Subversion Repositories wimsdev

Rev

Rev 18218 | Rev 18556 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | RSS feed

  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.   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
  156.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  157.   var y1;var x1;var y2;var x2;\
  158.   ctx.beginPath();\
  159.   var tmin = trange[0];var tmax = trange[1];\
  160.   var step = parseFloat((tmax - tmin)/plotsteps);\
  161.   for(var p = tmin ; p < tmax; p = p+step ){\
  162.    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
  163.    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
  164.    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
  165.    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
  166.    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
  167.     ctx.moveTo(x1,y1);\
  168.     ctx.lineTo(x2,y2);\
  169.     ctx.moveTo(x1,y1);\
  170.     ctx.lineTo(x2,y2);\
  171.   };\
  172.   ctx.closePath();\
  173.   ctx.stroke();\
  174.  };\
  175.  animation_funs = 0.5*animation_funs;\
  176. }else{\
  177.  for(var i = 0 ; i < animation_funs; i++){\
  178.   var fun = to_js_math(funs[i]);\
  179.   if(fun == null){alert(\"Syntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi)) \");return;};\
  180.   try{ parseFloat( eval_jsmath( px2x(0),fun ) );}catch(e){alert(\"\\nSyntax Error...\\nAttention : try use very precise notation !\\nlike :\\n6*(0.25)^(1.23)\\n1/(sin(5*x))\\n(3*x+4)/(x^(2*pi))\");return;};\
  181.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  182.   ctx.lineWidth = linewidth[i] || linewidth;\
  183.   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
  184.   var y1;var x1;var y2;var x2;\
  185.   ctx.beginPath();\
  186.   for(var p = 0 ; p<xsize;p++){\
  187.    x1 = px2x(p);\
  188.    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
  189.    x2 = px2x(p+1);\
  190.    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
  191.    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
  192.    if(Math.abs(y2-y1) < ysize ){\
  193.     ctx.moveTo(p,y1);\
  194.     ctx.lineTo(p+1,y2);\
  195.    };\
  196.   };\
  197.   ctx.closePath();\
  198.   ctx.stroke();\
  199.  };\
  200. };\
  201. if( use_animate == 1 ){animation_steps = idx;animate_this();}\
  202. };",canvas_root_id);
  203.         break;
  204.       case JS_MATH:
  205. /* 5/2024 added exp -> e^ -> (2.718281828459045)^ */
  206.         fprintf(js_include_file,"\n/* to_js_math() */\
  207. function to_js_math(math_fun){\
  208. if(math_fun == null){return;};\
  209. var infun=[\"exp\",\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
  210. var outfun=[\"(2.718281828459045)^\",\"Math.sqrt\",\"Math.pow\",\"Math.asin\",\"Math.acos\",\"Math.atan\",\"Math.log\",\"(3.14159265358979)\",\"Math.abs\",\"Math.sin\",\"Math.cos\",\"Math.tan\",\"(2.718281828459045)\"];\
  211. var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
  212. for(var p=0 ; p < len ; p++){\
  213.  in_fun = infun[p];   In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
  214.  if(math_fun.indexOf(in_fun) != -1){\
  215.   if(in_fun == \"^\"){\
  216.    var tab = [];var small_trick = \"___small_trick___\";\
  217.    while (math_fun.indexOf(\"(\") != -1){\
  218.     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
  219.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  220.    };\
  221.    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
  222.    while (math_fun.indexOf(small_trick) != -1){\
  223.     math_fun = math_fun.replace(new RegExp(small_trick + \"(\\\\d+)\", \"g\"), function(m, d){return tab[d].replace(/(\\w*)\\^(\\w*)/g, out_fun+\"($1,$2)\");});\
  224.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  225.    };\
  226.   } else {\
  227.    while( math_fun.indexOf(in_fun) != -1 ){\
  228.     math_fun = math_fun.replace(in_fun,out_fun);\
  229.     math_fun = math_fun.replace(in_fun,In_Fun);\
  230.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  231.    };\
  232.   };\
  233.  };\
  234. };\
  235. for(var p=0 ; p < len ; p++){\
  236.  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
  237.  if(math_fun.indexOf(In_Fun) != -1 ){\
  238.   while(math_fun.indexOf(In_Fun) != -1){\
  239.    math_fun = math_fun.replace(In_Fun,in_fun);\
  240.    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  241.   };\
  242.  };\
  243. };\
  244. return math_fun;\
  245. };");
  246.         break;
  247.       case INTERACTIVE:
  248. /* 1/8/2022 NOTE : getMouse() code should run at maximum speed and not be bothered with all kind of fancy tests !!
  249.   1/8/2022 : latest improvements related to 'reponsiveness' will fatally lockup browsers in the pixel-by-pixel filling...at least in userdraw clickfill...*/
  250.         fprintf(js_include_file,"\n/* add mouse support */\
  251. var isTouch = (('ontouchstart' in window) || (navigator.msMaxTouchPoints > 0));\
  252. var getMouse = function(e, element){\
  253.   var mx,my;var offsetX = 0,offsetY = 0;\
  254.   while( ( element = element.offsetParent) ){\
  255.     offsetX += element.offsetLeft;offsetY += element.offsetTop;\
  256.   };\
  257.   /*console.log('===');*/\
  258.   if(isTouch){\
  259.      mx = e.pageX - offsetX; my = e.pageY - offsetY;\
  260.   }else{\
  261.      mx = e.clientX - offsetX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft:document.body.scrollLeft);\
  262.      my = e.clientY - offsetY + (document.documentElement.scrollTop ? document.documentElement.scrollTop:document.body.scrollTop);\
  263.   };\
  264.   if( typeof(clickfill) === 'function'){ return {x: mx, y: my};}else{\
  265.   /* test if canvas_div is inside a scrollable */\
  266.   const scroll_parent = canvas_div.closest('.wims_scrollable');\
  267.   if (scroll_parent){\
  268.      mx = mx + scroll_parent.scrollLeft;\
  269.      my = my + scroll_parent.scrollTop;\
  270.   }\
  271.   /* If canvas had been resized,, we have to convert these coordinates to original grid*/\
  272.   /*console.log('mx before=' + mx);\
  273.   console.log('xsize='+xsize);\
  274.   console.log('canvas_div.offsetHeight='+canvas_div.offsetWidth);*/\
  275.   mx = (mx * xsize / canvas_div.offsetWidth);\
  276.   /*console.log('mx after='+mx);*/\
  277.   my = (my * ysize / canvas_div.offsetHeight);\
  278.   return {x: mx, y: my};};\
  279. };");
  280.         break;
  281.       case USERDRAW_AND_ZOOM:
  282.         fprintf(js_include_file,"\n/* add zoom support for multidraw */\
  283. function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
  284. function x_zoom(px){\
  285.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  286.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  287. };\
  288. function y_zoom(py){\
  289.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  290.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  291. };\
  292. function r_zoom(r){\
  293.  return r*(xmin0/xmin);\
  294. };\
  295. var len = userdraw_x.length;\
  296. var x;var y;var r;\
  297. for(var p=0;p<len;p++){\
  298.  x = userdraw_x[p];\
  299.  y = userdraw_y[p];\
  300.  userdraw_x[p] = x_zoom(x);\
  301.  userdraw_y[p] = y_zoom(y);\
  302.  if( userdraw_radius[p] ){\
  303.   r = userdraw_radius[p];\
  304.   userdraw_radius[p] = r_zoom(r);\
  305.  };\
  306. };\
  307. };");
  308. break;
  309.  
  310. case DRAG_AND_ZOOM:
  311. fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
  312. function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
  313. function x_zoom(px){\
  314.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  315.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  316. };\
  317. function y_zoom(py){\
  318.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  319.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  320. };\
  321. var len = dragstuff.shapes.length;\
  322. var shape;var L;var x;var y;\
  323. for(var p=0;p<len;p++){\
  324.  shape = dragstuff.shapes[p];\
  325.  L = shape.x.length;\
  326.  for(var i=0;i<L;i++){\
  327.   x = shape.x[i];\
  328.   y = shape.y[i];\
  329.   dragstuff.shapes[p].x[i] = x_zoom(x);\
  330.   dragstuff.shapes[p].y[i] = y_zoom(y);\
  331.  };\
  332. };\
  333. };");
  334. break;
  335.  
  336. case JSPLOT_AND_ZOOM:
  337. fprintf(js_include_file,"\n/* add zoom support for jscurves */\
  338. function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
  339. break;
  340.  
  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.  
  419. case JS_ROTATE_MOUSE:
  420. /*
  421. identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
  422. faster than transform matrix
  423. */
  424. fprintf(js_include_file,"\n/* rotate mouse */\
  425. function rotate_mouse(mx,my,obj){\
  426. if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
  427. var cos = Math.cos(obj.angle);\
  428. var sin = Math.sin(obj.angle);\
  429. var xc = obj.rotation_center[0];\
  430. var yc = obj.rotation_center[1];\
  431. var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
  432. var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
  433. return {x:x_r,y:y_r};};");
  434. break;
  435.  
  436. case JS_FIND_ANGLE:
  437.  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);};");
  438. break;
  439.  
  440. case DRAG_EXTERNAL_IMAGE:
  441. /*
  442. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  443. reply is object{} and identical to reply from dragstuff library for drag&drop&click
  444. */
  445. fprintf(js_include_file,"\n/* drag external images */\
  446. var external_ctx = external_canvas.getContext(\"2d\");\
  447. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  448. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  449. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  450. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  451. canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
  452. canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
  453. canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
  454. var selected_image = null;\
  455. if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
  456. if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
  457. if( typeof(slidergroup) == 'undefined' ) { var slidergroup = [];};\
  458. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
  459. var image = new Image();\
  460. image.src = URL;\
  461. slidergroup[object_cnt] = null;\
  462. image.onload = function(){\
  463.  if( sx < 1 ){ sx = 0; };\
  464.  if( sy < 1 ){ sy = 0; };\
  465.  if( swidth < 1 ){swidth = image.width;};\
  466.  if( sheight < 1 ){sheight = image.height;};\
  467.  if( width < 1 ){width = image.width;};\
  468.  if( height < 1 ){height = image.height;};\
  469.  if( resize == 1 ){\
  470.   if( swidth > image.width ){ swidth = image.width; };\
  471.   if( sheight > image.height){ sheight = image.height;};\
  472.   if( width > image.width ){ width = image.width; };\
  473.   if( height > image.height){ height = image.height;};\
  474.  };\
  475.  var img = new Array(18);\
  476.  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  477.  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
  478.  img[6] = x0;img[7] = y0;\
  479.  img[12] = ext_image_cnt;\
  480.  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
  481.  if(use_offset == 4 ){\
  482.   img[16] = 0.5*img[8];\
  483.   img[17] = 0.5*img[9];\
  484.   img[6]= parseInt(img[6] - img[16]);\
  485.   img[7]= parseInt(img[7] - img[17]);\
  486.  };\
  487.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  488.  dragdrop_reply[img[10]] = {type:img[0],object_cnt:img[10],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
  489.  ext_drag_images[ext_image_cnt] = img;\
  490.  ext_image_cnt++;\
  491. };\
  492. };\
  493. function dragstop(evt){\
  494. if(selected_image != null){\
  495.  var s_img = ext_drag_images[selected_image];\
  496.  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]};\
  497. };\
  498. selected_image = null;return;\
  499. };\
  500. function dragxy(evt){\
  501. if( selected_image != null ){\
  502.  var s_img = ext_drag_images[selected_image];\
  503.  var mouse = getMouse(evt,external_canvas);\
  504.  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
  505.  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
  506.  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
  507.  s_img[6] = xy[0];s_img[7] = xy[1];\
  508.  ext_drag_images[selected_image] = s_img;\
  509.  external_ctx.clearRect(0,0,xsize,ysize);\
  510.  for(var i = 0; i < ext_image_cnt ; i++){\
  511.   var img = ext_drag_images[i];\
  512.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  513.  };\
  514. };\
  515. };\
  516. function setxy(evt){\
  517. if( ! selected_image ){\
  518.  var mouse = getMouse(evt,external_canvas);\
  519.  var xm = mouse.x;\
  520.  var ym = mouse.y;\
  521.  var img;var xmarge;var ymarge;\
  522.  for(var p = 0 ; p < ext_image_cnt ; p++){\
  523.   if( ext_drag_images[p] ){\
  524.    img = ext_drag_images[p];\
  525.    if( img[0] != 0 ){\
  526.     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
  527.     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
  528.      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
  529.       if( img[0] == 1){\
  530.        if( dragdrop_reply[img[10]].clicked == 1 ){\
  531.         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
  532.        }\
  533.        else\
  534.        {\
  535.         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
  536.        };\
  537.        external_ctx.lineWidth = 2;\
  538.        external_ctx.beginPath();\
  539.        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
  540.        external_ctx.closePath();\
  541.        external_ctx.stroke();\
  542.        return;\
  543.       }\
  544.       else\
  545.       {\
  546.        img[6] = xm;\
  547.        img[7] = ym;\
  548.        selected_image = p;\
  549.        dragxy(evt);\
  550.        ext_drag_images[p] = img;\
  551.       };\
  552.      };\
  553.     };\
  554.    };\
  555.   };\
  556.  };\
  557. } else {\
  558.  selected_image = null;\
  559. };\
  560. };");
  561. break;
  562.  
