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15111 schaersvoo 1
#include "canvasdraw.h"
2
/*
3
collection of javascript utilities (with no configurable parameters)
4
*/
5
void add_javascript_function(){
16643 schaersvoo 6
#ifdef KATEX_INSTALLED
16642 schaersvoo 7
char *mathjax="centered(xml_div,obj);";
8
#else
9
char *mathjax="setTimeout(function(){centered(xml_div,obj)},100);";
10
#endif
15111 schaersvoo 11
int i;
12
int type;
13
for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
14
/*
17351 bpr 15
fprintf(stdout,"checking js_function[%d] = %d<br>",i,js_function[i]);
15111 schaersvoo 16
*/
17
 if( js_function[i] == 1){
18
    switch(i){
19
 
15690 schaersvoo 20
case JS_ARROWHEAD:
21
/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */
22
fprintf(js_include_file,"\n/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */\
23
function draw_arrowhead(x,y,x0,y0,ctx){\
24
var angle = Math.atan2(x - x0,y - y0) + Math.PI;\
25
var pie = Math.PI/6;\
26
ctx.save();\
27
ctx.fillStyle=ctx.strokeStyle;\
28
ctx.beginPath();\
29
ctx.moveTo(x,y);\
30
ctx.moveTo(x - (arrow_head * Math.sin(angle - pie)),y - (arrow_head * Math.cos(angle - pie)));\
31
ctx.lineTo(x,y);\
32
ctx.lineTo(x - (arrow_head * Math.sin(angle + pie)),y - (arrow_head * Math.cos(angle + pie)));\
33
ctx.closePath();\
34
ctx.stroke();\
35
ctx.fill();\
36
ctx.restore();\
37
};");
38
break;
15111 schaersvoo 39
case JS_LOAD_IMAGE:
40
fprintf(js_include_file,"\n/* get_image_from_url */\
41
var image_cnt = 0;\
42
if( typeof(image_patterns) !== 'object'){var image_patterns = [];};\
43
var get_image_from_url = function(url){\
44
 var idx = Math.ceil(1000*(Math.random()));\
45
 var canvas = create_canvas%d(idx,xsize,ysize);\
46
 canvas.style.visibility = 'hidden';\
47
 var ctx = canvas.getContext(\"2d\");\
48
 var img = new Image();\
49
 img.src = url;\
50
 img.onload = function(){\
51
  var pat = ctx.createPattern(img,\"repeat\");\
52
  image_patterns.push(pat);\
53
 };\
54
};",canvas_root_id);
55
break;
56
 
57
case JS_SAFE_EVAL:
58
/* to avoid easy js-code injection...but is it a real problem ? */
59
fprintf(js_include_file," \n/* add safe eval function */function safe_eval(exp){\
60
 exp = exp.replace(/pi/g,'3.14159');\
61
 if(exp.indexOf('^') != -1){\
62
  exp = exp.replace(/[a-zA-Z]/g,' ');\
63
  exp = exp.replace(/\\*10\\^-/g,'e-');\
64
  exp = exp.replace(/\\*10\\^/g,'e+');\
65
  exp = exp.replace(/10\\^-/g,'1e-');exp = exp.replace(/10\\^/g,'1e+');\
66
  exp = eval(exp);\
67
  if(isNaN(exp)){alert(\"invalid input\\ntry just a real number \\ne.g. no calculations...\");return null;}\
68
  return exp;\
69
 };\
70
 var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;\
71
 var valid = true;\
72
 exp = exp.replace(reg,function($0){\
73
  if(Math.hasOwnProperty($0)){\
74
   return \"Math.\"+$0;\
16844 bpr 75
  } else {\
15111 schaersvoo 76
   valid = false;\
77
  }\
78
 }\
79
 );\
80
 if( !valid ){\
81
  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
16844 bpr 82
 } else {\
15111 schaersvoo 83
  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
84
 };\
85
 return exp;\
86
};");
87
break;
88
 
89
case JS_RAWMATH:
90
fprintf(js_include_file,"\n/* add_rawmath() */\
91
function rawmath(i){\
92
 i=i.toLowerCase();\
93
 i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
94
 if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
95
 if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
96
 i=i.replace(/\\*\\*/g,\"*\");\
97
 if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
98
 var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
99
 var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
100
 var cntl = 0;var cntr = 0;\
101
 var len = i.length;\
102
 for( var p = 0;p < len; p++){\
103
  if(i.charAt(p) == '('){cntl++;}\
104
  if(i.charAt(p) == ')'){cntr++;}\
105
 };\
106
 if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
107
 for(var p = 0; p < 12 ; p++){\
108
  for(var d = 0; d < 12 ; d++){\
109
   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
110
    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
111
   };\
112
   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
113
    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
114
   };\
115
  };\
116
 };\
117
 if(i.indexOf(\"(\")!=-1){\
118
  for(var p = 0;p < 12; p++){\
119
   if(i.indexOf(cons[p]+\"(\")!=-1){\
120
    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
121
   };\
122
   if(i.indexOf(\")\"+cons[p])!=-1){\
123
    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
124
   };\
125
  };\
126
  i = i.replace(/\\)\\(/g,\")*(\");\
127
 };\
128
 return i;\
129
};");
130
break;
131
 
132
case JS_PLOT:
133
fprintf(js_include_file,"\n/* jsplot() */\
134
var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
135
function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
136
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
137
 var ctx = obj.getContext(\"2d\");\
138
 ctx.clearRect(0,0,xsize,ysize);\
139
 animation_funs = funs.length;\
140
 function eval_jsmath(x,func){return parseFloat(eval(func));};\
141
 if(origin == 0 ){\
142
  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
143
  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
144
  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
145
  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
146
 };\
147
 x_anim_points = [];y_anim_points = [];var idx=0;\
148
 if( use_parametric == 1){\
149
  for(var i = 0 ; i < animation_funs; i=i+2){\
15351 bpr 150
   funs[i] = funs[i].replace(/t/g,'x');\
151
   funs[i+1] = funs[i+1].replace(/t/g,'x');\
152
   funs[i] = funs[i].replace(/xan/g,'tan');\
153
   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
15111 schaersvoo 154
   var fun_x = to_js_math(funs[i]);\
155
   var fun_y = to_js_math(funs[i+1]);\
156
   if(fun_x == null || fun_y == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
157
   try{ parseFloat( eval_jsmath( px2x(0),fun_x ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
158
   ctx.lineWidth = linewidth[i] || linewidth;\
159
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
160
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
161
   var y1;var x1;var y2;var x2;\
162
   ctx.beginPath();\
163
   var tmin = trange[0];var tmax = trange[1];\
164
   var step = parseFloat((tmax - tmin)/plotsteps);\
165
   for(var p = tmin ; p < tmax; p = p+step ){\
166
    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
167
    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
168
    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
169
    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
170
    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
171
     ctx.moveTo(x1,y1);\
172
     ctx.lineTo(x2,y2);\
173
     ctx.moveTo(x1,y1);\
174
     ctx.lineTo(x2,y2);\
175
   };\
176
   ctx.closePath();\
177
   ctx.stroke();\
178
  };\
179
  animation_funs = 0.5*animation_funs;\
180
 }else{\
181
  for(var i = 0 ; i < animation_funs; i++){\
182
   var fun = to_js_math(funs[i]);\
183
   if(fun == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
184
   try{ parseFloat( eval_jsmath( px2x(0),fun ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
185
   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
186
   ctx.lineWidth = linewidth[i] || linewidth;\
187
   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
188
   var y1;var x1;var y2;var x2;\
189
   ctx.beginPath();\
190
   for(var p = 0 ; p<xsize;p++){\
191
    x1 = px2x(p);\
192
    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
193
    x2 = px2x(p+1);\
194
    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
195
    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
196
    if(Math.abs(y2-y1) < ysize ){\
197
     ctx.moveTo(p,y1);\
198
     ctx.lineTo(p+1,y2);\
199
    };\
200
   };\
201
   ctx.closePath();\
202
   ctx.stroke();\
203
  };\
204
 };\
205
 if( use_animate == 1 ){animation_steps = idx;animate_this();}\
206
};",canvas_root_id);
207
break;
208
 
209
case JS_MATH:
210
fprintf(js_include_file,"\n/* to_js_math() */\
211
function to_js_math(math_fun){\
212
 if(math_fun == null){return;};\
213
 var infun=[\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
214
 var outfun=[\"Math.sqrt\",\"Math.pow\",\"Math.asin\",\"Math.acos\",\"Math.atan\",\"Math.log\",\"(3.14159265358979)\",\"Math.abs\",\"Math.sin\",\"Math.cos\",\"Math.tan\",\"(2.718281828459045)\"];\
215
 var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
216
 for(var p=0 ; p < len ; p++){\
217
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
218
  if(math_fun.indexOf(in_fun) != -1){\
219
   if(in_fun == \"^\"){\
220
    var tab = [];var small_trick = \"___small_trick___\";\
221
    while (math_fun.indexOf(\"(\") != -1){\
222
     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
223
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
224
    };\
225
    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
226
    while (math_fun.indexOf(small_trick) != -1){\
227
     math_fun = math_fun.replace(new RegExp(small_trick + \"(\\\\d+)\", \"g\"), function(m, d){return tab[d].replace(/(\\w*)\\^(\\w*)/g, out_fun+\"($1,$2)\");});\
228
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
229
    };\
16844 bpr 230
   } else {\
15111 schaersvoo 231
    while( math_fun.indexOf(in_fun) != -1 ){\
232
     math_fun = math_fun.replace(in_fun,out_fun);\
233
     math_fun = math_fun.replace(in_fun,In_Fun);\
234
     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
235
    };\
236
   };\
237
  };\
238
 };\
239
 for(var p=0 ; p < len ; p++){\
240
  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
241
  if(math_fun.indexOf(In_Fun) != -1 ){\
242
   while(math_fun.indexOf(In_Fun) != -1){\
243
    math_fun = math_fun.replace(In_Fun,in_fun);\
244
    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
245
   };\
246
  };\
247
 };\
248
 return math_fun;\
249
};");
250
break;
251
 
16943 schaersvoo 252
case INTERACTIVE:
17351 bpr 253
/* 1/8/2022 NOTE : getMouse() code should run at maximum speed and not be bothered with all kind of fancy tests !!
16943 schaersvoo 254
  1/8/2022 : latest improvements related to 'reponsiveness' will fatally lockup browsers in the pixel-by-pixel filling...at least in userdraw clickfill...*/
16845 bpr 255
 fprintf(js_include_file,"\n/* add mouse support */\
256
var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));\
257
var getMouse = function(e, element){\
258
   var mx,my;var offsetX = 0,offsetY = 0;\
259
   while( ( element = element.offsetParent) ){\
260
     offsetX += element.offsetLeft;offsetY += element.offsetTop;\
261
   };\
262
   /*console.log('===');*/\
263
   if(isTouch){\
264
      mx = e.pageX - offsetX; my = e.pageY - offsetY;\
265
   }else{\
266
      mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);\
267
      my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);\
268
   };\
16942 schaersvoo 269
   if( typeof(clickfill) === 'function'){ return {x: mx, y: my};}else{\
16845 bpr 270
   /* test if canvas_div is inside a scrollable */\
271
   const scroll_parent = canvas_div.closest('.wims_scrollable');\
272
   if (scroll_parent){\
273
      mx = mx + scroll_parent.scrollLeft;\
274
      my = my + scroll_parent.scrollTop;\
275
   }\
276
   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
277
   /*console.log('mx before=' + mx);\
278
   console.log('xsize='+xsize);\
279
   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
280
   mx = (mx * xsize / canvas_div.offsetWidth);\
281
   /*console.log('mx after='+mx);*/\
282
   my = (my * ysize / canvas_div.offsetHeight);\
16942 schaersvoo 283
   return {x: mx, y: my};};\
16845 bpr 284
};");
15111 schaersvoo 285
break;
286
case USERDRAW_AND_ZOOM:
287
fprintf(js_include_file,"\n/* add zoom support for multidraw */\
288
function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
289
 function x_zoom(px){\
290
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
291
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
292
 };\
293
 function y_zoom(py){\
294
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
295
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
296
 };\
297
 function r_zoom(r){\
298
  return r*(xmin0/xmin);\
299
 };\
300
 var len = userdraw_x.length;\
301
 var x;var y;var r;\
302
 for(var p=0;p<len;p++){\
303
  x = userdraw_x[p];\
304
  y = userdraw_y[p];\
305
  userdraw_x[p] = x_zoom(x);\
306
  userdraw_y[p] = y_zoom(y);\
307
  if( userdraw_radius[p] ){\
308
   r = userdraw_radius[p];\
309
   userdraw_radius[p] = r_zoom(r);\
310
  };\
311
 };\
312
};");
313
break;
314
 
