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