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excanvas.min.js
1 line | 10.6 KiB | application/javascript | JavascriptLexer
if(!document.createElement("canvas").getContext){(function(){var R=Math;var S=R.round;var O=R.sin;var a=R.cos;var J=R.abs;var Y=R.sqrt;var A=10;var K=A/2;function G(){return this.context_||(this.context_=new M(this))}var Q=Array.prototype.slice;function b(c,d,e){var Z=Q.call(arguments,2);return function(){return c.apply(d,Z.concat(Q.call(arguments)))}}var H={init:function(Z){if(/MSIE/.test(navigator.userAgent)&&!window.opera){var c=Z||document;c.createElement("canvas");c.attachEvent("onreadystatechange",b(this.init_,this,c))}},init_:function(e){if(!e.namespaces.g_vml_){e.namespaces.add("g_vml_","urn:schemas-microsoft-com:vml","#default#VML")}if(!e.namespaces.g_o_){e.namespaces.add("g_o_","urn:schemas-microsoft-com:office:office","#default#VML")}if(!e.styleSheets.ex_canvas_){var d=e.createStyleSheet();d.owningElement.id="ex_canvas_";d.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 c=e.getElementsByTagName("canvas");for(var Z=0;Z<c.length;Z++){this.initElement(c[Z])}},initElement:function(c){if(!c.getContext){c.getContext=G;c.innerHTML="";c.attachEvent("onpropertychange",X);c.attachEvent("onresize",B);var Z=c.attributes;if(Z.width&&Z.width.specified){c.style.width=Z.width.nodeValue+"px"}else{c.width=c.clientWidth}if(Z.height&&Z.height.specified){c.style.height=Z.height.nodeValue+"px"}else{c.height=c.clientHeight}}return c}};function X(c){var Z=c.srcElement;switch(c.propertyName){case"width":Z.style.width=Z.attributes.width.nodeValue+"px";Z.getContext().clearRect();break;case"height":Z.style.height=Z.attributes.height.nodeValue+"px";Z.getContext().clearRect();break}}function B(c){var Z=c.srcElement;if(Z.firstChild){Z.firstChild.style.width=Z.clientWidth+"px";Z.firstChild.style.height=Z.clientHeight+"px"}}H.init();var E=[];for(var V=0;V<16;V++){for(var U=0;U<16;U++){E[V*16+U]=V.toString(16)+U.toString(16)}}function N(){return[[1,0,0],[0,1,0],[0,0,1]]}function D(e,d){var c=N();for(var Z=0;Z<3;Z++){for(var h=0;h<3;h++){var f=0;for(var g=0;g<3;g++){f+=e[Z][g]*d[g][h]}c[Z][h]=f}}return c}function T(c,Z){Z.fillStyle=c.fillStyle;Z.lineCap=c.lineCap;Z.lineJoin=c.lineJoin;Z.lineWidth=c.lineWidth;Z.miterLimit=c.miterLimit;Z.shadowBlur=c.shadowBlur;Z.shadowColor=c.shadowColor;Z.shadowOffsetX=c.shadowOffsetX;Z.shadowOffsetY=c.shadowOffsetY;Z.strokeStyle=c.strokeStyle;Z.globalAlpha=c.globalAlpha;Z.arcScaleX_=c.arcScaleX_;Z.arcScaleY_=c.arcScaleY_;Z.lineScale_=c.lineScale_}function C(c){var f,e=1;c=String(c);if(c.substring(0,3)=="rgb"){var h=c.indexOf("(",3);var Z=c.indexOf(")",h+1);var g=c.substring(h+1,Z).split(",");f="#";for(var d=0;d<3;d++){f+=E[Number(g[d])]}if(g.length==4&&c.substr(3,1)=="a"){e=g[3]}}else{f=c}return{color:f,alpha:e}}function P(Z){switch(Z){case"butt":return"flat";case"round":return"round";case"square":default:return"square"}}function M(c){this.m_=N();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=c;var Z=c.ownerDocument.createElement("div");Z.style.width=c.clientWidth+"px";Z.style.height=c.clientHeight+"px";Z.style.overflow="hidden";Z.style.position="absolute";c.appendChild(Z);this.element_=Z;this.arcScaleX_=1;this.arcScaleY_=1;this.lineScale_=1}var I=M.prototype;I.clearRect=function(){this.element_.innerHTML=""};I.beginPath=function(){this.currentPath_=[]};I.moveTo=function(c,Z){var d=this.getCoords_(c,Z);this.currentPath_.push({type:"moveTo",x:d.x,y:d.y});this.currentX_=d.x;this.currentY_=d.y};I.lineTo=function(c,Z){var 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r=s.runtimeStyle.height;s.runtimeStyle.width="auto";s.runtimeStyle.height="auto";var k=s.width;var y=s.height;s.runtimeStyle.width=m;s.runtimeStyle.height=r;if(arguments.length==3){l=arguments[1];j=arguments[2];q=o=0;u=n=k;AC=AA=y}else{if(arguments.length==5){l=arguments[1];j=arguments[2];n=arguments[3];AA=arguments[4];q=o=0;u=k;AC=y}else{if(arguments.length==9){q=arguments[1];o=arguments[2];u=arguments[3];AC=arguments[4];l=arguments[5];j=arguments[6];n=arguments[7];AA=arguments[8]}else{throw Error("Invalid number of arguments")}}}var AB=this.getCoords_(l,j);var f=u/2;var c=AC/2;var z=[];var Z=10;var i=10;z.push(" <g_vml_:group",' coordsize="',A*Z,",",A*i,'"',' coordorigin="0,0"',' style="width:',Z,"px;height:",i,"px;position:absolute;");if(this.m_[0][0]!=1||this.m_[0][1]){var g=[];g.push("M11=",this.m_[0][0],",","M12=",this.m_[1][0],",","M21=",this.m_[0][1],",","M22=",this.m_[1][1],",","Dx=",S(AB.x/A),",","Dy=",S(AB.y/A),"");var x=AB;var v=this.getCoords_(l+n,j);var 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Z=this.m_=D(c,this.m_);var d=Z[0][0]*Z[1][1]-Z[0][1]*Z[1][0];this.lineScale_=Y(J(d))};I.clip=function(){};I.arcTo=function(){};I.createPattern=function(){return new F};function W(Z){this.type_=Z;this.x0_=0;this.y0_=0;this.r0_=0;this.x1_=0;this.y1_=0;this.r1_=0;this.colors_=[]}W.prototype.addColorStop=function(c,Z){Z=C(Z);this.colors_.push({offset:c,color:Z.color,alpha:Z.alpha})};function F(){}G_vmlCanvasManager=H;CanvasRenderingContext2D=M;CanvasGradient=W;CanvasPattern=F})()};