Hey, awesome library :)

I want to use this to build a Text Editor and want to add scrollbars for both x and y axis.
Is there some kind of listener/callback API that I missed to intercept changes in the current positioning of the ZoomLayout? If so I would be able to implement scrollbars myself and update them even when "flinging" the position.

It would also be cool to have something like this (scrollbars) built in - although it might be out of scope for this library.

Thx for the great work.