HScale vs. VScale vs. Scale w/ "orientation"

[<skip pobox com>]

(I think I may have asked this before.)

Is there a reason there are both HScale and VScale widgets instead of a
single Scale widget that has an orientation parameter?  If I submitted diffs
to make this happen (pushing most code into gtkscale.c and keeping HScale
and VScale as stubs for backwards compatibility), would this be
useful/accepted?  If not, are diffs to bring gtkhscale.c and gtkvscale.c
more into sync welcome (mostly removing spurious diffs and making sure they
make the same assertions)?  There is so much code duplication between
between the two current scale widgets...

-- 
Skip Montanaro (skip pobox com)
(847)971-7098