lily/lyric-combine-music.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1999--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "music.hh"
  21
  22 struct Lyric_combine_music
  23 {
  24 public:
  25   DECLARE_SCHEME_CALLBACK (length_callback, (SCM));
  26 };
  27
  28 MAKE_SCHEME_CALLBACK (Lyric_combine_music, length_callback, 1);
  29 SCM
  30 Lyric_combine_music::length_callback (SCM m)
  31 {
  32   Music *me = unsmob_music (m);
  33   Music *melody = unsmob_music (scm_car (me->get_property ("elements")));
  34   return melody->get_length ().smobbed_copy ();
  35 }