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Rev Author Line No. Line
15111 schaersvoo 1
#include "canvasdraw.h"
2
/*
3
collection of javascript utilities (with no configurable parameters)
4
*/
5
void add_javascript_function(){
16643 schaersvoo 6
#ifdef KATEX_INSTALLED
16642 schaersvoo 7
char *mathjax="centered(xml_div,obj);";
8
#else
9
char *mathjax="setTimeout(function(){centered(xml_div,obj)},100);";
10
#endif
15111 schaersvoo 11
int i;
12
int type;
13
for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
14
/*
17351 bpr 15
fprintf(stdout,"checking js_function[%d] = %d<br>",i,js_function[i]);
15111 schaersvoo 16
*/
18553 bpr 17
  if( js_function[i] == 1){
15111 schaersvoo 18
    switch(i){
18553 bpr 19
      case JS_ARROWHEAD:
15690 schaersvoo 20
/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */
18553 bpr 21
        fprintf(js_include_file,"\n/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */\
15690 schaersvoo 22
function draw_arrowhead(x,y,x0,y0,ctx){\
23
var angle = Math.atan2(x - x0,y - y0) + Math.PI;\
24
var pie = Math.PI/6;\
25
ctx.save();\
26
ctx.fillStyle=ctx.strokeStyle;\
27
ctx.beginPath();\
28
ctx.moveTo(x,y);\
29
ctx.moveTo(x - (arrow_head * Math.sin(angle - pie)),y - (arrow_head * Math.cos(angle - pie)));\
30
ctx.lineTo(x,y);\
31
ctx.lineTo(x - (arrow_head * Math.sin(angle + pie)),y - (arrow_head * Math.cos(angle + pie)));\
32
ctx.closePath();\
33
ctx.stroke();\
34
ctx.fill();\
35
ctx.restore();\
36
};");
18553 bpr 37
        break;
38
      case JS_LOAD_IMAGE:
39
        fprintf(js_include_file,"\n/* get_image_from_url */\
15111 schaersvoo 40
var image_cnt = 0;\
41
if( typeof(image_patterns) !== 'object'){var image_patterns = [];};\
42
var get_image_from_url = function(url){\
43
 var idx = Math.ceil(1000*(Math.random()));\
44
 var canvas = create_canvas%d(idx,xsize,ysize);\
45
 canvas.style.visibility = 'hidden';\
46
 var ctx = canvas.getContext(\"2d\");\
47
 var img = new Image();\
48
 img.src = url;\
49
 img.onload = function(){\
50
  var pat = ctx.createPattern(img,\"repeat\");\
51
  image_patterns.push(pat);\
52
 };\
53
};",canvas_root_id);
18553 bpr 54
        break;
55
      case JS_SAFE_EVAL:
15111 schaersvoo 56
/* to avoid easy js-code injection...but is it a real problem ? */
18553 bpr 57
        fprintf(js_include_file," \n/* add safe eval function */function safe_eval(exp){\
15111 schaersvoo 58
 exp = exp.replace(/pi/g,'3.14159');\
59
 if(exp.indexOf('^') != -1){\
60
  exp = exp.replace(/[a-zA-Z]/g,' ');\
61
  exp = exp.replace(/\\*10\\^-/g,'e-');\
62
  exp = exp.replace(/\\*10\\^/g,'e+');\
63
  exp = exp.replace(/10\\^-/g,'1e-');exp = exp.replace(/10\\^/g,'1e+');\
64
  exp = eval(exp);\
65
  if(isNaN(exp)){alert(\"invalid input\\ntry just a real number \\ne.g. no calculations...\");return null;}\
66
  return exp;\
67
 };\
68
 var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;\
69
 var valid = true;\
70
 exp = exp.replace(reg,function($0){\
71
  if(Math.hasOwnProperty($0)){\
72
   return \"Math.\"+$0;\
16844 bpr 73
  } else {\
15111 schaersvoo 74
   valid = false;\
75
  }\
76
 }\
77
 );\
78
 if( !valid ){\
79
  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
16844 bpr 80
 } else {\
15111 schaersvoo 81
  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
82
 };\
83
 return exp;\
84
};");
18553 bpr 85
        break;
86
      case JS_RAWMATH:
87
        fprintf(js_include_file,"\n/* add_rawmath() */\
15111 schaersvoo 88
function rawmath(i){\
89
 i=i.toLowerCase();\
90
 i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
91
 if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
92
 if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
93
 i=i.replace(/\\*\\*/g,\"*\");\
94
 if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
95
 var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
96
 var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
97
 var cntl = 0;var cntr = 0;\
98
 var len = i.length;\
99
 for( var p = 0;p < len; p++){\
100
  if(i.charAt(p) == '('){cntl++;}\
101
  if(i.charAt(p) == ')'){cntr++;}\
102
 };\
103
 if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
104
 for(var p = 0; p < 12 ; p++){\
105
  for(var d = 0; d < 12 ; d++){\
106
   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
107
    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
108
   };\
109
   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
110
    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
111
   };\
112
  };\
113
 };\
114
 if(i.indexOf(\"(\")!=-1){\
115
  for(var p = 0;p < 12; p++){\
116
   if(i.indexOf(cons[p]+\"(\")!=-1){\
117
    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
118
   };\
119
   if(i.indexOf(\")\"+cons[p])!=-1){\
120
    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
121
   };\
122
  };\
123
  i = i.replace(/\\)\\(/g,\")*(\");\
124
 };\
125
 return i;\
126
};");
18553 bpr 127
        break;
128
      case JS_PLOT:
129
        fprintf(js_include_file,"\n/* jsplot() */\
15111 schaersvoo 130
var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
131
function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
132
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
133
 var ctx = obj.getContext(\"2d\");\
134
 ctx.clearRect(0,0,xsize,ysize);\
135
 animation_funs = funs.length;\
136
 function eval_jsmath(x,func){return parseFloat(eval(func));};\
137
 if(origin == 0 ){\
138
  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
139
  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
140
  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
141
  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
142
 };\
143
 x_anim_points = [];y_anim_points = [];var idx=0;\
144
 if( use_parametric == 1){\
145
  for(var i = 0 ; i < animation_funs; i=i+2){\
15351 bpr 146
   funs[i] = funs[i].replace(/t/g,'x');\
147
   funs[i+1] = funs[i+1].replace(/t/g,'x');\
148
   funs[i] = funs[i].replace(/xan/g,'tan');\
149
   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
15111 schaersvoo 150
   var fun_x = to_js_math(funs[i]);\
151
   var fun_y = to_js_math(funs[i+1]);\
152
   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;};\
153
   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;};\
154
   ctx.lineWidth = linewidth[i] || linewidth;\
155
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
156
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
157
   var y1;var x1;var y2;var x2;\
158
   ctx.beginPath();\
159
   var tmin = trange[0];var tmax = trange[1];\
160
   var step = parseFloat((tmax - tmin)/plotsteps);\
161
   for(var p = tmin ; p < tmax; p = p+step ){\
162
    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
163
    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
164
    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
165
    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
166
    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
167
     ctx.moveTo(x1,y1);\
168
     ctx.lineTo(x2,y2);\
169
     ctx.moveTo(x1,y1);\
170
     ctx.lineTo(x2,y2);\
171
   };\
172
   ctx.closePath();\
173
   ctx.stroke();\
174
  };\
175
  animation_funs = 0.5*animation_funs;\
176
 }else{\
177
  for(var i = 0 ; i < animation_funs; i++){\
178
   var fun = to_js_math(funs[i]);\
179
   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;};\
180
   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;};\
181
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
182
   ctx.lineWidth = linewidth[i] || linewidth;\
183
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
184
   var y1;var x1;var y2;var x2;\
185
   ctx.beginPath();\
186
   for(var p = 0 ; p<xsize;p++){\
187
    x1 = px2x(p);\
188
    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
189
    x2 = px2x(p+1);\
190
    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
191
    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
192
    if(Math.abs(y2-y1) < ysize ){\
193
     ctx.moveTo(p,y1);\
194
     ctx.lineTo(p+1,y2);\
195
    };\
196
   };\
197
   ctx.closePath();\
198
   ctx.stroke();\
199
  };\
200
 };\
201
 if( use_animate == 1 ){animation_steps = idx;animate_this();}\
202
};",canvas_root_id);
18553 bpr 203
        break;
204
      case JS_MATH:
18218 schaersvoo 205
/* 5/2024 added exp -> e^ -> (2.718281828459045)^ */
18553 bpr 206
        fprintf(js_include_file,"\n/* to_js_math() */\
15111 schaersvoo 207
function to_js_math(math_fun){\
208
 if(math_fun == null){return;};\
18218 schaersvoo 209
 var infun=[\"exp\",\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
210
 var outfun=[\"(2.718281828459045)^\",\"Math.sqrt\",\"Math.pow\",\"Math.asin\",\"Math.acos\",\"Math.atan\",\"Math.log\",\"(3.14159265358979)\",\"Math.abs\",\"Math.sin\",\"Math.cos\",\"Math.tan\",\"(2.718281828459045)\"];\
15111 schaersvoo 211
 var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
212
 for(var p=0 ; p < len ; p++){\
18218 schaersvoo 213
  in_fun = infun[p];   In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
15111 schaersvoo 214
  if(math_fun.indexOf(in_fun) != -1){\
215
   if(in_fun == \"^\"){\
216
    var tab = [];var small_trick = \"___small_trick___\";\
217
    while (math_fun.indexOf(\"(\") != -1){\
218
     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
219
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
220
    };\
221
    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
222
    while (math_fun.indexOf(small_trick) != -1){\
223
     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)\");});\
224
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
225
    };\
16844 bpr 226
   } else {\
15111 schaersvoo 227
    while( math_fun.indexOf(in_fun) != -1 ){\
228
     math_fun = math_fun.replace(in_fun,out_fun);\
229
     math_fun = math_fun.replace(in_fun,In_Fun);\
230
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
231
    };\
232
   };\
233
  };\
234
 };\
235
 for(var p=0 ; p < len ; p++){\
236
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
237
  if(math_fun.indexOf(In_Fun) != -1 ){\
238
   while(math_fun.indexOf(In_Fun) != -1){\
239
    math_fun = math_fun.replace(In_Fun,in_fun);\
240
    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
241
   };\
242
  };\
243
 };\
244
 return math_fun;\
245
};");
18553 bpr 246
        break;
247
      case INTERACTIVE:
17351 bpr 248
/* 1/8/2022 NOTE : getMouse() code should run at maximum speed and not be bothered with all kind of fancy tests !!
