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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(){
16643 schaersvoo 6
#ifdef KATEX_INSTALLED
16642 schaersvoo 7
char *mathjax="centered(xml_div,obj);";
8
#else
9
char *mathjax="setTimeout(function(){centered(xml_div,obj)},100);";
10
#endif
15111 schaersvoo 11
int i;
12
int type;
13
for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
14
/*
15
fprintf(stdout,"checking js_function[%d] = %d<br />",i,js_function[i]);
16
*/
17
 if( js_function[i] == 1){
18
    switch(i){
19
 
15690 schaersvoo 20
case JS_ARROWHEAD:
21
/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */
22
fprintf(js_include_file,"\n/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */\
23
function draw_arrowhead(x,y,x0,y0,ctx){\
24
var angle = Math.atan2(x - x0,y - y0) + Math.PI;\
25
var pie = Math.PI/6;\
26
ctx.save();\
27
ctx.fillStyle=ctx.strokeStyle;\
28
ctx.beginPath();\
29
ctx.moveTo(x,y);\
30
ctx.moveTo(x - (arrow_head * Math.sin(angle - pie)),y - (arrow_head * Math.cos(angle - pie)));\
31
ctx.lineTo(x,y);\
32
ctx.lineTo(x - (arrow_head * Math.sin(angle + pie)),y - (arrow_head * Math.cos(angle + pie)));\
33
ctx.closePath();\
34
ctx.stroke();\
35
ctx.fill();\
36
ctx.restore();\
37
};");
38
break;
15111 schaersvoo 39
case JS_LOAD_IMAGE:
40
fprintf(js_include_file,"\n/* get_image_from_url */\
41
var image_cnt = 0;\
42
if( typeof(image_patterns) !== 'object'){var image_patterns = [];};\
43
var get_image_from_url = function(url){\
44
 var idx = Math.ceil(1000*(Math.random()));\
45
 var canvas = create_canvas%d(idx,xsize,ysize);\
46
 canvas.style.visibility = 'hidden';\
47
 var ctx = canvas.getContext(\"2d\");\
48
 var img = new Image();\
49
 img.src = url;\
50
 img.onload = function(){\
51
  var pat = ctx.createPattern(img,\"repeat\");\
52
  image_patterns.push(pat);\
53
 };\
54
};",canvas_root_id);
55
break;
56
 
57
case JS_SAFE_EVAL:
58
/* to avoid easy js-code injection...but is it a real problem ? */
59
fprintf(js_include_file," \n/* add safe eval function */function safe_eval(exp){\
60
 exp = exp.replace(/pi/g,'3.14159');\
61
 if(exp.indexOf('^') != -1){\
62
  exp = exp.replace(/[a-zA-Z]/g,' ');\
63
  exp = exp.replace(/\\*10\\^-/g,'e-');\
64
  exp = exp.replace(/\\*10\\^/g,'e+');\
65
  exp = exp.replace(/10\\^-/g,'1e-');exp = exp.replace(/10\\^/g,'1e+');\
66
  exp = eval(exp);\
67
  if(isNaN(exp)){alert(\"invalid input\\ntry just a real number \\ne.g. no calculations...\");return null;}\
68
  return exp;\
69
 };\
70
 var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;\
71
 var valid = true;\
72
 exp = exp.replace(reg,function($0){\
73
  if(Math.hasOwnProperty($0)){\
74
   return \"Math.\"+$0;\
16844 bpr 75
  } else {\
15111 schaersvoo 76
   valid = false;\
77
  }\
78
 }\
79
 );\
80
 if( !valid ){\
81
  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
16844 bpr 82
 } else {\
15111 schaersvoo 83
  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
84
 };\
85
 return exp;\
86
};");
87
break;
88
 
89
case JS_RAWMATH:
90
fprintf(js_include_file,"\n/* add_rawmath() */\
91
function rawmath(i){\
92
 i=i.toLowerCase();\
93
 i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
94
 if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
95
 if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
96
 i=i.replace(/\\*\\*/g,\"*\");\
97
 if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
98
 var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
99
 var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
100
 var cntl = 0;var cntr = 0;\
101
 var len = i.length;\
102
 for( var p = 0;p < len; p++){\
103
  if(i.charAt(p) == '('){cntl++;}\
104
  if(i.charAt(p) == ')'){cntr++;}\
105
 };\
106
 if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
107
 for(var p = 0; p < 12 ; p++){\
108
  for(var d = 0; d < 12 ; d++){\
109
   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
110
    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
111
   };\
112
   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
113
    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
114
   };\
115
  };\
116
 };\
117
 if(i.indexOf(\"(\")!=-1){\
118
  for(var p = 0;p < 12; p++){\
119
   if(i.indexOf(cons[p]+\"(\")!=-1){\
120
    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
121
   };\
122
   if(i.indexOf(\")\"+cons[p])!=-1){\
123
    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
124
   };\
125
  };\
126
  i = i.replace(/\\)\\(/g,\")*(\");\
127
 };\
128
 return i;\
129
};");
130
break;
131
 
132
case JS_PLOT:
133
fprintf(js_include_file,"\n/* jsplot() */\
134
var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
135
function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
136
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
137
 var ctx = obj.getContext(\"2d\");\
138
 ctx.clearRect(0,0,xsize,ysize);\
139
 animation_funs = funs.length;\
140
 function eval_jsmath(x,func){return parseFloat(eval(func));};\
141
 if(origin == 0 ){\
142
  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
143
  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
144
  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
145
  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
146
 };\
147
 x_anim_points = [];y_anim_points = [];var idx=0;\
148
 if( use_parametric == 1){\
149
  for(var i = 0 ; i < animation_funs; i=i+2){\
15351 bpr 150
   funs[i] = funs[i].replace(/t/g,'x');\
151
   funs[i+1] = funs[i+1].replace(/t/g,'x');\
152
   funs[i] = funs[i].replace(/xan/g,'tan');\
153
   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
15111 schaersvoo 154
   var fun_x = to_js_math(funs[i]);\
155
   var fun_y = to_js_math(funs[i+1]);\
156
   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;};\
157
   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;};\
158
   ctx.lineWidth = linewidth[i] || linewidth;\
159
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
160
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
161
   var y1;var x1;var y2;var x2;\
162
   ctx.beginPath();\
163
   var tmin = trange[0];var tmax = trange[1];\
164
   var step = parseFloat((tmax - tmin)/plotsteps);\
165
   for(var p = tmin ; p < tmax; p = p+step ){\
166
    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
167
    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
168
    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
169
    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
170
    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
171
     ctx.moveTo(x1,y1);\
172
     ctx.lineTo(x2,y2);\
173
     ctx.moveTo(x1,y1);\
174
     ctx.lineTo(x2,y2);\
175
   };\
176
   ctx.closePath();\
177
   ctx.stroke();\
178
  };\
179
  animation_funs = 0.5*animation_funs;\
180
 }else{\
181
  for(var i = 0 ; i < animation_funs; i++){\
182
   var fun = to_js_math(funs[i]);\
183
   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;};\
184
   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;};\
185
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
186
   ctx.lineWidth = linewidth[i] || linewidth;\
187
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
188
   var y1;var x1;var y2;var x2;\
189
   ctx.beginPath();\
190
   for(var p = 0 ; p<xsize;p++){\
191
    x1 = px2x(p);\
192
    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
193
    x2 = px2x(p+1);\
194
    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
195
    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
196
    if(Math.abs(y2-y1) < ysize ){\
197
     ctx.moveTo(p,y1);\
198
     ctx.lineTo(p+1,y2);\
199
    };\
200
   };\
201
   ctx.closePath();\
202
   ctx.stroke();\
203
  };\
204
 };\
205
 if( use_animate == 1 ){animation_steps = idx;animate_this();}\
206
};",canvas_root_id);
207
break;
208
 
209
case JS_MATH:
210
fprintf(js_include_file,"\n/* to_js_math() */\
211
function to_js_math(math_fun){\
212
 if(math_fun == null){return;};\
213
 var infun=[\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
214
 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)\"];\
215
 var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
216
 for(var p=0 ; p < len ; p++){\
217
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
218
  if(math_fun.indexOf(in_fun) != -1){\
219
   if(in_fun == \"^\"){\
220
    var tab = [];var small_trick = \"___small_trick___\";\
221
    while (math_fun.indexOf(\"(\") != -1){\
222
     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
223
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
224
    };\
225
    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
226
    while (math_fun.indexOf(small_trick) != -1){\
227
     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)\");});\
228
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
229
    };\
16844 bpr 230
   } else {\
15111 schaersvoo 231
    while( math_fun.indexOf(in_fun) != -1 ){\
232
     math_fun = math_fun.replace(in_fun,out_fun);\
233
     math_fun = math_fun.replace(in_fun,In_Fun);\
234
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
235
    };\
236
   };\
237
  };\
238
 };\
239
 for(var p=0 ; p < len ; p++){\
240
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
241
  if(math_fun.indexOf(In_Fun) != -1 ){\
242
   while(math_fun.indexOf(In_Fun) != -1){\
243
    math_fun = math_fun.replace(In_Fun,in_fun);\
244
    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
245
   };\
246
  };\
247
 };\
248
 return math_fun;\
249
};");
250
break;
251
 
252
case INTERACTIVE:
16845 bpr 253
 fprintf(js_include_file,"\n/* add mouse support */\
254
var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));\
255
var getMouse = function(e, element){\
256
   var mx,my;var offsetX = 0,offsetY = 0;\
257
   while( ( element = element.offsetParent) ){\
258
     offsetX += element.offsetLeft;offsetY += element.offsetTop;\
259
   };\
260
   /*console.log('===');*/\
261
   if(isTouch){\
262
      mx = e.pageX - offsetX; my = e.pageY - offsetY;\
263
   }else{\
264
      mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);\
265
      my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);\
266
   };\
267
   /* test if canvas_div is inside a scrollable */\
268
   const scroll_parent = canvas_div.closest('.wims_scrollable');\
269
   if (scroll_parent){\
270
      mx = mx + scroll_parent.scrollLeft;\
271
      my = my + scroll_parent.scrollTop;\
272
   }\
273
   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
274
   /*console.log('mx before=' + mx);\
275
   console.log('xsize='+xsize);\
276
   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
277
   mx = (mx * xsize / canvas_div.offsetWidth);\
278
   /*console.log('mx after='+mx);*/\
279
   my = (my * ysize / canvas_div.offsetHeight);\
280
   return {x: mx, y: my};\
281
};");
15111 schaersvoo 282
break;
283
case USERDRAW_AND_ZOOM:
284
fprintf(js_include_file,"\n/* add zoom support for multidraw */\
285
function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
286
 function x_zoom(px){\
287
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
288
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
289
 };\
290
 function y_zoom(py){\
291
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
292
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
293
 };\
294
 function r_zoom(r){\
295
  return r*(xmin0/xmin);\
296
 };\
297
 var len = userdraw_x.length;\
298
 var x;var y;var r;\
299
 for(var p=0;p<len;p++){\
300
  x = userdraw_x[p];\
301
  y = userdraw_y[p];\
302
  userdraw_x[p] = x_zoom(x);\
303
  userdraw_y[p] = y_zoom(y);\
304
  if( userdraw_radius[p] ){\
305
   r = userdraw_radius[p];\
306
   userdraw_radius[p] = r_zoom(r);\
307
  };\
308
 };\
309
};");
310
break;
311
 
