C++ ViewportRefPtr类代码示例

//.........这里部分代码省略.........
        ExampleButton2->setText("Previous Card");
        ExampleButton2->setConstraints(ExampleButton2Constraints);

    // Add ActionListener
    BackCardActionListener TheBackCardActionListener;
    ExampleButton2->addActionListener( &TheBackCardActionListener);

        ExampleButton3->setText("This");

        ExampleButton4->setText("is");

        ExampleButton5->setText("Card");
    
        ExampleButton6->setText("Layout");

        ExampleButton7->setText("First Card");
        ExampleButton7->setConstraints(ExampleButton7Constraints);
        
    // Add ActionListener
    FirstCardActionListener TheFirstCardActionListener;
    ExampleButton7->addActionListener( &TheFirstCardActionListener);

        ExampleButton8->setText("Last Card");
        ExampleButton8->setConstraints(ExampleButton8Constraints);
    
    // Add ActionListener
    LastCardActionListener TheLastCardActionListener;
    ExampleButton8->addActionListener( &TheLastCardActionListener);


        ExampleCardPanel->setLayout(ExampleCardLayout);
        ExampleCardPanel->pushToChildren(ExampleButton3);
        ExampleCardPanel->pushToChildren(ExampleButton4);
        ExampleCardPanel->pushToChildren(ExampleButton5);
        ExampleCardPanel->pushToChildren(ExampleButton6);
        ExampleCardPanel->setConstraints(ExampleCardPanelConstraints);




    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
       MainInternalWindow->pushToChildren(ExampleButton1);
       MainInternalWindow->pushToChildren(ExampleButton2);
       MainInternalWindow->pushToChildren(ExampleButton7);
       MainInternalWindow->pushToChildren(ExampleButton8);
       MainInternalWindow->pushToChildren(ExampleCardPanel);
       MainInternalWindow->setLayout(MainInternalWindowLayout);
       MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
	   MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setDrawTitlebar(false);
	   MainInternalWindow->setResizable(false);
    

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);
    
	TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();


    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
            WinSize,
            "11CardLayout");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
      on the alignment) and the max is the east
      or west Component.  Takes VERTICAL_ORIENTATION
      and HORIZONTAL_ORIENTATION arguments.
      -setDividerPosition("smart" REAL): Determines the initial 
      location of the divider.  Note that this REAL is
      a percentage if between 0.0 and 1.0 (inclusive) 
      and absolute is greater than 1.0.  Also note that
      when resizing a window with a percentage, the
      divider will move, but with absolute, it does
      not until it no longer fits in the panel.
      -setDividerSize(SIZE): Determine divider Size
      in pixels.
      -setExpandable(bool): Determine whether
      divider can be moved by user.  Default is
      TRUE (is movable) while FALSE removes
      the users ability to move the divider.
      -setMaxDividerPosition("smart" REAL): Determine
      the Maximum position for the divider.
      -setMinDividerPosition("smart" REAL): Determine
      the Minimum position for the divider.  Note 
      that for both Max/Min, the "smart" REAL
      follows same format as in setDividerPosition;
      it is a percentage if between 0.0 and 1.0 
      and absolute when > 1.0

     ******************************************************/

    SplitPanelRefPtr ExampleSplitPanel = OSG::SplitPanel::create();

    ExampleSplitPanel->setConstraints(ExampleSplitPanelConstraints);
    ExampleSplitPanel->setMinComponent(ExampleSplitPanelPanel1);
    ExampleSplitPanel->setMaxComponent(ExampleSplitPanelPanel2);
    // ExampleSplitPanel->setOrientation(SplitPanel::VERTICAL_ORIENTATION);
    // ExampleSplitPanel->setDividerPosition(.25); // this is a percentage
    ExampleSplitPanel->setDividerPosition(300); // this is an absolute (300 > 1.0) 
    // location from the left/top
    ExampleSplitPanel->setDividerSize(5);
    // ExampleSplitPanel->setExpandable(false);
    ExampleSplitPanel->setMaxDividerPosition(.9);
    ExampleSplitPanel->setMinDividerPosition(220);

    // also, if you want to change the way the divider looks, you can always set a
    // DrawObjectCanvas in place of the default divider
    // ExampleSplitPanel->setDividerDrawObject(drawObjectName);

    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
    MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    MainInternalWindow->pushToChildren(ExampleSplitPanel);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);
    MainInternalWindow->setAllInsets(5);

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(TutorialGraphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);

    TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

    TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
    TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();

    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
                               WinSize,
                               "23SplitPanel");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
			of pixels between each row.


