Separating footers with a horizontal line - Revision history

SimonAlbrecht: remove spurious comment, add new comment for documentation

2026-02-26T12:21:45Z

remove spurious comment, add new comment for documentation

SimonAlbrecht: New snippet: Separating footers with a horizontal line

2026-02-26T11:43:35Z

New snippet: Separating footers with a horizontal line

New page

Separating footers from the main content of the page using a horizontal line can be done by altering the <code>oddFooterMarkup</code> paper variable (and <code>evenFooterMarkup</code>, if they should be different). However, this requires printing the horizontal line only if any footer is shown on that page; this snippet demonstrates how to program such a condition.

<lilypond version="2.24" full>
#(define (separator-condition layout props arg)
(if (or (and (chain-assoc-get 'header:copyright props)
;on-first-page-of-part copied from ly/titling-init.ly
(= (chain-assoc-get 'page:page-number props -1)
(ly:output-def-lookup layout 'first-page-number)))
(and (chain-assoc-get 'header:tagline props)
;on-last-page
(chain-assoc-get 'page:is-bookpart-last-page props #f)
(chain-assoc-get 'page:is-last-bookpart props #f)))
(interpret-markup layout props arg)
empty-stencil))

\header {
tagline = "Special tagline"
}

\paper {
#(set-paper-size "a9landscape")
oddFooterMarkup = \markup \center-column {
%% how to make the following horizontal line conditional on whether the
%% following header fields aren’t empty?
\on-the-fly \separator-condition \with-color #grey \override #'(span-factor . 1/3) \draw-hline
%% Copyright header field only on first page in each bookpart.
\if \on-first-page-of-part \fill-line {
\fromproperty #'header:copyright
}
%% Tagline only on last page in each book.
\if \on-last-page \fill-line {
\fromproperty #'header:tagline
}
}
}

\bookpart {
\markup "(Public Domain content)"
}
\bookpart {
\header { copyright = "©" }
\markup "(Copyright content)"
\pageBreak
\markup \column { "(no Copyright statement""on subsequent page)" }
}
\bookpart {
\markup "(final page with tagline)"
}
</lilypond>

[[Category:Non-music]]
[[Category:Paper and layout]]
[[Category:Stylesheet]]
[[Category:Titles]]

← Older revision		Revision as of 12:21, 26 February 2026
Line 3:		Line 3:
	<lilypond version="2.24" full>		<lilypond version="2.24" full>
	#(define (separator-condition layout props arg)		#(define (separator-condition layout props arg)
			;; only print `arg' if copyright and/or tagline is printed on that page
	(if (or (and (chain-assoc-get 'header:copyright props)		(if (or (and (chain-assoc-get 'header:copyright props)
	;on-first-page-of-part copied from ly/titling-init.ly		;; on-first-page-of-part copied from ly/titling-init.ly
	(= (chain-assoc-get 'page:page-number props -1)		(= (chain-assoc-get 'page:page-number props -1)
	(ly:output-def-lookup layout 'first-page-number)))		(ly:output-def-lookup layout 'first-page-number)))
	(and (chain-assoc-get 'header:tagline props)		(and (chain-assoc-get 'header:tagline props)
	;on-last-page		;; on-last-page (two following conditions)
	(chain-assoc-get 'page:is-bookpart-last-page props #f)		(chain-assoc-get 'page:is-bookpart-last-page props #f)
	(chain-assoc-get 'page:is-last-bookpart props #f)))		(chain-assoc-get 'page:is-last-bookpart props #f)))
Line 21:		Line 22:
	#(set-paper-size "a9landscape")		#(set-paper-size "a9landscape")
	oddFooterMarkup = \markup \center-column {		oddFooterMarkup = \markup \center-column {
	~~%% how to make the following horizontal line conditional on whether the~~
	~~%% following header fields aren’t empty?~~
	\on-the-fly \separator-condition \with-color #grey \override #'(span-factor . 1/3) \draw-hline		\on-the-fly \separator-condition \with-color #grey \override #'(span-factor . 1/3) \draw-hline
	%% Copyright header field only on first page in each bookpart.		%% Copyright header field only on first page in each bookpart.