315
case DRAG_AND_ZOOM:
316
fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
317
function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
318
 function x_zoom(px){\
319
  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
320
  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
321
 };\
322
 function y_zoom(py){\
323
  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
324
  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
325
 };\
326
 var len = dragstuff.shapes.length;\
327
 var shape;var L;var x;var y;\
328
 for(var p=0;p<len;p++){\
329
  shape = dragstuff.shapes[p];\
330
  L = shape.x.length;\
331
  for(var i=0;i<L;i++){\
332
   x = shape.x[i];\
333
   y = shape.y[i];\
334
   dragstuff.shapes[p].x[i] = x_zoom(x);\
335
   dragstuff.shapes[p].y[i] = y_zoom(y);\
336
  };\
337
 };\
338
};");
339
break;
340
 
341
case JSPLOT_AND_ZOOM:
342
fprintf(js_include_file,"\n/* add zoom support for jscurves */\
343
function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
344
break;
345
 
346
case JS_ZOOM:
347
fprintf(js_include_file,"\n/* add zoom support */\
348
var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
349
var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
350
function redraw_canvas%d(key){\
351
 var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
352
 switch(key){\
353
  case 0: xmin++;ymin++;xmax--;ymax--;break;\
354
  case 1: xmin--;ymin--;xmax++;ymax++;break;\
355
  case 2: xmin--;xmax--;break;\
356
  case 3: xmin++;xmax++;break;\
357
  case 4: ymin--;ymax--;break;\
358
  case 5: ymax++;ymin++;break;\
359
  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
360
  default: break;\
361
 };\
362
 if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
363
 if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
364
 if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
365
 if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
366
 if( typeof(redraw_grid) === 'function'){redraw_grid();};\
367
 if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
368
 if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
369
 return;\
370
};\
371
canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
372
canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
373
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
374
function wheel_zoom(evt){\
375
 evt.preventDefault();\
376
 var key = 1;\
377
 if(evt.deltaY > 0 ){key = 0};\
378
 redraw_canvas%d(key);\
379
 return;\
380
};\
381
function check_zoom_or_pan(evt){\
382
 var mouse = getMouse(evt,zoomcanvas);\
383
 var my = mouse.y;\
384
 if(my < ysize - 30){ return; };\
385
 var mx = mouse.x;\
386
 var key = -1;\
387
 for(var p = 15 ; p < 106 ; p = p+15){\
388
  key++;\
389
  if(mx > xsize - p){\
390
   redraw_canvas%d(key);\
391
   return;\
392
  };\
393
 };\
394
 return;\
395
};",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
396
break;
397
 
398
case DRAW_FILL_PATTERN:
399
fprintf(js_include_file,"\n /* add fill pattern */ \
400
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;\
401
 switch(type){\
402
  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;\
403
  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;\
404
  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;\
405
  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;\
406
  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
407
  default: break;\
408
 };\
409
 document.body.style.cursor = 'default';return pat;\
410
};",canvas_root_id);
411
break;
412
 
413
case JS_TRANSFORM_MOUSE:
414
/* identify mouse coordinates on transformed objects using command affine */
415
fprintf(js_include_file,"\n/* translate mouse */\
416
function transform_mouse(mx,my,obj){\
417
if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
418
var m = obj.affine_matrix;\
419
var d = 1/(m[0]*m[3]-m[1]*m[2]);\
420
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]) ];\
421
return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
422
break;
423
 
424
case JS_ROTATE_MOUSE:
425
/*
426
identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
427
faster than transform matrix
428
*/
429
fprintf(js_include_file,"\n/* rotate mouse */\
430
function rotate_mouse(mx,my,obj){\
431
 if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
432
 var cos = Math.cos(obj.angle);\
433
 var sin = Math.sin(obj.angle);\
434
 var xc = obj.rotation_center[0];\
435
 var yc = obj.rotation_center[1];\
436
 var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
437
 var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
438
 return {x:x_r,y:y_r};};");
439
break;
440
 
441
case JS_FIND_ANGLE:
442
 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);};");
443
break;
444
 
445
case DRAG_EXTERNAL_IMAGE:
446
/*
447
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
448
reply is object{} and identical to reply from dragstuff library for drag&drop&click
449
*/
450
fprintf(js_include_file,"\n/* drag external images */\
451
var external_ctx = external_canvas.getContext(\"2d\");\
452
var external_canvas_rect = external_canvas.getBoundingClientRect();\
453
canvas_div.addEventListener(\"mousedown\",setxy,false);\
454
canvas_div.addEventListener(\"mouseup\",dragstop,false);\
455
canvas_div.addEventListener(\"mousemove\",dragxy,false);\
456
canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
457
canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
458
canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
459
var selected_image = null;\
460
if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
461
if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
17518 schaersvoo 462
if( typeof(slidergroup) == 'undefined' ) { var slidergroup = [];};\
15111 schaersvoo 463
function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
464
 var image = new Image();\
465
 image.src = URL;\
466
 slidergroup[object_cnt] = null;\
467
 image.onload = function(){\
468
  if( sx < 1 ){ sx = 0; };\
469
  if( sy < 1 ){ sy = 0; };\
470
  if( swidth < 1 ){swidth = image.width;};\
471
  if( sheight < 1 ){sheight = image.height;};\
472
  if( width < 1 ){width = image.width;};\
473
  if( height < 1 ){height = image.height;};\
474
  if( resize == 1 ){\
475
   if( swidth > image.width ){ swidth = image.width; };\
476
   if( sheight > image.height){ sheight = image.height;};\
477
   if( width > image.width ){ width = image.width; };\
478
   if( height > image.height){ height = image.height;};\
479
  };\
480
  var img = new Array(18);\
481
  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
482
  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
483
  img[6] = x0;img[7] = y0;\
484
  img[12] = ext_image_cnt;\
485
  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
486
  if(use_offset == 4 ){\
487
   img[16] = 0.5*img[8];\
488
   img[17] = 0.5*img[9];\
489
   img[6]= parseInt(img[6] - img[16]);\
490
   img[7]= parseInt(img[7] - img[17]);\
491
  };\
492
  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
16847 schaersvoo 493
  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
15111 schaersvoo 494
  ext_drag_images[ext_image_cnt] = img;\
495
  ext_image_cnt++;\
496
 };\
497
};\
498
function dragstop(evt){\
499
 if(selected_image != null){\
500
  var s_img = ext_drag_images[selected_image];\
16847 schaersvoo 501
  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 502
 };\
503
 selected_image = null;return;\
504
};\
505
function dragxy(evt){\
506
 if( selected_image != null ){\
507
  var s_img = ext_drag_images[selected_image];\
508
  var mouse = getMouse(evt,external_canvas);\
509
  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
510
  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
511
  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
512
  s_img[6] = xy[0];s_img[7] = xy[1];\
513
  ext_drag_images[selected_image] = s_img;\
514
  external_ctx.clearRect(0,0,xsize,ysize);\
515
  for(var i = 0; i < ext_image_cnt ; i++){\
516
   var img = ext_drag_images[i];\
517
   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
518
  };\
519
 };\
520
};\
521
function setxy(evt){\
522
 if( ! selected_image ){\
523
  var mouse = getMouse(evt,external_canvas);\
524
  var xm = mouse.x;\
525
  var ym = mouse.y;\
526
  var img;var xmarge;var ymarge;\
527
  for(var p = 0 ; p < ext_image_cnt ; p++){\
528
   if( ext_drag_images[p] ){\
529
    img = ext_drag_images[p];\
530
    if( img[0] != 0 ){\
531
     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
532
     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
533
      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
534
       if( img[0] == 1){\
535
        if( dragdrop_reply[img[10]].clicked == 1 ){\
536
         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
537
        }\
538
        else\
539
        {\
540
         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
541
        };\
542
        external_ctx.lineWidth = 2;\
543
        external_ctx.beginPath();\
544
        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
545
        external_ctx.closePath();\
546
        external_ctx.stroke();\
547
        return;\
548
       }\
549
       else\
550
       {\
551
        img[6] = xm;\
552
        img[7] = ym;\
553
        selected_image = p;\
554
        dragxy(evt);\
555
        ext_drag_images[p] = img;\
556
       };\
557
      };\
558
     };\
559
    };\
560
   };\
561
  };\
16844 bpr 562
 } else {\
15111 schaersvoo 563
  selected_image = null;\
564
 };\
565
};");
566
break;
567
 
568
case DRAW_EXTERNAL_IMAGE:
569
/*
570
the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
571
only drag_xy !
572
snaptogrid | xsnaptogrid | ysnaptogrid works
573
14/5/2019
574
on heavy styled wims (unice.fr etc problems with mouse?
575
now uniform method of retreiving mouse coordinates getMouse()
576
*/
577
fprintf(js_include_file,"\n/* draw external images */\
578
function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
579
 var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
580
 var image = new Image();\
581
 image.src = URL;\
582
 image.onload = function(){\
583
  if( sx < 1 ){ sx = 0; };\
584
  if( sy < 1 ){ sy = 0; };\
585
  if( swidth < 1 ){swidth = image.width;};\
586
  if( sheight < 1 ){sheight = image.height;};\
587
  if( width < 1 ){width = image.width;};\
588
  if( height < 1 ){height = image.height;};\
589
  if( resize == 1 ){\
590
   if( swidth > image.width ){ swidth = image.width; };\
591
   if( sheight > image.height){ sheight = image.height;};\
592
   if( width > image.width ){ width = image.width; };\
593
   if( height > image.height){ height = image.height;};\
594
  };\
595
  var img = new Array(9);\
596
  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
597
  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
598
  img[7] = width;img[8] = height;\
599
  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
600
 };\
601
};");
602
break;
603
 
604
case DRAW_BEZIER:
605
fprintf(js_include_file,"\n/* draw bezier curve */\
606
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
607
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){\
608
 var obj;\
609
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
610
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 611
 } else {\
15111 schaersvoo 612
  obj = create_canvas%d(canvas_type,xsize,ysize);\
613
 };\
614
 var ctx = obj.getContext(\"2d\");\
615
 ctx.save();\
616
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
617
 ctx.lineWidth = linewidth;\
618
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
619
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
620
 ctx.beginPath();\
621
 ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
622
 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]));\
623
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
624
 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;};\
625
 ctx.stroke();\
626
 ctx.restore();\
627
};",canvas_root_id,canvas_root_id,canvas_root_id);
628
break;
629
 
630
case DRAW_GRIDFILL:/* not used for userdraw */
631
fprintf(js_include_file,"\n/* draw gridfill */\
632
var grid_fill_pattern;\
633
function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
634
 if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
635
 var fc = %d+canvas_type;\
636
 var obj = create_canvas%d(fc,xsize,ysize);\
637
 var ctx = obj.getContext('2d');\
638
 var x,y;\
639
 ctx.fillStyle='rgba(255,255,255,0.01)';\
640
 ctx.rect(0,0,xsize,ysize);\
641
 ctx.fill();\
642
 ctx.lineWidth = linewidth;\
643
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
644
 for( x = 0 ; x <= xsize ; x = x + dx ){\
645
  ctx.beginPath();\
646
  ctx.moveTo(x,0);\
647
  ctx.lineTo(x,ysize);\
648
  ctx.closePath();\
649
  ctx.stroke();\
650
 };\
651
 for( y = 0 ; y <= ysize; y = y + dy ){\
652
  ctx.beginPath();\
653
  ctx.moveTo(0,y);\
654
  ctx.lineTo(xsize,y);\
655
  ctx.closePath();\
656
  ctx.stroke();\
657
 };\
658
 if( use_userdraw ){\
659
  grid_fill_pattern = ctx;\
16844 bpr 660
 } else {\
15111 schaersvoo 661
  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
662
};",canvas_root_id,canvas_root_id);
663
break;
664
 
