davatron5000 / FitText.js

/*global jQuery */
/*!	
* FitText.js 1.0
*
* Copyright 2011, Dave Rupert http://daverupert.com
* Released under the WTFPL license 
* http://sam.zoy.org/wtfpl/
*
* Date: Thu May 05 14:23:00 2011 -0600
*/

(function( $ ){

	$.fn.fitText = function( kompressor, options ) {

	    var settings = {
        'minFontSize' : Number.NEGATIVE_INFINITY,
        'maxFontSize' : Number.POSITIVE_INFINITY
      };

			return this.each(function(){
				var $this = $(this);              // store the object
				var compressor = kompressor || 1; // set the compressor
        
        if ( options ) { 
          $.extend( settings, options );
        }
        
        // Resizer() resizes items based on the object width divided by the compressor * 10
				var resizer = function () {
					$this.css('font-size', Math.max(Math.min($this.width() / (compressor*10), parseFloat(settings.maxFontSize)), parseFloat(settings.minFontSize)));
				};

				// Call once to set.
				resizer();

				// Call on resize. Opera debounces their resize by default. 
      	$(window).resize(resizer);
      	
			});

	};

})( jQuery );