16943 schaersvoo 249
  1/8/2022 : latest improvements related to 'reponsiveness' will fatally lockup browsers in the pixel-by-pixel filling...at least in userdraw clickfill...*/
18553 bpr 250
        fprintf(js_include_file,"\n/* add mouse support */\
16845 bpr 251
var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));\
252
var getMouse = function(e, element){\
253
   var mx,my;var offsetX = 0,offsetY = 0;\
254
   while( ( element = element.offsetParent) ){\
255
     offsetX += element.offsetLeft;offsetY += element.offsetTop;\
256
   };\
257
   /*console.log('===');*/\
258
   if(isTouch){\
259
      mx = e.pageX - offsetX; my = e.pageY - offsetY;\
260
   }else{\
261
      mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);\
262
      my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);\
263
   };\
16942 schaersvoo 264
   if( typeof(clickfill) === 'function'){ return {x: mx, y: my};}else{\
16845 bpr 265
   /* test if canvas_div is inside a scrollable */\
266
   const scroll_parent = canvas_div.closest('.wims_scrollable');\
267
   if (scroll_parent){\
268
      mx = mx + scroll_parent.scrollLeft;\
269
      my = my + scroll_parent.scrollTop;\
270
   }\
271
   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
272
   /*console.log('mx before=' + mx);\
273
   console.log('xsize='+xsize);\
274
   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
275
   mx = (mx * xsize / canvas_div.offsetWidth);\
276
   /*console.log('mx after='+mx);*/\
277
   my = (my * ysize / canvas_div.offsetHeight);\
16942 schaersvoo 278
   return {x: mx, y: my};};\
16845 bpr 279
};");
18553 bpr 280
        break;
281
      case USERDRAW_AND_ZOOM:
282
        fprintf(js_include_file,"\n/* add zoom support for multidraw */\
15111 schaersvoo 283
function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
284
 function x_zoom(px){\
285
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
286
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
287
 };\
288
 function y_zoom(py){\
289
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
290
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
291
 };\
292
 function r_zoom(r){\
293
  return r*(xmin0/xmin);\
294
 };\
295
 var len = userdraw_x.length;\
296
 var x;var y;var r;\
297
 for(var p=0;p<len;p++){\
298
  x = userdraw_x[p];\
299
  y = userdraw_y[p];\
300
  userdraw_x[p] = x_zoom(x);\
301
  userdraw_y[p] = y_zoom(y);\
302
  if( userdraw_radius[p] ){\
303
   r = userdraw_radius[p];\
304
   userdraw_radius[p] = r_zoom(r);\
305
  };\
306
 };\
307
};");
18556 bpr 308
        break;
15111 schaersvoo 309
 
18556 bpr 310
      case DRAG_AND_ZOOM:
311
        fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
15111 schaersvoo 312
function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
313
 function x_zoom(px){\
314
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
315
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
316
 };\
317
 function y_zoom(py){\
318
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
319
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
320
 };\
321
 var len = dragstuff.shapes.length;\
322
 var shape;var L;var x;var y;\
323
 for(var p=0;p<len;p++){\
324
  shape = dragstuff.shapes[p];\
325
  L = shape.x.length;\
326
  for(var i=0;i<L;i++){\
327
   x = shape.x[i];\
328
   y = shape.y[i];\
329
   dragstuff.shapes[p].x[i] = x_zoom(x);\
330
   dragstuff.shapes[p].y[i] = y_zoom(y);\
331
  };\
332
 };\
333
};");
18556 bpr 334
        break;
335
      case JSPLOT_AND_ZOOM:
336
        fprintf(js_include_file,"\n/* add zoom support for jscurves */\
15111 schaersvoo 337
function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
18556 bpr 338
        break;
339
      case JS_ZOOM:
340
        fprintf(js_include_file,"\n/* add zoom support */\
15111 schaersvoo 341
var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
342
var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
343
function redraw_canvas%d(key){\
344
 var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
345
 switch(key){\
346
  case 0: xmin++;ymin++;xmax--;ymax--;break;\
347
  case 1: xmin--;ymin--;xmax++;ymax++;break;\
348
  case 2: xmin--;xmax--;break;\
349
  case 3: xmin++;xmax++;break;\
350
  case 4: ymin--;ymax--;break;\
351
  case 5: ymax++;ymin++;break;\
352
  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
353
  default: break;\
354
 };\
355
 if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
356
 if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
357
 if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
358
 if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
359
 if( typeof(redraw_grid) === 'function'){redraw_grid();};\
360
 if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
361
 if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
362
 return;\
363
};\
364
canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
365
canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
366
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
367
function wheel_zoom(evt){\
368
 evt.preventDefault();\
369
 var key = 1;\
370
 if(evt.deltaY > 0 ){key = 0};\
371
 redraw_canvas%d(key);\
372
 return;\
373
};\
374
function check_zoom_or_pan(evt){\
375
 var mouse = getMouse(evt,zoomcanvas);\
376
 var my = mouse.y;\
377
 if(my < ysize - 30){ return; };\
378
 var mx = mouse.x;\
379
 var key = -1;\
380
 for(var p = 15 ; p < 106 ; p = p+15){\
381
  key++;\
382
  if(mx > xsize - p){\
383
   redraw_canvas%d(key);\
384
   return;\
385
  };\
386
 };\
387
 return;\
388
};",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
18556 bpr 389
        break;
15111 schaersvoo 390
 
18556 bpr 391
      case DRAW_FILL_PATTERN:
392
        fprintf(js_include_file,"\n /* add fill pattern */ \
15111 schaersvoo 393
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;\
394
 switch(type){\
395
  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;\
396
  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;\
397
  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;\
398
  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;\
399
  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
400
  default: break;\
401
 };\
402
 document.body.style.cursor = 'default';return pat;\
403
};",canvas_root_id);
18556 bpr 404
        break;
15111 schaersvoo 405
 
18556 bpr 406
      case JS_TRANSFORM_MOUSE:
15111 schaersvoo 407
/* identify mouse coordinates on transformed objects using command affine */
18556 bpr 408
        fprintf(js_include_file,"\n/* translate mouse */\
15111 schaersvoo 409
function transform_mouse(mx,my,obj){\
410
if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
411
var m = obj.affine_matrix;\
412
var d = 1/(m[0]*m[3]-m[1]*m[2]);\
413
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]) ];\
414
return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
18556 bpr 415
        break;
416
      case JS_ROTATE_MOUSE:
15111 schaersvoo 417
/*
418
identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
419
faster than transform matrix
420
*/
18556 bpr 421
        fprintf(js_include_file,"\n/* rotate mouse */\
15111 schaersvoo 422
function rotate_mouse(mx,my,obj){\
423
 if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
424
 var cos = Math.cos(obj.angle);\
425
 var sin = Math.sin(obj.angle);\
426
 var xc = obj.rotation_center[0];\
427
 var yc = obj.rotation_center[1];\
428
 var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
429
 var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
430
 return {x:x_r,y:y_r};};");
18556 bpr 431
        break;
432
      case JS_FIND_ANGLE:
433
        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);};");
434
        break;
435
      case DRAG_EXTERNAL_IMAGE:
15111 schaersvoo 436
/*
437
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
438
reply is object{} and identical to reply from dragstuff library for drag&drop&click
439
*/
18556 bpr 440
        fprintf(js_include_file,"\n/* drag external images */\
15111 schaersvoo 441
var external_ctx = external_canvas.getContext(\"2d\");\
442
var external_canvas_rect = external_canvas.getBoundingClientRect();\
443
canvas_div.addEventListener(\"mousedown\",setxy,false);\
444
canvas_div.addEventListener(\"mouseup\",dragstop,false);\
445
canvas_div.addEventListener(\"mousemove\",dragxy,false);\
446
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
447
canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
448
canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
449
var selected_image = null;\
450
if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
451
if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
17518 schaersvoo 452
if( typeof(slidergroup) == 'undefined' ) { var slidergroup = [];};\
15111 schaersvoo 453
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
454
 var image = new Image();\
455
 image.src = URL;\
456
 slidergroup[object_cnt] = null;\
457
 image.onload = function(){\
458
  if( sx < 1 ){ sx = 0; };\
459
  if( sy < 1 ){ sy = 0; };\
460
  if( swidth < 1 ){swidth = image.width;};\
461
  if( sheight < 1 ){sheight = image.height;};\
462
  if( width < 1 ){width = image.width;};\
463
  if( height < 1 ){height = image.height;};\
464
  if( resize == 1 ){\
465
   if( swidth > image.width ){ swidth = image.width; };\
466
   if( sheight > image.height){ sheight = image.height;};\
467
   if( width > image.width ){ width = image.width; };\
468
   if( height > image.height){ height = image.height;};\
469
  };\
470
  var img = new Array(18);\
471
  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
472
  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
473
  img[6] = x0;img[7] = y0;\
474
  img[12] = ext_image_cnt;\
475
  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
476
  if(use_offset == 4 ){\
477
   img[16] = 0.5*img[8];\
478
   img[17] = 0.5*img[9];\
479
   img[6]= parseInt(img[6] - img[16]);\
480
   img[7]= parseInt(img[7] - img[17]);\
481
  };\
482
  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
16847 schaersvoo 483
  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
15111 schaersvoo 484
  ext_drag_images[ext_image_cnt] = img;\
485
  ext_image_cnt++;\
486
 };\
487
};\
488
function dragstop(evt){\
489
 if(selected_image != null){\
490
  var s_img = ext_drag_images[selected_image];\
16847 schaersvoo 491
  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 492
 };\
493
 selected_image = null;return;\
494
};\
495
function dragxy(evt){\
496
 if( selected_image != null ){\
497
  var s_img = ext_drag_images[selected_image];\
498
  var mouse = getMouse(evt,external_canvas);\
499
  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
500
  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
501
  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
502
  s_img[6] = xy[0];s_img[7] = xy[1];\
503
  ext_drag_images[selected_image] = s_img;\
504
  external_ctx.clearRect(0,0,xsize,ysize);\
505
  for(var i = 0; i < ext_image_cnt ; i++){\
506
   var img = ext_drag_images[i];\
507
   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
508
  };\
509
 };\
510
};\
511
function setxy(evt){\
512
 if( ! selected_image ){\
513
  var mouse = getMouse(evt,external_canvas);\
514
  var xm = mouse.x;\
515
  var ym = mouse.y;\
516
  var img;var xmarge;var ymarge;\
517
  for(var p = 0 ; p < ext_image_cnt ; p++){\
518
   if( ext_drag_images[p] ){\
519
    img = ext_drag_images[p];\
520
    if( img[0] != 0 ){\
521
     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
522
     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
523
      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
524
       if( img[0] == 1){\
525
        if( dragdrop_reply[img[10]].clicked == 1 ){\
526
         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
527
        }\
528
        else\
529
        {\
530
         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
531
        };\
532
        external_ctx.lineWidth = 2;\
533
        external_ctx.beginPath();\
534
        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
535
        external_ctx.closePath();\
536
        external_ctx.stroke();\
537
        return;\
538
       }\
539
       else\
540
       {\
541
        img[6] = xm;\
542
        img[7] = ym;\
543
        selected_image = p;\
544
        dragxy(evt);\
545
        ext_drag_images[p] = img;\
546
       };\
547
      };\
548
     };\
549
    };\
550
   };\
551
  };\
16844 bpr 552
 } else {\
15111 schaersvoo 553
  selected_image = null;\
554
 };\
555
};");
18556 bpr 556
        break;
557
      case DRAW_EXTERNAL_IMAGE:
15111 schaersvoo 558
/*
559
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
560
only drag_xy !
561
snaptogrid | xsnaptogrid | ysnaptogrid works
562
14/5/2019
563
on heavy styled wims (unice.fr etc problems with mouse?
