package skins
{
	import flash.display.GradientType;
	import flash.display.InterpolationMethod;
	import flash.display.SpreadMethod;
	import flash.geom.Matrix;
	
	import mx.skins.Border;
	import mx.utils.ColorUtil;

	public class VScrollArrow extends Border
	{
		private var thickness: Number = 15; 
		override public function get measuredWidth():Number {
            return thickness;//ScrollBar.THICKNESS;
        }
               
        override public function get measuredHeight():Number {
            return thickness;//ScrollBar.THICKNESS;
        }
        
        private var colBackground: uint;
        private var colBorder: uint;
        private var colArrow: uint;
        private var colAlt: uint;
        
        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            super.updateDisplayList(unscaledWidth, unscaledHeight);
    		graphics.clear();
    		
    		colBorder= getStyle('borderColor');
			colBackground = getStyle('fillColors')[0];
    		colArrow = getStyle('arrColor');
    		
			var isUp: Boolean = (name.indexOf('up') != -1);
			switch (name) {
                case "upArrowUpSkin":
                case "downArrowUpSkin":
                	break;
                case "upArrowOverSkin":
                case "downArrowOverSkin":
                	break;
                case "upArrowDownSkin":
                case "downArrowDownSkin":
                	colBackground = ColorUtil.adjustBrightness(getStyle('fillColors')[0], 60);
		 			break;
                default:
                    break;
            }
            graphics.lineStyle(2, colBorder, 0.7);
           	var matrix: Matrix = new Matrix();
		   	matrix.createGradientBox(unscaledWidth, unscaledHeight, 0, 0, 0);
			colAlt = ColorUtil.adjustBrightness(colBackground, 110);
			drawRoundRect(
				0, 0, unscaledWidth, unscaledHeight, 3, 
				[colAlt, colBackground], [1, 1], matrix, GradientType.LINEAR, [0, 120]);
			
			var cX: Number = unscaledWidth / 2;
		   	var cY: Number = unscaledHeight / 2;
		   	with (graphics) {
		   		if (isUp) {
		   			lineStyle(0, 0, 0);
		   			beginFill(colArrow);
			   		moveTo(cX - 3, cY + 3);
			   		lineTo(cX, cY - 3);
			   		lineTo(cX + 3, cY + 3);
			   		endFill();
		   		}
		   		else {
			   		lineStyle(0, 0, 0);
		   			beginFill(colArrow);
			   		moveTo(cX - 3, cY - 3);
			   		lineTo(cX, cY + 3);
			   		lineTo(cX + 3, cY - 3);
			   		endFill();
			   	}
		 	}
        }
        
		
	}
}