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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
 
16942 schaersvoo 252
case INTERACTIVE:/* 1/8/2022 NOTE : getMouse() code should run at maximum speed and not be bothered with all kind of fancy tests !! */
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
   };\
16942 schaersvoo 267
   /* 1/8/2022 : latest improvements related to 'reponsiveness' will fatally lockup browsers in the pixel-by-pixel filling...at least in userdraw clickfill...*/
268
   if( typeof(clickfill) === 'function'){ return {x: mx, y: my};}else{\
16845 bpr 269
   /* test if canvas_div is inside a scrollable */\
270
   const scroll_parent = canvas_div.closest('.wims_scrollable');\
271
   if (scroll_parent){\
272
      mx = mx + scroll_parent.scrollLeft;\
273
      my = my + scroll_parent.scrollTop;\
274
   }\
275
   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
276
   /*console.log('mx before=' + mx);\
277
   console.log('xsize='+xsize);\
278
   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
279
   mx = (mx * xsize / canvas_div.offsetWidth);\
280
   /*console.log('mx after='+mx);*/\
281
   my = (my * ysize / canvas_div.offsetHeight);\
16942 schaersvoo 282
   return {x: mx, y: my};};\
16845 bpr 283
};");
15111 schaersvoo 284
break;
285
case USERDRAW_AND_ZOOM:
286
fprintf(js_include_file,"\n/* add zoom support for multidraw */\
287
function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
288
 function x_zoom(px){\
289
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
290
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
291
 };\
292
 function y_zoom(py){\
293
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
294
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
295
 };\
296
 function r_zoom(r){\
297
  return r*(xmin0/xmin);\
298
 };\
299
 var len = userdraw_x.length;\
300
 var x;var y;var r;\
301
 for(var p=0;p<len;p++){\
302
  x = userdraw_x[p];\
303
  y = userdraw_y[p];\
304
  userdraw_x[p] = x_zoom(x);\
305
  userdraw_y[p] = y_zoom(y);\
306
  if( userdraw_radius[p] ){\
307
   r = userdraw_radius[p];\
308
   userdraw_radius[p] = r_zoom(r);\
309
  };\
310
 };\
311
};");
312
break;
313
 
314
case DRAG_AND_ZOOM:
315
fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
316
function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
317
 function x_zoom(px){\
318
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
319
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
320
 };\
321
 function y_zoom(py){\
322
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
323
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
324
 };\
325
 var len = dragstuff.shapes.length;\
326
 var shape;var L;var x;var y;\
327
 for(var p=0;p<len;p++){\
328
  shape = dragstuff.shapes[p];\
329
  L = shape.x.length;\
330
  for(var i=0;i<L;i++){\
331
   x = shape.x[i];\
332
   y = shape.y[i];\
333
   dragstuff.shapes[p].x[i] = x_zoom(x);\
334
   dragstuff.shapes[p].y[i] = y_zoom(y);\
335
  };\
336
 };\
337
};");
338
break;
339
 
340
case JSPLOT_AND_ZOOM:
341
fprintf(js_include_file,"\n/* add zoom support for jscurves */\
342
function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
343
break;
344
 
345
case JS_ZOOM:
346
fprintf(js_include_file,"\n/* add zoom support */\
347
var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
348
var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
349
function redraw_canvas%d(key){\
350
 var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
351
 switch(key){\
352
  case 0: xmin++;ymin++;xmax--;ymax--;break;\
353
  case 1: xmin--;ymin--;xmax++;ymax++;break;\
354
  case 2: xmin--;xmax--;break;\
355
  case 3: xmin++;xmax++;break;\
356
  case 4: ymin--;ymax--;break;\
357
  case 5: ymax++;ymin++;break;\
358
  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
359
  default: break;\
360
 };\
361
 if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
362
 if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
363
 if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
364
 if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
365
 if( typeof(redraw_grid) === 'function'){redraw_grid();};\
366
 if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
367
 if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
368
 return;\
369
};\
370
canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
371
canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
372
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
373
function wheel_zoom(evt){\
374
 evt.preventDefault();\
375
 var key = 1;\
376
 if(evt.deltaY > 0 ){key = 0};\
377
 redraw_canvas%d(key);\
378
 return;\
379
};\
380
function check_zoom_or_pan(evt){\
381
 var mouse = getMouse(evt,zoomcanvas);\
382
 var my = mouse.y;\
383
 if(my < ysize - 30){ return; };\
384
 var mx = mouse.x;\
385
 var key = -1;\
386
 for(var p = 15 ; p < 106 ; p = p+15){\
387
  key++;\
388
  if(mx > xsize - p){\
389
   redraw_canvas%d(key);\
390
   return;\
391
  };\
392
 };\
393
 return;\
394
};",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
395
break;
396
 
397
case DRAW_FILL_PATTERN:
398
fprintf(js_include_file,"\n /* add fill pattern */ \
399
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;\
400
 switch(type){\
401
  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;\
402
  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;\
403
  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;\
404
  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;\
405
  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
406
  default: break;\
407
 };\
408
 document.body.style.cursor = 'default';return pat;\
409
};",canvas_root_id);
410
break;
411
 
412
case JS_TRANSFORM_MOUSE:
413
/* identify mouse coordinates on transformed objects using command affine */
414
fprintf(js_include_file,"\n/* translate mouse */\
415
function transform_mouse(mx,my,obj){\
416
if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
417
var m = obj.affine_matrix;\
418
var d = 1/(m[0]*m[3]-m[1]*m[2]);\
419
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]) ];\
420
return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
421
break;
422
 
423
case JS_ROTATE_MOUSE:
424
/*
425
identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
426
faster than transform matrix
427
*/
428
fprintf(js_include_file,"\n/* rotate mouse */\
429
function rotate_mouse(mx,my,obj){\
430
 if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
431
 var cos = Math.cos(obj.angle);\
432
 var sin = Math.sin(obj.angle);\
433
 var xc = obj.rotation_center[0];\
434
 var yc = obj.rotation_center[1];\
435
 var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
436
 var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
437
 return {x:x_r,y:y_r};};");
438
break;
439
 
440
case JS_FIND_ANGLE:
441
 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);};");
442
break;
443
 
444
case DRAG_EXTERNAL_IMAGE:
445
/*
446
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
447
reply is object{} and identical to reply from dragstuff library for drag&drop&click
448
*/
449
fprintf(js_include_file,"\n/* drag external images */\
450
var external_ctx = external_canvas.getContext(\"2d\");\
451
var external_canvas_rect = external_canvas.getBoundingClientRect();\
452
canvas_div.addEventListener(\"mousedown\",setxy,false);\
453
canvas_div.addEventListener(\"mouseup\",dragstop,false);\
454
canvas_div.addEventListener(\"mousemove\",dragxy,false);\
455
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
456
canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
457
canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
458
var selected_image = null;\
459
if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
460
if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
461
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
462
 var image = new Image();\
463
 image.src = URL;\
464
 slidergroup[object_cnt] = null;\
465
 image.onload = function(){\
466
  if( sx < 1 ){ sx = 0; };\
467
  if( sy < 1 ){ sy = 0; };\
468
  if( swidth < 1 ){swidth = image.width;};\
469
  if( sheight < 1 ){sheight = image.height;};\
470
  if( width < 1 ){width = image.width;};\
471
  if( height < 1 ){height = image.height;};\
472
  if( resize == 1 ){\
473
   if( swidth > image.width ){ swidth = image.width; };\
474
   if( sheight > image.height){ sheight = image.height;};\
475
   if( width > image.width ){ width = image.width; };\
476
   if( height > image.height){ height = image.height;};\
477
  };\
478
  var img = new Array(18);\
479
  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
480
  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
481
  img[6] = x0;img[7] = y0;\
482
  img[12] = ext_image_cnt;\
483
  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
484
  if(use_offset == 4 ){\
485
   img[16] = 0.5*img[8];\
486
   img[17] = 0.5*img[9];\
487
   img[6]= parseInt(img[6] - img[16]);\
488
   img[7]= parseInt(img[7] - img[17]);\
489
  };\
490
  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
16847 schaersvoo 491
  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
15111 schaersvoo 492
  ext_drag_images[ext_image_cnt] = img;\
493
  ext_image_cnt++;\
494
 };\
495
};\
496
function dragstop(evt){\
497
 if(selected_image != null){\
498
  var s_img = ext_drag_images[selected_image];\
16847 schaersvoo 499
  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 500
 };\
501
 selected_image = null;return;\
502
};\
503
function dragxy(evt){\
504
 if( selected_image != null ){\
505
  var s_img = ext_drag_images[selected_image];\
506
  var mouse = getMouse(evt,external_canvas);\
507
  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
508
  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
509
  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
510
  s_img[6] = xy[0];s_img[7] = xy[1];\
511
  ext_drag_images[selected_image] = s_img;\
512
  external_ctx.clearRect(0,0,xsize,ysize);\
513
  for(var i = 0; i < ext_image_cnt ; i++){\
514
   var img = ext_drag_images[i];\
515
   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
516
  };\
517
 };\
518
};\
519
function setxy(evt){\
520
 if( ! selected_image ){\
521
  var mouse = getMouse(evt,external_canvas);\
522
  var xm = mouse.x;\
523
  var ym = mouse.y;\
524
  var img;var xmarge;var ymarge;\
525
  for(var p = 0 ; p < ext_image_cnt ; p++){\
526
   if( ext_drag_images[p] ){\
527
    img = ext_drag_images[p];\
528
    if( img[0] != 0 ){\
529
     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
530
     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
531
      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
532
       if( img[0] == 1){\
533
        if( dragdrop_reply[img[10]].clicked == 1 ){\
534
         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
535
        }\
536
        else\
537
        {\
538
         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
539
        };\
540
        external_ctx.lineWidth = 2;\
541
        external_ctx.beginPath();\
542
        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
543
        external_ctx.closePath();\
544
        external_ctx.stroke();\
545
        return;\
546
       }\
547
       else\
548
       {\
549
        img[6] = xm;\
550
        img[7] = ym;\
551
        selected_image = p;\
552
        dragxy(evt);\
553
        ext_drag_images[p] = img;\
554
       };\
555
      };\
556
     };\
557
    };\
558
   };\
559
  };\
16844 bpr 560
 } else {\
15111 schaersvoo 561
  selected_image = null;\
562
 };\
563
};");
564
break;
565
 
566
case DRAW_EXTERNAL_IMAGE:
567
/*
568
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
569
only drag_xy !
570
snaptogrid | xsnaptogrid | ysnaptogrid works
571
14/5/2019
572
on heavy styled wims (unice.fr etc problems with mouse?
573
now uniform method of retreiving mouse coordinates getMouse()
574
*/
575
fprintf(js_include_file,"\n/* draw external images */\
576
function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
577
 var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
578
 var image = new Image();\
579
 image.src = URL;\
580
 image.onload = function(){\
581
  if( sx < 1 ){ sx = 0; };\
582
  if( sy < 1 ){ sy = 0; };\
583
  if( swidth < 1 ){swidth = image.width;};\
584
  if( sheight < 1 ){sheight = image.height;};\
585
  if( width < 1 ){width = image.width;};\
586
  if( height < 1 ){height = image.height;};\
587
  if( resize == 1 ){\
588
   if( swidth > image.width ){ swidth = image.width; };\
589
   if( sheight > image.height){ sheight = image.height;};\
590
   if( width > image.width ){ width = image.width; };\
591
   if( height > image.height){ height = image.height;};\
592
  };\
593
  var img = new Array(9);\
594
  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
595
  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
596
  img[7] = width;img[8] = height;\
597
  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
598
 };\
599
};");
600
break;
601
 