564
now uniform method of retreiving mouse coordinates getMouse()
565
*/
18556 bpr 566
        fprintf(js_include_file,"\n/* draw external images */\
15111 schaersvoo 567
function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
568
 var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
569
 var image = new Image();\
570
 image.src = URL;\
571
 image.onload = function(){\
572
  if( sx < 1 ){ sx = 0; };\
573
  if( sy < 1 ){ sy = 0; };\
574
  if( swidth < 1 ){swidth = image.width;};\
575
  if( sheight < 1 ){sheight = image.height;};\
576
  if( width < 1 ){width = image.width;};\
577
  if( height < 1 ){height = image.height;};\
578
  if( resize == 1 ){\
579
   if( swidth > image.width ){ swidth = image.width; };\
580
   if( sheight > image.height){ sheight = image.height;};\
581
   if( width > image.width ){ width = image.width; };\
582
   if( height > image.height){ height = image.height;};\
583
  };\
584
  var img = new Array(9);\
585
  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
586
  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
587
  img[7] = width;img[8] = height;\
588
  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
589
 };\
590
};");
18556 bpr 591
        break;
592
      case DRAW_BEZIER:
593
        fprintf(js_include_file,"\n/* draw bezier curve */\
15111 schaersvoo 594
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
595
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){\
596
 var obj;\
597
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
598
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 599
 } else {\
15111 schaersvoo 600
  obj = create_canvas%d(canvas_type,xsize,ysize);\
601
 };\
602
 var ctx = obj.getContext(\"2d\");\
603
 ctx.save();\
604
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
605
 ctx.lineWidth = linewidth;\
606
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
607
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
608
 ctx.beginPath();\
609
 ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
610
 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]));\
611
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
612
 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;};\
613
 ctx.stroke();\
614
 ctx.restore();\
615
};",canvas_root_id,canvas_root_id,canvas_root_id);
18556 bpr 616
        break;
617
      case DRAW_GRIDFILL:/* not used for userdraw */
618
        fprintf(js_include_file,"\n/* draw gridfill */\
15111 schaersvoo 619
var grid_fill_pattern;\
620
function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
621
 if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
622
 var fc = %d+canvas_type;\
623
 var obj = create_canvas%d(fc,xsize,ysize);\
624
 var ctx = obj.getContext('2d');\
625
 var x,y;\
18612 bpr 626
 ctx.fillStyle='rgba(255,255,255,0.01)';\
15111 schaersvoo 627
 ctx.rect(0,0,xsize,ysize);\
628
 ctx.fill();\
629
 ctx.lineWidth = linewidth;\
18612 bpr 630
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
15111 schaersvoo 631
 for( x = 0 ; x <= xsize ; x = x + dx ){\
632
  ctx.beginPath();\
633
  ctx.moveTo(x,0);\
634
  ctx.lineTo(x,ysize);\
635
  ctx.closePath();\
636
  ctx.stroke();\
637
 };\
638
 for( y = 0 ; y <= ysize; y = y + dy ){\
639
  ctx.beginPath();\
640
  ctx.moveTo(0,y);\
641
  ctx.lineTo(xsize,y);\
642
  ctx.closePath();\
643
  ctx.stroke();\
644
 };\
645
 if( use_userdraw ){\
646
  grid_fill_pattern = ctx;\
16844 bpr 647
 } else {\
18609 bpr 648
  setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);};return;\
15111 schaersvoo 649
};",canvas_root_id,canvas_root_id);
18556 bpr 650
        break;
651
      case DRAW_IMAGEFILL:/* not  used for userdraw */
652
        fprintf(js_include_file,"\n/* draw imagefill */\
15111 schaersvoo 653
function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
654
 var fc = %d+canvas_type;\
655
 var obj = create_canvas%d(fc,xsize,ysize);\
656
 var ctx = obj.getContext('2d');\
657
 var img = new Image();\
658
 img.src = URL;\
659
 obj.style.visibility = 'hidden';\
660
 img.onload = function(){\
661
  if( use_scaling == 1 ){\
662
   ctx.drawImage(img,x0,y0,xsize,ysize);\
663
  }else{\
664
   var w0 = img.width;var h0 = img.height;var w;var h;\
665
   for( w = x0; w < xsize ; w = w + w0 ){\
666
    for( h = y0; h < ysize; h = h + h0){\
667
      ctx.drawImage(img,w,h,w0,h0);\
668
    };\
669
   };\
670
  };\
671
  if( use_userdraw ){\
672
   image_pattern = ctx;\
16844 bpr 673
  } else {\
18609 bpr 674
   setTimeout(function(){ filltoborder( x0,y0,false,'red',canvas_type,true,ctx); },500);\
15111 schaersvoo 675
  };\
676
 };\
677
};",canvas_root_id,canvas_root_id);
18553 bpr 678
        break;
679
      case DRAW_DOTFILL:/* not  used for userdraw */
680
        fprintf(js_include_file,"\n/* draw dotfill */\
15111 schaersvoo 681
var dot_fill_pattern;\
682
function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
683
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
684
var fc = %d+canvas_type;\
685
 var obj = create_canvas%d(fc,xsize,ysize);\
686
 var ctx = obj.getContext('2d');\
687
 var x,y;\
18612 bpr 688
 ctx.fillStyle='rgba(255,255,255,0.01)';\
15111 schaersvoo 689
 ctx.rect(0,0,xsize,ysize);\
690
 ctx.fill();\
18612 bpr 691
 ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
692
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
15111 schaersvoo 693
 for( x = 0 ; x < xsize ; x = x + dx ){\
694
  for( y = 0 ; y < ysize ; y = y + dy ){\
695
   ctx.beginPath();\
696
   ctx.arc(x,y,radius,0,2*Math.PI,false);\
697
   ctx.closePath();\
698
   ctx.fill();\
699
  };\
700
 };\
701
 if( use_userdraw ){\
702
  dot_fill_pattern = ctx;\
16844 bpr 703
 } else {\
18609 bpr 704
 setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
15111 schaersvoo 705
 };\
706
return;\
707
};",canvas_root_id,canvas_root_id);
18553 bpr 708
        break;
709
      case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
16722 schaersvoo 710
/* use_offset
711
 0=none;
712
 1=yoffset
713
 2=xoffset
714
 3=xyoffset
715
 4=centered
716
*/
18553 bpr 717
        fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
16722 schaersvoo 718
function draw_subsup(ctx,x,y,txt,use_offset){\
16712 schaersvoo 719
 var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
16722 schaersvoo 720
 var m = 0.4*(ctx.measureText(txt).width);\
721
 var h = ctx.measureText('M').width;\
722
 switch(use_offset){\
723
  case 0:break;\
17586 schaersvoo 724
  case 1:y=y-h;break;\
16722 schaersvoo 725
  case 2:x=x+h;break;\
17586 schaersvoo 726
  case 3:x=x+h;y=y-h;break;\
16722 schaersvoo 727
  case 4:x=x-m;break;\
728
  default:break;\
729
 };\
17586 schaersvoo 730
 var alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';\
731
 function check_alpha(C){if(alphabet.indexOf(C) != -1){return 1;}else{return 0;};};\
16845 bpr 732
 var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
733
 ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
16705 schaersvoo 734
 for( c = 0 ; c < len ;c++){\
16700 schaersvoo 735
  C = txt.charAt(c);space = 0;\
16845 bpr 736
  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
16714 schaersvoo 737
  else\
16845 bpr 738
  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
16714 schaersvoo 739
  else\
17586 schaersvoo 740
  if(C == ' ' ){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
16714 schaersvoo 741
  else\
17586 schaersvoo 742
  if( subsup == 1 &&  c == '-'){c = '\\u2212';ctx.font = s+'px Helvetica';}\
743
  else\
744
  if( subsup == 1 &&  c == '+'){c = '\\u002B';ctx.font = s+'px Helvetica';}\
745
  else\
746
  if( check_alpha(C) == 1 ){ctx.font = S+'px Helvetica';subsup = 0;baseline = 'middle';}\
747
  else\
16714 schaersvoo 748
  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
17586 schaersvoo 749
  else{ ctx.font = S+'px Helvetica';};\
16712 schaersvoo 750
  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
16700 schaersvoo 751
 };\
16705 schaersvoo 752
 ctx.stroke();\
16700 schaersvoo 753
 ctx.restore();\
754
 return;\
755
};");
18553 bpr 756
        break;
757
      case DRAW_TEXTFILL:/* not  used for userdraw */
758
        fprintf(js_include_file,"\n/* draw textfill */\
15111 schaersvoo 759
var text_fill_pattern;\
760
function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
761
var fc = %d+canvas_type;\
762
var obj = create_canvas%d(fc,xsize,ysize);\
763
var ctx = obj.getContext('2d');\
764
ctx.font = fontfamily;\
765
var dx = 2+(ctx.measureText(txt)).width;\
766
var dy = 2+(ctx.measureText('MI')).width;\
18612 bpr 767
ctx.fillStyle='rgba(255,255,255,0.01)';\
15111 schaersvoo 768
ctx.rect(0,0,xsize,ysize);\
769
ctx.fill();\
18612 bpr 770
ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
771
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
15111 schaersvoo 772
for(var x = 0 ; x <= xsize ; x = x + dx ){\
773
 for(var y = 0 ; y <= ysize ; y = y + dy ){\
774
  ctx.fillText(txt, x, y);\
775
 };\
776
};\
777
if( use_userdraw ){\
778
 text_fill_pattern = ctx;\
779
}\
780
else\
781
{\
18609 bpr 782
 setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
15111 schaersvoo 783
};\
784
return;};",canvas_root_id,canvas_root_id);
18553 bpr 785
        break;
786
      case DRAW_DIAMONDFILL:/* not used for userdraw */
18573 bpr 787
        fprintf(js_include_file,"\n/* draw_diamond fill */\
15111 schaersvoo 788
var diamond_fill_pattern;\
789
function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
790
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
18588 bpr 791
if (dx < 0) dx = -dx; if (dy < 0) dy = -dy;\
792
let nx = Math.ceil(xsize/dx), ny = Math.ceil(ysize/dy);\
793
let i,m = (nx > ny) ? nx : ny;\
15111 schaersvoo 794
var fc = %d+canvas_type;\
795
var obj = create_canvas%d(fc,xsize,ysize);\
796
var ctx = obj.getContext('2d');\
797
ctx.lineWidth = linewidth;\
18612 bpr 798
ctx.fillStyle='rgba(255,255,255,0.01)';\
15111 schaersvoo 799
ctx.rect(0,0,xsize,ysize);\
800
ctx.fill();\
18612 bpr 801
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
15111 schaersvoo 802
ctx.beginPath();\
18588 bpr 803
  for(i = -2*m ; i<=m ; ++i){\
804
    ctx.moveTo(0,i*dy);\
805
    ctx.lineTo(m*dx,(i+m)*dy);\
806
    ctx.moveTo(0,-i*dy);\
807
    ctx.lineTo(m*dx,-(i+m)*dy);\
808
  }\
15111 schaersvoo 809
ctx.closePath();\
810
ctx.stroke();\
811
if( use_userdraw ){\
812
 diamond_fill_pattern = ctx;\
813
}\
814
else\
815
{\
18609 bpr 816
 setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
15111 schaersvoo 817
};\
818
return;\
819
}",canvas_root_id,canvas_root_id);
18553 bpr 820
        break;
821
      case DRAW_HATCHFILL:/* not used for userdraw */
822
        fprintf(js_include_file,"\n/* draw hatch fill */\
15111 schaersvoo 823
var hatch_fill_pattern;\
824
function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
825
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
18588 bpr 826
if (dx < 0) {dx = -dx; dy = -dy;}\
827
let nx = Math.ceil(xsize/dx), ny = Math.ceil(ysize/Math.abs(dy));\
828
let i,m = (nx > ny) ? nx : ny;\
15111 schaersvoo 829
var fc = %d+canvas_type;\
830
var obj = create_canvas%d(fc,xsize,ysize);\
831
var ctx = obj.getContext('2d');\
18612 bpr 832
ctx.fillStyle='rgba(255,255,255,0.01)';\
15111 schaersvoo 833
ctx.rect(0,0,xsize,ysize);\
834
ctx.fill();\
18612 bpr 835
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
15111 schaersvoo 836
ctx.lineWidth = linewidth;\
837
ctx.beginPath();\
18588 bpr 838
  for(i = -2*m ; i<=m ; ++i){\
839
    ctx.moveTo(0,i*dy);\
840
    ctx.lineTo(m*dx,(i+m)*dy);\
841
  }\
15111 schaersvoo 842
ctx.closePath();\
843
ctx.stroke();\
844
if( use_userdraw ){\
845
 hatch_fill_pattern = ctx;\
846
}\
847
else\
848
{\
18609 bpr 849
 setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
15111 schaersvoo 850
};\
851
return;};",canvas_root_id,canvas_root_id);
18553 bpr 852
        break;
853
      case DRAW_LINES:/*  used for js-tracing */
854
        fprintf(js_include_file,"\n/* draw lines */\
15111 schaersvoo 855
function calc_line(x1,x2,y1,y2){\
856
 var marge = 2;\
857
 if(x1 < x2+marge && x1>x2-marge){\
858
  return [x1,0,x1,ysize];\
859
 };\
860
 if(y1 < y2+marge && y1>y2-marge){\
861
  return [0,y1,xsize,y1];\
862
 };\
863
 var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
864
 var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
865
 return [0,Y1,xsize,Y2];\
866
};\
867
var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
868
 ctx.save();\
869
 var line = new Array(4);\
870
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
871
 ctx.lineWidth = line_width;\
872
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
873
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
874
 for(var p = 0 ; p < x_points.length ; p = p+2 ){\
875
  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
876
  ctx.beginPath();\
877
  ctx.moveTo(line[0],line[1]);\
878
  ctx.lineTo(line[2],line[3]);\
879
  ctx.closePath();\
880
  ctx.stroke();\
881
  }\
882
  ctx.restore();\
883
  return;\
884
 };");
