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Text File  |  2008-09-02  |  10.0 KB  |  298 lines
  1. package mx.skins
  2. {
  3.    import flash.display.DisplayObject;
  4.    import flash.display.DisplayObjectContainer;
  5.    import flash.display.Graphics;
  6.    import flash.display.Loader;
  7.    import flash.display.LoaderInfo;
  8.    import flash.display.Shape;
  9.    import flash.events.ErrorEvent;
  10.    import flash.events.Event;
  11.    import flash.events.IOErrorEvent;
  12.    import flash.geom.Rectangle;
  13.    import flash.net.URLRequest;
  14.    import flash.system.ApplicationDomain;
  15.    import flash.system.LoaderContext;
  16.    import flash.utils.getDefinitionByName;
  17.    import mx.core.Container;
  18.    import mx.core.EdgeMetrics;
  19.    import mx.core.FlexLoader;
  20.    import mx.core.FlexShape;
  21.    import mx.core.IChildList;
  22.    import mx.core.mx_internal;
  23.    import mx.resources.ResourceBundle;
  24.    import mx.styles.ISimpleStyleClient;
  25.    import mx.utils.StringUtil;
  26.    
  27.    use namespace mx_internal;
  28.    
  29.    public class RectangularBorder extends Border
  30.    {
  31.       
  32.       mx_internal static const VERSION:String = "2.0.1.0";
  33.       
  34.       private static var resourceNotLoaded:String;
  35.       
  36.       private static var packageResources:ResourceBundle = ResourceBundle.getResourceBundle("skins",ApplicationDomain.currentDomain);
  37.       
  38.       {
  39.          loadResources();
  40.       }
  41.       
  42.       private var backgroundImageWidth:Number;
  43.       
  44.       private var backgroundImageStyle:Object;
  45.       
  46.       mx_internal var loader:Loader;
  47.       
  48.       private var backgroundMask:Shape;
  49.       
  50.       private var backgroundImageHeight:Number;
  51.       
  52.       private var _backgroundImageRect:Rectangle;
  53.       
  54.       private var backgroundImage:DisplayObject;
  55.       
  56.       public function RectangularBorder()
  57.       {
  58.          super();
  59.          addEventListener(Event.REMOVED,removedHandler);
  60.       }
  61.       
  62.       private static function loadResources() : void
  63.       {
  64.          resourceNotLoaded = packageResources.getString("notLoaded");
  65.       }
  66.       
  67.       override protected function updateDisplayList(param1:Number, param2:Number) : void
  68.       {
  69.          var newStyle:Object = null;
  70.          var cls:Class = null;
  71.          var imgParent:DisplayObjectContainer = null;
  72.          var childrenList:IChildList = null;
  73.          var newStyleObj:DisplayObject = null;
  74.          var loaderContext:LoaderContext = null;
  75.          var unscaledWidth:Number = param1;
  76.          var unscaledHeight:Number = param2;
  77.          if(!parent)
  78.          {
  79.             return;
  80.          }
  81.          newStyle = getStyle("backgroundImage");
  82.          if(newStyle != backgroundImageStyle)
  83.          {
  84.             backgroundImageStyle = newStyle;
  85.             if(backgroundImage)
  86.             {
  87.                imgParent = backgroundImage.parent;
  88.                childrenList = imgParent is Container ? Container(imgParent).rawChildren : IChildList(imgParent);
  89.                childrenList.removeChild(backgroundImage);
  90.             }
  91.             backgroundImage = null;
  92.             if(Boolean(newStyle) && Boolean(newStyle as Class))
  93.             {
  94.                cls = Class(newStyle);
  95.                initBackgroundImage(new cls());
  96.             }
  97.             else if(Boolean(newStyle) && newStyle is String)
  98.             {
  99.                try
  100.                {
  101.                   cls = Class(getDefinitionByName(String(newStyle)));
  102.                }
  103.                catch(e:Error)
  104.                {
  105.                }
  106.                if(cls)
  107.                {
  108.                   newStyleObj = new cls();
  109.                   initBackgroundImage(newStyleObj);
  110.                }
  111.                else
  112.                {
  113.                   mx_internal::loader = new FlexLoader();
  114.                   mx_internal::loader.contentLoaderInfo.addEventListener(Event.COMPLETE,completeEventHandler);
  115.                   mx_internal::loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR,errorEventHandler);
  116.                   mx_internal::loader.contentLoaderInfo.addEventListener(ErrorEvent.ERROR,errorEventHandler);
  117.                   loaderContext = new LoaderContext();
  118.                   loaderContext.applicationDomain = new ApplicationDomain(ApplicationDomain.currentDomain);
  119.                   mx_internal::loader.load(new URLRequest(String(newStyle)),loaderContext);
  120.                }
  121.             }
  122.             else if(newStyle)
  123.             {
  124.                throw new Error(StringUtil.substitute(resourceNotLoaded,newStyle));
  125.             }
  126.          }
  127.          if(backgroundImage)
  128.          {
  129.             mx_internal::adjustBackgroundImage();
  130.          }
  131.       }
  132.       
