lily/music-list.cc

   1 /*
   2   music-list.cc -- implement Music_sequence, Simultaneous_music, Sequential_music
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "music-list.hh"
  10 #include "music-wrapper.hh"
  11 #include "musical-pitch.hh"
  12 #include "request.hh"
  13 #include "musical-request.hh"
  14 #include "music-iterator.hh"
  15 #include "main.hh"
  16 #include "killing-cons.tcc"
  17 #include "simultaneous-music-iterator.hh"
  18 #include "sequential-music-iterator.hh"
  19 #include "request-chord-iterator.hh"
  20
  21 Moment
  22 Simultaneous_music::length_mom () const
  23 {
  24   return maximum_length ();
  25 }
  26
  27 Simultaneous_music::Simultaneous_music(SCM head)
  28   : Music_sequence (head)
  29 {
  30   set_mus_property ("type",
  31                     Simultaneous_music_iterator::constructor_cxx_function);
  32 }
  33
  34 Sequential_music::Sequential_music(SCM head)
  35   : Music_sequence (head)
  36 {
  37   set_mus_property ("type",
  38                     Sequential_music_iterator::constructor_cxx_function);
  39 }
  40
  41
  42 Moment
  43 Sequential_music::length_mom () const
  44 {
  45   return cumulative_length ();
  46 }
  47
  48 Musical_pitch
  49 Simultaneous_music::to_relative_octave (Musical_pitch p)
  50 {
  51   return do_relative_octave (p, true);
  52 }
  53
  54 Request_chord::Request_chord(SCM s)
  55   : Simultaneous_music (s)
  56 {
  57   set_mus_property ("type",
  58                     Request_chord_iterator::constructor_cxx_function);
  59 }
  60
  61 Musical_pitch
  62 Request_chord::to_relative_octave (Musical_pitch last)
  63 {
  64   for (SCM s = music_list (); gh_pair_p (s);  s = gh_cdr (s))
  65     {
  66       Music * mus = unsmob_music (gh_car (s));
  67       if (Melodic_req *m= dynamic_cast <Melodic_req *> (mus))
  68         {
  69           Musical_pitch pit = *unsmob_pitch (m->get_mus_property ("pitch"));
  70
  71           pit.to_relative_octave (last);
  72           m->set_mus_property ("pitch", pit.smobbed_copy());
  73
  74           return pit;
  75         }
  76     }
  77   return last;
  78 }
  79
  80
  81