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

Rev	Author	Line No.	Line
7614	schaersvoo	1	/*
		2	27/7/2013 version 0.01
		3	"Inspired" by FLY program: http://martin.gleeson.com/fly
		4	*********************************************************************************
		5	* J.M. Evers 7/2013 *
		6	* This is all just amateur scriblings... So no copyrights. *
		7	* This source code file, and compiled objects derived from it, *
		8	* can be used and distributed without restriction, including for commercial use *
		9	* No warrenty whatsoever *
		10	*********************************************************************************
		11	*/
		12	#include <stdio.h>
		13	#include <stdlib.h>
		14	#include <errno.h>
		15	#include <string.h>
		16	#include <unistd.h>
		17	#include <time.h> /* use for random id's */
		18	#include <math.h>
		19	/*
		20	#include <ctype.h>
		21	11/2013
		22	removed: FreeBSD 9.0 / 9.1 C-lib bug...in chroot it will result in: Undefined symbol "_ThreadRuneLocale" implemented own versions of tolower() / toupper()
		23	Clang is fine (FreeBSD 10.0)
		24	*/
		25
		26	/*
		27	in case svgdraw is in ~/src/Misc/svgdraw
		28	#include "../svgdraw/include/matheval.h"
		29	*/
		30	#include "include/matheval.h"
		31	#include <assert.h>
		32	#include "canvasdraw.h"
7634	schaersvoo	33	#include<sys/stat.h>
7614	schaersvoo	34
		35	/* needed for gettimeofday */
		36	#include <sys/time.h>
		37	#include "canvasmacro.c"
		38	/******************************************************************************
		39	** Internal Functions
		40	******************************************************************************/
		41	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		42	void sync_input(FILE infile);/ proceed with inputfile */
		43	void canvas_error(char *msg);
		44	void add_javascript_functions(int js_functions[], int canvas_root_id);
		45	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		46	int get_token(FILE infile); / read next char until EOL*/
		47	int x2px(double x);
		48	int y2px(double y);
		49	double px2x(int x);
		50	double px2y(int y);
		51	double get_real(FILE infile,int last); / read a values; calculation and symbols allowed */
		52	char str_replace ( const char word, const char sub_word, const char rep_word );
		53	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
		54	char get_string(FILE infile,int last); /* get the string at theend of a command */
		55	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		56	char convert_hex2rgb(char hexcolor);
		57	void add_read_canvas(int reply_format);
		58	void make_js_include(int canvas_root_id);
		59	void check_string_length(int length);/* checks if the length of string argument of command is correct */
		60	FILE *js_include_file;
		61	FILE get_file(int line_number, char **filename);
		62	FILE infile; / will be stdin */
		63	/******************************************************************************
		64	** global
		65	******************************************************************************/
		66	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		67	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		68	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		69	int xsize = 320;
		70	int ysize = 320;
		71	double xmin = 0.0;
		72	double xmax = 320.0;
		73	double ymin = 0.0;
		74	double ymax = 320.0;
		75	double tmax = 2;
		76	double tmin = -2;
		77	/* flag to indicate parsing of line status */
		78	int done = FALSE;
		79	int type; /* eg command number */
		80	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
7785	schaersvoo	81	int use_affine = FALSE;
7614	schaersvoo	82	int use_rotate = FALSE;
		83	int use_translate = FALSE;
		84	int use_filled = FALSE;
		85	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
		86	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
		87
		88	/******************************************************************************
		89	** Main Program
		90	******************************************************************************/
		91	int main(int argc, char *argv[]){
		92	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
		93	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
		94	infile = stdin;/* read flyscript via stdin */
		95	int i,c;
		96	double double_data[MAX_INT+1];
		97	int int_data[MAX_INT+1];
		98	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		99	int use_parametric = FALSE;/* will be reset after parametric plotting */
		100	int use_axis = FALSE;
		101	int use_axis_numbering = FALSE;
7797	schaersvoo	102	int use_pan_and_zoom = FALSE;
7614	schaersvoo	103	int line_width = 1;
		104	int decimals = 2;
		105	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate */
		106	int use_userdraw = FALSE; /* flag to indicate user interaction: incompatible with "drag & drop" code !! */
		107	int drag_type = -1;/* 0,1,2 : xy,x,y */
		108	int use_tooltip = FALSE;
		109	char *tooltip_text = "Click here";
		110	char temp = ""; / */
		111	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		112	char *stroke_color = "255,0,0";
		113	char *fill_color = "0,255,0";
		114	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		115	char *font_color = "#00000";
		116	char *draw_type = "points";
		117	char *fly_font = "normal";
		118	char *input_style = "";
		119	char *flytext = "";
7785	schaersvoo	120	char *affine_matrix = "[1,0,0,1,0,0]";
7614	schaersvoo	121	int pixelsize = 1;
		122	int reply_format = 0;
		123	int input_cnt = 0;
		124	int ext_img_cnt = 0;
		125	int font_size = 12;
		126	int dashtype[2] = { 2 , 2 };
		127	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		128	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
		129	int arrow_head = 8; /* size in px*/
7833	schaersvoo	130	int crosshair_size = 5; /* size in px*/
7796	schaersvoo	131	int plot_steps = 250;
7614	schaersvoo	132	int found_size_command = 0;
		133	int click_cnt = 1;
		134	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		135	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
		136	int use_mouse_coordinates = FALSE;
		137	double angle = 0.0;
		138	int translate_x = 0;
		139	int translate_y = 0;
		140	int clickfillmarge = 20;
		141	int animation_type = 9; /* == object type curve in drag library */
7823	schaersvoo	142	int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
7614	schaersvoo	143	size_t string_length = 0;
		144	double stroke_opacity = 0.8;
		145	double fill_opacity = 0.8;
		146	char *URL = "http://localhost/images";
		147	memset(buffer,'\0',MAX_BUFFER);
		148	void *tmp_buffer = "";
		149
		150	/* default writing a unzipped js-include file into wims getfile directory */
		151	char *w_wims_session = getenv("w_wims_session");
		152	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){
		153	canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");
		154	}
		155	int L0=strlen(w_wims_session) + 21;
		156	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		157	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		158	mode_t process_mask = umask(0); /* check if file exists */
		159	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		160	if( result == 0 \|\| errno == EEXIST ){
		161	umask(process_mask); /* be sure to set correct permission */
		162	char *w_session = getenv("w_session");
		163	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
		164	char getfile_cmd = my_newmem(L1); / create memory to fit string precisely */
		165	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 */
		166	/* write the include tag to html page:<script type="text/javascript" src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
		167	/* now write file into getfile dir*/
		168	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		169	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		170	char location = my_newmem(L2); / create memory to fit string precisely */
		171	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		172	js_include_file = fopen(location,"w");/* open the file location for writing */
		173	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		174	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		175
		176	/* ----------------------------------------------------- */
		177	/* while more lines to process */
		178
		179	while(!finished){
		180	if(line_number>1 && found_size_command == FALSE){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
		181	type = get_token(infile);
		182	done = FALSE;
		183	/*
		184	@canvasdraw
		185	@will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image<br />by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job.<br />thus ensuring a minimal strain on the client browser <br />(unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
7749	schaersvoo	186	@General syntax <ul><li>The transparency of all objects can be controlled by command 'opacity [0-255],[0,255]'</il><li>a line based object can be controlled by command 'linewidth int'</li><li>a line based object may be dashed by using keyword 'dashed' before the object command.<br />the dashing type can be controled by command 'dashtype int,int'</li><li>a fillable object can be set fillable by starting the object command with an 'f'<br />(like frect,fcircle,ftriangle...)<br />or by using the keyword 'filled' before the object command.<br />The fill colour will be the stroke colour...(19/10/2013)<li> a draggable object can be set draggable by a preceding command 'drag x/y/xy'<br />The translation can be read by javascript:read_dragdrop();<br />Multiple objects may be set draggable / clickable (no limit)<br /> not all flydraw objects may be dragged / clicked<br />Only draggable / clickable objects will be scaled on zoom and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword 'onclick'<br />not all flydraw objects can be set clickable</li><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (in stead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.<br />example:<br />size 200,200;xrange -5,5;yrange -5,5;hline 0,0,black;vline 0,0,black<br />plot red,sin(x)<br />drag xy<br />html 0,0,5,-5, &euro; <br />lines green,2,0,2,-2,-2,2,-2,0;rectangle 1,1,4,4,purple;frectangle -1,-1,-4,-4,yellow</li></ul>
7614	schaersvoo	187	*/
		188	switch(type){
		189	case END:
		190	finished = 1;
		191	done = TRUE;
		192	break;
		193	case 0:
		194	sync_input(infile);
		195	break;
		196	case COMMENT:
		197	sync_input(infile);
		198	break;
		199	case EMPTY:
		200	sync_input(infile);
		201	break;
		202	case SIZE:
		203	/*
		204	@size width,height
		205	@set canvas size in pixels
		206	@mandatory first command
7647	schaersvoo	207	@if xrange and/or yrange is not given the range will be set to pixels :<br />xrange 0,xsize yrange 0,ysize<br />note: lower left corner is Origin (0:0)
7614	schaersvoo	208	*/
		209	found_size_command = TRUE;
		210	xsize = (int)(abs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		211	ysize = (int)(abs(round(get_real(infile,1))));
		212	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		213	xmin = 0;xmax = xsize;
7647	schaersvoo	214	ymin = 0;ymax = ysize;
7614	schaersvoo	215
		216	/*
		217	The sequence in which stuff is finally printed is important !!
		218	for example, when writing a 'include.js" the may not be a "script tag <script>" etc etc
		219	*/
		220	fprintf(stdout,"\n<script type=\"text/javascript\">var wims_status = \"$status\";</script>\n<!-- canvasdraw div and tooltip placeholder, if needed -->\n<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;\" ></div><div id=\"tooltip_placeholder_div%d\" style=\"display:block\"><span id=\"tooltip_placeholder%d\" style=\"display:none\"></span></div>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id);
		221	fprintf(js_include_file,"\n<!-- begin generated javascript include for canvasdraw -->\n");
		222	fprintf(stdout,"<!-- include actual object code via include file -->\n<script type=\"text/javascript\" src=\"%s\"></script>\n",getfile_cmd);
7729	schaersvoo	223	fprintf(js_include_file,"var wims_canvas_function%d = function(){\n<!-- common used stuff -->\n\
		224	var xsize = %d;\
		225	var ysize = %d;\
7797	schaersvoo	226	var precision = 100;\
7729	schaersvoo	227	var canvas_div = document.getElementById(\"canvas_div%d\");\
		228	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;};\
		229	function findPosX(i){ var obj = i;var curleft = 0;if(obj.offsetParent){while(1){curleft += obj.offsetLeft;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.x){curleft += obj.x;};};return curleft;};function findPosY(i){var obj = i;var curtop = 0;if(obj.offsetParent){while(1){curtop += obj.offsetTop;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.y){curtop += obj.y;};};return curtop;};\
7735	schaersvoo	230	function x2px(x){if(use_xlogscale == 0 ){return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_in = Math.log(x)/Math.log(xlogbase);return x_inxsize/(x_max - x_min) - xsizex_min/(x_max - x_min);};};\
		231	function px2x(px){if(use_xlogscale == 0 ){return (Math.round((px(xmax - xmin)/xsize + xmin)precision))/precision;}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_out = x_min +px*(x_max - x_min)/(xsize);return Math.pow(xlogbase,x_out);};};\
		232	function px2y(py){if(use_ylogscale == 0 ){return (Math.round((ymax -py(ymax - ymin)/ysize)precision))/precision;}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_out = y_max +py*(y_min - y_max)/(ysize);return Math.pow(ylogbase,y_out);};};\
		233	function y2px(y){if(use_ylogscale == 0){return -1yysize/(ymax - ymin) + ymaxysize/(ymax - ymin);}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_in = Math.log(y)/Math.log(ylogbase);return (y_max - y_in)ysize/(y_max - y_min);};};\
7729	schaersvoo	234	function scale_x_radius(rx){return parseInt(x2px(rx) - x2px(0));};\
		235	function scale_y_radius(ry){return parseInt(y2px(ry) - y2px(0));};\
		236	function distance(x1,y1,x2,y2){return parseInt(Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) ));};\
		237	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) ));};\
		238	function move(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = obj.x[p] + dx;obj.y[p] = obj.y[p] + dy;}return obj;};\
7735	schaersvoo	239	var xlogbase = 10;\
		240	var ylogbase = 10;\
7729	schaersvoo	241	var use_xlogscale = 0;\
		242	var use_ylogscale = 0;\
		243	var x_strings = null;\
		244	var y_strings = null;\
		245	var use_pan_and_zoom = 0;\
7784	schaersvoo	246	var x_use_snap_to_grid = 0;\
		247	var y_use_snap_to_grid = 0;\
7729	schaersvoo	248	var xstart = 0;\
		249	var ystart = 0",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	250	/* default add the drag code : nearly always used ...*/
		251	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		252	break;
		253	case XRANGE:
		254	/*
		255	@ xrange xmin,xmax
		256	@ if not given: 0,xsize (eg in pixels)
		257	*/
		258	for(i = 0 ; i<2; i++){
		259	switch(i){
		260	case 0: xmin = get_real(infile,0);break;
		261	case 1: xmax = get_real(infile,1);break;
		262	default: break;
		263	}
		264	}
		265	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		266	fprintf(js_include_file,"var xmin = %f;var xmax = %f;",xmin,xmax);
		267	break;
		268	case YRANGE:
		269	/*
		270	@ yrange ymin,ymax
		271	@ if not given 0,ysize (eg in pixels)
		272	*/
		273	for(i = 0 ; i<2; i++){
		274	switch(i){
		275	case 0: ymin = get_real(infile,0);break;
		276	case 1: ymax = get_real(infile,1);break;
		277	default: break;
		278	}
		279	}
		280	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		281	fprintf(js_include_file,"var ymin = %f;var ymax = %f;",ymin,ymax);
		282	break;
		283	case TRANGE:
		284	/*
		285	@ trange tmin,tmax
		286	@ default -2,2
		287	*/
		288	use_parametric = TRUE;
		289	for(i = 0 ; i<2; i++){
		290	switch(i){
		291	case 0: tmin = get_real(infile,0);break;
		292	case 1: tmax = get_real(infile,1);break;
		293	default: break;
		294	}
		295	}
		296	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
		297	break;
		298	case LINEWIDTH:
		299	/*
		300	@ linewidth int
		301	@ default 1
		302	*/
		303	line_width = (int) (get_real(infile,1));
		304	break;
		305	case ARROWHEAD:
		306	/*
		307	@ arrowhead int
		308	@ default 8 (pixels)
		309	*/
		310	arrow_head = (int) (get_real(infile,1));
		311	break;
		312	case CROSSHAIRSIZE:
		313	/*
		314	@ crosshairsize int
		315	@ default 10 (px)
		316	*/
		317	crosshair_size = (int) (get_real(infile,1));
		318	break;
		319	case CROSSHAIR:
		320	/*
		321	@ crosshair x,y,color
		322	@ draw a single crosshair point at (x;y) in color 'color'
		323	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		324	@ may be set draggable / onclick
		325	*/
		326	for(i=0;i<3;i++){
		327	switch(i){
		328	case 0: double_data[0] = get_real(infile,0);break; /* x */
		329	case 1: double_data[1] = get_real(infile,0);break; /* y */
		330	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		331	decimals = find_number_of_digits(precision);
7785	schaersvoo	332	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));\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);
7614	schaersvoo	333	click_cnt++;reset();
		334	break;
		335	default:break;
		336	}
		337	}
		338	break;
		339	case CROSSHAIRS:
		340	/*
		341	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		342	@ draw multiple crosshair points at given coordinates in color 'color'
		343	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		344	@ may be set draggable / onclick individually (!)
		345	*/
		346	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		347	fill_color = stroke_color;
		348	i=0;
		349	while( ! done ){ /* get next item until EOL*/
		350	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		351	if(i%2 == 0 ){
		352	double_data[i] = get_real(infile,0); /* x */
		353	}
		354	else
		355	{
		356	double_data[i] = get_real(infile,1); /* y */
		357	}
		358	i++;
		359	}
		360	decimals = find_number_of_digits(precision);
		361	for(c=0 ; c < i-1 ; c = c+2){
7785	schaersvoo	362	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));\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);
7614	schaersvoo	363	click_cnt++;
		364	}
		365	reset();
		366	break;
		367	case POINT:
		368	/*
		369	@ point x,y,color
		370	@ draw a single point at (x;y) in color 'color'
		371	@ use command 'linewidth int' to adust size
		372	@ may be set draggable / onclick
		373	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
		374	*/
		375	for(i=0;i<3;i++){
		376	switch(i){
		377	case 0: double_data[0] = get_real(infile,0);break; /* x */
		378	case 1: double_data[1] = get_real(infile,0);break; /* y */
		379	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		380	decimals = find_number_of_digits(precision);
7785	schaersvoo	381	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));\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);
7614	schaersvoo	382	click_cnt++;break;
		383	default: break;
		384	}
		385	}
		386	reset();
		387	break;
		388	case POINTS:
		389	/*
7634	schaersvoo	390	@ points color,x1,y1,x2,y2,...,x_n,y_n
7614	schaersvoo	391	@ draw multiple points at given coordinates in color 'color'
		392	@ use command 'linewidth int' to adust size
		393	@ may be set draggable / onclick individually (!)
		394	*/
		395	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		396	fill_color = stroke_color;
		397	i=0;
		398	while( ! done ){ /* get next item until EOL*/
		399	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		400	if(i%2 == 0 ){
		401	double_data[i] = get_real(infile,0); /* x */
		402	}
		403	else
		404	{
		405	double_data[i] = get_real(infile,1); /* y */
		406	}
		407	i++;
		408	}
		409	decimals = find_number_of_digits(precision);
		410	for(c = 0 ; c < i-1 ; c = c+2){
7785	schaersvoo	411	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));\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);
7614	schaersvoo	412	click_cnt++;
		413	}
		414	reset();
		415	break;
		416	case SEGMENT:
		417	/*
		418	@ segment x1,y1,x2,y2,color
		419	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		420	@ may be set draggable / onclick
		421	*/
		422	for(i=0;i<5;i++) {
		423	switch(i){
		424	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		425	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		426	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		427	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		428	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		429	decimals = find_number_of_digits(precision);
7785	schaersvoo	430	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));\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);
7614	schaersvoo	431	click_cnt++;reset();
		432	break;
		433	default: break;
		434	}
		435	}
		436	break;
		437	case LINE:
		438	/*
		439	@ line x1,y1,x2,y2,color
		440	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		441	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		442	@ may be set draggable / onclick
		443	*/
		444	for(i=0;i<5;i++){
		445	switch(i){
		446	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		447	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		448	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		449	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		450	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		451	if( double_data[10] == double_data[12] ){ /* vertical line*/
		452	double_data[1] = xmin;
		453	double_data[3] = ymax;
		454	double_data[0] = double_data[10];
		455	double_data[2] = double_data[10];
		456	}
		457	else
		458	{
		459	if( double_data[11] == double_data[13] ){ /* horizontal line */
		460	double_data[1] = double_data[11];
		461	double_data[3] = double_data[11];
		462	double_data[0] = ymin;
		463	double_data[2] = xmax;
		464	}
		465	else
		466	{
		467	/* m */
		468	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		469	/* q */
		470	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
		471
		472	/xmin,mxmin+q,xmax,mxmax+q/
		473
		474	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		475	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		476	double_data[0] = xmin;
		477	double_data[2] = xmax;
		478	}
		479	}
		480	decimals = find_number_of_digits(precision);
7785	schaersvoo	481	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));\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);
7614	schaersvoo	482	click_cnt++;reset();
		483	break;
		484	}
		485	}
		486	break;
		487	case HLINE:
		488	/*
		489	@ hline x,y,color
		490	@ draw a horizontal line through point (x:y) in color 'color'
		491	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
		492	@ may be set draggable / onclick
		493	*/
		494	for(i=0;i<3;i++) {
		495	switch(i){
		496	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		497	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		498	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		499	double_data[3] = double_data[1];
		500	decimals = find_number_of_digits(precision);
7785	schaersvoo	501	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));\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);
7614	schaersvoo	502	click_cnt++;reset();
		503	break;
		504	}
		505	}
		506	break;
		507	case VLINE:
		508	/*
		509	@ vline x,y,color
		510	@ draw a vertical line through point (x:y) in color 'color'
		511	@ may be set draggable / onclick
		512	*/
		513	for(i=0;i<3;i++) {
		514	switch(i){
		515	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		516	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		517	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		518	double_data[2] = double_data[0];
		519	decimals = find_number_of_digits(precision);
7785	schaersvoo	520	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));\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);
7614	schaersvoo	521	click_cnt++;reset();
		522	break;
		523	}
		524	}
		525	break;
		526	case SQUARE:
		527	/*
		528	@ square x,y,side,color
		529	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		530	@ use command 'fsquare x,y,side,color' for a filled square
		531	@ use command/keyword 'filled' before command 'square x,y,side,color'
		532	@ use command 'fillcolor color' before 'fsquare' to set the fill colour.
		533	@ may be set draggable / onclick
		534	*/
		535	for(i=0;i<5;i++){
		536	switch(i){
		537	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		538	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		539	case 2:double_data[2] = get_real(infile,0);
		540	double_data[3] = double_data[2];
		541	break; /* x-values */
		542	case 3:stroke_color = get_color(infile,1);/* name or hex color */
		543	decimals = find_number_of_digits(precision);
7785	schaersvoo	544	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,1,[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix);
7614	schaersvoo	545	click_cnt++;reset();
		546	break;
		547	}
		548	}
		549	break;
		550	case ROUNDRECT:
		551	/*
		552	@ roundrect x1,y1,x2,y2,radius,color
		553	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
		554	@ use command/keyword 'filled' before command 'roundrect x1,y1,x2,y2,radius,color'
		555	@ use command 'fillcolor color' before 'froundrect' to set the fill colour.
		556	@ may be set draggable / onclick
		557	*/
		558	for(i=0;i<6;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:double_data[2] = get_real(infile,0);break; /* x-values */
		563	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		564	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		565	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		566	decimals = find_number_of_digits(precision);
7785	schaersvoo	567	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));\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);
7614	schaersvoo	568	click_cnt++;reset();
		569	break;
		570	}
		571	}
		572	break;
		573	case RECT:
		574	/*
		575	@ rect x1,y1,x2,y2,color
		576	@ use command 'rect x1,y1,x2,y2,color' for a filled rectangle
		577	@ use command/keyword 'filled' before command 'rect x1,y1,x2,y2,color'
		578	@ use command 'fillcolor color' before 'frect' to set the fill colour.
		579	@ may be set draggable / onclick
		580	*/
		581	for(i=0;i<5;i++){
		582	switch(i){
		583	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		584	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		585	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		586	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		587	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		588	decimals = find_number_of_digits(precision);
7785	schaersvoo	589	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));\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);
7614	schaersvoo	590	click_cnt++;reset();
		591	break;
		592	}
		593	}
		594	break;
		595	case POLYLINE:
		596	/*
		597	@ polyline color,x1,y1,x2,y2...x_n,y_n
		598	@ may be set draggable / onclick
		599	*/
		600	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		601	i=0;
		602	c=0;
		603	while( ! done ){ /* get next item until EOL*/
		604	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		605	for( c = 0 ; c < 2; c++){
		606	if(c == 0 ){
		607	double_data[i] = get_real(infile,0);
		608	i++;
		609	}
		610	else
		611	{
		612	double_data[i] = get_real(infile,1);
		613	i++;
		614	}
		615	}
		616	}
		617	/* draw path : not closed & not filled */
		618	decimals = find_number_of_digits(precision);
7785	schaersvoo	619	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));\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);
7614	schaersvoo	620	click_cnt++;reset();
		621	break;
		622	case POLY:
		623	/*
		624	@ poly color,x1,y1,x2,y2...x_n,y_n
		625	@ draw closed polygon
		626	@ use command 'fpoly' to fill it, use command 'fillcolor color' to set the fill color
		627	@ may be set draggable / onclick
		628	*/
		629	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		630	i=0;
		631	c=0;
		632	while( ! done ){ /* get next item until EOL*/
		633	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		634	for( c = 0 ; c < 2; c++){
		635	if(c == 0 ){
		636	double_data[i] = get_real(infile,0);
		637	i++;
		638	}
		639	else
		640	{
		641	double_data[i] = get_real(infile,1);
		642	i++;
		643	}
		644	}
		645	}
		646	/* draw path : closed & optional filled */
		647	decimals = find_number_of_digits(precision);
7785	schaersvoo	648	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));\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);
7614	schaersvoo	649	click_cnt++;reset();
		650	break;
		651	case ARC:
		652	/*
		653	@ arc xc,yc,width,height,start_angle,end_angle,color
		654	@ can not be set "onclick" or "drag xy"
		655	@ attention: width == height == radius in pixels)
		656	*/
		657	for(i=0;i<7;i++){
		658	switch(i){
		659	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		660	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		661	case 2:int_data[0] = (int)(get_real(infile,0));break; /* width in pixels ! */
		662	case 3:int_data[1] = (int)(get_real(infile,0));break; /* height in pixels ! */
		663	case 4:double_data[2] = get_real(infile,0);break; /* start angle in degrees */
		664	case 5:double_data[3] = get_real(infile,0);break; /* end angle in degrees */
		665	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		666	/* in Shape library:
		667	x[0] = x[1] = xc
		668	y[0] = y[1] = yc
		669	w[0] = w[1] = radius = width = height
		670	h[0] = start_angle ; h[1] = end_engle
		671	*/
		672	decimals = find_number_of_digits(precision);
7785	schaersvoo	673	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));\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);
7614	schaersvoo	674	reset();
		675	break;
		676	}
		677	}
		678	break;
		679	case ELLIPSE:
		680	/*
		681	@ ellipse xc,yc,radius_x,radius_y,color
		682	@ a ellipse with center xc/yc in x/y-range
		683	@ radius_x and radius_y are in pixels
		684	@ may be set draggable / onclick
		685	@ will shrink / expand on zoom out / zoom in
		686	*/
		687	for(i=0;i<5;i++){
		688	switch(i){
		689	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		690	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		691	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
		692	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
		693	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		694	decimals = find_number_of_digits(precision);
7785	schaersvoo	695	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));\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);
7614	schaersvoo	696	click_cnt++;reset();
		697	break;
		698	}
		699	}
		700	break;
		701	case DASHTYPE:
		702	/*
		703	@ dashtype int ,int
		704	@ When dashed is set, the objects will be drawn with this dashtyp
		705	@ default value "dashtype 2,2"
		706	*/
		707	for(i=0;i<2;i++){
		708	switch(i){
		709	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		710	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		711	}
		712	}
		713	break;
		714	case CIRCLE:
		715	/*
		716	@ circle xc,yc,width (2*r in pixels),color
		717	@ use command 'fcircle xc,yc,d,color' or command 'filled' for a filled disk
		718	@ use command 'fillcolor color' to set the fillcolor
		719	@ may be set draggable / onclick
		720	@ will shrink / expand on zoom out / zoom in
		721	*/
		722	for(i=0;i<4;i++){
		723	switch(i){
		724	case 0: double_data[0] = get_real(infile,0);break; /* x */
		725	case 1: double_data[1] = get_real(infile,0);break; /* y */
		726	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* radius in 'dx' xrange*/
		727	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		728	decimals = find_number_of_digits(precision);
7785	schaersvoo	729	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));\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);
7614	schaersvoo	730	click_cnt++;reset();
		731	break;
		732	}
		733	}
		734	break;
		735	case RAYS:
		736	/*
		737	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		738	@ draw rays in color 'color' and center (xc:yc)
7786	schaersvoo	739	@ may be set draggable or onclick (every individual ray)
7614	schaersvoo	740	*/
		741	stroke_color=get_color(infile,0);
7786	schaersvoo	742	fill_color = stroke_color;
		743	double_data[0] = get_real(infile,0);/* xc */
		744	double_data[1] = get_real(infile,0);/* yc */
		745	i=2;
		746	while( ! done ){ /* get next item until EOL*/
		747	if(i > MAX_INT - 1){canvas_error("in command rays to many points / rays in argument: repeat command multiple times to fit");}
		748	if(i%2 == 0 ){
		749	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	750	}
7786	schaersvoo	751	else
		752	{
		753	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	754	}
7786	schaersvoo	755	fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
		756	i++;
7614	schaersvoo	757	}
7786	schaersvoo	758
		759	if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
		760	decimals = find_number_of_digits(precision);
		761	for(c=2; c<i;c = c+2){
7614	schaersvoo	762	click_cnt++;
7786	schaersvoo	763	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));\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);
7614	schaersvoo	764	}
		765	reset();
		766	break;
		767	case ARROW:
		768	/*
		769	@ arrow x1,y1,x2,y2,h,color
		770	@ draw a single headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		771	@ use command 'linewidth int' to adjust thickness of the arrow
		772	@ may be set draggable / onclick
		773	*/
		774	for(i=0;i<6;i++){
		775	switch(i){
		776	case 0: double_data[0] = get_real(infile,0);break; /* x */
		777	case 1: double_data[1] = get_real(infile,0);break; /* y */
		778	case 2: double_data[2] = get_real(infile,0);break; /* x */
		779	case 3: double_data[3] = get_real(infile,0);break; /* y */
		780	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		781	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		782	decimals = find_number_of_digits(precision);
7785	schaersvoo	783	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));\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);
7614	schaersvoo	784	click_cnt++;
		785	reset();
		786	break;
		787	}
		788	}
		789	break;
		790	case ARROW2:
		791	/*
		792	@ arrow2 x1,y1,x2,y2,h,color
		793	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		794	@ use command 'arrowhead int' to adjust the arrow head size
		795	@ use command 'linewidth int' to adjust thickness of the arrow
		796	@ may be set draggable / onclick
		797	*/
		798	for(i=0;i<6;i++){
		799	switch(i){
		800	case 0: double_data[0] = get_real(infile,0);break; /* x */
		801	case 1: double_data[1] = get_real(infile,0);break; /* y */
		802	case 2: double_data[2] = get_real(infile,0);break; /* x */
		803	case 3: double_data[3] = get_real(infile,0);break; /* y */
		804	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		805	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		806	decimals = find_number_of_digits(precision);
7785	schaersvoo	807	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));\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);
7614	schaersvoo	808	click_cnt++;reset();
		809	break;
		810	}
		811	}
		812	break;
		813	case PARALLEL:
		814	/*
		815	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
		816	@ can not be set "onclick" or "drag xy"
		817	*/
		818	for( i = 0;i < 8; i++ ){
		819	switch(i){
		820	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		821	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		822	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		823	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
		824	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		825	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
		826	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
		827	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		828	decimals = find_number_of_digits(precision);
7785	schaersvoo	829	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));\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);
7614	schaersvoo	830	click_cnt++;reset();
		831	break;
		832	default: break;
		833	}
		834	}
		835	break;
		836	case TRIANGLE:
		837	/*
		838	@triangle x1,y1,x2,y2,x3,y3,color
		839	@may be set draggable / onclic
		840	*/
		841	for(i=0;i<7;i++){
		842	switch(i){
		843	case 0: double_data[0] = get_real(infile,0);break; /* x */
		844	case 1: double_data[1] = get_real(infile,0);break; /* y */
		845	case 2: double_data[2] = get_real(infile,0);break; /* x */
		846	case 3: double_data[3] = get_real(infile,0);break; /* y */
		847	case 4: double_data[4] = get_real(infile,0);break; /* x */
		848	case 5: double_data[5] = get_real(infile,0);break; /* y */
		849	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		850	decimals = find_number_of_digits(precision);
7785	schaersvoo	851	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));\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);
7614	schaersvoo	852	click_cnt++;reset();
		853	break;
		854	default: break;
		855	}
		856	}
		857	break;
		858	case LATTICE:
		859	/*
		860	@lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
		861	@can not be set "onclick" or "drag xy"
		862	*/
		863	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		864	for( i = 0; i<9; i++){
		865	switch(i){
		866	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		867	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		868	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
		869	case 3: int_data[3] = (int) (get_real(infile,0));break; /* y1-values -> y-pixels*/
		870	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
		871	case 5: int_data[5] = (int) (get_real(infile,0));break; /* y2-values -> y-pixels*/
		872	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		873	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		874	case 8: stroke_color=get_color(infile,1);
		875	decimals = find_number_of_digits(precision);
		876	string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_translate,translate_x,translate_y);
		877	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		878	snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,[%d,%d]);",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_translate,translate_x,translate_y);
		879	add_to_buffer(tmp_buffer);
		880	break;
		881	default:break;
		882	}
		883	}
		884	reset();
		885	break;
		886	case SNAPTOGRID:
		887	/*
		888	@ snaptogrid
		889	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		890	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
7784	schaersvoo	891	@ 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	892	*/
7784	schaersvoo	893	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;y_use_snap_to_grid = 1;var snap_x = 1;var snap_y = 1;function snap_to_x(x){return x2px(snap_x(Math.round((px2x(x))/snap_x)));};function snap_to_y(y){return y2px(snap_y(Math.round((px2y(y))/snap_y)));};\n");
7614	schaersvoo	894	break;
7784	schaersvoo	895	case XSNAPTOGRID:
		896	/*
		897	@ xsnaptogrid
		898	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		899	@ in case of userdraw the drawn points will snap to xmajor grid
		900	@ if xminor / yminor 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 />
		901	*/
		902	fprintf(js_include_file,"\nx_use_snap_to_grid = 1;var snap_x = 1;if (typeof snap_y === 'undefined') { var snap_y = 1;};var snap_y = 1;function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\n");
		903	break;
		904	case YSNAPTOGRID:
		905	/*
		906	@ ysnaptogrid
		907	@ keyword (no arguments rewquired) needs to be defined before command 'userdraw' and after command 'grid'
		908	@ in case of userdraw the drawn points will snap to ymajor grid
		909	@ if xminor / 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 />
		910	*/
		911	fprintf(js_include_file,"\ny_use_snap_to_grid = 1;if (typeof snap_x === 'undefined') { var snap_x = 1;};var snap_y = 1;\nfunction snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\n");
		912	break;
7663	schaersvoo	913	case USERTEXTAREA_XY:
		914	/*
		915	@ usertextarea_xy
		916	@ keyword
		917	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
		918	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
		919	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		920	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
		921	@ user drawings will not zoom on zooming (or pan on panning)
		922	*/
7749	schaersvoo	923	if(use_tooltip == TRUE){canvas_error("usertextarea_xy can not be combined with intooltip command");}
		924	if( use_input_xy == 1 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		925	fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s(.)\\^\\s(.)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)\|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
		926	use_input_xy = 2;
		927	break;
7652	schaersvoo	928	case USERINPUT_XY:
		929	/*
		930	@ userinput_xy
		931	@ keyword
		932	@ to be used in combination with command "userdraw object_type,color"
		933	@ 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)
		934	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
7749	schaersvoo	935	@ 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	936	@ can not be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
7653	schaersvoo	937	@ user drawings will not zoom on zooming (or pan on panning)
7652	schaersvoo	938	*/
7749	schaersvoo	939	if(use_tooltip == TRUE){canvas_error("userinput_xy can not be combined with intooltip command");}
		940	/* add simple eval check to avoid code injection with unprotected eval(string) */
		941	fprintf(js_include_file,"function safe_eval(exp){if(exp.indexOf('^') != -1){exp = exp.replace(/\\s(.)\\^\\s(.)/ig, \"pow($1, $2)\");};var reg = /(?:[a-z$_][a-z0-9$_]*)\|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;var valid = true;exp = exp.replace(reg,function($0){if (Math.hasOwnProperty($0)){return \"Math.\"+$0;}else{valid = false;};});if (!valid){alert(\"hmmm \"+exp+\" ?\"); exp = null;}else{try { exp = eval(exp); } catch (e) {alert(\"Invalid arithmetic expression\"); exp = null;};};return exp;};");
		942	use_input_xy = 1;
		943	break;
7614	schaersvoo	944	case USERDRAW:
		945	/*
		946	@ userdraw object_type,color
7663	schaersvoo	947	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>segment</li><li>segments</li><li>polyline</li><li>circle</li><li>circles</li><li>arrow</li><li>arrows</li><li>triangle</li><li>polygon</li><li>poly[3-9]</li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline</li><li>freehandlines</li><li>path</li><li>paths</li><li>text</li></ul>
7614	schaersvoo	948	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
		949	@ 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
		950	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
		951	@ 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)
		952	@ use command "filled", "opacity int,int" and "fillcolor color" to trigger coloured filling of fillable objects
		953	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
		954	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas();
		955	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very usefull...)
