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Rev Author Line No. Line
15111 schaersvoo 1
#include "canvasdraw.h"
2
/*
3
collection of javascript utilities (with no configurable parameters)
4
*/
5
void add_javascript_function(){
6
int i;
7
int type;
8
for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
9
/*
10
fprintf(stdout,"checking js_function[%d] = %d<br />",i,js_function[i]);
11
*/
12
 if( js_function[i] == 1){
13
    switch(i){
14
 
15690 schaersvoo 15
case JS_ARROWHEAD:
16
/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */
17
fprintf(js_include_file,"\n/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */\
18
function draw_arrowhead(x,y,x0,y0,ctx){\
19
var angle = Math.atan2(x - x0,y - y0) + Math.PI;\
20
var pie = Math.PI/6;\
21
ctx.save();\
22
ctx.fillStyle=ctx.strokeStyle;\
23
ctx.beginPath();\
24
ctx.moveTo(x,y);\
25
ctx.moveTo(x - (arrow_head * Math.sin(angle - pie)),y - (arrow_head * Math.cos(angle - pie)));\
26
ctx.lineTo(x,y);\
27
ctx.lineTo(x - (arrow_head * Math.sin(angle + pie)),y - (arrow_head * Math.cos(angle + pie)));\
28
ctx.closePath();\
29
ctx.stroke();\
30
ctx.fill();\
31
ctx.restore();\
32
};");
33
break;
15111 schaersvoo 34
case JS_LOAD_IMAGE:
35
fprintf(js_include_file,"\n/* get_image_from_url */\
36
var image_cnt = 0;\
37
if( typeof(image_patterns) !== 'object'){var image_patterns = [];};\
38
var get_image_from_url = function(url){\
39
 var idx = Math.ceil(1000*(Math.random()));\
40
 var canvas = create_canvas%d(idx,xsize,ysize);\
41
 canvas.style.visibility = 'hidden';\
42
 var ctx = canvas.getContext(\"2d\");\
43
 var img = new Image();\
44
 img.src = url;\
45
 img.onload = function(){\
46
  var pat = ctx.createPattern(img,\"repeat\");\
47
  image_patterns.push(pat);\
48
 };\
49
};",canvas_root_id);
50
break;
51
 
52
case JS_SAFE_EVAL:
53
/* to avoid easy js-code injection...but is it a real problem ? */
54
fprintf(js_include_file," \n/* add safe eval function */function safe_eval(exp){\
55
 exp = exp.replace(/pi/g,'3.14159');\
56
 if(exp.indexOf('^') != -1){\
57
  exp = exp.replace(/[a-zA-Z]/g,' ');\
58
  exp = exp.replace(/\\*10\\^-/g,'e-');\
59
  exp = exp.replace(/\\*10\\^/g,'e+');\
60
  exp = exp.replace(/10\\^-/g,'1e-');exp = exp.replace(/10\\^/g,'1e+');\
61
  exp = eval(exp);\
62
  if(isNaN(exp)){alert(\"invalid input\\ntry just a real number \\ne.g. no calculations...\");return null;}\
63
  return exp;\
64
 };\
65
 var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;\
66
 var valid = true;\
67
 exp = exp.replace(reg,function($0){\
68
  if(Math.hasOwnProperty($0)){\
69
   return \"Math.\"+$0;\
70
  }\
71
  else\
72
  {\
73
   valid = false;\
74
  }\
75
 }\
76
 );\
77
 if( !valid ){\
78
  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
79
 }\
80
 else\
81
 {\
82
  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
83
 };\
84
 return exp;\
85
};");
86
break;
87
 
88
case JS_RAWMATH:
89
fprintf(js_include_file,"\n/* add_rawmath() */\
90
function rawmath(i){\
91
 i=i.toLowerCase();\
92
 i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
93
 if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
94
 if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
95
 i=i.replace(/\\*\\*/g,\"*\");\
96
 if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
97
 var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
98
 var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
99
 var cntl = 0;var cntr = 0;\
100
 var len = i.length;\
101
 for( var p = 0;p < len; p++){\
102
  if(i.charAt(p) == '('){cntl++;}\
103
  if(i.charAt(p) == ')'){cntr++;}\
104
 };\
105
 if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
106
 for(var p = 0; p < 12 ; p++){\
107
  for(var d = 0; d < 12 ; d++){\
108
   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
109
    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
110
   };\
111
   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
112
    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
113
   };\
114
  };\
115
 };\
116
 if(i.indexOf(\"(\")!=-1){\
117
  for(var p = 0;p < 12; p++){\
118
   if(i.indexOf(cons[p]+\"(\")!=-1){\
119
    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
120
   };\
121
   if(i.indexOf(\")\"+cons[p])!=-1){\
122
    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
123
   };\
124
  };\
125
  i = i.replace(/\\)\\(/g,\")*(\");\
126
 };\
127
 return i;\
128
};");
129
break;
130
 
131
case JS_PLOT:
132
fprintf(js_include_file,"\n/* jsplot() */\
133
var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
134
function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
135
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
136
 var ctx = obj.getContext(\"2d\");\
137
 ctx.clearRect(0,0,xsize,ysize);\
138
 animation_funs = funs.length;\
139
 function eval_jsmath(x,func){return parseFloat(eval(func));};\
140
 if(origin == 0 ){\
141
  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
142
  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
143
  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
144
  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
145
 };\
146
 x_anim_points = [];y_anim_points = [];var idx=0;\
147
 if( use_parametric == 1){\
148
  for(var i = 0 ; i < animation_funs; i=i+2){\
15351 bpr 149
   funs[i] = funs[i].replace(/t/g,'x');\
150
   funs[i+1] = funs[i+1].replace(/t/g,'x');\
151
   funs[i] = funs[i].replace(/xan/g,'tan');\
152
   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
15111 schaersvoo 153
   var fun_x = to_js_math(funs[i]);\
154
   var fun_y = to_js_math(funs[i+1]);\
155
   if(fun_x == null || fun_y == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
156
   try{ parseFloat( eval_jsmath( px2x(0),fun_x ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
157
   ctx.lineWidth = linewidth[i] || linewidth;\
158
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
159
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
160
   var y1;var x1;var y2;var x2;\
161
   ctx.beginPath();\
162
   var tmin = trange[0];var tmax = trange[1];\
163
   var step = parseFloat((tmax - tmin)/plotsteps);\
164
   for(var p = tmin ; p < tmax; p = p+step ){\
165
    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
166
    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
167
    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
168
    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
169
    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
170
     ctx.moveTo(x1,y1);\
171
     ctx.lineTo(x2,y2);\
172
     ctx.moveTo(x1,y1);\
173
     ctx.lineTo(x2,y2);\
174
   };\
175
   ctx.closePath();\
176
   ctx.stroke();\
177
  };\
178
  animation_funs = 0.5*animation_funs;\
179
 }else{\
180
  for(var i = 0 ; i < animation_funs; i++){\
181
   var fun = to_js_math(funs[i]);\
182
   if(fun == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
183
   try{ parseFloat( eval_jsmath( px2x(0),fun ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
184
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
185
   ctx.lineWidth = linewidth[i] || linewidth;\
186
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
187
   var y1;var x1;var y2;var x2;\
188
   ctx.beginPath();\
189
   for(var p = 0 ; p<xsize;p++){\
190
    x1 = px2x(p);\
191
    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
192
    x2 = px2x(p+1);\
193
    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
194
    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
195
    if(Math.abs(y2-y1) < ysize ){\
196
     ctx.moveTo(p,y1);\
197
     ctx.lineTo(p+1,y2);\
198
    };\
199
   };\
200
   ctx.closePath();\
201
   ctx.stroke();\
202
  };\
203
 };\
204
 if( use_animate == 1 ){animation_steps = idx;animate_this();}\
205
};",canvas_root_id);
206
break;
207
 
208
case JS_MATH:
209
fprintf(js_include_file,"\n/* to_js_math() */\
210
function to_js_math(math_fun){\
211
 if(math_fun == null){return;};\
212
 var infun=[\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
213
 var outfun=[\"Math.sqrt\",\"Math.pow\",\"Math.asin\",\"Math.acos\",\"Math.atan\",\"Math.log\",\"(3.14159265358979)\",\"Math.abs\",\"Math.sin\",\"Math.cos\",\"Math.tan\",\"(2.718281828459045)\"];\
214
 var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
215
 for(var p=0 ; p < len ; p++){\
216
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
217
  if(math_fun.indexOf(in_fun) != -1){\
218
   if(in_fun == \"^\"){\
219
    var tab = [];var small_trick = \"___small_trick___\";\
220
    while (math_fun.indexOf(\"(\") != -1){\
221
     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
222
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
223
    };\
224
    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
225
    while (math_fun.indexOf(small_trick) != -1){\
226
     math_fun = math_fun.replace(new RegExp(small_trick + \"(\\\\d+)\", \"g\"), function(m, d){return tab[d].replace(/(\\w*)\\^(\\w*)/g, out_fun+\"($1,$2)\");});\
227
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
228
    };\
229
   }\
230
   else\
231
   {\
232
    while( math_fun.indexOf(in_fun) != -1 ){\
233
     math_fun = math_fun.replace(in_fun,out_fun);\
234
     math_fun = math_fun.replace(in_fun,In_Fun);\
235
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
236
    };\
237
   };\
238
  };\
239
 };\
240
 for(var p=0 ; p < len ; p++){\
241
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
242
  if(math_fun.indexOf(In_Fun) != -1 ){\
243
   while(math_fun.indexOf(In_Fun) != -1){\
244
    math_fun = math_fun.replace(In_Fun,in_fun);\
245
    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
246
   };\
247
  };\
248
 };\
249
 return math_fun;\
250
};");
251
break;
252
 
253
case INTERACTIVE:
254
 fprintf(js_include_file,"\n/* add mouse support */ var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));var getMouse = function(e,element){var mx,my;var offsetX = 0,offsetY = 0;while( ( element = element.offsetParent) ){offsetX += element.offsetLeft;offsetY += element.offsetTop;};if(isTouch){mx = e.pageX - offsetX;my = e.pageY - offsetY;}else{mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);};return {x: mx, y: my};};");
255
break;
256
case USERDRAW_AND_ZOOM:
257
fprintf(js_include_file,"\n/* add zoom support for multidraw */\
258
function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
259
 function x_zoom(px){\
260
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
261
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
262
 };\
263
 function y_zoom(py){\
264
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
265
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
266
 };\
267
 function r_zoom(r){\
268
  return r*(xmin0/xmin);\
269
 };\
270
 var len = userdraw_x.length;\
271
 var x;var y;var r;\
272
 for(var p=0;p<len;p++){\
273
  x = userdraw_x[p];\
274
  y = userdraw_y[p];\
275
  userdraw_x[p] = x_zoom(x);\
276
  userdraw_y[p] = y_zoom(y);\
277
  if( userdraw_radius[p] ){\
278
   r = userdraw_radius[p];\
279
   userdraw_radius[p] = r_zoom(r);\
280
  };\
281
 };\
282
};");
283
break;
284
 
285
case DRAG_AND_ZOOM:
286
fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
287
function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
288
 function x_zoom(px){\
289
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
290
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
291
 };\
292
 function y_zoom(py){\
293
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
294
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
295
 };\
296
 var len = dragstuff.shapes.length;\
297
 var shape;var L;var x;var y;\
298
 for(var p=0;p<len;p++){\
299
  shape = dragstuff.shapes[p];\
300
  L = shape.x.length;\
301
  for(var i=0;i<L;i++){\
302
   x = shape.x[i];\
303
   y = shape.y[i];\
304
   dragstuff.shapes[p].x[i] = x_zoom(x);\
305
   dragstuff.shapes[p].y[i] = y_zoom(y);\
306
  };\
307
 };\
308
};");
309
break;
310
 
311
case JSPLOT_AND_ZOOM:
312
fprintf(js_include_file,"\n/* add zoom support for jscurves */\
313
function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
314
break;
315
 
316
case JS_ZOOM:
317
fprintf(js_include_file,"\n/* add zoom support */\
318
var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
319
var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
320
function redraw_canvas%d(key){\
321
 var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
322
 switch(key){\
323
  case 0: xmin++;ymin++;xmax--;ymax--;break;\
324
  case 1: xmin--;ymin--;xmax++;ymax++;break;\
325
  case 2: xmin--;xmax--;break;\
326
  case 3: xmin++;xmax++;break;\
327
  case 4: ymin--;ymax--;break;\
328
  case 5: ymax++;ymin++;break;\
329
  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
330
  default: break;\
331
 };\
332
 if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
333
 if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
334
 if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
335
 if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
336
 if( typeof(redraw_grid) === 'function'){redraw_grid();};\
337
 if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
338
 if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
339
 return;\
340
};\
341
canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
342
canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
343
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
344
function wheel_zoom(evt){\
345
 evt.preventDefault();\
346
 var key = 1;\
347
 if(evt.deltaY > 0 ){key = 0};\
348
 redraw_canvas%d(key);\
349
 return;\
350
};\
351
function check_zoom_or_pan(evt){\
352
 var mouse = getMouse(evt,zoomcanvas);\
353
 var my = mouse.y;\
354
 if(my < ysize - 30){ return; };\
355
 var mx = mouse.x;\
356
 var key = -1;\
357
 for(var p = 15 ; p < 106 ; p = p+15){\
358
  key++;\
359
  if(mx > xsize - p){\
360
   redraw_canvas%d(key);\
361
   return;\
362
  };\
363
 };\
364
 return;\
365
};",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
366
break;
367
 
