Re: Tweaking an ottava bracket after a break

[Jean Abou Samra]

Le 06/11/2021 à 22:01, Knute Snortum a écrit :
> Hello again,
>
> I have a situation where I need to adjust the padding of an ottava
> bracket after a line break. That is, I want to affect the bracket on
> the second line, but not the first.
>
> I know you can do something like this with the \shape function, but
> what about brackets?
>
> I tried this solution -- blatantly stolen from the Difficult Tweaking
> section in the manual -- but it doesn't work.
>
> %%%
> \version "2.22.1"
>
> #(define (my-callback 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 'padding 4))))
>
> \relative {
>    \override OttavaBracket.after-line-breaking = #my-callback
>    \ottava 1 c''''1 \break
>    c2 2
> }
> %%%
>
> Anything easier than this?  Some other solution?


It should be Staff.OttavaBracket because the
Ottava_spanner_engraver is in Staff context
(http://lilypond.org/doc/v2.22/Documentation/internals/ottava_005fspanner_005fengraver).

As Kieren showed, this is much easier done using
\alterBroken. The documentation was outdated, see

https://gitlab.com/lilypond/lilypond/-/merge_requests/991

Best,
Jean