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Text File  |  2009-12-16  |  9KB  |  268 lines
  1. package mx.skins
  2. {
  3.    import flash.display.DisplayObject;
  4.    import flash.display.Graphics;
  5.    import flash.display.Loader;
  6.    import flash.display.LoaderInfo;
  7.    import flash.display.Shape;
  8.    import flash.events.ErrorEvent;
  9.    import flash.events.Event;
  10.    import flash.events.IOErrorEvent;
  11.    import flash.geom.Rectangle;
  12.    import flash.net.URLRequest;
  13.    import flash.system.ApplicationDomain;
  14.    import flash.system.LoaderContext;
  15.    import flash.utils.getDefinitionByName;
  16.    import mx.core.EdgeMetrics;
  17.    import mx.core.FlexLoader;
  18.    import mx.core.FlexShape;
  19.    import mx.core.IChildList;
  20.    import mx.core.IContainer;
  21.    import mx.core.IRawChildrenContainer;
  22.    import mx.core.IRectangularBorder;
  23.    import mx.core.mx_internal;
  24.    import mx.resources.IResourceManager;
  25.    import mx.resources.ResourceManager;
  26.    import mx.styles.ISimpleStyleClient;
  27.    
  28.    use namespace mx_internal;
  29.    
  30.    public class RectangularBorder extends Border implements IRectangularBorder
  31.    {
  32.       
  33.       mx_internal static const VERSION:String = "3.5.0.12683";
  34.        
  35.       
  36.       private var backgroundImage:DisplayObject;
  37.       
  38.       private var backgroundImageHeight:Number;
  39.       
  40.       private var _backgroundImageBounds:Rectangle;
  41.       
  42.       private var backgroundImageStyle:Object;
  43.       
  44.       private var backgroundImageWidth:Number;
  45.       
  46.       private var resourceManager:IResourceManager;
  47.       
  48.       public function RectangularBorder()
  49.       {
  50.          resourceManager = ResourceManager.getInstance();
  51.          super();
  52.          addEventListener(Event.REMOVED,removedHandler);
  53.       }
  54.       
  55.       public function layoutBackgroundImage() : void
  56.       {
  57.          var _loc4_:Number = NaN;
  58.          var _loc5_:Number = NaN;
  59.          var _loc7_:Number = NaN;
  60.          var _loc8_:Number = NaN;
  61.          var _loc14_:Number = NaN;
  62.          var _loc15_:Graphics = null;
  63.          var _loc1_:DisplayObject = parent;
  64.          var _loc2_:EdgeMetrics = _loc1_ is IContainer ? IContainer(_loc1_).viewMetrics : borderMetrics;
  65.          var _loc3_:* = getStyle("backgroundAttachment") != "fixed";
  66.          if(_backgroundImageBounds)
  67.          {
  68.             _loc4_ = _backgroundImageBounds.width;
  69.             _loc5_ = _backgroundImageBounds.height;
  70.          }
  71.          else
  72.          {
  73.             _loc4_ = width - _loc2_.left - _loc2_.right;
  74.             _loc5_ = height - _loc2_.top - _loc2_.bottom;
  75.          }
  76.          var _loc6_:Number = getBackgroundSize();
  77.          if(isNaN(_loc6_))
  78.          {
  79.             _loc7_ = 1;
  80.             _loc8_ = 1;
  81.          }
  82.          else
  83.          {
  84.             _loc7_ = (_loc14_ = _loc6_ * 0.01) * _loc4_ / backgroundImageWidth;
  85.             _loc8_ = _loc14_ * _loc5_ / backgroundImageHeight;
  86.          }
  87.          backgroundImage.scaleX = _loc7_;
  88.          backgroundImage.scaleY = _loc8_;
  89.          var _loc9_:Number = Math.round(0.5 * (_loc4_ - backgroundImageWidth * _loc7_));
  90.          var _loc10_:Number = Math.round(0.5 * (_loc5_ - backgroundImageHeight * _loc8_));
  91.          backgroundImage.x = _loc2_.left;
  92.          backgroundImage.y = _loc2_.top;
  93.          var _loc11_:Shape;
  94.          (_loc11_ = Shape(backgroundImage.mask)).x = _loc2_.left;
  95.          _loc11_.y = _loc2_.top;
  96.          if(_loc3_ && _loc1_ is IContainer)
  97.          {
  98.             _loc9_ -= IContainer(_loc1_).horizontalScrollPosition;
  99.             _loc10_ -= IContainer(_loc1_).verticalScrollPosition;
  100.          }
  101.          backgroundImage.alpha = getStyle("backgroundAlpha");
  102.          backgroundImage.x += _loc9_;
  103.          backgroundImage.y += _loc10_;
  104.          var _loc12_:Number = width - _loc2_.left - _loc2_.right;
  105.          var _loc13_:Number = height - _loc2_.top - _loc2_.bottom;
  106.          if(_loc11_.width != _loc12_ || _loc11_.height != _loc13_)
  107.          {
  108.             (_loc15_ = _loc11_.graphics).clear();
  109.             _loc15_.beginFill(16777215);
  110.             _loc15_.drawRect(0,0,_loc12_,_loc13_);
  111.             _loc15_.endFill();
  112.          }
  113.       }
  114.       
  115.       public function set backgroundImageBounds(param1:Rectangle) : void
  116.       {
  117.          if(_backgroundImageBounds && param1 && _backgroundImageBounds.equals(param1))
  118.          {
  119.             return;
  120.          }
  121.          _backgroundImageBounds = param1;
  122.          invalidateDisplayList();
  123.       }
  124.       
