/*!
 * slideViewerPro 1.0
 * Examples and documentation at:
 * http://www.gcmingati.net/wordpress/wp-content/lab/jquery/svwt/
 * 2009 Gian Carlo Mingati
 * Version: 1.0.4 (12-AUGUST-2009)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 * Requires:
 * jQuery v1.3.2 or later
 * Option:
 * jQuery Timers plugin | plugins.jquery.com/project/timers (for autoslide mode)
 *
 */
jQuery.extend( jQuery.easing, // from the jquery.easing plugin
{
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	}
});
jQuery(function(){
   jQuery("div.svwp").prepend("<img src='/sys6_shared/gfx/modules/gallery_ng/loading.gif' class='ldrgif' alt='loading...'/ >"); //change with YOUR loader image path
});
var j = 0;
jQuery.fn.slideViewerPro = function(settings) {
	  settings = jQuery.extend({
			galBorderWidth: 6,
			thumbsTopMargin: 8,
			thumbsRightMargin: 4,
			thumbsBorderWidth: 3,
			buttonsWidth: 40,
			galBorderColor: "#ff0000",
			thumbsBorderColor: "#d8d8d8",
			thumbsActiveBorderColor: "#ff0000",
			buttonsTextColor: "#ff0000",
			thumbsBorderOpacity: 1.0, // could be 0, 0.1 up to 1.0
			thumbsActiveBorderOpacity: 1.0, // could be 0, 0.1 up to 1.0
			easeTime: 750,
			asTimer: 4000,
			thumbs: 5,
			thumbsPercentReduction: 12,
			thumbsVis: true,
			easeFunc: "easeInOutExpo",
			leftButtonInner: "-", //could be an image "<img src='images/larw.gif' />" or an escaped char as "&larr";
			rightButtonInner: "+", //could be an image or an escaped char as "&rarr";
			autoslide: false,
			typo: false,
			typoFullOpacity: 0.9,
			shuffle: false,
			pictMaxHeight: 0,
			totalMaxHeight: 0,
			thumbsExtraSpace: 0,
			imgSize: 0
		}, settings);

	return this.each(function(){
		function shuffle(a) {
	    var i = a.size();
	    while (--i) {
	        var j = Math.floor(Math.random() * (i));
	        var tmp = a.slice(i, i+1);
	        a.slice(j, j+1).insertAfter(tmp);
	    }
		}
		var container = jQuery(this);
		(!settings.shuffle) ? null : shuffle(container.find("li"));
		container.find("img.ldrgif").remove();
		container.removeClass("svwp").addClass("slideViewer");
		container.attr("id", "svwp"+j);
		//var pictWidth = container.find("img").attr("width");
		var pictWidth = settings.imgSize;
		var pictHeight = container.find("img").attr("height");
		var pictEls = container.find("li").size();
		(pictEls >= settings.thumbs) ? null : settings.thumbs = pictEls;
		var slideViewerWidth = pictWidth*pictEls;
		var thumbsWidth = Math.round(pictWidth*settings.thumbsPercentReduction/100);
		var thumbsHeight =  Math.round(pictHeight*settings.thumbsPercentReduction/100);
		//var thumbsMaxHeight =  Math.round(pictMaxHeight*settings.thumbsPercentReduction/100);
		var pos = 0;
		var r_enabled = true;
		var l_enabled = true;

//pictWidth = 500;
//slideViewerWidth = pictWidth*pictEls;
    container.find("ul").css("width" , slideViewerWidth)
    .wrap(jQuery("<div style='width:"+ pictWidth +"px; overflow: hidden; position: relative; top: 0; left: 0'>"));
		container.css("width" , pictWidth);
		//container.css("height" , pictMaxHeight);
		container.each(function(i) {
			if(settings.typo)
			{
			jQuery(this).find("img").each(function(z) {
				var typo_width = jQuery(this).find("img").width();
				jQuery(this).after("<span class='typo' style='position: absolute; width:"+(typo_width-12)+"px; margin: 0 0 0 -"+pictWidth+"px'>"+jQuery(this).attr("alt")+"<\/span>");
				//jQuery(this).after("<span class='typo' style='position: absolute; width:"+(pictWidth-12)+"px; margin: 0 0 0 -"+pictWidth+"px'>"+jQuery(this).attr("alt")+"<\/span>");
			});
			}