368
case DRAW_FILL_PATTERN:
369
fprintf(js_include_file,"\n /* add fill pattern */ \
370
function create_Pattern(x0,y0,type,color){document.body.style.cursor = 'wait';var idx = Math.ceil(1000*(Math.random()));var canvas = create_canvas%d(idx,xsize,ysize);canvas.style.visibility = 'hidden';var ctx = canvas.getContext(\"2d\");var x;var y;var dx = 6;var dy = 6;ctx.lineWidth = 1;ctx.strokeStyle = color;ctx.fillStyle = color;var pat;\
371
 switch(type){\
372
  case 2: for( x = 0 ; x < xsize ; x = x + dx ){ctx.beginPath();ctx.moveTo(x,0);ctx.lineTo(x,ysize);ctx.closePath();ctx.stroke();};for( y = 0 ; y < ysize; y = y + dy ){ctx.beginPath();ctx.moveTo(0,y);ctx.lineTo(xsize,y);ctx.closePath();ctx.stroke();}; pat = ctx.createPattern(canvas,\"no-repeat\");break;\
373
  case 3: y = ysize;ctx.beginPath();for( x = 0 ; x < xsize ; x = x + dx ){ctx.moveTo(x,0);ctx.lineTo(xsize,y);y = y - dy;};y = 0;for( x = xsize ; x > 0 ; x = x - dx){ctx.moveTo(x,ysize);ctx.lineTo(0,y); y = y + dy;};ctx.closePath();ctx.stroke(); pat = ctx.createPattern(canvas,\"no-repeat\");break;\
374
  case 4: y = ysize;ctx.beginPath();for( x = 0 ; x < xsize ; x = x + dx ){ctx.moveTo(x,0); ctx.lineTo(xsize,y); y = y - dy;};y = 0;for( x = xsize ; x > 0 ; x = x - dx){ctx.moveTo(x,ysize);ctx.lineTo(0,y);y = y + dy;};y = 0;for( x = 0 ; x < xsize ; x = x + dx ){ctx.moveTo(x,0); ctx.lineTo(0,y); y = y + dy;};y = 0;for( x = 0 ; x < xsize ; x = x + dx ){ctx.moveTo(xsize,y);ctx.lineTo(x,ysize);y = y + dy;};ctx.closePath(); ctx.stroke(); pat = ctx.createPattern(canvas,\"no-repeat\");break;\
375
  case 5: for( x = 0 ; x < xsize ; x = x + dx ){for( y = 0 ; y < ysize ; y = y + dy ){ctx.beginPath();ctx.arc(x,y,1,0,2*Math.PI,false);ctx.closePath();ctx.fill();};}; pat = ctx.createPattern(canvas,\"no-repeat\");break;\
376
  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
377
  default: break;\
378
 };\
379
 document.body.style.cursor = 'default';return pat;\
380
};",canvas_root_id);
381
break;
382
 
383
case JS_TRANSFORM_MOUSE:
384
/* identify mouse coordinates on transformed objects using command affine */
385
fprintf(js_include_file,"\n/* translate mouse */\
386
function transform_mouse(mx,my,obj){\
387
if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
388
var m = obj.affine_matrix;\
389
var d = 1/(m[0]*m[3]-m[1]*m[2]);\
390
var im = [ m[3]*d, -m[1]*d,-m[2]*d,m[0]*d,d*(m[2]*m[5]-m[3]*m[4]),d*(m[1]*m[4]-m[0]*m[5]) ];\
391
return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
392
break;
393
 
394
case JS_ROTATE_MOUSE:
395
/*
396
identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
397
faster than transform matrix
398
*/
399
fprintf(js_include_file,"\n/* rotate mouse */\
400
function rotate_mouse(mx,my,obj){\
401
 if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
402
 var cos = Math.cos(obj.angle);\
403
 var sin = Math.sin(obj.angle);\
404
 var xc = obj.rotation_center[0];\
405
 var yc = obj.rotation_center[1];\
406
 var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
407
 var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
408
 return {x:x_r,y:y_r};};");
409
break;
410
 
411
case JS_FIND_ANGLE:
412
 fprintf(js_include_file,"\n/* function find_angle() */ function find_angle(xc,yc,x1,y1){var dx = x1 - xc;var dy = yc - y1;return Math.atan2(dx,dy);};");
413
break;
414
 
415
case DRAG_EXTERNAL_IMAGE:
416
/*
417
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
418
reply is object{} and identical to reply from dragstuff library for drag&drop&click
419
reply[object_cnt] = {type:onclick,x:x0,y:y0,r:radius,angle:angle,clicked:0|1};
420
 
421
 
422
   img[6]= parseInt(img[6] - img[16]);\
423
   img[7]= parseInt(img[7] - img[17]);\
424
   else{\
425
    img[6]= parseInt(img[6] + img[16]);\
426
    img[7]= parseInt(img[7] + img[17]);\
427
  };\
428
 
429
*/
430
fprintf(js_include_file,"\n/* drag external images */\
431
var external_ctx = external_canvas.getContext(\"2d\");\
432
var external_canvas_rect = external_canvas.getBoundingClientRect();\
433
canvas_div.addEventListener(\"mousedown\",setxy,false);\
434
canvas_div.addEventListener(\"mouseup\",dragstop,false);\
435
canvas_div.addEventListener(\"mousemove\",dragxy,false);\
436
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
437
canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
438
canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
439
var selected_image = null;\
440
if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
441
if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
442
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
443
 var image = new Image();\
444
 image.src = URL;\
445
 slidergroup[object_cnt] = null;\
446
 image.onload = function(){\
447
  if( sx < 1 ){ sx = 0; };\
448
  if( sy < 1 ){ sy = 0; };\
449
  if( swidth < 1 ){swidth = image.width;};\
450
  if( sheight < 1 ){sheight = image.height;};\
451
  if( width < 1 ){width = image.width;};\
452
  if( height < 1 ){height = image.height;};\
453
  if( resize == 1 ){\
454
   if( swidth > image.width ){ swidth = image.width; };\
455
   if( sheight > image.height){ sheight = image.height;};\
456
   if( width > image.width ){ width = image.width; };\
457
   if( height > image.height){ height = image.height;};\
458
  };\
459
  var img = new Array(18);\
460
  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
461
  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
462
  img[6] = x0;img[7] = y0;\
463
  img[12] = ext_image_cnt;\
464
  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
465
  if(use_offset == 4 ){\
466
   img[16] = 0.5*img[8];\
467
   img[17] = 0.5*img[9];\
468
   img[6]= parseInt(img[6] - img[16]);\
469
   img[7]= parseInt(img[7] - img[17]);\
470
  };\
471
  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
472
  dragdrop_reply[img[10]] = {object_cnt:object_cnt,type:img[0],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
473
  ext_drag_images[ext_image_cnt] = img;\
474
  ext_image_cnt++;\
475
 };\
476
};\
477
function dragstop(evt){\
478
 if(selected_image != null){\
479
  var s_img = ext_drag_images[selected_image];\
480
  dragdrop_reply[s_img[10]] = {type:s_img[0],x:s_img[6]+s_img[16],y:s_img[7]+s_img[17],r:s_img[8],angle:s_img[15],clicked:s_img[15]};\
481
  console.log(dragdrop_reply[s_img[12]]);\
482
 };\
483
 selected_image = null;return;\
484
};\
485
function dragxy(evt){\
486
 if( selected_image != null ){\
487
  var s_img = ext_drag_images[selected_image];\
488
  var mouse = getMouse(evt,external_canvas);\
489
  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
490
  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
491
  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
492
  s_img[6] = xy[0];s_img[7] = xy[1];\
493
  ext_drag_images[selected_image] = s_img;\
494
  external_ctx.clearRect(0,0,xsize,ysize);\
495
  for(var i = 0; i < ext_image_cnt ; i++){\
496
   var img = ext_drag_images[i];\
497
   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
498
  };\
499
 };\
500
};\
501
function setxy(evt){\
502
 if( ! selected_image ){\
503
  console.log(selected_image);\
504
  var mouse = getMouse(evt,external_canvas);\
505
  var xm = mouse.x;\
506
  var ym = mouse.y;\
507
  var img;var xmarge;var ymarge;\
508
  for(var p = 0 ; p < ext_image_cnt ; p++){\
509
   if( ext_drag_images[p] ){\
510
    img = ext_drag_images[p];\
511
    if( img[0] != 0 ){\
512
     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
513
     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
514
      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
515
       if( img[0] == 1){\
516
        if( dragdrop_reply[img[10]].clicked == 1 ){\
517
         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
518
        }\
519
        else\
520
        {\
521
         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
522
        };\
523
        external_ctx.lineWidth = 2;\
524
        external_ctx.beginPath();\
525
        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
526
        external_ctx.closePath();\
527
        external_ctx.stroke();\
528
        return;\
529
       }\
530
       else\
531
       {\
532
        img[6] = xm;\
533
        img[7] = ym;\
534
        selected_image = p;\
535
        dragxy(evt);\
536
        ext_drag_images[p] = img;\
537
       };\
538
      };\
539
     };\
540
    };\
541
   };\
542
  };\
543
 }\
544
 else\
545
 {\
546
  selected_image = null;\
547
 };\
548
};");
549
break;
550
 
551
case DRAW_EXTERNAL_IMAGE:
552
/*
553
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
554
only drag_xy !
555
snaptogrid | xsnaptogrid | ysnaptogrid works
556
14/5/2019
557
on heavy styled wims (unice.fr etc problems with mouse?
558
now uniform method of retreiving mouse coordinates getMouse()
559
*/
560
fprintf(js_include_file,"\n/* draw external images */\
561
function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
562
 var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
563
 var image = new Image();\
564
 image.src = URL;\
565
 image.onload = function(){\
566
  if( sx < 1 ){ sx = 0; };\
567
  if( sy < 1 ){ sy = 0; };\
568
  if( swidth < 1 ){swidth = image.width;};\
569
  if( sheight < 1 ){sheight = image.height;};\
570
  if( width < 1 ){width = image.width;};\
571
  if( height < 1 ){height = image.height;};\
572
  if( resize == 1 ){\
573
   if( swidth > image.width ){ swidth = image.width; };\
574
   if( sheight > image.height){ sheight = image.height;};\
575
   if( width > image.width ){ width = image.width; };\
576
   if( height > image.height){ height = image.height;};\
577
  };\
578
  var img = new Array(9);\
579
  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
580
  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
581
  img[7] = width;img[8] = height;\
582
  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
583
 };\
584
};");
585
break;
586
 
587
case DRAW_BEZIER:
588
fprintf(js_include_file,"\n/* draw bezier curve */\
589
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
590
function draw_bezier(canvas_type,linewidth,xy_points,fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
591
 var obj;\
592
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
593
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
594
 }\
595
 else\
596
 {\
597
  obj = create_canvas%d(canvas_type,xsize,ysize);\
598
 };\
599
 var ctx = obj.getContext(\"2d\");\
600
 ctx.save();\
601
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
602
 ctx.lineWidth = linewidth;\
603
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
604
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
605
 ctx.beginPath();\
606
 ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
607
 ctx.bezierCurveTo(x2px(xy_points[2]),y2px(xy_points[3]),x2px(xy_points[4]),y2px(xy_points[5]),x2px(xy_points[6]),y2px(xy_points[7]));\
608
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
609
 if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
610
 ctx.stroke();\
611
 ctx.restore();\
612
};",canvas_root_id,canvas_root_id,canvas_root_id);
613
break;
614
 
615
case DRAW_GRIDFILL:/* not used for userdraw */
616
fprintf(js_include_file,"\n/* draw gridfill */\
617
var grid_fill_pattern;\
618
function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
619
 if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
620
 var fc = %d+canvas_type;\
621
 var obj = create_canvas%d(fc,xsize,ysize);\
622
 var ctx = obj.getContext('2d');\
623
 var x,y;\
624
 ctx.fillStyle='rgba(255,255,255,0.01)';\
625
 ctx.rect(0,0,xsize,ysize);\
626
 ctx.fill();\
627
 ctx.lineWidth = linewidth;\
628
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
629
 for( x = 0 ; x <= xsize ; x = x + dx ){\
630
  ctx.beginPath();\
631
  ctx.moveTo(x,0);\
632
  ctx.lineTo(x,ysize);\
633
  ctx.closePath();\
634
  ctx.stroke();\
635
 };\
636
 for( y = 0 ; y <= ysize; y = y + dy ){\
637
  ctx.beginPath();\
638
  ctx.moveTo(0,y);\
639
  ctx.lineTo(xsize,y);\
640
  ctx.closePath();\
641
  ctx.stroke();\
642
 };\
643
 if( use_userdraw ){\
644
  grid_fill_pattern = ctx;\
645
 }\
646
 else\
647
 {\
648
  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
649
};",canvas_root_id,canvas_root_id);
650
break;
651
 
