DnD and MouseMotionListener

Question

Hi,
I am trying to move one panel(1) inside another one -
panel(2) with DnD. I think that everything works good, but only one problem. Can't change positioning (x,y) of panel(1) inside the panel(2). I am trying to use MouseMotionListener-mouseDragged(), but no help.
May be I am doing something wrong. How to coonect action of MouseMotionListener with DnD.
Here is my code.
class DNDPanel extends JPanel implements
DropTargetListener, MouseMotionListener {
int x;
int y;
public DNDPanel() {
super();
setBackground(Color.black);
setLayout(null);
add(new DraggablePanel()).setLocation(x, y);
addMouseMotionListener(this);
DropTarget dt = new DropTarget(this, this);
public void mouseDragged(MouseEvent e) {
x = e.getX();
y = e.getY(); // I think that problem hides somewhere here.
public void drop(DropTargetDropEvent dtde) {
if(isValidDragDrop(dtde.getDropAction(), dtde.getCurrentDataFlavors())) {
dtde.acceptDrop(dtde.getDropAction());
try {
Transferable xfer = dtde.getTransferable();
Object obj = xfer.getTransferData(MyFlavors.draggablePanelFlavor);
if(obj instanceof JComponent) {
add(new DraggablePanel()).setLocation(x, y);
// or here???
revalidate();
catch(Exception exc) {
System.err.println(exc);
exc.printStackTrace();
dtde.dropComplete(false);
else {dtde.rejectDrop();}
class DraggablePanel extends JPanel implements DragSourceListener,
DragGestureListener,
Transferable {
public DraggablePanel() {
super();
setBackground(Color.red);
setPreferredSize(new Dimension(100,100));
setBounds(0,0,100,100);
JButton button = new JButton("Beep");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
Toolkit.getDefaultToolkit().beep();
add(button);
DragSource ds = DragSource.getDefaultDragSource();
DragGestureRecognizer dgr = ds.createDefaultDragGestureRecognizer(
this, DnDConstants.ACTION_COPY_OR_MOVE, this);
Thank you. I really need HELP!
DM.

Answer 1

hi,
I dont completely understand your question, but if you are trying to get the coordinates of the component with respect to the parent panel, try methods from SwingUtilities, like converPoint,.....
Am not sure if that completely answers your question, but I had a similiar problem, ad then used this. Hope this helps!
Sri.