  563. case DRAW_EXTERNAL_IMAGE:
  564. /*
  565. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  566. only drag_xy !
  567. snaptogrid | xsnaptogrid | ysnaptogrid works
  568. 14/5/2019
  569. on heavy styled wims (unice.fr etc problems with mouse?
  570. now uniform method of retreiving mouse coordinates getMouse()
  571. */
  572. fprintf(js_include_file,"\n/* draw external images */\
  573. function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
  574. var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
  575. var image = new Image();\
  576. image.src = URL;\
  577. image.onload = function(){\
  578.  if( sx < 1 ){ sx = 0; };\
  579.  if( sy < 1 ){ sy = 0; };\
  580.  if( swidth < 1 ){swidth = image.width;};\
  581.  if( sheight < 1 ){sheight = image.height;};\
  582.  if( width < 1 ){width = image.width;};\
  583.  if( height < 1 ){height = image.height;};\
  584.  if( resize == 1 ){\
  585.   if( swidth > image.width ){ swidth = image.width; };\
  586.   if( sheight > image.height){ sheight = image.height;};\
  587.   if( width > image.width ){ width = image.width; };\
  588.   if( height > image.height){ height = image.height;};\
  589.  };\
  590.  var img = new Array(9);\
  591.  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
  592.  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
  593.  img[7] = width;img[8] = height;\
  594.  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
  595. };\
  596. };");
  597. break;
  598.  
  599. case DRAW_BEZIER:
  600. fprintf(js_include_file,"\n/* draw bezier curve */\
  601. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  602. 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){\
  603. var obj;\
  604. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  605.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  606. } else {\
  607.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  608. };\
  609. var ctx = obj.getContext(\"2d\");\
  610. ctx.save();\
  611. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  612. ctx.lineWidth = linewidth;\
  613. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  614. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  615. ctx.beginPath();\
  616. ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
  617. 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]));\
  618. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  619. 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;};\
  620. ctx.stroke();\
  621. ctx.restore();\
  622. };",canvas_root_id,canvas_root_id,canvas_root_id);
  623. break;
  624.  
  625. case DRAW_GRIDFILL:/* not used for userdraw */
  626. fprintf(js_include_file,"\n/* draw gridfill */\
  627. var grid_fill_pattern;\
  628. function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
  629. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  630. var fc = %d+canvas_type;\
  631. var obj = create_canvas%d(fc,xsize,ysize);\
  632. var ctx = obj.getContext('2d');\
  633. var x,y;\
  634. ctx.fillStyle='rgba(255,255,255,0.01)';\
  635. ctx.rect(0,0,xsize,ysize);\
  636. ctx.fill();\
  637. ctx.lineWidth = linewidth;\
  638. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  639. for( x = 0 ; x <= xsize ; x = x + dx ){\
  640.  ctx.beginPath();\
  641.  ctx.moveTo(x,0);\
  642.  ctx.lineTo(x,ysize);\
  643.  ctx.closePath();\
  644.  ctx.stroke();\
  645. };\
  646. for( y = 0 ; y <= ysize; y = y + dy ){\
  647.  ctx.beginPath();\
  648.  ctx.moveTo(0,y);\
  649.  ctx.lineTo(xsize,y);\
  650.  ctx.closePath();\
  651.  ctx.stroke();\
  652. };\
  653. if( use_userdraw ){\
  654.  grid_fill_pattern = ctx;\
  655. } else {\
  656.  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
  657. };",canvas_root_id,canvas_root_id);
  658. break;
  659.  
  660. case DRAW_IMAGEFILL:/* not  used for userdraw */
  661. fprintf(js_include_file,"\n/* draw imagefill */\
  662. function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
  663. var fc = %d+canvas_type;\
  664. var obj = create_canvas%d(fc,xsize,ysize);\
  665. var ctx = obj.getContext('2d');\
  666. var img = new Image();\
  667. img.src = URL;\
  668. obj.style.visibility = 'hidden';\
  669. img.onload = function(){\
  670.  if( use_scaling == 1 ){\
  671.   ctx.drawImage(img,x0,y0,xsize,ysize);\
  672.  }else{\
  673.   var w0 = img.width;var h0 = img.height;var w;var h;\
  674.   for( w = x0; w < xsize ; w = w + w0 ){\
  675.    for( h = y0; h < ysize; h = h + h0){\
  676.      ctx.drawImage(img,w,h,w0,h0);\
  677.    };\
  678.   };\
  679.  };\
  680.  if( use_userdraw ){\
  681.   image_pattern = ctx;\
  682.  } else {\
  683.   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
  684.  };\
  685. };\
  686. };",canvas_root_id,canvas_root_id);
  687.         break;
  688.  
  689.       case DRAW_DOTFILL:/* not  used for userdraw */
  690.         fprintf(js_include_file,"\n/* draw dotfill */\
  691. var dot_fill_pattern;\
  692. function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
  693. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  694. var fc = %d+canvas_type;\
  695. var obj = create_canvas%d(fc,xsize,ysize);\
  696. var ctx = obj.getContext('2d');\
  697. var x,y;\
  698. ctx.fillStyle='rgba(255,255,255,0.01)';\
  699. ctx.rect(0,0,xsize,ysize);\
  700. ctx.fill();\
  701. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  702. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  703. for( x = 0 ; x < xsize ; x = x + dx ){\
  704.  for( y = 0 ; y < ysize ; y = y + dy ){\
  705.   ctx.beginPath();\
  706.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  707.   ctx.closePath();\
  708.   ctx.fill();\
  709.  };\
  710. };\
  711. if( use_userdraw ){\
  712.  dot_fill_pattern = ctx;\
  713. } else {\
  714. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  715. };\
  716. return;\
  717. };",canvas_root_id,canvas_root_id);
  718.         break;
  719.       case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
  720. /* use_offset
  721.  0=none;
  722.  1=yoffset
  723.  2=xoffset
  724.  3=xyoffset
  725.  4=centered
  726. */
  727.         fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
  728. function draw_subsup(ctx,x,y,txt,use_offset){\
  729. var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
  730. var m = 0.4*(ctx.measureText(txt).width);\
  731. var h = ctx.measureText('M').width;\
  732. switch(use_offset){\
  733.  case 0:break;\
  734.  case 1:y=y-h;break;\
  735.  case 2:x=x+h;break;\
  736.  case 3:x=x+h;y=y-h;break;\
  737.  case 4:x=x-m;break;\
  738.  default:break;\
  739. };\
  740. var alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';\
  741. function check_alpha(C){if(alphabet.indexOf(C) != -1){return 1;}else{return 0;};};\
  742. var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
  743. ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
  744. for( c = 0 ; c < len ;c++){\
  745.  C = txt.charAt(c);space = 0;\
  746.  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
  747.  else\
  748.  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
  749.  else\
  750.  if(C == ' ' ){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
  751.  else\
  752.  if( subsup == 1 &&  c == '-'){c = '\\u2212';ctx.font = s+'px Helvetica';}\
  753.  else\
  754.  if( subsup == 1 &&  c == '+'){c = '\\u002B';ctx.font = s+'px Helvetica';}\
  755.  else\
  756.  if( check_alpha(C) == 1 ){ctx.font = S+'px Helvetica';subsup = 0;baseline = 'middle';}\
  757.  else\
  758.  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
  759.  else{ ctx.font = S+'px Helvetica';};\
  760.  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
  761. };\
  762. ctx.stroke();\
  763. ctx.restore();\
  764. return;\
  765. };");
  766.         break;
  767.       case DRAW_TEXTFILL:/* not  used for userdraw */
  768.         fprintf(js_include_file,"\n/* draw textfill */\
  769. var text_fill_pattern;\
  770. function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
  771. var fc = %d+canvas_type;\
  772. var obj = create_canvas%d(fc,xsize,ysize);\
  773. var ctx = obj.getContext('2d');\
  774. ctx.font = fontfamily;\
  775. var dx = 2+(ctx.measureText(txt)).width;\
  776. var dy = 2+(ctx.measureText('MI')).width;\
  777. ctx.fillStyle='rgba(255,255,255,0.01)';\
  778. ctx.rect(0,0,xsize,ysize);\
  779. ctx.fill();\
  780. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  781. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  782. for(var x = 0 ; x <= xsize ; x = x + dx ){\
  783. for(var y = 0 ; y <= ysize ; y = y + dy ){\
  784.  ctx.fillText(txt, x, y);\
  785. };\
  786. };\
  787. if( use_userdraw ){\
  788. text_fill_pattern = ctx;\
  789. }\
  790. else\
  791. {\
  792. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  793. };\
  794. return;};",canvas_root_id,canvas_root_id);
  795.         break;
  796.       case DRAW_DIAMONDFILL:/* not used for userdraw */
  797.         fprintf(js_include_file,"\n/* draw hatch fill */\
  798. var diamond_fill_pattern;\
  799. function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  800. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  801. var fc = %d+canvas_type;\
  802. var obj = create_canvas%d(fc,xsize,ysize);\
  803. var ctx = obj.getContext('2d');\
  804. var x;\
  805. var y;\
  806. ctx.lineWidth = linewidth;\
  807. ctx.fillStyle='rgba(255,255,255,0.01)';\
  808. ctx.rect(0,0,xsize,ysize);\
  809. ctx.fill();\
  810. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  811. y = ysize;\
  812. ctx.beginPath();\
  813. for( x = 0 ; x <= xsize ; x = x + dx ){\
  814.  ctx.moveTo(x,0);\
  815.  ctx.lineTo(xsize,y);\
  816.  y = y - dy;\
  817. };\
  818. y=0;\
  819. for( x = xsize ; x >= 0 ; x = x - dx){\
  820. ctx.moveTo(x,ysize);\
  821. ctx.lineTo(0,y);\
  822. y = y + dy;\
  823. };\
  824. y = 0;\
  825. for( x = 0 ; x <= xsize ; x = x + dx ){\
  826. ctx.moveTo(x,0);\
  827. ctx.lineTo(0,y);\
  828. y = y + dy;\
  829. };\
  830. y = 0;\
  831. for( x = 0 ; x <= xsize ; x = x + dx ){\
  832. ctx.moveTo(xsize,y);\
  833. ctx.lineTo(x,ysize);\
  834. y = y + dy;\
  835. };\
  836. ctx.closePath();\
  837. ctx.stroke();\
  838. if( use_userdraw ){\
  839. diamond_fill_pattern = ctx;\
  840. }\
  841. else\
  842. {\
  843. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  844. };\
  845. return;\
  846. }",canvas_root_id,canvas_root_id);
  847.         break;
  848.       case DRAW_HATCHFILL:/* not used for userdraw */
  849.         fprintf(js_include_file,"\n/* draw hatch fill */\
  850. var hatch_fill_pattern;\
  851. function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  852. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  853. var fc = %d+canvas_type;\
  854. var obj = create_canvas%d(fc,xsize,ysize);\
  855. var ctx = obj.getContext('2d');\
  856. var x,y;\
  857. ctx.fillStyle='rgba(255,255,255,0.01)';\
  858. ctx.rect(0,0,xsize,ysize);\
  859. ctx.fill();\
  860. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  861. ctx.lineWidth = linewidth;\
  862. y = ysize;\
  863. ctx.beginPath();\
  864. for( x = 0 ; x <= xsize ; x = x + dx ){\
  865. ctx.moveTo(x,0);\
  866. ctx.lineTo(xsize,y);\
  867. y = y - dy;\
  868. };\
  869. y = 0;\
  870. for( x = xsize ; x >= dx ; x = x - dx){\
  871. ctx.moveTo(x,ysize);\
  872. ctx.lineTo(0,y);\
  873. y = y + dy;\
  874. };\
  875. ctx.closePath();\
  876. ctx.stroke();\
  877. if( use_userdraw ){\
  878. hatch_fill_pattern = ctx;\
  879. }\
  880. else\
  881. {\
  882. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  883. };\
  884. return;};",canvas_root_id,canvas_root_id);
  885.         break;
  886.  