18553 bpr 885
        break;
886
      case DRAW_CROSSHAIRS:/*  used for tracing */
887
        fprintf(js_include_file,"\n/* draw crosshairs  */\
15111 schaersvoo 888
var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
889
 ctx.save();\
890
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
891
 ctx.lineWidth = line_width;\
892
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
893
 var x1,x2,y1,y2;\
894
 for(var p = 0 ; p < x_points.length ; p++ ){\
895
  x1 = x_points[p] - crosshair_size;\
896
  x2 = x_points[p] + crosshair_size;\
897
  y1 = y_points[p] - crosshair_size;\
898
  y2 = y_points[p] + crosshair_size;\
899
  ctx.beginPath();\
900
  ctx.moveTo(x1,y1);\
901
  ctx.lineTo(x2,y2);\
902
  ctx.closePath();\
903
  ctx.stroke();\
904
  ctx.beginPath();\
905
  ctx.moveTo(x2,y1);\
906
  ctx.lineTo(x1,y2);\
907
  ctx.closePath();\
908
  ctx.stroke();\
909
 }\
910
 ctx.restore();\
911
  return;\
912
};");
18553 bpr 913
        break;
914
      case DRAW_VIDEO:/* not  used for userdraw */
915
        fprintf(js_include_file,"\n/* draw video */\
15111 schaersvoo 916
var draw_video = function(canvas_root_id,x,y,w,h,URL){\
917
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
918
 var video_div = document.createElement(\"div\");\
919
 canvas_div.appendChild(video_div);\
920
 video_div.style.position = \"absolute\";\
921
 video_div.style.left = x+\"px\";\
922
 video_div.style.top = y+\"px\";\
923
 video_div.style.width = w+\"px\";\
924
 video_div.style.height = h+\"px\";\
925
 var video = document.createElement(\"video\");\
926
 video_div.appendChild(video);\
927
 video.style.width = w+\"px\";\
928
 video.style.height = h+\"px\";\
929
 video.autobuffer = true;\
930
 video.controls = true;video.autoplay = false;\
931
 var src = document.createElement(\"source\");\
932
 src.type = \"video/mp4\";\
933
 src.src = URL;\
934
 video.appendChild(src);\
935
 video.load();\
936
 return;\
937
};");
18553 bpr 938
        break;
939
      case DRAW_AUDIO:/* not used for userdraw */
940
        fprintf(js_include_file,"\n/* draw audio */\
15111 schaersvoo 941
var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
942
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
943
 var audio_div = document.createElement(\"div\");\
944
 canvas_div.appendChild(audio_div);\
945
 audio_div.style.position = \"absolute\";\
946
 audio_div.style.left = x+\"px\";\
947
 audio_div.style.top = y+\"px\";\
948
 audio_div.style.width = w+\"px\";\
949
 audio_div.style.height = h+\"px\";\
950
 var audio = document.createElement(\"audio\");\
951
 audio_div.appendChild(audio);\
952
 audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
953
 audio.autobuffer = true;\
954
 if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
955
 if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
956
 var src1 = document.createElement(\"source\");\
957
 src1.type = \"audio/ogg\";\
958
 src1.src = URL1;\
959
 audio.appendChild(src1);\
960
 var src2 = document.createElement(\"source\");\
961
 src2.type = \"audio/mpeg\";\
962
 src2.src = URL2;\
963
 audio.appendChild(src2);\
964
 audio.load();\
965
 return;\
966
};");
18553 bpr 967
        break;
968
      case DRAW_HTTP:/* not  used for userdraw */
969
        fprintf(js_include_file,"\n/* draw http */\
15111 schaersvoo 970
var draw_http = function(canvas_root_id,x,y,w,h,URL){\
971
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
972
 var http_div = document.createElement(\"div\");\
973
 var iframe = document.createElement(\"iframe\");\
974
 canvas_div.appendChild(http_div);\
975
 http_div.appendChild(iframe);\
976
 iframe.src = URL;\
977
 iframe.setAttribute(\"width\",w);\
978
 iframe.setAttribute(\"height\",h);\
979
 return;\
980
};");
18553 bpr 981
        break;
982
      case DRAW_XML:
15111 schaersvoo 983
/*
984
!! function draw_xml(object)
985
!! produced by : DRAW_XML
986
!! used by commands: katex,latex,mathml,html,obabel
987
!! uses js-functions: calculate_size(xml_div),rad2deg(rad)
988
!! user interaction: drag,onclick,slider
989
!! reply function: read_dragdrop()
990
 
991
onclick=0; no interaction
992
onclick=1: click
993
onclick=2: drag ==> always centered (use_offset=4)
994
onclick=3: slider + click on object
995
onclick=4: slider (always active , keyword 'active' in slider params)
996
onclick=5: slider + dragdrop
997
xy:  drag_type = 0;
998
x:   drag_type = 1;
999
y:   drag_type = 2;
1000
 
1001
obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
1002
*/
1003
 
18553 bpr 1004
        fprintf(js_include_file,"\n/* draw xml */\
15111 schaersvoo 1005
function centered(xml_div,obj){\
1006
 var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
1007
 var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
1008
 obj.offset = [ ww , hh ];\
16845 bpr 1009
 /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
1010
 xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
1011
 xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
1012
 xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
15111 schaersvoo 1013
};\
1014
function rad2deg(rad){return rad*180/(Math.PI);};\
1015
if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
1016
function draw_xml(obj){\
1017
 var mouse;var xy = [obj.x[0],obj.y[0]];\
1018
 var xml_div;\
1019
 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};\
1020
 if( obj.once ){\
1021
  xml_div = document.createElement('DIV');\
1022
  canvas_div.appendChild(xml_div);\
1023
  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
1024
  xml_div.id = 'xml_div'+obj.id;\
1025
  xml_div.innerHTML = obj.mathml;\
16845 bpr 1026
  xml_div.classList.add('canvasdraw_xml');\
15111 schaersvoo 1027
  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
1028
  xml_div.style.font = obj.fontfamily;\
1029
  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 1030
  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
16844 bpr 1031
 } else {\
15111 schaersvoo 1032
  xml_div = document.getElementById('xml_div'+obj.id );\
1033
 };\
16845 bpr 1034
 if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
1035
 /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
1036
 xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
1037
 xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
1038
 xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
15111 schaersvoo 1039
 var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
1040
 var no_color = 'rgba(255,255,255,0)';var dragging = false;\
1041
 if( obj.use_affine != 0 || obj.angle != 0 ){\
1042
  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)';\
1043
 };\
1044
 if( obj.once ){\
1045
  obj.once = false;\
1046
  switch(obj.onclick){\
1047
   case 2:\
1048
    if(isTouch){\
1049
     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);\
1050
     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);\
1051
     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);\
1052
     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 1053
    } else {\
15111 schaersvoo 1054
     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);\
1055
     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);\
1056
     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);\
1057
    };\
1058
    break;\
1059
   case 1:\
16844 bpr 1060
    if(isTouch){\
15111 schaersvoo 1061
     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 1062
    } else {\
15111 schaersvoo 1063
     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);\
1064
    };\
1065
    break;\
1066
   case 3:\
16844 bpr 1067
    if(isTouch){\
15111 schaersvoo 1068
     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 1069
    } else {\
15111 schaersvoo 1070
     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);\
1071
    };\
1072
    break;\
1073
   case 4:slidergroup[obj.object_cnt] = obj;break;\
1074
   case 5:slidergroup[obj.object_cnt] = obj;\
1075
    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);\
1076
    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);\
1077
    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);\
1078
    break;\
1079
   default: break;\
1080
  };\
1081
 };\
1082
 return;\
16642 schaersvoo 1083
};",mathjax);
15111 schaersvoo 1084
 
1085
/*
1086
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));\
1087
*/
18553 bpr 1088
        break;
1089
      case DRAW_SGRAPH:
15111 schaersvoo 1090
/*
1091
 xstart = given
1092
 ystart = given
1093
 sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
1094
*/
18553 bpr 1095
        fprintf(js_include_file,"\n/* draw sgraph */\
15111 schaersvoo 1096
var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
1097
 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);};\
1098
 var ctx = obj.getContext(\"2d\");\
1099
 ctx.font = fontfamily;\
1100
 var minor_opacity = 0.8*opacity;\
1101
 ctx.clearRect(0,0,xsize,ysize);\
1102
 var zero_x = 0.1*xsize;\
1103
 var zero_y = 0.9*ysize;\
1104
 var snor_x;var snor_y;\
1105
 if( xstart != xmin){\
1106
  snor_x = 0.1*xsize;\
16844 bpr 1107
 }else{\
15111 schaersvoo 1108
  snor_x = 0;\
1109
  xstart = xmin;\
1110
 };\
1111
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1112
 ctx.lineWidth = 2;\
1113
 ctx.beginPath();\
1114
 ctx.moveTo(xsize,zero_y);\
1115
 ctx.lineTo(zero_x,zero_y);\
1116
 ctx.lineTo(zero_x,0);\
1117
 ctx.stroke();\
1118
 ctx.closePath();\
1119
 ctx.beginPath();\
1120
 ctx.moveTo(zero_x,zero_y);\
1121
 ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
1122
 ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
1123
 ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
1124
 ctx.lineTo(zero_x + snor_x,zero_y);\
1125
 ctx.stroke();\
1126
 ctx.closePath();\
1127
 ctx.beginPath();\
1128
 var num = xstart;\
1129
 var flipflop = 1;\
1130
 var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
1131
 var txtsize;var txt_marge=step_x - 5;\
1132
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1133
  txtsize = ctx.measureText(num).width;\
1134
  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
1135
  if( flipflop == 1){\
1136
   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
16844 bpr 1137
  } else {\
15111 schaersvoo 1138
   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
1139
  };\
1140
  num = num + xmajor;\
1141
 };\
1142
 ctx.stroke();\
1143
 ctx.closePath();\
1144
 ctx.lineWidth = 1;\
1145
 ctx.beginPath();\
1146
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1147
   ctx.moveTo(x,zero_y);\
1148
   ctx.lineTo(x,0);\
1149
 };\
1150
 ctx.stroke();\
1151
 ctx.closePath();\
1152
 if( xminor > 1){\
1153
  ctx.lineWidth = 0.5;\
1154
  ctx.beginPath();\
1155
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1156
  var minor_step_x = step_x / xminor;\
1157
  var nx;\
1158
  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
1159
    num = 1;\
1160
    for(var p = 1 ; p < xminor ; p++){\
1161
     nx = x + num*minor_step_x;\
1162
     ctx.moveTo(nx,zero_y);\
1163
     ctx.lineTo(nx,0);\
1164
     num++;\
1165
    };\
1166
  };\
1167
  ctx.stroke();\
1168
  ctx.closePath();\
1169
  ctx.beginPath();\
1170
  ctx.lineWidth = 2;\
1171
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1172
  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1173
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
1174
  };\
1175
  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
1176
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
1177
  };\
1178
  ctx.stroke();\
1179
  ctx.closePath();\
1180
  ctx.lineWidth = 0.5;\
1181
 };\
1182
 xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
1183
 if( ystart != ymin){\
1184
  snor_y = 0.1*ysize;\
16844 bpr 1185
 } else {\
15111 schaersvoo 1186
  snor_y = 0;\
1187
  ystart = ymin;\
1188
 };\
1189
 ctx.lineWidth = 2;\
1190
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1191
 ctx.beginPath();\
1192
 ctx.moveTo(zero_x,zero_y);\
1193
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
1194
 ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
1195
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
1196
 ctx.lineTo(zero_x,zero_y - snor_y);\
1197
 ctx.stroke();\
1198
 ctx.closePath();\
1199
 ctx.beginPath();\
1200
 ctx.lineWidth = 1;\
1201
 num = ystart;\
1202
 var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
1203
 for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
1204
  ctx.moveTo(zero_x,y);\
1205
  ctx.lineTo(xsize,y);\
1206
  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
1207
  num = num + ymajor;\
1208
 };\
1209
 ctx.stroke();\
1210
 ctx.closePath();\
1211
 if( yminor > 1){\
1212
  ctx.lineWidth = 0.5;\
1213
  ctx.beginPath();\
1214
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1215
  var minor_step_y = step_y / yminor;\
1216
  var ny;\
1217
  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
1218
   num = 1;\
1219
   for(var p = 1 ;p < yminor;p++){\
1220
     ny = y + num*minor_step_y;\
1221
     ctx.moveTo(zero_x,ny);\
1222
