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