    ******************************************************/

    GridLayoutRefPtr MainInternalWindowLayout = OSG::GridLayout::create();

        MainInternalWindowLayout->setRows(3);
        MainInternalWindowLayout->setColumns(2);
        MainInternalWindowLayout->setHorizontalGap(4);
        MainInternalWindowLayout->setVerticalGap(4);


    /******************************************************
            
             Create and edit some Button Components.

			 Note that as with BoxLayout, Components
			 are resized to fit their respective
			 grid boxes.  Unless a MaxSize is set,
			 this will be the case.  This will
			 override even PreferredSizes (see
			 ExampleButton3).

    ******************************************************/

    ButtonRefPtr ExampleButton1 = OSG::Button::create();
    ButtonRefPtr ExampleButton2 = OSG::Button::create();
    ButtonRefPtr ExampleButton3 = OSG::Button::create();
    ButtonRefPtr ExampleButton4 = OSG::Button::create();
    ButtonRefPtr ExampleButton5 = OSG::Button::create();
    ButtonRefPtr ExampleButton6 = OSG::Button::create();

        ExampleButton1->setPreferredSize(Vec2f(50,50));
        ExampleButton1->setMaxSize(Vec2f(50,50));			//if MaxSize is commented out, this button then will revert to being the same size as the others in the grid.

         ExampleButton2->setPreferredSize(Vec2f(200,100));	//<----
															//    |
         ExampleButton3->setPreferredSize(Vec2f(50,100));		//Notice that even though these two differ in size they appear the same on the grid


    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
       MainInternalWindow->pushToChildren(ExampleButton1);
       MainInternalWindow->pushToChildren(ExampleButton2);
       MainInternalWindow->pushToChildren(ExampleButton3);
       MainInternalWindow->pushToChildren(ExampleButton4);
       MainInternalWindow->pushToChildren(ExampleButton5);
       MainInternalWindow->pushToChildren(ExampleButton6);
       MainInternalWindow->setLayout(MainInternalWindowLayout);
       MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
	   MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setDrawTitlebar(false);
	   MainInternalWindow->setResizable(false);
      
    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);
    
	TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();

    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
            WinSize,
            "07GridLayout");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
    LookAndFeelManager::the()->getLookAndFeel()->init();

    /******************************************************

      Create the DefaultMutableComboBoxModel and
      add Elements to it (several Colors
      in this case).  These will be the data
      values shown in the ComboBox.

     ******************************************************/   

    DefaultMutableComboBoxModelRefPtr ExampleComboBoxModel = DefaultMutableComboBoxModel::create();
    ExampleComboBoxModel->addElement(boost::any(Color4f(1.0,0.0,0.0,1.0)));
    ExampleComboBoxModel->addElement(boost::any(Color4f(0.0,1.0,0.0,1.0)));
    ExampleComboBoxModel->addElement(boost::any(Color4f(0.0,0.0,1.0,1.0)));
    ExampleComboBoxModel->addElement(boost::any(Color4f(0.0,0.0,0.0,1.0)));
	ExampleComboBoxModel->addElement(boost::any(Color4f(1.0,1.0,1.0,1.0)));
	ExampleComboBoxModel->addElement(boost::any(std::string("More Colors")));


    /******************************************************

      Create an editable ComboBox.  A ComboBox 
      has a Model just like various other 
      Components.  

     ******************************************************/   

	ColorChooserComboBoxComponentGeneratorRefPtr TheColorChooserComboBoxComponentGenerator = ColorChooserComboBoxComponentGenerator::create();
	
    //Create the ComboBox
    ComboBoxRefPtr ExampleComboBox = ComboBox::create();

    // Set the Model created above to the ComboBox
    ExampleComboBox->setModel(ExampleComboBoxModel);
	ExampleComboBox->setCellGenerator(TheColorChooserComboBoxComponentGenerator);
	ExampleComboBox->setEditable(false);


    // Determine where the ComboBox starts
    ExampleComboBox->setSelectedIndex(0);


	// Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
    MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    MainInternalWindow->pushToChildren(ExampleComboBox);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);

    //Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(graphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);

    TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr foreground = OSG::UIForeground::create();

    foreground->setDrawingSurface(TutorialDrawingSurface);


    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr viewport = mgr->getWindow()->getPort(0);
    viewport->addForeground(foreground);

    // Show the whole scene
    mgr->showAll();

    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
                               WinSize,
                               "33_2_ColorComboBox");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
        SplitButton->setText("Split");
        SplitButton->connectButtonSelected(boost::bind(handleSplitSelected,
                                                           _1,
                                                           theTextEditor.get()));
        SplitButton->connectButtonDeselected(boost::bind(handleSplitDeselected,
                                                           _1,
                                                           theTextEditor.get()));
        
        ButtonRefPtr LoadButton = Button::create();

	    LoadButton->setMinSize(Vec2f(50, 25));
        LoadButton->setMaxSize(Vec2f(200, 100));
        LoadButton->setPreferredSize(Vec2f(80, 40));
        LoadButton->setToolTipText("Click to open a file browser window");
        LoadButton->setText("Load File");

        LoadButton->connectActionPerformed(boost::bind(handleLoadButtonAction, _1, TutorialWindow.get(), theTextEditor.get()));

    	  
	    ButtonRefPtr SaveButton = Button::create();

	    SaveButton->setMinSize(Vec2f(50, 25));
        SaveButton->setMaxSize(Vec2f(200, 100));
        SaveButton->setPreferredSize(Vec2f(80, 40));
        SaveButton->setToolTipText("Click to save the currently opened file");
        SaveButton->setText("Save File");

        SaveButton->connectActionPerformed(boost::bind(handleSaveButtonAction, _1, TutorialWindow.get(),theTextEditor.get()));

        //Button Panel
        LayoutRefPtr ButtonPanelLayout = FlowLayout::create();

        PanelRecPtr ButtonPanel = Panel::createEmpty();
        ButtonPanel->setPreferredSize(Vec2f(300, 300));
        ButtonPanel->setLayout(ButtonPanelLayout);
        ButtonPanel->pushToChildren(LoadButton);
        ButtonPanel->pushToChildren(SaveButton);
        ButtonPanel->pushToChildren(SplitButton);
        ButtonPanel->pushToChildren(ClipboardButton);

        // Create The Main InternalWindow
        // Create Background to be used with the Main InternalWindow
        ColorLayerRefPtr MainInternalWindowBackground = ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

        LayoutRefPtr MainInternalWindowLayout = FlowLayout::create();

        InternalWindowRefPtr MainInternalWindow = InternalWindow::create();
        //MainInternalWindow->pushToChildren(TextAreaScrollPanel);
        MainInternalWindow->pushToChildren(theTextEditor);
        MainInternalWindow->pushToChildren(ButtonPanel);
        MainInternalWindow->setLayout(MainInternalWindowLayout);
        MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
        MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
        MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.95f,0.95f));
        //MainInternalWindow->setDrawTitlebar(true);
        //MainInternalWindow->setResizable(true);

        // Create the Drawing Surface
        UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);
    	
	    TutorialDrawingSurface->openWindow(MainInternalWindow);

        // Create the UI Foreground Object
        UIForegroundRefPtr TutorialUIForeground = UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);


        sceneManager.setRoot(scene);

        // Add the UI Foreground Object to the Scene
        ViewportRefPtr TutorialViewport = sceneManager.getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);
    		

        // Show the whole Scene
        sceneManager.showAll();

    	
        //Open Window
        Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.95f);
        Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
        TutorialWindow->openWindow(WinPos,
                                   WinSize,
                                   "06Editor");
        TutorialWindow->connectKeyTyped(boost::bind(keyTyped, _1, theTextEditor.get()));

        commitChanges();

        //Enter main Loop
        TutorialWindow->mainLoop();
    }

    osgExit();

    return 0;
}

int main(int argc, char **argv)
{
    // OSG init
    osgInit(argc,argv);

    TutorialWindow = createNativeWindow();
    TutorialWindow->initWindow();

    TutorialWindow->setDisplayCallback(display);
    TutorialWindow->setReshapeCallback(reshape);

    TutorialKeyListener TheKeyListener;
    TutorialWindow->addKeyListener(&TheKeyListener);