7663	schaersvoo	956	@ may be combined with keyword 'userinput_xy' or
7653	schaersvoo	957	@ 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	958	*/
		959	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
		960	canvas_error("Only one userdraw primitive may be used: read documentation !!");
		961	}
		962	use_userdraw = TRUE;
7653	schaersvoo	963	fprintf(js_include_file,"<!-- begin userdraw mouse events -->\nvar userdraw_x = new Array();var userdraw_y = new Array();var userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};if(wims_status != \"done\"){canvas_div.addEventListener(\"mousedown\",user_draw,false);canvas_div.addEventListener(\"mousemove\",user_drag,false);canvas_div.addEventListener(\"touchstart\",user_draw,false);canvas_div.addEventListener(\"touchmove\",user_drag,false);}\n<!-- end userdraw mouse events -->",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
7614	schaersvoo	964	draw_type = get_string_argument(infile,0);
		965	stroke_color = get_color(infile,1);
		966	if( strcmp(draw_type,"point") == 0 ){
		967	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		968	if(reply_format < 1 ){reply_format = 8;}
		969	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	970	if(use_input_xy == 1){
		971	add_input_circle(js_include_file,1,1);
		972	add_input_xy(js_include_file,canvas_root_id);
		973	}
7614	schaersvoo	974	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);
		975	}
		976	else
		977	if( strcmp(draw_type,"points") == 0 ){
		978	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		979	if(reply_format < 1 ){reply_format = 8;}
		980	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
7652	schaersvoo	981	if(use_input_xy == 1){
		982	add_input_circle(js_include_file,1,2);
		983	add_input_xy(js_include_file,canvas_root_id);
		984	}
7614	schaersvoo	985	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);
		986	}
		987	else
		988	if( strcmp(draw_type,"segment") == 0 ){
		989	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		990	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		991	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	992	if(use_input_xy == 1){
		993	add_input_segment(js_include_file,1);
		994	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		995	}
7614	schaersvoo	996	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		997	}
		998	else
7663	schaersvoo	999	if( strcmp(draw_type,"polyline") == 0 ){
		1000	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
7782	schaersvoo	1001	if(reply_format < 1){reply_format = 23;}
7780	schaersvoo	1002	if( use_input_xy == 1 ){
		1003	add_input_polyline(js_include_file);
		1004	add_input_xy(js_include_file,canvas_root_id);
7663	schaersvoo	1005	}
		1006	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1007	}
		1008	else
7614	schaersvoo	1009	if( strcmp(draw_type,"segments") == 0 ){
		1010	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1011	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
		1012	if(reply_format < 1){reply_format = 11;}
7652	schaersvoo	1013	if(use_input_xy == 1){
		1014	add_input_segment(js_include_file,2);
		1015	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1016	}
7614	schaersvoo	1017	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
		1018	}
		1019	else
		1020	if( strcmp(draw_type,"circle") == 0 ){
		1021	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1022	if(reply_format < 1){reply_format = 10;}
		1023	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
7652	schaersvoo	1024	if(use_input_xy == 1){
		1025	add_input_circle(js_include_file,2,1);
		1026	add_input_xyr(js_include_file,canvas_root_id);
		1027	}
7614	schaersvoo	1028	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]);
		1029	}
		1030	else
		1031	if( strcmp(draw_type,"circles") == 0 ){
		1032	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1033	if(reply_format < 1){reply_format = 10;}
		1034	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
		1035	add_js_circles(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	1036	if(use_input_xy == 1){
		1037	add_input_circle(js_include_file,2,2);
		1038	add_input_xyr(js_include_file,canvas_root_id);
		1039	}
7614	schaersvoo	1040	}
		1041	else
		1042	if(strcmp(draw_type,"crosshair") == 0 ){
		1043	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1044	if(reply_format < 1){reply_format = 8;}
		1045	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1046	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1047	if(use_input_xy == 1){
		1048	add_input_crosshair(js_include_file,1);
		1049	add_input_xy(js_include_file,canvas_root_id);
		1050	}
7614	schaersvoo	1051	}
		1052	else
		1053	if(strcmp(draw_type,"crosshairs") == 0 ){
		1054	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1055	if(reply_format < 1){reply_format = 8;}
		1056	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
		1057	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity);
7654	schaersvoo	1058	if(use_input_xy == 1){
		1059	add_input_crosshair(js_include_file,2);
		1060	add_input_xy(js_include_file,canvas_root_id);
		1061	}
7614	schaersvoo	1062	}
		1063	else
		1064	if(strcmp(draw_type,"freehandline") == 0 ){
		1065	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1066	if(reply_format < 1){reply_format = 6;}
		1067	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	1068	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1069	}
		1070	else
		1071	if(strcmp(draw_type,"freehandlines") == 0 ){
		1072	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1073	if(reply_format < 1){reply_format = 6;}
		1074	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	1075	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1076	}
		1077	else
		1078	if(strcmp(draw_type,"path") == 0 ){
		1079	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1080	if(reply_format < 1){reply_format = 6;}
		1081	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	1082	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1083	}
		1084	else
		1085	if(strcmp(draw_type,"paths") == 0 ){
		1086	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1087	if(reply_format < 1){reply_format = 6;}
		1088	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	1089	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1090	}
		1091	else
		1092	if(strcmp(draw_type,"arrows") == 0 ){
		1093	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1094	if(reply_format < 1){reply_format = 11;}
		1095	add_js_arrows(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
7654	schaersvoo	1096	if(use_input_xy == 1){
		1097	add_input_arrow(js_include_file,2);
		1098	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1099	}
7614	schaersvoo	1100	}
		1101	else
		1102	if(strcmp(draw_type,"arrow") == 0 ){
		1103	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
		1104	if(reply_format < 1){reply_format = 11;}
		1105	add_js_arrows(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head);
7654	schaersvoo	1106	if(use_input_xy == 1){
		1107	add_input_arrow(js_include_file,1);
		1108	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1109	}
7614	schaersvoo	1110	}
		1111	else
		1112	if(strcmp(draw_type,"polygon") == 0){
		1113	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1114	if(reply_format < 1){reply_format = 2;}
		1115	add_js_poly(js_include_file,-1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7780	schaersvoo	1116	if( use_input_xy == 2 ){
		1117	add_textarea_polygon(js_include_file);
		1118	add_textarea_xy(js_include_file,canvas_root_id);
7746	schaersvoo	1119	}
7614	schaersvoo	1120	}
		1121	else
		1122	if(strncmp(draw_type,"poly",4) == 0){
		1123	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		1124	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1125	if(reply_format < 1){reply_format = 2;}
		1126	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	1127	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1128	}
		1129	else
		1130	if(strcmp(draw_type,"triangle") == 0){
		1131	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
		1132	if(reply_format < 1){reply_format = 2;}
		1133	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	1134	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1135	}
		1136	else
		1137	if( strcmp(draw_type,"line") == 0 ){
		1138	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1139	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1140	if(reply_format < 1){reply_format = 11;}
		1141	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1142	if( use_input_xy == 1 ){
7780	schaersvoo	1143	add_input_line(js_include_file,1);
7747	schaersvoo	1144	add_input_x1y1x2y2(js_include_file,canvas_root_id);
		1145	}
7614	schaersvoo	1146	}
		1147	else
		1148	if( strcmp(draw_type,"lines") == 0 ){
		1149	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		1150	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		1151	if(reply_format < 1){reply_format = 11;}
		1152	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1]);
7747	schaersvoo	1153	if( use_input_xy == 1 ){
7780	schaersvoo	1154	add_input_line(js_include_file,2);
7747	schaersvoo	1155	add_input_x1y1x2y2(js_include_file,canvas_root_id);
7746	schaersvoo	1156	}
7614	schaersvoo	1157	}
		1158	else
		1159	if( strcmp(draw_type,"rects") == 0){
		1160	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1161	if(reply_format < 1){reply_format = 2;}
		1162	add_js_rect(js_include_file,2,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	1163	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1164	}
		1165	else
		1166	if( strcmp(draw_type,"roundrects") == 0){
		1167	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1168	if(reply_format < 1){reply_format = 2;}
		1169	add_js_rect(js_include_file,2,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1]);
7652	schaersvoo	1170	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1171	}
		1172	else
		1173	if( strcmp(draw_type,"rect") == 0){
		1174	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
		1175	if(reply_format < 1){reply_format = 2;}
		1176	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	1177	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1178	}
		1179	else
		1180	if( strcmp(draw_type,"roundrect") == 0){
		1181	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
		1182	if(reply_format < 1){reply_format = 2;}
		1183	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	1184	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1185	}
		1186	else
		1187	if( strcmp(draw_type,"text") == 0){
		1188	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1189	if(reply_format < 1){reply_format = 17;}
		1190	add_js_text(js_include_file,canvas_root_id,font_size,font_family,font_color,stroke_opacity,use_rotate,angle,use_translate,translate_x,translate_y);
7652	schaersvoo	1191	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	1192	}
		1193	else
		1194	{
		1195	canvas_error("unknown drawtype or typo? ");
		1196	}
		1197	reset();
		1198	break;
		1199	case PLOTSTEPS:
		1200	/*
		1201	@ plotsteps a_number
		1202	@ default 150
		1203	@ use with care !
		1204	*/
		1205	plot_steps = (int) (get_real(infile,1));
		1206	break;
		1207	case FONTSIZE:
		1208	/*
		1209	@fontsize font_size
		1210	@default value 12
		1211	*/
		1212	font_size = (int) (get_real(infile,1));
		1213	break;
		1214	case FONTCOLOR:
		1215	/*
		1216	@fontcolor color
		1217	@color: hexcolor or colorname
		1218	@default: black
		1219	@example usage: x/y-axis text
		1220	*/
		1221	font_color = get_color(infile,1);
		1222	break;
		1223	case ANIMATE:
		1224	/*
		1225	@animate type
		1226	@type may be "point" (nothing else , yet...)
		1227	@the point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		1228	@will animate a point on the next plot/curve command
		1229	@the curve will not be draw
		1230	@moves repeatedly from xmin to xmax
		1231	*/
		1232	if( strstr(get_string(infile,1),"point") != 0 ){animation_type = 15;}else{canvas_error("the only animation type (for now) is \"point\"...");}
		1233	break;
7788	schaersvoo	1234	case LEVELCURVE:
		1235	/*
		1236	@levelcurve color,expression in x/y,l1,l2,...
7792	schaersvoo	1237	@draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
		1238	@the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
		1239	@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
		1240	@note : the arrays for holding the javascript data are limited in size
		1241	@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	1242	*/
7792	schaersvoo	1243	fill_color = get_color(infile,0);
7788	schaersvoo	1244	char *fun1 = get_string_argument(infile,0);
		1245	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		1246	i = 0;
		1247	done = FALSE;
		1248	while( !done ){
		1249	double_data[i] = get_real(infile,1);
		1250	i++;
		1251	}
		1252	for(c = 0 ; c < i; c++){
		1253	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));\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);
		1254	click_cnt++;
		1255	}
		1256	reset();
		1257	break;
7823	schaersvoo	1258	case TRACE_JSMATH:
		1259	/*
		1260	@trace_jsmath some_javascript_math_function
		1261	@will use a crosshair to trace the jsmath curve
		1262	@two inputfields will display the current x/y-values (approximated)
7833	schaersvoo	1263	@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	1264	@use linewidth,strokecolor,crosshairsize to adjust the corsshair.
		1265	@example: trace_jsmath Math.pow(x,2)+4*x+16
		1266	@example: trace_jsmath Math.sin(Math.pow(x,Math.Pi))+Math.sqrt(x)
		1267	@no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
7833	schaersvoo	1268	@can not be combined with commands 'mouse color,fontsize' and 'intooltip tip_text'
7823	schaersvoo	1269	*/
7833	schaersvoo	1270	if(use_mouse_coordinates == TRUE){canvas_error("trace_jsmath can not be combined with command 'mouse'");}
		1271	if(use_tooltip == TRUE){canvas_error("trace_jsmath can not be combined with command 'tooltip':it uses the same 'tooltip div' placeholeder");};
		1272	use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
7823	schaersvoo	1273	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7833	schaersvoo	1274	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7823	schaersvoo	1275	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);
		1276	break;
		1277	case JSMATH:
		1278	/*
		1279	@jsmath some_javascript_math_function
		1280	@will calculate an y-value from a userinput x-value and draws a crosshairs on these coordinates.
7833	schaersvoo	1281	@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	1282	@example: jsmath Math.pow(x,2)+4*x+16
		1283	@example: jsmath Math.sin(Math.pow(x,Math.Pi))+Math.sqrt(x)
		1284	@no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
7833	schaersvoo	1285	@can not be combined with commands 'mouse color,fontsize' and 'intooltip tip_text'
7823	schaersvoo	1286	*/
7833	schaersvoo	1287	if(use_mouse_coordinates == TRUE){canvas_error("trace_jsmath can not be combined with command 'mouse'");}
		1288	if(use_tooltip == TRUE){canvas_error("trace_jsmath can not be combined with command 'tooltip':it uses the same 'tooltip div' placeholeder");};
		1289	use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
7823	schaersvoo	1290	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		1291	add_calc_y(js_include_file,canvas_root_id,get_string(infile,1));
		1292	break;
7614	schaersvoo	1293	case CURVE:
		1294	/*
		1295	@curve color,formula(x)
		1296	@plot color,formula(x)
		1297	@use command trange before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1298	@use command "precision" to increase the number of digits of the plotted points
		1299	@use command "plotsteps" to increase / decrease the amount of plotted points (default 150)
		1300	@may be set draggable / onclick
		1301	*/
		1302	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1303	use_parametric = FALSE;
		1304	stroke_color = get_color(infile,0);
		1305	char *fun1 = get_string_argument(infile,0);
		1306	char *fun2 = get_string_argument(infile,1);
		1307	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
7785	schaersvoo	1308	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));\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);
7614	schaersvoo	1309	click_cnt++;
		1310	}
		1311	else
		1312	{
		1313	stroke_color = get_color(infile,0);
		1314	char *fun1 = get_string_argument(infile,1);
		1315	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
7785	schaersvoo	1316	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));\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);
7614	schaersvoo	1317	click_cnt++;
		1318	}
7788	schaersvoo	1319	animation_type = 9;/* reset to curve plotting without animation */
7614	schaersvoo	1320	reset();
		1321	break;
		1322	case FLY_TEXT:
		1323	/*
		1324	@ text fontcolor,x,y,font,text_string
		1325	@ font may be described by keywords : giant,huge,normal,small,tiny
		1326	@ use command 'fontsize' to increase base fontsize for the keywords
		1327	@ may be set "onclick" or "drag xy"
		1328	@ backwards compatible with flydraw
		1329	@ unicode supported: text red,0,0,huge,\\u2232
		1330	@ use command 'string' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1331	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
		1332	*/
		1333	for(i = 0; i < 5 ;i++){
		1334	switch(i){
		1335	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		1336	case 1: double_data[0] = get_real(infile,0);break; /* x */
		1337	case 2: double_data[1] = get_real(infile,0);break; /* y */
		1338	case 3: fly_font = get_string_argument(infile,0);
		1339	if(strcmp(fly_font,"giant") == 0){
		1340	font_size = (int)(font_size + 24);
		1341	}
		1342	else
		1343	{
		1344	if(strcmp(fly_font,"huge") == 0){
		1345	font_size = (int)(font_size + 14);
		1346	}
		1347	else
		1348	{
		1349	if(strcmp(fly_font,"large") == 0){
		1350	font_size = (int)(font_size + 6);
		1351	}
		1352	else
		1353	{
		1354	if(strcmp(fly_font,"small") == 0){
		1355	font_size = (int)(font_size - 4);
		1356	if(font_size<0){font_size = 8;}
		1357	}
		1358	}
		1359	}
		1360	}
		1361	break; /* font_size ! */
		1362	case 4:
		1363	temp = get_string_argument(infile,1);
		1364	decimals = find_number_of_digits(precision);
7785	schaersvoo	1365	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%d,\"%s\",%d,\"%s\",%d,%s));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family,use_affine,affine_matrix);
7614	schaersvoo	1366	click_cnt++;reset();break;
		1367	default:break;
		1368	}
		1369	}
		1370	break;
		1371	case FLY_TEXTUP:
		1372	/*
		1373	@ textup fontcolor,x,y,font,text_string
		1374	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1375	@ font may be described by keywords : giant,huge,normal,small,tiny
		1376	@ use command 'fontsize' to increase base fontsize for the keywords
		1377	@ backwards compatible with flydraw
		1378	@ unicode supported: textup red,0,0,huge,\\u2232
		1379	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
		1380	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case rested 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
		1381	*/
		1382	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		1383	for(i = 0; i<5 ;i++){
		1384	switch(i){
		1385	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1386	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1387	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1388	case 3: fly_font = get_string_argument(infile,0);
		1389	if(strcmp(fly_font,"giant") == 0){
		1390	font_size = (int)(font_size + 24);
		1391	}
		1392	else
		1393	{
		1394	if(strcmp(fly_font,"huge") == 0){
		1395	font_size = (int)(font_size + 14);
		1396	}
		1397	else
		1398	{
		1399	if(strcmp(fly_font,"large") == 0){
		1400	font_size = (int)(font_size + 6);
		1401	}
		1402	else
		1403	{
		1404	if(strcmp(fly_font,"small") == 0){
		1405	font_size = (int)(font_size - 4);
		1406	if(font_size<0){font_size = 8;}
		1407	}
		1408	}
		1409	}
		1410	}
		1411	break; /* font_size ! */
		1412	case 4:
		1413	decimals = find_number_of_digits(precision);
		1414	temp = get_string_argument(infile,1);
		1415	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1416	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1417	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1418	add_to_buffer(tmp_buffer);
		1419	break;
		1420	default:break;
		1421	}
		1422	}
		1423	reset();
		1424	break;
		1425	case FONTFAMILY:
		1426	/*
		1427	@ fontfamily font_description
		1428	@ set the font family; for browsers that support it
		1429	@ font_description: Ariel ,Courier, Helvetica etc
		1430	@ 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
		1431	@ use correct syntax : 'font style' 'font size'px 'fontfamily'
		1432	*/
		1433	font_family = get_string(infile,1);
		1434	break;
		1435	case STRINGUP:
		1436	/*
		1437	@ stringup color,x,y,rotation_degrees,the text string
		1438	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		1439	@ unicode supported: stringup red,0,0,45,\\u2232
		1440	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
		1441
		1442	*/
		1443	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		1444	for(i=0;i<6;i++){
		1445	switch(i){
		1446	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		1447	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		1448	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		1449	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		1450	case 4: decimals = find_number_of_digits(precision);
		1451	temp = get_string_argument(infile,1);
		1452	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1453	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1454	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,[%d,%d]);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_translate,translate_x,translate_y);
		1455	add_to_buffer(tmp_buffer);
		1456	break;
		1457	default:break;
		1458	}
		1459	}
		1460	reset();
		1461	break;
		1462	case STRING:
		1463	/*
		1464	@ string color,x,y,the text string
		1465	@ may be set "onclick" or "drag xy"
		1466	@ unicode supported: string red,0,0,\\u2232
		1467	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
		1468	*/
		1469	for(i=0;i<5;i++){
		1470	switch(i){
		1471	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		1472	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		1473	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		1474	case 3: decimals = find_number_of_digits(precision);
		1475	temp = get_string_argument(infile,1);
		1476	decimals = find_number_of_digits(precision);
7785	schaersvoo	1477	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%d,\"%s\",%d,\"%s\",%d,%s));\n",click_cnt,onclick,drag_type,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,0,0,temp,font_size,font_family,use_affine,affine_matrix);
7614	schaersvoo	1478	click_cnt++;reset();break;
		1479	break;
		1480	default:break;
		1481	}
		1482	}
		1483	break;
		1484	case MATHML:
		1485	/*
		1486	@ mathml x1,y1,x2,y2,mathml_string
		1487	@ mathml will be displayed in a rectangle left top (x1:y1) , right bottom (x2:y2)
		1488	@ can be set onclick <br />(however dragging is not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1489	@ 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();"
		1490	@ If other inputfields (command input / command textarea) or userdraw is performed, the function read_canvas() will not read mathml. Use some generic function to read it....
7653	schaersvoo	1491
7614	schaersvoo	1492	*/
		1493	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		1494	for(i=0;i<5;i++){
		1495	switch(i){
		1496	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1497	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1498	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1499	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1500	case 4: decimals = find_number_of_digits(precision);
		1501	if(onclick == 1 ){ onclick = click_cnt;click_cnt++;}
		1502	temp = get_string(infile,1);
		1503	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
		1504	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);
		1505	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1506	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);
		1507	add_to_buffer(tmp_buffer);
		1508	/*
		1509	in case inputs are present , trigger adding the read_mathml()
		1510	if no other reply_format is defined
		1511	note: all other reply types will include a reading of elements with id='mathml'+p)
		1512	*/
		1513	if(strstr(temp,"mathml0") != NULL){
		1514	if(reply_format < 1 ){reply_format = 16;} /* no other reply type is defined */
		1515	}
		1516	break;
		1517	default:break;
		1518	}
		1519	}
		1520	reset();
		1521	break;
		1522	case HTTP:
		1523	/*
		1524	@http x1,y1,x2,y2,http://some_adress.com
		1525	@an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
		1526	@do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		1527	@can not be 'set onclick' or 'drag xy'
		1528	*/
		1529	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
		1530	for(i=0;i<5;i++){
		1531	switch(i){
		1532	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
		1533	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		1534	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		1535	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		1536	case 4: decimals = find_number_of_digits(precision);
		1537	temp = get_string(infile,1);
		1538	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		1539	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);
		1540	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1541	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);
		1542	add_to_buffer(tmp_buffer);
		1543	break;
		1544	}
		1545	}
		1546	reset();
		1547	break;
		1548	case HTML:
		1549	/*
		1550	@ html x1,y1,x2,y2,html_string
		1551	@ all tags are allowed
		1552	@ can be set onclick <br />(dragging not supported)<br />javascript:read_dragdrop(); will return click number of mathml-object
		1553	@ 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.
		1554
		1555	note: uses the same code as 'mathml'
		1556	*/
		1557	break;
		1558	case X_AXIS_STRINGS:
		1559	/*
		1560	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1561	@ xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1562	@ use these x-axis values in stead of default xmin...xmax
		1563	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1564	@ if the 'x-axis words' are to big amd will overlap, a simple alternating offset will be applied
		1565	@ 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
		1566	@ 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
		1567	*/
		1568	temp = get_string(infile,1);
		1569	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1570	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1571	fprintf(js_include_file,"x_strings = [\"%s\"];\n ",temp);
		1572	use_axis_numbering = 1;
		1573	break;
		1574	case Y_AXIS_STRINGS:
		1575	/*
		1576	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1577	@ yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		1578	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1579	@ use these y-axis values in stead of default ymin...ymax
		1580	@ 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
		1581	*/
		1582	temp = get_string(infile,1);
		1583	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		1584	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		1585	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
		1586	use_axis_numbering = 1;
		1587	break;
		1588
		1589	case AXIS_NUMBERING:
		1590	/*
		1591	@ axisnumbering
		1592	@ keyword, no aguments required
		1593	*/
		1594	use_axis_numbering = 1;
		1595	break;
		1596	case AXIS:
		1597	/*
		1598	@ axis
		1599	@ keyword, no aguments required
		1600
		1601	*/
		1602	use_axis = TRUE;
		1603	break;
7654	schaersvoo	1604	case SGRAPH:
		1605	/*
		1606	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		1607	@ primitive implementation of a 'broken scale' graph...
		1608	@ not very versatile.
		1609	@ 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
		1610	*/
		1611	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
		1612	for(i = 0 ; i < 8 ;i++){
		1613	switch(i){
		1614	case 0:double_data[0] = get_real(infile,0);break;
		1615	case 1:double_data[1] = get_real(infile,0);break;
		1616	case 2:double_data[2] = get_real(infile,0);break;
		1617	case 3:double_data[3] = get_real(infile,0);break;
		1618	case 4:int_data[0] = (int)(get_real(infile,0));break;
		1619	case 5:int_data[1] = (int)(get_real(infile,0));break;
		1620	case 6:stroke_color = get_color(infile,0);break;
		1621	case 7:font_color = get_color(infile,1);
7658	schaersvoo	1622	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	1623	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7658	schaersvoo	1624	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	1625	add_to_buffer(tmp_buffer);
		1626	break;
		1627	default:break;
		1628	}
		1629	}
		1630	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
		1631	break;
7614	schaersvoo	1632	case GRID:/* xmajor,ymajor,color [,xminor,yminor,tick length (px) ,color]*/
		1633	/*
		1634	@ grid step_x,step_y,gridcolor
		1635	@ use command "fontcolor", "fontsize" , "fontfamily" to adjust font <br />defaults: black,12,Ariel
		1636	@ 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	1637	@ 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	1638	@ can not be set "onclick" or "drag xy"
		1639	@ 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')
		1640	@ 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')
		1641	@ 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')
		1642	*/
7729	schaersvoo	1643	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
7614	schaersvoo	1644	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		1645	for(i=0;i<4;i++){
		1646	switch(i){
		1647	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		1648	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		1649	case 2:
		1650	if( use_axis == TRUE ){
		1651	stroke_color = get_color(infile,0);
		1652	done = FALSE;
		1653	int_data[0] = (int) (get_real(infile,0));/* xminor */
		1654	int_data[1] = (int) (get_real(infile,0));/* yminor */
		1655	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		1656	fill_color = get_color(infile,1); /* used as axis_color*/
		1657	}
		1658	else
		1659	{
		1660	int_data[0] = 1;
		1661	int_data[1] = 1;
		1662	stroke_color = get_color(infile,1);
		1663	fill_color = stroke_color;
		1664	}
		1665	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	1666	/* set snap_x snap_y values in pixels */
7647	schaersvoo	1667	fprintf(js_include_file,"snap_x = %f;snap_y = %f\n;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
7614	schaersvoo	1668	/* draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){ */
		1669
		1670	string_length = snprintf(NULL,0, "draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,[%d,%d],%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1671	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1672	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,[%d,%d],%d,%d,%d,\"%s\",%.2f);\n",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_translate,translate_x,translate_y,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1673	add_to_buffer(tmp_buffer);
		1674	break;
		1675	}
		1676	}
		1677	reset();
		1678	break;
		1679	case OPACITY:
		1680	/*
		1681	@ opacity 0-255,0-255
		1682	@
		1683	*/
		1684	for(i = 0 ; i<2;i++){
		1685	switch(i){
		1686	case 0: double_data[0]=(int)(get_real(infile,0));break;
		1687	case 1: double_data[1]=(int)(get_real(infile,1));break;
		1688	default: break;
		1689	}
		1690	}
		1691	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 ? */
		1692	stroke_opacity = (double) (0.0039215double_data[0]);/ 0.0 - 1.0 */
		1693	fill_opacity = (double) (0.0039215double_data[1]);/ 0.0 - 1.0 */
		1694	break;
		1695	case ROTATE:
		1696	/*
		1697	@rotate rotation_angle
		1698	@
		1699	*/
		1700	use_rotate = TRUE;
		1701	use_translate = TRUE;
		1702	translate_x = x2px(0);
		1703	translate_y = y2px(0);
		1704	angle = get_real(infile,1);
		1705	break;
7785	schaersvoo	1706	case KILLAFFINE:
		1707	/*
		1708	@ killaffine
		1709	@ keyword : resets the transformation matrix to 1,0,0,1,0,0
		1710	*/
		1711	use_affine = FALSE;
		1712	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
		1713	break;
		1714	case AFFINE:
		1715	/*
		1716	@affine a,b,c,d,tx,ty
		1717	@ defines a transformation matrix for subsequent objects
		1718	@ use keyword 'killaffine' to end the transformation
		1719	@ note 1: only 'draggable' / 'noclick' objects can be transformed.
