Swing: Delegate events to child components of transformed parent

Question

I've got a custom component GameViewCanvas extends JPanel that will hold a number of tiles (800x800 textures). Now in GameViewCanvas I've overridden the paint() method, so that it will paint the children on a transformed canvas (zoom, panning and rotation).

I now want to delegate events like MouseEvent and MouseMotionEvent to the respective children - the problem of course being that Swing has no idea where the children are on the actual frame. I thought I might be able to just override a method like getComponentAt in the parent but no such luck - I figure Swing is looping through the children directly?

Maybe I'm going about this all wrong, so please advice. Thanks in advance.

Answer 1

Take a look at JXLayer . It does exactly what you've just asked.

There are some excellent examples by Piet Blok, which have, unfortunately, disappeared off the net. To this end, I've made them available here .

Take a look at the TestWrapped demo in the pbjar source. It is probably the (among) the best example.

ps - JXLayer is now officially part of Java 7, known as JLayer