652
case DRAW_IMAGEFILL:/* not  used for userdraw */
653
fprintf(js_include_file,"\n/* draw imagefill */\
654
function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
655
 var fc = %d+canvas_type;\
656
 var obj = create_canvas%d(fc,xsize,ysize);\
657
 var ctx = obj.getContext('2d');\
658
 var img = new Image();\
659
 img.src = URL;\
660
 obj.style.visibility = 'hidden';\
661
 img.onload = function(){\
662
  if( use_scaling == 1 ){\
663
   ctx.drawImage(img,x0,y0,xsize,ysize);\
664
  }else{\
665
   var w0 = img.width;var h0 = img.height;var w;var h;\
666
   for( w = x0; w < xsize ; w = w + w0 ){\
667
    for( h = y0; h < ysize; h = h + h0){\
668
      ctx.drawImage(img,w,h,w0,h0);\
669
    };\
670
   };\
671
  };\
672
  if( use_userdraw ){\
673
   image_pattern = ctx;\
674
  }\
675
  else\
676
  {\
677
   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
678
  };\
679
 };\
680
};",canvas_root_id,canvas_root_id);
681
break;
682
 
683
case DRAW_DOTFILL:/* not  used for userdraw */
684
fprintf(js_include_file,"\n/* draw dotfill */\
685
var dot_fill_pattern;\
686
function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
687
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
688
var fc = %d+canvas_type;\
689
 var obj = create_canvas%d(fc,xsize,ysize);\
690
 var ctx = obj.getContext('2d');\
691
 var x,y;\
692
 ctx.fillStyle='rgba(255,255,255,0.01)';\
693
 ctx.rect(0,0,xsize,ysize);\
694
 ctx.fill();\
695
 ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
696
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
697
 for( x = 0 ; x < xsize ; x = x + dx ){\
698
  for( y = 0 ; y < ysize ; y = y + dy ){\
699
   ctx.beginPath();\
700
   ctx.arc(x,y,radius,0,2*Math.PI,false);\
701
   ctx.closePath();\
702
   ctx.fill();\
703
  };\
704
 };\
705
 if( use_userdraw ){\
706
  dot_fill_pattern = ctx;\
707
 }\
708
 else\
709
 {\
710
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
711
 };\
712
return;\
713
};",canvas_root_id,canvas_root_id);
714
break;
715
 
716
case DRAW_TEXTFILL:/* not  used for userdraw */
717
fprintf(js_include_file,"\n/* draw textfill */\
718
var text_fill_pattern;\
719
function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
720
var fc = %d+canvas_type;\
721
var obj = create_canvas%d(fc,xsize,ysize);\
722
var ctx = obj.getContext('2d');\
723
ctx.font = fontfamily;\
724
var dx = 2+(ctx.measureText(txt)).width;\
725
var dy = 2+(ctx.measureText('MI')).width;\
726
ctx.fillStyle='rgba(255,255,255,0.01)';\
727
ctx.rect(0,0,xsize,ysize);\
728
ctx.fill();\
729
ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
730
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
731
for(var x = 0 ; x <= xsize ; x = x + dx ){\
732
 for(var y = 0 ; y <= ysize ; y = y + dy ){\
733
  ctx.fillText(txt, x, y);\
734
 };\
735
};\
736
if( use_userdraw ){\
737
 text_fill_pattern = ctx;\
738
}\
739
else\
740
{\
741
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
742
};\
743
return;};",canvas_root_id,canvas_root_id);
744
break;
745
 
746
case DRAW_DIAMONDFILL:/* not used for userdraw */
747
fprintf(js_include_file,"\n/* draw hatch fill */\
748
var diamond_fill_pattern;\
749
function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
750
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
751
var fc = %d+canvas_type;\
752
var obj = create_canvas%d(fc,xsize,ysize);\
753
var ctx = obj.getContext('2d');\
754
var x;\
755
var y;\
756
ctx.lineWidth = linewidth;\
757
ctx.fillStyle='rgba(255,255,255,0.01)';\
758
ctx.rect(0,0,xsize,ysize);\
759
ctx.fill();\
760
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
761
y = ysize;\
762
ctx.beginPath();\
763
for( x = 0 ; x <= xsize ; x = x + dx ){\
764
  ctx.moveTo(x,0);\
765
  ctx.lineTo(xsize,y);\
766
  y = y - dy;\
767
};\
768
y=0;\
769
for( x = xsize ; x >= 0 ; x = x - dx){\
770
 ctx.moveTo(x,ysize);\
771
 ctx.lineTo(0,y);\
772
 y = y + dy;\
773
};\
774
y = 0;\
775
for( x = 0 ; x <= xsize ; x = x + dx ){\
776
 ctx.moveTo(x,0);\
777
 ctx.lineTo(0,y);\
778
 y = y + dy;\
779
};\
780
y = 0;\
781
for( x = 0 ; x <= xsize ; x = x + dx ){\
782
 ctx.moveTo(xsize,y);\
783
 ctx.lineTo(x,ysize);\
784
 y = y + dy;\
785
};\
786
ctx.closePath();\
787
ctx.stroke();\
788
if( use_userdraw ){\
789
 diamond_fill_pattern = ctx;\
790
}\
791
else\
792
{\
793
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
794
};\
795
return;\
796
}",canvas_root_id,canvas_root_id);
797
break;
798
 
799
case DRAW_HATCHFILL:/* not used for userdraw */
800
fprintf(js_include_file,"\n/* draw hatch fill */\
801
var hatch_fill_pattern;\
802
function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
803
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
804
var fc = %d+canvas_type;\
805
var obj = create_canvas%d(fc,xsize,ysize);\
806
var ctx = obj.getContext('2d');\
807
var x,y;\
808
ctx.fillStyle='rgba(255,255,255,0.01)';\
809
ctx.rect(0,0,xsize,ysize);\
810
ctx.fill();\
811
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
812
ctx.lineWidth = linewidth;\
813
y = ysize;\
814
ctx.beginPath();\
815
for( x = 0 ; x <= xsize ; x = x + dx ){\
816
 ctx.moveTo(x,0);\
817
 ctx.lineTo(xsize,y);\
818
 y = y - dy;\
819
};\
820
y = 0;\
821
for( x = xsize ; x >= dx ; x = x - dx){\
822
 ctx.moveTo(x,ysize);\
823
 ctx.lineTo(0,y);\
824
 y = y + dy;\
825
};\
826
ctx.closePath();\
827
ctx.stroke();\
828
if( use_userdraw ){\
829
 hatch_fill_pattern = ctx;\
830
}\
831
else\
832
{\
833
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
834
};\
835
return;};",canvas_root_id,canvas_root_id);
836
break;
837
 
838
case DRAW_LINES:/*  used for js-tracing */
839
fprintf(js_include_file,"\n/* draw lines */\
840
function calc_line(x1,x2,y1,y2){\
841
 var marge = 2;\
842
 if(x1 < x2+marge && x1>x2-marge){\
843
  return [x1,0,x1,ysize];\
844
 };\
845
 if(y1 < y2+marge && y1>y2-marge){\
846
  return [0,y1,xsize,y1];\
847
 };\
848
 var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
849
 var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
850
 return [0,Y1,xsize,Y2];\
851
};\
852
var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
853
 ctx.save();\
854
 var line = new Array(4);\
855
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
856
 ctx.lineWidth = line_width;\
857
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
858
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
859
 for(var p = 0 ; p < x_points.length ; p = p+2 ){\
860
  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
861
  ctx.beginPath();\
862
  ctx.moveTo(line[0],line[1]);\
863
  ctx.lineTo(line[2],line[3]);\
864
  ctx.closePath();\
865
  ctx.stroke();\
866
  }\
867
  ctx.restore();\
868
  return;\
869
 };");
870
break;
871
 
872
case DRAW_CROSSHAIRS:/*  used for tracing */
873
fprintf(js_include_file,"\n/* draw crosshairs  */\
874
var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
875
 ctx.save();\
876
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
877
 ctx.lineWidth = line_width;\
878
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
879
 var x1,x2,y1,y2;\
880
 for(var p = 0 ; p < x_points.length ; p++ ){\
881
  x1 = x_points[p] - crosshair_size;\
882
  x2 = x_points[p] + crosshair_size;\
883
  y1 = y_points[p] - crosshair_size;\
884
  y2 = y_points[p] + crosshair_size;\
885
  ctx.beginPath();\
886
  ctx.moveTo(x1,y1);\
887
  ctx.lineTo(x2,y2);\
888
  ctx.closePath();\
889
  ctx.stroke();\
890
  ctx.beginPath();\
891
  ctx.moveTo(x2,y1);\
892
  ctx.lineTo(x1,y2);\
893
  ctx.closePath();\
894
  ctx.stroke();\
895
 }\
896
 ctx.restore();\
897
  return;\
898
};");
899
break;
900
 
901
case DRAW_VIDEO:/* not  used for userdraw */
902
fprintf(js_include_file,"\n/* draw video */\
903
var draw_video = function(canvas_root_id,x,y,w,h,URL){\
904
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
905
 var video_div = document.createElement(\"div\");\
906
 canvas_div.appendChild(video_div);\
907
 video_div.style.position = \"absolute\";\
908
 video_div.style.left = x+\"px\";\
909
 video_div.style.top = y+\"px\";\
910
 video_div.style.width = w+\"px\";\
911
 video_div.style.height = h+\"px\";\
912
 var video = document.createElement(\"video\");\
913
 video_div.appendChild(video);\
914
 video.style.width = w+\"px\";\
915
 video.style.height = h+\"px\";\
916
 video.autobuffer = true;\
917
 video.controls = true;video.autoplay = false;\
918
 var src = document.createElement(\"source\");\
919
 src.type = \"video/mp4\";\
920
 src.src = URL;\
921
 video.appendChild(src);\
922
 video.load();\
923
 return;\
924
};");
925
break;
926
 
927
case DRAW_AUDIO:/* not used for userdraw */
928
fprintf(js_include_file,"\n/* draw audio */\
929
var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
930
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
931
 var audio_div = document.createElement(\"div\");\
932
 canvas_div.appendChild(audio_div);\
933
 audio_div.style.position = \"absolute\";\
934
 audio_div.style.left = x+\"px\";\
935
 audio_div.style.top = y+\"px\";\
936
 audio_div.style.width = w+\"px\";\
937
 audio_div.style.height = h+\"px\";\
938
 var audio = document.createElement(\"audio\");\
939
 audio_div.appendChild(audio);\
940
 audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
941
 audio.autobuffer = true;\
942
 if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
943
 if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
944
 var src1 = document.createElement(\"source\");\
945
 src1.type = \"audio/ogg\";\
946
 src1.src = URL1;\
947
 audio.appendChild(src1);\
948
 var src2 = document.createElement(\"source\");\
949
 src2.type = \"audio/mpeg\";\
950
 src2.src = URL2;\
951
 audio.appendChild(src2);\
952
 audio.load();\
953
 return;\
954
};");
955
break;
956
 
957
case DRAW_HTTP:/* not  used for userdraw */
958
fprintf(js_include_file,"\n/* draw http */\
959
var draw_http = function(canvas_root_id,x,y,w,h,URL){\
960
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
961
 var http_div = document.createElement(\"div\");\
962
 var iframe = document.createElement(\"iframe\");\
963
 canvas_div.appendChild(http_div);\
964
 http_div.appendChild(iframe);\
965
 iframe.src = URL;\
966
 iframe.setAttribute(\"width\",w);\
967
 iframe.setAttribute(\"height\",h);\
968
 return;\
969
};");
970
break;
971
 
972
case DRAW_XML:
973
/*
974
!! function draw_xml(object)
975
!! produced by : DRAW_XML
976
!! used by commands: katex,latex,mathml,html,obabel
977
!! uses js-functions: calculate_size(xml_div),rad2deg(rad)
978
!! user interaction: drag,onclick,slider
979
!! reply function: read_dragdrop()
980
 
981
onclick=0; no interaction
982
onclick=1: click
983
onclick=2: drag ==> always centered (use_offset=4)
984
onclick=3: slider + click on object
985
onclick=4: slider (always active , keyword 'active' in slider params)
986
onclick=5: slider + dragdrop
987
xy:  drag_type = 0;
988
x:   drag_type = 1;
989
y:   drag_type = 2;
990
 