		1720	@ note 2: do not use 'onclick' or 'drag xy' with tranformation objects : the mouse coordinates do not get transformed (yet)
		1721	@ note 3: no matrix operations on the transformation matrix implemented (yet)
		1722	@ a : Scales the drawings horizontally
		1723	@ b : Skews the drawings horizontally
		1724	@ c : Skews the drawings vertically
		1725	@ d : Scales the drawings vertically
7786	schaersvoo	1726	@ tx: Moves the drawings horizontally in pixels !
		1727	@ ty: Moves the drawings vertically in pixels !
7785	schaersvoo	1728	*/
		1729	for(i = 0 ; i<6;i++){
		1730	switch(i){
		1731	case 0: double_data[0] = get_real(infile,0);break;
		1732	case 1: double_data[1] = get_real(infile,0);break;
		1733	case 2: double_data[2] = get_real(infile,0);break;
		1734	case 3: double_data[3] = get_real(infile,0);break;
		1735	case 4: int_data[0] = (int)(get_real(infile,0));break;
		1736	case 5: int_data[1] = (int)(get_real(infile,1));
		1737	use_affine = TRUE;
		1738	string_length = snprintf(NULL,0,"[%.2f,%.2f,%.2f,%.2f,%d,%d] ",double_data[0],double_data[1],double_data[2],double_data[3],int_data[0],int_data[1]);
		1739	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		1740	snprintf(affine_matrix,string_length,"[%.2f,%.2f,%.2f,%.2f,%d,%d] ",double_data[0],double_data[1],double_data[2],double_data[3],int_data[0],int_data[1]);
		1741	break;
		1742	default: break;
		1743	}
		1744	}
		1745	break;
7614	schaersvoo	1746	case KILLTRANSLATION:
		1747	/*
		1748	killtranslation
		1749	*/
		1750	break;
		1751	case TRANSLATION:
		1752	/*
		1753	@translation tx,ty
		1754	@
		1755	*/
		1756	use_translate = TRUE;
		1757	translate_x = get_real(infile,0);
		1758	translate_y = get_real(infile,1);
		1759	break;
		1760	case DASHED:
		1761	/*
		1762	@ keyword "dashed"
		1763	@ next object will be drawn with a dashed line
		1764	@ change dashing scheme by using command "dashtype int,int)
		1765	*/
		1766	use_dashed = TRUE;
		1767	break;
		1768	case FILLED:
		1769	/*
		1770	@ keyword "filled"
		1771	@ the next 'fillable' object (only) will be filled
		1772	@ use command "fillcolor color" to set fillcolor
		1773	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
		1774	@ 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 !
		1775	*/
		1776	use_filled = TRUE;
		1777	break;
		1778	case STYLE:
		1779	/*
		1780	@highlight color,opacity,linewidth
		1781	@ NOT IMPLEMENTED
		1782	@ use command "onclick" : when the object receives a userclick it will increase it's linewidth
		1783	*/
		1784	break;
		1785	case FILLCOLOR:
		1786	/*
		1787	@ fillcolor colorname or #hex
		1788	@ Set the color for a filled object : mainly used for command 'userdraw obj,stroke_color'
		1789	@ All fillable massive object will have a fillcolor == strokecolor (just to be compatible with flydraw...)
		1790	*/
		1791	fill_color = get_color(infile,1);
		1792	break;
		1793	case STROKECOLOR:
		1794	/*
		1795	@ strokecolor colorname or #hex
		1796	@ to be used for commands that do not supply a color argument (like command 'linegraph')
		1797	*/
		1798	stroke_color = get_color(infile,1);
		1799	break;
		1800	case BGIMAGE:
		1801	/*
		1802	@bgimage image_location
		1803	@use an image as background .<br />(we use the background of 'canvas_div' )
		1804	@the background image will be resized to match "width = xsize" and "height = ysize"
		1805	*/
		1806	URL = get_string(infile,1);
		1807	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);
		1808	break;
		1809	case BGCOLOR:
		1810	/*
		1811	@bgcolor colorname or #hex
		1812	@use this color as background of the "div" containing the canvas(es)
		1813	*/
		1814	/* [255,255,255]*/
		1815	bgcolor = get_string(infile,1);
		1816	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		1817	int found = 0;
		1818	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		1819	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		1820	bgcolor = colors[i].hex;
		1821	found = 1;
		1822	break;
		1823	}
		1824	}
		1825	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		1826	}
		1827	fprintf(js_include_file,"<!-- set background color of canvas div -->\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
		1828	break;
		1829	case COPY:
		1830	/*
		1831	@ copy x,y,x1,y1,x2,y2,[filename URL]
		1832	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		1833	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
		1834	@ [filename] is the URL of the image
		1835	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1836	@ 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
		1837	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1838
		1839	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1840	draw_external_image(canvas_type,URL,sx,sy,swidth,sheight,x,y,width,height,drag_drop){
		1841	*/
		1842	for(i = 0 ; i<7;i++){
		1843	switch(i){
		1844	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		1845	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		1846	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		1847	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		1848	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		1849	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		1850	case 6: URL = get_string(infile,1);
		1851	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		1852	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		1853	if( drag_type > -1 ){
		1854	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1855	if(reply_format < 1 ){reply_format = 20;}
		1856	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);
		1857	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1858	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);
		1859	drag_type = -1;
		1860	ext_img_cnt++;
		1861	}
		1862	else
		1863	{
		1864	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1865	/*
		1866	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\n\
		1867	*/
		1868	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]);
		1869	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1870	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]);
		1871	}
		1872	add_to_buffer(tmp_buffer);
		1873	break;
		1874	default: break;
		1875	}
		1876	}
		1877	reset();
		1878	break;
		1879	/*
		1880	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1881	img Specifies the image, canvas, or video element to use
		1882	sx The x coordinate where to start clipping : x1 = int_data[0]
		1883	sy The y coordinate where to start clipping : x2 = int_data[1]
		1884	swidth The width of the clipped image : int_data[2] - int_data[0]
		1885	sheight The height of the clipped image : int_data[3] - int_data[1]
		1886	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		1887	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		1888	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		1889	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		1890	*/
		1891	case COPYRESIZED:
		1892	/*
		1893	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
		1894	@ 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
		1895	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		1896	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		1897	@ 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
		1898	@ if you want to draw / userdraw on an "imported" image, make sure it is transparent.<br />for example GNUPlot: set terminal gif transparent
		1899	*/
		1900	for(i = 0 ; i<9;i++){
		1901	switch(i){
		1902	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		1903	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		1904	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		1905	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		1906	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		1907	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		1908	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		1909	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		1910	case 8: URL = get_string(infile,1);
		1911	if( drag_type > -1 ){
		1912	if( js_function[DRAG_EXTERNAL_IMAGE] != 1 ){ js_function[DRAG_EXTERNAL_IMAGE] = 1;}
		1913	if(reply_format < 1 ){reply_format = 20;}
		1914	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);
		1915	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1916	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);
		1917	drag_type = -1;
		1918	ext_img_cnt++;
		1919	}
		1920	else
		1921	{
		1922	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1923	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]);
		1924	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1925	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]);
		1926	}
		1927	add_to_buffer(tmp_buffer);
		1928	default: break;
		1929	}
		1930	}
		1931	reset();
		1932	break;
		1933	case BUTTON:
		1934	/*
		1935	button x,y,value
		1936	*/
		1937	break;
		1938	case INPUTSTYLE:
		1939	/*
		1940	@ inputstyle style_description
		1941	@ example: inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt
		1942	*/
		1943	input_style = get_string(infile,1);
		1944	break;
		1945	case INPUT:
		1946	/*
		1947	@ input x,y,size,editable,value
		1948	@ to set inputfield "readonly", use editable = 0
		1949	@ only active inputfields (editable = 1) will be read with read_canvas();
		1950	@ may be further controlled by "inputstyle" (inputcss is not yet implemented...)
		1951	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1952	*/
		1953	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
		1954	for(i = 0 ; i<5;i++){
		1955	switch(i){
		1956	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		1957	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		1958	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		1959	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1960	case 4:
		1961	temp = get_string_argument(infile,1);
		1962	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);
		1963	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1964	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);
		1965	add_to_buffer(tmp_buffer);
		1966	input_cnt++;break;
		1967	default: break;
		1968	}
		1969	}
		1970	if(reply_format < 1 ){reply_format = 15;}
		1971	reset();
		1972	break;
		1973	case TEXTAREA:
		1974	/*
		1975	@ textarea x,y,cols,rows,readonly,value
		1976	@ may be further controlled by "inputstyle"
		1977	@ if mathml inputfields are present and / or some userdraw is performed, these data will NOT be send as well (javascript:read_canvas();)
		1978	*/
		1979	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
		1980	for(i = 0 ; i<6;i++){
		1981	switch(i){
		1982	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		1983	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		1984	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		1985	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		1986	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		1987	case 5: temp = get_string_argument(infile,1);
		1988	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);
		1989	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1990	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);
		1991	add_to_buffer(tmp_buffer);
		1992	input_cnt++;break;
		1993	default: break;
		1994	}
		1995	}
		1996	if(reply_format < 1 ){reply_format = 15;}
		1997	reset();
		1998	break;
		1999	case MOUSE_PRECISION:
		2000	/*
		2001	@ precision int
		2002	@ 10 = 1 decimal ; 100 = 2 decimals etc
		2003	@ may be used / changed before every object
		2004	*/
		2005	precision = (int) (get_real(infile,1));
		2006	break;
		2007	case ZOOM:
		2008	/*
		2009	@ zoom button_color
		2010	@ introduce a controlpanel at the lower right corner
		2011	@ 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
		2012	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		2013	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
		2014	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		2015	@ NOTE: only objects that may be set draggable / clickable will be zoomed / panned
		2016	@ 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 !!
		2017	*/
7653	schaersvoo	2018	fprintf(js_include_file,"use_pan_and_zoom = 1;");
7797	schaersvoo	2019	use_pan_and_zoom = TRUE;
7614	schaersvoo	2020	if( js_function[DRAW_ZOOM_BUTTONS] != 1 ){ js_function[DRAW_ZOOM_BUTTONS] = 1;}
		2021	/* we use BG_CANVAS (0) */
		2022	stroke_color = get_color(infile,1);
7653	schaersvoo	2023	string_length = snprintf(NULL,0," draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	2024	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
7653	schaersvoo	2025	snprintf(tmp_buffer,MAX_BUFFER-1,"draw_zoom_buttons(%d,\"%s\",%f);",BG_CANVAS,stroke_color,stroke_opacity);
7614	schaersvoo	2026	add_to_buffer(tmp_buffer);
		2027	done = TRUE;
		2028	break;
		2029	case ONCLICK:
		2030	/*
		2031	@ onclick
		2032	@ keyword, no arguments
		2033	@ if the next object is clicked, it's 'object sequence number' in fly script is returned <br /> by javascript:read_canvas();
		2034	@ Line based object will show an increase in linewidth<br />Font based objects will show the text in 'bold' when clicked.
		2035	@ NOTE: not all objects may be set clickable
		2036	*/
		2037
		2038	onclick = 1;
		2039	break;
		2040	case DRAG:
		2041	/*
		2042	@ drag [x][y][xy]
		2043	@ the next object will be draggable in x / y / xy direction
		2044	@ the displacement can be read by 'javascript:read_dragdrop();'
		2045	@ 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.
		2046	@ 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 !!
		2047	*/
		2048	temp = get_string(infile,1);
		2049	if(strstr(temp,"xy") != NULL ){
		2050	drag_type = 0;
		2051	}
		2052	else
		2053	{
		2054	if(strstr(temp,"x") != NULL ){
		2055	drag_type = 1;
		2056	}
		2057	else
		2058	{
		2059	drag_type = 2;
		2060	}
		2061	}
		2062	onclick = 2;
		2063	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
		2064	break;
		2065	case BLINK:
		2066	/*
		2067	@ blink time(seconds)
		2068	@ NOT IMPLEMETED -YET
		2069	*/
		2070	break;
		2071	case MOUSE:
		2072	/*
		2073	@ mouse color,fontsize
		2074	@ will display the cursor coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
		2075	*/
7823	schaersvoo	2076	if(use_mouse_coordinates == TRUE){canvas_error("trace_jsmath can not be combined with command 'mouse'");}
7614	schaersvoo	2077	use_mouse_coordinates = TRUE; /* will add & call function "use_mouse_coordinates(){}" in current_canvas /current_context */
		2078	stroke_color = get_color(infile,0);
		2079	font_size = (int) (get_real(infile,1));
		2080	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity);
		2081	break;
		2082	case INTOOLTIP:
		2083	/*
		2084	@ intooltip link_text
		2085	@ link_text is a single line (span-element)
		2086	@ link_text may also be an image URL http://some_server/images/my_image.png
		2087	@ link_text may contain HTML markup
		2088	@ the canvas will be displayed in a tooltip on 'link_text'
		2089	@ the canvas is default transparent: use command 'bgcolor color' to adjust background-color<br />the link test will alos be shown with this bgcolor.
		2090	*/
7823	schaersvoo	2091	if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy command");}
7614	schaersvoo	2092	use_tooltip = TRUE;
		2093	tooltip_text = get_string(infile,1);
		2094	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		2095	break;
		2096	case AUDIO:
		2097	/*
		2098	@ audio x,y,w,h,loop,visible,audiofile location
		2099	@ x,y : left top corner of audio element (in xrange / yrange)
		2100	@ w,y : width and height in pixels
		2101	@ loop : 0 or 1 ( 1 = loop audio fragment)
		2102	@ visible : 0 or 1 (1 = show controls)
		2103	@ audio format may be in .mp3 or .ogg
		2104	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		2105	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		2106	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		2107	@ 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 />
		2108	*/
		2109	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		2110	for(i=0;i<7;i++){
		2111	switch(i){
		2112	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2113	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2114	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2115	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2116	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		2117	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
		2118	case 6:
		2119	temp = get_string(infile,1);
		2120	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		2121	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		2122	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);
		2123	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2124	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);
		2125	add_to_buffer(tmp_buffer);
		2126	break;
		2127	default:break;
		2128	}
		2129	}
		2130	reset();
		2131	break;
		2132	case VIDEO:
		2133	/*
		2134	@ video x,y,w,h,videofile location
		2135	@ x,y : left top corner of audio element (in xrange / yrange)
		2136	@ w,y : width and height in pixels
		2137	@ example:<br />wims getfile : video 0,0,120,120,myvideo.mp4
		2138	@ video format may be in *.mp4 (todo:other formats)
		2139	*/
		2140	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
		2141	for(i=0;i<5;i++){
		2142	switch(i){
		2143	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		2144	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		2145	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		2146	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		2147	case 4: temp = get_string(infile,1);
		2148	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);
		2149	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2150	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);
		2151	add_to_buffer(tmp_buffer);
		2152	break;
		2153	default:break;
		2154	}
		2155	}
		2156	reset();
		2157	break;
		2158	case HATCHFILL:
		2159	/*
		2160	@ hatchfill x0,y0,dx,dy,color
		2161	@ x0,y0 in xrange / yrange
		2162	@ distances dx,dy in pixels
		2163	*/
		2164	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
		2165	for(i=0;i<5;i++){
		2166	switch(i){
		2167	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2168	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2169	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2170	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2171	case 4: stroke_color = get_color(infile,1);
		2172	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2173	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);
		2174	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2175	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);
		2176	add_to_buffer(tmp_buffer);
		2177	break;
		2178	default:break;
		2179	}
		2180	}
		2181	reset();
		2182	break;
7647	schaersvoo	2183	case DIAMONDFILL:
		2184	/*
		2185	@ diamondfill x0,y0,dx,dy,color
		2186	@ x0,y0 in xrange / yrange
		2187	@ distances dx,dy in pixels
		2188	*/
		2189	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
		2190	for(i=0;i<5;i++){
		2191	switch(i){
		2192	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2193	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2194	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2195	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2196	case 4: stroke_color = get_color(infile,1);
		2197	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2198	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);
		2199	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2200	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);
		2201	add_to_buffer(tmp_buffer);
		2202	break;
		2203	default:break;
		2204	}
		2205	}
		2206	reset();
		2207	break;
7614	schaersvoo	2208	case GRIDFILL:
		2209	/*
		2210	@ gridfill x0,y0,dx,dy,color
		2211	@ x0,y0 in xrange / yrange
		2212	@ distances dx,dy in pixels
		2213	*/
		2214	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
		2215	for(i=0;i<5;i++){
		2216	switch(i){
		2217	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2218	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2219	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2220	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2221	case 4: stroke_color = get_color(infile,1);
		2222	/* draw_gridfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
		2223	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);
		2224	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2225	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);
		2226	add_to_buffer(tmp_buffer);
		2227	break;
		2228	default:break;
		2229	}
		2230	}
		2231	reset();
		2232	break;
		2233	case DOTFILL:
		2234	/*
		2235	@ dotfill x0,y0,dx,dy,color
		2236	@ x0,y0 in xrange / yrange
		2237	@ distances dx,dy in pixels
		2238	@ radius of dots is linewidth
		2239	*/
		2240	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
		2241	for(i=0;i<5;i++){
		2242	switch(i){
		2243	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2244	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2245	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* dx pixel */
		2246	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* dy pixel*/
		2247	case 4: stroke_color = get_color(infile,1);
		2248	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
		2249	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);
		2250	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2251	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);
		2252	add_to_buffer(tmp_buffer);
		2253	break;
		2254	default:break;
		2255	}
		2256	}
		2257	reset();
		2258	break;
		2259	case IMAGEFILL:
		2260	/*
		2261	@ imagefill dx,dy,image_url
		2262	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2263	@ After pattern filling ,the fill-color should be reset !
		2264	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2265	@ normal url : imagefill 80,80,$module_dir/gifs/my_image.gif
		2266	@ normal url : imagefill 80,80,http://adres/a/b/c/my_image.jpg
		2267	@ if dx,dy is larger than the image, the whole image will be background to the next object.
		2268	*/
		2269	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
		2270	for(i=0 ;i < 3 ; i++){
		2271	switch(i){
		2272	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2273	case 1:int_data[1] = (int) (get_real(infile,0));break;
		2274	case 2: URL = get_string_argument(infile,1);
		2275	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);
		2276	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2277	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);
		2278	add_to_buffer(tmp_buffer);
		2279	break;
		2280	}
		2281	}
		2282	break;
		2283	case FILLTOBORDER:
		2284	/*
		2285	@ filltoborder x,y,bordercolor,color
		2286	@ fill the region of point (x:y) bounded by 'bordercolor' with color 'color'
		2287	@ any other color will not act as border to the bucket fill
		2288	@ use this command after all boundary objects are declared.
		2289	@ 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..
		2290	*/
		2291	for(i=0 ;i < 4 ; i++){
		2292	switch(i){
		2293	case 0:double_data[0] = get_real(infile,0);break;
		2294	case 1:double_data[1] = get_real(infile,0);break;
		2295	case 2:bgcolor = get_color(infile,0);break;
		2296	case 3:fill_color = get_color(infile,1);
		2297	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2298	js_function[DRAW_FILLTOBORDER] = 1;
		2299	add_js_filltoborder(js_include_file,canvas_root_id);
		2300	}
		2301	decimals = find_number_of_digits(precision);
		2302	string_length = snprintf(NULL,0, "filltoborder(%.f,%.f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
		2303	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2304	snprintf(tmp_buffer,string_length,"filltoborder(%.f,%.f,[%s,%d],[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215));
		2305	add_to_buffer(tmp_buffer);
		2306	break;
		2307	default:break;
		2308	}
		2309	}
		2310	break;
		2311	case FLOODFILL:
		2312	/*
		2313	@ floodfill x,y,color
		2314	@ alternative syntax: fill x,y,color
		2315	@ fill the region of point (x:y) with color 'color'
		2316	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
		2317	@ use this command after all boundary objects are declared.
		2318	@ Use command 'clickfill,color' for user click driven flood fill.
		2319	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2320	@ 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..
		2321	*/
		2322	for(i=0 ;i < 4 ; i++){
		2323	switch(i){
		2324	case 0:double_data[0] = get_real(infile,0);break;
		2325	case 1:double_data[1] = get_real(infile,0);break;
		2326	case 2:fill_color = get_color(infile,1);
		2327	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2328	js_function[DRAW_FLOODFILL] = 1;
		2329	add_js_floodfill(js_include_file,canvas_root_id);
		2330	}
		2331	decimals = find_number_of_digits(precision);/floodfill(interaction,x,y,[R,G,B,A]) /
		2332	string_length = snprintf(NULL,0, "floodfill(0,%.f,%.f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
		2333	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2334	snprintf(tmp_buffer,string_length,"floodfill(0,%.f,%.f,[%s,%d]);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215));
		2335	add_to_buffer(tmp_buffer);
		2336	break;
		2337	default:break;
		2338	}
		2339	}
		2340	break;
		2341	case CLICKFILLMARGE:
		2342	clickfillmarge = (int) (get_real(infile,1));
		2343	break;
		2344	/*
		2345	@ clickfillmarge int
		2346	@ default 20 (pixels)
		2347	@ 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[])
		2348	*/
		2349	case CLICKFILL:
		2350	/*
		2351	@ clickfill fillcolor
		2352	@ user left mouse click will floodfill the area with fillcolor
		2353	@ multiple areas may be coloured
		2354	@ 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)
		2355	@ the answer will be read as the (x:y) click coordinates per coloured area
		2356	@ background color of main div may be set by using command "bgcolor color"
		2357	@ may not be combined with command "userdraw"
		2358	@ NOTE: recognised colour boundaries are in the "drag canvas" e.g. only for objects that can be set draggable / clickable
		2359	*/
		2360	fill_color = get_color(infile,1);
		2361	if(js_function[DRAW_FLOODFILL] != 1 ){/* use only once */
		2362	js_function[DRAW_FLOODFILL] = 1;
		2363	add_js_floodfill(js_include_file,canvas_root_id);
		2364	}
7653	schaersvoo	2365	fprintf(js_include_file,"\n<!-- begin command clickfill -->\nvar marge_xy = %d;var userdraw_x = new Array();var userdraw_y = new Array();var user_clickfill_cnt = 0;\ncanvas_div.addEventListener(\"mousedown\",clickfill,false);function clickfill(evt){var x = evt.clientX - findPosX(canvas_div) + document.body.scrollLeft + document.documentElement.scrollLeft;var y = evt.clientY - findPosY(canvas_div) + document.body.scrollTop + document.documentElement.scrollTop;if(evt.which != 1){for(var p=0; p < user_clickfill_cnt;p++){if(userdraw_x[p] + marge_xy > x && userdraw_x[p] - marge_xy < x){if(userdraw_y[p] + marge_xy > y && userdraw_y[p] - marge_xy < y){if(confirm(\"Clear ?\")){floodfill(1,userdraw_x[p],userdraw_y[p],canvas_div.style.backgroundColor);userdraw_x.splice(p,2);userdraw_y.splice(p,2);user_clickfill_cnt--;return;};};};};};userdraw_x[user_clickfill_cnt] = x;userdraw_y[user_clickfill_cnt] = y;user_clickfill_cnt++;floodfill(1,x,y,[%s,%d]);};",clickfillmarge,fill_color,(int) (fill_opacity/0.0039215));
7614	schaersvoo	2366	add_read_canvas(1);
		2367	break;
		2368	case SETPIXEL:
		2369	/*
		2370	@ setpixel x,y,color
		2371	@ A "point" with diameter 1 pixel centeres at (x:y) in xrange / yrange
		2372	@ pixels can not be dragged or clicked
		2373	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2374	*/
		2375	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2376	for(i=0;i<3;i++){
		2377	switch(i){
		2378	case 0: double_data[0] = get_real(infile,0); break; /* x */
		2379	case 1: double_data[1] = get_real(infile,0); break; /* y */
		2380	case 2: stroke_color = get_color(infile,1);
		2381	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2382	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2383	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		2384	add_to_buffer(tmp_buffer);
		2385	break;
		2386	default:break;
		2387	}
		2388	}
		2389	reset();
		2390	break;
		2391	case PIXELSIZE:
		2392	/*
		2393	@ pixelsize int
		2394	@ in case you want to deviate from default pixelsize = 1...
		2395	*/
		2396	pixelsize = (int) get_real(infile,1);
		2397	break;
		2398	case PIXELS:
		2399	/*
		2400	@ pixels color,x1,y1,x2,y2,x3,y3...
		2401	@ Draw "points" with diameter 1 pixel
		2402	@ pixels can not be dragged or clicked
		2403	@ "pixelsize = 1" may be changed by command "pixelsize int"
		2404	*/
		2405	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		2406	stroke_color=get_color(infile,0);
		2407	i=0;
		2408	c=0;
		2409	while( ! done ){ /* get next item until EOL*/
		2410	if(i > MAX_INT - 1){canvas_error("to many points in argument: repeat command multiple times to fit");}
		2411	for( c = 0 ; c < 2; c++){
		2412	if(c == 0 ){
		2413	double_data[i] = get_real(infile,0);
		2414	i++;
		2415	}
		2416	else
		2417	{
		2418	double_data[i] = get_real(infile,1);
		2419	i++;
		2420	}
		2421	}
		2422	}
		2423	decimals = find_number_of_digits(precision);
		2424	/* double_xy2js_array(double xy[],int len,int decimals) /
		2425	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2426	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2427	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		2428	add_to_buffer(tmp_buffer);
		2429	break;
		2430	case REPLYFORMAT:
		2431	/*
		2432	@ replyformat number
		2433	@ default values should be fine !
7782	schaersvoo	2434	@ 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></ul>
7614	schaersvoo	2435	@ note to 'userdraw text,color' : the x / y-values are in pixels ! (this to avoid too lengthy calculations in javascript...)
		2436	*/
		2437	reply_format = (int) get_real(infile,1);
		2438	break;
		2439	case LEGENDCOLORS:
		2440	/*
		2441	@ legendcolors color1:color2:color3:...:color_n
		2442	@ will be used to colour a legend
		2443	@ make sure the number of colours match the number of legend items
		2444	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
		2445	*/
		2446	temp = get_string(infile,1);
		2447	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2448	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2449	break;
		2450	case LEGEND:
		2451	/*
		2452	@ legend string1:string2:string3....string_n
		2453	@ will be used to create a legend for a graph
		2454	@ also see command 'piechart'
		2455	*/
		2456	temp = get_string(infile,1);
		2457	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2458	fprintf(js_include_file,"var legend%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2459	break;
		2460	case XLABEL:
		2461	/*
		2462	@ xlabel some_string
		2463	@ will be used to create a label for the x-axis (label is in quadrant I)
		2464	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2465	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2466	*/
		2467	temp = get_string(infile,1);
7653	schaersvoo	2468	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7614	schaersvoo	2469	break;
		2470	case YLABEL:
		2471	/*
		2472	@ ylabel some_string
		2473	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
		2474	@ can only be used together with command 'grid'<br />not depending on keywords 'axis' and 'axisnumbering'
		2475	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)
		2476	*/
		2477	temp = get_string(infile,1);
7653	schaersvoo	2478	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	2479	break;
		2480	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		2481	/*
		2482	@ linegraph x1:y1;x2:y2...x_n:y;2
		2483	@ will plot your data in a graph
		2484	@ may only to be used together with command 'grid'
		2485	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2486	@ use command 'legend' to provide an optional legend in right-top-corner
		2487	@ also see command 'piechart'
		2488	@ multiple linegraphs may be used in a single plot
		2489	@ <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>
		2490	*/
		2491	temp = get_string(infile,1);
		2492	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2493	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	2494	linegraph_cnt++;
		2495	reset();
		2496	break;
		2497	case CLOCK:
		2498	/*
		2499	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
		2500	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		2501	@ 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
		2502	@ 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>
		2503	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		2504	@ no combinations with other reply_types allowed, for now
7783	schaersvoo	2505	@ 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	2506	*/
		2507	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		2508
		2509	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		2510	for(i=0;i<9;i++){
		2511	switch(i){
		2512	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		2513	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		2514	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		2515	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		2516	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		2517	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
7783	schaersvoo	2518	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	2519	case 7: int_data[7] = (int)(get_real(infile,0));/* interactive 0,1,2*/
7783	schaersvoo	2520	switch(int_data[7]){
		2521	case 0:break;
		2522	case 1:if(clock_cnt == 0){
		2523	if( reply_format == 0 ){
7614	schaersvoo	2524	reply_format = 18; /* user sets clock */
7783	schaersvoo	2525	/* 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	2526	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2527	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");
		2528	add_to_buffer(tmp_buffer);
7783	schaersvoo	2529	*/
		2530	fprintf(js_include_file,"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");
		2531	}
		2532	else
		2533	{
		2534	canvas_error("interactive clock may not be used together with other reply_types...");
		2535	}
		2536	fprintf(stdout,"<br /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M-\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><input type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S-\" /><br />",clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt,clock_cnt);
		2537	}
		2538	break;
		2539	case 2:if( reply_format == 0 ){
		2540	reply_format = 19; /* "onclick */
		2541	fprintf(js_include_file,"\n<!-- begin onclick handler for clocks -->\nvar reply = new Array();\n\ncanvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();\nvar x = evt.clientX - canvas_rect.left;\nvar y = evt.clientY - canvas_rect.top;\nvar p = 0;\nvar name;\nvar t = true;\nwhile(t){try{name = eval('clocks'+p);\nif( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;\nname = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,\"lightblue\",name.fg_color);\n};\n}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);\nname = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);\n};\np++;\n}catch(e){t=false;\n};\n};\n};\n};\n\n<!-- end onclick handler for clocks -->\n ");
		2542	}
		2543	else
		2544	{
		2545	if( reply_format != 19){
7614	schaersvoo	2546	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		2547	}
7783	schaersvoo	2548	}
		2549	break;
		2550	default: canvas_error("interactive must be set 0,1 or 2");break;
		2551	}
		2552	break;
7614	schaersvoo	2553	case 8:
		2554	temp = get_string(infile,1);
		2555	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		2556	if( strlen(temp) < 1 ){temp = ",\"\",\"\",\"\",\"\",\"\"";}
		2557	string_length = snprintf(NULL,0,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		2558	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2559	snprintf(tmp_buffer,string_length,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		2560	add_to_buffer(tmp_buffer);
		2561	clock_cnt++;
		2562	break;
		2563	default:break;
		2564	}
		2565	}
		2566	break;
		2567	case BARCHART:
		2568	/*
		2569	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		2570	@ will be used to create a legend for bar graph
		2571	@ may only to be used together with command 'grid'
		2572	@ can be used together with freestyle x-axis/y-axis texts : see commands 'xaxis' and 'yaxis'
		2573	@ use command 'legend' to provide an optional legend in right-top-corner
		2574	@ also see command 'piechart'
		2575	*/
		2576	temp = get_string(infile,1);
		2577	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
7653	schaersvoo	2578	fprintf(js_include_file,"var barchart%d = [\"%s\"];",canvas_root_id,temp);
7614	schaersvoo	2579	reset();
		2580	break;
		2581	case PIECHART:
		2582	/*
		2583	@ piechart xc,yc,radius,'data+colorlist'
		2584	@ (xc : yc) center of circle diagram in xrange/yrange
		2585	@ radius in pixels
		2586	@ 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
		2587	@ example data+colorlist : 132:red:23565:green:323:black:234324:orange:23434:yellow:2543:white
		2588	@ the number of colors must match the number of data.