     ctx.lineTo(xsize,ny);\
1223
     num++;\
1224
    };\
1225
  };\
1226
  ctx.stroke();\
1227
  ctx.closePath();\
1228
  ctx.lineWidth = 2;\
1229
  ctx.beginPath();\
1230
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1231
  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
1232
   ctx.moveTo(zero_x,y);\
1233
   ctx.lineTo(zero_x+12,y);\
1234
  };\
1235
  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
1236
   ctx.moveTo(zero_x,y);\
1237
   ctx.lineTo(zero_x+6,y);\
1238
  };\
1239
  ctx.stroke();\
1240
  ctx.closePath();\
1241
 };\
1242
 ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
1243
 if( typeof(legend%d)  !== 'undefined' ){\
1244
  ctx.globalAlpha = 1.0;\
1245
  var y_offset = 2*font_size;\
1246
  var txt;var txt_size;\
1247
  var x_offset = xsize - 2*font_size;\
1248
  var l_length = legend%d.length;var barcolor = new Array();\
1249
  if( typeof(legendcolors%d) !== 'undefined' ){\
1250
   for(var p = 0 ; p < l_length ; p++){\
1251
    barcolor[p] = legendcolors%d[p];\
1252
   };\
16844 bpr 1253
  } else {\
15111 schaersvoo 1254
   if( barcolor.length == 0 ){\
1255
    for(var p = 0 ; p < l_length ; p++){\
1256
     barcolor[p] = stroke_color;\
1257
    };\
1258
   };\
1259
  };\
1260
  for(var p = 0; p < l_length; p++){\
1261
   ctx.fillStyle = barcolor[p];\
1262
   txt = legend%d[p];\
1263
   txt_size = ctx.measureText(txt).width;\
1264
   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
1265
   y_offset = parseInt(y_offset + 1.5*font_size);\
1266
  };\
1267
 };\
1268
 if( typeof(xaxislabel) !== 'undefined' ){\
1269
   ctx.fillStyle = \'#000000\';\
1270
   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
1271
   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
1272
 };\
1273
 if( typeof(yaxislabel) !== 'undefined'){\
1274
   ctx.save();\
1275
   ctx.fillStyle = \'#000000\';\
1276
   var txt_size = ctx.measureText(yaxislabel).width;\
1277
   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
1278
   ctx.rotate(-0.5*Math.PI);\
1279
   ctx.fillText(yaxislabel,0,0);\
1280
   ctx.restore();\
1281
 };\
1282
};",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);
18553 bpr 1283
        break;
1284
      case DRAW_NUMBERLINE:
15111 schaersvoo 1285
fprintf(js_include_file,"\n/* draw numberline */\
1286
var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
1287
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
1288
 var ctx = obj.getContext(\"2d\");\
1289
 ctx.lineWidth = linewidth || 1;\
1290
 ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
15313 schaersvoo 1291
 ctx.font = fontfamily || 'Arial 12px';\
15111 schaersvoo 1292
 var fontsize = parseInt(ctx.font);\
1293
 ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
1294
 x1 = x2px(x1);\
1295
 x0 = x2px(x0);\
1296
 y0 = y2px(y0);\
1297
 y1 = y2px(y1);\
1298
 var sub_devision = -1;\
1299
 if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
1300
 var ybase1 = parseInt( y0 + fontsize + 2 );\
1301
 var ybase2 = parseInt( ybase1 + fontsize + 2 );\
1302
 var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
1303
 var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
1304
 xmajor = x2px(xmajor) - x2px(0);\
1305
 var i;var len;var p;\
1306
 xminor = xmajor / xminor;\
1307
 ctx.beginPath();\
1308
 for(p = x0 ; p < x1 ; p = p + xmajor){\
1309
  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
1310
  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
1311
   ctx.moveTo(s,y0);\
1312
   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
1313
   i++;\
1314
  };\
1315
 };\
1316
 ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
1317
 ctx.closePath();\
1318
 ctx.stroke();\
1319
 if( use_axis_numbering >-1 ){\
1320
  var str = x_strings[use_axis_numbering];\
1321
  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1322
  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
1323
  ctx.beginPath();\
1324
  if( x_strings_up[use_axis_numbering] == null){\
1325
   for(var p = 0 ; p < len ; p = p+2){\
1326
    var x_nums = x2px(eval(str[p]));\
1327
    var x_text = str[p+1];\
1328
    corr = ctx.measureText(x_text).width;\
1329
    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1330
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
1331
   };\
16844 bpr 1332
  } else {\
15111 schaersvoo 1333
   for(var p = 0 ; p < len ; p = p+2){\
1334
    x_nums = x2px(eval(str[p]));\
1335
    x_text = str[p+1];\
1336
    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
1337
    ctx.save();\
1338
    ctx.translate(x_nums+0.5*fontsize, corr);\
1339
    ctx.rotate(-1.5708);\
1340
    ctx.fillText(x_text,0,0);\
1341
    ctx.restore();\
1342
   };\
1343
  }\
16844 bpr 1344
 } else {\
15111 schaersvoo 1345
  var corr;var num;var flipflop = 0;var off = ybase1;\
1346
  var prec = parseInt(Math.log(precision)/Math.log(10));\
1347
  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
1348
   num = (px2x(p)).toFixed(prec);\
1349
   corr = ctx.measureText(num).width;\
1350
   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1351
   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
1352
  };\
1353
 };\
1354
};",canvas_root_id);
18553 bpr 1355
        break;
1356
      case DRAW_GRID:/* not used for userdraw */
1357
        fprintf(js_include_file,"\n/* draw grid */\
15111 schaersvoo 1358
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){\
1359
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);};\
1360
var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
1361
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
1362
ctx.save();\
1363
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1364
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
1365
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
1366
ctx.font = font_family;\
1367
var barcolor = new Array();\
1368
var xstep = xsize*xmajor/(xmax - xmin);\
1369
var ystep = ysize*ymajor/(ymax - ymin);\
1370
var x2step = xstep / xminor;\
1371
var y2step = ystep / yminor;\
1372
var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
1373
if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
1374
if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
1375
ctx.beginPath();\
1376
ctx.lineWidth = line_width;\
1377
ctx.strokeStyle = stroke_color;\
1378
for(var p = zero_x ; p < xsize; p = p + xstep){\
1379
 ctx.moveTo(p,0);\
1380
 ctx.lineTo(p,ysize);\
1381
};\
1382
for(var p = zero_x ; p > 0; p = p - xstep){\
1383
 ctx.moveTo(p,0);\
1384
 ctx.lineTo(p,ysize);\
1385
};\
1386
for(var p = zero_y ; p < ysize; p = p + ystep){\
1387
 ctx.moveTo(0,p);\
1388
 ctx.lineTo(xsize,p);\
1389
};\
1390
for(var p = zero_y ; p > 0; p = p - ystep){\
1391
 ctx.moveTo(0,p);\
1392
 ctx.lineTo(xsize,p);\
1393
};\
1394
if( typeof(xaxislabel) !== 'undefined' ){\
1395
 ctx.save();\
15313 schaersvoo 1396
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1397
 var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
1398
 ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
1399
 ctx.restore();\
1400
};\
1401
if( typeof(yaxislabel) !== 'undefined' ){\
1402
 ctx.save();\
15313 schaersvoo 1403
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1404
 var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
1405
 ctx.translate(zero_x+tics_length + font_size,corr);\
1406
 ctx.rotate(-0.5*Math.PI);\
1407
 ctx.fillText(yaxislabel,0,0);\
1408
 ctx.restore();\
1409
};\
1410
ctx.stroke();\
1411
ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
1412
 
18553 bpr 1413
        if( use_axis == 1 ){
1414
          fprintf(js_include_file,"\
15111 schaersvoo 1415
 ctx.save();\
1416
 ctx.beginPath();\
1417
 ctx.strokeStyle = stroke_color;\
1418
 ctx.lineWidth = 0.6*line_width;\
1419
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1420
  ctx.moveTo(p,0);\
1421
  ctx.lineTo(p,ysize);\
1422
 };\
1423
 for(var p = zero_x ; p > 0; p = p - x2step){\
1424
  ctx.moveTo(p,0);\
1425
  ctx.lineTo(p,ysize);\
1426
 };\
1427
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1428
  ctx.moveTo(0,p);\
1429
  ctx.lineTo(xsize,p);\
1430
 };\
1431
 for(var p = zero_y ; p > 0; p = p - y2step){\
1432
  ctx.moveTo(0,p);\
1433
  ctx.lineTo(xsize,p);\
1434
 };\
1435
 ctx.stroke();\
1436
 ctx.closePath();\
1437
 ctx.beginPath();\
1438
 ctx.lineWidth = 2*line_width;\
1439
 ctx.strokeStyle = axis_color;\
1440
 ctx.moveTo(0,zero_y);\
1441
 ctx.lineTo(xsize,zero_y);\
1442
 ctx.moveTo(zero_x,0);\
1443
 ctx.lineTo(zero_x,ysize);\
1444
 ctx.stroke();\
1445
 ctx.closePath();\
1446
 ctx.lineWidth = line_width+0.5;\
1447
 ctx.beginPath();\
1448
 for(var p = zero_x ; p < xsize; p = p + xstep){\
1449
  ctx.moveTo(p,zero_y-tics_length);\
1450
  ctx.lineTo(p,zero_y+tics_length);\
1451
 };\
1452
 for(var p = zero_x ; p > 0; p = p - xstep){\
1453
  ctx.moveTo(p,zero_y-tics_length);\
1454
  ctx.lineTo(p,zero_y+tics_length);\
1455
 };\
1456
 for(var p = zero_y ; p < ysize; p = p + ystep){\
1457
  ctx.moveTo(zero_x-tics_length,p);\
1458
  ctx.lineTo(zero_x+tics_length,p);\
1459
 };\
1460
 for(var p = zero_y ; p > 0; p = p - ystep){\
1461
  ctx.moveTo(zero_x-tics_length,p);\
1462
  ctx.lineTo(zero_x+tics_length,p);\
1463
 };\
1464
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1465
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1466
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1467
 };\
1468
 for(var p = zero_x ; p > 0; p = p - x2step){\
1469
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1470
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1471
 };\
1472
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1473
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1474
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1475
 };\
1476
 for(var p = zero_y ; p > 0; p = p - y2step){\
1477
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1478
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1479
 };\
1480
 ctx.stroke();\
1481
 ctx.closePath();\
1482
 ctx.restore();");
18553 bpr 1483
        }
1484
        if( use_axis_numbering != -1 ){
1485
          fprintf(js_include_file,"\
15111 schaersvoo 1486
 ctx.save();\
1487
 ctx.fillColor = axis_color;\
1488
 ctx.strokeStyle = axis_color;\
1489
 ctx.lineWidth = 2*line_width;\
1490
 ctx.font = font_family;\
1491
 var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
1492
 if( x_strings[use_axis_numbering] != null ){\
1493
  var str = x_strings[use_axis_numbering];\
1494
  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1495
  ctx.beginPath();\
1496
  if( x_strings_up[use_axis_numbering] == null){\
1497
   for(var p = 0 ; p < len ; p = p+2){\
1498
    var x_nums = x2px(eval(str[p]));\
1499
    var x_text = str[p+1];\
1500
    corr = ctx.measureText(x_text).width;\
1501
    skip = 1.2*corr/xstep;\
1502
    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
1503
    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
1504
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
1505
    ctx.moveTo(x_nums,zero_y - tics_length);\
1506
    ctx.lineTo(x_nums,zero_y + tics_length);\
1507
   };\
16844 bpr 1508
  } else {\
15111 schaersvoo 1509
   for(var p = 0 ; p < len ; p = p+2){\
1510
    var x_nums = x2px(eval(str[p]));\
1511
    var x_text = str[p+1];\
1512
    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
1513
    if( corr > ysize ){corr = ysize;};\
1514
    ctx.save();\
1515
    ctx.translate(x_nums+0.25*font_size, corr);\
1516
    ctx.rotate(-1.5708);\
1517
    ctx.fillText(x_text,0,0);\
1518
    ctx.restore();\
1519
    ctx.moveTo(x_nums,zero_y - tics_length);\
1520
    ctx.lineTo(x_nums,zero_y + tics_length);\
1521
   };\
1522
  };\
1523
  ctx.closePath();\
16844 bpr 1524
 } else {\
15111 schaersvoo 1525
  skip = 1;cnt = px2x(zero_x);\
1526
  prec = Math.log(precision)/(Math.log(10));\
1527
  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
1528
  for( var p = zero_x ; p < xsize ; p = p+xstep){\
1529
   if(skip == 0 ){\
1530
    disp_cnt = cnt.toFixed(prec);\
1531
    corr = ctx.measureText(disp_cnt).width;\
1532
    skip = parseInt(1.2*corr/xstep);\
1533
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1534
   } else {\
15111 schaersvoo 1535
    skip--;\
1536
   };\
1537
   cnt = cnt + xmajor;\
1538
  };\
1539
  cnt = px2x(zero_x);skip = 1;\
1540
  for( var p = zero_x ; p > 0 ; p = p-xstep){\
1541
   if(skip == 0 ){\
1542
    disp_cnt = cnt.toFixed(prec);\
1543
    corr = ctx.measureText(disp_cnt).width;\
1544
    skip = parseInt(1.2*corr/xstep);\
1545
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1546
   } else {\
15111 schaersvoo 1547
    skip--;\
1548
   };\
1549
   cnt = cnt - xmajor;\
1550
  };\
1551
 };\
1552
 if( y_strings != null ){\
1553
  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
1554
  ctx.beginPath();\
1555
  for(var p = 0 ; p < len ; p = p+2){\
1556
   var y_nums = y2px(eval(y_strings[p]));\
1557
   var y_text = y_strings[p+1];\
1558
   corr = 2 + tics_length + ctx.measureText(y_text).width;\
1559
   if( corr > zero_x){corr = parseInt(zero_x+2); }\
