Am 11.05.2018 um 11:16 schrieb Malte Meyn:
I found a way to do this for scores but not for toplevel markups. It’s
not even a complicated calculation: just let
VerticalAxisGroup.after-line-breaking print it’s Y-extent.
Oops, forgot about scores with multiple staves … And I’d thought that
VerticalAxisGroup lived in Score.
I tried to print the Y-offset too but it seems like
ly:hara-kiri-group-spanner::force-hara-kiri-callback doesn’t only get
the offset but set it so asking for it
(ly:grob-property grob 'Y-extent)
has a side-effect: It shifts the next staff (see code below). I’ll have
a closer look and come back when I find something better.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.19.81"
\layout {
\override Score.VerticalAxisGroup.after-line-breaking =
#(lambda (grob)
(let ((extent (ly:grob-property grob 'Y-extent))
(offset (ly:grob-property grob 'Y-offset)))
(print "~a ~a\n" extent offset)))
}
<< \new Staff a \new Staff g >>
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