		2589	@ use command "opacity 0-255,0-255" to adjust fill_opacity of colours
		2590	@ 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...
		2591	*/
		2592	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
		2593	for(i=0;i<5;i++){
		2594	switch(i){
		2595	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
		2596	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
		2597	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		2598	case 3: temp = get_string(infile,1);
		2599	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
		2600	string_length = snprintf(NULL,0,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,font_size,font_family);
		2601	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2602	snprintf(tmp_buffer,string_length,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\");\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,font_size,font_family);
		2603	add_to_buffer(tmp_buffer);
		2604	break;
		2605	default:break;
		2606	}
		2607	}
		2608	reset();
		2609	break;
		2610	case STATUS:
		2611	fprintf(js_include_file,"\nstatus=\"waiting\";\n");
		2612	break;
7735	schaersvoo	2613	case XLOGBASE:
7729	schaersvoo	2614	/*
7735	schaersvoo	2615	@ xlogbase number
		2616	@ sets the logbase number for the x-axis
7729	schaersvoo	2617	@ default value 10
7735	schaersvoo	2618	@ use together with commands xlogscale / xylogscale
7729	schaersvoo	2619	*/
7735	schaersvoo	2620	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7729	schaersvoo	2621	break;
7735	schaersvoo	2622	case YLOGBASE:
		2623	/*
		2624	@ ylogbase number
		2625	@ sets the logbase number for the y-axis
		2626	@ default value 10
		2627	@ use together with commands ylogscale / xylogscale
		2628	*/
		2629	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		2630	break;
7614	schaersvoo	2631	case XLOGSCALE:
		2632	/*
7735	schaersvoo	2633	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		2634	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2635	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		2636	@ the linewidth is set using command 'linewidth int'
		2637	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2638	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
7779	schaersvoo	2639	@ 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	2640	@ note: the complete canvas will be used for the 'log paper'
		2641	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2642	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2643	@ 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')
		2644	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2645	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7614	schaersvoo	2646	*/
7735	schaersvoo	2647	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2648	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		2649	for(i=0;i<4;i++){
		2650	switch(i){
		2651	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2652	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2653	case 2: stroke_color = get_color(infile,0); break;
		2654	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	2655	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	2656	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	2657	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	2658	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		2659	add_to_buffer(tmp_buffer);
		2660	break;
		2661	default:break;
		2662	}
		2663	}
7614	schaersvoo	2664	break;
		2665	case YLOGSCALE:
7729	schaersvoo	2666	/*
		2667	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		2668	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2669	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		2670	@ the linewidth is set using command 'linewidth int'
		2671	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	2672	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
7779	schaersvoo	2673	@ 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	2674	@ note: the complete canvas will be used for the 'log paper'
		2675	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2676	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2677	@ 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	2678	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2679	@ attention: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	2680	*/
		2681	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2682	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		2683	for(i=0;i<4;i++){
		2684	switch(i){
		2685	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		2686	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		2687	case 2: stroke_color = get_color(infile,0); break;
		2688	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	2689	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	2690	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	2691	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	2692	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	2693	add_to_buffer(tmp_buffer);
		2694	break;
		2695	default:break;
		2696	}
		2697	}
7614	schaersvoo	2698	break;
		2699	case XYLOGSCALE:
7735	schaersvoo	2700	/*
		2701	@ xylogscale majorcolor,minorcolor
		2702	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		2703	@ the linewidth is set using command 'linewidth int'
		2704	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		2705	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
7739	schaersvoo	2706	@ 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	2707	@ note: the complete canvas will be used for the 'log paper'
		2708	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		2709	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		2710	@ 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')
		2711	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		2712	@ attention: keyword 'snaptogrid' may not lead to the desired result...
		2713	*/
		2714	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		2715	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		2716	for(i=0;i<2;i++){
		2717	switch(i){
		2718	case 0: stroke_color = get_color(infile,0); break;
		2719	case 1: fill_color = get_color(infile,1);
7779	schaersvoo	2720	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	2721	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	2722	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	2723	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		2724	add_to_buffer(tmp_buffer);
		2725	break;
		2726	default:break;
		2727	}
		2728	}
		2729	break;
7614	schaersvoo	2730	default:sync_input(infile);
		2731	break;
		2732	}
		2733	}
		2734	/* we are done parsing script file */
		2735
		2736	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable shapes / objects ! */
		2737	add_javascript_functions(js_function,canvas_root_id);
		2738	/* add read_canvas() etc functions if needed */
		2739	if( reply_format > 0 ){ add_read_canvas(reply_format);}
		2740	/* using mouse coordinate display ? */
		2741	if( use_mouse_coordinates == TRUE ){
		2742	tmp_buffer = my_newmem(26);
		2743	snprintf(tmp_buffer,25,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
		2744	}
7797	schaersvoo	2745	if( use_pan_and_zoom == TRUE ){
		2746	/* in case of zooming ... */
7729	schaersvoo	2747	fprintf(js_include_file,"\n<!-- some extra global stuff : need to rethink panning and zooming !!! -->\n\
7797	schaersvoo	2748	precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
7729	schaersvoo	2749	var ymin_start=ymin;var ymax_start=xmax;\
		2750	var zoom_x_increment=0;var zoom_y_increment=0;\
		2751	var pan_x_increment=0;var pan_y_increment=0;\
		2752	if(use_ylogscale == 0 ){\
		2753	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (xmax - xmin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
		2754	}else{\
		2755	zoom_x_increment = (xmax - xmin)/20;\
		2756	pan_x_increment = (xmax - xmin)/20;\
		2757	};\
7653	schaersvoo	2758	function start_canvas%d(type){\
		2759	switch(type){\
7729	schaersvoo	2760	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		2761	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	2762	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		2763	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		2764	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		2765	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
		2766	case 6:location.reload();break;\
		2767	default:break;\
		2768	};\
		2769	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		2770	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
		2771	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){}\
		2772	%s\
		2773	};\
7797	schaersvoo	2774	start_canvas%d(333);\
7614	schaersvoo	2775	};\n\
		2776	<!-- end wims_canvas_function -->\n\
7797	schaersvoo	2777	wims_canvas_function%d();\n",precision,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
		2778	}
		2779	else
		2780	{
		2781	/* no zoom, just add buffer */
		2782	fprintf(js_include_file,"\n<!-- add buffer -->\n\
		2783	%s\
		2784	};\n\
		2785	<!-- end wims_canvas_function -->\n\
		2786	wims_canvas_function%d();\n",buffer,canvas_root_id);
		2787	}
7614	schaersvoo	2788	/* done writing the javascript include file */
		2789	fclose(js_include_file);
		2790
		2791	}
		2792
		2793	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
		2794	if(use_tooltip == TRUE){
		2795	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		2796	}
		2797	exit(EXIT_SUCCESS);
		2798	}
		2799	/* end main() */
		2800
		2801	/******************************************************************************
		2802	**
		2803	** sync_input
		2804	**
		2805	** synchronises input line - reads to end of line, leaving file pointer
		2806	** at first character of next line.
		2807	**
		2808	** Used by:
		2809	** main program - error handling.
		2810	**
		2811	******************************************************************************/
		2812	void sync_input(FILE *infile)
		2813	{
		2814	int c = 0;
		2815
7658	schaersvoo	2816	if( c == '\n' \|\| c == ';' ) return;
		2817	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	2818	if( c == EOF ) finished = 1;
7658	schaersvoo	2819	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	2820	return;
		2821	}
		2822
		2823	/******************************************************************************/
		2824
		2825	char str_replace(const char str, const char old, const char new){
		2826	/* http://creativeandcritical.net/str-replace-c/ */
		2827	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		2828	char ret, r;
		2829	const char p, q;
		2830	size_t oldlen = strlen(old);
		2831	size_t count = 0;
		2832	size_t retlen = 0;
		2833	size_t newlen = strlen(new);
		2834	if (oldlen != newlen){
		2835	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		2836	count++;
		2837	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		2838	}
		2839	}
		2840	else
		2841	{
		2842	retlen = strlen(str);
		2843	}
		2844
		2845	if ((ret = malloc(retlen + 1)) == NULL){
		2846	ret = NULL;
		2847	canvas_error("string argument is NULL");
		2848	}
		2849	else
		2850	{
		2851	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		2852	size_t l = q - p;
		2853	memcpy(r, p, l);
		2854	r += l;
		2855	memcpy(r, new, newlen);
		2856	r += newlen;
		2857	}
		2858	strcpy(r, p);
		2859	}
		2860	return ret;
		2861	}
		2862
		2863	/******************************************************************************/
		2864	/*
		2865	avoid the use of ctypes.h for tolower() toupper();
		2866	it gives trouble in FreeBSD 9.0 / 9.1 when used in a chroot environment (C library bug) : Undefined symbol "_ThreadRuneLocale"
		2867	Upper case -> Lower case : c = c - 'A'+ 'a';
		2868	Lower case -> Upper case c = c + 'A' - 'a';
		2869	*/
		2870	int tolower(int c){
		2871	if(c <= 'Z'){
		2872	if (c >= 'A'){
		2873	return c - 'A' + 'a';
		2874	}
		2875	}
		2876	return c;
		2877	}
		2878
		2879	int toupper(int c){
		2880	if(c >= 'a' && c <= 'z'){
		2881	return c + 'A' - 'a';
		2882	}
		2883	return c;
		2884	}
		2885
		2886	char get_color(FILE infile , int last){
		2887	int c,i = 0,is_hex = 0;
		2888	char temp[MAX_COLOR_STRING], *string;
7748	schaersvoo	2889	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) ){
7614	schaersvoo	2890	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		2891	if( c == '#' ){
		2892	is_hex = 1;
		2893	}
		2894	if( c != ' '){
		2895	temp[i]=tolower(c);
		2896	i++;
		2897	}
		2898	}
7658	schaersvoo	2899	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
7748	schaersvoo	2900	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	2901	if( c == EOF ){finished = 1;}
		2902	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2903	temp[i]='\0';
		2904	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		2905	if( is_hex == 1 ){
		2906	char red[3], green[3], blue[3];
		2907	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		2908	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		2909	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		2910	int r = (int) strtol(red, NULL, 16);
		2911	int g = (int) strtol(green, NULL, 16);
		2912	int b = (int) strtol(blue, NULL, 16);
		2913	string = (char *)my_newmem(12);
		2914	snprintf(string,11,"%d,%d,%d",r,g,b);
		2915	return string;
		2916	}
		2917	else
		2918	{
		2919	string = (char *)my_newmem(sizeof(temp));
		2920	snprintf(string,sizeof(temp),"%s",temp);
		2921	for( i = 0; i <= NUMBER_OF_COLORNAMES ; i++ ){
		2922	if( strcmp( colors[i].name , string ) == 0 ){
		2923	return colors[i].rgb;
		2924	}
		2925	}
		2926	}
		2927	/* not found...return error */
		2928	free(string);string = NULL;
		2929	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
		2930	return NULL;
		2931	}
		2932
		2933	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2934	int c,i=0;
		2935	char temp[MAX_BUFFER], *string;
7748	schaersvoo	2936	while(( (c=getc(infile)) != EOF ) && ( c != '\n') ){
7614	schaersvoo	2937	temp[i]=c;
		2938	i++;
		2939	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		2940	}
7748	schaersvoo	2941	if( ( c == '\n' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
		2942	if( c == '\n') { done = TRUE; line_number++; }
7614	schaersvoo	2943	if( c == EOF ) {
		2944	finished = 1;
		2945	if( last != 1 ){ canvas_error("expected more arguments");}
		2946	}
		2947	temp[i]='\0';
		2948	if( strlen(temp) == 0 ){ canvas_error("expected a word or string, but found nothing !!");}
		2949	string=(char *)my_newmem(strlen(temp));
		2950	snprintf(string,sizeof(temp),"%s",temp);
		2951	return string;
		2952	}
		2953
		2954	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		2955	int c,i=0;
		2956	char temp[MAX_BUFFER], *string;
7748	schaersvoo	2957	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',')){
7614	schaersvoo	2958	temp[i]=c;
		2959	i++;
		2960	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		2961	}
7748	schaersvoo	2962	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
		2963	if( c == '\n') { line_number++; }
7614	schaersvoo	2964	if( c == EOF ) {finished = 1;}
		2965	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		2966	temp[i]='\0';
		2967	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
		2968	string=(char *)my_newmem(sizeof(temp));
		2969	snprintf(string,sizeof(temp),"%s",temp);
		2970	done = TRUE;
		2971	return string;
		2972	}
		2973
		2974	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		2975	int c,i=0,found_calc = 0;
		2976	double y;
		2977	char tmp[MAX_INT];
7658	schaersvoo	2978	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && ( c != ';')){
7614	schaersvoo	2979	if( c != ' ' ){
		2980	/*
		2981	libmatheval will segfault when for example: "xrange -10,+10" or "xrange -10,10+" is used
		2982	We will check after assert() if it's a NULL pointer...and exit program via :
		2983	canvas_error("I'm having trouble parsing your \"expression\" ");
		2984	*/
		2985	if( i == 0 && c == '+' ){
		2986	continue;
		2987	}
		2988	else
		2989	{
		2990	if(canvas_iscalculation(c) != 0){
		2991	found_calc = 1;
		2992	c = tolower(c);
		2993	}
		2994	tmp[i] = c;
		2995	i++;
		2996	}
		2997	}
		2998	if( i > MAX_INT - 1){canvas_error("number too large");}
		2999	}
7658	schaersvoo	3000	if( ( c == '\n' \|\| c == EOF \|\| c == ';' ) && last == 0){canvas_error("expecting more arguments in command");}
		3001	if( c == '\n' \|\| c == ';' ){ done = TRUE; line_number++; }
7614	schaersvoo	3002	if( c == EOF ){done = TRUE ; finished = 1;}
		3003	tmp[i]='\0';
		3004	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
		3005	if( found_calc == 1 ){ /* use libmatheval to calculate 2pi/3 /
		3006	void *f = evaluator_create(tmp);
		3007	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
		3008	y = evaluator_evaluate_x(f, 1);
		3009	/* if function is bogus; y = 1 : so no core dumps */
		3010	evaluator_destroy(f);
		3011	}
		3012	else
		3013	{
		3014	y = atof(tmp);
		3015	}
		3016	return y;
		3017	}
		3018	void canvas_error(char *msg){
7748	schaersvoo	3019	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number-1,msg);
7614	schaersvoo	3020	finished = 1;
		3021	exit(EXIT_SUCCESS);
		3022	}
		3023
		3024
		3025	/* convert x/y coordinates to pixel */
		3026	int x2px(double x){
		3027	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		3028	}
		3029
		3030	int y2px(double y){
		3031	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		3032	}
		3033
		3034	double px2x(int x){
		3035	return (x*(xmax - xmin)/xsize + xmin);
		3036	}
		3037	double px2y(int y){
		3038	return (y*(ymax - ymin)/ysize + ymin);
		3039	}
		3040
		3041	void add_to_buffer(char *tmp){
		3042	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		3043	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		3044	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		3045	if( space_left > strlen(tmp)){
		3046	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		3047	}
		3048	else
		3049	{
		3050	canvas_error("buffer is too big\n");
		3051	}
		3052	tmp = NULL;free(tmp);
		3053	return;
		3054	}
		3055
		3056	void reset(){
		3057	if(use_filled == TRUE){use_filled = FALSE;}
		3058	if(use_dashed == TRUE){use_dashed = FALSE;}
		3059	if(use_translate == TRUE){use_translate = FALSE;}
		3060	if(use_rotate == TRUE){use_rotate = FALSE;}
		3061	onclick = 0;
		3062	}
		3063
		3064
		3065
		3066	/* What reply format in read_canvas();
		3067
		3068	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		3069	1 = x1,x2,x3,x4....x_n
		3070	y1,y2,y3,y4....y_n
		3071
		3072	x/y in pixels
		3073
		3074	2 = x1,x2,x3,x4....x_n
		3075	y1,y2,y3,y4....y_n
		3076	x/y in xrange / yrange coordinate system
		3077
		3078	3 = x1,x2,x3,x4....x_n
		3079	y1,y2,y3,y4....y_n
		3080	r1,r2,r3,r4....r_n
		3081
		3082	x/y in pixels
		3083	r in pixels
		3084
		3085	4 = x1,x2,x3,x4....x_n
		3086	y1,y2,y3,y4....y_n
		3087	r1,r2,r3,r4....r_n
		3088
		3089	x/y in xrange / yrange coordinate system
		3090	r in pixels
		3091
		3092	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3093	Ay1,Ay2,Ay3,Ay4....Ay_n
		3094	Bx1,Bx2,Bx3,Bx4....Bx_n
		3095	By1,By2,By3,By4....By_n
		3096	Cx1,Cx2,Cx3,Cx4....Cx_n
		3097	Cy1,Cy2,Cy3,Cy4....Cy_n
		3098	....
		3099	Zx1,Zx2,Zx3,Zx4....Zx_n
		3100	Zy1,Zy2,Zy3,Zy4....Zy_n
		3101
		3102	x/y in pixels
		3103
		3104	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		3105	Ay1,Ay2,Ay3,Ay4....Ay_n
		3106	Bx1,Bx2,Bx3,Bx4....Bx_n
		3107	By1,By2,By3,By4....By_n
		3108	Cx1,Cx2,Cx3,Cx4....Cx_n
		3109	Cy1,Cy2,Cy3,Cy4....Cy_n
		3110	....
		3111	Zx1,Zx2,Zx3,Zx4....Zx_n
		3112	Zy1,Zy2,Zy3,Zy4....Zy_n
		3113
		3114	x/y in xrange / yrange coordinate system
		3115
		3116	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3117
		3118	x/y in pixels
		3119
		3120	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
		3121
		3122	x/y in xrange / yrange coordinate system
		3123
		3124	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3125
		3126	x/y in pixels
		3127
		3128	10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
		3129
		3130	x/y in xrange / yrange coordinate system
		3131
		3132	11 = Ax1,Ay1,Ax2,Ay2
		3133	Bx1,By1,Bx2,By2
		3134	Cx1,Cy1,Cx2,Cy2
		3135	Dx1,Dy1,Dx2,Dy2
		3136	......
		3137	Zx1,Zy1,Zx2,Zy2
		3138
		3139	x/y in xrange / yrange coordinate system
		3140
		3141	12 = Ax1,Ay1,Ax2,Ay2
		3142	Bx1,By1,Bx2,By2
		3143	Cx1,Cy1,Cx2,Cy2
		3144	Dx1,Dy1,Dx2,Dy2
		3145	......
		3146	Zx1,Zy1,Zx2,Zy2
		3147
		3148	x/y in pixels
		3149
		3150	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		3151
		3152	x/y in xrange / yrange coordinate system
		3153	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		3154	x/y in pixels
		3155	15 = reply from inputfields,textareas
		3156	reply1,reply2,reply3,...,reply_n
		3157
		3158	16 = read mathml inputfields only
		3159
		3160	17 = read userdraw text only (x1:y1:text1,x2:y2:text2...x_n:y_n:text_n
		3161	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		3162
		3163	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		3164	19 = return clicked object number (analogue to shape-library onclick)
		3165	20 = return x/y-data in x-range/y-range of all 'draggable' images
		3166	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		3167	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		3168	x/y in xrange / yrange coordinate system
7782	schaersvoo	3169	23 = answertype for a polyline : remove multiple occurences due to reclick on a point to create next polyline segment
7614	schaersvoo	3170	*/
		3171
		3172
		3173	void add_read_canvas(int type_reply){
		3174	/* just 1 reply type allowed */
		3175	switch(type_reply){
		3176	/* TO DO
		3177	!!!! NEED TO SIMPLIFY !!!!
		3178	answers may have:
		3179	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		3180	*/
		3181	case 1: fprintf(js_include_file,"\
7653	schaersvoo	3182	\n<!-- begin function 1 read_canvas() -->\n\
7614	schaersvoo	3183	function read_canvas(){\
		3184	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3185	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3186	var p = 0;var input_reply = new Array();\
		3187	if( document.getElementById(\"canvas_input0\")){\
		3188	var t = 0;\
		3189	while(document.getElementById(\"canvas_input\"+t)){\
		3190	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3191	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3192	p++;\
		3193	};\
		3194	t++;\
		3195	};\
		3196	};\
		3197	if( typeof userdraw_text != 'undefined' ){\
		3198	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		3199	}\
		3200	else\
		3201	{\
		3202	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		3203	}\
		3204	}\
		3205	else\
		3206	{\
		3207	if( typeof userdraw_text != 'undefined' ){\
		3208	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		3209	}\
		3210	else\
		3211	{\
		3212	return userdraw_x+\"\\n\"+userdraw_y;\
		3213	}\
		3214	};\
		3215	};\
		3216	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3217	<!-- end function 1 read_canvas() -->");
7614	schaersvoo	3218	break;
		3219	case 2: fprintf(js_include_file,"\
7653	schaersvoo	3220	\n<!-- begin function 2 read_canvas() -->\n\
7614	schaersvoo	3221	function read_canvas(){\
		3222	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3223	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3224	while(userdraw_x[p]){\
		3225	reply_x[p] = px2x(userdraw_x[p]);\
		3226	reply_y[p] = px2y(userdraw_y[p]);\
		3227	p++;\
		3228	};\
		3229	if(p == 0){alert(\"nothing drawn...\");return;};\
		3230	if( document.getElementById(\"canvas_input0\")){\
		3231	var p = 0;var input_reply = new Array();\
		3232	if( document.getElementById(\"canvas_input0\")){\
		3233	var t = 0;\
		3234	while(document.getElementById(\"canvas_input\"+t)){\
		3235	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3236	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3237	p++;\
		3238	};\
		3239	t++;\
		3240	};\
		3241	};\
		3242	if( typeof userdraw_text != 'undefined' ){\
		3243	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3244	}\
		3245	else\
		3246	{\
		3247	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		3248	}\
		3249	}\
		3250	else\
		3251	{\
		3252	if( typeof userdraw_text != 'undefined' ){\
		3253	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		3254	}\
		3255	else\
		3256	{\
		3257	return reply_x+\"\\n\"+reply_y;\
		3258	};\
		3259	};\
		3260	};\
		3261	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3262	<!-- end function 2 read_canvas() -->");
7614	schaersvoo	3263	break;
		3264	case 3: fprintf(js_include_file,"\
7653	schaersvoo	3265	\n<!-- begin function 3 read_canvas() -->\n\
7614	schaersvoo	3266	function read_canvas(){\
		3267	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3268	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3269	var p = 0;var input_reply = new Array();\
		3270	if( document.getElementById(\"canvas_input0\")){\
		3271	var t = 0;\
		3272	while(document.getElementById(\"canvas_input\"+t)){\
		3273	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3274	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3275	p++;\
		3276	};\
		3277	t++;\
		3278	};\
		3279	};\
		3280	if( typeof userdraw_text != 'undefined' ){\
		3281	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3282	}\
		3283	else\
		3284	{\
		3285	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3286	}\
		3287	}\
		3288	else\
		3289	{\
		3290	if( typeof userdraw_text != 'undefined' ){\
		3291	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		3292	}\
		3293	else\
		3294	{\
		3295	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		3296	}\
		3297	}\
		3298	};\
		3299	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3300	<!-- end function 3 read_canvas() -->");
7614	schaersvoo	3301	break;
		3302	case 4: fprintf(js_include_file,"\
7653	schaersvoo	3303	\n<!-- begin function 4 read_canvas() -->\n\
7614	schaersvoo	3304	function read_canvas(){\
		3305	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3306	while(userdraw_x[p]){\
		3307	reply_x[p] = px2x(userdraw_x[p]);\
		3308	reply_y[p] = px2y(userdraw_y[p]);\
		3309	p++;\
		3310	};\
		3311	if(p == 0){alert(\"nothing drawn...\");return;};\
		3312	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3313	var p = 0;var input_reply = new Array();\
		3314	if( document.getElementById(\"canvas_input0\")){\
		3315	var t = 0;\
		3316	while(document.getElementById(\"canvas_input\"+t)){\
		3317	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3318	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3319	p++;\
		3320	};\
		3321	t++;\
		3322	};\
		3323	};\
		3324	if( typeof userdraw_text != 'undefined' ){\
		3325	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3326	}\
		3327	else\
		3328	{\
		3329	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		3330	}\
		3331	}\
		3332	else\
		3333	{\
		3334	if( typeof userdraw_text != 'undefined' ){\
		3335	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		3336	}\
		3337	else\
		3338	{\
		3339	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		3340	}\
		3341	};\
		3342	};\
		3343	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3344	<!-- end function 4 read_canvas() -->");
7614	schaersvoo	3345	break;
		3346	/*
		3347	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3348	used for userdraw multiple paths
		3349	*/
		3350	case 5: fprintf(js_include_file,"\
7653	schaersvoo	3351	\n<!-- begin function 5 read_canvas() -->\n\
7614	schaersvoo	3352	function read_canvas(){\
		3353	var p = 0;\
		3354	var reply = \"\";\
		3355	for(p = 0; p < userdraw_x.length;p++){\
		3356	if(userdraw_x[p] != null ){\
		3357	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		3358	};\
		3359	};\
		3360	if(p == 0){alert(\"nothing drawn...\");return;};\
		3361	userdraw_x = [];userdraw_y = [];\
		3362	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3363	var p = 0;var input_reply = new Array();\
		3364	if( document.getElementById(\"canvas_input0\")){\
		3365	var t = 0;\
		3366	while(document.getElementById(\"canvas_input\"+t)){\
		3367	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3368	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3369	p++;\
		3370	};\
		3371	t++;\
		3372	};\
		3373	};\
		3374	if( typeof userdraw_text != 'undefined' ){\
		3375	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3376	}\
		3377	else\
		3378	{\
		3379	return reply +\"\\n\"+input_reply;\
		3380	}\
		3381	}\
		3382	else\
		3383	{\
		3384	if( typeof userdraw_text != 'undefined' ){\
		3385	return reply+\"\\n\"+userdraw_text;\
		3386	}\
		3387	else\
		3388	{\
		3389	return reply;\
		3390	}\
		3391	};\
		3392	};\
7654	schaersvoo	3393	this.read_canvas = rdad_canvas;\n\
7653	schaersvoo	3394	<!-- end function 5 read_canvas() -->");
7614	schaersvoo	3395	break;
		3396	/*
		3397	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		3398	used for userdraw multiple paths
		3399	*/
		3400	case 6: fprintf(js_include_file,"\
7653	schaersvoo	3401	\n<!-- begin function 6 read_canvas() -->\n\
7614	schaersvoo	3402	function read_canvas(){\
		3403	var p = 0;\
		3404	var reply = \"\";\
		3405	var tmp_x = new Array();\
		3406	var tmp_y = new Array();\
