How to change this code to drag and drop image/icon into it??

Question

Dear Friends:
I have following code is for drag/drop label, But I need to change to drag and drop image/icon into it.
[1]. code 1:
package swing.dnd;
import java.awt.*;
import javax.swing.*;
public class TestDragComponent extends JFrame {
     public TestDragComponent() {
          super("Test");
          Container c = getContentPane();
          c.setLayout(new GridLayout(1,2));
          c.add(new MoveableComponentsContainer());
          c.add(new MoveableComponentsContainer());
          pack();
          setVisible(true);
     public static void main(String[] args) {
          try {
               UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
          catch (Exception ex) {
               System.out.println(ex);
          new TestDragComponent();
}[2]. Code 2:
package swing.dnd;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.awt.dnd.*;
import java.awt.datatransfer.*;
import java.awt.image.*;
import java.awt.dnd.DragSource;
import java.awt.dnd.DropTarget;
public class MoveableComponentsContainer extends JPanel {     
     public DragSource dragSource;
     public DropTarget dropTarget;
     private static BufferedImage buffImage = null; //buff image
     private static Point cursorPoint = new Point();
     public MoveableComponentsContainer() {
          setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED, Color.white, Color.gray));
          setLayout(null);
          dragSource = new DragSource();
          ComponentDragSourceListener tdsl = new ComponentDragSourceListener();
          dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY_OR_MOVE, new ComponentDragGestureListener(tdsl));
          ComponentDropTargetListener tdtl = new ComponentDropTargetListener();
          dropTarget = new DropTarget(this, DnDConstants.ACTION_MOVE, tdtl);
          setPreferredSize(new Dimension(400,400));
          addMoveableComponents();
     private void addMoveableComponents() {
          MoveableLabel lab = new MoveableLabel("label 1");
          add(lab);
          lab.setLocation(10,10);
          lab = new MoveableLabel("label 2");
          add(lab);
          lab.setLocation(40,40);
          lab = new MoveableLabel("label 3");
          add(lab);
          lab.setLocation(70,70);
          lab = new MoveableLabel("label 4");
          add(lab);
          lab.setLocation(100,100);
     final class ComponentDragSourceListener implements DragSourceListener {
          public void dragDropEnd(DragSourceDropEvent dsde) {
          public void dragEnter(DragSourceDragEvent dsde)  {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dragOver(DragSourceDragEvent dsde) {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dropActionChanged(DragSourceDragEvent dsde)  {
               int action = dsde.getDropAction();
               if (action == DnDConstants.ACTION_MOVE) {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveDrop);
               else {
                    dsde.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
          public void dragExit(DragSourceEvent dse) {
             dse.getDragSourceContext().setCursor(DragSource.DefaultMoveNoDrop);
     final class ComponentDragGestureListener implements DragGestureListener {
          ComponentDragSourceListener tdsl;
          public ComponentDragGestureListener(ComponentDragSourceListener tdsl) {
               this.tdsl = tdsl;
          public void dragGestureRecognized(DragGestureEvent dge) {
               Component comp = getComponentAt(dge.getDragOrigin());
               if (comp != null && comp != MoveableComponentsContainer.this) {
                    cursorPoint.setLocation(SwingUtilities.convertPoint(MoveableComponentsContainer.this, dge.getDragOrigin(), comp));
                    buffImage = new BufferedImage(comp.getWidth(), comp.getHeight(), java.awt.image.BufferedImage.TYPE_INT_ARGB_PRE);//buffered image reference passing the label's ht and width
                    Graphics2D graphics = buffImage.createGraphics();//creating the graphics for buffered image
                    graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));     //Sets the Composite for the Graphics2D context
                    boolean opacity = ((JComponent)comp).isOpaque();
                    if (opacity) {
                         ((JComponent)comp).setOpaque(false);                         
                    comp.paint(graphics); //painting the graphics to label
                    if (opacity) {
                         ((JComponent)comp).setOpaque(true);                         
                    graphics.dispose();
                    remove(comp);
                    dragSource.startDrag(dge, DragSource.DefaultMoveDrop , buffImage, cursorPoint, new TransferableComponent(comp), tdsl);     
                    revalidate();
                    repaint();
     final class ComponentDropTargetListener implements DropTargetListener {
          private Rectangle rect2D = new Rectangle();
          Insets insets;
          public void dragEnter(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void dragExit(DropTargetEvent dte) {
               paintImmediately(rect2D.getBounds());
          public void dragOver(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void dropActionChanged(DropTargetDragEvent dtde) {
               Point pt = dtde.getLocation();
               paintImmediately(rect2D.getBounds());
               rect2D.setRect((int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),buffImage.getWidth(),buffImage.getHeight());
               ((Graphics2D) getGraphics()).drawImage(buffImage,(int) (pt.getX()-cursorPoint.getX()),(int) (pt.getY()-cursorPoint.getY()),MoveableComponentsContainer.this);
               dtde.acceptDrag(dtde.getDropAction());
          public void drop(DropTargetDropEvent dtde) {
               try {
                    paintImmediately(rect2D.getBounds());
                    int action = dtde.getDropAction();
                    Transferable transferable = dtde.getTransferable();
                    if (transferable.isDataFlavorSupported(TransferableComponent.COMPONENT_FLAVOR)) {
                         Component comp = (Component) transferable.getTransferData(TransferableComponent.COMPONENT_FLAVOR);
                         Point location = dtde.getLocation();
                         if (comp == null) {
                              dtde.rejectDrop();
                              dtde.dropComplete(false);
                              revalidate();
                              repaint();
                              return;                              
                         else {                         
                              add(comp, 0);
                              comp.setLocation((int)(location.getX()-cursorPoint.getX()),(int)(location.getY()-cursorPoint.getY()));
                              dtde.dropComplete(true);
                              revalidate();
                              repaint();
                              return;
                    else {
                         dtde.rejectDrop();
                         dtde.dropComplete(false);
                         return;               
               catch (Exception e) {     
                    System.out.println(e);
                    dtde.rejectDrop();
                    dtde.dropComplete(false);
}Thanks so much for any help.
Reagrds
sunny

Answer 1

Well, I don't really understand the DnD interface so maybe my chess board example will be easier to understand and modify:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=518707
Basically what you would need to do is:
a) on a mousePressed you would need to create a new JLabel with the icon from the clicked label and add the label to the glass pane
b) mouseDragged code would be the same you just repaint the label as it is moved
c) on a mouseReleased, you would need to check that the label is now positioned over your "drop panel" and then add the label to the panel using the panels coordinates not the glass pane coordinates.