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<script language="JavaScript">␍
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/* This notice must be untouched at all times.␍
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␍
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wz_jsgraphics.js v. 2.36␍
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The latest version is available at␍
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http://www.walterzorn.com␍
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or http://www.devira.com␍
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or http://www.walterzorn.de␍
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␍
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Copyright (c) 2002-2004 Walter Zorn. All rights reserved.␍
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Created 3. 11. 2002 by Walter Zorn (Web: http://www.walterzorn.com )␍
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Last modified: 21. 6. 2006␍
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␍
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Performance optimizations for Internet Explorer␍
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by Thomas Frank and John Holdsworth.␍
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fillPolygon method implemented by Matthieu Haller.␍
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␍
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High Performance JavaScript Graphics Library.␍
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Provides methods␍
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- to draw lines, rectangles, ellipses, polygons␍
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with specifiable line thickness,␍
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- to fill rectangles and ellipses␍
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- to draw text.␍
|
||||
NOTE: Operations, functions and branching have rather been optimized␍
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to efficiency and speed than to shortness of source code.␍
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␍
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LICENSE: LGPL␍
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␍
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This library is free software; you can redistribute it and/or␍
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modify it under the terms of the GNU Lesser General Public␍
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||||
License (LGPL) as published by the Free Software Foundation; either␍
|
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version 2.1 of the License, or (at your option) any later version.␍
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␍
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This library is distributed in the hope that it will be useful,␍
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of␍
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU␍
|
||||
Lesser General Public License for more details.␍
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␍
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You should have received a copy of the GNU Lesser General Public␍
|
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License along with this library; if not, write to the Free Software␍
|
||||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,␍
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or see http://www.gnu.org/copyleft/lesser.html␍
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*/␍
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␍
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␍
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var jg_ihtm, jg_ie, jg_fast, jg_dom, jg_moz,␍
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jg_n4 = (document.layers && typeof document.classes != "undefined");␍
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␍
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␍
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function chkDHTM(x, i)␍
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{␍
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x = document.body || null;␍
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jg_ie = x && typeof x.insertAdjacentHTML != "undefined";␍
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jg_dom = (x && !jg_ie &&␍
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typeof x.appendChild != "undefined" &&␍
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typeof document.createRange != "undefined" &&␍
