17 lines
11 KiB
JavaScript
17 lines
11 KiB
JavaScript
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// Excanvas (Explorer Canvas) R43
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// http://excanvas.sourceforge.net/
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// Copyright 2006 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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if(!document.createElement("canvas").getContext){(function(){var u=Math;var v=u.round;var r=u.sin;var C=u.cos;var l=u.abs;var B=u.sqrt;var a=10;var n=a/2;function g(){return this.context_||(this.context_=new p(this))}var t=Array.prototype.slice;function D(j,m,E){var i=t.call(arguments,2);return function(){return j.apply(m,i.concat(t.call(arguments)))}}var h={init:function(i){if(/MSIE/.test(navigator.userAgent)&&!window.opera){var j=i||document;j.createElement("canvas");j.attachEvent("onreadystatechange",D(this.init_,this,j))}},init_:function(F){if(!F.namespaces.g_vml_){F.namespaces.add("g_vml_","urn:schemas-microsoft-com:vml","#default#VML")}if(!F.namespaces.g_o_){F.namespaces.add("g_o_","urn:schemas-microsoft-com:office:office","#default#VML")}if(!F.styleSheets.ex_canvas_){var E=F.createStyleSheet();E.owningElement.id="ex_canvas_";E.cssText="canvas{display:inline-block;overflow:hidden;text-align:left;width:300px;height:150px}g_vml_\\:*{behavior:url(#default#VML)}g_o_\\:*{behavior:url(#default#VML)}"}var m=F.getElementsByTagName("canvas");for(var j=0;j<m.length;j++){this.initElement(m[j])}},initElement:function(j){if(!j.getContext){j.getContext=g;j.innerHTML="";j.attachEvent("onpropertychange",A);j.attachEvent("onresize",b);var i=j.attributes;if(i.width&&i.width.specified){j.style.width=i.width.nodeValue+"px"}else{j.width=j.clientWidth}if(i.height&&i.height.specified){j.style.height=i.height.nodeValue+"px"}else{j.height=j.clientHeight}}return j}};function A(j){var i=j.srcElement;switch(j.propertyName){case"width":i.style.width=i.attributes.width.nodeValue+"px";i.getContext().clearRect();break;case"height":i.style.height=i.attributes.height.nodeValue+"px";i.getContext().clearRect();break}}function b(j){var i=j.srcElement;if(i.firstChild){i.firstChild.style.width=i.clientWidth+"px";i.firstChild.style.height=i.clientHeight+"px"}}h.init();var e=[];for(var y=0;y<16;y++){for(var x=0;x<16;x++){e[y*16+x]=y.toString(16)+x.toString(16)}}function q(){return[[1,0,0],[0,1,0],[0,0,1]]}function d(E,m){var j=q();for(var i=0;i<3;i++){for(var H=0;H<3;H++){var F=0;for(var G=0;G<3;G++){F+=E[i][G]*m[G][H]}j[i][H]=F}}return j}function w(j,i){i.fillStyle=j.fillStyle;i.lineCap=j.lineCap;i.lineJoin=j.lineJoin;i.lineWidth=j.lineWidth;i.miterLimit=j.miterLimit;i.shadowBlur=j.shadowBlur;i.shadowColor=j.shadowColor;i.shadowOffsetX=j.shadowOffsetX;i.shadowOffsetY=j.shadowOffsetY;i.strokeStyle=j.strokeStyle;i.globalAlpha=j.globalAlpha;i.arcScaleX_=j.arcScaleX_;i.arcScaleY_=j.arcScaleY_;i.lineScale_=j.lineScale_}function c(m){var G,F=1;m=String(m);if(m.substring(0,3)=="rgb"){var I=m.indexOf("(",3);var j=m.indexOf(")",I+1);var H=m.substring(I+1,j).split(",");G="#";for(var E=0;E<3;E++){G+=e[Number(H[E])]}if(H.length==4&&m.substr(3,1)=="a"){F=H[3]}}else{G=m}return{color:G,alpha:F}}function s(i){switch(i){case"butt":return"flat";case"round":return"round";case"square":default:return"square"}}function p(j){this.m_=q();this.mStack_=[];this.aStack_=[];this.currentPath_=[];this.strokeStyle="#000";this.fillStyle="#000";this.lineWidth=1;this.lineJoin="miter";this.lineCap="butt";this.miterLimit=a*1;this.globalAlpha=1;this.canvas=j;var i=j.ownerDocument.createElement("div");i.style.width=j.clientWidth+"px";i.style.height=j.clientHeight+"px";i.style.overflow="hidden";i.style.position="absolute";j.appendChild(i);this.element_=i;this.arcScaleX_=1;this.arcScaleY_=1;this.lineScale_=1}var k=p.prototype;k.clearRect=function(){this.element_.innerHTML=""};k.beginPath=function(){this.currentPath_=[]};k.moveTo=function(j,i){var m=this.getCoords_(j,i);this.currentPath_.push({type:"moveTo",x:m.x,y:m.y});this.currentX_=m.x;this.currentY_=m.y};k.lineTo=function(j,i){var m=this.getCoords_(j,i);this.currentPath_.push({type:"lineTo",x:m.x,y:m.y});this.currentX_=m.x;this.currentY_=m.y};k.bezierCurveTo=function(m,j,J,I,H,F){var i=this.getCoords_(H,F);var G=this.getCoords_(m,j);var E=this.getCoords_(J,I);o(this,G,E,i)};function o(i,E,m,j){i.currentPath_.push({type:"bezierCurveTo",cp1x:E.x,cp1y:E.y,cp2x:m.x,cp2y:m.y,x:j.x,y:j.y});i.currentX_=j.x;i.currentY_=j.y}k.quadraticCurveTo=funct
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