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  1. #include "canvasdraw.h"
  2. /*
  3. collection of javascript utilities (with no configurable parameters)
  4. */
  5. void add_javascript_function(){
  6. #ifdef KATEX_INSTALLED
  7. char *mathjax="centered(xml_div,obj);";
  8. #else
  9. char *mathjax="setTimeout(function(){centered(xml_div,obj)},100);";
  10. #endif
  11. int i;
  12. int type;
  13. for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
  14. /*
  15. fprintf(stdout,"checking js_function[%d] = %d<br>",i,js_function[i]);
  16. */
  17.   if( js_function[i] == 1){
  18.     switch(i){
  19.       case JS_ARROWHEAD:
  20. /* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */
  21.         fprintf(js_include_file,"\n/* draw an arrowhead on object ; arrowhead on (x:y) from direction (x0:y0) */\
  22. function draw_arrowhead(x,y,x0,y0,ctx){\
  23. var angle = Math.atan2(x - x0,y - y0) + Math.PI;\
  24. var pie = Math.PI/6;\
  25. ctx.save();\
  26. ctx.fillStyle=ctx.strokeStyle;\
  27. ctx.beginPath();\
  28. ctx.moveTo(x,y);\
  29. ctx.moveTo(x - (arrow_head * Math.sin(angle - pie)),y - (arrow_head * Math.cos(angle - pie)));\
  30. ctx.lineTo(x,y);\
  31. ctx.lineTo(x - (arrow_head * Math.sin(angle + pie)),y - (arrow_head * Math.cos(angle + pie)));\
  32. ctx.closePath();\
  33. ctx.stroke();\
  34. ctx.fill();\
  35. ctx.restore();\
  36. };");
  37.         break;
  38.       case JS_LOAD_IMAGE:
  39.         fprintf(js_include_file,"\n/* get_image_from_url */\
  40. var image_cnt = 0;\
  41. if( typeof(image_patterns) !== 'object'){var image_patterns = [];};\
  42. var get_image_from_url = function(url){\
  43. var idx = Math.ceil(1000*(Math.random()));\
  44. var canvas = create_canvas%d(idx,xsize,ysize);\
  45. canvas.style.visibility = 'hidden';\
  46. var ctx = canvas.getContext(\"2d\");\
  47. var img = new Image();\
  48. img.src = url;\
  49. img.onload = function(){\
  50.  var pat = ctx.createPattern(img,\"repeat\");\
  51.  image_patterns.push(pat);\
  52. };\
  53. };",canvas_root_id);
  54.         break;
  55.       case JS_SAFE_EVAL:
  56. /* to avoid easy js-code injection...but is it a real problem ? */
  57.         fprintf(js_include_file," \n/* add safe eval function */function safe_eval(exp){\
  58. exp = exp.replace(/pi/g,'3.14159');\
  59. if(exp.indexOf('^') != -1){\
  60.  exp = exp.replace(/[a-zA-Z]/g,' ');\
  61.  exp = exp.replace(/\\*10\\^-/g,'e-');\
  62.  exp = exp.replace(/\\*10\\^/g,'e+');\
  63.  exp = exp.replace(/10\\^-/g,'1e-');exp = exp.replace(/10\\^/g,'1e+');\
  64.  exp = eval(exp);\
  65.  if(isNaN(exp)){alert(\"invalid input\\ntry just a real number \\ne.g. no calculations...\");return null;}\
  66.  return exp;\
  67. };\
  68. var reg = /(?:[a-z$_][a-z0-9$_]*)|(?:[;={}\\[\\]\"'!&<>^\\\\?:])/ig;\
  69. var valid = true;\
  70. exp = exp.replace(reg,function($0){\
  71.  if(Math.hasOwnProperty($0)){\
  72.   return \"Math.\"+$0;\
  73.  } else {\
  74.   valid = false;\
  75.  }\
  76. }\
  77. );\
  78. if( !valid ){\
  79.  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
  80. } else {\
  81.  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
  82. };\
  83. return exp;\
  84. };");
  85.         break;
  86.       case JS_RAWMATH:
  87.         fprintf(js_include_file,"\n/* add_rawmath() */\
  88. function rawmath(i){\
  89. i=i.toLowerCase();\
  90. i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
  91. if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
  92. if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
  93. i=i.replace(/\\*\\*/g,\"*\");\
  94. if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
  95. var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
  96. var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
  97. var cntl = 0;var cntr = 0;\
  98. var len = i.length;\
  99. for( var p = 0;p < len; p++){\
  100.  if(i.charAt(p) == '('){cntl++;}\
  101.  if(i.charAt(p) == ')'){cntr++;}\
  102. };\
  103. if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
  104. for(var p = 0; p < 12 ; p++){\
  105.  for(var d = 0; d < 12 ; d++){\
  106.   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
  107.    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
  108.   };\
  109.   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
  110.    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
  111.   };\
  112.  };\
  113. };\
  114. if(i.indexOf(\"(\")!=-1){\
  115.  for(var p = 0;p < 12; p++){\
  116.   if(i.indexOf(cons[p]+\"(\")!=-1){\
  117.    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
  118.   };\
  119.   if(i.indexOf(\")\"+cons[p])!=-1){\
  120.    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
  121.   };\
  122.  };\
  123.  i = i.replace(/\\)\\(/g,\")*(\");\
  124. };\
  125. return i;\
  126. };");
  127.         break;
  128.       case JS_PLOT:
  129.         fprintf(js_include_file,"\n/* jsplot() */\
  130. var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
  131. function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
  132. var obj = create_canvas%d(canvas_type,xsize,ysize);\
  133. var ctx = obj.getContext(\"2d\");\
  134. ctx.clearRect(0,0,xsize,ysize);\
  135. animation_funs = funs.length;\
  136. function eval_jsmath(x,func){return parseFloat(eval(func));};\
  137. if(origin == 0 ){\
  138.  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
  139.  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
  140.  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
  141.  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
  142. };\
  143. x_anim_points = [];y_anim_points = [];var idx=0;\
  144. if( use_parametric == 1){\
  145.  for(var i = 0 ; i < animation_funs; i=i+2){\
  146.   funs[i] = funs[i].replace(/t/g,'x');\
  147.   funs[i+1] = funs[i+1].replace(/t/g,'x');\
  148.   funs[i] = funs[i].replace(/xan/g,'tan');\
  149.   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
  150.   var fun_x = to_js_math(funs[i]);\
  151.   var fun_y = to_js_math(funs[i+1]);\
  152.   if(fun_x == null || fun_y == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
  153.   try{ parseFloat( eval_jsmath( px2x(0),fun_x ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
  154.   ctx.lineWidth = linewidth[i] || linewidth;\
  155.   if(opacity[i]>1){opacity[i]=0.00392*opacity[i];}\
  156.   ctx.strokeStyle = \"rgba(\"+color[i]+\",\"+opacity[i]+\")\";\
  157.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  158.   var y1;var x1;var y2;var x2;\
  159.   ctx.beginPath();\
  160.   var tmin = trange[0];var tmax = trange[1];\
  161.   var step = parseFloat((tmax - tmin)/plotsteps);\
  162.   for(var p = tmin ; p < tmax; p = p+step ){\
  163.    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
  164.    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
  165.    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
  166.    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
  167.    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
  168.     ctx.moveTo(x1,y1);\
  169.     ctx.lineTo(x2,y2);\
  170.     ctx.moveTo(x1,y1);\
  171.     ctx.lineTo(x2,y2);\
  172.   };\
  173.   ctx.closePath();\
  174.   ctx.stroke();\
  175.  };\
  176.  animation_funs = 0.5*animation_funs;\
  177. }else{\
  178.  for(var i = 0 ; i < animation_funs; i++){\
  179.   var fun = to_js_math(funs[i]);\
  180.   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;};\
  181.   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;};\
  182.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  183.   ctx.lineWidth = linewidth[i] || linewidth;\
  184.   if(opacity[i]>1){opacity[i]=0.00392*opacity[i];}\
  185.   ctx.strokeStyle='rgba('+color[i] +','+opacity[i] +')';\
  186.   var y1;var x1;var y2;var x2;\
  187.   ctx.beginPath();\
  188.   for(var p = 0 ; p<xsize;p++){\
  189.    x1 = px2x(p);\
  190.    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
  191.    x2 = px2x(p+1);\
  192.    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
  193.    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
  194.    if(Math.abs(y2-y1) < ysize ){\
  195.     ctx.moveTo(p,y1);\
  196.     ctx.lineTo(p+1,y2);\
  197.    };\
  198.   };\
  199.   ctx.closePath();\
  200.   ctx.stroke();\
  201.  };\
  202. };\
  203. if( use_animate == 1 ){animation_steps = idx;animate_this();}\
  204. };",canvas_root_id);
  205.         break;
  206.       case JS_MATH:
  207. /* 5/2024 added exp -> e^ -> (2.718281828459045)^ */
  208.         fprintf(js_include_file,"\n/* to_js_math() */\
  209. function to_js_math(math_fun){\
  210. if(math_fun == null){return;};\
  211. var infun=[\"exp\",\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
  212. var outfun=[\"(2.718281828459045)^\",\"Math.sqrt\",\"Math.pow\",\"Math.asin\",\"Math.acos\",\"Math.atan\",\"Math.log\",\"(3.14159265358979)\",\"Math.abs\",\"Math.sin\",\"Math.cos\",\"Math.tan\",\"(2.718281828459045)\"];\
  213. var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
  214. for(var p=0 ; p < len ; p++){\
  215.  in_fun = infun[p];   In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
  216.  if(math_fun.indexOf(in_fun) != -1){\
  217.   if(in_fun == \"^\"){\
  218.    var tab = [];var small_trick = \"___small_trick___\";\
  219.    while (math_fun.indexOf(\"(\") != -1){\
  220.     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
  221.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  222.    };\
  223.    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
  224.    while (math_fun.indexOf(small_trick) != -1){\
  225.     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)\");});\
  226.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  227.    };\
  228.   } else {\
  229.    while( math_fun.indexOf(in_fun) != -1 ){\
  230.     math_fun = math_fun.replace(in_fun,out_fun);\
  231.     math_fun = math_fun.replace(in_fun,In_Fun);\
  232.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  233.    };\
  234.   };\
  235.  };\
  236. };\
  237. for(var p=0 ; p < len ; p++){\
  238.  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
  239.  if(math_fun.indexOf(In_Fun) != -1 ){\
  240.   while(math_fun.indexOf(In_Fun) != -1){\
  241.    math_fun = math_fun.replace(In_Fun,in_fun);\
  242.    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  243.   };\
  244.  };\
  245. };\
  246. return math_fun;\
  247. };");
  248.         break;
  249.       case INTERACTIVE:
  250. /* 1/8/2022 NOTE : getMouse() code should run at maximum speed and not be bothered with all kind of fancy tests !!
  251.   1/8/2022 : latest improvements related to 'reponsiveness' will fatally lockup browsers in the pixel-by-pixel filling...at least in userdraw clickfill...*/
  252.         fprintf(js_include_file,"\n/* add mouse support */\
  253. var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));\
  254. var getMouse = function(e, element){\
  255.   var mx,my;var offsetX = 0,offsetY = 0;\
  256.   while( ( element = element.offsetParent) ){\
  257.     offsetX += element.offsetLeft;offsetY += element.offsetTop;\
  258.   };\
  259.   /*console.log('===');*/\
  260.   if(isTouch){\
  261.      mx = e.pageX - offsetX; my = e.pageY - offsetY;\
  262.   }else{\
  263.      mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);\
  264.      my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);\
  265.   };\
  266.   if( typeof(clickfill) === 'function'){ return {x: mx, y: my};}else{\
  267.   /* test if canvas_div is inside a scrollable */\
  268.   const scroll_parent = canvas_div.closest('.wims_scrollable');\
  269.   if (scroll_parent){\
  270.      mx = mx + scroll_parent.scrollLeft;\
  271.      my = my + scroll_parent.scrollTop;\
  272.   }\
  273.   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
  274.   /*console.log('mx before=' + mx);\
  275.   console.log('xsize='+xsize);\
  276.   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
  277.   mx = (mx * xsize / canvas_div.offsetWidth);\
  278.   /*console.log('mx after='+mx);*/\
  279.   my = (my * ysize / canvas_div.offsetHeight);\
  280.   return {x: mx, y: my};};\
  281. };");
  282.         break;
  283.       case USERDRAW_AND_ZOOM:
  284.         fprintf(js_include_file,"\n/* add zoom support for multidraw */\
  285. function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
  286. function x_zoom(px){\
  287.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  288.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  289. };\
  290. function y_zoom(py){\
  291.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  292.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  293. };\
  294. function r_zoom(r){\
  295.  return r*(xmin0/xmin);\
  296. };\
  297. var len = userdraw_x.length;\
  298. var x;var y;var r;\
  299. for(var p=0;p<len;p++){\
  300.  x = userdraw_x[p];\
  301.  y = userdraw_y[p];\
  302.  userdraw_x[p] = x_zoom(x);\
  303.  userdraw_y[p] = y_zoom(y);\
  304.  if( userdraw_radius[p] ){\
  305.   r = userdraw_radius[p];\
  306.   userdraw_radius[p] = r_zoom(r);\
  307.  };\
  308. };\
  309. };");
  310.         break;
  311.  