		3407	for(p = 0 ; p < userdraw_x.length; p++){\
		3408	tmp_x = userdraw_x[p];\
		3409	tmp_y = userdraw_y[p];\
		3410	if(tmp_x != null){\
		3411	for(var i = 0 ; i < tmp_x.length ; i++){\
		3412	tmp_x[i] = px2x(tmp_x[i]);\
		3413	tmp_y[i] = px2y(tmp_y[i]);\
		3414	};\
		3415	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		3416	};\
		3417	};\
		3418	if(p == 0){alert(\"nothing drawn...\");return;};\
		3419	userdraw_x = [];userdraw_y = [];\
		3420	if( document.getElementById(\"canvas_input0\") ){\
		3421	var p = 0;var input_reply = new Array();\
		3422	if( document.getElementById(\"canvas_input0\")){\
		3423	var t = 0;\
		3424	while(document.getElementById(\"canvas_input\"+t)){\
		3425	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3426	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3427	p++;\
		3428	};\
		3429	t++;\
		3430	};\
		3431	};\
		3432	if( typeof userdraw_text != 'undefined' ){\
		3433	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3434	}\
		3435	else\
		3436	{\
		3437	return reply +\"\\n\"+input_reply;\
		3438	}\
		3439	}\
		3440	else\
		3441	{\
		3442	if( typeof userdraw_text != 'undefined' ){\
		3443	return reply +\"\\n\"+userdraw_text;\
		3444	}\
		3445	else\
		3446	{\
		3447	return reply;\
		3448	}\
		3449	};\
		3450	};\
		3451	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3452	<!-- end function 6 read_canvas() -->");
7614	schaersvoo	3453	break;
		3454	case 7: fprintf(js_include_file,"\
7653	schaersvoo	3455	\n<!-- begin function 7 read_canvas() -->\n\
7614	schaersvoo	3456	function read_canvas(){\
		3457	var reply = new Array();\
		3458	var p = 0;\
		3459	while(userdraw_x[p]){\
		3460	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		3461	p++;\
		3462	};\
		3463	if(p == 0){alert(\"nothing drawn...\");return;};\
		3464	if( document.getElementById(\"canvas_input0\") ){\
		3465	var p = 0;var input_reply = new Array();\
		3466	if( document.getElementById(\"canvas_input0\")){\
		3467	var t = 0;\
		3468	while(document.getElementById(\"canvas_input\"+t)){\
		3469	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3470	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3471	p++;\
		3472	};\
		3473	t++;\
		3474	};\
		3475	};\
		3476	if( typeof userdraw_text != 'undefined' ){\
		3477	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3478	}\
		3479	else\
		3480	{\
		3481	return reply+\"\\n\"+input_reply;\
		3482	}\
		3483	};\
		3484	else\
		3485	{\
		3486	if( typeof userdraw_text != 'undefined' ){\
		3487	return reply+\"\\n\"+userdraw_text;\
		3488	}\
		3489	else\
		3490	{\
		3491	return reply;\
		3492	}\
		3493	};\
		3494	};\
		3495	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3496	<!-- end function 7 read_canvas() -->");
7614	schaersvoo	3497	break;
		3498	case 8: fprintf(js_include_file,"\
7653	schaersvoo	3499	\n<!-- begin function 8 read_canvas() -->\n\
7614	schaersvoo	3500	function read_canvas(){\
		3501	var reply = new Array();\
		3502	var p = 0;\
		3503	while(userdraw_x[p]){\
		3504	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]);\
		3505	p++;\
		3506	};\
		3507	if(p == 0){alert(\"nothing drawn...\");return;};\
		3508	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3509	var p = 0;var input_reply = new Array();\
		3510	if( document.getElementById(\"canvas_input0\")){\
		3511	var t = 0;\
		3512	while(document.getElementById(\"canvas_input\"+t)){\
		3513	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3514	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3515	p++;\
		3516	};\
		3517	t++;\
		3518	};\
		3519	};\
		3520	if( typeof userdraw_text != 'undefined' ){\
		3521	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3522	}\
		3523	else\
		3524	{\
		3525	return reply +\"\\n\"+input_reply;\
		3526	}\
		3527	}\
		3528	else\
		3529	{\
		3530	if( typeof userdraw_text != 'undefined' ){\
		3531	return reply +\"\\n\"+userdraw_text;\
		3532	}\
		3533	else\
		3534	{\
		3535	return reply;\
		3536	}\
		3537	};\
		3538	};\
		3539	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3540	<!-- end function 8 read_canvas() -->");
7614	schaersvoo	3541	break;
		3542	case 9: fprintf(js_include_file,"\
7653	schaersvoo	3543	\n<!-- begin function 9 read_canvas() -->\n\
7614	schaersvoo	3544	function read_canvas(){\
		3545	var reply = new Array();\
		3546	var p = 0;\
		3547	while(userdraw_x[p]){\
		3548	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		3549	p++;\
		3550	};\
		3551	if(p == 0){alert(\"nothing drawn...\");return;};\
		3552	if( document.getElementById(\"canvas_input0\") ){\
		3553	var p = 0;var input_reply = new Array();\
		3554	if( document.getElementById(\"canvas_input0\")){\
		3555	var t = 0;\
		3556	while(document.getElementById(\"canvas_input\"+t)){\
		3557	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3558	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3559	p++;\
		3560	};\
		3561	t++;\
		3562	};\
		3563	};\
		3564	if( typeof userdraw_text != 'undefined' ){\
		3565	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3566	}\
		3567	else\
		3568	{\
		3569	return reply +\"\\n\"+input_reply;\
		3570	}\
		3571	}\
		3572	else\
		3573	{\
		3574	if( typeof userdraw_text != 'undefined' ){\
		3575	return reply +\"\\n\"+userdraw_text;\
		3576	}\
		3577	else\
		3578	{\
		3579	return reply;\
		3580	}\
		3581	};\
		3582	};\
		3583	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3584	<!-- end function 9 read_canvas() -->");
7614	schaersvoo	3585	break;
		3586	case 10: fprintf(js_include_file,"\
7653	schaersvoo	3587	\n<!-- begin function 10 read_canvas() -->\n\
7614	schaersvoo	3588	function read_canvas(){\
		3589	var reply = new Array();\
		3590	var p = 0;\
		3591	while(userdraw_x[p]){\
		3592	reply[p] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + userdraw_radius[p];\
		3593	p++;\
		3594	};\
		3595	if(p == 0){alert(\"nothing drawn...\");return;};\
		3596	if( document.getElementById(\"canvas_input0\") ){\
		3597	var p = 0;var input_reply = new Array();\
		3598	if( document.getElementById(\"canvas_input0\")){\
		3599	var t = 0;\
		3600	while(document.getElementById(\"canvas_input\"+t)){\
		3601	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3602	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3603	p++;\
		3604	};\
		3605	t++;\
		3606	};\
		3607	};\
		3608	if( typeof userdraw_text != 'undefined' ){\
		3609	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3610	}\
		3611	else\
		3612	{\
		3613	return reply +\"\\n\"+input_reply;\
		3614	}\
		3615	}\
		3616	else\
		3617	{\
		3618	if( typeof userdraw_text != 'undefined' ){\
		3619	return reply +\"\\n\"+userdraw_text;\
		3620	}\
		3621	else\
		3622	{\
		3623	return reply;\
		3624	}\
		3625	};\
		3626	};\
		3627	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3628	<!-- end function 10 read_canvas() -->");
7614	schaersvoo	3629	break;
		3630	case 11: fprintf(js_include_file,"\
7653	schaersvoo	3631	\n<!-- begin function 11 read_canvas() -->\n\
7614	schaersvoo	3632	function read_canvas(){\
		3633	var reply = \"\";\
		3634	var p = 0;\
		3635	while(userdraw_x[p]){\
		3636	reply = reply + px2x(userdraw_x[p]) +\",\" + px2y(userdraw_y[p]) +\",\" + px2x(userdraw_x[p+1]) +\",\" + px2y(userdraw_y[p+1]) +\"\\n\" ;\
		3637	p = p+2;\
		3638	};\
		3639	if(p == 0){alert(\"nothing drawn...\");return;};\
		3640	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		3641	var p = 0;var input_reply = new Array();\
		3642	if( document.getElementById(\"canvas_input0\")){\
		3643	var t = 0;\
		3644	while(document.getElementById(\"canvas_input\"+t)){\
		3645	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3646	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3647	p++;\
		3648	};\
		3649	t++;\
		3650	};\
		3651	};\
		3652	if( typeof userdraw_text != 'undefined' ){\
		3653	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3654	}\
		3655	else\
		3656	{\
		3657	return reply +\"\\n\"+input_reply;\
		3658	}\
		3659	}\
		3660	else\
		3661	{\
		3662	if( typeof userdraw_text != 'undefined' ){\
		3663	return reply +\"\\n\"+userdraw_text;\
		3664	}\
		3665	else\
		3666	{\
		3667	return reply;\
		3668	}\
		3669	};\
		3670	};\
		3671	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3672	<!-- end function 11 read_canvas() -->");
7614	schaersvoo	3673	break;
		3674	case 12: fprintf(js_include_file,"\
7653	schaersvoo	3675	\n<!-- begin function 12 read_canvas() -->\n\
7614	schaersvoo	3676	function read_canvas(){\
		3677	var reply = \"\";\
		3678	var p = 0;\
		3679	for(p = 0; p< userdraw_x.lenght;p = p+2){\
		3680	if(userdraw_x[p] != null){\
		3681	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		3682	};\
		3683	};\
		3684	if(p == 0){alert(\"nothing drawn...\");return;};\
		3685	if( document.getElementById(\"canvas_input0\") ){\
		3686	var p = 0;var input_reply = new Array();\
		3687	if( document.getElementById(\"canvas_input0\")){\
		3688	var t = 0;\
		3689	while(document.getElementById(\"canvas_input\"+t)){\
		3690	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3691	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3692	p++;\
		3693	};\
		3694	t++;\
		3695	};\
		3696	};\
		3697	if( typeof userdraw_text != 'undefined' ){\
		3698	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3699	}\
		3700	else\
		3701	{\
		3702	return reply +\"\\n\"+input_reply;\
		3703	}\
		3704	}\
		3705	else\
		3706	{\
		3707	if( typeof userdraw_text != 'undefined' ){\
		3708	return reply +\"\\n\"+userdraw_text\
		3709	}\
		3710	else\
		3711	{\
		3712	return reply;\
		3713	}\
		3714	};\
		3715	};\
		3716	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3717	<!-- end function 12 read_canvas() -->");
7614	schaersvoo	3718	break;
		3719	case 13: fprintf(js_include_file,"\
7653	schaersvoo	3720	\n<!-- begin function 13 read_canvas() -->\n\
7614	schaersvoo	3721	function read_canvas(){\
		3722	var reply = new Array();\
		3723	var p = 0;var i = 0;\
		3724	while(userdraw_x[p]){\
		3725	reply[i] = px2x(userdraw_x[p]) +\":\" + px2y(userdraw_y[p]) +\":\" + px2x(userdraw_x[p+1]) +\":\" + px2y(userdraw_y[p+1]);\
		3726	p = p+2;i++;\
		3727	};\
		3728	if(p == 0){alert(\"nothing drawn...\");return;};\
		3729	if( document.getElementById(\"canvas_input0\") ){\
		3730	var p = 0;var input_reply = new Array();\
		3731	if( document.getElementById(\"canvas_input0\")){\
		3732	var t = 0;\
		3733	while(document.getElementById(\"canvas_input\"+t)){\
		3734	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3735	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3736	p++;\
		3737	};\
		3738	t++;\
		3739	};\
		3740	};\
		3741	if( typeof userdraw_text != 'undefined' ){\
		3742	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3743	}\
		3744	else\
		3745	{\
		3746	return reply +\"\\n\"+input_reply;\
		3747	}\
		3748	}\
		3749	else\
		3750	{\
		3751	if( typeof userdraw_text != 'undefined' ){\
		3752	return reply +\"\\n\"+userdraw_text\
		3753	}\
		3754	else\
		3755	{\
		3756	return reply;\
		3757	}\
		3758	};\
		3759	};\
		3760	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3761	<!-- end function 13 read_canvas() -->");
7614	schaersvoo	3762	break;
		3763	case 14: fprintf(js_include_file,"\
7653	schaersvoo	3764	\n<!-- begin function 14 read_canvas() -->\n\
7614	schaersvoo	3765	function read_canvas(){\
		3766	var reply = new Array();\
		3767	var p = 0;var i = 0;\
		3768	while(userdraw_x[p]){\
		3769	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		3770	p = p+2;i++;\
		3771	};\
		3772	if(p == 0){alert(\"nothing drawn...\");return;};\
		3773	if( document.getElementById(\"canvas_input0\") ){\
		3774	var p = 0;var input_reply = new Array();\
		3775	if( document.getElementById(\"canvas_input0\")){\
		3776	var t = 0;\
		3777	while(document.getElementById(\"canvas_input\"+t)){\
		3778	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3779	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3780	p++;\
		3781	};\
		3782	t++;\
		3783	};\
		3784	};\
		3785	if( typeof userdraw_text != 'undefined' ){\
		3786	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3787	}\
		3788	else\
		3789	{\
		3790	return reply +\"\\n\"+input_reply;\
		3791	}\
		3792	}\
		3793	else\
		3794	{\
		3795	if( typeof userdraw_text != 'undefined' ){\
		3796	return reply +\"\\n\"+userdraw_text;\
		3797	}\
		3798	else\
		3799	{\
		3800	return reply;\
		3801	}\
		3802	};\
		3803	};\
		3804	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3805	<!-- end function 14 read_canvas() -->");
7614	schaersvoo	3806	break;
		3807	case 15: fprintf(js_include_file,"\
7653	schaersvoo	3808	\n<!-- begin function 15 read_canvas() -->\n\
7614	schaersvoo	3809	function read_canvas(){\
		3810	var input_reply = new Array();\
		3811	var p = 0;\
		3812	if( document.getElementById(\"canvas_input0\")){\
		3813	var t = 0;\
		3814	while(document.getElementById(\"canvas_input\"+t)){\
		3815	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3816	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3817	p++;\
		3818	};\
		3819	t++;\
		3820	};\
		3821	};\
		3822	if( typeof userdraw_text != 'undefined' ){\
		3823	return input_reply +\"\\n\"+userdraw_text;\
		3824	}\
		3825	else\
		3826	{\
		3827	return input_reply;\
		3828	};\
		3829	};\
		3830	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3831	<!-- end function 15 read_canvas() -->");
7614	schaersvoo	3832	break;
		3833	case 16: fprintf(js_include_file,"\
7653	schaersvoo	3834	\n<!-- begin function 16 read_mathml() -->\n\
7614	schaersvoo	3835	function read_mathml(){\
		3836	var reply = new Array();\
		3837	var p = 0;\
		3838	if( document.getElementById(\"mathml0\")){\
		3839	while(document.getElementById(\"mathml\"+p)){\
		3840	reply[p] = document.getElementById(\"mathml\"+p).value;\
		3841	p++;\
		3842	};\
		3843	};\
		3844	return reply;\
		3845	};\
		3846	this.read_mathml = read_mathml;\n\
7653	schaersvoo	3847	<!-- end function 16 read_mathml() -->");
7614	schaersvoo	3848	break;
		3849	case 17: fprintf(js_include_file,"\
7653	schaersvoo	3850	\n<!-- begin function 17 read_canvas() -->\n\
7614	schaersvoo	3851	function read_canvas(){\
		3852	if( userdraw_text.length == 0){alert(\"no text typed...\");return;}\
		3853	return userdraw_text;\
		3854	};\
		3855	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3856	<!-- end function 17 read_canvas() -->");
7614	schaersvoo	3857	break;
		3858	case 18: fprintf(js_include_file,"\
7653	schaersvoo	3859	\n<!-- begin function 18 read_canvas() -->\n\
7614	schaersvoo	3860	function read_canvas(){\
		3861	var p = 0;\
		3862	var reply = new Array();\
		3863	var name;\
		3864	var t = true;\
		3865	while(t){\
		3866	try{ name = eval('clocks'+p);\
		3867	reply[p] = parseInt((name.H+name.M/60+name.S/3600)%%12)+\":\"+parseInt((name.M + name.S/60)%%60)+\":\"+(name.S)%%60;p++}catch(e){t=false;};\
		3868	};\
		3869	if( p == 0){alert(\"clock(s) not modified...\");return;}\
		3870	return reply;\
		3871	};\
		3872	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3873	<!-- end function 18 read_canvas() -->");
7614	schaersvoo	3874	break;
		3875	case 19: fprintf(js_include_file,"\
7653	schaersvoo	3876	\n<!-- begin function 19 read_canvas() -->\n\
7614	schaersvoo	3877	function read_canvas(){\
		3878	return reply[0];\
		3879	};\
		3880	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3881	<!-- end function 19 read_canvas() -->");
7614	schaersvoo	3882	case 20: fprintf(js_include_file,"\
7653	schaersvoo	3883	\n<!-- begin function 20 read_canvas() -->\n\
7614	schaersvoo	3884	function read_canvas(){\
		3885	var len = ext_drag_images.length;\
		3886	var reply = new Array(len);\
		3887	for(var p = 0 ; p < len ; p++){\
		3888	var img = ext_drag_images[p];\
		3889	reply[p] = px2x(img[6])+\":\"+px2y(img[7]);\
		3890	};\
		3891	return reply;\
		3892	};\
		3893	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3894	<!-- end function 20 read_canvas() -->");
7614	schaersvoo	3895	break;
		3896	case 21: fprintf(js_include_file,"\
7653	schaersvoo	3897	\n<!-- begin function 21 read_canvas() -->\n\
7614	schaersvoo	3898	function read_canvas(){\
		3899	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		3900	var reply_coord = new Array();var p = 0;\
		3901	while(userdraw_x[p]){\
		3902	reply_coord[p] = \"(\"+px2x(userdraw_x[p])+\":\"+px2y(userdraw_y[p])+\")\";\
		3903	p++;\
		3904	};\
		3905	if(p == 0){alert(\"nothing drawn...\");return;};\
		3906	if( document.getElementById(\"canvas_input0\") ){\
		3907	var p = 0;var input_reply = new Array();\
		3908	if( document.getElementById(\"canvas_input0\")){\
		3909	var t = 0;\
		3910	while(document.getElementById(\"canvas_input\"+t)){\
		3911	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3912	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3913	p++;\
		3914	};\
		3915	t++;\
		3916	};\
		3917	};\
		3918	if( typeof userdraw_text != 'undefined' ){\
		3919	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3920	}\
		3921	else\
		3922	{\
		3923	return reply_coord+\"\\n\"+input_reply;\
		3924	}\
		3925	}\
		3926	else\
		3927	{\
		3928	if( typeof userdraw_text != 'undefined' ){\
		3929	return reply_coord+\"\\n\"+userdraw_text;\
		3930	}\
		3931	else\
		3932	{\
		3933	return reply_coord;\
		3934	};\
		3935	};\
		3936	};\
		3937	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3938	<!-- end function 21 read_canvas() -->");
7614	schaersvoo	3939	break;
		3940	case 22: fprintf(js_include_file,"\
7653	schaersvoo	3941	\n<!-- begin function 22 read_canvas() -->\n\
7614	schaersvoo	3942	function read_canvas(){\
		3943	var reply = new Array();\
		3944	var p = 0;\
		3945	var idx = 0;\
		3946	while(userdraw_x[p]){\
		3947	reply[idx] = px2x(userdraw_x[p]);\
		3948	idx++;\
		3949	reply[idx] = px2y(userdraw_y[p]);\
		3950	idx++;p++;\
		3951	};\
		3952	if(p == 0){alert(\"nothing drawn...\");return;};\
		3953	if( document.getElementById(\"canvas_input0\") ){\
		3954	var p = 0;var input_reply = new Array();\
		3955	if( document.getElementById(\"canvas_input0\")){\
		3956	var t = 0;\
		3957	while(document.getElementById(\"canvas_input\"+t)){\
		3958	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		3959	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		3960	p++;\
		3961	};\
		3962	t++;\
		3963	};\
		3964	};\
		3965	if( typeof userdraw_text != 'undefined' ){\
		3966	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		3967	}\
		3968	else\
		3969	{\
		3970	return reply +\"\\n\"+input_reply;\
		3971	}\
		3972	}\
		3973	else\
		3974	{\
		3975	if( typeof userdraw_text != 'undefined' ){\
		3976	return reply +\"\\n\"+userdraw_text;\
		3977	}\
		3978	else\
		3979	{\
		3980	return reply;\
		3981	}\
		3982	};\
		3983	};\
		3984	this.read_canvas = read_canvas;\n\
7653	schaersvoo	3985	<!-- end function 22 read_canvas() -->");
7614	schaersvoo	3986	break;
7782	schaersvoo	3987	case 23: fprintf(js_include_file,"\
		3988	\n<!-- begin function 23 read_canvas() default 5 px marge -->\n\
		3989	function read_canvas(){\
		3990	if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
		3991	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		3992	var lu = userdraw_x.length;\
		3993	if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
		3994	var marge = 5;\
		3995	reply_x[p] = px2x(userdraw_x[0]);reply_y[p] = px2y(userdraw_y[0]);p++;\
		3996	for(var i = 0; i < lu - 1 ; i++ ){\
		3997	if( (userdraw_x[i] < (userdraw_x[i+1] + marge)) && (userdraw_x[i] > (userdraw_x[i+1] - marge)) ){\
		3998	if( (userdraw_y[i] < (userdraw_y[i+1] + marge)) && (userdraw_y[i] > (userdraw_y[i+1] - marge)) ){\
		3999	reply_x[p] = px2x(userdraw_x[i]);reply_y[p] = px2y(userdraw_y[i]);\
		4000	if( isNaN(reply_x[p]) \|\| isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
		4001	p++;\
		4002	};\
		4003	};\
		4004	};\
		4005	if( document.getElementById(\"canvas_input0\")){\
		4006	var p = 0;var input_reply = new Array();\
		4007	if( document.getElementById(\"canvas_input0\")){\
		4008	var t = 0;\
		4009	while(document.getElementById(\"canvas_input\"+t)){\
		4010	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		4011	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		4012	p++;\
		4013	};\
		4014	t++;\
		4015	};\
		4016	};\
		4017	if( typeof userdraw_text != 'undefined' ){\
		4018	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		4019	}\
		4020	else\
		4021	{\
		4022	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		4023	}\
		4024	}\
		4025	else\
		4026	{\
		4027	if( typeof userdraw_text != 'undefined' ){\
		4028	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		4029	}\
		4030	else\
		4031	{\
		4032	return reply_x+\"\\n\"+reply_y;\
		4033	};\
		4034	};\
		4035	};\
		4036	this.read_canvas = read_canvas;\n\
		4037	<!-- end function 23 read_canvas() -->");
		4038	break;
7614	schaersvoo	4039
		4040	default: canvas_error("hmmm unknown replyformat...");break;
		4041	}
		4042	return;
		4043	}
		4044
		4045
		4046	/*
		4047	add drawfunction :
		4048	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		4049	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		4050	- grid / mathml
		4051	- will not scale or zoom in
		4052	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
		4053	- is printed directly into 'js_include_file'
		4054	*/
		4055
		4056	void add_javascript_functions(int js_functions[],int canvas_root_id){
		4057	int i;
		4058	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
		4059	if( js_functions[i] == 1){
		4060	switch(i){
		4061	case DRAG_EXTERNAL_IMAGE:
		4062	fprintf(js_include_file,"\n<!-- drag external images --->\n\
7653	schaersvoo	4063	var external_canvas = create_canvas%d(7,xsize,ysize);\
		4064	var external_ctx = external_canvas.getContext(\"2d\");\
		4065	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		4066	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		4067	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		4068	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		4069	var selected_image = null;\
		4070	var ext_image_cnt = 0;\
		4071	var ext_drag_images = new Array();\
		4072	function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,draggable){\
		4073	ext_image_cnt = idx;\
		4074	var image = new Image();\
		4075	image.src = URL;\
		4076	image.onload = function(){\
		4077	if( x0 < 1 ){ x0 = 0; };if( y0 < 1 ){ y0 = 0; };if( sx < 1 ){ sx = 0; };if( sy < 1 ){ sy = 0; };\
		4078	if( width < 1 ){ width = image.width; };if( height < 1 ){ height = image.height; };\
		4079	if( swidth < 1 ){ swidth = image.width; };if( sheight < 1 ){ sheight = image.height; };\
		4080	img = new Array(10);\
		4081	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
		4082	img[6] = x0;img[7] = y0;img[8] = width;img[9] = height;\
		4083	ext_drag_images[idx] = img;\
		4084	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4085	};\
		4086	};\
		4087	function dragstop(evt){\
		4088	selected_image = null;return;\
		4089	};\
		4090	function dragxy(evt){\
		4091	if( selected_image != null ){\
		4092	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4093	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4094	var s_img = ext_drag_images[selected_image];\
		4095	s_img[6] = evt.clientX - external_canvas_rect.left + xoff;\
		4096	s_img[7] = evt.clientY - external_canvas_rect.top + yoff;\
		4097	ext_drag_images[selected_image] = s_img;\
		4098	external_ctx.clearRect(0,0,xsize,ysize);\
		4099	for(var i = 0; i <= ext_image_cnt ; i++){\
		4100	var img = ext_drag_images[i];\
		4101	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		4102	};\
		4103	};\
		4104	};\
		4105	function setxy(evt){\
		4106	if( ! selected_image && evt.which == 1 ){\
		4107	var xoff = (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);\
		4108	var yoff = (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);\
		4109	var xm = evt.clientX - external_canvas_rect.left + xoff;\
		4110	var ym = evt.clientY - external_canvas_rect.top + yoff;\
		4111	for(var p = 0 ; p <= ext_image_cnt ; p++){\
		4112	var img = ext_drag_images[p];\
		4113	if( img[0] == 1 ){\
		4114	var w = img.width;\
		4115	var h = img.height;\
		4116	if( xm > img[6] && xm < img[6] + img[4]){\
		4117	if( ym > img[7] && ym < img[7] + img[5]){\
		4118	img[6] = xm;\
		4119	img[7] = ym;\
		4120	ext_drag_images[p] = img;\
		4121	selected_image = p;\
		4122	dragxy(evt);\
		4123	};\
		4124	};\
		4125	};\
		4126	};\
		4127	}\
		4128	else\
		4129	{\
		4130	selected_image = null;\
		4131	};\
7614	schaersvoo	4132	};",canvas_root_id);
		4133	break;
		4134
		4135	case DRAW_EXTERNAL_IMAGE:
		4136	fprintf(js_include_file,"\n<!-- draw external images -->\n\
		4137	draw_external_image = function(URL,sx,sy,swidth,sheight,x0,y0,width,height,draggable){\
		4138	var image = new Image();\
		4139	image.src = URL;\
		4140	var canvas_bg_div = document.getElementById(\"canvas_div%d\");\
		4141	image.onload = function(){\
		4142	if( x0 < 1 ){ x0 = 0; };\
		4143	if( y0 < 1 ){ y0 = 0; };\
		4144	if( sx < 1 ){ sx = 0; };\
		4145	if( sy < 1 ){ sy = 0; };\
		4146	if( width < 1 ){ width = image.width;};\
		4147	if( height < 1 ){ height = image.height;};\
		4148	if( swidth < 1 ){ swidth = image.width;};\
		4149	if( sheight < 1 ){ sheight = image.height;};\
		4150	var ml = x0 - sx;\
		4151	var mh = y0 - sy;\
		4152	canvas_bg_div.style.backgroundPosition= \"left \"+ml+\"px top \"+mh+\"px\";\
		4153	canvas_bg_div.style.backgroundSize = width+\"px \"+height+\"px\";\
		4154	canvas_bg_div.style.backgroundRepeat = \"no-repeat\";\
		4155	canvas_bg_div.style.backgroundPosition= sx+\"px \"+sy+\"px\";\
		4156	canvas_bg_div.style.backgroundImage = \"url(\" + URL + \")\";\
		4157	};\
7653	schaersvoo	4158	};",canvas_root_id);
7614	schaersvoo	4159	break;
		4160
		4161	case DRAW_ZOOM_BUTTONS: /* 6 rectangles 15x15 px forbidden zone for drawing : y < ysize - 15*/
		4162	fprintf(js_include_file,"\n<!-- draw zoom buttons -->\n\
		4163	draw_zoom_buttons = function(canvas_type,color,opacity){\
		4164	var obj;\
		4165	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4166	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4167	}\
		4168	else\
		4169	{\
		4170	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4171	};\
		4172	var ctx = obj.getContext(\"2d\");\
		4173	ctx.font =\"18px Ariel\";\
		4174	ctx.textAlign = \"right\";\
		4175	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4176	ctx.fillText(\"+\",xsize,ysize);\
		4177	ctx.fillText(\"\\u2212\",xsize - 15,ysize);\
		4178	ctx.fillText(\"\\u2192\",xsize - 30,ysize-2);\
		4179	ctx.fillText(\"\\u2190\",xsize - 45,ysize-2);\
		4180	ctx.fillText(\"\\u2191\",xsize - 60,ysize-2);\
		4181	ctx.fillText(\"\\u2193\",xsize - 75,ysize-2);\
		4182	ctx.fillText(\"\\u00D7\",xsize - 90,ysize-2);\
		4183	ctx.stroke();\
7653	schaersvoo	4184	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4185
		4186	break;
		4187	case DRAW_GRIDFILL:/* not used for userdraw */
		4188	fprintf(js_include_file,"\n<!-- draw gridfill -->\n\
		4189	draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize){\
		4190	var obj;\
		4191	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4192	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4193	}\
		4194	else\
		4195	{\
		4196	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4197	};\
		4198	var ctx = obj.getContext(\"2d\");\
		4199	var x,y;\
		4200	ctx.save();\
		4201	ctx.strokeStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
7645	schaersvoo	4202	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4203	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4204	ctx.moveTo(x,y0);\
		4205	ctx.lineTo(x,ysize);\
		4206	};\
7645	schaersvoo	4207	for( y = y0 ; y < ysize+dy; y = y + dy ){\
7614	schaersvoo	4208	ctx.moveTo(x0,y);\
		4209	ctx.lineTo(xsize,y);\
		4210	};\
		4211	ctx.stroke();\
		4212	ctx.restore();\
7653	schaersvoo	4213	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4214	break;
		4215
		4216	case DRAW_IMAGEFILL:/* not used for userdraw */
		4217	fprintf(js_include_file,"\n<!-- draw imagefill -->\n\
		4218	draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize){\
		4219	var obj;\
		4220	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4221	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4222	}\
		4223	else\
		4224	{\
		4225	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4226	};\
		4227	var ctx = obj.getContext(\"2d\");\
		4228	ctx.save();\
		4229	var img = new Image();\
		4230	img.src = URL;\
		4231	img.onload = function(){\
		4232	if( (img.width > xsize-x0) && (img.height > ysize-y0) ){\
		4233	ctx.drawImage(img,x0,y0,xsize,ysize);\
		4234	}\
		4235	else\
		4236	{\
		4237	var repeat = \"repeat\";\
		4238	if(img.width > xsize - x0){\
		4239	repeat = \"repeat-y\";\
		4240	}\
		4241	else\
		4242	{\
		4243	if( img.height > ysize -x0 ){\
		4244	repeat = \"repeat-x\";\
		4245	}\
		4246	}\
		4247	var pattern = ctx.createPattern(img,repeat);\
		4248	ctx.rect(x0,y0,xsize,ysize);\
		4249	ctx.fillStyle = pattern;\
		4250	}\
		4251	ctx.fill();\
		4252	};\
		4253	ctx.restore();\
		4254	return;\