  887.       case DRAW_LINES:/*  used for js-tracing */
  888.         fprintf(js_include_file,"\n/* draw lines */\
  889. function calc_line(x1,x2,y1,y2){\
  890. var marge = 2;\
  891. if(x1 < x2+marge && x1>x2-marge){\
  892.  return [x1,0,x1,ysize];\
  893. };\
  894. if(y1 < y2+marge && y1>y2-marge){\
  895.  return [0,y1,xsize,y1];\
  896. };\
  897. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  898. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  899. return [0,Y1,xsize,Y2];\
  900. };\
  901. var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
  902. ctx.save();\
  903. var line = new Array(4);\
  904. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  905. ctx.lineWidth = line_width;\
  906. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  907. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  908. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  909.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  910.  ctx.beginPath();\
  911.  ctx.moveTo(line[0],line[1]);\
  912.  ctx.lineTo(line[2],line[3]);\
  913.  ctx.closePath();\
  914.  ctx.stroke();\
  915.  }\
  916.  ctx.restore();\
  917.  return;\
  918. };");
  919.         break;
  920.  
  921.       case DRAW_CROSSHAIRS:/*  used for tracing */
  922.         fprintf(js_include_file,"\n/* draw crosshairs  */\
  923. var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
  924. ctx.save();\
  925. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  926. ctx.lineWidth = line_width;\
  927. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  928. var x1,x2,y1,y2;\
  929. for(var p = 0 ; p < x_points.length ; p++ ){\
  930.  x1 = x_points[p] - crosshair_size;\
  931.  x2 = x_points[p] + crosshair_size;\
  932.  y1 = y_points[p] - crosshair_size;\
  933.  y2 = y_points[p] + crosshair_size;\
  934.  ctx.beginPath();\
  935.  ctx.moveTo(x1,y1);\
  936.  ctx.lineTo(x2,y2);\
  937.  ctx.closePath();\
  938.  ctx.stroke();\
  939.  ctx.beginPath();\
  940.  ctx.moveTo(x2,y1);\
  941.  ctx.lineTo(x1,y2);\
  942.  ctx.closePath();\
  943.  ctx.stroke();\
  944. }\
  945. ctx.restore();\
  946.  return;\
  947. };");
  948.         break;
  949.       case DRAW_VIDEO:/* not  used for userdraw */
  950.         fprintf(js_include_file,"\n/* draw video */\
  951. var draw_video = function(canvas_root_id,x,y,w,h,URL){\
  952. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  953. var video_div = document.createElement(\"div\");\
  954. canvas_div.appendChild(video_div);\
  955. video_div.style.position = \"absolute\";\
  956. video_div.style.left = x+\"px\";\
  957. video_div.style.top = y+\"px\";\
  958. video_div.style.width = w+\"px\";\
  959. video_div.style.height = h+\"px\";\
  960. var video = document.createElement(\"video\");\
  961. video_div.appendChild(video);\
  962. video.style.width = w+\"px\";\
  963. video.style.height = h+\"px\";\
  964. video.autobuffer = true;\
  965. video.controls = true;video.autoplay = false;\
  966. var src = document.createElement(\"source\");\
  967. src.type = \"video/mp4\";\
  968. src.src = URL;\
  969. video.appendChild(src);\
  970. video.load();\
  971. return;\
  972. };");
  973.         break;
  974.       case DRAW_AUDIO:/* not used for userdraw */
  975.         fprintf(js_include_file,"\n/* draw audio */\
  976. var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  977. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  978. var audio_div = document.createElement(\"div\");\
  979. canvas_div.appendChild(audio_div);\
  980. audio_div.style.position = \"absolute\";\
  981. audio_div.style.left = x+\"px\";\
  982. audio_div.style.top = y+\"px\";\
  983. audio_div.style.width = w+\"px\";\
  984. audio_div.style.height = h+\"px\";\
  985. var audio = document.createElement(\"audio\");\
  986. audio_div.appendChild(audio);\
  987. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  988. audio.autobuffer = true;\
  989. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
  990. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
  991. var src1 = document.createElement(\"source\");\
  992. src1.type = \"audio/ogg\";\
  993. src1.src = URL1;\
  994. audio.appendChild(src1);\
  995. var src2 = document.createElement(\"source\");\
  996. src2.type = \"audio/mpeg\";\
  997. src2.src = URL2;\
  998. audio.appendChild(src2);\
  999. audio.load();\
  1000. return;\
  1001. };");
  1002.         break;
  1003.       case DRAW_HTTP:/* not  used for userdraw */
  1004.         fprintf(js_include_file,"\n/* draw http */\
  1005. var draw_http = function(canvas_root_id,x,y,w,h,URL){\
  1006. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  1007. var http_div = document.createElement(\"div\");\
  1008. var iframe = document.createElement(\"iframe\");\
  1009. canvas_div.appendChild(http_div);\
  1010. http_div.appendChild(iframe);\
  1011. iframe.src = URL;\
  1012. iframe.setAttribute(\"width\",w);\
  1013. iframe.setAttribute(\"height\",h);\
  1014. return;\
  1015. };");
  1016.         break;
  1017.       case DRAW_XML:
  1018. /*
  1019. !! function draw_xml(object)
  1020. !! produced by : DRAW_XML
  1021. !! used by commands: katex,latex,mathml,html,obabel
  1022. !! uses js-functions: calculate_size(xml_div),rad2deg(rad)
  1023. !! user interaction: drag,onclick,slider
  1024. !! reply function: read_dragdrop()
  1025.  
  1026. onclick=0; no interaction
  1027. onclick=1: click
  1028. onclick=2: drag ==> always centered (use_offset=4)
  1029. onclick=3: slider + click on object
  1030. onclick=4: slider (always active , keyword 'active' in slider params)
  1031. onclick=5: slider + dragdrop
  1032. xy:  drag_type = 0;
  1033. x:   drag_type = 1;
  1034. y:   drag_type = 2;
  1035.  
  1036. obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
  1037. */
  1038.  
  1039.         fprintf(js_include_file,"\n/* draw xml */\
  1040. function centered(xml_div,obj){\
  1041. var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
  1042. var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
  1043. obj.offset = [ ww , hh ];\
  1044. /*xml_div.style.left = obj.x[0] - obj.offset[0] +'px';\
  1045. xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';*/\
  1046. xml_div.style.left = (obj.x[0] - obj.offset[0])/xsize*100 +'%%';\
  1047. xml_div.style.top  = (obj.y[0] - obj.offset[1])/ysize*100 +'%%';\
  1048. };\
  1049. function rad2deg(rad){return rad*180/(Math.PI);};\
  1050. if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
  1051. function draw_xml(obj){\
  1052. var mouse;var xy = [obj.x[0],obj.y[0]];\
  1053. var xml_div;\
  1054. 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};\
  1055. if( obj.once ){\
  1056.  xml_div = document.createElement('DIV');\
  1057.  canvas_div.appendChild(xml_div);\
  1058.  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
  1059.  xml_div.id = 'xml_div'+obj.id;\
  1060.  xml_div.innerHTML = obj.mathml;\
  1061.  xml_div.classList.add('canvasdraw_xml');\
  1062.  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
  1063.  xml_div.style.font = obj.fontfamily;\
  1064.  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]) ];};\
  1065.  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
  1066. } else {\
  1067.  xml_div = document.getElementById('xml_div'+obj.id );\
  1068. };\
  1069. if( typeof(xml_div) === 'undefined' ){console.log('[canvasutil] xml_div undefined'); return;};\
  1070. /*xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
  1071. xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';*/\
  1072. xml_div.style.left = parseInt((obj.x[0] - obj.offset[0])/xsize*100) +'%%';\
  1073. xml_div.style.top  = parseInt((obj.y[0] - obj.offset[1])/ysize*100) +'%%';\
  1074. var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
  1075. var no_color = 'rgba(255,255,255,0)';var dragging = false;\
  1076. if( obj.use_affine != 0 || obj.angle != 0 ){\
  1077.  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)';\
  1078. };\
  1079. if( obj.once ){\
  1080.  obj.once = false;\
  1081.  switch(obj.onclick){\
  1082.   case 2:\
  1083.    if(isTouch){\
  1084.     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);\
  1085.     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);\
  1086.     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);\
  1087.     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);\
  1088.    } else {\
  1089.     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);\
  1090.     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);\
  1091.     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);\
  1092.    };\
  1093.    break;\
  1094.   case 1:\
  1095.    if(isTouch){\
  1096.     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);\
  1097.    } else {\
  1098.     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);\
  1099.    };\
  1100.    break;\
  1101.   case 3:\
  1102.    if(isTouch){\
  1103.     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);\
  1104.    } else {\
  1105.     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);\
  1106.    };\
  1107.    break;\
  1108.   case 4:slidergroup[obj.object_cnt] = obj;break;\
  1109.   case 5:slidergroup[obj.object_cnt] = obj;\
  1110.    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);\
  1111.    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);\
  1112.    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);\
  1113.    break;\
  1114.   default: break;\
  1115.  };\
  1116. };\
  1117. return;\
  1118. };",mathjax);
  1119.  
