5800	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	5801	ctx.beginPath();\
7988	schaersvoo	5802	for(var p = 0 ; p < len ; p = p+2){\
		5803	var y_nums = y2px(eval(y_strings[p]));\
		5804	var y_text = y_strings[p+1];\
		5805	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		5806	if( corr > zero_x){corr = parseInt(zero_x+2); }\
8110	schaersvoo	5807	ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
		5808	ctx.moveTo(zero_x - tics_length,y_nums);\
		5809	ctx.lineTo(zero_x + tics_length,y_nums);\
7614	schaersvoo	5810	};\
8110	schaersvoo	5811	ctx.closePath();\
7988	schaersvoo	5812	}\
		5813	else\
		5814	{\
7991	schaersvoo	5815	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	5816	cnt = px2y(zero_y);skip = 1;\
		5817	for( var p = zero_y ; p < ysize ; p = p+ystep){\
		5818	if(skip == 0 ){\
		5819	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	5820	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5821	if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		5822	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		5823	}\
		5824	else\
		5825	{\
		5826	skip--;\
		5827	};\
		5828	cnt = cnt - ymajor;\
7614	schaersvoo	5829	};\
7988	schaersvoo	5830	corr = 0;cnt = px2y(zero_y);skip = 1;\
7991	schaersvoo	5831	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	5832	for( var p = zero_y ; p > 0 ; p = p-ystep){\
		5833	if(skip == 0 ){\
		5834	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	5835	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	5836	if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		5837	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		5838	}\
		5839	else\
		5840	{\
		5841	skip--;\
		5842	};\
		5843	cnt = cnt + ymajor;\
7614	schaersvoo	5844	};\
		5845	};\
7988	schaersvoo	5846	ctx.stroke();\
7614	schaersvoo	5847	ctx.restore();\
		5848	};\
7956	schaersvoo	5849	if( typeof legend0 !== 'undefined' ){\
7988	schaersvoo	5850	ctx.save();\
7614	schaersvoo	5851	ctx.globalAlpha = 1.0;\
		5852	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		5853	var y_offset = 2*font_size;\
		5854	var txt;var txt_size;\
		5855	var x_offset = xsize - 2*font_size;\
7956	schaersvoo	5856	var l_length = legend0.length;\
		5857	if( typeof legendcolors0 !== 'undefined' ){\
7614	schaersvoo	5858	for(var p = 0 ; p < l_length ; p++){\
7956	schaersvoo	5859	barcolor[p] = legendcolors0[p];\
7614	schaersvoo	5860	};\
7988	schaersvoo	5861	}\
		5862	else\
		5863	{\
7614	schaersvoo	5864	if( barcolor.length == 0 ){\
		5865	for(var p = 0 ; p < l_length ; p++){\
		5866	barcolor[p] = stroke_color;\
		5867	};\
		5868	};\
		5869	};\
		5870	for(var p = 0; p < l_length; p++){\
		5871	ctx.fillStyle = barcolor[p];\
7956	schaersvoo	5872	txt = legend0[p];\
7614	schaersvoo	5873	txt_size = ctx.measureText(txt).width;\
7956	schaersvoo	5874	ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
7614	schaersvoo	5875	y_offset = parseInt(y_offset + 1.5*font_size);\
		5876	};\
7988	schaersvoo	5877	ctx.restore();\
7614	schaersvoo	5878	};\
7991	schaersvoo	5879	if( typeof barchart_0 !== 'undefined' ){\
		5880	ctx.save();\
		5881	var num_barcharts = 0;\
		5882	var bar_name = eval('barchart_0');\
		5883	while( typeof bar_name !== 'undefined' ){\
		5884	try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
		5885	};\
		5886	var bar_width = parseInt(0.8*xstep/(num_barcharts));\
		5887	for(var i=0 ; i< num_barcharts ; i++){\
		5888	bar_name = eval('barchart_'+i);\
		5889	var bar_x = new Array();\
		5890	var bar_y = new Array();\
		5891	var lb = bar_name.length;\
		5892	var idx = 0;\
		5893	var dx = parseInt(0.5ibar_width);\
		5894	for( var p = 0 ; p < lb ; p = p + 3 ){\
		5895	bar_x[idx] = x2px(bar_name[p]);\
		5896	bar_y[idx] = y2px(bar_name[p+1]);\
		5897	barcolor[idx] = bar_name[p+2];\
		5898	idx++;\
		5899	};\
		5900	ctx.globalAlpha = fill_opacity;\
		5901	ctx.beginPath();\
		5902	for( var p = 0; p < idx ; p++ ){\
		5903	ctx.strokeStyle = barcolor[p];\
		5904	ctx.fillStyle = barcolor[p];\
		5905	ctx.rect(bar_x[p]-0.4*xstep+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
		5906	};\
		5907	ctx.fill();\
		5908	ctx.stroke();\
		5909	ctx.closePath();\
		5910	};\
		5911	ctx.restore();\
		5912	};\
7996	schaersvoo	5913	if( typeof linegraph_0 !== 'undefined' ){\
		5914	ctx.save();\
		5915	ctx.globalAlpha = 1.0;\
		5916	var i = 0;\
		5917	var line_name = eval('linegraph_'+i);\
		5918	while ( typeof line_name !== 'undefined' ){\
		5919	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		5920	ctx.lineWidth = parseInt(line_name[1]);\
		5921	if(line_name[2] == \"1\"){\
		5922	var d1 = parseInt(line_name[3]);\
		5923	var d2 = parseInt(line_name[4]);\
		5924	if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
		5925	}\
		5926	else\
		5927	{\
		5928	if(ctx.setLineDash){ctx.setLineDash = null;}\
		5929	if(ctx.mozDash){ctx.mozDash = null;}\
		5930	};\
		5931	var data_x = new Array();\
		5932	var data_y = new Array();\
		5933	var lb = line_name.length;\
		5934	var idx = 0;\
		5935	for( var p = 5 ; p < lb ; p = p + 2 ){\
		5936	data_x[idx] = x2px(line_name[p]);\
		5937	data_y[idx] = y2px(line_name[p+1]);\
		5938	idx++;\
		5939	};\
		5940	for( var p = 0; p < idx ; p++){\
		5941	ctx.beginPath();\
		5942	ctx.moveTo(data_x[p],data_y[p]);\
		5943	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		5944	ctx.stroke();\
		5945	ctx.closePath();\
		5946	};\
		5947	i++;\
		5948	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		5949	};\
		5950	ctx.restore();\
		5951	};\
7614	schaersvoo	5952	return;\
7989	schaersvoo	5953	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5954	break;
8224	bpr	5955
7614	schaersvoo	5956	case DRAW_PIECHART:
7987	schaersvoo	5957	fprintf(js_include_file,"\n<!-- draw piecharts -->\n\
7956	schaersvoo	5958	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family){\
7614	schaersvoo	5959	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5960	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5961	}\
		5962	else\
		5963	{\
		5964	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5965	};\
		5966	var ld = data_color_list.length;\
		5967	var sum = 0;\
		5968	var idx = 0;\
7956	schaersvoo	5969	var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
7614	schaersvoo	5970	var colors = new Array();\
		5971	var data = new Array();\
		5972	for(var p = 0;p < ld; p = p + 2){\
		5973	data[idx] = parseFloat(data_color_list[p]);\
		5974	sum = sum + data[idx];\
		5975	colors[idx] = data_color_list[p+1];\
		5976	idx++;\
		5977	};\
		5978	var ctx = obj.getContext(\"2d\");\
		5979	ctx.save();\
		5980	var angle;\
		5981	var angle_end = 0;\
		5982	var offset = Math.PI / 2;\
		5983	ctx.globalAlpha = fill_opacity;\
		5984	for(var p=0; p < idx; p++){\
		5985	ctx.beginPath();\
		5986	ctx.fillStyle = colors[p];\
		5987	ctx.moveTo(x_center,y_center);\
		5988	angle = Math.PI * (2 * data[p] / sum);\
		5989	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		5990	ctx.lineTo(x_center, y_center);\
		5991	ctx.fill();\
		5992	ctx.closePath();\
		5993	angle_end = angle_end + angle;\
		5994	};\
7956	schaersvoo	5995	if(typeof legend0 !== 'undefined'){\
		5996	var legenda = eval(\"legend\"+legend_cnt);\
7614	schaersvoo	5997	ctx.globalAlpha = 1.0;\
7956	schaersvoo	5998	ctx.font = font_family;\
7614	schaersvoo	5999	var y_offset = font_size; \
		6000	var x_offset = 0;\
		6001	var txt;var txt_size;\
		6002	for(var p = 0; p < idx; p++){\
		6003	ctx.fillStyle = colors[p];\