665
case DRAW_IMAGEFILL:/* not  used for userdraw */
666
fprintf(js_include_file,"\n/* draw imagefill */\
667
function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
668
 var fc = %d+canvas_type;\
669
 var obj = create_canvas%d(fc,xsize,ysize);\
670
 var ctx = obj.getContext('2d');\
671
 var img = new Image();\
672
 img.src = URL;\
673
 obj.style.visibility = 'hidden';\
674
 img.onload = function(){\
675
  if( use_scaling == 1 ){\
676
   ctx.drawImage(img,x0,y0,xsize,ysize);\
677
  }else{\
678
   var w0 = img.width;var h0 = img.height;var w;var h;\
679
   for( w = x0; w < xsize ; w = w + w0 ){\
680
    for( h = y0; h < ysize; h = h + h0){\
681
      ctx.drawImage(img,w,h,w0,h0);\
682
    };\
683
   };\
684
  };\
685
  if( use_userdraw ){\
686
   image_pattern = ctx;\
16844 bpr 687
  } else {\
15111 schaersvoo 688
   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
689
  };\
690
 };\
691
};",canvas_root_id,canvas_root_id);
692
break;
693
 
694
case DRAW_DOTFILL:/* not  used for userdraw */
695
fprintf(js_include_file,"\n/* draw dotfill */\
696
var dot_fill_pattern;\
697
function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
698
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
699
var fc = %d+canvas_type;\
700
 var obj = create_canvas%d(fc,xsize,ysize);\
701
 var ctx = obj.getContext('2d');\
702
 var x,y;\
703
 ctx.fillStyle='rgba(255,255,255,0.01)';\
704
 ctx.rect(0,0,xsize,ysize);\
705
 ctx.fill();\
706
 ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
707
 ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
708
 for( x = 0 ; x < xsize ; x = x + dx ){\
709
  for( y = 0 ; y < ysize ; y = y + dy ){\
710
   ctx.beginPath();\
711
   ctx.arc(x,y,radius,0,2*Math.PI,false);\
712
   ctx.closePath();\
713
   ctx.fill();\
714
  };\
715
 };\
716
 if( use_userdraw ){\
717
  dot_fill_pattern = ctx;\
16844 bpr 718
 } else {\
15111 schaersvoo 719
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
720
 };\
721
return;\
722
};",canvas_root_id,canvas_root_id);
723
break;
724
 
16714 schaersvoo 725
case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
16722 schaersvoo 726
/* use_offset
727
 0=none;
728
 1=yoffset
729
 2=xoffset
730
 3=xyoffset
731
 4=centered
732
*/
16700 schaersvoo 733
fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
16722 schaersvoo 734
function draw_subsup(ctx,x,y,txt,use_offset){\
16712 schaersvoo 735
 var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
16722 schaersvoo 736
 var m = 0.4*(ctx.measureText(txt).width);\
737
 var h = ctx.measureText('M').width;\
738
 switch(use_offset){\
739
  case 0:break;\
740
  case 1:y=y-h;;break;\
741
  case 2:x=x+h;break;\
742
  case 3:x=x+h;y=y-h;;break;\
743
  case 4:x=x-m;break;\
744
  default:break;\
745
 };\
16845 bpr 746
 var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
747
 ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
16705 schaersvoo 748
 for( c = 0 ; c < len ;c++){\
16700 schaersvoo 749
  C = txt.charAt(c);space = 0;\
16845 bpr 750
  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
16714 schaersvoo 751
  else\
16845 bpr 752
  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
16714 schaersvoo 753
  else\
16845 bpr 754
  if(C == ' '){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
16714 schaersvoo 755
  else\
756
  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
16845 bpr 757
  else{ctx.font = S+'px Helvetica';};\
16712 schaersvoo 758
  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
16700 schaersvoo 759
 };\
16705 schaersvoo 760
 ctx.stroke();\
16700 schaersvoo 761
 ctx.restore();\
762
 return;\
763
};");
764
break;
765
 
15111 schaersvoo 766
case DRAW_TEXTFILL:/* not  used for userdraw */
767
fprintf(js_include_file,"\n/* draw textfill */\
768
var text_fill_pattern;\
769
function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
770
var fc = %d+canvas_type;\
771
var obj = create_canvas%d(fc,xsize,ysize);\
772
var ctx = obj.getContext('2d');\
773
ctx.font = fontfamily;\
774
var dx = 2+(ctx.measureText(txt)).width;\
775
var dy = 2+(ctx.measureText('MI')).width;\
776
ctx.fillStyle='rgba(255,255,255,0.01)';\
777
ctx.rect(0,0,xsize,ysize);\
778
ctx.fill();\
779
ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
780
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
781
for(var x = 0 ; x <= xsize ; x = x + dx ){\
782
 for(var y = 0 ; y <= ysize ; y = y + dy ){\
783
  ctx.fillText(txt, x, y);\
784
 };\
785
};\
786
if( use_userdraw ){\
787
 text_fill_pattern = ctx;\
788
}\
789
else\
790
{\
791
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
792
};\
793
return;};",canvas_root_id,canvas_root_id);
794
break;
795
 
796
case DRAW_DIAMONDFILL:/* not used for userdraw */
797
fprintf(js_include_file,"\n/* draw hatch fill */\
798
var diamond_fill_pattern;\
799
function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
800
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
801
var fc = %d+canvas_type;\
802
var obj = create_canvas%d(fc,xsize,ysize);\
803
var ctx = obj.getContext('2d');\
804
var x;\
805
var y;\
806
ctx.lineWidth = linewidth;\
807
ctx.fillStyle='rgba(255,255,255,0.01)';\
808
ctx.rect(0,0,xsize,ysize);\
809
ctx.fill();\
810
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
811
y = ysize;\
812
ctx.beginPath();\
813
for( x = 0 ; x <= xsize ; x = x + dx ){\
814
  ctx.moveTo(x,0);\
815
  ctx.lineTo(xsize,y);\
816
  y = y - dy;\
817
};\
818
y=0;\
819
for( x = xsize ; x >= 0 ; x = x - dx){\
820
 ctx.moveTo(x,ysize);\
821
 ctx.lineTo(0,y);\
822
 y = y + dy;\
823
};\
824
y = 0;\
825
for( x = 0 ; x <= xsize ; x = x + dx ){\
826
 ctx.moveTo(x,0);\
827
 ctx.lineTo(0,y);\
828
 y = y + dy;\
829
};\
830
y = 0;\
831
for( x = 0 ; x <= xsize ; x = x + dx ){\
832
 ctx.moveTo(xsize,y);\
833
 ctx.lineTo(x,ysize);\
834
 y = y + dy;\
835
};\
836
ctx.closePath();\
837
ctx.stroke();\
838
if( use_userdraw ){\
839
 diamond_fill_pattern = ctx;\
840
}\
841
else\
842
{\
843
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
844
};\
845
return;\
846
}",canvas_root_id,canvas_root_id);
847
break;
848
 
849
case DRAW_HATCHFILL:/* not used for userdraw */
850
fprintf(js_include_file,"\n/* draw hatch fill */\
851
var hatch_fill_pattern;\
852
function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
853
if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
854
var fc = %d+canvas_type;\
855
var obj = create_canvas%d(fc,xsize,ysize);\
856
var ctx = obj.getContext('2d');\
857
var x,y;\
858
ctx.fillStyle='rgba(255,255,255,0.01)';\
859
ctx.rect(0,0,xsize,ysize);\
860
ctx.fill();\
861
ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
862
ctx.lineWidth = linewidth;\
863
y = ysize;\
864
ctx.beginPath();\
865
for( x = 0 ; x <= xsize ; x = x + dx ){\
866
 ctx.moveTo(x,0);\
867
 ctx.lineTo(xsize,y);\
868
 y = y - dy;\
869
};\
870
y = 0;\
871
for( x = xsize ; x >= dx ; x = x - dx){\
872
 ctx.moveTo(x,ysize);\
873
 ctx.lineTo(0,y);\
874
 y = y + dy;\
875
};\
876
ctx.closePath();\
877
ctx.stroke();\
878
if( use_userdraw ){\
879
 hatch_fill_pattern = ctx;\
880
}\
881
else\
882
{\
883
 setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
884
};\
885
return;};",canvas_root_id,canvas_root_id);
886
break;
887
 
888
case DRAW_LINES:/*  used for js-tracing */
889
fprintf(js_include_file,"\n/* draw lines */\
890
function calc_line(x1,x2,y1,y2){\
891
 var marge = 2;\
892
 if(x1 < x2+marge && x1>x2-marge){\
893
  return [x1,0,x1,ysize];\
894
 };\
895
 if(y1 < y2+marge && y1>y2-marge){\
896
  return [0,y1,xsize,y1];\
897
 };\
898
 var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
899
 var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
900
 return [0,Y1,xsize,Y2];\
901
};\
902
var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
903
 ctx.save();\
904
 var line = new Array(4);\
905
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
906
 ctx.lineWidth = line_width;\
907
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
908
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
909
 for(var p = 0 ; p < x_points.length ; p = p+2 ){\
910
  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
911
  ctx.beginPath();\
912
  ctx.moveTo(line[0],line[1]);\
913
  ctx.lineTo(line[2],line[3]);\
914
  ctx.closePath();\
915
  ctx.stroke();\
916
  }\
917
  ctx.restore();\
918
  return;\
919
 };");
920
break;
921
 
922
case DRAW_CROSSHAIRS:/*  used for tracing */
923
fprintf(js_include_file,"\n/* draw crosshairs  */\
924
var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
925
 ctx.save();\
926
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
927
 ctx.lineWidth = line_width;\
928
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
929
 var x1,x2,y1,y2;\
930
 for(var p = 0 ; p < x_points.length ; p++ ){\
931
  x1 = x_points[p] - crosshair_size;\
932
  x2 = x_points[p] + crosshair_size;\
933
  y1 = y_points[p] - crosshair_size;\
934
  y2 = y_points[p] + crosshair_size;\
935
  ctx.beginPath();\
936
  ctx.moveTo(x1,y1);\
937
  ctx.lineTo(x2,y2);\
938
  ctx.closePath();\
939
  ctx.stroke();\
940
  ctx.beginPath();\
941
  ctx.moveTo(x2,y1);\
942
  ctx.lineTo(x1,y2);\
943
  ctx.closePath();\
944
  ctx.stroke();\
945
 }\
946
 ctx.restore();\
947
  return;\
948
};");
949
break;
950
 
951
case DRAW_VIDEO:/* not  used for userdraw */
952
fprintf(js_include_file,"\n/* draw video */\
953
var draw_video = function(canvas_root_id,x,y,w,h,URL){\
954
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
955
 var video_div = document.createElement(\"div\");\
956
 canvas_div.appendChild(video_div);\
957
 video_div.style.position = \"absolute\";\
958
 video_div.style.left = x+\"px\";\
959
 video_div.style.top = y+\"px\";\
960
 video_div.style.width = w+\"px\";\
961
 video_div.style.height = h+\"px\";\
962
 var video = document.createElement(\"video\");\
963
 video_div.appendChild(video);\
964
 video.style.width = w+\"px\";\
965
 video.style.height = h+\"px\";\
966
 video.autobuffer = true;\
967
 video.controls = true;video.autoplay = false;\
968
 var src = document.createElement(\"source\");\
969
 src.type = \"video/mp4\";\
970
 src.src = URL;\
971
 video.appendChild(src);\
972
 video.load();\
973
 return;\
974
};");
975
break;
976
 
977
case DRAW_AUDIO:/* not used for userdraw */
978
fprintf(js_include_file,"\n/* draw audio */\
979
var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
980
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
981
 var audio_div = document.createElement(\"div\");\
982
 canvas_div.appendChild(audio_div);\
983
 audio_div.style.position = \"absolute\";\
984
 audio_div.style.left = x+\"px\";\
985
 audio_div.style.top = y+\"px\";\
986
 audio_div.style.width = w+\"px\";\
987
 audio_div.style.height = h+\"px\";\
988
 var audio = document.createElement(\"audio\");\
989
 audio_div.appendChild(audio);\
990
 audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
991
 audio.autobuffer = true;\
992
 if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
993
 if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
994
 var src1 = document.createElement(\"source\");\
995
 src1.type = \"audio/ogg\";\
996
 src1.src = URL1;\
997
 audio.appendChild(src1);\
998
 var src2 = document.createElement(\"source\");\
999
 src2.type = \"audio/mpeg\";\
1000
 src2.src = URL2;\
1001
 audio.appendChild(src2);\
1002
 audio.load();\
1003
 return;\
1004
};");
1005
break;
1006
 
1007
case DRAW_HTTP:/* not  used for userdraw */
1008
fprintf(js_include_file,"\n/* draw http */\
1009
var draw_http = function(canvas_root_id,x,y,w,h,URL){\
1010
 var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
1011
 var http_div = document.createElement(\"div\");\
1012
 var iframe = document.createElement(\"iframe\");\
1013
 canvas_div.appendChild(http_div);\
1014
 http_div.appendChild(iframe);\
1015
 iframe.src = URL;\
1016
 iframe.setAttribute(\"width\",w);\
1017
 iframe.setAttribute(\"height\",h);\
1018
 return;\
1019
};");
1020
break;
1021
 
