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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.  }\
  76.  else\
  77.  {\
  78.   valid = false;\
  79.  }\
  80. }\
  81. );\
  82. if( !valid ){\
  83.  alert(\"hmmm \"+exp+\" ?\"); exp = null;\
  84. }\
  85. else\
  86. {\
  87.  try{ exp = eval(exp); } catch(e){alert(\"Invalid arithmetic expression\"); exp = null;};\
  88. };\
  89. return exp;\
  90. };");
  91. break;
  92.  
  93. case JS_RAWMATH:
  94. fprintf(js_include_file,"\n/* add_rawmath() */\
  95. function rawmath(i){\
  96. i=i.toLowerCase();\
  97. i=i.replace(/\\ /g,\"\");i=i.replace(/\\*\\*/g,\"^\");\
  98. if(i.indexOf(\"e+\")!=-1){i=i.replace(\"e+\",\"*10^\");};\
  99. if(i.indexOf(\"e-\")!=-1){i=i.replace(\"e-\",\"*10^-\");};\
  100. i=i.replace(/\\*\\*/g,\"*\");\
  101. if(i.charAt(0)==\"*\"){i=i.substring(1,i.length);};\
  102. var fun=[\"asin\",\"acos\",\"atan\",\"sin\",\"cos\",\"tan\",\"log\",\"ln\",\"pi\",\"e\",\"x\",\"y\"];\
  103. var cons=[\"pi\",\"e\",\"0\",\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\",\"9\"];\
  104. var cntl = 0;var cntr = 0;\
  105. var len = i.length;\
  106. for( var p = 0;p < len; p++){\
  107.  if(i.charAt(p) == '('){cntl++;}\
  108.  if(i.charAt(p) == ')'){cntr++;}\
  109. };\
  110. if(cntl != cntr){alert(\"unmatched parenthesis !!\");return null;};\
  111. for(var p = 0; p < 12 ; p++){\
  112.  for(var d = 0; d < 12 ; d++){\
  113.   while(i.indexOf(cons[d]+\"\"+fun[p])!=-1){\
  114.    i = i.replace(cons[d]+\"\"+fun[p],cons[d]+\"*\"+fun[p]);\
  115.   };\
  116.   while(i.indexOf(fun[p]+\"\"+cons[d])!=-1){\
  117.    i = i.replace(fun[p]+\"\"+cons[d],fun[p]+\"*\"+cons[d]);\
  118.   };\
  119.  };\
  120. };\
  121. if(i.indexOf(\"(\")!=-1){\
  122.  for(var p = 0;p < 12; p++){\
  123.   if(i.indexOf(cons[p]+\"(\")!=-1){\
  124.    i = i.replace(cons[p]+\"(\",cons[p]+\"*(\");\
  125.   };\
  126.   if(i.indexOf(\")\"+cons[p])!=-1){\
  127.    i = i.replace(\")\"+cons[p],\")*\"+cons[p]);\
  128.   };\
  129.  };\
  130.  i = i.replace(/\\)\\(/g,\")*(\");\
  131. };\
  132. return i;\
  133. };");
  134. break;
  135.  
  136. case JS_PLOT:
  137. fprintf(js_include_file,"\n/* jsplot() */\
  138. var x_anim_points;var y_anim_points;var animation_steps;var animation_funs;\
  139. function jsplot(canvas_type,funs,linewidth,color,opacity,use_dashed,dashtype0,dashtype1,trange,plotsteps,use_parametric,use_animate,origin){\
  140. var obj = create_canvas%d(canvas_type,xsize,ysize);\
  141. var ctx = obj.getContext(\"2d\");\
  142. ctx.clearRect(0,0,xsize,ysize);\
  143. animation_funs = funs.length;\
  144. function eval_jsmath(x,func){return parseFloat(eval(func));};\
  145. if(origin == 0 ){\
  146.  if( typeof(multilinewidth) !== 'undefined' && multilinewidth != null ){ linewidth = multilinewidth;};\
  147.  if( typeof(multistrokecolors) !== 'undefined' && multistrokecolors != null ){ color = multistrokecolors;};\
  148.  if( typeof(multistrokeopacity) !== 'undefined' && multistrokeopacity != null ){ opacity = multistrokeopacity;};\
  149.  if( typeof(multidash) !== 'undefined' && multidash != null ){use_dashed = multidash;};\
  150. };\
  151. x_anim_points = [];y_anim_points = [];var idx=0;\
  152. if( use_parametric == 1){\
  153.  for(var i = 0 ; i < animation_funs; i=i+2){\
  154.   funs[i] = funs[i].replace(/t/g,'x');\
  155.   funs[i+1] = funs[i+1].replace(/t/g,'x');\
  156.   funs[i] = funs[i].replace(/xan/g,'tan');\
  157.   funs[i+1] = funs[i+1].replace(/xan/g,'tan');\
  158.   var fun_x = to_js_math(funs[i]);\
  159.   var fun_y = to_js_math(funs[i+1]);\
  160.   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;};\
  161.   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;};\
  162.   ctx.lineWidth = linewidth[i] || linewidth;\
  163.   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
  164.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  165.   var y1;var x1;var y2;var x2;\
  166.   ctx.beginPath();\
  167.   var tmin = trange[0];var tmax = trange[1];\
  168.   var step = parseFloat((tmax - tmin)/plotsteps);\
  169.   for(var p = tmin ; p < tmax; p = p+step ){\
  170.    x1 = x2px(parseFloat(eval_jsmath(p,fun_x)));\
  171.    y1 = y2px(parseFloat(eval_jsmath(p,fun_y)));\
  172.    x2 = x2px(parseFloat(eval_jsmath(p+step,fun_x)));\
  173.    y2 = y2px(parseFloat(eval_jsmath(p+step,fun_y)));\
  174.    x_anim_points[idx] = x1;y_anim_points[idx] = y1;idx++;\
  175.     ctx.moveTo(x1,y1);\
  176.     ctx.lineTo(x2,y2);\
  177.     ctx.moveTo(x1,y1);\
  178.     ctx.lineTo(x2,y2);\
  179.   };\
  180.   ctx.closePath();\
  181.   ctx.stroke();\
  182.  };\
  183.  animation_funs = 0.5*animation_funs;\
  184. }else{\
  185.  for(var i = 0 ; i < animation_funs; i++){\
  186.   var fun = to_js_math(funs[i]);\
  187.   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;};\
  188.   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;};\
  189.   if(use_dashed[i] == \"1\" || use_dashed == \"1\"){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash =[dashtype0,dashtype1];}};\
  190.   ctx.lineWidth = linewidth[i] || linewidth;\
  191.   ctx.strokeStyle='rgba('+color[i] || color +','+opacity[i] || opacity +')';\
  192.   var y1;var x1;var y2;var x2;\
  193.   ctx.beginPath();\
  194.   for(var p = 0 ; p<xsize;p++){\
  195.    x1 = px2x(p);\
  196.    y1 = y2px(parseFloat(eval_jsmath(x1,fun)));\
  197.    x2 = px2x(p+1);\
  198.    y2 = y2px(parseFloat(eval_jsmath(x2,fun)));\
  199.    x_anim_points[idx] = p;y_anim_points[idx] = y1;idx++;\
  200.    if(Math.abs(y2-y1) < ysize ){\
  201.     ctx.moveTo(p,y1);\
  202.     ctx.lineTo(p+1,y2);\
  203.    };\
  204.   };\
  205.   ctx.closePath();\
  206.   ctx.stroke();\
  207.  };\
  208. };\
  209. if( use_animate == 1 ){animation_steps = idx;animate_this();}\
  210. };",canvas_root_id);
  211. break;
  212.  
  213. case JS_MATH:
  214. fprintf(js_include_file,"\n/* to_js_math() */\
  215. function to_js_math(math_fun){\
  216. if(math_fun == null){return;};\
  217. var infun=[\"sqrt\",\"^\",\"asin\",\"acos\",\"atan\",\"log\",\"pi\",\"abs\",\"sin\",\"cos\",\"tan\",\"e\"];\
  218. 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)\"];\
  219. var len = infun.length;var in_fun;var In_Fun;var out_fun;var w_cnt;\
  220. for(var p=0 ; p < len ; p++){\
  221.  in_fun = infun[p];In_Fun = in_fun.toUpperCase();out_fun = outfun[p];w_cnt=0;\
  222.  if(math_fun.indexOf(in_fun) != -1){\
  223.   if(in_fun == \"^\"){\
  224.    var tab = [];var small_trick = \"___small_trick___\";\
  225.    while (math_fun.indexOf(\"(\") != -1){\
  226.     math_fun = math_fun.replace(/(\\([^\\(\\)]*\\))/g, function(m, t){tab.push(t);return (small_trick + (tab.length - 1));});\
  227.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  228.    };\
  229.    tab.push(math_fun);w_cnt = 0;math_fun = small_trick + (tab.length - 1);\
  230.    while (math_fun.indexOf(small_trick) != -1){\
  231.     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)\");});\
  232.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  233.    };\
  234.   }\
  235.   else\
  236.   {\
  237.    while( math_fun.indexOf(in_fun) != -1 ){\
  238.     math_fun = math_fun.replace(in_fun,out_fun);\
  239.     math_fun = math_fun.replace(in_fun,In_Fun);\
  240.     w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  241.    };\
  242.   };\
  243.  };\
  244. };\
  245. for(var p=0 ; p < len ; p++){\
  246.  in_fun = infun[p];In_Fun = in_fun.toUpperCase();w_cnt = 0;\
  247.  if(math_fun.indexOf(In_Fun) != -1 ){\
  248.   while(math_fun.indexOf(In_Fun) != -1){\
  249.    math_fun = math_fun.replace(In_Fun,in_fun);\
  250.    w_cnt++;if(w_cnt>1000){alert(\"hmmm \"+math_fun+\" ?\\nUse command plot for more complex math functions...\");return null;};\
  251.   };\
  252.  };\
  253. };\
  254. return math_fun;\
  255. };");
  256. break;
  257.  
  258. case INTERACTIVE:
  259.  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};};");
  260. break;
  261. case USERDRAW_AND_ZOOM:
  262. fprintf(js_include_file,"\n/* add zoom support for multidraw */\
  263. function recalculate_userdraw(xmin0,ymin0,xmax0,ymax0){\
  264. function x_zoom(px){\
  265.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  266.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  267. };\
  268. function y_zoom(py){\
  269.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  270.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  271. };\
  272. function r_zoom(r){\
  273.  return r*(xmin0/xmin);\
  274. };\
  275. var len = userdraw_x.length;\
  276. var x;var y;var r;\
  277. for(var p=0;p<len;p++){\
  278.  x = userdraw_x[p];\
  279.  y = userdraw_y[p];\
  280.  userdraw_x[p] = x_zoom(x);\
  281.  userdraw_y[p] = y_zoom(y);\
  282.  if( userdraw_radius[p] ){\
  283.   r = userdraw_radius[p];\
  284.   userdraw_radius[p] = r_zoom(r);\
  285.  };\
  286. };\
  287. };");
  288. break;
  289.  
  290. case DRAG_AND_ZOOM:
  291. fprintf(js_include_file,"\n/* add zoom support for drag&drop */\
  292. function recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0){\
  293. function x_zoom(px){\
  294.  var x = parseFloat(px*(xmax0 - xmin0)/xsize + xmin0);\
  295.  return parseFloat(x*xsize/(xmax - xmin) - xsize*xmin/(xmax - xmin));\
  296. };\
  297. function y_zoom(py){\
  298.  var y = parseFloat(ymax0 - py*(ymax0 - ymin0)/ysize);\
  299.  return parseFloat(-1*y*ysize/(ymax - ymin) + ymax*ysize/(ymax - ymin));\
  300. };\
  301. var len = dragstuff.shapes.length;\
  302. var shape;var L;var x;var y;\
  303. for(var p=0;p<len;p++){\
  304.  shape = dragstuff.shapes[p];\
  305.  L = shape.x.length;\
  306.  for(var i=0;i<L;i++){\
  307.   x = shape.x[i];\
  308.   y = shape.y[i];\
  309.   dragstuff.shapes[p].x[i] = x_zoom(x);\
  310.   dragstuff.shapes[p].y[i] = y_zoom(y);\
  311.  };\
  312. };\
  313. };");
  314. break;
  315.  
  316. case JSPLOT_AND_ZOOM:
  317. fprintf(js_include_file,"\n/* add zoom support for jscurves */\
  318. function redraw_jsplot(){for(var p=0; p <= all_jsplots;p++){try{var fun = eval('js_plot'+p);fun();}catch(e){};};};");
  319. break;
  320.  
