Bind BorderPane width and height with Scene : BorderPane « JavaFX « Java

1. Java
2. JavaFX
3. BorderPane

Bind BorderPane width and height with Scene

 

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.layout.BorderPane;
import javafx.scene.paint.Color;
import javafx.stage.Stage;

public class Main extends Application {

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

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Title");
        Group root = new Group();
        Scene scene = new Scene(root, 400, 250, Color.WHITE);

        MenuBar menuBar = new MenuBar();
        EventHandler<ActionEvent> action = changeTabPlacement();

        Menu menu = new Menu("Direction");
        MenuItem left = new MenuItem("Left");

        left.setOnAction(action);
        menu.getItems().add(left);

        MenuItem right = new MenuItem("Right");
        right.setOnAction(action);
        menu.getItems().add(right);

        MenuItem top = new MenuItem("Top");
        top.setOnAction(action);
        menu.getItems().add(top);

        MenuItem bottom = new MenuItem("Bottom");
        bottom.setOnAction(action);
        menu.getItems().add(bottom);

        menuBar.getMenus().add(menu);

        BorderPane borderPane = new BorderPane();

        borderPane.prefHeightProperty().bind(scene.heightProperty());
        borderPane.prefWidthProperty().bind(scene.widthProperty());
        
        borderPane.setTop(menuBar);
        
        root.getChildren().add(borderPane);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private EventHandler<ActionEvent> changeTabPlacement() {
        return new EventHandler<ActionEvent>() {

            public void handle(ActionEvent event) {
                MenuItem mItem = (MenuItem) event.getSource();
                String side = mItem.getText();
                if ("left".equalsIgnoreCase(side)) {
                    System.out.println("left");
                } else if ("right".equalsIgnoreCase(side)) {
                    System.out.println("right");
                } else if ("top".equalsIgnoreCase(side)) {
                    System.out.println("top");
                } else if ("bottom".equalsIgnoreCase(side)) {
                    System.out.println("bottom");
                }
            }
        };
    }
}

   
  

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