lily/event-chord-iterator.cc

   1 /*
   2   event-chord-iterator.cc -- implement Event_chord_iterator
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "context.hh"
  10 #include "warn.hh"
  11 #include "event-chord-iterator.hh"
  12 #include "music-list.hh"
  13 #include "event.hh"
  14
  15 Event_chord_iterator::Event_chord_iterator ()
  16 {
  17 }
  18
  19 Context *
  20 Event_chord_iterator::get_req_translator ()
  21 {
  22   assert (get_outlet ());
  23   if (get_outlet ()->is_bottom_context ())
  24     return get_outlet ();
  25
  26   set_translator (get_outlet ()->get_default_interpreter ());
  27   return get_outlet ();
  28 }
  29
  30 void
  31 Event_chord_iterator::construct_children ()
  32 {
  33   Simple_music_iterator::construct_children ();
  34   get_req_translator ();
  35 }
  36
  37 Event_chord*
  38 Event_chord_iterator::get_elt () const
  39 {
  40   return (Event_chord*) get_music ();
  41 }
  42
  43
  44 void
  45 Event_chord_iterator::process (Moment m)
  46 {
  47   if (last_processed_mom_ < Moment (0))
  48     {
  49       for (SCM s = dynamic_cast<Music_sequence *> (get_music ())->music_list ();
  50            gh_pair_p (s);  s = ly_cdr (s))
  51         {
  52           Music *mus = unsmob_music (ly_car (s));
  53
  54           bool gotcha = try_music (mus);
  55           if (!gotcha)
  56             mus->origin ()->warning (_f ("Junking event: `%s'", mus->name ()));
  57         }
  58     }
  59   Simple_music_iterator::process (m);
  60 }
  61
  62 IMPLEMENT_CTOR_CALLBACK (Event_chord_iterator);