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typeof (i = document.createRange()).setStartBefore != "undefined" &&␍
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typeof i.createContextualFragment != "undefined");␍
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jg_ihtm = !jg_ie && !jg_dom && x && typeof x.innerHTML != "undefined";␍
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jg_fast = jg_ie && document.all && !window.opera;␍
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jg_moz = jg_dom && typeof x.style.MozOpacity != "undefined";␍
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}␍
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␍
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␍
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function pntDoc()␍
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{␍
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this.wnd.document.write(jg_fast? this.htmRpc() : this.htm);␍
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||||
this.htm = '';␍
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}␍
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␍
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␍
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function pntCnvDom()␍
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{␍
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var x = this.wnd.document.createRange();␍
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x.setStartBefore(this.cnv);␍
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x = x.createContextualFragment(jg_fast? this.htmRpc() : this.htm);␍
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if(this.cnv) this.cnv.appendChild(x);␍
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this.htm = '';␍
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}␍
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␍
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␍
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function pntCnvIe()␍
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{␍
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if(this.cnv) this.cnv.insertAdjacentHTML("BeforeEnd", jg_fast? this.htmRpc() : this.htm);␍
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this.htm = '';␍
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}␍
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␍
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␍
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function pntCnvIhtm()␍
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{␍
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if(this.cnv) this.cnv.innerHTML += this.htm;␍
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this.htm = '';␍
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}␍
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␍
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␍
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function pntCnv()␍
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{␍
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this.htm = '';␍
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}␍
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␍
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␍
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function mkDiv(x, y, w, h)␍
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{␍
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this.htm += '<div style="position:absolute;'+␍
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'left:' + x + 'px;'+␍
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'top:' + y + 'px;'+␍
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'width:' + w + 'px;'+␍
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'height:' + h + 'px;'+␍
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'clip:rect(0,'+w+'px,'+h+'px,0);'+␍
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'background-color:' + this.color +␍
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(!jg_moz? ';overflow:hidden' : '')+␍
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';"><\/div>';␍
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}␍
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␍
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␍
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function mkDivIe(x, y, w, h)␍
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{␍
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this.htm += '%%'+this.color+';'+x+';'+y+';'+w+';'+h+';';␍
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}␍
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␍
