(function(root,factory){factory(root.jQuery);}(this,function($){"use strict";var CanvasRenderer=function(element,options){var cachedBackground;var canvas=document.createElement('canvas');element.appendChild(canvas);var ctx=canvas.getContext('2d');canvas.width=canvas.height=options.size;ctx.translate(options.size/2,options.size/2);ctx.rotate((-1/2+options.rotate/180)*Math.PI);var radius=(options.size-options.lineWidth)/2;Date.now=Date.now||function(){return+(new Date());};var drawCircle=function(color,lineWidth,percent){percent=Math.min(Math.max(-1,percent||0),1);var isNegative=percent<=0?true:false;ctx.beginPath();ctx.arc(0,0,radius,0,Math.PI*2*percent,isNegative);ctx.strokeStyle=color;ctx.lineWidth=lineWidth;ctx.stroke();};var reqAnimationFrame=(function(){return window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||function(callback){window.setTimeout(callback,1000/60);};}());var drawBackground=function(){if(options.trackColor)drawCircle(options.trackColor,options.lineWidth,1);};this.clear=function(){ctx.clearRect(options.size/-2,options.size/-2,options.size,options.size);};this.draw=function(percent){if(!!options.trackColor){if(ctx.getImageData&&ctx.putImageData){if(!cachedBackground){drawBackground();cachedBackground=ctx.getImageData(0,0,options.size,options.size);}else{ctx.putImageData(cachedBackground,0,0);}}else{this.clear();drawBackground();}}else{this.clear();}
ctx.lineCap=options.lineCap;drawCircle(options.barColor,options.lineWidth,percent/100);}.bind(this);this.animate=function(from,to){var startTime=Date.now();var animation=function(){var process=Math.min(Date.now()-startTime,options.animate.duration);var currentValue=options.easing(this,process,from,to-from,options.animate.duration);this.draw(currentValue);options.onStep(from,to,currentValue);reqAnimationFrame(animation);}.bind(this);reqAnimationFrame(animation);}.bind(this);};var pieChart=function(element,userOptions){var defaultOptions={barColor:'#ef1e25',trackColor:'#f9f9f9',lineCap:'round',lineWidth:3,size:150,rotate:0,animate:{duration:1000,enabled:true},easing:function(x,t,b,c,d){t=t/(d/2);if(t<1){return c/2*t*t+b;}
return-c/2*((--t)*(t-2)-1)+b;},onStep:function(from,to,currentValue){return;},renderer:CanvasRenderer};var options={};var currentValue=0;var init=function(){this.element=element;this.options=options;for(var i in defaultOptions){if(defaultOptions.hasOwnProperty(i)){options[i]=userOptions&&typeof(userOptions[i])!=='undefined'?userOptions[i]:defaultOptions[i];if(typeof(options[i])==='function'){options[i]=options[i].bind(this);}}}
if(typeof(options.easing)==='string'&&typeof(jQuery)!=='undefined'&&jQuery.isFunction(jQuery.easing[options.easing])){options.easing=jQuery.easing[options.easing];}else{options.easing=defaultOptions.easing;}
this.renderer=new options.renderer(element,options);this.renderer.draw(currentValue);if(element.getAttribute&&element.getAttribute('data-percent')){var newValue=parseFloat(element.getAttribute('data-percent'));if(options.animate.enabled){this.renderer.animate(currentValue,newValue);}else{this.renderer.draw(newValue);}
currentValue=newValue;}}.bind(this)();};$.fn.pieChart=function(options){return this.each(function(){if(!$.data(this,'pieChart')){var userOptions=$.extend({},options,$(this).data());$.data(this,'pieChart',new pieChart(this,userOptions));}});};}));