312
case DRAG_AND_ZOOM:
313
fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
314
function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
315
 function x_zoom(px){\
316
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
317
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
318
 };\
319
 function y_zoom(py){\
320
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
321
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
322
 };\
323
 var len = dragstuff.shapes.length;\
324
 var shape;var L;var x;var y;\
325
 for(var p=0;p<len;p++){\
326
  shape = dragstuff.shapes[p];\
327
  L = shape.x.length;\
328
  for(var i=0;i<L;i++){\
329
   x = shape.x[i];\
330
   y = shape.y[i];\
331
   dragstuff.shapes[p].x[i] = x_zoom(x);\
332
   dragstuff.shapes[p].y[i] = y_zoom(y);\
333
  };\
334
 };\
335
};");
336
break;
337
 
338
case JSPLOT_AND_ZOOM:
339
fprintf(js_include_file,"\n/* add zoom support for jscurves */\
340
function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
341
break;
342
 
343
case JS_ZOOM:
344
fprintf(js_include_file,"\n/* add zoom support */\
345
var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
346
var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
347
function redraw_canvas%d(key){\
348
 var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
349
 switch(key){\
350
  case 0: xmin++;ymin++;xmax--;ymax--;break;\
351
  case 1: xmin--;ymin--;xmax++;ymax++;break;\
352
  case 2: xmin--;xmax--;break;\
353
  case 3: xmin++;xmax++;break;\
354
  case 4: ymin--;ymax--;break;\
355
  case 5: ymax++;ymin++;break;\
356
  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
357
  default: break;\
358
 };\
359
 if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
360
 if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
361
 if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
362
 if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
363
 if( typeof(redraw_grid) === 'function'){redraw_grid();};\
364
 if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
365
 if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
366
 return;\
367
};\
368
canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
369
canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
370
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
371
function wheel_zoom(evt){\
372
 evt.preventDefault();\
373
 var key = 1;\
374
 if(evt.deltaY > 0 ){key = 0};\
375
 redraw_canvas%d(key);\
376
 return;\
377
};\
378
function check_zoom_or_pan(evt){\
379
 var mouse = getMouse(evt,zoomcanvas);\
380
 var my = mouse.y;\
381
 if(my < ysize - 30){ return; };\
382
 var mx = mouse.x;\
383
 var key = -1;\
384
 for(var p = 15 ; p < 106 ; p = p+15){\
385
  key++;\
386
  if(mx > xsize - p){\
387
   redraw_canvas%d(key);\
388
   return;\
389
  };\
390
 };\
391
 return;\
392
};",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
393
break;
394
 
395
case DRAW_FILL_PATTERN:
396
fprintf(js_include_file,"\n /* add fill pattern */ \
397
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;\
398
 switch(type){\
399
  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;\
400
  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;\
401
  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;\
402
  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;\
403
  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
404
  default: break;\
405
 };\
406
 document.body.style.cursor = 'default';return pat;\
407
};",canvas_root_id);
408
break;
409
 
410
case JS_TRANSFORM_MOUSE:
411
/* identify mouse coordinates on transformed objects using command affine */
412
fprintf(js_include_file,"\n/* translate mouse */\
413
function transform_mouse(mx,my,obj){\
414
if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
415
var m = obj.affine_matrix;\
416
var d = 1/(m[0]*m[3]-m[1]*m[2]);\
417
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]) ];\
418
return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
419
break;
420
 
421
case JS_ROTATE_MOUSE:
422
/*
423
identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
424
faster than transform matrix
425
*/
426
fprintf(js_include_file,"\n/* rotate mouse */\
427
function rotate_mouse(mx,my,obj){\
428
 if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
429
 var cos = Math.cos(obj.angle);\
430
 var sin = Math.sin(obj.angle);\
431
 var xc = obj.rotation_center[0];\
432
 var yc = obj.rotation_center[1];\
433
 var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
434
 var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
435
 return {x:x_r,y:y_r};};");
436
break;
437
 
438
case JS_FIND_ANGLE:
439
 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);};");
440
break;
441
 
442
case DRAG_EXTERNAL_IMAGE:
443
/*
444
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
445
reply is object{} and identical to reply from dragstuff library for drag&drop&click
446
*/
447
fprintf(js_include_file,"\n/* drag external images */\
448
var external_ctx = external_canvas.getContext(\"2d\");\
449
var external_canvas_rect = external_canvas.getBoundingClientRect();\
450
canvas_div.addEventListener(\"mousedown\",setxy,false);\
451
canvas_div.addEventListener(\"mouseup\",dragstop,false);\
452
canvas_div.addEventListener(\"mousemove\",dragxy,false);\
453
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
454
canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
455
canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
456
var selected_image = null;\
457
if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
458
if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
459
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
460
 var image = new Image();\
461
 image.src = URL;\
462
 slidergroup[object_cnt] = null;\
463
 image.onload = function(){\
464
  if( sx < 1 ){ sx = 0; };\
465
  if( sy < 1 ){ sy = 0; };\
466
  if( swidth < 1 ){swidth = image.width;};\
467
  if( sheight < 1 ){sheight = image.height;};\
468
  if( width < 1 ){width = image.width;};\
469
  if( height < 1 ){height = image.height;};\
470
  if( resize == 1 ){\
471
   if( swidth > image.width ){ swidth = image.width; };\
472
   if( sheight > image.height){ sheight = image.height;};\
473
   if( width > image.width ){ width = image.width; };\
474
   if( height > image.height){ height = image.height;};\
475
  };\
476
  var img = new Array(18);\
477
  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
478
  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
479
  img[6] = x0;img[7] = y0;\
480
  img[12] = ext_image_cnt;\
481
  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
482
  if(use_offset == 4 ){\
483
   img[16] = 0.5*img[8];\
484
   img[17] = 0.5*img[9];\
485
   img[6]= parseInt(img[6] - img[16]);\
486
   img[7]= parseInt(img[7] - img[17]);\
487
  };\
488
  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
16847 schaersvoo 489
  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
15111 schaersvoo 490
  ext_drag_images[ext_image_cnt] = img;\
491
  ext_image_cnt++;\
492
 };\
493
};\
494
function dragstop(evt){\
495
 if(selected_image != null){\
496
  var s_img = ext_drag_images[selected_image];\
16847 schaersvoo 497
  dragdrop_reply[s_img[10]] = {type:s_img[0], object_cnt:s_img[10],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]};\
15111 schaersvoo 498
 };\
499
 selected_image = null;return;\
500
};\
501
function dragxy(evt){\
502
 if( selected_image != null ){\
503
  var s_img = ext_drag_images[selected_image];\
504
  var mouse = getMouse(evt,external_canvas);\
505
  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
506
  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
507
  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
508
  s_img[6] = xy[0];s_img[7] = xy[1];\
509
  ext_drag_images[selected_image] = s_img;\
510
  external_ctx.clearRect(0,0,xsize,ysize);\
511
  for(var i = 0; i < ext_image_cnt ; i++){\
512
   var img = ext_drag_images[i];\
513
   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
514
  };\
515
 };\
516
};\
517
function setxy(evt){\
518
 if( ! selected_image ){\
519
  var mouse = getMouse(evt,external_canvas);\
520
  var xm = mouse.x;\
521
  var ym = mouse.y;\
522
  var img;var xmarge;var ymarge;\
523
  for(var p = 0 ; p < ext_image_cnt ; p++){\
524
   if( ext_drag_images[p] ){\
525
    img = ext_drag_images[p];\
526
    if( img[0] != 0 ){\
527
     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
528
     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
529
      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
530
       if( img[0] == 1){\
531
        if( dragdrop_reply[img[10]].clicked == 1 ){\
532
         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
533
        }\
534
        else\
535
        {\
536
         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
537
        };\
538
        external_ctx.lineWidth = 2;\
539
        external_ctx.beginPath();\
540
        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
541
        external_ctx.closePath();\
542
        external_ctx.stroke();\
543
        return;\
544
       }\
545
       else\
546
       {\
547
        img[6] = xm;\
548
        img[7] = ym;\
549
        selected_image = p;\
550
        dragxy(evt);\
551
        ext_drag_images[p] = img;\
552
       };\
553
      };\
554
     };\
555
    };\
556
   };\
557
  };\
16844 bpr 558
 } else {\
15111 schaersvoo 559
  selected_image = null;\
560
 };\
561
};");
562
break;
563
 
564
case DRAW_EXTERNAL_IMAGE:
565
/*
566
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
567
only drag_xy !
568
snaptogrid | xsnaptogrid | ysnaptogrid works
569
14/5/2019
570
on heavy styled wims (unice.fr etc problems with mouse?
571
now uniform method of retreiving mouse coordinates getMouse()
572
*/
573
fprintf(js_include_file,"\n/* draw external images */\
574
function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
575
 var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
576
 var image = new Image();\
577
 image.src = URL;\
578
 image.onload = function(){\
579
  if( sx < 1 ){ sx = 0; };\
580
  if( sy < 1 ){ sy = 0; };\
581
  if( swidth < 1 ){swidth = image.width;};\
582
  if( sheight < 1 ){sheight = image.height;};\
583
  if( width < 1 ){width = image.width;};\
584
  if( height < 1 ){height = image.height;};\
585
  if( resize == 1 ){\
586
   if( swidth > image.width ){ swidth = image.width; };\
587
   if( sheight > image.height){ sheight = image.height;};\
588
   if( width > image.width ){ width = image.width; };\
589
   if( height > image.height){ height = image.height;};\
590
  };\
591
  var img = new Array(9);\
592
  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
593
  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
594
  img[7] = width;img[8] = height;\
595
  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
596
 };\
597
};");
598
break;
599
 
600
case DRAW_BEZIER:
601
fprintf(js_include_file,"\n/* draw bezier curve */\
602
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
603
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){\
604
 var obj;\
605
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
606
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 607
 } else {\
15111 schaersvoo 608
  obj = create_canvas%d(canvas_type,xsize,ysize);\
609
 };\
610
 var ctx = obj.getContext(\"2d\");\
611
 ctx.save();\
612
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
613
 ctx.lineWidth = linewidth;\
614
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
615
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
616
 ctx.beginPath();\
617
 ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
618
 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]));\
619
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
620
 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;};\
621
 ctx.stroke();\
622
 ctx.restore();\
623
};",canvas_root_id,canvas_root_id,canvas_root_id);
624
break;
625
 
626
case DRAW_GRIDFILL:/* not used for userdraw */
627
fprintf(js_include_file,"\n/* draw gridfill */\
628
var grid_fill_pattern;\
629
function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
630
 if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
631
 var fc = %d+canvas_type;\
632
 var obj = create_canvas%d(fc,xsize,ysize);\
633
 var ctx = obj.getContext('2d');\
634
 var x,y;\
635
 ctx.fillStyle='rgba(255,255,255,0.01)';\
636
 ctx.rect(0,0,xsize,ysize);\
637
 ctx.fill();\
638
 ctx.lineWidth = linewidth;\
639
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
640
 for( x = 0 ; x <= xsize ; x = x + dx ){\
641
  ctx.beginPath();\
642
  ctx.moveTo(x,0);\
643
  ctx.lineTo(x,ysize);\
644
  ctx.closePath();\
645
  ctx.stroke();\
646
 };\
647
 for( y = 0 ; y <= ysize; y = y + dy ){\
648
  ctx.beginPath();\
649
  ctx.moveTo(0,y);\
650
  ctx.lineTo(xsize,y);\
651
  ctx.closePath();\
652
  ctx.stroke();\
653
 };\
654
 if( use_userdraw ){\
655
  grid_fill_pattern = ctx;\
16844 bpr 656
 } else {\
15111 schaersvoo 657
  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
658
};",canvas_root_id,canvas_root_id);
659
break;
660
 
