Swing 和 Javafx 之间的互操作性：来自嵌入式 Z198B44A40AA77F2256886010C7526 应用程序的关闭父级 Javafx 阶段
[英]Interoperability between Swing and Javafx : Closing parent Javafx stage from embedded Swing application
问题描述
I have embedded a swing application in a JavaFx application using SwingNode as shown below:
我使用 SwingNode 在 JavaFx 应用程序中嵌入了 swing 应用程序，如下所示：
final SwingNode swingNode = new SwingNode();
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
swingNode.setContent(new ButtonHtml());
}
});
The ButtonHtml is a swing application as shown below: ButtonHtml 是一个 swing 应用程序，如下所示：
public class ButtonHtml extends JPanel
implements ActionListener {
protected JButton b1, b3;
public ButtonHtml() {
ImageIcon buttonIcon = createImageIcon("images/down.gif");
b1 = new JButton("<html><center><b><u>D</u>isable</b><br>"
+ "<font color=#ffffdd>FX button</font>",
buttonIcon);
Font font = b1.getFont().deriveFont(Font.PLAIN);
b1.setFont(font);
b1.setVerticalTextPosition(AbstractButton.CENTER);
b1.setHorizontalTextPosition(AbstractButton.LEADING); //aka LEFT, for left-to-right locales
b1.setMnemonic(KeyEvent.VK_D);
b1.setActionCommand("disable");
b3 = new JButton("<html><center><b><u>E</u>nable</b><br>"
+ "<font color=#ffffdd>FX button</font>",
buttonIcon);
b3.setFont(font);
//Use the default text position of CENTER, TRAILING (RIGHT).
b3.setMnemonic(KeyEvent.VK_E);
b3.setActionCommand("enable");
b3.setEnabled(false);
//Listen for actions on buttons 1 and 3.
b1.addActionListener(this);
b3.addActionListener(this);
b1.setToolTipText("Click this button to disable the FX button.");
b3.setToolTipText("Click this button to enable the FX button.");
//Add Components to this container, using the default FlowLayout.
add(b1);
add(b3);
}
@Override
public void actionPerformed(ActionEvent e) {
if ("disable".equals(e.getActionCommand())) {
Platform.runLater(new Runnable() {
@Override
public void run() {
//close the parent javafx window
}
});
b1.setEnabled(false);
b3.setEnabled(true);
} else {
Platform.runLater(new Runnable() {
@Override
public void run() {
//do something
}
});
b1.setEnabled(true);
b3.setEnabled(false);
}
}
/** Returns an ImageIcon, or null if the path was invalid.
* @param path
* @return */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = ButtonHtml.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
}
Now in my javafx application, I have embedded the SwingNode in a pane and created a scene and doing stage.show to open the javafx window:现在在我的 javafx 应用程序中，我将 SwingNode 嵌入到窗格中并创建了一个场景并执行 stage.show 以打开 javafx window：
BorderPane pane = new BorderPane();
Image fxButtonIcon = new Image(getClass().getResourceAsStream("images/middle.gif"));
fxbutton = new Button("FX button", new ImageView(fxButtonIcon));
fxbutton.setTooltip(new Tooltip("This middle button does nothing when you click it."));
fxbutton.setStyle("-fx-font: 22 arial; -fx-base: #cce6ff;");
pane.setTop(swingNode);
pane.setCenter(fxbutton);
Scene scene = new Scene(pane, 300, 100);
stage.setScene(scene);
stage.setTitle("Enable FX Button");
stage.show();
I need to know, how can we trigger the hide/dispose/close of the parent Javafx window from the embedded Swing application.我需要知道，我们如何从嵌入式 Swing 应用程序触发父 Javafx window 的隐藏/处置/关闭。 Basically I want on click on a button (in above example say button b1), and close the javafx window.基本上我想点击一个按钮（在上面的例子中说按钮 b1），然后关闭 javafx window。 Please note that the swing application and javafx application are independent.请注意，swing 应用程序和 javafx 应用程序是独立的。
1 个解决方案
解决方案1
1 2020-05-28 16:04:56
A fairly clean approach is just to define a field in your ButtonHtml class representing what to do when b1 is pressed.一个相当干净的方法是在ButtonHtml class 中定义一个字段，表示按下b1时要做什么。
Incorporating that, and modernizing the action listener implementations, you can do:结合这一点，并对动作侦听器实现进行现代化改造，您可以执行以下操作：
public class ButtonHtml extends JPanel {
protected JButton b1, b3;
private Runnable onCloseRequested = () -> {} ;
public void setOnCloseRequested(Runnable onCloseRequested) {
this.onCloseRequested = onCloseRequested ;
}
public Runnable getOnCloseRequested() {
return onCloseRequested ;
}
public ButtonHtml() {
ImageIcon buttonIcon = createImageIcon("images/down.gif");
b1 = new JButton("<html><center><b><u>D</u>isable</b><br>"
+ "<font color=#ffffdd>FX button</font>",
buttonIcon);
Font font = b1.getFont().deriveFont(Font.PLAIN);
b1.setFont(font);
b1.setVerticalTextPosition(AbstractButton.CENTER);
b1.setHorizontalTextPosition(AbstractButton.LEADING); //aka LEFT, for left-to-right locales
b1.setMnemonic(KeyEvent.VK_D);
b1.setActionCommand("disable");
b3 = new JButton("<html><center><b><u>E</u>nable</b><br>"
+ "<font color=#ffffdd>FX button</font>",
buttonIcon);
b3.setFont(font);
//Use the default text position of CENTER, TRAILING (RIGHT).
b3.setMnemonic(KeyEvent.VK_E);
b3.setActionCommand("enable");
b3.setEnabled(false);
//Listen for actions on buttons 1 and 3.
b1.addActionListener(e -> {
Platform.runLater(onCloseRequested);
b1.setEnabled(false);
b3.setEnabled(true);
});
b3.addActionListener(e -> { /* ... */ });
b1.setToolTipText("Click this button to disable the FX button.");
b3.setToolTipText("Click this button to enable the FX button.");
//Add Components to this container, using the default FlowLayout.
add(b1);
add(b3);
}
/** Returns an ImageIcon, or null if the path was invalid.
* @param path
* @return */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = ButtonHtml.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
}
And then you can just do然后你可以做
final SwingNode swingNode = new SwingNode();
SwingUtilities.invokeLater(() -> {
ButtonHtml buttonHtml = new ButtonHtml();
buttonHtml.setOnCloseRequested(() -> swingNode.getScene().getWindow().hide());
swingNode.setContent(buttonHtml);
});
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