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Commit 2373eda13dac1dc4f3205ee1affdd509a54c00fc

Authored by Edmar Moretti
1 parent f3c09217
Exists in master and in 7 other branches composer, doc-root, docker, guia, licenca, readme, unmaintened

incluida biblioteca wz_jsgraphics.js para manipulação de SVG (diretório pacotes/svg)

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pacotes/svg/wz_jsgraphics.js 0 → 100644
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  1 +/* This notice must be untouched at all times.
  2 +
  3 +wz_jsgraphics.js v. 3.02
  4 +The latest version is available at
  5 +http://www.walterzorn.com
  6 +or http://www.devira.com
  7 +or http://www.walterzorn.de
  8 +
  9 +Copyright (c) 2002-2004 Walter Zorn. All rights reserved.
  10 +Created 3. 11. 2002 by Walter Zorn (Web: http://www.walterzorn.com )
  11 +Last modified: 26. 10. 2007
  12 +
  13 +Performance optimizations for Internet Explorer
  14 +by Thomas Frank and John Holdsworth.
  15 +fillPolygon method implemented by Matthieu Haller.
  16 +
  17 +High Performance JavaScript Graphics Library.
  18 +Provides methods
  19 +- to draw lines, rectangles, ellipses, polygons
  20 + with specifiable line thickness,
  21 +- to fill rectangles, polygons, ellipses and arcs
  22 +- to draw text.
  23 +NOTE: Operations, functions and branching have rather been optimized
  24 +to efficiency and speed than to shortness of source code.
  25 +
  26 +LICENSE: LGPL
  27 +
  28 +This library is free software; you can redistribute it and/or
  29 +modify it under the terms of the GNU Lesser General Public
  30 +License (LGPL) as published by the Free Software Foundation; either
  31 +version 2.1 of the License, or (at your option) any later version.
  32 +
  33 +This library is distributed in the hope that it will be useful,
  34 +but WITHOUT ANY WARRANTY; without even the implied warranty of
  35 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  36 +Lesser General Public License for more details.
  37 +
  38 +You should have received a copy of the GNU Lesser General Public
  39 +License along with this library; if not, write to the Free Software
  40 +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,
  41 +or see http://www.gnu.org/copyleft/lesser.html
  42 +*/
  43 +
  44 +
  45 +var jg_ok, jg_ie, jg_fast, jg_dom, jg_moz;
  46 +
  47 +
  48 +function _chkDHTM(x, i)
  49 +{
  50 + x = document.body || null;
  51 + jg_ie = x && typeof x.insertAdjacentHTML != "undefined" && document.createElement;
  52 + jg_dom = (x && !jg_ie &&
  53 + typeof x.appendChild != "undefined" &&
  54 + typeof document.createRange != "undefined" &&
  55 + typeof (i = document.createRange()).setStartBefore != "undefined" &&
  56 + typeof i.createContextualFragment != "undefined");
  57 + jg_fast = jg_ie && document.all && !window.opera;
  58 + jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined";
  59 + jg_ok = !!(jg_ie || jg_dom);
  60 +}
  61 +
  62 +function _pntCnvDom()
  63 +{
  64 + var x = this.wnd.document.createRange();
  65 + x.setStartBefore(this.cnv);
  66 + x = x.createContextualFragment(jg_fast? this._htmRpc() : this.htm);
  67 + if(this.cnv) this.cnv.appendChild(x);
  68 + this.htm = "";
  69 +}
  70 +
  71 +function _pntCnvIe()
  72 +{
  73 + if(this.cnv) this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this._htmRpc() : this.htm);
  74 + this.htm = "";
  75 +}
  76 +
  77 +function _pntDoc()
  78 +{
  79 + this.wnd.document.write(jg_fast? this._htmRpc() : this.htm);
  80 + this.htm = '';
  81 +}
  82 +
  83 +function _pntN()