  125.       private function getBackgroundSize() : Number
  126.       {
  127.          var _loc3_:int = 0;
  128.          var _loc1_:Number = NaN;
  129.          var _loc2_:Object = getStyle("backgroundSize");
  130.          if(_loc2_ && _loc2_ is String)
  131.          {
  132.             _loc3_ = _loc2_.indexOf("%");
  133.             if(_loc3_ != -1)
  134.             {
  135.                _loc1_ = Number(_loc2_.substr(0,_loc3_));
  136.             }
  137.          }
  138.          return _loc1_;
  139.       }
  140.       
  141.       private function removedHandler(param1:Event) : void
  142.       {
  143.          var _loc2_:IChildList = null;
  144.          if(backgroundImage)
  145.          {
  146.             _loc2_ = parent is IRawChildrenContainer ? IRawChildrenContainer(parent).rawChildren : IChildList(parent);
  147.             _loc2_.removeChild(backgroundImage.mask);
  148.             _loc2_.removeChild(backgroundImage);
  149.             backgroundImage = null;
  150.          }
  151.       }
  152.       
  153.       private function initBackgroundImage(param1:DisplayObject) : void
  154.       {
  155.          backgroundImage = param1;
  156.          if(param1 is Loader)
  157.          {
  158.             backgroundImageWidth = Loader(param1).contentLoaderInfo.width;
  159.             backgroundImageHeight = Loader(param1).contentLoaderInfo.height;
  160.          }
  161.          else
  162.          {
  163.             backgroundImageWidth = backgroundImage.width;
  164.             backgroundImageHeight = backgroundImage.height;
  165.             if(param1 is ISimpleStyleClient)
  166.             {
  167.                ISimpleStyleClient(param1).styleName = styleName;
  168.             }
  169.          }
  170.          var _loc2_:IChildList = parent is IRawChildrenContainer ? IRawChildrenContainer(parent).rawChildren : IChildList(parent);
  171.          var _loc3_:Shape = new FlexShape();
  172.          _loc3_.name = "backgroundMask";
  173.          _loc3_.x = 0;
  174.          _loc3_.y = 0;
  175.          _loc2_.addChild(_loc3_);
  176.          var _loc4_:int = _loc2_.getChildIndex(this);
  177.          _loc2_.addChildAt(backgroundImage,_loc4_ + 1);
  178.          backgroundImage.mask = _loc3_;
  179.       }
  180.       
  181.       public function get backgroundImageBounds() : Rectangle
  182.       {
  183.          return _backgroundImageBounds;
  184.       }
  185.       
  186.       public function get hasBackgroundImage() : Boolean
  187.       {
  188.          return backgroundImage != null;
  189.       }
  190.       
  191.       private function completeEventHandler(param1:Event) : void
  192.       {
  193.          if(!parent)
  194.          {
  195.             return;
  196.          }
  197.          var _loc2_:DisplayObject = DisplayObject(LoaderInfo(param1.target).loader);
  198.          initBackgroundImage(_loc2_);
  199.          layoutBackgroundImage();
  200.          dispatchEvent(param1.clone());
  201.       }
  202.       
  203.       override protected function updateDisplayList(param1:Number, param2:Number) : void
  204.       {
  205.          var cls:Class = null;
  206.          var newStyleObj:DisplayObject = null;
  207.          var loader:Loader = null;
  208.          var loaderContext:LoaderContext = null;
  209.          var message:String = null;
  210.          var unscaledWidth:Number = param1;
  211.          var unscaledHeight:Number = param2;
  212.          if(!parent)
  213.          {
  214.             return;
  215.          }
  216.          var newStyle:Object = getStyle("backgroundImage");
  217.          if(newStyle != backgroundImageStyle)
  218.          {
  219.             removedHandler(null);
  220.             backgroundImageStyle = newStyle;
  221.             if(newStyle && newStyle as Class)
  222.             {
  223.                cls = Class(newStyle);
  224.                initBackgroundImage(new cls());
  225.             }
  226.             else if(newStyle && newStyle is String)
  227.             {
  228.                try
  229.                {
  230.                   cls = Class(getDefinitionByName(String(newStyle)));
  231.                }
  232.                catch(e:Error)
  233.                {
  234.                }
  235.                if(cls)
  236.                {
  237.                   newStyleObj = new cls();
  238.                   initBackgroundImage(newStyleObj);
  239.                }
  240.                else
  241.                {
  242.                   loader = new FlexLoader();
  243.                   loader.contentLoaderInfo.addEventListener(Event.COMPLETE,completeEventHandler);
  244.                   loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,errorEventHandler);
  245.                   loader.contentLoaderInfo.addEventListener(ErrorEvent.ERROR,errorEventHandler);
  246.                   loaderContext = new LoaderContext();
  247.                   loaderContext.applicationDomain = new ApplicationDomain(ApplicationDomain.currentDomain);
  248.                   loader.load(new URLRequest(String(newStyle)),loaderContext);
  249.                }
  250.             }
  251.             else if(newStyle)
  252.             {
  253.                message = resourceManager.getString("skins","notLoaded",[newStyle]);
  254.                throw new Error(message);
  255.             }
  256.          }
  257.          if(backgroundImage)
  258.          {
  259.             layoutBackgroundImage();
  260.          }
  261.       }
  262.       
  263.       private function errorEventHandler(param1:Event) : void
  264.       {
  265.       }
  266.    }
  267. }
  268.