Re: Re: automatic line-breaking in markup

[Thomas Morley]

2016-02-04 8:01 GMT+01:00 Jonathan Scholbach <address@hidden>:

> Nice! Thank you, Harm! Actually I have (unarguable) reasons to put the title
> in a string variable.

Am I missing something? In my example title _is_ a string

> But since I do not understand anything of the code in
> your snippet I cannot manage to adapt your macro to take a string variable
> as input. It would be very kind of you if you did even that for me.
>
> Jonathan
>

Anyway, if you want to get wordwrapping strings, you my use our \wordwrap-string
http://www.lilypond.org/doc/v2.19/Documentation/notation/align

In case you want to align it differently, you may be interested in:

#(define-markup-command (my-wordwrap-string layout props align strg)
  (number? string?)
  #:properties ((baseline-skip))
  #:category align
  "Same as @code{wordwrap-field}, but internally a stencil-list is produced
first, which will aligned according to @var{align}, putting out a single
stencil."

  ;; c/p from define-markup-commands.scm, because it's not public
  (define (general-column align-dir baseline mols)
    "Stack @var{mols} vertically, aligned to  @var{align-dir} horizontally."
    (let* ((aligned-mols
             (map (lambda (x) (ly:stencil-aligned-to x X align-dir)) mols))
           (stacked-stencil (stack-lines -1 0.0 baseline aligned-mols))
           (stacked-extent (ly:stencil-extent stacked-stencil X)))
      (ly:stencil-translate-axis stacked-stencil (- (car stacked-extent)) X)))


  (general-column
    align
    baseline-skip
    (wordwrap-string-internal-markup-list layout props #f strg)))


title = "Many many words may result in a title that is too long for one line"

\paper {
  bookTitleMarkup =
    \markup \fill-line { \fontsize #15 \my-wordwrap-string #CENTER \title }
}

\relative c' { c d e f }


HTH,
  Harm