  133.       private function completeEventHandler(param1:Event) : void
  134.       {
  135.          var _loc2_:DisplayObject = null;
  136.          if(!parent)
  137.          {
  138.             return;
  139.          }
  140.          _loc2_ = DisplayObject(LoaderInfo(param1.target).loader);
  141.          initBackgroundImage(_loc2_);
  142.          mx_internal::adjustBackgroundImage();
  143.          dispatchEvent(param1.clone());
  144.       }
  145.       
  146.       mx_internal function get backgroundImageRect() : Rectangle
  147.       {
  148.          return _backgroundImageRect;
  149.       }
  150.       
  151.       private function getBackgroundSize() : Number
  152.       {
  153.          var _loc1_:Number = NaN;
  154.          var _loc2_:Object = null;
  155.          var _loc3_:int = 0;
  156.          _loc1_ = NaN;
  157.          _loc2_ = getStyle("backgroundSize");
  158.          if(Boolean(_loc2_) && _loc2_ is String)
  159.          {
  160.             _loc3_ = int(_loc2_.indexOf("%"));
  161.             if(_loc3_ != -1)
  162.             {
  163.                _loc1_ = Number(_loc2_.substr(0,_loc3_));
  164.             }
  165.          }
  166.          return _loc1_;
  167.       }
  168.       
  169.       mx_internal function adjustBackgroundImage() : void
  170.       {
  171.          var _loc1_:DisplayObject = null;
  172.          var _loc2_:EdgeMetrics = null;
  173.          var _loc3_:* = false;
  174.          var _loc4_:Number = NaN;
  175.          var _loc5_:Number = NaN;
  176.          var _loc6_:Number = NaN;
  177.          var _loc7_:Number = NaN;
  178.          var _loc8_:Number = NaN;
  179.          var _loc9_:Number = NaN;
  180.          var _loc10_:Number = NaN;
  181.          var _loc11_:Number = NaN;
  182.          var _loc12_:Number = NaN;
  183.          var _loc13_:Number = NaN;
  184.          var _loc14_:Graphics = null;
  185.          _loc1_ = parent;
  186.          _loc2_ = _loc1_ is Container ? Container(_loc1_).viewMetrics : borderMetrics;
  187.          _loc3_ = getStyle("backgroundAttachment") != "fixed";
  188.          if(_backgroundImageRect)
  189.          {
  190.             _loc9_ = _backgroundImageRect.width;
  191.             _loc10_ = _backgroundImageRect.height;
  192.          }
  193.          else
  194.          {
  195.             _loc9_ = width - _loc2_.left - _loc2_.right;
  196.             _loc10_ = height - _loc2_.top - _loc2_.bottom;
  197.          }
  198.          _loc4_ = getBackgroundSize();
  199.          if(isNaN(_loc4_))
  200.          {
  201.             _loc11_ = 1;
  202.             _loc12_ = 1;
  203.          }
  204.          else
  205.          {
  206.             _loc11_ = (_loc13_ = _loc4_ * 0.01) * _loc9_ / backgroundImageWidth;
  207.             _loc12_ = _loc13_ * _loc10_ / backgroundImageHeight;
  208.          }
  209.          backgroundImage.scaleX = _loc11_;
  210.          backgroundImage.scaleY = _loc12_;
  211.          _loc5_ = Math.round(0.5 * (_loc9_ - backgroundImageWidth * _loc11_));
  212.          _loc6_ = Math.round(0.5 * (_loc10_ - backgroundImageHeight * _loc12_));
  213.          backgroundImage.x = _loc2_.left;
  214.          backgroundImage.y = _loc2_.top;
  215.          backgroundMask.x = _loc2_.left;
