topical media & game development
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#ax-springgraph-sample-MoleculeViewer-Circle.ax

#ax-springgraph-sample-MoleculeViewer-Circle.ax [swf] flex 


  
//////////////////////////////////////////////////////////////////////////


  //
  //  Copyright (C) 2006 Adobe Macromedia Software LLC and its licensors.
  //  All Rights Reserved. The following is Source Code and is subject to all
  //  restrictions on such code as contained in the End User License Agreement
  //  accompanying this product.
  //
  
//////////////////////////////////////////////////////////////////////////


  
  package
  {
          import mx.core.UIComponent;
          import flash.display.GradientType;
          import flash.display.SpreadMethod;
          import flash.display.InterpolationMethod;
          import flash.geom.Matrix;
          import mx.effects.Rotate;
A UIComponent that is simply a colored circle.
author: Mark Shepherd 

  
          public class @ax-ax-springgraph-sample-MoleculeViewer-Circle extends UIComponent
          {
the color that this circle will be

  
                  public function set color(i: int): void {
                          _color = i;
                          
                          // don't redraw immediately, because maybe the code that's calling us is
                          // going to change several settings, and we don't want to redraw for each 
                          // setting change. Instead, tell the flex framework that
                          // we need to be redrawn; the framework will ensure that updateDisplayList
                          // is invoked after all scripts have finished executing.
                          invalidateDisplayList(); 
                  }
our current color setting.

  
                  private var _color: int;
redraws the component, using our current color, height, and width settings. This function is called whenever the flex framework decides it's time to redraw the component.

  
                  override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
                          // We could simply do graphics.beginFill(_color) here, to get a solid color fill.
                          // But instead, we'll use a gradient fill to get a simulated 3D effect.
                          // TODO: tweak the gradient fill settings to get a better looking gradient
                          graphics.clear();
                          graphics.beginGradientFill(GradientType.RADIAL, [0xffffff, _color], [1, 1], [0, 127], 
                                  null, SpreadMethod.PAD, InterpolationMethod.RGB, 0.75);
                          graphics.drawCircle(unscaledWidth / 2, unscaledHeight / 2, unscaledHeight / 2);
                          graphics.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) _

(C) Æliens 27/08/2009

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