双击时调整JavaFX选项卡的大小 [英] Resize JavaFX tab when double click

问题描述

我有一个简单的JavaFX标签示例：

I have this simple example with JavaFX tabs:

    public class test extends Application
{

    private BorderPane root;

    // Navigation Utilization
    private ActionTabs actiontabs;

    @Override
    public void start(Stage primaryStage)
    {

        // Set Main Window Label
        primaryStage.setTitle("Desktop Client");
        Image iv = new Image(getClass().getResource("/images/internet-icon.png").toExternalForm());
        primaryStage.getIcons().add(iv);

        root = new BorderPane();
        root.setLeft(getLeftHBox(primaryStage, root));
        Scene scene = new Scene(root, 1000, 1000, Color.WHITESMOKE);  // Set main Stage color

        primaryStage.setScene(scene);

        Rectangle2D primaryScreenBounds = Screen.getPrimary().getVisualBounds();

        // Set Stage boundaries to visible bounds of the main screen
        primaryStage.setX(primaryScreenBounds.getMinX());
        primaryStage.setY(primaryScreenBounds.getMinY());
        primaryStage.setWidth(primaryScreenBounds.getWidth());  // Maximum width of the display
        primaryStage.setHeight(primaryScreenBounds.getHeight());    // Maximum height of the display
        primaryStage.show();

    }

    public static void main(String[] args)
    {
        launch(args);
    }

    private HBox getLeftHBox(Stage primaryStage, BorderPane root)
    {
        HBox hbox = new HBox();

        TabPane tabPane = new TabPane();
        BorderPane mainPane = new BorderPane();

        tabPane.setStyle("-fx-font-size: 12pt;"); // Set global size for the font
        // Create Tabs
        Tab tabA = new Tab();
        tabA.setText("Main Component");
        tabA.setStyle("-fx-font-size: 12pt;"); // Set size of the tab name
        tabA.setClosable(false); 
        // Add something in Tab
        StackPane tabA_stack = new StackPane();
        tabA_stack.setAlignment(Pos.CENTER);
        tabA_stack.getChildren().add(new Label("Label@Tab A"));
        tabA.setContent(tabA_stack);
        tabPane.getTabs().add(tabA);

        Tab tabB = new Tab();
        tabB.setText("Second Component");
        tabB.setStyle("-fx-font-size: 12pt;"); // Set size of the tab name
        tabB.setClosable(false); 
        // Add something in Tab
        StackPane tabB_stack = new StackPane();
        tabB_stack.setAlignment(Pos.CENTER);
        tabB_stack.getChildren().add(new Label("Label@Tab B"));
        tabB.setContent(tabB_stack);
        tabPane.getTabs().add(tabB);

        Tab tabC = new Tab();
        tabC.setText("Last Component");
        tabC.setStyle("-fx-font-size: 12pt;"); // Set size of the tab name
        tabC.setClosable(false); // da se mahne opciqta da se zatvarq tab
        // Add something in Tab
        StackPane tabC_vBox = new StackPane();
        tabC_vBox.setAlignment(Pos.CENTER);
        tabC_vBox.getChildren().add(new Label("Label@Tab C"));
        tabC.setContent(tabC_vBox);
        tabPane.getTabs().add(tabC);

        mainPane.setCenter(tabPane);

        mainPane.setPrefSize(300, 500);
        //mainPane.setLayoutX(5);     // Horizontal Position
        mainPane.setLayoutY(32);    // Vertical Position

        hbox.getChildren().addAll(mainPane);

        return hbox;
    }


}

我想什么时候我双击选项卡名称以最大化选项卡主体的大小，并使其与应用程序的大小具有相同的宽度和高度。类似于Eclipse IDE选项卡。这可以用JavaFX吗？

I want when I double click on a tab name to maximize the size of the body of the tab and make it the same width and height as the size of the application. Similar for example to Eclipse IDE tabs. Is this possible with JavaFX?

