Firefox 'Open new tab' on JTabbedPane - swing

Question

I want to add a button to JTabbedPane's title bar (similar to the 'open new tab' ('+') button in Firefox)
I have tried to add to the glass pane of JTabbedPane's container. but since my tabbedpane contains within a JPanel seems it doesn't work for me.
Any suggestion will be a great help for me.
Thank you.

Answer 1

Instead of adding a button I have tried it in a different way and worked for me... I have added a JLabel (with '+') as a hidden tab and when user tries to select that tab i'll be adding a new tab.
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();
}
}