  1120. /*
  1121. 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));\
  1122. */
  1123.         break;
  1124.       case DRAW_SGRAPH:
  1125. /*
  1126.  xstart = given
  1127.  ystart = given
  1128.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  1129. */
  1130.         fprintf(js_include_file,"\n/* draw sgraph */\
  1131. var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  1132. 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);};\
  1133. var ctx = obj.getContext(\"2d\");\
  1134. ctx.font = fontfamily;\
  1135. var minor_opacity = 0.8*opacity;\
  1136. ctx.clearRect(0,0,xsize,ysize);\
  1137. var zero_x = 0.1*xsize;\
  1138. var zero_y = 0.9*ysize;\
  1139. var snor_x;var snor_y;\
  1140. if( xstart != xmin){\
  1141.  snor_x = 0.1*xsize;\
  1142. }else{\
  1143.  snor_x = 0;\
  1144.  xstart = xmin;\
  1145. };\
  1146. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1147. ctx.lineWidth = 2;\
  1148. ctx.beginPath();\
  1149. ctx.moveTo(xsize,zero_y);\
  1150. ctx.lineTo(zero_x,zero_y);\
  1151. ctx.lineTo(zero_x,0);\
  1152. ctx.stroke();\
  1153. ctx.closePath();\
  1154. ctx.beginPath();\
  1155. ctx.moveTo(zero_x,zero_y);\
  1156. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  1157. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  1158. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  1159. ctx.lineTo(zero_x + snor_x,zero_y);\
  1160. ctx.stroke();\
  1161. ctx.closePath();\
  1162. ctx.beginPath();\
  1163. var num = xstart;\
  1164. var flipflop = 1;\
  1165. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  1166. var txtsize;var txt_marge=step_x - 5;\
  1167. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1168.  txtsize = ctx.measureText(num).width;\
  1169.  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
  1170.  if( flipflop == 1){\
  1171.   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
  1172.  } else {\
  1173.   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
  1174.  };\
  1175.  num = num + xmajor;\
  1176. };\
  1177. ctx.stroke();\
  1178. ctx.closePath();\
  1179. ctx.lineWidth = 1;\
  1180. ctx.beginPath();\
  1181. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1182.   ctx.moveTo(x,zero_y);\
  1183.   ctx.lineTo(x,0);\
  1184. };\
  1185. ctx.stroke();\
  1186. ctx.closePath();\
  1187. if( xminor > 1){\
  1188.  ctx.lineWidth = 0.5;\
  1189.  ctx.beginPath();\
  1190.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1191.  var minor_step_x = step_x / xminor;\
  1192.  var nx;\
  1193.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  1194.    num = 1;\
  1195.    for(var p = 1 ; p < xminor ; p++){\
  1196.     nx = x + num*minor_step_x;\
  1197.     ctx.moveTo(nx,zero_y);\
  1198.     ctx.lineTo(nx,0);\
  1199.     num++;\
  1200.    };\
  1201.  };\
  1202.  ctx.stroke();\
  1203.  ctx.closePath();\
  1204.  ctx.beginPath();\
  1205.  ctx.lineWidth = 2;\
  1206.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1207.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1208.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  1209.  };\
  1210.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  1211.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  1212.  };\
  1213.  ctx.stroke();\
  1214.  ctx.closePath();\
  1215.  ctx.lineWidth = 0.5;\
  1216. };\
  1217. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  1218. if( ystart != ymin){\
  1219.  snor_y = 0.1*ysize;\
  1220. } else {\
  1221.  snor_y = 0;\
  1222.  ystart = ymin;\
  1223. };\
  1224. ctx.lineWidth = 2;\
  1225. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1226. ctx.beginPath();\
  1227. ctx.moveTo(zero_x,zero_y);\
  1228. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  1229. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  1230. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  1231. ctx.lineTo(zero_x,zero_y - snor_y);\
  1232. ctx.stroke();\
  1233. ctx.closePath();\
  1234. ctx.beginPath();\
  1235. ctx.lineWidth = 1;\
  1236. num = ystart;\
  1237. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  1238. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  1239.  ctx.moveTo(zero_x,y);\
  1240.  ctx.lineTo(xsize,y);\
  1241.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  1242.  num = num + ymajor;\
  1243. };\
  1244. ctx.stroke();\
  1245. ctx.closePath();\
  1246. if( yminor > 1){\
  1247.  ctx.lineWidth = 0.5;\
  1248.  ctx.beginPath();\
  1249.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1250.  var minor_step_y = step_y / yminor;\
  1251.  var ny;\
  1252.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  1253.   num = 1;\
  1254.   for(var p = 1 ;p < yminor;p++){\
  1255.     ny = y + num*minor_step_y;\
  1256.     ctx.moveTo(zero_x,ny);\
  1257.     ctx.lineTo(xsize,ny);\
  1258.     num++;\
  1259.    };\
  1260.  };\
  1261.  ctx.stroke();\
  1262.  ctx.closePath();\
  1263.  ctx.lineWidth = 2;\
  1264.  ctx.beginPath();\
  1265.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1266.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  1267.   ctx.moveTo(zero_x,y);\
  1268.   ctx.lineTo(zero_x+12,y);\
  1269.  };\
  1270.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  1271.   ctx.moveTo(zero_x,y);\
  1272.   ctx.lineTo(zero_x+6,y);\
  1273.  };\
  1274.  ctx.stroke();\
  1275.  ctx.closePath();\
  1276. };\
  1277. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  1278. if( typeof(legend%d)  !== 'undefined' ){\
  1279.  ctx.globalAlpha = 1.0;\
  1280.  var y_offset = 2*font_size;\
  1281.  var txt;var txt_size;\
  1282.  var x_offset = xsize - 2*font_size;\
  1283.  var l_length = legend%d.length;var barcolor = new Array();\
  1284.  if( typeof(legendcolors%d) !== 'undefined' ){\
  1285.   for(var p = 0 ; p < l_length ; p++){\
  1286.    barcolor[p] = legendcolors%d[p];\
  1287.   };\
  1288.  } else {\
  1289.   if( barcolor.length == 0 ){\
  1290.    for(var p = 0 ; p < l_length ; p++){\
  1291.     barcolor[p] = stroke_color;\
  1292.    };\
  1293.   };\
  1294.  };\
  1295.  for(var p = 0; p < l_length; p++){\
  1296.   ctx.fillStyle = barcolor[p];\
  1297.   txt = legend%d[p];\
  1298.   txt_size = ctx.measureText(txt).width;\
  1299.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  1300.   y_offset = parseInt(y_offset + 1.5*font_size);\
  1301.  };\
  1302. };\
  1303. if( typeof(xaxislabel) !== 'undefined' ){\
  1304.   ctx.fillStyle = \'#000000\';\
  1305.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  1306.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  1307. };\
  1308. if( typeof(yaxislabel) !== 'undefined'){\
  1309.   ctx.save();\
  1310.   ctx.fillStyle = \'#000000\';\
  1311.   var txt_size = ctx.measureText(yaxislabel).width;\
  1312.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  1313.   ctx.rotate(-0.5*Math.PI);\
  1314.   ctx.fillText(yaxislabel,0,0);\
  1315.   ctx.restore();\
  1316. };\
  1317. };",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);
  1318.         break;
  1319.       case DRAW_NUMBERLINE:
  1320. fprintf(js_include_file,"\n/* draw numberline */\
  1321. var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
  1322. var obj = create_canvas%d(canvas_type,xsize,ysize);\
  1323. var ctx = obj.getContext(\"2d\");\
  1324. ctx.lineWidth = linewidth || 1;\
  1325. ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
  1326. ctx.font = fontfamily || 'Arial 12px';\
  1327. var fontsize = parseInt(ctx.font);\
  1328. ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
  1329. x1 = x2px(x1);\
  1330. x0 = x2px(x0);\
  1331. y0 = y2px(y0);\
  1332. y1 = y2px(y1);\
  1333. var sub_devision = -1;\
  1334. if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
  1335. var ybase1 = parseInt( y0 + fontsize + 2 );\
  1336. var ybase2 = parseInt( ybase1 + fontsize + 2 );\
  1337. var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
  1338. var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
  1339. xmajor = x2px(xmajor) - x2px(0);\
  1340. var i;var len;var p;\
  1341. xminor = xmajor / xminor;\
  1342. ctx.beginPath();\
  1343. for(p = x0 ; p < x1 ; p = p + xmajor){\
  1344.  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
  1345.  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
  1346.   ctx.moveTo(s,y0);\
  1347.   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
  1348.   i++;\
  1349.  };\
  1350. };\
  1351. ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
  1352. ctx.closePath();\
  1353. ctx.stroke();\
  1354. if( use_axis_numbering >-1 ){\
  1355.  var str = x_strings[use_axis_numbering];\
  1356.  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1357.  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
  1358.  ctx.beginPath();\
  1359.  if( x_strings_up[use_axis_numbering] == null){\
  1360.   for(var p = 0 ; p < len ; p = p+2){\
  1361.    var x_nums = x2px(eval(str[p]));\
  1362.    var x_text = str[p+1];\
  1363.    corr = ctx.measureText(x_text).width;\
  1364.    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1365.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
  1366.   };\
  1367.  } else {\
  1368.   for(var p = 0 ; p < len ; p = p+2){\
  1369.    x_nums = x2px(eval(str[p]));\
  1370.    x_text = str[p+1];\
  1371.    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
  1372.    ctx.save();\
  1373.    ctx.translate(x_nums+0.5*fontsize, corr);\
  1374.    ctx.rotate(-1.5708);\
  1375.    ctx.fillText(x_text,0,0);\
  1376.    ctx.restore();\
  1377.   };\
  1378.  }\
  1379. } else {\
  1380.  var corr;var num;var flipflop = 0;var off = ybase1;\
  1381.  var prec = parseInt(Math.log(precision)/Math.log(10));\
  1382.  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
  1383.   num = (px2x(p)).toFixed(prec);\
  1384.   corr = ctx.measureText(num).width;\
  1385.   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1386.   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
  1387.  };\
  1388. };\
  1389. };",canvas_root_id);
  1390.         break;
  1391.       case DRAW_GRID:/* not used for userdraw */
  1392.         fprintf(js_include_file,"\n/* draw grid */\
  1393. 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){\
  1394. 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);};\
  1395. var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
  1396. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  1397. ctx.save();\
  1398. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1399. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  1400. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  1401. ctx.font = font_family;\
  1402. var barcolor = new Array();\
  1403. var xstep = xsize*xmajor/(xmax - xmin);\
  1404. var ystep = ysize*ymajor/(ymax - ymin);\
  1405. var x2step = xstep / xminor;\
  1406. var y2step = ystep / yminor;\
  1407. var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
  1408. if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
  1409. if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
  1410. ctx.beginPath();\
  1411. ctx.lineWidth = line_width;\
  1412. ctx.strokeStyle = stroke_color;\
  1413. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1414. ctx.moveTo(p,0);\
  1415. ctx.lineTo(p,ysize);\
  1416. };\
  1417. for(var p = zero_x ; p > 0; p = p - xstep){\
  1418. ctx.moveTo(p,0);\
  1419. ctx.lineTo(p,ysize);\
  1420. };\
  1421. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1422. ctx.moveTo(0,p);\
  1423. ctx.lineTo(xsize,p);\
  1424. };\
  1425. for(var p = zero_y ; p > 0; p = p - ystep){\
  1426. ctx.moveTo(0,p);\
  1427. ctx.lineTo(xsize,p);\
  1428. };\
  1429. if( typeof(xaxislabel) !== 'undefined' ){\
  1430. ctx.save();\
  1431. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1432. var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
  1433. ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
  1434. ctx.restore();\
  1435. };\
  1436. if( typeof(yaxislabel) !== 'undefined' ){\
  1437. ctx.save();\
  1438. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1439. var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
  1440. ctx.translate(zero_x+tics_length + font_size,corr);\
  1441. ctx.rotate(-0.5*Math.PI);\
  1442. ctx.fillText(yaxislabel,0,0);\
  1443. ctx.restore();\
  1444. };\
  1445. ctx.stroke();\
  1446. ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  1447.  