991
obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
992
*/
993
 
994
fprintf(js_include_file,"\n/* draw xml */\
995
function centered(xml_div,obj){\
996
 var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
997
 var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
998
 obj.offset = [ ww , hh ];\
999
 xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
1000
 xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';\
1001
};\
1002
function rad2deg(rad){return rad*180/(Math.PI);};\
1003
if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
1004
function draw_xml(obj){\
1005
 var mouse;var xy = [obj.x[0],obj.y[0]];\
1006
 var xml_div;\
1007
 dragdrop_reply[obj.object_cnt] = {object_cnt:obj.object_cnt,type:obj.onclick,x:obj.x,y:obj.y,r:0,angle:obj.angle,clicked:0};\
1008
 if( obj.once ){\
1009
  xml_div = document.createElement('DIV');\
1010
  canvas_div.appendChild(xml_div);\
1011
  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
1012
  xml_div.id = 'xml_div'+obj.id;\
1013
  xml_div.innerHTML = obj.mathml;\
1014
  xml_div.style.position = \"absolute\";\
1015
  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
1016
  xml_div.style.font = obj.fontfamily;\
1017
  if( ! obj.rotation_center){obj.rotation_center = [obj.x[0],obj.y[0]];}else{obj.rotation_center=[x2px(obj.rotation_center[0]) ,y2px(obj.rotation_center[1]) ];};\
1018
  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{centered(xml_div,obj);};};\
1019
 }\
1020
 else\
1021
 {\
1022
  xml_div = document.getElementById('xml_div'+obj.id );\
1023
 };\
1024
 if( typeof(xml_div) === 'undefined' ){console.log('hmmmmm'); return;};\
1025
 xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
1026
 xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';\
1027
 var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
1028
 var no_color = 'rgba(255,255,255,0)';var dragging = false;\
1029
 if( obj.use_affine != 0 || obj.angle != 0 ){\
1030
  xml_div.style.transform = 'matrix('+obj.transform[0]+','+obj.transform[1]+','+obj.transform[2]+','+obj.transform[3]+','+obj.transform[4]+','+obj.transform[5]+') rotate('+rad2deg(obj.angle)+'deg)';\
1031
 };\
1032
 if( obj.once ){\
1033
  obj.once = false;\
1034
  switch(obj.onclick){\
1035
   case 2:\
1036
    if(isTouch){\
1037
     canvas_div.addEventListener('touchmove' ,function(evt){ evt.preventDefault();if(!dragging){return;};mouse = getMouse(evt.changedTouches[0],xml_div);xy = multisnap_check( mouse.x,mouse.y,obj.use_snap);xml_div.style.left = xy[0] - obj.offset[0] - obj.transform[4] + 'px';xml_div.style.top = xy[1] - obj.offset[1] - obj.transform[5] + 'px';},false);\
1038
     canvas_div.addEventListener('touchend'  ,function(evt){ evt.preventDefault();dragging = false;xml_div.style.backgroundColor = no_color;dragdrop_reply[obj.object_cnt] = {object_cnt:obj.object_cnt,type:obj.onclick,x:xy[0],y:xy[1],r:0,angle:obj.angle,clicked:0};obj.x[0] = xy[0];obj.y[0] = xy[1];},false);\
1039
     xml_div.addEventListener('touchstart',function(evt){evt.preventDefault();if(dragging){dragging = false;xml_div.style.backgroundColor = no_color;}else{dragging = true;xml_div.style.backgroundColor = back_color;};},false);\
1040
     xml_div.addEventListener('touchend'  ,function(evt){ evt.preventDefault();dragging = false;xml_div.style.backgroundColor = no_color;dragdrop_reply[obj.object_cnt] = {object_cnt:obj.object_cnt,type:obj.onclick,x:xy[0],y:xy[1],r:0,angle:obj.angle,clicked:0};obj.x[0] = xy[0];obj.y[0] = xy[1];},false);\
1041
    }else{\
1042
     canvas_div.addEventListener('mousemove',function(evt){if(!dragging){return;};mouse = getMouse(evt,xml_div);xy = multisnap_check( mouse.x,mouse.y,obj.use_snap);xml_div.style.left = xy[0] - obj.offset[0] - obj.transform[4] + 'px';xml_div.style.top = xy[1] - obj.offset[1] - obj.transform[5] + 'px';},false);\
1043
     canvas_div.addEventListener('mouseup',function(evt){dragging = false;xml_div.style.backgroundColor = no_color;dragdrop_reply[obj.object_cnt] = {object_cnt:obj.object_cnt,type:obj.onclick,x:xy[0],y:xy[1],r:0,angle:obj.angle,clicked:0};obj.x[0] = xy[0];obj.y[0] = xy[1];},false);\
1044
     xml_div.addEventListener('mousedown', function(evt){if(dragging){dragging = false;xml_div.style.backgroundColor = no_color;}else{dragging = true;xml_div.style.backgroundColor = back_color;};},false);\
1045
    };\
1046
    break;\
1047
   case 1:\
1048
    if(isTouch ){\
1049
     xml_div.addEventListener('touchstart', function(e){ e.preventDefault();if(dragdrop_reply[obj.object_cnt].clicked == 0){ dragdrop_reply[obj.object_cnt].clicked = 1;xml_div.style.backgroundColor = back_color;}else{dragdrop_reply[obj.object_cnt].clicked = 0;xml_div.style.backgroundColor = no_color;};} ,false);\
1050
    }else{\
1051
     xml_div.addEventListener('mousedown'  , function(evt){if(dragdrop_reply[obj.object_cnt].clicked == 0){ dragdrop_reply[obj.object_cnt].clicked = 1;xml_div.style.backgroundColor = back_color;}else{dragdrop_reply[obj.object_cnt].clicked = 0;xml_div.style.backgroundColor = no_color;};} ,false);\
1052
    };\
1053
    break;\
1054
   case 3:\
1055
    if(isTouch ){\
1056
     xml_div.addEventListener('touchstart',function(evt){ if(slidergroup[obj.object_cnt] == null ){ slidergroup[obj.object_cnt] = obj;xml_div.style.backgroundColor = back_color;}else{ slidergroup[obj.object_cnt] = null;xml_div.style.backgroundColor = no_color;};} ,false);\
1057
    }else{\
1058
     xml_div.addEventListener('mousedown' ,function(evt){ if(slidergroup[obj.object_cnt] == null ){ slidergroup[obj.object_cnt] = obj;xml_div.style.backgroundColor = back_color;}else{ slidergroup[obj.object_cnt] = null;xml_div.style.backgroundColor = no_color;};} ,false);\
1059
    };\
1060
    break;\
1061
   case 4:slidergroup[obj.object_cnt] = obj;break;\
1062
   case 5:slidergroup[obj.object_cnt] = obj;\
1063
    canvas_div.addEventListener('mousemove',function(evt){if(!dragging){return;};mouse = getMouse(evt,xml_div);xy = multisnap_check( mouse.x,mouse.y,obj.use_snap);xml_div.style.left = xy[0] - obj.offset[0] - obj.transform[4] + 'px';xml_div.style.top = xy[1] - obj.offset[1] - obj.transform[5] + 'px';},false);\
1064
    canvas_div.addEventListener('mouseup',function(evt){dragging = false;xml_div.style.backgroundColor = no_color;dragdrop_reply[obj.object_cnt] = {object_cnt:obj.object_cnt,type:obj.onclick,x:xy[0],y:xy[1],r:0,angle:obj.angle,clicked:0};obj.x[0] = xy[0];obj.y[0] = xy[1];},false);\
1065
    xml_div.addEventListener('mousedown', function(evt){if(dragging){dragging = false;xml_div.style.backgroundColor = no_color;}else{dragging = true;xml_div.style.backgroundColor = back_color;};},false);\
1066
    break;\
1067
   default: break;\
1068
  };\
1069
 };\
1070
 return;\
1071
};");
1072
 
1073
/*
1074
console.log('angle='+obj.angle+'obj.use_center='+obj.use_center+'id='+obj.id+'xml_div.id = '+xml_div.id+' once ='+obj.once+' offset='+ obj.offset+' div x = '+xml_div.style.left+' div y ='+xml_div.style.top+' obj.x='+px2x(obj.x)+'obj.y='+px2y(obj.y));\
1075
*/
1076
break;
1077
 
1078
case DRAW_SGRAPH:
1079
/*
1080
 xstart = given
1081
 ystart = given
1082
 sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
1083
*/
1084
fprintf(js_include_file,"\n/* draw sgraph */\
1085
var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
1086
 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);};\
1087
 var ctx = obj.getContext(\"2d\");\
1088
 ctx.font = fontfamily;\
1089
 var minor_opacity = 0.8*opacity;\
1090
 ctx.clearRect(0,0,xsize,ysize);\
1091
 var zero_x = 0.1*xsize;\
1092
 var zero_y = 0.9*ysize;\
1093
 var snor_x;var snor_y;\
1094
 if( xstart != xmin){\
1095
  snor_x = 0.1*xsize;\
1096
 }\
1097
 else\
1098
 {\
1099
  snor_x = 0;\
1100
  xstart = xmin;\
1101
 };\
1102
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1103
 ctx.lineWidth = 2;\
1104
 ctx.beginPath();\
1105
 ctx.moveTo(xsize,zero_y);\
1106
 ctx.lineTo(zero_x,zero_y);\
1107
 ctx.lineTo(zero_x,0);\
1108
 ctx.stroke();\
1109
 ctx.closePath();\
1110
 ctx.beginPath();\
1111
 ctx.moveTo(zero_x,zero_y);\
1112
 ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
1113
 ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
1114
 ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
1115
 ctx.lineTo(zero_x + snor_x,zero_y);\
1116
 ctx.stroke();\
1117
 ctx.closePath();\
1118
 ctx.beginPath();\
1119
 var num = xstart;\
1120
 var flipflop = 1;\
1121
 var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
1122
 var txtsize;var txt_marge=step_x - 5;\
1123
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1124
  txtsize = ctx.measureText(num).width;\
1125
  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
1126
  if( flipflop == 1){\
1127
   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
1128
  }\
1129
  else\
1130
  {\
1131
   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
1132
  };\
1133
  num = num + xmajor;\
1134
 };\
1135
 ctx.stroke();\
1136
 ctx.closePath();\
1137
 ctx.lineWidth = 1;\
1138
 ctx.beginPath();\
1139
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1140
   ctx.moveTo(x,zero_y);\
1141
   ctx.lineTo(x,0);\
1142
 };\
1143
 ctx.stroke();\
1144
 ctx.closePath();\
1145
 if( xminor > 1){\
1146
  ctx.lineWidth = 0.5;\
1147
  ctx.beginPath();\
1148
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1149
  var minor_step_x = step_x / xminor;\
1150
  var nx;\
1151
  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
1152
    num = 1;\
1153
    for(var p = 1 ; p < xminor ; p++){\
1154
     nx = x + num*minor_step_x;\
1155
     ctx.moveTo(nx,zero_y);\
1156
     ctx.lineTo(nx,0);\
1157
     num++;\
1158
    };\
1159
  };\
1160
  ctx.stroke();\
1161
  ctx.closePath();\
1162
  ctx.beginPath();\
1163
  ctx.lineWidth = 2;\
1164
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1165
  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1166
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
1167
  };\
1168
  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
1169
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
1170
  };\
1171
  ctx.stroke();\
1172
  ctx.closePath();\
1173
  ctx.lineWidth = 0.5;\
1174
 };\
1175
 xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
1176
 if( ystart != ymin){\
1177
  snor_y = 0.1*ysize;\
1178
 }\
1179
 else\
1180
 {\
1181
  snor_y = 0;\
1182
  ystart = ymin;\
1183
 };\
1184
 ctx.lineWidth = 2;\
1185
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1186
 ctx.beginPath();\
1187
 ctx.moveTo(zero_x,zero_y);\
1188
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
1189
 ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
1190
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
1191
 ctx.lineTo(zero_x,zero_y - snor_y);\
1192
 ctx.stroke();\
1193
 ctx.closePath();\
1194
 ctx.beginPath();\
1195
 ctx.lineWidth = 1;\
1196
 num = ystart;\
1197
 var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
1198
 for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
1199
  ctx.moveTo(zero_x,y);\
1200
  ctx.lineTo(xsize,y);\
1201
  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
1202
  num = num + ymajor;\
1203
 };\
1204
 ctx.stroke();\
1205
 ctx.closePath();\
1206
 if( yminor > 1){\
1207
  ctx.lineWidth = 0.5;\
1208
  ctx.beginPath();\
1209
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1210
  var minor_step_y = step_y / yminor;\
1211
  var ny;\
1212
  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
1213
   num = 1;\
1214
   for(var p = 1 ;p < yminor;p++){\
1215
     ny = y + num*minor_step_y;\
1216
     ctx.moveTo(zero_x,ny);\
1217
     ctx.lineTo(xsize,ny);\
1218
     num++;\
1219
    };\
1220
  };\
1221
  ctx.stroke();\
1222
  ctx.closePath();\
1223
  ctx.lineWidth = 2;\
1224
  ctx.beginPath();\
1225
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1226
  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
1227
   ctx.moveTo(zero_x,y);\
1228
   ctx.lineTo(zero_x+12,y);\
1229
  };\
1230
  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
1231
   ctx.moveTo(zero_x,y);\
1232
   ctx.lineTo(zero_x+6,y);\
1233
  };\
1234
  ctx.stroke();\
1235
  ctx.closePath();\
1236
 };\
1237
 ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
1238
 if( typeof(legend%d)  !== 'undefined' ){\
1239
  ctx.globalAlpha = 1.0;\
1240
  var y_offset = 2*font_size;\
1241
  var txt;var txt_size;\
1242
  var x_offset = xsize - 2*font_size;\
1243
  var l_length = legend%d.length;var barcolor = new Array();\
1244
  if( typeof(legendcolors%d) !== 'undefined' ){\
1245
   for(var p = 0 ; p < l_length ; p++){\
1246
    barcolor[p] = legendcolors%d[p];\
1247
   };\
1248
  }else{\
1249
   if( barcolor.length == 0 ){\
1250
    for(var p = 0 ; p < l_length ; p++){\
1251
     barcolor[p] = stroke_color;\
1252
    };\
1253
   };\
1254
  };\
1255
  for(var p = 0; p < l_length; p++){\
1256
   ctx.fillStyle = barcolor[p];\
1257
   txt = legend%d[p];\
1258
   txt_size = ctx.measureText(txt).width;\
1259
   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
1260
   y_offset = parseInt(y_offset + 1.5*font_size);\
1261
  };\
1262
 };\
1263
 if( typeof(xaxislabel) !== 'undefined' ){\
1264
   ctx.fillStyle = \'#000000\';\
1265
   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
1266
   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
1267
 };\
1268
 if( typeof(yaxislabel) !== 'undefined'){\
1269
   ctx.save();\
1270
   ctx.fillStyle = \'#000000\';\
1271
   var txt_size = ctx.measureText(yaxislabel).width;\
1272
   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
1273
   ctx.rotate(-0.5*Math.PI);\
1274
   ctx.fillText(yaxislabel,0,0);\
1275
   ctx.restore();\
1276
 };\
1277
};",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);
1278
break;
1279
 
