zooming into a custom component using mouse selection

[Schwartz, Cynthia L]

I have a custom component (currently placed within a TablePane)  and wish to 
mouse select a region of the component and zoom into that region, redrawing my 
custom component scaled appropriately.  Can you point me in the right direction 
to do this in Pivot?
I looked at ScaleDecorator but that doesn't handle mouse events to select the 
region.  Is there an example of this somewhere?

Thanks,
Cynthia