lilypond-common-includes/footer_with_songinfo.ly

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#(use-modules (ice-9 receive))
#(define (format-author layout authorId noDetails)
(let ((author (if (defined? 'AUTHOR_DATA) (assoc-ref AUTHOR_DATA authorId) #f)))
(if author
((ly:output-def-lookup layout 'authorFormat)
noDetails
(assoc-ref author "name")
(assoc-ref author "trail_name")
(assoc-ref author "birth_year")
(assoc-ref author "death_year")
(assoc-ref author "organization")
)
"unbekannt")))
#(define (find-author-ids-by contributionType authors)
(filter-map (lambda (authordata) (if (member contributionType (cdr authordata)) (car authordata) #f)) authors))
#(define (find-author-id-with-part-numbers contributionType authors)
(filter-map (lambda (authordata)
(let ((contributionNumbers (filter-map (lambda (contribution) (if (and (list? contribution) (equal? contributionType (car contribution))) (cadr contribution) #f)) (cdr authordata)))
(authorId (car authordata)))
(if (null? contributionNumbers) #f (cons authorId contributionNumbers))
)) authors))
#(define-markup-command (print-songinfo layout props) ()
(define (songinfo-from songId key)
(let ((song (if (defined? 'SONG_DATA) (assoc-ref SONG_DATA songId) #f)))
(if song
(assoc-ref song key)
(ly:warning (ly:format "song with id ~a not found" songId)))))
(define (format-poet poetId)
(string-append (ly:output-def-lookup layout 'poetPrefix) " " (format-author layout poetId #f)))
(define (format-composer composerId)
(string-append (ly:output-def-lookup layout 'composerPrefix) " " (format-author layout composerId #f)))
(define (format-poet-and-composer authorId)
(string-append (ly:output-def-lookup layout 'poetAndComposerEqualPrefix) " " (format-author layout authorId #f)))
(define (numbered-contribution-prefix contributionNumbers prefixLookup)
(string-append
(string-join (map (lambda (contributionNumber) (ly:format "~a." contributionNumber)) contributionNumbers) ", ")
" "
(ly:output-def-lookup layout prefixLookup)
)
)
(define referencedAuthors '())
(define (format-authors authorIds)
(map (lambda (authorId)
(format-author
layout
authorId
(if (member authorId referencedAuthors)
#t
(begin
(set! referencedAuthors (cons authorId referencedAuthors))
#f)))
) authorIds)
)
(define (render-contribution-group contributionPrefix authorIds)
(if (null? authorIds)
""
(string-append contributionPrefix " " (string-join (format-authors authorIds) ", ")))
)
(define (render-partial-contribution-group prefixLookup authorData)
(if (null? authorData)
""
(let ((firstAuthorContributions (cdar authorData)))
(receive (authorDataSame authorDataOther)
(partition (lambda (authorEntry) (equal? (cdr authorEntry) firstAuthorContributions)) authorData)
(string-append
(render-contribution-group (numbered-contribution-prefix firstAuthorContributions prefixLookup) (map car authorDataSame))
" "
(render-partial-contribution-group prefixLookup authorDataOther)
))))
)
(define (join-present items joiner)
(string-join (filter (lambda (item) (and (string? item) (not (string-null? (string-trim-both item))))) items) joiner)
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)
(define (poet-and-composer-from-authors authors)
(if authors
(let (
(poetIds (find-author-ids-by 'text authors))
(translatorIds (find-author-ids-by 'translation authors))
(versePoetData (find-author-id-with-part-numbers 'verse authors))
(composerIds (find-author-ids-by 'melody authors))
(verseComposerData (find-author-id-with-part-numbers 'meloverse authors))
(voiceComposerData (find-author-id-with-part-numbers 'voice authors))
(compositionIds (find-author-ids-by 'composition authors))
(bridgeIds (find-author-ids-by 'bridge authors))
(interludeIds (find-author-ids-by 'interlude authors))
(year_text (chain-assoc-get 'header:year_text props #f))
(year_translation (chain-assoc-get 'header:year_translation props #f))
(year_melody (chain-assoc-get 'header:year_melody props #f))
(year_composition (chain-assoc-get 'header:year_composition props #f))
)
(if (and (equal? poetIds composerIds) (null? translatorIds) (null? versePoetData) (null? verseComposerData) (null? voiceComposerData) (null? compositionIds) (null? bridgeIds) (null? interludeIds))
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(list
(join-present (list
(render-contribution-group (ly:output-def-lookup layout 'poetAndComposerEqualPrefix) poetIds)
(if (equal? year_text year_melody) year_text (join-present (list year_text year_melody) "/"))
) ", ")
#f)
(list
(if (and (null? poetIds) (null? versePoetData) (null? translatorIds)) #f
(string-append
(ly:output-def-lookup layout 'poetPrefix)
" "
(join-present (list
(join-present (list
(render-contribution-group "" poetIds)
year_text
) ", ")
(render-partial-contribution-group 'versePrefix versePoetData)
(join-present (list
(render-contribution-group (ly:output-def-lookup layout 'translationPrefix) translatorIds)
year_translation
) ", ")