编辑

EDIT

这是代码我已经测试过了。

This is the code that I have tested.

public BorderPane initNavigation(Stage primaryStage)
    {

        VBox stackedTitledPanes = createStackedTitledPanes();

        ScrollPane scroll = makeScrollable(stackedTitledPanes);

        final TabPane tabPane = new TabPane();
        final BorderPane mainPane = new BorderPane();

        final Rectangle2D primaryScreenBounds = Screen.getPrimary().getVisualBounds();

        tabPane.setStyle("-fx-font-size: 12pt;"); // Set global size for the font
        // Create Tabs
        Tab tabA = new Tab();

        tabPane.setOnMouseClicked(new EventHandler<MouseEvent>()
        {
            private double sizeX, sizeY;
            private boolean first = true;

            @Override
            public void handle(MouseEvent me)
            {
                if (first)
                {
                    sizeX = mainPane.getWidth();
                    sizeY = mainPane.getHeight();
                    first = false;
                }

                if (me.getButton().equals(MouseButton.PRIMARY) && me.getClickCount() % 2 == 0)
                {
                    if (sizeX != mainPane.getWidth() || sizeY != mainPane.getHeight())
                    {
                        mainPane.setPrefSize(sizeX, sizeY);

                    }
                    else
                    {
                        mainPane.setPrefSize(primaryScreenBounds.getWidth(), primaryScreenBounds.getHeight());
                        //mainPane.toFront();
                    }
                }
            }
        });

        tabA.setText("Main Component");
        tabA.setContextMenu(makeTabContextMenu(tabA, tabPane));  // Set right mouse click menu
        // Add something in Tab
        StackPane tabA_stack = new StackPane();
        tabA_stack.setAlignment(Pos.CENTER);
        tabA_stack.getChildren().add(scroll);
        tabA.setContent(tabA_stack);
        tabPane.getTabs().add(tabA);

        Tab tabB = new Tab();
        tabB.setText("Second Component");
        tabB.setContextMenu(makeTabContextMenu(tabB, tabPane));  // Set right mouse click menu
        // Add something in Tab
        StackPane tabB_stack = new StackPane();
        tabB_stack.setAlignment(Pos.CENTER);
        tabB_stack.getChildren().add(new Label("Label@Tab B"));
        tabB.setContent(tabB_stack);
        tabPane.getTabs().add(tabB);

        Tab tabC = new Tab();
        tabC.setText("Last Component");
        tabC.setContextMenu(makeTabContextMenu(tabC, tabPane));  // Set right mouse click menu
        // Add something in Tab
        StackPane tabC_vBox = new StackPane();
        tabC_vBox.setAlignment(Pos.CENTER);
        tabC_vBox.getChildren().add(new Label("Label@Tab C"));
        tabC.setContent(tabC_vBox);
        tabPane.getTabs().add(tabC);

        mainPane.setCenter(tabPane);
        mainPane.setPrefSize(300, 500);
        //mainPane.setLayoutX(5);     // Horizontal Position
        mainPane.setLayoutY(32);    // Vertical Position

        scroll.setPrefSize(395, 580);
        scroll.setLayoutX(5);
        scroll.setLayoutY(32);

        return mainPane;
    }

问题是当我加倍时，我可以用标签代码覆盖舞台单击选项卡名称？

The problem is how I can cover the stage with the tab code when I double click on the tab name?

推荐答案

您需要在代码中添加几行，以下是您的示例，

You required to add few lines to your code, here is a sample for you,

.....

Tab tabA = new Tab();

Label tabALabel = new Label("Main Component");
tabA.setGraphic(tabALabel);

tabALabel.setOnMouseClicked(new EventHandler<MouseEvent>() {
    @Override
    public void handle(MouseEvent mouseEvent) {
        if (mouseEvent.getButton().equals(MouseButton.PRIMARY)) {
            if (mouseEvent.getClickCount() == 2) {

                mainPane.setPrefSize(500, 500); //Your required size

            }
       }
    }
});

....

试试这个，并判断是否有任何困难。

Try this, and tell if there's any difficulty.

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