  321. case JS_ZOOM:
  322. fprintf(js_include_file,"\n/* add zoom support */\
  323. var x_min_start = xmin;var x_max_start = xmax;var y_min_start = ymin;var y_max_start = ymax;\
  324. var zoomcanvas = create_canvas%d(%d,xsize,ysize);\
  325. function redraw_canvas%d(key){\
  326. var xmin0 = xmin;var xmax0 = xmax;var ymin0 = ymin;var ymax0 = ymax;\
  327. switch(key){\
  328.  case 0: xmin++;ymin++;xmax--;ymax--;break;\
  329.  case 1: xmin--;ymin--;xmax++;ymax++;break;\
  330.  case 2: xmin--;xmax--;break;\
  331.  case 3: xmin++;xmax++;break;\
  332.  case 4: ymin--;ymax--;break;\
  333.  case 5: ymax++;ymin++;break;\
  334.  case 6: xmin = x_min_start;xmax=x_max_start;ymin=y_min_start;ymax=y_max_start;break;\
  335.  default: break;\
  336. };\
  337. if(xmin >= xmax){xmin = x_min_start;xmax = x_max_start;};\
  338. if(ymin >= ymax){ymax = y_max_start;ymin = y_min_start;};\
  339. if( typeof(recalculate_multidraw) === 'function'){recalculate_multidraw(xmin0,xmax0,ymin0,ymax0);redraw_userdraw();}\
  340. if( typeof(recalculate_userdraw) === 'function'){recalculate_userdraw(xmin0,ymin0,xmax0,ymax0);redraw_userdraw();}\
  341. if( typeof(redraw_grid) === 'function'){redraw_grid();};\
  342. if( typeof(redraw_jsplot) === 'function'){redraw_jsplot();};\
  343. if( typeof(recalculate_dragdrop) === 'function'){recalculate_dragdrop(xmin0,ymin0,xmax0,ymax0);dragstuff.valid = false;dragstuff.draw();};\
  344. return;\
  345. };\
  346. canvas_div.addEventListener(\"mousedown\",check_zoom_or_pan,false);\
  347. canvas_div.addEventListener(\"wheel\",wheel_zoom,false);\
  348. canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();check_zoom_or_pan(e.changedTouches[0]);},false);\
  349. function wheel_zoom(evt){\
  350. evt.preventDefault();\
  351. var key = 1;\
  352. if(evt.deltaY > 0 ){key = 0};\
  353. redraw_canvas%d(key);\
  354. return;\
  355. };\
  356. function check_zoom_or_pan(evt){\
  357. var mouse = getMouse(evt,zoomcanvas);\
  358. var my = mouse.y;\
  359. if(my < ysize - 30){ return; };\
  360. var mx = mouse.x;\
  361. var key = -1;\
  362. for(var p = 15 ; p < 106 ; p = p+15){\
  363.  key++;\
  364.  if(mx > xsize - p){\
  365.   redraw_canvas%d(key);\
  366.   return;\
  367.  };\
  368. };\
  369. return;\
  370. };",canvas_root_id,ZOOM_CANVAS,canvas_root_id,canvas_root_id,canvas_root_id);
  371. break;
  372.  
  373. case DRAW_FILL_PATTERN:
  374. fprintf(js_include_file,"\n /* add fill pattern */ \
  375. 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;\
  376. switch(type){\
  377.  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;\
  378.  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;\
  379.  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;\
  380.  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;\
  381.  case 6: alert('wait for image '+(image_cnt+1)+'...');pat = image_patterns[image_cnt];image_cnt++;break;\
  382.  default: break;\
  383. };\
  384. document.body.style.cursor = 'default';return pat;\
  385. };",canvas_root_id);
  386. break;
  387.  
  388. case JS_TRANSFORM_MOUSE:
  389. /* identify mouse coordinates on transformed objects using command affine */
  390. fprintf(js_include_file,"\n/* translate mouse */\
  391. function transform_mouse(mx,my,obj){\
  392. if( typeof(obj.affine_matrix) === 'undefined' ){console.log('translate_mouse() affine_matrix undefined');{x:mx,y:my};};\
  393. var m = obj.affine_matrix;\
  394. var d = 1/(m[0]*m[3]-m[1]*m[2]);\
  395. 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]) ];\
  396. return { x:mx*im[0]+my*im[2]+im[4], y:mx*im[1]+my*im[3]+im[5] };};");
  397. break;
  398.  
  399. case JS_ROTATE_MOUSE:
  400. /*
  401. identify mouse coordinates on rotated STRING (no 14) objects used for command rotate :
  402. faster than transform matrix
  403. */
  404. fprintf(js_include_file,"\n/* rotate mouse */\
  405. function rotate_mouse(mx,my,obj){\
  406. if( typeof(obj.angle) === 'undefined' ){console.log('rotate_mouse() angle undefined');return {x:mx,y:my};};\
  407. var cos = Math.cos(obj.angle);\
  408. var sin = Math.sin(obj.angle);\
  409. var xc = obj.rotation_center[0];\
  410. var yc = obj.rotation_center[1];\
  411. var x_r = parseInt((cos * (mx - xc)) + (sin * (my - yc)) + xc);\
  412. var y_r = parseInt((cos * (my - yc)) - (sin * (mx - xc)) + yc);\
  413. return {x:x_r,y:y_r};};");
  414. break;
  415.  
  416. case JS_FIND_ANGLE:
  417.  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);};");
  418. break;
  419.  
  420. case DRAG_EXTERNAL_IMAGE:
  421. /*
  422. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  423. reply is object{} and identical to reply from dragstuff library for drag&drop&click
  424. reply[object_cnt] = {type:onclick,x:x0,y:y0,r:radius,angle:angle,clicked:0|1};
  425.  
  426.  
  427.    img[6]= parseInt(img[6] - img[16]);\
  428.    img[7]= parseInt(img[7] - img[17]);\
  429.    else{\
  430.     img[6]= parseInt(img[6] + img[16]);\
  431.     img[7]= parseInt(img[7] + img[17]);\
  432.   };\
  433.  
  434. */
  435. fprintf(js_include_file,"\n/* drag external images */\
  436. var external_ctx = external_canvas.getContext(\"2d\");\
  437. var external_canvas_rect = external_canvas.getBoundingClientRect();\
  438. canvas_div.addEventListener(\"mousedown\",setxy,false);\
  439. canvas_div.addEventListener(\"mouseup\",dragstop,false);\
  440. canvas_div.addEventListener(\"mousemove\",dragxy,false);\
  441. canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();setxy(e.changedTouches[0]);},false);\
  442. canvas_div.addEventListener(\"touchend\"  ,function(e){ e.preventDefault();dragstop(e.changedTouches[0]);},false);\
  443. canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();dragxy(e.changedTouches[0]);},false);\
  444. var selected_image = null;\
  445. if( typeof(ext_drag_images) !== 'object' ){var ext_drag_images = new Array();};\
  446. if( typeof(ext_image_cnt) == 'undefined'){var ext_image_cnt = 0;};\
  447. function drag_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,onclick,object_cnt,use_offset,use_snap,resize){\
  448. var image = new Image();\
  449. image.src = URL;\
  450. slidergroup[object_cnt] = null;\
  451. image.onload = function(){\
  452.  if( sx < 1 ){ sx = 0; };\
  453.  if( sy < 1 ){ sy = 0; };\
  454.  if( swidth < 1 ){swidth = image.width;};\
  455.  if( sheight < 1 ){sheight = image.height;};\
  456.  if( width < 1 ){width = image.width;};\
  457.  if( height < 1 ){height = image.height;};\
  458.  if( resize == 1 ){\
  459.   if( swidth > image.width ){ swidth = image.width; };\
  460.   if( sheight > image.height){ sheight = image.height;};\
  461.   if( width > image.width ){ width = image.width; };\
  462.   if( height > image.height){ height = image.height;};\
  463.  };\
  464.  var img = new Array(18);\
  465.  img[0] = onclick;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
  466.  img[8] = width;img[9] = height;img[10] = object_cnt;img[11] = use_snap;\
  467.  img[6] = x0;img[7] = y0;\
  468.  img[12] = ext_image_cnt;\
  469.  img[13] = img[6];img[14] = img[7];img[15] = 0;img[16] = 0;img[17] = 0;\
  470.  if(use_offset == 4 ){\
  471.   img[16] = 0.5*img[8];\
  472.   img[17] = 0.5*img[9];\
  473.   img[6]= parseInt(img[6] - img[16]);\
  474.   img[7]= parseInt(img[7] - img[17]);\
  475.  };\
  476.  external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  477.  dragdrop_reply[img[10]] = {object_cnt:object_cnt,type:img[0],x:x0,y:y0,r:0,angle:0,clicked:img[15]};\
  478.  ext_drag_images[ext_image_cnt] = img;\
  479.  ext_image_cnt++;\
  480. };\
  481. };\
  482. function dragstop(evt){\
  483. if(selected_image != null){\
  484.  var s_img = ext_drag_images[selected_image];\
  485.  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]};\
  486.  console.log(dragdrop_reply[s_img[12]]);\
  487. };\
  488. selected_image = null;return;\
  489. };\
  490. function dragxy(evt){\
  491. if( selected_image != null ){\
  492.  var s_img = ext_drag_images[selected_image];\
  493.  var mouse = getMouse(evt,external_canvas);\
  494.  var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
  495.  xy[0] = parseInt(xy[0] - 0.5*s_img[8]);\
  496.  xy[1] = parseInt(xy[1] - 0.5*s_img[9]);\
  497.  s_img[6] = xy[0];s_img[7] = xy[1];\
  498.  ext_drag_images[selected_image] = s_img;\
  499.  external_ctx.clearRect(0,0,xsize,ysize);\
  500.  for(var i = 0; i < ext_image_cnt ; i++){\
  501.   var img = ext_drag_images[i];\
  502.   external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
  503.  };\
  504. };\
  505. };\
  506. function setxy(evt){\
  507. if( ! selected_image ){\
  508.  console.log(selected_image);\
  509.  var mouse = getMouse(evt,external_canvas);\
  510.  var xm = mouse.x;\
  511.  var ym = mouse.y;\
  512.  var img;var xmarge;var ymarge;\
  513.  for(var p = 0 ; p < ext_image_cnt ; p++){\
  514.   if( ext_drag_images[p] ){\
  515.    img = ext_drag_images[p];\
  516.    if( img[0] != 0 ){\
  517.     xmarge = 0.5*img[8];ymarge = 0.5*img[9];\
  518.     if( xm > img[6] - xmarge && xm < img[6] + img[8]){\
  519.      if( ym > img[7] - ymarge && ym < img[7] + img[9]){\
  520.       if( img[0] == 1){\
  521.        if( dragdrop_reply[img[10]].clicked == 1 ){\
  522.         dragdrop_reply[img[10]].clicked = 0;external_ctx.strokeStyle = '#ffffff';\
  523.        }\
  524.        else\
  525.        {\
  526.         dragdrop_reply[img[10]].clicked = 1;external_ctx.strokeStyle = '#00ff00';\
  527.        };\
  528.        external_ctx.lineWidth = 2;\
  529.        external_ctx.beginPath();\
  530.        external_ctx.rect(img[6]-2,img[7]-2,img[8]+2,img[9]+2);\
  531.        external_ctx.closePath();\
  532.        external_ctx.stroke();\
  533.        return;\
  534.       }\
  535.       else\
  536.       {\
  537.        img[6] = xm;\
  538.        img[7] = ym;\
  539.        selected_image = p;\
  540.        dragxy(evt);\
  541.        ext_drag_images[p] = img;\
  542.       };\
  543.      };\
  544.     };\
  545.    };\
  546.   };\
  547.  };\
  548. }\
  549. else\
  550. {\
  551.  selected_image = null;\
  552. };\
  553. };");
  554. break;
  555.  
  556. case DRAW_EXTERNAL_IMAGE:
  557. /*
  558. the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
  559. only drag_xy !
  560. snaptogrid | xsnaptogrid | ysnaptogrid works
  561. 14/5/2019
  562. on heavy styled wims (unice.fr etc problems with mouse?
  563. now uniform method of retreiving mouse coordinates getMouse()
  564. */
  565. fprintf(js_include_file,"\n/* draw external images */\
  566. function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,use_offset,resize){\
  567. var external_ctx = image_copy_canvas.getContext(\"2d\");\n\
  568. var image = new Image();\
  569. image.src = URL;\
  570. image.onload = function(){\
  571.  if( sx < 1 ){ sx = 0; };\
  572.  if( sy < 1 ){ sy = 0; };\
  573.  if( swidth < 1 ){swidth = image.width;};\
  574.  if( sheight < 1 ){sheight = image.height;};\
  575.  if( width < 1 ){width = image.width;};\
  576.  if( height < 1 ){height = image.height;};\
  577.  if( resize == 1 ){\
  578.   if( swidth > image.width ){ swidth = image.width; };\
  579.   if( sheight > image.height){ sheight = image.height;};\
  580.   if( width > image.width ){ width = image.width; };\
  581.   if( height > image.height){ height = image.height;};\
  582.  };\
  583.  var img = new Array(9);\
  584.  img[0] = image;img[1] = sx;img[2] = sy;img[3] = swidth;img[4] = sheight;img[5] = x0;img[6] = y0;\
  585.  if(use_offset == 4 ){img[5] = parseInt(img[5] - 0.5*width);img[6] = parseInt(img[6] - 0.5*height);};\
  586.  img[7] = width;img[8] = height;\
  587.  external_ctx.drawImage(img[0],img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8]);\
  588. };\
  589. };");
  590. break;
  591.  
  592. case DRAW_BEZIER:
  593. fprintf(js_include_file,"\n/* draw bezier curve */\
  594. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  595. 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){\
  596. var obj;\
  597. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  598.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  599. }\
  600. else\
  601. {\
  602.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  603. };\
  604. var ctx = obj.getContext(\"2d\");\
  605. ctx.save();\
  606. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  607. ctx.lineWidth = linewidth;\
  608. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
  609. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  610. ctx.beginPath();\
  611. ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
  612. ctx.bezierCurveTo(x2px(xy_points[2]),y2px(xy_points[3]),x2px(xy_points[4]),y2px(xy_points[5]),x2px(xy_points[6]),y2px(xy_points[7]));\
  613. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  614. if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
  615. ctx.stroke();\
  616. ctx.restore();\
  617. };",canvas_root_id,canvas_root_id,canvas_root_id);
  618. break;
  619.  
  620. case DRAW_GRIDFILL:/* not used for userdraw */
  621. fprintf(js_include_file,"\n/* draw gridfill */\
  622. var grid_fill_pattern;\
  623. function draw_gridfill(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
  624. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  625. var fc = %d+canvas_type;\
  626. var obj = create_canvas%d(fc,xsize,ysize);\
  627. var ctx = obj.getContext('2d');\
  628. var x,y;\
  629. ctx.fillStyle='rgba(255,255,255,0.01)';\
  630. ctx.rect(0,0,xsize,ysize);\
  631. ctx.fill();\
  632. ctx.lineWidth = linewidth;\
  633. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  634. for( x = 0 ; x <= xsize ; x = x + dx ){\
  635.  ctx.beginPath();\
  636.  ctx.moveTo(x,0);\
  637.  ctx.lineTo(x,ysize);\
  638.  ctx.closePath();\
  639.  ctx.stroke();\
  640. };\
  641. for( y = 0 ; y <= ysize; y = y + dy ){\
  642.  ctx.beginPath();\
  643.  ctx.moveTo(0,y);\
  644.  ctx.lineTo(xsize,y);\
  645.  ctx.closePath();\
  646.  ctx.stroke();\
  647. };\
  648. if( use_userdraw ){\
  649.  grid_fill_pattern = ctx;\
  650. }\
  651. else\
  652. {\
  653.  setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
  654. };",canvas_root_id,canvas_root_id);
  655. break;
  656.  