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␍
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function mkDivPrt(x, y, w, h)␍
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{␍
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this.htm += '<div style="position:absolute;'+␍
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'border-left:' + w + 'px solid ' + this.color + ';'+␍
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'left:' + x + 'px;'+␍
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'top:' + y + 'px;'+␍
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'width:0px;'+␍
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'height:' + h + 'px;'+␍
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'clip:rect(0,'+w+'px,'+h+'px,0);'+␍
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'background-color:' + this.color +␍
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(!jg_moz? ';overflow:hidden' : '')+␍
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';"><\/div>';␍
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}␍
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␍
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␍
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function mkLyr(x, y, w, h)␍
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{␍
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this.htm += '<layer '+␍
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'left="' + x + '" '+␍
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'top="' + y + '" '+␍
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'width="' + w + '" '+␍
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'height="' + h + '" '+␍
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'bgcolor="' + this.color + '"><\/layer>\n';␍
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}␍
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␍
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␍
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var regex = /%%([^;]+);([^;]+);([^;]+);([^;]+);([^;]+);/g;␍
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function htmRpc()␍
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{␍
|
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return this.htm.replace(␍
|
||||
regex,␍
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'<div style="overflow:hidden;position:absolute;background-color:'+␍
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'$1;left:$2;top:$3;width:$4;height:$5"></div>\n');␍
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}␍
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␍
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␍
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function htmPrtRpc()␍
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{␍
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return this.htm.replace(␍
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regex,␍
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'<div style="overflow:hidden;position:absolute;background-color:'+␍
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'$1;left:$2;top:$3;width:$4;height:$5;border-left:$4px solid $1"></div>\n');␍
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}␍
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␍
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␍
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function mkLin(x1, y1, x2, y2)␍
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{␍
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if (x1 > x2)␍
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{␍
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var _x2 = x2;␍
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var _y2 = y2;␍
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x2 = x1;␍
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y2 = y1;␍
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x1 = _x2;␍
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y1 = _y2;␍
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}␍
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var dx = x2-x1, dy = Math.abs(y2-y1),␍
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x = x1, y = y1,␍
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yIncr = (y1 > y2)? -1 : 1;␍
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␍
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if (dx >= dy)␍
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{␍
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var pr = dy<<1,␍
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pru = pr - (dx<<1),␍
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p = pr-dx,␍
