Dragging GUI flickering

Question

Hi,
I have been making a custom frame class for my applications, and am having some problems with dragging the window. At first there was the issue of my fan going wild if i dragged the window fast across the screen, but that seems to be solved by preventing a complete repaint of the window while dragging. There is still the issue of the frame jumping around while being dragged, though eventually reaching the right location. I believe there is some mistake in the new location calculation but I couldn't manage to do it any simpler. I am running this using sun's jre 1.5_08 on ubuntu, and I don't have that same problem when using a decorated JFrame.
============
myFrame.java
============
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;
import java.awt.Graphics;
import java.awt.Color;
public class myFrame extends Frame implements WindowListener, MouseListener, MouseMotionListener {
     String title;
     int width, height;
     int x, y; // mouse pointer coordinates
     boolean beingDragged; // set to prevent complete redrawing while dragging
     public myFrame(String title, int width, int height) {
          super(title);
          this.title = title;
          this.width = width;
          this.height = height;
          addWindowListener(this);
          addMouseListener(this);
          addMouseMotionListener(this);
          setLayout(null);
          setUndecorated(true);
          setSize(width, height);
          setResizable(false);
          setLocationRelativeTo(null);
     public void paint(Graphics g) {
          g.setColor(new Color(0,0,0));
          // draw outer window border
          g.drawRect(0, 0, width - 1, height - 1);
          if (beingDragged) {
               return;
          // draw the rest of the GUI
          g.setColor(new Color(255,255,255));
          g.fillRect(1, 1, width - 2, height - 2);
     public void windowActivated(WindowEvent e) {}
     public void windowClosed(WindowEvent e) {
          System.exit(0);
     public void windowClosing(WindowEvent e) {
          System.exit(0);
     public void windowDeactivated(WindowEvent e) {}
     public void windowDeiconified(WindowEvent e) {}
     public void windowIconified(WindowEvent e) {}
     public void windowOpened(WindowEvent e) {}
     public void mousePressed(MouseEvent e) {
          x = e.getX();
          y = e.getY();
     public void mouseClicked(MouseEvent e) {
          // perform functions depending on location clicked
     public void mouseDragged(MouseEvent e) {
          beingDragged = true; // prevent complete repaint
          repaint();
          setLocation(getLocation().x + e.getX() - x, getLocation().y + e.getY() - y);
     public void mouseReleased(MouseEvent e) {
          beingDragged = false; // allow complete repaint
          repaint();
     public void mouseEntered(MouseEvent e) {}
     public void mouseExited(MouseEvent e) {}
     public void mouseMoved(MouseEvent e) {}
===============
myFrameTest.java
===============
public class myFrameTest {
     public static void main(String[] args) {
          myFrame testFrame = new myFrame("Testing myFrame", 400, 400);
          testFrame.setVisible(true);
}

Answer 1

So i cannot do anything without the mustang release?...And it is not available for development yet...isn't it some workaround.This application was working fine when it was only Swing.Then i needed to embedd the JDesktopPane into java.awt.Frame so i can integrate it as a Eclipse Plugin...then the flickering began.I was able to stop the flickering in the JDesktopFrame by migrating from jre1.4 to jre1.5 but the flickering in the JInternalFrame added to the DesktoPane is still there.