  312.       case DRAG_AND_ZOOM:
  313.         fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
  314. function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
  315. function x_zoom(px){\
  316.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  317.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  318. };\
  319. function y_zoom(py){\
  320.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  321.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  322. };\
  323. var len = dragstuff.shapes.length;\
  324. var shape;var L;var x;var y;\
  325. for(var p=0;p<len;p++){\
  326.  shape = dragstuff.shapes[p];\
  327.  L = shape.x.length;\
  328.  for(var i=0;i<L;i++){\
  329.   x = shape.x[i];\
  330.   y = shape.y[i];\
  331.   dragstuff.shapes[p].x[i] = x_zoom(x);\
  332.   dragstuff.shapes[p].y[i] = y_zoom(y);\
  333.  };\
  334. };\
  335. };");
  336.         break;
  337.       case JSPLOT_AND_ZOOM:
  338.         fprintf(js_include_file,"\n/* add zoom support for jscurves */\
  339. function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
  340.         break;
  341.       case JS_ZOOM:
  342.         fprintf(js_include_file,"\n/* add zoom support */\
  343. var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
  344. var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
  345. function redraw_canvas%d(key){\
  346. var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
  347. switch(key){\
  348.  case 0: xmin++;ymin++;xmax--;ymax--;break;\
  349.  case 1: xmin--;ymin--;xmax++;ymax++;break;\
  350.  case 2: xmin--;xmax--;break;\
  351.  case 3: xmin++;xmax++;break;\
  352.  case 4: ymin--;ymax--;break;\
  353.  case 5: ymax++;ymin++;break;\
  354.  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
  355.  default: break;\
  356. };\
  357. if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
  358. if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
  359. if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
  360. if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
  361. if( typeof(redraw_grid) === 'function'){redraw_grid();};\
  362. if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
  363. if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
  364. return;\
  365. };\
  366. canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
  367. canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
  368. canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
  369. function wheel_zoom(evt){\
  370. evt.preventDefault();\
  371. var key = 1;\
  372. if(evt.deltaY > 0 ){key = 0};\
  373. redraw_canvas%d(key);\
  374. return;\
  375. };\
  376. function check_zoom_or_pan(evt){\
  377. var mouse = getMouse(evt,zoomcanvas);\
  378. var my = mouse.y;\
  379. if(my < ysize - 30){ return; };\
  380. var mx = mouse.x;\
  381. var key = -1;\
  382. for(var p = 15 ; p < 106 ; p = p+15){\
  383.  key++;\
  384.  if(mx > xsize - p){\
  385.   redraw_canvas%d(key);\
  386.   return;\
  387.  };\
  388. };\
  389. return;\
  390. };",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
  391.         break;
  392.  
  393.       case DRAW_FILL_PATTERN:
  394.         fprintf(js_include_file,"\n /* add fill pattern */ \
  395. 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;\
  396. switch(type){\
  397.  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;\
  398.  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;\
  399.  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;\
  400.  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;\
  401.  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
  402.  default: break;\
  403. };\
  404. document.body.style.cursor = 'default';return pat;\
  405. };",canvas_root_id);
  406.         break;
  407.  
  408.       case JS_TRANSFORM_MOUSE:
  409. /* identify mouse coordinates on transformed objects using command affine */
  410.         fprintf(js_include_file,"\n/* translate mouse */\
  411. function transform_mouse(mx,my,obj){\
  412. if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
  413. var m = obj.affine_matrix;\
  414. var d = 1/(m[0]*m[3]-m[1]*m[2]);\
  415. 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]) ];\
  416. return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
  417.         break;
  418.       case JS_ROTATE_MOUSE:
  419. /*
  420. identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
  421. faster than transform matrix
  422. */
  423.         fprintf(js_include_file,"\n/* rotate mouse */\
  424. function rotate_mouse(mx,my,obj){\
  425. if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
  426. var cos = Math.cos(obj.angle);\
  427. var sin = Math.sin(obj.angle);\
  428. var xc = obj.rotation_center[0];\
  429. var yc = obj.rotation_center[1];\
  430. var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
  431. var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
  432. return {x:x_r,y:y_r};};");
  433.         break;
  434.       case JS_FIND_ANGLE:
  435.         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);};");
  436.         break;
  437.       case DRAG_EXTERNAL_IMAGE:
  438. /*
  439. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  440. reply is object{} and identical to reply from dragstuff library for drag&drop&click
  441. */
  442.         fprintf(js_include_file,"\n/* drag external images */\
  443. var external_ctx = external_canvas.getContext(\"2d\");\
  444. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  445. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  446. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  447. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  448. canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
  449. canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
  450. canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
  451. var selected_image = null;\
  452. if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
  453. if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
  454. if( typeof(slidergroup) == 'undefined' ) { var slidergroup = [];};\
  455. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
  456. var image = new Image();\
  457. image.src = URL;\
  458. slidergroup[object_cnt] = null;\
  459. image.onload = function(){\
  460.  if( sx < 1 ){ sx = 0; };\
  461.  if( sy < 1 ){ sy = 0; };\
  462.  if( swidth < 1 ){swidth = image.width;};\
  463.  if( sheight < 1 ){sheight = image.height;};\
  464.  if( width < 1 ){width = image.width;};\
  465.  if( height < 1 ){height = image.height;};\
  466.  if( resize == 1 ){\
  467.   if( swidth > image.width ){ swidth = image.width; };\
  468.   if( sheight > image.height){ sheight = image.height;};\
  469.   if( width > image.width ){ width = image.width; };\
  470.   if( height > image.height){ height = image.height;};\
  471.  };\
  472.  var img = new Array(18);\
  473.  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  474.  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
  475.  img[6] = x0;img[7] = y0;\
  476.  img[12] = ext_image_cnt;\
  477.  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
  478.  if(use_offset == 4 ){\
  479.   img[16] = 0.5*img[8];\
  480.   img[17] = 0.5*img[9];\
  481.   img[6]= parseInt(img[6] - img[16]);\
  482.   img[7]= parseInt(img[7] - img[17]);\
  483.  };\
  484.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  485.  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
  486.  ext_drag_images[ext_image_cnt] = img;\
  487.  ext_image_cnt++;\
  488. };\
  489. };\
  490. function dragstop(evt){\
  491. if(selected_image != null){\
  492.  var s_img = ext_drag_images[selected_image];\
  493.  dragdrop_reply[s_img[10]] = {type:s_img[0], object_cnt:s_img[10],x:s_img[6]+s_img[16],y:s_img[7]+s_img[17],r:s_img[8],angle:s_img[15],clicked:s_img[15]};\
  494. };\
  495. selected_image = null;return;\
  496. };\
  497. function dragxy(evt){\
  498. if( selected_image != null ){\
  499.  var s_img = ext_drag_images[selected_image];\
  500.  var mouse = getMouse(evt,external_canvas);\
  501.  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
  502.  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
  503.  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
  504.  s_img[6] = xy[0];s_img[7] = xy[1];\
  505.  ext_drag_images[selected_image] = s_img;\
  506.  external_ctx.clearRect(0,0,xsize,ysize);\
  507.  for(var i = 0; i < ext_image_cnt ; i++){\
  508.   var img = ext_drag_images[i];\
  509.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  510.  };\
  511. };\
  512. };\
  513. function setxy(evt){\
  514. if( ! selected_image ){\
  515.  var mouse = getMouse(evt,external_canvas);\
  516.  var xm = mouse.x;\
  517.  var ym = mouse.y;\
  518.  var img;var xmarge;var ymarge;\
  519.  for(var p = 0 ; p < ext_image_cnt ; p++){\
  520.   if( ext_drag_images[p] ){\
  521.    img = ext_drag_images[p];\
  522.    if( img[0] != 0 ){\
  523.     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
  524.     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
  525.      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
  526.       if( img[0] == 1){\
  527.        if( dragdrop_reply[img[10]].clicked == 1 ){\
  528.         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
  529.        }\
  530.        else\
  531.        {\
  532.         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
  533.        };\
  534.        external_ctx.lineWidth = 2;\
  535.        external_ctx.beginPath();\
  536.        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
  537.        external_ctx.closePath();\
  538.        external_ctx.stroke();\
  539.        return;\
  540.       }\
  541.       else\
  542.       {\
  543.        img[6] = xm;\
  544.        img[7] = ym;\
  545.        selected_image = p;\
  546.        dragxy(evt);\
  547.        ext_drag_images[p] = img;\
  548.       };\
  549.      };\
  550.     };\
  551.    };\
  552.   };\
  553.  };\
  554. } else {\
  555.  selected_image = null;\
  556. };\
  557. };");
  558.         break;
  559.       case DRAW_EXTERNAL_IMAGE:
  560. /*
  561. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  562. only drag_xy !
  563. snaptogrid | xsnaptogrid | ysnaptogrid works
  564. 14/5/2019
  565. on heavy styled wims (unice.fr etc problems with mouse?
