17 lines
11 KiB
JavaScript
17 lines
11 KiB
JavaScript
// 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=function(H,m,j,i){var G=this.getCoords_(H,m);var F=this.getCoords_(j,i);var I={x:this.currentX_+2/3*(G.x-this.currentX_),y:this.currentY_+2/3*(G.y-this.currentY_)};var E={x:I.x+(F.x-this.currentX_)/3,y:I.y+(F.y-this.currentY_)/3};o(this,I,E,F)};k.arc=function(K,I,J,F,j,m){J*=a;var O=m?"at":"wa";var L=K+C(F)*J-n;var N=I+r(F)*J-n;var i=K+C(j)*J-n;var M=I+r(j)*J-n;if(L==i&&!m){L+=0.125}var E=this.getCoords_(K,I);var H=this.getCoords_(L,N);var G=this.getCoords_(i,M);this.currentPath_.push({type:O,x:E.x,y:E.y,radius:J,xStart:H.x,yStart:H.y,xEnd:G.x,yEnd:G.y})};k.rect=function(m,j,i,E){this.moveTo(m,j);this.lineTo(m+i,j);this.lineTo(m+i,j+E);this.lineTo(m,j+E);this.closePath()};k.strokeRect=function(m,j,i,E){var F=this.currentPath_;this.beginPath();this.moveTo(m,j);this.lineTo(m+i,j);this.lineTo(m+i,j+E);this.lineTo(m,j+E);this.closePath();this.stroke();this.currentPath_=F};k.fillRect=function(m,j,i,E){var F=this.currentPath_;this.beginPath();this.moveTo(m,j);this.lineTo(m+i,j);this.lineTo(m+i,j+E);this.lineTo(m,j+E);this.closePath();this.fill();this.currentPath_=F};k.createLinearGradient=function(j,E,i,m){var F=new z("gradient");F.x0_=j;F.y0_=E;F.x1_=i;F.y1_=m;return F};k.createRadialGradient=function(E,G,m,j,F,i){var H=new z("gradientradial");H.x0_=E;H.y0_=G;H.r0_=m;H.x1_=j;H.y1_=F;H.r1_=i;return H};k.drawImage=function(R,m){var K,I,M,Z,P,N,T,ab;var L=R.runtimeStyle.width;var Q=R.runtimeStyle.height;R.runtimeStyle.width="auto";R.runtimeStyle.height="auto";var J=R.width;var X=R.height;R.runtimeStyle.width=L;R.runtimeStyle.height=Q;if(arguments.length==3){K=arguments[1];I=arguments[2];P=N=0;T=M=J;ab=Z=X}else{if(arguments.length==5){K=arguments[1];I=arguments[2];M=arguments[3];Z=arguments[4];P=N=0;T=J;ab=X}else{if(arguments.length==9){P=arguments[1];N=arguments[2];T=arguments[3];ab=arguments[4];K=arguments[5];I=arguments[6];M=arguments[7];Z=arguments[8]}else{throw Error("Invalid number of arguments")}}}var aa=this.getCoords_(K,I);var E=T/2;var j=ab/2;var Y=[];var i=10;var G=10;Y.push(" <g_vml_:group",' coordsize="',a*i,",",a*G,'"',' coordorigin="0,0"',' style="width:',i,"px;height:",G,"px;position:absolute;");if(this.m_[0][0]!=1||this.m_[0][1]){var F=[];F.push("M11=",this.m_[0][0],",","M12=",this.m_[1][0],",","M21=",this.m_[0][1],",","M22=",this.m_[1][1],",","Dx=",v(aa.x/a),",","Dy=",v(aa.y/a),"");var V=aa;var U=this.getCoords_(K+M,I);var S=this.getCoords_(K,I+Z);var O=this.getCoords_(K+M,I+Z);V.x=u.max(V.x,U.x,S.x,O.x);V.y=u.max(V.y,U.y,S.y,O.y);Y.push("padding:0 ",v(V.x/a),"px ",v(V.y/a),"px 0;filter:progid:DXImageTransform.Microsoft.Matrix(",F.join(""),", sizingmethod='clip');")}else{Y.push("top:",v(aa.y/a),"px;left:",v(aa.x/a),"px;")}Y.push(' ">','<g_vml_:image src="',R.src,'"',' style="width:',a*M,"px;"," height:",a*Z,'px;"',' cropleft="',P/J,'"',' croptop="',N/X,'"',' cropright="',(J-P-T)/J,'"',' cropbottom="',(X-N-ab)/X,'"'," />","</g_vml_:group>");this.element_.insertAdjacentHTML("BeforeEnd",Y.join(""))};k.stroke=function(ae){var J=[];var K=false;var ap=c(ae?this.fillStyle:this.strokeStyle);var aa=ap.color;var ak=ap.alpha*this.globalAlpha;var F=10;var M=10;J.push("<g_vml_:shape",' filled="',!!ae,'"',' style="position:absolute;width:',F,"px;height:",M,'px;"',' coordorigin="0 0" coordsize="',a*F," ",a*M,'"',' stroked="',!ae,'"',' path="');var L=false;var ao={x:null,y:null};var