602
case DRAW_BEZIER:
603
fprintf(js_include_file,"\n/* draw bezier curve */\
604
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
605
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){\
606
 var obj;\
607
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
608
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 609
 } else {\
15111 schaersvoo 610
  obj = create_canvas%d(canvas_type,xsize,ysize);\
611
 };\
612
 var ctx = obj.getContext(\"2d\");\
613
 ctx.save();\
614
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
615
 ctx.lineWidth = linewidth;\
616
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
617
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
618
 ctx.beginPath();\
619
 ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
620
 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]));\
621
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
622
 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;};\
623
 ctx.stroke();\
624
 ctx.restore();\
625
};",canvas_root_id,canvas_root_id,canvas_root_id);
626
break;
627
 
628
case DRAW_GRIDFILL:/* not used for userdraw */
629
fprintf(js_include_file,"\n/* draw gridfill */\
630
var grid_fill_pattern;\
631
function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
632
 if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
633
 var fc = %d+canvas_type;\
634
 var obj = create_canvas%d(fc,xsize,ysize);\
635
 var ctx = obj.getContext('2d');\
636
 var x,y;\
637
 ctx.fillStyle='rgba(255,255,255,0.01)';\
638
 ctx.rect(0,0,xsize,ysize);\
639
 ctx.fill();\
640
 ctx.lineWidth = linewidth;\
641
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
642
 for( x = 0 ; x <= xsize ; x = x + dx ){\
643
  ctx.beginPath();\
644
  ctx.moveTo(x,0);\
645
  ctx.lineTo(x,ysize);\
646
  ctx.closePath();\
647
  ctx.stroke();\
648
 };\
649
 for( y = 0 ; y <= ysize; y = y + dy ){\
650
  ctx.beginPath();\
651
  ctx.moveTo(0,y);\
652
  ctx.lineTo(xsize,y);\
653
  ctx.closePath();\
654
  ctx.stroke();\
655
 };\
656
 if( use_userdraw ){\
657
  grid_fill_pattern = ctx;\
16844 bpr 658
 } else {\
15111 schaersvoo 659
  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
660
};",canvas_root_id,canvas_root_id);
661
break;
662
 
663
case DRAW_IMAGEFILL:/* not  used for userdraw */
664
fprintf(js_include_file,"\n/* draw imagefill */\
665
function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
666
 var fc = %d+canvas_type;\
667
 var obj = create_canvas%d(fc,xsize,ysize);\
668
 var ctx = obj.getContext('2d');\
669
 var img = new Image();\
670
 img.src = URL;\
671
 obj.style.visibility = 'hidden';\
672
 img.onload = function(){\
673
  if( use_scaling == 1 ){\
674
   ctx.drawImage(img,x0,y0,xsize,ysize);\
675
  }else{\
676
   var w0 = img.width;var h0 = img.height;var w;var h;\
677
   for( w = x0; w < xsize ; w = w + w0 ){\
678
    for( h = y0; h < ysize; h = h + h0){\
679
      ctx.drawImage(img,w,h,w0,h0);\
680
    };\
681
   };\
682
  };\
683
  if( use_userdraw ){\
684
   image_pattern = ctx;\
16844 bpr 685
  } else {\
15111 schaersvoo 686
   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
687
  };\
688
 };\
689
};",canvas_root_id,canvas_root_id);
690
break;
691
 
692
case DRAW_DOTFILL:/* not  used for userdraw */
693
fprintf(js_include_file,"\n/* draw dotfill */\
694
var dot_fill_pattern;\
695
function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
696
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
697
var fc = %d+canvas_type;\
698
 var obj = create_canvas%d(fc,xsize,ysize);\
699
 var ctx = obj.getContext('2d');\
700
 var x,y;\
701
 ctx.fillStyle='rgba(255,255,255,0.01)';\
702
 ctx.rect(0,0,xsize,ysize);\
703
 ctx.fill();\
704
 ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
705
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
706
 for( x = 0 ; x < xsize ; x = x + dx ){\
707
  for( y = 0 ; y < ysize ; y = y + dy ){\
708
   ctx.beginPath();\
709
   ctx.arc(x,y,radius,0,2*Math.PI,false);\
710
   ctx.closePath();\
711
   ctx.fill();\
712
  };\
713
 };\
714
 if( use_userdraw ){\
715
  dot_fill_pattern = ctx;\
16844 bpr 716
 } else {\
15111 schaersvoo 717
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
718
 };\
719
return;\
720
};",canvas_root_id,canvas_root_id);
721
break;
722
 
16714 schaersvoo 723
case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
16722 schaersvoo 724
/* use_offset
725
 0=none;
726
 1=yoffset
727
 2=xoffset
728
 3=xyoffset
729
 4=centered
730
*/
16700 schaersvoo 731
fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
16722 schaersvoo 732
function draw_subsup(ctx,x,y,txt,use_offset){\
16712 schaersvoo 733
 var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
16722 schaersvoo 734
 var m = 0.4*(ctx.measureText(txt).width);\
735
 var h = ctx.measureText('M').width;\
736
 switch(use_offset){\
737
  case 0:break;\
738
  case 1:y=y-h;;break;\
739
  case 2:x=x+h;break;\
740
  case 3:x=x+h;y=y-h;;break;\
741
  case 4:x=x-m;break;\
742
  default:break;\
743
 };\
16845 bpr 744
 var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
745
 ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
16705 schaersvoo 746
 for( c = 0 ; c < len ;c++){\
16700 schaersvoo 747
  C = txt.charAt(c);space = 0;\
16845 bpr 748
  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
16714 schaersvoo 749
  else\
16845 bpr 750
  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
16714 schaersvoo 751
  else\
16845 bpr 752
  if(C == ' '){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
16714 schaersvoo 753
  else\
754
  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
16845 bpr 755
  else{ctx.font = S+'px Helvetica';};\
16712 schaersvoo 756
  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
16700 schaersvoo 757
 };\
16705 schaersvoo 758
 ctx.stroke();\
16700 schaersvoo 759
 ctx.restore();\
760
 return;\
761
};");
762
break;
763
 
15111 schaersvoo 764
case DRAW_TEXTFILL:/* not  used for userdraw */
765
fprintf(js_include_file,"\n/* draw textfill */\
766
var text_fill_pattern;\
767
function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
768
var fc = %d+canvas_type;\
769
var obj = create_canvas%d(fc,xsize,ysize);\
770
var ctx = obj.getContext('2d');\
771
ctx.font = fontfamily;\
772
var dx = 2+(ctx.measureText(txt)).width;\
773
var dy = 2+(ctx.measureText('MI')).width;\
774
ctx.fillStyle='rgba(255,255,255,0.01)';\
775
ctx.rect(0,0,xsize,ysize);\
776
ctx.fill();\
777
ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
778
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
779
for(var x = 0 ; x <= xsize ; x = x + dx ){\
780
 for(var y = 0 ; y <= ysize ; y = y + dy ){\
781
  ctx.fillText(txt, x, y);\
782
 };\
783
};\
784
if( use_userdraw ){\
785
 text_fill_pattern = ctx;\
786
}\
787
else\
788
{\
789
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
790
};\
791
return;};",canvas_root_id,canvas_root_id);
792
break;
793
 
794
case DRAW_DIAMONDFILL:/* not used for userdraw */
795
fprintf(js_include_file,"\n/* draw hatch fill */\
796
var diamond_fill_pattern;\
797
function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
798
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
799
var fc = %d+canvas_type;\
800
var obj = create_canvas%d(fc,xsize,ysize);\
801
var ctx = obj.getContext('2d');\
802
var x;\
803
var y;\
804
ctx.lineWidth = linewidth;\
805
ctx.fillStyle='rgba(255,255,255,0.01)';\
806
ctx.rect(0,0,xsize,ysize);\
807
ctx.fill();\
808
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
809
y = ysize;\
810
ctx.beginPath();\
811
for( x = 0 ; x <= xsize ; x = x + dx ){\
812
  ctx.moveTo(x,0);\
813
  ctx.lineTo(xsize,y);\
814
  y = y - dy;\
815
};\
816
y=0;\
817
for( x = xsize ; x >= 0 ; x = x - dx){\
818
 ctx.moveTo(x,ysize);\
819
 ctx.lineTo(0,y);\
820
 y = y + dy;\
821
};\
822
y = 0;\
823
for( x = 0 ; x <= xsize ; x = x + dx ){\
824
 ctx.moveTo(x,0);\
825
 ctx.lineTo(0,y);\
826
 y = y + dy;\
827
};\
828
y = 0;\
829
for( x = 0 ; x <= xsize ; x = x + dx ){\
830
 ctx.moveTo(xsize,y);\
831
 ctx.lineTo(x,ysize);\
832
 y = y + dy;\
833
};\
834
ctx.closePath();\
835
ctx.stroke();\
836
if( use_userdraw ){\
837
 diamond_fill_pattern = ctx;\
838
}\
839
else\
840
{\
841
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
842
};\
843
return;\
844
}",canvas_root_id,canvas_root_id);
845
break;
846
 
847
case DRAW_HATCHFILL:/* not used for userdraw */
848
fprintf(js_include_file,"\n/* draw hatch fill */\
849
var hatch_fill_pattern;\
850
function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
851
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
852
var fc = %d+canvas_type;\
853
var obj = create_canvas%d(fc,xsize,ysize);\
854
var ctx = obj.getContext('2d');\
855
var x,y;\
856
ctx.fillStyle='rgba(255,255,255,0.01)';\
857
ctx.rect(0,0,xsize,ysize);\
858
ctx.fill();\
859
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
860
ctx.lineWidth = linewidth;\
861
y = ysize;\
862
ctx.beginPath();\
863
for( x = 0 ; x <= xsize ; x = x + dx ){\
864
 ctx.moveTo(x,0);\
865
 ctx.lineTo(xsize,y);\
866
 y = y - dy;\
867
};\
868
y = 0;\
869
for( x = xsize ; x >= dx ; x = x - dx){\
870
 ctx.moveTo(x,ysize);\
871
 ctx.lineTo(0,y);\
872
 y = y + dy;\
873
};\
874
ctx.closePath();\
875
ctx.stroke();\
876
if( use_userdraw ){\
877
 hatch_fill_pattern = ctx;\
878
}\
879
else\
880
{\
881
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
882
};\
883
return;};",canvas_root_id,canvas_root_id);
884
break;
885
 