7956	schaersvoo	6004	txt = legenda[p];\
7614	schaersvoo	6005	txt_size = ctx.measureText(txt).width;\
		6006	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
7956	schaersvoo	6007	ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
7614	schaersvoo	6008	y_offset = parseInt(y_offset + 1.5*font_size);\
		6009	};\
		6010	};\
		6011	ctx.restore();\
7956	schaersvoo	6012	};",canvas_root_id,canvas_root_id,canvas_root_id);
8224	bpr	6013
7614	schaersvoo	6014	break;
		6015	case DRAW_ARCS:
		6016	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
8105	schaersvoo	6017	var draw_arc = function(ctx,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6018	ctx.save();\
		6019	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
8071	schaersvoo	6020	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	6021	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		6022	if(end < start){var tmp = end;end = start;start=tmp;};\
8071	schaersvoo	6023	start = 360 - start;\
		6024	end = 360 - end;\
7614	schaersvoo	6025	ctx.lineWidth = line_width;\
		6026	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
8071	schaersvoo	6027	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		6028	ctx.beginPath();\
		6029	ctx.moveTo(xc,yc);\
		6030	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		6031	ctx.lineTo(xc,yc);\
		6032	ctx.closePath();\
7614	schaersvoo	6033	if( use_filled == 1 ){\
		6034	ctx.fill();\
8071	schaersvoo	6035	};\
		6036	ctx.stroke();\
7614	schaersvoo	6037	ctx.restore();\
8071	schaersvoo	6038	};");
8224	bpr	6039
7614	schaersvoo	6040	break;
7983	schaersvoo	6041	case DRAW_CENTERSTRING:
		6042	fprintf(js_include_file,"\n<!-- draw centerstring -->\n\
8105	schaersvoo	6043	var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
7983	schaersvoo	6044	var obj;\
		6045	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6046	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6047	}\
		6048	else\
		6049	{\
		6050	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6051	};\
		6052	var ctx = obj.getContext(\"2d\");\
		6053	ctx.save();\
		6054	ctx.font = font_family;\
		6055	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6056	var stringwidth = ctx.measureText(text).width;\
		6057	var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
		6058	ctx.fillText(text,x,y2px(y));\
		6059	return;\
		6060	};",canvas_root_id,canvas_root_id,canvas_root_id);
		6061	break;
7614	schaersvoo	6062	case DRAW_TEXTS:
		6063	fprintf(js_include_file,"\n<!-- draw text -->\n\
8105	schaersvoo	6064	var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6065	var obj;\
		6066	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6067	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6068	}\
		6069	else\
		6070	{\
		6071	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6072	};\
		6073	var ctx = obj.getContext(\"2d\");\
		6074	if(angle2 == 0 && angle != 0){\
		6075	ctx.save();\
8071	schaersvoo	6076	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6077	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6078	};\
		6079	if( font_family.indexOf('px') != null ){\
		6080	ctx.font = font_family;\
		6081	}\
		6082	else\
		6083	{\
7956	schaersvoo	6084	ctx.font = font_family;\
7614	schaersvoo	6085	};\
		6086	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6087	if(angle2 != 0){\
		6088	ctx.save();\
		6089	ctx.translate(x,y);\
		6090	ctx.rotate((360-angle2)*(Math.PI / 180));\
		6091	ctx.fillText(text,0,0);\
		6092	ctx.restore();\
		6093	}else{ctx.fillText(text,x,y);};\
		6094	ctx.restore();\
		6095	return;\
7653	schaersvoo	6096	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6097	break;
		6098	case DRAW_CURVE:
		6099	fprintf(js_include_file,"\n<!-- draw curve -->\n\
8105	schaersvoo	6100	var draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6101	var obj;\
		6102	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6103	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6104	}\
		6105	else\
		6106	{\
		6107	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6108	};\
		6109	var ctx = obj.getContext(\"2d\");\
		6110	ctx.save();\
8071	schaersvoo	6111	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6112	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6113	ctx.beginPath();ctx.lineWidth = line_width;\
		6114	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		6115	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6116	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		6117	for(var p = 1 ; p < x_points.length ; p++){\
		6118	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		6119	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		6120	}\
		6121	else\
		6122	{\
		6123	ctx.stroke();\
		6124	ctx.beginPath();\
		6125	p++;\
		6126	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		6127	};\
		6128	};\
		6129	ctx.stroke();\
		6130	ctx.restore();\
7653	schaersvoo	6131	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6132	break;
8224	bpr	6133
7614	schaersvoo	6134	case DRAW_INPUTS:
		6135	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
8105	schaersvoo	6136	var draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
7614	schaersvoo	6137	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		6138	var input = document.createElement(\"input\");\
		6139	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		6140	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		6141	input.setAttribute(\"size\",size);\
		6142	input.setAttribute(\"value\",value);\
7877	schaersvoo	6143	if( readonly == 0 \|\| wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
7653	schaersvoo	6144	canvas_div.appendChild(input);};");
7614	schaersvoo	6145	break;
8224	bpr	6146
7614	schaersvoo	6147	case DRAW_TEXTAREAS:
		6148	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
8105	schaersvoo	6149	var draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
7614	schaersvoo	6150	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		6151	var textarea = document.createElement(\"textarea\");\
		6152	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		6153	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		6154	textarea.setAttribute(\"cols\",cols);\
		6155	textarea.setAttribute(\"rows\",rows);\
7877	schaersvoo	6156	textarea.value = value;\
		6157	if( readonly == 0 \|\| wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
7653	schaersvoo	6158	canvas_div.appendChild(textarea);};");
7614	schaersvoo	6159	break;
8224	bpr	6160
7614	schaersvoo	6161	case DRAW_PIXELS:
		6162	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
8105	schaersvoo	6163	var draw_setpixel = function(x,y,color,opacity,pixelsize){\
7614	schaersvoo	6164	var canvas = create_canvas%d(10,xsize,ysize);\
		6165	var d = 0.5*pixelsize;\
		6166	var ctx = canvas.getContext(\"2d\");\
		6167	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		6168	ctx.clearRect(0,0,xsize,ysize);\
		6169	for(var p=0; p<x.length;p++){\
		6170	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		6171	};\
		6172	ctx.fill();ctx.stroke();\
		6173	};",canvas_root_id);
		6174	break;
		6175
		6176	case DRAW_CLOCK:
		6177	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		6178	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		6179	var clock_ctx = clock_canvas.getContext(\"2d\");\
		6180	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
8130	schaersvoo	6181	clock_ctx.clearRect(xc - radius,yc - radius,2radius,2radius);\
7614	schaersvoo	6182	clock_ctx.save();\
