visualplayground

/**
 * The <code>findPreferredRatio</code> method is used to find the correct ratio to fit content in a container using a maximum area.
 *  
 * @param $width		Number
 * @param $height		Number
 * @param $maxWidth		Number
 * @param $maxHeight	Number
 * @return 
 * 
 */
public static function findPreferredRatio($width:Number, $height:Number, $maxWidth:Number, $maxHeight:Number):Number
{
	var dw:Number = $maxWidth/$width;
	var dh:Number = $maxHeight/$height;
	return dw < dh ? dw : dh;
}

var pic:Bitmap = new Bitmap(new BitmapData(1000, 1000, false, 0));
var ratio:Number = MathUtils.findPreferredRatio(pic.width, pic.height, 280, 180);
pic.width *= ratio;
pic.height *= ratio;
trace(pic.width+'x'+pic.height); //output: 180x180