  216.          backgroundMask.y = _loc2_.top;
  217.          if(_loc3_ && _loc1_ is Container)
  218.          {
  219.             _loc5_ -= Container(_loc1_).horizontalScrollPosition;
  220.             _loc6_ -= Container(_loc1_).verticalScrollPosition;
  221.          }
  222.          backgroundImage.alpha = getStyle("backgroundAlpha");
  223.          backgroundImage.x += _loc5_;
  224.          backgroundImage.y += _loc6_;
  225.          _loc7_ = width - _loc2_.left - _loc2_.right;
  226.          _loc8_ = height - _loc2_.top - _loc2_.bottom;
  227.          if(backgroundMask.width != _loc7_ || backgroundMask.height != _loc8_)
  228.          {
  229.             (_loc14_ = backgroundMask.graphics).clear();
  230.             _loc14_.beginFill(16777215);
  231.             _loc14_.drawRect(0,0,_loc7_,_loc8_);
  232.             _loc14_.endFill();
  233.          }
  234.       }
  235.       
  236.       private function errorEventHandler(param1:Event) : void
  237.       {
  238.       }
  239.       
  240.       private function initBackgroundImage(param1:DisplayObject) : void
  241.       {
  242.          var _loc2_:IChildList = null;
  243.          var _loc3_:int = 0;
  244.          backgroundImage = param1;
  245.          if(param1 is Loader)
  246.          {
  247.             backgroundImageWidth = Loader(param1).contentLoaderInfo.width;
  248.             backgroundImageHeight = Loader(param1).contentLoaderInfo.height;
  249.          }
  250.          else
  251.          {
  252.             backgroundImageWidth = backgroundImage.width;
  253.             backgroundImageHeight = backgroundImage.height;
  254.             if(param1 is ISimpleStyleClient)
  255.             {
  256.                ISimpleStyleClient(param1).styleName = styleName;
  257.             }
  258.          }
  259.          _loc2_ = parent is Container ? Container(parent).rawChildren : IChildList(parent);
  260.          backgroundMask = new FlexShape();
  261.          backgroundMask.name = "backgroundMask";
  262.          backgroundMask.x = 0;
  263.          backgroundMask.y = 0;
  264.          _loc2_.addChild(backgroundMask);
  265.          _loc3_ = _loc2_.getChildIndex(this);
  266.          _loc2_.addChildAt(backgroundImage,_loc3_ + 1);
  267.          backgroundImage.mask = backgroundMask;
  268.       }
  269.       
  270.       mx_internal function set backgroundImageRect(param1:Rectangle) : void
  271.       {
  272.          _backgroundImageRect = param1;
  273.          invalidateDisplayList();
  274.       }
  275.       
  276.       mx_internal function get hasBackgroundImage() : Boolean
  277.       {
  278.          return backgroundImage != null;
  279.       }
  280.       
  281.       private function removedHandler(param1:Event) : void
  282.       {
  283.          var _loc2_:IChildList = null;
  284.          _loc2_ = parent is Container ? Container(parent).rawChildren : IChildList(parent);
  285.          if(backgroundImage)
  286.          {
  287.             _loc2_.removeChild(backgroundImage);
  288.             backgroundImage = null;
  289.          }
  290.          if(backgroundMask)
  291.          {
  292.             _loc2_.removeChild(backgroundMask);
  293.             backgroundMask = null;
  294.          }
  295.       }
  296.    }
  297. }
  298.