Re: Changing Header Mid-Score

[Pierre-Luc Gauthier]

There is this thread :
https://lists.gnu.org/archive/html/lilypond-user/2019-08/msg00082.html

HTH

Le dim. 11 déc. 2022, à 17 h 35, Jean Abou Samra <jean@abou-samra.fr> a écrit :
>
> Le 11/12/2022 à 18:44, Lukas-Fabian Moser a écrit :
> > Am 11.12.22 um 10:32 schrieb Jacques Menu:
> >> Thumbs up, Jean, this is worth being in the LPNR!
> >
> > If I'm not mistaken, this marvelous code could easily be generalized
> > to provide a command (during music) which sets arbitrary variables
> > that may be retrieved in header/footer definitions, and which could be
> > made part of core LilyPond.
> >
> > My list of "stuff to do for LilyPond over the holidays" is already
> > overlong, and I'm sure I couldn't do it half as well, but I'm putting
> > it on my list anyway - unless Jean himself feels enticed to do it
> > himself?
>
>
> If you are motivated, have at it. I have enough to do for LilyPond as it
> is. Feel free to open an issue to discuss the details.
>
> For what it's worth, if integrating something like this into LilyPond,
> you can modify Page_breaking::draw_page in lily/page-breaking.cc so that
> it passes these "extra" titling variables to make-page from scm/page.scm
> directly. Then the markup can be directly interpreted with the final
> variables from the start, obviating this "gauge" argument to
> \scene-text. *But*, there is another caller of make-page, in
> Page_breaking::page_height. The latter is called from various parts of
> the page breaker while it is figuring out the best page breaking
> configuration. I'm not exactly sure if it's possible and/or desirable
> for the page breaker to pass the systems to Page_breaking::page_height
> and not just the page number + whether it's the last page. However, even
> if the gauge has to be retained for the sake of that, having the right
> stencils already after page breaking instead of using these
> "delay-stencil-evaluation" stencils would already be simpler.
>
> Best,
> Jean
>


-- 
Pierre-Luc Gauthier