886
case DRAW_LINES:/*  used for js-tracing */
887
fprintf(js_include_file,"\n/* draw lines */\
888
function calc_line(x1,x2,y1,y2){\
889
 var marge = 2;\
890
 if(x1 < x2+marge && x1>x2-marge){\
891
  return [x1,0,x1,ysize];\
892
 };\
893
 if(y1 < y2+marge && y1>y2-marge){\
894
  return [0,y1,xsize,y1];\
895
 };\
896
 var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
897
 var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
898
 return [0,Y1,xsize,Y2];\
899
};\
900
var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
901
 ctx.save();\
902
 var line = new Array(4);\
903
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
904
 ctx.lineWidth = line_width;\
905
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
906
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
907
 for(var p = 0 ; p < x_points.length ; p = p+2 ){\
908
  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
909
  ctx.beginPath();\
910
  ctx.moveTo(line[0],line[1]);\
911
  ctx.lineTo(line[2],line[3]);\
912
  ctx.closePath();\
913
  ctx.stroke();\
914
  }\
915
  ctx.restore();\
916
  return;\
917
 };");
918
break;
919
 
920
case DRAW_CROSSHAIRS:/*  used for tracing */
921
fprintf(js_include_file,"\n/* draw crosshairs  */\
922
var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
923
 ctx.save();\
924
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
925
 ctx.lineWidth = line_width;\
926
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
927
 var x1,x2,y1,y2;\
928
 for(var p = 0 ; p < x_points.length ; p++ ){\
929
  x1 = x_points[p] - crosshair_size;\
930
  x2 = x_points[p] + crosshair_size;\
931
  y1 = y_points[p] - crosshair_size;\
932
  y2 = y_points[p] + crosshair_size;\
933
  ctx.beginPath();\
934
  ctx.moveTo(x1,y1);\
935
  ctx.lineTo(x2,y2);\
936
  ctx.closePath();\
937
  ctx.stroke();\
938
  ctx.beginPath();\
939
  ctx.moveTo(x2,y1);\
940
  ctx.lineTo(x1,y2);\
941
  ctx.closePath();\
942
  ctx.stroke();\
943
 }\
944
 ctx.restore();\
945
  return;\
946
};");
947
break;
948
 
949
case DRAW_VIDEO:/* not  used for userdraw */
950
fprintf(js_include_file,"\n/* draw video */\
951
var draw_video = function(canvas_root_id,x,y,w,h,URL){\
952
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
953
 var video_div = document.createElement(\"div\");\
954
 canvas_div.appendChild(video_div);\
955
 video_div.style.position = \"absolute\";\
956
 video_div.style.left = x+\"px\";\
957
 video_div.style.top = y+\"px\";\
958
 video_div.style.width = w+\"px\";\
959
 video_div.style.height = h+\"px\";\
960
 var video = document.createElement(\"video\");\
961
 video_div.appendChild(video);\
962
 video.style.width = w+\"px\";\
963
 video.style.height = h+\"px\";\
964
 video.autobuffer = true;\
965
 video.controls = true;video.autoplay = false;\
966
 var src = document.createElement(\"source\");\
967
 src.type = \"video/mp4\";\
968
 src.src = URL;\
969
 video.appendChild(src);\
970
 video.load();\
971
 return;\
972
};");
973
break;
974
 
975
case DRAW_AUDIO:/* not used for userdraw */
976
fprintf(js_include_file,"\n/* draw audio */\
977
var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
978
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
979
 var audio_div = document.createElement(\"div\");\
980
 canvas_div.appendChild(audio_div);\
981
 audio_div.style.position = \"absolute\";\
982
 audio_div.style.left = x+\"px\";\
983
 audio_div.style.top = y+\"px\";\
984
 audio_div.style.width = w+\"px\";\
985
 audio_div.style.height = h+\"px\";\
986
 var audio = document.createElement(\"audio\");\
987
 audio_div.appendChild(audio);\
988
 audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
989
 audio.autobuffer = true;\
990
 if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
991
 if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
992
 var src1 = document.createElement(\"source\");\
993
 src1.type = \"audio/ogg\";\
994
 src1.src = URL1;\
995
 audio.appendChild(src1);\
996
 var src2 = document.createElement(\"source\");\
997
 src2.type = \"audio/mpeg\";\
998
 src2.src = URL2;\
999
 audio.appendChild(src2);\
1000
 audio.load();\
1001
 return;\
1002
};");
1003
break;
1004
 
1005
case DRAW_HTTP:/* not  used for userdraw */
1006
fprintf(js_include_file,"\n/* draw http */\
1007
var draw_http = function(canvas_root_id,x,y,w,h,URL){\
1008
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
1009
 var http_div = document.createElement(\"div\");\
1010
 var iframe = document.createElement(\"iframe\");\
1011
 canvas_div.appendChild(http_div);\
1012
 http_div.appendChild(iframe);\
1013
 iframe.src = URL;\
1014
 iframe.setAttribute(\"width\",w);\
1015
 iframe.setAttribute(\"height\",h);\
1016
 return;\
1017
};");
1018
break;
1019
 
1020
case DRAW_XML:
1021
/*
1022
!! function draw_xml(object)
1023
!! produced by : DRAW_XML
1024
!! used by commands: katex,latex,mathml,html,obabel
1025
!! uses js-functions: calculate_size(xml_div),rad2deg(rad)
1026
!! user interaction: drag,onclick,slider
1027
!! reply function: read_dragdrop()
1028
 
1029
onclick=0; no interaction
1030
onclick=1: click
1031
onclick=2: drag ==> always centered (use_offset=4)
1032
onclick=3: slider + click on object
1033
onclick=4: slider (always active , keyword 'active' in slider params)
1034
onclick=5: slider + dragdrop
1035
xy:  drag_type = 0;
1036
x:   drag_type = 1;
1037
y:   drag_type = 2;
1038
 
1039
obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
1040
*/
1041
 
1042
fprintf(js_include_file,"\n/* draw xml */\
1043
function centered(xml_div,obj){\
1044
 var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
1045
 var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
1046
 obj.offset = [ ww , hh ];\
16845 bpr 1047
 /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
1048
 xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
1049
 xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
1050
 xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
15111 schaersvoo 1051
};\
1052
function rad2deg(rad){return rad*180/(Math.PI);};\
1053
if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
1054
function draw_xml(obj){\
1055
 var mouse;var xy = [obj.x[0],obj.y[0]];\
1056
 var xml_div;\
1057
 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};\
1058
 if( obj.once ){\
1059
  xml_div = document.createElement('DIV');\
1060
  canvas_div.appendChild(xml_div);\
1061
  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
1062
  xml_div.id = 'xml_div'+obj.id;\
1063
  xml_div.innerHTML = obj.mathml;\
16845 bpr 1064
  xml_div.classList.add('canvasdraw_xml');\
15111 schaersvoo 1065
  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
1066
  xml_div.style.font = obj.fontfamily;\
1067
  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 1068
  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
16844 bpr 1069
 } else {\
15111 schaersvoo 1070
  xml_div = document.getElementById('xml_div'+obj.id );\
1071
 };\
16845 bpr 1072
 if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
1073
 /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
1074
 xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
1075
 xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
1076
 xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
15111 schaersvoo 1077
 var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
1078
 var no_color = 'rgba(255,255,255,0)';var dragging = false;\
1079
 if( obj.use_affine != 0 || obj.angle != 0 ){\
1080
  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)';\
1081
 };\
1082
 if( obj.once ){\
1083
  obj.once = false;\
1084
  switch(obj.onclick){\
1085
   case 2:\
1086
    if(isTouch){\
1087
     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);\
1088
     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);\
1089
     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);\
1090
     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 1091
    } else {\
15111 schaersvoo 1092
     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);\
1093
     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);\
1094
     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);\
1095
    };\
1096
    break;\
1097
   case 1:\
16844 bpr 1098
    if(isTouch){\
15111 schaersvoo 1099
     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 1100
    } else {\
15111 schaersvoo 1101
     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);\
1102
    };\
1103
    break;\
1104
   case 3:\
16844 bpr 1105
    if(isTouch){\
15111 schaersvoo 1106
     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 1107
    } else {\
15111 schaersvoo 1108
     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);\
1109
    };\
1110
    break;\
1111
   case 4:slidergroup[obj.object_cnt] = obj;break;\
1112
   case 5:slidergroup[obj.object_cnt] = obj;\
1113
    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);\
1114
    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);\
1115
    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);\
1116
    break;\
1117
   default: break;\
1118
  };\
1119
 };\
1120
 return;\
16642 schaersvoo 1121
};",mathjax);
15111 schaersvoo 1122
 
1123
/*
1124
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));\
1125
*/
1126
break;
1127
 