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ox = x;␍
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while ((dx--) > 0)␍
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{␍
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++x;␍
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if (p > 0)␍
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{␍
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this.mkDiv(ox, y, x-ox, 1);␍
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y += yIncr;␍
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p += pru;␍
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ox = x;␍
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}␍
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else p += pr;␍
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}␍
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this.mkDiv(ox, y, x2-ox+1, 1);␍
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}␍
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␍
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else␍
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{␍
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var pr = dx<<1,␍
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pru = pr - (dy<<1),␍
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p = pr-dy,␍
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oy = y;␍
|
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if (y2 <= y1)␍
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{␍
|
||||
while ((dy--) > 0)␍
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{␍
|
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if (p > 0)␍
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{␍
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this.mkDiv(x++, y, 1, oy-y+1);␍
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y += yIncr;␍
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p += pru;␍
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oy = y;␍
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}␍
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else␍
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{␍
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y += yIncr;␍
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p += pr;␍
|
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}␍
|
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}␍
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this.mkDiv(x2, y2, 1, oy-y2+1);␍
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}␍
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else␍
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{␍
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while ((dy--) > 0)␍
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{␍
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y += yIncr;␍
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if (p > 0)␍
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{␍
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this.mkDiv(x++, oy, 1, y-oy);␍
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p += pru;␍
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oy = y;␍
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}␍
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else p += pr;␍
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}␍
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this.mkDiv(x2, oy, 1, y2-oy+1);␍
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}␍
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}␍
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||||
}␍
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␍
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␍
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function mkLin2D(x1, y1, x2, y2)␍
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{␍
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if (x1 > x2)␍
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{␍
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var _x2 = x2;␍
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var _y2 = y2;␍
|
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x2 = x1;␍
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y2 = y1;␍
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x1 = _x2;␍
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y1 = _y2;␍
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}␍
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var dx = x2-x1, dy = Math.abs(y2-y1),␍
|
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x = x1, y = y1,␍
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yIncr = (y1 > y2)? -1 : 1;␍