661
case DRAW_IMAGEFILL:/* not  used for userdraw */
662
fprintf(js_include_file,"\n/* draw imagefill */\
663
function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
664
 var fc = %d+canvas_type;\
665
 var obj = create_canvas%d(fc,xsize,ysize);\
666
 var ctx = obj.getContext('2d');\
667
 var img = new Image();\
668
 img.src = URL;\
669
 obj.style.visibility = 'hidden';\
670
 img.onload = function(){\
671
  if( use_scaling == 1 ){\
672
   ctx.drawImage(img,x0,y0,xsize,ysize);\
673
  }else{\
674
   var w0 = img.width;var h0 = img.height;var w;var h;\
675
   for( w = x0; w < xsize ; w = w + w0 ){\
676
    for( h = y0; h < ysize; h = h + h0){\
677
      ctx.drawImage(img,w,h,w0,h0);\
678
    };\
679
   };\
680
  };\
681
  if( use_userdraw ){\
682
   image_pattern = ctx;\
16844 bpr 683
  } else {\
15111 schaersvoo 684
   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
685
  };\
686
 };\
687
};",canvas_root_id,canvas_root_id);
688
break;
689
 
690
case DRAW_DOTFILL:/* not  used for userdraw */
691
fprintf(js_include_file,"\n/* draw dotfill */\
692
var dot_fill_pattern;\
693
function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
694
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
695
var fc = %d+canvas_type;\
696
 var obj = create_canvas%d(fc,xsize,ysize);\
697
 var ctx = obj.getContext('2d');\
698
 var x,y;\
699
 ctx.fillStyle='rgba(255,255,255,0.01)';\
700
 ctx.rect(0,0,xsize,ysize);\
701
 ctx.fill();\
702
 ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
703
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
704
 for( x = 0 ; x < xsize ; x = x + dx ){\
705
  for( y = 0 ; y < ysize ; y = y + dy ){\
706
   ctx.beginPath();\
707
   ctx.arc(x,y,radius,0,2*Math.PI,false);\
708
   ctx.closePath();\
709
   ctx.fill();\
710
  };\
711
 };\
712
 if( use_userdraw ){\
713
  dot_fill_pattern = ctx;\
16844 bpr 714
 } else {\
15111 schaersvoo 715
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
716
 };\
717
return;\
718
};",canvas_root_id,canvas_root_id);
719
break;
720
 
16714 schaersvoo 721
case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
16722 schaersvoo 722
/* use_offset
723
 0=none;
724
 1=yoffset
725
 2=xoffset
726
 3=xyoffset
727
 4=centered
728
*/
16700 schaersvoo 729
fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
16722 schaersvoo 730
function draw_subsup(ctx,x,y,txt,use_offset){\
16712 schaersvoo 731
 var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
16722 schaersvoo 732
 var m = 0.4*(ctx.measureText(txt).width);\
733
 var h = ctx.measureText('M').width;\
734
 switch(use_offset){\
735
  case 0:break;\
736
  case 1:y=y-h;;break;\
737
  case 2:x=x+h;break;\
738
  case 3:x=x+h;y=y-h;;break;\
739
  case 4:x=x-m;break;\
740
  default:break;\
741
 };\
16845 bpr 742
 var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
743
 ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
16705 schaersvoo 744
 for( c = 0 ; c < len ;c++){\
16700 schaersvoo 745
  C = txt.charAt(c);space = 0;\
16845 bpr 746
  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
16714 schaersvoo 747
  else\
16845 bpr 748
  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
16714 schaersvoo 749
  else\
16845 bpr 750
  if(C == ' '){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
16714 schaersvoo 751
  else\
752
  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
16845 bpr 753
  else{ctx.font = S+'px Helvetica';};\
16712 schaersvoo 754
  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
16700 schaersvoo 755
 };\
16705 schaersvoo 756
 ctx.stroke();\
16700 schaersvoo 757
 ctx.restore();\
758
 return;\
759
};");
760
break;
761
 
15111 schaersvoo 762
case DRAW_TEXTFILL:/* not  used for userdraw */
763
fprintf(js_include_file,"\n/* draw textfill */\
764
var text_fill_pattern;\
765
function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
766
var fc = %d+canvas_type;\
767
var obj = create_canvas%d(fc,xsize,ysize);\
768
var ctx = obj.getContext('2d');\
769
ctx.font = fontfamily;\
770
var dx = 2+(ctx.measureText(txt)).width;\
771
var dy = 2+(ctx.measureText('MI')).width;\
772
ctx.fillStyle='rgba(255,255,255,0.01)';\
773
ctx.rect(0,0,xsize,ysize);\
774
ctx.fill();\
775
ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
776
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
777
for(var x = 0 ; x <= xsize ; x = x + dx ){\
778
 for(var y = 0 ; y <= ysize ; y = y + dy ){\
779
  ctx.fillText(txt, x, y);\
780
 };\
781
};\
782
if( use_userdraw ){\
783
 text_fill_pattern = ctx;\
784
}\
785
else\
786
{\
787
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
788
};\
789
return;};",canvas_root_id,canvas_root_id);
790
break;
791
 
792
case DRAW_DIAMONDFILL:/* not used for userdraw */
793
fprintf(js_include_file,"\n/* draw hatch fill */\
794
var diamond_fill_pattern;\
795
function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
796
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
797
var fc = %d+canvas_type;\
798
var obj = create_canvas%d(fc,xsize,ysize);\
799
var ctx = obj.getContext('2d');\
800
var x;\
801
var y;\
802
ctx.lineWidth = linewidth;\
803
ctx.fillStyle='rgba(255,255,255,0.01)';\
804
ctx.rect(0,0,xsize,ysize);\
805
ctx.fill();\
806
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
807
y = ysize;\
808
ctx.beginPath();\
809
for( x = 0 ; x <= xsize ; x = x + dx ){\
810
  ctx.moveTo(x,0);\
811
  ctx.lineTo(xsize,y);\
812
  y = y - dy;\
813
};\
814
y=0;\
815
for( x = xsize ; x >= 0 ; x = x - dx){\
816
 ctx.moveTo(x,ysize);\
817
 ctx.lineTo(0,y);\
818
 y = y + dy;\
819
};\
820
y = 0;\
821
for( x = 0 ; x <= xsize ; x = x + dx ){\
822
 ctx.moveTo(x,0);\
823
 ctx.lineTo(0,y);\
824
 y = y + dy;\
825
};\
826
y = 0;\
827
for( x = 0 ; x <= xsize ; x = x + dx ){\
828
 ctx.moveTo(xsize,y);\
829
 ctx.lineTo(x,ysize);\
830
 y = y + dy;\
831
};\
832
ctx.closePath();\
833
ctx.stroke();\
834
if( use_userdraw ){\
835
 diamond_fill_pattern = ctx;\
836
}\
837
else\
838
{\
839
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
840
};\
841
return;\
842
}",canvas_root_id,canvas_root_id);
843
break;
844
 
845
case DRAW_HATCHFILL:/* not used for userdraw */
846
fprintf(js_include_file,"\n/* draw hatch fill */\
847
var hatch_fill_pattern;\
848
function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
849
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
850
var fc = %d+canvas_type;\
851
var obj = create_canvas%d(fc,xsize,ysize);\
852
var ctx = obj.getContext('2d');\
853
var x,y;\
854
ctx.fillStyle='rgba(255,255,255,0.01)';\
855
ctx.rect(0,0,xsize,ysize);\
856
ctx.fill();\
857
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
858
ctx.lineWidth = linewidth;\
859
y = ysize;\
860
ctx.beginPath();\
861
for( x = 0 ; x <= xsize ; x = x + dx ){\
862
 ctx.moveTo(x,0);\
863
 ctx.lineTo(xsize,y);\
864
 y = y - dy;\
865
};\
866
y = 0;\
867
for( x = xsize ; x >= dx ; x = x - dx){\
868
 ctx.moveTo(x,ysize);\
869
 ctx.lineTo(0,y);\
870
 y = y + dy;\
871
};\
872
ctx.closePath();\
873
ctx.stroke();\
874
if( use_userdraw ){\
875
 hatch_fill_pattern = ctx;\
876
}\
877
else\
878
{\
879
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
880
};\
881
return;};",canvas_root_id,canvas_root_id);
882
break;
883
 
884
case DRAW_LINES:/*  used for js-tracing */
885
fprintf(js_include_file,"\n/* draw lines */\
886
function calc_line(x1,x2,y1,y2){\
887
 var marge = 2;\
888
 if(x1 < x2+marge && x1>x2-marge){\
889
  return [x1,0,x1,ysize];\
890
 };\
891
 if(y1 < y2+marge && y1>y2-marge){\
892
  return [0,y1,xsize,y1];\
893
 };\
894
 var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
895
 var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
896
 return [0,Y1,xsize,Y2];\
897
};\
898
var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
899
 ctx.save();\
900
 var line = new Array(4);\
901
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
902
 ctx.lineWidth = line_width;\
903
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
904
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
905
 for(var p = 0 ; p < x_points.length ; p = p+2 ){\
906
  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
907
  ctx.beginPath();\
908
  ctx.moveTo(line[0],line[1]);\
909
  ctx.lineTo(line[2],line[3]);\
910
  ctx.closePath();\
911
  ctx.stroke();\
912
  }\
913
  ctx.restore();\
914
  return;\
915
 };");
916
break;
917
 
918
case DRAW_CROSSHAIRS:/*  used for tracing */
919
fprintf(js_include_file,"\n/* draw crosshairs  */\
920
var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
921
 ctx.save();\
922
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
923
 ctx.lineWidth = line_width;\
924
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
925
 var x1,x2,y1,y2;\
926
 for(var p = 0 ; p < x_points.length ; p++ ){\
927
  x1 = x_points[p] - crosshair_size;\
928
  x2 = x_points[p] + crosshair_size;\
929
  y1 = y_points[p] - crosshair_size;\
930
  y2 = y_points[p] + crosshair_size;\
931
  ctx.beginPath();\
932
  ctx.moveTo(x1,y1);\
933
  ctx.lineTo(x2,y2);\
934
  ctx.closePath();\
935
  ctx.stroke();\
936
  ctx.beginPath();\
937
  ctx.moveTo(x2,y1);\
938
  ctx.lineTo(x1,y2);\
939
  ctx.closePath();\
940
  ctx.stroke();\
941
 }\
942
 ctx.restore();\
943
  return;\
944
};");
945
break;
946
 
947
case DRAW_VIDEO:/* not  used for userdraw */
948
fprintf(js_include_file,"\n/* draw video */\
949
var draw_video = function(canvas_root_id,x,y,w,h,URL){\
950
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
951
 var video_div = document.createElement(\"div\");\
952
 canvas_div.appendChild(video_div);\
953
 video_div.style.position = \"absolute\";\
954
 video_div.style.left = x+\"px\";\
955
 video_div.style.top = y+\"px\";\
956
 video_div.style.width = w+\"px\";\
957
 video_div.style.height = h+\"px\";\
958
 var video = document.createElement(\"video\");\
959
 video_div.appendChild(video);\
960
 video.style.width = w+\"px\";\
961
 video.style.height = h+\"px\";\
962
 video.autobuffer = true;\
963
 video.controls = true;video.autoplay = false;\
964
 var src = document.createElement(\"source\");\
965
 src.type = \"video/mp4\";\
966
 src.src = URL;\
967
 video.appendChild(src);\
968
 video.load();\
969
 return;\
970
};");
971
break;
972
 
