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) _

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#graphic-flex-image-effects-05-Flex-HorizontalLinesTest.ax

#graphic-flex-image-effects-05-Flex-HorizontalLinesTest.ax [swf] [flash] flex 


  package {
  
          import flash.display.Shader;
          import flash.filters.ShaderFilter;
          import flash.events.Event;
  
          [SWF(width=400, height=500, backgroundColor=0x000000)]
Demonstrates use of a custom shader as a bitmap filter. 

  
          public class @ax-graphic-flex-image-effects-05-Flex-HorizontalLinesTest extends graphic_flex_image_effects_05_Flex_AbstractImageLoader {
  
                  private var _shaderProxy:graphic_flex_image_effects_05_Flex_ShaderProxy;
Constructor. Passes path of image to load to super class. 

  
                  public function @ax-graphic-flex-image-effects-05-Flex-HorizontalLinesTest() {
                          super("graphic-flex-image-effects-05-assets-cadillac.jpg");
                  }
Method that is called once image loads in super class. This sets up loading of shader, or applies shader if bytes have been embedded. 

  
                  override protected function runPostImageLoad():void {
                          _shaderProxy = new graphic_flex_image_effects_05_Flex_ShaderProxy("graphic-flex-image-effects-05-assets-horizontalLines.pbj");
                          if (_shaderProxy.shader == null) {
                                  _shaderProxy.addEventListener(Event.COMPLETE, onShaderLoaded);
                          } else {
                                  applyShader();
                          }
                  }
Sets properties on shader and applies it to the loaded image. 

  
                  private function applyShader():void {
                          _shaderProxy.foregroundColor = [0.68, 0.7, 0.75, 1.0];
                          _shaderProxy.backgroundColor = [0.1, 0.25, 0.3, 1.0];
                          _shaderProxy.levelsThreshold = 0.25;
                          var shader:Shader = _shaderProxy.shader;
                          var filter:ShaderFilter = new ShaderFilter(shader);
                          _loadedBitmap.filters = [filter];
                          addChild(_loadedBitmap);
                  }
Handler for when the shader completes loading. Calls applyShader().
parameter: event Event dispatched by ShaderProxy. 

  
                  private function onShaderLoaded(event:Event):void {
                          applyShader();
                  }
  
          }
  
  }
[] 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 04/09/2009

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