V={x:null,y:null};for(var aj=0;aj<this.currentPath_.length;aj++){var ai=this.currentPath_[aj];var an;switch(ai.type){case"moveTo":an=ai;J.push(" m ",v(ai.x),",",v(ai.y));break;case"lineTo":J.push(" l ",v(ai.x),",",v(ai.y));break;case"close":J.push(" x ");ai=null;break;case"bezierCurveTo":J.push(" c ",v(ai.cp1x),",",v(ai.cp1y),",",v(ai.cp2x),",",v(ai.cp2y),",",v(ai.x),",",v(ai.y));break;case"at":case"wa":J.push(" ",ai.type," ",v(ai.x-this.arcScaleX_*ai.radius),",",v(ai.y-this.arcScaleY_*ai.radius)," ",v(ai.x+this.arcScaleX_*ai.radius),",",v(ai.y+this.arcScaleY_*ai.radius)," ",v(ai.xStart),",",v(ai.yStart)," ",v(ai.xEnd),",",v(ai.yEnd));break}if(ai){if(ao.x==null||ai.x<ao.x){ao.x=ai.x}if(V.x==null||ai.x>V.x){V.x=ai.x}if(ao.y==null||ai.y<ao.y){ao.y=ai.y}if(V.y==null||ai.y>V.y){V.y=ai.y}}}J.push(' ">');if(!ae){var U=this.lineScale_*this.lineWidth;if(U<1){ak*=U}J.push("<g_vml_:stroke",' opacity="',ak,'"',' joinstyle="',this.lineJoin,'"',' miterlimit="',this.miterLimit,'"',' endcap="',s(this.lineCap),'"',' weight="',U,'px"',' color="',aa,'" />')}else{if(typeof this.fillStyle=="object"){var N=this.fillStyle;var S=0;var ah={x:0,y:0};var ab=0;var Q=1;if(N.type_=="gradient"){var P=N.x0_/this.arcScaleX_;var m=N.y0_/this.arcScaleY_;var O=N.x1_/this.arcScaleX_;var aq=N.y1_/this.arcScaleY_;var am=this.getCoords_(P,m);var al=this.getCoords_(O,aq);var I=al.x-am.x;var G=al.y-am.y;S=Math.atan2(I,G)*180/Math.PI;if(S<0){S+=360}if(S<0.000001){S=0}}else{var am=this.getCoords_(N.x0_,N.y0_);var j=V.x-ao.x;var E=V.y-ao.y;ah={x:(am.x-ao.x)/j,y:(am.y-ao.y)/E};j/=this.arcScaleX_*a;E/=this.arcScaleY_*a;var ag=u.max(j,E);ab=2*N.r0_/ag;Q=2*N.r1_/ag-ab}var Z=N.colors_;Z.sort(function(H,i){return H.offset-i.offset});var T=Z.length;var Y=Z[0].color;var X=Z[T-1].color;var ad=Z[0].alpha*this.globalAlpha;var ac=Z[T-1].alpha*this.globalAlpha;var af=[];for(var aj=0;aj<T;aj++){var R=Z[aj];af.push(R.offset*Q+ab+" "+R.color)}J.push('<g_vml_:fill type="',N.type_,'"',' method="none" focus="100%"',' color="',Y,'"',' color2="',X,'"',' colors="',af.join(","),'"',' opacity="',ac,'"',' g_o_:opacity2="',ad,'"',' angle="',S,'"',' focusposition="',ah.x,",",ah.y,'" />')}else{J.push('<g_vml_:fill color="',aa,'" opacity="',ak,'" />')}}J.push("</g_vml_:shape>");this.element_.insertAdjacentHTML("beforeEnd",J.join(""))};k.fill=function(){this.stroke(true)};k.closePath=function(){this.currentPath_.push({type:"close"})};k.getCoords_=function(E,j){var i=this.m_;return{x:a*(E*i[0][0]+j*i[1][0]+i[2][0])-n,y:a*(E*i[0][1]+j*i[1][1]+i[2][1])-n}};k.save=function(){var i={};w(this,i);this.aStack_.push(i);this.mStack_.push(this.m_);this.m_=d(q(),this.m_)};k.restore=function(){w(this.aStack_.pop(),this);this.m_=this.mStack_.pop()};k.translate=function(m,j){var i=[[1,0,0],[0,1,0],[m,j,1]];this.m_=d(i,this.m_)};k.rotate=function(j){var E=C(j);var m=r(j);var i=[[E,m,0],[-m,E,0],[0,0,1]];this.m_=d(i,this.m_)};k.scale=function(G,F){this.arcScaleX_*=G;this.arcScaleY_*=F;var j=[[G,0,0],[0,F,0],[0,0,1]];var i=this.m_=d(j,this.m_);var E=i[0][0]*i[1][1]-i[0][1]*i[1][0];this.lineScale_=B(l(E))};k.clip=function(){};k.arcTo=function(){};k.createPattern=function(){return new f};function z(i){this.type_=i;this.x0_=0;this.y0_=0;this.r0_=0;this.x1_=0;this.y1_=0;this.r1_=0;this.colors_=[]}z.prototype.addColorStop=function(j,i){i=c(i);this.colors_.push({offset:j,color:i.color,alpha:i.alpha})};function f(){}G_vmlCanvasManager=h;CanvasRenderingContext2D=p;CanvasGradient=z;CanvasPattern=f})()}; |