			// Get max picture height and total height
			jQuery(this).find("img").each(function(q) {
				h = jQuery(this).height();
				if (h > settings.pictMaxHeight) {
					settings.pictMaxHeight = h;
				}
				//console.log(jQuery(this).closest("div").find("span.typo").innerHeight());
				th = jQuery(this).closest("div").find("span.svtypo").innerHeight();
				//console.log(th);
				if ((h+th+2) > settings.totalMaxHeight) {
					settings.totalMaxHeight = h+th+2;
				}
			});


			//console.log(settings.totalMaxHeight);

			container.css("height" , settings.totalMaxHeight);
			//container.css("height" , settings.pictMaxHeight + 50);
			thumbsHeight = Math.round(settings.pictMaxHeight*settings.thumbsPercentReduction/100);

thumbsHeight = 50;

			jQuery(this).after("<div class='thumbSlider' id='thumbSlider" + j + "'><ul><\/ul><\/div>");
			jQuery(this).next().after("<a href='#' class='left' id='left" + j + "'><span>"+settings.leftButtonInner+"</span><\/a><a href='#' class='right' id='right" + j + "'><span>"+settings.rightButtonInner+"<\/span><\/a>");

			jQuery(this).find("li").each(function(n) {
						// dep var thumb_margin = parseInt(jQuery(this).find("img").css("margin-top"));
						// dep thumb_margin = Math.round(thumb_margin*settings.thumbsPercentReduction/100);
						var real_height = jQuery(this).find("img").height();
						var real_width = jQuery(this).find("img").width();
						//thumb_height = Math.round(real_height*settings.thumbsPercentReduction/100);

						var thumb_width = jQuery(this).find("img").width();
						thumb_width = Math.round(thumb_width*settings.thumbsPercentReduction/100);

						//var thumb_height = Math.round(settings.pictMaxHeight*settings.thumbsPercentReduction/100);
						var thumb_height =50;
						var thumb_left = Math.round(((real_width*thumb_height/real_height)-thumb_height)/2);
						thumbsWidth = thumb_height;
						if (jQuery.support.boxModel) {
							thumb_height = thumb_height - 2;
						}
						jQuery("div#thumbSlider" + j + " ul").append("<li><div class='picframe' style=\"height: " + thumb_height + "px; width: " + thumb_height + "px; border: 1px solid; border-color: #ffffff;\"><a class='tmblnk' title='" + jQuery(this).find("img").attr("title") + "' href='#'><img height='"+ thumb_height +"'style=\"position: relative; left: -" + thumb_left + "px;\" src='" + jQuery(this).find("img").attr("src") + "' /><\/a></div><\/li>");
						//jQuery("div#thumbSlider" + j + " ul").append("<li><a title='" + jQuery(this).find("img").attr("alt") + "' href='#'><img width='"+ thumbsWidth +"' height='"+ thumbsHeight +"' src='" + jQuery(this).find("img").attr("src") + "' /><p class='tmbrdr'>&nbsp;<\/p><\/a><\/li>");
			});

			jQuery("div#thumbSlider" + j + " div.picframe").each(function(z) {
				jQuery(this).bind("click", function(){
					jQuery(this).css({borderColor: settings.thumbsActiveBorderColor});
					jQuery(this).parent().parent().find("div.picframe").not(jQuery(this)).css({borderColor: settings.thumbsBorderColor});
					var cnt = -(pictWidth*z);
					//(cnt != container.find("ul").css("left").replace(/px/, "")) ? container.find("span.typo").animate({"opacity": 0}, 250) : null ;
					//container.find("ul").animate({ left: cnt}, settings.easeTime, settings.easeFunc, function(){container.find("span.xtypo").animate({"opacity": settings.typoFullOpacity}, 250)});
					container.find("ul").animate({ left: cnt}, settings.easeTime, settings.easeFunc);
					return false;
				});
			});


			// shortcuts to +/- buttons
			var jQuerybtl = jQuery("a#left" + j);
			var jQuerybtr = jQuery("a#right" + j);