1022
case DRAW_XML:
1023
/*
1024
!! function draw_xml(object)
1025
!! produced by : DRAW_XML
1026
!! used by commands: katex,latex,mathml,html,obabel
1027
!! uses js-functions: calculate_size(xml_div),rad2deg(rad)
1028
!! user interaction: drag,onclick,slider
1029
!! reply function: read_dragdrop()
1030
 
1031
onclick=0; no interaction
1032
onclick=1: click
1033
onclick=2: drag ==> always centered (use_offset=4)
1034
onclick=3: slider + click on object
1035
onclick=4: slider (always active , keyword 'active' in slider params)
1036
onclick=5: slider + dragdrop
1037
xy:  drag_type = 0;
1038
x:   drag_type = 1;
1039
y:   drag_type = 2;
1040
 
1041
obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
1042
*/
1043
 
1044
fprintf(js_include_file,"\n/* draw xml */\
1045
function centered(xml_div,obj){\
1046
 var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
1047
 var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
1048
 obj.offset = [ ww , hh ];\
16845 bpr 1049
 /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
1050
 xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
1051
 xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
1052
 xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
15111 schaersvoo 1053
};\
1054
function rad2deg(rad){return rad*180/(Math.PI);};\
1055
if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
1056
function draw_xml(obj){\
1057
 var mouse;var xy = [obj.x[0],obj.y[0]];\
1058
 var xml_div;\
1059
 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};\
1060
 if( obj.once ){\
1061
  xml_div = document.createElement('DIV');\
1062
  canvas_div.appendChild(xml_div);\
1063
  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
1064
  xml_div.id = 'xml_div'+obj.id;\
1065
  xml_div.innerHTML = obj.mathml;\
16845 bpr 1066
  xml_div.classList.add('canvasdraw_xml');\
15111 schaersvoo 1067
  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
1068
  xml_div.style.font = obj.fontfamily;\
1069
  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 1070
  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
16844 bpr 1071
 } else {\
15111 schaersvoo 1072
  xml_div = document.getElementById('xml_div'+obj.id );\
1073
 };\
16845 bpr 1074
 if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
1075
 /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
1076
 xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
1077
 xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
1078
 xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
15111 schaersvoo 1079
 var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
1080
 var no_color = 'rgba(255,255,255,0)';var dragging = false;\
1081
 if( obj.use_affine != 0 || obj.angle != 0 ){\
1082
  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)';\
1083
 };\
1084
 if( obj.once ){\
1085
  obj.once = false;\
1086
  switch(obj.onclick){\
1087
   case 2:\
1088
    if(isTouch){\
1089
     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);\
1090
     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);\
1091
     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);\
1092
     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 1093
    } else {\
15111 schaersvoo 1094
     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);\
1095
     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);\
1096
     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);\
1097
    };\
1098
    break;\
1099
   case 1:\
16844 bpr 1100
    if(isTouch){\
15111 schaersvoo 1101
     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 1102
    } else {\
15111 schaersvoo 1103
     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);\
1104
    };\
1105
    break;\
1106
   case 3:\
16844 bpr 1107
    if(isTouch){\
15111 schaersvoo 1108
     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 1109
    } else {\
15111 schaersvoo 1110
     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);\
1111
    };\
1112
    break;\
1113
   case 4:slidergroup[obj.object_cnt] = obj;break;\
1114
   case 5:slidergroup[obj.object_cnt] = obj;\
1115
    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);\
1116
    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);\
1117
    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);\
1118
    break;\
1119
   default: break;\
1120
  };\
1121
 };\
1122
 return;\
16642 schaersvoo 1123
};",mathjax);
15111 schaersvoo 1124
 
1125
/*
1126
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));\
1127
*/
1128
break;
1129
 
1130
case DRAW_SGRAPH:
1131
/*
1132
 xstart = given
1133
 ystart = given
1134
 sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
1135
*/
1136
fprintf(js_include_file,"\n/* draw sgraph */\
1137
var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
1138
 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);};\
1139
 var ctx = obj.getContext(\"2d\");\
1140
 ctx.font = fontfamily;\
1141
 var minor_opacity = 0.8*opacity;\
1142
 ctx.clearRect(0,0,xsize,ysize);\
1143
 var zero_x = 0.1*xsize;\
1144
 var zero_y = 0.9*ysize;\
1145
 var snor_x;var snor_y;\
1146
 if( xstart != xmin){\
1147
  snor_x = 0.1*xsize;\
16844 bpr 1148
 }else{\
15111 schaersvoo 1149
  snor_x = 0;\
1150
  xstart = xmin;\
1151
 };\
1152
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1153
 ctx.lineWidth = 2;\
1154
 ctx.beginPath();\
1155
 ctx.moveTo(xsize,zero_y);\
1156
 ctx.lineTo(zero_x,zero_y);\
1157
 ctx.lineTo(zero_x,0);\
1158
 ctx.stroke();\
1159
 ctx.closePath();\
1160
 ctx.beginPath();\
1161
 ctx.moveTo(zero_x,zero_y);\
1162
 ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
1163
 ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
1164
 ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
1165
 ctx.lineTo(zero_x + snor_x,zero_y);\
1166
 ctx.stroke();\
1167
 ctx.closePath();\
1168
 ctx.beginPath();\
1169
 var num = xstart;\
1170
 var flipflop = 1;\
1171
 var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
1172
 var txtsize;var txt_marge=step_x - 5;\
1173
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1174
  txtsize = ctx.measureText(num).width;\
1175
  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
1176
  if( flipflop == 1){\
1177
   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
16844 bpr 1178
  } else {\
15111 schaersvoo 1179
   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
1180
  };\
1181
  num = num + xmajor;\
1182
 };\
1183
 ctx.stroke();\
1184
 ctx.closePath();\
1185
 ctx.lineWidth = 1;\
1186
 ctx.beginPath();\
1187
 for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1188
   ctx.moveTo(x,zero_y);\
1189
   ctx.lineTo(x,0);\
1190
 };\
1191
 ctx.stroke();\
1192
 ctx.closePath();\
1193
 if( xminor > 1){\
1194
  ctx.lineWidth = 0.5;\
1195
  ctx.beginPath();\
1196
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1197
  var minor_step_x = step_x / xminor;\
1198
  var nx;\
1199
  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
1200
    num = 1;\
1201
    for(var p = 1 ; p < xminor ; p++){\
1202
     nx = x + num*minor_step_x;\
1203
     ctx.moveTo(nx,zero_y);\
1204
     ctx.lineTo(nx,0);\
1205
     num++;\
1206
    };\
1207
  };\
1208
  ctx.stroke();\
1209
  ctx.closePath();\
1210
  ctx.beginPath();\
1211
  ctx.lineWidth = 2;\
1212
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1213
  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
1214
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
1215
  };\
1216
  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
1217
   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
1218
  };\
1219
  ctx.stroke();\
1220
  ctx.closePath();\
1221
  ctx.lineWidth = 0.5;\
1222
 };\
1223
 xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
1224
 if( ystart != ymin){\
1225
  snor_y = 0.1*ysize;\
16844 bpr 1226
 } else {\
15111 schaersvoo 1227
  snor_y = 0;\
1228
  ystart = ymin;\
1229
 };\
1230
 ctx.lineWidth = 2;\
1231
 ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1232
 ctx.beginPath();\
1233
 ctx.moveTo(zero_x,zero_y);\
1234
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
1235
 ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
1236
 ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
1237
 ctx.lineTo(zero_x,zero_y - snor_y);\
1238
 ctx.stroke();\
1239
 ctx.closePath();\
1240
 ctx.beginPath();\
1241
 ctx.lineWidth = 1;\
1242
 num = ystart;\
1243
 var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
1244
 for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
1245
  ctx.moveTo(zero_x,y);\
1246
  ctx.lineTo(xsize,y);\
1247
  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
1248
  num = num + ymajor;\
1249
 };\
1250
 ctx.stroke();\
1251
 ctx.closePath();\
1252
 if( yminor > 1){\
1253
  ctx.lineWidth = 0.5;\
1254
  ctx.beginPath();\
1255
  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
1256
  var minor_step_y = step_y / yminor;\
1257
  var ny;\
1258
  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
1259
   num = 1;\
1260
   for(var p = 1 ;p < yminor;p++){\
1261
     ny = y + num*minor_step_y;\
1262
     ctx.moveTo(zero_x,ny);\
1263
     ctx.lineTo(xsize,ny);\
1264
     num++;\
1265
    };\
1266
  };\
1267
  ctx.stroke();\
1268
  ctx.closePath();\
1269
  ctx.lineWidth = 2;\
1270
  ctx.beginPath();\
1271
  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
1272
  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
1273
   ctx.moveTo(zero_x,y);\
1274
   ctx.lineTo(zero_x+12,y);\
1275
  };\
1276
  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
1277
   ctx.moveTo(zero_x,y);\
1278
   ctx.lineTo(zero_x+6,y);\
1279
  };\
1280
  ctx.stroke();\
1281
  ctx.closePath();\
1282
 };\
1283
 ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
1284
 if( typeof(legend%d)  !== 'undefined' ){\
1285
  ctx.globalAlpha = 1.0;\
1286
  var y_offset = 2*font_size;\
1287
  var txt;var txt_size;\
1288
  var x_offset = xsize - 2*font_size;\
1289
  var l_length = legend%d.length;var barcolor = new Array();\
1290
  if( typeof(legendcolors%d) !== 'undefined' ){\
1291
   for(var p = 0 ; p < l_length ; p++){\
1292
    barcolor[p] = legendcolors%d[p];\
1293
   };\
16844 bpr 1294
  } else {\
15111 schaersvoo 1295
   if( barcolor.length == 0 ){\
1296
    for(var p = 0 ; p < l_length ; p++){\
1297
     barcolor[p] = stroke_color;\
1298
    };\
1299
   };\
1300
  };\
1301
  for(var p = 0; p < l_length; p++){\
1302
   ctx.fillStyle = barcolor[p];\
1303
   txt = legend%d[p];\
1304
   txt_size = ctx.measureText(txt).width;\
1305
   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
1306
   y_offset = parseInt(y_offset + 1.5*font_size);\
1307
  };\
1308
 };\
1309
 if( typeof(xaxislabel) !== 'undefined' ){\
1310
   ctx.fillStyle = \'#000000\';\
1311
   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
1312
   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
1313
 };\
1314
 if( typeof(yaxislabel) !== 'undefined'){\
1315
   ctx.save();\
1316
   ctx.fillStyle = \'#000000\';\
1317
   var txt_size = ctx.measureText(yaxislabel).width;\
1318
   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
1319
   ctx.rotate(-0.5*Math.PI);\
1320
   ctx.fillText(yaxislabel,0,0);\
1321
   ctx.restore();\
1322
 };\
1323
};",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);
1324
break;
1325
 
1326
case DRAW_NUMBERLINE:
1327
fprintf(js_include_file,"\n/* draw numberline */\
1328
var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
1329
 var obj = create_canvas%d(canvas_type,xsize,ysize);\
1330
 var ctx = obj.getContext(\"2d\");\
1331
 ctx.lineWidth = linewidth || 1;\
1332
 ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
15313 schaersvoo 1333
 ctx.font = fontfamily || 'Arial 12px';\
15111 schaersvoo 1334
 var fontsize = parseInt(ctx.font);\
1335
 ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
1336
 x1 = x2px(x1);\
1337
 x0 = x2px(x0);\
1338
 y0 = y2px(y0);\
1339
 y1 = y2px(y1);\
1340
 var sub_devision = -1;\
1341
 if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
1342
 var ybase1 = parseInt( y0 + fontsize + 2 );\
1343
 var ybase2 = parseInt( ybase1 + fontsize + 2 );\
1344
 var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
1345
 var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
1346
 xmajor = x2px(xmajor) - x2px(0);\
1347
 var i;var len;var p;\
1348
 xminor = xmajor / xminor;\
1349
 ctx.beginPath();\
1350
 for(p = x0 ; p < x1 ; p = p + xmajor){\
1351
  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
1352
  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
1353
   ctx.moveTo(s,y0);\
1354
   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
1355
   i++;\
1356
  };\
1357
 };\
1358
 ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
1359
 ctx.closePath();\
1360
 ctx.stroke();\
1361
 if( use_axis_numbering >-1 ){\
1362
  var str = x_strings[use_axis_numbering];\
1363
  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1364
  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
1365
  ctx.beginPath();\
1366
  if( x_strings_up[use_axis_numbering] == null){\
1367
   for(var p = 0 ; p < len ; p = p+2){\
1368
    var x_nums = x2px(eval(str[p]));\
1369
    var x_text = str[p+1];\
1370
    corr = ctx.measureText(x_text).width;\
1371
    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1372
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
1373
   };\
16844 bpr 1374
  } else {\
15111 schaersvoo 1375
   for(var p = 0 ; p < len ; p = p+2){\
1376
    x_nums = x2px(eval(str[p]));\
1377
    x_text = str[p+1];\
1378
    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
1379
    ctx.save();\
1380
    ctx.translate(x_nums+0.5*fontsize, corr);\
1381
    ctx.rotate(-1.5708);\
1382
    ctx.fillText(x_text,0,0);\
1383
    ctx.restore();\
1384
   };\
1385
  }\
16844 bpr 1386
 } else {\
15111 schaersvoo 1387
  var corr;var num;var flipflop = 0;var off = ybase1;\
1388
  var prec = parseInt(Math.log(precision)/Math.log(10));\
1389
  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
1390
   num = (px2x(p)).toFixed(prec);\
1391
   corr = ctx.measureText(num).width;\
1392
   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
1393
   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
1394
  };\
1395
 };\
1396
};",canvas_root_id);
1397
break;
1398
 
