On Mon, Nov 18, 2013 at 10:08 AM, Piaras Hoban <[email protected]> wrote:
> David Nalesnik-2 wrote
> > This seems like a bug to me.
> >
> > I applied your override to a similar grob, VoiceFollower, to see if the
> > problem is just with Glissando. I get the same disruption of vertical
> > spacing.
>
> David, thanks for your input. I fear it is a bug but not limited to stencil
> (must be something lower level that stencil is calling?).
>
I think it has to do with when 'after-line-breaking is called. Vertical
spacing obviously hasn't been solidified. If I modify your
override/function to work on 'color, which is processed very late, I get
the stencil without disruption and can get information from it.
\version "2.17.95"
#(define (stencil-test grob)
(let* ((stencil (ly:grob-property grob 'stencil)))
(display (ly:stencil-extent stencil Y))
'red))
\score {
\new PianoStaff <<
\new Staff = "right" {
\once \override Glissando.color = #stencil-test
c''2. \glissando
\change Staff = "left" c,4 |
}
\new Staff = "left" {\clef bass s1}
>>
}
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