lily/lyric-combine-music.cc

   1 /*
   2   lyric-combine-music.cc -- implement Lyric_combine_music
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "music.hh"
  10
  11 struct Lyric_combine_music
  12 {
  13 public:
  14   DECLARE_SCHEME_CALLBACK (length_callback, (SCM));
  15 };
  16
  17 MAKE_SCHEME_CALLBACK (Lyric_combine_music, length_callback, 1);
  18 SCM
  19 Lyric_combine_music::length_callback (SCM m)
  20 {
  21   Music *me = unsmob_music (m);
  22   Music *melody = unsmob_music (scm_car (me->get_property ("elements")));
  23   return melody->get_length ().smobbed_copy ();
  24 }