15 lines
18 KiB
JavaScript
15 lines
18 KiB
JavaScript
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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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document.createElement("canvas").getContext||function(){function j(){return this.context_||(this.context_=new N(this))}function l(a,b){var d=k.call(arguments,2);return function(){return a.apply(b,d.concat(k.call(arguments)))}}function m(a){return String(a).replace(/&/g,"&").replace(/"/g,""")}function n(a,b,c){a.namespaces[b]||a.namespaces.add(b,c,"#default#VML")}function o(a){if(n(a,"g_vml_","urn:schemas-microsoft-com:vml"),n(a,"g_o_","urn:schemas-microsoft-com:office:office"),!a.styleSheets["ex_canvas_"]){var b=a.createStyleSheet();b.owningElement.id="ex_canvas_",b.cssText="canvas{display:inline-block;overflow:hidden;text-align:left;width:300px;height:150px}"}}function q(a){var b=a.srcElement;switch(a.propertyName){case"width":b.getContext().clearRect(),b.style.width=b.attributes.width.nodeValue+"px",b.firstChild.style.width=b.clientWidth+"px";break;case"height":b.getContext().clearRect(),b.style.height=b.attributes.height.nodeValue+"px",b.firstChild.style.height=b.clientHeight+"px"}}function r(a){var b=a.srcElement;b.firstChild&&(b.firstChild.style.width=b.clientWidth+"px",b.firstChild.style.height=b.clientHeight+"px")}function v(){return[[1,0,0],[0,1,0],[0,0,1]]}function w(a,b){var d,e,f,g,c=v();for(d=0;3>d;d++)for(e=0;3>e;e++){for(f=0,g=0;3>g;g++)f+=a[d][g]*b[g][e];c[d][e]=f}return c}function x(a,b){b.fillStyle=a.fillStyle,b.lineCap=a.lineCap,b.lineJoin=a.lineJoin,b.lineWidth=a.lineWidth,b.miterLimit=a.miterLimit,b.shadowBlur=a.shadowBlur,b.shadowColor=a.shadowColor,b.shadowOffsetX=a.shadowOffsetX,b.shadowOffsetY=a.shadowOffsetY,b.strokeStyle=a.strokeStyle,b.globalAlpha=a.globalAlpha,b.font=a.font,b.textAlign=a.textAlign,b.textBaseline=a.textBaseline,b.arcScaleX_=a.arcScaleX_,b.arcScaleY_=a.arcScaleY_,b.lineScale_=a.lineScale_}function z(a){var b=a.indexOf("(",3),c=a.indexOf(")",b+1),d=a.substring(b+1,c).split(",");return(4!=d.length||"a"!=a.charAt(3))&&(d[3]=1),d}function A(a){return parseFloat(a)/100}function B(a,b,c){return Math.min(c,Math.max(b,a))}function C(a){var b,c,d,f,g,h,i,e=parseFloat(a[0])/360%360;return 0>e&&e++,f=B(A(a[1]),0,1),g=B(A(a[2]),0,1),0==f?b=c=d=g:(h=.5>g?g*(1+f):g+f-g*f,i=2*g-h,b=D(i,h,e+1/3),c=D(i,h,e),d=D(i,h,e-1/3)),"#"+s[Math.floor(255*b)]+s[Math.floor(255*c)]+s[Math.floor(255*d)]}function D(a,b,c){return 0>c&&c++,c>1&&c--,1>6*c?a+6*(b-a)*c:1>2*c?b:2>3*c?a+6*(b-a)*(2/3-c):a}function F(a){var b,c,d,e,f;if(a in E)return E[a];if(c=1,a=String(a),"#"==a.charAt(0))b=a;else if(/^rgb/.test(a)){for(d=z(a),b="#",f=0;3>f;f++)e=-1!=d[f].indexOf("%")?Math.floor(255*A(d[f])):+d[f],b+=s[B(e,0,255)];c=+d[3]}else/^hsl/.test(a)?(d=z(a),b=C(d),c=d[3]):b=y[a]||a;return E[a]={color:b,alpha:c}}function I(a){var b,c;if(H[a])return H[a];b=document.createElement("div"),c=b.style;try{c.font=a}catch(d){}return H[a]={style:c.fontStyle||G.style,variant:c.fontVariant||G.variant,weight:c.fontWeight||G.weight,size:c.fontSize||G.size,family:c.fontFamily||G.family}}function J(a,b){var d,e,f,c={};for(d in a)c[d]=a[d];return e=parseFloat(b.currentStyle.fontSize),f=parseFloat(a.size),c.size="number"==typeof a.size?a.size:-1!=a.size.indexOf("px")?f:-1!=a.size.indexOf("em")?e*f:-1!=a.size.indexOf("%")?e/100*f:-1!=a.size.indexOf("pt")?f/.75:e,c.size*=.981,c}function K(a){return a.style+" "+a.variant+" "+a.weight+" "+a.size+"px "+a.family}function M(a){return L[a]||"square"}function N(a){var b,c,d;this.m_=v(),this.mStack_=[],this.aStack_=[],this.currentPath_=[],this.strokeStyle="#000",this.fillStyle="#000",this.lineWidth=1,this.lineJoin="miter",this.lineCap="butt",this.miterLimit=1*g,this.globalAlpha=1,this.font="10px sans-serif",this.textAlign="left",this.textBaseline="alphabetic",this.canvas=a,b="width:"+a.clientWidth+"px;height:"+a.clientHeight+"px;overflow:hidden;position:absolute",c=a.ownerDocument.createElement("div"),c.style.cssText=b,a.appendChild(c),d=c.cloneNode(!1),d.style.backgroundColor="red",d.style.filter="alpha(opacity=0)",a.appendChild(d),this.element_=c,this.arcScaleX_=1,this.arcScaleY_=1,this.lineScale_=1}function P(a,b,c,d){a.currentPath_.push({type:"bezierCurveTo",cp1x:b.x,cp1y:b.y,cp2x:c.x,cp2y:c
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