  84 +{
  85 + ;
  86 +}
  87 +
  88 +function _mkDiv(x, y, w, h)
  89 +{
  90 + this.htm += '<div style="position:absolute;'+
  91 + 'left:' + x + 'px;'+
  92 + 'top:' + y + 'px;'+
  93 + 'width:' + w + 'px;'+
  94 + 'height:' + h + 'px;'+
  95 + 'clip:rect(0,'+w+'px,'+h+'px,0);'+
  96 + 'background-color:' + this.color +
  97 + (!jg_moz? ';overflow:hidden' : '')+
  98 + ';"><\/div>';
  99 +}
  100 +
  101 +function _mkDivIe(x, y, w, h)
  102 +{
  103 + this.htm += '%%'+this.color+';'+x+';'+y+';'+w+';'+h+';';
  104 +}
  105 +
  106 +function _mkDivPrt(x, y, w, h)
  107 +{
  108 + this.htm += '<div style="position:absolute;'+
  109 + 'border-left:' + w + 'px solid ' + this.color + ';'+
  110 + 'left:' + x + 'px;'+
  111 + 'top:' + y + 'px;'+
  112 + 'width:0px;'+
  113 + 'height:' + h + 'px;'+
  114 + 'clip:rect(0,'+w+'px,'+h+'px,0);'+
  115 + 'background-color:' + this.color +
  116 + (!jg_moz? ';overflow:hidden' : '')+
  117 + ';"><\/div>';
  118 +}
  119 +
  120 +var _regex = /%%([^;]+);([^;]+);([^;]+);([^;]+);([^;]+);/g;
  121 +function _htmRpc()
  122 +{
  123 + return this.htm.replace(
  124 + _regex,
  125 + '<div style="overflow:hidden;position:absolute;background-color:'+
  126 + '$1;left:$2;top:$3;width:$4;height:$5"></div>\n');
  127 +}
  128 +
  129 +function _htmPrtRpc()
  130 +{
  131 + return this.htm.replace(
  132 + _regex,
  133 + '<div style="overflow:hidden;position:absolute;background-color:'+
  134 + '$1;left:$2;top:$3;width:$4;height:$5;border-left:$4px solid $1"></div>\n');
  135 +}
  136 +
  137 +function _mkLin(x1, y1, x2, y2)
  138 +{
  139 + if(x1 > x2)
  140 + {
  141 + var _x2 = x2;
  142 + var _y2 = y2;
  143 + x2 = x1;
  144 + y2 = y1;
  145 + x1 = _x2;
  146 + y1 = _y2;
  147 + }
  148 + var dx = x2-x1, dy = Math.abs(y2-y1),
  149 + x = x1, y = y1,
  150 + yIncr = (y1 > y2)? -1 : 1;
  151 +
  152 + if(dx >= dy)
  153 + {
  154 + var pr = dy<<1,
  155 + pru = pr - (dx<<1),
  156 + p = pr-dx,
  157 + ox = x;
  158 + while(dx > 0)
  159 + {--dx;
  160 + ++x;
  161 + if(p > 0)
  162 + {
  163 + this._mkDiv(ox, y, x-ox, 1);
  164 + y += yIncr;
  165 + p += pru;
  166 + ox = x;
  167 + }
  168 + else p += pr;
  169 + }
  170 + this._mkDiv(ox, y, x2-ox+1, 1);
  171 + }
  172 +
  173 + else
  174 + {
  175 + var pr = dx<<1,
  176 + pru = pr - (dy<<1),
  177 + p = pr-dy,
  178 + oy = y;
  179 + if(y2 <= y1)
  180 + {
  181 + while(dy > 0)
  182 + {--dy;
  183 + if(p > 0)
  184 + {
  185 + this._mkDiv(x++, y, 1, oy-y+1);
  186 + y += yIncr;
  187 + p += pru;
  188 + oy = y;
  189 + }
  190 + else
  191 + {
  192 + y += yIncr;
  193 + p += pr;
  194 + }
  195 + }
  196 + this._mkDiv(x2, y2, 1, oy-y2+1);
  197 + }
  198 + else
  199 + {
  200 + while(dy > 0)
  201 + {--dy;
  202 + y += yIncr;
  203 + if(p > 0)
  204 + {
  205 + this._mkDiv(x++, oy, 1, y-oy);
  206 + p += pru;
  207 + oy = y;
  208 + }
  209 + else p += pr;
  210 + }
  211 + this._mkDiv(x2, oy, 1, y2-oy+1);
  212 + }
  213 + }
  214 +}
  215 +
  216 +function _mkLin2D(x1, y1, x2, y2)
  217 +{
  218 + if(x1 > x2)
  219 + {
  220 + var _x2 = x2;
  221 + var _y2 = y2;
  222 + x2 = x1;
  223 + y2 = y1;
  224 + x1 = _x2;
  225 + y1 = _y2;
  226 + }
  227 + var dx = x2-x1, dy = Math.abs(y2-y1),
  228 + x = x1, y = y1,
  229 + yIncr = (y1 > y2)? -1 : 1;
  230 +
  231 + var s = this.stroke;
  232 + if(dx >= dy)
  233 + {
  234 + if(dx > 0 && s-3 > 0)
  235 + {
  236 + var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx;
  237 + _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;
  238 + }
  239 + else var _s = s;
