Re: mouse coordinates of drop (as in drag and drop) - SOLVED

From: cte (cte_cte_at_yahoo.com.au)
Date: 10/03/03 

Date: 3 Oct 2003 01:01:08 -0700

cte_cte@yahoo.com.au (cte) wrote in message news:<c1d93aa6.0310012141.3a38368a@posting.google.com>...
> I have a swing program involving drag and drop - implemented with
> javax.swing.TransferHandler etc.
>
> My problem is that I want to determine the mouse coordinates of a drop
> onto one of my components and TransferHandler does not seem to have
> any means of doing this.

I don't know if it's bad form to reply to my own post but I've worked
out a semi-solution that does enough. There's a method in
java.awt.Component (which is an ancestor of JComponent): public
DropTarget getDropTarget (). I was able to call this method which
retrieves the Swing implementation (an inner class of
TransferHandler), and add a java.awt.dnd.DropTargetListener to it.

Now for the dodgy bit ;D. The documentation for DropTarget indicates
that only one DropTargetListener may be attached to a DropTarget and
an Exception is thrown if you try to add more than one. However the
inner class of TransferHandler that is a DropTarget does *not* throw
an Exception. Lucky for me, but I'm also uncomfortable relying on a
private implementation detail like this...

Cheers
Chris