1128
case DRAW_SGRAPH:
1129
/*
1130
 xstart = given
1131
 ystart = given
1132
 sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
1133
*/
1134
fprintf(js_include_file,"\n/* draw sgraph */\
1135
var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
1136
 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);};\
1137
 var ctx = obj.getContext(\"2d\");\
1138
 ctx.font = fontfamily;\
1139
 var minor_opacity = 0.8*opacity;\
1140
 ctx.clearRect(0,0,xsize,ysize);\
1141
 var zero_x = 0.1*xsize;\
1142
 var zero_y = 0.9*ysize;\
1143
 var snor_x;var snor_y;\
1144
 if( xstart != xmin){\
1145
  snor_x = 0.1*xsize;\
16844 bpr 1146
 }else{\
15111 schaersvoo 1147
  snor_x = 0;\
1148
  xstart = xmin;\
1149
 };\
1150
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1151
 ctx.lineWidth = 2;\
1152
 ctx.beginPath();\
1153
 ctx.moveTo(xsize,zero_y);\
1154
 ctx.lineTo(zero_x,zero_y);\
1155
 ctx.lineTo(zero_x,0);\
1156
 ctx.stroke();\
1157
 ctx.closePath();\
1158
 ctx.beginPath();\
1159
 ctx.moveTo(zero_x,zero_y);\
1160
 ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
1161
 ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
1162
 ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
1163
 ctx.lineTo(zero_x + snor_x,zero_y);\
1164
 ctx.stroke();\
1165
 ctx.closePath();\
1166
 ctx.beginPath();\
1167
 var num = xstart;\
1168
 var flipflop = 1;\
1169
 var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
1170
 var txtsize;var txt_marge=step_x - 5;\
1171
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1172
  txtsize = ctx.measureText(num).width;\
1173
  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
1174
  if( flipflop == 1){\
1175
   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
16844 bpr 1176
  } else {\
15111 schaersvoo 1177
   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
1178
  };\
1179
  num = num + xmajor;\
1180
 };\
1181
 ctx.stroke();\
1182
 ctx.closePath();\
1183
 ctx.lineWidth = 1;\
1184
 ctx.beginPath();\
1185
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1186
   ctx.moveTo(x,zero_y);\
1187
   ctx.lineTo(x,0);\
1188
 };\
1189
 ctx.stroke();\
1190
 ctx.closePath();\
1191
 if( xminor > 1){\
1192
  ctx.lineWidth = 0.5;\
1193
  ctx.beginPath();\
1194
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1195
  var minor_step_x = step_x / xminor;\
1196
  var nx;\
1197
  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
1198
    num = 1;\
1199
    for(var p = 1 ; p < xminor ; p++){\
1200
     nx = x + num*minor_step_x;\
1201
     ctx.moveTo(nx,zero_y);\
1202
     ctx.lineTo(nx,0);\
1203
     num++;\
1204
    };\
1205
  };\
1206
  ctx.stroke();\
1207
  ctx.closePath();\
1208
  ctx.beginPath();\
1209
  ctx.lineWidth = 2;\
1210
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1211
  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1212
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
1213
  };\
1214
  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
1215
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
1216
  };\
1217
  ctx.stroke();\
1218
  ctx.closePath();\
1219
  ctx.lineWidth = 0.5;\
1220
 };\
1221
 xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
1222
 if( ystart != ymin){\
1223
  snor_y = 0.1*ysize;\
16844 bpr 1224
 } else {\
15111 schaersvoo 1225
  snor_y = 0;\
1226
  ystart = ymin;\
1227
 };\
1228
 ctx.lineWidth = 2;\
1229
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1230
 ctx.beginPath();\
1231
 ctx.moveTo(zero_x,zero_y);\
1232
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
1233
 ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
1234
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
1235
 ctx.lineTo(zero_x,zero_y - snor_y);\
1236
 ctx.stroke();\
1237
 ctx.closePath();\
1238
 ctx.beginPath();\
1239
 ctx.lineWidth = 1;\
1240
 num = ystart;\
1241
 var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
1242
 for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
1243
  ctx.moveTo(zero_x,y);\
1244
  ctx.lineTo(xsize,y);\
1245
  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
1246
  num = num + ymajor;\
1247
 };\
1248
 ctx.stroke();\
1249
 ctx.closePath();\
1250
 if( yminor > 1){\
1251
  ctx.lineWidth = 0.5;\
1252
  ctx.beginPath();\
1253
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1254
  var minor_step_y = step_y / yminor;\
1255
  var ny;\
1256
  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
1257
   num = 1;\
1258
   for(var p = 1 ;p < yminor;p++){\
1259
     ny = y + num*minor_step_y;\
1260
     ctx.moveTo(zero_x,ny);\
1261
     ctx.lineTo(xsize,ny);\
1262
     num++;\
1263
    };\
1264
  };\
1265
  ctx.stroke();\
1266
  ctx.closePath();\
1267
  ctx.lineWidth = 2;\
1268
  ctx.beginPath();\
1269
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1270
  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
1271
   ctx.moveTo(zero_x,y);\
1272
   ctx.lineTo(zero_x+12,y);\
1273
  };\
1274
  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
1275
   ctx.moveTo(zero_x,y);\
1276
   ctx.lineTo(zero_x+6,y);\
1277
  };\
1278
  ctx.stroke();\
1279
  ctx.closePath();\
1280
 };\
1281
 ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
1282
 if( typeof(legend%d)  !== 'undefined' ){\
1283
  ctx.globalAlpha = 1.0;\
1284
  var y_offset = 2*font_size;\
1285
  var txt;var txt_size;\
1286
  var x_offset = xsize - 2*font_size;\
1287
  var l_length = legend%d.length;var barcolor = new Array();\
1288
  if( typeof(legendcolors%d) !== 'undefined' ){\
1289
   for(var p = 0 ; p < l_length ; p++){\
1290
    barcolor[p] = legendcolors%d[p];\
1291
   };\
16844 bpr 1292
  } else {\
15111 schaersvoo 1293
   if( barcolor.length == 0 ){\
1294
    for(var p = 0 ; p < l_length ; p++){\
1295
     barcolor[p] = stroke_color;\
1296
    };\
1297
   };\
1298
  };\
1299
  for(var p = 0; p < l_length; p++){\
1300
   ctx.fillStyle = barcolor[p];\
1301
   txt = legend%d[p];\
1302
   txt_size = ctx.measureText(txt).width;\
1303
   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
1304
   y_offset = parseInt(y_offset + 1.5*font_size);\
1305
  };\
1306
 };\
1307
 if( typeof(xaxislabel) !== 'undefined' ){\
1308
   ctx.fillStyle = \'#000000\';\
1309
   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
1310
   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
1311
 };\
1312
 if( typeof(yaxislabel) !== 'undefined'){\
1313
   ctx.save();\
1314
   ctx.fillStyle = \'#000000\';\
1315
   var txt_size = ctx.measureText(yaxislabel).width;\
1316
   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
1317
   ctx.rotate(-0.5*Math.PI);\
1318
   ctx.fillText(yaxislabel,0,0);\
1319
   ctx.restore();\
1320
 };\
1321
};",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);
1322
break;
1323
 
1324
case DRAW_NUMBERLINE:
1325
fprintf(js_include_file,"\n/* draw numberline */\
1326
var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
1327
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
1328
 var ctx = obj.getContext(\"2d\");\
1329
 ctx.lineWidth = linewidth || 1;\
1330
 ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
15313 schaersvoo 1331
 ctx.font = fontfamily || 'Arial 12px';\
15111 schaersvoo 1332
 var fontsize = parseInt(ctx.font);\
1333
 ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
1334
 x1 = x2px(x1);\
1335
 x0 = x2px(x0);\
1336
 y0 = y2px(y0);\
1337
 y1 = y2px(y1);\
1338
 var sub_devision = -1;\
1339
 if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
1340
 var ybase1 = parseInt( y0 + fontsize + 2 );\
1341
 var ybase2 = parseInt( ybase1 + fontsize + 2 );\
1342
 var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
1343
 var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
1344
 xmajor = x2px(xmajor) - x2px(0);\
1345
 var i;var len;var p;\
1346
 xminor = xmajor / xminor;\
1347
 ctx.beginPath();\
1348
 for(p = x0 ; p < x1 ; p = p + xmajor){\
1349
  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
1350
  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
1351
   ctx.moveTo(s,y0);\
1352
   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
1353
   i++;\
1354
  };\
1355
 };\
1356
 ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
1357
 ctx.closePath();\
1358
 ctx.stroke();\
1359
 if( use_axis_numbering >-1 ){\
1360
  var str = x_strings[use_axis_numbering];\
1361
  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1362
  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
1363
  ctx.beginPath();\
1364
  if( x_strings_up[use_axis_numbering] == null){\
1365
   for(var p = 0 ; p < len ; p = p+2){\
1366
    var x_nums = x2px(eval(str[p]));\
1367
    var x_text = str[p+1];\
1368
    corr = ctx.measureText(x_text).width;\
1369
    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1370
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
1371
   };\
16844 bpr 1372
  } else {\
15111 schaersvoo 1373
   for(var p = 0 ; p < len ; p = p+2){\
1374
    x_nums = x2px(eval(str[p]));\
1375
    x_text = str[p+1];\
1376
    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
1377
    ctx.save();\
1378
    ctx.translate(x_nums+0.5*fontsize, corr);\
1379
    ctx.rotate(-1.5708);\
1380
    ctx.fillText(x_text,0,0);\
1381
    ctx.restore();\
1382
   };\
1383
  }\
16844 bpr 1384
 } else {\
15111 schaersvoo 1385
  var corr;var num;var flipflop = 0;var off = ybase1;\
1386
  var prec = parseInt(Math.log(precision)/Math.log(10));\
1387
  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
1388
   num = (px2x(p)).toFixed(prec);\
1389
   corr = ctx.measureText(num).width;\
1390
   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1391
   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
1392
  };\
1393
 };\
1394
};",canvas_root_id);
1395
break;
1396
 
1397
case DRAW_GRID:/* not used for userdraw */
1398
fprintf(js_include_file,"\n/* draw grid */\
1399
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){\
1400
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);};\
1401
var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
1402
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
1403
ctx.save();\
1404
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1405
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
1406
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
1407
ctx.font = font_family;\
1408
var barcolor = new Array();\
1409
var xstep = xsize*xmajor/(xmax - xmin);\
1410
var ystep = ysize*ymajor/(ymax - ymin);\
1411
var x2step = xstep / xminor;\
1412
var y2step = ystep / yminor;\
1413
var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
1414
if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
1415
if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
1416
ctx.beginPath();\
1417
ctx.lineWidth = line_width;\
1418
ctx.strokeStyle = stroke_color;\
1419
for(var p = zero_x ; p < xsize; p = p + xstep){\
1420
 ctx.moveTo(p,0);\
1421
 ctx.lineTo(p,ysize);\
1422
};\
1423
for(var p = zero_x ; p > 0; p = p - xstep){\
1424
 ctx.moveTo(p,0);\
1425
 ctx.lineTo(p,ysize);\
1426
};\
1427
for(var p = zero_y ; p < ysize; p = p + ystep){\
1428
 ctx.moveTo(0,p);\
1429
 ctx.lineTo(xsize,p);\
1430
};\
1431
for(var p = zero_y ; p > 0; p = p - ystep){\
1432
 ctx.moveTo(0,p);\
1433
 ctx.lineTo(xsize,p);\
1434
};\
1435
if( typeof(xaxislabel) !== 'undefined' ){\
1436
 ctx.save();\
15313 schaersvoo 1437
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1438
 var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
1439
 ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
1440
 ctx.restore();\
1441
};\
1442
if( typeof(yaxislabel) !== 'undefined' ){\
1443
 ctx.save();\
15313 schaersvoo 1444
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1445
 var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
1446
 ctx.translate(zero_x+tics_length + font_size,corr);\
1447
 ctx.rotate(-0.5*Math.PI);\
1448
 ctx.fillText(yaxislabel,0,0);\
1449
 ctx.restore();\
1450
};\
1451
ctx.stroke();\
1452
ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
1453
 
1454
if( use_axis == 1 ){
1455
fprintf(js_include_file,"\
1456
 ctx.save();\
1457
 ctx.beginPath();\
1458
 ctx.strokeStyle = stroke_color;\
1459
 ctx.lineWidth = 0.6*line_width;\
1460
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1461
  ctx.moveTo(p,0);\
1462
  ctx.lineTo(p,ysize);\
1463
 };\
1464
 for(var p = zero_x ; p > 0; p = p - x2step){\
1465
  ctx.moveTo(p,0);\
1466
  ctx.lineTo(p,ysize);\
1467
 };\
1468
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1469
  ctx.moveTo(0,p);\
1470
  ctx.lineTo(xsize,p);\
1471
 };\
1472
 for(var p = zero_y ; p > 0; p = p - y2step){\
1473
  ctx.moveTo(0,p);\
1474
  ctx.lineTo(xsize,p);\
1475
 };\
1476
 ctx.stroke();\
1477
 ctx.closePath();\
1478
 ctx.beginPath();\
1479
 ctx.lineWidth = 2*line_width;\
1480
 ctx.strokeStyle = axis_color;\
1481
 ctx.moveTo(0,zero_y);\
1482
 ctx.lineTo(xsize,zero_y);\
1483
 ctx.moveTo(zero_x,0);\
1484
 ctx.lineTo(zero_x,ysize);\
1485
 ctx.stroke();\
1486
 ctx.closePath();\
1487
 ctx.lineWidth = line_width+0.5;\
1488
 ctx.beginPath();\
1489
 for(var p = zero_x ; p < xsize; p = p + xstep){\
1490
  ctx.moveTo(p,zero_y-tics_length);\
1491
  ctx.lineTo(p,zero_y+tics_length);\
1492
 };\
1493
 for(var p = zero_x ; p > 0; p = p - xstep){\
1494
  ctx.moveTo(p,zero_y-tics_length);\
1495
  ctx.lineTo(p,zero_y+tics_length);\
1496
 };\
1497
 for(var p = zero_y ; p < ysize; p = p + ystep){\
1498
  ctx.moveTo(zero_x-tics_length,p);\
1499
  ctx.lineTo(zero_x+tics_length,p);\
1500
 };\
1501
 for(var p = zero_y ; p > 0; p = p - ystep){\
1502
  ctx.moveTo(zero_x-tics_length,p);\
1503
  ctx.lineTo(zero_x+tics_length,p);\
1504
 };\
1505
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1506
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1507
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1508
 };\
1509
 for(var p = zero_x ; p > 0; p = p - x2step){\
1510
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1511
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1512
 };\
1513
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1514
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1515
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1516
 };\
1517
 for(var p = zero_y ; p > 0; p = p - y2step){\
1518
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1519
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1520
 };\
1521
 ctx.stroke();\
1522
 ctx.closePath();\
1523
 ctx.restore();");
1524
}
1525
 