  566. now uniform method of retreiving mouse coordinates getMouse()
  567. */
  568.         fprintf(js_include_file,"\n/* draw external images */\
  569. function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
  570. var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
  571. var image = new Image();\
  572. image.src = URL;\
  573. image.onload = function(){\
  574.  if( sx < 1 ){ sx = 0; };\
  575.  if( sy < 1 ){ sy = 0; };\
  576.  if( swidth < 1 ){swidth = image.width;};\
  577.  if( sheight < 1 ){sheight = image.height;};\
  578.  if( width < 1 ){width = image.width;};\
  579.  if( height < 1 ){height = image.height;};\
  580.  if( resize == 1 ){\
  581.   if( swidth > image.width ){ swidth = image.width; };\
  582.   if( sheight > image.height){ sheight = image.height;};\
  583.   if( width > image.width ){ width = image.width; };\
  584.   if( height > image.height){ height = image.height;};\
  585.  };\
  586.  var img = new Array(9);\
  587.  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
  588.  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
  589.  img[7] = width;img[8] = height;\
  590.  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
  591. };\
  592. };");
  593.         break;
  594.       case DRAW_BEZIER:
  595.         fprintf(js_include_file,"\n/* draw bezier curve */\
  596. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  597. 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){\
  598. var obj;\
  599. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  600.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  601. } else {\
  602.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  603. };\
  604. var ctx = obj.getContext(\"2d\");\
  605. ctx.save();\
  606. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  607. ctx.lineWidth = linewidth;\
  608. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  609. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  610. ctx.beginPath();\
  611. ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
  612. 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]));\
  613. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  614. 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;};\
  615. ctx.stroke();\
  616. ctx.restore();\
  617. };",canvas_root_id,canvas_root_id,canvas_root_id);
  618.         break;
  619.       case DRAW_GRIDFILL:/* not used for userdraw */
  620.         fprintf(js_include_file,"\n/* draw gridfill */\
  621. var grid_fill_pattern;\
  622. function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
  623. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  624. var fc = %d+canvas_type;\
  625. var obj = create_canvas%d(fc,xsize,ysize);\
  626. var ctx = obj.getContext('2d');\
  627. var x,y;\
  628. ctx.fillStyle='rgba(255,255,255,0.01)';\
  629. ctx.rect(0,0,xsize,ysize);\
  630. ctx.fill();\
  631. ctx.lineWidth = linewidth;\
  632. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  633. for( x = 0 ; x <= xsize ; x = x + dx ){\
  634.  ctx.beginPath();\
  635.  ctx.moveTo(x,0);\
  636.  ctx.lineTo(x,ysize);\
  637.  ctx.closePath();\
  638.  ctx.stroke();\
  639. };\
  640. for( y = 0 ; y <= ysize; y = y + dy ){\
  641.  ctx.beginPath();\
  642.  ctx.moveTo(0,y);\
  643.  ctx.lineTo(xsize,y);\
  644.  ctx.closePath();\
  645.  ctx.stroke();\
  646. };\
  647. if( use_userdraw ){\
  648.  grid_fill_pattern = ctx;\
  649. } else {\
  650.  setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);};return;\
  651. };",canvas_root_id,canvas_root_id);
  652.         break;
  653.       case DRAW_IMAGEFILL:/* not  used for userdraw */
  654.         fprintf(js_include_file,"\n/* draw imagefill */\
  655. function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
  656. var fc = %d+canvas_type;\
  657. var obj = create_canvas%d(fc,xsize,ysize);\
  658. var ctx = obj.getContext('2d');\
  659. var img = new Image();\
  660. img.src = URL;\
  661. obj.style.visibility = 'hidden';\
  662. img.onload = function(){\
  663.  if( use_scaling == 1 ){\
  664.   ctx.drawImage(img,x0,y0,xsize,ysize);\
  665.  }else{\
  666.   var w0 = img.width;var h0 = img.height;var w;var h;\
  667.   for( w = x0; w < xsize ; w = w + w0 ){\
  668.    for( h = y0; h < ysize; h = h + h0){\
  669.      ctx.drawImage(img,w,h,w0,h0);\
  670.    };\
  671.   };\
  672.  };\
  673.  if( use_userdraw ){\
  674.   image_pattern = ctx;\
  675.  } else {\
  676.   setTimeout(function(){ filltoborder( x0,y0,false,'red',canvas_type,true,ctx); },500);\
  677.  };\
  678. };\
  679. };",canvas_root_id,canvas_root_id);
  680.         break;
  681.       case DRAW_DOTFILL:/* not  used for userdraw */
  682.         fprintf(js_include_file,"\n/* draw dotfill */\
  683. var dot_fill_pattern;\
  684. function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
  685. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  686. var fc = %d+canvas_type;\
  687. var obj = create_canvas%d(fc,xsize,ysize);\
  688. var ctx = obj.getContext('2d');\
  689. var x,y;\
  690. ctx.fillStyle='rgba(255,255,255,0.01)';\
  691. ctx.rect(0,0,xsize,ysize);\
  692. ctx.fill();\
  693. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  694. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  695. for( x = 0 ; x < xsize ; x = x + dx ){\
  696.  for( y = 0 ; y < ysize ; y = y + dy ){\
  697.   ctx.beginPath();\
  698.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  699.   ctx.closePath();\
  700.   ctx.fill();\
  701.  };\
  702. };\
  703. if( use_userdraw ){\
  704.  dot_fill_pattern = ctx;\
  705. } else {\
  706. setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
  707. };\
  708. return;\
  709. };",canvas_root_id,canvas_root_id);
  710.         break;
  711.       case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
  712. /* use_offset
  713.  0=none;
  714.  1=yoffset
  715.  2=xoffset
  716.  3=xyoffset
  717.  4=centered
  718. */
  719.         fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
  720. function draw_subsup(ctx,x,y,txt,use_offset){\
  721. var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
  722. var m = 0.4*(ctx.measureText(txt).width);\
  723. var h = ctx.measureText('M').width;\
  724. switch(use_offset){\
  725.  case 0:break;\
  726.  case 1:y=y-h;break;\
  727.  case 2:x=x+h;break;\
  728.  case 3:x=x+h;y=y-h;break;\
  729.  case 4:x=x-m;break;\
  730.  default:break;\
  731. };\
  732. var alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';\
  733. function check_alpha(C){if(alphabet.indexOf(C) != -1){return 1;}else{return 0;};};\
  734. var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
  735. ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
  736. for( c = 0 ; c < len ;c++){\
  737.  C = txt.charAt(c);space = 0;\
  738.  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
  739.  else\
  740.  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
  741.  else\
  742.  if(C == ' ' ){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
  743.  else\
  744.  if( subsup == 1 &&  c == '-'){c = '\\u2212';ctx.font = s+'px Helvetica';}\
  745.  else\
  746.  if( subsup == 1 &&  c == '+'){c = '\\u002B';ctx.font = s+'px Helvetica';}\
  747.  else\
  748.  if( check_alpha(C) == 1 ){ctx.font = S+'px Helvetica';subsup = 0;baseline = 'middle';}\
  749.  else\
  750.  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
  751.  else{ ctx.font = S+'px Helvetica';};\
  752.  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
  753. };\
  754. ctx.stroke();\
  755. ctx.restore();\
  756. return;\
  757. };");
  758.         break;
  759.       case DRAW_TEXTFILL:/* not  used for userdraw */
  760.         fprintf(js_include_file,"\n/* draw textfill */\
  761. var text_fill_pattern;\
  762. function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
  763. var fc = %d+canvas_type;\
  764. var obj = create_canvas%d(fc,xsize,ysize);\
  765. var ctx = obj.getContext('2d');\
  766. ctx.font = fontfamily;\
  767. var dx = 2+(ctx.measureText(txt)).width;\
  768. var dy = 2+(ctx.measureText('MI')).width;\
  769. ctx.fillStyle='rgba(255,255,255,0.01)';\
  770. ctx.rect(0,0,xsize,ysize);\
  771. ctx.fill();\
  772. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  773. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  774. for(var x = 0 ; x <= xsize ; x = x + dx ){\
  775. for(var y = 0 ; y <= ysize ; y = y + dy ){\
  776.  ctx.fillText(txt, x, y);\
  777. };\
  778. };\
  779. if( use_userdraw ){\
  780. text_fill_pattern = ctx;\
  781. }\
  782. else\
  783. {\
  784. setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
  785. };\
  786. return;};",canvas_root_id,canvas_root_id);
  787.         break;
  788.       case DRAW_DIAMONDFILL:/* not used for userdraw */
  789.         fprintf(js_include_file,"\n/* draw_diamond fill */\
  790. var diamond_fill_pattern;\
  791. function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  792. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  793. if (dx < 0) dx = -dx; if (dy < 0) dy = -dy;\
  794. let nx = Math.ceil(xsize/dx), ny = Math.ceil(ysize/dy);\
  795. let i,m = (nx > ny) ? nx : ny;\
  796. var fc = %d+canvas_type;\
  797. var obj = create_canvas%d(fc,xsize,ysize);\
  798. var ctx = obj.getContext('2d');\
  799. ctx.lineWidth = linewidth;\
  800. ctx.fillStyle='rgba(255,255,255,0.01)';\
  801. ctx.rect(0,0,xsize,ysize);\
  802. ctx.fill();\
  803. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  804. ctx.beginPath();\
  805.  for(i = -2*m ; i<=m ; ++i){\
  806.    ctx.moveTo(0,i*dy);\
  807.    ctx.lineTo(m*dx,(i+m)*dy);\
  808.    ctx.moveTo(0,-i*dy);\
  809.    ctx.lineTo(m*dx,-(i+m)*dy);\
  810.  }\
  811. ctx.closePath();\
  812. ctx.stroke();\
  813. if( use_userdraw ){\
  814. diamond_fill_pattern = ctx;\
  815. }\
  816. else\
  817. {\
  818. setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
  819. };\
  820. return;\
  821. }",canvas_root_id,canvas_root_id);
  822.         break;
  823.       case DRAW_HATCHFILL:/* not used for userdraw */
  824.         fprintf(js_include_file,"\n/* draw hatch fill */\
  825. var hatch_fill_pattern;\
  826. function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  827. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  828. if (dx < 0) {dx = -dx; dy = -dy;}\
  829. let nx = Math.ceil(xsize/dx), ny = Math.ceil(ysize/Math.abs(dy));\
  830. let i,m = (nx > ny) ? nx : ny;\
  831. var fc = %d+canvas_type;\
  832. var obj = create_canvas%d(fc,xsize,ysize);\
  833. var ctx = obj.getContext('2d');\
  834. ctx.fillStyle='rgba(255,255,255,0.01)';\
  835. ctx.rect(0,0,xsize,ysize);\
  836. ctx.fill();\
  837. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  838. ctx.lineWidth = linewidth;\
  839. ctx.beginPath();\
  840.  for(i = -2*m ; i<=m ; ++i){\
  841.    ctx.moveTo(0,i*dy);\
  842.    ctx.lineTo(m*dx,(i+m)*dy);\
  843.  }\
  844. ctx.closePath();\
  845. ctx.stroke();\
  846. if( use_userdraw ){\
  847. hatch_fill_pattern = ctx;\
  848. }\
  849. else\
  850. {\
  851. setTimeout(function(){ filltoborder( x0,y0,false,color,canvas_type,true,ctx); },500);\
  852. };\
  853. return;};",canvas_root_id,canvas_root_id);
  854.         break;
  855.       case DRAW_LINES:/*  used for js-tracing */
  856.         fprintf(js_include_file,"\n/* draw lines */\
  857. function calc_line(x1,x2,y1,y2){\
  858. var marge = 2;\
  859. if(x1 < x2+marge && x1>x2-marge){\
  860.  return [x1,0,x1,ysize];\
  861. };\
  862. if(y1 < y2+marge && y1>y2-marge){\
  863.  return [0,y1,xsize,y1];\
  864. };\
  865. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  866. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  867. return [0,Y1,xsize,Y2];\
  868. };\
  869. var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
  870. ctx.save();\
  871. var line = new Array(4);\
  872. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  873. ctx.lineWidth = line_width;\
  874. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  875. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  876. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  877.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  878.  ctx.beginPath();\
  879.  ctx.moveTo(line[0],line[1]);\
  880.  ctx.lineTo(line[2],line[3]);\
  881.  ctx.closePath();\
  882.  ctx.stroke();\
  883.  }\
  884.  ctx.restore();\
  885.  return;\
  886. };");
  887.         break;
  888.       case DRAW_CROSSHAIRS:/*  used for tracing */
  889.         fprintf(js_include_file,"\n/* draw crosshairs  */\
  890. var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
  891. ctx.save();\
  892. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  893. ctx.lineWidth = line_width;\
  894. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  895. var x1,x2,y1,y2;\
  896. for(var p = 0 ; p < x_points.length ; p++ ){\
  897.  x1 = x_points[p] - crosshair_size;\
  898.  x2 = x_points[p] + crosshair_size;\
  899.  y1 = y_points[p] - crosshair_size;\
  900.  y2 = y_points[p] + crosshair_size;\
  901.  ctx.beginPath();\
  902.  ctx.moveTo(x1,y1);\
  903.  ctx.lineTo(x2,y2);\
  904.  ctx.closePath();\
  905.  ctx.stroke();\
  906.  ctx.beginPath();\
  907.  ctx.moveTo(x2,y1);\
  908.  ctx.lineTo(x1,y2);\
  909.  ctx.closePath();\
  910.  ctx.stroke();\
  911. }\
  912. ctx.restore();\
  913.  return;\
  914. };");
  915.         break;
  916.       case DRAW_VIDEO:/* not  used for userdraw */
  917.         fprintf(js_include_file,"\n/* draw video */\
  918. var draw_video = function(canvas_root_id,x,y,w,h,URL){\
  919. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  920. var video_div = document.createElement(\"div\");\
  921. canvas_div.appendChild(video_div);\
  922. video_div.style.position = \"absolute\";\
  923. video_div.style.left = x+\"px\";\
  924. video_div.style.top = y+\"px\";\
  925. video_div.style.width = w+\"px\";\
  926. video_div.style.height = h+\"px\";\
  927. var video = document.createElement(\"video\");\
  928. video_div.appendChild(video);\
  929. video.style.width = w+\"px\";\
  930. video.style.height = h+\"px\";\
  931. video.autobuffer = true;\
  932. video.controls = true;video.autoplay = false;\
  933. var src = document.createElement(\"source\");\
  934. src.type = \"video/mp4\";\
  935. src.src = URL;\
  936. video.appendChild(src);\
  937. video.load();\
  938. return;\
  939. };");
  940.         break;
  941.       case DRAW_AUDIO:/* not used for userdraw */
  942.         fprintf(js_include_file,"\n/* draw audio */\
  943. var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  944. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  945. var audio_div = document.createElement(\"div\");\
  946. canvas_div.appendChild(audio_div);\
  947. audio_div.style.position = \"absolute\";\
  948. audio_div.style.left = x+\"px\";\
  949. audio_div.style.top = y+\"px\";\
  950. audio_div.style.width = w+\"px\";\
  951. audio_div.style.height = h+\"px\";\
  952. var audio = document.createElement(\"audio\");\
  953. audio_div.appendChild(audio);\
  954. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  955. audio.autobuffer = true;\
  956. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
  957. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
  958. var src1 = document.createElement(\"source\");\
  959. src1.type = \"audio/ogg\";\
  960. src1.src = URL1;\
  961. audio.appendChild(src1);\
  962. var src2 = document.createElement(\"source\");\
  963. src2.type = \"audio/mpeg\";\
  964. src2.src = URL2;\
  965. audio.appendChild(src2);\
  966. audio.load();\
  967. return;\
  968. };");
  969.         break;
  970.       case DRAW_HTTP:/* not  used for userdraw */
  971.         fprintf(js_include_file,"\n/* draw http */\
  972. var draw_http = function(canvas_root_id,x,y,w,h,URL){\
  973. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  974. var http_div = document.createElement(\"div\");\
  975. var iframe = document.createElement(\"iframe\");\
  976. canvas_div.appendChild(http_div);\
  977. http_div.appendChild(iframe);\
  978. iframe.src = URL;\
  979. iframe.setAttribute(\"width\",w);\
  980. iframe.setAttribute(\"height\",h);\
  981. return;\
  982. };");
  983.         break;
  984.       case DRAW_XML:
  985. /*
  986. !! function draw_xml(object)
  987. !! produced by : DRAW_XML
  988. !! used by commands: katex,latex,mathml,html,obabel
  989. !! uses js-functions: calculate_size(xml_div),rad2deg(rad)
  990. !! user interaction: drag,onclick,slider
  991. !! reply function: read_dragdrop()
  992.  
