supersized.3.0.core.js

/*
Supersized - Fullscreen Slideshow jQuery Plugin
Version 3.0 - Core
By Sam Dunn (www.buildinternet.com // www.onemightyroar.com)
Version: supersized.3.0.js
Website: www.buildinternet.com/project/supersized
*/

(function($){

	//Resize image on ready or resize
	$.fn.supersized = function() {
		
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
		$.currentSlide = 0;
		
		//Set current image
		$("<img/>").attr("src", options.slides[$.currentSlide].image).appendTo("#supersized");
		
		$(window).bind("load", function(){
			
			$('#loading').hide();
			$('#supersized').fadeIn('fast');
						
			$('#supersized').resizenow();
			
		});
				
		$(document).ready(function() {
			$('#supersized').resizenow(); 
		});
		
		
		$(window).bind("resize", function(){
    		$('#supersized').resizenow(); 
		});
		
		$('#supersized').hide();
	};
	
	//Adjust image size
	$.fn.resizenow = function() {
		var t = $(this);
		var options = $.extend($.fn.supersized.defaults, $.fn.supersized.options);
	  	return t.each(function() {
	  		
			//Define image ratio
			var ratio = options.startheight/options.startwidth;
			
			//Gather browser and current image size
			var imagewidth = t.width();
			var imageheight = t.height();
			var browserwidth = $(window).width();
			var browserheight = $(window).height();
			var offset;

			//Resize image to proper ratio
			if ((browserheight/browserwidth) > ratio){
			    t.height(browserheight);
			    t.width(browserheight / ratio);
			    t.children().height(browserheight);
			    t.children().width(browserheight / ratio);
			} else {
			    t.width(browserwidth);
			    t.height(browserwidth * ratio);
			    t.children().width(browserwidth);
			    t.children().height(browserwidth * ratio);
			}
			if (options.vertical_center == 1){
				t.children().css('left', (browserwidth - t.width())/2);
				t.children().css('top', (browserheight - t.height())/2);
			}
			return false;
		});
	};
		
	$.fn.supersized.defaults = { 
			startwidth: 4,  
			startheight: 3,
			vertical_center: 1
	};
	
})(jQuery);