Adding a JLabel to JLayeredPane from event listener not dragging.

Question

Ok, So for some reason When I add components to a JLayeredPane in its constructor:

JLabel label = new JLabel();

label.setSize(100,100); label.setText("This works"); add(label); It works perfectly fine, but If a add it later in the JLayeredPane's parent EDT it doesnt let me move the objects around but they let me see the objects.

Adding from EDT:

JLabel label = new JLabel();
label.setToolTipText(url.getHost());
label.setIcon(icon);
label.setBorder(new LineBorder(null));
label.setSize(icon.getIconWidth(), icon.getIconHeight());

dressFrame.layeredPane.add(label, JLayeredPane.DRAG_LAYER);

Dragging method:

Component c = findComponentAt(e.getX(), e.getY());
            if (c instanceof JLayeredPane) {
                    pieceSelected = false;
                    return;
            }

            Point parentLocation = c.getLocation();
            xAdjustment = parentLocation.x - e.getX();
            yAdjustment = parentLocation.y - e.getY();

            movingPiece = c;
            movingPiece.setLocation(e.getX() + xAdjustment, e.getY() + yAdjustment);
            pieceSelected = true;

http://xslayer.com/upload/gui.png

Answer 1

It isn't clear from your code snippet how your dragging method gets invoked.

Perhaps you should be registering a MouseMotionListener (with your movement code in the mouseDragged event handler) to the JLabel.