  240 + var ad = Math.ceil(s/2);
  241 +
  242 + var pr = dy<<1,
  243 + pru = pr - (dx<<1),
  244 + p = pr-dx,
  245 + ox = x;
  246 + while(dx > 0)
  247 + {--dx;
  248 + ++x;
  249 + if(p > 0)
  250 + {
  251 + this._mkDiv(ox, y, x-ox+ad, _s);
  252 + y += yIncr;
  253 + p += pru;
  254 + ox = x;
  255 + }
  256 + else p += pr;
  257 + }
  258 + this._mkDiv(ox, y, x2-ox+ad+1, _s);
  259 + }
  260 +
  261 + else
  262 + {
  263 + if(s-3 > 0)
  264 + {
  265 + var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy;
  266 + _s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;
  267 + }
  268 + else var _s = s;
  269 + var ad = Math.round(s/2);
  270 +
  271 + var pr = dx<<1,
  272 + pru = pr - (dy<<1),
  273 + p = pr-dy,
  274 + oy = y;
  275 + if(y2 <= y1)
  276 + {
  277 + ++ad;
  278 + while(dy > 0)
  279 + {--dy;
  280 + if(p > 0)
  281 + {
  282 + this._mkDiv(x++, y, _s, oy-y+ad);
  283 + y += yIncr;
  284 + p += pru;
  285 + oy = y;
  286 + }
  287 + else
  288 + {
  289 + y += yIncr;
  290 + p += pr;
  291 + }
  292 + }
  293 + this._mkDiv(x2, y2, _s, oy-y2+ad);
  294 + }
  295 + else
  296 + {
  297 + while(dy > 0)
  298 + {--dy;
  299 + y += yIncr;
  300 + if(p > 0)
  301 + {
  302 + this._mkDiv(x++, oy, _s, y-oy+ad);
  303 + p += pru;
  304 + oy = y;
  305 + }
  306 + else p += pr;
  307 + }
  308 + this._mkDiv(x2, oy, _s, y2-oy+ad+1);
  309 + }
  310 + }
  311 +}
  312 +
  313 +function _mkLinDott(x1, y1, x2, y2)
  314 +{
  315 + if(x1 > x2)
  316 + {
  317 + var _x2 = x2;
  318 + var _y2 = y2;
  319 + x2 = x1;
  320 + y2 = y1;
  321 + x1 = _x2;
  322 + y1 = _y2;
  323 + }
  324 + var dx = x2-x1, dy = Math.abs(y2-y1),
  325 + x = x1, y = y1,
  326 + yIncr = (y1 > y2)? -1 : 1,
  327 + drw = true;
  328 + if(dx >= dy)
  329 + {
  330 + var pr = dy<<1,
  331 + pru = pr - (dx<<1),
  332 + p = pr-dx;
  333 + while(dx > 0)
  334 + {--dx;
  335 + if(drw) this._mkDiv(x, y, 1, 1);
  336 + drw = !drw;
  337 + if(p > 0)
  338 + {
  339 + y += yIncr;
  340 + p += pru;
  341 + }
  342 + else p += pr;
  343 + ++x;
  344 + }
  345 + }
  346 + else
  347 + {
  348 + var pr = dx<<1,
  349 + pru = pr - (dy<<1),
  350 + p = pr-dy;
  351 + while(dy > 0)
  352 + {--dy;
  353 + if(drw) this._mkDiv(x, y, 1, 1);
  354 + drw = !drw;
  355 + y += yIncr;
  356 + if(p > 0)
  357 + {
  358 + ++x;
  359 + p += pru;
  360 + }
  361 + else p += pr;
  362 + }
  363 + }
  364 + if(drw) this._mkDiv(x, y, 1, 1);
  365 +}
  366 +
  367 +function _mkOv(left, top, width, height)
  368 +{
  369 + var a = (++width)>>1, b = (++height)>>1,
  370 + wod = width&1, hod = height&1,
  371 + cx = left+a, cy = top+b,
  372 + x = 0, y = b,
  373 + ox = 0, oy = b,
  374 + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
  375 + st = (aa2>>1)*(1-(b<<1)) + bb2,
  376 + tt = (bb2>>1) - aa2*((b<<1)-1),
  377 + w, h;
  378 + while(y > 0)
  379 + {
  380 + if(st < 0)
  381 + {
  382 + st += bb2*((x<<1)+3);
  383 + tt += bb4*(++x);
  384 + }
  385 + else if(tt < 0)
  386 + {
  387 + st += bb2*((x<<1)+3) - aa4*(y-1);
  388 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  389 + w = x-ox;
  390 + h = oy-y;
  391 + if((w&2) && (h&2))
  392 + {
  393 + this._mkOvQds(cx, cy, x-2, y+2, 1, 1, wod, hod);
  394 + this._mkOvQds(cx, cy, x-1, y+1, 1, 1, wod, hod);
  395 + }
  396 + else this._mkOvQds(cx, cy, x-1, oy, w, h, wod, hod);
  397 + ox = x;
  398 + oy = y;
  399 + }
  400 + else
  401 + {
  402 + tt -= aa2*((y<<1)-3);
  403 + st -= aa4*(--y);
  404 + }
  405 + }
  406 + w = a-ox+1;
  407 + h = (oy<<1)+hod;
  408 + y = cy-oy;
  409 + this._mkDiv(cx-a, y, w, h);