  657. case DRAW_IMAGEFILL:/* not  used for userdraw */
  658. fprintf(js_include_file,"\n/* draw imagefill */\
  659. function draw_imagefill(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
  660. var fc = %d+canvas_type;\
  661. var obj = create_canvas%d(fc,xsize,ysize);\
  662. var ctx = obj.getContext('2d');\
  663. var img = new Image();\
  664. img.src = URL;\
  665. obj.style.visibility = 'hidden';\
  666. img.onload = function(){\
  667.  if( use_scaling == 1 ){\
  668.   ctx.drawImage(img,x0,y0,xsize,ysize);\
  669.  }else{\
  670.   var w0 = img.width;var h0 = img.height;var w;var h;\
  671.   for( w = x0; w < xsize ; w = w + w0 ){\
  672.    for( h = y0; h < ysize; h = h + h0){\
  673.      ctx.drawImage(img,w,h,w0,h0);\
  674.    };\
  675.   };\
  676.  };\
  677.  if( use_userdraw ){\
  678.   image_pattern = ctx;\
  679.  }\
  680.  else\
  681.  {\
  682.   setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
  683.  };\
  684. };\
  685. };",canvas_root_id,canvas_root_id);
  686. break;
  687.  
  688. case DRAW_DOTFILL:/* not  used for userdraw */
  689. fprintf(js_include_file,"\n/* draw dotfill */\
  690. var dot_fill_pattern;\
  691. function draw_dotfill(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\
  692. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  693. var fc = %d+canvas_type;\
  694. var obj = create_canvas%d(fc,xsize,ysize);\
  695. var ctx = obj.getContext('2d');\
  696. var x,y;\
  697. ctx.fillStyle='rgba(255,255,255,0.01)';\
  698. ctx.rect(0,0,xsize,ysize);\
  699. ctx.fill();\
  700. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  701. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  702. for( x = 0 ; x < xsize ; x = x + dx ){\
  703.  for( y = 0 ; y < ysize ; y = y + dy ){\
  704.   ctx.beginPath();\
  705.   ctx.arc(x,y,radius,0,2*Math.PI,false);\
  706.   ctx.closePath();\
  707.   ctx.fill();\
  708.  };\
  709. };\
  710. if( use_userdraw ){\
  711.  dot_fill_pattern = ctx;\
  712. }\
  713. else\
  714. {\
  715. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  716. };\
  717. return;\
  718. };",canvas_root_id,canvas_root_id);
  719. break;
  720.  
  721. case DRAW_SUBSUP:/* Uses 'script-size for numbers and for sub & sup strings */
  722. /* use_offset
  723.  0=none;
  724.  1=yoffset
  725.  2=xoffset
  726.  3=xyoffset
  727.  4=centered
  728. */
  729. fprintf(js_include_file,"\n/* draw sub sup imitation in canvas */\
  730. function draw_subsup(ctx,x,y,txt,use_offset){\
  731. var C;var c;var len = txt.length;var baseline = 'middle';var space = 0;ctx.save();var subsup=0;\
  732. var m = 0.4*(ctx.measureText(txt).width);\
  733. var h = ctx.measureText('M').width;\
  734. switch(use_offset){\
  735.  case 0:break;\
  736.  case 1:y=y-h;;break;\
  737.  case 2:x=x+h;break;\
  738.  case 3:x=x+h;y=y-h;;break;\
  739.  case 4:x=x-m;break;\
  740.  default:break;\
  741. };\
  742. var S = parseInt(ctx.font) || 10;var s = 0.8*(parseInt(ctx.font)) || 8;\
  743. ctx.font = S+'px Helvetica';ctx.textBaseline = baseline;\
  744. for( c = 0 ; c < len ;c++){\
  745.  C = txt.charAt(c);space = 0;\
  746.  if(C == '_'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='top';C = txt.charAt(c);}\
  747.  else\
  748.  if(C == '^'){ctx.font = s+'px Helvetica';subsup = 1;c++;space = 3;baseline='bottom';C = txt.charAt(c);}\
  749.  else\
  750.  if(C == ' '){ctx.font = S+'px Helvetica';if(subsup == 1){space = 0.6*s - (ctx.measureText('M').width);subsup = 0;};baseline = 'middle';}\
  751.  else\
  752.  if(C >= '0' && C <= '9'){ctx.font = s+'px Helvetica';}\
  753.  else{ctx.font = S+'px Helvetica';};\
  754.  ctx.textBaseline = baseline;ctx.fillText(C,x,y);x = space + x + ctx.measureText(C).width;\
  755. };\
  756. ctx.stroke();\
  757. ctx.restore();\
  758. return;\
  759. };");
  760. break;
  761.  
  762. case DRAW_TEXTFILL:/* not  used for userdraw */
  763. fprintf(js_include_file,"\n/* draw textfill */\
  764. var text_fill_pattern;\
  765. function draw_textfill(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\
  766. var fc = %d+canvas_type;\
  767. var obj = create_canvas%d(fc,xsize,ysize);\
  768. var ctx = obj.getContext('2d');\
  769. ctx.font = fontfamily;\
  770. var dx = 2+(ctx.measureText(txt)).width;\
  771. var dy = 2+(ctx.measureText('MI')).width;\
  772. ctx.fillStyle='rgba(255,255,255,0.01)';\
  773. ctx.rect(0,0,xsize,ysize);\
  774. ctx.fill();\
  775. ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
  776. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  777. for(var x = 0 ; x <= xsize ; x = x + dx ){\
  778. for(var y = 0 ; y <= ysize ; y = y + dy ){\
  779.  ctx.fillText(txt, x, y);\
  780. };\
  781. };\
  782. if( use_userdraw ){\
  783. text_fill_pattern = ctx;\
  784. }\
  785. else\
  786. {\
  787. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  788. };\
  789. return;};",canvas_root_id,canvas_root_id);
  790. break;
  791.  
  792. case DRAW_DIAMONDFILL:/* not used for userdraw */
  793. fprintf(js_include_file,"\n/* draw hatch fill */\
  794. var diamond_fill_pattern;\
  795. function draw_diamondfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  796. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  797. var fc = %d+canvas_type;\
  798. var obj = create_canvas%d(fc,xsize,ysize);\
  799. var ctx = obj.getContext('2d');\
  800. var x;\
  801. var y;\
  802. ctx.lineWidth = linewidth;\
  803. ctx.fillStyle='rgba(255,255,255,0.01)';\
  804. ctx.rect(0,0,xsize,ysize);\
  805. ctx.fill();\
  806. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  807. y = ysize;\
  808. ctx.beginPath();\
  809. for( x = 0 ; x <= xsize ; x = x + dx ){\
  810.  ctx.moveTo(x,0);\
  811.  ctx.lineTo(xsize,y);\
  812.  y = y - dy;\
  813. };\
  814. y=0;\
  815. for( x = xsize ; x >= 0 ; x = x - dx){\
  816. ctx.moveTo(x,ysize);\
  817. ctx.lineTo(0,y);\
  818. y = y + dy;\
  819. };\
  820. y = 0;\
  821. for( x = 0 ; x <= xsize ; x = x + dx ){\
  822. ctx.moveTo(x,0);\
  823. ctx.lineTo(0,y);\
  824. y = y + dy;\
  825. };\
  826. y = 0;\
  827. for( x = 0 ; x <= xsize ; x = x + dx ){\
  828. ctx.moveTo(xsize,y);\
  829. ctx.lineTo(x,ysize);\
  830. y = y + dy;\
  831. };\
  832. ctx.closePath();\
  833. ctx.stroke();\
  834. if( use_userdraw ){\
  835. diamond_fill_pattern = ctx;\
  836. }\
  837. else\
  838. {\
  839. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  840. };\
  841. return;\
  842. }",canvas_root_id,canvas_root_id);
  843. break;
  844.  
  845. case DRAW_HATCHFILL:/* not used for userdraw */
  846. fprintf(js_include_file,"\n/* draw hatch fill */\
  847. var hatch_fill_pattern;\
  848. function draw_hatchfill(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
  849. if( dx == 0 || dy == 0 ){alert(\"increment is zero !!! \");return;};\
  850. var fc = %d+canvas_type;\
  851. var obj = create_canvas%d(fc,xsize,ysize);\
  852. var ctx = obj.getContext('2d');\
  853. var x,y;\
  854. ctx.fillStyle='rgba(255,255,255,0.01)';\
  855. ctx.rect(0,0,xsize,ysize);\
  856. ctx.fill();\
  857. ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
  858. ctx.lineWidth = linewidth;\
  859. y = ysize;\
  860. ctx.beginPath();\
  861. for( x = 0 ; x <= xsize ; x = x + dx ){\
  862. ctx.moveTo(x,0);\
  863. ctx.lineTo(xsize,y);\
  864. y = y - dy;\
  865. };\
  866. y = 0;\
  867. for( x = xsize ; x >= dx ; x = x - dx){\
  868. ctx.moveTo(x,ysize);\
  869. ctx.lineTo(0,y);\
  870. y = y + dy;\
  871. };\
  872. ctx.closePath();\
  873. ctx.stroke();\
  874. if( use_userdraw ){\
  875. hatch_fill_pattern = ctx;\
  876. }\
  877. else\
  878. {\
  879. setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
  880. };\
  881. return;};",canvas_root_id,canvas_root_id);
  882. break;
  883.  
  884. case DRAW_LINES:/*  used for js-tracing */
  885. fprintf(js_include_file,"\n/* draw lines */\
  886. function calc_line(x1,x2,y1,y2){\
  887. var marge = 2;\
  888. if(x1 < x2+marge && x1>x2-marge){\
  889.  return [x1,0,x1,ysize];\
  890. };\
  891. if(y1 < y2+marge && y1>y2-marge){\
  892.  return [0,y1,xsize,y1];\
  893. };\
  894. var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
  895. var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
  896. return [0,Y1,xsize,Y2];\
  897. };\
  898. var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle){\
  899. ctx.save();\
  900. var line = new Array(4);\
  901. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  902. ctx.lineWidth = line_width;\
  903. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  904. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  905. for(var p = 0 ; p < x_points.length ; p = p+2 ){\
  906.  line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
  907.  ctx.beginPath();\
  908.  ctx.moveTo(line[0],line[1]);\
  909.  ctx.lineTo(line[2],line[3]);\
  910.  ctx.closePath();\
  911.  ctx.stroke();\
  912.  }\
  913.  ctx.restore();\
  914.  return;\
  915. };");
  916. break;
  917.  
  918. case DRAW_CROSSHAIRS:/*  used for tracing */
  919. fprintf(js_include_file,"\n/* draw crosshairs  */\
  920. var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle){\
  921. ctx.save();\
  922. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  923. ctx.lineWidth = line_width;\
  924. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  925. var x1,x2,y1,y2;\
  926. for(var p = 0 ; p < x_points.length ; p++ ){\
  927.  x1 = x_points[p] - crosshair_size;\
  928.  x2 = x_points[p] + crosshair_size;\
  929.  y1 = y_points[p] - crosshair_size;\
  930.  y2 = y_points[p] + crosshair_size;\
  931.  ctx.beginPath();\
  932.  ctx.moveTo(x1,y1);\
  933.  ctx.lineTo(x2,y2);\
  934.  ctx.closePath();\
  935.  ctx.stroke();\
  936.  ctx.beginPath();\
  937.  ctx.moveTo(x2,y1);\
  938.  ctx.lineTo(x1,y2);\
  939.  ctx.closePath();\
  940.  ctx.stroke();\
  941. }\
  942. ctx.restore();\
  943.  return;\
  944. };");
  945. break;
  946.  
  947. case DRAW_VIDEO:/* not  used for userdraw */
  948. fprintf(js_include_file,"\n/* draw video */\
  949. var draw_video = function(canvas_root_id,x,y,w,h,URL){\
  950. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  951. var video_div = document.createElement(\"div\");\
  952. canvas_div.appendChild(video_div);\
  953. video_div.style.position = \"absolute\";\
  954. video_div.style.left = x+\"px\";\
  955. video_div.style.top = y+\"px\";\
  956. video_div.style.width = w+\"px\";\
  957. video_div.style.height = h+\"px\";\
  958. var video = document.createElement(\"video\");\
  959. video_div.appendChild(video);\
  960. video.style.width = w+\"px\";\
  961. video.style.height = h+\"px\";\
  962. video.autobuffer = true;\
  963. video.controls = true;video.autoplay = false;\
  964. var src = document.createElement(\"source\");\
  965. src.type = \"video/mp4\";\
  966. src.src = URL;\
  967. video.appendChild(src);\
  968. video.load();\
  969. return;\
  970. };");
  971. break;
  972.  
  973. case DRAW_AUDIO:/* not used for userdraw */
  974. fprintf(js_include_file,"\n/* draw audio */\
  975. var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
  976. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  977. var audio_div = document.createElement(\"div\");\
  978. canvas_div.appendChild(audio_div);\
  979. audio_div.style.position = \"absolute\";\
  980. audio_div.style.left = x+\"px\";\
  981. audio_div.style.top = y+\"px\";\
  982. audio_div.style.width = w+\"px\";\
  983. audio_div.style.height = h+\"px\";\
  984. var audio = document.createElement(\"audio\");\
  985. audio_div.appendChild(audio);\
  986. audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
  987. audio.autobuffer = true;\
  988. if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
  989. if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
  990. var src1 = document.createElement(\"source\");\
  991. src1.type = \"audio/ogg\";\
  992. src1.src = URL1;\
  993. audio.appendChild(src1);\
  994. var src2 = document.createElement(\"source\");\
  995. src2.type = \"audio/mpeg\";\
  996. src2.src = URL2;\
  997. audio.appendChild(src2);\
  998. audio.load();\
  999. return;\
  1000. };");
  1001. break;
  1002.  