973
case DRAW_AUDIO:/* not used for userdraw */
974
fprintf(js_include_file,"\n/* draw audio */\
975
var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
976
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
977
 var audio_div = document.createElement(\"div\");\
978
 canvas_div.appendChild(audio_div);\
979
 audio_div.style.position = \"absolute\";\
980
 audio_div.style.left = x+\"px\";\
981
 audio_div.style.top = y+\"px\";\
982
 audio_div.style.width = w+\"px\";\
983
 audio_div.style.height = h+\"px\";\
984
 var audio = document.createElement(\"audio\");\
985
 audio_div.appendChild(audio);\
986
 audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
987
 audio.autobuffer = true;\
988
 if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
989
 if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
990
 var src1 = document.createElement(\"source\");\
991
 src1.type = \"audio/ogg\";\
992
 src1.src = URL1;\
993
 audio.appendChild(src1);\
994
 var src2 = document.createElement(\"source\");\
995
 src2.type = \"audio/mpeg\";\
996
 src2.src = URL2;\
997
 audio.appendChild(src2);\
998
 audio.load();\
999
 return;\
1000
};");
1001
break;
1002
 
1003
case DRAW_HTTP:/* not  used for userdraw */
1004
fprintf(js_include_file,"\n/* draw http */\
1005
var draw_http = function(canvas_root_id,x,y,w,h,URL){\
1006
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
1007
 var http_div = document.createElement(\"div\");\
1008
 var iframe = document.createElement(\"iframe\");\
1009
 canvas_div.appendChild(http_div);\
1010
 http_div.appendChild(iframe);\
1011
 iframe.src = URL;\
1012
 iframe.setAttribute(\"width\",w);\
1013
 iframe.setAttribute(\"height\",h);\
1014
 return;\
1015
};");
1016
break;
1017
 
1018
case DRAW_XML:
1019
/*
1020
!! function draw_xml(object)
1021
!! produced by : DRAW_XML
1022
!! used by commands: katex,latex,mathml,html,obabel
1023
!! uses js-functions: calculate_size(xml_div),rad2deg(rad)
1024
!! user interaction: drag,onclick,slider
1025
!! reply function: read_dragdrop()
1026
 
1027
onclick=0; no interaction
1028
onclick=1: click
1029
onclick=2: drag ==> always centered (use_offset=4)
1030
onclick=3: slider + click on object
1031
onclick=4: slider (always active , keyword 'active' in slider params)
1032
onclick=5: slider + dragdrop
1033
xy:  drag_type = 0;
1034
x:   drag_type = 1;
1035
y:   drag_type = 2;
1036
 
1037
obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
1038
*/
1039
 
1040
fprintf(js_include_file,"\n/* draw xml */\
1041
function centered(xml_div,obj){\
1042
 var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
1043
 var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
1044
 obj.offset = [ ww , hh ];\
16845 bpr 1045
 /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
1046
 xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
1047
 xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
1048
 xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
15111 schaersvoo 1049
};\
1050
function rad2deg(rad){return rad*180/(Math.PI);};\
1051
if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
1052
function draw_xml(obj){\
1053
 var mouse;var xy = [obj.x[0],obj.y[0]];\
1054
 var xml_div;\
1055
 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};\
1056
 if( obj.once ){\
1057
  xml_div = document.createElement('DIV');\
1058
  canvas_div.appendChild(xml_div);\
1059
  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
1060
  xml_div.id = 'xml_div'+obj.id;\
1061
  xml_div.innerHTML = obj.mathml;\
16845 bpr 1062
  xml_div.classList.add('canvasdraw_xml');\
15111 schaersvoo 1063
  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
1064
  xml_div.style.font = obj.fontfamily;\
1065
  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]) ];};\
16642 schaersvoo 1066
  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
16844 bpr 1067
 } else {\
15111 schaersvoo 1068
  xml_div = document.getElementById('xml_div'+obj.id );\
1069
 };\
16845 bpr 1070
 if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
1071
 /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
1072
 xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
1073
 xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
1074
 xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
15111 schaersvoo 1075
 var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
1076
 var no_color = 'rgba(255,255,255,0)';var dragging = false;\
1077
 if( obj.use_affine != 0 || obj.angle != 0 ){\
1078
  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)';\
1079
 };\
1080
 if( obj.once ){\
1081
  obj.once = false;\
1082
  switch(obj.onclick){\
1083
   case 2:\
1084
    if(isTouch){\
1085
     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);\
1086
     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);\
1087
     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);\
1088
     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);\
16844 bpr 1089
    } else {\
15111 schaersvoo 1090
     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);\
1091
     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);\
1092
     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);\
1093
    };\
1094
    break;\
1095
   case 1:\
16844 bpr 1096
    if(isTouch){\
15111 schaersvoo 1097
     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);\
16844 bpr 1098
    } else {\
15111 schaersvoo 1099
     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);\
1100
    };\
1101
    break;\
1102
   case 3:\
16844 bpr 1103
    if(isTouch){\
15111 schaersvoo 1104
     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);\
16844 bpr 1105
    } else {\
15111 schaersvoo 1106
     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);\
1107
    };\
1108
    break;\
1109
   case 4:slidergroup[obj.object_cnt] = obj;break;\
1110
   case 5:slidergroup[obj.object_cnt] = obj;\
1111
    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);\
1112
    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);\
1113
    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);\
1114
    break;\
1115
   default: break;\
1116
  };\
1117
 };\
1118
 return;\
16642 schaersvoo 1119
};",mathjax);
15111 schaersvoo 1120
 
1121
/*
1122
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));\
1123
*/
1124
break;
1125
 
1126
case DRAW_SGRAPH:
1127
/*
1128
 xstart = given
1129
 ystart = given
1130
 sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
1131
*/
1132
fprintf(js_include_file,"\n/* draw sgraph */\
1133
var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
1134
 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);};\
1135
 var ctx = obj.getContext(\"2d\");\
1136
 ctx.font = fontfamily;\
1137
 var minor_opacity = 0.8*opacity;\
1138
 ctx.clearRect(0,0,xsize,ysize);\
1139
 var zero_x = 0.1*xsize;\
1140
 var zero_y = 0.9*ysize;\
1141
 var snor_x;var snor_y;\
1142
 if( xstart != xmin){\
1143
  snor_x = 0.1*xsize;\
16844 bpr 1144
 }else{\
15111 schaersvoo 1145
  snor_x = 0;\
1146
  xstart = xmin;\
1147
 };\
1148
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1149
 ctx.lineWidth = 2;\
1150
 ctx.beginPath();\
1151
 ctx.moveTo(xsize,zero_y);\
1152
 ctx.lineTo(zero_x,zero_y);\
1153
 ctx.lineTo(zero_x,0);\
1154
 ctx.stroke();\
1155
 ctx.closePath();\
1156
 ctx.beginPath();\
1157
 ctx.moveTo(zero_x,zero_y);\
1158
 ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
1159
 ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
1160
 ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
1161
 ctx.lineTo(zero_x + snor_x,zero_y);\
1162
 ctx.stroke();\
1163
 ctx.closePath();\
1164
 ctx.beginPath();\
1165
 var num = xstart;\
1166
 var flipflop = 1;\
1167
 var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
1168
 var txtsize;var txt_marge=step_x - 5;\
1169
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1170
  txtsize = ctx.measureText(num).width;\
1171
  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
1172
  if( flipflop == 1){\
1173
   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
16844 bpr 1174
  } else {\
15111 schaersvoo 1175
   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
1176
  };\
1177
  num = num + xmajor;\
1178
 };\
1179
 ctx.stroke();\
1180
 ctx.closePath();\
1181
 ctx.lineWidth = 1;\
1182
 ctx.beginPath();\
1183
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1184
   ctx.moveTo(x,zero_y);\
1185
   ctx.lineTo(x,0);\
1186
 };\
1187
 ctx.stroke();\
1188
 ctx.closePath();\
1189
 if( xminor > 1){\
1190
  ctx.lineWidth = 0.5;\
1191
  ctx.beginPath();\
1192
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1193
  var minor_step_x = step_x / xminor;\
1194
  var nx;\
1195
  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
1196
    num = 1;\
1197
    for(var p = 1 ; p < xminor ; p++){\
1198
     nx = x + num*minor_step_x;\
1199
     ctx.moveTo(nx,zero_y);\
1200
     ctx.lineTo(nx,0);\
1201
     num++;\
1202
    };\
1203
  };\
1204
  ctx.stroke();\
1205
  ctx.closePath();\
1206
  ctx.beginPath();\
1207
  ctx.lineWidth = 2;\
1208
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1209
  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1210
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
1211
  };\
1212
  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
1213
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
1214
  };\
1215
  ctx.stroke();\
1216
  ctx.closePath();\
1217
  ctx.lineWidth = 0.5;\
1218
 };\
1219
 xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
1220
 if( ystart != ymin){\
1221
  snor_y = 0.1*ysize;\
16844 bpr 1222
 } else {\
15111 schaersvoo 1223
  snor_y = 0;\
1224
  ystart = ymin;\
1225
 };\
1226
 ctx.lineWidth = 2;\
1227
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1228
 ctx.beginPath();\
1229
 ctx.moveTo(zero_x,zero_y);\
1230
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
1231
 ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
1232
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
1233
 ctx.lineTo(zero_x,zero_y - snor_y);\
1234
 ctx.stroke();\
1235
 ctx.closePath();\
1236
 ctx.beginPath();\
1237
 ctx.lineWidth = 1;\
1238
 num = ystart;\
1239
 var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
1240
 for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
1241
  ctx.moveTo(zero_x,y);\
1242
  ctx.lineTo(xsize,y);\
1243
  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
1244
  num = num + ymajor;\
1245
 };\
1246
 ctx.stroke();\
1247
 ctx.closePath();\
1248
 if( yminor > 1){\
1249
  ctx.lineWidth = 0.5;\
1250
  ctx.beginPath();\
1251
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1252
  var minor_step_y = step_y / yminor;\
1253
  var ny;\
1254
  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
1255
   num = 1;\
1256
   for(var p = 1 ;p < yminor;p++){\
1257
     ny = y + num*minor_step_y;\
1258
     ctx.moveTo(zero_x,ny);\
1259
     ctx.lineTo(xsize,ny);\
1260
     num++;\
1261
    };\
1262
  };\
1263
  ctx.stroke();\
1264
  ctx.closePath();\
1265
  ctx.lineWidth = 2;\
1266
  ctx.beginPath();\
1267
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1268
  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
1269
   ctx.moveTo(zero_x,y);\
1270
   ctx.lineTo(zero_x+12,y);\
1271
  };\
1272
  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
1273
   ctx.moveTo(zero_x,y);\
1274
   ctx.lineTo(zero_x+6,y);\
1275
  };\
1276
  ctx.stroke();\
1277
  ctx.closePath();\
1278
 };\
1279
 ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
1280
 if( typeof(legend%d)  !== 'undefined' ){\
1281
  ctx.globalAlpha = 1.0;\
1282
  var y_offset = 2*font_size;\
1283
  var txt;var txt_size;\
1284
  var x_offset = xsize - 2*font_size;\
1285
  var l_length = legend%d.length;var barcolor = new Array();\
1286
  if( typeof(legendcolors%d) !== 'undefined' ){\
1287
   for(var p = 0 ; p < l_length ; p++){\
1288
    barcolor[p] = legendcolors%d[p];\
1289
   };\
16844 bpr 1290
  } else {\
15111 schaersvoo 1291
   if( barcolor.length == 0 ){\
1292
    for(var p = 0 ; p < l_length ; p++){\
1293
     barcolor[p] = stroke_color;\
1294
    };\
1295
   };\
1296
  };\
1297
  for(var p = 0; p < l_length; p++){\
1298
   ctx.fillStyle = barcolor[p];\
1299
   txt = legend%d[p];\
1300
   txt_size = ctx.measureText(txt).width;\
1301
   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
1302
   y_offset = parseInt(y_offset + 1.5*font_size);\
1303
  };\
1304
 };\
1305
 if( typeof(xaxislabel) !== 'undefined' ){\
1306
   ctx.fillStyle = \'#000000\';\
1307
   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
1308
   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
1309
 };\
1310
 if( typeof(yaxislabel) !== 'undefined'){\
1311
   ctx.save();\
1312
   ctx.fillStyle = \'#000000\';\
1313
   var txt_size = ctx.measureText(yaxislabel).width;\
1314
   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
1315
   ctx.rotate(-0.5*Math.PI);\
1316
   ctx.fillText(yaxislabel,0,0);\
1317
   ctx.restore();\
1318
 };\
1319
};",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);
1320
break;
1321
 