    // Make Torus Node (creates Torus in background of scene)
    NodeRefPtr TorusGeometryNode = makeTorus(.5, 2, 16, 16);

    // Make Main Scene Node and add the Torus
    NodeRefPtr scene = OSG::Node::create();
    scene->setCore(OSG::Group::create());
    scene->addChild(TorusGeometryNode);

    // Create the Graphics
    GraphicsRefPtr TutorialGraphics = OSG::Graphics2D::create();

    // Initialize the LookAndFeelManager to enable default settings
    LookAndFeelManager::the()->getLookAndFeel()->init();


    /******************************************************

        Create and edit a CheckboxButton.

    	Note: the only function call shown
    	specific to	CheckboxButton is setSelected.
    	In DefaultLookAndFeel, the options
    	for changing the style of the CheckBox
    	are shown.  CheckboxButton also
    	inherits off Button so all features
    	of Button may be used.

    	-setSelected(bool): Determines if the
    		CheckboxButton is checked(true) or
    		not checked(false).

    ******************************************************/
    CheckboxButtonRefPtr ExampleCheckboxButton = OSG::CheckboxButton::create();
    ExampleCheckboxButton->setMinSize(Vec2f(50, 25));
    ExampleCheckboxButton->setMaxSize(Vec2f(300, 100));
    ExampleCheckboxButton->setPreferredSize(Vec2f(200, 50));
    ExampleCheckboxButton->setEnabled(true);
    ExampleCheckboxButton->setText("Checkbox Button");
    ExampleCheckboxButton->setAlignment(Vec2f(0.5,0.5));
    ExampleCheckboxButton->setSelected(true);


    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
    MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    MainInternalWindow->pushToChildren(ExampleCheckboxButton);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(TutorialGraphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);

    TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

    TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);


    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
    TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();


//.........这里部分代码省略.........

//.........这里部分代码省略.........

        // Create an Action and assign it to ExampleButton
        // This Class is defined above, and will cause the output
        // window to display "Button 1 Action" when pressed
        ExampleButton->connectActionPerformed(boost::bind(actionPerformed, _1));

        /******************************************************

          Create a ToggleButton and determine its 
          characteristics.  ToggleButton inherits
          off of Button, so all characteristsics
          used above can be used with ToggleButtons
          as well.

          The only difference is that when pressed,
          ToggleButton remains pressed until pressed 
          again.

          -setSelected(bool): Determine whether the 
          ToggleButton is Selected (true) or
          deselected (false).  

         ******************************************************/
        ToggleButtonRefPtr ExampleToggleButton = OSG::ToggleButton::create();

        ExampleToggleButton->setSelected(false);
        ExampleToggleButton->setText("ToggleMe");
        ExampleToggleButton->setToolTipText("Toggle Button ToolTip");

        //Button with Image
        ButtonRefPtr ExampleDrawObjectButton = OSG::Button::create();
        ExampleDrawObjectButton->setDrawObjectToTextAlignment(Button::ALIGN_DRAW_OBJECT_RIGHT_OF_TEXT);
        ExampleDrawObjectButton->setText("Icon");

        ExampleDrawObjectButton->setImage(std::string("./Data/Icon.png"));
        ExampleDrawObjectButton->setActiveImage(std::string("./Data/Icon.png"));
        ExampleDrawObjectButton->setFocusedImage(std::string("./Data/Icon.png"));
        ExampleDrawObjectButton->setRolloverImage(std::string("./Data/Icon.png"));
        ExampleDrawObjectButton->setDisabledImage(std::string("./Data/Icon.png"));

        // Create The Main InternalWindow
        // Create Background to be used with the Main InternalWindow
        ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));
        InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
        LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();
        MainInternalWindow->pushToChildren(ExampleButton);
        MainInternalWindow->pushToChildren(ExampleToggleButton);
        MainInternalWindow->pushToChildren(ExampleDrawObjectButton);
        MainInternalWindow->setLayout(MainInternalWindowLayout);
        MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
        MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
        MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
        MainInternalWindow->setDrawTitlebar(false);
        MainInternalWindow->setResizable(false);

        // Create the Drawing Surface
        UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);

        TutorialDrawingSurface->openWindow(MainInternalWindow);

        // Create the UI Foreground Object
        UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

        sceneManager->setRoot(scene);

