Re: page footer and (on-page ...) in combination with \label

[Marc Hohl]

Am 21.01.2013 06:40, schrieb Jay Anderson:
> On Sun, Jan 20, 2013 at 1:53 PM, Marc Hohl <address@hidden> wrote:
> > For one specific page I have to remove the footer completely.
> > I set
> >
> > \label #'emptypage
> Can the page without a footer be in a book-part of its own? That would
> be too simple so I'm assuming not.
Correct.
> Below is adapted from some help I got a while back to move the hymn
> number to the outside of the page depending if the page is even or
> odd. In this case it blanks the footer when the current page is the
> same as the page number for the label (you can't reuse the same label
> on multiple pages).
>
> \version "2.17.10"
>
> #(define-markup-command (empty-with-label layout props sym markup)
> (symbol? markup?)
>    (let* ((stencil (interpret-markup layout props markup))
>           (x-ext (ly:stencil-extent stencil X))
>           (y-ext (ly:stencil-extent stencil Y)))
>      (ly:make-stencil
>       `(delay-stencil-evaluation
>         ,(delay (ly:stencil-expr
>                   (let* ((curr-page (chain-assoc-get 'page:page-number props 
> -1))
>                          (table (ly:output-def-lookup layout 'label-page-table))
>                          (page-number (if (list? table)
>                                           (assoc-get sym table)
>                                           #f)))
>                     (if (= page-number curr-page)
>                       empty-stencil
>                       (interpret-markup layout props markup))))))
>       x-ext
>       y-ext)))
>
> \paper
> {
>    oddFooterMarkup = \markup {\empty-with-label #'emptypage \fill-line
> {"footer"} }
>    evenFooterMarkup = #oddFooterMarkup
> }
>
> \bookpart
> {
>    \markup "A"
>    \pageBreak
>
>    \markup "B"
>    \pageBreak
>
>    \label #'emptypage
>    \markup "C"
>    \pageBreak
>
>    \markup "D"
>    \pageBreak
> }
Thanks a lot, that is exactly what I need!

Regards,

Marc