1399
case DRAW_GRID:/* not used for userdraw */
1400
fprintf(js_include_file,"\n/* draw grid */\
1401
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){\
1402
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);};\
1403
var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
1404
if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
1405
ctx.save();\
1406
var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1407
ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
1408
var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
1409
ctx.font = font_family;\
1410
var barcolor = new Array();\
1411
var xstep = xsize*xmajor/(xmax - xmin);\
1412
var ystep = ysize*ymajor/(ymax - ymin);\
1413
var x2step = xstep / xminor;\
1414
var y2step = ystep / yminor;\
1415
var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
1416
if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
1417
if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
1418
ctx.beginPath();\
1419
ctx.lineWidth = line_width;\
1420
ctx.strokeStyle = stroke_color;\
1421
for(var p = zero_x ; p < xsize; p = p + xstep){\
1422
 ctx.moveTo(p,0);\
1423
 ctx.lineTo(p,ysize);\
1424
};\
1425
for(var p = zero_x ; p > 0; p = p - xstep){\
1426
 ctx.moveTo(p,0);\
1427
 ctx.lineTo(p,ysize);\
1428
};\
1429
for(var p = zero_y ; p < ysize; p = p + ystep){\
1430
 ctx.moveTo(0,p);\
1431
 ctx.lineTo(xsize,p);\
1432
};\
1433
for(var p = zero_y ; p > 0; p = p - ystep){\
1434
 ctx.moveTo(0,p);\
1435
 ctx.lineTo(xsize,p);\
1436
};\
1437
if( typeof(xaxislabel) !== 'undefined' ){\
1438
 ctx.save();\
15313 schaersvoo 1439
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1440
 var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
1441
 ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
1442
 ctx.restore();\
1443
};\
1444
if( typeof(yaxislabel) !== 'undefined' ){\
1445
 ctx.save();\
15313 schaersvoo 1446
 ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 1447
 var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
1448
 ctx.translate(zero_x+tics_length + font_size,corr);\
1449
 ctx.rotate(-0.5*Math.PI);\
1450
 ctx.fillText(yaxislabel,0,0);\
1451
 ctx.restore();\
1452
};\
1453
ctx.stroke();\
1454
ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
1455
 
1456
if( use_axis == 1 ){
1457
fprintf(js_include_file,"\
1458
 ctx.save();\
1459
 ctx.beginPath();\
1460
 ctx.strokeStyle = stroke_color;\
1461
 ctx.lineWidth = 0.6*line_width;\
1462
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1463
  ctx.moveTo(p,0);\
1464
  ctx.lineTo(p,ysize);\
1465
 };\
1466
 for(var p = zero_x ; p > 0; p = p - x2step){\
1467
  ctx.moveTo(p,0);\
1468
  ctx.lineTo(p,ysize);\
1469
 };\
1470
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1471
  ctx.moveTo(0,p);\
1472
  ctx.lineTo(xsize,p);\
1473
 };\
1474
 for(var p = zero_y ; p > 0; p = p - y2step){\
1475
  ctx.moveTo(0,p);\
1476
  ctx.lineTo(xsize,p);\
1477
 };\
1478
 ctx.stroke();\
1479
 ctx.closePath();\
1480
 ctx.beginPath();\
1481
 ctx.lineWidth = 2*line_width;\
1482
 ctx.strokeStyle = axis_color;\
1483
 ctx.moveTo(0,zero_y);\
1484
 ctx.lineTo(xsize,zero_y);\
1485
 ctx.moveTo(zero_x,0);\
1486
 ctx.lineTo(zero_x,ysize);\
1487
 ctx.stroke();\
1488
 ctx.closePath();\
1489
 ctx.lineWidth = line_width+0.5;\
1490
 ctx.beginPath();\
1491
 for(var p = zero_x ; p < xsize; p = p + xstep){\
1492
  ctx.moveTo(p,zero_y-tics_length);\
1493
  ctx.lineTo(p,zero_y+tics_length);\
1494
 };\
1495
 for(var p = zero_x ; p > 0; p = p - xstep){\
1496
  ctx.moveTo(p,zero_y-tics_length);\
1497
  ctx.lineTo(p,zero_y+tics_length);\
1498
 };\
1499
 for(var p = zero_y ; p < ysize; p = p + ystep){\
1500
  ctx.moveTo(zero_x-tics_length,p);\
1501
  ctx.lineTo(zero_x+tics_length,p);\
1502
 };\
1503
 for(var p = zero_y ; p > 0; p = p - ystep){\
1504
  ctx.moveTo(zero_x-tics_length,p);\
1505
  ctx.lineTo(zero_x+tics_length,p);\
1506
 };\
1507
 for(var p = zero_x ; p < xsize; p = p + x2step){\
1508
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1509
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1510
 };\
1511
 for(var p = zero_x ; p > 0; p = p - x2step){\
1512
  ctx.moveTo(p,zero_y-0.5*tics_length);\
1513
  ctx.lineTo(p,zero_y+0.5*tics_length);\
1514
 };\
1515
 for(var p = zero_y ; p < ysize; p = p + y2step){\
1516
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1517
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1518
 };\
1519
 for(var p = zero_y ; p > 0; p = p - y2step){\
1520
  ctx.moveTo(zero_x-0.5*tics_length,p);\
1521
  ctx.lineTo(zero_x+0.5*tics_length,p);\
1522
 };\
1523
 ctx.stroke();\
1524
 ctx.closePath();\
1525
 ctx.restore();");
1526
}
1527
 
1528
if( use_axis_numbering != -1 ){
1529
fprintf(js_include_file,"\
1530
 ctx.save();\
1531
 ctx.fillColor = axis_color;\
1532
 ctx.strokeStyle = axis_color;\
1533
 ctx.lineWidth = 2*line_width;\
1534
 ctx.font = font_family;\
1535
 var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
1536
 if( x_strings[use_axis_numbering] != null ){\
1537
  var str = x_strings[use_axis_numbering];\
1538
  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
1539
  ctx.beginPath();\
1540
  if( x_strings_up[use_axis_numbering] == null){\
1541
   for(var p = 0 ; p < len ; p = p+2){\
1542
    var x_nums = x2px(eval(str[p]));\
1543
    var x_text = str[p+1];\
1544
    corr = ctx.measureText(x_text).width;\
1545
    skip = 1.2*corr/xstep;\
1546
    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
1547
    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
1548
    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
1549
    ctx.moveTo(x_nums,zero_y - tics_length);\
1550
    ctx.lineTo(x_nums,zero_y + tics_length);\
1551
   };\
16844 bpr 1552
  } else {\
15111 schaersvoo 1553
   for(var p = 0 ; p < len ; p = p+2){\
1554
    var x_nums = x2px(eval(str[p]));\
1555
    var x_text = str[p+1];\
1556
    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
1557
    if( corr > ysize ){corr = ysize;};\
1558
    ctx.save();\
1559
    ctx.translate(x_nums+0.25*font_size, corr);\
1560
    ctx.rotate(-1.5708);\
1561
    ctx.fillText(x_text,0,0);\
1562
    ctx.restore();\
1563
    ctx.moveTo(x_nums,zero_y - tics_length);\
1564
    ctx.lineTo(x_nums,zero_y + tics_length);\
1565
   };\
1566
  };\
1567
  ctx.closePath();\
16844 bpr 1568
 } else {\
15111 schaersvoo 1569
  skip = 1;cnt = px2x(zero_x);\
1570
  prec = Math.log(precision)/(Math.log(10));\
1571
  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
1572
  for( var p = zero_x ; p < xsize ; p = p+xstep){\
1573
   if(skip == 0 ){\
1574
    disp_cnt = cnt.toFixed(prec);\
1575
    corr = ctx.measureText(disp_cnt).width;\
1576
    skip = parseInt(1.2*corr/xstep);\
1577
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1578
   } else {\
15111 schaersvoo 1579
    skip--;\
1580
   };\
1581
   cnt = cnt + xmajor;\
1582
  };\
1583
  cnt = px2x(zero_x);skip = 1;\
1584
  for( var p = zero_x ; p > 0 ; p = p-xstep){\
1585
   if(skip == 0 ){\
1586
    disp_cnt = cnt.toFixed(prec);\
1587
    corr = ctx.measureText(disp_cnt).width;\
1588
    skip = parseInt(1.2*corr/xstep);\
1589
    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
16844 bpr 1590
   } else {\
15111 schaersvoo 1591
    skip--;\
1592
   };\
1593
   cnt = cnt - xmajor;\
1594
  };\
1595
 };\
1596
 if( y_strings != null ){\
1597
  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
1598
  ctx.beginPath();\
1599
  for(var p = 0 ; p < len ; p = p+2){\
1600
   var y_nums = y2px(eval(y_strings[p]));\
1601
   var y_text = y_strings[p+1];\
1602
   corr = 2 + tics_length + ctx.measureText(y_text).width;\
1603
   if( corr > zero_x){corr = parseInt(zero_x+2); }\
1604
   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
1605
   ctx.moveTo(zero_x - tics_length,y_nums);\
1606
   ctx.lineTo(zero_x + tics_length,y_nums);\
1607
  };\
1608
  ctx.closePath();\
16844 bpr 1609
 } else {\
15111 schaersvoo 1610
  if(f_x == 1){ corr = 1.5*tics_length; }\
1611
  cnt = px2y(zero_y);skip = 1;\
1612
  for( var p = zero_y ; p < ysize ; p = p+ystep){\
1613
   if(skip == 0 ){\
1614
    skip = parseInt(1.4*font_size/ystep);\
1615
    disp_cnt = cnt.toFixed(prec);\
1616
    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1617
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1618
   } else {\
15111 schaersvoo 1619
    skip--;\
1620
   };\
1621
   cnt = cnt - ymajor;\
1622
  };\
1623
  corr = 0;cnt = px2y(zero_y);skip = 1;\
1624
  if(f_x == 1){ corr = 1.5*tics_length; }\
1625
  for( var p = zero_y ; p > 0 ; p = p-ystep){\
1626
   if(skip == 0 ){\
1627
    skip = parseInt(1.4*font_size/ystep);\
1628
    disp_cnt = cnt.toFixed(prec);\
1629
    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
1630
    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
16844 bpr 1631
   } else {\
15111 schaersvoo 1632
    skip--;\
1633
   };\
1634
   cnt = cnt + ymajor;\
1635
  };\
1636
 };\
1637
 ctx.stroke();\
1638
 ctx.restore();");
1639
}
1640
 
1641
if( legend_cnt != -1 ){
1642
fprintf(js_include_file,"ctx.save();\
1643
 ctx.globalAlpha = 1.0;\
15313 schaersvoo 1644
 ctx.font = \"bold \"+font_size+\"px Arial\";\
15111 schaersvoo 1645
 var y_offset = 2*font_size;\
1646
 var txt;var txt_size;\
1647
 var x_offset = xsize - 2*font_size;\
1648
 var l_length = legend0.length;\
1649
 if( typeof(legendcolors0) !== 'undefined' ){\
1650
  for(var p = 0 ; p < l_length ; p++){\
1651
    barcolor[p] = legendcolors0[p];\
1652
  };\
16844 bpr 1653
 } else {\
15111 schaersvoo 1654
  if( barcolor.length == 0 ){\
1655
   for(var p = 0 ; p < l_length ; p++){\
1656
    barcolor[p] = stroke_color;\
1657
   };\
1658
  };\
1659
 };\
1660
 for(var p = 0; p < l_length; p++){\
1661
  ctx.fillStyle = barcolor[p];\
1662
  txt = legend0[p];\
1663
  txt_size = ctx.measureText(txt).width;\
1664
  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
1665
  y_offset = parseInt(y_offset + 1.5*font_size);\
1666
 };\
1667
 ctx.restore();");
1668
}
1669
 
