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-listClasses-ImageCell.ax

student-ar-fl-controls-listClasses-ImageCell.ax [swf] flex


  // Copyright 2007. Adobe Systems Incorporated. All Rights Reserved.
  package fl.controls.listClasses {
  
          import fl.controls.listClasses.CellRenderer;
          import fl.controls.listClasses.ICellRenderer;
          import fl.controls.listClasses.ListData;
          import fl.controls.listClasses.TileListData;
          import fl.controls.TextInput; //Only for ASDocs
          import fl.containers.UILoader;
          import fl.core.InvalidationType;
          import fl.core.UIComponent;
          import flash.display.Graphics;
          import flash.display.Shape;        
          import flash.events.IOErrorEvent;
  
      //--------------------------------------
      //  Styles
      //--------------------------------------

The skin that is used to indicate the selected state. @default @file_selectedSkin @langversion 3.0 @playerversion Flash 9.0.28.0


  
          [Style(name="selectedSkin", type="Class")]

The padding that separates the edge of the cell from the edge of the text, in pixels. @default 3 @langversion 3.0 @playerversion Flash 9.0.28.0


  
          [Style(name="textPadding", type="Number", format="Length")]

The padding that separates the edge of the cell from the edge of the image, in pixels. @default 1 @langversion 3.0 @playerversion Flash 9.0.28.0


  
          [Style(name="imagePadding", type="Number", format="Length")]

The opacity of the overlay behind the cell label. @default 0.7


  
          [Style(name="textOverlayAlpha", type="Number", format="Length")]
  
      //--------------------------------------
      //  Class description
      //--------------------------------------

The @ax-student-ar-fl-controls-listClasses-ImageCell is the default cell renderer for the TileList component. An @ax-student-ar-fl-controls-listClasses-ImageCell class accepts <code>label</code> and <code>source</code> properties, and displays a thumbnail and single-line label. Note: When content is being loaded from a different domain or sandbox, the properties of the content may be inaccessible for security reasons. For more information about how domain security affects the load process, see the Loader class.
see: flash.display.Loader Loader @includeExample examples/@fileExample.as @langversion 3.0 @playerversion Flash 9.0.28.0


  
          public class @ax-student-ar-fl-controls-listClasses-ImageCell extends CellRenderer implements ICellRenderer {

@private (protected) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  protected var textOverlay:Shape;

@private (protected) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  protected var loader:UILoader;

@private @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  private static var defaultStyles:Object = {
                                                                                                  imagePadding:1,
                                                                                                  textOverlayAlpha:0.7
                                                                                                  };

@copy fl.core.UIComponent#getStyleDefinition() @includeExample ../../core/examples/UIComponent.getStyleDefinition.1.as -noswf
see: fl.core.UIComponent#getStyle()
see: fl.core.UIComponent#setStyle()
see: fl.managers.StyleManager @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  public static function getStyleDefinition():Object {
                          return mergeStyles(defaultStyles, CellRenderer.getStyleDefinition());
                  }

Creates a new @ax-student-ar-fl-controls-listClasses-ImageCell instance. @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  public function @ax-student-ar-fl-controls-listClasses-ImageCell() {
                          super();
                          
                          loader = new UILoader();
                          
                          loader.addEventListener(IOErrorEvent.IO_ERROR, handleErrorEvent, false, 0, true);
                          
                          loader.autoLoad = true;
                          loader.scaleContent = true;
                          addChild(loader);
                  }

Gets or sets the list properties that are applied to the cell, for example, the <code>index</code> and <code>selected</code> values. These list properties are automatically updated after the cell is invalidated. Although the listData property returns an instance of ListData, in the TileList cells receive an instance of <code>TileListData</code> instead, which contains a <code>source</code> property. @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  override public function get listData():ListData {
                          return _listData;
                  }

@private (setter) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  override public function set listData(value:ListData):void {
                          _listData = value;
                          label = _listData.label;
                          var newSource:Object = (_listData as TileListData).source;
                          if (source != newSource) { // Prevent always reloading...
                                  source = newSource;
                          }
                  }

Gets or sets an absolute or relative URL that identifies the location of the SWF or image file to load, the class name of a movie clip in the library, or a reference to a display object. Valid image file formats include GIF, PNG, and JPEG. @default null @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  public function get source():Object { 
                          return loader.source;
                  }

@private (setter) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  public function set source(value:Object):void {
                          loader.source = value;
                  }

@private (protected) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  override protected function configUI():void {
                          super.configUI();
                          
                          textOverlay = new Shape();
                          var g:Graphics = textOverlay.graphics;
                          g.beginFill(0xFFFFFF);
                          g.drawRect(0,0,100,100);
                          g.endFill();
                  }

@private (protected) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  override protected function draw():void {
                          super.draw();
                  }

@private (protected) @langversion 3.0 @playerversion Flash 9.0.28.0


  
                  override protected function drawLayout():void {
                          var imagePadding:Number = getStyleValue("imagePadding") as Number;
                          loader.move(imagePadding, imagePadding);
                          
                          var w:Number = width-(imagePadding*2);
                          var h:Number = height-imagePadding*2;
                          if (loader.width != w && loader.height != h) {
                                  loader.setSize(w,h);
                          }
                          loader.drawNow(); // Force validation!
                          
                          // Position textfield
                          if (_label == "" || _label == null) {
                                  if (contains(textField)) { removeChild(textField); }
                                  if (contains(textOverlay)) { removeChild(textOverlay); }
                          } else {
                                  var textPadding:Number = getStyleValue("textPadding") as Number;
                                  textField.width = Math.min(width-textPadding*2, textField.textWidth+5);
                                  textField.height = textField.textHeight + 5;
                                  textField.x = Math.max(textPadding, width/2-textField.width/2);
                                  textField.y = height - textField.height - textPadding; // Multiline is not supported.
                                  
                                  textOverlay.x = imagePadding;
                                  textOverlay.height = textField.height + textPadding*2;
                                  textOverlay.y = height - textOverlay.height - imagePadding;
                                  textOverlay.width = width - imagePadding*2;
                                  textOverlay.alpha = getStyleValue("textOverlayAlpha") as Number;
                                  
                                  addChild(textOverlay);
                                  addChild(textField);
                          }
                          
                          background.width = width;
                          background.height = height;
                  }

@private (protected)


  
                  protected function handleErrorEvent(event:IOErrorEvent):void {
                          dispatchEvent(event);
                  }
                  
          }
  }

[] 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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