Firefox在JTabbedPane上打开"新标签"

Question

我想在JTabbedPane的标题栏上添加一个按钮(类似于Firefox中的'打开新标签'('+')按钮)我试图添加到JTabbedPane容器的玻璃窗格中.但由于我的tabbedpane包含在JPanel中似乎它对我不起作用.任何建议对我都有很大的帮助.谢谢.

Answer 1

我没有添加按钮,而是以不同的方式尝试了它并为我工作...我添加了一个JLabel(带有'+')作为隐藏选项卡,当用户尝试选择该选项卡时,我将添加一个新的标签.

public class AddTabButtonDemo extends JFrame{

private JTabbedPane tabbedPane = new JTabbedPane();

public AddTabButtonDemo() {
    JLabel tab1Label = new JLabel("tab1");
    JPanel tab1 = new JPanel();
    tab1.add(tab1Label);
    tabbedPane.addTab("tab1", tab1);
    tabbedPane.addTab("+", new JLabel());
    tabbedPane.addMouseListener(new MouseAdapter() {
        @Override
        public void mouseClicked(MouseEvent e) {
            if (tabbedPane.getSelectedComponent() instanceof JLabel) {
                int count = tabbedPane.getTabCount();
                JLabel newTabLabel = new JLabel("tab" + count);
                JPanel newTab = new JPanel();
                newTab.add(newTabLabel);
                tabbedPane.add(newTab, count - 1);
                tabbedPane.setTitleAt(count - 1, "tab" + count);
                tabbedPane.setSelectedComponent(newTab);
            }
        }
    });
    this.add(tabbedPane, BorderLayout.CENTER);

    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.pack();
    this.setMinimumSize(new Dimension(300, 300));
    this.setVisible(true);

}

public static void main(String[] args) {
    new AddTabButtonDemo();
}

}