7653	schaersvoo	4255	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4256	break;
		4257
		4258	case DRAW_DOTFILL:/* not used for userdraw */
		4259	fprintf(js_include_file,"\n<!-- draw dotfill -->\n\
		4260	draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize){\
		4261	var obj;\
		4262	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4263	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4264	}\
		4265	else\
		4266	{\
		4267	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4268	};\
		4269	var ctx = obj.getContext(\"2d\");\
		4270	var x,y;\
		4271	ctx.closePath();\
		4272	ctx.save();\
7645	schaersvoo	4273	snap_x = dx;snap_y = dy;\
7614	schaersvoo	4274	ctx.fillStyle=\"rgba(\"+color+\",\"+opacity+\")\";\
		4275	for( x = x0 ; x < xsize+dx ; x = x + dx ){\
		4276	for( y = y0 ; y < ysize+dy ; y = y + dy ){\
		4277	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		4278	ctx.closePath();\
		4279	}\
		4280	}\
		4281	ctx.fill();\
		4282	ctx.restore();\
7653	schaersvoo	4283	return;};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4284	break;
7645	schaersvoo	4285
7647	schaersvoo	4286	case DRAW_DIAMONDFILL:/* not used for userdraw */
7614	schaersvoo	4287	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
7647	schaersvoo	4288	draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
7614	schaersvoo	4289	var obj;\
		4290	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4291	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4292	}\
		4293	else\
		4294	{\
		4295	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4296	};\
		4297	var ctx = obj.getContext(\"2d\");\
		4298	var x;\
		4299	var y;\
		4300	ctx.save();\
		4301	ctx.lineWidth = linewidth;\
		4302	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4303	y = ysize;\
		4304	for( x = x0 ; x < xsize ; x = x + dx ){\
		4305	ctx.moveTo(x,y0);\
		4306	ctx.lineTo(xsize,y);\
		4307	y = y - dy;\
		4308	};\
		4309	y = y0;\
		4310	for( x = xsize ; x > 0 ; x = x - dx){\
		4311	ctx.moveTo(x,ysize);\
		4312	ctx.lineTo(x0,y);\
		4313	y = y + dy;\
		4314	};\
		4315	x = x0;\
		4316	for( y = y0 ; y < ysize ; y = y + dy ){\
		4317	ctx.moveTo(xsize,y);\
		4318	ctx.lineTo(x,ysize);\
		4319	x = x + dx;\
		4320	};\
		4321	x = xsize;\
		4322	for( y = ysize ; y > y0 ; y = y - dy ){\
		4323	ctx.moveTo(x,y0);\
		4324	ctx.lineTo(x0,y);\
		4325	x = x - dx;\
		4326	};\
		4327	ctx.stroke();\
		4328	ctx.restore();\
		4329	return;\
7653	schaersvoo	4330	}",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4331	break;
7647	schaersvoo	4332
		4333	case DRAW_HATCHFILL:/* not used for userdraw */
		4334	fprintf(js_include_file,"\n<!-- draw hatch fill -->\n\
		4335	draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,stroke_color,stroke_opacity,xsize,ysize){\
		4336	var obj;\
		4337	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4338	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4339	}\
		4340	else\
		4341	{\
		4342	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4343	};\
		4344	var ctx = obj.getContext(\"2d\");\
		4345	var x;\
		4346	var y;\
		4347	ctx.save();\
		4348	ctx.lineWidth = linewidth;\
		4349	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4350	y = ysize;\
		4351	for( x = x0 ; x < xsize ; x = x + dx ){\
		4352	ctx.moveTo(x,y0);\
		4353	ctx.lineTo(xsize,y);\
		4354	y = y - dy;\
		4355	};\
		4356	y = y0;\
		4357	for( x = xsize ; x >= dx ; x = x - dx){\
		4358	ctx.moveTo(x,ysize);\
		4359	ctx.lineTo(x0,y);\
		4360	y = y + dy;\
		4361	};\
		4362	ctx.stroke();\
		4363	ctx.restore();\
		4364	return;\
7653	schaersvoo	4365	};",canvas_root_id,canvas_root_id,canvas_root_id);
7647	schaersvoo	4366	break;
7614	schaersvoo	4367	case DRAW_CIRCLES:/* used for userdraw */
		4368	fprintf(js_include_file,"\n<!-- draw circles -->\n\
		4369	draw_circles = function(ctx,x_points,y_points,radius,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4370	ctx.save();\
		4371	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4372	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4373	ctx.lineWidth = line_width;\
		4374	for(var p = 0 ; p < x_points.length ; p++ ){\
		4375	ctx.beginPath();\
		4376	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		4377	ctx.closePath();\
		4378	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4379	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4380	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4381	ctx.stroke();\
		4382	}\
		4383	ctx.restore();\
		4384	return;\
7653	schaersvoo	4385	};");
7614	schaersvoo	4386	break;
7663	schaersvoo	4387	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
		4388	fprintf(js_include_file,"\n<!-- draw polyline -->\n\
		4389	draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4390	ctx.save();\
		4391	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4392	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4393	ctx.lineWidth = line_width;\
		4394	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4395	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4396	ctx.clearRect(0,0,xsize,ysize);\
		4397	ctx.beginPath();\
		4398	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		4399	ctx.moveTo(x_points[p],y_points[p]);\
		4400	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4401	}\
		4402	ctx.closePath();\
		4403	ctx.stroke();\
		4404	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4405	for(var p = 0 ; p < x_points.length ; p++ ){\
		4406	ctx.beginPath();\
		4407	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		4408	ctx.closePath();ctx.fill();ctx.stroke();\
		4409	};\
		4410	ctx.restore();\
		4411	return;\
		4412	};");
		4413	break;
7614	schaersvoo	4414
		4415	case DRAW_SEGMENTS:/* used for userdraw */
		4416	fprintf(js_include_file,"\n<!-- draw segments -->\n\
		4417	draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4418	ctx.save();\
		4419	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4420	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4421	ctx.lineWidth = line_width;\
		4422	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4423	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4424	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4425	ctx.beginPath();\
		4426	ctx.moveTo(x_points[p],y_points[p]);\
		4427	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		4428	ctx.closePath();\
		4429	ctx.stroke();\
		4430	}\
		4431	ctx.restore();\
		4432	return;\
		4433	};");
		4434	break;
		4435
		4436	case DRAW_LINES:/* used for userdraw */
		4437	fprintf(js_include_file,"\n<!-- draw lines -->\n\
		4438	function calc_line(x1,x2,y1,y2){\
		4439	var marge = 2;\
		4440	if(x1 < x2+marge && x1>x2-marge){\
		4441	return [x1,0,x1,ysize];\
		4442	};\
		4443	if(y1 < y2+marge && y1>y2-marge){\
		4444	return [0,y1,xsize,y1];\
		4445	};\
		4446	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		4447	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		4448	return [0,Y1,xsize,Y2];\
		4449	};\
		4450	draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4451	ctx.save();\
		4452	var line = new Array(4);\
		4453	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4454	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4455	ctx.lineWidth = line_width;\
		4456	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4457	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4458	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		4459	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		4460	ctx.beginPath();\
		4461	ctx.moveTo(line[0],line[1]);\
		4462	ctx.lineTo(line[2],line[3]);\
		4463	ctx.closePath();\
		4464	ctx.stroke();\
		4465	}\
		4466	ctx.restore();\
		4467	return;\
		4468	};");
		4469	break;
		4470
		4471	case DRAW_CROSSHAIRS:/* used for userdraw */
		4472	fprintf(js_include_file,"\n<!-- draw crosshairs -->\n\
		4473	draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
		4474	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4475	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4476	ctx.lineWidth = line_width;\
		4477	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4478	var x1,x2,y1,y2;\
		4479	for(var p = 0 ; p < x_points.length ; p++ ){\
		4480	x1 = x_points[p] - crosshair_size;\
		4481	x2 = x_points[p] + crosshair_size;\
		4482	y1 = y_points[p] - crosshair_size;\
		4483	y2 = y_points[p] + crosshair_size;\
		4484	ctx.beginPath();\
		4485	ctx.moveTo(x1,y1);\
		4486	ctx.lineTo(x2,y2);\
		4487	ctx.closePath();\
		4488	ctx.stroke();\
		4489	ctx.beginPath();\
		4490	ctx.moveTo(x2,y1);\
		4491	ctx.lineTo(x1,y2);\
		4492	ctx.closePath();\
		4493	ctx.stroke();\
		4494	}\
		4495	ctx.restore();\
		4496	return;\
7653	schaersvoo	4497	};");
7614	schaersvoo	4498	break;
		4499
		4500	case DRAW_RECTS:/* used for userdraw */
		4501	fprintf(js_include_file,"\n<!-- draw rects -->\n\
		4502	draw_rects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_translate,vector){\
		4503	ctx.save();\
		4504	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4505	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4506	ctx.lineWidth = line_width;\
		4507	ctx.strokeStyle = \"rgba('+stroke_color+','+stroke_opacity+')\";\
		4508	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
		4509	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		4510	ctx.beginPath();\
		4511	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		4512	ctx.closePath();\
		4513	if(use_filled == 1 ){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4514	ctx.stroke();\
		4515	};\
		4516	ctx.restore();\
		4517	return;\
7653	schaersvoo	4518	};");
7614	schaersvoo	4519	break;
		4520
		4521	case DRAW_ROUNDRECTS:/* used for userdraw */
		4522	fprintf(js_include_file,"\n<!-- draw round rects -->\n\
		4523	draw_roundrects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		4524	ctx.save();\
		4525	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4526	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4527	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4528	var x,y,w,h,r;\
		4529	for(var p = 0; p < x_points.length; p = p+2){\
		4530	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);\
		4531	ctx.beginPath();ctx.moveTo(x + r, y);\
		4532	ctx.lineTo(x + w - r, y);\
		4533	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		4534	ctx.lineTo(x + w, y + h - r);\
		4535	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		4536	ctx.lineTo(x + r, y + h);\
		4537	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		4538	ctx.lineTo(x, y + r);\
		4539	ctx.quadraticCurveTo(x, y, x + r, y);\
		4540	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		4541	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4542	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();};\
		4543	ctx.stroke();\
		4544	}\
		4545	ctx.restore();\
7653	schaersvoo	4546	};");
7614	schaersvoo	4547	break;
		4548
		4549	case DRAW_ELLIPSES:/* not used for userdraw */
		4550	fprintf(js_include_file,"\n<!-- draw ellipses -->\n\
		4551	draw_ellipses = function(canvas_type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		4552	var obj;\
		4553	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4554	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4555	}\
		4556	else\
		4557	{\
		4558	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4559	};\
		4560	var ctx = obj.getContext(\"2d\");\
		4561	ctx.save();\
		4562	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4563	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4564	var cx,cy,ry,rx;\
		4565	ctx.lineWidth = line_width;\
		4566	if( use_filled == 1 ){ctx.fillStyle =\"rgba(\"+fill_color+\",\"+fill_opacity+\")\";};\
		4567	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4568	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4569	for(var p=0;p< x_points.length;p = p+2){\
		4570	ctx.beginPath();\
		4571	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		4572	ctx.translate(cx - rx, cy - ry);\
		4573	ctx.scale(rx, ry);\
		4574	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
		4575	if( use_filled == 1 ){ctx.fill();}\
		4576	ctx.stroke();\
		4577	};\
		4578	ctx.restore();\
7653	schaersvoo	4579	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	4580	break;
		4581
		4582	case DRAW_PATHS: /* used for userdraw */
		4583	fprintf(js_include_file,"\n<!-- draw paths -->\n\
		4584	draw_paths = function(ctx,x_points,y_points,line_width,closed_path,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		4585	ctx.save();\
		4586	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4587	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4588	ctx.lineWidth = line_width;\
		4589	ctx.lineJoin = \"round\";\
		4590	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4591	ctx.beginPath();\
		4592	ctx.moveTo(x_points[0],y_points[0]);\
		4593	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		4594	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		4595	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4596	if(use_filled == 1){ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";ctx.fill();}\
		4597	ctx.stroke();\
		4598	ctx.restore();\
		4599	return;\
		4600	};");
		4601
		4602	break;
		4603	case DRAW_ARROWS:/* used for userdraw */
		4604	fprintf(js_include_file,"\n<!-- draw arrows -->\n\
		4605	draw_arrows = function(ctx,x_points,y_points,arrow_head,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,type,use_rotate,angle,use_translate,vector){\
		4606	ctx.save();\
		4607	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		4608	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		4609	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4610	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4611	ctx.lineWidth = line_width;\
		4612	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4613	ctx.lineCap = \"round\";\
		4614	ctx.save();\
		4615	var x1,y1,x2,y2,dx,dy,len;\
		4616	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
		4617	ctx.restore();ctx.save();\
		4618	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		4619	len = Math.sqrt(dxdx+dydy);\
		4620	ctx.translate(x2,y2);\
		4621	ctx.rotate(Math.atan2(dy,dx));\
		4622	ctx.lineCap = \"round\";\
		4623	ctx.beginPath();\
		4624	ctx.moveTo(0,0);\
		4625	ctx.lineTo(-len,0);\
		4626	ctx.closePath();\
		4627	ctx.stroke();\
		4628	ctx.beginPath();\
		4629	ctx.moveTo(0,0);\
		4630	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4631	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4632	ctx.closePath();\
		4633	ctx.fill();\
		4634	if( type == 2 ){\
		4635	ctx.restore();\
		4636	ctx.save();\
		4637	ctx.translate(x1,y1);\
		4638	ctx.rotate(Math.atan2(-dy,-dx));\
		4639	ctx.beginPath();\
		4640	ctx.moveTo(0,0);\
		4641	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		4642	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		4643	ctx.closePath();\
		4644	ctx.stroke();\
		4645	ctx.fill();\
		4646	}\
		4647	}\
		4648	ctx.restore();\
		4649	return;\
7653	schaersvoo	4650	};");
7614	schaersvoo	4651	break;
		4652
		4653	case DRAW_VIDEO:/* not used for userdraw */
		4654	fprintf(js_include_file,"\n<!-- draw video -->\n\
		4655	draw_video = function(canvas_root_id,x,y,w,h,URL){\
		4656	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4657	var video_div = document.createElement(\"div\");\
		4658	canvas_div.appendChild(video_div);\
		4659	video_div.style.position = \"absolute\";\
		4660	video_div.style.left = x+\"px\";\
		4661	video_div.style.top = y+\"px\";\
		4662	video_div.style.width = w+\"px\";\
		4663	video_div.style.height = h+\"px\";\
		4664	var video = document.createElement(\"video\");\
		4665	video_div.appendChild(video);\
		4666	video.style.width = w+\"px\";\
		4667	video.style.height = h+\"px\";\
		4668	video.autobuffer = true;\
		4669	video.controls = true;video.autoplay = false;\
		4670	var src = document.createElement(\"source\");\
		4671	src.type = \"video/mp4\";\
		4672	src.src = URL;\
		4673	video.appendChild(src);\
		4674	video.load();\
		4675	return;\
7653	schaersvoo	4676	};");
7614	schaersvoo	4677	break;
		4678
		4679	case DRAW_AUDIO:/* not used for userdraw */
		4680	fprintf(js_include_file,"\n<!-- draw audio -->\n\
		4681	draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
		4682	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4683	var audio_div = document.createElement(\"div\");\
		4684	canvas_div.appendChild(audio_div);\
		4685	audio_div.style.position = \"absolute\";\
		4686	audio_div.style.left = x+\"px\";\
		4687	audio_div.style.top = y+\"px\";\
		4688	audio_div.style.width = w+\"px\";\
		4689	audio_div.style.height = h+\"px\";\
		4690	var audio = document.createElement(\"audio\");\
		4691	audio_div.appendChild(audio);\
		4692	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		4693	audio.autobuffer = true;\
		4694	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;}\
		4695	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;}\
		4696	var src1 = document.createElement(\"source\");\
		4697	src1.type = \"audio/ogg\";\
		4698	src1.src = URL1;\
		4699	audio.appendChild(src1);\
		4700	var src2 = document.createElement(\"source\");\
		4701	src2.type = \"audio/mpeg\";\
		4702	src2.src = URL2;\
		4703	audio.appendChild(src2);\
		4704	audio.load();\
		4705	return;\
7653	schaersvoo	4706	};");
7614	schaersvoo	4707	break;
		4708
		4709	case DRAW_HTTP:/* not used for userdraw */
		4710	fprintf(js_include_file,"\n<!-- draw http -->\n\
		4711	draw_http = function(canvas_root_id,x,y,w,h,URL){\
		4712	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4713	var http_div = document.createElement(\"div\");\
		4714	var iframe = document.createElement(\"iframe\");\
		4715	canvas_div.appendChild(http_div);\
		4716	http_div.appendChild(iframe);\
		4717	iframe.src = URL;\
		4718	iframe.setAttribute(\"width\",w);\
		4719	iframe.setAttribute(\"height\",h);\
		4720	return;\
7653	schaersvoo	4721	};");
7614	schaersvoo	4722	break;
		4723
		4724	case DRAW_XML:
		4725	fprintf(js_include_file,"\n<!-- draw xml -->\n\
		4726	draw_xml = function(canvas_root_id,x,y,w,h,mathml,onclick){\
		4727	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		4728	var xml_div = document.createElement(\"div\");\
		4729	canvas_div.appendChild(xml_div);\
		4730	xml_div.innerHTML = mathml;\
		4731	if(onclick != 0){\
		4732	xml_div.onclick = function(){\
		4733	reply[0] = onclick;\
		4734	alert(\"send \"+onclick+\" ?\");\
		4735	};\
		4736	};\
		4737	xml_div.style.position = \"absolute\";\
		4738	xml_div.style.left = x+\"px\";\
		4739	xml_div.style.top = y+\"px\";\
		4740	xml_div.style.width = w+\"px\";\
		4741	xml_div.style.height = h+\"px\";\
		4742	return;\
7653	schaersvoo	4743	};"
7614	schaersvoo	4744	);
		4745	break;
7654	schaersvoo	4746	case DRAW_SGRAPH:
		4747	/*
		4748	xstart = given
		4749	ystart = given
		4750	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		4751	*/
		4752	fprintf(js_include_file,"\n<!-- draw sgraph -->\n\
7658	schaersvoo	4753	draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
		4754	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);};\
		4755	var ctx = obj.getContext(\"2d\");\
		4756	ctx.font = fontfamily;\
		4757	var minor_opacity = 0.8*opacity;\
		4758	ctx.clearRect(0,0,xsize,ysize);\
		4759	var d_x = 1.8*font_size;\
		4760	var d_y = ctx.measureText(\"+ymax+\").width;\
		4761	var dx = xsize / (xmax - xmin);\
		4762	var dy = ysize / (ymax - ymin);\
		4763	var zero_x = d_y + dx;\
		4764	var zero_y = ysize - dy - d_x;\
7659	schaersvoo	4765	var snor_x;\
7654	schaersvoo	4766	if( xstart != xmin){\
7658	schaersvoo	4767	snor_x = 0.1*xsize;\
		4768	}\
		4769	else\
		4770	{\
		4771	snor_x = 0;\
		4772	xstart = xmin;\
		4773	};\
		4774	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4775	ctx.lineWidth = 2;\
		4776	ctx.beginPath();\
		4777	ctx.moveTo(xsize,zero_y);\
		4778	ctx.lineTo(zero_x,zero_y);\
		4779	ctx.lineTo(zero_x,0);\
		4780	ctx.stroke();\
		4781	ctx.closePath();\
		4782	ctx.beginPath();\
		4783	ctx.moveTo(zero_x,zero_y);\
		4784	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		4785	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		4786	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		4787	ctx.lineTo(zero_x + snor_x,zero_y);\
		4788	ctx.stroke();\
		4789	ctx.closePath();\
		4790	ctx.beginPath();\
		4791	var num = xstart;\
7660	schaersvoo	4792	var flipflop = 1;\
7658	schaersvoo	4793	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
		4794	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7660	schaersvoo	4795	if( 0.5*ctx.measureText(num).width > step_x ){\
		4796	if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};\
		4797	};\
		4798	if( flipflop == 1){\
7658	schaersvoo	4799	ctx.fillText(num,x - 0.5*ctx.measureText(num).width,zero_y+font_size);\
		4800	}\
		4801	else\
		4802	{\
		4803	ctx.fillText(num,x - 0.5ctx.measureText(num).width,zero_y+2font_size);\
		4804	}\
		4805	num = num + xmajor;\
		4806	};\
		4807	ctx.stroke();\
		4808	ctx.closePath();\
		4809	ctx.lineWidth = 1;\
		4810	ctx.beginPath();\
		4811	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4812	ctx.moveTo(x,zero_y);\
		4813	ctx.lineTo(x,0);\
		4814	};\
		4815	ctx.stroke();\
		4816	ctx.closePath();\
		4817	if( xminor > 1){\
		4818	ctx.lineWidth = 0.5;\
		4819	ctx.beginPath();\
		4820	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4821	var minor_step_x = step_x / xminor;\
		4822	var nx;\
		4823	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		4824	num = 1;\
		4825	for(var p = 1 ; p < xminor ; p++){\
		4826	nx = x + num*minor_step_x;\
		4827	ctx.moveTo(nx,zero_y);\
		4828	ctx.lineTo(nx,0);\
		4829	num++;\
		4830	};\
		4831	};\
		4832	ctx.stroke();\
		4833	ctx.closePath();\
		4834	ctx.beginPath();\
		4835	ctx.lineWidth = 2;\
		4836	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4837	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		4838	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		4839	};\
		4840	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		4841	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		4842	};\
		4843	ctx.stroke();\
		4844	ctx.closePath();\
		4845	ctx.lineWidth = 0.5;\
		4846	};\
		4847	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		4848	if( ystart != ymin){\
		4849	snor_y = 0.1*ysize;\
		4850	}\
		4851	else\
		4852	{\
		4853	snor_y = 0;\
		4854	ystart = ymin;\
		4855	};\
		4856	ctx.lineWidth = 2;\
		4857	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4858	ctx.beginPath();\
		4859	ctx.moveTo(zero_x,zero_y);\
		4860	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		4861	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		4862	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		4863	ctx.lineTo(zero_x,zero_y - snor_y);\
		4864	ctx.stroke();\
		4865	ctx.closePath();\
		4866	ctx.beginPath();\
		4867	ctx.lineWidth = 1;\
		4868	num = ystart;\
		4869	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		4870	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		4871	ctx.moveTo(zero_x,y);\
		4872	ctx.lineTo(xsize,y);\
		4873	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		4874	num = num + ymajor;\
		4875	};\
		4876	ctx.stroke();\
		4877	ctx.closePath();\
		4878	if( yminor > 1){\
		4879	ctx.lineWidth = 0.5;\
		4880	ctx.beginPath();\
		4881	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		4882	var minor_step_y = step_y / yminor;\
		4883	var ny;\
		4884	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		4885	num = 1;\
		4886	for(var p = 1 ;p < yminor;p++){\
		4887	ny = y + num*minor_step_y;\
		4888	ctx.moveTo(zero_x,ny);\
		4889	ctx.lineTo(xsize,ny);\
		4890	num++;\
		4891	};\
		4892	};\
		4893	ctx.stroke();\
		4894	ctx.closePath();\
		4895	ctx.lineWidth = 2;\
		4896	ctx.beginPath();\
		4897	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		4898	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		4899	ctx.moveTo(zero_x,y);\
		4900	ctx.lineTo(zero_x+12,y);\
		4901	};\
		4902	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		4903	ctx.moveTo(zero_x,y);\
		4904	ctx.lineTo(zero_x+6,y);\
		4905	};\
		4906	ctx.stroke();\
		4907	ctx.closePath();\
		4908	};\
		4909	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
7654	schaersvoo	4910	if( typeof legend%d !== 'undefined' ){\
		4911	ctx.globalAlpha = 1.0;\
		4912	var y_offset = 2*font_size;\
		4913	var txt;var txt_size;\
		4914	var x_offset = xsize - 2*font_size;\
		4915	var l_length = legend%d.length;var barcolor = new Array();\
		4916	if( typeof legendcolors%d !== 'undefined' ){\
		4917	for(var p = 0 ; p < l_length ; p++){\
		4918	barcolor[p] = legendcolors%d[p];\
		4919	};\
		4920	}else{\
		4921	if( barcolor.length == 0 ){\
		4922	for(var p = 0 ; p < l_length ; p++){\
		4923	barcolor[p] = stroke_color;\
		4924	};\
		4925	};\
		4926	};\
		4927	for(var p = 0; p < l_length; p++){\
		4928	ctx.fillStyle = barcolor[p];\
		4929	txt = legend%d[p];\
		4930	txt_size = ctx.measureText(txt).width;\
		4931	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		4932	y_offset = parseInt(y_offset + 1.5*font_size);\
		4933	};\
		4934	};\
7660	schaersvoo	4935	if( typeof xaxislabel !== 'undefined' ){\
7658	schaersvoo	4936	ctx.fillStyle = \'#000000\';\
		4937	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		4938	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		4939	};\
7660	schaersvoo	4940	if( typeof yaxislabel !== 'undefined'){\
7658	schaersvoo	4941	ctx.save();\
		4942	ctx.fillStyle = \'#000000\';\
		4943	var txt_size = ctx.measureText(yaxislabel).width;\
		4944	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		4945	ctx.rotate(-0.5*Math.PI);\
		4946	ctx.fillText(yaxislabel,0,0);\
		4947	ctx.save();\
		4948	};\
7654	schaersvoo	4949	};\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);
		4950	break;
7614	schaersvoo	4951
		4952	case DRAW_GRID:/* not used for userdraw */
		4953	fprintf(js_include_file,"\n<!-- draw grid -->\n\
		4954	draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_translate,vector,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
		4955	var obj;\
		4956	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		4957	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		4958	}\
		4959	else\
		4960	{\
		4961	obj = create_canvas%d(canvas_type,xsize,ysize);\
		4962	};\
		4963	var ctx = obj.getContext(\"2d\");\
		4964	ctx.clearRect(0,0,xsize,ysize);\
		4965	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		4966	ctx.save();\
		4967	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		4968	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		4969	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		4970	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		4971	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		4972	ctx.font = font_family;\
		4973	var xstep = xsize*xmajor/(xmax - xmin);\
		4974	var ystep = ysize*ymajor/(ymax - ymin);\
		4975	var x2step = xstep / xminor;\
		4976	var y2step = ystep / yminor;\
7654	schaersvoo	4977	var zero_x;var zero_y;var f_x;var f_y;\
		4978	if(xmin < 0 ){zero_x = x2px(0);f_x = 1;}else{zero_x = x2px(xmin);f_x = -1;}\
		4979	if(ymin < 0 ){zero_y = y2px(0);f_y = 1;}else{zero_y = y2px(ymin);f_y = -1;}\
7614	schaersvoo	4980	ctx.beginPath();\
		4981	ctx.lineWidth = line_width;\
		4982	ctx.strokeStyle = stroke_color;\
		4983	for(var p = zero_x ; p < xsize; p = p + xstep){\
		4984	ctx.moveTo(p,0);\
		4985	ctx.lineTo(p,ysize);\
		4986	};\
		4987	for(var p = zero_x ; p > 0; p = p - xstep){\
		4988	ctx.moveTo(p,0);\
		4989	ctx.lineTo(p,ysize);\
		4990	};\
		4991	for(var p = zero_y ; p < ysize; p = p + ystep){\
		4992	ctx.moveTo(0,p);\
		4993	ctx.lineTo(xsize,p);\
		4994	};\
		4995	for(var p = zero_y ; p > 0; p = p - ystep){\
		4996	ctx.moveTo(0,p);\
		4997	ctx.lineTo(xsize,p);\
		4998	};\
		4999	if( typeof xaxislabel !== 'undefined' ){\
		5000	ctx.save();\
		5001	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		5002	var corr = ctx.measureText(xaxislabel).width;\
		5003	ctx.fillText(xaxislabel,xsize - 1.5corr,zero_y - tics_length - 0.4font_size);\
		5004	ctx.restore();\
		5005	};\
		5006	if( typeof yaxislabel !== 'undefined' ){\
		5007	ctx.save();\
		5008	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		5009	corr = ctx.measureText(yaxislabel).width;\
		5010	ctx.translate(zero_x+tics_length + font_size,corr+font_size);\
		5011	ctx.rotate(-0.5*Math.PI);\
		5012	ctx.fillText(yaxislabel,0,0);\
		5013	ctx.restore();\
		5014	};\
		5015	ctx.stroke();\
		5016	ctx.closePath();\
		5017	if( use_axis == 1 ){\
		5018	ctx.beginPath();\
		5019	ctx.strokeStyle = stroke_color;\
		5020	ctx.lineWidth = 0.6*line_width;\
		5021	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5022	ctx.moveTo(p,0);\
		5023	ctx.lineTo(p,ysize);\
		5024	};\
		5025	for(var p = zero_x ; p > 0; p = p - x2step){\
		5026	ctx.moveTo(p,0);\
		5027	ctx.lineTo(p,ysize);\
		5028	};\
		5029	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5030	ctx.moveTo(0,p);\
		5031	ctx.lineTo(xsize,p);\
		5032	};\
		5033	for(var p = zero_y ; p > 0; p = p - y2step){\
		5034	ctx.moveTo(0,p);\
		5035	ctx.lineTo(xsize,p);\
		5036	};\
		5037	ctx.stroke();\
		5038	ctx.closePath();\