) "; ")
))
(if (and (null? composerIds) (null? compositionIds) (null? verseComposerData) (null? voiceComposerData) (null? bridgeIds) (null? interludeIds)) #f
(string-append
(ly:output-def-lookup layout 'composerPrefix)
" "
(join-present (list
(join-present (list
(render-contribution-group "" composerIds)
year_melody
) ", ")
(render-partial-contribution-group 'versePrefix verseComposerData)
(render-partial-contribution-group 'voicePrefix voiceComposerData)
(join-present (list
(render-contribution-group (ly:output-def-lookup layout 'compositionPrefix) compositionIds)
year_composition
) ", ")
(render-contribution-group (ly:output-def-lookup layout 'bridgePrefix) bridgeIds)
(render-contribution-group (ly:output-def-lookup layout 'interludePrefix) interludeIds)
) "; ")
)))))
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(list #f #f)
)
)
(interpret-markup layout props
(if (chain-assoc-get 'page:is-bookpart-last-page props #f)
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(let* ((authors (chain-assoc-get 'header:authors props #f))
(poet-and-composers (poet-and-composer-from-authors authors))
(songId (chain-assoc-get 'header:songId props #f))
(poetId (chain-assoc-get 'header:poetId props (if songId (songinfo-from songId "poet") #f)))
(composerId (chain-assoc-get 'header:composerId props (if songId (songinfo-from songId "composer") #f)))
(poet-and-composer-same (equal? poetId composerId)))
(let ((infotext (chain-assoc-get 'header:infotext props (chain-assoc-get 'header:songinfo props #f)))
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(poet-maybe-with-composer (chain-assoc-get 'header:poet props (if poetId (if poet-and-composer-same (format-poet-and-composer poetId) (format-poet poetId)) (car poet-and-composers))))
(composer (chain-assoc-get 'header:composer props (if (and composerId (not poet-and-composer-same)) (format-composer composerId) (cadr poet-and-composers))))
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(copyright (chain-assoc-get 'header:copyright props #f))
(translation (chain-assoc-get 'header:translation props #f))
(pronunciation (chain-assoc-get 'header:pronunciation props #f))
(year_text (if (string? (car poet-and-composers)) #f (chain-assoc-get 'header:year_text props #f)))
(year_melody (if (string? (car poet-and-composers)) #f (chain-assoc-get 'header:year_melody props #f))))
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(markup
#:override (cons 'songinfo:poet-maybe-with-composer
(if (and poet-maybe-with-composer (not (and (string? poet-maybe-with-composer) (string-null? poet-maybe-with-composer)))) poet-maybe-with-composer #f))
#:override (cons 'songinfo:composer
(if (and composer (not (and (string? composer) (string-null? composer)))) composer #f))
#:override (cons 'songinfo:copyright
(if (and copyright (not (and (string? copyright) (string-null? copyright)))) copyright #f))
#:override (cons 'songinfo:infotext
(if (and infotext (not (and (string? infotext) (string-null? infotext)))) infotext #f))
#:override (cons 'songinfo:translation
(if (and translation (not (and (string? translation) (string-null? translation)))) translation #f))
#:override (cons 'songinfo:pronunciation
(if (and pronunciation (not (and (string? pronunciation) (string-null? pronunciation)))) pronunciation #f))
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#:override (cons 'songinfo:year_text
(if (and year_text (not (and (string? year_text) (string-null? year_text)))) year_text #f))
#:override (cons 'songinfo:year_melody
(if (and year_melody (not (and (string? year_melody) (string-null? year_melody)))) year_melody #f))
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#:override '(baseline-skip . 3.0)
#:fontsize songInfoFontSize
#:sans
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(ly:output-def-lookup layout 'songinfoMarkup)
)))
(make-null-markup)))
)
#(define-markup-command (print-pagenumber layout props)()
(let ((label (chain-assoc-get 'header:myindexlabel props #f)))
(interpret-markup layout props
(markup #:large #:bold
(if label
(make-custom-page-number-markup label (chain-assoc-get 'page:page-number props 0))
(make-fromproperty-markup 'page:page-number-string)
)
))))
#(define-markup-command (fractional-line-width layout props arg)(markup?)
(interpret-markup layout props
(make-override-markup
`(line-width . ,(* (chain-assoc-get 'header:songinfo-size-factor props songInfoLineWidthFraction) (ly:output-def-lookup layout 'line-width)))
arg)))
\paper {
print-first-page-number = ##t
first-page-number = #0
oddFooterMarkup = \markup {
\fill-line {
\line { \null }
\line { \general-align #Y #DOWN \fractional-line-width \print-songinfo }
\line { \if \should-print-page-number \print-pagenumber }
}
}
evenFooterMarkup = \markup {
\fill-line {
\line { \if \should-print-page-number \print-pagenumber }
\line { \general-align #Y #DOWN \fractional-line-width \print-songinfo }
\line { \null }
}
}
}