  1448.         if( use_axis == 1 ){
  1449.           fprintf(js_include_file,"\
  1450. ctx.save();\
  1451. ctx.beginPath();\
  1452. ctx.strokeStyle = stroke_color;\
  1453. ctx.lineWidth = 0.6*line_width;\
  1454. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1455.  ctx.moveTo(p,0);\
  1456.  ctx.lineTo(p,ysize);\
  1457. };\
  1458. for(var p = zero_x ; p > 0; p = p - x2step){\
  1459.  ctx.moveTo(p,0);\
  1460.  ctx.lineTo(p,ysize);\
  1461. };\
  1462. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1463.  ctx.moveTo(0,p);\
  1464.  ctx.lineTo(xsize,p);\
  1465. };\
  1466. for(var p = zero_y ; p > 0; p = p - y2step){\
  1467.  ctx.moveTo(0,p);\
  1468.  ctx.lineTo(xsize,p);\
  1469. };\
  1470. ctx.stroke();\
  1471. ctx.closePath();\
  1472. ctx.beginPath();\
  1473. ctx.lineWidth = 2*line_width;\
  1474. ctx.strokeStyle = axis_color;\
  1475. ctx.moveTo(0,zero_y);\
  1476. ctx.lineTo(xsize,zero_y);\
  1477. ctx.moveTo(zero_x,0);\
  1478. ctx.lineTo(zero_x,ysize);\
  1479. ctx.stroke();\
  1480. ctx.closePath();\
  1481. ctx.lineWidth = line_width+0.5;\
  1482. ctx.beginPath();\
  1483. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1484.  ctx.moveTo(p,zero_y-tics_length);\
  1485.  ctx.lineTo(p,zero_y+tics_length);\
  1486. };\
  1487. for(var p = zero_x ; p > 0; p = p - xstep){\
  1488.  ctx.moveTo(p,zero_y-tics_length);\
  1489.  ctx.lineTo(p,zero_y+tics_length);\
  1490. };\
  1491. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1492.  ctx.moveTo(zero_x-tics_length,p);\
  1493.  ctx.lineTo(zero_x+tics_length,p);\
  1494. };\
  1495. for(var p = zero_y ; p > 0; p = p - ystep){\
  1496.  ctx.moveTo(zero_x-tics_length,p);\
  1497.  ctx.lineTo(zero_x+tics_length,p);\
  1498. };\
  1499. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1500.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1501.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1502. };\
  1503. for(var p = zero_x ; p > 0; p = p - x2step){\
  1504.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1505.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1506. };\
  1507. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1508.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1509.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1510. };\
  1511. for(var p = zero_y ; p > 0; p = p - y2step){\
  1512.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1513.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1514. };\
  1515. ctx.stroke();\
  1516. ctx.closePath();\
  1517. ctx.restore();");
  1518.         }
  1519.         if( use_axis_numbering != -1 ){
  1520.           fprintf(js_include_file,"\
  1521. ctx.save();\
  1522. ctx.fillColor = axis_color;\
  1523. ctx.strokeStyle = axis_color;\
  1524. ctx.lineWidth = 2*line_width;\
  1525. ctx.font = font_family;\
  1526. var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  1527. if( x_strings[use_axis_numbering] != null ){\
  1528.  var str = x_strings[use_axis_numbering];\
  1529.  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1530.  ctx.beginPath();\
  1531.  if( x_strings_up[use_axis_numbering] == null){\
  1532.   for(var p = 0 ; p < len ; p = p+2){\
  1533.    var x_nums = x2px(eval(str[p]));\
  1534.    var x_text = str[p+1];\
  1535.    corr = ctx.measureText(x_text).width;\
  1536.    skip = 1.2*corr/xstep;\
  1537.    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  1538.    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
  1539.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  1540.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1541.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1542.   };\
  1543.  } else {\
  1544.   for(var p = 0 ; p < len ; p = p+2){\
  1545.    var x_nums = x2px(eval(str[p]));\
  1546.    var x_text = str[p+1];\
  1547.    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
  1548.    if( corr > ysize ){corr = ysize;};\
  1549.    ctx.save();\
  1550.    ctx.translate(x_nums+0.25*font_size, corr);\
  1551.    ctx.rotate(-1.5708);\
  1552.    ctx.fillText(x_text,0,0);\
  1553.    ctx.restore();\
  1554.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1555.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1556.   };\
  1557.  };\
  1558.  ctx.closePath();\
  1559. } else {\
  1560.  skip = 1;cnt = px2x(zero_x);\
  1561.  prec = Math.log(precision)/(Math.log(10));\
  1562.  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
  1563.  for( var p = zero_x ; p < xsize ; p = p+xstep){\
  1564.   if(skip == 0 ){\
  1565.    disp_cnt = cnt.toFixed(prec);\
  1566.    corr = ctx.measureText(disp_cnt).width;\
  1567.    skip = parseInt(1.2*corr/xstep);\
  1568.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1569.   } else {\
  1570.    skip--;\
  1571.   };\
  1572.   cnt = cnt + xmajor;\
  1573.  };\
  1574.  cnt = px2x(zero_x);skip = 1;\
  1575.  for( var p = zero_x ; p > 0 ; p = p-xstep){\
  1576.   if(skip == 0 ){\
  1577.    disp_cnt = cnt.toFixed(prec);\
  1578.    corr = ctx.measureText(disp_cnt).width;\
  1579.    skip = parseInt(1.2*corr/xstep);\
  1580.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1581.   } else {\
  1582.    skip--;\
  1583.   };\
  1584.   cnt = cnt - xmajor;\
  1585.  };\
  1586. };\
  1587. if( y_strings != null ){\
  1588.  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  1589.  ctx.beginPath();\
  1590.  for(var p = 0 ; p < len ; p = p+2){\
  1591.   var y_nums = y2px(eval(y_strings[p]));\
  1592.   var y_text = y_strings[p+1];\
  1593.   corr = 2 + tics_length + ctx.measureText(y_text).width;\
  1594.   if( corr > zero_x){corr = parseInt(zero_x+2); }\
  1595.   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
  1596.   ctx.moveTo(zero_x - tics_length,y_nums);\
  1597.   ctx.lineTo(zero_x + tics_length,y_nums);\
  1598.  };\
  1599.  ctx.closePath();\
  1600. } else {\
  1601.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1602.  cnt = px2y(zero_y);skip = 1;\
  1603.  for( var p = zero_y ; p < ysize ; p = p+ystep){\
  1604.   if(skip == 0 ){\
  1605.    skip = parseInt(1.4*font_size/ystep);\
  1606.    disp_cnt = cnt.toFixed(prec);\
  1607.    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1608.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1609.   } else {\
  1610.    skip--;\
  1611.   };\
  1612.   cnt = cnt - ymajor;\
  1613.  };\
  1614.  corr = 0;cnt = px2y(zero_y);skip = 1;\
  1615.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1616.  for( var p = zero_y ; p > 0 ; p = p-ystep){\
  1617.   if(skip == 0 ){\
  1618.    skip = parseInt(1.4*font_size/ystep);\
  1619.    disp_cnt = cnt.toFixed(prec);\
  1620.    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1621.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1622.   } else {\
  1623.    skip--;\
  1624.   };\
  1625.   cnt = cnt + ymajor;\
  1626.  };\
  1627. };\
  1628. ctx.stroke();\
  1629. ctx.restore();");
  1630.         }
  1631.         if( legend_cnt != -1 ){
  1632.           fprintf(js_include_file,"ctx.save();\
  1633. ctx.globalAlpha = 1.0;\
  1634. ctx.font = \"bold \"+font_size+\"px Arial\";\
  1635. var y_offset = 2*font_size;\
  1636. var txt;var txt_size;\
  1637. var x_offset = xsize - 2*font_size;\
  1638. var l_length = legend0.length;\
  1639. if( typeof(legendcolors0) !== 'undefined' ){\
  1640.  for(var p = 0 ; p < l_length ; p++){\
  1641.    barcolor[p] = legendcolors0[p];\
  1642.  };\
  1643. } else {\
  1644.  if( barcolor.length == 0 ){\
  1645.   for(var p = 0 ; p < l_length ; p++){\
  1646.    barcolor[p] = stroke_color;\
  1647.   };\
  1648.  };\
  1649. };\
  1650. for(var p = 0; p < l_length; p++){\
  1651.  ctx.fillStyle = barcolor[p];\
  1652.  txt = legend0[p];\
  1653.  txt_size = ctx.measureText(txt).width;\
  1654.  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
  1655.  y_offset = parseInt(y_offset + 1.5*font_size);\
  1656. };\
  1657. ctx.restore();");
  1658.         }
  1659.         if( barchart_cnt != 0 ){
  1660.           fprintf(js_include_file,"ctx.save();\
  1661. var num_barcharts = 0;\
  1662. var bar_name = eval('barchart_0');\
  1663. while( typeof(bar_name) !== 'undefined' ){\
  1664.    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
  1665. };\
  1666. var bar_width = parseInt(0.8*x2step/(num_barcharts));\
  1667. for(var i=0 ; i< num_barcharts ; i++){\
  1668.  bar_name = eval('barchart_'+i);\
  1669.  var bar_x = new Array();\
  1670.  var bar_y = new Array();\
  1671.  var lb = bar_name.length;\
  1672.  var idx = 0;\
  1673.  var dx = parseInt(0.5*i*bar_width);\
  1674.  for( var p = 0 ; p < lb ; p = p + 3 ){\
  1675.   bar_x[idx] = x2px(bar_name[p]);\
  1676.   bar_y[idx] = y2px(bar_name[p+1]);\
  1677.   barcolor[idx] = bar_name[p+2];\
  1678.   idx++;\
  1679.  };\
  1680.  ctx.globalAlpha = fill_opacity;\
  1681.  for( var p = 0; p < idx ; p++ ){\
  1682.   ctx.beginPath();\
  1683.   ctx.strokeStyle = barcolor[p];\
  1684.   ctx.fillStyle = barcolor[p];\
  1685.   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
  1686.   ctx.fill();\
  1687.   ctx.stroke();\
  1688.   ctx.closePath();\
  1689.  };\
  1690. };\
  1691. ctx.restore();");
  1692.         }
  1693.         if( linegraph_cnt != 0 ){
  1694.           fprintf(js_include_file,"ctx.save();\
  1695. ctx.globalAlpha = 1.0;\
  1696. var i = 0;\
  1697. var line_name = eval('linegraph_'+i);\
  1698. while ( typeof(line_name) !== 'undefined' ){\
  1699.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  1700.  ctx.lineWidth = parseInt(line_name[1]);\
  1701.  if(line_name[2] == \"1\"){\
  1702.   var d1 = parseInt(line_name[3]);\
  1703.   var d2 = parseInt(line_name[4]);\
  1704.   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
  1705.  } else {\
  1706.  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
  1707.  };\
  1708.  var data_x = new Array();var data_y = new Array();\
  1709.  var lb = line_name.length;var idx = 0;\
  1710.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  1711.   data_x[idx] = x2px(line_name[p]);\
  1712.   data_y[idx] = y2px(line_name[p+1]);\
  1713.   idx++;\
  1714.  };\
  1715.  for( var p = 0; p < idx ; p++){\
  1716.   ctx.beginPath();\
  1717.   ctx.moveTo(data_x[p],data_y[p]);\
  1718.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  1719.   ctx.stroke();\
  1720.   ctx.closePath();\
  1721.  };\
  1722.  i++;\
  1723.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  1724. };\
  1725. ctx.restore();return;");
  1726.         }
  1727.         fprintf(js_include_file,"};");
  1728.         break;
  1729.       case DRAW_PIECHART:
  1730.         fprintf(js_include_file,"\n/* draw piecharts */\
  1731. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1732. function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
  1733. var obj;\
  1734. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1735.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1736. } else {\
  1737.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1738. };\
  1739. var center_text = use_offset || 0;\
  1740. var ld = data_color_list.length;\
  1741. var sum = 0;\
  1742. var idx = 0;\
  1743. var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
  1744. var colors = new Array();\
