Adapting my previous code to work with spanners:
%%%%%
#(define (outside-staff-collecting-engraver context)
(let* ((span_up #f) (span_down #f))
(make-engraver
((initialize engraver)
(set! span_up (ly:engraver-make-grob engraver 'TextSpanner '()))
(ly:grob-set-property! span_up 'transparent #t)
(ly:grob-set-property! span_up 'direction UP)
(set! span_down (ly:engraver-make-grob engraver 'TextSpanner '()))
(ly:grob-set-property! span_down 'transparent #t)
(ly:grob-set-property! span_down 'direction DOWN))
(acknowledgers
((outside-staff-interface engraver grob source-engraver)
(if (assoc-get 'align (ly:grob-property grob 'details))
(let* ((d (ly:grob-property grob 'direction))
(span (if (= d UP) span_up span_down)))
(ly:grob-set-parent! grob Y span)
(if (null? (ly:spanner-bound span LEFT))
(ly:spanner-set-bound! span LEFT
(if (ly:spanner? grob)
(ly:spanner-bound grob LEFT)
grob)))
(ly:spanner-set-bound! span RIGHT
(if (ly:spanner? grob)
(ly:spanner-bound grob LEFT)
grob))
(ly:grob-set-property! grob 'outside-staff-priority #f)
(ly:grob-set-property! grob 'Y-offset 0))))))))
\layout {
\context {
\Staff
\consists #outside-staff-collecting-engraver
}
\context {
\Voice
\consists Horizontal_bracket_engraver
\override HorizontalBracket.direction = #UP
}
}
\new Voice \relative c'' {
<<
{ \repeat unfold 4 {c4} \repeat unfold 4 {c'4} }
{ s4 s\startGroup s s\stopGroup | s\startGroup s s\stopGroup s }
>>
}
\new Voice \relative c'' {
\override HorizontalBracket.details.align = ##t
<<
{ \repeat unfold 4 {c4} \repeat unfold 4 {c'4} }
{ s4 s\startGroup s s\stopGroup | s\startGroup s s\stopGroup s }
>>
}
%%%%%
Cheers,
Valentin
Am Montag, 15. Juli 2024, 06:34:18 MESZ schrieb Fennel:
> Per-system vertical alignment of all horizontal brackets is the goal. This
> can almost be achieved by adjusting the staff padding property (to a value
> large enough that no other objects will interfere with the brackets), but
> then we have the problem of the brackets being too far off of the staff for
> almost every system.
>
> I’ll take a look at what you suggested, Valentin. Hopefully it works for
> what I need!
>
> -Fennel
>
>
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