1526
if( use_axis_numbering != -1 ){
1527
fprintf(js_include_file,"\
1528
 ctx.save();\
1529
 ctx.fillColor = axis_color;\
1530
 ctx.strokeStyle = axis_color;\
1531
 ctx.lineWidth = 2*line_width;\
1532
 ctx.font = font_family;\
1533
 var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
1534
 if( x_strings[use_axis_numbering] != null ){\
1535
  var str = x_strings[use_axis_numbering];\
1536
  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1537
  ctx.beginPath();\
1538
  if( x_strings_up[use_axis_numbering] == null){\
1539
   for(var p = 0 ; p < len ; p = p+2){\
1540
    var x_nums = x2px(eval(str[p]));\
1541
    var x_text = str[p+1];\
1542
    corr = ctx.measureText(x_text).width;\
1543
    skip = 1.2*corr/xstep;\
1544
    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
1545
    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
1546
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
1547
    ctx.moveTo(x_nums,zero_y - tics_length);\
1548
    ctx.lineTo(x_nums,zero_y + tics_length);\
1549
   };\
16844 bpr 1550
  } else {\
15111 schaersvoo 1551
   for(var p = 0 ; p < len ; p = p+2){\
1552
    var x_nums = x2px(eval(str[p]));\
1553
    var x_text = str[p+1];\
1554
    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
1555
    if( corr > ysize ){corr = ysize;};\
1556
    ctx.save();\
1557
    ctx.translate(x_nums+0.25*font_size, corr);\
1558
    ctx.rotate(-1.5708);\
1559
    ctx.fillText(x_text,0,0);\
1560
    ctx.restore();\
1561
    ctx.moveTo(x_nums,zero_y - tics_length);\
1562
    ctx.lineTo(x_nums,zero_y + tics_length);\
1563
   };\
1564
  };\
1565
  ctx.closePath();\
16844 bpr 1566
 } else {\
15111 schaersvoo 1567
  skip = 1;cnt = px2x(zero_x);\
1568
  prec = Math.log(precision)/(Math.log(10));\
1569
  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
1570
  for( var p = zero_x ; p < xsize ; p = p+xstep){\
1571
   if(skip == 0 ){\
1572
    disp_cnt = cnt.toFixed(prec);\
1573
    corr = ctx.measureText(disp_cnt).width;\
1574
    skip = parseInt(1.2*corr/xstep);\
1575
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1576
   } else {\
15111 schaersvoo 1577
    skip--;\
1578
   };\
1579
   cnt = cnt + xmajor;\
1580
  };\
1581
  cnt = px2x(zero_x);skip = 1;\
1582
  for( var p = zero_x ; p > 0 ; p = p-xstep){\
1583
   if(skip == 0 ){\
1584
    disp_cnt = cnt.toFixed(prec);\
1585
    corr = ctx.measureText(disp_cnt).width;\
1586
    skip = parseInt(1.2*corr/xstep);\
1587
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1588
   } else {\
15111 schaersvoo 1589
    skip--;\
1590
   };\
1591
   cnt = cnt - xmajor;\
1592
  };\
1593
 };\
1594
 if( y_strings != null ){\
1595
  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
1596
  ctx.beginPath();\
1597
  for(var p = 0 ; p < len ; p = p+2){\
1598
   var y_nums = y2px(eval(y_strings[p]));\
1599
   var y_text = y_strings[p+1];\
1600
   corr = 2 + tics_length + ctx.measureText(y_text).width;\
1601
   if( corr > zero_x){corr = parseInt(zero_x+2); }\
1602
   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
1603
   ctx.moveTo(zero_x - tics_length,y_nums);\
1604
   ctx.lineTo(zero_x + tics_length,y_nums);\
1605
  };\
1606
  ctx.closePath();\
16844 bpr 1607
 } else {\
15111 schaersvoo 1608
  if(f_x == 1){ corr = 1.5*tics_length; }\
1609
  cnt = px2y(zero_y);skip = 1;\
1610
  for( var p = zero_y ; p < ysize ; p = p+ystep){\
1611
   if(skip == 0 ){\
1612
    skip = parseInt(1.4*font_size/ystep);\
1613
    disp_cnt = cnt.toFixed(prec);\
1614
    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1615
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1616
   } else {\
15111 schaersvoo 1617
    skip--;\
1618
   };\
1619
   cnt = cnt - ymajor;\
1620
  };\
1621
  corr = 0;cnt = px2y(zero_y);skip = 1;\
1622
  if(f_x == 1){ corr = 1.5*tics_length; }\
1623
  for( var p = zero_y ; p > 0 ; p = p-ystep){\
1624
   if(skip == 0 ){\
1625
    skip = parseInt(1.4*font_size/ystep);\
1626
    disp_cnt = cnt.toFixed(prec);\
1627
    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1628
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1629
   } else {\
15111 schaersvoo 1630
    skip--;\
1631
   };\
1632
   cnt = cnt + ymajor;\
1633
  };\
1634
 };\
1635
 ctx.stroke();\
1636
 ctx.restore();");
1637
}
1638
 
1639
if( legend_cnt != -1 ){
1640
fprintf(js_include_file,"ctx.save();\
1641
 ctx.globalAlpha = 1.0;\
15313 schaersvoo 1642
 ctx.font = \"bold \"+font_size+\"px Arial\";\
15111 schaersvoo 1643
 var y_offset = 2*font_size;\
1644
 var txt;var txt_size;\
1645
 var x_offset = xsize - 2*font_size;\
1646
 var l_length = legend0.length;\
1647
 if( typeof(legendcolors0) !== 'undefined' ){\
1648
  for(var p = 0 ; p < l_length ; p++){\
1649
    barcolor[p] = legendcolors0[p];\
1650
  };\
16844 bpr 1651
 } else {\
15111 schaersvoo 1652
  if( barcolor.length == 0 ){\
1653
   for(var p = 0 ; p < l_length ; p++){\
1654
    barcolor[p] = stroke_color;\
1655
   };\
1656
  };\
1657
 };\
1658
 for(var p = 0; p < l_length; p++){\
1659
  ctx.fillStyle = barcolor[p];\
1660
  txt = legend0[p];\
1661
  txt_size = ctx.measureText(txt).width;\
1662
  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
1663
  y_offset = parseInt(y_offset + 1.5*font_size);\
1664
 };\
1665
 ctx.restore();");
1666
}
1667
 
1668
if( barchart_cnt != 0 ){
1669
fprintf(js_include_file,"ctx.save();\
1670
 var num_barcharts = 0;\
1671
 var bar_name = eval('barchart_0');\
1672
 while( typeof(bar_name) !== 'undefined' ){\
1673
    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
1674
 };\
1675
 var bar_width = parseInt(0.8*x2step/(num_barcharts));\
1676
 for(var i=0 ; i< num_barcharts ; i++){\
1677
  bar_name = eval('barchart_'+i);\
1678
  var bar_x = new Array();\
1679
  var bar_y = new Array();\
1680
  var lb = bar_name.length;\
1681
  var idx = 0;\
1682
  var dx = parseInt(0.5*i*bar_width);\
1683
  for( var p = 0 ; p < lb ; p = p + 3 ){\
1684
   bar_x[idx] = x2px(bar_name[p]);\
1685
   bar_y[idx] = y2px(bar_name[p+1]);\
1686
   barcolor[idx] = bar_name[p+2];\
1687
   idx++;\
1688
  };\
1689
  ctx.globalAlpha = fill_opacity;\
1690
  for( var p = 0; p < idx ; p++ ){\
1691
   ctx.beginPath();\
1692
   ctx.strokeStyle = barcolor[p];\
1693
   ctx.fillStyle = barcolor[p];\
1694
   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
1695
   ctx.fill();\
1696
   ctx.stroke();\
1697
   ctx.closePath();\
1698
  };\
1699
 };\
1700
 ctx.restore();");
1701
}
1702
 
1703
if( linegraph_cnt != 0 ){
1704
fprintf(js_include_file,"ctx.save();\
1705
 ctx.globalAlpha = 1.0;\
1706
 var i = 0;\
1707
 var line_name = eval('linegraph_'+i);\
1708
 while ( typeof(line_name) !== 'undefined' ){\
1709
  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
1710
  ctx.lineWidth = parseInt(line_name[1]);\
1711
  if(line_name[2] == \"1\"){\
1712
   var d1 = parseInt(line_name[3]);\
1713
   var d2 = parseInt(line_name[4]);\
1714
   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
16844 bpr 1715
  } else {\
15111 schaersvoo 1716
  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
1717
  };\
1718
  var data_x = new Array();var data_y = new Array();\
1719
  var lb = line_name.length;var idx = 0;\
1720
  for( var p = 5 ; p < lb ; p = p + 2 ){\
1721
   data_x[idx] = x2px(line_name[p]);\
1722
   data_y[idx] = y2px(line_name[p+1]);\
1723
   idx++;\
1724
  };\
1725
  for( var p = 0; p < idx ; p++){\
1726
   ctx.beginPath();\
1727
   ctx.moveTo(data_x[p],data_y[p]);\
1728
   ctx.lineTo(data_x[p+1],data_y[p+1]);\
1729
   ctx.stroke();\
1730
   ctx.closePath();\
1731
  };\
1732
  i++;\
1733
  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
1734
 };\
1735
 ctx.restore();return;");
1736
}
1737
fprintf(js_include_file,"};");
1738
 
