Mac OS中的Java弹出菜单

Question

当用户右键单击我的JTable时,我正试图获得JPopUpMenu节目.在我的扩展JTable的类中,我调用以下代码:

addMouseListener(new MouseAdapter()
    {
        @Override
        public void mouseReleased(MouseEvent e)
        {
            rowClicked = rowAtPoint(e.getPoint());
            colClicked = columnAtPoint(e.getPoint());
            if (e.isPopupTrigger())
            {
                popUpMenu.show(e.getComponent(), e.getX(), e.getY());
            }
        }

        @Override
        public void mouseClicked(MouseEvent e)
        {
            rowClicked = rowAtPoint(e.getPoint());
            colClicked = columnAtPoint(e.getPoint());

            if(e.isPopupTrigger())
            {
                popUpMenu.show(e.getComponent(), e.getX(), e.getY());
            }
        }
    });

每当我右键单击跟踪板,使用鼠标或使用ctrl +右键单击时,if(e.isPopupTrigger())永远不会评估为true,并且菜单永远不会显示.我在那里有断点来验证.

我在网上做了一些研究,似乎这个解决方案应该有效.由于右键单击取决于平台,因此使用isPopupTrigger()应该是最佳选择.

因为我在Mac上有什么特别的东西吗？

Answer 1

这个简单的例子对我有用,也许它可以帮助你找到你的问题.我在使用Java 7的Mac上.

public static void main(String[] args)
{
    JFrame frame = new JFrame();
    JPanel panel = new JPanel();

    String columnNames[] = { "Column 1", "Column 2", "Column 3" };

    String dataValues[][] = { { "12", "234", "67" }, { "-123", "43", "853" }, { "93", "89.2", "109" }, { "279", "9033", "3092" } };
    JTable table = new JTable(dataValues, columnNames);

    panel.add(table);

    final JPopupMenu menu = new JPopupMenu();
    JMenuItem item = new JMenuItem("item");
    menu.add(item);
    table.setComponentPopupMenu(menu);

    table.addMouseListener(new MouseAdapter()
    {
        @Override
        public void mouseReleased(MouseEvent e)
        {
            if (e.isPopupTrigger())
            {
                menu.show(e.getComponent(), e.getX(), e.getY());
            }
        }

        @Override
        public void mouseClicked(MouseEvent e)
        {
            if (e.isPopupTrigger())
            {
                menu.show(e.getComponent(), e.getX(), e.getY());
            }
        }
    });

    frame.setContentPane(panel);
    frame.pack();
    frame.setVisible(true);
}