Resizing Rectangle

Hi All,

Iam writing a program implementing drag and drop. I have dragged and droppped a rectangle on to the JPanel now iam able to move the rectangle all over the panel.

Now all I need is to resize the rectangle from any of its end points and if possible insert an editable text area inside the rectangle. If anyone could help me with this i would be thankful.

This is my code.

public class Tester extends JFrame
{
myCanvas canvas;
private Image image;
int x;
int y;
int width;
int height;
Cursor prevCursor = null;
public Tester()
{
super("Tester");
ImageIcon image1 = new ImageIcon("button1.gif");
button button1 = new button(image1);
ImageIcon image2 = new ImageIcon("button2.gif");
button button2 = new button(image2);
button2.setTransferHandler(new TransferHandler("text"));
JToolBar bar = new JToolBar();
bar.add(button1);
bar.add(button2);
canvas = new myCanvas();
canvas.reshape(0,0,500,500);
MouseListener listener = new DragMouseAdapter();
button2.addMouseListener(listener);
Panel pane = new Panel();
BorderLayout bord = new BorderLayout();
pane.setLayout(bord);
pane.add("North", bar);
pane.add("Center",canvas);
pane.setVisible(true);
getContentPane().add(pane);
image = getToolkit().getImage("images.jpg");
MediaTracker tracker = new MediaTracker(this);
tracker.addImage(image, 0);
try
{
      tracker.waitForID(0);
}
catch(InterruptedException e)
{
      System.out.println("Exception Occured" + e);
}
x = 300;
y = 100;
width = image.getWidth(this);
height = image.getHeight(this);
prevCursor = getCursor();
}                        
public void updateImages()
{
canvas.repaint();
}
public class button extends JButton implements  DragSourceListener, DragGestureListener  
{
DragSource dragSource = null;
public button(ImageIcon image1)
      {
            super(image1);
            dragSource = new DragSource();
            dragSource.createDefaultDragGestureRecognizer( this, DnDConstants.ACTION_MOVE, this);
      }
public void dragDropEnd (DragSourceDropEvent event)
      {  
      }
public void dragEnter (DropTargetDragEvent event)
      {
            System.out.println( "DRAG ENTER");
            event.acceptDrag (DnDConstants.ACTION_MOVE);
      }
public void dragOver (DropTargetDragEvent event)
      {
            System.out.println( "DRAG OVER");
      }
public void dropActionChanged ( DropTargetDragEvent event )
      {
      }
public void dragGestureRecognized( DragGestureEvent event)
      {
      }
public void dragEnter (DragSourceDragEvent event)
      {
            System.out.println( " DRAG ENTER");
      }
public void dragExit (DragSourceEvent event)
      {
            System.out.println( "DRAG EXIT");
      }
public void dragOver (DragSourceDragEvent event)
      {
            System.out.println( "DRAG EXIT");
      }
public void dropActionChanged ( DragSourceDragEvent event)
      {
            System.out.println( "DROP ACTION CHANGED");
      }
}
public class myCanvas extends JPanel implements  DropTargetListener,MouseListener,MouseMotionListener
{
DropTarget dropTarget = null;
HashMap objects = new HashMap();
public myCanvas()
{
      super(new BorderLayout());
      dropTarget = new DropTarget (this, this);
      addMouseMotionListener(this);
      addMouseListener(this);
}
public void dragDropEnd (DragSourceDropEvent event)
{  
System.out.println("Dropped");
}
public void dragEnter (DropTargetDragEvent event)
{                              
System.out.println( "DRAG ENTER");
event.acceptDrag (DnDConstants.ACTION_MOVE);
}
public void dragExit (DropTargetEvent event)
{
System.out.println( "DRAG EXIT");
}
public void dragOver (DropTargetDragEvent event)
{
System.out.println( "DRAG OVER");
}
public void drop (DropTargetDropEvent event)
{
System.out.println("DROPPED");  
try {
Point p = event.getLocation();
addElement(event.getSource(), p);
event.getDropTargetContext().dropComplete(true);
}
catch(Exception e)
{
e.printStackTrace(System.out);
}
}
public void dropActionChanged ( DropTargetDragEvent event )
{
}
public void dragGestureRecognized( DragGestureEvent event)
{
}
public void dragEnter (DragSourceDragEvent event)
{
System.out.println( " DRAG ENTER");
}
public void dragExit (DragSourceEvent event)
{
System.out.println( "DRAG EXIT");
}
public void dragOver (DragSourceDragEvent event)
{
System.out.println( "dragExit");
}
public void dropActionChanged ( DragSourceDragEvent event)
{
System.out.println( "DROP ACTION CHANGED");
}
public void addElement( Object o, Point p)
{
System.out.println("Trying to add to canvas ");
if(!objects.containsKey(p))
objects.put(p,o);
canvas.repaint();
}       
public void paint(Graphics g)
{
System.out.println(" Print called ");
super.paint(g);
g.drawRect(0,0,1020,650);
g.setColor ( Color.white );
g.fillRect (1,1,1021,651);
g.setColor ( Color.blue );
for(Iterator i=objects.keySet().iterator(); i.hasNext(); )
{
Point p = (Point)i.next();
g.drawRect((int)p.getX(),(int)p.getY(),45,45);
}
}
public void setImageX(int a)
{
x = a;
}
public void setImageY(int a)
{
y = a;
}
public void setImageHeight(int h)
{
height = h;
}
public void setImageWidth(int w)
{
width = w;
}
public int getImageX()
{
return x;
}
public int getImageY()
{
return y;
}
public int getImageHeight()
{
return height;
}
public int getImageWidth()
{
return width;
}
public void mouseDragged(MouseEvent evt)
{      
if(prevP == null)
{
      System.out.println("OutSide Image");
      return;
}      
Point newP = new Point(evt.getX(), evt.getY());                      
if(!objects.containsKey(newP))
{
      objects.put(newP, objects.get(prevP));
      objects.remove(prevP);
}
      prevP = newP;
      repaint();
      updateImages();
}
public void mouseMoved(MouseEvent evt)
{
if(evt.getX() > getImageX() && evt.getX() < (getImageX()+getImageWidth()))
if(evt.getY() > getImageY() && evt.getY() < (getImageY()+getImageHeight()))
{
      System.out.println("On The Image");
}
else
{
      setCursor(prevCursor);
}
}
public void mousePressed(MouseEvent evt)
{      
for(Iterator i=objects.keySet().iterator(); i.hasNext(); )
{
      Point p = (Point)i.next();
if(evt.getX() > p.getX() && evt.getX() < (p.getX()+getImageWidth()))
if(evt.getY() > p.getY() && evt.getY() < (p.getY()+getImageHeight()))
{
      prevP = p;
      return;
}
}
}
public void mouseReleased(MouseEvent evt)
{
prevP = null;
}
public void mouseClicked(MouseEvent evt)
{
}
public void mouseEntered(MouseEvent evt)
{
}
public void mouseExited(MouseEvent evt)
{
}
Point prevP = null;
}
private class DragMouseAdapter extends MouseAdapter
{
public void mousePressed(MouseEvent e)
{
JComponent c = (JComponent)e.getSource();
TransferHandler handler = c.getTransferHandler();
handler.exportAsDrag(c, e, TransferHandler.COPY);
}
}
private static void createAndShowGUI()
{
Tester frame = new Tester();
frame.pack();
frame.setVisible(true);
}
public static void main(String[] arguments)
{
javax.swing.SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}

Thanks in advance.