		5039	ctx.beginPath();\
		5040	ctx.lineWidth = 2*line_width;\
		5041	ctx.strokeStyle = axis_color;\
		5042	ctx.moveTo(0,zero_y);\
		5043	ctx.lineTo(xsize,zero_y);\
		5044	ctx.moveTo(zero_x,0);\
		5045	ctx.lineTo(zero_x,ysize);\
		5046	ctx.stroke();\
		5047	ctx.closePath();\
		5048	ctx.lineWidth = line_width+0.5;\
		5049	ctx.beginPath();\
		5050	for(var p = zero_x ; p < xsize; p = p + xstep){\
		5051	ctx.moveTo(p,zero_y-tics_length);\
		5052	ctx.lineTo(p,zero_y+tics_length);\
		5053	};\
		5054	for(var p = zero_x ; p > 0; p = p - xstep){\
		5055	ctx.moveTo(p,zero_y-tics_length);\
		5056	ctx.lineTo(p,zero_y+tics_length);\
		5057	};\
		5058	for(var p = zero_y ; p < ysize; p = p + ystep){\
		5059	ctx.moveTo(zero_x-tics_length,p);\
		5060	ctx.lineTo(zero_x+tics_length,p);\
		5061	};\
		5062	for(var p = zero_y ; p > 0; p = p - ystep){\
		5063	ctx.moveTo(zero_x-tics_length,p);\
		5064	ctx.lineTo(zero_x+tics_length,p);\
		5065	};\
		5066	for(var p = zero_x ; p < xsize; p = p + x2step){\
		5067	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5068	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5069	};\
		5070	for(var p = zero_x ; p > 0; p = p - x2step){\
		5071	ctx.moveTo(p,zero_y-0.5*tics_length);\
		5072	ctx.lineTo(p,zero_y+0.5*tics_length);\
		5073	};\
		5074	for(var p = zero_y ; p < ysize; p = p + y2step){\
		5075	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5076	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5077	};\
		5078	for(var p = zero_y ; p > 0; p = p - y2step){\
		5079	ctx.moveTo(zero_x-0.5*tics_length,p);\
		5080	ctx.lineTo(zero_x+0.5*tics_length,p);\
		5081	};\
		5082	ctx.stroke();\
		5083	ctx.closePath();\
		5084	if( use_axis_numbering == 1 ){\
		5085	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
		5086	if( x_strings != null ){\
		5087	var f = 1.4;\
		5088	var len = x_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
		5089	for(var p = 0 ; p < len ; p = p+2){\
		5090	var x_nums = x2px(eval(x_strings[p]));\
		5091	var x_text = x_strings[p+1];\
		5092	corr = ctx.measureText(x_text).width;\
		5093	skip = 1.2*corr/xstep;\
		5094	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		5095	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		5096	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
		5097	}\
		5098	}\
		5099	else\
		5100	{\
7654	schaersvoo	5101	corr=0;skip = 1;cnt = px2x(zero_x);\
7614	schaersvoo	5102	prec = Math.log(precision)/(Math.log(10));\
7654	schaersvoo	5103	for( var p = zero_x ; p < xsize ; p = p+xstep){\
7614	schaersvoo	5104	if(skip == 0 ){\
		5105	disp_cnt = cnt.toFixed(prec);\
		5106	corr = ctx.measureText(disp_cnt).width;\
		5107	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5108	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5109	}\
		5110	else\
		5111	{\
		5112	skip--;\
		5113	};\
		5114	cnt = cnt + xmajor;\
		5115	};\
7654	schaersvoo	5116	cnt = px2x(zero_x);skip = 1;\
		5117	for( var p = zero_x ; p > 0 ; p = p-xstep){\
7614	schaersvoo	5118	if(skip == 0 ){\
		5119	disp_cnt = cnt.toFixed(prec);\
		5120	corr = ctx.measureText(disp_cnt).width;\
		5121	skip = parseInt(1.2*corr/xstep);\
7654	schaersvoo	5122	ctx.fillText(disp_cnt,p-0.5corr,parseInt(zero_y+(1.4f_x*font_size)));\
7614	schaersvoo	5123	}\
		5124	else\
		5125	{\
		5126	skip--;\
		5127	};\
		5128	cnt = cnt - xmajor;\
		5129	};\
		5130	};\
		5131	if( y_strings != null ){\
		5132	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
		5133	for(var p = 0 ; p < len ; p = p+2){\
		5134	var y_nums = y2px(eval(y_strings[p]));\
		5135	var y_text = y_strings[p+1];\
		5136	var f = 1.4;\
		5137	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		5138	if( corr > zero_x){corr = parseInt(zero_x+2); }\
		5139	ctx.fillText(y_text,zero_x - corr,y_nums);\
		5140	};\
		5141	}\
		5142	else\
		5143	{\
7654	schaersvoo	5144	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5145	for( var p = zero_y ; p < ysize ; p = p+ystep){\
7614	schaersvoo	5146	if(skip == 0 ){\
		5147	skip = parseInt(1.4*font_size/ystep);\
		5148	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5149	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5150	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5151	}\
		5152	else\
		5153	{\
		5154	skip--;\
		5155	};\
		5156	cnt = cnt - ymajor;\
		5157	}\
7654	schaersvoo	5158	corr = 0;cnt = px2y(zero_y);skip = 1;\
		5159	for( var p = zero_y ; p > 0 ; p = p-ystep){\
7614	schaersvoo	5160	if(skip == 0 ){\
		5161	skip = parseInt(1.4*font_size/ystep);\
		5162	disp_cnt = cnt.toFixed(prec);\
7654	schaersvoo	5163	if(f_y == 1){corr = 2 + tics_length + ctx.measureText(disp_cnt).width;}\
		5164	ctx.fillText(disp_cnt,parseInt(zero_x - corr),parseInt(p+(0.4*font_size)));\
7614	schaersvoo	5165	}\
		5166	else\
		5167	{\
		5168	skip--;\
		5169	};\
		5170	cnt = cnt + ymajor;\
		5171	}\
		5172	};\
		5173	};\
		5174	ctx.strokeStyle = stroke_color;\
		5175	ctx.lineWidth = 2;\
		5176	ctx.beginPath();\
		5177	ctx.rect(0,0,xsize,ysize);\
		5178	ctx.closePath();\
		5179	ctx.stroke();\
		5180	};\
		5181	if( typeof linegraph_0 !== 'undefined' ){\
		5182	ctx.restore();\
		5183	ctx.save();\
		5184	ctx.globalAlpha = 1.0;\
		5185	var i = 0;\
		5186	var line_name = eval('linegraph_'+i);\
		5187	while ( typeof line_name !== 'undefined' ){\
		5188	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		5189	ctx.lineWidth = parseInt(line_name[1]);\
		5190	if(line_name[2] == \"1\"){\
		5191	var d1 = parseInt(line_name[3]);\
		5192	var d2 = parseInt(line_name[4]);\
		5193	if(ctx.setLineDash){ ctx.setLineDash(d1,d2); } else { ctx.mozDash = [d1,d2];};\
		5194	}\
		5195	else\
		5196	{\
		5197	if(ctx.setLineDash){ctx.setLineDash = null;}\
		5198	if(ctx.mozDash){ctx.mozDash = null;}\
		5199	};\
		5200	var data_x = new Array();\
		5201	var data_y = new Array();\
		5202	var lb = line_name.length;\
		5203	var idx = 0;\
		5204	for( var p = 5 ; p < lb ; p = p + 2 ){\
		5205	data_x[idx] = x2px(line_name[p]);\
		5206	data_y[idx] = y2px(line_name[p+1]);\
		5207	idx++;\
		5208	};\
		5209	for( var p = 0; p < idx ; p++){\
		5210	ctx.beginPath();\
		5211	ctx.moveTo(data_x[p],data_y[p]);\
		5212	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		5213	ctx.stroke();\
		5214	ctx.closePath();\
		5215	};\
		5216	i++;\
		5217	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		5218	};\
		5219	};\
		5220	var barcolor = new Array();\
		5221	if( typeof barchart%d !== 'undefined' ){\
		5222	ctx.restore();\
		5223	ctx.save();\
		5224	ctx.globalAlpha = 1.0;\
		5225	var bar_x = new Array();\
		5226	var bar_y = new Array();\
		5227	var lb = barchart%d.length;\
		5228	var idx = 0;\
		5229	for( var p = 0 ; p < lb ; p = p + 3 ){\
		5230	bar_x[idx] = x2px(barchart%d[p]);\
		5231	bar_y[idx] = y2px(barchart%d[p+1]);\
		5232	barcolor[idx] = barchart%d[p+2];\
		5233	idx++;\
		5234	};\
		5235	var dx = parseInt(0.6*xstep);\
		5236	ctx.globalAlpha = fill_opacity;\
		5237	for( var p = 0; p < idx ; p++ ){\
		5238	ctx.beginPath();\
		5239	ctx.strokeStyle = barcolor[p];\
		5240	ctx.fillStyle = barcolor[p];\
		5241	ctx.rect(bar_x[p]-0.5*dx,bar_y[p],dx,zero_y - bar_y[p]);\
		5242	ctx.fill();\
		5243	ctx.stroke();\
		5244	ctx.closePath();\
		5245	};\
		5246	};\
		5247	if( typeof legend%d !== 'undefined' ){\
		5248	ctx.globalAlpha = 1.0;\
		5249	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		5250	var y_offset = 2*font_size;\
		5251	var txt;var txt_size;\
		5252	var x_offset = xsize - 2*font_size;\
		5253	var l_length = legend%d.length;\
		5254	if( typeof legendcolors%d !== 'undefined' ){\
		5255	for(var p = 0 ; p < l_length ; p++){\
		5256	barcolor[p] = legendcolors%d[p];\
		5257	};\
		5258	}else{\
		5259	if( barcolor.length == 0 ){\
		5260	for(var p = 0 ; p < l_length ; p++){\
		5261	barcolor[p] = stroke_color;\
		5262	};\
		5263	};\
		5264	};\
		5265	for(var p = 0; p < l_length; p++){\
		5266	ctx.fillStyle = barcolor[p];\
		5267	txt = legend%d[p];\
		5268	txt_size = ctx.measureText(txt).width;\
		5269	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		5270	y_offset = parseInt(y_offset + 1.5*font_size);\
		5271	};\
		5272	};\
		5273	ctx.restore();\
		5274	return;\
7653	schaersvoo	5275	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5276	break;
		5277
		5278	case DRAW_PIECHART:
		5279	fprintf(js_include_file,"\n<!-- draw piechars -->\n\
		5280	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,font_size,font_family){\
		5281	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5282	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5283	}\
		5284	else\
		5285	{\
		5286	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5287	};\
		5288	var ld = data_color_list.length;\
		5289	var sum = 0;\
		5290	var idx = 0;\
		5291	var colors = new Array();\
		5292	var data = new Array();\
		5293	for(var p = 0;p < ld; p = p + 2){\
		5294	data[idx] = parseFloat(data_color_list[p]);\
		5295	sum = sum + data[idx];\
		5296	colors[idx] = data_color_list[p+1];\
		5297	idx++;\
		5298	};\
		5299	var ctx = obj.getContext(\"2d\");\
		5300	ctx.save();\
		5301	var angle;\
		5302	var angle_end = 0;\
		5303	var offset = Math.PI / 2;\
		5304	ctx.globalAlpha = fill_opacity;\
		5305	for(var p=0; p < idx; p++){\
		5306	ctx.beginPath();\
		5307	ctx.fillStyle = colors[p];\
		5308	ctx.moveTo(x_center,y_center);\
		5309	angle = Math.PI * (2 * data[p] / sum);\
		5310	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		5311	ctx.lineTo(x_center, y_center);\
		5312	ctx.fill();\
		5313	ctx.closePath();\
		5314	angle_end = angle_end + angle;\
		5315	};\
		5316	if( typeof legend%d !== 'undefined' ){\
		5317	ctx.globalAlpha = 1.0;\
		5318	ctx.font = font_size+\"px \"+font_family;\
		5319	var y_offset = font_size; \
		5320	var x_offset = 0;\
		5321	var txt;var txt_size;\
		5322	for(var p = 0; p < idx; p++){\
		5323	ctx.fillStyle = colors[p];\
		5324	txt = legend%d[p];\
		5325	txt_size = ctx.measureText(txt).width;\
		5326	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
		5327	ctx.fillText(legend%d[p],x_center + radius - x_offset, y_center - radius + y_offset);\
		5328	y_offset = parseInt(y_offset + 1.5*font_size);\
		5329	};\
		5330	};\
		5331	ctx.restore();\
7653	schaersvoo	5332	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5333
		5334	break;
		5335	case DRAW_ARCS:
		5336	fprintf(js_include_file,"\n<!-- draw arcs -->\n\
		5337	draw_arc = function(canvas_type,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		5338	var obj;\
		5339	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5340	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5341	}\
		5342	else\
		5343	{\
		5344	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5345	};\
		5346	var ctx = obj.getContext(\"2d\");\
		5347	ctx.save();\
		5348	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
		5349	if( use_translate == 1 ){ctx.translate(vector[0],vector[1]);};\
		5350	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		5351	if(end < start){var tmp = end;end = start;start=tmp;};\
		5352	start=360-start;\
		5353	end=360-end;\
		5354	ctx.lineWidth = line_width;\
		5355	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5356	if( use_filled == 1 ){\
		5357	ctx.beginPath();\
		5358	ctx.fillStyle = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		5359	var x1 = xc + rMath.cos(Math.PIstart/180);\
		5360	var y1 = yc + rMath.sin(Math.PIstart/180);\
		5361	var x2 = xc + rMath.cos(Math.PIend/180);\
		5362	var y2 = yc + rMath.sin(Math.PIend/180);\
		5363	ctx.beginPath();\
		5364	ctx.moveTo(x1,y1);\
		5365	ctx.lineTo(xc,yc);\
		5366	ctx.moveTo(xc,yc);\
		5367	ctx.lineTo(x2,y2);\
		5368	ctx.closePath();\
		5369	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5370	ctx.fill();\
		5371	ctx.stroke();\
		5372	}\
		5373	else\
		5374	{\
		5375	ctx.beginPath();\
		5376	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		5377	ctx.stroke();\
		5378	ctx.closePath();\
		5379	}\
		5380	ctx.restore();\
7653	schaersvoo	5381	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5382
		5383	break;
		5384	case DRAW_TEXTS:
		5385	fprintf(js_include_file,"\n<!-- draw text -->\n\
		5386	draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_translate,vector){\
		5387	var obj;\
		5388	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5389	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5390	}\
		5391	else\
		5392	{\
		5393	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5394	};\
		5395	var ctx = obj.getContext(\"2d\");\
		5396	if(angle2 == 0 && angle != 0){\
		5397	ctx.save();\
		5398	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5399	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5400	};\
		5401	if( font_family.indexOf('px') != null ){\
		5402	ctx.font = font_family;\
		5403	}\
		5404	else\
		5405	{\
		5406	ctx.font = \"+font_size+'px '+font_family \";\
		5407	};\
		5408	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5409	if(angle2 != 0){\
		5410	ctx.save();\
		5411	ctx.translate(x,y);\
		5412	ctx.rotate((360-angle2)*(Math.PI / 180));\
		5413	ctx.fillText(text,0,0);\
		5414	ctx.restore();\
		5415	}else{ctx.fillText(text,x,y);};\
		5416	ctx.restore();\
		5417	return;\
7653	schaersvoo	5418	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5419
		5420	break;
		5421	case DRAW_CURVE:
		5422	fprintf(js_include_file,"\n<!-- draw curve -->\n\
		5423	draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_translate,vector){\
		5424	var obj;\
		5425	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5426	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5427	}\
		5428	else\
		5429	{\
		5430	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5431	};\
		5432	var ctx = obj.getContext(\"2d\");\
		5433	ctx.save();\
		5434	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5435	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5436	ctx.beginPath();ctx.lineWidth = line_width;\
		5437	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		5438	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5439	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		5440	for(var p = 1 ; p < x_points.length ; p++){\
		5441	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		5442	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		5443	}\
		5444	else\
		5445	{\
		5446	ctx.stroke();\
		5447	ctx.beginPath();\
		5448	p++;\
		5449	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		5450	};\
		5451	};\
		5452	ctx.stroke();\
		5453	ctx.restore();\
7653	schaersvoo	5454	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5455	break;
		5456
		5457	case DRAW_INPUTS:
		5458	fprintf(js_include_file,"\n<!-- draw input fields -->\n\
		5459	draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value){\
		5460	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5461	var input = document.createElement(\"input\");\
		5462	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5463	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5464	input.setAttribute(\"size\",size);\
		5465	input.setAttribute(\"value\",value);\
		5466	if( readonly == 0 ){ input.setAttribute(\"readonly\",\"readonly\");};\
7653	schaersvoo	5467	canvas_div.appendChild(input);};");
7614	schaersvoo	5468	break;
		5469
		5470	case DRAW_TEXTAREAS:
		5471	fprintf(js_include_file,"\n<!-- draw text area inputfields -->\n\
		5472	draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
		5473	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		5474	var textarea = document.createElement(\"textarea\");\
		5475	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		5476	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		5477	textarea.setAttribute(\"cols\",cols);\
		5478	textarea.setAttribute(\"rows\",rows);\
		5479	textarea.innerHTML = value;\
7653	schaersvoo	5480	canvas_div.appendChild(textarea);};");
7614	schaersvoo	5481	break;
		5482
		5483	case DRAW_PIXELS:
		5484	fprintf(js_include_file,"\n<!-- draw pixel -->\n\
		5485	draw_setpixel = function(x,y,color,opacity,pixelsize){\
		5486	var canvas = create_canvas%d(10,xsize,ysize);\
		5487	var d = 0.5*pixelsize;\
		5488	var ctx = canvas.getContext(\"2d\");\
		5489	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		5490	ctx.clearRect(0,0,xsize,ysize);\
		5491	for(var p=0; p<x.length;p++){\
		5492	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		5493	};\
		5494	ctx.fill();ctx.stroke();\
		5495	};",canvas_root_id);
		5496	break;
		5497
		5498	case DRAW_CLOCK:
		5499	fprintf(js_include_file,"\n<!-- begin command clock -->\n\
		5500	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		5501	var clock_ctx = clock_canvas.getContext(\"2d\");\
		5502	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
		5503	clock_ctx.save();\
		5504	this.type = type \|\| 0;\
		5505	this.interaction = interaction \|\| 0;\
		5506	this.H = H \|\| parseInt(110*(Math.random()));\
		5507	this.M = M \|\| parseInt(590*(Math.random()));\
		5508	this.S = S \|\| parseInt(590*(Math.random()));\
		5509	this.xc = xc \|\| xsize/2;\
		5510	this.yc = yc \|\| ysize/2;\
		5511	this.radius = radius \|\| xsize/4;\
		5512	var font_size = parseInt(0.2*this.radius);\
		5513	this.H_color = h_color \|\| \"blue\";\
		5514	this.M_color = m_color \|\| \"blue\";\
		5515	this.S_color = s_color \|\| \"blue\";\
		5516	this.fg_color = fg_color \|\| \"red\";\
		5517	this.bg_color = bg_color \|\| \"white\";\
		5518	clock_ctx.translate(this.xc,this.yc);\
		5519	clock_ctx.beginPath();\
		5520	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		5521	clock_ctx.fillStyle = this.bg_color;\
		5522	clock_ctx.fill();\
		5523	clock_ctx.closePath();\
		5524	clock_ctx.beginPath();\
		5525	clock_ctx.font = font_size+\"px Arial\";\
		5526	clock_ctx.fillStyle = this.fg_color;\
		5527	clock_ctx.textAlign = \"center\";\
		5528	clock_ctx.textBaseline = 'middle';\
		5529	var angle;var x1,y1,x2,y2;\
		5530	var angle_cos;var angle_sin;\
		5531	switch(type){\
		5532	case 0:clock_ctx.beginPath();\
		5533	for(var p = 1; p <= 12 ; p++){\
		5534	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5535	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5536	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5537	clock_ctx.moveTo(x1,y1);\
		5538	clock_ctx.lineTo(x2,y2);\
		5539	};\
		5540	for(var p = 1; p <= 60 ; p++){\
		5541	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5542	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5543	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5544	clock_ctx.moveTo(x1,y1);\
		5545	clock_ctx.lineTo(x2,y2);\
		5546	};\
		5547	clock_ctx.closePath();\
		5548	clock_ctx.stroke();\
		5549	break;\
		5550	case 1:\
		5551	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;\
		5552	case 2:for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 1.1this.radiusMath.cos(angle);y1 = 1.1this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};\
		5553	clock_ctx.beginPath();\
		5554	for(var p = 1; p <= 12 ; p++){\
		5555	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		5556	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		5557	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5558	clock_ctx.moveTo(x1,y1);\
		5559	clock_ctx.lineTo(x2,y2);\
		5560	};\
		5561	for(var p = 1; p <= 60 ; p++){\
		5562	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		5563	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		5564	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		5565	clock_ctx.moveTo(x1,y1);\
		5566	clock_ctx.lineTo(x2,y2);\
		5567	};\
		5568	clock_ctx.closePath();\
		5569	clock_ctx.stroke();\
		5570	break;\
		5571	};\
		5572	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		5573	clock_ctx.rotate(angle);\
		5574	clock_ctx.beginPath();\
		5575	clock_ctx.moveTo(-3, -2);\
		5576	clock_ctx.lineTo(-3, 2);\
		5577	clock_ctx.lineTo(this.radius * 0.7, 1);\
		5578	clock_ctx.lineTo(this.radius * 0.7, -1);\
		5579	clock_ctx.fillStyle = this.H_color;\
		5580	clock_ctx.fill();\
		5581	clock_ctx.rotate(-angle);\
		5582	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		5583	clock_ctx.rotate(angle);\
		5584	clock_ctx.beginPath();\
		5585	clock_ctx.moveTo(-3, -2);\
		5586	clock_ctx.lineTo(-3, 2);\
		5587	clock_ctx.lineTo(this.radius * 0.8, 1);\
		5588	clock_ctx.lineTo(this.radius * 0.8, -1);\
		5589	clock_ctx.fillStyle = this.M_color;\
		5590	clock_ctx.fill();\
		5591	clock_ctx.rotate(-angle);\
		5592	angle = (this.S - 15) * 2 * Math.PI / 60;\
		5593	clock_ctx.rotate(angle);\
		5594	clock_ctx.beginPath();\
		5595	clock_ctx.moveTo(0,0);\
		5596	clock_ctx.lineTo(this.radius * 0.95, 0);\
		5597	clock_ctx.lineTo(this.radius * 0.9, -1);\
		5598	clock_ctx.strokeStyle = this.S_color;\
		5599	clock_ctx.stroke();\
		5600	clock_ctx.restore();\
7653	schaersvoo	5601	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	5602	break;
		5603
		5604	case DRAW_LATTICE:
		5605	fprintf(js_include_file,"\n<!-- draw lattice -->\n\
		5606	draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_translate,vector){\
		5607	var obj;\
		5608	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		5609	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		5610	}\
		5611	else\
		5612	{\
		5613	obj = create_canvas%d(canvas_type,xsize,ysize);\
		5614	};\
		5615	var ctx = obj.getContext(\"2d\");\
		5616	ctx.save();\
		5617	if(use_translate == 1 ){ctx.translate(vector[0],vector[1]);}\
		5618	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		5619	ctx.fillStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5620	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		5621	var radius = line_width;\
		5622	var x = 0;\
		5623	var y = 0;\
		5624	var x_step_px = xsize/(xmax-xmin);\
		5625	var y_step_px = ysize/(ymax-ymin);\
		5626	var xv1 = dx1*x_step_px;\
		5627	var yv1 = dy1*y_step_px;\
		5628	var xv2 = dx2*x_step_px;\
		5629	var yv2 = dy2*y_step_px;\
		5630	for(var p = 0; p < n1 ;p++){\
		5631	x = p*xv1 + x0;\
		5632	y = p*yv1 + y0;\
		5633	for(var c = 0; c < n2 ; c++){\
		5634	ctx.beginPath();\
		5635	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		5636	ctx.fill();\
		5637	ctx.stroke();\
		5638	ctx.closePath();\
		5639	};\
		5640	};\
		5641	ctx.restore();\
		5642	return;\
7653	schaersvoo	5643	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	5644	break;
7735	schaersvoo	5645	case DRAW_XYLOGSCALE:
		5646	fprintf(js_include_file,"\n<!-- draw xylogscale -->\n\
7779	schaersvoo	5647	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){\n\
7735	schaersvoo	5648	var obj;\n\
		5649	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5650	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5651	}\n\
		5652	else\n\
		5653	{\n\
		5654	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5655	};\n\
		5656	var ctx = obj.getContext(\"2d\");\n\
		5657	ctx.clearRect(0,0,xsize,ysize);\
		5658	ctx.save();\n\
7739	schaersvoo	5659	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
		5660	var x_min = Math.log(xmin)/Math.log(xlogbase);\n\
		5661	var x_max = Math.log(xmax)/Math.log(xlogbase);\n\
		5662	var y_min = Math.log(ymin)/Math.log(ylogbase);\n\
		5663	var y_max = Math.log(ymax)/Math.log(ylogbase);\n\
		5664	if(use_axis_numbering == 1){\
		5665	ctx.font = font_family;\n\
		5666	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\n\
		5667	ymarge = parseInt(1.5*font_size);\n\
		5668	ctx.save();\n\
		5669	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5670	ctx.rect(0,0,xmarge,ysize);\n\
		5671	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5672	ctx.fill();\n\
		5673	ctx.restore();\n\
		5674	}else{xmarge = 0;ymarge = 0;};\n\
7735	schaersvoo	5675	if( typeof xaxislabel !== 'undefined' ){\
7739	schaersvoo	5676	ctx.save();\n\
		5677	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5678	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5679	corr = ctx.measureText(xaxislabel).width;\n\
		5680	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5681	ctx.restore();\n\
		5682	};\n\
7735	schaersvoo	5683	if( typeof yaxislabel !== 'undefined' ){\
7739	schaersvoo	5684	ctx.save();\n\
		5685	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5686	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5687	corr = ctx.measureText(yaxislabel).width;\n\
		5688	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5689	ctx.rotate(-0.5*Math.PI);\n\
		5690	ctx.fillText(yaxislabel,0,0);\n\
		5691	ctx.restore();\n\
		5692	};\n\
		5693	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5694	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5695	for(var p = x_min; p <= x_max ; p++){\n\
7739	schaersvoo	5696	num = Math.pow(xlogbase,p);\n\n\
7735	schaersvoo	5697	for(var i = 1 ; i < xlogbase ; i++){\n\
7739	schaersvoo	5698	x_e = x2px(i*num);\n\n\
7735	schaersvoo	5699	if( i == 1 ){\
7739	schaersvoo	5700	ctx.lineWidth = line_width;\n\n\
		5701	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\n\
7738	schaersvoo	5702	if( use_axis_numbering == 1 && p > x_min){\
7739	schaersvoo	5703	xtxt = xlogbase+'^'+p.toFixed(0);\n\
		5704	corr = 0.5*(ctx.measureText(xtxt).width);\n\
		5705	ctx.fillText(xtxt,x_e - corr,ysize - 4);\n\
		5706	};\n\
7735	schaersvoo	5707	}else{\
7739	schaersvoo	5708	ctx.lineWidth = 0.2*line_width;\n\n\
		5709	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5710	};\n\
7738	schaersvoo	5711	if( x_e >= xmarge ){\
		5712	ctx.beginPath();\n\
		5713	ctx.moveTo(x_e,0);\n\
7739	schaersvoo	5714	ctx.lineTo(x_e,ysize - ymarge);\n\n\
7738	schaersvoo	5715	ctx.stroke();\n\
		5716	ctx.closePath();\n\
		5717	};\
7735	schaersvoo	5718	};\n\
		5719	};\n\
		5720	for(var p = y_min; p <= y_max ; p++){\n\
		5721	num = Math.pow(ylogbase,p);\n\
		5722	for(var i = 1 ; i < ylogbase ; i++){\n\
		5723	y_e = y2px(i*num);\n\
7739	schaersvoo	5724	if( i == 1 ){\n\
7735	schaersvoo	5725	ctx.lineWidth = line_width;\n\
		5726	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5727	if( use_axis_numbering == 1 && p > y_min){\n\
		5728	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\n\
		5729	};\n\
		5730	}else{\n\
7735	schaersvoo	5731	ctx.lineWidth = 0.2*line_width;\n\
7739	schaersvoo	5732	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\n\
		5733	};\n\
7735	schaersvoo	5734	ctx.beginPath();\n\
7738	schaersvoo	5735	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5736	ctx.lineTo(xsize,y_e);\n\
		5737	ctx.stroke();\n\
		5738	ctx.closePath();\n\
		5739	};\n\
		5740	};\n\
		5741	ctx.restore();\
		5742	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5743	break;
7614	schaersvoo	5744
7735	schaersvoo	5745	case DRAW_XLOGSCALE:
		5746	fprintf(js_include_file,"\n<!-- draw xlogscale -->\n\
7779	schaersvoo	5747	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){\n\
7735	schaersvoo	5748	var obj;\n\
		5749	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5750	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5751	}\n\
		5752	else\n\
		5753	{\n\
		5754	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5755	};\n\
		5756	var ctx = obj.getContext(\"2d\");\n\
		5757	ctx.clearRect(0,0,xsize,ysize);\
		5758	ctx.save();\n\
		5759	ctx.lineWidth = line_width;\n\
7739	schaersvoo	5760	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	5761	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		5762	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		5763	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	5764	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
		5765	if(use_axis_numbering == 1){\
		5766	ctx.font = font_family;\n\
		5767	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\n\
		5768	ymarge = parseInt(1.5*font_size);\n\
		5769	ctx.save();\n\
		5770	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5771	ctx.rect(0,0,xmarge,ysize);\n\
		5772	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5773	ctx.fill();\n\
		5774	ctx.restore();\n\
		5775	}else{xmarge = 0;ymarge = 0;};\n\
		5776	if( typeof xaxislabel !== 'undefined' ){\
		5777	ctx.save();\n\
		5778	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5779	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5780	corr = ctx.measureText(xaxislabel).width;\n\
		5781	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5782	ctx.restore();\n\
		5783	};\n\
		5784	if( typeof yaxislabel !== 'undefined' ){\
		5785	ctx.save();\n\
		5786	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5787	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5788	corr = ctx.measureText(yaxislabel).width;\n\
		5789	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5790	ctx.rotate(-0.5*Math.PI);\n\
		5791	ctx.fillText(yaxislabel,0,0);\n\
		5792	ctx.restore();\n\
		5793	};\n\
		5794	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5795	ctx.lineWidth = line_width;\n\n\
7735	schaersvoo	5796	for(var p = x_min; p <= x_max ; p++){\n\
		5797	num = Math.pow(xlogbase,p);\n\
		5798	for(var i = 1 ; i < xlogbase ; i++){\n\
		5799	x_e = x2px(i*num);\n\
		5800	if( i == 1 ){\
7739	schaersvoo	5801	ctx.lineWidth = line_width;\n\
		5802	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5803	if( use_axis_numbering == 1 && p > x_min ){\
7735	schaersvoo	5804	xtxt = xlogbase+'^'+p.toFixed(0);\