7997	schaersvoo	6183	clock_ctx.globalAlpha = clock_bg_opacity;\
7614	schaersvoo	6184	this.type = type \|\| 0;\
		6185	this.interaction = interaction \|\| 0;\
7862	schaersvoo	6186	this.H = H;\
		6187	this.M = M;\
		6188	this.S = S;\
8000	schaersvoo	6189	if(this.S == -1){this.S = 59;this.M = this.M - 1;};\
		6190	if(this.M == -1){this.M = 59;this.H = this.H - 1;};\
		6191	if(this.H == -1){this.H = 11;};\
7614	schaersvoo	6192	this.xc = xc \|\| xsize/2;\
		6193	this.yc = yc \|\| ysize/2;\
		6194	this.radius = radius \|\| xsize/4;\
		6195	var font_size = parseInt(0.2*this.radius);\
		6196	this.H_color = h_color \|\| \"blue\";\
		6197	this.M_color = m_color \|\| \"blue\";\
		6198	this.S_color = s_color \|\| \"blue\";\
		6199	this.fg_color = fg_color \|\| \"red\";\
		6200	this.bg_color = bg_color \|\| \"white\";\
		6201	clock_ctx.translate(this.xc,this.yc);\
		6202	clock_ctx.beginPath();\
		6203	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		6204	clock_ctx.fillStyle = this.bg_color;\
		6205	clock_ctx.fill();\
		6206	clock_ctx.closePath();\
		6207	clock_ctx.beginPath();\
		6208	clock_ctx.font = font_size+\"px Arial\";\
		6209	clock_ctx.fillStyle = this.fg_color;\
		6210	clock_ctx.textAlign = \"center\";\
		6211	clock_ctx.textBaseline = 'middle';\
		6212	var angle;var x1,y1,x2,y2;\
		6213	var angle_cos;var angle_sin;\
7997	schaersvoo	6214	clock_ctx.globalAlpha = clock_fg_opacity;\
7614	schaersvoo	6215	switch(type){\
		6216	case 0:clock_ctx.beginPath();\
		6217	for(var p = 1; p <= 12 ; p++){\
		6218	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		6219	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		6220	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6221	clock_ctx.moveTo(x1,y1);\
		6222	clock_ctx.lineTo(x2,y2);\
		6223	};\
		6224	for(var p = 1; p <= 60 ; p++){\
		6225	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		6226	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		6227	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6228	clock_ctx.moveTo(x1,y1);\
		6229	clock_ctx.lineTo(x2,y2);\
		6230	};\
		6231	clock_ctx.closePath();\
		6232	clock_ctx.stroke();\
		6233	break;\
		6234	case 1:\
		6235	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.9this.radiusMath.cos(angle);y1 = 0.9this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};break;\
7862	schaersvoo	6236	case 2:\
		6237	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.8this.radiusMath.cos(angle);y1 = 0.8this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};\
7614	schaersvoo	6238	clock_ctx.beginPath();\
		6239	for(var p = 1; p <= 12 ; p++){\
		6240	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		6241	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		6242	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6243	clock_ctx.moveTo(x1,y1);\
		6244	clock_ctx.lineTo(x2,y2);\
		6245	};\
		6246	for(var p = 1; p <= 60 ; p++){\
		6247	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		6248	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		6249	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		6250	clock_ctx.moveTo(x1,y1);\
		6251	clock_ctx.lineTo(x2,y2);\
		6252	};\
		6253	clock_ctx.closePath();\
		6254	clock_ctx.stroke();\
		6255	break;\
		6256	};\
		6257	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		6258	clock_ctx.rotate(angle);\
		6259	clock_ctx.beginPath();\
		6260	clock_ctx.moveTo(-3, -2);\
		6261	clock_ctx.lineTo(-3, 2);\
		6262	clock_ctx.lineTo(this.radius * 0.7, 1);\
		6263	clock_ctx.lineTo(this.radius * 0.7, -1);\
		6264	clock_ctx.fillStyle = this.H_color;\
		6265	clock_ctx.fill();\
		6266	clock_ctx.rotate(-angle);\
		6267	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		6268	clock_ctx.rotate(angle);\
		6269	clock_ctx.beginPath();\
		6270	clock_ctx.moveTo(-3, -2);\
		6271	clock_ctx.lineTo(-3, 2);\
		6272	clock_ctx.lineTo(this.radius * 0.8, 1);\
		6273	clock_ctx.lineTo(this.radius * 0.8, -1);\
		6274	clock_ctx.fillStyle = this.M_color;\
		6275	clock_ctx.fill();\
		6276	clock_ctx.rotate(-angle);\
		6277	angle = (this.S - 15) * 2 * Math.PI / 60;\
		6278	clock_ctx.rotate(angle);\
		6279	clock_ctx.beginPath();\
		6280	clock_ctx.moveTo(0,0);\
		6281	clock_ctx.lineTo(this.radius * 0.95, 0);\
		6282	clock_ctx.lineTo(this.radius * 0.9, -1);\
		6283	clock_ctx.strokeStyle = this.S_color;\
		6284	clock_ctx.stroke();\
		6285	clock_ctx.restore();\
7653	schaersvoo	6286	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	6287	break;
		6288
		6289	case DRAW_LATTICE:
		6290	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
8105	schaersvoo	6291	var draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	6292	var obj;\
		6293	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6294	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6295	}\
		6296	else\
		6297	{\
		6298	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6299	};\
		6300	var ctx = obj.getContext(\"2d\");\
		6301	ctx.save();\
8071	schaersvoo	6302	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	6303	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		6304	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6305	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		6306	var radius = line_width;\
		6307	var x = 0;\
		6308	var y = 0;\
		6309	var x_step_px = xsize/(xmax-xmin);\
		6310	var y_step_px = ysize/(ymax-ymin);\
		6311	var xv1 = dx1*x_step_px;\
		6312	var yv1 = dy1*y_step_px;\
		6313	var xv2 = dx2*x_step_px;\
		6314	var yv2 = dy2*y_step_px;\
		6315	for(var p = 0; p < n1 ;p++){\
		6316	x = p*xv1 + x0;\
		6317	y = p*yv1 + y0;\
		6318	for(var c = 0; c < n2 ; c++){\
		6319	ctx.beginPath();\
		6320	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		6321	ctx.fill();\
		6322	ctx.stroke();\
		6323	ctx.closePath();\
		6324	};\
		6325	};\
		6326	ctx.restore();\
		6327	return;\
7653	schaersvoo	6328	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6329	break;
7735	schaersvoo	6330	case DRAW_XYLOGSCALE:
		6331	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
8105	schaersvoo	6332	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,precision){\
7956	schaersvoo	6333	var obj;\
		6334	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6335	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6336	}\
		6337	else\
		6338	{\
		6339	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6340	};\
		6341	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	6342	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6343	ctx.save();\
7739	schaersvoo	6344	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
7956	schaersvoo	6345	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		6346	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		6347	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		6348	var y_max = Math.log(ymax)/Math.log(ylogbase);\
7739	schaersvoo	6349	if(use_axis_numbering == 1){\
7956	schaersvoo	6350	ctx.font = font_family;\
		6351	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
		6352	ymarge = parseInt(1.5*font_size);\
		6353	ctx.save();\
		6354	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6355	ctx.rect(0,0,xmarge,ysize);\
		6356	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6357	ctx.fill();\
		6358	ctx.restore();\
		6359	}else{xmarge = 0;ymarge = 0;};\
7735	schaersvoo	6360	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6361	ctx.save();\