  993. onclick=0; no interaction
  994. onclick=1: click
  995. onclick=2: drag ==> always centered (use_offset=4)
  996. onclick=3: slider + click on object
  997. onclick=4: slider (always active , keyword 'active' in slider params)
  998. onclick=5: slider + dragdrop
  999. xy:  drag_type = 0;
  1000. x:   drag_type = 1;
  1001. y:   drag_type = 2;
  1002.  
  1003. obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
  1004. */
  1005.  
  1006.         fprintf(js_include_file,"\n/* draw xml */\
  1007. function centered(xml_div,obj){\
  1008. var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
  1009. var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
  1010. obj.offset = [ ww , hh ];\
  1011. /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
  1012. xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
  1013. xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
  1014. xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
  1015. };\
  1016. function rad2deg(rad){return rad*180/(Math.PI);};\
  1017. if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
  1018. function draw_xml(obj){\
  1019. var mouse;var xy = [obj.x[0],obj.y[0]];\
  1020. var xml_div;\
  1021. 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};\
  1022. if( obj.once ){\
  1023.  xml_div = document.createElement('DIV');\
  1024.  canvas_div.appendChild(xml_div);\
  1025.  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
  1026.  xml_div.id = 'xml_div'+obj.id;\
  1027.  xml_div.innerHTML = obj.mathml;\
  1028.  xml_div.classList.add('canvasdraw_xml');\
  1029.  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
  1030.  xml_div.style.font = obj.fontfamily;\
  1031.  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]) ];};\
  1032.  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
  1033. } else {\
  1034.  xml_div = document.getElementById('xml_div'+obj.id );\
  1035. };\
  1036. if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
  1037. /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
  1038. xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
  1039. xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
  1040. xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
  1041. var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
  1042. var no_color = 'rgba(255,255,255,0)';var dragging = false;\
  1043. if( obj.use_affine != 0 || obj.angle != 0 ){\
  1044.  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)';\
  1045. };\
  1046. if( obj.once ){\
  1047.  obj.once = false;\
  1048.  switch(obj.onclick){\
  1049.   case 2:\
  1050.    if(isTouch){\
  1051.     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);\
  1052.     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);\
  1053.     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);\
  1054.     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);\
  1055.    } else {\
  1056.     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);\
  1057.     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);\
  1058.     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);\
  1059.    };\
  1060.    break;\
  1061.   case 1:\
  1062.    if(isTouch){\
  1063.     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);\
  1064.    } else {\
  1065.     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);\
  1066.    };\
  1067.    break;\
  1068.   case 3:\
  1069.    if(isTouch){\
  1070.     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);\
  1071.    } else {\
  1072.     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);\
  1073.    };\
  1074.    break;\
  1075.   case 4:slidergroup[obj.object_cnt] = obj;break;\
  1076.   case 5:slidergroup[obj.object_cnt] = obj;\
  1077.    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);\
  1078.    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);\
  1079.    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);\
  1080.    break;\
  1081.   default: break;\
  1082.  };\
  1083. };\
  1084. return;\
  1085. };",mathjax);
  1086.  
  1087. /*
  1088. 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));\
  1089. */
  1090.         break;
  1091.       case DRAW_SGRAPH:
  1092. /*
  1093.  xstart = given
  1094.  ystart = given
  1095.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  1096. */
  1097.         fprintf(js_include_file,"\n/* draw sgraph */\
  1098. var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  1099. 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);};\
  1100. var ctx = obj.getContext(\"2d\");\
  1101. ctx.font = fontfamily;\
  1102. var minor_opacity = 0.8*opacity;\
  1103. ctx.clearRect(0,0,xsize,ysize);\
  1104. var zero_x = 0.1*xsize;\
  1105. var zero_y = 0.9*ysize;\
  1106. var snor_x;var snor_y;\
  1107. if( xstart != xmin){\
  1108.  snor_x = 0.1*xsize;\
  1109. }else{\
  1110.  snor_x = 0;\
  1111.  xstart = xmin;\
  1112. };\
  1113. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1114. ctx.lineWidth = 2;\
  1115. ctx.beginPath();\
  1116. ctx.moveTo(xsize,zero_y);\
  1117. ctx.lineTo(zero_x,zero_y);\
  1118. ctx.lineTo(zero_x,0);\
  1119. ctx.stroke();\
  1120. ctx.closePath();\
  1121. ctx.beginPath();\
  1122. ctx.moveTo(zero_x,zero_y);\
  1123. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  1124. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  1125. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  1126. ctx.lineTo(zero_x + snor_x,zero_y);\
  1127. ctx.stroke();\
  1128. ctx.closePath();\
  1129. ctx.beginPath();\
  1130. var num = xstart;\
  1131. var flipflop = 1;\
  1132. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  1133. var txtsize;var txt_marge=step_x - 5;\
  1134. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1135.  txtsize = ctx.measureText(num).width;\
  1136.  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
  1137.  if( flipflop == 1){\
  1138.   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
  1139.  } else {\
  1140.   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
  1141.  };\
  1142.  num = num + xmajor;\
  1143. };\
  1144. ctx.stroke();\
  1145. ctx.closePath();\
  1146. ctx.lineWidth = 1;\
  1147. ctx.beginPath();\
  1148. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1149.   ctx.moveTo(x,zero_y);\
  1150.   ctx.lineTo(x,0);\
  1151. };\
  1152. ctx.stroke();\
  1153. ctx.closePath();\
  1154. if( xminor > 1){\
  1155.  ctx.lineWidth = 0.5;\
  1156.  ctx.beginPath();\
  1157.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1158.  var minor_step_x = step_x / xminor;\
  1159.  var nx;\
  1160.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  1161.    num = 1;\
  1162.    for(var p = 1 ; p < xminor ; p++){\
  1163.     nx = x + num*minor_step_x;\
  1164.     ctx.moveTo(nx,zero_y);\
  1165.     ctx.lineTo(nx,0);\
  1166.     num++;\
  1167.    };\
  1168.  };\
  1169.  ctx.stroke();\
  1170.  ctx.closePath();\
  1171.  ctx.beginPath();\
  1172.  ctx.lineWidth = 2;\
  1173.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1174.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1175.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  1176.  };\
  1177.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  1178.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  1179.  };\
  1180.  ctx.stroke();\
  1181.  ctx.closePath();\
  1182.  ctx.lineWidth = 0.5;\
  1183. };\
  1184. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  1185. if( ystart != ymin){\
  1186.  snor_y = 0.1*ysize;\
  1187. } else {\
  1188.  snor_y = 0;\
  1189.  ystart = ymin;\
  1190. };\
  1191. ctx.lineWidth = 2;\
  1192. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1193. ctx.beginPath();\
  1194. ctx.moveTo(zero_x,zero_y);\
  1195. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  1196. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  1197. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  1198. ctx.lineTo(zero_x,zero_y - snor_y);\
  1199. ctx.stroke();\
  1200. ctx.closePath();\
  1201. ctx.beginPath();\
  1202. ctx.lineWidth = 1;\
  1203. num = ystart;\
  1204. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  1205. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  1206.  ctx.moveTo(zero_x,y);\
  1207.  ctx.lineTo(xsize,y);\
  1208.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  1209.  num = num + ymajor;\
  1210. };\
  1211. ctx.stroke();\
  1212. ctx.closePath();\
  1213. if( yminor > 1){\
  1214.  ctx.lineWidth = 0.5;\
  1215.  ctx.beginPath();\
  1216.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1217.  var minor_step_y = step_y / yminor;\
  1218.  var ny;\
  1219.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  1220.   num = 1;\
  1221.   for(var p = 1 ;p < yminor;p++){\
  1222.     ny = y + num*minor_step_y;\
  1223.     ctx.moveTo(zero_x,ny);\
  1224.     ctx.lineTo(xsize,ny);\
  1225.     num++;\
  1226.    };\
  1227.  };\
  1228.  ctx.stroke();\
  1229.  ctx.closePath();\
  1230.  ctx.lineWidth = 2;\
  1231.  ctx.beginPath();\
  1232.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1233.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  1234.   ctx.moveTo(zero_x,y);\
  1235.   ctx.lineTo(zero_x+12,y);\
  1236.  };\
  1237.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  1238.   ctx.moveTo(zero_x,y);\
  1239.   ctx.lineTo(zero_x+6,y);\
  1240.  };\
  1241.  ctx.stroke();\
  1242.  ctx.closePath();\
  1243. };\
  1244. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  1245. if( typeof(legend%d)  !== 'undefined' ){\
  1246.  ctx.globalAlpha = 1.0;\
  1247.  var y_offset = 2*font_size;\
  1248.  var txt;var txt_size;\
  1249.  var x_offset = xsize - 2*font_size;\
  1250.  var l_length = legend%d.length;var barcolor = new Array();\
  1251.  if( typeof(legendcolors%d) !== 'undefined' ){\
  1252.   for(var p = 0 ; p < l_length ; p++){\
  1253.    barcolor[p] = legendcolors%d[p];\
  1254.   };\
  1255.  } else {\
  1256.   if( barcolor.length == 0 ){\
  1257.    for(var p = 0 ; p < l_length ; p++){\
  1258.     barcolor[p] = stroke_color;\
  1259.    };\
  1260.   };\
  1261.  };\
  1262.  for(var p = 0; p < l_length; p++){\
  1263.   ctx.fillStyle = barcolor[p];\
  1264.   txt = legend%d[p];\
  1265.   txt_size = ctx.measureText(txt).width;\
  1266.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  1267.   y_offset = parseInt(y_offset + 1.5*font_size);\
  1268.  };\
  1269. };\
  1270. if( typeof(xaxislabel) !== 'undefined' ){\
  1271.   ctx.fillStyle = \'#000000\';\
  1272.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  1273.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  1274. };\
  1275. if( typeof(yaxislabel) !== 'undefined'){\
  1276.   ctx.save();\
  1277.   ctx.fillStyle = \'#000000\';\
  1278.   var txt_size = ctx.measureText(yaxislabel).width;\
  1279.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  1280.   ctx.rotate(-0.5*Math.PI);\
  1281.   ctx.fillText(yaxislabel,0,0);\
  1282.   ctx.restore();\
  1283. };\
  1284. };",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);
  1285.         break;
  1286.       case DRAW_NUMBERLINE:
  1287. fprintf(js_include_file,"\n/* draw numberline */\
  1288. var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
  1289. var obj = create_canvas%d(canvas_type,xsize,ysize);\
  1290. var ctx = obj.getContext(\"2d\");\
  1291. ctx.lineWidth = linewidth || 1;\
  1292. ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
  1293. ctx.font = fontfamily || 'Arial 12px';\
  1294. var fontsize = parseInt(ctx.font);\
  1295. ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
  1296. x1 = x2px(x1);\
  1297. x0 = x2px(x0);\
  1298. y0 = y2px(y0);\
  1299. y1 = y2px(y1);\
  1300. var sub_devision = -1;\
  1301. if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
  1302. var ybase1 = parseInt( y0 + fontsize + 2 );\
  1303. var ybase2 = parseInt( ybase1 + fontsize + 2 );\
  1304. var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
  1305. var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
  1306. xmajor = x2px(xmajor) - x2px(0);\
  1307. var i;var len;var p;\
  1308. xminor = xmajor / xminor;\