1739
break;
1740
 
1741
case DRAW_PIECHART:
1742
fprintf(js_include_file,"\n/* draw piecharts */\
1743
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1744
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
1745
 var obj;\
1746
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1747
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1748
 } else {\
15111 schaersvoo 1749
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1750
 };\
1751
 var center_text = use_offset || 0;\
1752
 var ld = data_color_list.length;\
1753
 var sum = 0;\
1754
 var idx = 0;\
1755
 var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
1756
 var colors = new Array();\
1757
 var data = new Array();\
1758
 for(var p = 0;p < ld; p = p + 2){\
1759
  data[idx] = parseFloat(data_color_list[p]);\
1760
  sum = sum + data[idx];\
1761
  colors[idx] = data_color_list[p+1];\
1762
  idx++;\
1763
 };\
1764
 if( use_filled > 1 ){\
1765
  var i = 2;\
1766
  for(var p = 0 ;  p < idx ; p++){\
1767
   if(i > 5 ){ i = 2; };\
1768
   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
1769
  };\
1770
 };\
1771
 var ctx = obj.getContext(\"2d\");\
1772
 ctx.save();\
1773
 var angle;\
1774
 var angle_end = 0;\
1775
 var offset = Math.PI / 2;\
1776
 ctx.globalAlpha = fill_opacity;\
1777
 var angles = [];\
1778
 for(var p=0; p < idx; p++){\
1779
  ctx.beginPath();\
1780
  ctx.moveTo(x_center,y_center);\
1781
  angle = Math.PI * (2 * data[p] / sum);\
1782
  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
1783
  ctx.lineTo(x_center, y_center);\
1784
  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
1785
  ctx.fill();\
1786
  ctx.closePath();\
1787
  angles.push(angle_end + angle - offset);\
1788
  angle_end  = angle_end + angle;\
1789
 };\
1790
 if(typeof(legend0) !== 'undefined'){\
1791
  var legenda = eval(\"legend\"+legend_cnt);\
1792
  ctx.globalAlpha = 1.0;\
1793
  ctx.font = font_family;\
1794
  var y_offset = font_size;\
1795
  var x_offset = 0;\
1796
  var txt;var txt_size;\
1797
  for(var p = 0; p < idx; p++){\
1798
   ctx.fillStyle = colors[p];\
1799
   txt = legenda[p];\
1800
   txt_size = ctx.measureText(txt).width + 2;\
1801
   if(center_text == 4){\
1802
    ctx.save();\
1803
    ctx.translate(x_center, y_center);\
1804
    ctx.rotate(angles[p]);\
1805
    ctx.fillText(txt,radius-txt_size,0);\
1806
    ctx.restore();\
16844 bpr 1807
   } else {\
15111 schaersvoo 1808
    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
1809
    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
1810
    y_offset = parseInt(y_offset + 1.5*font_size);\
1811
   };\
1812
  };\
1813
 };\
1814
 ctx.restore();\
1815
};",canvas_root_id,canvas_root_id,canvas_root_id);
1816
break;
1817
 
1818
case DRAW_JSBOXPLOT:
1819
fprintf(js_include_file,"\n/* draw jsboxplots */\
1820
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1821
function statistics(data){\
1822
 var len = data.length;\
1823
 var min = 10000000;\
1824
 var max = -10000000;\
1825
 var sum = 0;var d;\
1826
 for(var i=0;i<len;i++){\
1827
  d = data[i];\
1828
  if(d < min){min = d;}else{if(d > max){max = d;};};\
1829
  sum+= parseFloat(data[i]);\
1830
 };\
1831
 var mean = parseFloat(sum/len);\
1832
 var variance = 0;\
1833
 for(var i=0;i<len;i++){\
1834
  d = data[i];\
1835
  variance += (d - mean)*(d - mean);\
1836
 };\
1837
 variance = parseFloat(variance / len);\
1838
 var std = Math.sqrt(variance);\
1839
 data.sort(function(a,b){return a - b;});\
1840
 var median;var Q1;var Q3;\
1841
 var half = Math.floor(0.5*len);\
1842
 var q1 = Math.floor(0.25*len);\
1843
 var q3 = Math.floor(0.75*len);\
1844
 var half = Math.floor(0.5*len);\
1845
 if(len %%2 == 1){\
1846
  median = data[half];\
1847
  Q1 = data[q1];\
1848
  Q3 = data[q3];\
16844 bpr 1849
 } else {\
15111 schaersvoo 1850
  median = (data[half - 1] + data[half] )/2;\
1851
  Q1 = (data[q1 - 1] + data[q1] )/2;\
1852
  Q3 = (data[q3 - 1] + data[q3] )/2;\
1853
 };\
1854
 return [min,Q1,median,Q3,max];\
1855
};");
1856
break;
1857
 
1858
case DRAW_BOXPLOT:
1859
fprintf(js_include_file,"\n/* draw boxplots */\
1860
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1861
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){\
1862
 var obj;\
1863
 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);};\
1864
 var ctx = obj.getContext(\"2d\");\
1865
 ctx.clearRect(0,0,xsize,ysize);\
1866
 ctx.save();\
1867
 ctx.lineWidth = line_width;\
1868
 ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1869
 var colors = new Array(2);\
1870
 colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
1871
 colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1872
 if( use_filled > 1 ){\
1873
   var pat = create_Pattern(0,0,3,colors[0]);\
1874
   all_fill_patterns[0] = pat;\
1875
   pat = create_Pattern(0,0,4,colors[1]);\
1876
   all_fill_patterns[1] = pat;\
1877
 };\
1878
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
1879
 var hh = 0.25*hw;\
1880
 switch(boxplot_source){\
1881
  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
1882
  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
1883
  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
1884
  default: break;\
1885
 };\
1886
 var min,Q1,median,Q3,max;\
1887
 if(xy == 1 ){\
1888
  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
1889
  hh = Math.abs(y2px(hh) - y2px(ystart));\
1890
  hw = Math.abs(y2px(hw) - y2px(ystart));\
1891
  cxy = y2px(cxy);\
1892
  ctx.beginPath();\
1893
  ctx.moveTo(min,cxy);\
1894
  ctx.lineTo(Q1,cxy);\
1895
  ctx.moveTo(Q3,cxy);\
1896
  ctx.lineTo(max,cxy);\
1897
  ctx.moveTo(min,cxy+hh);\
1898
  ctx.lineTo(min,cxy-hh);\
1899
  ctx.moveTo(max,cxy+hh);\
1900
  ctx.lineTo(max,cxy-hh);\
1901
  ctx.closePath();\
1902
  ctx.stroke();\
1903
  ctx.beginPath();\
1904
  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
1905
  ctx.closePath();\
1906
  if( use_filled != 0 ){\
1907
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1908
   ctx.fill();\
1909
  };\
1910
  ctx.stroke();\
1911
  ctx.beginPath();\
1912
  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
1913
  ctx.closePath();\
1914
  if( use_filled != 0 ){\
1915
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1916
   ctx.fill();\
1917
  };\
1918
  ctx.stroke();\
1919
 }else{\
1920
  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
1921
  hh = Math.abs(x2px(hh) - x2px(xstart));\
1922
  hw = Math.abs(x2px(hw) - x2px(xstart));\
1923
  cxy = x2px(cxy);\
1924
  ctx.beginPath();\
1925
  ctx.moveTo(cxy,min);\
1926
  ctx.lineTo(cxy,Q1);\
1927
  ctx.moveTo(cxy,Q3);\
1928
  ctx.lineTo(cxy,max);\
1929
  ctx.moveTo(cxy + hh,min);\
1930
  ctx.lineTo(cxy - hh,min);\
1931
  ctx.moveTo(cxy + hh,max);\
1932
  ctx.lineTo(cxy - hh,max);\
1933
  ctx.closePath;\
1934
  ctx.stroke();\
1935
  ctx.beginPath();\
1936
  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
1937
  ctx.closePath();\
1938
  if( use_filled != 0 ){\
1939
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1940
   ctx.fill();\
1941
  };\
1942
  ctx.stroke();\
1943
  ctx.beginPath();\
1944
  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
1945
  ctx.closePath();\
1946
  if( use_filled != 0 ){\
1947
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1948
   ctx.fill();\
1949
  };\
1950
  ctx.stroke();\
1951
 };\
1952
 ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
1953
break;
1954
 
1955
case DRAW_CENTERSTRING:
1956
fprintf(js_include_file,"\n/* draw centerstring */\
1957
var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
1958
 var obj;\
1959
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1960
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1961
 } else {\
15111 schaersvoo 1962
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1963
 };\
1964
 var ctx = obj.getContext(\"2d\");\
1965
 ctx.save();\
1966
 ctx.clearRect(0,0,xsize,ysize);\
1967
 ctx.font = font_family;\
1968
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1969
 var stringwidth = ctx.measureText(text).width;\
1970
 var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
1971
 ctx.fillText(text,x,y2px(y));\
1972
 ctx.restore();\
1973
return;\
1974
};",canvas_root_id,canvas_root_id,canvas_root_id);
1975
break;
1976
 
1977
case DRAW_TEXTS:
1978
fprintf(js_include_file,"\n/* draw text */\
1979
var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
1980
 var obj;\
1981
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1982
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1983
 } else {\
15111 schaersvoo 1984
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1985
 };\
1986
 var ctx = obj.getContext(\"2d\");\
1987
 if( font_family != 'null' ){\
1988
  ctx.font = font_family;\
16844 bpr 1989
 } else {\
15313 schaersvoo 1990
  ctx.font = font_size+'px Arial';\
15111 schaersvoo 1991
 };\
1992
 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;};};\
1993
 if(angle2 == 0 && angle != 0){\
1994
  ctx.save();\
1995
  if(use_rotate == 1 ){\
1996
  ctx.rotate(angle*Math.PI/180);};\
1997
  ctx.restore();\
1998
 };\
1999
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2000
 if(angle2 != 0){\
2001
  ctx.save();\
2002
  ctx.translate(x,y);\
2003
  ctx.rotate((360-angle2)*(Math.PI / 180));\
2004
  ctx.fillText(text,0,0);\
2005
  ctx.restore();\
16844 bpr 2006
 } else {\
15111 schaersvoo 2007
  ctx.fillText(text,x,y);\
2008
 };\
2009
 return;\
2010
};",canvas_root_id,canvas_root_id,canvas_root_id);
2011
break;
2012
 
2013
case DRAW_INPUTS:
2014
/* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
2015
fprintf(js_include_file,"\n/* draw static input fields */\
2016
if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
2017
var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
2018
var input = document.createElement(\"input\");\
2019
input.setAttribute(\"id\",\"canvas_input\"+num);\
2020
input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
2021
if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
2022
input.setAttribute(\"size\",size);\
2023
input.setAttribute(\"value\",value);\
2024
input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
2025
if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
2026
canvas_div.appendChild(input);\
2027
if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
2028
input_cnt++;\
2029
};\
2030
function center_input(id,x,y,css_class){\
2031
 var inp = document.getElementById(id);\
2032
 var pos = inp.getBoundingClientRect();\
2033
 var center_x = parseInt(x - 0.5*(pos.width));\
2034
 var center_y = parseInt(y - 0.5*(pos.height));\
2035
 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;\");}\
2036
 catch(e){console.log('error :'+e);return;};\
2037
};");
2038
break;
2039
 
2040
case DRAW_TEXTAREAS:
2041
fprintf(js_include_file,"\n/* draw text area inputfields */\
2042
var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
2043
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
2044
var textarea = document.createElement(\"textarea\");\
2045
textarea.setAttribute(\"id\",\"canvas_input\"+num);\
2046
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
2047
textarea.setAttribute(\"cols\",cols);\
2048
textarea.setAttribute(\"rows\",rows);\
2049
textarea.value = value;\
2050
if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
2051
canvas_div.appendChild(textarea);};");
2052
break;
2053
 