		6362	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6363	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6364	corr = ctx.measureText(xaxislabel).width;\
		6365	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6366	ctx.restore();\
		6367	};\
7735	schaersvoo	6368	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6369	ctx.save();\
		6370	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6371	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6372	corr = ctx.measureText(yaxislabel).width;\
		6373	ctx.translate(xmarge+font_size,corr+font_size);\
		6374	ctx.rotate(-0.5*Math.PI);\
		6375	ctx.fillText(yaxislabel,0,0);\
		6376	ctx.restore();\
		6377	};\
		6378	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6379	ctx.lineWidth = line_width;\
		6380	for(var p = x_min; p <= x_max ; p++){\
		6381	num = Math.pow(xlogbase,p);\
		6382	for(var i = 1 ; i < xlogbase ; i++){\
		6383	x_e = x2px(i*num);\
7735	schaersvoo	6384	if( i == 1 ){\
7956	schaersvoo	6385	ctx.lineWidth = line_width;\
		6386	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7738	schaersvoo	6387	if( use_axis_numbering == 1 && p > x_min){\
7956	schaersvoo	6388	xtxt = xlogbase+'^'+p.toFixed(0);\
		6389	corr = 0.5*(ctx.measureText(xtxt).width);\
		6390	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		6391	};\
7735	schaersvoo	6392	}else{\
7956	schaersvoo	6393	ctx.lineWidth = 0.2*line_width;\
		6394	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6395	};\
7738	schaersvoo	6396	if( x_e >= xmarge ){\
7956	schaersvoo	6397	ctx.beginPath();\
		6398	ctx.moveTo(x_e,0);\
		6399	ctx.lineTo(x_e,ysize - ymarge);\
		6400	ctx.stroke();\
		6401	ctx.closePath();\
7738	schaersvoo	6402	};\
7956	schaersvoo	6403	};\
		6404	};\
		6405	for(var p = y_min; p <= y_max ; p++){\
		6406	num = Math.pow(ylogbase,p);\
		6407	for(var i = 1 ; i < ylogbase ; i++){\
		6408	y_e = y2px(i*num);\
		6409	if( i == 1 ){\
		6410	ctx.lineWidth = line_width;\
7735	schaersvoo	6411	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6412	if( use_axis_numbering == 1 && p > y_min){\
		6413	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
		6414	};\
		6415	}else{\
		6416	ctx.lineWidth = 0.2*line_width;\
		6417	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6418	};\
		6419	ctx.beginPath();\
		6420	ctx.moveTo(xmarge,y_e);\
		6421	ctx.lineTo(xsize,y_e);\
		6422	ctx.stroke();\
		6423	ctx.closePath();\
		6424	};\
		6425	};\
7735	schaersvoo	6426	ctx.restore();\
		6427	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		6428	break;
7614	schaersvoo	6429
7735	schaersvoo	6430	case DRAW_XLOGSCALE:
		6431	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
8105	schaersvoo	6432	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,ymajor,yminor,precision){\
7956	schaersvoo	6433	var obj;\
		6434	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6435	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6436	}\
		6437	else\
		6438	{\
		6439	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6440	};\
		6441	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	6442	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6443	ctx.save();\
		6444	ctx.lineWidth = line_width;\
7739	schaersvoo	6445	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	6446	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		6447	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		6448	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	6449	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		6450	if(use_axis_numbering == 1){\
7956	schaersvoo	6451	ctx.font = font_family;\
		6452	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
		6453	ymarge = parseInt(1.5*font_size);\
		6454	ctx.save();\
		6455	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6456	ctx.rect(0,0,xmarge,ysize);\
		6457	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6458	ctx.fill();\
		6459	ctx.restore();\
		6460	}else{xmarge = 0;ymarge = 0;};\
7739	schaersvoo	6461	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6462	ctx.save();\
		6463	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6464	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6465	corr = ctx.measureText(xaxislabel).width;\
		6466	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6467	ctx.restore();\
		6468	};\
7739	schaersvoo	6469	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6470	ctx.save();\
		6471	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6472	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6473	corr = ctx.measureText(yaxislabel).width;\
		6474	ctx.translate(xmarge+font_size,corr+font_size);\
		6475	ctx.rotate(-0.5*Math.PI);\
		6476	ctx.fillText(yaxislabel,0,0);\
		6477	ctx.restore();\
		6478	};\
		6479	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6480	ctx.lineWidth = line_width;\
		6481	for(var p = x_min; p <= x_max ; p++){\
		6482	num = Math.pow(xlogbase,p);\
		6483	for(var i = 1 ; i < xlogbase ; i++){\
		6484	x_e = x2px(i*num);\
7735	schaersvoo	6485	if( i == 1 ){\
7956	schaersvoo	6486	ctx.lineWidth = line_width;\
7739	schaersvoo	6487	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		6488	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	6489	xtxt = xlogbase+'^'+p.toFixed(0);\
		6490	corr = 0.5*(ctx.measureText(xtxt).width);\
		6491	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		6492	};\
		6493	}else{\
7956	schaersvoo	6494	ctx.lineWidth = 0.2*line_width;\
7735	schaersvoo	6495	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6496	};\
7739	schaersvoo	6497	if( x_e >= xmarge ){\
7956	schaersvoo	6498	ctx.beginPath();\
		6499	ctx.moveTo(x_e,0);\
		6500	ctx.lineTo(x_e,ysize - ymarge);\
		6501	ctx.stroke();\
		6502	ctx.closePath();\
7739	schaersvoo	6503	};\
		6504	};\
7956	schaersvoo	6505	};\
7735	schaersvoo	6506	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		6507	var minor_step = stepy / yminor;\
7749	schaersvoo	6508	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	6509	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6510	ctx.lineWidth = line_width;\
		6511	ctx.beginPath();\
		6512	ctx.moveTo(xmarge,y);\
		6513	ctx.lineTo(xsize,y);\
		6514	ctx.stroke();\
		6515	ctx.closePath();\
7735	schaersvoo	6516	if( use_axis_numbering == 1){\
		6517	ytxt = (px2y(y)).toFixed(prec);\
		6518	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		6519	};\
		6520	for(var dy = 1 ; dy < yminor ; dy++){\
		6521	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	6522	ctx.lineWidth = 0.2*line_width;\
		6523	ctx.beginPath();\
7739	schaersvoo	6524	ctx.moveTo(xmarge,y+dy*minor_step);\
7956	schaersvoo	6525	ctx.lineTo(xsize,y+dy*minor_step);\
		6526	ctx.stroke();\
		6527	ctx.closePath();\
7735	schaersvoo	6528	};\
		6529	};\
7956	schaersvoo	6530	ctx.restore();\
		6531	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7735	schaersvoo	6532	break;
7729	schaersvoo	6533	case DRAW_YLOGSCALE:
		6534	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
8105	schaersvoo	6535	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,xmajor,xminor,precision){\
7956	schaersvoo	6536	var obj;\
		6537	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		6538	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		6539	}\
		6540	else\
		6541	{\
		6542	obj = create_canvas%d(canvas_type,xsize,ysize);\
		6543	};\
		6544	var ctx = obj.getContext(\"2d\");\
7729	schaersvoo	6545	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	6546	ctx.save();\
		6547	ctx.lineWidth = line_width;\
