Free ActionScript

package 
{
	import flash.display.MovieClip;
	import flash.display.Sprite;
	import flash.events.MouseEvent;
	import flash.geom.Rectangle;
	import flash.text.TextField;
 
	/**
	 * Custom Number Range Slider
	 * 
	 * @author 		Philip Radvan
	 * @url 		http://www.freeactionscript.com
	 * @version 	1.0
	 * 
	 */
	public class  NumberRangeSlider extends Sprite
	{
		var scrubberLeftTrack:Rectangle;
		var scrubberRightTrack:Rectangle;
 
		private var minValue:Number = 0;
		private var lowValue:Number = 10;
		private var highValue:Number = 30;
		private var maxValue:Number = 300;
 
		function NumberRangeSlider()
		{
			init();			
		}
 
		/**
		 * init method
		 */
		private function init():void
		{
			//some error handling
			if (lowValue >= highValue)
			{
				trace("Fatal Error! lowValue must be less than highValue.");
				return;
			}
			if (highValue > maxValue)
			{
				trace("Warning! highValue is more than maxValue.");
				highValue = maxValue;
			}
			if (highValue > maxValue)
			{
				trace("Warning! lowValue is less than minValue.");
				lowValue = minValue;
			}
 
			//update display
			updateDisplay();
 
			//position scrubbers
			numberRangeSliderMc.scrubberLeft.x = lowValue;
			numberRangeSliderMc.scrubberRight.x = highValue;
 
			//setup dragging track rectangle (dragging range)
			scrubberLeftTrack = new Rectangle(	lowValue, 
												0, 
												numberRangeSliderMc.scrubberRight.x-highValue, 
												0);
 
			scrubberRightTrack = new Rectangle(	highValue, 
												0, 
												numberRangeSliderMc.sliderTrack.width-highValue, 
												0);
 
			//Scrubber button Listeners
			numberRangeSliderMc.scrubberLeft.addEventListener(MouseEvent.MOUSE_DOWN, onScrubberLeftDown);	
			numberRangeSliderMc.scrubberLeft.addEventListener(MouseEvent.MOUSE_UP, onScrubberUp);
 
			numberRangeSliderMc.scrubberRight.addEventListener(MouseEvent.MOUSE_DOWN, onScrubberRightDown);
			numberRangeSliderMc.scrubberRight.addEventListener(MouseEvent.MOUSE_UP, onScrubberUp);
 
			stage.addEventListener(MouseEvent.MOUSE_UP, onScrubberUp);
			stage.addEventListener(MouseEvent.MOUSE_MOVE, onScrubberMove);
		}
 
		/**
		 * Scrubber button Handlers
		 */
		private function onScrubberMove(evt:MouseEvent):void
		{
			//update current high value
			var highPercent:Number = numberRangeSliderMc.scrubberRight.x / numberRangeSliderMc.sliderTrack.width * 100;
			highValue = Math.floor(maxValue * highPercent / 100);
			numberRangeSliderMc.high_txt.text = highValue;
 
			//update current low value
			var lowPercent:Number = numberRangeSliderMc.scrubberLeft.x / numberRangeSliderMc.sliderTrack.width * 100;	
			lowValue = Math.floor(maxValue * lowPercent / 100);
			numberRangeSliderMc.low_txt.text = lowValue;
 
		}
		private function onScrubberLeftDown(evt:MouseEvent):void
		{
			var object = evt.target;
			object.startDrag(false, scrubberLeftTrack);
		}
		private function onScrubberRightDown(evt:MouseEvent):void
		{
			var object = evt.target;
			object.startDrag(false, scrubberRightTrack);
		}
		private function onScrubberUp(evt:MouseEvent):void
		{
			updateDragRange();
 
			numberRangeSliderMc.scrubberRight.stopDrag();
			numberRangeSliderMc.scrubberLeft.stopDrag();
		}
 
		/**
		 * This updates the dragging range rectangles
		 */
		private function updateDragRange():void
		{
			//LEFT
			scrubberLeftTrack.x = numberRangeSliderMc.sliderTrack.x;
			scrubberLeftTrack.y = numberRangeSliderMc.sliderTrack.y;
			scrubberLeftTrack.width = numberRangeSliderMc.scrubberRight.x - 1;
			scrubberLeftTrack.height = 0;
 
			//RIGHT
			scrubberRightTrack.x = numberRangeSliderMc.scrubberLeft.x + 1;
			scrubberRightTrack.y = numberRangeSliderMc.sliderTrack.y;
			scrubberRightTrack.width = numberRangeSliderMc.sliderTrack.width - numberRangeSliderMc.scrubberLeft.x - 1;
			scrubberRightTrack.height = 0;
		}
 
		/**
		 * This updates the text boxes in the number range slider
		 */
		private function updateDisplay():void
		{
			//set display
			numberRangeSliderMc.min_txt.text = minValue;
			numberRangeSliderMc.max_txt.text = maxValue;
			numberRangeSliderMc.low_txt.text = lowValue;
			numberRangeSliderMc.high_txt.text = highValue;
		}
	}	
}
//the end