John Brant and Don Roberts divided the original refactoring browser into
several components to aid in portability.   They supported it on VisualWorks
and VisualAge for a few years, so they had to separate the GUI from the
engine, and to have a portability layer underneath.   When it was ported to
Squeak, someone wrote a new GUI and used pretty much everything else
as-is.   I tried using it, but the GUI seemed incomplete.  The OB GIU is
very solid.

-Ralph
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20100409/47369306/attachment.htm