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␍
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var s = this.stroke;␍
|
||||
if (dx >= dy)␍
|
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{␍
|
||||
if (dx > 0 && s-3 > 0)␍
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||||
{␍
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var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx;␍
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_s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;␍
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}␍
|
||||
else var _s = s;␍
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var ad = Math.ceil(s/2);␍
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␍
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var pr = dy<<1,␍
|
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pru = pr - (dx<<1),␍
|
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p = pr-dx,␍
|
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ox = x;␍
|
||||
while ((dx--) > 0)␍
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||||
{␍
|
||||
++x;␍
|
||||
if (p > 0)␍
|
||||
{␍
|
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this.mkDiv(ox, y, x-ox+ad, _s);␍
|
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y += yIncr;␍
|
||||
p += pru;␍
|
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ox = x;␍
|
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}␍
|
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else p += pr;␍
|
||||
}␍
|
||||
this.mkDiv(ox, y, x2-ox+ad+1, _s);␍
|
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}␍
|
||||
␍
|
||||
else␍
|
||||
{␍
|
||||
if (s-3 > 0)␍
|
||||
{␍
|
||||
var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy;␍
|
||||
_s = (!(s-4)? Math.ceil(_s) : Math.round(_s)) + 1;␍
|
||||
}␍
|
||||
else var _s = s;␍
|
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var ad = Math.round(s/2);␍
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||||
␍
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var pr = dx<<1,␍
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pru = pr - (dy<<1),␍
|
||||
p = pr-dy,␍
|
||||
oy = y;␍
|
||||
if (y2 <= y1)␍
|
||||
{␍
|
||||
++ad;␍
|
||||
while ((dy--) > 0)␍
|
||||
{␍
|
||||
if (p > 0)␍
|
||||
{␍
|
||||
this.mkDiv(x++, y, _s, oy-y+ad);␍
|
||||
y += yIncr;␍
|
||||
p += pru;␍
|
||||
oy = y;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
y += yIncr;␍
|
||||
p += pr;␍
|
||||
}␍
|
||||
}␍
|
||||
this.mkDiv(x2, y2, _s, oy-y2+ad);␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
while ((dy--) > 0)␍
|
||||
{␍
|
||||
y += yIncr;␍
|
||||
if (p > 0)␍
|
||||
{␍
|
||||
this.mkDiv(x++, oy, _s, y-oy+ad);␍
|
||||
p += pru;␍
|
||||
oy = y;␍
|
||||
}␍
|
||||
else p += pr;␍
|
||||
}␍
|
||||
this.mkDiv(x2, oy, _s, y2-oy+ad+1);␍
|
||||
}␍
|
||||
}␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkLinDott(x1, y1, x2, y2)␍
|
||||
{␍
|
||||
if (x1 > x2)␍
|
||||
{␍
|
||||
var _x2 = x2;␍
|
||||
var _y2 = y2;␍
|
||||
x2 = x1;␍
|
||||
y2 = y1;␍
|
||||
x1 = _x2;␍
|
||||
y1 = _y2;␍
|
||||
}␍
|
||||
var dx = x2-x1, dy = Math.abs(y2-y1),␍
|
||||
x = x1, y = y1,␍
|
||||
yIncr = (y1 > y2)? -1 : 1,␍
|
||||
drw = true;␍
|
||||
if (dx >= dy)␍
|
||||
{␍
|
||||
var pr = dy<<1,␍
|
||||
pru = pr - (dx<<1),␍
|
||||
p = pr-dx;␍
|
||||
while ((dx--) > 0)␍
|
||||
{␍
|
||||
if (drw) this.mkDiv(x, y, 1, 1);␍
|
||||
drw = !drw;␍
|
||||
if (p > 0)␍
|
||||
{␍
|
||||
y += yIncr;␍
|
||||
p += pru;␍
|
||||
}␍
|
||||
else p += pr;␍
|
||||
++x;␍
|
||||
}␍
|
||||
if (drw) this.mkDiv(x, y, 1, 1);␍
|
||||
}␍
|
||||
␍
|
||||
else␍
|
||||
{␍
|
||||
var pr = dx<<1,␍
|
||||
pru = pr - (dy<<1),␍
|
||||
p = pr-dy;␍
|
||||
while ((dy--) > 0)␍
|
||||
{␍
|
||||
if (drw) this.mkDiv(x, y, 1, 1);␍
|
||||
drw = !drw;␍
|
||||
y += yIncr;␍
|
||||
if (p > 0)␍
|
||||
{␍
|
||||
++x;␍
|
||||
p += pru;␍
|
||||
}␍
|
||||
else p += pr;␍
|
||||
}␍
|
||||
if (drw) this.mkDiv(x, y, 1, 1);␍
|
||||
}␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkOv(left, top, width, height)␍
|
||||
{␍
|
||||
var a = width>>1, b = height>>1,␍
|
||||
wod = width&1, hod = (height&1)+1,␍
|
||||
cx = left+a, cy = top+b,␍
|
||||
x = 0, y = b,␍
|
||||
ox = 0, oy = b,␍
|
||||
aa = (a*a)<<1, bb = (b*b)<<1,␍
|
||||
st = (aa>>1)*(1-(b<<1)) + bb,␍
|
||||
tt = (bb>>1) - aa*((b<<1)-1),␍
|
||||
w, h;␍
|
||||
while (y > 0)␍
|
||||
{␍
|
||||
if (st < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3);␍
|
||||
tt += (bb<<1)*(++x);␍
|
||||
}␍
|
||||
else if (tt < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3) - (aa<<1)*(y-1);␍
|
||||
tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3);␍
|
||||
w = x-ox;␍
|
||||
h = oy-y;␍
|
||||
if (w&2 && h&2)␍