  1003. case DRAW_HTTP:/* not  used for userdraw */
  1004. fprintf(js_include_file,"\n/* draw http */\
  1005. var draw_http = function(canvas_root_id,x,y,w,h,URL){\
  1006. var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
  1007. var http_div = document.createElement(\"div\");\
  1008. var iframe = document.createElement(\"iframe\");\
  1009. canvas_div.appendChild(http_div);\
  1010. http_div.appendChild(iframe);\
  1011. iframe.src = URL;\
  1012. iframe.setAttribute(\"width\",w);\
  1013. iframe.setAttribute(\"height\",h);\
  1014. return;\
  1015. };");
  1016. break;
  1017.  
  1018. case DRAW_XML:
  1019. /*
  1020. !! function draw_xml(object)
  1021. !! produced by : DRAW_XML
  1022. !! used by commands: katex,latex,mathml,html,obabel
  1023. !! uses js-functions: calculate_size(xml_div),rad2deg(rad)
  1024. !! user interaction: drag,onclick,slider
  1025. !! reply function: read_dragdrop()
  1026.  
  1027. onclick=0; no interaction
  1028. onclick=1: click
  1029. onclick=2: drag ==> always centered (use_offset=4)
  1030. onclick=3: slider + click on object
  1031. onclick=4: slider (always active , keyword 'active' in slider params)
  1032. onclick=5: slider + dragdrop
  1033. xy:  drag_type = 0;
  1034. x:   drag_type = 1;
  1035. y:   drag_type = 2;
  1036.  
  1037. obj.type: mathml,katex,html,svg,image(bitmap) (attention: for centering image needs to be measured after loading page !!)
  1038. */
  1039.  
  1040. fprintf(js_include_file,"\n/* draw xml */\
  1041. function centered(xml_div,obj){\
  1042. var ww = 0.5*(parseFloat(window.getComputedStyle(xml_div).width));\
  1043. var hh = 0.5*(parseFloat(window.getComputedStyle(xml_div).height));\
  1044. obj.offset = [ ww , hh ];\
  1045. xml_div.style.left = obj.x[0] - obj.offset[0] +'px';xml_div.style.top  = obj.y[0] - obj.offset[1] +'px';\
  1046. };\
  1047. function rad2deg(rad){return rad*180/(Math.PI);};\
  1048. if( typeof(slidergroup) !== 'object' ){ var slidergroup = [];};\
  1049. function draw_xml(obj){\
  1050. var mouse;var xy = [obj.x[0],obj.y[0]];\
  1051. var xml_div;\
  1052. 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};\
  1053. if( obj.once ){\
  1054.  xml_div = document.createElement('DIV');\
  1055.  canvas_div.appendChild(xml_div);\
  1056.  if( obj.type == 'katex' ){ obj.mathml = LoadKaTeX('html',obj.mathml);};\
  1057.  xml_div.id = 'xml_div'+obj.id;\
  1058.  xml_div.innerHTML = obj.mathml;\
  1059.  xml_div.style.position = \"absolute\";\
  1060.  xml_div.style.color = \"rgba(\"+obj.stroke_color+\",\"+obj.stroke_opacity+\")\";\
  1061.  xml_div.style.font = obj.fontfamily;\
  1062.  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]) ];};\
  1063.  if( obj.use_center == 1 ){if( obj.type == 'image' ){xml_div.addEventListener('load',function(e){centered(xml_div,obj);},true);}else{%s};};\
  1064. }\
  1065. else\
  1066. {\
  1067.  xml_div = document.getElementById('xml_div'+obj.id );\
  1068. };\
  1069. if( typeof(xml_div) === 'undefined' ){console.log('hmmmmm'); return;};\
  1070. xml_div.style.left = parseInt(obj.x[0] - obj.offset[0]) +'px';\
  1071. xml_div.style.top  = parseInt(obj.y[0] - obj.offset[1]) +'px';\
  1072. var back_color = 'rgba('+obj.fill_color+','+obj.fill_opacity+')';\
  1073. var no_color = 'rgba(255,255,255,0)';var dragging = false;\
  1074. if( obj.use_affine != 0 || obj.angle != 0 ){\
  1075.  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)';\
  1076. };\
  1077. if( obj.once ){\
  1078.  obj.once = false;\
  1079.  switch(obj.onclick){\
  1080.   case 2:\
  1081.    if(isTouch){\
  1082.     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);\
  1083.     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);\
  1084.     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);\
  1085.     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);\
  1086.    }else{\
  1087.     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);\
  1088.     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);\
  1089.     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);\
  1090.    };\
  1091.    break;\
  1092.   case 1:\
  1093.    if(isTouch ){\
  1094.     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);\
  1095.    }else{\
  1096.     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);\
  1097.    };\
  1098.    break;\
  1099.   case 3:\
  1100.    if(isTouch ){\
  1101.     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);\
  1102.    }else{\
  1103.     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);\
  1104.    };\
  1105.    break;\
  1106.   case 4:slidergroup[obj.object_cnt] = obj;break;\
  1107.   case 5:slidergroup[obj.object_cnt] = obj;\
  1108.    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);\
  1109.    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);\
  1110.    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);\
  1111.    break;\
  1112.   default: break;\
  1113.  };\
  1114. };\
  1115. return;\
  1116. };",mathjax);
  1117.  
  1118. /*
  1119. 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));\
  1120. */
  1121. break;
  1122.  
  1123. case DRAW_SGRAPH:
  1124. /*
  1125.  xstart = given
  1126.  ystart = given
  1127.  sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
  1128. */
  1129. fprintf(js_include_file,"\n/* draw sgraph */\
  1130. var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
  1131. 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);};\
  1132. var ctx = obj.getContext(\"2d\");\
  1133. ctx.font = fontfamily;\
  1134. var minor_opacity = 0.8*opacity;\
  1135. ctx.clearRect(0,0,xsize,ysize);\
  1136. var zero_x = 0.1*xsize;\
  1137. var zero_y = 0.9*ysize;\
  1138. var snor_x;var snor_y;\
  1139. if( xstart != xmin){\
  1140.  snor_x = 0.1*xsize;\
  1141. }\
  1142. else\
  1143. {\
  1144.  snor_x = 0;\
  1145.  xstart = xmin;\
  1146. };\
  1147. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1148. ctx.lineWidth = 2;\
  1149. ctx.beginPath();\
  1150. ctx.moveTo(xsize,zero_y);\
  1151. ctx.lineTo(zero_x,zero_y);\
  1152. ctx.lineTo(zero_x,0);\
  1153. ctx.stroke();\
  1154. ctx.closePath();\
  1155. ctx.beginPath();\
  1156. ctx.moveTo(zero_x,zero_y);\
  1157. ctx.lineTo(zero_x + 0.25*snor_x,zero_y - 0.1*snor_x);\
  1158. ctx.lineTo(zero_x + 0.5*snor_x,zero_y + 0.1*snor_x);\
  1159. ctx.lineTo(zero_x + 0.75*snor_x,zero_y - 0.1*snor_x);\
  1160. ctx.lineTo(zero_x + snor_x,zero_y);\
  1161. ctx.stroke();\
  1162. ctx.closePath();\
  1163. ctx.beginPath();\
  1164. var num = xstart;\
  1165. var flipflop = 1;\
  1166. var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
  1167. var txtsize;var txt_marge=step_x - 5;\
  1168. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1169.  txtsize = ctx.measureText(num).width;\
  1170.  if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
  1171.  if( flipflop == 1){\
  1172.   ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
  1173.  }\
  1174.  else\
  1175.  {\
  1176.   ctx.fillText(num,x - 0.5*txtsize,zero_y+2*font_size);\
  1177.  };\
  1178.  num = num + xmajor;\
  1179. };\
  1180. ctx.stroke();\
  1181. ctx.closePath();\
  1182. ctx.lineWidth = 1;\
  1183. ctx.beginPath();\
  1184. for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1185.   ctx.moveTo(x,zero_y);\
  1186.   ctx.lineTo(x,0);\
  1187. };\
  1188. ctx.stroke();\
  1189. ctx.closePath();\
  1190. if( xminor > 1){\
  1191.  ctx.lineWidth = 0.5;\
  1192.  ctx.beginPath();\
  1193.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1194.  var minor_step_x = step_x / xminor;\
  1195.  var nx;\
  1196.  for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
  1197.    num = 1;\
  1198.    for(var p = 1 ; p < xminor ; p++){\
  1199.     nx = x + num*minor_step_x;\
  1200.     ctx.moveTo(nx,zero_y);\
  1201.     ctx.lineTo(nx,0);\
  1202.     num++;\
  1203.    };\
  1204.  };\
  1205.  ctx.stroke();\
  1206.  ctx.closePath();\
  1207.  ctx.beginPath();\
  1208.  ctx.lineWidth = 2;\
  1209.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1210.  for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
  1211.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
  1212.  };\
  1213.  for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
  1214.   ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
  1215.  };\
  1216.  ctx.stroke();\
  1217.  ctx.closePath();\
  1218.  ctx.lineWidth = 0.5;\
  1219. };\
  1220. xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
  1221. if( ystart != ymin){\
  1222.  snor_y = 0.1*ysize;\
  1223. }\
  1224. else\
  1225. {\
  1226.  snor_y = 0;\
  1227.  ystart = ymin;\
  1228. };\
  1229. ctx.lineWidth = 2;\
  1230. ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1231. ctx.beginPath();\
  1232. ctx.moveTo(zero_x,zero_y);\
  1233. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.25*snor_y);\
  1234. ctx.lineTo(zero_x + 0.1*snor_y,zero_y - 0.5*snor_y);\
  1235. ctx.lineTo(zero_x - 0.1*snor_y,zero_y - 0.75*snor_y);\
  1236. ctx.lineTo(zero_x,zero_y - snor_y);\
  1237. ctx.stroke();\
  1238. ctx.closePath();\
  1239. ctx.beginPath();\
  1240. ctx.lineWidth = 1;\
  1241. num = ystart;\
  1242. var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
  1243. for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
  1244.  ctx.moveTo(zero_x,y);\
  1245.  ctx.lineTo(xsize,y);\
  1246.  ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
  1247.  num = num + ymajor;\
  1248. };\
  1249. ctx.stroke();\
  1250. ctx.closePath();\
  1251. if( yminor > 1){\
  1252.  ctx.lineWidth = 0.5;\
  1253.  ctx.beginPath();\
  1254.  ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
  1255.  var minor_step_y = step_y / yminor;\
  1256.  var ny;\
  1257.  for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
  1258.   num = 1;\
  1259.   for(var p = 1 ;p < yminor;p++){\
  1260.     ny = y + num*minor_step_y;\
  1261.     ctx.moveTo(zero_x,ny);\
  1262.     ctx.lineTo(xsize,ny);\
  1263.     num++;\
  1264.    };\
  1265.  };\
  1266.  ctx.stroke();\
  1267.  ctx.closePath();\
  1268.  ctx.lineWidth = 2;\
  1269.  ctx.beginPath();\
  1270.  ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
  1271.  for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
  1272.   ctx.moveTo(zero_x,y);\
  1273.   ctx.lineTo(zero_x+12,y);\
  1274.  };\
  1275.  for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
  1276.   ctx.moveTo(zero_x,y);\
  1277.   ctx.lineTo(zero_x+6,y);\
  1278.  };\
  1279.  ctx.stroke();\
  1280.  ctx.closePath();\
  1281. };\
  1282. ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
  1283. if( typeof(legend%d)  !== 'undefined' ){\
  1284.  ctx.globalAlpha = 1.0;\
  1285.  var y_offset = 2*font_size;\
  1286.  var txt;var txt_size;\
  1287.  var x_offset = xsize - 2*font_size;\
  1288.  var l_length = legend%d.length;var barcolor = new Array();\
  1289.  if( typeof(legendcolors%d) !== 'undefined' ){\
  1290.   for(var p = 0 ; p < l_length ; p++){\
  1291.    barcolor[p] = legendcolors%d[p];\
  1292.   };\
  1293.  }else{\
  1294.   if( barcolor.length == 0 ){\
  1295.    for(var p = 0 ; p < l_length ; p++){\
  1296.     barcolor[p] = stroke_color;\
  1297.    };\
  1298.   };\
  1299.  };\
  1300.  for(var p = 0; p < l_length; p++){\
  1301.   ctx.fillStyle = barcolor[p];\
  1302.   txt = legend%d[p];\
  1303.   txt_size = ctx.measureText(txt).width;\
  1304.   ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
  1305.   y_offset = parseInt(y_offset + 1.5*font_size);\
  1306.  };\
  1307. };\
  1308. if( typeof(xaxislabel) !== 'undefined' ){\
  1309.   ctx.fillStyle = \'#000000\';\
  1310.   var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
  1311.   ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
  1312. };\
  1313. if( typeof(yaxislabel) !== 'undefined'){\
  1314.   ctx.save();\
  1315.   ctx.fillStyle = \'#000000\';\
  1316.   var txt_size = ctx.measureText(yaxislabel).width;\
  1317.   ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
  1318.   ctx.rotate(-0.5*Math.PI);\
  1319.   ctx.fillText(yaxislabel,0,0);\
  1320.   ctx.restore();\
  1321. };\
  1322. };",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);
  1323. break;
  1324.  