1560
   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
1561
   ctx.moveTo(zero_x - tics_length,y_nums);\
1562
   ctx.lineTo(zero_x + tics_length,y_nums);\
1563
  };\
1564
  ctx.closePath();\
16844 bpr 1565
 } else {\
15111 schaersvoo 1566
  if(f_x == 1){ corr = 1.5*tics_length; }\
1567
  cnt = px2y(zero_y);skip = 1;\
1568
  for( var p = zero_y ; p < ysize ; p = p+ystep){\
1569
   if(skip == 0 ){\
1570
    skip = parseInt(1.4*font_size/ystep);\
1571
    disp_cnt = cnt.toFixed(prec);\
1572
    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1573
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1574
   } else {\
15111 schaersvoo 1575
    skip--;\
1576
   };\
1577
   cnt = cnt - ymajor;\
1578
  };\
1579
  corr = 0;cnt = px2y(zero_y);skip = 1;\
1580
  if(f_x == 1){ corr = 1.5*tics_length; }\
1581
  for( var p = zero_y ; p > 0 ; p = p-ystep){\
1582
   if(skip == 0 ){\
1583
    skip = parseInt(1.4*font_size/ystep);\
1584
    disp_cnt = cnt.toFixed(prec);\
1585
    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1586
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1587
   } else {\
15111 schaersvoo 1588
    skip--;\
1589
   };\
1590
   cnt = cnt + ymajor;\
1591
  };\
1592
 };\
1593
 ctx.stroke();\
1594
 ctx.restore();");
18553 bpr 1595
        }
1596
        if( legend_cnt != -1 ){
1597
          fprintf(js_include_file,"ctx.save();\
15111 schaersvoo 1598
 ctx.globalAlpha = 1.0;\
15313 schaersvoo 1599
 ctx.font = \"bold \"+font_size+\"px Arial\";\
15111 schaersvoo 1600
 var y_offset = 2*font_size;\
1601
 var txt;var txt_size;\
1602
 var x_offset = xsize - 2*font_size;\
1603
 var l_length = legend0.length;\
1604
 if( typeof(legendcolors0) !== 'undefined' ){\
1605
  for(var p = 0 ; p < l_length ; p++){\
1606
    barcolor[p] = legendcolors0[p];\
1607
  };\
16844 bpr 1608
 } else {\
15111 schaersvoo 1609
  if( barcolor.length == 0 ){\
1610
   for(var p = 0 ; p < l_length ; p++){\
1611
    barcolor[p] = stroke_color;\
1612
   };\
1613
  };\
1614
 };\
1615
 for(var p = 0; p < l_length; p++){\
1616
  ctx.fillStyle = barcolor[p];\
1617
  txt = legend0[p];\
1618
  txt_size = ctx.measureText(txt).width;\
1619
  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
1620
  y_offset = parseInt(y_offset + 1.5*font_size);\
1621
 };\
1622
 ctx.restore();");
18553 bpr 1623
        }
1624
        if( barchart_cnt != 0 ){
1625
          fprintf(js_include_file,"ctx.save();\
15111 schaersvoo 1626
 var num_barcharts = 0;\
1627
 var bar_name = eval('barchart_0');\
1628
 while( typeof(bar_name) !== 'undefined' ){\
1629
    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
1630
 };\
1631
 var bar_width = parseInt(0.8*x2step/(num_barcharts));\
1632
 for(var i=0 ; i< num_barcharts ; i++){\
1633
  bar_name = eval('barchart_'+i);\
1634
  var bar_x = new Array();\
1635
  var bar_y = new Array();\
1636
  var lb = bar_name.length;\
1637
  var idx = 0;\
1638
  var dx = parseInt(0.5*i*bar_width);\
1639
  for( var p = 0 ; p < lb ; p = p + 3 ){\
1640
   bar_x[idx] = x2px(bar_name[p]);\
1641
   bar_y[idx] = y2px(bar_name[p+1]);\
1642
   barcolor[idx] = bar_name[p+2];\
1643
   idx++;\
1644
  };\
1645
  ctx.globalAlpha = fill_opacity;\
1646
  for( var p = 0; p < idx ; p++ ){\
1647
   ctx.beginPath();\
1648
   ctx.strokeStyle = barcolor[p];\
1649
   ctx.fillStyle = barcolor[p];\
1650
   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
1651
   ctx.fill();\
1652
   ctx.stroke();\
1653
   ctx.closePath();\
1654
  };\
1655
 };\
1656
 ctx.restore();");
18553 bpr 1657
        }
1658
        if( linegraph_cnt != 0 ){
1659
          fprintf(js_include_file,"ctx.save();\
15111 schaersvoo 1660
 ctx.globalAlpha = 1.0;\
1661
 var i = 0;\
1662
 var line_name = eval('linegraph_'+i);\
1663
 while ( typeof(line_name) !== 'undefined' ){\
1664
  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
1665
  ctx.lineWidth = parseInt(line_name[1]);\
1666
  if(line_name[2] == \"1\"){\
1667
   var d1 = parseInt(line_name[3]);\
1668
   var d2 = parseInt(line_name[4]);\
1669
   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
16844 bpr 1670
  } else {\
15111 schaersvoo 1671
  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
1672
  };\
1673
  var data_x = new Array();var data_y = new Array();\
1674
  var lb = line_name.length;var idx = 0;\
1675
  for( var p = 5 ; p < lb ; p = p + 2 ){\
1676
   data_x[idx] = x2px(line_name[p]);\
1677
   data_y[idx] = y2px(line_name[p+1]);\
1678
   idx++;\
1679
  };\
1680
  for( var p = 0; p < idx ; p++){\
1681
   ctx.beginPath();\
1682
   ctx.moveTo(data_x[p],data_y[p]);\
1683
   ctx.lineTo(data_x[p+1],data_y[p+1]);\
1684
   ctx.stroke();\
1685
   ctx.closePath();\
1686
  };\
1687
  i++;\
1688
  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
1689
 };\
1690
 ctx.restore();return;");
18553 bpr 1691
        }
1692
        fprintf(js_include_file,"};");
1693
        break;
1694
      case DRAW_PIECHART:
1695
        fprintf(js_include_file,"\n/* draw piecharts */\
15111 schaersvoo 1696
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1697
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
1698
 var obj;\
1699
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1700
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1701
 } else {\
15111 schaersvoo 1702
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1703
 };\
1704
 var center_text = use_offset || 0;\
1705
 var ld = data_color_list.length;\
1706
 var sum = 0;\
1707
 var idx = 0;\
1708
 var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
1709
 var colors = new Array();\
1710
 var data = new Array();\
1711
 for(var p = 0;p < ld; p = p + 2){\
1712
  data[idx] = parseFloat(data_color_list[p]);\
1713
  sum = sum + data[idx];\
1714
  colors[idx] = data_color_list[p+1];\
1715
  idx++;\
1716
 };\
1717
 if( use_filled > 1 ){\
1718
  var i = 2;\
1719
  for(var p = 0 ;  p < idx ; p++){\
1720
   if(i > 5 ){ i = 2; };\
1721
   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
1722
  };\
1723
 };\
1724
 var ctx = obj.getContext(\"2d\");\
1725
 ctx.save();\
1726
 var angle;\
1727
 var angle_end = 0;\
1728
 var offset = Math.PI / 2;\
1729
 ctx.globalAlpha = fill_opacity;\
1730
 var angles = [];\
1731
 for(var p=0; p < idx; p++){\
1732
  ctx.beginPath();\
1733
  ctx.moveTo(x_center,y_center);\
1734
  angle = Math.PI * (2 * data[p] / sum);\
1735
  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
1736
  ctx.lineTo(x_center, y_center);\
1737
  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
1738
  ctx.fill();\
1739
  ctx.closePath();\
1740
  angles.push(angle_end + angle - offset);\
1741
  angle_end  = angle_end + angle;\
1742
 };\
1743
 if(typeof(legend0) !== 'undefined'){\
1744
  var legenda = eval(\"legend\"+legend_cnt);\
1745
  ctx.globalAlpha = 1.0;\
1746
  ctx.font = font_family;\
1747
  var y_offset = font_size;\
1748
  var x_offset = 0;\
1749
  var txt;var txt_size;\
1750
  for(var p = 0; p < idx; p++){\
1751
   ctx.fillStyle = colors[p];\
1752
   txt = legenda[p];\
1753
   txt_size = ctx.measureText(txt).width + 2;\
1754
   if(center_text == 4){\
1755
    ctx.save();\
1756
    ctx.translate(x_center, y_center);\
1757
    ctx.rotate(angles[p]);\
1758
    ctx.fillText(txt,radius-txt_size,0);\
1759
    ctx.restore();\
16844 bpr 1760
   } else {\
15111 schaersvoo 1761
    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
1762
    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
1763
    y_offset = parseInt(y_offset + 1.5*font_size);\
1764
   };\
1765
  };\
1766
 };\
1767
 ctx.restore();\
1768
};",canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 1769
        break;
1770
      case DRAW_JSBOXPLOT:
1771
        fprintf(js_include_file,"\n/* draw jsboxplots */\
15111 schaersvoo 1772
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1773
function statistics(data){\
1774
 var len = data.length;\
1775
 var min = 10000000;\
1776
 var max = -10000000;\
1777
 var sum = 0;var d;\
1778
 for(var i=0;i<len;i++){\
1779
  d = data[i];\
1780
  if(d < min){min = d;}else{if(d > max){max = d;};};\
1781
  sum+= parseFloat(data[i]);\
1782
 };\
1783
 var mean = parseFloat(sum/len);\
1784
 var variance = 0;\
1785
 for(var i=0;i<len;i++){\
1786
  d = data[i];\
1787
  variance += (d - mean)*(d - mean);\
1788
 };\
1789
 variance = parseFloat(variance / len);\
1790
 var std = Math.sqrt(variance);\
1791
 data.sort(function(a,b){return a - b;});\
1792
 var median;var Q1;var Q3;\
1793
 var half = Math.floor(0.5*len);\
1794
 var q1 = Math.floor(0.25*len);\
1795
 var q3 = Math.floor(0.75*len);\
1796
 var half = Math.floor(0.5*len);\
1797
 if(len %%2 == 1){\
1798
  median = data[half];\
1799
  Q1 = data[q1];\
1800
  Q3 = data[q3];\
16844 bpr 1801
 } else {\
15111 schaersvoo 1802
  median = (data[half - 1] + data[half] )/2;\
1803
  Q1 = (data[q1 - 1] + data[q1] )/2;\
1804
  Q3 = (data[q3 - 1] + data[q3] )/2;\
1805
 };\
1806
 return [min,Q1,median,Q3,max];\
1807
};");
18553 bpr 1808
        break;
1809
      case DRAW_BOXPLOT:
1810
        fprintf(js_include_file,"\n/* draw boxplots */\
15111 schaersvoo 1811
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1812
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){\
1813
 var obj;\
1814
 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);};\
1815
 var ctx = obj.getContext(\"2d\");\
1816
 ctx.clearRect(0,0,xsize,ysize);\
1817
 ctx.save();\
1818
 ctx.lineWidth = line_width;\
1819
 ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1820
 var colors = new Array(2);\
1821
 colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
1822
 colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1823
 if( use_filled > 1 ){\
1824
   var pat = create_Pattern(0,0,3,colors[0]);\
1825
   all_fill_patterns[0] = pat;\
1826
   pat = create_Pattern(0,0,4,colors[1]);\
1827
   all_fill_patterns[1] = pat;\
1828
 };\
1829
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
1830
 var hh = 0.25*hw;\
1831
 switch(boxplot_source){\
1832
  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
1833
  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
1834
  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
1835
  default: break;\
1836
 };\
1837
 var min,Q1,median,Q3,max;\
1838
 if(xy == 1 ){\
1839
  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
1840
  hh = Math.abs(y2px(hh) - y2px(ystart));\
1841
  hw = Math.abs(y2px(hw) - y2px(ystart));\
1842
  cxy = y2px(cxy);\
1843
  ctx.beginPath();\
1844
  ctx.moveTo(min,cxy);\
1845
  ctx.lineTo(Q1,cxy);\
1846
  ctx.moveTo(Q3,cxy);\
1847
  ctx.lineTo(max,cxy);\
1848
  ctx.moveTo(min,cxy+hh);\
1849
  ctx.lineTo(min,cxy-hh);\
1850
  ctx.moveTo(max,cxy+hh);\
1851
  ctx.lineTo(max,cxy-hh);\
1852
  ctx.closePath();\
1853
  ctx.stroke();\
1854
  ctx.beginPath();\
1855
  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
1856
  ctx.closePath();\
1857
  if( use_filled != 0 ){\
1858
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1859
   ctx.fill();\
1860
  };\
1861
  ctx.stroke();\
1862
  ctx.beginPath();\
1863
  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
1864
  ctx.closePath();\
1865
  if( use_filled != 0 ){\
1866
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1867
   ctx.fill();\
1868
  };\
1869
  ctx.stroke();\
1870
 }else{\
1871
  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
1872
  hh = Math.abs(x2px(hh) - x2px(xstart));\
1873
  hw = Math.abs(x2px(hw) - x2px(xstart));\
1874
  cxy = x2px(cxy);\
1875
  ctx.beginPath();\
1876
  ctx.moveTo(cxy,min);\
1877
  ctx.lineTo(cxy,Q1);\
1878
  ctx.moveTo(cxy,Q3);\
1879
  ctx.lineTo(cxy,max);\
1880
  ctx.moveTo(cxy + hh,min);\
1881
  ctx.lineTo(cxy - hh,min);\
1882
  ctx.moveTo(cxy + hh,max);\
1883
  ctx.lineTo(cxy - hh,max);\
1884
  ctx.closePath;\
1885
  ctx.stroke();\
1886
  ctx.beginPath();\
1887
  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
1888
  ctx.closePath();\
1889
  if( use_filled != 0 ){\
1890
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1891
   ctx.fill();\
1892
  };\
1893
  ctx.stroke();\
1894
  ctx.beginPath();\
1895
  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
1896
  ctx.closePath();\
1897
  if( use_filled != 0 ){\
1898
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1899
   ctx.fill();\
1900
  };\
1901
  ctx.stroke();\
1902
 };\
1903
 ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 1904
        break;
1905
      case DRAW_CENTERSTRING:
1906
        fprintf(js_include_file,"\n/* draw centerstring */\
15111 schaersvoo 1907
var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
1908
 var obj;\
1909
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1910
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1911
 } else {\
15111 schaersvoo 1912
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1913
 };\
1914
 var ctx = obj.getContext(\"2d\");\
1915
 ctx.save();\
1916
 ctx.clearRect(0,0,xsize,ysize);\
1917
 ctx.font = font_family;\
1918
