Interactivity with the mouse

Hi !

The more I look at matplotlib, the more nice feature I find.
However there are more that I haven't found yet, eventhough they might
be implemented. I would like to have a little more interactivity with
the plot itself. By this I do not mean the interactivity with the python
shell, but with the mouse:
- Double click on the legend/axes/label allow it modification
- Single Click on a drawn line give the properties of the function
and/or location
- In short, being able to treat elements of the figure as widgets
- I reckon the whole figure is a DrawingArea and that might not be
straight forward

Of course just having a signal sent with the propoerties of the curves
would be good enough

Are more people interested in that ?