/*
	Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
*/


if(!dojo._hasResource["dojox.gfx.canvas"]){dojo._hasResource["dojox.gfx.canvas"]=true;dojo.provide("dojox.gfx.canvas");dojo.require("dojox.gfx._base");dojo.require("dojox.gfx.shape");dojo.require("dojox.gfx.path");dojo.require("dojox.gfx.arc");dojo.require("dojox.gfx.decompose");dojo.experimental("dojox.gfx.canvas");(function(){var d=dojo,g=dojox.gfx,gs=g.shape,ga=g.arc,m=g.matrix,mp=m.multiplyPoint,pi=Math.PI,_1=2*pi,_2=pi/2;d.extend(g.Shape,{_render:function(_3){_3.save();this._renderTransform(_3);this._renderShape(_3);this._renderFill(_3,true);this._renderStroke(_3,true);_3.restore();},_renderTransform:function(_4){if("canvasTransform" in this){var t=this.canvasTransform;_4.translate(t.dx,t.dy);_4.rotate(t.angle2);_4.scale(t.sx,t.sy);_4.rotate(t.angle1);}},_renderShape:function(_5){},_renderFill:function(_6,_7){if("canvasFill" in this){if("canvasFillImage" in this){this.canvasFill=_6.createPattern(this.canvasFillImage,"repeat");delete this.canvasFillImage;}_6.fillStyle=this.canvasFill;if(_7){_6.fill();}}else{_6.fillStyle="rgba(0,0,0,0.0)";}},_renderStroke:function(_8,_9){var s=this.strokeStyle;if(s){_8.strokeStyle=s.color.toString();_8.lineWidth=s.width;_8.lineCap=s.cap;if(typeof s.join=="number"){_8.lineJoin="miter";_8.miterLimit=s.join;}else{_8.lineJoin=s.join;}if(_9){_8.stroke();}}else{if(!_9){_8.strokeStyle="rgba(0,0,0,0.0)";}}},getEventSource:function(){return null;},connect:function(){},disconnect:function(){}});var _a=function(_b,_c,_d){var _e=_b.prototype[_c];_b.prototype[_c]=_d?function(){this.surface.makeDirty();_e.apply(this,arguments);_d.call(this);return this;}:function(){this.surface.makeDirty();return _e.apply(this,arguments);};};_a(g.Shape,"setTransform",function(){if(this.matrix){this.canvasTransform=g.decompose(this.matrix);}else{delete this.canvasTransform;}});_a(g.Shape,"setFill",function(){var fs=this.fillStyle,f;if(fs){if(typeof (fs)=="object"&&"type" in fs){var _f=this.surface.rawNode.getContext("2d");switch(fs.type){case "linear":case "radial":f=fs.type=="linear"?_f.createLinearGradient(fs.x1,fs.y1,fs.x2,fs.y2):_f.createRadialGradient(fs.cx,fs.cy,0,fs.cx,fs.cy,fs.r);d.forEach(fs.colors,function(_10){f.addColorStop(_10.offset,g.normalizeColor(_10.color).toString());});break;case "pattern":var img=new Image(fs.width,fs.height);this.surface.downloadImage(img,fs.src);this.canvasFillImage=img;}}else{f=fs.toString();}this.canvasFill=f;}else{delete this.canvasFill;}});_a(g.Shape,"setStroke");_a(g.Shape,"setShape");dojo.declare("dojox.gfx.Group",g.Shape,{constructor:function(){gs.Container._init.call(this);},_render:function(ctx){ctx.save();this._renderTransform(ctx);this._renderFill(ctx);this._renderStroke(ctx);for(var i=0;i<this.children.length;++i){this.children[i]._render(ctx);}ctx.restore();}});dojo.declare("dojox.gfx.Rect",gs.Rect,{_renderShape:function(ctx){var s=this.shape,r=Math.min(s.r,s.height/2,s.width/2),xl=s.x,xr=xl+s.width,yt=s.y,yb=yt+s.height,xl2=xl+r,xr2=xr-r,yt2=yt+r,yb2=yb-r;ctx.beginPath();ctx.moveTo(xl2,yt);if(r){ctx.arc(xr2,yt2,r,-_2,0,false);ctx.arc(xr2,yb2,r,0,_2,false);ctx.arc(xl2,yb2,r,_2,pi,false);ctx.arc(xl2,yt2,r,pi,pi+_2,false);}else{ctx.lineTo(xr2,yt);ctx.lineTo(xr,yb2);ctx.lineTo(xl2,yb);ctx.lineTo(xl,yt2);}ctx.closePath();}});var _11=[];(function(){var u=ga.curvePI4;_11.push(u.s,u.c1,u.c2,u.e);for(var