[pygtk] DrawingArea user feedback

[Frédéric]

Hi,

I have a special widget, based on a DrawingArea, which displays pictures
positions for a panoamic head. See:

http://trac.gbiloba.org/papywizard/attachment/wiki/ScreenShots/shootDialog_mosaic_pc.png

The code is here:

http://trac.gbiloba.org/papywizard/browser/trunk/papywizard/view/shootingArea.py

In 'pause' mode, I would like to allow the user to select a previous
shooting position by clicking on the wanted position... How can I do
that? What is the mecanism to get the user click position on that area?
How to bind to a custom callback?

Thanks,

--
   Frédéric