7735	schaersvoo	6548	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		6549	var y_max = Math.log(ymax)/Math.log(ylogbase);\
8109	schaersvoo	6550	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
7739	schaersvoo	6551	if(use_axis_numbering == 1){\
7956	schaersvoo	6552	ctx.font = font_family;\
		6553	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
		6554	ymarge = 2*font_size;\
		6555	ctx.save();\
		6556	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		6557	ctx.rect(0,0,xmarge,ysize);\
		6558	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		6559	ctx.fill();\
		6560	ctx.restore();\
		6561	}else{xmarge = 0;ymarge = 0;};\
7739	schaersvoo	6562	if( typeof xaxislabel !== 'undefined' ){\
7956	schaersvoo	6563	ctx.save();\
		6564	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6565	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6566	corr = ctx.measureText(xaxislabel).width;\
		6567	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		6568	ctx.restore();\
		6569	};\
7739	schaersvoo	6570	if( typeof yaxislabel !== 'undefined' ){\
7956	schaersvoo	6571	ctx.save();\
		6572	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		6573	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6574	corr = ctx.measureText(yaxislabel).width;\
		6575	ctx.translate(xmarge+font_size,corr+font_size);\
		6576	ctx.rotate(-0.5*Math.PI);\
		6577	ctx.fillText(yaxislabel,0,0);\
		6578	ctx.restore();\
		6579	};\
		6580	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		6581	ctx.lineWidth = line_width;\
		6582	for(var p = y_min; p <= y_max ; p++){\
		6583	num = Math.pow(ylogbase,p);\
		6584	for(var i = 1 ; i < ylogbase ; i++){\
		6585	y_e = y2px(i*num);\
7729	schaersvoo	6586	if( i == 1 ){\
7956	schaersvoo	6587	ctx.lineWidth = line_width;\
7729	schaersvoo	6588	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	6589	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	6590	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	6591	};\
		6592	}else{\
7956	schaersvoo	6593	ctx.lineWidth = 0.2*line_width;\
7729	schaersvoo	6594	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		6595	};\
7956	schaersvoo	6596	ctx.beginPath();\
		6597	ctx.moveTo(xmarge,y_e);\
		6598	ctx.lineTo(xsize,y_e);\
		6599	ctx.stroke();\
		6600	ctx.closePath();\
		6601	};\
		6602	};\
7729	schaersvoo	6603	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		6604	var minor_step = stepx / xminor;\
		6605	var prec = Math.log(precision)/Math.log(10);\
		6606	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	6607	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	6608	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	6609	ctx.lineWidth = line_width;\
		6610	ctx.beginPath();\
		6611	ctx.moveTo(x,ysize-ymarge);\
		6612	ctx.lineTo(x,0);\
		6613	ctx.stroke();\
		6614	ctx.closePath();\
7729	schaersvoo	6615	if( use_axis_numbering == 1){\
		6616	xtxt = (px2x(x)).toFixed(prec);\
		6617	corr = 0.5*(ctx.measureText(xtxt).width);\
		6618	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		6619	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		6620	};\
		6621	for(var dx = 1 ; dx < xminor ; dx++){\
		6622	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	6623	ctx.lineWidth = 0.2*line_width;\
		6624	ctx.beginPath();\
7739	schaersvoo	6625	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7956	schaersvoo	6626	ctx.lineTo(x+dx*minor_step,0);\
		6627	ctx.stroke();\
		6628	ctx.closePath();\
7735	schaersvoo	6629	};\
		6630	};\
7956	schaersvoo	6631	ctx.restore();\
		6632	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7729	schaersvoo	6633	break;
7614	schaersvoo	6634	default:break;
		6635	}
		6636	}
		6637	}
		6638	return;
		6639	}
		6640
		6641	void check_string_length(int L){
		6642	if(L<1 \|\| L > MAX_BUFFER-1){
		6643	canvas_error("problem with your arguments to command...");
		6644	}
		6645	return;
		6646	}
		6647
		6648
		6649	int get_token(FILE *infile){
		6650	int c,i=0;
		6651	char temp[MAX_INT], *input_type;
		6652	char *line="line",
		6653	*audio="audio",
		6654	*blink="blink",
		6655	*arrowhead="arrowhead",
		6656	*crosshairsize="crosshairsize",
		6657	*crosshair="crosshair",
		6658	*crosshairs="crosshairs",
		6659	*audioobject="audioobject",
		6660	*style="style",
		6661	*mouse="mouse",
7991	schaersvoo	6662	*mousex="mousex",
		6663	*mousey="mousey",
8071	schaersvoo	6664	*mouse_display="display",
		6665	*mouse_degree="mouse_degree",
7614	schaersvoo	6666	*userdraw="userdraw",
		6667	*highlight="highlight",
		6668	*http="http",
		6669	*rays="rays",
		6670	*dashtype="dashtype",
		6671	*dashed="dashed",
		6672	*filled="filled",
		6673	*lattice="lattice",
		6674	*parallel="parallel",
		6675	*segment="segment",
		6676	*dsegment="dsegment",
		6677	*seg="seg",
		6678	*bgimage="bgimage",
		6679	*bgcolor="bgcolor",
		6680	*strokecolor="strokecolor",
		6681	*backgroundimage="backgroundimage",
		6682	*text="text",
		6683	*textup="textup",
		6684	*mouseprecision="mouseprecision",
		6685	*precision="precision",
		6686	*plotsteps="plotsteps",
		6687	*plotstep="plotstep",
		6688	*tsteps="tsteps",
		6689	*curve="curve",
		6690	*dcurve="dcurve",
		6691	*plot="plot",
		6692	*dplot="dplot",
7788	schaersvoo	6693	*levelcurve="levelcurve",
7614	schaersvoo	6694	*fontsize="fontsize",
		6695	*fontcolor="fontcolor",
		6696	*axis="axis",
		6697	*axisnumbering="axisnumbering",
		6698	*axisnumbers="axisnumbers",
		6699	*arrow="arrow",
		6700	*darrow="darrow",
		6701	*arrow2="arrow2",
		6702	*darrow2="darrow2",
		6703	*zoom="zoom",
		6704	*grid="grid",
		6705	*hline="hline",
7786	schaersvoo	6706	*dhline="dhline",
7614	schaersvoo	6707	*drag="drag",
		6708	*horizontalline="horizontalline",
		6709	*vline="vline",
7786	schaersvoo	6710	*dvline="dvline",
7614	schaersvoo	6711	*verticalline="verticalline",
		6712	*triangle="triangle",
		6713	*ftriangle="ftriangle",
		6714	*mathml="mathml",
		6715	*html="html",
		6716	*input="input",
8146	schaersvoo	6717	*clearbutton="clearbutton",
7614	schaersvoo	6718	*inputstyle="inputstyle",
		6719	*textarea="textarea",
		6720	*trange="trange",
		6721	*ranget="ranget",
		6722	*xrange="xrange",
		6723	*yrange="yrange",
		6724	*rangex="rangex",
		6725	*rangey="rangey",
		6726	*polyline="polyline",
		6727	*lines="lines",
		6728	*poly="poly",
		6729	*polygon="polygon",
		6730	*fpolygon="fpolygon",
		6731	*fpoly="fpoly",
		6732	*filledpoly="filledpoly",
		6733	*filledpolygon="filledpolygon",
		6734	*rect="rect",
		6735	*frect="frect",
		6736	*rectangle="rectangle",
		6737	*frectangle="frectangle",
		6738	*square="square",
		6739	*fsquare="fsquare",
		6740	*dline="dline",
		6741	*arc="arc",
		6742	*filledarc="filledarc",
		6743	*size="size",
		6744	*string="string",
		6745	*stringup="stringup",
		6746	*copy="copy",
		6747	*copyresized="copyresized",
		6748	*opacity="opacity",
		6749	*transparent="transparent",
		6750	*fill="fill",
		6751	*point="point",
		6752	*points="points",
		6753	*linewidth="linewidth",
		6754	*circle="circle",
		6755	*fcircle="fcircle",
		6756	*disk="disk",
		6757	*comment="#",
		6758	*end="end",
		6759	*ellipse="ellipse",
		6760	*fellipse="fellipse",
		6761	*rotate="rotate",
7785	schaersvoo	6762	*affine="affine",
		6763	*killaffine="killaffine",
7614	schaersvoo	6764	*fontfamily="fontfamily",
		6765	*fillcolor="fillcolor",
		6766	*clicktile="clicktile",
		6767	*clicktile_colors="clicktile_colors",
		6768	*translation="translation",
		6769	*translate="translate",
		6770	*killtranslation="killtranslation",