1670
if( barchart_cnt != 0 ){
1671
fprintf(js_include_file,"ctx.save();\
1672
 var num_barcharts = 0;\
1673
 var bar_name = eval('barchart_0');\
1674
 while( typeof(bar_name) !== 'undefined' ){\
1675
    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
1676
 };\
1677
 var bar_width = parseInt(0.8*x2step/(num_barcharts));\
1678
 for(var i=0 ; i< num_barcharts ; i++){\
1679
  bar_name = eval('barchart_'+i);\
1680
  var bar_x = new Array();\
1681
  var bar_y = new Array();\
1682
  var lb = bar_name.length;\
1683
  var idx = 0;\
1684
  var dx = parseInt(0.5*i*bar_width);\
1685
  for( var p = 0 ; p < lb ; p = p + 3 ){\
1686
   bar_x[idx] = x2px(bar_name[p]);\
1687
   bar_y[idx] = y2px(bar_name[p+1]);\
1688
   barcolor[idx] = bar_name[p+2];\
1689
   idx++;\
1690
  };\
1691
  ctx.globalAlpha = fill_opacity;\
1692
  for( var p = 0; p < idx ; p++ ){\
1693
   ctx.beginPath();\
1694
   ctx.strokeStyle = barcolor[p];\
1695
   ctx.fillStyle = barcolor[p];\
1696
   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
1697
   ctx.fill();\
1698
   ctx.stroke();\
1699
   ctx.closePath();\
1700
  };\
1701
 };\
1702
 ctx.restore();");
1703
}
1704
 
1705
if( linegraph_cnt != 0 ){
1706
fprintf(js_include_file,"ctx.save();\
1707
 ctx.globalAlpha = 1.0;\
1708
 var i = 0;\
1709
 var line_name = eval('linegraph_'+i);\
1710
 while ( typeof(line_name) !== 'undefined' ){\
1711
  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
1712
  ctx.lineWidth = parseInt(line_name[1]);\
1713
  if(line_name[2] == \"1\"){\
1714
   var d1 = parseInt(line_name[3]);\
1715
   var d2 = parseInt(line_name[4]);\
1716
   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
16844 bpr 1717
  } else {\
15111 schaersvoo 1718
  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
1719
  };\
1720
  var data_x = new Array();var data_y = new Array();\
1721
  var lb = line_name.length;var idx = 0;\
1722
  for( var p = 5 ; p < lb ; p = p + 2 ){\
1723
   data_x[idx] = x2px(line_name[p]);\
1724
   data_y[idx] = y2px(line_name[p+1]);\
1725
   idx++;\
1726
  };\
1727
  for( var p = 0; p < idx ; p++){\
1728
   ctx.beginPath();\
1729
   ctx.moveTo(data_x[p],data_y[p]);\
1730
   ctx.lineTo(data_x[p+1],data_y[p+1]);\
1731
   ctx.stroke();\
1732
   ctx.closePath();\
1733
  };\
1734
  i++;\
1735
  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
1736
 };\
1737
 ctx.restore();return;");
1738
}
1739
fprintf(js_include_file,"};");
1740
 
1741
break;
1742
 
1743
case DRAW_PIECHART:
1744
fprintf(js_include_file,"\n/* draw piecharts */\
1745
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1746
function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
1747
 var obj;\
1748
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1749
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1750
 } else {\
15111 schaersvoo 1751
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1752
 };\
1753
 var center_text = use_offset || 0;\
1754
 var ld = data_color_list.length;\
1755
 var sum = 0;\
1756
 var idx = 0;\
1757
 var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
1758
 var colors = new Array();\
1759
 var data = new Array();\
1760
 for(var p = 0;p < ld; p = p + 2){\
1761
  data[idx] = parseFloat(data_color_list[p]);\
1762
  sum = sum + data[idx];\
1763
  colors[idx] = data_color_list[p+1];\
1764
  idx++;\
1765
 };\
1766
 if( use_filled > 1 ){\
1767
  var i = 2;\
1768
  for(var p = 0 ;  p < idx ; p++){\
1769
   if(i > 5 ){ i = 2; };\
1770
   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
1771
  };\
1772
 };\
1773
 var ctx = obj.getContext(\"2d\");\
1774
 ctx.save();\
1775
 var angle;\
1776
 var angle_end = 0;\
1777
 var offset = Math.PI / 2;\
1778
 ctx.globalAlpha = fill_opacity;\
1779
 var angles = [];\
1780
 for(var p=0; p < idx; p++){\
1781
  ctx.beginPath();\
1782
  ctx.moveTo(x_center,y_center);\
1783
  angle = Math.PI * (2 * data[p] / sum);\
1784
  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
1785
  ctx.lineTo(x_center, y_center);\
1786
  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
1787
  ctx.fill();\
1788
  ctx.closePath();\
1789
  angles.push(angle_end + angle - offset);\
1790
  angle_end  = angle_end + angle;\
1791
 };\
1792
 if(typeof(legend0) !== 'undefined'){\
1793
  var legenda = eval(\"legend\"+legend_cnt);\
1794
  ctx.globalAlpha = 1.0;\
1795
  ctx.font = font_family;\
1796
  var y_offset = font_size;\
1797
  var x_offset = 0;\
1798
  var txt;var txt_size;\
1799
  for(var p = 0; p < idx; p++){\
1800
   ctx.fillStyle = colors[p];\
1801
   txt = legenda[p];\
1802
   txt_size = ctx.measureText(txt).width + 2;\
1803
   if(center_text == 4){\
1804
    ctx.save();\
1805
    ctx.translate(x_center, y_center);\
1806
    ctx.rotate(angles[p]);\
1807
    ctx.fillText(txt,radius-txt_size,0);\
1808
    ctx.restore();\
16844 bpr 1809
   } else {\
15111 schaersvoo 1810
    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
1811
    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
1812
    y_offset = parseInt(y_offset + 1.5*font_size);\
1813
   };\
1814
  };\
1815
 };\
1816
 ctx.restore();\
1817
};",canvas_root_id,canvas_root_id,canvas_root_id);
1818
break;
1819
 
1820
case DRAW_JSBOXPLOT:
1821
fprintf(js_include_file,"\n/* draw jsboxplots */\
1822
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1823
function statistics(data){\
1824
 var len = data.length;\
1825
 var min = 10000000;\
1826
 var max = -10000000;\
1827
 var sum = 0;var d;\
1828
 for(var i=0;i<len;i++){\
1829
  d = data[i];\
1830
  if(d < min){min = d;}else{if(d > max){max = d;};};\
1831
  sum+= parseFloat(data[i]);\
1832
 };\
1833
 var mean = parseFloat(sum/len);\
1834
 var variance = 0;\
1835
 for(var i=0;i<len;i++){\
1836
  d = data[i];\
1837
  variance += (d - mean)*(d - mean);\
1838
 };\
1839
 variance = parseFloat(variance / len);\
1840
 var std = Math.sqrt(variance);\
1841
 data.sort(function(a,b){return a - b;});\
1842
 var median;var Q1;var Q3;\
1843
 var half = Math.floor(0.5*len);\
1844
 var q1 = Math.floor(0.25*len);\
1845
 var q3 = Math.floor(0.75*len);\
1846
 var half = Math.floor(0.5*len);\
1847
 if(len %%2 == 1){\
1848
  median = data[half];\
1849
  Q1 = data[q1];\
1850
  Q3 = data[q3];\
16844 bpr 1851
 } else {\
15111 schaersvoo 1852
  median = (data[half - 1] + data[half] )/2;\
1853
  Q1 = (data[q1 - 1] + data[q1] )/2;\
1854
  Q3 = (data[q3 - 1] + data[q3] )/2;\
1855
 };\
1856
 return [min,Q1,median,Q3,max];\
1857
};");
1858
break;
1859
 
1860
case DRAW_BOXPLOT:
1861
fprintf(js_include_file,"\n/* draw boxplots */\
1862
if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
1863
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){\
1864
 var obj;\
1865
 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);};\
1866
 var ctx = obj.getContext(\"2d\");\
1867
 ctx.clearRect(0,0,xsize,ysize);\
1868
 ctx.save();\
1869
 ctx.lineWidth = line_width;\
1870
 ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1871
 var colors = new Array(2);\
1872
 colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
1873
 colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1874
 if( use_filled > 1 ){\
1875
   var pat = create_Pattern(0,0,3,colors[0]);\
1876
   all_fill_patterns[0] = pat;\
1877
   pat = create_Pattern(0,0,4,colors[1]);\
1878
   all_fill_patterns[1] = pat;\
1879
 };\
1880
 if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
1881
 var hh = 0.25*hw;\
1882
 switch(boxplot_source){\
1883
  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
1884
  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
1885
  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
1886
  default: break;\
1887
 };\
1888
 var min,Q1,median,Q3,max;\
1889
 if(xy == 1 ){\
1890
  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
1891
  hh = Math.abs(y2px(hh) - y2px(ystart));\
1892
  hw = Math.abs(y2px(hw) - y2px(ystart));\
1893
  cxy = y2px(cxy);\
1894
  ctx.beginPath();\
1895
  ctx.moveTo(min,cxy);\
1896
  ctx.lineTo(Q1,cxy);\
1897
  ctx.moveTo(Q3,cxy);\
1898
  ctx.lineTo(max,cxy);\
1899
  ctx.moveTo(min,cxy+hh);\
1900
  ctx.lineTo(min,cxy-hh);\
1901
  ctx.moveTo(max,cxy+hh);\
1902
  ctx.lineTo(max,cxy-hh);\
1903
  ctx.closePath();\
1904
  ctx.stroke();\
1905
  ctx.beginPath();\
1906
  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
1907
  ctx.closePath();\
1908
  if( use_filled != 0 ){\
1909
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1910
   ctx.fill();\
1911
  };\
1912
  ctx.stroke();\
1913
  ctx.beginPath();\
1914
  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
1915
  ctx.closePath();\
1916
  if( use_filled != 0 ){\
1917
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1918
   ctx.fill();\
1919
  };\
1920
  ctx.stroke();\
1921
 }else{\
1922
  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
1923
  hh = Math.abs(x2px(hh) - x2px(xstart));\
1924
  hw = Math.abs(x2px(hw) - x2px(xstart));\
1925
  cxy = x2px(cxy);\
1926
  ctx.beginPath();\
1927
  ctx.moveTo(cxy,min);\
1928
  ctx.lineTo(cxy,Q1);\
1929
  ctx.moveTo(cxy,Q3);\
1930
  ctx.lineTo(cxy,max);\
1931
  ctx.moveTo(cxy + hh,min);\
1932
  ctx.lineTo(cxy - hh,min);\
1933
  ctx.moveTo(cxy + hh,max);\
1934
  ctx.lineTo(cxy - hh,max);\
1935
  ctx.closePath;\
1936
  ctx.stroke();\
1937
  ctx.beginPath();\
1938
  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
1939
  ctx.closePath();\
1940
  if( use_filled != 0 ){\
1941
   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
1942
   ctx.fill();\
1943
  };\
1944
  ctx.stroke();\
1945
  ctx.beginPath();\
1946
  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
1947
  ctx.closePath();\
1948
  if( use_filled != 0 ){\
1949
   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
1950
   ctx.fill();\
1951
  };\
1952
  ctx.stroke();\
1953
 };\
1954
 ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
1955
break;
1956
 
1957
case DRAW_CENTERSTRING:
1958
fprintf(js_include_file,"\n/* draw centerstring */\
1959
var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
1960
 var obj;\
1961
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1962
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1963
 } else {\
15111 schaersvoo 1964
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1965
 };\
1966
 var ctx = obj.getContext(\"2d\");\
1967
 ctx.save();\
1968
 ctx.clearRect(0,0,xsize,ysize);\
1969
 ctx.font = font_family;\
1970
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
1971
 var stringwidth = ctx.measureText(text).width;\
1972
 var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
1973
 ctx.fillText(text,x,y2px(y));\
1974
 ctx.restore();\
1975
return;\
1976
};",canvas_root_id,canvas_root_id,canvas_root_id);
1977
break;
1978
 