  410 + this._mkDiv(cx+ox+wod-1, y, w, h);
  411 +}
  412 +
  413 +function _mkOv2D(left, top, width, height)
  414 +{
  415 + var s = this.stroke;
  416 + width += s+1;
  417 + height += s+1;
  418 + var a = width>>1, b = height>>1,
  419 + wod = width&1, hod = height&1,
  420 + cx = left+a, cy = top+b,
  421 + x = 0, y = b,
  422 + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
  423 + st = (aa2>>1)*(1-(b<<1)) + bb2,
  424 + tt = (bb2>>1) - aa2*((b<<1)-1);
  425 +
  426 + if(s-4 < 0 && (!(s-2) || width-51 > 0 && height-51 > 0))
  427 + {
  428 + var ox = 0, oy = b,
  429 + w, h,
  430 + pxw;
  431 + while(y > 0)
  432 + {
  433 + if(st < 0)
  434 + {
  435 + st += bb2*((x<<1)+3);
  436 + tt += bb4*(++x);
  437 + }
  438 + else if(tt < 0)
  439 + {
  440 + st += bb2*((x<<1)+3) - aa4*(y-1);
  441 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  442 + w = x-ox;
  443 + h = oy-y;
  444 +
  445 + if(w-1)
  446 + {
  447 + pxw = w+1+(s&1);
  448 + h = s;
  449 + }
  450 + else if(h-1)
  451 + {
  452 + pxw = s;
  453 + h += 1+(s&1);
  454 + }
  455 + else pxw = h = s;
  456 + this._mkOvQds(cx, cy, x-1, oy, pxw, h, wod, hod);
  457 + ox = x;
  458 + oy = y;
  459 + }
  460 + else
  461 + {
  462 + tt -= aa2*((y<<1)-3);
  463 + st -= aa4*(--y);
  464 + }
  465 + }
  466 + this._mkDiv(cx-a, cy-oy, s, (oy<<1)+hod);
  467 + this._mkDiv(cx+a+wod-s, cy-oy, s, (oy<<1)+hod);
  468 + }
  469 +
  470 + else
  471 + {
  472 + var _a = (width-(s<<1))>>1,
  473 + _b = (height-(s<<1))>>1,
  474 + _x = 0, _y = _b,
  475 + _aa2 = (_a*_a)<<1, _aa4 = _aa2<<1, _bb2 = (_b*_b)<<1, _bb4 = _bb2<<1,
  476 + _st = (_aa2>>1)*(1-(_b<<1)) + _bb2,
  477 + _tt = (_bb2>>1) - _aa2*((_b<<1)-1),
  478 +
  479 + pxl = new Array(),
  480 + pxt = new Array(),
  481 + _pxb = new Array();
  482 + pxl[0] = 0;
  483 + pxt[0] = b;
  484 + _pxb[0] = _b-1;
  485 + while(y > 0)
  486 + {
  487 + if(st < 0)
  488 + {
  489 + pxl[pxl.length] = x;
  490 + pxt[pxt.length] = y;
  491 + st += bb2*((x<<1)+3);
  492 + tt += bb4*(++x);
  493 + }
  494 + else if(tt < 0)
  495 + {
  496 + pxl[pxl.length] = x;
  497 + st += bb2*((x<<1)+3) - aa4*(y-1);
  498 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  499 + pxt[pxt.length] = y;
  500 + }
  501 + else
  502 + {
  503 + tt -= aa2*((y<<1)-3);
  504 + st -= aa4*(--y);
  505 + }
  506 +
  507 + if(_y > 0)
  508 + {
  509 + if(_st < 0)
  510 + {
  511 + _st += _bb2*((_x<<1)+3);
  512 + _tt += _bb4*(++_x);
  513 + _pxb[_pxb.length] = _y-1;
  514 + }
  515 + else if(_tt < 0)
  516 + {
  517 + _st += _bb2*((_x<<1)+3) - _aa4*(_y-1);
  518 + _tt += _bb4*(++_x) - _aa2*(((_y--)<<1)-3);
  519 + _pxb[_pxb.length] = _y-1;
  520 + }
  521 + else
  522 + {
  523 + _tt -= _aa2*((_y<<1)-3);
  524 + _st -= _aa4*(--_y);
  525 + _pxb[_pxb.length-1]--;
  526 + }
  527 + }
  528 + }
  529 +
  530 + var ox = -wod, oy = b,
  531 + _oy = _pxb[0],
  532 + l = pxl.length,
  533 + w, h;
  534 + for(var i = 0; i < l; i++)
  535 + {
  536 + if(typeof _pxb[i] != "undefined")
  537 + {
  538 + if(_pxb[i] < _oy || pxt[i] < oy)
  539 + {
  540 + x = pxl[i];
  541 + this._mkOvQds(cx, cy, x, oy, x-ox, oy-_oy, wod, hod);
  542 + ox = x;
  543 + oy = pxt[i];
  544 + _oy = _pxb[i];
  545 + }
  546 + }
  547 + else
  548 + {
  549 + x = pxl[i];
  550 + this._mkDiv(cx-x, cy-oy, 1, (oy<<1)+hod);
  551 + this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);
  552 + ox = x;
  553 + oy = pxt[i];
  554 + }
  555 + }
  556 + this._mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod);
