topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

student-ar-fl-controls-progressBarClasses-IndeterminateBar.ax

student-ar-fl-controls-progressBarClasses-IndeterminateBar.ax [swf] flex


  // Copyright 2007. Adobe Systems Incorporated. All Rights Reserved.
  package fl.controls.progressBarClasses {
          
          import fl.controls.ProgressBar;
          import fl.core.UIComponent;
          import fl.core.InvalidationType;
          import flash.display.BitmapData;
          import flash.display.DisplayObject;
          import flash.display.Graphics;
          import flash.display.Sprite;
          import flash.events.Event;
          
          
      //--------------------------------------
      //  Styles
      //--------------------------------------


  
      [Style(name="indeterminateSkin", type="Class")]
  
      //--------------------------------------
      //  Class description
      //--------------------------------------


  
          public class @ax-student-ar-fl-controls-progressBarClasses-IndeterminateBar extends UIComponent {


  
                  protected var animationCount:uint = 0;


  
                  protected var bar:Sprite;


  
                  protected var barMask:Sprite;


  
                  protected var patternBmp:BitmapData


  
                  private static var defaultStyles:Object = {indeterminateSkin:"ProgressBar_indeterminateSkin"};


  
                  public static function getStyleDefinition():Object { return defaultStyles; }


  
                  public function @ax-student-ar-fl-controls-progressBarClasses-IndeterminateBar() {
                          super();
                          setSize(0,0);
                          startAnimation();
                  }


  
                  override public function get visible():Boolean {
                          return super.visible;
          }


  
                  override public function set visible(value:Boolean):void {
                          if (value) {
                                  startAnimation();
                          } else {
                                  stopAnimation();
                          }
                          super.visible = value;
                  }


  
                  protected function startAnimation():void {
                          addEventListener(Event.ENTER_FRAME,handleEnterFrame,false,0,true);
                  }


  
                  protected function stopAnimation():void {
                          removeEventListener(Event.ENTER_FRAME,handleEnterFrame);
                  }


  
                  protected function handleEnterFrame(event:Event):void {
                          if (patternBmp == null) { return; }
                          animationCount = (animationCount+2)\%patternBmp.width;
                          bar.x = -animationCount;
                  }


  
                  override protected function configUI():void {
                          bar = new Sprite();
                          addChild(bar);
                          barMask = new Sprite();
                          addChild(barMask);
                          bar.mask = barMask;
                  }


  
                  override protected function draw():void {
                          if (isInvalid(InvalidationType.STYLES)) {
                                  drawPattern();
                                  invalidate(InvalidationType.SIZE,false);
                          }
                          if (isInvalid(InvalidationType.SIZE)) {
                                  drawBar();
                                  drawMask();
                          }
                          super.draw();
                  }


  
                  protected function drawPattern():void {
                          var skin:DisplayObject = getDisplayObjectInstance(getStyleValue("indeterminateSkin"));
                          if (patternBmp) {
                                  patternBmp.dispose();
                          }
                          patternBmp = new BitmapData(skin.width<<0,skin.height<<0,true,0);
                          patternBmp.draw(skin);
                  }


  
                  protected function drawMask():void {
                          var g:Graphics = barMask.graphics;
                          g.clear();
                          g.beginFill(0,0);
                          g.drawRect(0,0,_width,_height);
                          g.endFill();
                  }


  
                  protected function drawBar():void {
                          if (patternBmp == null) { return; }
                          var g:Graphics = bar.graphics;
                          g.clear();
                          g.beginBitmapFill(patternBmp);
                          g.drawRect(0,0,_width+patternBmp.width,_height);
                          g.endFill();
                  }
          }
  }

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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