|
||||
{␍
|
||||
this.mkOvQds(cx, cy, -x+2, ox+wod, -oy, oy-1+hod, 1, 1);␍
|
||||
this.mkOvQds(cx, cy, -x+1, x-1+wod, -y-1, y+hod, 1, 1);␍
|
||||
}␍
|
||||
else this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, oy-h+hod, w, h);␍
|
||||
ox = x;␍
|
||||
oy = y;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
tt -= aa*((y<<1)-3);␍
|
||||
st -= (aa<<1)*(--y);␍
|
||||
}␍
|
||||
}␍
|
||||
this.mkDiv(cx-a, cy-oy, a-ox+1, (oy<<1)+hod);␍
|
||||
this.mkDiv(cx+ox+wod, cy-oy, a-ox+1, (oy<<1)+hod);␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkOv2D(left, top, width, height)␍
|
||||
{␍
|
||||
var s = this.stroke;␍
|
||||
width += s-1;␍
|
||||
height += s-1;␍
|
||||
var a = width>>1, b = height>>1,␍
|
||||
wod = width&1, hod = (height&1)+1,␍
|
||||
cx = left+a, cy = top+b,␍
|
||||
x = 0, y = b,␍
|
||||
aa = (a*a)<<1, bb = (b*b)<<1,␍
|
||||
st = (aa>>1)*(1-(b<<1)) + bb,␍
|
||||
tt = (bb>>1) - aa*((b<<1)-1);␍
|
||||
␍
|
||||
if (s-4 < 0 && (!(s-2) || width-51 > 0 && height-51 > 0))␍
|
||||
{␍
|
||||
var ox = 0, oy = b,␍
|
||||
w, h,␍
|
||||
pxl, pxr, pxt, pxb, pxw;␍
|
||||
while (y > 0)␍
|
||||
{␍
|
||||
if (st < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3);␍
|
||||
tt += (bb<<1)*(++x);␍
|
||||
}␍
|
||||
else if (tt < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3) - (aa<<1)*(y-1);␍
|
||||
tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3);␍
|
||||
w = x-ox;␍
|
||||
h = oy-y;␍
|
||||
␍
|
||||
if (w-1)␍
|
||||
{␍
|
||||
pxw = w+1+(s&1);␍
|
||||
h = s;␍
|
||||
}␍
|
||||
else if (h-1)␍
|
||||
{␍
|
||||
pxw = s;␍
|
||||
h += 1+(s&1);␍
|
||||
}␍
|
||||
else pxw = h = s;␍
|
||||
this.mkOvQds(cx, cy, -x+1, ox-pxw+w+wod, -oy, -h+oy+hod, pxw, h);␍
|
||||
ox = x;␍
|
||||
oy = y;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
tt -= aa*((y<<1)-3);␍
|
||||
st -= (aa<<1)*(--y);␍
|
||||
}␍
|
||||
}␍
|
||||
this.mkDiv(cx-a, cy-oy, s, (oy<<1)+hod);␍
|
||||
this.mkDiv(cx+a+wod-s+1, cy-oy, s, (oy<<1)+hod);␍
|
||||
}␍
|
||||
␍
|
||||
else␍
|
||||
{␍
|
||||
var _a = (width-((s-1)<<1))>>1,␍
|
||||
_b = (height-((s-1)<<1))>>1,␍
|
||||
_x = 0, _y = _b,␍
|
||||
_aa = (_a*_a)<<1, _bb = (_b*_b)<<1,␍
|
||||
_st = (_aa>>1)*(1-(_b<<1)) + _bb,␍
|
||||
_tt = (_bb>>1) - _aa*((_b<<1)-1),␍
|
||||
␍
|
||||
pxl = new Array(),␍
|
||||
pxt = new Array(),␍
|
||||
_pxb = new Array();␍
|
||||
pxl[0] = 0;␍
|
||||
pxt[0] = b;␍
|
||||
_pxb[0] = _b-1;␍
|
||||
while (y > 0)␍
|
||||
{␍
|
||||
if (st < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3);␍
|
||||
tt += (bb<<1)*(++x);␍
|
||||
pxl[pxl.length] = x;␍
|
||||
pxt[pxt.length] = y;␍
|
||||
}␍
|
||||
else if (tt < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3) - (aa<<1)*(y-1);␍
|
||||
tt += (bb<<1)*(++x) - aa*(((y--)<<1)-3);␍
|
||||
pxl[pxl.length] = x;␍
|
||||
pxt[pxt.length] = y;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
tt -= aa*((y<<1)-3);␍
|
||||
st -= (aa<<1)*(--y);␍
|
||||
}␍
|
||||
␍
|
||||
if (_y > 0)␍
|
||||
{␍
|
||||
if (_st < 0)␍
|
||||
{␍
|
||||
_st += _bb*((_x<<1)+3);␍
|
||||
_tt += (_bb<<1)*(++_x);␍
|
||||
_pxb[_pxb.length] = _y-1;␍
|
||||
}␍
|
||||
else if (_tt < 0)␍
|
||||
{␍
|
||||
_st += _bb*((_x<<1)+3) - (_aa<<1)*(_y-1);␍
|
||||
_tt += (_bb<<1)*(++_x) - _aa*(((_y--)<<1)-3);␍
|
||||
_pxb[_pxb.length] = _y-1;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
_tt -= _aa*((_y<<1)-3);␍
|
||||
_st -= (_aa<<1)*(--_y);␍
|
||||
_pxb[_pxb.length-1]--;␍
|
||||
}␍
|
||||
}␍
|
||||
}␍
|
||||
␍
|
||||
var ox = 0, oy = b,␍
|
||||
_oy = _pxb[0],␍
|
||||
l = pxl.length,␍
|
||||
w, h;␍
|
||||
for (var i = 0; i < l; i++)␍
|
||||
{␍
|
||||
if (typeof _pxb[i] != "undefined")␍
|
||||
{␍
|
||||
if (_pxb[i] < _oy || pxt[i] < oy)␍
|
||||
{␍
|
||||
x = pxl[i];␍
|
||||
this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, _oy+hod, x-ox, oy-_oy);␍
|
||||
ox = x;␍
|
||||
oy = pxt[i];␍
|
||||
_oy = _pxb[i];␍
|
||||
}␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
x = pxl[i];␍
|
||||
this.mkDiv(cx-x+1, cy-oy, 1, (oy<<1)+hod);␍
|
||||
this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);␍
|
||||
ox = x;␍
|
||||
oy = pxt[i];␍
|
||||
}␍
|
||||
}␍
|
||||
this.mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod);␍
|
||||
this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod);␍
|
||||
}␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkOvDott(left, top, width, height)␍
|
||||
{␍
|
||||
var a = width>>1, b = height>>1,␍
|
||||
wod = width&1, hod = height&1,␍
|
||||
cx = left+a, cy = top+b,␍
|
||||
x = 0, y = b,␍
|
||||
aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1,␍
|
||||
st = (aa2>>1)*(1-(b<<1)) + bb,␍
|
||||
tt = (bb>>1) - aa2*((b<<1)-1),␍
|
||||
drw = true;␍
|
||||
while (y > 0)␍
|
||||
{␍
|
||||
if (st < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3);␍