  557 + this._mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);
  558 + }
  559 +}
  560 +
  561 +function _mkOvDott(left, top, width, height)
  562 +{
  563 + var a = (++width)>>1, b = (++height)>>1,
  564 + wod = width&1, hod = height&1, hodu = hod^1,
  565 + cx = left+a, cy = top+b,
  566 + x = 0, y = b,
  567 + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
  568 + st = (aa2>>1)*(1-(b<<1)) + bb2,
  569 + tt = (bb2>>1) - aa2*((b<<1)-1),
  570 + drw = true;
  571 + while(y > 0)
  572 + {
  573 + if(st < 0)
  574 + {
  575 + st += bb2*((x<<1)+3);
  576 + tt += bb4*(++x);
  577 + }
  578 + else if(tt < 0)
  579 + {
  580 + st += bb2*((x<<1)+3) - aa4*(y-1);
  581 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  582 + }
  583 + else
  584 + {
  585 + tt -= aa2*((y<<1)-3);
  586 + st -= aa4*(--y);
  587 + }
  588 + if(drw && y >= hodu) this._mkOvQds(cx, cy, x, y, 1, 1, wod, hod);
  589 + drw = !drw;
  590 + }
  591 +}
  592 +
  593 +function _mkRect(x, y, w, h)
  594 +{
  595 + var s = this.stroke;
  596 + this._mkDiv(x, y, w, s);
  597 + this._mkDiv(x+w, y, s, h);
  598 + this._mkDiv(x, y+h, w+s, s);
  599 + this._mkDiv(x, y+s, s, h-s);
  600 +}
  601 +
  602 +function _mkRectDott(x, y, w, h)
  603 +{
  604 + this.drawLine(x, y, x+w, y);
  605 + this.drawLine(x+w, y, x+w, y+h);
  606 + this.drawLine(x, y+h, x+w, y+h);
  607 + this.drawLine(x, y, x, y+h);
  608 +}
  609 +
  610 +function jsgFont()
  611 +{
  612 + this.PLAIN = 'font-weight:normal;';
  613 + this.BOLD = 'font-weight:bold;';
  614 + this.ITALIC = 'font-style:italic;';
  615 + this.ITALIC_BOLD = this.ITALIC + this.BOLD;
  616 + this.BOLD_ITALIC = this.ITALIC_BOLD;
  617 +}
  618 +var Font = new jsgFont();
  619 +
  620 +function jsgStroke()
  621 +{
  622 + this.DOTTED = -1;
  623 +}
  624 +var Stroke = new jsgStroke();
  625 +
  626 +function jsGraphics(cnv, wnd)
  627 +{
  628 + this.setColor = function(x)
  629 + {
  630 + this.color = x.toLowerCase();
  631 + };
  632 +
  633 + this.setStroke = function(x)
  634 + {
  635 + this.stroke = x;
  636 + if(!(x+1))
  637 + {
  638 + this.drawLine = _mkLinDott;
  639 + this._mkOv = _mkOvDott;
  640 + this.drawRect = _mkRectDott;
  641 + }
  642 + else if(x-1 > 0)
  643 + {
  644 + this.drawLine = _mkLin2D;
  645 + this._mkOv = _mkOv2D;
  646 + this.drawRect = _mkRect;
  647 + }
  648 + else
  649 + {
  650 + this.drawLine = _mkLin;
  651 + this._mkOv = _mkOv;
  652 + this.drawRect = _mkRect;
  653 + }
  654 + };
  655 +
  656 + this.setPrintable = function(arg)
  657 + {
  658 + this.printable = arg;
  659 + if(jg_fast)
  660 + {
  661 + this._mkDiv = _mkDivIe;
  662 + this._htmRpc = arg? _htmPrtRpc : _htmRpc;
  663 + }
  664 + else this._mkDiv = arg? _mkDivPrt : _mkDiv;
  665 + };
  666 +
  667 + this.setFont = function(fam, sz, sty)
  668 + {
  669 + this.ftFam = fam;
  670 + this.ftSz = sz;
  671 + this.ftSty = sty || Font.PLAIN;
  672 + };
  673 +
  674 + this.drawPolyline = this.drawPolyLine = function(x, y)
  675 + {
  676 + for (var i=x.length - 1; i;)
  677 + {--i;
  678 + this.drawLine(x[i], y[i], x[i+1], y[i+1]);
  679 + }
  680 + };
  681 +
  682 + this.fillRect = function(x, y, w, h)
  683 + {
  684 + this._mkDiv(x, y, w, h);
  685 + };
  686 +
  687 + this.drawPolygon = function(x, y)
  688 + {
  689 + this.drawPolyline(x, y);
  690 + this.drawLine(x[x.length-1], y[x.length-1], x[0], y[0]);
  691 + };
  692 +
  693 + this.drawEllipse = this.drawOval = function(x, y, w, h)
  694 + {
  695 + this._mkOv(x, y, w, h);
  696 + };
  697 +
  698 + this.fillEllipse = this.fillOval = function(left, top, w, h)
