/**
 * @author Leechy (leechy@leechy.ru)
 * @copyright Art.Lebedev Studio (http://www.artlebedev.ru/tools/technogrette/js/gradient-text/)
 * @requires jQuery
 *
 * Description:
 * gradientText is a jQuery plugin that paints text in gradient colors
 *
 * Usage:
 * $(selector).gradientText(config);
 *
 * config is an object contents configuraton paramenters:
 * 	{Array} colors - array of hex colors, e.g. ['#000000', '#FFFFFF'];
 * 	{Array} toProcess - array of jQuery selectors, matched elements will be toProcessed
 */

/* gradientText - compressed with http://dean.edwards.name/packer/ */
(function($){$.gradientText=$.gradientText||{version:'1.0'};$.gradientText.conf={colors:['#5f3db6','#c10000'],toProcess:[]};$.gradientTextSetup=function(conf){$.extend($.gradientText.conf,conf)};$.fn.gradientText=function(conf){var el=this.data("gradientText");if(el){return el}if(!conf){conf=$.gradientText.conf}else{if(typeof(conf.colors)=='undefined'){conf.colors=$.gradientText.conf.colors}}var aLetters=[];this.each(function(i){aLetters[i]=new GradientLetters($(this),conf);$(this).data("gradientText",aLetters[i])});$(window).load(function(){var iLetters_amount=aLetters.length;for(var i=0;i<iLetters_amount;i++){aLetters[i].update()}});return conf.api?el:this};function GradientLetters(jContainer,conf){if(jContainer.find('span.gr-text').size()==0){var jTextNodes=jContainer.contents().filter(function(){return(this.nodeType==3&&/\S/.test(this.nodeValue))}).wrap('<span class="gr-text" />');if(typeof(conf.toProcess)!='undefined'){var tags=conf.toProcess.toString();if(tags){jTextNodes=jContainer.find(tags).contents().filter(function(){return(this.nodeType==3&&/\S/.test(this.nodeValue))}).wrap('<span class="gr-text" />')}}jContainer.html('<span class="gr-wrap">'+jContainer.html()+'</span>');jContainer=jContainer.find('.gr-wrap');jContainer.find('span.gr-text').each(function(){var aText=$(this).text().split('');var sHTML='';var iText_amount=aText.length;for(var i=0;i<iText_amount;i++){if(aText[i]!=' '){sHTML+='<span class="gr-letter">'+aText[i]+'</span>'}else{sHTML+='<span class="gr-letter"><span style="display:none;">&#8203;</span> </span>'}}$(this).html(sHTML)})}var jWords=jContainer.find('span.gr-text');var jLetters=jContainer.find('span.gr-letter');var iHeight=0;conf.RGBcolors=[];for(var i=0;i<conf.colors.length;i++)conf.RGBcolors[i]=hex2Rgb(conf.colors[i]);if(typeof($c)!='undefined')$c.measurer.bind(updateColors);else if(typeof($measurer)!='undefined')$measurer.bind(updateColors);else $(window).resize(updateColors);PaintUnderlines();function updateColors(){var iRootLeftOffset=Math.round(jContainer[0].offsetLeft),iRootWidth=getMaxRootWidth(iRootLeftOffset),jLetters_amount=jLetters.size();if(iRootWidth<200)iRootWidth=200;for(var i=jLetters_amount;i--;){jLetters[i].style.color=getColor(Math.round(jLetters[i].offsetLeft-iRootLeftOffset),iRootWidth)}}function getMaxRootWidth(iRootLeftOffset){var iMaxWidth=0;jWords.each(function(index){var iRightEdge=Math.round(this.offsetWidth+this.offsetLeft)-iRootLeftOffset;if(iRightEdge>iMaxWidth)iMaxWidth=iRightEdge});return iMaxWidth}function getColor(iLeftOffset,iRootWidth){var fLeft=(iLeftOffset>0)?(iLeftOffset/iRootWidth):0;for(var i=0;i<conf.colors.length;i++){fStopPosition=(i/(conf.colors.length-1));fLastPosition=(i>0)?((i-1)/(conf.colors.length-1)):0;if(fLeft==fStopPosition){return conf.colors[i]}else if(fLeft<fStopPosition){fCurrentStop=(fLeft-fLastPosition)/(fStopPosition-fLastPosition);return getMidColor(conf.RGBcolors[i-1],conf.RGBcolors[i],fCurrentStop)}}return conf.colors[conf.colors.length-1]}function getMidColor(aStart,aEnd,fMidStop){var aRGBColor=[];for(var i=0;i<3;i++){aRGBColor[i]=aStart[i]+Math.round((aEnd[i]-aStart[i])*fMidStop)}return rgb2Hex(aRGBColor)}function PaintUnderlines(){jContainer.find('.gr-text').each(function(){if($(this).parent().css('text-decoration')=='underline'){$(this).parent().find('.gr-letter').css('text-decoration','underline')}});if(jContainer.parent().css('text-decoration')=='underline'){jContainer.find('.gr-letter').css('text-decoration','underline')}}return{update:updateColors}}function hex2Rgb(hex){if('#'==hex.substr(0,1)){hex=hex.substr(1)}if(3==hex.length){hex=hex.substr(0,1)+hex.substr(0,1)+hex.substr(1,1)+hex.substr(1,1)+hex.substr(2,1)+hex.substr(2,1)}return[parseInt(hex.substr(0,2),16),parseInt(hex.substr(2,2),16),parseInt(hex.substr(4,2),16)]}function rgb2Hex(rgb){var s='0123456789abcdef';return'#'+s.charAt(parseInt(rgb[0]/16))+s.charAt(rgb[0]%16)+s.charAt(parseInt(rgb[1]/16))+s.charAt(rgb[1]%16)+s.charAt(parseInt(rgb[2]/16))+s.charAt(rgb[2]%16)}})(jQuery);