a=45;a<360;a+=45){var r=m.rotateg(a);_11.push(mp(r,u.c1),mp(r,u.c2),mp(r,u.e));}})();dojo.declare("dojox.gfx.Ellipse",gs.Ellipse,{setShape:function(){g.Ellipse.superclass.setShape.apply(this,arguments);var s=this.shape,t,c1,c2,r=[],M=m.normalize([m.translate(s.cx,s.cy),m.scale(s.rx,s.ry)]);t=mp(M,_11[0]);r.push([t.x,t.y]);for(var i=1;i<_11.length;i+=3){c1=mp(M,_11[i]);c2=mp(M,_11[i+1]);t=mp(M,_11[i+2]);r.push([c1.x,c1.y,c2.x,c2.y,t.x,t.y]);}this.canvasEllipse=r;return this;},_renderShape:function(ctx){var r=this.canvasEllipse;ctx.beginPath();ctx.moveTo.apply(ctx,r[0]);for(var i=1;i<r.length;++i){ctx.bezierCurveTo.apply(ctx,r[i]);}ctx.closePath();}});dojo.declare("dojox.gfx.Circle",gs.Circle,{_renderShape:function(ctx){var s=this.shape;ctx.beginPath();ctx.arc(s.cx,s.cy,s.r,0,_1,1);}});dojo.declare("dojox.gfx.Line",gs.Line,{_renderShape:function(ctx){var s=this.shape;ctx.beginPath();ctx.moveTo(s.x1,s.y1);ctx.lineTo(s.x2,s.y2);}});dojo.declare("dojox.gfx.Polyline",gs.Polyline,{setShape:function(){g.Polyline.superclass.setShape.apply(this,arguments);var p=this.shape.points,f=p[0],r=[],c,i;if(p.length){if(typeof f=="number"){r.push(f,p[1]);i=2;}else{r.push(f.x,f.y);i=1;}for(;i<p.length;++i){c=p[i];if(typeof c=="number"){r.push(c,p[++i]);}else{r.push(c.x,c.y);}}}this.canvasPolyline=r;return this;},_renderShape:function(ctx){var p=this.canvasPolyline;if(p.length){ctx.beginPath();ctx.moveTo(p[0],p[1]);for(var i=2;i<p.length;i+=2){ctx.lineTo(p[i],p[i+1]);}}}});dojo.declare("dojox.gfx.Image",gs.Image,{setShape:function(){g.Image.superclass.setShape.apply(this,arguments);var img=new Image();this.surface.downloadImage(img,this.shape.src);this.canvasImage=img;return this;},_renderShape:function(ctx){var s=this.shape;ctx.drawImage(this.canvasImage,s.x,s.y,s.width,s.height);}});dojo.declare("dojox.gfx.Text",gs.Text,{_renderShape:function(ctx){var s=this.shape;}});_a(g.Text,"setFont");var _12={M:"_moveToA",m:"_moveToR",L:"_lineToA",l:"_lineToR",H:"_hLineToA",h:"_hLineToR",V:"_vLineToA",v:"_vLineToR",C:"_curveToA",c:"_curveToR",S:"_smoothCurveToA",s:"_smoothCurveToR",Q:"_qCurveToA",q:"_qCurveToR",T:"_qSmoothCurveToA",t:"_qSmoothCurveToR",A:"_arcTo",a:"_arcTo",Z:"_closePath",z:"_closePath"};dojo.declare("dojox.gfx.Path",g.path.Path,{constructor:function(){this.lastControl={};},setShape:function(){this.canvasPath=[];return g.Path.superclass.setShape.apply(this,arguments);},_updateWithSegment:function(_13){var _14=d.clone(this.last);this[_12[_13.action]](this.canvasPath,_13.action,_13.args);this.last=_14;g.Path.superclass._updateWithSegment.apply(this,arguments);},_renderShape:function(ctx){var r=this.canvasPath;ctx.beginPath();for(var i=0;i<r.length;i+=2){ctx[r[i]].apply(ctx,r[i+1]);}},_moveToA:function(_15,_16,_17){_15.push("moveTo",[_17[0],_17[1]]);for(var i=2;i<_17.length;i+=2){_15.push("lineTo",[_17[i],_17[i+1]]);}this.last.x=_17[_17.length-2];this.last.y=_17[_17.length-1];this.lastControl={};},_moveToR:function(_18,_19,_1a){if("x" in this.last){_18.push("moveTo",[this.last.x+=_1a[0],this.last.y+=_1a[1]]);}else{_18.push("moveTo",[this.last.x=_1a[0],this.last.y=_1a[1]]);}for(var i=2;i<_1a.length;i+=2){_18.push("lineTo",[this.last.x+=_1a[i],this.last.y+=_1a[i+1]]);}this.lastControl={};},_lineToA:function(_1b,_1c,_1d){for(var i=0;i<_1d.length;i+=2){_1b.push("lineTo",[_1d[i],_1d[i+1]]);}this.last.x=_1d[_1d.length-2];this.last.y=_1d[_1d.length-1];this.lastControl={};},_lineToR:function(_1e,_1f,_20){for(var