Placing component on Glass Pane

Question

I have a subclass of JLabel that forms a component of my GUI. I have implemented the ability to drag and drop the component from one container to another, but without any v

Answer 1

Besides the pointers to the LayerPane examples already provided, the issue with your original code centers around the setting of the preferred size of your label. You set it before the JLabel has been sized, so your:

l.setPreferredSize(l.getSize());

is ineffectual. If, on the other hand, you make that call after you make your call to setBounds, you will see your desired results. With that in mind, reorder this:

l.setPreferredSize(l.getSize());
l.setBounds(10, 10, 50, 20);

to look like this:

l.setBounds(10, 10, 50, 20);
l.setPreferredSize(l.getSize());