2054
case DRAW_PIXELS:
2055
fprintf(js_include_file,"\n/* draw pixel */\
2056
var draw_setpixel = function(x,y,color,opacity,pixelsize){\
2057
 var idx = 2000+Math.ceil(1000*(Math.random()));\
2058
 var canvas = create_canvas%d(idx,xsize,ysize);\
2059
 var d = 0.5*pixelsize;\
2060
 var ctx = canvas.getContext(\"2d\");\
2061
 if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
2062
 ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
2063
 ctx.clearRect(0,0,xsize,ysize);\
2064
 for(var p=0; p<x.length;p++){\
2065
  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
2066
 };\
2067
 ctx.fill();ctx.stroke();\
2068
};",canvas_root_id);
2069
break;
2070
 
2071
case DRAW_CLOCK:
2072
fprintf(js_include_file,"\n/* command clock */\
2073
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
2074
var clock_ctx = clock_canvas.getContext(\"2d\");\
2075
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
2076
 clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
2077
 clock_ctx.save();\
2078
 clock_ctx.globalAlpha = clock_bg_opacity;\
2079
 this.type = type || 0;\
2080
 this.interaction = interaction || 0;\
2081
 this.H = H;\
2082
 this.M = M;\
2083
 this.S = S;\
2084
 this.xc = xc || xsize/2;\
2085
 this.yc = yc || ysize/2;\
2086
 this.radius = radius || xsize/4;\
2087
 var font_size = parseInt(0.2*this.radius);\
2088
 this.H_color = h_color || \"black\";\
2089
 this.M_color = m_color || \"black\";\
2090
 this.S_color = s_color || \"black\";\
2091
 this.fg_color = fg_color || \"black\";\
2092
 this.bg_color = bg_color || \"white\";\
2093
 clock_ctx.translate(this.xc,this.yc);\
2094
 clock_ctx.beginPath();\
2095
 clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
2096
 clock_ctx.fillStyle = this.bg_color;\
2097
 clock_ctx.fill();\
2098
 clock_ctx.closePath();\
2099
 clock_ctx.beginPath();\
2100
 clock_ctx.font = font_size+\"px Arial\";\
2101
 clock_ctx.fillStyle = this.fg_color;\
2102
 clock_ctx.textAlign = \"center\";\
2103
 clock_ctx.textBaseline = 'middle';\
2104
 var angle;var x1,y1,x2,y2;\
2105
 var angle_cos;var angle_sin;\
2106
 clock_ctx.globalAlpha = clock_fg_opacity;\
2107
 switch(type){\
2108
 case 0:clock_ctx.beginPath();\
2109
 for(var p = 1; p <= 12 ; p++){\
2110
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2111
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2112
  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2113
  clock_ctx.moveTo(x1,y1);\
2114
  clock_ctx.lineTo(x2,y2);\
2115
 };\
2116
 for(var p = 1; p <= 60 ; p++){\
2117
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2118
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2119
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2120
  clock_ctx.moveTo(x1,y1);\
2121
  clock_ctx.lineTo(x2,y2);\
2122
 };\
2123
 clock_ctx.closePath();\
2124
 clock_ctx.stroke();\
2125
 break;\
2126
 case 1:\
2127
 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;\
2128
 case 2:\
2129
 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);};\
2130
 clock_ctx.beginPath();\
2131
 for(var p = 1; p <= 12 ; p++){\
2132
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2133
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2134
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2135
  clock_ctx.moveTo(x1,y1);\
2136
  clock_ctx.lineTo(x2,y2);\
2137
 };\
2138
 for(var p = 1; p <= 60 ; p++){\
2139
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2140
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2141
  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2142
  clock_ctx.moveTo(x1,y1);\
2143
  clock_ctx.lineTo(x2,y2);\
2144
 };\
2145
 clock_ctx.closePath();\
2146
 clock_ctx.stroke();\
2147
 break;\
2148
 };\
2149
 angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
2150
 clock_ctx.rotate(angle);\
2151
 clock_ctx.beginPath();\
2152
 clock_ctx.moveTo(-3, -2);\
2153
 clock_ctx.lineTo(-3, 2);\
2154
 clock_ctx.lineTo(this.radius * 0.6, 1);\
2155
 clock_ctx.lineTo(this.radius  * 0.6, -1);\
2156
 clock_ctx.fillStyle = this.H_color;\
2157
 clock_ctx.fill();\
2158
 clock_ctx.rotate(-angle);\
2159
 angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
2160
 clock_ctx.rotate(angle);\
2161
 clock_ctx.beginPath();\
2162
 clock_ctx.moveTo(-3, -2);\
2163
 clock_ctx.lineTo(-3, 2);\
2164
 clock_ctx.lineTo(this.radius  * 0.8, 1);\
2165
 clock_ctx.lineTo(this.radius  * 0.8, -1);\
2166
 clock_ctx.fillStyle = this.M_color;\
2167
 clock_ctx.fill();\
2168
 clock_ctx.rotate(-angle);\
2169
 angle = (this.S - 15) * 2 * Math.PI / 60;\
2170
 clock_ctx.rotate(angle);\
2171
 clock_ctx.beginPath();\
2172
 clock_ctx.moveTo(0,0);\
2173
 clock_ctx.lineTo(this.radius  * 0.9, 1);\
2174
 clock_ctx.lineTo(this.radius  * 0.9, -1);\
2175
 clock_ctx.strokeStyle = this.S_color;\
2176
 clock_ctx.stroke();\
2177
 clock_ctx.restore();\
2178
};",canvas_root_id,CLOCK_CANVAS);
2179
break;
2180
 
2181
case DRAW_LATTICE:
2182
fprintf(js_include_file,"\n/* draw lattice */\
2183
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){\
2184
 var obj;\
2185
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2186
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2187
 } else {\
15111 schaersvoo 2188
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2189
 };\
2190
 var ctx = obj.getContext(\"2d\");\
2191
 ctx.save();\
2192
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
2193
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
2194
 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;};\
2195
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2196
 var radius = line_width;\
2197
 var x = 0;\
2198
 var y = 0;\
2199
 var x_step_px = xsize/(xmax-xmin);\
2200
 var y_step_px = ysize/(ymax-ymin);\
2201
 var xv1 = dx1*x_step_px;\
2202
 var yv1 = dy1*y_step_px;\
2203
 var xv2 = dx2*x_step_px;\
2204
 var yv2 = dy2*y_step_px;\
2205
 for(var p = 0; p < n1 ;p++){\
2206
  x = p*xv1 + x0;\
2207
  y = p*yv1 + y0;\
2208
  for(var c = 0; c < n2 ; c++){\
2209
   ctx.beginPath();\
2210
   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
2211
   ctx.fill();\
2212
   ctx.stroke();\
2213
   ctx.closePath();\
2214
  };\
2215
 };\
2216
 ctx.restore();\
2217
 return;\
2218
};",canvas_root_id,canvas_root_id,canvas_root_id);
2219
break;
2220
 
2221
case DRAW_XYLOGSCALE:
2222
fprintf(js_include_file,"\n/* draw xylogscale */\
2223
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){\
2224
 var obj;\
2225
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2226
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2227
 } else {\
15111 schaersvoo 2228
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2229
 };\
2230
 var ctx = obj.getContext(\"2d\");\
2231
 ctx.clearRect(0,0,xsize,ysize);\
2232
 ctx.save();\
2233
 var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
2234
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2235
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2236
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2237
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2238
 if(use_axis_numbering != -1){\
2239
  ctx.font = font_family;\
2240
  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
2241
  ymarge = parseInt(1.5*font_size);\
2242
  ctx.save();\
2243
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2244
  ctx.rect(0,0,xmarge,ysize);\
2245
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2246
  ctx.fill();\
2247
  ctx.restore();\
2248
 }else{xmarge = 0;ymarge = 0;};\
2249
 if( typeof(xaxislabel) !== 'undefined' ){\
2250
  ctx.save();\
15313 schaersvoo 2251
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2252
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2253
  corr =  ctx.measureText(xaxislabel).width;\
2254
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2255
  ctx.restore();\
2256
 };\
2257
 if( typeof(yaxislabel) !== 'undefined' ){\
2258
  ctx.save();\
15313 schaersvoo 2259
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2260
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2261
  corr = ctx.measureText(yaxislabel).width;\
2262
  ctx.translate(xmarge+font_size,corr+font_size);\
2263
  ctx.rotate(-0.5*Math.PI);\
2264
  ctx.fillText(yaxislabel,0,0);\
2265
  ctx.restore();\
2266
 };\
2267
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2268
 ctx.lineWidth = line_width;\
2269
 for(var p = x_min; p <= x_max ; p++){\
2270
  num = Math.pow(xlogbase,p);\
2271
  for(var i = 1 ; i < xlogbase ; i++){\
2272
   x_e = x2px(i*num);\
2273
   if( i == 1 ){\
2274
    ctx.lineWidth = line_width;\
2275
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2276
    if( use_axis_numbering != -1 && p > x_min){\
2277
      xtxt = xlogbase+'^'+p.toFixed(0);\
2278
      corr = 0.5*(ctx.measureText(xtxt).width);\
2279
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2280
    };\
2281
   }else{\
2282
    ctx.lineWidth = 0.2*line_width;\
2283
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2284
   };\
2285
   if( x_e >= xmarge ){\
2286
    ctx.beginPath();\
2287
    ctx.moveTo(x_e,0);\
2288
    ctx.lineTo(x_e,ysize - ymarge);\
2289
    ctx.stroke();\
2290
    ctx.closePath();\
2291
   };\
2292
  };\
2293
 };\
2294
 for(var p = y_min; p <= y_max ; p++){\
2295
  num = Math.pow(ylogbase,p);\
2296
  for(var i = 1 ; i < ylogbase ; i++){\
2297
   y_e = y2px(i*num);\
2298
   if( i == 1 ){\
2299
    ctx.lineWidth = line_width;\
2300
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2301
    if( use_axis_numbering != -1 && p > y_min){\
2302
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2303
    };\
2304
   }else{\
2305
    ctx.lineWidth = 0.2*line_width;\
2306
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2307
   };\
2308
   ctx.beginPath();\
2309
   ctx.moveTo(xmarge,y_e);\
2310
   ctx.lineTo(xsize,y_e);\
2311
   ctx.stroke();\
2312
   ctx.closePath();\
2313
  };\
2314
 };\
2315
 ctx.restore();\
2316
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2317
break;
2318
 
