Re: Sending MouseEvents to JComponents visible through the bounds of another JComponent

• Subject: Re: Sending MouseEvents to JComponents visible through the bounds of another JComponent
• From: Timothy Wall <email@hidden>
• Date: Mon, 9 Feb 2004 09:19:19 -0500

I apologize if this gets posted more than once, but the original post did not appear on the list's site after 15 hours, so I'm posting again.

I have a JFrame containing JComponents that implement their own drawing via Graphics2D.draw(Shape). The JComponents are draggable, and most of their shapes do not fill their bounds. Hence, there are situations where:

- two JComponents, A and B, both have Shapes drawn that are, say triangles,
- A and B overlap with A above B (i.e., A's position index is lower), and
- part of B's triangle shows through the bounds of A.

In this situation, I need B to receive a mouse event when the part of B that is clicked on is visible through the bounds of A - normally, only A would receive a mouseEvent since the click is inside its bounds. It's easy enough to test that A's triangle is not under the mouse click with A.Shape.contains(Point). But I have not found a direct way to pass the mouseEvent to B. The glassPane could be made visible, and then intercept and handle all mouseEvents, but this might complicate drags and DnD events. Or, an AWTEventListener could register with the Toolbox and handle mouseEvents. Both of these solutions seems a bit round-about.

Is there a more straight forward mechanism for passing the mouseEvent on to JComponent B in this scenario?

Thanks,
-David

David Daniel
New Mexico State University
email@hidden
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