		6771	*killtranslate="killtranslate",
		6772	*onclick="onclick",
		6773	*roundrect="roundrect",
		6774	*froundrect="froundrect",
		6775	*roundrectangle="roundrectangle",
		6776	*patternfill="patternfill",
		6777	*hatchfill="hatchfill",
		6778	*diafill="diafill",
7647	schaersvoo	6779	*diamondfill="diamondfill",
7614	schaersvoo	6780	*dotfill="dotfill",
		6781	*gridfill="gridfill",
		6782	*imagefill="imagefill",
7735	schaersvoo	6783	*xlogbase="xlogbase",
		6784	*ylogbase="ylogbase",
7614	schaersvoo	6785	*xlogscale="xlogscale",
		6786	*ylogscale="ylogscale",
		6787	*xylogscale="xylogscale",
		6788	*intooltip="intooltip",
		6789	*replyformat="replyformat",
		6790	*floodfill="floodfill",
		6791	*filltoborder="filltoborder",
		6792	*clickfill="clickfill",
		6793	*setpixel="setpixel",
		6794	*pixels="pixels",
		6795	*pixelsize="pixelsize",
		6796	*clickfillmarge="clickfillmarge",
		6797	*xaxis="xaxis",
		6798	*yaxis="yaxis",
		6799	*xaxistext="xaxistext",
		6800	*yaxistext="yaxistext",
		6801	*piechart="piechart",
		6802	*legend="legend",
		6803	*legendcolors="legendcolors",
		6804	*xlabel="xlabel",
		6805	*ylabel="ylabel",
		6806	*barchart="barchart",
		6807	*linegraph="linegraph",
		6808	*clock="clock",
		6809	*animate="animate",
		6810	*video="video",
		6811	*status="status",
7877	schaersvoo	6812	*nostatus="nostatus",
7652	schaersvoo	6813	*snaptogrid="snaptogrid",
7784	schaersvoo	6814	*xsnaptogrid="xsnaptogrid",
		6815	*ysnaptogrid="ysnaptogrid",
7654	schaersvoo	6816	*userinput_xy="userinput_xy",
8193	schaersvoo	6817	*userinput_function="userinput_function",
7663	schaersvoo	6818	*usertextarea_xy="usertextarea_xy",
8222	schaersvoo	6819	*userinput="userinput",
7823	schaersvoo	6820	*jsmath="jsmath",
7858	schaersvoo	6821	*trace_jscurve="trace_jscurve",
7838	schaersvoo	6822	*setlimits="setlimits",
7858	schaersvoo	6823	*jscurve="jscurve",
		6824	*jsplot="jsplot",
7983	schaersvoo	6825	*sgraph="sgraph",
7984	schaersvoo	6826	*title="title",
7996	schaersvoo	6827	*centerstring="centerstring",
		6828	*xunit="xunit",
8071	schaersvoo	6829	*yunit="yunit",
8101	schaersvoo	6830	*slider="slider",
8105	schaersvoo	6831	*killslider="killslider",
8244	schaersvoo	6832	*angle="angle",
		6833	*halfline="halfline",
		6834	*demiline="demiline";
7614	schaersvoo	6835
		6836	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
		6837	if( i == 0 && (c == ' ' \|\| c == '\t') ){
		6838	continue; /* white spaces or tabs allowed before first command identifier */
		6839	}
		6840	else
		6841	{
		6842	if( c == ' ' \|\| c == '\t' ){
		6843	break;
		6844	}
		6845	else
		6846	{
		6847	temp[i] = c;
		6848	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		6849	i++;
		6850	}
		6851	}
		6852	if(temp[0] == '#') break;
		6853	}
		6854	if (c == EOF) finished = 1;
		6855
		6856	if (c == '\n' \|\| c == '\r') {
		6857	line_number++;
		6858	if (i == 0) { return EMPTY; }
		6859	} else if (c == EOF) {
		6860	return 0;
		6861	}
		6862
		6863	temp[i]='\0';
		6864	input_type=(char*)my_newmem(strlen(temp));
		6865	snprintf(input_type,sizeof(temp),"%s",temp);
		6866
		6867	if( strcmp(input_type, size) == 0 ){
		6868	free(input_type);
		6869	return SIZE;
		6870	}
		6871	if( strcmp(input_type, xrange) == 0 ){
		6872	free(input_type);
		6873	return XRANGE;
		6874	}
		6875	if( strcmp(input_type, rangex) == 0 ){
		6876	free(input_type);
		6877	return XRANGE;
		6878	}
		6879	if( strcmp(input_type, trange) == 0 ){
		6880	free(input_type);
		6881	return TRANGE;
		6882	}
		6883	if( strcmp(input_type, ranget) == 0 ){
		6884	free(input_type);
		6885	return TRANGE;
		6886	}
		6887	if( strcmp(input_type, yrange) == 0 ){
		6888	free(input_type);
		6889	return YRANGE;
		6890	}
		6891	if( strcmp(input_type, rangey) == 0 ){
		6892	free(input_type);
		6893	return YRANGE;
		6894	}
		6895	if( strcmp(input_type, linewidth) == 0 ){
		6896	free(input_type);
		6897	return LINEWIDTH;
		6898	}
		6899	if( strcmp(input_type, dashed) == 0 ){
		6900	free(input_type);
		6901	return DASHED;
		6902	}
		6903	if( strcmp(input_type, dashtype) == 0 ){
		6904	free(input_type);
		6905	return DASHTYPE;
		6906	}
		6907	if( strcmp(input_type, axisnumbering) == 0 ){
		6908	free(input_type);
		6909	return AXIS_NUMBERING;
		6910	}
		6911	if( strcmp(input_type, axisnumbers) == 0 ){
		6912	free(input_type);
		6913	return AXIS_NUMBERING;
		6914	}
		6915	if( strcmp(input_type, axis) == 0 ){
		6916	free(input_type);
		6917	return AXIS;
		6918	}
		6919	if( strcmp(input_type, grid) == 0 ){
		6920	free(input_type);
		6921	return GRID;
		6922	}
		6923	if( strcmp(input_type, parallel) == 0 ){
		6924	free(input_type);
		6925	return PARALLEL;
		6926	}
		6927	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
		6928	free(input_type);
		6929	return HLINE;
		6930	}
		6931	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		6932	free(input_type);
		6933	return VLINE;
		6934	}
		6935	if( strcmp(input_type, line) == 0 ){
		6936	free(input_type);
		6937	return LINE;
		6938	}
		6939	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		6940	free(input_type);
		6941	return SEGMENT;
		6942	}
		6943	if( strcmp(input_type, dsegment) == 0 ){
		6944	free(input_type);
		6945	use_dashed = TRUE;
		6946	return SEGMENT;
		6947	}
		6948	if( strcmp(input_type, crosshairsize) == 0 ){
		6949	free(input_type);
		6950	return CROSSHAIRSIZE;
		6951	}
		6952	if( strcmp(input_type, arrowhead) == 0 ){
		6953	free(input_type);
		6954	return ARROWHEAD;
		6955	}
		6956	if( strcmp(input_type, crosshairs) == 0 ){
		6957	free(input_type);
		6958	return CROSSHAIRS;
		6959	}
		6960	if( strcmp(input_type, crosshair) == 0 ){
		6961	free(input_type);
		6962	return CROSSHAIR;
		6963	}
		6964	if( strcmp(input_type, onclick) == 0 ){
		6965	free(input_type);
		6966	return ONCLICK;
		6967	}
		6968	if( strcmp(input_type, drag) == 0 ){
		6969	free(input_type);
		6970	return DRAG;
		6971	}
		6972	if( strcmp(input_type, userdraw) == 0 ){
		6973	free(input_type);
		6974	return USERDRAW;
		6975	}
		6976	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		6977	free(input_type);
		6978	return STYLE;
		6979	}
		6980	if( strcmp(input_type, fillcolor) == 0 ){
		6981	free(input_type);
		6982	return FILLCOLOR;
		6983	}
		6984	if( strcmp(input_type, strokecolor) == 0 ){
		6985	free(input_type);
		6986	return STROKECOLOR;
		6987	}
		6988	if( strcmp(input_type, filled) == 0 ){
		6989	free(input_type);
		6990	return FILLED;
		6991	}
		6992	if( strcmp(input_type, http) == 0 ){
		6993	free(input_type);
		6994	return HTTP;
		6995	}
		6996	if( strcmp(input_type, rays) == 0 ){
		6997	free(input_type);
		6998	return RAYS;
		6999	}
		7000	if( strcmp(input_type, lattice) == 0 ){
		7001	free(input_type);
		7002	return LATTICE;
		7003	}
		7004	if( strcmp(input_type, bgimage) == 0 ){
		7005	free(input_type);
		7006	return BGIMAGE;
		7007	}
		7008	if( strcmp(input_type, bgcolor) == 0 ){
		7009	free(input_type);
		7010	return BGCOLOR;
		7011	}
		7012	if( strcmp(input_type, backgroundimage) == 0 ){
		7013	free(input_type);
		7014	return BGIMAGE;
		7015	}
		7016	if( strcmp(input_type, text) == 0 ){
		7017	free(input_type);
		7018	return FLY_TEXT;
		7019	}
		7020	if( strcmp(input_type, textup) == 0 ){
		7021	free(input_type);
		7022	return FLY_TEXTUP;
		7023	}
		7024	if( strcmp(input_type, mouse) == 0 ){
		7025	free(input_type);
		7026	return MOUSE;
		7027	}
7991	schaersvoo	7028	if( strcmp(input_type, mousex) == 0 ){
		7029	free(input_type);
