// An example of radio button menu items in action.
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JTextPane;
import javax.swing.JToolBar;
import javax.swing.KeyStroke;
import javax.swing.border.BevelBorder;
public class RadioButtonMenuItemExample extends JPanel {
public JTextPane pane;
public JMenuBar menuBar;
public JToolBar toolBar;
public RadioButtonMenuItemExample() {
menuBar = new JMenuBar();
JMenu justifyMenu = new JMenu("Justify");
ActionListener actionPrinter = new ActionListener() {
public void actionPerformed(ActionEvent e) {
try {
pane.getStyledDocument().insertString(0,"Action [" + e.getActionCommand()+ "] performed!\n", null);
} catch (Exception ex) {
ex.printStackTrace();
}
}
};
JRadioButtonMenuItem leftJustify = new JRadioButtonMenuItem("Left",new ImageIcon("1.gif"));
leftJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
leftJustify.setAccelerator(KeyStroke.getKeyStroke('L', Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
leftJustify.addActionListener(actionPrinter);
JRadioButtonMenuItem rightJustify = new JRadioButtonMenuItem("Right",new ImageIcon("2.gif"));
rightJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
rightJustify.setAccelerator(KeyStroke.getKeyStroke('R', Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
rightJustify.addActionListener(actionPrinter);
JRadioButtonMenuItem centerJustify = new JRadioButtonMenuItem("Center",new ImageIcon("3.gif"));
centerJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
centerJustify.setAccelerator(KeyStroke.getKeyStroke('M', Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
centerJustify.addActionListener(actionPrinter);
JRadioButtonMenuItem fullJustify = new JRadioButtonMenuItem("Full",new ImageIcon("4.gif"));
fullJustify.setHorizontalTextPosition(JMenuItem.RIGHT);
fullJustify.setAccelerator(KeyStroke.getKeyStroke('F', Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));
fullJustify.addActionListener(actionPrinter);
ButtonGroup group = new ButtonGroup();
group.add(leftJustify);
group.add(rightJustify);
group.add(centerJustify);
group.add(fullJustify);
justifyMenu.add(leftJustify);
justifyMenu.add(rightJustify);
justifyMenu.add(centerJustify);
justifyMenu.add(fullJustify);
menuBar.add(justifyMenu);
menuBar.setBorder(new BevelBorder(BevelBorder.RAISED));
}
public static void main(String s[]) {
RadioButtonMenuItemExample example = new RadioButtonMenuItemExample();
example.pane = new JTextPane();
example.pane.setPreferredSize(new Dimension(250, 250));
example.pane.setBorder(new BevelBorder(BevelBorder.LOWERED));
JFrame frame = new JFrame("Menu Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setJMenuBar(example.menuBar);
frame.getContentPane().add(example.pane, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}