flash on 2010-4-13

/**
 * Copyright kihon ( http://wonderfl.net/user/kihon )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/Awe8
 */

package
{
	import flash.display.Sprite;
	import flash.events.Event;
 
	public class Main extends Sprite
	{
		public function Main()
		{
			graphics.beginFill(0x1C1C1C);
			graphics.drawRect(0, 0, 465, 465);
			graphics.endFill();
 
			var slider:Slider = new Slider(1.0, 8.0);
			slider.x = slider.y = 100;
			slider.addEventListener(Event.CHANGE, function():void { trace(slider.value); } );
			addChild(slider);
		}
	}
}
 
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import com.bit101.components.Label;
 
class Slider extends Sprite
{
	public var value:Number = 0.0;
	private var bar:Sprite;
	private var max:Number = 1.0;
	private var min:Number = 0.0;
	private var label:Label;
 
	public function Slider(min:Number = 0.0, max:Number = 1.0)
	{
		this.min = min;
		this.max = max;
 
		label = new Label(this, 120, -10, value.toFixed(1));
		label.scaleX = label.scaleY = 1.3;
 
		var line:Sprite = new Sprite();
		line.graphics.lineStyle(2.0, 0x656565);
		line.graphics.beginFill(0x3B3B3A);
		line.graphics.drawRoundRect(-2, 0, 100, 5, 5, 5);
		line.graphics.endFill();
		addChild(line);
 
		var matrix:Matrix = new Matrix();
		matrix.createGradientBox(12, 15, 90 * Math.PI / 180, -6, -5);
 
		bar = new Sprite();
		bar.graphics.lineStyle(1.0, 0xE0E0E0);
		bar.graphics.beginGradientFill("linear", [0x999999, 0x444444], [1.0, 1.0], [0, 255], matrix);
		bar.graphics.moveTo( -6, -4);
		bar.graphics.lineTo( 6, -4);
		bar.graphics.lineTo( 6, 4);
		bar.graphics.lineTo( 0, 11);
		bar.graphics.lineTo(-6, 4);
		bar.graphics.endFill();
		addChild(bar);
 
		bar.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
	}
 
	private function onMouseDown(event:MouseEvent):void
	{
		bar.startDrag(false, new Rectangle(0, 0, 100, 0));
		var stop:Function = function():void { bar.stopDrag(); removeEventListener(Event.ENTER_FRAME, onEnterFrame); };
		stage.addEventListener(Event.MOUSE_LEAVE, stop);
		stage.addEventListener(MouseEvent.MOUSE_UP, stop);
 
		addEventListener(Event.ENTER_FRAME, onEnterFrame);
	}
 
	private function onEnterFrame(event:Event):void
	{
		this.value = this.min + bar.x / this.x * (this.max - this.min);
		this.dispatchEvent(new Event(Event.CHANGE));
 
		this.label.text = this.value.toFixed(1);
	}
}