https://www.zandscape.com/wp-content/themes/muse/javascripts/jquery.center.js?ver=1.0.0

1/*
2====================================================================================================
3@name			jQuery imgCenter
4@description	This Plug-In will center images inside of it's parent element
5@uri			http://code.drewwilson.com/entry/imgcenter-jquery-plugin
6@version		1.0
7@author			Drew Wilson
8@author-uri		www.drewwilson.com
9@copyright		2009 Drew Wilson
10====================================================================================================
11*/
12
13(function($){
14	$.fn.imgCenter = function(options) {
15
16		var defaults = {  
17		  	parentSteps: 0,
18		  	scaleToFit: true,
19		  	centerVertical: true,
20		  	complete: function(){},
21		  	start: function(){},
22		  	end: function(){}
23	  	};  
24	 	var opts = $.extend(defaults, options);
25	 	
26		opts.start.call(this);
27		
28		// Get total number of items.
29		var len = this.length - 1;
30		
31		return this.each(function(i){
32			var current = i;
33			
34			// Declare the current Image as a variable.
35			var org_image = $(this);
36			
37			org_image.hide();
38			
39			// Move up Parents until the spcified limit has been met.
40			var theParent = org_image;
41			for (var i=0; i <= opts.parentSteps; i++){
42				theParent = theParent.parent();
43			}			
44			var parWidth = parseInt(theParent.width());
45			var parHeight = parseInt(theParent.height());
46			var parAspect = parWidth / parHeight;
47
48			if(org_image[0].complete){
49				imgMath(org_image);
50			} else {
51				var loadWatch = setInterval(watch, 500);
52			}
53			
54			function watch(){
55				if(org_image[0].complete){
56					clearInterval(loadWatch);
57					imgMath(org_image);
58				}
59			}
60
61			function imgMath(org_image) {
62				// Get image properties.		
63				var imgWidth = parseInt(org_image.width());
64				var imgHeight = parseInt(org_image.height());
65				var imgAspect = imgWidth / imgHeight;
66	
67				// Center the image.
68				if(parWidth != imgWidth || parHeight != imgHeight){
69					theParent.css("overflow","hidden");
70					
71					if(opts.scaleToFit){
72						if(parAspect >= 1){
73							org_image.css({"width": parWidth +"px"});
74							imgWidth = parWidth;
75							imgHeight = Math.round(imgWidth / imgAspect);
76							
77							if((parWidth / imgAspect) < parHeight){
78								org_image.css({"height": parHeight +"px","width":"auto"});
79								imgHeight = parHeight;
80								imgWidth = Math.round(imgHeight * imgAspect);
81							}				
82						} else {
83							org_image.css({"height": parHeight +"px"});
84							imgHeight = parHeight;
85							imgWidth = Math.round(imgHeight * imgAspect);
86							if((parHeight * imgAspect) < parWidth){
87								org_image.css({"width": parWidth +"px","height":"auto"});
88								imgWidth = parWidth;
89								imgHeight = Math.round(imgWidth / imgAspect);
90							}
91						}
92						if(imgWidth > parWidth){
93							org_image.css({"margin-left":"-"+ Math.round((imgWidth - parWidth) / 2) +"px"});
94						}
95						if(imgHeight > parHeight && opts.centerVertical){
96							org_image.css({"margin-top":"-"+ Math.round((imgHeight - parHeight) / 2) +"px"});
97						}		
98					} else {
99						if(imgWidth > parWidth){
100							org_image.css({"margin-left":"-"+ Math.round((imgWidth - parWidth) / 2) +"px"});
101						} else if(imgWidth < parWidth){
102							org_image.css({"margin-left": Math.round((parWidth -imgWidth) / 2) +"px"});
103						}
104						if(imgHeight > parHeight && opts.centerVertical){
105							org_image.css({"margin-top":"-"+ Math.round((imgHeight - parHeight) / 2) +"px"});
106						} else if(imgHeight < parHeight && opts.centerVertical){
107							org_image.css({"margin-top": Math.round((parHeight - imgHeight) / 2) +"px"});
108						}
109					}
110					opts.complete.call(this);
111					if(current == len){
112						opts.end.call(this);
113					}
114				}
115				org_image.show();	
116			}
117			
118		});		
119	}
120})(jQuery);