  1309. ctx.beginPath();\
  1310. for(p = x0 ; p < x1 ; p = p + xmajor){\
  1311.  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
  1312.  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
  1313.   ctx.moveTo(s,y0);\
  1314.   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
  1315.   i++;\
  1316.  };\
  1317. };\
  1318. ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
  1319. ctx.closePath();\
  1320. ctx.stroke();\
  1321. if( use_axis_numbering >-1 ){\
  1322.  var str = x_strings[use_axis_numbering];\
  1323.  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1324.  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
  1325.  ctx.beginPath();\
  1326.  if( x_strings_up[use_axis_numbering] == null){\
  1327.   for(var p = 0 ; p < len ; p = p+2){\
  1328.    var x_nums = x2px(eval(str[p]));\
  1329.    var x_text = str[p+1];\
  1330.    corr = ctx.measureText(x_text).width;\
  1331.    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1332.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
  1333.   };\
  1334.  } else {\
  1335.   for(var p = 0 ; p < len ; p = p+2){\
  1336.    x_nums = x2px(eval(str[p]));\
  1337.    x_text = str[p+1];\
  1338.    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
  1339.    ctx.save();\
  1340.    ctx.translate(x_nums+0.5*fontsize, corr);\
  1341.    ctx.rotate(-1.5708);\
  1342.    ctx.fillText(x_text,0,0);\
  1343.    ctx.restore();\
  1344.   };\
  1345.  }\
  1346. } else {\
  1347.  var corr;var num;var flipflop = 0;var off = ybase1;\
  1348.  var prec = parseInt(Math.log(precision)/Math.log(10));\
  1349.  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
  1350.   num = (px2x(p)).toFixed(prec);\
  1351.   corr = ctx.measureText(num).width;\
  1352.   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1353.   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
  1354.  };\
  1355. };\
  1356. };",canvas_root_id);
  1357.         break;
  1358.       case DRAW_GRID:/* not used for userdraw */
  1359.         fprintf(js_include_file,"\n/* draw grid */\
  1360. 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){\
  1361. 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);};\
  1362. var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
  1363. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  1364. ctx.save();\
  1365. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1366. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  1367. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  1368. ctx.font = font_family;\
  1369. var barcolor = new Array();\
  1370. var xstep = xsize*xmajor/(xmax - xmin);\
  1371. var ystep = ysize*ymajor/(ymax - ymin);\
  1372. var x2step = xstep / xminor;\
  1373. var y2step = ystep / yminor;\
  1374. var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
  1375. if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
  1376. if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
  1377. ctx.beginPath();\
  1378. ctx.lineWidth = line_width;\
  1379. ctx.strokeStyle = stroke_color;\
  1380. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1381. ctx.moveTo(p,0);\
  1382. ctx.lineTo(p,ysize);\
  1383. };\
  1384. for(var p = zero_x ; p > 0; p = p - xstep){\
  1385. ctx.moveTo(p,0);\
  1386. ctx.lineTo(p,ysize);\
  1387. };\
  1388. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1389. ctx.moveTo(0,p);\
  1390. ctx.lineTo(xsize,p);\
  1391. };\
  1392. for(var p = zero_y ; p > 0; p = p - ystep){\
  1393. ctx.moveTo(0,p);\
  1394. ctx.lineTo(xsize,p);\
  1395. };\
  1396. if( typeof(xaxislabel) !== 'undefined' ){\
  1397. ctx.save();\
  1398. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1399. var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
  1400. ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
  1401. ctx.restore();\
  1402. };\
  1403. if( typeof(yaxislabel) !== 'undefined' ){\
  1404. ctx.save();\
  1405. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1406. var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
  1407. ctx.translate(zero_x+tics_length + font_size,corr);\
  1408. ctx.rotate(-0.5*Math.PI);\
  1409. ctx.fillText(yaxislabel,0,0);\
  1410. ctx.restore();\
  1411. };\
  1412. ctx.stroke();\
  1413. ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  1414.  
  1415.         if( use_axis == 1 ){
  1416.           fprintf(js_include_file,"\
  1417. ctx.save();\
  1418. ctx.beginPath();\
  1419. ctx.strokeStyle = stroke_color;\
  1420. ctx.lineWidth = 0.6*line_width;\
  1421. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1422.  ctx.moveTo(p,0);\
  1423.  ctx.lineTo(p,ysize);\
  1424. };\
  1425. for(var p = zero_x ; p > 0; p = p - x2step){\
  1426.  ctx.moveTo(p,0);\
  1427.  ctx.lineTo(p,ysize);\
  1428. };\
  1429. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1430.  ctx.moveTo(0,p);\
  1431.  ctx.lineTo(xsize,p);\
  1432. };\
  1433. for(var p = zero_y ; p > 0; p = p - y2step){\
  1434.  ctx.moveTo(0,p);\
  1435.  ctx.lineTo(xsize,p);\
  1436. };\
  1437. ctx.stroke();\
  1438. ctx.closePath();\
  1439. ctx.beginPath();\
  1440. ctx.lineWidth = 2*line_width;\
  1441. ctx.strokeStyle = axis_color;\
  1442. ctx.moveTo(0,zero_y);\
  1443. ctx.lineTo(xsize,zero_y);\
  1444. ctx.moveTo(zero_x,0);\
  1445. ctx.lineTo(zero_x,ysize);\
  1446. ctx.stroke();\
  1447. ctx.closePath();\
  1448. ctx.lineWidth = line_width+0.5;\
  1449. ctx.beginPath();\
  1450. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1451.  ctx.moveTo(p,zero_y-tics_length);\
  1452.  ctx.lineTo(p,zero_y+tics_length);\
  1453. };\
  1454. for(var p = zero_x ; p > 0; p = p - xstep){\
  1455.  ctx.moveTo(p,zero_y-tics_length);\
  1456.  ctx.lineTo(p,zero_y+tics_length);\
  1457. };\
  1458. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1459.  ctx.moveTo(zero_x-tics_length,p);\
  1460.  ctx.lineTo(zero_x+tics_length,p);\
  1461. };\
  1462. for(var p = zero_y ; p > 0; p = p - ystep){\
  1463.  ctx.moveTo(zero_x-tics_length,p);\
  1464.  ctx.lineTo(zero_x+tics_length,p);\
  1465. };\
  1466. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1467.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1468.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1469. };\
  1470. for(var p = zero_x ; p > 0; p = p - x2step){\
  1471.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1472.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1473. };\
  1474. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1475.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1476.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1477. };\
  1478. for(var p = zero_y ; p > 0; p = p - y2step){\
  1479.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1480.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1481. };\
  1482. ctx.stroke();\
  1483. ctx.closePath();\
  1484. ctx.restore();");
  1485.         }
  1486.         if( use_axis_numbering != -1 ){
  1487.           fprintf(js_include_file,"\
  1488. ctx.save();\
  1489. ctx.fillColor = axis_color;\
  1490. ctx.strokeStyle = axis_color;\
  1491. ctx.lineWidth = 2*line_width;\
  1492. ctx.font = font_family;\
  1493. var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  1494. if( x_strings[use_axis_numbering] != null ){\
  1495.  var str = x_strings[use_axis_numbering];\
  1496.  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1497.  ctx.beginPath();\
  1498.  if( x_strings_up[use_axis_numbering] == null){\
  1499.   for(var p = 0 ; p < len ; p = p+2){\
  1500.    var x_nums = x2px(eval(str[p]));\
  1501.    var x_text = str[p+1];\
  1502.    corr = ctx.measureText(x_text).width;\
  1503.    skip = 1.2*corr/xstep;\
  1504.    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  1505.    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
  1506.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  1507.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1508.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1509.   };\
  1510.  } else {\
  1511.   for(var p = 0 ; p < len ; p = p+2){\
  1512.    var x_nums = x2px(eval(str[p]));\
  1513.    var x_text = str[p+1];\
  1514.    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
  1515.    if( corr > ysize ){corr = ysize;};\
  1516.    ctx.save();\
  1517.    ctx.translate(x_nums+0.25*font_size, corr);\
  1518.    ctx.rotate(-1.5708);\
  1519.    ctx.fillText(x_text,0,0);\
  1520.    ctx.restore();\
  1521.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1522.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1523.   };\
  1524.  };\
  1525.  ctx.closePath();\
  1526. } else {\
  1527.  skip = 1;cnt = px2x(zero_x);\
  1528.  prec = Math.log(precision)/(Math.log(10));\
  1529.  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
  1530.  for( var p = zero_x ; p < xsize ; p = p+xstep){\
  1531.   if(skip == 0 ){\
  1532.    disp_cnt = cnt.toFixed(prec);\
  1533.    corr = ctx.measureText(disp_cnt).width;\
  1534.    skip = parseInt(1.2*corr/xstep);\
  1535.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1536.   } else {\
  1537.    skip--;\
  1538.   };\
  1539.   cnt = cnt + xmajor;\
  1540.  };\
  1541.  cnt = px2x(zero_x);skip = 1;\
  1542.  for( var p = zero_x ; p > 0 ; p = p-xstep){\
  1543.   if(skip == 0 ){\
  1544.    disp_cnt = cnt.toFixed(prec);\
  1545.    corr = ctx.measureText(disp_cnt).width;\
  1546.    skip = parseInt(1.2*corr/xstep);\
  1547.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1548.   } else {\
  1549.    skip--;\
  1550.   };\
  1551.   cnt = cnt - xmajor;\
  1552.  };\
  1553. };\
  1554. if( y_strings != null ){\
  1555.  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  1556.  ctx.beginPath();\
  1557.  for(var p = 0 ; p < len ; p = p+2){\
  1558.   var y_nums = y2px(eval(y_strings[p]));\
  1559.   var y_text = y_strings[p+1];\
  1560.   corr = 2 + tics_length + ctx.measureText(y_text).width;\
  1561.   if( corr > zero_x){corr = parseInt(zero_x+2); }\
  1562.   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
  1563.   ctx.moveTo(zero_x - tics_length,y_nums);\
  1564.   ctx.lineTo(zero_x + tics_length,y_nums);\
  1565.  };\
  1566.  ctx.closePath();\
  1567. } else {\
  1568.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1569.  cnt = px2y(zero_y);skip = 1;\
  1570.  for( var p = zero_y ; p < ysize ; p = p+ystep){\
  1571.   if(skip == 0 ){\
  1572.    skip = parseInt(1.4*font_size/ystep);\
  1573.    disp_cnt = cnt.toFixed(prec);\
  1574.    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1575.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1576.   } else {\
  1577.    skip--;\
  1578.   };\
  1579.   cnt = cnt - ymajor;\
  1580.  };\
  1581.  corr = 0;cnt = px2y(zero_y);skip = 1;\
  1582.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1583.  for( var p = zero_y ; p > 0 ; p = p-ystep){\
  1584.   if(skip == 0 ){\
  1585.    skip = parseInt(1.4*font_size/ystep);\
  1586.    disp_cnt = cnt.toFixed(prec);\
  1587.    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1588.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1589.   } else {\
  1590.    skip--;\
  1591.   };\
  1592.   cnt = cnt + ymajor;\
  1593.  };\
  1594. };\
  1595. ctx.stroke();\
  1596. ctx.restore();");
  1597.         }
  1598.         if( legend_cnt != -1 ){
  1599.           fprintf(js_include_file,"ctx.save();\
  1600. ctx.globalAlpha = 1.0;\
  1601. ctx.font = \"bold \"+font_size+\"px Arial\";\
  1602. var y_offset = 2*font_size;\
  1603. var txt;var txt_size;\
  1604. var x_offset = xsize - 2*font_size;\
  1605. var l_length = legend0.length;\
  1606. if( typeof(legendcolors0) !== 'undefined' ){\
  1607.  for(var p = 0 ; p < l_length ; p++){\
  1608.    barcolor[p] = legendcolors0[p];\
  1609.  };\
  1610. } else {\
  1611.  if( barcolor.length == 0 ){\
  1612.   for(var p = 0 ; p < l_length ; p++){\
  1613.    barcolor[p] = stroke_color;\
  1614.   };\
  1615.  };\
  1616. };\
  1617. for(var p = 0; p < l_length; p++){\
  1618.  ctx.fillStyle = barcolor[p];\
  1619.  txt = legend0[p];\
  1620.  txt_size = ctx.measureText(txt).width;\
  1621.  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