  1325. case DRAW_NUMBERLINE:
  1326. fprintf(js_include_file,"\n/* draw numberline */\
  1327. var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
  1328. var obj = create_canvas%d(canvas_type,xsize,ysize);\
  1329. var ctx = obj.getContext(\"2d\");\
  1330. ctx.lineWidth = linewidth || 1;\
  1331. ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
  1332. ctx.font = fontfamily || 'Arial 12px';\
  1333. var fontsize = parseInt(ctx.font);\
  1334. ctx.fillStyle =  \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
  1335. x1 = x2px(x1);\
  1336. x0 = x2px(x0);\
  1337. y0 = y2px(y0);\
  1338. y1 = y2px(y1);\
  1339. var sub_devision = -1;\
  1340. if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
  1341. var ybase1 = parseInt( y0 + fontsize + 2 );\
  1342. var ybase2 = parseInt( ybase1 + fontsize + 2 );\
  1343. var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
  1344. var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
  1345. xmajor = x2px(xmajor) - x2px(0);\
  1346. var i;var len;var p;\
  1347. xminor = xmajor / xminor;\
  1348. ctx.beginPath();\
  1349. for(p = x0 ; p < x1 ; p = p + xmajor){\
  1350.  ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
  1351.  for(var s = p ; s < p + xmajor ; s = s + xminor ){\
  1352.   ctx.moveTo(s,y0);\
  1353.   if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
  1354.   i++;\
  1355.  };\
  1356. };\
  1357. ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
  1358. ctx.closePath();\
  1359. ctx.stroke();\
  1360. if( use_axis_numbering >-1 ){\
  1361.  var str = x_strings[use_axis_numbering];\
  1362.  len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1363.  var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
  1364.  ctx.beginPath();\
  1365.  if( x_strings_up[use_axis_numbering] == null){\
  1366.   for(var p = 0 ; p < len ; p = p+2){\
  1367.    var x_nums = x2px(eval(str[p]));\
  1368.    var x_text = str[p+1];\
  1369.    corr = ctx.measureText(x_text).width;\
  1370.    if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1371.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
  1372.   };\
  1373.  }\
  1374.  else\
  1375.  {\
  1376.   for(var p = 0 ; p < len ; p = p+2){\
  1377.    x_nums = x2px(eval(str[p]));\
  1378.    x_text = str[p+1];\
  1379.    corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
  1380.    ctx.save();\
  1381.    ctx.translate(x_nums+0.5*fontsize, corr);\
  1382.    ctx.rotate(-1.5708);\
  1383.    ctx.fillText(x_text,0,0);\
  1384.    ctx.restore();\
  1385.   };\
  1386.  }\
  1387. }\
  1388. else\
  1389. {\
  1390.  var corr;var num;var flipflop = 0;var off = ybase1;\
  1391.  var prec = parseInt(Math.log(precision)/Math.log(10));\
  1392.  for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
  1393.   num = (px2x(p)).toFixed(prec);\
  1394.   corr = ctx.measureText(num).width;\
  1395.   if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
  1396.   ctx.fillText(num,parseInt(p - 0.5*corr),off);\
  1397.  };\
  1398. };\
  1399. };",canvas_root_id);
  1400. break;
  1401.  
  1402. case DRAW_GRID:/* not used for userdraw */
  1403. fprintf(js_include_file,"\n/* draw grid */\
  1404. 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){\
  1405. 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);};\
  1406. var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
  1407. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
  1408. ctx.save();\
  1409. var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1410. ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
  1411. var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
  1412. ctx.font = font_family;\
  1413. var barcolor = new Array();\
  1414. var xstep = xsize*xmajor/(xmax - xmin);\
  1415. var ystep = ysize*ymajor/(ymax - ymin);\
  1416. var x2step = xstep / xminor;\
  1417. var y2step = ystep / yminor;\
  1418. var zero_x = x2px(0);var zero_y = y2px(0);var f_x;var f_y;\
  1419. if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;};\
  1420. if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;};\
  1421. ctx.beginPath();\
  1422. ctx.lineWidth = line_width;\
  1423. ctx.strokeStyle = stroke_color;\
  1424. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1425. ctx.moveTo(p,0);\
  1426. ctx.lineTo(p,ysize);\
  1427. };\
  1428. for(var p = zero_x ; p > 0; p = p - xstep){\
  1429. ctx.moveTo(p,0);\
  1430. ctx.lineTo(p,ysize);\
  1431. };\
  1432. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1433. ctx.moveTo(0,p);\
  1434. ctx.lineTo(xsize,p);\
  1435. };\
  1436. for(var p = zero_y ; p > 0; p = p - ystep){\
  1437. ctx.moveTo(0,p);\
  1438. ctx.lineTo(xsize,p);\
  1439. };\
  1440. if( typeof(xaxislabel) !== 'undefined' ){\
  1441. ctx.save();\
  1442. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1443. var corr =  parseInt(1.1*ctx.measureText(xaxislabel).width);\
  1444. ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
  1445. ctx.restore();\
  1446. };\
  1447. if( typeof(yaxislabel) !== 'undefined' ){\
  1448. ctx.save();\
  1449. ctx.font = \"italic \"+font_size+\"px Arial\";\
  1450. var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
  1451. ctx.translate(zero_x+tics_length + font_size,corr);\
  1452. ctx.rotate(-0.5*Math.PI);\
  1453. ctx.fillText(yaxislabel,0,0);\
  1454. ctx.restore();\
  1455. };\
  1456. ctx.stroke();\
  1457. ctx.closePath();",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  1458.  
  1459. if( use_axis == 1 ){
  1460. fprintf(js_include_file,"\
  1461. ctx.save();\
  1462. ctx.beginPath();\
  1463. ctx.strokeStyle = stroke_color;\
  1464. ctx.lineWidth = 0.6*line_width;\
  1465. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1466.  ctx.moveTo(p,0);\
  1467.  ctx.lineTo(p,ysize);\
  1468. };\
  1469. for(var p = zero_x ; p > 0; p = p - x2step){\
  1470.  ctx.moveTo(p,0);\
  1471.  ctx.lineTo(p,ysize);\
  1472. };\
  1473. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1474.  ctx.moveTo(0,p);\
  1475.  ctx.lineTo(xsize,p);\
  1476. };\
  1477. for(var p = zero_y ; p > 0; p = p - y2step){\
  1478.  ctx.moveTo(0,p);\
  1479.  ctx.lineTo(xsize,p);\
  1480. };\
  1481. ctx.stroke();\
  1482. ctx.closePath();\
  1483. ctx.beginPath();\
  1484. ctx.lineWidth = 2*line_width;\
  1485. ctx.strokeStyle = axis_color;\
  1486. ctx.moveTo(0,zero_y);\
  1487. ctx.lineTo(xsize,zero_y);\
  1488. ctx.moveTo(zero_x,0);\
  1489. ctx.lineTo(zero_x,ysize);\
  1490. ctx.stroke();\
  1491. ctx.closePath();\
  1492. ctx.lineWidth = line_width+0.5;\
  1493. ctx.beginPath();\
  1494. for(var p = zero_x ; p < xsize; p = p + xstep){\
  1495.  ctx.moveTo(p,zero_y-tics_length);\
  1496.  ctx.lineTo(p,zero_y+tics_length);\
  1497. };\
  1498. for(var p = zero_x ; p > 0; p = p - xstep){\
  1499.  ctx.moveTo(p,zero_y-tics_length);\
  1500.  ctx.lineTo(p,zero_y+tics_length);\
  1501. };\
  1502. for(var p = zero_y ; p < ysize; p = p + ystep){\
  1503.  ctx.moveTo(zero_x-tics_length,p);\
  1504.  ctx.lineTo(zero_x+tics_length,p);\
  1505. };\
  1506. for(var p = zero_y ; p > 0; p = p - ystep){\
  1507.  ctx.moveTo(zero_x-tics_length,p);\
  1508.  ctx.lineTo(zero_x+tics_length,p);\
  1509. };\
  1510. for(var p = zero_x ; p < xsize; p = p + x2step){\
  1511.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1512.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1513. };\
  1514. for(var p = zero_x ; p > 0; p = p - x2step){\
  1515.  ctx.moveTo(p,zero_y-0.5*tics_length);\
  1516.  ctx.lineTo(p,zero_y+0.5*tics_length);\
  1517. };\
  1518. for(var p = zero_y ; p < ysize; p = p + y2step){\
  1519.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1520.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1521. };\
  1522. for(var p = zero_y ; p > 0; p = p - y2step){\
  1523.  ctx.moveTo(zero_x-0.5*tics_length,p);\
  1524.  ctx.lineTo(zero_x+0.5*tics_length,p);\
  1525. };\
  1526. ctx.stroke();\
  1527. ctx.closePath();\
  1528. ctx.restore();");
  1529. }
  1530.  
  1531. if( use_axis_numbering != -1 ){
  1532. fprintf(js_include_file,"\
  1533. ctx.save();\
  1534. ctx.fillColor = axis_color;\
  1535. ctx.strokeStyle = axis_color;\
  1536. ctx.lineWidth = 2*line_width;\
  1537. ctx.font = font_family;\
  1538. var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
  1539. if( x_strings[use_axis_numbering] != null ){\
  1540.  var str = x_strings[use_axis_numbering];\
  1541.  var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired:  text missing ! \");return;};\
  1542.  ctx.beginPath();\
  1543.  if( x_strings_up[use_axis_numbering] == null){\
  1544.   for(var p = 0 ; p < len ; p = p+2){\
  1545.    var x_nums = x2px(eval(str[p]));\
  1546.    var x_text = str[p+1];\
  1547.    corr = ctx.measureText(x_text).width;\
  1548.    skip = 1.2*corr/xstep;\
  1549.    if( zero_y+2*font_size > ysize ){shift = ysize - 2*font_size;};\
  1550.    if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;};};\
  1551.    ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
  1552.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1553.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1554.   };\
  1555.  }\
  1556.  else\
  1557.  {\
  1558.   for(var p = 0 ; p < len ; p = p+2){\
  1559.    var x_nums = x2px(eval(str[p]));\
  1560.    var x_text = str[p+1];\
  1561.    corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
  1562.    if( corr > ysize ){corr = ysize;};\
  1563.    ctx.save();\
  1564.    ctx.translate(x_nums+0.25*font_size, corr);\
  1565.    ctx.rotate(-1.5708);\
  1566.    ctx.fillText(x_text,0,0);\
  1567.    ctx.restore();\
  1568.    ctx.moveTo(x_nums,zero_y - tics_length);\
  1569.    ctx.lineTo(x_nums,zero_y + tics_length);\
  1570.   };\
  1571.  };\
  1572.  ctx.closePath();\
  1573. }\
  1574. else\
  1575. {\
  1576.  skip = 1;cnt = px2x(zero_x);\
  1577.  prec = Math.log(precision)/(Math.log(10));\
  1578.  var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
  1579.  for( var p = zero_x ; p < xsize ; p = p+xstep){\
  1580.   if(skip == 0 ){\
  1581.    disp_cnt = cnt.toFixed(prec);\
  1582.    corr = ctx.measureText(disp_cnt).width;\
  1583.    skip = parseInt(1.2*corr/xstep);\
  1584.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1585.   }\
  1586.   else\
  1587.   {\
  1588.    skip--;\
  1589.   };\
  1590.   cnt = cnt + xmajor;\
  1591.  };\
  1592.  cnt = px2x(zero_x);skip = 1;\
  1593.  for( var p = zero_x ; p > 0 ; p = p-xstep){\
  1594.   if(skip == 0 ){\
  1595.    disp_cnt = cnt.toFixed(prec);\
  1596.    corr = ctx.measureText(disp_cnt).width;\
  1597.    skip = parseInt(1.2*corr/xstep);\
  1598.    ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
  1599.   }\
  1600.   else\
  1601.   {\
  1602.    skip--;\
  1603.   };\
  1604.   cnt = cnt - xmajor;\
  1605.  };\
  1606. };\
  1607. if( y_strings != null ){\
  1608.  var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired:  text missing ! \");return;};\
  1609.  ctx.beginPath();\
  1610.  for(var p = 0 ; p < len ; p = p+2){\
  1611.   var y_nums = y2px(eval(y_strings[p]));\
  1612.   var y_text = y_strings[p+1];\
  1613.   corr = 2 + tics_length + ctx.measureText(y_text).width;\
  1614.   if( corr > zero_x){corr = parseInt(zero_x+2); }\
  1615.   ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
  1616.   ctx.moveTo(zero_x - tics_length,y_nums);\
  1617.   ctx.lineTo(zero_x + tics_length,y_nums);\
  1618.  };\
  1619.  ctx.closePath();\
  1620. }\
  1621. else\
  1622. {\
  1623.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1624.  cnt = px2y(zero_y);skip = 1;\
  1625.  for( var p = zero_y ; p < ysize ; p = p+ystep){\
  1626.   if(skip == 0 ){\
  1627.    skip = parseInt(1.4*font_size/ystep);\
  1628.    disp_cnt = cnt.toFixed(prec);\
  1629.    if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1630.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1631.   }\
  1632.   else\
  1633.   {\
  1634.    skip--;\
  1635.   };\
  1636.   cnt = cnt - ymajor;\
  1637.  };\
  1638.  corr = 0;cnt = px2y(zero_y);skip = 1;\
  1639.  if(f_x == 1){ corr = 1.5*tics_length; }\
  1640.  for( var p = zero_y ; p > 0 ; p = p-ystep){\
  1641.   if(skip == 0 ){\
  1642.    skip = parseInt(1.4*font_size/ystep);\
  1643.    disp_cnt = cnt.toFixed(prec);\
  1644.    if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
  1645.    ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
  1646.   }\
  1647.   else\
  1648.   {\
  1649.    skip--;\
  1650.   };\
  1651.   cnt = cnt + ymajor;\
  1652.  };\
  1653. };\
  1654. ctx.stroke();\
  1655. ctx.restore();");
  1656. }
  1657.  