1979
case DRAW_TEXTS:
1980
fprintf(js_include_file,"\n/* draw text */\
1981
var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
1982
 var obj;\
1983
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
1984
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 1985
 } else {\
15111 schaersvoo 1986
  obj = create_canvas%d(canvas_type,xsize,ysize);\
1987
 };\
1988
 var ctx = obj.getContext(\"2d\");\
1989
 if( font_family != 'null' ){\
1990
  ctx.font = font_family;\
16844 bpr 1991
 } else {\
15313 schaersvoo 1992
  ctx.font = font_size+'px Arial';\
15111 schaersvoo 1993
 };\
1994
 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;};};\
1995
 if(angle2 == 0 && angle != 0){\
1996
  ctx.save();\
1997
  if(use_rotate == 1 ){\
1998
  ctx.rotate(angle*Math.PI/180);};\
1999
  ctx.restore();\
2000
 };\
2001
 ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2002
 if(angle2 != 0){\
2003
  ctx.save();\
2004
  ctx.translate(x,y);\
2005
  ctx.rotate((360-angle2)*(Math.PI / 180));\
2006
  ctx.fillText(text,0,0);\
2007
  ctx.restore();\
16844 bpr 2008
 } else {\
15111 schaersvoo 2009
  ctx.fillText(text,x,y);\
2010
 };\
2011
 return;\
2012
};",canvas_root_id,canvas_root_id,canvas_root_id);
2013
break;
2014
 
2015
case DRAW_INPUTS:
2016
/* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
2017
fprintf(js_include_file,"\n/* draw static input fields */\
2018
if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
2019
var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
2020
var input = document.createElement(\"input\");\
2021
input.setAttribute(\"id\",\"canvas_input\"+num);\
2022
input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
2023
if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
2024
input.setAttribute(\"size\",size);\
2025
input.setAttribute(\"value\",value);\
2026
input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
2027
if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
2028
canvas_div.appendChild(input);\
2029
if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
2030
input_cnt++;\
2031
};\
2032
function center_input(id,x,y,css_class){\
2033
 var inp = document.getElementById(id);\
2034
 var pos = inp.getBoundingClientRect();\
2035
 var center_x = parseInt(x - 0.5*(pos.width));\
2036
 var center_y = parseInt(y - 0.5*(pos.height));\
2037
 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;\");}\
2038
 catch(e){console.log('error :'+e);return;};\
2039
};");
2040
break;
2041
 
2042
case DRAW_TEXTAREAS:
2043
fprintf(js_include_file,"\n/* draw text area inputfields */\
2044
var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
2045
var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
2046
var textarea = document.createElement(\"textarea\");\
2047
textarea.setAttribute(\"id\",\"canvas_input\"+num);\
2048
textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
2049
textarea.setAttribute(\"cols\",cols);\
2050
textarea.setAttribute(\"rows\",rows);\
2051
textarea.value = value;\
2052
if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
2053
canvas_div.appendChild(textarea);};");
2054
break;
2055
 
2056
case DRAW_PIXELS:
2057
fprintf(js_include_file,"\n/* draw pixel */\
2058
var draw_setpixel = function(x,y,color,opacity,pixelsize){\
2059
 var idx = 2000+Math.ceil(1000*(Math.random()));\
2060
 var canvas = create_canvas%d(idx,xsize,ysize);\
2061
 var d = 0.5*pixelsize;\
2062
 var ctx = canvas.getContext(\"2d\");\
2063
 if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
2064
 ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
2065
 ctx.clearRect(0,0,xsize,ysize);\
2066
 for(var p=0; p<x.length;p++){\
2067
  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
2068
 };\
2069
 ctx.fill();ctx.stroke();\
2070
};",canvas_root_id);
2071
break;
2072
 
2073
case DRAW_CLOCK:
2074
fprintf(js_include_file,"\n/* command clock */\
2075
var clock_canvas = create_canvas%d(%d,xsize,ysize);\
2076
var clock_ctx = clock_canvas.getContext(\"2d\");\
2077
var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
2078
 clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
2079
 clock_ctx.save();\
2080
 clock_ctx.globalAlpha = clock_bg_opacity;\
2081
 this.type = type || 0;\
2082
 this.interaction = interaction || 0;\
2083
 this.H = H;\
2084
 this.M = M;\
2085
 this.S = S;\
2086
 this.xc = xc || xsize/2;\
2087
 this.yc = yc || ysize/2;\
2088
 this.radius = radius || xsize/4;\
2089
 var font_size = parseInt(0.2*this.radius);\
2090
 this.H_color = h_color || \"black\";\
2091
 this.M_color = m_color || \"black\";\
2092
 this.S_color = s_color || \"black\";\
2093
 this.fg_color = fg_color || \"black\";\
2094
 this.bg_color = bg_color || \"white\";\
2095
 clock_ctx.translate(this.xc,this.yc);\
2096
 clock_ctx.beginPath();\
2097
 clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
2098
 clock_ctx.fillStyle = this.bg_color;\
2099
 clock_ctx.fill();\
2100
 clock_ctx.closePath();\
2101
 clock_ctx.beginPath();\
2102
 clock_ctx.font = font_size+\"px Arial\";\
2103
 clock_ctx.fillStyle = this.fg_color;\
2104
 clock_ctx.textAlign = \"center\";\
2105
 clock_ctx.textBaseline = 'middle';\
2106
 var angle;var x1,y1,x2,y2;\
2107
 var angle_cos;var angle_sin;\
2108
 clock_ctx.globalAlpha = clock_fg_opacity;\
2109
 switch(type){\
2110
 case 0:clock_ctx.beginPath();\
2111
 for(var p = 1; p <= 12 ; p++){\
2112
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2113
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2114
  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2115
  clock_ctx.moveTo(x1,y1);\
2116
  clock_ctx.lineTo(x2,y2);\
2117
 };\
2118
 for(var p = 1; p <= 60 ; p++){\
2119
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2120
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2121
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2122
  clock_ctx.moveTo(x1,y1);\
2123
  clock_ctx.lineTo(x2,y2);\
2124
 };\
2125
 clock_ctx.closePath();\
2126
 clock_ctx.stroke();\
2127
 break;\
2128
 case 1:\
2129
 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;\
2130
 case 2:\
2131
 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);};\
2132
 clock_ctx.beginPath();\
2133
 for(var p = 1; p <= 12 ; p++){\
2134
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
2135
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
2136
  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2137
  clock_ctx.moveTo(x1,y1);\
2138
  clock_ctx.lineTo(x2,y2);\
2139
 };\
2140
 for(var p = 1; p <= 60 ; p++){\
2141
  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
2142
  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
2143
  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
2144
  clock_ctx.moveTo(x1,y1);\
2145
  clock_ctx.lineTo(x2,y2);\
2146
 };\
2147
 clock_ctx.closePath();\
2148
 clock_ctx.stroke();\
2149
 break;\
2150
 };\
2151
 angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
2152
 clock_ctx.rotate(angle);\
2153
 clock_ctx.beginPath();\
2154
 clock_ctx.moveTo(-3, -2);\
2155
 clock_ctx.lineTo(-3, 2);\
2156
 clock_ctx.lineTo(this.radius * 0.6, 1);\
2157
 clock_ctx.lineTo(this.radius  * 0.6, -1);\
2158
 clock_ctx.fillStyle = this.H_color;\
2159
 clock_ctx.fill();\
2160
 clock_ctx.rotate(-angle);\
2161
 angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
2162
 clock_ctx.rotate(angle);\
2163
 clock_ctx.beginPath();\
2164
 clock_ctx.moveTo(-3, -2);\
2165
 clock_ctx.lineTo(-3, 2);\
2166
 clock_ctx.lineTo(this.radius  * 0.8, 1);\
2167
 clock_ctx.lineTo(this.radius  * 0.8, -1);\
2168
 clock_ctx.fillStyle = this.M_color;\
2169
 clock_ctx.fill();\
2170
 clock_ctx.rotate(-angle);\
2171
 angle = (this.S - 15) * 2 * Math.PI / 60;\
2172
 clock_ctx.rotate(angle);\
2173
 clock_ctx.beginPath();\
2174
 clock_ctx.moveTo(0,0);\
2175
 clock_ctx.lineTo(this.radius  * 0.9, 1);\
2176
 clock_ctx.lineTo(this.radius  * 0.9, -1);\
2177
 clock_ctx.strokeStyle = this.S_color;\
2178
 clock_ctx.stroke();\
2179
 clock_ctx.restore();\
2180
};",canvas_root_id,CLOCK_CANVAS);
2181
break;
2182
 
2183
case DRAW_LATTICE:
2184
fprintf(js_include_file,"\n/* draw lattice */\
2185
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){\
2186
 var obj;\
2187
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2188
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2189
 } else {\
15111 schaersvoo 2190
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2191
 };\
2192
 var ctx = obj.getContext(\"2d\");\
2193
 ctx.save();\
2194
 if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
2195
 var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
2196
 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;};\
2197
 ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
2198
 var radius = line_width;\
2199
 var x = 0;\
2200
 var y = 0;\
2201
 var x_step_px = xsize/(xmax-xmin);\
2202
 var y_step_px = ysize/(ymax-ymin);\
2203
 var xv1 = dx1*x_step_px;\
2204
 var yv1 = dy1*y_step_px;\
2205
 var xv2 = dx2*x_step_px;\
2206
 var yv2 = dy2*y_step_px;\
2207
 for(var p = 0; p < n1 ;p++){\
2208
  x = p*xv1 + x0;\
2209
  y = p*yv1 + y0;\
2210
  for(var c = 0; c < n2 ; c++){\
2211
   ctx.beginPath();\
2212
   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
2213
   ctx.fill();\
2214
   ctx.stroke();\
2215
   ctx.closePath();\
2216
  };\
2217
 };\
2218
 ctx.restore();\
2219
 return;\
2220
};",canvas_root_id,canvas_root_id,canvas_root_id);
2221
break;
2222
 
2223
case DRAW_XYLOGSCALE:
2224
fprintf(js_include_file,"\n/* draw xylogscale */\
2225
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){\
2226
 var obj;\
2227
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2228
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2229
 } else {\
15111 schaersvoo 2230
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2231
 };\
2232
 var ctx = obj.getContext(\"2d\");\
2233
 ctx.clearRect(0,0,xsize,ysize);\
2234
 ctx.save();\
2235
 var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
2236
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2237
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2238
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2239
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2240
 if(use_axis_numbering != -1){\
2241
  ctx.font = font_family;\
2242
  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
2243
  ymarge = parseInt(1.5*font_size);\
2244
  ctx.save();\
2245
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2246
  ctx.rect(0,0,xmarge,ysize);\
2247
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2248
  ctx.fill();\
2249
  ctx.restore();\
2250
 }else{xmarge = 0;ymarge = 0;};\
2251
 if( typeof(xaxislabel) !== 'undefined' ){\
2252
  ctx.save();\
15313 schaersvoo 2253
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2254
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2255
  corr =  ctx.measureText(xaxislabel).width;\
2256
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2257
  ctx.restore();\
2258
 };\
2259
 if( typeof(yaxislabel) !== 'undefined' ){\
2260
  ctx.save();\
15313 schaersvoo 2261
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2262
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2263
  corr = ctx.measureText(yaxislabel).width;\
2264
  ctx.translate(xmarge+font_size,corr+font_size);\
2265
  ctx.rotate(-0.5*Math.PI);\
2266
  ctx.fillText(yaxislabel,0,0);\
2267
  ctx.restore();\
2268
 };\
2269
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2270
 ctx.lineWidth = line_width;\
2271
 for(var p = x_min; p <= x_max ; p++){\
2272
  num = Math.pow(xlogbase,p);\
2273
  for(var i = 1 ; i < xlogbase ; i++){\
2274
   x_e = x2px(i*num);\
2275
   if( i == 1 ){\
2276
    ctx.lineWidth = line_width;\
2277
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2278
    if( use_axis_numbering != -1 && p > x_min){\
2279
      xtxt = xlogbase+'^'+p.toFixed(0);\
2280
      corr = 0.5*(ctx.measureText(xtxt).width);\
2281
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2282
    };\
2283
   }else{\
2284
    ctx.lineWidth = 0.2*line_width;\
2285
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2286
   };\
2287
   if( x_e >= xmarge ){\
2288
    ctx.beginPath();\
2289
    ctx.moveTo(x_e,0);\
2290
    ctx.lineTo(x_e,ysize - ymarge);\
2291
    ctx.stroke();\
2292
    ctx.closePath();\
2293
   };\
2294
  };\
2295
 };\
2296
 for(var p = y_min; p <= y_max ; p++){\
2297
  num = Math.pow(ylogbase,p);\
2298
  for(var i = 1 ; i < ylogbase ; i++){\
2299
   y_e = y2px(i*num);\
2300
   if( i == 1 ){\
2301
    ctx.lineWidth = line_width;\
2302
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2303
    if( use_axis_numbering != -1 && p > y_min){\
2304
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2305
    };\
2306
   }else{\
2307
    ctx.lineWidth = 0.2*line_width;\
2308
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2309
   };\
2310
   ctx.beginPath();\
2311
   ctx.moveTo(xmarge,y_e);\
2312
   ctx.lineTo(xsize,y_e);\
2313
   ctx.stroke();\
2314
   ctx.closePath();\
2315
  };\
2316
 };\
2317
 ctx.restore();\
2318
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2319
break;
2320
 
