Revit可停靠窗体的实现

【实例简介】Revit可停靠窗体的实现
【实例截图】
【核心代码】public class Ribbon : IExternalApplication
    {
        public Result OnStartup(UIControlledApplication a)
        {
            a.CreateRibbonTab("AEC LABS");
            RibbonPanel AECPanelDebug = a.CreateRibbonPanel("AEC LABS", "AEC LABS");
            string path = Assembly.GetExecutingAssembly().Location;

            #region DockableWindow
            PushButtonData pushButtonRegisterDockableWindow = new PushButtonData("RegisterDockableWindow", "RegisterDockableWindow", path, "DockableDialog.RegisterDockableWindow");
            pushButtonRegisterDockableWindow.LargeImage = GetImage(Resources.green.GetHbitmap());
            pushButtonRegisterDockableWindow.AvailabilityClassName = "DockableDialog.AvailabilityNoOpenDocument";
            PushButtonData pushButtonShowDockableWindow = new PushButtonData("Show DockableWindow", "Show DockableWindow", path, "DockableDialog.ShowDockableWindow");
            pushButtonShowDockableWindow.LargeImage = GetImage(Resources.red.GetHbitmap());
            PushButtonData pushButtonHideDockableWindow = new PushButtonData("Hide DockableWindow", "Hide DockableWindow", path, "DockableDialog.HideDockableWindow");
            pushButtonHideDockableWindow.LargeImage = GetImage(Resources.orange.GetHbitmap());
            //IList<RibbonItem> ribbonpushButtonDockableWindow = AECPanelDebug.AddStackedItems(pushButtonRegisterDockableWindow, pushButtonShowDockableWindow, pushButtonHideDockableWindow);

            RibbonItem ri1 = AECPanelDebug.AddItem(pushButtonRegisterDockableWindow);
            RibbonItem ri2 = AECPanelDebug.AddItem(pushButtonShowDockableWindow);
            RibbonItem ri3 = AECPanelDebug.AddItem(pushButtonHideDockableWindow);
            #endregion

            return Result.Succeeded;
        }

        public Result OnShutdown(UIControlledApplication a)
        {
            return Result.Succeeded;
        }

        private System.Windows.Media.Imaging.BitmapSource GetImage(IntPtr bm)
        {
            System.Windows.Media.Imaging.BitmapSource bmSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bm,
                    IntPtr.Zero,
                    System.Windows.Int32Rect.Empty,
                    System.Windows.Media.Imaging.BitmapSizeOptions.FromEmptyOptions());

            return bmSource;
        }
    }

    /// <summary>
    /// You can only register a dockable dialog in "Zero doc state"
    /// </summary>
    public class AvailabilityNoOpenDocument : IExternalCommandAvailability
    {
        public bool IsCommandAvailable(
          UIApplication a,
          CategorySet b)
        {
            if (a.ActiveUIDocument == null)
            {
                return true;
            }
            return false;
        }
    }

    /// <summary>
    /// Register your dockable dialog
    /// </summary>
    [Transaction(TransactionMode.Manual)]
    public class RegisterDockableWindow : IExternalCommand
    {
        MainPage m_MyDockableWindow = null;

        public Result Execute(
          ExternalCommandData commandData,
          ref string message,
          ElementSet elements)
        {
            DockablePaneProviderData data = new DockablePaneProviderData();
            MainPage MainDockableWindow = new MainPage();
            m_MyDockableWindow = MainDockableWindow;
            //MainDockableWindow.SetupDockablePane(me);
            data.FrameworkElement = MainDockableWindow as System.Windows.FrameworkElement;
            data.InitialState = new DockablePaneState();
            data.InitialState.DockPosition = DockPosition.Tabbed;
            //DockablePaneId targetPane;
            //if (m_targetGuid == Guid.Empty)
            //    targetPane = null;
            //else targetPane = new DockablePaneId(m_targetGuid);
            //if (m_position == DockPosition.Tabbed)
            data.InitialState.TabBehind = DockablePanes.BuiltInDockablePanes.ProjectBrowser;
            DockablePaneId dpid = new DockablePaneId(new Guid("{098d4b76-f99c-44f2-a10e-36723d4ca274}"));
            commandData.Application.RegisterDockablePane(dpid, "AEC Dockable Window", MainDockableWindow as IDockablePaneProvider);
            commandData.Application.ViewActivated = new EventHandler<ViewActivatedEventArgs>(Application_ViewActivated);
            return Result.Succeeded;
        }

        void Application_ViewActivated(object sender, ViewActivatedEventArgs e)
        {
            m_MyDockableWindow.lblProjectName.Content = e.Document.ProjectInformation.Name;
        }
    }

    /// <summary>
    /// Show dockable dialog
    /// </summary>
    [Transaction(TransactionMode.ReadOnly)]
    public class ShowDockableWindow : IExternalCommand
    {
        public Result Execute(
          ExternalCommandData commandData,
          ref string message,
          ElementSet elements)
        {
            DockablePaneId dpid = new DockablePaneId(new Guid("{098d4b76-f99c-44f2-a10e-36723d4ca274}"));
            DockablePane dp = commandData.Application.GetDockablePane(dpid);
            dp.Show();
            return Result.Succeeded;
        }
    }

    /// <summary>
    /// Hide dockable dialog
    /// </summary>
    [Transaction(TransactionMode.ReadOnly)]
    public class HideDockableWindow : IExternalCommand
    {
        public Result Execute(
          ExternalCommandData commandData,
          ref string message,
          ElementSet elements)
        {
            DockablePaneId dpid = new DockablePaneId(new Guid("{098d4b76-f99c-44f2-a10e-36723d4ca274}"));
            DockablePane dp = commandData.Application.GetDockablePane(dpid);
            dp.Hide();
            return Result.Succeeded;
        }
    }