        // Add the UI Foreground Object to the Scene
        ViewportRefPtr TutorialViewport = sceneManager->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);


        //Create the Documentation Foreground and add it to the viewport
        SimpleScreenDoc TheSimpleScreenDoc(sceneManager, TutorialWindow);

        // Show the whole Scene
        sceneManager->showAll();

        //Attach key controls

        //Open Window
        Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
        Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
        TutorialWindow->openWindow(WinPos,
                                   WinSize,
                                   "01Button");

        commitChanges();

        //Enter main Loop
        TutorialWindow->mainLoop();
    }

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
        GraphicsRefPtr TutorialGraphics = OSG::Graphics2D::create();

        // Initialize the LookAndFeelManager to enable default settings
        LookAndFeelManager::the()->getLookAndFeel()->init();

        ButtonRefPtr ExampleButton = OSG::Button::create();
        ExampleButton->setMinSize(Vec2f(50, 25));
        ExampleButton->setMaxSize(Vec2f(200, 100));
        ExampleButton->setPreferredSize(Vec2f(100, 50));
        ExampleButton->setText("Button 1");

        // Create an ActionListener and assign it to ExampleButton
        // This Class is defined above, and will cause the output
        // window to display "Button 1 Action" when pressed
        ExampleButton->connectActionPerformed(boost::bind(actionPerformed, _1));

        //Toggle Button
        ToggleButtonRefPtr ExampleToggleButton = OSG::ToggleButton::create();
        ExampleToggleButton->setSelected(false);
        ExampleToggleButton->setText("ToggleMe");


        //Text Field
        TextFieldRefPtr ExampleTextField = OSG::TextField::create();
        
        //Password Field
        PasswordFieldRefPtr ExamplePasswordField = OSG::PasswordField::create();

        LayoutRefPtr MainLayout = OSG::FlowLayout::create();

        //Panel
        PanelRecPtr ExamplePanel = Panel::create();
        ExamplePanel->setPreferredSize(Vec2f(200.0f,200.0f));
        ExamplePanel->setLayout(MainLayout);
        ExamplePanel->pushToChildren(ExampleTextField);
        ExamplePanel->pushToChildren(ExamplePasswordField);

        //Text Field 2
        TextFieldRefPtr ExampleTextField2 = OSG::TextField::create();

        // Create The Main InternalWindow
        // Create Background to be used with the Main InternalWindow
        ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

        InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
        MainInternalWindow->pushToChildren(ExampleButton);
        MainInternalWindow->pushToChildren(ExampleToggleButton);
        MainInternalWindow->pushToChildren(ExamplePanel);
        MainInternalWindow->pushToChildren(ExampleTextField2);

        MainInternalWindow->setLayout(MainLayout);
        MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
        MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
        MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
        MainInternalWindow->setDrawTitlebar(false);
        MainInternalWindow->setResizable(false);

        // Create the Drawing Surface
        UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);

        TutorialDrawingSurface->openWindow(MainInternalWindow);

        // Create the UI Foreground Object
        UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

        sceneManager->setRoot(scene);

        // Add the UI Foreground Object to the Scene
        ViewportRefPtr TutorialViewport = sceneManager->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);

        //Create the Documentation Foreground and add it to the viewport
        SimpleScreenDoc TheSimpleScreenDoc(sceneManager, TutorialWindow);

        // Show the whole Scene
        sceneManager->showAll();


        //Open Window
        Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
        Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5f);
        TutorialWindow->openWindow(WinPos,
                                   WinSize,
                                   "54FocusProgession");

        commitChanges();

        //Enter main Loop
        TutorialWindow->mainLoop();
    }

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
     ******************************************************/   

    //Create the ComboBox
    ComboBoxRefPtr ExampleComboBox = ComboBox::create();

    // Set the Model created above to the ComboBox
    ExampleComboBox->setModel(ExampleComboBoxModel);

    // Determine where the ComboBox starts
    ExampleComboBox->setSelectedIndex(0);

    /******************************************************

      Create a non-editable ComboBox.  

      -setEditable(bool): Determine whether
      the user can type in the ComboBox
      or if it is uneditable.  In this
      case, it is set to false.