  1745. var data = new Array();\
  1746. for(var p = 0;p < ld; p = p + 2){\
  1747.  data[idx] = parseFloat(data_color_list[p]);\
  1748.  sum = sum + data[idx];\
  1749.  colors[idx] = data_color_list[p+1];\
  1750.  idx++;\
  1751. };\
  1752. if( use_filled > 1 ){\
  1753.  var i = 2;\
  1754.  for(var p = 0 ;  p < idx ; p++){\
  1755.   if(i > 5 ){ i = 2; };\
  1756.   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
  1757.  };\
  1758. };\
  1759. var ctx = obj.getContext(\"2d\");\
  1760. ctx.save();\
  1761. var angle;\
  1762. var angle_end = 0;\
  1763. var offset = Math.PI / 2;\
  1764. ctx.globalAlpha = fill_opacity;\
  1765. var angles = [];\
  1766. for(var p=0; p < idx; p++){\
  1767.  ctx.beginPath();\
  1768.  ctx.moveTo(x_center,y_center);\
  1769.  angle = Math.PI * (2 * data[p] / sum);\
  1770.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  1771.  ctx.lineTo(x_center, y_center);\
  1772.  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
  1773.  ctx.fill();\
  1774.  ctx.closePath();\
  1775.  angles.push(angle_end + angle - offset);\
  1776.  angle_end  = angle_end + angle;\
  1777. };\
  1778. if(typeof(legend0) !== 'undefined'){\
  1779.  var legenda = eval(\"legend\"+legend_cnt);\
  1780.  ctx.globalAlpha = 1.0;\
  1781.  ctx.font = font_family;\
  1782.  var y_offset = font_size;\
  1783.  var x_offset = 0;\
  1784.  var txt;var txt_size;\
  1785.  for(var p = 0; p < idx; p++){\
  1786.   ctx.fillStyle = colors[p];\
  1787.   txt = legenda[p];\
  1788.   txt_size = ctx.measureText(txt).width + 2;\
  1789.   if(center_text == 4){\
  1790.    ctx.save();\
  1791.    ctx.translate(x_center, y_center);\
  1792.    ctx.rotate(angles[p]);\
  1793.    ctx.fillText(txt,radius-txt_size,0);\
  1794.    ctx.restore();\
  1795.   } else {\
  1796.    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  1797.    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
  1798.    y_offset = parseInt(y_offset + 1.5*font_size);\
  1799.   };\
  1800.  };\
  1801. };\
  1802. ctx.restore();\
  1803. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1804.         break;
  1805.  
  1806.       case DRAW_JSBOXPLOT:
  1807.         fprintf(js_include_file,"\n/* draw jsboxplots */\
  1808. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1809. function statistics(data){\
  1810. var len = data.length;\
  1811. var min = 10000000;\
  1812. var max = -10000000;\
  1813. var sum = 0;var d;\
  1814. for(var i=0;i<len;i++){\
  1815.  d = data[i];\
  1816.  if(d < min){min = d;}else{if(d > max){max = d;};};\
  1817.  sum+= parseFloat(data[i]);\
  1818. };\
  1819. var mean = parseFloat(sum/len);\
  1820. var variance = 0;\
  1821. for(var i=0;i<len;i++){\
  1822.  d = data[i];\
  1823.  variance += (d - mean)*(d - mean);\
  1824. };\
  1825. variance = parseFloat(variance / len);\
  1826. var std = Math.sqrt(variance);\
  1827. data.sort(function(a,b){return a - b;});\
  1828. var median;var Q1;var Q3;\
  1829. var half = Math.floor(0.5*len);\
  1830. var q1 = Math.floor(0.25*len);\
  1831. var q3 = Math.floor(0.75*len);\
  1832. var half = Math.floor(0.5*len);\
  1833. if(len %%2 == 1){\
  1834.  median = data[half];\
  1835.  Q1 = data[q1];\
  1836.  Q3 = data[q3];\
  1837. } else {\
  1838.  median = (data[half - 1] + data[half] )/2;\
  1839.  Q1 = (data[q1 - 1] + data[q1] )/2;\
  1840.  Q3 = (data[q3 - 1] + data[q3] )/2;\
  1841. };\
  1842. return [min,Q1,median,Q3,max];\
  1843. };");
  1844.         break;
  1845.       case DRAW_BOXPLOT:
  1846.         fprintf(js_include_file,"\n/* draw boxplots */\
  1847. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1848. 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){\
  1849. var obj;\
  1850. 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);};\
  1851. var ctx = obj.getContext(\"2d\");\
  1852. ctx.clearRect(0,0,xsize,ysize);\
  1853. ctx.save();\
  1854. ctx.lineWidth = line_width;\
  1855. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1856. var colors = new Array(2);\
  1857. colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  1858. colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1859. if( use_filled > 1 ){\
  1860.   var pat = create_Pattern(0,0,3,colors[0]);\
  1861.   all_fill_patterns[0] = pat;\
  1862.   pat = create_Pattern(0,0,4,colors[1]);\
  1863.   all_fill_patterns[1] = pat;\
  1864. };\
  1865. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  1866. var hh = 0.25*hw;\
  1867. switch(boxplot_source){\
  1868.  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
  1869.  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
  1870.  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
  1871.  default: break;\
  1872. };\
  1873. var min,Q1,median,Q3,max;\
  1874. if(xy == 1 ){\
  1875.  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
  1876.  hh = Math.abs(y2px(hh) - y2px(ystart));\
  1877.  hw = Math.abs(y2px(hw) - y2px(ystart));\
  1878.  cxy = y2px(cxy);\
  1879.  ctx.beginPath();\
  1880.  ctx.moveTo(min,cxy);\
  1881.  ctx.lineTo(Q1,cxy);\
  1882.  ctx.moveTo(Q3,cxy);\
  1883.  ctx.lineTo(max,cxy);\
  1884.  ctx.moveTo(min,cxy+hh);\
  1885.  ctx.lineTo(min,cxy-hh);\
  1886.  ctx.moveTo(max,cxy+hh);\
  1887.  ctx.lineTo(max,cxy-hh);\
  1888.  ctx.closePath();\
  1889.  ctx.stroke();\
  1890.  ctx.beginPath();\
  1891.  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
  1892.  ctx.closePath();\
  1893.  if( use_filled != 0 ){\
  1894.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1895.   ctx.fill();\
  1896.  };\
  1897.  ctx.stroke();\
  1898.  ctx.beginPath();\
  1899.  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
  1900.  ctx.closePath();\
  1901.  if( use_filled != 0 ){\
  1902.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1903.   ctx.fill();\
  1904.  };\
  1905.  ctx.stroke();\
  1906. }else{\
  1907.  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
  1908.  hh = Math.abs(x2px(hh) - x2px(xstart));\
  1909.  hw = Math.abs(x2px(hw) - x2px(xstart));\
  1910.  cxy = x2px(cxy);\
  1911.  ctx.beginPath();\
  1912.  ctx.moveTo(cxy,min);\
  1913.  ctx.lineTo(cxy,Q1);\
  1914.  ctx.moveTo(cxy,Q3);\
  1915.  ctx.lineTo(cxy,max);\
  1916.  ctx.moveTo(cxy + hh,min);\
  1917.  ctx.lineTo(cxy - hh,min);\
  1918.  ctx.moveTo(cxy + hh,max);\
  1919.  ctx.lineTo(cxy - hh,max);\
  1920.  ctx.closePath;\
  1921.  ctx.stroke();\
  1922.  ctx.beginPath();\
  1923.  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
  1924.  ctx.closePath();\
  1925.  if( use_filled != 0 ){\
  1926.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1927.   ctx.fill();\
  1928.  };\
  1929.  ctx.stroke();\
  1930.  ctx.beginPath();\
  1931.  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
  1932.  ctx.closePath();\
  1933.  if( use_filled != 0 ){\
  1934.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1935.   ctx.fill();\
  1936.  };\
  1937.  ctx.stroke();\
  1938. };\
  1939. ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
  1940.         break;
  1941.       case DRAW_CENTERSTRING:
  1942.         fprintf(js_include_file,"\n/* draw centerstring */\
  1943. var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
  1944. var obj;\
  1945. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1946.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1947. } else {\
  1948.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1949. };\
  1950. var ctx = obj.getContext(\"2d\");\
  1951. ctx.save();\
  1952. ctx.clearRect(0,0,xsize,ysize);\
  1953. ctx.font = font_family;\
  1954. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1955. var stringwidth = ctx.measureText(text).width;\
  1956. var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
  1957. ctx.fillText(text,x,y2px(y));\
  1958. ctx.restore();\
  1959. return;\
  1960. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1961.         break;
  1962.       case DRAW_TEXTS:
  1963.         fprintf(js_include_file,"\n/* draw text */\
  1964. var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
  1965. var obj;\
  1966. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1967.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1968. } else {\
  1969.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1970. };\
  1971. var ctx = obj.getContext(\"2d\");\
  1972. if( font_family != 'null' ){\
  1973.  ctx.font = font_family;\
  1974. } else {\
  1975.  ctx.font = font_size+'px Arial';\
  1976. };\
  1977. 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;};};\
  1978. if(angle2 == 0 && angle != 0){\
  1979.  ctx.save();\
  1980.  if(use_rotate == 1 ){\
  1981.  ctx.rotate(angle*Math.PI/180);};\
  1982.  ctx.restore();\
  1983. };\
  1984. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1985. if(angle2 != 0){\
  1986.  ctx.save();\
  1987.  ctx.translate(x,y);\
  1988.  ctx.rotate((360-angle2)*(Math.PI / 180));\
  1989.  ctx.fillText(text,0,0);\
  1990.  ctx.restore();\
  1991. } else {\
  1992.  ctx.fillText(text,x,y);\
  1993. };\
  1994. return;\
  1995. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1996.         break;
  1997.       case DRAW_INPUTS:
  1998. /* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
  1999.         fprintf(js_include_file,"\n/* draw static input fields */\
  2000. if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
  2001. var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
  2002. var input = document.createElement(\"input\");\
  2003. input.setAttribute(\"id\",\"canvas_input\"+num);\
  2004. input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
  2005. if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
  2006. input.setAttribute(\"size\",size);\
  2007. input.setAttribute(\"value\",value);\
  2008. input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
  2009. if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
  2010. canvas_div.appendChild(input);\
  2011. if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
  2012. input_cnt++;\
  2013. };\
  2014. function center_input(id,x,y,css_class){\
  2015. var inp = document.getElementById(id);\
  2016. var pos = inp.getBoundingClientRect();\
  2017. var center_x = parseInt(x - 0.5*(pos.width));\
  2018. var center_y = parseInt(y - 0.5*(pos.height));\
  2019. 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;\");}\
  2020. catch(e){console.log('error :'+e);return;};\
  2021. };");
  2022.         break;
  2023.       case DRAW_TEXTAREAS:
  2024.         fprintf(js_include_file,"\n/* draw text area inputfields */\
  2025. var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
  2026. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  2027. var textarea = document.createElement(\"textarea\");\
  2028. textarea.setAttribute(\"id\",\"canvas_input\"+num);\
  2029. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  2030. textarea.setAttribute(\"cols\",cols);\
  2031. textarea.setAttribute(\"rows\",rows);\
  2032. textarea.value = value;\
  2033. if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
  2034. canvas_div.appendChild(textarea);};");
  2035.         break;
  2036.       case DRAW_PIXELS:
  2037.         fprintf(js_include_file,"\n/* draw pixel */\
  2038. var draw_setpixel = function(x,y,color,opacity,pixelsize){\
