Compatibilità swing JavaFX 8

Question

Attualmente sto valutando se sia possibile convertire la mia attuale applicazione Swing in JavaFX 8 utilizzando SwingNode e quindi modificare lentamente tutto in componenti JavaFX. Mi sono imbattuto in due problemi, che possono essere bug persistenti in JavaFX 8, ma non posso esserne sicuro.

1. Dopo l'aggiunta di contenuti al SwingNode menu JavaFX non è dipinta correttamente (la maggior parte del tempo), con conseguente una barra nera

2. Fare JScrollBars non opachi non sembra funzionare

   import java.awt.Color; 
   import java.awt.GridLayout; 
   
   import javafx.application.Application; 
   import javafx.embed.swing.SwingNode; 
   import javafx.scene.Scene; 
   import javafx.scene.control.Menu; 
   import javafx.scene.control.MenuBar; 
   import javafx.scene.layout.StackPane; 
   import javafx.scene.layout.VBox; 
   import javafx.stage.Stage; 
   
   import javax.swing.JPanel; 
   import javax.swing.JScrollPane; 
   
   
   public class Test extends Application {  
   
       @Override 
       public void start(Stage stage) throws Exception { 
        stage.setMaximized(true); 
   
        VBox vbox = new VBox(); 
        MenuBar menuBar = new MenuBar(); 
        menuBar.getMenus().add(new Menu("bla")); 
        vbox.getChildren().add(menuBar); 
   
        StackPane mainPane = new StackPane();   
        mainPane.setPrefSize(9999, 9999); //Better way to ensure all space used? 
        vbox.getChildren().add(mainPane); 
        vbox.setVisible(true); 
   
        Scene scene = new Scene(vbox, 9999, 9999); //Better way to ensure all space used? 
        stage.setScene(scene); 
   
        SwingNode swingNode = new SwingNode(); 
        mainPane.getChildren().add(swingNode); 
   
        JPanel jPanel = new JPanel(); 
        swingNode.setContent(jPanel); //Seems to interfere with painting of menu 
   
        jPanel.setBackground(Color.WHITE); 
        jPanel.setLayout(new GridLayout(2, 1)); 
        jPanel.add(new JPanel()); 
   
        JPanel nonOpaquePanel = new JPanel(); 
        nonOpaquePanel.setOpaque(false); 
        JScrollPane scrollPane = new JScrollPane(nonOpaquePanel); 
        scrollPane.setOpaque(false); 
        scrollPane.getViewport().setOpaque(false); //Black background -> Bug? 
        jPanel.add(scrollPane); 
   
        stage.show(); 
       } 
   
       /** 
       * Main method launching the application. 
       */ 
       public static void main(String[] args) { 
        launch(args); 
       } 
   } 
   

   Executable jar

Edit: ho modificato m y esempio per usare EDT per creare i componenti Swing. Questo non ha cambiato nulla. O sto facendo qualcosa di sbagliato?

import java.awt.Color; 
import java.awt.Dimension; 
import java.awt.GridLayout; 

import javafx.application.Application; 
import javafx.application.Platform; 
import javafx.embed.swing.SwingNode; 
import javafx.scene.Scene; 
import javafx.scene.control.Menu; 
import javafx.scene.control.MenuBar; 
import javafx.scene.layout.StackPane; 
import javafx.scene.layout.VBox; 
import javafx.stage.Stage; 

import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.SwingUtilities; 


public class Test extends Application { 
    private JPanel jPanel = null; 

    @Override 
    public void start(Stage stage) throws Exception { 
     if (Platform.isFxApplicationThread()) { // all of this happens on the fx application thread 
      stage.setMaximized(true); 

      VBox vbox = new VBox(); 
      MenuBar menuBar = new MenuBar(); 
      menuBar.getMenus().add(new Menu("bla")); 
      vbox.getChildren().add(menuBar); 

      StackPane mainPane = new StackPane();   
      mainPane.setPrefSize(9999, 9999); //Better way to ensure all space used? 
      vbox.getChildren().add(mainPane); 
      vbox.setVisible(true); 

      Scene scene = new Scene(vbox, 9999, 9999); //Better way to ensure all space used? 
      stage.setScene(scene); 

      SwingNode swingNode = new SwingNode(); 
      mainPane.getChildren().add(swingNode);      

      SwingUtilities.invokeLater(new Runnable() { //Use EDT to build swing components    
       @Override 
       public void run() { 
        jPanel = new JPanel(); 

        jPanel.setBackground(Color.WHITE); 
        jPanel.setLayout(new GridLayout(2, 1)); 
        jPanel.add(new JPanel()); 

        JLabel nonOpaquePanel = new JLabel("Bla"); 
        nonOpaquePanel.setPreferredSize(new Dimension(5000, 5000)); 
        nonOpaquePanel.setOpaque(false); 
        JScrollPane scrollPane = new JScrollPane(nonOpaquePanel); 
        scrollPane.setOpaque(false); 
        scrollPane.getViewport().setOpaque(false); //Black background -> Bug? 
        jPanel.add(scrollPane); 
       } 
      }); 

      Thread.sleep(1000); //terrible way to wait for the EDT, I know 
      swingNode.setContent(jPanel); //Seems to interfere with painting of menu    
      stage.show(); 

      SwingUtilities.invokeLater(new Runnable() { //I am pretty sure this isn't necessary, but whatever      
       @Override 
       public void run() { 
        jPanel.repaint();  
       } 
      }); 
     } 
    } 

    /** 
    * Main method launching the application. 
    */ 
    public static void main(String[] args) { 
     launch(args); 
    } 
} 

Answer 1

deve essere stato un bug in JavaFX, questo esempio, sta lavorando bene ora.

Answer 2

Provare a inserire il codice di aggiornamento in questo quando si effettua una chiamata di aggiornamento. Questo codice mi ha aiutato prima su altri progetti.

Platform.runLater(new Runnable() { 
      @Override 
      public void run() { 
       // Update the text node with calculated results 
      } 
     }); 

Source

Answer 3

È possibile utilizzare -Djavafx.embed.singleThread=true, in modo da non dover rendere l'evento di dispacciamento per conto proprio.

JavaFx APIDesign