changekeymap.java

一个用java开发界面的程序集(jfc核心编程)

package JFCBook.Chapter9.jdk13;

import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;
import java.awt.event.*;

public class ChangeKeymap {
	public static void main(String[] args) {
		JFrame f = new JFrame("Keymap Modification");
		JTextField tf = new JTextField("Hello, world", 5);

		// Modify the Keymap
		Keymap map = JTextComponent.addKeymap("Modified map", tf.getKeymap());
		map.addActionForKeyStroke(KeyStroke.getKeyStroke("ctrl C"),
					new TextAction("Remapped ctrl C") {
						public void actionPerformed(ActionEvent evt) {
							JTextComponent comp = getTextComponent(evt);
							if (comp != null) {
								comp.selectAll();
							}
						}
					});
		tf.setKeymap(map);

		f.getContentPane().setLayout(new FlowLayout());
		f.getContentPane().add(tf);
 
		f.pack();
		f.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent evt) {
				System.exit(0);
			}
		});
		f.setVisible(true);		
	}
}