1280
case DRAW_NUMBERLINE:
1281
fprintf(js_include_file,"\n/* draw numberline */\
1282
var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
1283
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
1284
 var ctx = obj.getContext(\"2d\");\
1285
 ctx.lineWidth = linewidth || 1;\
1286
 ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
15313 schaersvoo 1287
 ctx.font = fontfamily || 'Arial 12px';\
15111 schaersvoo 1288
 var fontsize = parseInt(ctx.font);\
1289
 ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
1290
 x1 = x2px(x1);\
1291
 x0 = x2px(x0);\
1292
 y0 = y2px(y0);\
1293
 y1 = y2px(y1);\
1294
 var sub_devision = -1;\
1295
 if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
1296
 var ybase1 = parseInt( y0 + fontsize + 2 );\
1297
 var ybase2 = parseInt( ybase1 + fontsize + 2 );\
1298
 var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
1299
 var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
1300
 xmajor = x2px(xmajor) - x2px(0);\
1301
 var i;var len;var p;\
1302
 xminor = xmajor / xminor;\
1303
 ctx.beginPath();\
1304
 for(p = x0 ; p < x1 ; p = p + xmajor){\
1305
  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
1306
  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
1307
   ctx.moveTo(s,y0);\
1308
   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
1309
   i++;\
1310
  };\
1311
 };\
1312
 ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
1313
 ctx.closePath();\
1314
 ctx.stroke();\
1315
 if( use_axis_numbering >-1 ){\
1316
  var str = x_strings[use_axis_numbering];\
1317
  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1318
  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
1319
  ctx.beginPath();\
1320
  if( x_strings_up[use_axis_numbering] == null){\
1321
   for(var p = 0 ; p < len ; p = p+2){\
1322
    var x_nums = x2px(eval(str[p]));\
1323
    var x_text = str[p+1];\
1324
    corr = ctx.measureText(x_text).width;\
1325
    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1326
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
1327
   };\
1328
  }\
1329
  else\
1330
  {\
1331
   for(var p = 0 ; p < len ; p = p+2){\
1332
    x_nums = x2px(eval(str[p]));\
1333
    x_text = str[p+1];\
1334
    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
1335
    ctx.save();\
1336
    ctx.translate(x_nums+0.5*fontsize, corr);\
1337
    ctx.rotate(-1.5708);\
1338
    ctx.fillText(x_text,0,0);\
1339
    ctx.restore();\
1340
   };\
1341
  }\
1342
 }\
1343
 else\
1344
 {\
1345
  var corr;var num;var flipflop = 0;var off = ybase1;\
1346
  var prec = parseInt(Math.log(precision)/Math.log(10));\
1347
  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
1348
   num = (px2x(p)).toFixed(prec);\
1349
   corr = ctx.measureText(num).width;\
1350
   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1351
   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
1352
  };\
1353
 };\
1354
};",canvas_root_id);
1355
break;
1356
 
1357
case DRAW_GRID:/* not used for userdraw */
1358
fprintf(js_include_file,"\n/* draw grid */\
1359
var draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
1360
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);};\
1361
var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
1362
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
1363
ctx.save();\
1364
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1365
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
1366
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
1367
ctx.font = font_family;\
1368
var barcolor = new Array();\
1369
var xstep = xsize*xmajor/(xmax - xmin);\
1370
var ystep = ysize*ymajor/(ymax - ymin);\
1371
var x2step = xstep / xminor;\
1372
var y2step = ystep / yminor;\
1373
var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
1374
if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
1375
if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
1376
ctx.beginPath();\
1377
ctx.lineWidth = line_width;\
1378
ctx.strokeStyle = stroke_color;\
1379
for(var p = zero_x ; p < xsize; p = p + xstep){\
1380
 ctx.moveTo(p,0);\
1381
 ctx.lineTo(p,ysize);\
1382
};\
1383
for(var p = zero_x ; p > 0; p = p - xstep){\
1384
 ctx.moveTo(p,0);\
1385
 ctx.lineTo(p,ysize);\
1386
};\
1387
for(var p = zero_y ; p < ysize; p = p + ystep){\
1388
 ctx.moveTo(0,p);\
1389
 ctx.lineTo(xsize,p);\
1390
};\
1391
for(var p = zero_y ; p > 0; p = p - ystep){\
1392
 ctx.moveTo(0,p);\
1393
 ctx.lineTo(xsize,p);\
1394
};\
1395
if( typeof(xaxislabel) !== 'undefined' ){\
1396
 ctx.save();\
15313 schaersvoo 1397
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1398
 var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
1399
 ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
1400
 ctx.restore();\
1401
};\
1402
if( typeof(yaxislabel) !== 'undefined' ){\
1403
 ctx.save();\
15313 schaersvoo 1404
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1405
 var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
1406
 ctx.translate(zero_x+tics_length + font_size,corr);\
1407
 ctx.rotate(-0.5*Math.PI);\
1408
 ctx.fillText(yaxislabel,0,0);\
1409
 ctx.restore();\
1410
};\
1411
ctx.stroke();\
1412
ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
1413
 
1414
if( use_axis == 1 ){
1415
fprintf(js_include_file,"\
1416
 ctx.save();\
1417
 ctx.beginPath();\
1418
 ctx.strokeStyle = stroke_color;\
1419
 ctx.lineWidth = 0.6*line_width;\
1420
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1421
  ctx.moveTo(p,0);\
1422
  ctx.lineTo(p,ysize);\
1423
 };\
1424
 for(var p = zero_x ; p > 0; p = p - x2step){\
1425
  ctx.moveTo(p,0);\
1426
  ctx.lineTo(p,ysize);\
1427
 };\
1428
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1429
  ctx.moveTo(0,p);\
1430
  ctx.lineTo(xsize,p);\
1431
 };\
1432
 for(var p = zero_y ; p > 0; p = p - y2step){\
1433
  ctx.moveTo(0,p);\
1434
  ctx.lineTo(xsize,p);\
1435
 };\
1436
 ctx.stroke();\
1437
 ctx.closePath();\
1438
 ctx.beginPath();\
1439
 ctx.lineWidth = 2*line_width;\
1440
 ctx.strokeStyle = axis_color;\
1441
 ctx.moveTo(0,zero_y);\
1442
 ctx.lineTo(xsize,zero_y);\
1443
 ctx.moveTo(zero_x,0);\
1444
 ctx.lineTo(zero_x,ysize);\
1445
 ctx.stroke();\
1446
 ctx.closePath();\
1447
 ctx.lineWidth = line_width+0.5;\
1448
 ctx.beginPath();\
1449
 for(var p = zero_x ; p < xsize; p = p + xstep){\
1450
  ctx.moveTo(p,zero_y-tics_length);\
1451
  ctx.lineTo(p,zero_y+tics_length);\
1452
 };\
1453
 for(var p = zero_x ; p > 0; p = p - xstep){\
1454
  ctx.moveTo(p,zero_y-tics_length);\
1455
  ctx.lineTo(p,zero_y+tics_length);\
1456
 };\
1457
 for(var p = zero_y ; p < ysize; p = p + ystep){\
1458
  ctx.moveTo(zero_x-tics_length,p);\
1459
  ctx.lineTo(zero_x+tics_length,p);\
1460
 };\
1461
 for(var p = zero_y ; p > 0; p = p - ystep){\
1462
  ctx.moveTo(zero_x-tics_length,p);\
1463
  ctx.lineTo(zero_x+tics_length,p);\
1464
 };\
1465
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1466
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1467
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1468
 };\
1469
 for(var p = zero_x ; p > 0; p = p - x2step){\
1470
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1471
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1472
 };\
1473
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1474
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1475
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1476
 };\
1477
 for(var p = zero_y ; p > 0; p = p - y2step){\
1478
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1479
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1480
 };\
1481
 ctx.stroke();\
1482
 ctx.closePath();\
1483
 ctx.restore();");
1484
}
1485
 
1486
if( use_axis_numbering != -1 ){
1487
fprintf(js_include_file,"\
1488
 ctx.save();\
1489
 ctx.fillColor = axis_color;\
1490
 ctx.strokeStyle = axis_color;\
1491
 ctx.lineWidth = 2*line_width;\
1492
 ctx.font = font_family;\
1493
 var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
1494
 if( x_strings[use_axis_numbering] != null ){\
1495
  var str = x_strings[use_axis_numbering];\
1496
  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1497
  ctx.beginPath();\
1498
  if( x_strings_up[use_axis_numbering] == null){\
1499
   for(var p = 0 ; p < len ; p = p+2){\
1500
    var x_nums = x2px(eval(str[p]));\
1501
    var x_text = str[p+1];\
1502
    corr = ctx.measureText(x_text).width;\
1503
    skip = 1.2*corr/xstep;\
1504
    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
1505
    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
1506
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
1507
    ctx.moveTo(x_nums,zero_y - tics_length);\
1508
    ctx.lineTo(x_nums,zero_y + tics_length);\
1509
   };\
1510
  }\
1511
  else\
1512
  {\
1513
   for(var p = 0 ; p < len ; p = p+2){\
1514
    var x_nums = x2px(eval(str[p]));\
1515
    var x_text = str[p+1];\
1516
    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
1517
    if( corr > ysize ){corr = ysize;};\
1518
    ctx.save();\
1519
    ctx.translate(x_nums+0.25*font_size, corr);\
1520
    ctx.rotate(-1.5708);\
1521
    ctx.fillText(x_text,0,0);\
1522
    ctx.restore();\
1523
    ctx.moveTo(x_nums,zero_y - tics_length);\
1524
    ctx.lineTo(x_nums,zero_y + tics_length);\
1525
   };\
1526
  };\
1527
  ctx.closePath();\
1528
 }\
1529
 else\
1530
 {\
1531
  skip = 1;cnt = px2x(zero_x);\
1532
  prec = Math.log(precision)/(Math.log(10));\
1533
  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
1534
  for( var p = zero_x ; p < xsize ; p = p+xstep){\
1535
   if(skip == 0 ){\
1536
    disp_cnt = cnt.toFixed(prec);\
1537
    corr = ctx.measureText(disp_cnt).width;\
1538
    skip = parseInt(1.2*corr/xstep);\
1539
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
1540
   }\
1541
   else\
1542
   {\
1543
    skip--;\
1544
   };\
1545
   cnt = cnt + xmajor;\
1546
  };\
1547
  cnt = px2x(zero_x);skip = 1;\
1548
  for( var p = zero_x ; p > 0 ; p = p-xstep){\
1549
   if(skip == 0 ){\
1550
    disp_cnt = cnt.toFixed(prec);\
1551
    corr = ctx.measureText(disp_cnt).width;\
1552
    skip = parseInt(1.2*corr/xstep);\
1553
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
1554
   }\
1555
   else\
1556
   {\
1557
    skip--;\
1558
   };\
1559
   cnt = cnt - xmajor;\
1560
  };\
1561
 };\
1562
 if( y_strings != null ){\
1563
  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
1564
  ctx.beginPath();\
1565
  for(var p = 0 ; p < len ; p = p+2){\
1566
   var y_nums = y2px(eval(y_strings[p]));\
1567
   var y_text = y_strings[p+1];\
1568
   corr = 2 + tics_length + ctx.measureText(y_text).width;\
1569
   if( corr > zero_x){corr = parseInt(zero_x+2); }\
1570
   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
1571
   ctx.moveTo(zero_x - tics_length,y_nums);\
1572
   ctx.lineTo(zero_x + tics_length,y_nums);\
1573
  };\
1574
  ctx.closePath();\
1575
 }\
1576
 else\
1577
 {\
1578
  if(f_x == 1){ corr = 1.5*tics_length; }\
1579
  cnt = px2y(zero_y);skip = 1;\
1580
  for( var p = zero_y ; p < ysize ; p = p+ystep){\
1581
   if(skip == 0 ){\
1582
    skip = parseInt(1.4*font_size/ystep);\
1583
    disp_cnt = cnt.toFixed(prec);\
1584
    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1585
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
1586
   }\
1587
   else\
1588
   {\
1589
    skip--;\
1590
   };\
1591
   cnt = cnt - ymajor;\
1592
  };\
1593
  corr = 0;cnt = px2y(zero_y);skip = 1;\
1594
  if(f_x == 1){ corr = 1.5*tics_length; }\
1595
  for( var p = zero_y ; p > 0 ; p = p-ystep){\
1596
   if(skip == 0 ){\
1597
    skip = parseInt(1.4*font_size/ystep);\
1598
    disp_cnt = cnt.toFixed(prec);\
1599
    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1600
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
1601
   }\
1602
   else\
1603
   {\
1604
    skip--;\
1605
   };\
1606
   cnt = cnt + ymajor;\
1607
  };\
1608
 };\
1609
 ctx.stroke();\
1610
 ctx.restore();");
1611
}
1612
 
