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Re: Mettre un soufflet entre parenthèses


From: Seventies
Subject: Re: Mettre un soufflet entre parenthèses
Date: Mon, 17 Dec 2012 10:15:28 -0800 (PST)

Voilà, en cherchant sur la toile, la même fonction, mais qui, elle, travaille
correctement :

hairpinBetweenText =
#(define-music-function (parser location leftText rightText) (markup?
markup?)
   #{
     \once \override Hairpin #'stencil =
     #(lambda (grob)
       (let* ((orig (ly:grob-original grob))
              (siblings (if (ly:grob? orig)
                            (ly:spanner-broken-into orig)
                            '()))
              (hairpin-stencil (ly:stencil-aligned-to
(ly:hairpin::print grob) Y CENTER))
              (left-addition (ly:stencil-aligned-to
(grob-interpret-markup grob leftText) Y CENTER))
              (right-addition (ly:stencil-aligned-to
(grob-interpret-markup grob rightText) Y CENTER)))
         (if (or (null? siblings)
                 (eq? grob (car siblings)))
             (set! hairpin-stencil
                   (ly:stencil-combine-at-edge
                     left-addition
                     X RIGHT
                     hairpin-stencil
                     0)))
         (if (or (null? siblings)
                 (eq? grob (car (reverse siblings))))
             (set! hairpin-stencil
                   (ly:stencil-combine-at-edge
                     hairpin-stencil
                     X RIGHT
                     right-addition
                     0.6)))
         hairpin-stencil))
   #})

Ne comprenant pas grand-chose au Scheme, je ne peux expliquer la différence,
et pourquoi le snippet de http://lsr.dsi.unimi.it ne fonctionne pas.
Un problème de version, peut-être ?

Et toutes mes excuses pour l'erreur de manipulation dans le message
original, c'était fort long - un mauvais copier/coller

Cordialement,

Jean-François 



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