Scalebar with multiple patches (horizontally concatenated)

[PhilipeRLeal]

Dear developers,

I would like to thank you for the amazing package you have developed.

I was wondering if it would be possible to enhance it in order to accomodate multiple patches within a same scalebar. Something like Quantum-GIS does (see example below).

Scalebar example:

I created a discussion in StackOverflow regarding the use of the matplotlib.offset VPacker and HPacker on this regard (in here).

Sincerely,