1613
if( legend_cnt != -1 ){
1614
fprintf(js_include_file,"ctx.save();\
1615
 ctx.globalAlpha = 1.0;\
15313 schaersvoo 1616
 ctx.font = \"bold \"+font_size+\"px Arial\";\
15111 schaersvoo 1617
 var y_offset = 2*font_size;\
1618
 var txt;var txt_size;\
1619
 var x_offset = xsize - 2*font_size;\
1620
 var l_length = legend0.length;\
1621
 if( typeof(legendcolors0) !== 'undefined' ){\
1622
  for(var p = 0 ; p < l_length ; p++){\
1623
    barcolor[p] = legendcolors0[p];\
1624
  };\
1625
 }\
1626
 else\
1627
 {\
1628
  if( barcolor.length == 0 ){\
1629
   for(var p = 0 ; p < l_length ; p++){\
1630
    barcolor[p] = stroke_color;\
1631
   };\
1632
  };\
1633
 };\
1634
 for(var p = 0; p < l_length; p++){\
1635
  ctx.fillStyle = barcolor[p];\
1636
  txt = legend0[p];\
1637
  txt_size = ctx.measureText(txt).width;\
1638
  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
1639
  y_offset = parseInt(y_offset + 1.5*font_size);\
1640
 };\
1641
 ctx.restore();");
1642
}
1643
 
1644
if( barchart_cnt != 0 ){
1645
fprintf(js_include_file,"ctx.save();\
1646
 var num_barcharts = 0;\
1647
 var bar_name = eval('barchart_0');\
1648
 while( typeof(bar_name) !== 'undefined' ){\
1649
    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
1650
 };\
1651
 var bar_width = parseInt(0.8*x2step/(num_barcharts));\
1652
 for(var i=0 ; i< num_barcharts ; i++){\
1653
  bar_name = eval('barchart_'+i);\
1654
  var bar_x = new Array();\
1655
  var bar_y = new Array();\
1656
  var lb = bar_name.length;\
1657
  var idx = 0;\
1658
  var dx = parseInt(0.5*i*bar_width);\
1659
  for( var p = 0 ; p < lb ; p = p + 3 ){\
1660
   bar_x[idx] = x2px(bar_name[p]);\
1661
   bar_y[idx] = y2px(bar_name[p+1]);\
1662
   barcolor[idx] = bar_name[p+2];\
1663
   idx++;\
1664
  };\
1665
  ctx.globalAlpha = fill_opacity;\
1666
  for( var p = 0; p < idx ; p++ ){\
1667
   ctx.beginPath();\
1668
   ctx.strokeStyle = barcolor[p];\
1669
   ctx.fillStyle = barcolor[p];\
1670
   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
1671
   ctx.fill();\
1672
   ctx.stroke();\
1673
   ctx.closePath();\
1674
  };\
1675
 };\
1676
 ctx.restore();");
1677
}
1678
 
1679
if( linegraph_cnt != 0 ){
1680
fprintf(js_include_file,"ctx.save();\
1681
 ctx.globalAlpha = 1.0;\
1682
 var i = 0;\
1683
 var line_name = eval('linegraph_'+i);\
1684
 while ( typeof(line_name) !== 'undefined' ){\
1685
  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
1686
  ctx.lineWidth = parseInt(line_name[1]);\
1687
  if(line_name[2] == \"1\"){\
1688
   var d1 = parseInt(line_name[3]);\
1689
   var d2 = parseInt(line_name[4]);\
1690
   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
1691
  }\
1692
  else\
1693
  {\
1694
  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
1695
  };\
1696
  var data_x = new Array();var data_y = new Array();\
1697
  var lb = line_name.length;var idx = 0;\
1698
  for( var p = 5 ; p < lb ; p = p + 2 ){\
1699
   data_x[idx] = x2px(line_name[p]);\
1700
   data_y[idx] = y2px(line_name[p+1]);\
1701
   idx++;\
1702
  };\
1703
  for( var p = 0; p < idx ; p++){\
1704
   ctx.beginPath();\
1705
   ctx.moveTo(data_x[p],data_y[p]);\
1706
   ctx.lineTo(data_x[p+1],data_y[p+1]);\
1707
   ctx.stroke();\
1708
   ctx.closePath();\
1709
  };\
1710
  i++;\
1711
  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
1712
 };\
1713
 ctx.restore();return;");
1714
}
1715
fprintf(js_include_file,"};");
1716
 
1717
break;
1718
 
1719
case DRAW_PIECHART:
1720
fprintf(js_include_file,"\n/* draw piecharts */\
1721
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1722
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
1723
 var obj;\
1724
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1725
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
1726
 }\
1727
 else\
1728
 {\
1729
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1730
 };\
1731
 var center_text = use_offset || 0;\
1732
 var ld = data_color_list.length;\
1733
 var sum = 0;\
1734
 var idx = 0;\
1735
 var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
1736
 var colors = new Array();\
1737
 var data = new Array();\
1738
 for(var p = 0;p < ld; p = p + 2){\
1739
  data[idx] = parseFloat(data_color_list[p]);\
1740
  sum = sum + data[idx];\
1741
  colors[idx] = data_color_list[p+1];\
1742
  idx++;\
1743
 };\
1744
 if( use_filled > 1 ){\
1745
  var i = 2;\
1746
  for(var p = 0 ;  p < idx ; p++){\
1747
   if(i > 5 ){ i = 2; };\
1748
   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
1749
  };\
1750
 };\
1751
 var ctx = obj.getContext(\"2d\");\
1752
 ctx.save();\
1753
 var angle;\
1754
 var angle_end = 0;\
1755
 var offset = Math.PI / 2;\
1756
 ctx.globalAlpha = fill_opacity;\
1757
 var angles = [];\
1758
 for(var p=0; p < idx; p++){\
1759
  ctx.beginPath();\
1760
  ctx.moveTo(x_center,y_center);\
1761
  angle = Math.PI * (2 * data[p] / sum);\
1762
  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
1763
  ctx.lineTo(x_center, y_center);\
1764
  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
1765
  ctx.fill();\
1766
  ctx.closePath();\
1767
  angles.push(angle_end + angle - offset);\
1768
  angle_end  = angle_end + angle;\
1769
 };\
1770
 if(typeof(legend0) !== 'undefined'){\
1771
  var legenda = eval(\"legend\"+legend_cnt);\
1772
  ctx.globalAlpha = 1.0;\
1773
  ctx.font = font_family;\
1774
  var y_offset = font_size;\
1775
  var x_offset = 0;\
1776
  var txt;var txt_size;\
1777
  for(var p = 0; p < idx; p++){\
1778
   ctx.fillStyle = colors[p];\
1779
   txt = legenda[p];\
1780
   txt_size = ctx.measureText(txt).width + 2;\
1781
   if(center_text == 4){\
1782
    ctx.save();\
1783
    ctx.translate(x_center, y_center);\
1784
    ctx.rotate(angles[p]);\
1785
    ctx.fillText(txt,radius-txt_size,0);\
1786
    ctx.restore();\
1787
   }\
1788
   else\
1789
   {\
1790
    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
1791
    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
1792
    y_offset = parseInt(y_offset + 1.5*font_size);\
1793
   };\
1794
  };\
1795
 };\
1796
 ctx.restore();\
1797
};",canvas_root_id,canvas_root_id,canvas_root_id);
1798
break;
1799
 
1800
case DRAW_JSBOXPLOT:
1801
fprintf(js_include_file,"\n/* draw jsboxplots */\
1802
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1803
function statistics(data){\
1804
 var len = data.length;\
1805
 var min = 10000000;\
1806
 var max = -10000000;\
1807
 var sum = 0;var d;\
1808
 for(var i=0;i<len;i++){\
1809
  d = data[i];\
1810
  if(d < min){min = d;}else{if(d > max){max = d;};};\
1811
  sum+= parseFloat(data[i]);\
1812
 };\
1813
 var mean = parseFloat(sum/len);\
1814
 var variance = 0;\
1815
 for(var i=0;i<len;i++){\
1816
  d = data[i];\
1817
  variance += (d - mean)*(d - mean);\
1818
 };\
1819
 variance = parseFloat(variance / len);\
1820
 var std = Math.sqrt(variance);\
1821
 data.sort(function(a,b){return a - b;});\
1822
 var median;var Q1;var Q3;\
1823
 var half = Math.floor(0.5*len);\
1824
 var q1 = Math.floor(0.25*len);\
1825
 var q3 = Math.floor(0.75*len);\
1826
 var half = Math.floor(0.5*len);\
1827
 if(len %%2 == 1){\
1828
  median = data[half];\
1829
  Q1 = data[q1];\
1830
  Q3 = data[q3];\
1831
 }\
1832
 else\
1833
 {\
1834
  median = (data[half - 1] + data[half] )/2;\
1835
  Q1 = (data[q1 - 1] + data[q1] )/2;\
1836
  Q3 = (data[q3 - 1] + data[q3] )/2;\
1837
 };\
1838
 return [min,Q1,median,Q3,max];\
1839
};");
1840
break;
1841
 
1842
case DRAW_BOXPLOT:
1843
fprintf(js_include_file,"\n/* draw boxplots */\
1844
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1845
draw_boxplot = function(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1){\
1846
 var obj;\
1847
 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);};\
1848
 var ctx = obj.getContext(\"2d\");\
1849
 ctx.clearRect(0,0,xsize,ysize);\
1850
 ctx.save();\
1851
 ctx.lineWidth = line_width;\
1852
 ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1853
 var colors = new Array(2);\
1854
 colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
1855
 colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1856
 if( use_filled > 1 ){\
1857
   var pat = create_Pattern(0,0,3,colors[0]);\
1858
   all_fill_patterns[0] = pat;\
1859
   pat = create_Pattern(0,0,4,colors[1]);\
1860
   all_fill_patterns[1] = pat;\
1861
 };\
1862
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
1863
 var hh = 0.25*hw;\
1864
 switch(boxplot_source){\
1865
  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
1866
  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
1867
  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
1868
  default: break;\
1869
 };\
1870
 var min,Q1,median,Q3,max;\
1871
 if(xy == 1 ){\
1872
  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
1873
  hh = Math.abs(y2px(hh) - y2px(ystart));\
1874
  hw = Math.abs(y2px(hw) - y2px(ystart));\
1875
  cxy = y2px(cxy);\
1876
  ctx.beginPath();\
1877
  ctx.moveTo(min,cxy);\
1878
  ctx.lineTo(Q1,cxy);\
1879
  ctx.moveTo(Q3,cxy);\
1880
  ctx.lineTo(max,cxy);\
1881
  ctx.moveTo(min,cxy+hh);\
1882
  ctx.lineTo(min,cxy-hh);\
1883
  ctx.moveTo(max,cxy+hh);\
1884
  ctx.lineTo(max,cxy-hh);\
1885
  ctx.closePath();\
1886
  ctx.stroke();\
1887
  ctx.beginPath();\
1888
  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
1889
  ctx.closePath();\
1890
  if( use_filled != 0 ){\
1891
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1892
   ctx.fill();\
1893
  };\
1894
  ctx.stroke();\
1895
  ctx.beginPath();\
1896
  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
1897
  ctx.closePath();\
1898
  if( use_filled != 0 ){\
1899
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1900
   ctx.fill();\
1901
  };\
1902
  ctx.stroke();\
1903
 }else{\
1904
  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
1905
  hh = Math.abs(x2px(hh) - x2px(xstart));\
1906
  hw = Math.abs(x2px(hw) - x2px(xstart));\
1907
  cxy = x2px(cxy);\
1908
  ctx.beginPath();\
1909
  ctx.moveTo(cxy,min);\
1910
  ctx.lineTo(cxy,Q1);\
1911
  ctx.moveTo(cxy,Q3);\
1912
  ctx.lineTo(cxy,max);\
1913
  ctx.moveTo(cxy + hh,min);\
1914
  ctx.lineTo(cxy - hh,min);\
1915
  ctx.moveTo(cxy + hh,max);\
1916
  ctx.lineTo(cxy - hh,max);\
1917
  ctx.closePath;\
1918
  ctx.stroke();\
1919
  ctx.beginPath();\
1920
  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
1921
  ctx.closePath();\
1922
  if( use_filled != 0 ){\
1923
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1924
   ctx.fill();\
1925
  };\
1926
  ctx.stroke();\
1927
  ctx.beginPath();\
1928
  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
1929
  ctx.closePath();\
1930
  if( use_filled != 0 ){\
1931
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1932
   ctx.fill();\
1933
  };\
1934
  ctx.stroke();\
1935
 };\
1936
 ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
1937
break;
1938
 
