Hi Lukas,
> One can write a function that chooses the right format of the page number
> depending on where we are in the score. In the following solution , one has
> to define (beforehand) how many pages are to be considered "introduction",
> but I think this is not too nasty.
Interesting approach! Thanks for posting.
Here’s the equivalent — well, almost — using bookpart-page-number:
%%% SNIPPET BEGINS
\version "2.19.80"
#(define-markup-command (bookpart-page-number layout props) ()
(let ((first-page-number (ly:output-def-lookup layout 'first-page-number))
(page-number (chain-assoc-get 'page:page-number props 0)))
(interpret-markup layout props (format "~a" (1+ (- page-number
first-page-number))))))
\paper {
oddHeaderMarkup = \markup \null
evenHeaderMarkup = \markup \null
oddFooterMarkup = \markup { \fill-line { \bookpart-page-number } }
evenFooterMarkup = \oddFooterMarkup
}
\book {
\bookpart {
\paper {
page-number-type = #'roman-lower %% doesn’t currently work
}
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } }
}
\bookpart {
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } } \pageBreak
\score { \new Staff { s1 } }
}
}
%%% SNIPPET ENDS
Evidently, the choice of page number formatting (e.g., roman) doesn’t work,
because the bookpart-page-number function assumes/hardcodes the format… but
otherwise, I prefer this solution, as it is (to my eye) a more natural way of
coding book parts [with individual numbering].
I’m going to take the challenge to up my Scheme-fu, by trying to tackle the
improvement of the bookpart-page-number function to handle different formatting
as giving in \paper variables.
Related: Lily’s entire page-numbering system needs a re-look, so that
multi-part, multi-format, maybe-number-reset-but-maybe-not documents can be
handled elegantly and with minimal user coding (such as additional functions
like yours and mine).
Cheers,
Kieren.
________________________________
Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: i...@kierenmacmillan.info
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