i=0;i<_20.length;i+=2){_1e.push("lineTo",[this.last.x+=_20[i],this.last.y+=_20[i+1]]);}this.lastControl={};},_hLineToA:function(_21,_22,_23){for(var i=0;i<_23.length;++i){_21.push("lineTo",[_23[i],this.last.y]);}this.last.x=_23[_23.length-1];this.lastControl={};},_hLineToR:function(_24,_25,_26){for(var i=0;i<_26.length;++i){_24.push("lineTo",[this.last.x+=_26[i],this.last.y]);}this.lastControl={};},_vLineToA:function(_27,_28,_29){for(var i=0;i<_29.length;++i){_27.push("lineTo",[this.last.x,_29[i]]);}this.last.y=_29[_29.length-1];this.lastControl={};},_vLineToR:function(_2a,_2b,_2c){for(var i=0;i<_2c.length;++i){_2a.push("lineTo",[this.last.x,this.last.y+=_2c[i]]);}this.lastControl={};},_curveToA:function(_2d,_2e,_2f){for(var i=0;i<_2f.length;i+=6){_2d.push("bezierCurveTo",_2f.slice(i,i+6));}this.last.x=_2f[_2f.length-2];this.last.y=_2f[_2f.length-1];this.lastControl.x=_2f[_2f.length-4];this.lastControl.y=_2f[_2f.length-3];this.lastControl.type="C";},_curveToR:function(_30,_31,_32){for(var i=0;i<_32.length;i+=6){_30.push("bezierCurveTo",[this.last.x+_32[i],this.last.y+_32[i+1],this.lastControl.x=this.last.x+_32[i+2],this.lastControl.y=this.last.y+_32[i+3],this.last.x+_32[i+4],this.last.y+_32[i+5]]);this.last.x+=_32[i+4];this.last.y+=_32[i+5];}this.lastControl.type="C";},_smoothCurveToA:function(_33,_34,_35){for(var i=0;i<_35.length;i+=4){var _36=this.lastControl.type=="C";_33.push("bezierCurveTo",[_36?2*this.last.x-this.lastControl.x:this.last.x,_36?2*this.last.y-this.lastControl.y:this.last.y,_35[i],_35[i+1],_35[i+2],_35[i+3]]);this.lastControl.x=_35[i];this.lastControl.y=_35[i+1];this.lastControl.type="C";}this.last.x=_35[_35.length-2];this.last.y=_35[_35.length-1];},_smoothCurveToR:function(_37,_38,_39){for(var i=0;i<_39.length;i+=4){var _3a=this.lastControl.type=="C";_37.push("bezierCurveTo",[_3a?2*this.last.x-this.lastControl.x:this.last.x,_3a?2*this.last.y-this.lastControl.y:this.last.y,this.last.x+_39[i],this.last.y+_39[i+1],this.last.x+_39[i+2],this.last.y+_39[i+3]]);this.lastControl.x=this.last.x+_39[i];this.lastControl.y=this.last.y+_39[i+1];this.lastControl.type="C";this.last.x+=_39[i+2];this.last.y+=_39[i+3];}},_qCurveToA:function(_3b,_3c,_3d){for(var i=0;i<_3d.length;i+=4){_3b.push("quadraticCurveTo",_3d.slice(i,i+4));}this.last.x=_3d[_3d.length-2];this.last.y=_3d[_3d.length-1];this.lastControl.x=_3d[_3d.length-4];this.lastControl.y=_3d[_3d.length-3];this.lastControl.type="Q";},_qCurveToR:function(_3e,_3f,_40){for(var i=0;i<_40.length;i+=4){_3e.push("quadraticCurveTo",[this.lastControl.x=this.last.x+_40[i],this.lastControl.y=this.last.y+_40[i+1],this.last.x+_40[i+2],this.last.y+_40[i+3]]);this.last.x+=_40[i+2];this.last.y+=_40[i+3];}this.lastControl.type="Q";},_qSmoothCurveToA:function(_41,_42,_43){for(var i=0;i<_43.length;i+=2){var _44=this.lastControl.type=="Q";_41.push("quadraticCurveTo",[this.lastControl.x=_44?2*this.last.x-this.lastControl.x:this.last.x,this.lastControl.y=_44?2*this.last.y-this.lastControl.y:this.last.y,_43[i],_43[i+1]]);this.lastControl.type="Q";}this.last.x=_43[_43.length-2];this.last.y=_43[_43.length-1];},_qSmoothCurveToR:function(_45,_46,_47){for(var i=0;i<_47.length;i+=2){var _48=this.lastControl.type=="Q";_45.push("quadraticCurveTo",[this.lastControl.x=_48?2*this.last.x-this.lastControl.x:this.last.x,this.lastControl.y=_48?2*this.last.y-this.lastControl.y:this.last.y,this.last.x+_47[i],this.last.y+_47[i+1]]);this.lastControl.type="Q";this.last.x+=_47[i];this.last.y+=_47[i+1];}},_arcTo:function(_49,_4a,_4b){var _4c=_4a=="a";for(var i=0;i<_4b.length;i+=7){var x1=_4b[i+5],y1=_4b[i+6];if(_4c){x1+=this.last.x;y1+=this.last.y;}var _4d=ga.arcAsBezier(this.last,_4b[i],_4b[i+1],_4b[i+2],_4b[i+3]?1:0,_4b[i+4]?1:0,x1,y1);d.forEach(_4d,function(p){_49.push("bezierCurveTo",p);});this.last.x=x1;this.last.y=y1;}this.lastControl={};},_closePath:function(_4e,_4f,_50){_4e.push("closePath",[]);this.lastControl={};}});d.forEach(["moveTo","lineTo","hLineTo","vLineTo","curveTo","smoothCurveTo","qCurveTo","qSmoothCurveTo","arcTo","closePath"],function(_51){_a(g.Path,_51);});dojo.declare("dojox.gfx.TextPath",g.path.TextPath,{_renderShape:function(ctx){var s=this.shape;}});dojo.declare("dojox.gfx.Surface",gs.Surface,{constructor:function(){gs.Container._init.call(this);this.pendingImageCount=0;this.makeDirty();},setDimensions:function(_52,_53){this.width=g.normalizedLength(_52);this.height=g.normalizedLength(_53);if(!this.rawNode){return this;}this.rawNode.width=_52;this.rawNode.height=_53;this.makeDirty();return this;},getDimensions:function(){return this.rawNode?{width:this.rawNode.width,height:this.rawNode.height}:null;},_render:function(){if(this.pendingImageCount){return;}var ctx=this.rawNode.getContext("2d");ctx.save();ctx.clearRect(0,0,this.rawNode.width,this.rawNode.height);for(var i=0;i<this.children.length;++i){this.children[i]._render(ctx);}ctx.restore();if("pendingRender" in this){clearTimeout(this.pendingRender);delete this.pendingRender;}},makeDirty:function(){if(!this.pendingImagesCount&&!("pendingRender" in this)){this.pendingRender=setTimeout(d.hitch(this,this._render),0);}},downloadImage:function(img,url){var _54=d.hitch(this,this.onImageLoad);if(!this.pendingImageCount++&&"pendingRender" in this){clearTimeout(this.pendingRender);delete this.pendingRender;}img.onload=_54;img.onerror=_54;img.onabort=_54;img.src=url;},onImageLoad:function(){if(!--this.pendingImageCount){this._render();}},getEventSource:function(){return null;},connect:function(){},disconnect:function(){}});g.createSurface=function(_55,_56,_57){if(!_56&&!_57){var pos=d.position(_55);_56=_56||pos.w;_57=_57||pos.h;}if(typeof _56=="number"){_56=_56+"px";}if(typeof _57=="number"){_57=_57+"px";}var s=new g.Surface(),p=d.byId(_55),c=p.ownerDocument.createElement("canvas");c.width=dojox.gfx.normalizedLength(_56);c.height=dojox.gfx.normalizedLength(_57);p.appendChild(c);s.rawNode=c;s._parent=p;s.surface=s;return s;};var C=gs.Container,_58={add:function(_59){this.surface.makeDirty();return C.add.apply(this,arguments);},remove:function(_5a,_5b){this.surface.makeDirty();return C.remove.apply(this,arguments);},clear:function(){this.surface.makeDirty();return C.clear.apply(this,arguments);},_moveChildToFront:function(_5c){this.surface.makeDirty();return C._moveChildToFront.apply(this,arguments);},_moveChildToBack:function(_5d){this.surface.makeDirty();return C._moveChildToBack.apply(this,arguments);}};d.mixin(gs.Creator,{createObject:function(_5e,_5f){var _60=new _5e();_60.surface=this.surface;_60.setShape(_5f);this.add(_60);return _60;}});d.extend(g.Group,_58);d.extend(g.Group,gs.Creator);d.extend(g.Surface,_58);d.extend(g.Surface,gs.Creator);})();}