java - PopupMenu 内的 JPanel

Question

有没有办法在 PopupMenu 中渲染像 JPanel 一样的图形(使用 TrayIcon)？我知道使用 JPopupMenu 是可能的，但我不喜欢如果我单击弹出窗口外部，弹出窗口不会关闭(并且图标不会像 PopupMenu 那样突出显示)。

我尝试使用 JPopupMenu 执行的操作示例:

    if( SystemTray.isSupported() ) {
        // Get the SystemTray instance
        SystemTray tray = SystemTray.getSystemTray();

        // Load icon
        Image image = new ImageIcon(this.getClass().getResource("delete.png")).getImage();

        final JPopupMenu popup = new JPopupMenu();
        popup.add( new JMenuItem("Test") );

        JPanel p1 = new JPanel();
        p1.setBackground( Color.red );
        p1.setPreferredSize( new Dimension(200, 300) );
        popup.add( p1 );

        JTrayIcon trayIcon = new JTrayIcon( image );
        trayIcon.setJPopupMenu( popup );

        trayIcon.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseReleased(MouseEvent e) {
                popup.setLocation(e.getX(), e.getY());
                popup.setInvoker(popup);
                popup.setVisible(true);
            }
        });

        try {
            tray.add( trayIcon );
        } catch (Exception e) {
            JOptionPane.showMessageDialog( null, "Could not add tray icon." );
        }
    }

Answer 1

Is there a way to render graphics like JPanel in a PopupMenu? I know it's possible by using JPopupMenu but I do not like that the popup doesn't close if I click outside of it (and the icon does not get highlighted as with PopupMenu).

• 我只会直接谈论 Java-2D 到弹出容器，确保将 JPanel 与自定义绘画和 JButtons 一起放置没有问题，由 GridLayout

放置

• 是的，有几种方法，the best describtion around by @Kirill Grouchnikov

• 您可以决定是否创建

  1) 为每个 JPopupMenu/JMenu 绘制一个新的油漆，

  2) 放入UIManager(然后对当前JVM中的所有对象有效)