1939
case DRAW_CENTERSTRING:
1940
fprintf(js_include_file,"\n/* draw centerstring */\
1941
var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
1942
 var obj;\
1943
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1944
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
1945
 }\
1946
 else\
1947
 {\
1948
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1949
 };\
1950
 var ctx = obj.getContext(\"2d\");\
1951
 ctx.save();\
1952
 ctx.clearRect(0,0,xsize,ysize);\
1953
 ctx.font = font_family;\
1954
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1955
 var stringwidth = ctx.measureText(text).width;\
1956
 var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
1957
 ctx.fillText(text,x,y2px(y));\
1958
 ctx.restore();\
1959
return;\
1960
};",canvas_root_id,canvas_root_id,canvas_root_id);
1961
break;
1962
 
1963
case DRAW_TEXTS:
1964
fprintf(js_include_file,"\n/* draw text */\
1965
var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
1966
 var obj;\
1967
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1968
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
1969
 }\
1970
 else\
1971
 {\
1972
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1973
 };\
1974
 var ctx = obj.getContext(\"2d\");\
1975
 if( font_family != 'null' ){\
1976
  ctx.font = font_family;\
1977
 }\
1978
 else\
1979
 {\
15313 schaersvoo 1980
  ctx.font = font_size+'px Arial';\
15111 schaersvoo 1981
 };\
1982
 if( use_offset == 3 ){if(angle2 < 0 ){ y = y + 0.8*font_size; x = x + (Math.cos(angle2))*font_size; }else{y = y - 0.8*font_size; x = x + (Math.sin(angle2))*font_size;};};\
1983
 if(angle2 == 0 && angle != 0){\
1984
  ctx.save();\
1985
  if(use_rotate == 1 ){\
1986
  ctx.rotate(angle*Math.PI/180);};\
1987
  ctx.restore();\
1988
 };\
1989
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1990
 if(angle2 != 0){\
1991
  ctx.save();\
1992
  ctx.translate(x,y);\
1993
  ctx.rotate((360-angle2)*(Math.PI / 180));\
1994
  ctx.fillText(text,0,0);\
1995
  ctx.restore();\
1996
 }\
1997
 else\
1998
 {\
1999
  ctx.fillText(text,x,y);\
2000
 };\
2001
 return;\
2002
};",canvas_root_id,canvas_root_id,canvas_root_id);
2003
break;
2004
 
2005
case DRAW_INPUTS:
2006
/* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
2007
fprintf(js_include_file,"\n/* draw static input fields */\
2008
if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
2009
var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
2010
var input = document.createElement(\"input\");\
2011
input.setAttribute(\"id\",\"canvas_input\"+num);\
2012
input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
2013
if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
2014
input.setAttribute(\"size\",size);\
2015
input.setAttribute(\"value\",value);\
2016
input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
2017
if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
2018
canvas_div.appendChild(input);\
2019
if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
2020
input_cnt++;\
2021
};\
2022
function center_input(id,x,y,css_class){\
2023
 var inp = document.getElementById(id);\
2024
 var pos = inp.getBoundingClientRect();\
2025
 var center_x = parseInt(x - 0.5*(pos.width));\
2026
 var center_y = parseInt(y - 0.5*(pos.height));\
2027
 try{if(css_class != \"none\"){inp.setAttribute(\"class\",css_class);};inp.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+center_x+\"px;top:\"+center_y+\"px;\");}\
2028
 catch(e){console.log('error :'+e);return;};\
2029
};");
2030
break;
2031
 
2032
case DRAW_TEXTAREAS:
2033
fprintf(js_include_file,"\n/* draw text area inputfields */\
2034
var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
2035
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
2036
var textarea = document.createElement(\"textarea\");\
2037
textarea.setAttribute(\"id\",\"canvas_input\"+num);\
2038
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
2039
textarea.setAttribute(\"cols\",cols);\
2040
textarea.setAttribute(\"rows\",rows);\
2041
textarea.value = value;\
2042
if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
2043
canvas_div.appendChild(textarea);};");
2044
break;
2045
 
2046
case DRAW_PIXELS:
2047
fprintf(js_include_file,"\n/* draw pixel */\
2048
var draw_setpixel = function(x,y,color,opacity,pixelsize){\
2049
 var idx = 2000+Math.ceil(1000*(Math.random()));\
2050
 var canvas = create_canvas%d(idx,xsize,ysize);\
2051
 var d = 0.5*pixelsize;\
2052
 var ctx = canvas.getContext(\"2d\");\
2053
 if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
2054
 ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
2055
 ctx.clearRect(0,0,xsize,ysize);\
2056
 for(var p=0; p<x.length;p++){\
2057
  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
2058
 };\
2059
 ctx.fill();ctx.stroke();\
2060
};",canvas_root_id);
2061
break;
2062
 
2063
case DRAW_CLOCK:
2064
fprintf(js_include_file,"\n/* command clock */\
2065
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
2066
var clock_ctx = clock_canvas.getContext(\"2d\");\
2067
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
2068
 clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
2069
 clock_ctx.save();\
2070
 clock_ctx.globalAlpha = clock_bg_opacity;\
2071
 this.type = type || 0;\
2072
 this.interaction = interaction || 0;\
2073
 this.H = H;\
2074
 this.M = M;\
2075
 this.S = S;\
2076
 this.xc = xc || xsize/2;\
2077
 this.yc = yc || ysize/2;\
2078
 this.radius = radius || xsize/4;\
2079
 var font_size = parseInt(0.2*this.radius);\
2080
 this.H_color = h_color || \"black\";\
2081
 this.M_color = m_color || \"black\";\
2082
 this.S_color = s_color || \"black\";\
2083
 this.fg_color = fg_color || \"black\";\
2084
 this.bg_color = bg_color || \"white\";\
2085
 clock_ctx.translate(this.xc,this.yc);\
2086
 clock_ctx.beginPath();\
2087
 clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
2088
 clock_ctx.fillStyle = this.bg_color;\
2089
 clock_ctx.fill();\
2090
 clock_ctx.closePath();\
2091
 clock_ctx.beginPath();\
2092
 clock_ctx.font = font_size+\"px Arial\";\
2093
 clock_ctx.fillStyle = this.fg_color;\
2094
 clock_ctx.textAlign = \"center\";\
2095
 clock_ctx.textBaseline = 'middle';\
2096
 var angle;var x1,y1,x2,y2;\
2097
 var angle_cos;var angle_sin;\
2098
 clock_ctx.globalAlpha = clock_fg_opacity;\
2099
 switch(type){\
2100
 case 0:clock_ctx.beginPath();\
2101
 for(var p = 1; p <= 12 ; p++){\
2102
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2103
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2104
  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2105
  clock_ctx.moveTo(x1,y1);\
2106
  clock_ctx.lineTo(x2,y2);\
2107
 };\
2108
 for(var p = 1; p <= 60 ; p++){\
2109
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2110
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2111
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2112
  clock_ctx.moveTo(x1,y1);\
2113
  clock_ctx.lineTo(x2,y2);\
2114
 };\
2115
 clock_ctx.closePath();\
2116
 clock_ctx.stroke();\
2117
 break;\
2118
 case 1:\
2119
 for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.9*this.radius*Math.cos(angle);y1 = 0.9*this.radius*Math.sin(angle);clock_ctx.fillText(p, x1, y1);};break;\
2120
 case 2:\
2121
 for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.8*this.radius*Math.cos(angle);y1 = 0.8*this.radius*Math.sin(angle);clock_ctx.fillText(p, x1, y1);};\
2122
 clock_ctx.beginPath();\
2123
 for(var p = 1; p <= 12 ; p++){\
2124
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2125
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2126
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2127
  clock_ctx.moveTo(x1,y1);\
2128
  clock_ctx.lineTo(x2,y2);\
2129
 };\
2130
 for(var p = 1; p <= 60 ; p++){\
2131
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2132
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2133
  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2134
  clock_ctx.moveTo(x1,y1);\
2135
  clock_ctx.lineTo(x2,y2);\
2136
 };\
2137
 clock_ctx.closePath();\
2138
 clock_ctx.stroke();\
2139
 break;\
2140
 };\
2141
 angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
2142
 clock_ctx.rotate(angle);\
2143
 clock_ctx.beginPath();\
2144
 clock_ctx.moveTo(-3, -2);\
2145
 clock_ctx.lineTo(-3, 2);\
2146
 clock_ctx.lineTo(this.radius * 0.6, 1);\
2147
 clock_ctx.lineTo(this.radius  * 0.6, -1);\
2148
 clock_ctx.fillStyle = this.H_color;\
2149
 clock_ctx.fill();\
2150
 clock_ctx.rotate(-angle);\
2151
 angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
2152
 clock_ctx.rotate(angle);\
2153
 clock_ctx.beginPath();\
2154
 clock_ctx.moveTo(-3, -2);\
2155
 clock_ctx.lineTo(-3, 2);\
2156
 clock_ctx.lineTo(this.radius  * 0.8, 1);\
2157
 clock_ctx.lineTo(this.radius  * 0.8, -1);\
2158
 clock_ctx.fillStyle = this.M_color;\
2159
 clock_ctx.fill();\
2160
 clock_ctx.rotate(-angle);\
2161
 angle = (this.S - 15) * 2 * Math.PI / 60;\
2162
 clock_ctx.rotate(angle);\
2163
 clock_ctx.beginPath();\
2164
 clock_ctx.moveTo(0,0);\
2165
 clock_ctx.lineTo(this.radius  * 0.9, 1);\
2166
 clock_ctx.lineTo(this.radius  * 0.9, -1);\
2167
 clock_ctx.strokeStyle = this.S_color;\
2168
 clock_ctx.stroke();\
2169
 clock_ctx.restore();\
2170
};",canvas_root_id,CLOCK_CANVAS);
2171
break;
2172
 
2173
case DRAW_LATTICE:
2174
fprintf(js_include_file,"\n/* draw lattice */\
2175
var draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_filled){\
2176
 var obj;\
2177
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2178
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
2179
 }\
2180
 else\
2181
 {\
2182
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2183
 };\
2184
 var ctx = obj.getContext(\"2d\");\
2185
 ctx.save();\
2186
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
2187
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
2188
 if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
2189
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2190
 var radius = line_width;\
2191
 var x = 0;\
2192
 var y = 0;\
2193
 var x_step_px = xsize/(xmax-xmin);\
2194
 var y_step_px = ysize/(ymax-ymin);\
2195
 var xv1 = dx1*x_step_px;\
2196
 var yv1 = dy1*y_step_px;\
2197
 var xv2 = dx2*x_step_px;\
2198
 var yv2 = dy2*y_step_px;\
2199
 for(var p = 0; p < n1 ;p++){\
2200
  x = p*xv1 + x0;\
2201
  y = p*yv1 + y0;\
2202
  for(var c = 0; c < n2 ; c++){\
2203
   ctx.beginPath();\
2204
   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
2205
   ctx.fill();\
2206
   ctx.stroke();\
2207
   ctx.closePath();\
2208
  };\
2209
 };\
2210
 ctx.restore();\
2211
 return;\
2212
};",canvas_root_id,canvas_root_id,canvas_root_id);
2213
break;
2214
 
2215
case DRAW_XYLOGSCALE:
2216
fprintf(js_include_file,"\n/* draw xylogscale */\
2217
var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,precision){\
2218
 var obj;\
2219
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2220
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
2221
 }\
2222
 else\
2223
 {\
2224
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2225
 };\
2226
 var ctx = obj.getContext(\"2d\");\
2227
 ctx.clearRect(0,0,xsize,ysize);\
2228
 ctx.save();\
2229
 var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
2230
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2231
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2232
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2233
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2234
 if(use_axis_numbering != -1){\
2235
  ctx.font = font_family;\
2236
  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
2237
  ymarge = parseInt(1.5*font_size);\
2238
  ctx.save();\
2239
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2240
  ctx.rect(0,0,xmarge,ysize);\
2241
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2242
  ctx.fill();\
2243
  ctx.restore();\
2244
 }else{xmarge = 0;ymarge = 0;};\
2245
 if( typeof(xaxislabel) !== 'undefined' ){\
2246
  ctx.save();\
15313 schaersvoo 2247
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2248
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2249
  corr =  ctx.measureText(xaxislabel).width;\
2250
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2251
  ctx.restore();\
2252
 };\
2253
 if( typeof(yaxislabel) !== 'undefined' ){\
2254
  ctx.save();\
15313 schaersvoo 2255
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2256
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2257
  corr = ctx.measureText(yaxislabel).width;\
2258
  ctx.translate(xmarge+font_size,corr+font_size);\
2259
  ctx.rotate(-0.5*Math.PI);\
2260
  ctx.fillText(yaxislabel,0,0);\
2261
  ctx.restore();\
2262
 };\
2263
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2264
 ctx.lineWidth = line_width;\
2265
 for(var p = x_min; p <= x_max ; p++){\
2266
  num = Math.pow(xlogbase,p);\
2267
  for(var i = 1 ; i < xlogbase ; i++){\
2268
   x_e = x2px(i*num);\
2269
   if( i == 1 ){\
2270
    ctx.lineWidth = line_width;\
2271
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2272
    if( use_axis_numbering != -1 && p > x_min){\
2273
      xtxt = xlogbase+'^'+p.toFixed(0);\
2274
      corr = 0.5*(ctx.measureText(xtxt).width);\
2275
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2276
    };\
2277
   }else{\
2278
    ctx.lineWidth = 0.2*line_width;\
2279
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2280
   };\
2281
   if( x_e >= xmarge ){\
2282
    ctx.beginPath();\
2283
    ctx.moveTo(x_e,0);\
2284
    ctx.lineTo(x_e,ysize - ymarge);\
2285
    ctx.stroke();\
2286
    ctx.closePath();\
2287
   };\
2288
  };\
2289
 };\
2290
 for(var p = y_min; p <= y_max ; p++){\
2291
  num = Math.pow(ylogbase,p);\
2292
  for(var i = 1 ; i < ylogbase ; i++){\
2293
   y_e = y2px(i*num);\
2294
   if( i == 1 ){\
2295
    ctx.lineWidth = line_width;\
2296
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2297
    if( use_axis_numbering != -1 && p > y_min){\
2298
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2299
    };\
2300
   }else{\
2301
    ctx.lineWidth = 0.2*line_width;\
2302
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2303
   };\
2304
   ctx.beginPath();\
2305
   ctx.moveTo(xmarge,y_e);\
2306
   ctx.lineTo(xsize,y_e);\
2307
   ctx.stroke();\
2308
   ctx.closePath();\
2309
  };\
2310
 };\
2311
 ctx.restore();\
2312
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2313
break;
2314
 