  2039. var idx = 2000+Math.ceil(1000*(Math.random()));\
  2040. var canvas = create_canvas%d(idx,xsize,ysize);\
  2041. var d = 0.5*pixelsize;\
  2042. var ctx = canvas.getContext(\"2d\");\
  2043. if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
  2044. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  2045. ctx.clearRect(0,0,xsize,ysize);\
  2046. for(var p=0; p<x.length;p++){\
  2047.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  2048. };\
  2049. ctx.fill();ctx.stroke();\
  2050. };",canvas_root_id);
  2051.         break;
  2052.       case DRAW_CLOCK:
  2053.         fprintf(js_include_file,"\n/* command clock */\
  2054. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  2055. var clock_ctx = clock_canvas.getContext(\"2d\");\
  2056. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  2057. clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
  2058. clock_ctx.save();\
  2059. clock_ctx.globalAlpha = clock_bg_opacity;\
  2060. this.type = type || 0;\
  2061. this.interaction = interaction || 0;\
  2062. this.H = H;\
  2063. this.M = M;\
  2064. this.S = S;\
  2065. this.xc = xc || xsize/2;\
  2066. this.yc = yc || ysize/2;\
  2067. this.radius = radius || xsize/4;\
  2068. var font_size = parseInt(0.2*this.radius);\
  2069. this.H_color = h_color || \"black\";\
  2070. this.M_color = m_color || \"black\";\
  2071. this.S_color = s_color || \"black\";\
  2072. this.fg_color = fg_color || \"black\";\
  2073. this.bg_color = bg_color || \"white\";\
  2074. clock_ctx.translate(this.xc,this.yc);\
  2075. clock_ctx.beginPath();\
  2076. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  2077. clock_ctx.fillStyle = this.bg_color;\
  2078. clock_ctx.fill();\
  2079. clock_ctx.closePath();\
  2080. clock_ctx.beginPath();\
  2081. clock_ctx.font = font_size+\"px Arial\";\
  2082. clock_ctx.fillStyle = this.fg_color;\
  2083. clock_ctx.textAlign = \"center\";\
  2084. clock_ctx.textBaseline = 'middle';\
  2085. var angle;var x1,y1,x2,y2;\
  2086. var angle_cos;var angle_sin;\
  2087. clock_ctx.globalAlpha = clock_fg_opacity;\
  2088. switch(type){\
  2089. case 0:clock_ctx.beginPath();\
  2090. for(var p = 1; p <= 12 ; p++){\
  2091.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  2092.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  2093.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2094.  clock_ctx.moveTo(x1,y1);\
  2095.  clock_ctx.lineTo(x2,y2);\
  2096. };\
  2097. for(var p = 1; p <= 60 ; p++){\
  2098.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  2099.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  2100.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2101.  clock_ctx.moveTo(x1,y1);\
  2102.  clock_ctx.lineTo(x2,y2);\
  2103. };\
  2104. clock_ctx.closePath();\
  2105. clock_ctx.stroke();\
  2106. break;\
  2107. case 1:\
  2108. 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;\
  2109. case 2:\
  2110. 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);};\
  2111. clock_ctx.beginPath();\
  2112. for(var p = 1; p <= 12 ; p++){\
  2113.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  2114.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  2115.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2116.  clock_ctx.moveTo(x1,y1);\
  2117.  clock_ctx.lineTo(x2,y2);\
  2118. };\
  2119. for(var p = 1; p <= 60 ; p++){\
  2120.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  2121.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  2122.  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2123.  clock_ctx.moveTo(x1,y1);\
  2124.  clock_ctx.lineTo(x2,y2);\
  2125. };\
  2126. clock_ctx.closePath();\
  2127. clock_ctx.stroke();\
  2128. break;\
  2129. };\
  2130. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  2131. clock_ctx.rotate(angle);\
  2132. clock_ctx.beginPath();\
  2133. clock_ctx.moveTo(-3, -2);\
  2134. clock_ctx.lineTo(-3, 2);\
  2135. clock_ctx.lineTo(this.radius * 0.6, 1);\
  2136. clock_ctx.lineTo(this.radius  * 0.6, -1);\
  2137. clock_ctx.fillStyle = this.H_color;\
  2138. clock_ctx.fill();\
  2139. clock_ctx.rotate(-angle);\
  2140. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  2141. clock_ctx.rotate(angle);\
  2142. clock_ctx.beginPath();\
  2143. clock_ctx.moveTo(-3, -2);\
  2144. clock_ctx.lineTo(-3, 2);\
  2145. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  2146. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  2147. clock_ctx.fillStyle = this.M_color;\
  2148. clock_ctx.fill();\
  2149. clock_ctx.rotate(-angle);\
  2150. angle = (this.S - 15) * 2 * Math.PI / 60;\
  2151. clock_ctx.rotate(angle);\
  2152. clock_ctx.beginPath();\
  2153. clock_ctx.moveTo(0,0);\
  2154. clock_ctx.lineTo(this.radius  * 0.9, 1);\
  2155. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  2156. clock_ctx.strokeStyle = this.S_color;\
  2157. clock_ctx.stroke();\
  2158. clock_ctx.restore();\
  2159. };",canvas_root_id,CLOCK_CANVAS);
  2160.         break;
  2161.       case DRAW_LATTICE:
  2162.         fprintf(js_include_file,"\n/* draw lattice */\
  2163. 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){\
  2164. var obj;\
  2165. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2166.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2167. } else {\
  2168.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2169. };\
  2170. var ctx = obj.getContext(\"2d\");\
  2171. ctx.save();\
  2172. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  2173. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  2174. 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;};\
  2175. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  2176. var radius = line_width;\
  2177. var x = 0;\
  2178. var y = 0;\
  2179. var x_step_px = xsize/(xmax-xmin);\
  2180. var y_step_px = ysize/(ymax-ymin);\
  2181. var xv1 = dx1*x_step_px;\
  2182. var yv1 = dy1*y_step_px;\
  2183. var xv2 = dx2*x_step_px;\
  2184. var yv2 = dy2*y_step_px;\
  2185. for(var p = 0; p < n1 ;p++){\
  2186.  x = p*xv1 + x0;\
  2187.  y = p*yv1 + y0;\
  2188.  for(var c = 0; c < n2 ; c++){\
  2189.   ctx.beginPath();\
  2190.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  2191.   ctx.fill();\
  2192.   ctx.stroke();\
  2193.   ctx.closePath();\
  2194.  };\
  2195. };\
  2196. ctx.restore();\
  2197. return;\
  2198. };",canvas_root_id,canvas_root_id,canvas_root_id);
  2199.         break;
  2200.       case DRAW_XYLOGSCALE:
  2201.         fprintf(js_include_file,"\n/* draw xylogscale */\
  2202. 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){\
  2203. var obj;\
  2204. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2205.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2206. } else {\
  2207.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2208. };\
  2209. var ctx = obj.getContext(\"2d\");\
  2210. ctx.clearRect(0,0,xsize,ysize);\
  2211. ctx.save();\
  2212. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  2213. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2214. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2215. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2216. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2217. if(use_axis_numbering != -1){\
  2218.  ctx.font = font_family;\
  2219.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
  2220.  ymarge = parseInt(1.5*font_size);\
  2221.  ctx.save();\
  2222.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2223.  ctx.rect(0,0,xmarge,ysize);\
  2224.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2225.  ctx.fill();\
  2226.  ctx.restore();\
  2227. }else{xmarge = 0;ymarge = 0;};\
  2228. if( typeof(xaxislabel) !== 'undefined' ){\
  2229.  ctx.save();\
  2230.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2231.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2232.  corr =  ctx.measureText(xaxislabel).width;\
  2233.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2234.  ctx.restore();\
  2235. };\
  2236. if( typeof(yaxislabel) !== 'undefined' ){\
  2237.  ctx.save();\
  2238.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2239.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2240.  corr = ctx.measureText(yaxislabel).width;\
  2241.  ctx.translate(xmarge+font_size,corr+font_size);\
  2242.  ctx.rotate(-0.5*Math.PI);\
  2243.  ctx.fillText(yaxislabel,0,0);\
  2244.  ctx.restore();\
  2245. };\
  2246. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2247. ctx.lineWidth = line_width;\
  2248. for(var p = x_min; p <= x_max ; p++){\
  2249.  num = Math.pow(xlogbase,p);\
  2250.  for(var i = 1 ; i < xlogbase ; i++){\
  2251.   x_e = x2px(i*num);\
  2252.   if( i == 1 ){\
  2253.    ctx.lineWidth = line_width;\
  2254.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2255.    if( use_axis_numbering != -1 && p > x_min){\
  2256.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2257.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2258.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2259.    };\
  2260.   }else{\
  2261.    ctx.lineWidth = 0.2*line_width;\
  2262.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2263.   };\
  2264.   if( x_e >= xmarge ){\
  2265.    ctx.beginPath();\
  2266.    ctx.moveTo(x_e,0);\
  2267.    ctx.lineTo(x_e,ysize - ymarge);\
  2268.    ctx.stroke();\
  2269.    ctx.closePath();\
  2270.   };\
  2271.  };\
  2272. };\
  2273. for(var p = y_min; p <= y_max ; p++){\
  2274.  num = Math.pow(ylogbase,p);\
  2275.  for(var i = 1 ; i < ylogbase ; i++){\
  2276.   y_e = y2px(i*num);\
  2277.   if( i == 1 ){\
  2278.    ctx.lineWidth = line_width;\
  2279.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2280.    if( use_axis_numbering != -1 && p > y_min){\
  2281.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2282.    };\
  2283.   }else{\
  2284.    ctx.lineWidth = 0.2*line_width;\
  2285.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2286.   };\
  2287.   ctx.beginPath();\
  2288.   ctx.moveTo(xmarge,y_e);\
  2289.   ctx.lineTo(xsize,y_e);\
  2290.   ctx.stroke();\
  2291.   ctx.closePath();\
  2292.  };\
  2293. };\
  2294. ctx.restore();\
  2295. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2296.         break;
  2297.       case DRAW_XLOGSCALE:
  2298.         fprintf(js_include_file,"\n/* draw xlogscale */\
  2299. 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){\
  2300. var obj;\
  2301. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2302.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2303. } else {\
  2304.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2305. };\
  2306. var ctx = obj.getContext(\"2d\");\
  2307. ctx.clearRect(0,0,xsize,ysize);\
  2308. ctx.save();\
  2309. ctx.lineWidth = line_width;\
  2310. var prec = Math.log(precision)/Math.log(10);\
  2311. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2312. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2313. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  2314. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  2315. if(use_axis_numbering != -1){\
  2316.  ctx.font = font_family;\
  2317.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
  2318.  ymarge = parseInt(1.5*font_size);\
  2319.  ctx.save();\