|
||||
tt += (bb<<1)*(++x);␍
|
||||
}␍
|
||||
else if (tt < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3) - aa4*(y-1);␍
|
||||
tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-3);␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
tt -= aa2*((y<<1)-3);␍
|
||||
st -= aa4*(--y);␍
|
||||
}␍
|
||||
if (drw) this.mkOvQds(cx, cy, -x, x+wod, -y, y+hod, 1, 1);␍
|
||||
drw = !drw;␍
|
||||
}␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkRect(x, y, w, h)␍
|
||||
{␍
|
||||
var s = this.stroke;␍
|
||||
this.mkDiv(x, y, w, s);␍
|
||||
this.mkDiv(x+w, y, s, h);␍
|
||||
this.mkDiv(x, y+h, w+s, s);␍
|
||||
this.mkDiv(x, y+s, s, h-s);␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function mkRectDott(x, y, w, h)␍
|
||||
{␍
|
||||
this.drawLine(x, y, x+w, y);␍
|
||||
this.drawLine(x+w, y, x+w, y+h);␍
|
||||
this.drawLine(x, y+h, x+w, y+h);␍
|
||||
this.drawLine(x, y, x, y+h);␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
function jsgFont()␍
|
||||
{␍
|
||||
this.PLAIN = 'font-weight:normal;';␍
|
||||
this.BOLD = 'font-weight:bold;';␍
|
||||
this.ITALIC = 'font-style:italic;';␍
|
||||
this.ITALIC_BOLD = this.ITALIC + this.BOLD;␍
|
||||
this.BOLD_ITALIC = this.ITALIC_BOLD;␍
|
||||
}␍
|
||||
var Font = new jsgFont();␍
|
||||
␍
|
||||
␍
|
||||
function jsgStroke()␍
|
||||
{␍
|
||||
this.DOTTED = -1;␍
|
||||
}␍
|
||||
var Stroke = new jsgStroke();␍
|
||||
␍
|
||||
␍
|
||||
function jsGraphics(id, wnd)␍
|
||||
{␍
|
||||
this.setColor = new Function('arg', 'this.color = arg.toLowerCase();');␍
|
||||
␍
|
||||
this.setStroke = function(x)␍
|
||||
{␍
|
||||
this.stroke = x;␍
|
||||
if (!(x+1))␍
|
||||
{␍
|
||||
this.drawLine = mkLinDott;␍
|
||||
this.mkOv = mkOvDott;␍
|
||||
this.drawRect = mkRectDott;␍
|
||||
}␍
|
||||
else if (x-1 > 0)␍
|
||||
{␍
|
||||
this.drawLine = mkLin2D;␍
|
||||
this.mkOv = mkOv2D;␍
|
||||
this.drawRect = mkRect;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
this.drawLine = mkLin;␍
|
||||
this.mkOv = mkOv;␍
|
||||
this.drawRect = mkRect;␍
|
||||
}␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.setPrintable = function(arg)␍
|
||||
{␍
|
||||
this.printable = arg;␍
|
||||
if (jg_fast)␍
|
||||
{␍
|
||||
this.mkDiv = mkDivIe;␍
|
||||
this.htmRpc = arg? htmPrtRpc : htmRpc;␍
|
||||
}␍
|
||||
else this.mkDiv = jg_n4? mkLyr : arg? mkDivPrt : mkDiv;␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.setFont = function(fam, sz, sty)␍
|
||||
{␍
|
||||
this.ftFam = fam;␍
|
||||
this.ftSz = sz;␍
|
||||
this.ftSty = sty || Font.PLAIN;␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.drawPolyline = this.drawPolyLine = function(x, y, s)␍
|
||||
{␍
|
||||
for (var i=0 ; i<x.length-1 ; i++ )␍
|
||||
this.drawLine(x[i], y[i], x[i+1], y[i+1]);␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.fillRect = function(x, y, w, h)␍
|
||||
{␍
|
||||
this.mkDiv(x, y, w, h);␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.drawPolygon = function(x, y)␍
|
||||
{␍
|
||||
this.drawPolyline(x, y);␍
|
||||
this.drawLine(x[x.length-1], y[x.length-1], x[0], y[0]);␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.drawEllipse = this.drawOval = function(x, y, w, h)␍
|
||||
{␍
|
||||
this.mkOv(x, y, w, h);␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.fillEllipse = this.fillOval = function(left, top, w, h)␍
|
||||
{␍
|
||||
var a = (w -= 1)>>1, b = (h -= 1)>>1,␍
|
||||
wod = (w&1)+1, hod = (h&1)+1,␍
|
||||
cx = left+a, cy = top+b,␍
|
||||
x = 0, y = b,␍
|
||||
ox = 0, oy = b,␍
|
||||
aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1,␍
|
||||
st = (aa2>>1)*(1-(b<<1)) + bb,␍
|
||||
tt = (bb>>1) - aa2*((b<<1)-1),␍
|
||||
pxl, dw, dh;␍
|
||||
if (w+1) while (y > 0)␍
|
||||
{␍
|
||||
if (st < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3);␍
|
||||
tt += (bb<<1)*(++x);␍
|
||||
}␍
|
||||
else if (tt < 0)␍
|
||||
{␍
|
||||
st += bb*((x<<1)+3) - aa4*(y-1);␍
|
||||
pxl = cx-x;␍
|
||||
dw = (x<<1)+wod;␍
|
||||
tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-3);␍
|
||||
dh = oy-y;␍
|
||||
this.mkDiv(pxl, cy-oy, dw, dh);␍
|
||||
this.mkDiv(pxl, cy+y+hod, dw, dh);␍
|
||||
ox = x;␍
|
||||
oy = y;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
tt -= aa2*((y<<1)-3);␍
|
||||
st -= aa4*(--y);␍
|
||||
}␍
|
||||
}␍
|
||||
this.mkDiv(cx-a, cy-oy, w+1, (oy<<1)+hod);␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
/* fillPolygon method, implemented by Matthieu Haller.␍
|
||||
This javascript function is an adaptation of the gdImageFilledPolygon for Walter Zorn lib.␍
|
||||
C source of GD 1.8.4 found at http://www.boutell.com/gd/␍
|
||||
␍
|
||||
THANKS to Kirsten Schulz for the polygon fixes!␍
|
||||
␍
|
||||
The intersection finding technique of this code could be improved␍
