Centering markup on note heads automatically - Revision history

Lemzwerg: New category

2025-11-21T23:17:04Z

New category

← Older revision		Revision as of 23:17, 21 November 2025
Line 62:		Line 62:
	[[Category:Text]]		[[Category:Text]]
	[[Category:Tweaks and overrides]]		[[Category:Tweaks and overrides]]
	[[Category:Contexts and engravers]][[Category:Snippet]]		[[Category:Contexts and engravers]]
			[[Category:Snippet]]

Lemzwerg at 22:48, 21 November 2025

2025-11-21T22:48:40Z

← Older revision		Revision as of 22:48, 21 November 2025
Line 62:		Line 62:
	[[Category:Text]]		[[Category:Text]]
	[[Category:Tweaks and overrides]]		[[Category:Tweaks and overrides]]
	[[Category:Contexts and engravers]]		[[Category:Contexts and engravers]][[Category:Snippet]]

Jean Abou Samra: Replace version="2.24.0" with version="2.24" now that the LilyWiki extension supports auto-selecting the latest release in a stable series

2025-11-16T18:45:34Z

Replace version="2.24.0" with version="2.24" now that the LilyWiki extension supports auto-selecting the latest release in a stable series

← Older revision		Revision as of 18:45, 16 November 2025
Line 3:		Line 3:
	Instead of using trial-and-error offset tweaks, this snippet uses a Scheme engraver to reset the horizontal parent of each markup to a <code>NoteColumn</code>. This also allows text to follow note heads which have been shifted via <code>force-hshift</code>.		Instead of using trial-and-error offset tweaks, this snippet uses a Scheme engraver to reset the horizontal parent of each markup to a <code>NoteColumn</code>. This also allows text to follow note heads which have been shifted via <code>force-hshift</code>.

	<lilypond version="2.24.0">		<lilypond version="2.24">
	#(define (Text_align_engraver ctx)		#(define (Text_align_engraver ctx)
	(let ((scripts '())		(let ((scripts '())

Jean Abou Samra: Import snippet from LSR

2025-10-26T22:44:05Z

Import snippet from LSR

New page

For technical reasons, text scripts attached to note heads cannot easily be centered on a note head's width, unlike articulations.

Instead of using trial-and-error offset tweaks, this snippet uses a Scheme engraver to reset the horizontal parent of each markup to a <code>NoteColumn</code>. This also allows text to follow note heads which have been shifted via <code>force-hshift</code>.

<lilypond version="2.24.0">
#(define (Text_align_engraver ctx)
(let ((scripts '())
(note-column #f))
(make-engraver
(acknowledgers
((note-column-interface trans grob source)
;; cache NoteColumn in this Voice context
(set! note-column grob))
((text-script-interface trans grob source)
;; whenever a TextScript is acknowledged,
;; add it to `scripts' list
(set! scripts (cons grob scripts))))
((stop-translation-timestep trans)
;; if any TextScript grobs exist,
;; set NoteColumn as X-parent
(for-each (lambda (script)
(set! (ly:grob-parent script X) note-column))
scripts)
;; clear scripts ready for next timestep
(set! scripts '())))))

\layout {
\context {
\Voice
\consists #Text_align_engraver
\override TextScript.X-offset =
#ly:self-alignment-interface::aligned-on-x-parent
\override TextScript.self-alignment-X = #CENTER
}
}

%% Remark:
%% Once the LSR moves to 2.20 the engraver could be deleted,
%% sufficient would be:
%{
\layout {
\context {
\Voice
\override TextScript.self-alignment-X = #CENTER
\override TextScript.parent-alignment-X = #CENTER
}
}
%}

\new Staff <<
\relative c'' {
\override NoteColumn.force-hshift = #3
c1-\markup { \arrow-head #Y #DOWN ##t }
}
\\
\relative c' {
a4 a-\markup { \huge ^ } a a
}
>>
</lilypond>

[[Category:Text]]
[[Category:Tweaks and overrides]]
[[Category:Contexts and engravers]]