  2320.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2321.  ctx.rect(0,0,xmarge,ysize);\
  2322.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2323.  ctx.fill();\
  2324.  ctx.restore();\
  2325. }else{xmarge = 0;ymarge = 0;};\
  2326. if( typeof(xaxislabel) !== 'undefined' ){\
  2327.  ctx.save();\
  2328.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2329.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2330.  corr =  ctx.measureText(xaxislabel).width;\
  2331.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2332.  ctx.restore();\
  2333. };\
  2334. if( typeof(yaxislabel) !== 'undefined' ){\
  2335.  ctx.save();\
  2336.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2337.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2338.  corr = ctx.measureText(yaxislabel).width;\
  2339.  ctx.translate(xmarge+font_size,corr+font_size);\
  2340.  ctx.rotate(-0.5*Math.PI);\
  2341.  ctx.fillText(yaxislabel,0,0);\
  2342.  ctx.restore();\
  2343. };\
  2344. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2345. ctx.lineWidth = line_width;\
  2346. for(var p = x_min; p <= x_max ; p++){\
  2347.  num = Math.pow(xlogbase,p);\
  2348.  for(var i = 1 ; i < xlogbase ; i++){\
  2349.   x_e = x2px(i*num);\
  2350.   if( i == 1 ){\
  2351.     ctx.lineWidth = line_width;\
  2352.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2353.    if( use_axis_numbering != -1 && p > x_min ){\
  2354.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2355.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2356.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2357.    };\
  2358.   }else{\
  2359.    ctx.lineWidth = 0.2*line_width;\
  2360.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2361.   };\
  2362.   if( x_e >= xmarge ){\
  2363.    ctx.beginPath();\
  2364.    ctx.moveTo(x_e,0);\
  2365.    ctx.lineTo(x_e,ysize - ymarge);\
  2366.    ctx.stroke();\
  2367.    ctx.closePath();\
  2368.   };\
  2369.  };\
  2370. };\
  2371. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  2372. var minor_step = stepy / yminor;\
  2373. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  2374.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2375.  ctx.lineWidth = line_width;\
  2376.  ctx.beginPath();\
  2377.  ctx.moveTo(xmarge,y);\
  2378.  ctx.lineTo(xsize,y);\
  2379.  ctx.stroke();\
  2380.  ctx.closePath();\
  2381.  if( use_axis_numbering != -1){\
  2382.   ytxt = (px2y(y)).toFixed(prec);\
  2383.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  2384.  };\
  2385.  for(var dy = 1 ; dy < yminor ; dy++){\
  2386.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2387.   ctx.lineWidth = 0.2*line_width;\
  2388.   ctx.beginPath();\
  2389.   ctx.moveTo(xmarge,y+dy*minor_step);\
  2390.   ctx.lineTo(xsize,y+dy*minor_step);\
  2391.   ctx.stroke();\
  2392.   ctx.closePath();\
  2393.  };\
  2394. };\
  2395. ctx.restore();\
  2396. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2397.         break;
  2398.       case DRAW_YLOGSCALE:
  2399.         fprintf(js_include_file,"\n/* draw ylogscale */\
  2400. 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){\
  2401. var obj;\
  2402. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2403.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2404. } else {\
  2405.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2406. };\
  2407. var ctx = obj.getContext(\"2d\");\
  2408. ctx.clearRect(0,0,xsize,ysize);\
  2409. ctx.save();\
  2410. ctx.lineWidth = line_width;\
  2411. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2412. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2413. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
  2414. if(use_axis_numbering != -1){\
  2415.  ctx.font = font_family;\
  2416.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
  2417.  ymarge = 2*font_size;\
  2418.  ctx.save();\
  2419.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2420.  ctx.rect(0,0,xmarge,ysize);\
  2421.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2422.  ctx.fill();\
  2423.  ctx.restore();\
  2424. }else{xmarge = 0;ymarge = 0;};\
  2425. if( typeof(xaxislabel) !== 'undefined' ){\
  2426.  ctx.save();\
  2427.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2428.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2429.  corr =  ctx.measureText(xaxislabel).width;\
  2430.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2431.  ctx.restore();\
  2432. };\
  2433. if( typeof(yaxislabel) !== 'undefined' ){\
  2434.  ctx.save();\
  2435.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2436.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2437.  corr = ctx.measureText(yaxislabel).width;\
  2438.  ctx.translate(xmarge+font_size,corr+font_size);\
  2439.  ctx.rotate(-0.5*Math.PI);\
  2440.  ctx.fillText(yaxislabel,0,0);\
  2441.  ctx.restore();\
  2442. };\
  2443. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2444. ctx.lineWidth = line_width;\
  2445. for(var p = y_min; p <= y_max ; p++){\
  2446.  num = Math.pow(ylogbase,p);\
  2447.  for(var i = 1 ; i < ylogbase ; i++){\
  2448.   y_e = y2px(i*num);\
  2449.   if( i == 1 ){\
  2450.    ctx.lineWidth = line_width;\
  2451.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2452.    if( use_axis_numbering != -1 && p > y_min){\
  2453.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2454.    };\
  2455.   }else{\
  2456.    ctx.lineWidth = 0.2*line_width;\
  2457.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2458.   };\
  2459.   ctx.beginPath();\
  2460.   ctx.moveTo(xmarge,y_e);\
  2461.   ctx.lineTo(xsize,y_e);\
  2462.   ctx.stroke();\
  2463.   ctx.closePath();\
  2464.  };\
  2465. };\
  2466. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  2467. var minor_step = stepx / xminor;\
  2468. var prec = Math.log(precision)/Math.log(10);\
  2469. var xtxt;var corr;var flip = 0;\
  2470. for(var x = stepx ; x < xsize ; x = x + stepx){\
  2471.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2472.  ctx.lineWidth = line_width;\
  2473.  ctx.beginPath();\
  2474.  ctx.moveTo(x,ysize-ymarge);\
  2475.  ctx.lineTo(x,0);\
  2476.  ctx.stroke();\
  2477.  ctx.closePath();\
  2478.  if( use_axis_numbering != -1){\
  2479.   xtxt = (px2x(x)).toFixed(prec);\
  2480.   corr = 0.5*(ctx.measureText(xtxt).width);\
  2481.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  2482.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  2483.  };\
  2484.  for(var dx = 1 ; dx < xminor ; dx++){\
  2485.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2486.   ctx.lineWidth = 0.2*line_width;\
  2487.   ctx.beginPath();\
  2488.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  2489.   ctx.lineTo(x+dx*minor_step,0);\
  2490.   ctx.stroke();\
  2491.   ctx.closePath();\
  2492.  };\
  2493. };\
  2494. ctx.restore();\
  2495. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2496.         break;
  2497.       case ADD_USER_INPUTS:
  2498.         fprintf(js_include_file,"\n/* add_input_xy */\
  2499. function add_input_xy(){\
  2500. if( wims_status == \"done\" ){return;};\
  2501. var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
  2502. var input_xy_div = document.createElement('div');\
  2503. input_xy_div.id = \"input_xy_div\";\
  2504. tooltip_div.appendChild(input_xy_div);",canvas_root_id);
  2505.  
  2506.       if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
  2507.         type=1;
  2508.         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);
  2509.       }else{
  2510.         if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
  2511.           type=2;
  2512.           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);
  2513.         }else{
  2514.             type=3;
  2515.             if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
  2516.               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);
  2517.             }else{
  2518.               type=4;
  2519.               if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
  2520.                 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);
  2521.               }else{
  2522.                 type=5;
  2523.                 if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
  2524.                   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);
  2525.                 }else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
  2526.               }
  2527.             }
  2528.           }
  2529.         }
  2530.       }
  2531.       fprintf(js_include_file,"\
  2532. var update_button = document.getElementById(\"update_button\");\
  2533. var delete_button = document.getElementById(\"delete_button\");\
  2534. update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
  2535. delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
  2536. };add_input_xy();");
  2537.  
  2538.       switch(type){
  2539.         case 1:
  2540.           fprintf(js_include_file,"\n/* add_input_xy */\
  2541. function update_me(){\
  2542. var x = safe_eval(document.getElementById('userinput_x').value);\
  2543. var y = safe_eval(document.getElementById('userinput_y').value);\
  2544. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2545. return;\
  2546. };");break;
  2547.         case 2:
  2548.           fprintf(js_include_file,"\n/* add_input_xy */\
  2549. function update_me(){\
  2550. var x = safe_eval(document.getElementById('userinput_x').value);\
  2551. var y = safe_eval(document.getElementById('userinput_y').value);\
  2552. var r = safe_eval(document.getElementById('userinput_r').value);\
  2553. r = scale_x_radius(r);\
  2554. userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2555. return;\
  2556. };");break;
  2557.         case 3:
  2558.           fprintf(js_include_file,"\n/* add_input_xy */\
  2559. function update_me(){\
  2560. var x,y;\
  2561. for(var p=1; p<3;p++){\
  2562.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2563.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2564.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2565. };\
  2566. return;\
  2567. };");
  2568.           break;
  2569.         case 4:
  2570.           fprintf(js_include_file,"\n/* add_input_xy */\
  2571. function update_me(){\
  2572. var x,y;\
  2573. for(var p=1; p<4;p++){\
  2574.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2575.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2576.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2577. };\
  2578. return;\
  2579. };");
  2580.           break;
  2581.         case 5:
  2582.  /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
  2583.           fprintf(js_include_file,"\n/* add_input_xy */\
  2584. function update_me(){\
  2585. var x = safe_eval(document.getElementById('userinput_x').value);\
  2586. var y = safe_eval(document.getElementById('userinput_y').value);\
  2587. var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
  2588. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
  2589. return;\
  2590. };");
  2591.           break;
  2592.         default: canvas_error("hmmm, I've no idea...");break;
  2593.       }
  2594.       break;
  2595.       default:break;
  2596.       }
  2597.     }
  2598.   }
  2599.   return;
  2600. }
  2601.