|
||||
by remembering the previous intertersection, and by using the slope.␍
|
||||
That could help to adjust intersections to produce a nice␍
|
||||
interior_extrema. */␍
|
||||
this.fillPolygon = function(array_x, array_y)␍
|
||||
{␍
|
||||
var i;␍
|
||||
var y;␍
|
||||
var miny, maxy;␍
|
||||
var x1, y1;␍
|
||||
var x2, y2;␍
|
||||
var ind1, ind2;␍
|
||||
var ints;␍
|
||||
␍
|
||||
var n = array_x.length;␍
|
||||
␍
|
||||
if (!n) return;␍
|
||||
␍
|
||||
␍
|
||||
miny = array_y[0];␍
|
||||
maxy = array_y[0];␍
|
||||
for (i = 1; i < n; i++)␍
|
||||
{␍
|
||||
if (array_y[i] < miny)␍
|
||||
miny = array_y[i];␍
|
||||
␍
|
||||
if (array_y[i] > maxy)␍
|
||||
maxy = array_y[i];␍
|
||||
}␍
|
||||
for (y = miny; y <= maxy; y++)␍
|
||||
{␍
|
||||
var polyInts = new Array();␍
|
||||
ints = 0;␍
|
||||
for (i = 0; i < n; i++)␍
|
||||
{␍
|
||||
if (!i)␍
|
||||
{␍
|
||||
ind1 = n-1;␍
|
||||
ind2 = 0;␍
|
||||
}␍
|
||||
else␍
|
||||
{␍
|
||||
ind1 = i-1;␍
|
||||
ind2 = i;␍
|
||||
}␍
|
||||
y1 = array_y[ind1];␍
|
||||
y2 = array_y[ind2];␍
|
||||
if (y1 < y2)␍
|
||||
{␍
|
||||
x1 = array_x[ind1];␍
|
||||
x2 = array_x[ind2];␍
|
||||
}␍
|
||||
else if (y1 > y2)␍
|
||||
{␍
|
||||
y2 = array_y[ind1];␍
|
||||
y1 = array_y[ind2];␍
|
||||
x2 = array_x[ind1];␍
|
||||
x1 = array_x[ind2];␍
|
||||
}␍
|
||||
else continue;␍
|
||||
␍
|
||||
// modified 11. 2. 2004 Walter Zorn␍
|
||||
if ((y >= y1) && (y < y2))␍
|
||||
polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1);␍
|
||||
␍
|
||||
else if ((y == maxy) && (y > y1) && (y <= y2))␍
|
||||
polyInts[ints++] = Math.round((y-y1) * (x2-x1) / (y2-y1) + x1);␍
|
||||
}␍
|
||||
polyInts.sort(integer_compare);␍
|
||||
for (i = 0; i < ints; i+=2)␍
|
||||
this.mkDiv(polyInts[i], y, polyInts[i+1]-polyInts[i]+1, 1);␍
|
||||
}␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.drawString = function(txt, x, y)␍
|
||||
{␍
|
||||
this.htm += '<div style="position:absolute;white-space:nowrap;'+␍
|
||||
'left:' + x + 'px;'+␍
|
||||
'top:' + y + 'px;'+␍
|
||||
'font-family:' + this.ftFam + ';'+␍
|
||||
'font-size:' + this.ftSz + ';'+␍
|
||||
'color:' + this.color + ';' + this.ftSty + '">'+␍
|
||||
txt +␍
|
||||
'<\/div>';␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
/* drawStringRect() added by Rick Blommers.␍
|
||||
Allows to specify the size of the text rectangle and to align the␍
|
||||
text both horizontally (e.g. right) and vertically within that rectangle */␍
|
||||
this.drawStringRect = function(txt, x, y, width, halign)␍
|
||||
{␍
|
||||
this.htm += '<div style="position:absolute;overflow:hidden;'+␍
|
||||
'left:' + x + 'px;'+␍
|
||||
'top:' + y + 'px;'+␍
|
||||
'width:'+width +'px;'+␍
|
||||
'text-align:'+halign+';'+␍
|
||||
'font-family:' + this.ftFam + ';'+␍
|
||||
'font-size:' + this.ftSz + ';'+␍
|
||||
'color:' + this.color + ';' + this.ftSty + '">'+␍
|
||||
txt +␍
|
||||
'<\/div>';␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.drawImage = function(imgSrc, x, y, w, h, a)␍
|
||||
{␍
|
||||
this.htm += '<div style="position:absolute;'+␍
|
||||
'left:' + x + 'px;'+␍
|
||||
'top:' + y + 'px;'+␍
|
||||
'width:' + w + 'px;'+␍
|
||||
'height:' + h + 'px;">'+␍
|
||||
'<img src="' + imgSrc + '" width="' + w + '" height="' + h + '"' + (a? (' '+a) : '') + '>'+␍
|
||||
'<\/div>';␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.clear = function()␍
|
||||
{␍
|
||||
this.htm = "";␍
|
||||
if (this.cnv) this.cnv.innerHTML = this.defhtm;␍
|
||||
};␍
|
||||
␍
|
||||
␍
|
||||
this.mkOvQds = function(cx, cy, xl, xr, yt, yb, w, h)␍
|
||||
{␍
|
||||
this.mkDiv(xr+cx, yt+cy, w, h);␍
|
||||
this.mkDiv(xr+cx, yb+cy, w, h);␍
|
||||
this.mkDiv(xl+cx, yb+cy, w, h);␍
|
||||
this.mkDiv(xl+cx, yt+cy, w, h);␍
|
||||
};␍
|
||||
␍
|
||||
this.setStroke(1);␍
|
||||
this.setFont('verdana,geneva,helvetica,sans-serif', String.fromCharCode(0x31, 0x32, 0x70, 0x78), Font.PLAIN);␍
|
||||
this.color = '#000000';␍
|
||||
this.htm = '';␍
|
||||
this.wnd = wnd || window;␍
|
||||
␍
|
||||
if (!(jg_ie || jg_dom || jg_ihtm)) chkDHTM();␍
|
||||
if (typeof id != 'string' || !id) this.paint = pntDoc;␍
|
||||
else␍
|
||||
{␍
|
||||
this.cnv = document.all? (this.wnd.document.all[id] || null)␍
|
||||
: document.getElementById? (this.wnd.document.getElementById(id) || null)␍
|
||||
: null;␍
|
||||
this.defhtm = (this.cnv && this.cnv.innerHTML)? this.cnv.innerHTML : '';␍
|
||||
this.paint = jg_dom? pntCnvDom : jg_ie? pntCnvIe : jg_ihtm? pntCnvIhtm : pntCnv;␍
|
||||
}␍
|
||||
␍
|
||||
this.setPrintable(false);␍
|
||||
}␍
|
||||
␍
|
||||
␍
|
||||
␍
|
||||
function integer_compare(x,y)␍
|
||||
{␍
|
||||
return (x < y) ? -1 : ((x > y)*1);␍
|
||||
}␍
|
||||
</script>␍
|
||||
Reference in new issue
Block a user