final ToolWindowTitleBarDragGesture dragGesture = new ToolWindowTitleBarDragGesture(descriptor);
SwingUtil.registerDragGesture(c, dragGesture);
panel.addContainerListener(new ContainerAdapter() {
public void componentAdded(ContainerEvent e) {
if (e.getChild() instanceof DragGestureInitiator) {
DragGestureInitiator dragGestureInitiator = (DragGestureInitiator) e.getChild();
dragGestureInitiator.setDragGesture(dragGesture);
}
}
});
}