  1622.  y_offset = parseInt(y_offset + 1.5*font_size);\
  1623. };\
  1624. ctx.restore();");
  1625.         }
  1626.         if( barchart_cnt != 0 ){
  1627.           fprintf(js_include_file,"ctx.save();\
  1628. var num_barcharts = 0;\
  1629. var bar_name = eval('barchart_0');\
  1630. while( typeof(bar_name) !== 'undefined' ){\
  1631.    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
  1632. };\
  1633. var bar_width = parseInt(0.8*x2step/(num_barcharts));\
  1634. for(var i=0 ; i< num_barcharts ; i++){\
  1635.  bar_name = eval('barchart_'+i);\
  1636.  var bar_x = new Array();\
  1637.  var bar_y = new Array();\
  1638.  var lb = bar_name.length;\
  1639.  var idx = 0;\
  1640.  var dx = parseInt(0.5*i*bar_width);\
  1641.  for( var p = 0 ; p < lb ; p = p + 3 ){\
  1642.   bar_x[idx] = x2px(bar_name[p]);\
  1643.   bar_y[idx] = y2px(bar_name[p+1]);\
  1644.   barcolor[idx] = bar_name[p+2];\
  1645.   idx++;\
  1646.  };\
  1647.  ctx.globalAlpha = fill_opacity;\
  1648.  for( var p = 0; p < idx ; p++ ){\
  1649.   ctx.beginPath();\
  1650.   ctx.strokeStyle = barcolor[p];\
  1651.   ctx.fillStyle = barcolor[p];\
  1652.   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
  1653.   ctx.fill();\
  1654.   ctx.stroke();\
  1655.   ctx.closePath();\
  1656.  };\
  1657. };\
  1658. ctx.restore();");
  1659.         }
  1660.         if( linegraph_cnt != 0 ){
  1661.           fprintf(js_include_file,"ctx.save();\
  1662. ctx.globalAlpha = 1.0;\
  1663. var i = 0;\
  1664. var line_name = eval('linegraph_'+i);\
  1665. while ( typeof(line_name) !== 'undefined' ){\
  1666.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  1667.  ctx.lineWidth = parseInt(line_name[1]);\
  1668.  if(line_name[2] == \"1\"){\
  1669.   var d1 = parseInt(line_name[3]);\
  1670.   var d2 = parseInt(line_name[4]);\
  1671.   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
  1672.  } else {\
  1673.  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
  1674.  };\
  1675.  var data_x = new Array();var data_y = new Array();\
  1676.  var lb = line_name.length;var idx = 0;\
  1677.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  1678.   data_x[idx] = x2px(line_name[p]);\
  1679.   data_y[idx] = y2px(line_name[p+1]);\
  1680.   idx++;\
  1681.  };\
  1682.  for( var p = 0; p < idx ; p++){\
  1683.   ctx.beginPath();\
  1684.   ctx.moveTo(data_x[p],data_y[p]);\
  1685.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  1686.   ctx.stroke();\
  1687.   ctx.closePath();\
  1688.  };\
  1689.  i++;\
  1690.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  1691. };\
  1692. ctx.restore();return;");
  1693.         }
  1694.         fprintf(js_include_file,"};");
  1695.         break;
  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. } else {\
  1704.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1705. };\
  1706. var center_text = use_offset || 0;\
  1707. var ld = data_color_list.length;\
  1708. var sum = 0;\
  1709. var idx = 0;\
  1710. var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
  1711. var colors = new Array();\
  1712. var data = new Array();\
  1713. for(var p = 0;p < ld; p = p + 2){\
  1714.  data[idx] = parseFloat(data_color_list[p]);\
  1715.  sum = sum + data[idx];\
  1716.  colors[idx] = data_color_list[p+1];\
  1717.  idx++;\
  1718. };\
  1719. if( use_filled > 1 ){\
  1720.  var i = 2;\
  1721.  for(var p = 0 ;  p < idx ; p++){\
  1722.   if(i > 5 ){ i = 2; };\
  1723.   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
  1724.  };\
  1725. };\
  1726. var ctx = obj.getContext(\"2d\");\
  1727. ctx.save();\
  1728. var angle;\
  1729. var angle_end = 0;\
  1730. var offset = Math.PI / 2;\
  1731. ctx.globalAlpha = fill_opacity;\
  1732. var angles = [];\
  1733. for(var p=0; p < idx; p++){\
  1734.  ctx.beginPath();\
  1735.  ctx.moveTo(x_center,y_center);\
  1736.  angle = Math.PI * (2 * data[p] / sum);\
  1737.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  1738.  ctx.lineTo(x_center, y_center);\
  1739.  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
  1740.  ctx.fill();\
  1741.  ctx.closePath();\
  1742.  angles.push(angle_end + angle - offset);\
  1743.  angle_end  = angle_end + angle;\
  1744. };\
  1745. if(typeof(legend0) !== 'undefined'){\
  1746.  var legenda = eval(\"legend\"+legend_cnt);\
  1747.  ctx.globalAlpha = 1.0;\
  1748.  ctx.font = font_family;\
  1749.  var y_offset = font_size;\
  1750.  var x_offset = 0;\
  1751.  var txt;var txt_size;\
  1752.  for(var p = 0; p < idx; p++){\
  1753.   ctx.fillStyle = colors[p];\
  1754.   txt = legenda[p];\
  1755.   txt_size = ctx.measureText(txt).width + 2;\
  1756.   if(center_text == 4){\
  1757.    ctx.save();\
  1758.    ctx.translate(x_center, y_center);\
  1759.    ctx.rotate(angles[p]);\
  1760.    ctx.fillText(txt,radius-txt_size,0);\
  1761.    ctx.restore();\
  1762.   } else {\
  1763.    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  1764.    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
  1765.    y_offset = parseInt(y_offset + 1.5*font_size);\
  1766.   };\
  1767.  };\
  1768. };\
  1769. ctx.restore();\
  1770. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1771.         break;
  1772.       case DRAW_JSBOXPLOT:
  1773.         fprintf(js_include_file,"\n/* draw jsboxplots */\
  1774. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1775. function statistics(data){\
  1776. var len = data.length;\
  1777. var min = 10000000;\
  1778. var max = -10000000;\
  1779. var sum = 0;var d;\
  1780. for(var i=0;i<len;i++){\
  1781.  d = data[i];\
  1782.  if(d < min){min = d;}else{if(d > max){max = d;};};\
  1783.  sum+= parseFloat(data[i]);\
  1784. };\
  1785. var mean = parseFloat(sum/len);\
  1786. var variance = 0;\
  1787. for(var i=0;i<len;i++){\
  1788.  d = data[i];\
  1789.  variance += (d - mean)*(d - mean);\
  1790. };\
  1791. variance = parseFloat(variance / len);\
  1792. var std = Math.sqrt(variance);\
  1793. data.sort(function(a,b){return a - b;});\
  1794. var median;var Q1;var Q3;\
  1795. var half = Math.floor(0.5*len);\
  1796. var q1 = Math.floor(0.25*len);\
  1797. var q3 = Math.floor(0.75*len);\
  1798. var half = Math.floor(0.5*len);\
  1799. if(len %%2 == 1){\
  1800.  median = data[half];\
  1801.  Q1 = data[q1];\
  1802.  Q3 = data[q3];\
  1803. } else {\
  1804.  median = (data[half - 1] + data[half] )/2;\
  1805.  Q1 = (data[q1 - 1] + data[q1] )/2;\
  1806.  Q3 = (data[q3 - 1] + data[q3] )/2;\
  1807. };\
  1808. return [min,Q1,median,Q3,max];\
  1809. };");
  1810.         break;
  1811.       case DRAW_BOXPLOT:
  1812.         fprintf(js_include_file,"\n/* draw boxplots */\
  1813. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1814. 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){\
  1815. var obj;\
  1816. 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);};\
  1817. var ctx = obj.getContext(\"2d\");\
  1818. ctx.clearRect(0,0,xsize,ysize);\
  1819. ctx.save();\
  1820. ctx.lineWidth = line_width;\
  1821. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1822. var colors = new Array(2);\
  1823. colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  1824. colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1825. if( use_filled > 1 ){\
  1826.   var pat = create_Pattern(0,0,3,colors[0]);\
  1827.   all_fill_patterns[0] = pat;\
  1828.   pat = create_Pattern(0,0,4,colors[1]);\
  1829.   all_fill_patterns[1] = pat;\
  1830. };\
  1831. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  1832. var hh = 0.25*hw;\
  1833. switch(boxplot_source){\
  1834.  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
  1835.  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
  1836.  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
  1837.  default: break;\
  1838. };\
  1839. var min,Q1,median,Q3,max;\
  1840. if(xy == 1 ){\
  1841.  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
  1842.  hh = Math.abs(y2px(hh) - y2px(ystart));\
  1843.  hw = Math.abs(y2px(hw) - y2px(ystart));\
  1844.  cxy = y2px(cxy);\
  1845.  ctx.beginPath();\
  1846.  ctx.moveTo(min,cxy);\
  1847.  ctx.lineTo(Q1,cxy);\
  1848.  ctx.moveTo(Q3,cxy);\
  1849.  ctx.lineTo(max,cxy);\
  1850.  ctx.moveTo(min,cxy+hh);\
  1851.  ctx.lineTo(min,cxy-hh);\
  1852.  ctx.moveTo(max,cxy+hh);\
  1853.  ctx.lineTo(max,cxy-hh);\
  1854.  ctx.closePath();\
  1855.  ctx.stroke();\
  1856.  ctx.beginPath();\
  1857.  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
  1858.  ctx.closePath();\
  1859.  if( use_filled != 0 ){\
  1860.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1861.   ctx.fill();\
  1862.  };\
  1863.  ctx.stroke();\
  1864.  ctx.beginPath();\
  1865.  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
  1866.  ctx.closePath();\
  1867.  if( use_filled != 0 ){\
  1868.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1869.   ctx.fill();\
  1870.  };\
  1871.  ctx.stroke();\
  1872. }else{\
  1873.  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
  1874.  hh = Math.abs(x2px(hh) - x2px(xstart));\
  1875.  hw = Math.abs(x2px(hw) - x2px(xstart));\
  1876.  cxy = x2px(cxy);\
  1877.  ctx.beginPath();\
  1878.  ctx.moveTo(cxy,min);\
  1879.  ctx.lineTo(cxy,Q1);\
  1880.  ctx.moveTo(cxy,Q3);\
  1881.  ctx.lineTo(cxy,max);\
  1882.  ctx.moveTo(cxy + hh,min);\
  1883.  ctx.lineTo(cxy - hh,min);\
  1884.  ctx.moveTo(cxy + hh,max);\
  1885.  ctx.lineTo(cxy - hh,max);\
  1886.  ctx.closePath;\
  1887.  ctx.stroke();\
  1888.  ctx.beginPath();\
  1889.  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
  1890.  ctx.closePath();\
  1891.  if( use_filled != 0 ){\
  1892.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1893.   ctx.fill();\
  1894.  };\
  1895.  ctx.stroke();\
  1896.  ctx.beginPath();\
  1897.  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
  1898.  ctx.closePath();\
  1899.  if( use_filled != 0 ){\
  1900.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1901.   ctx.fill();\
  1902.  };\
  1903.  ctx.stroke();\
  1904. };\
  1905. ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
  1906.         break;
  1907.       case DRAW_CENTERSTRING:
  1908.         fprintf(js_include_file,"\n/* draw centerstring */\
  1909. var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
  1910. var obj;\
  1911. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1912.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1913. } else {\
  1914.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1915. };\
  1916. var ctx = obj.getContext(\"2d\");\
  1917. ctx.save();\
  1918. ctx.clearRect(0,0,xsize,ysize);\
  1919. ctx.font = font_family;\
  1920. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1921. var stringwidth = ctx.measureText(text).width;\
  1922. var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
  1923. ctx.fillText(text,x,y2px(y));\
  1924. ctx.restore();\
  1925. return;\
  1926. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1927.         break;
  1928.       case DRAW_TEXTS:
  1929.         fprintf(js_include_file,"\n/* draw text */\
  1930. var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
  1931. var obj;\
  1932. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1933.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1934. } else {\
  1935.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1936. };\
  1937. var ctx = obj.getContext(\"2d\");\
  1938. if( font_family != 'null' ){\
  1939.  ctx.font = font_family;\
  1940. } else {\
  1941.  ctx.font = font_size+'px Arial';\
  1942. };\
  1943. 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;};};\
  1944. if(angle2 == 0 && angle != 0){\
  1945.  ctx.save();\
  1946.  if(use_rotate == 1 ){\
  1947.  ctx.rotate(angle*Math.PI/180);};\
  1948.  ctx.restore();\
  1949. };\
  1950. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1951. if(angle2 != 0){\
  1952.  ctx.save();\
  1953.  ctx.translate(x,y);\
  1954.  ctx.rotate((360-angle2)*(Math.PI / 180));\
  1955.  ctx.fillText(text,0,0);\
  1956.  ctx.restore();\
  1957. } else {\
  1958.  ctx.fillText(text,x,y);\