      When creating a non-editable ComboBox,
      a Renderer must also be assigned.  For
      editable ComboBoxes, the ComboBox
      automatically shows its text due to the
      nature of the ComboBox.  However, when
      uneditable, this aspect of the ComboBox
      is disabled, and so to display the 
      selection, a renderer must be created and
      assigned to the ComboBox.

Note: as with Sliders and ScrollBars,
having the same Model assigned causes
the ComboBoxes to be tied together.

     ******************************************************/   
    // Create another ComboBox
    ComboBoxRefPtr ExampleUneditableComboBox = ComboBox::create();

    // Set it to be uneditable
    ExampleUneditableComboBox->setEditable(false);
    ExampleUneditableComboBox->setModel(ExampleComboBoxModel);

    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
    MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    MainInternalWindow->pushToChildren(ExampleComboBox);
    MainInternalWindow->pushToChildren(ExampleUneditableComboBox);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);

    //Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(graphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);

    TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr foreground = OSG::UIForeground::create();

    foreground->setDrawingSurface(TutorialDrawingSurface);


    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr viewport = mgr->getWindow()->getPort(0);
    viewport->addForeground(foreground);

    // Show the whole scene
    mgr->showAll();

    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
                               WinSize,
                               "33ComboBox");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
        -setText("TextToBeDisplayed"): Determine
		    initial Text within TextField.
        -setFont(FontName): Determine the Font
            used within TextField.
        -setSelectionStart(StartCharacterNumber):
            Determine the character with which  
			the selection will initially start.
        -setSelectionEnd(EndCharacterNumber): 
            Determine the character which the
			selection ends before.
        -setAlignment(float): Determine 
			the alignment of the text.  
			The float is a percentage is from the 
			top of the text [0.0-1.0].  Note: be 
			sure to visually verify this, as due
            to font size and line size this does
            not always place it exactly
            at the percentage point.

    ******************************************************/

    // Create a TextField component
    TextFieldRefPtr ExampleTextField = OSG::TextField::create();

        ExampleTextField->setPreferredSize(Vec2f(100, 50));
        ExampleTextField->setTextColor(Color4f(0.0, 0.0, 0.0, 1.0));
        ExampleTextField->setSelectionBoxColor(Color4f(0.0, 0.0, 1.0, 1.0));
        ExampleTextField->setSelectionTextColor(Color4f(1.0, 1.0, 1.0, 1.0));
        ExampleTextField->setText("What");
        ExampleTextField->setFont(sampleFont);
        // The next two functions will select the "a" from above
        ExampleTextField->setSelectionStart(2);
        ExampleTextField->setSelectionEnd(3);
        ExampleTextField->setAlignment(Vec2f(0.0,0.5));
        
    // Create another TextField Component
    TextFieldRefPtr ExampleTextField2 = OSG::TextField::create();
        ExampleTextField2->setText("");
        ExampleTextField2->setEmptyDescText("Write in me, please");
        ExampleTextField2->setPreferredSize(Vec2f(200.0f,ExampleTextField2->getPreferredSize().y()));


    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
       MainInternalWindow->pushToChildren(ExampleTextField);
       MainInternalWindow->pushToChildren(ExampleTextField2);
       MainInternalWindow->setLayout(MainInternalWindowLayout);
       MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
	   MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setDrawTitlebar(false);
	   MainInternalWindow->setResizable(false);

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);
	
	TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();


    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
            WinSize,
            "16TextField");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
		distorted.  For Layouts which will often
		be dynamically changed, FlowLayout is not
		the best choice.
	
		-setHorizontalGap(int): Determine the Horizontal
			gap in pixels between Components in 
			FlowLayout.
		-setVerticalGap(int): Determine the Vertical
			gap in pixels between Components in 
			FlowLayout.
		-setOrientation(ENUM): Determine whether the
			Layout is arranged Vertically or
			Horizontally.  Takes HORIZONTAL_ORIENTATION
			or VERTICAL_ORIENTATION arguments.
		-setMajorAxisAlignment(ENUM): Determines
			the alignment of the entire Layout 
			within its ComponentContainer.  See below.
		-setMinorAxistAlignment(ENUM): Determines
			the alignment of Components within
			the Layout.  See below.

		Both of the last two functions take the
		following arguments: AXIS_MAX_ALIGNMENT, 
		AXIS_CENTER_ALIGNMENT, and AXIS_MIN_ALIGNMENT.
		MAX puts it to the bottom/right, CENTER
		centers it, and MIN puts it to the
		top/left (for Vertical/Horizontal as
		set above, respectively).