		7030	return MOUSEX;
		7031	}
		7032	if( strcmp(input_type, mousey) == 0 ){
		7033	free(input_type);
		7034	return MOUSEY;
		7035	}
8071	schaersvoo	7036	if( strcmp(input_type, mouse_degree) == 0 ){
		7037	free(input_type);
		7038	return MOUSE_DEGREE;
		7039	}
		7040	if( strcmp(input_type, mouse_display) == 0 ){
		7041	free(input_type);
		7042	return MOUSE_DISPLAY;
		7043	}
7614	schaersvoo	7044	if( strcmp(input_type, mouseprecision) == 0 ){
		7045	free(input_type);
		7046	return MOUSE_PRECISION;
		7047	}
		7048	if( strcmp(input_type, precision) == 0 ){
		7049	free(input_type);
		7050	return MOUSE_PRECISION;
		7051	}
		7052	if( strcmp(input_type, curve) == 0 ){
		7053	free(input_type);
		7054	return CURVE;
		7055	}
		7056	if( strcmp(input_type, dcurve) == 0 ){
7788	schaersvoo	7057	use_dashed = TRUE;
7614	schaersvoo	7058	free(input_type);
		7059	return CURVE;
		7060	}
		7061	if( strcmp(input_type, plot) == 0 ){
		7062	free(input_type);
		7063	return CURVE;
		7064	}
		7065	if( strcmp(input_type, dplot) == 0 ){
7788	schaersvoo	7066	use_dashed = TRUE;
7614	schaersvoo	7067	free(input_type);
		7068	return CURVE;
		7069	}
7788	schaersvoo	7070	if( strcmp(input_type, levelcurve) == 0 ){
		7071	free(input_type);
		7072	return LEVELCURVE;
		7073	}
7614	schaersvoo	7074	if( strcmp(input_type, plotsteps) == 0 ){
		7075	free(input_type);
		7076	return PLOTSTEPS;
		7077	}
		7078	if( strcmp(input_type, plotstep) == 0 ){
		7079	free(input_type);
		7080	return PLOTSTEPS;
		7081	}
		7082	if( strcmp(input_type, tsteps) == 0 ){
		7083	free(input_type);
		7084	return PLOTSTEPS;
		7085	}
		7086	if( strcmp(input_type, fontsize) == 0 ){
		7087	free(input_type);
		7088	return FONTSIZE;
		7089	}
		7090	if( strcmp(input_type, fontcolor) == 0 ){
		7091	free(input_type);
		7092	return FONTCOLOR;
		7093	}
		7094	if( strcmp(input_type, arrow) == 0 ){
		7095	free(input_type);
		7096	return ARROW;
		7097	}
		7098	if( strcmp(input_type, arrow2) == 0 ){
		7099	free(input_type);
		7100	return ARROW2;
		7101	}
		7102	if( strcmp(input_type, darrow) == 0 ){
		7103	free(input_type);
8071	schaersvoo	7104	use_dashed = TRUE;
7614	schaersvoo	7105	return ARROW;
		7106	}
		7107	if( strcmp(input_type, darrow2) == 0 ){
		7108	free(input_type);
		7109	use_dashed = TRUE;
		7110	return ARROW2;
		7111	}
		7112	if( strcmp(input_type, zoom) == 0 ){
		7113	free(input_type);
		7114	return ZOOM;
		7115	}
		7116	if( strcmp(input_type, triangle) == 0 ){
		7117	free(input_type);
		7118	return TRIANGLE;
		7119	}
		7120	if( strcmp(input_type, ftriangle) == 0 ){
		7121	free(input_type);
		7122	use_filled = TRUE;
		7123	return TRIANGLE;
		7124	}
		7125	if( strcmp(input_type, input) == 0 ){
		7126	free(input_type);
		7127	return INPUT;
		7128	}
		7129	if( strcmp(input_type, inputstyle) == 0 ){
		7130	free(input_type);
		7131	return INPUTSTYLE;
		7132	}
		7133	if( strcmp(input_type, textarea) == 0 ){
		7134	free(input_type);
		7135	return TEXTAREA;
		7136	}
		7137	if( strcmp(input_type, mathml) == 0 ){
		7138	free(input_type);
		7139	return MATHML;
		7140	}
		7141	if( strcmp(input_type, html) == 0 ){
		7142	free(input_type);
		7143	return MATHML;
		7144	}
		7145	if( strcmp(input_type, fontfamily) == 0 ){
		7146	free(input_type);
		7147	return FONTFAMILY;
		7148	}
		7149	if( strcmp(input_type, lines) == 0 \|\| strcmp(input_type, polyline) == 0 ){
		7150	free(input_type);
		7151	return POLYLINE;
		7152	}
		7153	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		7154	free(input_type);
		7155	return RECT;
		7156	}
		7157	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		7158	free(input_type);
		7159	return ROUNDRECT;
		7160	}
		7161	if( strcmp(input_type, froundrect) == 0 ){
		7162	free(input_type);
		7163	use_filled = TRUE;
		7164	return ROUNDRECT;
		7165	}
		7166	if( strcmp(input_type, square) == 0 ){
		7167	free(input_type);
		7168	return SQUARE;
		7169	}
		7170	if( strcmp(input_type, fsquare) == 0 ){
		7171	free(input_type);
		7172	use_filled = TRUE;
		7173	return SQUARE;
		7174	}
		7175	if( strcmp(input_type, dline) == 0 ){
		7176	use_dashed = TRUE;
		7177	free(input_type);
		7178	return LINE;
		7179	}
7786	schaersvoo	7180	if( strcmp(input_type, dvline) == 0 ){
		7181	use_dashed = TRUE;
		7182	free(input_type);
		7183	return VLINE;
		7184	}
		7185	if( strcmp(input_type, dhline) == 0 ){
		7186	use_dashed = TRUE;
		7187	free(input_type);
		7188	return HLINE;
		7189	}
7614	schaersvoo	7190	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		7191	use_filled = TRUE;
		7192	free(input_type);
		7193	return RECT;
		7194	}
		7195	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		7196	use_filled = TRUE;
		7197	free(input_type);
		7198	return CIRCLE;
		7199	}
		7200	if( strcmp(input_type, circle) == 0 ){
		7201	free(input_type);
		7202	return CIRCLE;
		7203	}
		7204	if( strcmp(input_type, point) == 0 ){
		7205	free(input_type);
		7206	return POINT;
		7207	}
		7208	if( strcmp(input_type, points) == 0 ){
		7209	free(input_type);
		7210	return POINTS;
		7211	}
		7212	if( strcmp(input_type, filledarc) == 0 ){
		7213	use_filled = TRUE;
		7214	free(input_type);
		7215	return ARC;
		7216	}
		7217	if( strcmp(input_type, arc) == 0 ){
		7218	free(input_type);
		7219	return ARC;
		7220	}
		7221	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		7222	free(input_type);
		7223	return POLY;
		7224	}
		7225	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		7226	use_filled = TRUE;
		7227	free(input_type);
		7228	return POLY;
		7229	}
		7230	if( strcmp(input_type, ellipse) == 0){
		7231	free(input_type);
		7232	return ELLIPSE;
		7233	}
		7234	if( strcmp(input_type, fill) == 0 ){
		7235	free(input_type);
		7236	return FLOODFILL;
		7237	}
		7238	if( strcmp(input_type, string) == 0 ){
		7239	free(input_type);
		7240	return STRING;
		7241	}
		7242	if( strcmp(input_type, stringup) == 0 ){
		7243	free(input_type);
		7244	return STRINGUP;
		7245	}
		7246	if( strcmp(input_type, opacity) == 0 ){
		7247	free(input_type);
		7248	return OPACITY;
		7249	}
		7250	if( strcmp(input_type, comment) == 0){
		7251	free(input_type);
		7252	return COMMENT;
		7253	}
		7254	if( strcmp(input_type, end) == 0){
		7255	free(input_type);
		7256	return END;
		7257	}
		7258	if( strcmp(input_type, fellipse) == 0){
		7259	free(input_type);
		7260	use_filled = TRUE;
		7261	return ELLIPSE;
8224	bpr	7262	}
7614	schaersvoo	7263	if( strcmp(input_type, blink) == 0 ){
		7264	free(input_type);
		7265	return BLINK;
		7266	}
8146	schaersvoo	7267	if( strcmp(input_type, clearbutton) == 0){
7614	schaersvoo	7268	free(input_type);
8146	schaersvoo	7269	return CLEARBUTTON;
7614	schaersvoo	7270	}
		7271	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		7272	free(input_type);
		7273	return TRANSLATION;
		7274	}
		7275	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		7276	free(input_type);
		7277	return KILLTRANSLATION;
		7278	}
		7279	if( strcmp(input_type, rotate) == 0){
		7280	free(input_type);
		7281	return ROTATE;
		7282	}
7785	schaersvoo	7283	if( strcmp(input_type, affine) == 0){
		7284	free(input_type);
		7285	return AFFINE;
		7286	}
		7287	if( strcmp(input_type, killaffine) == 0){
		7288	free(input_type);
		7289	return KILLAFFINE;
		7290	}
7614	schaersvoo	7291	if( strcmp(input_type, audio) == 0 ){
		7292	free(input_type);
		7293	return AUDIO;
		7294	}
		7295	if( strcmp(input_type, audioobject) == 0 ){
		7296	free(input_type);
		7297	return AUDIOOBJECT;
		7298	}
