نحوه حرکت دادن undecorated frame

[yasamanbanoo]

سلام؛

من یه فرم دارم با کد زیر.
با چه کدی میشه مثه فریم های معمولی اونو حرکت داد؟

import java.awt.Color;

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.border.LineBorder;

public class UndecoratedFrame extends JFrame {

private LineBorder border = new LineBorder(Color.BLUE,2);
private JMenuBar menuBar = new JMenuBar();
private JMenu menu = new JMenu("File");
private JMenuItem item = new JMenuItem("Nothing");

public UndecoratedFrame() {
menu.add(item);
menuBar.add(menu);
this.setJMenuBar(menuBar);
this.setUndecorated(true);
this.getRootPane().setBorder(border);
this.setSize(400,340);
this.setVisible(true);
}

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


ممنون.

[java.source.ir]

import java.awt.BorderLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;

public class Main {
private static Point point = new Point();

public static void main(String[] args) {
final JFrame frame = new JFrame();
frame.setUndecorated(true);
JButton button = new JButton("Close Me");
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});

frame.addMouseListener(new MouseAdapter() {
public void mousePressed(MouseEvent e) {
point.x = e.getX();
point.y = e.getY();
}
});
frame.addMouseMotionListener(new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
Point p = frame.getLocation();
frame.setLocation(p.x + e.getX() - point.x, p.y + e.getY() - point.y);
}
});

frame.setSize(300, 300);
frame.setLocation(200, 200);
frame.setLayout(new BorderLayout());

frame.getContentPane().add(button, BorderLayout.NORTH);
frame.getContentPane().add(new JLabel("Drag Me", JLabel.CENTER), BorderLayout.CENTER);
frame.setVisible(true);
}
}