  1658. if( legend_cnt != -1 ){
  1659. fprintf(js_include_file,"ctx.save();\
  1660. ctx.globalAlpha = 1.0;\
  1661. ctx.font = \"bold \"+font_size+\"px Arial\";\
  1662. var y_offset = 2*font_size;\
  1663. var txt;var txt_size;\
  1664. var x_offset = xsize - 2*font_size;\
  1665. var l_length = legend0.length;\
  1666. if( typeof(legendcolors0) !== 'undefined' ){\
  1667.  for(var p = 0 ; p < l_length ; p++){\
  1668.    barcolor[p] = legendcolors0[p];\
  1669.  };\
  1670. }\
  1671. else\
  1672. {\
  1673.  if( barcolor.length == 0 ){\
  1674.   for(var p = 0 ; p < l_length ; p++){\
  1675.    barcolor[p] = stroke_color;\
  1676.   };\
  1677.  };\
  1678. };\
  1679. for(var p = 0; p < l_length; p++){\
  1680.  ctx.fillStyle = barcolor[p];\
  1681.  txt = legend0[p];\
  1682.  txt_size = ctx.measureText(txt).width;\
  1683.  ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
  1684.  y_offset = parseInt(y_offset + 1.5*font_size);\
  1685. };\
  1686. ctx.restore();");
  1687. }
  1688.  
  1689. if( barchart_cnt != 0 ){
  1690. fprintf(js_include_file,"ctx.save();\
  1691. var num_barcharts = 0;\
  1692. var bar_name = eval('barchart_0');\
  1693. while( typeof(bar_name) !== 'undefined' ){\
  1694.    try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
  1695. };\
  1696. var bar_width = parseInt(0.8*x2step/(num_barcharts));\
  1697. for(var i=0 ; i< num_barcharts ; i++){\
  1698.  bar_name = eval('barchart_'+i);\
  1699.  var bar_x = new Array();\
  1700.  var bar_y = new Array();\
  1701.  var lb = bar_name.length;\
  1702.  var idx = 0;\
  1703.  var dx = parseInt(0.5*i*bar_width);\
  1704.  for( var p = 0 ; p < lb ; p = p + 3 ){\
  1705.   bar_x[idx] = x2px(bar_name[p]);\
  1706.   bar_y[idx] = y2px(bar_name[p+1]);\
  1707.   barcolor[idx] = bar_name[p+2];\
  1708.   idx++;\
  1709.  };\
  1710.  ctx.globalAlpha = fill_opacity;\
  1711.  for( var p = 0; p < idx ; p++ ){\
  1712.   ctx.beginPath();\
  1713.   ctx.strokeStyle = barcolor[p];\
  1714.   ctx.fillStyle = barcolor[p];\
  1715.   ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
  1716.   ctx.fill();\
  1717.   ctx.stroke();\
  1718.   ctx.closePath();\
  1719.  };\
  1720. };\
  1721. ctx.restore();");
  1722. }
  1723.  
  1724. if( linegraph_cnt != 0 ){
  1725. fprintf(js_include_file,"ctx.save();\
  1726. ctx.globalAlpha = 1.0;\
  1727. var i = 0;\
  1728. var line_name = eval('linegraph_'+i);\
  1729. while ( typeof(line_name) !== 'undefined' ){\
  1730.  ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
  1731.  ctx.lineWidth = parseInt(line_name[1]);\
  1732.  if(line_name[2] == \"1\"){\
  1733.   var d1 = parseInt(line_name[3]);\
  1734.   var d2 = parseInt(line_name[4]);\
  1735.   if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
  1736.  }\
  1737.  else\
  1738.  {\
  1739.  if(ctx.setLineDash){ctx.setLineDash = null;};if(ctx.mozDash){ctx.mozDash = null;}\
  1740.  };\
  1741.  var data_x = new Array();var data_y = new Array();\
  1742.  var lb = line_name.length;var idx = 0;\
  1743.  for( var p = 5 ; p < lb ; p = p + 2 ){\
  1744.   data_x[idx] = x2px(line_name[p]);\
  1745.   data_y[idx] = y2px(line_name[p+1]);\
  1746.   idx++;\
  1747.  };\
  1748.  for( var p = 0; p < idx ; p++){\
  1749.   ctx.beginPath();\
  1750.   ctx.moveTo(data_x[p],data_y[p]);\
  1751.   ctx.lineTo(data_x[p+1],data_y[p+1]);\
  1752.   ctx.stroke();\
  1753.   ctx.closePath();\
  1754.  };\
  1755.  i++;\
  1756.  try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
  1757. };\
  1758. ctx.restore();return;");
  1759. }
  1760. fprintf(js_include_file,"};");
  1761.  
  1762. break;
  1763.  
  1764. case DRAW_PIECHART:
  1765. fprintf(js_include_file,"\n/* draw piecharts */\
  1766. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1767. function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
  1768. var obj;\
  1769. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1770.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1771. }\
  1772. else\
  1773. {\
  1774.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1775. };\
  1776. var center_text = use_offset || 0;\
  1777. var ld = data_color_list.length;\
  1778. var sum = 0;\
  1779. var idx = 0;\
  1780. var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
  1781. var colors = new Array();\
  1782. var data = new Array();\
  1783. for(var p = 0;p < ld; p = p + 2){\
  1784.  data[idx] = parseFloat(data_color_list[p]);\
  1785.  sum = sum + data[idx];\
  1786.  colors[idx] = data_color_list[p+1];\
  1787.  idx++;\
  1788. };\
  1789. if( use_filled > 1 ){\
  1790.  var i = 2;\
  1791.  for(var p = 0 ;  p < idx ; p++){\
  1792.   if(i > 5 ){ i = 2; };\
  1793.   var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
  1794.  };\
  1795. };\
  1796. var ctx = obj.getContext(\"2d\");\
  1797. ctx.save();\
  1798. var angle;\
  1799. var angle_end = 0;\
  1800. var offset = Math.PI / 2;\
  1801. ctx.globalAlpha = fill_opacity;\
  1802. var angles = [];\
  1803. for(var p=0; p < idx; p++){\
  1804.  ctx.beginPath();\
  1805.  ctx.moveTo(x_center,y_center);\
  1806.  angle = Math.PI * (2 * data[p] / sum);\
  1807.  ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
  1808.  ctx.lineTo(x_center, y_center);\
  1809.  if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
  1810.  ctx.fill();\
  1811.  ctx.closePath();\
  1812.  angles.push(angle_end + angle - offset);\
  1813.  angle_end  = angle_end + angle;\
  1814. };\
  1815. if(typeof(legend0) !== 'undefined'){\
  1816.  var legenda = eval(\"legend\"+legend_cnt);\
  1817.  ctx.globalAlpha = 1.0;\
  1818.  ctx.font = font_family;\
  1819.  var y_offset = font_size;\
  1820.  var x_offset = 0;\
  1821.  var txt;var txt_size;\
  1822.  for(var p = 0; p < idx; p++){\
  1823.   ctx.fillStyle = colors[p];\
  1824.   txt = legenda[p];\
  1825.   txt_size = ctx.measureText(txt).width + 2;\
  1826.   if(center_text == 4){\
  1827.    ctx.save();\
  1828.    ctx.translate(x_center, y_center);\
  1829.    ctx.rotate(angles[p]);\
  1830.    ctx.fillText(txt,radius-txt_size,0);\
  1831.    ctx.restore();\
  1832.   }\
  1833.   else\
  1834.   {\
  1835.    if( x_center + radius + txt_size > xsize ){ x_offset =  x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
  1836.    ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
  1837.    y_offset = parseInt(y_offset + 1.5*font_size);\
  1838.   };\
  1839.  };\
  1840. };\
  1841. ctx.restore();\
  1842. };",canvas_root_id,canvas_root_id,canvas_root_id);
  1843. break;
  1844.  
  1845. case DRAW_JSBOXPLOT:
  1846. fprintf(js_include_file,"\n/* draw jsboxplots */\
  1847. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1848. function statistics(data){\
  1849. var len = data.length;\
  1850. var min = 10000000;\
  1851. var max = -10000000;\
  1852. var sum = 0;var d;\
  1853. for(var i=0;i<len;i++){\
  1854.  d = data[i];\
  1855.  if(d < min){min = d;}else{if(d > max){max = d;};};\
  1856.  sum+= parseFloat(data[i]);\
  1857. };\
  1858. var mean = parseFloat(sum/len);\
  1859. var variance = 0;\
  1860. for(var i=0;i<len;i++){\
  1861.  d = data[i];\
  1862.  variance += (d - mean)*(d - mean);\
  1863. };\
  1864. variance = parseFloat(variance / len);\
  1865. var std = Math.sqrt(variance);\
  1866. data.sort(function(a,b){return a - b;});\
  1867. var median;var Q1;var Q3;\
  1868. var half = Math.floor(0.5*len);\
  1869. var q1 = Math.floor(0.25*len);\
  1870. var q3 = Math.floor(0.75*len);\
  1871. var half = Math.floor(0.5*len);\
  1872. if(len %%2 == 1){\
  1873.  median = data[half];\
  1874.  Q1 = data[q1];\
  1875.  Q3 = data[q3];\
  1876. }\
  1877. else\
  1878. {\
  1879.  median = (data[half - 1] + data[half] )/2;\
  1880.  Q1 = (data[q1 - 1] + data[q1] )/2;\
  1881.  Q3 = (data[q3 - 1] + data[q3] )/2;\
  1882. };\
  1883. return [min,Q1,median,Q3,max];\
  1884. };");
  1885. break;
  1886.  
  1887. case DRAW_BOXPLOT:
  1888. fprintf(js_include_file,"\n/* draw boxplots */\
  1889. if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
  1890. 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){\
  1891. var obj;\
  1892. 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);};\
  1893. var ctx = obj.getContext(\"2d\");\
  1894. ctx.clearRect(0,0,xsize,ysize);\
  1895. ctx.save();\
  1896. ctx.lineWidth = line_width;\
  1897. ctx.strokeStyle =  \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1898. var colors = new Array(2);\
  1899. colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  1900. colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  1901. if( use_filled > 1 ){\
  1902.   var pat = create_Pattern(0,0,3,colors[0]);\
  1903.   all_fill_patterns[0] = pat;\
  1904.   pat = create_Pattern(0,0,4,colors[1]);\
  1905.   all_fill_patterns[1] = pat;\
  1906. };\
  1907. if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
  1908. var hh = 0.25*hw;\
  1909. switch(boxplot_source){\
  1910.  case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
  1911.  case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
  1912.  case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
  1913.  default: break;\
  1914. };\
  1915. var min,Q1,median,Q3,max;\
  1916. if(xy == 1 ){\
  1917.  min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
  1918.  hh = Math.abs(y2px(hh) - y2px(ystart));\
  1919.  hw = Math.abs(y2px(hw) - y2px(ystart));\
  1920.  cxy = y2px(cxy);\
  1921.  ctx.beginPath();\
  1922.  ctx.moveTo(min,cxy);\
  1923.  ctx.lineTo(Q1,cxy);\
  1924.  ctx.moveTo(Q3,cxy);\
  1925.  ctx.lineTo(max,cxy);\
  1926.  ctx.moveTo(min,cxy+hh);\
  1927.  ctx.lineTo(min,cxy-hh);\
  1928.  ctx.moveTo(max,cxy+hh);\
  1929.  ctx.lineTo(max,cxy-hh);\
  1930.  ctx.closePath();\
  1931.  ctx.stroke();\
  1932.  ctx.beginPath();\
  1933.  ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
  1934.  ctx.closePath();\
  1935.  if( use_filled != 0 ){\
  1936.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1937.   ctx.fill();\
  1938.  };\
  1939.  ctx.stroke();\
  1940.  ctx.beginPath();\
  1941.  ctx.rect(median,cxy-2*hh,Q3-median,hw);\
  1942.  ctx.closePath();\
  1943.  if( use_filled != 0 ){\
  1944.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1945.   ctx.fill();\
  1946.  };\
  1947.  ctx.stroke();\
  1948. }else{\
  1949.  min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
  1950.  hh = Math.abs(x2px(hh) - x2px(xstart));\
  1951.  hw = Math.abs(x2px(hw) - x2px(xstart));\
  1952.  cxy = x2px(cxy);\
  1953.  ctx.beginPath();\
  1954.  ctx.moveTo(cxy,min);\
  1955.  ctx.lineTo(cxy,Q1);\
  1956.  ctx.moveTo(cxy,Q3);\
  1957.  ctx.lineTo(cxy,max);\
  1958.  ctx.moveTo(cxy + hh,min);\
  1959.  ctx.lineTo(cxy - hh,min);\
  1960.  ctx.moveTo(cxy + hh,max);\
  1961.  ctx.lineTo(cxy - hh,max);\
  1962.  ctx.closePath;\
  1963.  ctx.stroke();\
  1964.  ctx.beginPath();\
  1965.  ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
  1966.  ctx.closePath();\
  1967.  if( use_filled != 0 ){\
  1968.   if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
  1969.   ctx.fill();\
  1970.  };\
  1971.  ctx.stroke();\
  1972.  ctx.beginPath();\
  1973.  ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
  1974.  ctx.closePath();\
  1975.  if( use_filled != 0 ){\
  1976.   if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
  1977.   ctx.fill();\
  1978.  };\
  1979.  ctx.stroke();\
  1980. };\
  1981. ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
  1982. break;
  1983.  
  1984. case DRAW_CENTERSTRING:
  1985. fprintf(js_include_file,"\n/* draw centerstring */\
  1986. var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
  1987. var obj;\
  1988. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  1989.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  1990. }\
  1991. else\
  1992. {\
  1993.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  1994. };\
  1995. var ctx = obj.getContext(\"2d\");\
  1996. ctx.save();\
  1997. ctx.clearRect(0,0,xsize,ysize);\
  1998. ctx.font = font_family;\
  1999. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  2000. var stringwidth = ctx.measureText(text).width;\
  2001. var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
  2002. ctx.fillText(text,x,y2px(y));\
  2003. ctx.restore();\
  2004. return;\
  2005. };",canvas_root_id,canvas_root_id,canvas_root_id);
  2006. break;
  2007.  