  1959. };\
  1960. return;\
  1961. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1962.         break;
  1963.       case DRAW_INPUTS:
  1964. /* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
  1965.         fprintf(js_include_file,"\n/* draw static input fields */\
  1966. if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
  1967. var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
  1968. var input = document.createElement(\"input\");\
  1969. input.setAttribute(\"id\",\"canvas_input\"+num);\
  1970. input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
  1971. if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
  1972. input.setAttribute(\"size\",size);\
  1973. input.setAttribute(\"value\",value);\
  1974. input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
  1975. if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
  1976. canvas_div.appendChild(input);\
  1977. if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
  1978. input_cnt++;\
  1979. };\
  1980. function center_input(id,x,y,css_class){\
  1981. var inp = document.getElementById(id);\
  1982. var pos = inp.getBoundingClientRect();\
  1983. var center_x = parseInt(x - 0.5*(pos.width));\
  1984. var center_y = parseInt(y - 0.5*(pos.height));\
  1985. 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;\");}\
  1986. catch(e){console.log('error :'+e);return;};\
  1987. };");
  1988.         break;
  1989.       case DRAW_TEXTAREAS:
  1990.         fprintf(js_include_file,"\n/* draw text area inputfields */\
  1991. var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
  1992. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  1993. var textarea = document.createElement(\"textarea\");\
  1994. textarea.setAttribute(\"id\",\"canvas_input\"+num);\
  1995. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  1996. textarea.setAttribute(\"cols\",cols);\
  1997. textarea.setAttribute(\"rows\",rows);\
  1998. textarea.value = value;\
  1999. if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
  2000. canvas_div.appendChild(textarea);};");
  2001.         break;
  2002.       case DRAW_PIXELS:
  2003.         fprintf(js_include_file,"\n/* draw pixel */\
  2004. var draw_setpixel = function(x,y,color,opacity,pixelsize){\
  2005. var idx = 2000+Math.ceil(1000*(Math.random()));\
  2006. var canvas = create_canvas%d(idx,xsize,ysize);\
  2007. var d = 0.5*pixelsize;\
  2008. var ctx = canvas.getContext(\"2d\");\
  2009. if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
  2010. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  2011. ctx.clearRect(0,0,xsize,ysize);\
  2012. for(var p=0; p<x.length;p++){\
  2013.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  2014. };\
  2015. ctx.fill();ctx.stroke();\
  2016. };",canvas_root_id);
  2017.         break;
  2018.       case DRAW_CLOCK:
  2019.         fprintf(js_include_file,"\n/* command clock */\
  2020. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  2021. var clock_ctx = clock_canvas.getContext(\"2d\");\
  2022. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  2023. clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
  2024. clock_ctx.save();\
  2025. clock_ctx.globalAlpha = clock_bg_opacity;\
  2026. this.type = type || 0;\
  2027. this.interaction = interaction || 0;\
  2028. this.H = H;\
  2029. this.M = M;\
  2030. this.S = S;\
  2031. this.xc = xc || xsize/2;\
  2032. this.yc = yc || ysize/2;\
  2033. this.radius = radius || xsize/4;\
  2034. var font_size = parseInt(0.2*this.radius);\
  2035. this.H_color = h_color || \"black\";\
  2036. this.M_color = m_color || \"black\";\
  2037. this.S_color = s_color || \"black\";\
  2038. this.fg_color = fg_color || \"black\";\
  2039. this.bg_color = bg_color || \"white\";\
  2040. clock_ctx.translate(this.xc,this.yc);\
  2041. clock_ctx.beginPath();\
  2042. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  2043. clock_ctx.fillStyle = this.bg_color;\
  2044. clock_ctx.fill();\
  2045. clock_ctx.closePath();\
  2046. clock_ctx.beginPath();\
  2047. clock_ctx.font = font_size+\"px Arial\";\
  2048. clock_ctx.fillStyle = this.fg_color;\
  2049. clock_ctx.textAlign = \"center\";\
  2050. clock_ctx.textBaseline = 'middle';\
  2051. var angle;var x1,y1,x2,y2;\
  2052. var angle_cos;var angle_sin;\
  2053. clock_ctx.globalAlpha = clock_fg_opacity;\
  2054. switch(type){\
  2055. case 0:clock_ctx.beginPath();\
  2056. for(var p = 1; p <= 12 ; p++){\
  2057.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  2058.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  2059.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2060.  clock_ctx.moveTo(x1,y1);\
  2061.  clock_ctx.lineTo(x2,y2);\
  2062. };\
  2063. for(var p = 1; p <= 60 ; p++){\
  2064.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  2065.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  2066.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2067.  clock_ctx.moveTo(x1,y1);\
  2068.  clock_ctx.lineTo(x2,y2);\
  2069. };\
  2070. clock_ctx.closePath();\
  2071. clock_ctx.stroke();\
  2072. break;\
  2073. case 1:\
  2074. 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;\
  2075. case 2:\
  2076. 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);};\
  2077. 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 = 0.9*angle_cos;y1 = 0.9*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 = 0.95*angle_cos;y1 = 0.95*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. };\
  2096. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  2097. clock_ctx.rotate(angle);\
  2098. clock_ctx.beginPath();\
  2099. clock_ctx.moveTo(-3, -2);\
  2100. clock_ctx.lineTo(-3, 2);\
  2101. clock_ctx.lineTo(this.radius * 0.6, 1);\
  2102. clock_ctx.lineTo(this.radius  * 0.6, -1);\
  2103. clock_ctx.fillStyle = this.H_color;\
  2104. clock_ctx.fill();\
  2105. clock_ctx.rotate(-angle);\
  2106. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  2107. clock_ctx.rotate(angle);\
  2108. clock_ctx.beginPath();\
  2109. clock_ctx.moveTo(-3, -2);\
  2110. clock_ctx.lineTo(-3, 2);\
  2111. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  2112. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  2113. clock_ctx.fillStyle = this.M_color;\
  2114. clock_ctx.fill();\
  2115. clock_ctx.rotate(-angle);\
  2116. angle = (this.S - 15) * 2 * Math.PI / 60;\
  2117. clock_ctx.rotate(angle);\
  2118. clock_ctx.beginPath();\
  2119. clock_ctx.moveTo(0,0);\
  2120. clock_ctx.lineTo(this.radius  * 0.9, 1);\
  2121. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  2122. clock_ctx.strokeStyle = this.S_color;\
  2123. clock_ctx.stroke();\
  2124. clock_ctx.restore();\
  2125. };",canvas_root_id,CLOCK_CANVAS);
  2126.         break;
  2127.       case DRAW_LATTICE:
  2128.         fprintf(js_include_file,"\n/* draw lattice */\
  2129. 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){\
  2130. var obj;\
  2131. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2132.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2133. } else {\
  2134.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2135. };\
  2136. var ctx = obj.getContext(\"2d\");\
  2137. ctx.save();\
  2138. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  2139. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  2140. 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;};\
  2141. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  2142. var radius = line_width;\
  2143. var x = 0;\
  2144. var y = 0;\
  2145. var x_step_px = xsize/(xmax-xmin);\
  2146. var y_step_px = ysize/(ymax-ymin);\
  2147. var xv1 = dx1*x_step_px;\
  2148. var yv1 = dy1*y_step_px;\
  2149. var xv2 = dx2*x_step_px;\
  2150. var yv2 = dy2*y_step_px;\
  2151. for(var p = 0; p < n1 ;p++){\
  2152.  x = p*xv1 + x0;\
  2153.  y = p*yv1 + y0;\
  2154.  for(var c = 0; c < n2 ; c++){\
  2155.   ctx.beginPath();\
  2156.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  2157.   ctx.fill();\
  2158.   ctx.stroke();\
  2159.   ctx.closePath();\
  2160.  };\
  2161. };\
  2162. ctx.restore();\
  2163. return;\
  2164. };",canvas_root_id,canvas_root_id,canvas_root_id);
  2165.         break;
  2166.       case DRAW_XYLOGSCALE:
  2167.         fprintf(js_include_file,"\n/* draw xylogscale */\
  2168. 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){\
  2169. var obj;\
  2170. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2171.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2172. } else {\
  2173.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2174. };\
  2175. var ctx = obj.getContext(\"2d\");\
  2176. ctx.clearRect(0,0,xsize,ysize);\
  2177. ctx.save();\
  2178. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  2179. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2180. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2181. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2182. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2183. if(use_axis_numbering != -1){\
  2184.  ctx.font = font_family;\
  2185.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
  2186.  ymarge = parseInt(1.5*font_size);\
  2187.  ctx.save();\
  2188.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2189.  ctx.rect(0,0,xmarge,ysize);\
  2190.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2191.  ctx.fill();\
  2192.  ctx.restore();\
  2193. }else{xmarge = 0;ymarge = 0;};\
  2194. if( typeof(xaxislabel) !== 'undefined' ){\
  2195.  ctx.save();\
  2196.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2197.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2198.  corr =  ctx.measureText(xaxislabel).width;\
  2199.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2200.  ctx.restore();\
  2201. };\
  2202. if( typeof(yaxislabel) !== 'undefined' ){\
  2203.  ctx.save();\
  2204.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2205.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2206.  corr = ctx.measureText(yaxislabel).width;\
  2207.  ctx.translate(xmarge+font_size,corr+font_size);\
  2208.  ctx.rotate(-0.5*Math.PI);\
  2209.  ctx.fillText(yaxislabel,0,0);\
  2210.  ctx.restore();\
  2211. };\
  2212. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2213. ctx.lineWidth = line_width;\
  2214. for(var p = x_min; p <= x_max ; p++){\
  2215.  num = Math.pow(xlogbase,p);\
  2216.  for(var i = 1 ; i < xlogbase ; i++){\
  2217.   x_e = x2px(i*num);\
  2218.   if( i == 1 ){\
  2219.    ctx.lineWidth = line_width;\
  2220.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2221.    if( use_axis_numbering != -1 && p > x_min){\
  2222.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2223.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2224.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2225.    };\
  2226.   }else{\
  2227.    ctx.lineWidth = 0.2*line_width;\
  2228.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2229.   };\
  2230.   if( x_e >= xmarge ){\
  2231.    ctx.beginPath();\
  2232.    ctx.moveTo(x_e,0);\
  2233.    ctx.lineTo(x_e,ysize - ymarge);\
  2234.    ctx.stroke();\
  2235.    ctx.closePath();\
  2236.   };\
  2237.  };\
  2238. };\
  2239. for(var p = y_min; p <= y_max ; p++){\
  2240.  num = Math.pow(ylogbase,p);\
  2241.  for(var i = 1 ; i < ylogbase ; i++){\
  2242.   y_e = y2px(i*num);\
  2243.   if( i == 1 ){\
  2244.    ctx.lineWidth = line_width;\
  2245.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2246.    if( use_axis_numbering != -1 && p > y_min){\
  2247.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2248.    };\
  2249.   }else{\
  2250.    ctx.lineWidth = 0.2*line_width;\
  2251.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2252.   };\
  2253.   ctx.beginPath();\
  2254.   ctx.moveTo(xmarge,y_e);\
  2255.   ctx.lineTo(xsize,y_e);\
  2256.   ctx.stroke();\
  2257.   ctx.closePath();\
  2258.  };\
  2259. };\
  2260. ctx.restore();\
  2261. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2262.         break;
  2263.       case DRAW_XLOGSCALE:
  2264.         fprintf(js_include_file,"\n/* draw xlogscale */\
  2265. 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){\
  2266. var obj;\