  699 + {
  700 + var a = w>>1, b = h>>1,
  701 + wod = w&1, hod = h&1,
  702 + cx = left+a, cy = top+b,
  703 + x = 0, y = b, oy = b,
  704 + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
  705 + st = (aa2>>1)*(1-(b<<1)) + bb2,
  706 + tt = (bb2>>1) - aa2*((b<<1)-1),
  707 + xl, dw, dh;
  708 + if(w) while(y > 0)
  709 + {
  710 + if(st < 0)
  711 + {
  712 + st += bb2*((x<<1)+3);
  713 + tt += bb4*(++x);
  714 + }
  715 + else if(tt < 0)
  716 + {
  717 + st += bb2*((x<<1)+3) - aa4*(y-1);
  718 + xl = cx-x;
  719 + dw = (x<<1)+wod;
  720 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  721 + dh = oy-y;
  722 + this._mkDiv(xl, cy-oy, dw, dh);
  723 + this._mkDiv(xl, cy+y+hod, dw, dh);
  724 + oy = y;
  725 + }
  726 + else
  727 + {
  728 + tt -= aa2*((y<<1)-3);
  729 + st -= aa4*(--y);
  730 + }
  731 + }
  732 + this._mkDiv(cx-a, cy-oy, w, (oy<<1)+hod);
  733 + };
  734 +
  735 + this.fillArc = function(iL, iT, iW, iH, fAngA, fAngZ)
  736 + {
  737 + var a = iW>>1, b = iH>>1,
  738 + iOdds = (iW&1) | ((iH&1) << 16),
  739 + cx = iL+a, cy = iT+b,
  740 + x = 0, y = b, ox = x, oy = y,
  741 + aa2 = (a*a)<<1, aa4 = aa2<<1, bb2 = (b*b)<<1, bb4 = bb2<<1,
  742 + st = (aa2>>1)*(1-(b<<1)) + bb2,
  743 + tt = (bb2>>1) - aa2*((b<<1)-1),
  744 + // Vars for radial boundary lines
  745 + xEndA, yEndA, xEndZ, yEndZ,
  746 + iSects = (1 << (Math.floor((fAngA %= 360.0)/180.0) << 3))
  747 + | (2 << (Math.floor((fAngZ %= 360.0)/180.0) << 3))
  748 + | ((fAngA >= fAngZ) << 16),
  749 + aBndA = new Array(b+1), aBndZ = new Array(b+1);
  750 +
  751 + // Set up radial boundary lines
  752 + fAngA *= Math.PI/180.0;
  753 + fAngZ *= Math.PI/180.0;
  754 + xEndA = cx+Math.round(a*Math.cos(fAngA));
  755 + yEndA = cy+Math.round(-b*Math.sin(fAngA));
  756 + _mkLinVirt(aBndA, cx, cy, xEndA, yEndA);
  757 + xEndZ = cx+Math.round(a*Math.cos(fAngZ));
  758 + yEndZ = cy+Math.round(-b*Math.sin(fAngZ));
  759 + _mkLinVirt(aBndZ, cx, cy, xEndZ, yEndZ);
  760 +
  761 + while(y > 0)
  762 + {
  763 + if(st < 0) // Advance x
  764 + {
  765 + st += bb2*((x<<1)+3);
  766 + tt += bb4*(++x);
  767 + }
  768 + else if(tt < 0) // Advance x and y
  769 + {
  770 + st += bb2*((x<<1)+3) - aa4*(y-1);
  771 + ox = x;
  772 + tt += bb4*(++x) - aa2*(((y--)<<1)-3);
  773 + this._mkArcDiv(ox, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects);
  774 + oy = y;
  775 + }
  776 + else // Advance y
  777 + {
  778 + tt -= aa2*((y<<1)-3);
  779 + st -= aa4*(--y);
  780 + if(y && (aBndA[y] != aBndA[y-1] || aBndZ[y] != aBndZ[y-1]))
  781 + {
  782 + this._mkArcDiv(x, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects);
  783 + ox = x;
  784 + oy = y;
  785 + }
  786 + }
  787 + }
  788 + this._mkArcDiv(x, 0, oy, cx, cy, iOdds, aBndA, aBndZ, iSects);
  789 + if(iOdds >> 16) // Odd height
  790 + {
  791 + if(iSects >> 16) // Start-angle > end-angle
  792 + {
  793 + var xl = (yEndA <= cy || yEndZ > cy)? (cx - x) : cx;
  794 + this._mkDiv(xl, cy, x + cx - xl + (iOdds & 0xffff), 1);
  795 + }
  796 + else if((iSects & 0x01) && yEndZ > cy)
  797 + this._mkDiv(cx - x, cy, x, 1);
  798 + }
  799 + };
  800 +
  801 +/* fillPolygon method, implemented by Matthieu Haller.
  802 +This javascript function is an adaptation of the gdImageFilledPolygon for Walter Zorn lib.
  803 +C source of GD 1.8.4 found at http://www.boutell.com/gd/
  804 +
  805 +THANKS to Kirsten Schulz for the polygon fixes!
  806 +
  807 +The intersection finding technique of this code could be improved
  808 +by remembering the previous intertersection, and by using the slope.