  2008. case DRAW_TEXTS:
  2009. fprintf(js_include_file,"\n/* draw text */\
  2010. var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_offset){\
  2011. var obj;\
  2012. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2013.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2014. }\
  2015. else\
  2016. {\
  2017.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2018. };\
  2019. var ctx = obj.getContext(\"2d\");\
  2020. if( font_family != 'null' ){\
  2021.  ctx.font = font_family;\
  2022. }\
  2023. else\
  2024. {\
  2025.  ctx.font = font_size+'px Arial';\
  2026. };\
  2027. 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;};};\
  2028. if(angle2 == 0 && angle != 0){\
  2029.  ctx.save();\
  2030.  if(use_rotate == 1 ){\
  2031.  ctx.rotate(angle*Math.PI/180);};\
  2032.  ctx.restore();\
  2033. };\
  2034. ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  2035. if(angle2 != 0){\
  2036.  ctx.save();\
  2037.  ctx.translate(x,y);\
  2038.  ctx.rotate((360-angle2)*(Math.PI / 180));\
  2039.  ctx.fillText(text,0,0);\
  2040.  ctx.restore();\
  2041. }\
  2042. else\
  2043. {\
  2044.  ctx.fillText(text,x,y);\
  2045. };\
  2046. return;\
  2047. };",canvas_root_id,canvas_root_id,canvas_root_id);
  2048. break;
  2049.  
  2050. case DRAW_INPUTS:
  2051. /* function center_input may be used for other centering...if not? integrate it in draw_static_inputs...*/
  2052. fprintf(js_include_file,"\n/* draw static input fields */\
  2053. if(typeof(input_cnt) !== 'undefined' ){var input_cnt = 0;};\
  2054. var draw_static_inputs = function(root_id,num,x,y,size,readonly,css_class,value,use_offset){\
  2055. var input = document.createElement(\"input\");\
  2056. input.setAttribute(\"id\",\"canvas_input\"+num);\
  2057. input.setAttribute(\"style\",\"text-align:center;position:absolute;left:\"+x+\"px;top:\"+y+\"px;\");\
  2058. if(css_class != \"none\"){input.setAttribute(\"class\",css_class);};\
  2059. input.setAttribute(\"size\",size);\
  2060. input.setAttribute(\"value\",value);\
  2061. input.addEventListener(\"touchstart\", function(e){this.focus();},false);\
  2062. if( readonly == 0 || wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
  2063. canvas_div.appendChild(input);\
  2064. if(use_offset != 0 ){ center_input('canvas_input'+num,x,y,css_class);};\
  2065. input_cnt++;\
  2066. };\
  2067. function center_input(id,x,y,css_class){\
  2068. var inp = document.getElementById(id);\
  2069. var pos = inp.getBoundingClientRect();\
  2070. var center_x = parseInt(x - 0.5*(pos.width));\
  2071. var center_y = parseInt(y - 0.5*(pos.height));\
  2072. 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;\");}\
  2073. catch(e){console.log('error :'+e);return;};\
  2074. };");
  2075. break;
  2076.  
  2077. case DRAW_TEXTAREAS:
  2078. fprintf(js_include_file,"\n/* draw text area inputfields */\
  2079. var draw_textareas = function(root_id,num,x,y,cols,rows,readonly,style,value){\
  2080. var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
  2081. var textarea = document.createElement(\"textarea\");\
  2082. textarea.setAttribute(\"id\",\"canvas_input\"+num);\
  2083. textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
  2084. textarea.setAttribute(\"cols\",cols);\
  2085. textarea.setAttribute(\"rows\",rows);\
  2086. textarea.value = value;\
  2087. if( readonly == 0 || wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
  2088. canvas_div.appendChild(textarea);};");
  2089. break;
  2090.  
  2091. case DRAW_PIXELS:
  2092. fprintf(js_include_file,"\n/* draw pixel */\
  2093. var draw_setpixel = function(x,y,color,opacity,pixelsize){\
  2094. var idx = 2000+Math.ceil(1000*(Math.random()));\
  2095. var canvas = create_canvas%d(idx,xsize,ysize);\
  2096. var d = 0.5*pixelsize;\
  2097. var ctx = canvas.getContext(\"2d\");\
  2098. if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
  2099. ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
  2100. ctx.clearRect(0,0,xsize,ysize);\
  2101. for(var p=0; p<x.length;p++){\
  2102.  ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
  2103. };\
  2104. ctx.fill();ctx.stroke();\
  2105. };",canvas_root_id);
  2106. break;
  2107.  
  2108. case DRAW_CLOCK:
  2109. fprintf(js_include_file,"\n/* command clock */\
  2110. var clock_canvas = create_canvas%d(%d,xsize,ysize);\
  2111. var clock_ctx = clock_canvas.getContext(\"2d\");\
  2112. var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
  2113. clock_ctx.clearRect(xc - radius,yc - radius,2*radius,2*radius);\
  2114. clock_ctx.save();\
  2115. clock_ctx.globalAlpha = clock_bg_opacity;\
  2116. this.type = type || 0;\
  2117. this.interaction = interaction || 0;\
  2118. this.H = H;\
  2119. this.M = M;\
  2120. this.S = S;\
  2121. this.xc = xc || xsize/2;\
  2122. this.yc = yc || ysize/2;\
  2123. this.radius = radius || xsize/4;\
  2124. var font_size = parseInt(0.2*this.radius);\
  2125. this.H_color = h_color || \"black\";\
  2126. this.M_color = m_color || \"black\";\
  2127. this.S_color = s_color || \"black\";\
  2128. this.fg_color = fg_color || \"black\";\
  2129. this.bg_color = bg_color || \"white\";\
  2130. clock_ctx.translate(this.xc,this.yc);\
  2131. clock_ctx.beginPath();\
  2132. clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
  2133. clock_ctx.fillStyle = this.bg_color;\
  2134. clock_ctx.fill();\
  2135. clock_ctx.closePath();\
  2136. clock_ctx.beginPath();\
  2137. clock_ctx.font = font_size+\"px Arial\";\
  2138. clock_ctx.fillStyle = this.fg_color;\
  2139. clock_ctx.textAlign = \"center\";\
  2140. clock_ctx.textBaseline = 'middle';\
  2141. var angle;var x1,y1,x2,y2;\
  2142. var angle_cos;var angle_sin;\
  2143. clock_ctx.globalAlpha = clock_fg_opacity;\
  2144. switch(type){\
  2145. case 0:clock_ctx.beginPath();\
  2146. for(var p = 1; p <= 12 ; p++){\
  2147.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  2148.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  2149.  x1 = 0.8*angle_cos;y1 = 0.8*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2150.  clock_ctx.moveTo(x1,y1);\
  2151.  clock_ctx.lineTo(x2,y2);\
  2152. };\
  2153. for(var p = 1; p <= 60 ; p++){\
  2154.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  2155.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  2156.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2157.  clock_ctx.moveTo(x1,y1);\
  2158.  clock_ctx.lineTo(x2,y2);\
  2159. };\
  2160. clock_ctx.closePath();\
  2161. clock_ctx.stroke();\
  2162. break;\
  2163. case 1:\
  2164. 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;\
  2165. case 2:\
  2166. 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);};\
  2167. clock_ctx.beginPath();\
  2168. for(var p = 1; p <= 12 ; p++){\
  2169.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 12));\
  2170.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 12));\
  2171.  x1 = 0.9*angle_cos;y1 = 0.9*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2172.  clock_ctx.moveTo(x1,y1);\
  2173.  clock_ctx.lineTo(x2,y2);\
  2174. };\
  2175. for(var p = 1; p <= 60 ; p++){\
  2176.  angle_cos = this.radius*(Math.cos(p * (Math.PI * 2) / 60));\
  2177.  angle_sin = this.radius*(Math.sin(p * (Math.PI * 2) / 60));\
  2178.  x1 = 0.95*angle_cos;y1 = 0.95*angle_sin;x2 = angle_cos;y2 = angle_sin;\
  2179.  clock_ctx.moveTo(x1,y1);\
  2180.  clock_ctx.lineTo(x2,y2);\
  2181. };\
  2182. clock_ctx.closePath();\
  2183. clock_ctx.stroke();\
  2184. break;\
  2185. };\
  2186. angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
  2187. clock_ctx.rotate(angle);\
  2188. clock_ctx.beginPath();\
  2189. clock_ctx.moveTo(-3, -2);\
  2190. clock_ctx.lineTo(-3, 2);\
  2191. clock_ctx.lineTo(this.radius * 0.6, 1);\
  2192. clock_ctx.lineTo(this.radius  * 0.6, -1);\
  2193. clock_ctx.fillStyle = this.H_color;\
  2194. clock_ctx.fill();\
  2195. clock_ctx.rotate(-angle);\
  2196. angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
  2197. clock_ctx.rotate(angle);\
  2198. clock_ctx.beginPath();\
  2199. clock_ctx.moveTo(-3, -2);\
  2200. clock_ctx.lineTo(-3, 2);\
  2201. clock_ctx.lineTo(this.radius  * 0.8, 1);\
  2202. clock_ctx.lineTo(this.radius  * 0.8, -1);\
  2203. clock_ctx.fillStyle = this.M_color;\
  2204. clock_ctx.fill();\
  2205. clock_ctx.rotate(-angle);\
  2206. angle = (this.S - 15) * 2 * Math.PI / 60;\
  2207. clock_ctx.rotate(angle);\
  2208. clock_ctx.beginPath();\
  2209. clock_ctx.moveTo(0,0);\
  2210. clock_ctx.lineTo(this.radius  * 0.9, 1);\
  2211. clock_ctx.lineTo(this.radius  * 0.9, -1);\
  2212. clock_ctx.strokeStyle = this.S_color;\
  2213. clock_ctx.stroke();\
  2214. clock_ctx.restore();\
  2215. };",canvas_root_id,CLOCK_CANVAS);
  2216. break;
  2217.  
  2218. case DRAW_LATTICE:
  2219. fprintf(js_include_file,"\n/* draw lattice */\
  2220. 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){\
  2221. var obj;\
  2222. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2223.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2224. }\
  2225. else\
  2226. {\
  2227.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2228. };\
  2229. var ctx = obj.getContext(\"2d\");\
  2230. ctx.save();\
  2231. if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
  2232. var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
  2233. 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;};\
  2234. ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
  2235. var radius = line_width;\
  2236. var x = 0;\
  2237. var y = 0;\
  2238. var x_step_px = xsize/(xmax-xmin);\
  2239. var y_step_px = ysize/(ymax-ymin);\
  2240. var xv1 = dx1*x_step_px;\
  2241. var yv1 = dy1*y_step_px;\
  2242. var xv2 = dx2*x_step_px;\
  2243. var yv2 = dy2*y_step_px;\
  2244. for(var p = 0; p < n1 ;p++){\
  2245.  x = p*xv1 + x0;\
  2246.  y = p*yv1 + y0;\
  2247.  for(var c = 0; c < n2 ; c++){\
  2248.   ctx.beginPath();\
  2249.   ctx.arc(x+c*xv2,y+c*yv2,radius,0,2*Math.PI,false);\
  2250.   ctx.fill();\
  2251.   ctx.stroke();\
  2252.   ctx.closePath();\
  2253.  };\
  2254. };\
  2255. ctx.restore();\
  2256. return;\
  2257. };",canvas_root_id,canvas_root_id,canvas_root_id);
  2258. break;
  2259.  
  2260. case DRAW_XYLOGSCALE:
  2261. fprintf(js_include_file,"\n/* draw xylogscale */\
  2262. 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){\
  2263. var obj;\
  2264. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2265.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2266. }\
  2267. else\
  2268. {\
  2269.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2270. };\
  2271. var ctx = obj.getContext(\"2d\");\
  2272. ctx.clearRect(0,0,xsize,ysize);\
  2273. ctx.save();\
  2274. var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
  2275. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2276. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2277. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2278. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2279. if(use_axis_numbering != -1){\
  2280.  ctx.font = font_family;\
  2281.  xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
  2282.  ymarge = parseInt(1.5*font_size);\
  2283.  ctx.save();\
  2284.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2285.  ctx.rect(0,0,xmarge,ysize);\
  2286.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2287.  ctx.fill();\
  2288.  ctx.restore();\
  2289. }else{xmarge = 0;ymarge = 0;};\
  2290. if( typeof(xaxislabel) !== 'undefined' ){\
  2291.  ctx.save();\
  2292.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2293.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2294.  corr =  ctx.measureText(xaxislabel).width;\
  2295.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2296.  ctx.restore();\
  2297. };\
  2298. if( typeof(yaxislabel) !== 'undefined' ){\
  2299.  ctx.save();\
  2300.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2301.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2302.  corr = ctx.measureText(yaxislabel).width;\
  2303.  ctx.translate(xmarge+font_size,corr+font_size);\
  2304.  ctx.rotate(-0.5*Math.PI);\
  2305.  ctx.fillText(yaxislabel,0,0);\
  2306.  ctx.restore();\
  2307. };\
  2308. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2309. ctx.lineWidth = line_width;\
  2310. for(var p = x_min; p <= x_max ; p++){\
  2311.  num = Math.pow(xlogbase,p);\
  2312.  for(var i = 1 ; i < xlogbase ; i++){\
  2313.   x_e = x2px(i*num);\
  2314.   if( i == 1 ){\
  2315.    ctx.lineWidth = line_width;\
  2316.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2317.    if( use_axis_numbering != -1 && p > x_min){\
  2318.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2319.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2320.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2321.    };\
  2322.   }else{\
  2323.    ctx.lineWidth = 0.2*line_width;\
  2324.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2325.   };\
  2326.   if( x_e >= xmarge ){\
  2327.    ctx.beginPath();\
  2328.    ctx.moveTo(x_e,0);\
  2329.    ctx.lineTo(x_e,ysize - ymarge);\
  2330.    ctx.stroke();\
  2331.    ctx.closePath();\
  2332.   };\
  2333.  };\
  2334. };\
  2335. for(var p = y_min; p <= y_max ; p++){\
  2336.  num = Math.pow(ylogbase,p);\
  2337.  for(var i = 1 ; i < ylogbase ; i++){\
  2338.   y_e = y2px(i*num);\
  2339.   if( i == 1 ){\
  2340.    ctx.lineWidth = line_width;\
  2341.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2342.    if( use_axis_numbering != -1 && p > y_min){\
  2343.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2344.    };\
  2345.   }else{\
  2346.    ctx.lineWidth = 0.2*line_width;\
  2347.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2348.   };\
  2349.   ctx.beginPath();\
  2350.   ctx.moveTo(xmarge,y_e);\
  2351.   ctx.lineTo(xsize,y_e);\
  2352.   ctx.stroke();\
  2353.   ctx.closePath();\
  2354.  };\
  2355. };\
  2356. ctx.restore();\
  2357. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2358. break;
  2359.  