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1919
 var stringwidth = ctx.measureText(text).width;\
1920
 var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
1921
 ctx.fillText(text,x,y2px(y));\
1922
 ctx.restore();\
1923
return;\
1924
};",canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 1925
        break;
1926
      case DRAW_TEXTS:
1927
        fprintf(js_include_file,"\n/* draw text */\
15111 schaersvoo 1928
var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
1929
 var obj;\
1930
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1931
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1932
 } else {\
15111 schaersvoo 1933
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1934
 };\
1935
 var ctx = obj.getContext(\"2d\");\
1936
 if( font_family != 'null' ){\
1937
  ctx.font = font_family;\
16844 bpr 1938
 } else {\
15313 schaersvoo 1939
  ctx.font = font_size+'px Arial';\
15111 schaersvoo 1940
 };\
1941
 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;};};\
1942
 if(angle2 == 0 && angle != 0){\
1943
  ctx.save();\
1944
  if(use_rotate == 1 ){\
1945
  ctx.rotate(angle*Math.PI/180);};\
1946
  ctx.restore();\
1947
 };\
1948
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1949
 if(angle2 != 0){\
1950
  ctx.save();\
1951
  ctx.translate(x,y);\
1952
  ctx.rotate((360-angle2)*(Math.PI / 180));\
1953
  ctx.fillText(text,0,0);\
1954
  ctx.restore();\
16844 bpr 1955
 } else {\
15111 schaersvoo 1956
  ctx.fillText(text,x,y);\
1957
 };\
1958
 return;\
1959
};",canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 1960
        break;
1961
      case DRAW_INPUTS:
15111 schaersvoo 1962
/* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
18553 bpr 1963
        fprintf(js_include_file,"\n/* draw static input fields */\
15111 schaersvoo 1964
if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
1965
var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
1966
var input = document.createElement(\"input\");\
1967
input.setAttribute(\"id\",\"canvas_input\"+num);\
1968
input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
1969
if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
1970
input.setAttribute(\"size\",size);\
1971
input.setAttribute(\"value\",value);\
1972
input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
1973
if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
1974
canvas_div.appendChild(input);\
1975
if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
1976
input_cnt++;\
1977
};\
1978
function center_input(id,x,y,css_class){\
1979
 var inp = document.getElementById(id);\
1980
 var pos = inp.getBoundingClientRect();\
1981
 var center_x = parseInt(x - 0.5*(pos.width));\
1982
 var center_y = parseInt(y - 0.5*(pos.height));\
1983
 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;\");}\
1984
 catch(e){console.log('error :'+e);return;};\
1985
};");
18553 bpr 1986
        break;
1987
      case DRAW_TEXTAREAS:
1988
        fprintf(js_include_file,"\n/* draw text area inputfields */\
15111 schaersvoo 1989
var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
1990
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
1991
var textarea = document.createElement(\"textarea\");\
1992
textarea.setAttribute(\"id\",\"canvas_input\"+num);\
1993
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
1994
textarea.setAttribute(\"cols\",cols);\
1995
textarea.setAttribute(\"rows\",rows);\
1996
textarea.value = value;\
1997
if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
1998
canvas_div.appendChild(textarea);};");
18553 bpr 1999
        break;
2000
      case DRAW_PIXELS:
2001
        fprintf(js_include_file,"\n/* draw pixel */\
15111 schaersvoo 2002
var draw_setpixel = function(x,y,color,opacity,pixelsize){\
2003
 var idx = 2000+Math.ceil(1000*(Math.random()));\
2004
 var canvas = create_canvas%d(idx,xsize,ysize);\
2005
 var d = 0.5*pixelsize;\
2006
 var ctx = canvas.getContext(\"2d\");\
2007
 if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
2008
 ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
2009
 ctx.clearRect(0,0,xsize,ysize);\
2010
 for(var p=0; p<x.length;p++){\
2011
  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
2012
 };\
2013
 ctx.fill();ctx.stroke();\
2014
};",canvas_root_id);
18553 bpr 2015
        break;
2016
      case DRAW_CLOCK:
2017
        fprintf(js_include_file,"\n/* command clock */\
15111 schaersvoo 2018
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
2019
var clock_ctx = clock_canvas.getContext(\"2d\");\
2020
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
2021
 clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
2022
 clock_ctx.save();\
2023
 clock_ctx.globalAlpha = clock_bg_opacity;\
2024
 this.type = type || 0;\
2025
 this.interaction = interaction || 0;\
2026
 this.H = H;\
2027
 this.M = M;\
2028
 this.S = S;\
2029
 this.xc = xc || xsize/2;\
2030
 this.yc = yc || ysize/2;\
2031
 this.radius = radius || xsize/4;\
2032
 var font_size = parseInt(0.2*this.radius);\
2033
 this.H_color = h_color || \"black\";\
2034
 this.M_color = m_color || \"black\";\
2035
 this.S_color = s_color || \"black\";\
2036
 this.fg_color = fg_color || \"black\";\
2037
 this.bg_color = bg_color || \"white\";\
2038
 clock_ctx.translate(this.xc,this.yc);\
2039
 clock_ctx.beginPath();\
2040
 clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
2041
 clock_ctx.fillStyle = this.bg_color;\
2042
 clock_ctx.fill();\
2043
 clock_ctx.closePath();\
2044
 clock_ctx.beginPath();\
2045
 clock_ctx.font = font_size+\"px Arial\";\
2046
 clock_ctx.fillStyle = this.fg_color;\
2047
 clock_ctx.textAlign = \"center\";\
2048
 clock_ctx.textBaseline = 'middle';\
2049
 var angle;var x1,y1,x2,y2;\
2050
 var angle_cos;var angle_sin;\
2051
 clock_ctx.globalAlpha = clock_fg_opacity;\
2052
 switch(type){\
2053
 case 0:clock_ctx.beginPath();\
2054
 for(var p = 1; p <= 12 ; p++){\
2055
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2056
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2057
  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2058
  clock_ctx.moveTo(x1,y1);\
2059
  clock_ctx.lineTo(x2,y2);\
2060
 };\
2061
 for(var p = 1; p <= 60 ; p++){\
2062
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2063
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2064
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2065
  clock_ctx.moveTo(x1,y1);\
2066
  clock_ctx.lineTo(x2,y2);\
2067
 };\
2068
 clock_ctx.closePath();\
2069
 clock_ctx.stroke();\
2070
 break;\
2071
 case 1:\
2072
 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;\
2073
 case 2:\
2074
 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);};\
2075
 clock_ctx.beginPath();\
2076
 for(var p = 1; p <= 12 ; p++){\
2077
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2078
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2079
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2080
  clock_ctx.moveTo(x1,y1);\
2081
  clock_ctx.lineTo(x2,y2);\
2082
 };\
2083
 for(var p = 1; p <= 60 ; p++){\
2084
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2085
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2086
  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2087
  clock_ctx.moveTo(x1,y1);\
2088
  clock_ctx.lineTo(x2,y2);\
2089
 };\
2090
 clock_ctx.closePath();\
2091
 clock_ctx.stroke();\
2092
 break;\
2093
 };\
2094
 angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
2095
 clock_ctx.rotate(angle);\
2096
 clock_ctx.beginPath();\
2097
 clock_ctx.moveTo(-3, -2);\
2098
 clock_ctx.lineTo(-3, 2);\
2099
 clock_ctx.lineTo(this.radius * 0.6, 1);\
2100
 clock_ctx.lineTo(this.radius  * 0.6, -1);\
2101
 clock_ctx.fillStyle = this.H_color;\
2102
 clock_ctx.fill();\
2103
 clock_ctx.rotate(-angle);\
2104
 angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
2105
 clock_ctx.rotate(angle);\
2106
 clock_ctx.beginPath();\
2107
 clock_ctx.moveTo(-3, -2);\
2108
 clock_ctx.lineTo(-3, 2);\
2109
 clock_ctx.lineTo(this.radius  * 0.8, 1);\
2110
 clock_ctx.lineTo(this.radius  * 0.8, -1);\
2111
 clock_ctx.fillStyle = this.M_color;\
2112
 clock_ctx.fill();\
2113
 clock_ctx.rotate(-angle);\
2114
 angle = (this.S - 15) * 2 * Math.PI / 60;\
2115
 clock_ctx.rotate(angle);\
2116
 clock_ctx.beginPath();\
2117
 clock_ctx.moveTo(0,0);\
2118
 clock_ctx.lineTo(this.radius  * 0.9, 1);\
2119
 clock_ctx.lineTo(this.radius  * 0.9, -1);\
2120
 clock_ctx.strokeStyle = this.S_color;\
2121
 clock_ctx.stroke();\
2122
 clock_ctx.restore();\
2123
};",canvas_root_id,CLOCK_CANVAS);
18553 bpr 2124
        break;
2125
      case DRAW_LATTICE:
2126
        fprintf(js_include_file,"\n/* draw lattice */\
15111 schaersvoo 2127
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){\
2128
 var obj;\
2129
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2130
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2131
 } else {\
15111 schaersvoo 2132
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2133
 };\
2134
 var ctx = obj.getContext(\"2d\");\
2135
 ctx.save();\
2136
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
2137
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
2138
 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;};\
2139
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2140
 var radius = line_width;\
2141
 var x = 0;\
2142
 var y = 0;\
2143
 var x_step_px = xsize/(xmax-xmin);\
2144
 var y_step_px = ysize/(ymax-ymin);\
2145
 var xv1 = dx1*x_step_px;\
2146
 var yv1 = dy1*y_step_px;\
2147
 var xv2 = dx2*x_step_px;\
2148
 var yv2 = dy2*y_step_px;\
2149
 for(var p = 0; p < n1 ;p++){\
2150
  x = p*xv1 + x0;\
2151
  y = p*yv1 + y0;\
2152
  for(var c = 0; c < n2 ; c++){\
2153
   ctx.beginPath();\
2154
   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
2155
   ctx.fill();\
2156
   ctx.stroke();\
2157
   ctx.closePath();\
2158
  };\
2159
 };\
2160
 ctx.restore();\
2161
 return;\
2162
};",canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 2163
        break;
2164
      case DRAW_XYLOGSCALE:
2165
        fprintf(js_include_file,"\n/* draw xylogscale */\
15111 schaersvoo 2166
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){\
2167
 var obj;\
2168
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2169
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2170
 } else {\
15111 schaersvoo 2171
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2172
 };\
2173
 var ctx = obj.getContext(\"2d\");\
2174
 ctx.clearRect(0,0,xsize,ysize);\
2175
 ctx.save();\
2176
 var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
2177
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2178
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2179
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2180
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2181
 if(use_axis_numbering != -1){\
2182
  ctx.font = font_family;\
2183
  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
2184
  ymarge = parseInt(1.5*font_size);\
2185
  ctx.save();\
2186
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2187
  ctx.rect(0,0,xmarge,ysize);\
2188
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2189
  ctx.fill();\
2190
  ctx.restore();\
2191
 }else{xmarge = 0;ymarge = 0;};\
2192
 if( typeof(xaxislabel) !== 'undefined' ){\
2193
  ctx.save();\
15313 schaersvoo 2194
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2195
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2196
  corr =  ctx.measureText(xaxislabel).width;\
2197
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2198
  ctx.restore();\
2199
 };\
2200
 if( typeof(yaxislabel) !== 'undefined' ){\
2201
  ctx.save();\
15313 schaersvoo 2202
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2203
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2204
  corr = ctx.measureText(yaxislabel).width;\
2205
  ctx.translate(xmarge+font_size,corr+font_size);\
2206
  ctx.rotate(-0.5*Math.PI);\
2207
  ctx.fillText(yaxislabel,0,0);\
2208
  ctx.restore();\
2209
 };\
2210
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2211
 ctx.lineWidth = line_width;\
2212
 for(var p = x_min; p <= x_max ; p++){\
2213
  num = Math.pow(xlogbase,p);\
2214
  for(var i = 1 ; i < xlogbase ; i++){\
2215
   x_e = x2px(i*num);\
2216
   if( i == 1 ){\
2217
    ctx.lineWidth = line_width;\
2218
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2219
    if( use_axis_numbering != -1 && p > x_min){\
2220
      xtxt = xlogbase+'^'+p.toFixed(0);\
2221
      corr = 0.5*(ctx.measureText(xtxt).width);\
2222
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2223
    };\
2224
   }else{\
2225
    ctx.lineWidth = 0.2*line_width;\
2226
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2227
   };\
2228
   if( x_e >= xmarge ){\
2229
    ctx.beginPath();\
2230
    ctx.moveTo(x_e,0);\
2231
    ctx.lineTo(x_e,ysize - ymarge);\
2232
    ctx.stroke();\
2233
    ctx.closePath();\
2234
   };\
2235
  };\
2236
 };\
2237
 for(var p = y_min; p <= y_max ; p++){\
2238
  num = Math.pow(ylogbase,p);\
2239
  for(var i = 1 ; i < ylogbase ; i++){\
