下面简单介绍一下重新设计过的编辑器结构，从功能和层次上分主要是这样的：

App, MainWindow： 入口和主界面 Controls：使用的各种控件和自定义界面 Data：数据层，填充控件的数据信息，这里主要是魔兽世界的物品和npc等信息 Services：服务层，编辑器用到的功能由每个模块作为服务提供，比如场景服务维护编辑器中的场景结点等 Commands：命令，响应编辑器的各种命令，独立于界面 Resources：资源，包括主题，图像资源和程序中统一的界面元素，如上面程序的各种颜色边框

Application定义了程序的资源，主题，也是程序的入口，通常在启动主窗口之前，也是设置和获取使用的配置信息的地方，启动代码如下：

 protected override void OnStartup(StartupEventArgs e)         {             base.OnStartup(e);

            window = new MainWindow();

            // Restore the window size when the values are valid.             if (Settings.Default.Left >= 0 && Settings.Default.Top >= 0 && Settings.Default.Width > 0 && Settings.Default.Height > 0                 && Settings.Default.Left + Settings.Default.Width        

WPF的界面部分非常简单，在设计阶段可以直接写几个简单的元素占位。

下面是比较复杂的初始化部分，流程大致是这样的：

1. 初始化引擎，把引擎窗口放到主界面中间，借助HwndHost。并设置resize和mouse消息处理。

2. 读取需要的数据表。

3. 读取命令绑定，初始化界面控件大小，激活窗口，启动timer准备渲染。

这三个步骤可以用一个Splash窗口来提示进度，总的代码如下：

private readonly DispatcherTimer timer;         private readonly WindowHost windowhost;         private bool isKeyFocus;

        public MainWindow()         {             InitializeComponent();

            Loaded += new RoutedEventHandler(MainWindow_Loaded);             Closing += new CancelEventHandler(MainWindow_Closing);             StateChanged += new EventHandler(MainWindow_StateChanged);             this.LostKeyboardFocus += delegate { isKeyFocus = false; };

            windowhost = new WindowHost();             timer = new DispatcherTimer(DispatcherPriority.ApplicationIdle, windowhost.Dispatcher);             timer.Interval = new System.TimeSpan(0, 0, 0, 0, 1);             timer.Tick += new EventHandler(timer_Tick);         }

  private void MainWindow_Loaded(object sender, RoutedEventArgs e)         {             this.Loaded -= MainWindow_Loaded;

            SplashWindow _splash = new SplashWindow();             _splash.Show();             this.IsEnabled = false;

            MessageListener.Instance.StartWork("第1/3步: 初始化引擎...", new DispatcherOperationCallback(InitStage0));             Thread.Sleep(1);

            MessageListener.Instance.StartWork("第2/3步: 读取数据...", new DispatcherOperationCallback(InitStage1));             Thread.Sleep(1);

            MessageListener.Instance.StartWork("第3/3步: 准备界面...", new DispatcherOperationCallback(InitStage2));             Thread.Sleep(1);

            this.IsEnabled = true;             _splash.Close();         }

   private object InitStage0(object frame)         {             windowhost.HwndHost = EngineService.Instance.InitilalizeEngine();             SceneService.Instance.Initialize();

            windowhost.WmResize += new ResizeEventHandler(windowHost_WmResize);             windowhost.WmMouse += new MouseMessageHandler(windowHost_WmMouse);

            ((DispatcherFrame)frame).Continue = false;             return null;         }

        private object InitStage1(object frame)         {             EngineService.Instance.RetrieveWowData();

            ((DispatcherFrame)frame).Continue = false;             return null;         }

        private object InitStage2(object frame)         {             InitCommandBindings();

            _characterContent.Initialize();             _npcContent.Initialize();             _spellVisualEffectContent.Initialize();             _mapContent.Initialize();

            _clothesContent.Initialize();             _weaponContent.Initialize();             _setContent.Initialize();

            _animationContent.Initialize();

            if (windowhost.HwndHost != IntPtr.Zero)             {                 _controlHostElement.Child = windowhost;             }

            _leftDockablePane.SetValue(ResizingPanel.ResizeWidthProperty, new GridLength(180));             _rightDockablePane.SetValue(ResizingPanel.ResizeWidthProperty, new GridLength(180));             _bottomDockablePane.SetValue(ResizingPanel.ResizeHeightProperty, new GridLength(150));

            this.Activate();

            timer.Start();

            ((DispatcherFrame)frame).Continue = false;             return null;         }