  2267. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2268.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2269. } else {\
  2270.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2271. };\
  2272. var ctx = obj.getContext(\"2d\");\
  2273. ctx.clearRect(0,0,xsize,ysize);\
  2274. ctx.save();\
  2275. ctx.lineWidth = line_width;\
  2276. var prec = Math.log(precision)/Math.log(10);\
  2277. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2278. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2279. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  2280. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  2281. if(use_axis_numbering != -1){\
  2282.  ctx.font = font_family;\
  2283.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
  2284.  ymarge = parseInt(1.5*font_size);\
  2285.  ctx.save();\
  2286.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2287.  ctx.rect(0,0,xmarge,ysize);\
  2288.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2289.  ctx.fill();\
  2290.  ctx.restore();\
  2291. }else{xmarge = 0;ymarge = 0;};\
  2292. if( typeof(xaxislabel) !== 'undefined' ){\
  2293.  ctx.save();\
  2294.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2295.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2296.  corr =  ctx.measureText(xaxislabel).width;\
  2297.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2298.  ctx.restore();\
  2299. };\
  2300. if( typeof(yaxislabel) !== 'undefined' ){\
  2301.  ctx.save();\
  2302.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2303.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2304.  corr = ctx.measureText(yaxislabel).width;\
  2305.  ctx.translate(xmarge+font_size,corr+font_size);\
  2306.  ctx.rotate(-0.5*Math.PI);\
  2307.  ctx.fillText(yaxislabel,0,0);\
  2308.  ctx.restore();\
  2309. };\
  2310. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2311. ctx.lineWidth = line_width;\
  2312. for(var p = x_min; p <= x_max ; p++){\
  2313.  num = Math.pow(xlogbase,p);\
  2314.  for(var i = 1 ; i < xlogbase ; i++){\
  2315.   x_e = x2px(i*num);\
  2316.   if( i == 1 ){\
  2317.     ctx.lineWidth = line_width;\
  2318.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2319.    if( use_axis_numbering != -1 && p > x_min ){\
  2320.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2321.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2322.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2323.    };\
  2324.   }else{\
  2325.    ctx.lineWidth = 0.2*line_width;\
  2326.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2327.   };\
  2328.   if( x_e >= xmarge ){\
  2329.    ctx.beginPath();\
  2330.    ctx.moveTo(x_e,0);\
  2331.    ctx.lineTo(x_e,ysize - ymarge);\
  2332.    ctx.stroke();\
  2333.    ctx.closePath();\
  2334.   };\
  2335.  };\
  2336. };\
  2337. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  2338. var minor_step = stepy / yminor;\
  2339. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  2340.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2341.  ctx.lineWidth = line_width;\
  2342.  ctx.beginPath();\
  2343.  ctx.moveTo(xmarge,y);\
  2344.  ctx.lineTo(xsize,y);\
  2345.  ctx.stroke();\
  2346.  ctx.closePath();\
  2347.  if( use_axis_numbering != -1){\
  2348.   ytxt = (px2y(y)).toFixed(prec);\
  2349.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  2350.  };\
  2351.  for(var dy = 1 ; dy < yminor ; dy++){\
  2352.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2353.   ctx.lineWidth = 0.2*line_width;\
  2354.   ctx.beginPath();\
  2355.   ctx.moveTo(xmarge,y+dy*minor_step);\
  2356.   ctx.lineTo(xsize,y+dy*minor_step);\
  2357.   ctx.stroke();\
  2358.   ctx.closePath();\
  2359.  };\
  2360. };\
  2361. ctx.restore();\
  2362. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2363.         break;
  2364.       case DRAW_YLOGSCALE:
  2365.         fprintf(js_include_file,"\n/* draw ylogscale */\
  2366. 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){\
  2367. var obj;\
  2368. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2369.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2370. } else {\
  2371.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2372. };\
  2373. var ctx = obj.getContext(\"2d\");\
  2374. ctx.clearRect(0,0,xsize,ysize);\
  2375. ctx.save();\
  2376. ctx.lineWidth = line_width;\
  2377. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2378. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2379. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
  2380. if(use_axis_numbering != -1){\
  2381.  ctx.font = font_family;\
  2382.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
  2383.  ymarge = 2*font_size;\
  2384.  ctx.save();\
  2385.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2386.  ctx.rect(0,0,xmarge,ysize);\
  2387.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2388.  ctx.fill();\
  2389.  ctx.restore();\
  2390. }else{xmarge = 0;ymarge = 0;};\
  2391. if( typeof(xaxislabel) !== 'undefined' ){\
  2392.  ctx.save();\
  2393.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2394.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2395.  corr =  ctx.measureText(xaxislabel).width;\
  2396.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2397.  ctx.restore();\
  2398. };\
  2399. if( typeof(yaxislabel) !== 'undefined' ){\
  2400.  ctx.save();\
  2401.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2402.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2403.  corr = ctx.measureText(yaxislabel).width;\
  2404.  ctx.translate(xmarge+font_size,corr+font_size);\
  2405.  ctx.rotate(-0.5*Math.PI);\
  2406.  ctx.fillText(yaxislabel,0,0);\
  2407.  ctx.restore();\
  2408. };\
  2409. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2410. ctx.lineWidth = line_width;\
  2411. for(var p = y_min; p <= y_max ; p++){\
  2412.  num = Math.pow(ylogbase,p);\
  2413.  for(var i = 1 ; i < ylogbase ; i++){\
  2414.   y_e = y2px(i*num);\
  2415.   if( i == 1 ){\
  2416.    ctx.lineWidth = line_width;\
  2417.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2418.    if( use_axis_numbering != -1 && p > y_min){\
  2419.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2420.    };\
  2421.   }else{\
  2422.    ctx.lineWidth = 0.2*line_width;\
  2423.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2424.   };\
  2425.   ctx.beginPath();\
  2426.   ctx.moveTo(xmarge,y_e);\
  2427.   ctx.lineTo(xsize,y_e);\
  2428.   ctx.stroke();\
  2429.   ctx.closePath();\
  2430.  };\
  2431. };\
  2432. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  2433. var minor_step = stepx / xminor;\
  2434. var prec = Math.log(precision)/Math.log(10);\
  2435. var xtxt;var corr;var flip = 0;\
  2436. for(var x = stepx ; x < xsize ; x = x + stepx){\
  2437.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2438.  ctx.lineWidth = line_width;\
  2439.  ctx.beginPath();\
  2440.  ctx.moveTo(x,ysize-ymarge);\
  2441.  ctx.lineTo(x,0);\
  2442.  ctx.stroke();\
  2443.  ctx.closePath();\
  2444.  if( use_axis_numbering != -1){\
  2445.   xtxt = (px2x(x)).toFixed(prec);\
  2446.   corr = 0.5*(ctx.measureText(xtxt).width);\
  2447.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  2448.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  2449.  };\
  2450.  for(var dx = 1 ; dx < xminor ; dx++){\
  2451.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2452.   ctx.lineWidth = 0.2*line_width;\
  2453.   ctx.beginPath();\
  2454.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  2455.   ctx.lineTo(x+dx*minor_step,0);\
  2456.   ctx.stroke();\
  2457.   ctx.closePath();\
  2458.  };\
  2459. };\
  2460. ctx.restore();\
  2461. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2462.         break;
  2463.       case ADD_USER_INPUTS:
  2464.         fprintf(js_include_file,"\n/* add_input_xy */\
  2465. function add_input_xy(){\
  2466. if( wims_status == \"done\" ){return;};\
  2467. var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
  2468. var input_xy_div = document.createElement('div');\
  2469. input_xy_div.id = \"input_xy_div\";\
  2470. tooltip_div.appendChild(input_xy_div);",canvas_root_id);
  2471.  
  2472.       if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
  2473.         type=1;
  2474.         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);
  2475.       }else{
  2476.         if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
  2477.           type=2;
  2478.           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);
  2479.         }else{
  2480.             type=3;
  2481.             if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
  2482.               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);
  2483.             }else{
  2484.               type=4;
  2485.               if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
  2486.                 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);
  2487.               }else{
  2488.                 type=5;
  2489.                 if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
  2490.                   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);
  2491.                 }else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
  2492.               }
  2493.             }
  2494.           }
  2495.         }
  2496.       }
  2497.       fprintf(js_include_file,"\
  2498. var update_button = document.getElementById(\"update_button\");\
  2499. var delete_button = document.getElementById(\"delete_button\");\
  2500. update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
  2501. delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
  2502. };add_input_xy();");
  2503.  
  2504.       switch(type){
  2505.         case 1:
  2506.           fprintf(js_include_file,"\n/* add_input_xy */\
  2507. function update_me(){\
  2508. var x = safe_eval(document.getElementById('userinput_x').value);\
  2509. var y = safe_eval(document.getElementById('userinput_y').value);\
  2510. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2511. return;\
  2512. };");break;
  2513.         case 2:
  2514.           fprintf(js_include_file,"\n/* add_input_xy */\
  2515. function update_me(){\
  2516. var x = safe_eval(document.getElementById('userinput_x').value);\
  2517. var y = safe_eval(document.getElementById('userinput_y').value);\
  2518. var r = safe_eval(document.getElementById('userinput_r').value);\
  2519. r = scale_x_radius(r);\
  2520. userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2521. return;\
  2522. };");break;
  2523.         case 3:
  2524.           fprintf(js_include_file,"\n/* add_input_xy */\
  2525. function update_me(){\
  2526. var x,y;\
  2527. for(var p=1; p<3;p++){\
  2528.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2529.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2530.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2531. };\
  2532. return;\
  2533. };");
  2534.           break;
  2535.         case 4:
  2536.           fprintf(js_include_file,"\n/* add_input_xy */\
  2537. function update_me(){\
  2538. var x,y;\
  2539. for(var p=1; p<4;p++){\
  2540.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2541.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2542.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2543. };\
  2544. return;\
  2545. };");
  2546.           break;
  2547.         case 5:
  2548.  /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
  2549.           fprintf(js_include_file,"\n/* add_input_xy */\
  2550. function update_me(){\
  2551. var x = safe_eval(document.getElementById('userinput_x').value);\
  2552. var y = safe_eval(document.getElementById('userinput_y').value);\
  2553. var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
  2554. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
  2555. return;\
  2556. };");
  2557.           break;
  2558.         default: canvas_error("hmmm, I've no idea...");break;
  2559.       }
  2560.       break;
  2561.       default:break;
  2562.       }
  2563.     }
  2564.   }
  2565.   return;
  2566. }
  2567.