1322
case DRAW_NUMBERLINE:
1323
fprintf(js_include_file,"\n/* draw numberline */\
1324
var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
1325
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
1326
 var ctx = obj.getContext(\"2d\");\
1327
 ctx.lineWidth = linewidth || 1;\
1328
 ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
15313 schaersvoo 1329
 ctx.font = fontfamily || 'Arial 12px';\
15111 schaersvoo 1330
 var fontsize = parseInt(ctx.font);\
1331
 ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
1332
 x1 = x2px(x1);\
1333
 x0 = x2px(x0);\
1334
 y0 = y2px(y0);\
1335
 y1 = y2px(y1);\
1336
 var sub_devision = -1;\
1337
 if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
1338
 var ybase1 = parseInt( y0 + fontsize + 2 );\
1339
 var ybase2 = parseInt( ybase1 + fontsize + 2 );\
1340
 var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
1341
 var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
1342
 xmajor = x2px(xmajor) - x2px(0);\
1343
 var i;var len;var p;\
1344
 xminor = xmajor / xminor;\
1345
 ctx.beginPath();\
1346
 for(p = x0 ; p < x1 ; p = p + xmajor){\
1347
  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
1348
  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
1349
   ctx.moveTo(s,y0);\
1350
   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
1351
   i++;\
1352
  };\
1353
 };\
1354
 ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
1355
 ctx.closePath();\
1356
 ctx.stroke();\
1357
 if( use_axis_numbering >-1 ){\
1358
  var str = x_strings[use_axis_numbering];\
1359
  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1360
  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
1361
  ctx.beginPath();\
1362
  if( x_strings_up[use_axis_numbering] == null){\
1363
   for(var p = 0 ; p < len ; p = p+2){\
1364
    var x_nums = x2px(eval(str[p]));\
1365
    var x_text = str[p+1];\
1366
    corr = ctx.measureText(x_text).width;\
1367
    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1368
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
1369
   };\
16844 bpr 1370
  } else {\
15111 schaersvoo 1371
   for(var p = 0 ; p < len ; p = p+2){\
1372
    x_nums = x2px(eval(str[p]));\
1373
    x_text = str[p+1];\
1374
    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
1375
    ctx.save();\
1376
    ctx.translate(x_nums+0.5*fontsize, corr);\
1377
    ctx.rotate(-1.5708);\
1378
    ctx.fillText(x_text,0,0);\
1379
    ctx.restore();\
1380
   };\
1381
  }\
16844 bpr 1382
 } else {\
15111 schaersvoo 1383
  var corr;var num;var flipflop = 0;var off = ybase1;\
1384
  var prec = parseInt(Math.log(precision)/Math.log(10));\
1385
  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
1386
   num = (px2x(p)).toFixed(prec);\
1387
   corr = ctx.measureText(num).width;\
1388
   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1389
   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
1390
  };\
1391
 };\
1392
};",canvas_root_id);
1393
break;
1394
 
1395
case DRAW_GRID:/* not used for userdraw */
1396
fprintf(js_include_file,"\n/* draw grid */\
1397
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){\
1398
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);};\
1399
var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
1400
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
1401
ctx.save();\
1402
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1403
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
1404
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
1405
ctx.font = font_family;\
1406
var barcolor = new Array();\
1407
var xstep = xsize*xmajor/(xmax - xmin);\
1408
var ystep = ysize*ymajor/(ymax - ymin);\
1409
var x2step = xstep / xminor;\
1410
var y2step = ystep / yminor;\
1411
var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
1412
if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
1413
if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
1414
ctx.beginPath();\
1415
ctx.lineWidth = line_width;\
1416
ctx.strokeStyle = stroke_color;\
1417
for(var p = zero_x ; p < xsize; p = p + xstep){\
1418
 ctx.moveTo(p,0);\
1419
 ctx.lineTo(p,ysize);\
1420
};\
1421
for(var p = zero_x ; p > 0; p = p - xstep){\
1422
 ctx.moveTo(p,0);\
1423
 ctx.lineTo(p,ysize);\
1424
};\
1425
for(var p = zero_y ; p < ysize; p = p + ystep){\
1426
 ctx.moveTo(0,p);\
1427
 ctx.lineTo(xsize,p);\
1428
};\
1429
for(var p = zero_y ; p > 0; p = p - ystep){\
1430
 ctx.moveTo(0,p);\
1431
 ctx.lineTo(xsize,p);\
1432
};\
1433
if( typeof(xaxislabel) !== 'undefined' ){\
1434
 ctx.save();\
15313 schaersvoo 1435
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1436
 var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
1437
 ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
1438
 ctx.restore();\
1439
};\
1440
if( typeof(yaxislabel) !== 'undefined' ){\
1441
 ctx.save();\
15313 schaersvoo 1442
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1443
 var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
1444
 ctx.translate(zero_x+tics_length + font_size,corr);\
1445
 ctx.rotate(-0.5*Math.PI);\
1446
 ctx.fillText(yaxislabel,0,0);\
1447
 ctx.restore();\
1448
};\
1449
ctx.stroke();\
1450
ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
1451
 
1452
if( use_axis == 1 ){
1453
fprintf(js_include_file,"\
1454
 ctx.save();\
1455
 ctx.beginPath();\
1456
 ctx.strokeStyle = stroke_color;\
1457
 ctx.lineWidth = 0.6*line_width;\
1458
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1459
  ctx.moveTo(p,0);\
1460
  ctx.lineTo(p,ysize);\
1461
 };\
1462
 for(var p = zero_x ; p > 0; p = p - x2step){\
1463
  ctx.moveTo(p,0);\
1464
  ctx.lineTo(p,ysize);\
1465
 };\
1466
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1467
  ctx.moveTo(0,p);\
1468
  ctx.lineTo(xsize,p);\
1469
 };\
1470
 for(var p = zero_y ; p > 0; p = p - y2step){\
1471
  ctx.moveTo(0,p);\
1472
  ctx.lineTo(xsize,p);\
1473
 };\
1474
 ctx.stroke();\
1475
 ctx.closePath();\
1476
 ctx.beginPath();\
1477
 ctx.lineWidth = 2*line_width;\
1478
 ctx.strokeStyle = axis_color;\
1479
 ctx.moveTo(0,zero_y);\
1480
 ctx.lineTo(xsize,zero_y);\
1481
 ctx.moveTo(zero_x,0);\
1482
 ctx.lineTo(zero_x,ysize);\
1483
 ctx.stroke();\
1484
 ctx.closePath();\
1485
 ctx.lineWidth = line_width+0.5;\
1486
 ctx.beginPath();\
1487
 for(var p = zero_x ; p < xsize; p = p + xstep){\
1488
  ctx.moveTo(p,zero_y-tics_length);\
1489
  ctx.lineTo(p,zero_y+tics_length);\
1490
 };\
1491
 for(var p = zero_x ; p > 0; p = p - xstep){\
1492
  ctx.moveTo(p,zero_y-tics_length);\
1493
  ctx.lineTo(p,zero_y+tics_length);\
1494
 };\
1495
 for(var p = zero_y ; p < ysize; p = p + ystep){\
1496
  ctx.moveTo(zero_x-tics_length,p);\
1497
  ctx.lineTo(zero_x+tics_length,p);\
1498
 };\
1499
 for(var p = zero_y ; p > 0; p = p - ystep){\
1500
  ctx.moveTo(zero_x-tics_length,p);\
1501
  ctx.lineTo(zero_x+tics_length,p);\
1502
 };\
1503
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1504
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1505
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1506
 };\
1507
 for(var p = zero_x ; p > 0; p = p - x2step){\
1508
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1509
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1510
 };\
1511
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1512
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1513
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1514
 };\
1515
 for(var p = zero_y ; p > 0; p = p - y2step){\
1516
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1517
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1518
 };\
1519
 ctx.stroke();\
1520
 ctx.closePath();\
1521
 ctx.restore();");
1522
}
1523
 
1524
if( use_axis_numbering != -1 ){
1525
fprintf(js_include_file,"\
1526
 ctx.save();\
1527
 ctx.fillColor = axis_color;\
1528
 ctx.strokeStyle = axis_color;\
1529
 ctx.lineWidth = 2*line_width;\
1530
 ctx.font = font_family;\
1531
 var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
1532
 if( x_strings[use_axis_numbering] != null ){\
1533
  var str = x_strings[use_axis_numbering];\
1534
  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1535
  ctx.beginPath();\
1536
  if( x_strings_up[use_axis_numbering] == null){\
1537
   for(var p = 0 ; p < len ; p = p+2){\
1538
    var x_nums = x2px(eval(str[p]));\
1539
    var x_text = str[p+1];\
1540
    corr = ctx.measureText(x_text).width;\
1541
    skip = 1.2*corr/xstep;\
1542
    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
1543
    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
1544
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
1545
    ctx.moveTo(x_nums,zero_y - tics_length);\
1546
    ctx.lineTo(x_nums,zero_y + tics_length);\
1547
   };\
16844 bpr 1548
  } else {\
15111 schaersvoo 1549
   for(var p = 0 ; p < len ; p = p+2){\
1550
    var x_nums = x2px(eval(str[p]));\
1551
    var x_text = str[p+1];\
1552
    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
1553
    if( corr > ysize ){corr = ysize;};\
1554
    ctx.save();\
1555
    ctx.translate(x_nums+0.25*font_size, corr);\
1556
    ctx.rotate(-1.5708);\
1557
    ctx.fillText(x_text,0,0);\
1558
    ctx.restore();\
1559
    ctx.moveTo(x_nums,zero_y - tics_length);\
1560
    ctx.lineTo(x_nums,zero_y + tics_length);\
1561
   };\
1562
  };\
1563
  ctx.closePath();\
16844 bpr 1564
 } else {\
15111 schaersvoo 1565
  skip = 1;cnt = px2x(zero_x);\
1566
  prec = Math.log(precision)/(Math.log(10));\
1567
  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
1568
  for( var p = zero_x ; p < xsize ; p = p+xstep){\
1569
   if(skip == 0 ){\
1570
    disp_cnt = cnt.toFixed(prec);\
1571
    corr = ctx.measureText(disp_cnt).width;\
1572
    skip = parseInt(1.2*corr/xstep);\
1573
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1574
   } else {\
15111 schaersvoo 1575
    skip--;\
1576
   };\
1577
   cnt = cnt + xmajor;\
1578
  };\
1579
  cnt = px2x(zero_x);skip = 1;\
1580
  for( var p = zero_x ; p > 0 ; p = p-xstep){\
1581
   if(skip == 0 ){\
1582
    disp_cnt = cnt.toFixed(prec);\
1583
    corr = ctx.measureText(disp_cnt).width;\
1584
    skip = parseInt(1.2*corr/xstep);\
1585
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1586
   } else {\
15111 schaersvoo 1587
    skip--;\
1588
   };\
1589
   cnt = cnt - xmajor;\
1590
  };\
1591
 };\
1592
 if( y_strings != null ){\
1593
  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
1594
  ctx.beginPath();\
1595
  for(var p = 0 ; p < len ; p = p+2){\
1596
   var y_nums = y2px(eval(y_strings[p]));\
1597
   var y_text = y_strings[p+1];\
1598
   corr = 2 + tics_length + ctx.measureText(y_text).width;\
1599
   if( corr > zero_x){corr = parseInt(zero_x+2); }\
1600
   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
1601
   ctx.moveTo(zero_x - tics_length,y_nums);\
1602
   ctx.lineTo(zero_x + tics_length,y_nums);\
1603
  };\
1604
  ctx.closePath();\
16844 bpr 1605
 } else {\
15111 schaersvoo 1606
  if(f_x == 1){ corr = 1.5*tics_length; }\
1607
  cnt = px2y(zero_y);skip = 1;\
1608
  for( var p = zero_y ; p < ysize ; p = p+ystep){\
1609
   if(skip == 0 ){\
1610
    skip = parseInt(1.4*font_size/ystep);\
1611
    disp_cnt = cnt.toFixed(prec);\
1612
    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1613
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1614
   } else {\
15111 schaersvoo 1615
    skip--;\
1616
   };\
1617
   cnt = cnt - ymajor;\
1618
  };\
1619
  corr = 0;cnt = px2y(zero_y);skip = 1;\
1620
  if(f_x == 1){ corr = 1.5*tics_length; }\
1621
  for( var p = zero_y ; p > 0 ; p = p-ystep){\
1622
   if(skip == 0 ){\
1623
    skip = parseInt(1.4*font_size/ystep);\
1624
    disp_cnt = cnt.toFixed(prec);\
1625
    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1626
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1627
   } else {\
15111 schaersvoo 1628
    skip--;\
1629
   };\
1630
   cnt = cnt + ymajor;\
1631
  };\
1632
 };\
1633
 ctx.stroke();\
1634
 ctx.restore();");
1635
}
1636
 
