/* * TabComponentDemo.java requires one additional file: * ButtonTabComponent.java */ import javax.swing.*; import java.awt.*; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import java.awt.event.InputEvent; import java.awt.event.KeyEvent; /* * Creating and using TabComponentsDemo example */ public class TabComponentsDemo extends JFrame { private final int tabNumber = 5; private final JTabbedPane pane = new JTabbedPane(); private JMenuItem tabComponentsItem; private JMenuItem scrollLayoutItem; public static void main(String[] args) { //Turn off metal's use of bold fonts UIManager.put("swing.boldMetal", Boolean.FALSE); //Schedule a job for the event dispatch thread: //creating and showing this application's GUI. SwingUtilities.invokeLater(new Runnable(){ public void run(){ new TabComponentsDemo("TabComponentsDemo").runTest(); } }); } public TabComponentsDemo(String title) { super(title); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); initMenu(); add(pane); } public void runTest() { pane.removeAll(); for (int i = 0; i < tabNumber; i++) { String title = "Tab " + i; pane.add(title, new JLabel(title)); initTabComponent(i); } tabComponentsItem.setSelected(true); pane.setTabLayoutPolicy(JTabbedPane.WRAP_TAB_LAYOUT); scrollLayoutItem.setSelected(false); setSize(new Dimension(400, 200)); setLocationRelativeTo(null); setVisible(true); } private void initTabComponent(int i) { pane.setTabComponentAt(i, new ButtonTabComponent("TabComponent " + i, pane)); } //Setting menu private void initMenu() { JMenuBar menuBar = new JMenuBar(); //create Options menu tabComponentsItem = new JCheckBoxMenuItem("Use TabComponents", true); tabComponentsItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_T, InputEvent.ALT_MASK)); tabComponentsItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { for (int i = 0; i < pane.getTabCount(); i++) { if (tabComponentsItem.isSelected()) { initTabComponent(i); } else { pane.setTabComponentAt(i, null); } } } }); scrollLayoutItem = new JCheckBoxMenuItem("Set ScrollLayout"); scrollLayoutItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.ALT_MASK)); scrollLayoutItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if (pane.getTabLayoutPolicy() == JTabbedPane.WRAP_TAB_LAYOUT) { pane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); } else { pane.setTabLayoutPolicy(JTabbedPane.WRAP_TAB_LAYOUT); } } }); JMenuItem resetItem = new JMenuItem("Reset JTabbedPane"); resetItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, InputEvent.ALT_MASK)); resetItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { runTest(); } }); JMenu optionsMenu = new JMenu("Options"); optionsMenu.add(tabComponentsItem); optionsMenu.add(scrollLayoutItem); optionsMenu.add(resetItem); menuBar.add(optionsMenu); setJMenuBar(menuBar); } }