    ******************************************************/
    FlowLayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();
        MainInternalWindowLayout->setHorizontalGap(3.0f);
        MainInternalWindowLayout->setVerticalGap(3.0f);
		MainInternalWindowLayout->setOrientation(FlowLayout::VERTICAL_ORIENTATION);
        MainInternalWindowLayout->setMajorAxisAlignment(0.5f);
        MainInternalWindowLayout->setMinorAxisAlignment(1.0f);
    
    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
        MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
       MainInternalWindow->pushToChildren(ExampleButton1);
       MainInternalWindow->pushToChildren(ExampleButton2);
       MainInternalWindow->pushToChildren(ExampleButton3);
       MainInternalWindow->pushToChildren(ExampleButton4);
       MainInternalWindow->pushToChildren(ExampleButton5);
       MainInternalWindow->pushToChildren(ExampleButton6);
       MainInternalWindow->setLayout(MainInternalWindowLayout);
       MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
	   MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.5f,0.5f));
	   MainInternalWindow->setDrawTitlebar(false);
	   MainInternalWindow->setResizable(false);
	   // Add a 10 pixel "padding" inside the MainFrame
       MainInternalWindow->setAllInsets(10);

    //Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
        TutorialDrawingSurface->setGraphics(TutorialGraphics);
        TutorialDrawingSurface->setEventProducer(TutorialWindow);
    
	TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

        TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);


    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
        TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();


    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
            WinSize,
            "05FlowLayout");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
    TheCommandManager = CommandManager::create(TheUndoManager);
	
    //UndoList
	UndoRedoListModel = DefaultListModel::create();
    UndoRedoListModel->pushBack(boost::any(std::string("Top")));
	ListSelectionModelPtr UndoRedoListSelectionModel(new DefaultListSelectionModel());

	UndoRedoList = List::create();
    UndoRedoList->setPreferredSize(Vec2f(200, 300));
    UndoRedoList->setOrientation(List::VERTICAL_ORIENTATION);
	UndoRedoList->setModel(UndoRedoListModel);

    UndoRedoList->setSelectionModel(UndoRedoListSelectionModel);

    UndoRedoListListener TheUndoRedoListListener;
    UndoRedoList->getSelectionModel()->addListSelectionListener(&TheUndoRedoListListener);

    UndoButton = OSG::Button::create();
    UndoButton->setText("Undo");
	UndoButton->setEnabled(TheUndoManager->numberOfUndos() != 0);
    UndoButtonActionListener TheUndoButtonActionListener;
    UndoButton->addActionListener(&TheUndoButtonActionListener);
	

    RedoButton = OSG::Button::create();
    RedoButton->setText("Redo");
	RedoButton->setEnabled(TheUndoManager->numberOfRedos() != 0);
    RedoButtonActionListener TheRedoButtonActionListener;
    RedoButton->addActionListener(&TheRedoButtonActionListener);

    // Create a ScrollPanel for easier viewing of the List (see 27ScrollPanel)
    ScrollPanelRefPtr UndoRedoScrollPanel = ScrollPanel::create();
    UndoRedoScrollPanel->setPreferredSize(Vec2f(200,200));
    UndoRedoScrollPanel->setHorizontalResizePolicy(ScrollPanel::RESIZE_TO_VIEW);
    UndoRedoScrollPanel->setViewComponent(UndoRedoList);

    //Background Editor Field
    //FieldEditorComponentRefPtr TheEditor = FieldEditorFactory::the()->createDefaultEditor(TutorialBackground, SolidBackground::ColorFieldId, TheCommandManager);
    FieldEditorComponentRefPtr TheEditor = FieldEditorFactory::the()->createDefaultEditor(RedoButton, Button::TextFieldId, TheCommandManager);
    TheEditor->setPreferredSize(Vec2f(100.0f, 20.0f));

    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    ColorLayerRefPtr MainInternalWindowBackground = OSG::ColorLayer::create();
    MainInternalWindowBackground->setColor(Color4f(1.0,1.0,1.0,0.5));
    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();
    MainInternalWindow->pushToChildren(TheEditor);
    MainInternalWindow->pushToChildren(UndoRedoScrollPanel);
    MainInternalWindow->pushToChildren(UndoButton);
    MainInternalWindow->pushToChildren(RedoButton);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(0.95f,0.95f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(TutorialGraphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);
    