1637
if( legend_cnt != -1 ){
1638
fprintf(js_include_file,"ctx.save();\
1639
 ctx.globalAlpha = 1.0;\
15313 schaersvoo 1640
 ctx.font = \"bold \"+font_size+\"px Arial\";\
15111 schaersvoo 1641
 var y_offset = 2*font_size;\
1642
 var txt;var txt_size;\
1643
 var x_offset = xsize - 2*font_size;\
1644
 var l_length = legend0.length;\
1645
 if( typeof(legendcolors0) !== 'undefined' ){\
1646
  for(var p = 0 ; p < l_length ; p++){\
1647
    barcolor[p] = legendcolors0[p];\
1648
  };\
16844 bpr 1649
 } else {\
15111 schaersvoo 1650
  if( barcolor.length == 0 ){\
1651
   for(var p = 0 ; p < l_length ; p++){\
1652
    barcolor[p] = stroke_color;\
1653
   };\
1654
  };\
1655
 };\
1656
 for(var p = 0; p < l_length; p++){\
1657
  ctx.fillStyle = barcolor[p];\
1658
  txt = legend0[p];\
1659
  txt_size = ctx.measureText(txt).width;\
1660
  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
1661
  y_offset = parseInt(y_offset + 1.5*font_size);\
1662
 };\
1663
 ctx.restore();");
1664
}
1665
 
1666
if( barchart_cnt != 0 ){
1667
fprintf(js_include_file,"ctx.save();\
1668
 var num_barcharts = 0;\
1669
 var bar_name = eval('barchart_0');\
1670
 while( typeof(bar_name) !== 'undefined' ){\
1671
    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
1672
 };\
1673
 var bar_width = parseInt(0.8*x2step/(num_barcharts));\
1674
 for(var i=0 ; i< num_barcharts ; i++){\
1675
  bar_name = eval('barchart_'+i);\
1676
  var bar_x = new Array();\
1677
  var bar_y = new Array();\
1678
  var lb = bar_name.length;\
1679
  var idx = 0;\
1680
  var dx = parseInt(0.5*i*bar_width);\
1681
  for( var p = 0 ; p < lb ; p = p + 3 ){\
1682
   bar_x[idx] = x2px(bar_name[p]);\
1683
   bar_y[idx] = y2px(bar_name[p+1]);\
1684
   barcolor[idx] = bar_name[p+2];\
1685
   idx++;\
1686
  };\
1687
  ctx.globalAlpha = fill_opacity;\
1688
  for( var p = 0; p < idx ; p++ ){\
1689
   ctx.beginPath();\
1690
   ctx.strokeStyle = barcolor[p];\
1691
   ctx.fillStyle = barcolor[p];\
1692
   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
1693
   ctx.fill();\
1694
   ctx.stroke();\
1695
   ctx.closePath();\
1696
  };\
1697
 };\
1698
 ctx.restore();");
1699
}
1700
 
1701
if( linegraph_cnt != 0 ){
1702
fprintf(js_include_file,"ctx.save();\
1703
 ctx.globalAlpha = 1.0;\
1704
 var i = 0;\
1705
 var line_name = eval('linegraph_'+i);\
1706
 while ( typeof(line_name) !== 'undefined' ){\
1707
  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
1708
  ctx.lineWidth = parseInt(line_name[1]);\
1709
  if(line_name[2] == \"1\"){\
1710
   var d1 = parseInt(line_name[3]);\
1711
   var d2 = parseInt(line_name[4]);\
1712
   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
16844 bpr 1713
  } else {\
15111 schaersvoo 1714
  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
1715
  };\
1716
  var data_x = new Array();var data_y = new Array();\
1717
  var lb = line_name.length;var idx = 0;\
1718
  for( var p = 5 ; p < lb ; p = p + 2 ){\
1719
   data_x[idx] = x2px(line_name[p]);\
1720
   data_y[idx] = y2px(line_name[p+1]);\
1721
   idx++;\
1722
  };\
1723
  for( var p = 0; p < idx ; p++){\
1724
   ctx.beginPath();\
1725
   ctx.moveTo(data_x[p],data_y[p]);\
1726
   ctx.lineTo(data_x[p+1],data_y[p+1]);\
1727
   ctx.stroke();\
1728
   ctx.closePath();\
1729
  };\
1730
  i++;\
1731
  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
1732
 };\
1733
 ctx.restore();return;");
1734
}
1735
fprintf(js_include_file,"};");
1736
 
1737
break;
1738
 
1739
case DRAW_PIECHART:
1740
fprintf(js_include_file,"\n/* draw piecharts */\
1741
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1742
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
1743
 var obj;\
1744
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1745
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1746
 } else {\
15111 schaersvoo 1747
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1748
 };\
1749
 var center_text = use_offset || 0;\
1750
 var ld = data_color_list.length;\
1751
 var sum = 0;\
1752
 var idx = 0;\
1753
 var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
1754
 var colors = new Array();\
1755
 var data = new Array();\
1756
 for(var p = 0;p < ld; p = p + 2){\
1757
  data[idx] = parseFloat(data_color_list[p]);\
1758
  sum = sum + data[idx];\
1759
  colors[idx] = data_color_list[p+1];\
1760
  idx++;\
1761
 };\
1762
 if( use_filled > 1 ){\
1763
  var i = 2;\
1764
  for(var p = 0 ;  p < idx ; p++){\
1765
   if(i > 5 ){ i = 2; };\
1766
   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
1767
  };\
1768
 };\
1769
 var ctx = obj.getContext(\"2d\");\
1770
 ctx.save();\
1771
 var angle;\
1772
 var angle_end = 0;\
1773
 var offset = Math.PI / 2;\
1774
 ctx.globalAlpha = fill_opacity;\
1775
 var angles = [];\
1776
 for(var p=0; p < idx; p++){\
1777
  ctx.beginPath();\
1778
  ctx.moveTo(x_center,y_center);\
1779
  angle = Math.PI * (2 * data[p] / sum);\
1780
  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
1781
  ctx.lineTo(x_center, y_center);\
1782
  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
1783
  ctx.fill();\
1784
  ctx.closePath();\
1785
  angles.push(angle_end + angle - offset);\
1786
  angle_end  = angle_end + angle;\
1787
 };\
1788
 if(typeof(legend0) !== 'undefined'){\
1789
  var legenda = eval(\"legend\"+legend_cnt);\
1790
  ctx.globalAlpha = 1.0;\
1791
  ctx.font = font_family;\
1792
  var y_offset = font_size;\
1793
  var x_offset = 0;\
1794
  var txt;var txt_size;\
1795
  for(var p = 0; p < idx; p++){\
1796
   ctx.fillStyle = colors[p];\
1797
   txt = legenda[p];\
1798
   txt_size = ctx.measureText(txt).width + 2;\
1799
   if(center_text == 4){\
1800
    ctx.save();\
1801
    ctx.translate(x_center, y_center);\
1802
    ctx.rotate(angles[p]);\
1803
    ctx.fillText(txt,radius-txt_size,0);\
1804
    ctx.restore();\
16844 bpr 1805
   } else {\
15111 schaersvoo 1806
    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
1807
    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
1808
    y_offset = parseInt(y_offset + 1.5*font_size);\
1809
   };\
1810
  };\
1811
 };\
1812
 ctx.restore();\
1813
};",canvas_root_id,canvas_root_id,canvas_root_id);
1814
break;
1815
 
1816
case DRAW_JSBOXPLOT:
1817
fprintf(js_include_file,"\n/* draw jsboxplots */\
1818
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1819
function statistics(data){\
1820
 var len = data.length;\
1821
 var min = 10000000;\
1822
 var max = -10000000;\
1823
 var sum = 0;var d;\
1824
 for(var i=0;i<len;i++){\
1825
  d = data[i];\
1826
  if(d < min){min = d;}else{if(d > max){max = d;};};\
1827
  sum+= parseFloat(data[i]);\
1828
 };\
1829
 var mean = parseFloat(sum/len);\
1830
 var variance = 0;\
1831
 for(var i=0;i<len;i++){\
1832
  d = data[i];\
1833
  variance += (d - mean)*(d - mean);\
1834
 };\
1835
 variance = parseFloat(variance / len);\
1836
 var std = Math.sqrt(variance);\
1837
 data.sort(function(a,b){return a - b;});\
1838
 var median;var Q1;var Q3;\
1839
 var half = Math.floor(0.5*len);\
1840
 var q1 = Math.floor(0.25*len);\
1841
 var q3 = Math.floor(0.75*len);\
1842
 var half = Math.floor(0.5*len);\
1843
 if(len %%2 == 1){\
1844
  median = data[half];\
1845
  Q1 = data[q1];\
1846
  Q3 = data[q3];\
16844 bpr 1847
 } else {\
15111 schaersvoo 1848
  median = (data[half - 1] + data[half] )/2;\
1849
  Q1 = (data[q1 - 1] + data[q1] )/2;\
1850
  Q3 = (data[q3 - 1] + data[q3] )/2;\
1851
 };\
1852
 return [min,Q1,median,Q3,max];\
1853
};");
1854
break;
1855
 