		5805	corr = 0.5*(ctx.measureText(xtxt).width);\
		5806	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		5807	};\
		5808	}else{\
		5809	ctx.lineWidth = 0.2*line_width;\n\
		5810	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5811	};\
7739	schaersvoo	5812	if( x_e >= xmarge ){\
		5813	ctx.beginPath();\n\
		5814	ctx.moveTo(x_e,0);\n\
		5815	ctx.lineTo(x_e,ysize - ymarge);\n\n\
		5816	ctx.stroke();\n\
		5817	ctx.closePath();\n\
		5818	};\
		5819	};\
7735	schaersvoo	5820	};\n\
		5821	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		5822	var minor_step = stepy / yminor;\
7749	schaersvoo	5823	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	5824	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5825	ctx.lineWidth = line_width;\n\
		5826	ctx.beginPath();\n\
7739	schaersvoo	5827	ctx.moveTo(xmarge,y);\n\
7735	schaersvoo	5828	ctx.lineTo(xsize,y);\n\
		5829	ctx.stroke();\n\
		5830	ctx.closePath();\n\
		5831	if( use_axis_numbering == 1){\
		5832	ytxt = (px2y(y)).toFixed(prec);\
		5833	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		5834	};\
		5835	for(var dy = 1 ; dy < yminor ; dy++){\
		5836	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5837	ctx.lineWidth = 0.2*line_width;\n\
		5838	ctx.beginPath();\n\
7739	schaersvoo	5839	ctx.moveTo(xmarge,y+dy*minor_step);\
7735	schaersvoo	5840	ctx.lineTo(xsize,y+dy*minor_step);\n\
		5841	ctx.stroke();\n\
		5842	ctx.closePath();\n\
		5843	};\
		5844	};\
		5845	ctx.restore();\n\
		5846	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5847	break;
7729	schaersvoo	5848	case DRAW_YLOGSCALE:
		5849	fprintf(js_include_file,"\n<!-- draw ylogscale -->\n\
7779	schaersvoo	5850	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){\n\
7729	schaersvoo	5851	var obj;\n\
		5852	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\n\
		5853	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\n\
		5854	}\n\
		5855	else\n\
		5856	{\n\
		5857	obj = create_canvas%d(canvas_type,xsize,ysize);\n\
		5858	};\n\
		5859	var ctx = obj.getContext(\"2d\");\n\
		5860	ctx.clearRect(0,0,xsize,ysize);\
		5861	ctx.save();\n\
		5862	ctx.lineWidth = line_width;\n\
7735	schaersvoo	5863	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		5864	var y_max = Math.log(ymax)/Math.log(ylogbase);\
		5865	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;\
7739	schaersvoo	5866	if(use_axis_numbering == 1){\
		5867	ctx.font = font_family;\n\
		5868	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\n\
		5869	ymarge = 2*font_size;\n\
		5870	ctx.save();\n\
		5871	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\n\
		5872	ctx.rect(0,0,xmarge,ysize);\n\
		5873	ctx.rect(0,ysize-ymarge,xsize,ysize);\n\
		5874	ctx.fill();\n\
		5875	ctx.restore();\n\
		5876	}else{xmarge = 0;ymarge = 0;};\n\
		5877	if( typeof xaxislabel !== 'undefined' ){\
		5878	ctx.save();\n\
		5879	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5880	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5881	corr = ctx.measureText(xaxislabel).width;\n\
		5882	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\n\
		5883	ctx.restore();\n\
		5884	};\n\
		5885	if( typeof yaxislabel !== 'undefined' ){\
		5886	ctx.save();\n\
		5887	ctx.font = \"italic \"+font_size+\"px Ariel\";\n\
		5888	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5889	corr = ctx.measureText(yaxislabel).width;\n\
		5890	ctx.translate(xmarge+font_size,corr+font_size);\n\
		5891	ctx.rotate(-0.5*Math.PI);\n\
		5892	ctx.fillText(yaxislabel,0,0);\n\
		5893	ctx.restore();\n\
		5894	};\n\
		5895	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\n\
		5896	ctx.lineWidth = line_width;\n\n\
7729	schaersvoo	5897	for(var p = y_min; p <= y_max ; p++){\n\
7735	schaersvoo	5898	num = Math.pow(ylogbase,p);\n\
		5899	for(var i = 1 ; i < ylogbase ; i++){\n\
7729	schaersvoo	5900	y_e = y2px(i*num);\n\
		5901	if( i == 1 ){\
		5902	ctx.lineWidth = line_width;\n\
		5903	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7739	schaersvoo	5904	if( use_axis_numbering == 1 && p > y_min){\
7735	schaersvoo	5905	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	5906	};\
		5907	}else{\
		5908	ctx.lineWidth = 0.2*line_width;\n\
		5909	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5910	};\
		5911	ctx.beginPath();\n\
7739	schaersvoo	5912	ctx.moveTo(xmarge,y_e);\n\
7735	schaersvoo	5913	ctx.lineTo(xsize,y_e);\n\
7729	schaersvoo	5914	ctx.stroke();\n\
		5915	ctx.closePath();\n\
		5916	};\n\
		5917	};\n\
		5918	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		5919	var minor_step = stepx / xminor;\
		5920	var prec = Math.log(precision)/Math.log(10);\
		5921	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	5922	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	5923	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
		5924	ctx.lineWidth = line_width;\n\
		5925	ctx.beginPath();\n\
7739	schaersvoo	5926	ctx.moveTo(x,ysize-ymarge);\n\
7729	schaersvoo	5927	ctx.lineTo(x,0);\n\
		5928	ctx.stroke();\n\
		5929	ctx.closePath();\n\
		5930	if( use_axis_numbering == 1){\
		5931	xtxt = (px2x(x)).toFixed(prec);\
		5932	corr = 0.5*(ctx.measureText(xtxt).width);\
		5933	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		5934	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		5935	};\
		5936	for(var dx = 1 ; dx < xminor ; dx++){\
		5937	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		5938	ctx.lineWidth = 0.2*line_width;\n\
		5939	ctx.beginPath();\n\
7739	schaersvoo	5940	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7729	schaersvoo	5941	ctx.lineTo(x+dx*minor_step,0);\n\
		5942	ctx.stroke();\n\
		5943	ctx.closePath();\n\
7735	schaersvoo	5944	};\
		5945	};\
7729	schaersvoo	5946	ctx.restore();\n\
		5947	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		5948
		5949	break;
7735	schaersvoo	5950
		5951
7614	schaersvoo	5952	default:break;
		5953	}
		5954	}
		5955	}
		5956	return;
		5957	}
		5958
		5959	void check_string_length(int L){
		5960	if(L<1 \|\| L > MAX_BUFFER-1){
		5961	canvas_error("problem with your arguments to command...");
		5962	}
		5963	return;
		5964	}
		5965
		5966
		5967	int get_token(FILE *infile){
		5968	int c,i=0;
		5969	char temp[MAX_INT], *input_type;
		5970	char *line="line",
		5971	*audio="audio",
		5972	*blink="blink",
		5973	*arrowhead="arrowhead",
		5974	*crosshairsize="crosshairsize",
		5975	*crosshair="crosshair",
		5976	*crosshairs="crosshairs",
		5977	*audioobject="audioobject",
		5978	*style="style",
		5979	*mouse="mouse",
		5980	*userdraw="userdraw",
		5981	*highlight="highlight",
		5982	*http="http",
		5983	*rays="rays",
		5984	*dashtype="dashtype",
		5985	*dashed="dashed",
		5986	*filled="filled",
		5987	*lattice="lattice",
		5988	*parallel="parallel",
		5989	*segment="segment",
		5990	*dsegment="dsegment",
		5991	*seg="seg",
		5992	*bgimage="bgimage",
		5993	*bgcolor="bgcolor",
		5994	*strokecolor="strokecolor",
		5995	*backgroundimage="backgroundimage",
		5996	*text="text",
		5997	*textup="textup",
		5998	*mouseprecision="mouseprecision",
		5999	*precision="precision",
		6000	*plotsteps="plotsteps",
		6001	*plotstep="plotstep",
		6002	*tsteps="tsteps",
		6003	*curve="curve",
		6004	*dcurve="dcurve",
		6005	*plot="plot",
		6006	*dplot="dplot",
7788	schaersvoo	6007	*levelcurve="levelcurve",
7614	schaersvoo	6008	*fontsize="fontsize",
		6009	*fontcolor="fontcolor",
		6010	*axis="axis",
		6011	*axisnumbering="axisnumbering",
		6012	*axisnumbers="axisnumbers",
		6013	*arrow="arrow",
		6014	*darrow="darrow",
		6015	*arrow2="arrow2",
		6016	*darrow2="darrow2",
		6017	*zoom="zoom",
		6018	*grid="grid",
		6019	*hline="hline",
7786	schaersvoo	6020	*dhline="dhline",
7614	schaersvoo	6021	*drag="drag",
		6022	*horizontalline="horizontalline",
		6023	*vline="vline",
7786	schaersvoo	6024	*dvline="dvline",
7614	schaersvoo	6025	*verticalline="verticalline",
		6026	*triangle="triangle",
		6027	*ftriangle="ftriangle",
		6028	*mathml="mathml",
		6029	*html="html",
		6030	*input="input",
		6031	*button="button",
		6032	*inputstyle="inputstyle",
		6033	*textarea="textarea",
		6034	*trange="trange",
		6035	*ranget="ranget",
		6036	*xrange="xrange",
		6037	*yrange="yrange",
		6038	*rangex="rangex",
		6039	*rangey="rangey",
		6040	*polyline="polyline",
		6041	*lines="lines",
		6042	*poly="poly",
		6043	*polygon="polygon",
		6044	*fpolygon="fpolygon",
		6045	*fpoly="fpoly",
		6046	*filledpoly="filledpoly",
		6047	*filledpolygon="filledpolygon",
		6048	*rect="rect",
		6049	*frect="frect",
		6050	*rectangle="rectangle",
		6051	*frectangle="frectangle",
		6052	*square="square",
		6053	*fsquare="fsquare",
		6054	*dline="dline",
		6055	*arc="arc",
		6056	*filledarc="filledarc",
		6057	*size="size",
		6058	*string="string",
		6059	*stringup="stringup",
		6060	*copy="copy",
		6061	*copyresized="copyresized",
		6062	*opacity="opacity",
		6063	*transparent="transparent",
		6064	*fill="fill",
		6065	*slider="slider",
		6066	*point="point",
		6067	*points="points",
		6068	*linewidth="linewidth",
		6069	*circle="circle",
		6070	*fcircle="fcircle",
		6071	*disk="disk",
		6072	*comment="#",
		6073	*end="end",
		6074	*ellipse="ellipse",
		6075	*fellipse="fellipse",
		6076	*rotate="rotate",
7785	schaersvoo	6077	*affine="affine",
		6078	*killaffine="killaffine",
7614	schaersvoo	6079	*fontfamily="fontfamily",
		6080	*fillcolor="fillcolor",
		6081	*clicktile="clicktile",
		6082	*clicktile_colors="clicktile_colors",
		6083	*translation="translation",
		6084	*translate="translate",
		6085	*killtranslation="killtranslation",
		6086	*killtranslate="killtranslate",
		6087	*onclick="onclick",
		6088	*roundrect="roundrect",
		6089	*froundrect="froundrect",
		6090	*roundrectangle="roundrectangle",
		6091	*patternfill="patternfill",
		6092	*hatchfill="hatchfill",
		6093	*diafill="diafill",
7647	schaersvoo	6094	*diamondfill="diamondfill",
7614	schaersvoo	6095	*dotfill="dotfill",
		6096	*gridfill="gridfill",
		6097	*imagefill="imagefill",
7735	schaersvoo	6098	*xlogbase="xlogbase",
		6099	*ylogbase="ylogbase",
7614	schaersvoo	6100	*xlogscale="xlogscale",
		6101	*ylogscale="ylogscale",
		6102	*xylogscale="xylogscale",
		6103	*intooltip="intooltip",
		6104	*replyformat="replyformat",
		6105	*floodfill="floodfill",
		6106	*filltoborder="filltoborder",
		6107	*clickfill="clickfill",
		6108	*setpixel="setpixel",
		6109	*pixels="pixels",
		6110	*pixelsize="pixelsize",
		6111	*clickfillmarge="clickfillmarge",
		6112	*xaxis="xaxis",
		6113	*yaxis="yaxis",
		6114	*xaxistext="xaxistext",
		6115	*yaxistext="yaxistext",
		6116	*piechart="piechart",
		6117	*legend="legend",
		6118	*legendcolors="legendcolors",
		6119	*xlabel="xlabel",
		6120	*ylabel="ylabel",
		6121	*barchart="barchart",
		6122	*linegraph="linegraph",
		6123	*clock="clock",
		6124	*animate="animate",
		6125	*video="video",
		6126	*status="status",
7652	schaersvoo	6127	*snaptogrid="snaptogrid",
7784	schaersvoo	6128	*xsnaptogrid="xsnaptogrid",
		6129	*ysnaptogrid="ysnaptogrid",
7654	schaersvoo	6130	*userinput_xy="userinput_xy",
7663	schaersvoo	6131	*usertextarea_xy="usertextarea_xy",
7823	schaersvoo	6132	*jsmath="jsmath",
		6133	*trace_jsmath="trace_jsmath",
7654	schaersvoo	6134	*sgraph="sgraph";
7614	schaersvoo	6135
		6136	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')){
		6137	if( i == 0 && (c == ' ' \|\| c == '\t') ){
		6138	continue; /* white spaces or tabs allowed before first command identifier */
		6139	}
		6140	else
		6141	{
		6142	if( c == ' ' \|\| c == '\t' ){
		6143	break;
		6144	}
		6145	else
		6146	{
		6147	temp[i] = c;
		6148	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		6149	i++;
		6150	}
		6151	}
		6152	if(temp[0] == '#') break;
		6153	}
		6154	if (c == EOF) finished = 1;
		6155
		6156	if (c == '\n' \|\| c == '\r') {
		6157	line_number++;
		6158	if (i == 0) { return EMPTY; }
		6159	} else if (c == EOF) {
		6160	return 0;
		6161	}
		6162
		6163	temp[i]='\0';
		6164	input_type=(char*)my_newmem(strlen(temp));
		6165	snprintf(input_type,sizeof(temp),"%s",temp);
		6166
		6167	if( strcmp(input_type, size) == 0 ){
		6168	free(input_type);
		6169	return SIZE;
		6170	}
		6171	if( strcmp(input_type, xrange) == 0 ){
		6172	free(input_type);
		6173	return XRANGE;
		6174	}
		6175	if( strcmp(input_type, rangex) == 0 ){
		6176	free(input_type);
		6177	return XRANGE;
		6178	}
		6179	if( strcmp(input_type, trange) == 0 ){
		6180	free(input_type);
		6181	return TRANGE;
		6182	}
		6183	if( strcmp(input_type, ranget) == 0 ){
		6184	free(input_type);
		6185	return TRANGE;
		6186	}
		6187	if( strcmp(input_type, yrange) == 0 ){
		6188	free(input_type);
		6189	return YRANGE;
		6190	}
		6191	if( strcmp(input_type, rangey) == 0 ){
		6192	free(input_type);
		6193	return YRANGE;
		6194	}
		6195	if( strcmp(input_type, linewidth) == 0 ){
		6196	free(input_type);
		6197	return LINEWIDTH;
		6198	}
		6199	if( strcmp(input_type, dashed) == 0 ){
		6200	free(input_type);
		6201	return DASHED;
		6202	}
		6203	if( strcmp(input_type, dashtype) == 0 ){
		6204	free(input_type);
		6205	return DASHTYPE;
		6206	}
		6207	if( strcmp(input_type, axisnumbering) == 0 ){
		6208	free(input_type);
		6209	return AXIS_NUMBERING;
		6210	}
		6211	if( strcmp(input_type, axisnumbers) == 0 ){
		6212	free(input_type);
		6213	return AXIS_NUMBERING;
		6214	}
		6215	if( strcmp(input_type, axis) == 0 ){
		6216	free(input_type);
		6217	return AXIS;
		6218	}
		6219	if( strcmp(input_type, grid) == 0 ){
		6220	free(input_type);
		6221	return GRID;
		6222	}
		6223	if( strcmp(input_type, parallel) == 0 ){
		6224	free(input_type);
		6225	return PARALLEL;
		6226	}
		6227	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
		6228	free(input_type);
		6229	return HLINE;
		6230	}
		6231	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		6232	free(input_type);
		6233	return VLINE;
		6234	}
		6235	if( strcmp(input_type, line) == 0 ){
		6236	free(input_type);
		6237	return LINE;
		6238	}
		6239	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		6240	free(input_type);
		6241	return SEGMENT;
		6242	}
		6243	if( strcmp(input_type, dsegment) == 0 ){
		6244	free(input_type);
		6245	use_dashed = TRUE;
		6246	return SEGMENT;
		6247	}
		6248	if( strcmp(input_type, crosshairsize) == 0 ){
		6249	free(input_type);
		6250	return CROSSHAIRSIZE;
		6251	}
		6252	if( strcmp(input_type, arrowhead) == 0 ){
		6253	free(input_type);
		6254	return ARROWHEAD;
		6255	}
		6256	if( strcmp(input_type, crosshairs) == 0 ){
		6257	free(input_type);
		6258	return CROSSHAIRS;
		6259	}
		6260	if( strcmp(input_type, crosshair) == 0 ){
		6261	free(input_type);
		6262	return CROSSHAIR;
		6263	}
		6264	if( strcmp(input_type, onclick) == 0 ){
		6265	free(input_type);
		6266	return ONCLICK;
		6267	}
		6268	if( strcmp(input_type, drag) == 0 ){
		6269	free(input_type);
		6270	return DRAG;
		6271	}
		6272	if( strcmp(input_type, userdraw) == 0 ){
		6273	free(input_type);
		6274	return USERDRAW;
		6275	}
		6276	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		6277	free(input_type);
		6278	return STYLE;
		6279	}
		6280	if( strcmp(input_type, fillcolor) == 0 ){
		6281	free(input_type);
		6282	return FILLCOLOR;
		6283	}
		6284	if( strcmp(input_type, strokecolor) == 0 ){
		6285	free(input_type);
		6286	return STROKECOLOR;
		6287	}
		6288	if( strcmp(input_type, filled) == 0 ){
		6289	free(input_type);
		6290	return FILLED;
		6291	}
		6292	if( strcmp(input_type, http) == 0 ){
		6293	free(input_type);
		6294	return HTTP;
		6295	}
		6296	if( strcmp(input_type, rays) == 0 ){
		6297	free(input_type);
		6298	return RAYS;
		6299	}
		6300	if( strcmp(input_type, lattice) == 0 ){
		6301	free(input_type);
		6302	return LATTICE;
		6303	}
		6304	if( strcmp(input_type, bgimage) == 0 ){
		6305	free(input_type);
		6306	return BGIMAGE;
		6307	}
		6308	if( strcmp(input_type, bgcolor) == 0 ){
		6309	free(input_type);
		6310	return BGCOLOR;
		6311	}
		6312	if( strcmp(input_type, backgroundimage) == 0 ){
		6313	free(input_type);
		6314	return BGIMAGE;
		6315	}
		6316	if( strcmp(input_type, text) == 0 ){
		6317	free(input_type);
		6318	return FLY_TEXT;
		6319	}
		6320	if( strcmp(input_type, textup) == 0 ){
		6321	free(input_type);
		6322	return FLY_TEXTUP;
		6323	}
		6324	if( strcmp(input_type, mouse) == 0 ){
		6325	free(input_type);
		6326	return MOUSE;
		6327	}
		6328	if( strcmp(input_type, mouseprecision) == 0 ){
		6329	free(input_type);
		6330	return MOUSE_PRECISION;
		6331	}
		6332	if( strcmp(input_type, precision) == 0 ){
		6333	free(input_type);
		6334	return MOUSE_PRECISION;
		6335	}
		6336	if( strcmp(input_type, curve) == 0 ){
		6337	free(input_type);
		6338	return CURVE;
		6339	}
		6340	if( strcmp(input_type, dcurve) == 0 ){
7788	schaersvoo	6341	use_dashed = TRUE;
7614	schaersvoo	6342	free(input_type);
		6343	return CURVE;
		6344	}
		6345	if( strcmp(input_type, plot) == 0 ){
		6346	free(input_type);
		6347	return CURVE;
		6348	}
		6349	if( strcmp(input_type, dplot) == 0 ){
7788	schaersvoo	6350	use_dashed = TRUE;
7614	schaersvoo	6351	free(input_type);
		6352	return CURVE;
		6353	}
7788	schaersvoo	6354	if( strcmp(input_type, levelcurve) == 0 ){
		6355	free(input_type);
		6356	return LEVELCURVE;
		6357	}
7614	schaersvoo	6358	if( strcmp(input_type, plotsteps) == 0 ){
		6359	free(input_type);
		6360	return PLOTSTEPS;
		6361	}
		6362	if( strcmp(input_type, plotstep) == 0 ){
		6363	free(input_type);
		6364	return PLOTSTEPS;
		6365	}
		6366	if( strcmp(input_type, tsteps) == 0 ){
		6367	free(input_type);
		6368	return PLOTSTEPS;
		6369	}
		6370	if( strcmp(input_type, fontsize) == 0 ){
		6371	free(input_type);
		6372	return FONTSIZE;
		6373	}
		6374	if( strcmp(input_type, fontcolor) == 0 ){
		6375	free(input_type);
		6376	return FONTCOLOR;
		6377	}
		6378	if( strcmp(input_type, arrow) == 0 ){
		6379	free(input_type);
		6380	return ARROW;
		6381	}
		6382	if( strcmp(input_type, arrow2) == 0 ){
		6383	free(input_type);
		6384	return ARROW2;
		6385	}
		6386	if( strcmp(input_type, darrow) == 0 ){
		6387	free(input_type);
		6388	return ARROW;
		6389	}
		6390	if( strcmp(input_type, darrow2) == 0 ){
		6391	free(input_type);
		6392	use_dashed = TRUE;
		6393	return ARROW2;
		6394	}
		6395	if( strcmp(input_type, zoom) == 0 ){
		6396	free(input_type);
		6397	return ZOOM;
		6398	}
		6399	if( strcmp(input_type, triangle) == 0 ){
		6400	free(input_type);
		6401	return TRIANGLE;
		6402	}
		6403	if( strcmp(input_type, ftriangle) == 0 ){
		6404	free(input_type);
		6405	use_filled = TRUE;
		6406	return TRIANGLE;
		6407	}
		6408	if( strcmp(input_type, input) == 0 ){
		6409	free(input_type);
		6410	return INPUT;
		6411	}
		6412	if( strcmp(input_type, inputstyle) == 0 ){
		6413	free(input_type);
		6414	return INPUTSTYLE;
		6415	}
		6416	if( strcmp(input_type, textarea) == 0 ){
		6417	free(input_type);
		6418	return TEXTAREA;
		6419	}
		6420	if( strcmp(input_type, mathml) == 0 ){
		6421	free(input_type);
		6422	return MATHML;
		6423	}
		6424	if( strcmp(input_type, html) == 0 ){
		6425	free(input_type);
		6426	return MATHML;
		6427	}
		6428	if( strcmp(input_type, fontfamily) == 0 ){
		6429	free(input_type);
		6430	return FONTFAMILY;
		6431	}
		6432	if( strcmp(input_type, lines) == 0 \|\| strcmp(input_type, polyline) == 0 ){
		6433	free(input_type);
		6434	return POLYLINE;
		6435	}
		6436	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		6437	free(input_type);
		6438	return RECT;
		6439	}
		6440	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		6441	free(input_type);
		6442	return ROUNDRECT;
		6443	}
		6444	if( strcmp(input_type, froundrect) == 0 ){
		6445	free(input_type);
		6446	use_filled = TRUE;
		6447	return ROUNDRECT;
		6448	}
		6449	if( strcmp(input_type, square) == 0 ){
		6450	free(input_type);
		6451	return SQUARE;
		6452	}
		6453	if( strcmp(input_type, fsquare) == 0 ){
		6454	free(input_type);
		6455	use_filled = TRUE;
		6456	return SQUARE;
		6457	}
		6458	if( strcmp(input_type, dline) == 0 ){
		6459	use_dashed = TRUE;
		6460	free(input_type);
		6461	return LINE;
		6462	}
7786	schaersvoo	6463	if( strcmp(input_type, dvline) == 0 ){
		6464	use_dashed = TRUE;
		6465	free(input_type);
		6466	return VLINE;
		6467	}
		6468	if( strcmp(input_type, dhline) == 0 ){
		6469	use_dashed = TRUE;
		6470	free(input_type);
		6471	return HLINE;
		6472	}
7614	schaersvoo	6473	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		6474	use_filled = TRUE;
		6475	free(input_type);
		6476	return RECT;
		6477	}
		6478	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		6479	use_filled = TRUE;
		6480	free(input_type);
		6481	return CIRCLE;
		6482	}
		6483	if( strcmp(input_type, circle) == 0 ){
		6484	free(input_type);
		6485	return CIRCLE;
		6486	}
		6487	if( strcmp(input_type, point) == 0 ){
		6488	free(input_type);
		6489	return POINT;
		6490	}
		6491	if( strcmp(input_type, points) == 0 ){
		6492	free(input_type);
		6493	return POINTS;
		6494	}
		6495	if( strcmp(input_type, filledarc) == 0 ){
		6496	use_filled = TRUE;
		6497	free(input_type);
		6498	return ARC;
		6499	}
		6500	if( strcmp(input_type, arc) == 0 ){
		6501	free(input_type);
		6502	return ARC;
		6503	}
		6504	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		6505	free(input_type);
		6506	return POLY;
		6507	}
		6508	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		6509	use_filled = TRUE;
		6510	free(input_type);
		6511	return POLY;
		6512	}
		6513	if( strcmp(input_type, ellipse) == 0){
		6514	free(input_type);
		6515	return ELLIPSE;
		6516	}
		6517	if( strcmp(input_type, fill) == 0 ){
		6518	free(input_type);
		6519	return FLOODFILL;
		6520	}
		6521	if( strcmp(input_type, string) == 0 ){
		6522	free(input_type);
		6523	return STRING;
		6524	}
		6525	if( strcmp(input_type, stringup) == 0 ){
		6526	free(input_type);
		6527	return STRINGUP;
		6528	}
		6529	if( strcmp(input_type, opacity) == 0 ){
		6530	free(input_type);
		6531	return OPACITY;
		6532	}
		6533	if( strcmp(input_type, comment) == 0){
		6534	free(input_type);
		6535	return COMMENT;
		6536	}
		6537	if( strcmp(input_type, end) == 0){
		6538	free(input_type);
		6539	return END;
		6540	}
		6541	if( strcmp(input_type, fellipse) == 0){
		6542	free(input_type);
		6543	use_filled = TRUE;
		6544	return ELLIPSE;
		6545	}
		6546	if( strcmp(input_type, blink) == 0 ){
		6547	free(input_type);
		6548	return BLINK;
		6549	}
		6550	if( strcmp(input_type, button) == 0){
		6551	free(input_type);
		6552	return BUTTON;
		6553	}
		6554	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		6555	free(input_type);
		6556	return TRANSLATION;
		6557	}
		6558	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		6559	free(input_type);
		6560	return KILLTRANSLATION;
		6561	}
		6562	if( strcmp(input_type, rotate) == 0){
		6563	free(input_type);
		6564	return ROTATE;
		6565	}
7785	schaersvoo	6566	if( strcmp(input_type, affine) == 0){
		6567	free(input_type);
		6568	return AFFINE;
		6569	}
		6570	if( strcmp(input_type, killaffine) == 0){
		6571	free(input_type);
		6572	return KILLAFFINE;
		6573	}
7614	schaersvoo	6574	if( strcmp(input_type, audio) == 0 ){
		6575	free(input_type);
		6576	return AUDIO;
		6577	}
		6578	if( strcmp(input_type, audioobject) == 0 ){
		6579	free(input_type);
		6580	return AUDIOOBJECT;
		6581	}
		6582	if( strcmp(input_type, slider) == 0 ){
		6583	free(input_type);
		6584	return SLIDER;
		6585	}
		6586	if( strcmp(input_type, copy) == 0 ){
		6587	free(input_type);
		6588	return COPY;
		6589	}
		6590	if( strcmp(input_type, copyresized) == 0 ){
		6591	free(input_type);
		6592	return COPYRESIZED;
		6593	}
		6594	if( strcmp(input_type, patternfill) == 0 ){
		6595	free(input_type);
		6596	return PATTERNFILL;
		6597	}
		6598	if( strcmp(input_type, hatchfill) == 0 ){
		6599	free(input_type);
		6600	return HATCHFILL;
		6601	}
7647	schaersvoo	6602	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
7614	schaersvoo	6603	free(input_type);
7647	schaersvoo	6604	return DIAMONDFILL;
7614	schaersvoo	6605	}
		6606	if( strcmp(input_type, dotfill) == 0 ){
		6607	free(input_type);
		6608	return DOTFILL;
		6609	}
		6610	if( strcmp(input_type, gridfill) == 0 ){
		6611	free(input_type);
		6612	return GRIDFILL;
		6613	}
		6614	if( strcmp(input_type, imagefill) == 0 ){
		6615	free(input_type);
		6616	return IMAGEFILL;
		6617	}
		6618	if( strcmp(input_type, clicktile_colors) == 0 ){
		6619	free(input_type);
		6620	return CLICKTILE_COLORS;
		6621	}
		6622	if( strcmp(input_type, clicktile) == 0 ){
		6623	free(input_type);
		6624	return CLICKTILE;
		6625	}
		6626	if( strcmp(input_type, xlogscale) == 0 ){
		6627	free(input_type);
		6628	return XLOGSCALE;
		6629	}
		6630	if( strcmp(input_type, ylogscale) == 0 ){
		6631	free(input_type);
		6632	return YLOGSCALE;
		6633	}
		6634	if( strcmp(input_type, xylogscale) == 0 ){
		6635	free(input_type);
		6636	return XYLOGSCALE;
		6637	}
		6638	if( strcmp(input_type, ylogscale) == 0 ){
		6639	free(input_type);
		6640	return YLOGSCALE;
		6641	}
7735	schaersvoo	6642	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	6643	free(input_type);
7735	schaersvoo	6644	return XLOGBASE;
7614	schaersvoo	6645	}
7735	schaersvoo	6646	if( strcmp(input_type, ylogbase) == 0 ){
		6647	free(input_type);
		6648	return YLOGBASE;
		6649	}
7614	schaersvoo	6650	if( strcmp(input_type, intooltip) == 0 ){
		6651	free(input_type);
		6652	return INTOOLTIP;
		6653	}
		6654	if( strcmp(input_type,video) == 0 ){
		6655	free(input_type);
		6656	return VIDEO;
		6657	}
		6658	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		6659	free(input_type);
		6660	return FLOODFILL;
		6661	}
		6662	if( strcmp(input_type,filltoborder) == 0 ){
		6663	free(input_type);
		6664	return FILLTOBORDER;
		6665	}
		6666	if( strcmp(input_type,clickfill) == 0 ){
		6667	free(input_type);
		6668	return CLICKFILL;
		6669	}
		6670	if( strcmp(input_type, replyformat) == 0 ){
		6671	free(input_type);
		6672	return REPLYFORMAT;
		6673	}
		6674	if( strcmp(input_type, pixelsize) == 0 ){
		6675	free(input_type);
		6676	return PIXELSIZE;
		6677	}
		6678	if( strcmp(input_type, setpixel) == 0 ){
		6679	free(input_type);
		6680	return SETPIXEL;
		6681	}
		6682	if( strcmp(input_type, pixels) == 0 ){
		6683	free(input_type);
		6684	return PIXELS;
		6685	}
		6686	if( strcmp(input_type, clickfillmarge) == 0 ){
		6687	free(input_type);
		6688	return CLICKFILLMARGE;
		6689	}
		6690	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		6691	free(input_type);
		6692	return X_AXIS_STRINGS;
		6693	}
		6694	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		6695	free(input_type);
		6696	return Y_AXIS_STRINGS;
		6697	}
		6698	if( strcmp(input_type, piechart) == 0 ){
		6699	free(input_type);
		6700	return PIECHART;
		6701	}
		6702	if( strcmp(input_type, barchart) == 0 ){
		6703	free(input_type);
		6704	return BARCHART;
		6705	}
		6706	if( strcmp(input_type, linegraph) == 0 ){
		6707	free(input_type);
		6708	return LINEGRAPH;
		6709	}
		6710	if( strcmp(input_type, clock) == 0 ){
		6711	free(input_type);
		6712	return CLOCK;
		6713	}
		6714	if( strcmp(input_type, legend) == 0 ){
		6715	free(input_type);
		6716	return LEGEND;
		6717	}
		6718	if( strcmp(input_type, legendcolors) == 0 ){
		6719	free(input_type);
		6720	return LEGENDCOLORS;
		6721	}
		6722	if( strcmp(input_type, xlabel) == 0 ){
		6723	free(input_type);
		6724	return XLABEL;
		6725	}
		6726	if( strcmp(input_type, ylabel) == 0 ){
		6727	free(input_type);
		6728	return YLABEL;
		6729	}
		6730	if( strcmp(input_type, animate) == 0 ){
		6731	free(input_type);
		6732	return ANIMATE;
		6733	}
		6734	/* these are bitmap related flydraw commmands...must be removed. eventually */
		6735	if( strcmp(input_type, transparent) == 0 ){
		6736	free(input_type);
		6737	return TRANSPARENT;
		6738	}
		6739	if( strcmp(input_type, status) == 0 ){
		6740	free(input_type);
		6741	return STATUS;
		6742	}
		6743	if( strcmp(input_type, snaptogrid) == 0 ){
		6744	free(input_type);
		6745	return SNAPTOGRID;
		6746	}
7784	schaersvoo	6747	if( strcmp(input_type, xsnaptogrid) == 0 ){
		6748	free(input_type);
		6749	return XSNAPTOGRID;
		6750	}
		6751	if( strcmp(input_type, ysnaptogrid) == 0 ){
		6752	free(input_type);
		6753	return YSNAPTOGRID;
		6754	}
7652	schaersvoo	6755	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	6756	free(input_type);
7652	schaersvoo	6757	return USERINPUT_XY;
		6758	}
7663	schaersvoo	6759	if( strcmp(input_type, usertextarea_xy) == 0 ){
		6760	free(input_type);
		6761	return USERTEXTAREA_XY;
		6762	}
7654	schaersvoo	6763	if( strcmp(input_type, sgraph) == 0 ){
7652	schaersvoo	6764	free(input_type);
7654	schaersvoo	6765	return SGRAPH;
		6766	}
7823	schaersvoo	6767	if( strcmp(input_type, jsmath) == 0 ){
7654	schaersvoo	6768	free(input_type);
7823	schaersvoo	6769	return JSMATH;
		6770	}
		6771	if( strcmp(input_type, trace_jsmath) == 0 ){
		6772	free(input_type);
		6773	return TRACE_JSMATH;
		6774	}
		6775	free(input_type);
7614	schaersvoo	6776	ungetc(c,infile);
		6777	return 0;
		6778	}
		6779
7729	schaersvoo	6780

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c – Rev 7833