			// right/left
			jQuerybtr.bind("click", function(){
					if (r_enabled) (pictEls-pos > settings.thumbs*2 || pictEls%settings.thumbs == 0)? pos += settings.thumbs : pos += pictEls % settings.thumbs;
					r_enabled = false;
					jQuery(this).prev().prev().find("ul:not(:animated)").animate({ left: -(thumbsWidth+settings.thumbsRightMargin)*pos}, 500, settings.easeFunc, function(){authorityMixing();});
					return false;
			});
			jQuerybtl.bind("click", function(){
					if (l_enabled && pos!=0) (pictEls-pos > settings.thumbs || pictEls%settings.thumbs == 0)? pos -= settings.thumbs : pos -= pictEls % settings.thumbs;
					l_enabled = false;
					jQuery(this).prev().find("ul:not(:animated)").animate({ left: -(thumbsWidth+settings.thumbsRightMargin)*pos}, 500, settings.easeFunc, function(){authorityMixing();});
					return false;
			});

			function authorityMixing()
			{

				//right btt
				(pos == pictEls-settings.thumbs) ? jQuerybtr.addClass("r_dis") : jQuerybtr.removeClass("r_dis");
				(pos == pictEls-settings.thumbs) ? r_enabled = false : r_enabled = true;
				//left btt
				(pos == 0) ? jQuerybtl.addClass("l_dis") : jQuerybtl.removeClass("l_dis");
				(pos == 0) ? l_enabled = false : l_enabled = true;
			}

			//CSS	defs @ runtime
			var tBorder = settings.thumbsBorderWidth;
			var contBorder = settings.galBorderWidth

			jQuery(".slideViewer a img").css({border: "0"});
			if(settings.typo)
					{
						jQuery(this).find("span.typo").each(function(z) {
							var my_height = jQuery(this).prev().height();
							var my_top = parseInt(jQuery(this).prev().css("margin-top"));
							jQuery(this).css({marginTop: (my_height+my_top+jQuery(this).innerHeight()), opacity: settings.typoFullOpacity});
							//jQuery(this).css({marginTop: (pictHeight-jQuery(this).innerHeight()), opacity: settings.typoFullOpacity});
						});
					}
			jQuery("div#svwp"+ j).css({border: settings.galBorderWidth +"px solid "+settings.galBorderColor});

			jQuery("div#thumbSlider" + j).css({position: "relative", left: contBorder, top: settings.thumbsTopMargin+"px", width: settings.thumbs*thumbsWidth+(((settings.thumbsRightMargin+settings.thumbsExtraSpace)*settings.thumbs)-settings.thumbsRightMargin), height: thumbsHeight, textAlign: "center", overflow: "hidden", margin: "0 auto"});
			jQuery("div#thumbSlider" + j + " ul").css({width: (thumbsWidth*pictEls)+(settings.thumbsRightMargin + settings.thumbsExtraSpace)*pictEls, position: "relative", left: "0", top: "0"});
			jQuery("div#thumbSlider" + j + " ul li").css({marginRight: settings.thumbsRightMargin});

//dep			jQuery("div#thumbSlider" + j).find("p.tmbrdr").css({width: (thumbsWidth-tBorder*2)+"px", height: (thumbsHeight-tBorder*2) +"px", top: -(thumbsHeight) +"px", border: settings.thumbsBorderWidth +"px solid "+settings.thumbsBorderColor, opacity: settings.thumbsBorderOpacity});
//dep			jQuery("div#thumbSlider" + j + " a:first p.tmbrdr").css({borderColor: settings.thumbsActiveBorderColor, opacity: settings.thumbsActiveBorderOpacity});


//			jQuery("div#thumbSlider" + j).css({position: "relative", left: contBorder, top: settings.thumbsTopMargin+"px", width: settings.thumbs*thumbsWidth+((settings.thumbsRightMargin*settings.thumbs)-settings.thumbsRightMargin), height: thumbsHeight, textAlign: "center", overflow: "hidden", margin: "0 auto"});
//			jQuery("div#thumbSlider" + j + " ul").css({width: (thumbsWidth*pictEls)+settings.thumbsRightMargin*pictEls, position: "relative", left: "0", top: "0"});
//			jQuery("div#thumbSlider" + j + " ul li").css({marginRight: settings.thumbsRightMargin});