  809 +That could help to adjust intersections to produce a nice
  810 +interior_extrema. */
  811 + this.fillPolygon = function(array_x, array_y)
  812 + {
  813 + var i;
  814 + var y;
  815 + var miny, maxy;
  816 + var x1, y1;
  817 + var x2, y2;
  818 + var ind1, ind2;
  819 + var ints;
  820 +
  821 + var n = array_x.length;
  822 + if(!n) return;
  823 +
  824 + miny = array_y[0];
  825 + maxy = array_y[0];
  826 + for(i = 1; i < n; i++)
  827 + {
  828 + if(array_y[i] < miny)
  829 + miny = array_y[i];
  830 +
  831 + if(array_y[i] > maxy)
  832 + maxy = array_y[i];
  833 + }
  834 + for(y = miny; y <= maxy; y++)
  835 + {
  836 + var polyInts = new Array();
  837 + ints = 0;
  838 + for(i = 0; i < n; i++)
  839 + {
  840 + if(!i)
  841 + {
  842 + ind1 = n-1;
  843 + ind2 = 0;
  844 + }
  845 + else
  846 + {
  847 + ind1 = i-1;
  848 + ind2 = i;
  849 + }
  850 + y1 = array_y[ind1];
  851 + y2 = array_y[ind2];
  852 + if(y1 < y2)
  853 + {
  854 + x1 = array_x[ind1];
  855 + x2 = array_x[ind2];
  856 + }
  857 + else if(y1 > y2)
  858 + {
  859 + y2 = array_y[ind1];
  860 + y1 = array_y[ind2];
  861 + x2 = array_x[ind1];
  862 + x1 = array_x[ind2];
  863 + }
  864 + else continue;
  865 +
  866 + // Modified 11. 2. 2004 Walter Zorn
  867 + if((y >= y1) && (y < y2))
  868 + polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1);
  869 +
  870 + else if((y == maxy) && (y > y1) && (y <= y2))
  871 + polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1);
  872 + }
  873 + polyInts.sort(_CompInt);
  874 + for(i = 0; i < ints; i+=2)
  875 + this._mkDiv(polyInts[i], y, polyInts[i+1]-polyInts[i]+1, 1);
  876 + }
  877 + };
  878 +
  879 + this.drawString = function(txt, x, y)
  880 + {
  881 + this.htm += '<div style="position:absolute;white-space:nowrap;'+
  882 + 'left:' + x + 'px;'+
  883 + 'top:' + y + 'px;'+
  884 + 'font-family:' + this.ftFam + ';'+
  885 + 'font-size:' + this.ftSz + ';'+
  886 + 'color:' + this.color + ';' + this.ftSty + '">'+
  887 + txt +
  888 + '<\/div>';
  889 + };
  890 +
  891 +/* drawStringRect() added by Rick Blommers.
  892 +Allows to specify the size of the text rectangle and to align the
  893 +text both horizontally (e.g. right) and vertically within that rectangle */
  894 + this.drawStringRect = function(txt, x, y, width, halign)
  895 + {
  896 + this.htm += '<div style="position:absolute;overflow:hidden;'+
  897 + 'left:' + x + 'px;'+
  898 + 'top:' + y + 'px;'+
  899 + 'width:'+width +'px;'+
  900 + 'text-align:'+halign+';'+
  901 + 'font-family:' + this.ftFam + ';'+
  902 + 'font-size:' + this.ftSz + ';'+
  903 + 'color:' + this.color + ';' + this.ftSty + '">'+
  904 + txt +
  905 + '<\/div>';
  906 + };
  907 +
  908 + this.drawImage = function(imgSrc, x, y, w, h, a)
  909 + {
  910 + this.htm += '<div style="position:absolute;'+
  911 + 'left:' + x + 'px;'+
  912 + 'top:' + y + 'px;'+
  913 + 'width:' + w + 'px;'+
  914 + 'height:' + h + 'px;">'+
  915 + '<img src="' + imgSrc + '" width="' + w + '" height="' + h + '"' + (a? (' '+a) : '') + '>'+
  916 + '<\/div>';
  917 + };
  918 +
  919 + this.clear = function()
  920 + {
  921 + this.htm = "";
  922 + if(this.cnv) this.cnv.innerHTML = "";
  923 + };
  924 +
  925 + this._mkOvQds = function(cx, cy, x, y, w, h, wod, hod)
  926 + {
  927 + var xl = cx - x, xr = cx + x + wod - w, yt = cy - y, yb = cy + y + hod - h;
  928 + if(xr > xl+w)
  929 + {
  930 + this._mkDiv(xr, yt, w, h);
  931 + this._mkDiv(xr, yb, w, h);
  932 + }
  933 + else
  934 + w = xr - xl + w;
  935 + this._mkDiv(xl, yt, w, h);
  936 + this._mkDiv(xl, yb, w, h);
  937 + };
  938 +
  939 + this._mkArcDiv = function(x, y, oy, cx, cy, iOdds, aBndA, aBndZ, iSects)
  940 + {
  941 + var xrDef = cx + x + (iOdds & 0xffff), y2, h = oy - y, xl, xr, w;
  942 +
  943 + if(!h) h = 1;
  944 + x = cx - x;
  945 +
  946 + if(iSects & 0xff0000) // Start-angle > end-angle
  947 + {
  948 + y2 = cy - y - h;
  949 + if(iSects & 0x00ff)
  950 + {