		7299	if( strcmp(input_type, slider) == 0 ){
		7300	free(input_type);
		7301	return SLIDER;
		7302	}
8101	schaersvoo	7303	if( strcmp(input_type, killslider) == 0 ){
		7304	free(input_type);
		7305	return KILLSLIDER;
		7306	}
7614	schaersvoo	7307	if( strcmp(input_type, copy) == 0 ){
		7308	free(input_type);
		7309	return COPY;
		7310	}
		7311	if( strcmp(input_type, copyresized) == 0 ){
		7312	free(input_type);
		7313	return COPYRESIZED;
		7314	}
		7315	if( strcmp(input_type, patternfill) == 0 ){
		7316	free(input_type);
		7317	return PATTERNFILL;
		7318	}
		7319	if( strcmp(input_type, hatchfill) == 0 ){
		7320	free(input_type);
		7321	return HATCHFILL;
		7322	}
7647	schaersvoo	7323	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
7614	schaersvoo	7324	free(input_type);
7647	schaersvoo	7325	return DIAMONDFILL;
7614	schaersvoo	7326	}
		7327	if( strcmp(input_type, dotfill) == 0 ){
		7328	free(input_type);
		7329	return DOTFILL;
		7330	}
		7331	if( strcmp(input_type, gridfill) == 0 ){
		7332	free(input_type);
		7333	return GRIDFILL;
		7334	}
		7335	if( strcmp(input_type, imagefill) == 0 ){
		7336	free(input_type);
		7337	return IMAGEFILL;
		7338	}
		7339	if( strcmp(input_type, clicktile_colors) == 0 ){
		7340	free(input_type);
		7341	return CLICKTILE_COLORS;
		7342	}
		7343	if( strcmp(input_type, clicktile) == 0 ){
		7344	free(input_type);
		7345	return CLICKTILE;
		7346	}
		7347	if( strcmp(input_type, xlogscale) == 0 ){
		7348	free(input_type);
		7349	return XLOGSCALE;
		7350	}
		7351	if( strcmp(input_type, ylogscale) == 0 ){
		7352	free(input_type);
		7353	return YLOGSCALE;
		7354	}
		7355	if( strcmp(input_type, xylogscale) == 0 ){
		7356	free(input_type);
		7357	return XYLOGSCALE;
		7358	}
		7359	if( strcmp(input_type, ylogscale) == 0 ){
		7360	free(input_type);
		7361	return YLOGSCALE;
		7362	}
7735	schaersvoo	7363	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	7364	free(input_type);
7735	schaersvoo	7365	return XLOGBASE;
7614	schaersvoo	7366	}
7735	schaersvoo	7367	if( strcmp(input_type, ylogbase) == 0 ){
		7368	free(input_type);
		7369	return YLOGBASE;
		7370	}
7614	schaersvoo	7371	if( strcmp(input_type, intooltip) == 0 ){
		7372	free(input_type);
		7373	return INTOOLTIP;
		7374	}
		7375	if( strcmp(input_type,video) == 0 ){
		7376	free(input_type);
		7377	return VIDEO;
		7378	}
		7379	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		7380	free(input_type);
		7381	return FLOODFILL;
8224	bpr	7382	}
7614	schaersvoo	7383	if( strcmp(input_type,filltoborder) == 0 ){
		7384	free(input_type);
		7385	return FILLTOBORDER;
8224	bpr	7386	}
7614	schaersvoo	7387	if( strcmp(input_type,clickfill) == 0 ){
		7388	free(input_type);
		7389	return CLICKFILL;
8224	bpr	7390	}
7614	schaersvoo	7391	if( strcmp(input_type, replyformat) == 0 ){
		7392	free(input_type);
		7393	return REPLYFORMAT;
		7394	}
		7395	if( strcmp(input_type, pixelsize) == 0 ){
		7396	free(input_type);
		7397	return PIXELSIZE;
		7398	}
		7399	if( strcmp(input_type, setpixel) == 0 ){
		7400	free(input_type);
		7401	return SETPIXEL;
		7402	}
		7403	if( strcmp(input_type, pixels) == 0 ){
		7404	free(input_type);
		7405	return PIXELS;
		7406	}
		7407	if( strcmp(input_type, clickfillmarge) == 0 ){
		7408	free(input_type);
		7409	return CLICKFILLMARGE;
		7410	}
		7411	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		7412	free(input_type);
		7413	return X_AXIS_STRINGS;
		7414	}
		7415	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		7416	free(input_type);
		7417	return Y_AXIS_STRINGS;
		7418	}
		7419	if( strcmp(input_type, piechart) == 0 ){
		7420	free(input_type);
		7421	return PIECHART;
		7422	}
		7423	if( strcmp(input_type, barchart) == 0 ){
		7424	free(input_type);
		7425	return BARCHART;
		7426	}
		7427	if( strcmp(input_type, linegraph) == 0 ){
		7428	free(input_type);
		7429	return LINEGRAPH;
		7430	}
		7431	if( strcmp(input_type, clock) == 0 ){
		7432	free(input_type);
		7433	return CLOCK;
		7434	}
		7435	if( strcmp(input_type, legend) == 0 ){
		7436	free(input_type);
		7437	return LEGEND;
		7438	}
		7439	if( strcmp(input_type, legendcolors) == 0 ){
		7440	free(input_type);
		7441	return LEGENDCOLORS;
		7442	}
		7443	if( strcmp(input_type, xlabel) == 0 ){
		7444	free(input_type);
		7445	return XLABEL;
		7446	}
		7447	if( strcmp(input_type, ylabel) == 0 ){
		7448	free(input_type);
		7449	return YLABEL;
		7450	}
		7451	if( strcmp(input_type, animate) == 0 ){
		7452	free(input_type);
		7453	return ANIMATE;
		7454	}
		7455	/* these are bitmap related flydraw commmands...must be removed. eventually */
		7456	if( strcmp(input_type, transparent) == 0 ){
		7457	free(input_type);
		7458	return TRANSPARENT;
		7459	}
7877	schaersvoo	7460	if( strcmp(input_type, status) == 0 \|\| strcmp(input_type, nostatus) == 0 ){
7614	schaersvoo	7461	free(input_type);
		7462	return STATUS;
		7463	}
		7464	if( strcmp(input_type, snaptogrid) == 0 ){
		7465	free(input_type);
		7466	return SNAPTOGRID;
		7467	}
7784	schaersvoo	7468	if( strcmp(input_type, xsnaptogrid) == 0 ){
		7469	free(input_type);
		7470	return XSNAPTOGRID;
		7471	}
		7472	if( strcmp(input_type, ysnaptogrid) == 0 ){
		7473	free(input_type);
		7474	return YSNAPTOGRID;
		7475	}
7652	schaersvoo	7476	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	7477	free(input_type);
7652	schaersvoo	7478	return USERINPUT_XY;
		7479	}
8193	schaersvoo	7480	if( strcmp(input_type, userinput_function) == 0 ){
		7481	free(input_type);
		7482	return USERINPUT_FUNCTION;
		7483	}
7663	schaersvoo	7484	if( strcmp(input_type, usertextarea_xy) == 0 ){
		7485	free(input_type);
		7486	return USERTEXTAREA_XY;
		7487	}
8222	schaersvoo	7488	if( strcmp(input_type, userinput) == 0 ){
		7489	free(input_type);
		7490	return USERINPUT;
		7491	}
7654	schaersvoo	7492	if( strcmp(input_type, sgraph) == 0 ){
7652	schaersvoo	7493	free(input_type);
7654	schaersvoo	7494	return SGRAPH;
		7495	}
7823	schaersvoo	7496	if( strcmp(input_type, jsmath) == 0 ){
7654	schaersvoo	7497	free(input_type);
7823	schaersvoo	7498	return JSMATH;
		7499	}
7858	schaersvoo	7500	if( strcmp(input_type, trace_jscurve) == 0 ){
7823	schaersvoo	7501	free(input_type);
7858	schaersvoo	7502	return TRACE_JSCURVE;
7823	schaersvoo	7503	}
7858	schaersvoo	7504	if( strcmp(input_type, jscurve) == 0 \|\| strcmp(input_type, jsplot) == 0 ){
		7505	free(input_type);
		7506	return JSCURVE;
		7507	}
7984	schaersvoo	7508	if( strcmp(input_type, centerstring) == 0 \|\| strcmp(input_type, title) == 0 ){
7983	schaersvoo	7509	free(input_type);
		7510	return CENTERSTRING;
		7511	}
7838	schaersvoo	7512	if( strcmp(input_type, setlimits) == 0 ){
7823	schaersvoo	7513	free(input_type);
7838	schaersvoo	7514	return SETLIMITS;
		7515	}
7996	schaersvoo	7516	if( strcmp(input_type, xunit) == 0 ){
7838	schaersvoo	7517	free(input_type);
7996	schaersvoo	7518	return XUNIT;
		7519	}
		7520	if( strcmp(input_type, yunit) == 0 ){
		7521	free(input_type);
		7522	return YUNIT;
		7523	}
8105	schaersvoo	7524	if( strcmp(input_type, angle) == 0 ){
7996	schaersvoo	7525	free(input_type);
8105	schaersvoo	7526	return ANGLE;
		7527	}
8244	schaersvoo	7528	if( strcmp(input_type, halfline) == 0 \|\| strcmp(input_type, demiline) == 0 ){
8105	schaersvoo	7529	free(input_type);
8244	schaersvoo	7530	return HALFLINE;
		7531	}
		7532	free(input_type);
7614	schaersvoo	7533	ungetc(c,infile);
		7534	return 0;
		7535	}
7856	schaersvoo	7536

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 8257