2315
case DRAW_XLOGSCALE:
2316
fprintf(js_include_file,"\n/* draw xlogscale */\
2317
var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,ymajor,yminor,precision){\
2318
 var obj;\
2319
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2320
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
2321
 }\
2322
 else\
2323
 {\
2324
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2325
 };\
2326
 var ctx = obj.getContext(\"2d\");\
2327
 ctx.clearRect(0,0,xsize,ysize);\
2328
 ctx.save();\
2329
 ctx.lineWidth = line_width;\
2330
 var prec = Math.log(precision)/Math.log(10);\
2331
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2332
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2333
 var y_min = 0;var y_max = ysize;var x_e;var corr;\
2334
 var xtxt;var ytxt;var num;var xmarge;var ymarge;\
2335
 if(use_axis_numbering != -1){\
2336
  ctx.font = font_family;\
2337
  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
2338
  ymarge = parseInt(1.5*font_size);\
2339
  ctx.save();\
2340
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2341
  ctx.rect(0,0,xmarge,ysize);\
2342
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2343
  ctx.fill();\
2344
  ctx.restore();\
2345
 }else{xmarge = 0;ymarge = 0;};\
2346
 if( typeof(xaxislabel) !== 'undefined' ){\
2347
  ctx.save();\
15313 schaersvoo 2348
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2349
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2350
  corr =  ctx.measureText(xaxislabel).width;\
2351
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2352
  ctx.restore();\
2353
 };\
2354
 if( typeof(yaxislabel) !== 'undefined' ){\
2355
  ctx.save();\
15313 schaersvoo 2356
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2357
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2358
  corr = ctx.measureText(yaxislabel).width;\
2359
  ctx.translate(xmarge+font_size,corr+font_size);\
2360
  ctx.rotate(-0.5*Math.PI);\
2361
  ctx.fillText(yaxislabel,0,0);\
2362
  ctx.restore();\
2363
 };\
2364
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2365
 ctx.lineWidth = line_width;\
2366
 for(var p = x_min; p <= x_max ; p++){\
2367
  num = Math.pow(xlogbase,p);\
2368
  for(var i = 1 ; i < xlogbase ; i++){\
2369
   x_e = x2px(i*num);\
2370
   if( i == 1 ){\
2371
     ctx.lineWidth = line_width;\
2372
     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2373
    if( use_axis_numbering != -1 && p > x_min ){\
2374
      xtxt = xlogbase+'^'+p.toFixed(0);\
2375
      corr = 0.5*(ctx.measureText(xtxt).width);\
2376
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2377
    };\
2378
   }else{\
2379
    ctx.lineWidth = 0.2*line_width;\
2380
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2381
   };\
2382
   if( x_e >= xmarge ){\
2383
    ctx.beginPath();\
2384
    ctx.moveTo(x_e,0);\
2385
    ctx.lineTo(x_e,ysize - ymarge);\
2386
    ctx.stroke();\
2387
    ctx.closePath();\
2388
   };\
2389
  };\
2390
 };\
2391
 var stepy = Math.abs(y2px(ymajor) - y2px(0));\
2392
 var minor_step = stepy / yminor;\
2393
 for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
2394
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2395
  ctx.lineWidth = line_width;\
2396
  ctx.beginPath();\
2397
  ctx.moveTo(xmarge,y);\
2398
  ctx.lineTo(xsize,y);\
2399
  ctx.stroke();\
2400
  ctx.closePath();\
2401
  if( use_axis_numbering != -1){\
2402
   ytxt = (px2y(y)).toFixed(prec);\
2403
   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
2404
  };\
2405
  for(var dy = 1 ; dy < yminor ; dy++){\
2406
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2407
   ctx.lineWidth = 0.2*line_width;\
2408
   ctx.beginPath();\
2409
   ctx.moveTo(xmarge,y+dy*minor_step);\
2410
   ctx.lineTo(xsize,y+dy*minor_step);\
2411
   ctx.stroke();\
2412
   ctx.closePath();\
2413
  };\
2414
 };\
2415
 ctx.restore();\
2416
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2417
break;
2418
 
2419
case DRAW_YLOGSCALE:
2420
fprintf(js_include_file,"\n/* draw ylogscale */\
2421
var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,xmajor,xminor,precision){\
2422
 var obj;\
2423
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2424
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
2425
 }\
2426
 else\
2427
 {\
2428
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2429
 };\
2430
 var ctx = obj.getContext(\"2d\");\
2431
 ctx.clearRect(0,0,xsize,ysize);\
2432
 ctx.save();\
2433
 ctx.lineWidth = line_width;\
2434
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2435
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2436
 var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
2437
 if(use_axis_numbering != -1){\
2438
  ctx.font = font_family;\
2439
  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
2440
  ymarge = 2*font_size;\
2441
  ctx.save();\
2442
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2443
  ctx.rect(0,0,xmarge,ysize);\
2444
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2445
  ctx.fill();\
2446
  ctx.restore();\
2447
 }else{xmarge = 0;ymarge = 0;};\
2448
 if( typeof(xaxislabel) !== 'undefined' ){\
2449
  ctx.save();\
15313 schaersvoo 2450
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2451
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2452
  corr =  ctx.measureText(xaxislabel).width;\
2453
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2454
  ctx.restore();\
2455
 };\
2456
 if( typeof(yaxislabel) !== 'undefined' ){\
2457
  ctx.save();\
15313 schaersvoo 2458
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2459
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2460
  corr = ctx.measureText(yaxislabel).width;\
2461
  ctx.translate(xmarge+font_size,corr+font_size);\
2462
  ctx.rotate(-0.5*Math.PI);\
2463
  ctx.fillText(yaxislabel,0,0);\
2464
  ctx.restore();\
2465
 };\
2466
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2467
 ctx.lineWidth = line_width;\
2468
 for(var p = y_min; p <= y_max ; p++){\
2469
  num = Math.pow(ylogbase,p);\
2470
  for(var i = 1 ; i < ylogbase ; i++){\
2471
   y_e = y2px(i*num);\
2472
   if( i == 1 ){\
2473
    ctx.lineWidth = line_width;\
2474
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2475
    if( use_axis_numbering != -1 && p > y_min){\
2476
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2477
    };\
2478
   }else{\
2479
    ctx.lineWidth = 0.2*line_width;\
2480
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2481
   };\
2482
   ctx.beginPath();\
2483
   ctx.moveTo(xmarge,y_e);\
2484
   ctx.lineTo(xsize,y_e);\
2485
   ctx.stroke();\
2486
   ctx.closePath();\
2487
  };\
2488
 };\
2489
 var stepx = Math.abs(x2px(xmajor) - x2px(0));\
2490
 var minor_step = stepx / xminor;\
2491
 var prec = Math.log(precision)/Math.log(10);\
2492
 var xtxt;var corr;var flip = 0;\
2493
 for(var x = stepx ; x < xsize ; x = x + stepx){\
2494
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2495
  ctx.lineWidth = line_width;\
2496
  ctx.beginPath();\
2497
  ctx.moveTo(x,ysize-ymarge);\
2498
  ctx.lineTo(x,0);\
2499
  ctx.stroke();\
2500
  ctx.closePath();\
2501
  if( use_axis_numbering != -1){\
2502
   xtxt = (px2x(x)).toFixed(prec);\
2503
   corr = 0.5*(ctx.measureText(xtxt).width);\
2504
   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
2505
   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
2506
  };\
2507
  for(var dx = 1 ; dx < xminor ; dx++){\
2508
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2509
   ctx.lineWidth = 0.2*line_width;\
2510
   ctx.beginPath();\
2511
   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
2512
   ctx.lineTo(x+dx*minor_step,0);\
2513
   ctx.stroke();\
2514
   ctx.closePath();\
2515
  };\
2516
 };\
2517
 ctx.restore();\
2518
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2519
break;
2520
 
2521
case ADD_USER_INPUTS:
2522
fprintf(js_include_file,"\n/* add_input_xy */\
2523
function add_input_xy(){\
2524
if( wims_status == \"done\" ){return;};\
2525
var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
2526
var input_xy_div = document.createElement('div');\
2527
input_xy_div.id = \"input_xy_div\";\
2528
tooltip_div.appendChild(input_xy_div);",canvas_root_id);
2529
 
2530
if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
2531
type=1;
2532
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x'/> : <input type='text' size='2' value='' id='userinput_y'/>)<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2533
}else{
2534
if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
2535
type=2;
2536
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>M:&nbsp;(<input type='text' size='2' value='' id='userinput_x'/> : <input type='text' size='2' value='' id='userinput_y'/>) &nbsp;&nbsp;R:&nbsp;<input type='text' size='2' value='' id='userinput_r'/><input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2537
}else{
2538
type=3;
2539
if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
2540
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x1'/> : <input type='text' size='2' value='' id='userinput_y1'/>) &minus;&minus;&minus; (<input type='text' size='2' value='' id='userinput_x2'/> : <input type='text' size='2' value='' id='userinput_y2'/>)<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2541
}else{
2542
type=4;
2543
if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
2544
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>&#8420;&nbsp;&nbsp;<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/><br/>(<input type='text' size='2' value='' id='userinput_x1'/> : <input type='text' size='2' value='' id='userinput_y1'/>)<br/>(<input type='text' size='2' value='' id='userinput_x2'/> : <input type='text' size='2' value='' id='userinput_y2'/>)<br/>(<input type='text' size='2' value='' id='userinput_x3'/> : <input type='text' size='2' value='' id='userinput_y3'/>)</span> \";",css_class);
2545
}else{
2546
type=5;
2547
if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
2548
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x'/>:<input type='text' size='2' value='' id='userinput_y'/>)&nbsp;<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2549
}else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
2550
}}}}}
2551
 
2552
fprintf(js_include_file,"\
2553
var update_button = document.getElementById(\"update_button\");\
2554
var delete_button = document.getElementById(\"delete_button\");\
2555
update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
2556
delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
2557
};add_input_xy();");
2558
 
2559
switch(type){
2560
 case 1:
2561
fprintf(js_include_file,"\n/* add_input_xy */\
2562
function update_me(){\
15529 schaersvoo 2563
 var x = safe_eval(document.getElementById('userinput_x').value);\
2564
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2565
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2566
 return;\
2567
};");break;
2568
 case 2:
2569
fprintf(js_include_file,"\n/* add_input_xy */\
2570
function update_me(){\
15529 schaersvoo 2571
 var x = safe_eval(document.getElementById('userinput_x').value);\
2572
 var y = safe_eval(document.getElementById('userinput_y').value);\
2573
 var r = safe_eval(document.getElementById('userinput_r').value);\
15111 schaersvoo 2574
 r = scale_x_radius(r);\
2575
 userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2576
 return;\
2577
};");break;
2578
 case 3:
2579
fprintf(js_include_file,"\n/* add_input_xy */\
2580
function update_me(){\
2581
 var x,y;\
2582
 for(var p=1; p<3;p++){\
15529 schaersvoo 2583
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2584
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2585
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2586
 };\
2587
 return;\
2588
};");
2589
 break;
2590
 case 4:
2591
fprintf(js_include_file,"\n/* add_input_xy */\
2592
function update_me(){\
2593
 var x,y;\
2594
 for(var p=1; p<4;p++){\
15529 schaersvoo 2595
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2596
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2597
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2598
 };\
2599
 return;\
2600
};");
2601
 break;
2602
 case 5:
2603
 /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
2604
fprintf(js_include_file,"\n/* add_input_xy */\
2605
function update_me(){\
15529 schaersvoo 2606
 var x = safe_eval(document.getElementById('userinput_x').value);\
2607
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2608
 var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
2609
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
2610
 return;\
2611
};");
2612
 break;
2613
 default: canvas_error("hmmm, I've no idea...");break;
2614
}
2615
 
2616
break;
2617
 
2618
default:break;
2619
   }
2620
  }
2621
 }
2622
  return;
2623
}