  951 + if(iSects & 0x02)
  952 + {
  953 + xl = Math.max(x, aBndZ[y]);
  954 + w = xrDef - xl;
  955 + if(w > 0) this._mkDiv(xl, y2, w, h);
  956 + }
  957 + if(iSects & 0x01)
  958 + {
  959 + xr = Math.min(xrDef, aBndA[y]);
  960 + w = xr - x;
  961 + if(w > 0) this._mkDiv(x, y2, w, h);
  962 + }
  963 + }
  964 + else
  965 + this._mkDiv(x, y2, xrDef - x, h);
  966 + y2 = cy + y + (iOdds >> 16);
  967 + if(iSects & 0xff00)
  968 + {
  969 + if(iSects & 0x0100)
  970 + {
  971 + xl = Math.max(x, aBndA[y]);
  972 + w = xrDef - xl;
  973 + if(w > 0) this._mkDiv(xl, y2, w, h);
  974 + }
  975 + if(iSects & 0x0200)
  976 + {
  977 + xr = Math.min(xrDef, aBndZ[y]);
  978 + w = xr - x;
  979 + if(w > 0) this._mkDiv(x, y2, w, h);
  980 + }
  981 + }
  982 + else
  983 + this._mkDiv(x, y2, xrDef - x, h);
  984 + }
  985 + else
  986 + {
  987 + if(iSects & 0x00ff)
  988 + {
  989 + if(iSects & 0x02)
  990 + xl = Math.max(x, aBndZ[y]);
  991 + else
  992 + xl = x;
  993 + if(iSects & 0x01)
  994 + xr = Math.min(xrDef, aBndA[y]);
  995 + else
  996 + xr = xrDef;
  997 + y2 = cy - y - h;
  998 + w = xr - xl;
  999 + if(w > 0) this._mkDiv(xl, y2, w, h);
  1000 + }
  1001 + if(iSects & 0xff00)
  1002 + {
  1003 + if(iSects & 0x0100)
  1004 + xl = Math.max(x, aBndA[y]);
  1005 + else
  1006 + xl = x;
  1007 + if(iSects & 0x0200)
  1008 + xr = Math.min(xrDef, aBndZ[y]);
  1009 + else
  1010 + xr = xrDef;
  1011 + y2 = cy + y + (iOdds >> 16);
  1012 + w = xr - xl;
  1013 + if(w > 0) this._mkDiv(xl, y2, w, h);
  1014 + }
  1015 + }
  1016 + };
  1017 +
  1018 + this.setStroke(1);
  1019 + this.setFont("verdana,geneva,helvetica,sans-serif", "12px", Font.PLAIN);
  1020 + this.color = "#000000";
  1021 + this.htm = "";
  1022 + this.wnd = wnd || window;
  1023 +
  1024 + if(!jg_ok) _chkDHTM();
  1025 + if(jg_ok)
  1026 + {
  1027 + if(cnv)
  1028 + {
  1029 + if(typeof(cnv) == "string")
  1030 + this.cont = document.all? (this.wnd.document.all[cnv] || null)
  1031 + : document.getElementById? (this.wnd.document.getElementById(cnv) || null)
  1032 + : null;
  1033 + else if(cnv == window.document)
  1034 + this.cont = document.getElementsByTagName("body")[0];
  1035 + // If cnv is a direct reference to a canvas DOM node
  1036 + // (option suggested by Andreas Luleich)
  1037 + else this.cont = cnv;
  1038 + // Create new canvas inside container DIV. Thus the drawing and clearing
  1039 + // methods won't interfere with the container's inner html.
  1040 + // Solution suggested by Vladimir.
  1041 + this.cnv = this.wnd.document.createElement("div");
  1042 + this.cnv.style.fontSize=0;
  1043 + this.cont.appendChild(this.cnv);
  1044 + this.paint = jg_dom? _pntCnvDom : _pntCnvIe;
  1045 + }
  1046 + else
  1047 + this.paint = _pntDoc;
  1048 + }
  1049 + else
  1050 + this.paint = _pntN;
  1051 +
  1052 + this.setPrintable(false);
  1053 +}
  1054 +
  1055 +function _mkLinVirt(aLin, x1, y1, x2, y2)
  1056 +{
  1057 + var dx = Math.abs(x2-x1), dy = Math.abs(y2-y1),
  1058 + x = x1, y = y1,
  1059 + xIncr = (x1 > x2)? -1 : 1,
  1060 + yIncr = (y1 > y2)? -1 : 1,
  1061 + p,
  1062 + i = 0;
  1063 + if(dx >= dy)
  1064 + {
  1065 + var pr = dy<<1,
  1066 + pru = pr - (dx<<1);
  1067 + p = pr-dx;
  1068 + while(dx > 0)
  1069 + {--dx;
  1070 + if(p > 0) // Increment y
  1071 + {
  1072 + aLin[i++] = x;
  1073 + y += yIncr;
  1074 + p += pru;
  1075 + }
  1076 + else p += pr;
  1077 + x += xIncr;
  1078 + }
  1079 + }
  1080 + else
  1081 + {
  1082 + var pr = dx<<1,
  1083 + pru = pr - (dy<<1);
  1084 + p = pr-dy;
  1085 + while(dy > 0)
  1086 + {--dy;
  1087 + y += yIncr;
  1088 + aLin[i++] = x;
  1089 + if(p > 0) // Increment x
  1090 + {
  1091 + x += xIncr;
  1092 + p += pru;
  1093 + }
  1094 + else p += pr;
  1095 + }
  1096 + }
  1097 + for(var len = aLin.length, i = len-i; i;)
  1098 + aLin[len-(i--)] = x;
  1099 +};
  1100 +
  1101 +function _CompInt(x, y)
  1102 +{
  1103 + return(x - y);
  1104 +}
  1105 +