JavaFX 8 swing兼容性

Question

我目前正在评估是否可以使用SwingNode将当前的Swing应用程序转换为JavaFX 8，然后将所有内容逐渐更改为JavaFX组件。我偶然发现了两个问题，这可能是JavaFX 8中存在的错误，但我无法确定。

1. 添加内容到SwingNode JavaFX的菜单不涂 正确（大部分时间），导致黑条后

2. 制作JScrollBars非不透明似乎并没有工作

   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

编辑： 我编辑米例如使用EDT创建Swing组件。这并没有改变任何事情。或者我做错了什么？

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

必须已在JavaFX的一个bug，这个非常一例进行工作的罚款。

Answer 2

尝试在更新呼叫中包装更新代码。此代码在其他项目之前帮助过我。

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

Source

Answer 3

您可以使用-Djavafx.embed.singleThread=true，所以你不要有使事件分派你自己。

JavaFx APIDesign