2240
   y_e = y2px(i*num);\
2241
   if( i == 1 ){\
2242
    ctx.lineWidth = line_width;\
2243
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2244
    if( use_axis_numbering != -1 && p > y_min){\
2245
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2246
    };\
2247
   }else{\
2248
    ctx.lineWidth = 0.2*line_width;\
2249
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2250
   };\
2251
   ctx.beginPath();\
2252
   ctx.moveTo(xmarge,y_e);\
2253
   ctx.lineTo(xsize,y_e);\
2254
   ctx.stroke();\
2255
   ctx.closePath();\
2256
  };\
2257
 };\
2258
 ctx.restore();\
2259
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 2260
        break;
2261
      case DRAW_XLOGSCALE:
2262
        fprintf(js_include_file,"\n/* draw xlogscale */\
15111 schaersvoo 2263
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){\
2264
 var obj;\
2265
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2266
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2267
 } else {\
15111 schaersvoo 2268
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2269
 };\
2270
 var ctx = obj.getContext(\"2d\");\
2271
 ctx.clearRect(0,0,xsize,ysize);\
2272
 ctx.save();\
2273
 ctx.lineWidth = line_width;\
2274
 var prec = Math.log(precision)/Math.log(10);\
2275
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2276
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2277
 var y_min = 0;var y_max = ysize;var x_e;var corr;\
2278
 var xtxt;var ytxt;var num;var xmarge;var ymarge;\
2279
 if(use_axis_numbering != -1){\
2280
  ctx.font = font_family;\
2281
  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
2282
  ymarge = parseInt(1.5*font_size);\
2283
  ctx.save();\
2284
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2285
  ctx.rect(0,0,xmarge,ysize);\
2286
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2287
  ctx.fill();\
2288
  ctx.restore();\
2289
 }else{xmarge = 0;ymarge = 0;};\
2290
 if( typeof(xaxislabel) !== 'undefined' ){\
2291
  ctx.save();\
15313 schaersvoo 2292
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2293
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2294
  corr =  ctx.measureText(xaxislabel).width;\
2295
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2296
  ctx.restore();\
2297
 };\
2298
 if( typeof(yaxislabel) !== 'undefined' ){\
2299
  ctx.save();\
15313 schaersvoo 2300
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2301
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2302
  corr = ctx.measureText(yaxislabel).width;\
2303
  ctx.translate(xmarge+font_size,corr+font_size);\
2304
  ctx.rotate(-0.5*Math.PI);\
2305
  ctx.fillText(yaxislabel,0,0);\
2306
  ctx.restore();\
2307
 };\
2308
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2309
 ctx.lineWidth = line_width;\
2310
 for(var p = x_min; p <= x_max ; p++){\
2311
  num = Math.pow(xlogbase,p);\
2312
  for(var i = 1 ; i < xlogbase ; i++){\
2313
   x_e = x2px(i*num);\
2314
   if( i == 1 ){\
2315
     ctx.lineWidth = line_width;\
2316
     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2317
    if( use_axis_numbering != -1 && p > x_min ){\
2318
      xtxt = xlogbase+'^'+p.toFixed(0);\
2319
      corr = 0.5*(ctx.measureText(xtxt).width);\
2320
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2321
    };\
2322
   }else{\
2323
    ctx.lineWidth = 0.2*line_width;\
2324
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2325
   };\
2326
   if( x_e >= xmarge ){\
2327
    ctx.beginPath();\
2328
    ctx.moveTo(x_e,0);\
2329
    ctx.lineTo(x_e,ysize - ymarge);\
2330
    ctx.stroke();\
2331
    ctx.closePath();\
2332
   };\
2333
  };\
2334
 };\
2335
 var stepy = Math.abs(y2px(ymajor) - y2px(0));\
2336
 var minor_step = stepy / yminor;\
2337
 for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
2338
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2339
  ctx.lineWidth = line_width;\
2340
  ctx.beginPath();\
2341
  ctx.moveTo(xmarge,y);\
2342
  ctx.lineTo(xsize,y);\
2343
  ctx.stroke();\
2344
  ctx.closePath();\
2345
  if( use_axis_numbering != -1){\
2346
   ytxt = (px2y(y)).toFixed(prec);\
2347
   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
2348
  };\
2349
  for(var dy = 1 ; dy < yminor ; dy++){\
2350
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2351
   ctx.lineWidth = 0.2*line_width;\
2352
   ctx.beginPath();\
2353
   ctx.moveTo(xmarge,y+dy*minor_step);\
2354
   ctx.lineTo(xsize,y+dy*minor_step);\
2355
   ctx.stroke();\
2356
   ctx.closePath();\
2357
  };\
2358
 };\
2359
 ctx.restore();\
2360
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 2361
        break;
2362
      case DRAW_YLOGSCALE:
2363
        fprintf(js_include_file,"\n/* draw ylogscale */\
15111 schaersvoo 2364
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){\
2365
 var obj;\
2366
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2367
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2368
 } else {\
15111 schaersvoo 2369
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2370
 };\
2371
 var ctx = obj.getContext(\"2d\");\
2372
 ctx.clearRect(0,0,xsize,ysize);\
2373
 ctx.save();\
2374
 ctx.lineWidth = line_width;\
2375
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2376
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2377
 var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
2378
 if(use_axis_numbering != -1){\
2379
  ctx.font = font_family;\
2380
  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
2381
  ymarge = 2*font_size;\
2382
  ctx.save();\
2383
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2384
  ctx.rect(0,0,xmarge,ysize);\
2385
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2386
  ctx.fill();\
2387
  ctx.restore();\
2388
 }else{xmarge = 0;ymarge = 0;};\
2389
 if( typeof(xaxislabel) !== 'undefined' ){\
2390
  ctx.save();\
15313 schaersvoo 2391
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2392
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2393
  corr =  ctx.measureText(xaxislabel).width;\
2394
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2395
  ctx.restore();\
2396
 };\
2397
 if( typeof(yaxislabel) !== 'undefined' ){\
2398
  ctx.save();\
15313 schaersvoo 2399
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2400
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2401
  corr = ctx.measureText(yaxislabel).width;\
2402
  ctx.translate(xmarge+font_size,corr+font_size);\
2403
  ctx.rotate(-0.5*Math.PI);\
2404
  ctx.fillText(yaxislabel,0,0);\
2405
  ctx.restore();\
2406
 };\
2407
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2408
 ctx.lineWidth = line_width;\
2409
 for(var p = y_min; p <= y_max ; p++){\
2410
  num = Math.pow(ylogbase,p);\
2411
  for(var i = 1 ; i < ylogbase ; i++){\
2412
   y_e = y2px(i*num);\
2413
   if( i == 1 ){\
2414
    ctx.lineWidth = line_width;\
2415
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2416
    if( use_axis_numbering != -1 && p > y_min){\
2417
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2418
    };\
2419
   }else{\
2420
    ctx.lineWidth = 0.2*line_width;\
2421
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2422
   };\
2423
   ctx.beginPath();\
2424
   ctx.moveTo(xmarge,y_e);\
2425
   ctx.lineTo(xsize,y_e);\
2426
   ctx.stroke();\
2427
   ctx.closePath();\
2428
  };\
2429
 };\
2430
 var stepx = Math.abs(x2px(xmajor) - x2px(0));\
2431
 var minor_step = stepx / xminor;\
2432
 var prec = Math.log(precision)/Math.log(10);\
2433
 var xtxt;var corr;var flip = 0;\
2434
 for(var x = stepx ; x < xsize ; x = x + stepx){\
2435
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2436
  ctx.lineWidth = line_width;\
2437
  ctx.beginPath();\
2438
  ctx.moveTo(x,ysize-ymarge);\
2439
  ctx.lineTo(x,0);\
2440
  ctx.stroke();\
2441
  ctx.closePath();\
2442
  if( use_axis_numbering != -1){\
2443
   xtxt = (px2x(x)).toFixed(prec);\
2444
   corr = 0.5*(ctx.measureText(xtxt).width);\
2445
   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
2446
   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
2447
  };\
2448
  for(var dx = 1 ; dx < xminor ; dx++){\
2449
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2450
   ctx.lineWidth = 0.2*line_width;\
2451
   ctx.beginPath();\
2452
   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
2453
   ctx.lineTo(x+dx*minor_step,0);\
2454
   ctx.stroke();\
2455
   ctx.closePath();\
2456
  };\
2457
 };\
2458
 ctx.restore();\
2459
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
18553 bpr 2460
        break;
2461
      case ADD_USER_INPUTS:
2462
        fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2463
function add_input_xy(){\
2464
if( wims_status == \"done\" ){return;};\
2465
var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
2466
var input_xy_div = document.createElement('div');\
2467
input_xy_div.id = \"input_xy_div\";\
2468
tooltip_div.appendChild(input_xy_div);",canvas_root_id);
2469
 
18553 bpr 2470
      if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
2471
        type=1;
18572 bpr 2472
        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);
18553 bpr 2473
      }else{
2474
        if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
2475
          type=2;
18572 bpr 2476
          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);
18553 bpr 2477
        }else{
2478
            type=3;
2479
            if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
18572 bpr 2480
              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);
18553 bpr 2481
            }else{
2482
              type=4;
2483
              if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
18572 bpr 2484
                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);
18553 bpr 2485
              }else{
2486
                type=5;
2487
                if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
18572 bpr 2488
                  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);
18553 bpr 2489
                }else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
2490
              }
2491
            }
2492
          }
2493
        }
2494
      }
2495
      fprintf(js_include_file,"\
15111 schaersvoo 2496
var update_button = document.getElementById(\"update_button\");\
2497
var delete_button = document.getElementById(\"delete_button\");\
2498
update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
2499
delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
2500
};add_input_xy();");
2501
 
18553 bpr 2502
      switch(type){
2503
        case 1:
2504
          fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2505
function update_me(){\
15529 schaersvoo 2506
 var x = safe_eval(document.getElementById('userinput_x').value);\
2507
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2508
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2509
 return;\
2510
};");break;
18553 bpr 2511
        case 2:
2512
          fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2513
function update_me(){\
15529 schaersvoo 2514
 var x = safe_eval(document.getElementById('userinput_x').value);\
2515
 var y = safe_eval(document.getElementById('userinput_y').value);\
2516
 var r = safe_eval(document.getElementById('userinput_r').value);\
15111 schaersvoo 2517
 r = scale_x_radius(r);\
2518
 userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2519
 return;\
2520
};");break;
18553 bpr 2521
        case 3:
2522
          fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2523
function update_me(){\
2524
 var x,y;\
2525
 for(var p=1; p<3;p++){\
15529 schaersvoo 2526
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2527
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2528
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2529
 };\
2530
 return;\
2531
};");
18553 bpr 2532
          break;
2533
        case 4:
2534
          fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2535
function update_me(){\
2536
 var x,y;\
2537
 for(var p=1; p<4;p++){\
15529 schaersvoo 2538
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2539
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2540
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2541
 };\
2542
 return;\
2543
};");
18553 bpr 2544
          break;
2545
        case 5:
15111 schaersvoo 2546
 /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
18553 bpr 2547
          fprintf(js_include_file,"\n/* add_input_xy */\
15111 schaersvoo 2548
function update_me(){\
15529 schaersvoo 2549
 var x = safe_eval(document.getElementById('userinput_x').value);\
2550
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2551
 var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
2552
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
2553
 return;\
2554
};");
18553 bpr 2555
          break;
2556
        default: canvas_error("hmmm, I've no idea...");break;
2557
      }
2558
      break;
2559
      default:break;
2560
      }
2561
    }
15111 schaersvoo 2562
  }
2563
  return;
2564
}