2321
case DRAW_XLOGSCALE:
2322
fprintf(js_include_file,"\n/* draw xlogscale */\
2323
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){\
2324
 var obj;\
2325
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2326
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2327
 } else {\
15111 schaersvoo 2328
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2329
 };\
2330
 var ctx = obj.getContext(\"2d\");\
2331
 ctx.clearRect(0,0,xsize,ysize);\
2332
 ctx.save();\
2333
 ctx.lineWidth = line_width;\
2334
 var prec = Math.log(precision)/Math.log(10);\
2335
 var x_min = Math.log(xmin)/Math.log(xlogbase);\
2336
 var x_max = Math.log(xmax)/Math.log(xlogbase);\
2337
 var y_min = 0;var y_max = ysize;var x_e;var corr;\
2338
 var xtxt;var ytxt;var num;var xmarge;var ymarge;\
2339
 if(use_axis_numbering != -1){\
2340
  ctx.font = font_family;\
2341
  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
2342
  ymarge = parseInt(1.5*font_size);\
2343
  ctx.save();\
2344
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2345
  ctx.rect(0,0,xmarge,ysize);\
2346
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2347
  ctx.fill();\
2348
  ctx.restore();\
2349
 }else{xmarge = 0;ymarge = 0;};\
2350
 if( typeof(xaxislabel) !== 'undefined' ){\
2351
  ctx.save();\
15313 schaersvoo 2352
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2353
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2354
  corr =  ctx.measureText(xaxislabel).width;\
2355
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2356
  ctx.restore();\
2357
 };\
2358
 if( typeof(yaxislabel) !== 'undefined' ){\
2359
  ctx.save();\
15313 schaersvoo 2360
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2361
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2362
  corr = ctx.measureText(yaxislabel).width;\
2363
  ctx.translate(xmarge+font_size,corr+font_size);\
2364
  ctx.rotate(-0.5*Math.PI);\
2365
  ctx.fillText(yaxislabel,0,0);\
2366
  ctx.restore();\
2367
 };\
2368
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2369
 ctx.lineWidth = line_width;\
2370
 for(var p = x_min; p <= x_max ; p++){\
2371
  num = Math.pow(xlogbase,p);\
2372
  for(var i = 1 ; i < xlogbase ; i++){\
2373
   x_e = x2px(i*num);\
2374
   if( i == 1 ){\
2375
     ctx.lineWidth = line_width;\
2376
     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2377
    if( use_axis_numbering != -1 && p > x_min ){\
2378
      xtxt = xlogbase+'^'+p.toFixed(0);\
2379
      corr = 0.5*(ctx.measureText(xtxt).width);\
2380
      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
2381
    };\
2382
   }else{\
2383
    ctx.lineWidth = 0.2*line_width;\
2384
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2385
   };\
2386
   if( x_e >= xmarge ){\
2387
    ctx.beginPath();\
2388
    ctx.moveTo(x_e,0);\
2389
    ctx.lineTo(x_e,ysize - ymarge);\
2390
    ctx.stroke();\
2391
    ctx.closePath();\
2392
   };\
2393
  };\
2394
 };\
2395
 var stepy = Math.abs(y2px(ymajor) - y2px(0));\
2396
 var minor_step = stepy / yminor;\
2397
 for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
2398
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2399
  ctx.lineWidth = line_width;\
2400
  ctx.beginPath();\
2401
  ctx.moveTo(xmarge,y);\
2402
  ctx.lineTo(xsize,y);\
2403
  ctx.stroke();\
2404
  ctx.closePath();\
2405
  if( use_axis_numbering != -1){\
2406
   ytxt = (px2y(y)).toFixed(prec);\
2407
   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
2408
  };\
2409
  for(var dy = 1 ; dy < yminor ; dy++){\
2410
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2411
   ctx.lineWidth = 0.2*line_width;\
2412
   ctx.beginPath();\
2413
   ctx.moveTo(xmarge,y+dy*minor_step);\
2414
   ctx.lineTo(xsize,y+dy*minor_step);\
2415
   ctx.stroke();\
2416
   ctx.closePath();\
2417
  };\
2418
 };\
2419
 ctx.restore();\
2420
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2421
break;
2422
 
2423
case DRAW_YLOGSCALE:
2424
fprintf(js_include_file,"\n/* draw ylogscale */\
2425
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){\
2426
 var obj;\
2427
 if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
2428
  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
16844 bpr 2429
 } else {\
15111 schaersvoo 2430
  obj = create_canvas%d(canvas_type,xsize,ysize);\
2431
 };\
2432
 var ctx = obj.getContext(\"2d\");\
2433
 ctx.clearRect(0,0,xsize,ysize);\
2434
 ctx.save();\
2435
 ctx.lineWidth = line_width;\
2436
 var y_min = Math.log(ymin)/Math.log(ylogbase);\
2437
 var y_max = Math.log(ymax)/Math.log(ylogbase);\
2438
 var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
2439
 if(use_axis_numbering != -1){\
2440
  ctx.font = font_family;\
2441
  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
2442
  ymarge = 2*font_size;\
2443
  ctx.save();\
2444
  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
2445
  ctx.rect(0,0,xmarge,ysize);\
2446
  ctx.rect(0,ysize-ymarge,xsize,ysize);\
2447
  ctx.fill();\
2448
  ctx.restore();\
2449
 }else{xmarge = 0;ymarge = 0;};\
2450
 if( typeof(xaxislabel) !== 'undefined' ){\
2451
  ctx.save();\
15313 schaersvoo 2452
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2453
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2454
  corr =  ctx.measureText(xaxislabel).width;\
2455
  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
2456
  ctx.restore();\
2457
 };\
2458
 if( typeof(yaxislabel) !== 'undefined' ){\
2459
  ctx.save();\
15313 schaersvoo 2460
  ctx.font = \"italic \"+font_size+\"px Arial\";\
15111 schaersvoo 2461
  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2462
  corr = ctx.measureText(yaxislabel).width;\
2463
  ctx.translate(xmarge+font_size,corr+font_size);\
2464
  ctx.rotate(-0.5*Math.PI);\
2465
  ctx.fillText(yaxislabel,0,0);\
2466
  ctx.restore();\
2467
 };\
2468
 ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
2469
 ctx.lineWidth = line_width;\
2470
 for(var p = y_min; p <= y_max ; p++){\
2471
  num = Math.pow(ylogbase,p);\
2472
  for(var i = 1 ; i < ylogbase ; i++){\
2473
   y_e = y2px(i*num);\
2474
   if( i == 1 ){\
2475
    ctx.lineWidth = line_width;\
2476
    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2477
    if( use_axis_numbering != -1 && p > y_min){\
2478
     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
2479
    };\
2480
   }else{\
2481
    ctx.lineWidth = 0.2*line_width;\
2482
    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2483
   };\
2484
   ctx.beginPath();\
2485
   ctx.moveTo(xmarge,y_e);\
2486
   ctx.lineTo(xsize,y_e);\
2487
   ctx.stroke();\
2488
   ctx.closePath();\
2489
  };\
2490
 };\
2491
 var stepx = Math.abs(x2px(xmajor) - x2px(0));\
2492
 var minor_step = stepx / xminor;\
2493
 var prec = Math.log(precision)/Math.log(10);\
2494
 var xtxt;var corr;var flip = 0;\
2495
 for(var x = stepx ; x < xsize ; x = x + stepx){\
2496
  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
2497
  ctx.lineWidth = line_width;\
2498
  ctx.beginPath();\
2499
  ctx.moveTo(x,ysize-ymarge);\
2500
  ctx.lineTo(x,0);\
2501
  ctx.stroke();\
2502
  ctx.closePath();\
2503
  if( use_axis_numbering != -1){\
2504
   xtxt = (px2x(x)).toFixed(prec);\
2505
   corr = 0.5*(ctx.measureText(xtxt).width);\
2506
   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
2507
   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
2508
  };\
2509
  for(var dx = 1 ; dx < xminor ; dx++){\
2510
   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
2511
   ctx.lineWidth = 0.2*line_width;\
2512
   ctx.beginPath();\
2513
   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
2514
   ctx.lineTo(x+dx*minor_step,0);\
2515
   ctx.stroke();\
2516
   ctx.closePath();\
2517
  };\
2518
 };\
2519
 ctx.restore();\
2520
};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
2521
break;
2522
 
2523
case ADD_USER_INPUTS:
2524
fprintf(js_include_file,"\n/* add_input_xy */\
2525
function add_input_xy(){\
2526
if( wims_status == \"done\" ){return;};\
2527
var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
2528
var input_xy_div = document.createElement('div');\
2529
input_xy_div.id = \"input_xy_div\";\
2530
tooltip_div.appendChild(input_xy_div);",canvas_root_id);
2531
 
2532
if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
2533
type=1;
17351 bpr 2534
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);
15111 schaersvoo 2535
}else{
2536
if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
2537
type=2;
17351 bpr 2538
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);
15111 schaersvoo 2539
}else{
2540
type=3;
2541
if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
17351 bpr 2542
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);
15111 schaersvoo 2543
}else{
2544
type=4;
2545
if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
17351 bpr 2546
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);
15111 schaersvoo 2547
}else{
2548
type=5;
2549
if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
17351 bpr 2550
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);
15111 schaersvoo 2551
}else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
2552
}}}}}
2553
 
2554
fprintf(js_include_file,"\
2555
var update_button = document.getElementById(\"update_button\");\
2556
var delete_button = document.getElementById(\"delete_button\");\
2557
update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
2558
delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
2559
};add_input_xy();");
2560
 
2561
switch(type){
2562
 case 1:
2563
fprintf(js_include_file,"\n/* add_input_xy */\
2564
function update_me(){\
15529 schaersvoo 2565
 var x = safe_eval(document.getElementById('userinput_x').value);\
2566
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2567
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2568
 return;\
2569
};");break;
2570
 case 2:
2571
fprintf(js_include_file,"\n/* add_input_xy */\
2572
function update_me(){\
15529 schaersvoo 2573
 var x = safe_eval(document.getElementById('userinput_x').value);\
2574
 var y = safe_eval(document.getElementById('userinput_y').value);\
2575
 var r = safe_eval(document.getElementById('userinput_r').value);\
15111 schaersvoo 2576
 r = scale_x_radius(r);\
2577
 userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2578
 return;\
2579
};");break;
2580
 case 3:
2581
fprintf(js_include_file,"\n/* add_input_xy */\
2582
function update_me(){\
2583
 var x,y;\
2584
 for(var p=1; p<3;p++){\
15529 schaersvoo 2585
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2586
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2587
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2588
 };\
2589
 return;\
2590
};");
2591
 break;
2592
 case 4:
2593
fprintf(js_include_file,"\n/* add_input_xy */\
2594
function update_me(){\
2595
 var x,y;\
2596
 for(var p=1; p<4;p++){\
15529 schaersvoo 2597
  x = safe_eval(document.getElementById('userinput_x'+p).value);\
2598
  y = safe_eval(document.getElementById('userinput_y'+p).value);\
15111 schaersvoo 2599
  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
2600
 };\
2601
 return;\
2602
};");
2603
 break;
2604
 case 5:
2605
 /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
2606
fprintf(js_include_file,"\n/* add_input_xy */\
2607
function update_me(){\
15529 schaersvoo 2608
 var x = safe_eval(document.getElementById('userinput_x').value);\
2609
 var y = safe_eval(document.getElementById('userinput_y').value);\
15111 schaersvoo 2610
 var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
2611
 userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
2612
 return;\
2613
};");
2614
 break;
2615
 default: canvas_error("hmmm, I've no idea...");break;
2616
}
2617
 
2618
break;
2619
 
2620
default:break;
2621
   }
2622
  }
2623
 }
2624
  return;
2625
}