2319
case DRAW_XLOGSCALE:
2320
fprintf(js_include_file,"\n/* draw xlogscale */\
2321
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){\
2322
 var obj;\
2323
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2324
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2325
 } else {\
15111 schaersvoo 2326
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2327
 };\
2328
 var ctx = obj.getContext(\"2d\");\
2329
 ctx.clearRect(0,0,xsize,ysize);\
2330
 ctx.save();\
2331
 ctx.lineWidth = line_width;\
2332
 var prec = Math.log(precision)/Math.log(10);\
2333
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2334
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2335
 var y_min = 0;var y_max = ysize;var x_e;var corr;\
2336
 var xtxt;var ytxt;var num;var xmarge;var ymarge;\
2337
 if(use_axis_numbering != -1){\
2338
  ctx.font = font_family;\
2339
  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
2340
  ymarge = parseInt(1.5*font_size);\
2341
  ctx.save();\
2342
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2343
  ctx.rect(0,0,xmarge,ysize);\
2344
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2345
  ctx.fill();\
2346
  ctx.restore();\
2347
 }else{xmarge = 0;ymarge = 0;};\
2348
 if( typeof(xaxislabel) !== 'undefined' ){\
2349
  ctx.save();\
15313 schaersvoo 2350
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2351
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2352
  corr =  ctx.measureText(xaxislabel).width;\
2353
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2354
  ctx.restore();\
2355
 };\
2356
 if( typeof(yaxislabel) !== 'undefined' ){\
2357
  ctx.save();\
15313 schaersvoo 2358
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2359
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2360
  corr = ctx.measureText(yaxislabel).width;\
2361
  ctx.translate(xmarge+font_size,corr+font_size);\
2362
  ctx.rotate(-0.5*Math.PI);\
2363
  ctx.fillText(yaxislabel,0,0);\
2364
  ctx.restore();\
2365
 };\
2366
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2367
 ctx.lineWidth = line_width;\
2368
 for(var p = x_min; p <= x_max ; p++){\
2369
  num = Math.pow(xlogbase,p);\
2370
  for(var i = 1 ; i < xlogbase ; i++){\
2371
   x_e = x2px(i*num);\
2372
   if( i == 1 ){\
2373
     ctx.lineWidth = line_width;\
2374
     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2375
    if( use_axis_numbering != -1 && p > x_min ){\
2376
      xtxt = xlogbase+'^'+p.toFixed(0);\
2377
      corr = 0.5*(ctx.measureText(xtxt).width);\
2378
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2379
    };\
2380
   }else{\
2381
    ctx.lineWidth = 0.2*line_width;\
2382
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2383
   };\
2384
   if( x_e >= xmarge ){\
2385
    ctx.beginPath();\
2386
    ctx.moveTo(x_e,0);\
2387
    ctx.lineTo(x_e,ysize - ymarge);\
2388
    ctx.stroke();\
2389
    ctx.closePath();\
2390
   };\
2391
  };\
2392
 };\
2393
 var stepy = Math.abs(y2px(ymajor) - y2px(0));\
2394
 var minor_step = stepy / yminor;\
2395
 for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
2396
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2397
  ctx.lineWidth = line_width;\
2398
  ctx.beginPath();\
2399
  ctx.moveTo(xmarge,y);\
2400
  ctx.lineTo(xsize,y);\
2401
  ctx.stroke();\
2402
  ctx.closePath();\
2403
  if( use_axis_numbering != -1){\
2404
   ytxt = (px2y(y)).toFixed(prec);\
2405
   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
2406
  };\
2407
  for(var dy = 1 ; dy < yminor ; dy++){\
2408
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2409
   ctx.lineWidth = 0.2*line_width;\
2410
   ctx.beginPath();\
2411
   ctx.moveTo(xmarge,y+dy*minor_step);\
2412
   ctx.lineTo(xsize,y+dy*minor_step);\
2413
   ctx.stroke();\
2414
   ctx.closePath();\
2415
  };\
2416
 };\
2417
 ctx.restore();\
2418
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2419
break;
2420
 
2421
case DRAW_YLOGSCALE:
2422
fprintf(js_include_file,"\n/* draw ylogscale */\
2423
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){\
2424
 var obj;\
2425
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2426
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2427
 } else {\
15111 schaersvoo 2428
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2429
 };\
2430
 var ctx = obj.getContext(\"2d\");\
2431
 ctx.clearRect(0,0,xsize,ysize);\
2432
 ctx.save();\
2433
 ctx.lineWidth = line_width;\
2434
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2435
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2436
 var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
2437
 if(use_axis_numbering != -1){\
2438
  ctx.font = font_family;\
2439
  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
2440
  ymarge = 2*font_size;\
2441
  ctx.save();\
2442
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2443
  ctx.rect(0,0,xmarge,ysize);\
2444
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2445
  ctx.fill();\
2446
  ctx.restore();\
2447
 }else{xmarge = 0;ymarge = 0;};\
2448
 if( typeof(xaxislabel) !== 'undefined' ){\
2449
  ctx.save();\
15313 schaersvoo 2450
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2451
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2452
  corr =  ctx.measureText(xaxislabel).width;\
2453
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2454
  ctx.restore();\
2455
 };\
2456
 if( typeof(yaxislabel) !== 'undefined' ){\
2457
  ctx.save();\
15313 schaersvoo 2458
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2459
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2460
  corr = ctx.measureText(yaxislabel).width;\
2461
  ctx.translate(xmarge+font_size,corr+font_size);\
2462
  ctx.rotate(-0.5*Math.PI);\
2463
  ctx.fillText(yaxislabel,0,0);\
2464
  ctx.restore();\
2465
 };\
2466
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2467
 ctx.lineWidth = line_width;\
2468
 for(var p = y_min; p <= y_max ; p++){\
2469
  num = Math.pow(ylogbase,p);\
2470
  for(var i = 1 ; i < ylogbase ; i++){\
2471
   y_e = y2px(i*num);\
2472
   if( i == 1 ){\
2473
    ctx.lineWidth = line_width;\
2474
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2475
    if( use_axis_numbering != -1 && p > y_min){\
2476
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2477
    };\
2478
   }else{\
2479
    ctx.lineWidth = 0.2*line_width;\
2480
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2481
   };\
2482
   ctx.beginPath();\
2483
   ctx.moveTo(xmarge,y_e);\
2484
   ctx.lineTo(xsize,y_e);\
2485
   ctx.stroke();\
2486
   ctx.closePath();\
2487
  };\
2488
 };\
2489
 var stepx = Math.abs(x2px(xmajor) - x2px(0));\
2490
 var minor_step = stepx / xminor;\
2491
 var prec = Math.log(precision)/Math.log(10);\
2492
 var xtxt;var corr;var flip = 0;\
2493
 for(var x = stepx ; x < xsize ; x = x + stepx){\
2494
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2495
  ctx.lineWidth = line_width;\
2496
  ctx.beginPath();\
2497
  ctx.moveTo(x,ysize-ymarge);\
2498
  ctx.lineTo(x,0);\
2499
  ctx.stroke();\
2500
  ctx.closePath();\
2501
  if( use_axis_numbering != -1){\
2502
   xtxt = (px2x(x)).toFixed(prec);\
2503
   corr = 0.5*(ctx.measureText(xtxt).width);\
2504
   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
2505
   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
2506
  };\
2507
  for(var dx = 1 ; dx < xminor ; dx++){\
2508
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2509
   ctx.lineWidth = 0.2*line_width;\
2510
   ctx.beginPath();\
2511
   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
2512
   ctx.lineTo(x+dx*minor_step,0);\
2513
   ctx.stroke();\
2514
   ctx.closePath();\
2515
  };\
2516
 };\
2517
 ctx.restore();\
2518
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2519
break;
2520
 
2521
case ADD_USER_INPUTS:
2522
fprintf(js_include_file,"\n/* add_input_xy */\
2523
function add_input_xy(){\
2524
if( wims_status == \"done\" ){return;};\
2525
var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
2526
var input_xy_div = document.createElement('div');\
2527
input_xy_div.id = \"input_xy_div\";\
2528
tooltip_div.appendChild(input_xy_div);",canvas_root_id);
2529
 
2530
if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
2531
type=1;
2532
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x'/> : <input type='text' size='2' value='' id='userinput_y'/>)<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2533
}else{
2534
if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
2535
type=2;
2536
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>M:&nbsp;(<input type='text' size='2' value='' id='userinput_x'/> : <input type='text' size='2' value='' id='userinput_y'/>) &nbsp;&nbsp;R:&nbsp;<input type='text' size='2' value='' id='userinput_r'/><input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2537
}else{
2538
type=3;
2539
if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
2540
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x1'/> : <input type='text' size='2' value='' id='userinput_y1'/>) &minus;&minus;&minus; (<input type='text' size='2' value='' id='userinput_x2'/> : <input type='text' size='2' value='' id='userinput_y2'/>)<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2541
}else{
2542
type=4;
2543
if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
2544
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>&#8420;&nbsp;&nbsp;<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/><br/>(<input type='text' size='2' value='' id='userinput_x1'/> : <input type='text' size='2' value='' id='userinput_y1'/>)<br/>(<input type='text' size='2' value='' id='userinput_x2'/> : <input type='text' size='2' value='' id='userinput_y2'/>)<br/>(<input type='text' size='2' value='' id='userinput_x3'/> : <input type='text' size='2' value='' id='userinput_y3'/>)</span> \";",css_class);
2545
}else{
2546
type=5;
2547
if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
2548
fprintf(js_include_file,"input_xy_div.innerHTML=\"<br /><span class='%s'>(<input type='text' size='2' value='' id='userinput_x'/>:<input type='text' size='2' value='' id='userinput_y'/>)&nbsp;<input id='update_button' type='button' value='OK' onclick='' style='color:red;background-color:lightblue;'/><input id='delete_button' type='button' value='NOK' onclick='' style='color:blue;background-color:red;'/></span> \";",css_class);
2549
}else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
2550
}}}}}
2551
 
2552
fprintf(js_include_file,"\
2553
var update_button = document.getElementById(\"update_button\");\
2554
var delete_button = document.getElementById(\"delete_button\");\
2555
update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
2556
delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
2557
};add_input_xy();");
2558
 
2559
switch(type){
2560
 case 1:
2561
fprintf(js_include_file,"\n/* add_input_xy */\
2562
function update_me(){\
15529 schaersvoo 2563
 var x = safe_eval(document.getElementById('userinput_x').value);\
2564
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2565
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2566
 return;\
2567
};");break;
2568
 case 2:
2569
fprintf(js_include_file,"\n/* add_input_xy */\
2570
function update_me(){\
15529 schaersvoo 2571
 var x = safe_eval(document.getElementById('userinput_x').value);\
2572
 var y = safe_eval(document.getElementById('userinput_y').value);\
2573
 var r = safe_eval(document.getElementById('userinput_r').value);\
15111 schaersvoo 2574
 r = scale_x_radius(r);\
2575
 userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2576
 return;\
2577
};");break;
2578
 case 3:
2579
fprintf(js_include_file,"\n/* add_input_xy */\
2580
function update_me(){\
2581
 var x,y;\
2582
 for(var p=1; p<3;p++){\
15529 schaersvoo 2583
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2584
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2585
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2586
 };\
2587
 return;\
2588
};");
2589
 break;
2590
 case 4:
2591
fprintf(js_include_file,"\n/* add_input_xy */\
2592
function update_me(){\
2593
 var x,y;\
2594
 for(var p=1; p<4;p++){\
15529 schaersvoo 2595
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2596
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2597
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2598
 };\
2599
 return;\
2600
};");
2601
 break;
2602
 case 5:
2603
 /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
2604
fprintf(js_include_file,"\n/* add_input_xy */\
2605
function update_me(){\
15529 schaersvoo 2606
 var x = safe_eval(document.getElementById('userinput_x').value);\
2607
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2608
 var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
2609
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
2610
 return;\
2611
};");
2612
 break;
2613
 default: canvas_error("hmmm, I've no idea...");break;
2614
}
2615
 
2616
break;
2617
 
2618
default:break;
2619
   }
2620
  }
2621
 }
2622
  return;
2623
}