This is either bug or the most incredible subtlety. Regarding the attached
.ly file; notice how the same code is used 4 times, but each time the
PhrasingSlur
is started at a different place; now notice how the only time that the scheme
code works correctly is when the slur is started at the start of the bar.
I'm fairly sure this must be a bug, as I can't see any way that anything
could change from just the movement of the start of a slur.
Thanks,
Stewart
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#(define (pagebreakone grob)
(let* (
; have we been split?
(orig (ly:grob-original grob))
; if yes, get the split pieces (our siblings)
(siblings (if (ly:grob? orig)
(ly:spanner-broken-into orig) '() )))
(if (and (>= (length siblings) 2)
(eq? (car (last-pair siblings)) grob))
(ly:grob-set-property! grob 'control-points '((0 . 0) (5 . 5) (10 . 15) (15 . 0))))))
\relative
{
\override PhrasingSlur #'after-line-breaking = #pagebreakone
c \( d e f | \break
c d e f \) | \break
c d \( e f | \break
c d e f \) | \break
c d e \( f | \break
c d e f \) | \break
c d e f \( | \break
c d e f \) |
}
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