1856
case DRAW_BOXPLOT:
1857
fprintf(js_include_file,"\n/* draw boxplots */\
1858
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1859
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){\
1860
 var obj;\
1861
 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);};\
1862
 var ctx = obj.getContext(\"2d\");\
1863
 ctx.clearRect(0,0,xsize,ysize);\
1864
 ctx.save();\
1865
 ctx.lineWidth = line_width;\
1866
 ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1867
 var colors = new Array(2);\
1868
 colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
1869
 colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1870
 if( use_filled > 1 ){\
1871
   var pat = create_Pattern(0,0,3,colors[0]);\
1872
   all_fill_patterns[0] = pat;\
1873
   pat = create_Pattern(0,0,4,colors[1]);\
1874
   all_fill_patterns[1] = pat;\
1875
 };\
1876
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
1877
 var hh = 0.25*hw;\
1878
 switch(boxplot_source){\
1879
  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
1880
  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
1881
  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
1882
  default: break;\
1883
 };\
1884
 var min,Q1,median,Q3,max;\
1885
 if(xy == 1 ){\
1886
  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
1887
  hh = Math.abs(y2px(hh) - y2px(ystart));\
1888
  hw = Math.abs(y2px(hw) - y2px(ystart));\
1889
  cxy = y2px(cxy);\
1890
  ctx.beginPath();\
1891
  ctx.moveTo(min,cxy);\
1892
  ctx.lineTo(Q1,cxy);\
1893
  ctx.moveTo(Q3,cxy);\
1894
  ctx.lineTo(max,cxy);\
1895
  ctx.moveTo(min,cxy+hh);\
1896
  ctx.lineTo(min,cxy-hh);\
1897
  ctx.moveTo(max,cxy+hh);\
1898
  ctx.lineTo(max,cxy-hh);\
1899
  ctx.closePath();\
1900
  ctx.stroke();\
1901
  ctx.beginPath();\
1902
  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
1903
  ctx.closePath();\
1904
  if( use_filled != 0 ){\
1905
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1906
   ctx.fill();\
1907
  };\
1908
  ctx.stroke();\
1909
  ctx.beginPath();\
1910
  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
1911
  ctx.closePath();\
1912
  if( use_filled != 0 ){\
1913
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1914
   ctx.fill();\
1915
  };\
1916
  ctx.stroke();\
1917
 }else{\
1918
  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
1919
  hh = Math.abs(x2px(hh) - x2px(xstart));\
1920
  hw = Math.abs(x2px(hw) - x2px(xstart));\
1921
  cxy = x2px(cxy);\
1922
  ctx.beginPath();\
1923
  ctx.moveTo(cxy,min);\
1924
  ctx.lineTo(cxy,Q1);\
1925
  ctx.moveTo(cxy,Q3);\
1926
  ctx.lineTo(cxy,max);\
1927
  ctx.moveTo(cxy + hh,min);\
1928
  ctx.lineTo(cxy - hh,min);\
1929
  ctx.moveTo(cxy + hh,max);\
1930
  ctx.lineTo(cxy - hh,max);\
1931
  ctx.closePath;\
1932
  ctx.stroke();\
1933
  ctx.beginPath();\
1934
  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
1935
  ctx.closePath();\
1936
  if( use_filled != 0 ){\
1937
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1938
   ctx.fill();\
1939
  };\
1940
  ctx.stroke();\
1941
  ctx.beginPath();\
1942
  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
1943
  ctx.closePath();\
1944
  if( use_filled != 0 ){\
1945
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1946
   ctx.fill();\
1947
  };\
1948
  ctx.stroke();\
1949
 };\
1950
 ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
1951
break;
1952
 
1953
case DRAW_CENTERSTRING:
1954
fprintf(js_include_file,"\n/* draw centerstring */\
1955
var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
1956
 var obj;\
1957
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1958
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1959
 } else {\
15111 schaersvoo 1960
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1961
 };\
1962
 var ctx = obj.getContext(\"2d\");\
1963
 ctx.save();\
1964
 ctx.clearRect(0,0,xsize,ysize);\
1965
 ctx.font = font_family;\
1966
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1967
 var stringwidth = ctx.measureText(text).width;\
1968
 var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
1969
 ctx.fillText(text,x,y2px(y));\
1970
 ctx.restore();\
1971
return;\
1972
};",canvas_root_id,canvas_root_id,canvas_root_id);
1973
break;
1974
 
1975
case DRAW_TEXTS:
1976
fprintf(js_include_file,"\n/* draw text */\
1977
var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
1978
 var obj;\
1979
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1980
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1981
 } else {\
15111 schaersvoo 1982
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1983
 };\
1984
 var ctx = obj.getContext(\"2d\");\
1985
 if( font_family != 'null' ){\
1986
  ctx.font = font_family;\
16844 bpr 1987
 } else {\
15313 schaersvoo 1988
  ctx.font = font_size+'px Arial';\
15111 schaersvoo 1989
 };\
1990
 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;};};\
1991
 if(angle2 == 0 && angle != 0){\
1992
  ctx.save();\
1993
  if(use_rotate == 1 ){\
1994
  ctx.rotate(angle*Math.PI/180);};\
1995
  ctx.restore();\
1996
 };\
1997
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1998
 if(angle2 != 0){\
1999
  ctx.save();\
2000
  ctx.translate(x,y);\
2001
  ctx.rotate((360-angle2)*(Math.PI / 180));\
2002
  ctx.fillText(text,0,0);\
2003
  ctx.restore();\
16844 bpr 2004
 } else {\
15111 schaersvoo 2005
  ctx.fillText(text,x,y);\
2006
 };\
2007
 return;\
2008
};",canvas_root_id,canvas_root_id,canvas_root_id);
2009
break;
2010
 
2011
case DRAW_INPUTS:
2012
/* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
2013
fprintf(js_include_file,"\n/* draw static input fields */\
2014
if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
2015
var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
2016
var input = document.createElement(\"input\");\
2017
input.setAttribute(\"id\",\"canvas_input\"+num);\
2018
input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
2019
if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
2020
input.setAttribute(\"size\",size);\
2021
input.setAttribute(\"value\",value);\
2022
input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
2023
if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
2024
canvas_div.appendChild(input);\
2025
if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
2026
input_cnt++;\
2027
};\
2028
function center_input(id,x,y,css_class){\
2029
 var inp = document.getElementById(id);\
2030
 var pos = inp.getBoundingClientRect();\
2031
 var center_x = parseInt(x - 0.5*(pos.width));\
2032
 var center_y = parseInt(y - 0.5*(pos.height));\
2033
 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;\");}\
2034
 catch(e){console.log('error :'+e);return;};\
2035
};");
2036
break;
2037
 
2038
case DRAW_TEXTAREAS:
2039
fprintf(js_include_file,"\n/* draw text area inputfields */\
2040
var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
2041
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
2042
var textarea = document.createElement(\"textarea\");\
2043
textarea.setAttribute(\"id\",\"canvas_input\"+num);\
2044
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
2045
textarea.setAttribute(\"cols\",cols);\
2046
textarea.setAttribute(\"rows\",rows);\
2047
textarea.value = value;\
2048
if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
2049
canvas_div.appendChild(textarea);};");
2050
break;
2051
 
2052
case DRAW_PIXELS:
2053
fprintf(js_include_file,"\n/* draw pixel */\
2054
var draw_setpixel = function(x,y,color,opacity,pixelsize){\
2055
 var idx = 2000+Math.ceil(1000*(Math.random()));\
2056
 var canvas = create_canvas%d(idx,xsize,ysize);\
2057
 var d = 0.5*pixelsize;\
2058
 var ctx = canvas.getContext(\"2d\");\
2059
 if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
2060
 ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
2061
 ctx.clearRect(0,0,xsize,ysize);\
2062
 for(var p=0; p<x.length;p++){\
2063
  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
2064
 };\
2065
 ctx.fill();ctx.stroke();\
2066
};",canvas_root_id);
2067
break;
2068
 
2069
case DRAW_CLOCK:
2070
fprintf(js_include_file,"\n/* command clock */\
2071
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
2072
var clock_ctx = clock_canvas.getContext(\"2d\");\
2073
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
2074
 clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
2075
 clock_ctx.save();\
2076
 clock_ctx.globalAlpha = clock_bg_opacity;\
2077
 this.type = type || 0;\
2078
 this.interaction = interaction || 0;\
2079
 this.H = H;\
2080
 this.M = M;\
2081
 this.S = S;\
2082
 this.xc = xc || xsize/2;\
2083
 this.yc = yc || ysize/2;\
2084
 this.radius = radius || xsize/4;\
2085
 var font_size = parseInt(0.2*this.radius);\
2086
 this.H_color = h_color || \"black\";\
2087
 this.M_color = m_color || \"black\";\
2088
 this.S_color = s_color || \"black\";\
2089
 this.fg_color = fg_color || \"black\";\
2090
 this.bg_color = bg_color || \"white\";\
2091
 clock_ctx.translate(this.xc,this.yc);\
2092
 clock_ctx.beginPath();\
2093
 clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
2094
 clock_ctx.fillStyle = this.bg_color;\
2095
 clock_ctx.fill();\
2096
 clock_ctx.closePath();\
2097
 clock_ctx.beginPath();\
2098
 clock_ctx.font = font_size+\"px Arial\";\
2099
 clock_ctx.fillStyle = this.fg_color;\
2100
 clock_ctx.textAlign = \"center\";\
2101
 clock_ctx.textBaseline = 'middle';\
2102
 var angle;var x1,y1,x2,y2;\
2103
 var angle_cos;var angle_sin;\
2104
 clock_ctx.globalAlpha = clock_fg_opacity;\
2105
 switch(type){\
2106
 case 0:clock_ctx.beginPath();\
2107
 for(var p = 1; p <= 12 ; p++){\
2108
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2109
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2110
  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2111
  clock_ctx.moveTo(x1,y1);\
2112
  clock_ctx.lineTo(x2,y2);\
2113
 };\
2114
 for(var p = 1; p <= 60 ; p++){\
2115
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2116
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2117
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2118
  clock_ctx.moveTo(x1,y1);\
2119
  clock_ctx.lineTo(x2,y2);\
2120
 };\
2121
 clock_ctx.closePath();\
2122
 clock_ctx.stroke();\
2123
 break;\
2124
 case 1:\
2125
 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;\
2126
 case 2:\
2127
 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);};\
2128
 clock_ctx.beginPath();\
2129
 for(var p = 1; p <= 12 ; p++){\
2130
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2131
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2132
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2133
  clock_ctx.moveTo(x1,y1);\
2134
  clock_ctx.lineTo(x2,y2);\
2135
 };\
2136
 for(var p = 1; p <= 60 ; p++){\
2137
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2138
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2139
  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2140
  clock_ctx.moveTo(x1,y1);\
2141
  clock_ctx.lineTo(x2,y2);\
2142
 };\
2143
 clock_ctx.closePath();\
2144
 clock_ctx.stroke();\
2145
 break;\
2146
 };\
2147
 angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
2148
 clock_ctx.rotate(angle);\
2149
 clock_ctx.beginPath();\
2150
 clock_ctx.moveTo(-3, -2);\
2151
 clock_ctx.lineTo(-3, 2);\
2152
 clock_ctx.lineTo(this.radius * 0.6, 1);\
2153
 clock_ctx.lineTo(this.radius  * 0.6, -1);\
2154
 clock_ctx.fillStyle = this.H_color;\
2155
 clock_ctx.fill();\
2156
 clock_ctx.rotate(-angle);\
2157
 angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
2158
 clock_ctx.rotate(angle);\
2159
 clock_ctx.beginPath();\
2160
 clock_ctx.moveTo(-3, -2);\
2161
 clock_ctx.lineTo(-3, 2);\
2162
 clock_ctx.lineTo(this.radius  * 0.8, 1);\
2163
 clock_ctx.lineTo(this.radius  * 0.8, -1);\
2164
 clock_ctx.fillStyle = this.M_color;\
2165
 clock_ctx.fill();\
2166
 clock_ctx.rotate(-angle);\
2167
 angle = (this.S - 15) * 2 * Math.PI / 60;\
2168
 clock_ctx.rotate(angle);\
2169
 clock_ctx.beginPath();\
2170
 clock_ctx.moveTo(0,0);\
2171
 clock_ctx.lineTo(this.radius  * 0.9, 1);\
2172
 clock_ctx.lineTo(this.radius  * 0.9, -1);\
2173
 clock_ctx.strokeStyle = this.S_color;\
2174
 clock_ctx.stroke();\
2175
 clock_ctx.restore();\
2176
};",canvas_root_id,CLOCK_CANVAS);
2177
break;
2178
 
