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