	TutorialDrawingSurface->openWindow(MainInternalWindow);
	
	// Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

    TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);

    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
    TutorialViewport->addForeground(TutorialUIForeground);
    TutorialViewport->setBackground(TutorialBackground);

    // Show the whole Scene
    mgr->showAll();


    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
                                WinSize,
                                "02GenericFieldEditor");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}

//.........这里部分代码省略.........
    /******************************************************

      Create MainMenuBar and adds the Menus
      created above to it.

      Also creates several Backgrounds
      to improve MenuBar overall look.
      Both the MenuBar and Menu can have
      Backgrounds; the set up currently
      is to have EmptyBackgrounds in 
      each Menu allowing a single
      overall MenuBar Background which
      is given to the MenuBar itself.

      This can be easily changed by adding
      different Backgrounds to the 
      File and Edit Menus.

Note: The MenuBar is added to the
MainFrame below.

     ******************************************************/
    // Creates two Backgrounds

    MenuBarRefPtr MainMenuBar = MenuBar::create();
    // Adds the two Menus to the MainMenuBar
    MainMenuBar->addMenu(FileMenu);
    MainMenuBar->addMenu(EditMenu);

    // Create two Labels
    LabelRefPtr ExampleLabel1 = OSG::Label::create();
    LabelRefPtr ExampleLabel2 = OSG::Label::create();

    ExampleLabel1->setText("Look up in the corner!");
    ExampleLabel1->setPreferredSize(Vec2f(150, 25));    

    ExampleLabel2->setText("Hit Control + Z");
    ExampleLabel2->setPreferredSize(Vec2f(150, 25));    

    // Create The Main InternalWindow
    // Create Background to be used with the Main InternalWindow
    EmptyLayerRefPtr MainInternalWindowBackground = OSG::EmptyLayer::create();
    EmptyBorderRefPtr MainInternalWindowBorder = OSG::EmptyBorder::create();

    LayoutRefPtr MainInternalWindowLayout = OSG::FlowLayout::create();

    InternalWindowRefPtr MainInternalWindow = OSG::InternalWindow::create();
    MainInternalWindow->pushToChildren(ExampleLabel1);
    MainInternalWindow->pushToChildren(ExampleLabel2);
    MainInternalWindow->setLayout(MainInternalWindowLayout);
    MainInternalWindow->setMenuBar(MainMenuBar);
    MainInternalWindow->setBackgrounds(MainInternalWindowBackground);
    MainInternalWindow->setBorders(MainInternalWindowBorder);
    MainInternalWindow->setAlignmentInDrawingSurface(Vec2f(0.5f,0.5f));
    MainInternalWindow->setScalingInDrawingSurface(Vec2f(1.0f,1.0f));
    MainInternalWindow->setDrawTitlebar(false);
    MainInternalWindow->setResizable(false);

    // Create the Drawing Surface
    UIDrawingSurfaceRefPtr TutorialDrawingSurface = UIDrawingSurface::create();
    TutorialDrawingSurface->setGraphics(TutorialGraphics);
    TutorialDrawingSurface->setEventProducer(TutorialWindow);

    TutorialDrawingSurface->openWindow(MainInternalWindow);

    // Create the UI Foreground Object
    UIForegroundRefPtr TutorialUIForeground = OSG::UIForeground::create();

    TutorialUIForeground->setDrawingSurface(TutorialDrawingSurface);


    // Create the SimpleSceneManager helper
    mgr = new SimpleSceneManager;

    // Tell the Manager what to manage
    mgr->setWindow(TutorialWindow);
    mgr->setRoot(scene);

    // Add the UI Foreground Object to the Scene
    ViewportRefPtr TutorialViewport = mgr->getWindow()->getPort(0);
    TutorialViewport->addForeground(TutorialUIForeground);

    // Show the whole Scene
    mgr->showAll();


    //Open Window
    Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
    Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
    TutorialWindow->openWindow(WinPos,
                               WinSize,
                               "26MenuBar");

    //Enter main Loop
    TutorialWindow->mainLoop();

    osgExit();

    return 0;
}