2179
case DRAW_LATTICE:
2180
fprintf(js_include_file,"\n/* draw lattice */\
2181
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){\
2182
 var obj;\
2183
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2184
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2185
 } else {\
15111 schaersvoo 2186
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2187
 };\
2188
 var ctx = obj.getContext(\"2d\");\
2189
 ctx.save();\
2190
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
2191
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
2192
 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;};\
2193
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2194
 var radius = line_width;\
2195
 var x = 0;\
2196
 var y = 0;\
2197
 var x_step_px = xsize/(xmax-xmin);\
2198
 var y_step_px = ysize/(ymax-ymin);\
2199
 var xv1 = dx1*x_step_px;\
2200
 var yv1 = dy1*y_step_px;\
2201
 var xv2 = dx2*x_step_px;\
2202
 var yv2 = dy2*y_step_px;\
2203
 for(var p = 0; p < n1 ;p++){\
2204
  x = p*xv1 + x0;\
2205
  y = p*yv1 + y0;\
2206
  for(var c = 0; c < n2 ; c++){\
2207
   ctx.beginPath();\
2208
   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
2209
   ctx.fill();\
2210
   ctx.stroke();\
2211
   ctx.closePath();\
2212
  };\
2213
 };\
2214
 ctx.restore();\
2215
 return;\
2216
};",canvas_root_id,canvas_root_id,canvas_root_id);
2217
break;
2218
 
2219
case DRAW_XYLOGSCALE:
2220
fprintf(js_include_file,"\n/* draw xylogscale */\
2221
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){\
2222
 var obj;\
2223
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2224
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2225
 } else {\
15111 schaersvoo 2226
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2227
 };\
2228
 var ctx = obj.getContext(\"2d\");\
2229
 ctx.clearRect(0,0,xsize,ysize);\
2230
 ctx.save();\
2231
 var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
2232
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2233
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2234
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2235
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2236
 if(use_axis_numbering != -1){\
2237
  ctx.font = font_family;\
2238
  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
2239
  ymarge = parseInt(1.5*font_size);\
2240
  ctx.save();\
2241
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2242
  ctx.rect(0,0,xmarge,ysize);\
2243
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2244
  ctx.fill();\
2245
  ctx.restore();\
2246
 }else{xmarge = 0;ymarge = 0;};\
2247
 if( typeof(xaxislabel) !== 'undefined' ){\
2248
  ctx.save();\
15313 schaersvoo 2249
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2250
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2251
  corr =  ctx.measureText(xaxislabel).width;\
2252
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2253
  ctx.restore();\
2254
 };\
2255
 if( typeof(yaxislabel) !== 'undefined' ){\
2256
  ctx.save();\
15313 schaersvoo 2257
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2258
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2259
  corr = ctx.measureText(yaxislabel).width;\
2260
  ctx.translate(xmarge+font_size,corr+font_size);\
2261
  ctx.rotate(-0.5*Math.PI);\
2262
  ctx.fillText(yaxislabel,0,0);\
2263
  ctx.restore();\
2264
 };\
2265
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2266
 ctx.lineWidth = line_width;\
2267
 for(var p = x_min; p <= x_max ; p++){\
2268
  num = Math.pow(xlogbase,p);\
2269
  for(var i = 1 ; i < xlogbase ; i++){\
2270
   x_e = x2px(i*num);\
2271
   if( i == 1 ){\
2272
    ctx.lineWidth = line_width;\
2273
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2274
    if( use_axis_numbering != -1 && p > x_min){\
2275
      xtxt = xlogbase+'^'+p.toFixed(0);\
2276
      corr = 0.5*(ctx.measureText(xtxt).width);\
2277
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2278
    };\
2279
   }else{\
2280
    ctx.lineWidth = 0.2*line_width;\
2281
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2282
   };\
2283
   if( x_e >= xmarge ){\
2284
    ctx.beginPath();\
2285
    ctx.moveTo(x_e,0);\
2286
    ctx.lineTo(x_e,ysize - ymarge);\
2287
    ctx.stroke();\
2288
    ctx.closePath();\
2289
   };\
2290
  };\
2291
 };\
2292
 for(var p = y_min; p <= y_max ; p++){\
2293
  num = Math.pow(ylogbase,p);\
2294
  for(var i = 1 ; i < ylogbase ; i++){\
2295
   y_e = y2px(i*num);\
2296
   if( i == 1 ){\
2297
    ctx.lineWidth = line_width;\
2298
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2299
    if( use_axis_numbering != -1 && p > y_min){\
2300
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2301
    };\
2302
   }else{\
2303
    ctx.lineWidth = 0.2*line_width;\
2304
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2305
   };\
2306
   ctx.beginPath();\
2307
   ctx.moveTo(xmarge,y_e);\
2308
   ctx.lineTo(xsize,y_e);\
2309
   ctx.stroke();\
2310
   ctx.closePath();\
2311
  };\
2312
 };\
2313
 ctx.restore();\
2314
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2315
break;
2316
 
2317
case DRAW_XLOGSCALE:
2318
fprintf(js_include_file,"\n/* draw xlogscale */\
2319
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){\
2320
 var obj;\
2321
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2322
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2323
 } else {\
15111 schaersvoo 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);\
16844 bpr 2425
 } else {\
15111 schaersvoo 2426
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2427
 };\
2428
 var ctx = obj.getContext(\"2d\");\
2429
 ctx.clearRect(0,0,xsize,ysize);\
2430
 ctx.save();\
2431
 ctx.lineWidth = line_width;\
2432
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2433
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2434
 var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
2435
 if(use_axis_numbering != -1){\
2436
  ctx.font = font_family;\
2437
  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
2438
  ymarge = 2*font_size;\
2439
  ctx.save();\
2440
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2441
  ctx.rect(0,0,xmarge,ysize);\
2442
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2443
  ctx.fill();\
2444
  ctx.restore();\
2445
 }else{xmarge = 0;ymarge = 0;};\
2446
 if( typeof(xaxislabel) !== 'undefined' ){\
2447
  ctx.save();\
15313 schaersvoo 2448
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2449
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2450
  corr =  ctx.measureText(xaxislabel).width;\
2451
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2452
  ctx.restore();\
2453
 };\
2454
 if( typeof(yaxislabel) !== 'undefined' ){\
2455
  ctx.save();\
15313 schaersvoo 2456
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2457
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2458
  corr = ctx.measureText(yaxislabel).width;\
2459
  ctx.translate(xmarge+font_size,corr+font_size);\
2460
  ctx.rotate(-0.5*Math.PI);\
2461
  ctx.fillText(yaxislabel,0,0);\
2462
  ctx.restore();\
2463
 };\
2464
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2465
 ctx.lineWidth = line_width;\
2466
 for(var p = y_min; p <= y_max ; p++){\
2467
  num = Math.pow(ylogbase,p);\
2468
  for(var i = 1 ; i < ylogbase ; i++){\
2469
   y_e = y2px(i*num);\
2470
   if( i == 1 ){\
2471
    ctx.lineWidth = line_width;\
2472
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2473
    if( use_axis_numbering != -1 && p > y_min){\
2474
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2475
    };\
2476
   }else{\
2477
    ctx.lineWidth = 0.2*line_width;\
2478
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2479
   };\
2480
   ctx.beginPath();\
2481
   ctx.moveTo(xmarge,y_e);\
2482
   ctx.lineTo(xsize,y_e);\
2483
   ctx.stroke();\
2484
   ctx.closePath();\
2485
  };\
2486
 };\
2487
 var stepx = Math.abs(x2px(xmajor) - x2px(0));\
2488
 var minor_step = stepx / xminor;\
2489
 var prec = Math.log(precision)/Math.log(10);\
2490
 var xtxt;var corr;var flip = 0;\
2491
 for(var x = stepx ; x < xsize ; x = x + stepx){\
2492
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2493
  ctx.lineWidth = line_width;\
2494
  ctx.beginPath();\
2495
  ctx.moveTo(x,ysize-ymarge);\
2496
  ctx.lineTo(x,0);\
2497
  ctx.stroke();\
2498
  ctx.closePath();\
2499
  if( use_axis_numbering != -1){\
2500
   xtxt = (px2x(x)).toFixed(prec);\
2501
   corr = 0.5*(ctx.measureText(xtxt).width);\
2502
   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
2503
   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
2504
  };\
2505
  for(var dx = 1 ; dx < xminor ; dx++){\
2506
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2507
   ctx.lineWidth = 0.2*line_width;\
2508
   ctx.beginPath();\
2509
   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
2510
   ctx.lineTo(x+dx*minor_step,0);\
2511
   ctx.stroke();\
2512
   ctx.closePath();\
2513
  };\
2514
 };\
2515
 ctx.restore();\
2516
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2517
break;
2518
 
2519
case ADD_USER_INPUTS:
2520
fprintf(js_include_file,"\n/* add_input_xy */\
2521
function add_input_xy(){\
2522
if( wims_status == \"done\" ){return;};\
2523
var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
2524
var input_xy_div = document.createElement('div');\
2525
input_xy_div.id = \"input_xy_div\";\
2526
tooltip_div.appendChild(input_xy_div);",canvas_root_id);
2527
 
2528
if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
2529
type=1;
2530
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);
2531
}else{
2532
if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
2533
type=2;
2534
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);
2535
}else{
2536
type=3;
2537
if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
2538
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);
2539
}else{
2540
type=4;
2541
if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
2542
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);
2543
}else{
2544
type=5;
2545
if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
2546
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);
2547
}else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
2548
}}}}}
2549
 
2550
fprintf(js_include_file,"\
2551
var update_button = document.getElementById(\"update_button\");\
2552
var delete_button = document.getElementById(\"delete_button\");\
2553
update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
2554
delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
2555
};add_input_xy();");
2556
 
2557
switch(type){
2558
 case 1:
2559
fprintf(js_include_file,"\n/* add_input_xy */\
2560
function update_me(){\
15529 schaersvoo 2561
 var x = safe_eval(document.getElementById('userinput_x').value);\
2562
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2563
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2564
 return;\
2565
};");break;
2566
 case 2:
2567
fprintf(js_include_file,"\n/* add_input_xy */\
2568
function update_me(){\
15529 schaersvoo 2569
 var x = safe_eval(document.getElementById('userinput_x').value);\
2570
 var y = safe_eval(document.getElementById('userinput_y').value);\
2571
 var r = safe_eval(document.getElementById('userinput_r').value);\
15111 schaersvoo 2572
 r = scale_x_radius(r);\
2573
 userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2574
 return;\
2575
};");break;
2576
 case 3:
2577
fprintf(js_include_file,"\n/* add_input_xy */\
2578
function update_me(){\
2579
 var x,y;\
2580
 for(var p=1; p<3;p++){\
15529 schaersvoo 2581
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2582
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2583
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2584
 };\
2585
 return;\
2586
};");
2587
 break;
2588
 case 4:
2589
fprintf(js_include_file,"\n/* add_input_xy */\
2590
function update_me(){\
2591
 var x,y;\
2592
 for(var p=1; p<4;p++){\
15529 schaersvoo 2593
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2594
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2595
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2596
 };\
2597
 return;\
2598
};");
2599
 break;
2600
 case 5:
2601
 /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
2602
fprintf(js_include_file,"\n/* add_input_xy */\
2603
function update_me(){\
15529 schaersvoo 2604
 var x = safe_eval(document.getElementById('userinput_x').value);\
2605
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2606
 var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
2607
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
2608
 return;\
2609
};");
2610
 break;
2611
 default: canvas_error("hmmm, I've no idea...");break;
2612
}
2613
 
2614
break;
2615
 
2616
default:break;
2617
   }
2618
  }
2619
 }
2620
  return;
2621
}