package com.guru.display 
{
	
	/**
	 * ...
	 * @author Eddy Lee
	 */
	public class DisplayAlign 
	{
		public static const TOP_LEFT:uint = 0;
		public static const TOP:uint = 1;
		public static const TOP_RIGHT:uint = 2;
		public static const LEFT:uint = 3;
		public static const CENTER:uint = 4;
		public static const RIGHT:uint = 5;
		public static const BOTTOM_LEFT:uint = 6;
		public static const BOTTOM:uint = 7;
		public static const BOTTOM_RIGHT:uint = 8;
		
		public static function isLeftAlign(pAlign:uint):Boolean
		{
			return (pAlign == TOP_LEFT || pAlign == LEFT || pAlign == BOTTOM_LEFT);
		}
		
		public static function isRightAlign(pAlign:uint):Boolean
		{
			return (pAlign == TOP_RIGHT || pAlign == RIGHT || pAlign == BOTTOM_RIGHT);
		}
		
		public static function isTopAlign(pAlign:uint):Boolean
		{
			return (pAlign == TOP_LEFT || pAlign == TOP || pAlign == TOP_RIGHT);
		}
		
		public static function isBottomAlign(pAlign:uint):Boolean
		{
			return (pAlign == BOTTOM_LEFT || pAlign == BOTTOM || pAlign == BOTTOM_RIGHT);
		}
		
		public static function isHoriAlign(pAlign:uint):Boolean
		{
			return (pAlign != TOP && pAlign != BOTTOM);
		}
		
		public static function isVertAlign(pAlign:uint):Boolean
		{
			return (pAlign != LEFT && pAlign != RIGHT);
		}
		
		public function DisplayAlign(...args) 
		{
			throw new ArgumentError("DisplayAlign class cannot be instantiated.");
		}
		
	}
	
}