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- !function(a){function b(b,f){var h=f.Canvas;null==c&&(d=h.prototype.getTextInfo,e=h.prototype.addText,c=h.prototype.render),h.prototype.render=function(){if(!b.getOptions().canvas)return c.call(this);var a=this.context,d=this._textCache;a.save(),a.textBaseline="middle";for(var e in d)if(g.call(d,e)){var f=d[e];for(var h in f)if(g.call(f,h)){var i=f[h],j=!0;for(var k in i)if(g.call(i,k)){var l=i[k],m=l.positions,n=l.lines;j&&(a.fillStyle=l.font.color,a.font=l.font.definition,j=!1);for(var o,p=0;o=m[p];p++)if(o.active)for(var q,r=0;q=o.lines[r];r++)a.fillText(n[r].text,q[0],q[1]);else m.splice(p--,1);0==m.length&&delete i[k]}}}a.restore()},h.prototype.getTextInfo=function(c,e,f,g,h){if(!b.getOptions().canvas)return d.call(this,c,e,f,g,h);var i,j,k,l;if(e=""+e,i="object"==typeof f?f.style+" "+f.variant+" "+f.weight+" "+f.size+"px "+f.family:f,j=this._textCache[c],null==j&&(j=this._textCache[c]={}),k=j[i],null==k&&(k=j[i]={}),l=k[e],null==l){var m=this.context;if("object"!=typeof f){var n=a("<div> </div>").css("position","absolute").addClass("string"==typeof f?f:null).appendTo(this.getTextLayer(c));f={"lineHeight":n.height(),"style":n.css("font-style"),"variant":n.css("font-variant"),"weight":n.css("font-weight"),"family":n.css("font-family"),"color":n.css("color")},f.size=n.css("line-height",1).height(),n.remove()}i=f.style+" "+f.variant+" "+f.weight+" "+f.size+"px "+f.family,l=k[e]={"width":0,"height":0,"positions":[],"lines":[],"font":{"definition":i,"color":f.color}},m.save(),m.font=i;for(var o=(e+"").replace(/<br ?\/?>|\r\n|\r/g,"\n").split("\n"),p=0;p<o.length;++p){var q=o[p],r=m.measureText(q);l.width=Math.max(r.width,l.width),l.height+=f.lineHeight,l.lines.push({"text":q,"width":r.width,"height":f.lineHeight})}m.restore()}return l},h.prototype.addText=function(a,c,d,f,g,h,i,j,k){if(!b.getOptions().canvas)return e.call(this,a,c,d,f,g,h,i,j,k);var l=this.getTextInfo(a,f,g,h,i),m=l.positions,n=l.lines;d+=l.height/n.length/2,d="middle"==k?Math.round(d-l.height/2):"bottom"==k?Math.round(d-l.height):Math.round(d),window.opera&&window.opera.version().split(".")[0]<12&&(d-=2);for(var o,p=0;o=m[p];p++)if(o.x==c&&o.y==d)return void(o.active=!0);o={"active":!0,"lines":[],"x":c,"y":d},m.push(o);for(var q,p=0;q=n[p];p++)"center"==j?o.lines.push([Math.round(c-q.width/2),d]):"right"==j?o.lines.push([Math.round(c-q.width),d]):o.lines.push([Math.round(c),d]),d+=q.height}}var c,d,e,f={"canvas":!0},g=Object.prototype.hasOwnProperty;a.plot.plugins.push({"init":b,"options":f,"name":"canvas","version":"1.0"})}(jQuery);
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