//			jQuery("div#thumbSlider" + j).find("p.tmbrdr").css({width: (thumbsWidth-tBorder*2)+"px", height: (thumbsHeight-tBorder*2) +"px", top: -(thumbsHeight) +"px", border: settings.thumbsBorderWidth +"px solid "+settings.thumbsBorderColor, opacity: settings.thumbsBorderOpacity});
//			jQuery("div#thumbSlider" + j + " a:first p.tmbrdr").css({borderColor: settings.thumbsActiveBorderColor, opacity: settings.thumbsActiveBorderOpacity});

			jQuery("div#thumbSlider" + j + " div.picframe:first").css({borderColor: settings.thumbsActiveBorderColor});

			var rbttLeftMargin = (pictWidth/2) + (jQuery("div#thumbSlider" + j).width()/2) + settings.thumbsRightMargin + contBorder;
			var lbttLeftMargin = (pictWidth/2) - (jQuery("div#thumbSlider" + j).width()/2) - (settings.buttonsWidth + settings.thumbsRightMargin) + contBorder;
			var innerImgH = jQuery("a#right" + j + " span img").attr("height");

			jQuery("a#left" + j).css({display: "block", float: "left", textAlign: "center", width: settings.buttonsWidth + "px" , height: thumbsHeight+"px",  margin: -(thumbsHeight-settings.thumbsTopMargin) +"px 0 0 "+lbttLeftMargin+"px", textDecoration: "none", lineHeight: thumbsHeight+"px", color: settings.buttonsTextColor});
			jQuery("a#right" + j).css({display: "block", float: "left", textAlign: "center", width: settings.buttonsWidth + "px", height: thumbsHeight+"px" , margin: -(thumbsHeight) +"px 0 0 "+rbttLeftMargin+"px", textDecoration: "none", lineHeight: thumbsHeight+"px", color: settings.buttonsTextColor});
			jQuery("a#left" + j + " span img").css({margin: Math.round((thumbsHeight/2)-(innerImgH/2))+"px 0 0 0"});
			jQuery("a#right" + j + " span img").css({margin: Math.round((thumbsHeight/2)-(innerImgH/2))+"px 0 0 0"});

			authorityMixing();

			if(settings.autoslide){

					var i = 1;

					jQuery("div#thumbSlider" + j).everyTime(settings.asTimer, "asld", function() {
		  			jQuery(this).find("a").eq(i).trigger("click");
		  			if(i == 0)
		  			{
						pos = 0;
						l_enabled = false;
						jQuery("div#thumbSlider" + j).find("ul:not(:animated)").animate({ left: -(thumbsWidth+settings.thumbsRightMargin)*pos}, 500, settings.easeFunc, function(){authorityMixing();});
		  			}
		  			else l_enabled = true;

						(i%settings.thumbs == 0)? jQuery(this).next().next().trigger("click") : null;
						(i < pictEls-1)?	i++ : i=0;
					});

					//stops autoslidemode
					jQuery("a#right" + j).bind("mouseup", function(){
						jQuery(this).prev().prev().stopTime("asld");
		    	});
					jQuery("a#left" + j).bind("mouseup", function(){
						jQuery(this).prev().stopTime("asld");
					});
					jQuery("div#thumbSlider" + j + " a").bind("mouseup", function(){
						jQuery(this).parent().parent().parent().stopTime("asld");
					});
			}
			var uiDisplay = (settings.thumbsVis)? "block":"none";

			jQuery("div#thumbSlider" + j + ", a#left" + j + ", a#right" + j).wrapAll("<div style='width:"+ pictWidth +"px; display: "+uiDisplay+"' id='ui"+j+"'><\/div>");
			jQuery("div#svwp"+ j + ", div#ui" + j).wrapAll("<div style='width:"+ pictWidth +"px; text-align: center;'><\/div>");
			});
			(jQuery("div#thumbSlider" + j).width()+(settings.buttonsWidth*2) >= pictWidth)? alert("ALERT: THE THUMBNAILS SLIDER IS TOO WIDE! \nthumbsPercentReduction and/or buttonsWidth needs to be scaled down!") : null;
		j++;
  });
};