  2360. case DRAW_XLOGSCALE:
  2361. fprintf(js_include_file,"\n/* draw xlogscale */\
  2362. 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){\
  2363. var obj;\
  2364. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2365.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2366. }\
  2367. else\
  2368. {\
  2369.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2370. };\
  2371. var ctx = obj.getContext(\"2d\");\
  2372. ctx.clearRect(0,0,xsize,ysize);\
  2373. ctx.save();\
  2374. ctx.lineWidth = line_width;\
  2375. var prec = Math.log(precision)/Math.log(10);\
  2376. var x_min = Math.log(xmin)/Math.log(xlogbase);\
  2377. var x_max = Math.log(xmax)/Math.log(xlogbase);\
  2378. var y_min = 0;var y_max = ysize;var x_e;var corr;\
  2379. var xtxt;var ytxt;var num;var xmarge;var ymarge;\
  2380. if(use_axis_numbering != -1){\
  2381.  ctx.font = font_family;\
  2382.  xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
  2383.  ymarge = parseInt(1.5*font_size);\
  2384.  ctx.save();\
  2385.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2386.  ctx.rect(0,0,xmarge,ysize);\
  2387.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2388.  ctx.fill();\
  2389.  ctx.restore();\
  2390. }else{xmarge = 0;ymarge = 0;};\
  2391. if( typeof(xaxislabel) !== 'undefined' ){\
  2392.  ctx.save();\
  2393.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2394.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2395.  corr =  ctx.measureText(xaxislabel).width;\
  2396.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2397.  ctx.restore();\
  2398. };\
  2399. if( typeof(yaxislabel) !== 'undefined' ){\
  2400.  ctx.save();\
  2401.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2402.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2403.  corr = ctx.measureText(yaxislabel).width;\
  2404.  ctx.translate(xmarge+font_size,corr+font_size);\
  2405.  ctx.rotate(-0.5*Math.PI);\
  2406.  ctx.fillText(yaxislabel,0,0);\
  2407.  ctx.restore();\
  2408. };\
  2409. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2410. ctx.lineWidth = line_width;\
  2411. for(var p = x_min; p <= x_max ; p++){\
  2412.  num = Math.pow(xlogbase,p);\
  2413.  for(var i = 1 ; i < xlogbase ; i++){\
  2414.   x_e = x2px(i*num);\
  2415.   if( i == 1 ){\
  2416.     ctx.lineWidth = line_width;\
  2417.     ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2418.    if( use_axis_numbering != -1 && p > x_min ){\
  2419.      xtxt = xlogbase+'^'+p.toFixed(0);\
  2420.      corr = 0.5*(ctx.measureText(xtxt).width);\
  2421.      ctx.fillText(xtxt,x_e - corr,ysize - 4);\
  2422.    };\
  2423.   }else{\
  2424.    ctx.lineWidth = 0.2*line_width;\
  2425.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2426.   };\
  2427.   if( x_e >= xmarge ){\
  2428.    ctx.beginPath();\
  2429.    ctx.moveTo(x_e,0);\
  2430.    ctx.lineTo(x_e,ysize - ymarge);\
  2431.    ctx.stroke();\
  2432.    ctx.closePath();\
  2433.   };\
  2434.  };\
  2435. };\
  2436. var stepy = Math.abs(y2px(ymajor) - y2px(0));\
  2437. var minor_step = stepy / yminor;\
  2438. for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
  2439.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2440.  ctx.lineWidth = line_width;\
  2441.  ctx.beginPath();\
  2442.  ctx.moveTo(xmarge,y);\
  2443.  ctx.lineTo(xsize,y);\
  2444.  ctx.stroke();\
  2445.  ctx.closePath();\
  2446.  if( use_axis_numbering != -1){\
  2447.   ytxt = (px2y(y)).toFixed(prec);\
  2448.   ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
  2449.  };\
  2450.  for(var dy = 1 ; dy < yminor ; dy++){\
  2451.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2452.   ctx.lineWidth = 0.2*line_width;\
  2453.   ctx.beginPath();\
  2454.   ctx.moveTo(xmarge,y+dy*minor_step);\
  2455.   ctx.lineTo(xsize,y+dy*minor_step);\
  2456.   ctx.stroke();\
  2457.   ctx.closePath();\
  2458.  };\
  2459. };\
  2460. ctx.restore();\
  2461. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2462. break;
  2463.  
  2464. case DRAW_YLOGSCALE:
  2465. fprintf(js_include_file,"\n/* draw ylogscale */\
  2466. 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){\
  2467. var obj;\
  2468. if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
  2469.  obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
  2470. }\
  2471. else\
  2472. {\
  2473.  obj = create_canvas%d(canvas_type,xsize,ysize);\
  2474. };\
  2475. var ctx = obj.getContext(\"2d\");\
  2476. ctx.clearRect(0,0,xsize,ysize);\
  2477. ctx.save();\
  2478. ctx.lineWidth = line_width;\
  2479. var y_min = Math.log(ymin)/Math.log(ylogbase);\
  2480. var y_max = Math.log(ymax)/Math.log(ylogbase);\
  2481. var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
  2482. if(use_axis_numbering != -1){\
  2483.  ctx.font = font_family;\
  2484.  xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
  2485.  ymarge = 2*font_size;\
  2486.  ctx.save();\
  2487.  ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
  2488.  ctx.rect(0,0,xmarge,ysize);\
  2489.  ctx.rect(0,ysize-ymarge,xsize,ysize);\
  2490.  ctx.fill();\
  2491.  ctx.restore();\
  2492. }else{xmarge = 0;ymarge = 0;};\
  2493. if( typeof(xaxislabel) !== 'undefined' ){\
  2494.  ctx.save();\
  2495.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2496.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2497.  corr =  ctx.measureText(xaxislabel).width;\
  2498.  ctx.fillText(xaxislabel,xsize - 1.5*corr,ysize - 2*font_size);\
  2499.  ctx.restore();\
  2500. };\
  2501. if( typeof(yaxislabel) !== 'undefined' ){\
  2502.  ctx.save();\
  2503.  ctx.font = \"italic \"+font_size+\"px Arial\";\
  2504.  ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2505.  corr = ctx.measureText(yaxislabel).width;\
  2506.  ctx.translate(xmarge+font_size,corr+font_size);\
  2507.  ctx.rotate(-0.5*Math.PI);\
  2508.  ctx.fillText(yaxislabel,0,0);\
  2509.  ctx.restore();\
  2510. };\
  2511. ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
  2512. ctx.lineWidth = line_width;\
  2513. for(var p = y_min; p <= y_max ; p++){\
  2514.  num = Math.pow(ylogbase,p);\
  2515.  for(var i = 1 ; i < ylogbase ; i++){\
  2516.   y_e = y2px(i*num);\
  2517.   if( i == 1 ){\
  2518.    ctx.lineWidth = line_width;\
  2519.    ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2520.    if( use_axis_numbering != -1 && p > y_min){\
  2521.     ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
  2522.    };\
  2523.   }else{\
  2524.    ctx.lineWidth = 0.2*line_width;\
  2525.    ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2526.   };\
  2527.   ctx.beginPath();\
  2528.   ctx.moveTo(xmarge,y_e);\
  2529.   ctx.lineTo(xsize,y_e);\
  2530.   ctx.stroke();\
  2531.   ctx.closePath();\
  2532.  };\
  2533. };\
  2534. var stepx = Math.abs(x2px(xmajor) - x2px(0));\
  2535. var minor_step = stepx / xminor;\
  2536. var prec = Math.log(precision)/Math.log(10);\
  2537. var xtxt;var corr;var flip = 0;\
  2538. for(var x = stepx ; x < xsize ; x = x + stepx){\
  2539.  ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
  2540.  ctx.lineWidth = line_width;\
  2541.  ctx.beginPath();\
  2542.  ctx.moveTo(x,ysize-ymarge);\
  2543.  ctx.lineTo(x,0);\
  2544.  ctx.stroke();\
  2545.  ctx.closePath();\
  2546.  if( use_axis_numbering != -1){\
  2547.   xtxt = (px2x(x)).toFixed(prec);\
  2548.   corr = 0.5*(ctx.measureText(xtxt).width);\
  2549.   if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
  2550.   flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
  2551.  };\
  2552.  for(var dx = 1 ; dx < xminor ; dx++){\
  2553.   ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
  2554.   ctx.lineWidth = 0.2*line_width;\
  2555.   ctx.beginPath();\
  2556.   ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
  2557.   ctx.lineTo(x+dx*minor_step,0);\
  2558.   ctx.stroke();\
  2559.   ctx.closePath();\
  2560.  };\
  2561. };\
  2562. ctx.restore();\
  2563. };",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
  2564. break;
  2565.  
  2566. case ADD_USER_INPUTS:
  2567. fprintf(js_include_file,"\n/* add_input_xy */\
  2568. function add_input_xy(){\
  2569. if( wims_status == \"done\" ){return;};\
  2570. var tooltip_div = document.getElementById(\"tooltip_placeholder_div%d\");\
  2571. var input_xy_div = document.createElement('div');\
  2572. input_xy_div.id = \"input_xy_div\";\
  2573. tooltip_div.appendChild(input_xy_div);",canvas_root_id);
  2574.  
  2575. if(strstr(draw_type,"polyline") != NULL || strstr(draw_type,"point") != NULL || strstr(draw_type,"cross") != NULL ){ /* ( input_x : input_y )*/
  2576. type=1;
  2577. 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);
  2578. }else{
  2579. if(strstr(draw_type,"circle") != NULL ){/* M: (input_x :input_y) R:input_r*/
  2580. type=2;
  2581. 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);
  2582. }else{
  2583. type=3;
  2584. if(strstr(draw_type,"segment") != NULL  ||  strstr(draw_type,"line") != NULL  ||  strstr(draw_type,"arrow") != NULL  ){  /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) */
  2585. 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);
  2586. }else{
  2587. type=4;
  2588. if(strstr(draw_type,"triang") != NULL ){ /* ( input_x1 : input_y1) --- ( input_x2 : input_y2) --- ( input_x3 : input_y3) */
  2589. 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);
  2590. }else{
  2591. type=5;
  2592. if(strstr(draw_type,"text") != NULL ){ /*Text: input_r ( input_x1 : input_y1)  */
  2593. 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);
  2594. }else{canvas_error("command 'userinput' or 'userinput_xy' is not supported for your 'userdraw' type...");
  2595. }}}}}
  2596.  
  2597. fprintf(js_include_file,"\
  2598. var update_button = document.getElementById(\"update_button\");\
  2599. var delete_button = document.getElementById(\"delete_button\");\
  2600. update_button.addEventListener(\"mousedown\",function(e){update_me();redraw_userdraw();return;},false);\
  2601. delete_button.addEventListener(\"mousedown\",function(e){remove_last();return;},false);\
  2602. };add_input_xy();");
  2603.  
  2604. switch(type){
  2605.  case 1:
  2606. fprintf(js_include_file,"\n/* add_input_xy */\
  2607. function update_me(){\
  2608. var x = safe_eval(document.getElementById('userinput_x').value);\
  2609. var y = safe_eval(document.getElementById('userinput_y').value);\
  2610. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2611. return;\
  2612. };");break;
  2613.  case 2:
  2614. fprintf(js_include_file,"\n/* add_input_xy */\
  2615. function update_me(){\
  2616. var x = safe_eval(document.getElementById('userinput_x').value);\
  2617. var y = safe_eval(document.getElementById('userinput_y').value);\
  2618. var r = safe_eval(document.getElementById('userinput_r').value);\
  2619. r = scale_x_radius(r);\
  2620. userdraw_radius.push(r);userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2621. return;\
  2622. };");break;
  2623.  case 3:
  2624. fprintf(js_include_file,"\n/* add_input_xy */\
  2625. function update_me(){\
  2626. var x,y;\
  2627. for(var p=1; p<3;p++){\
  2628.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2629.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2630.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2631. };\
  2632. return;\
  2633. };");
  2634.  break;
  2635.  case 4:
  2636. fprintf(js_include_file,"\n/* add_input_xy */\
  2637. function update_me(){\
  2638. var x,y;\
  2639. for(var p=1; p<4;p++){\
  2640.  x = safe_eval(document.getElementById('userinput_x'+p).value);\
  2641.  y = safe_eval(document.getElementById('userinput_y'+p).value);\
  2642.  userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));\
  2643. };\
  2644. return;\
  2645. };");
  2646.  break;
  2647.  case 5:
  2648.  /* a inputfield with 'id=userdraw_text_abc' is provided by command 'userdraw text,color'*/
  2649. fprintf(js_include_file,"\n/* add_input_xy */\
  2650. function update_me(){\
  2651. var x = safe_eval(document.getElementById('userinput_x').value);\
  2652. var y = safe_eval(document.getElementById('userinput_y').value);\
  2653. var txt = conv_to_unicode(document.getElementById('userdraw_text_abc').value);\
  2654. userdraw_x.push(x2px(x));userdraw_y.push(y2px(y));userdraw_text.push(txt.replace(/\\\\/g,' '));\
  2655. return;\
  2656. };");
  2657.  break;
  2658.  default: canvas_error("hmmm, I've no idea...");break;
  2659. }
  2660.  
  2661. break;
  2662.  
  2663. default:break;
  2664.    }
  2665.   }
  2666.  }
  2667.   return;
  2668. }
  2669.