Re: add stencil-whiteout-outline function (issue 236480043 by address@hidden)

[Simon Albrecht]

Hello,

Am 31.05.2015 um 03:07 schrieb address@hidden:
> I realize I am changing my opinion here on a few points:
[…]
> > (A convert-ly rule may be needed… maybe in any case to
> > change whiteout to whiteout-box? ...or maybe not?)
>
> Looking at the existing uses of \whiteout Xxx.whiteout, it does seem
> best to leave the plain box whiteout in existing scores. Convert-ly to
> \whiteout-box one way to preserve the behavior, but it would be better
> to leave the old markup function \whiteout for the old behavior, and add
> \whiteout-outline.
If I may chime in here: I think this is unnecessarily conservative. The 
new method for whiteout is certainly much more elegant and more what one 
would expect in the first place, than the method we have been using. 
It’s rather going to be special cases in which \whiteout-box would be 
preferable, and in most cases it will be \whiteout-outline, not the 
other way around. \whiteout-outline is just a bit too clumsy to be used 
for what is a real improvement.
So my vote goes toward \whiteout-box for the old and simply \whiteout 
for the new markup command.
Concerning the grob property: what about .whiteout = #'box for the old 
and .whiteout = #⟨x⟩ for the new behaviour, x being the thickness, 
measured in line-thickness?

Regards, Simon