2 simultaneous-music-iterator.hh -- declare Simultaneous_music_iterator
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef SIMULTANEOUS_MUSIC_ITERATOR_HH
11 #define SIMULTANEOUS_MUSIC_ITERATOR_HH
13 #include "music-iterator.hh"
15 class Simultaneous_music_iterator : public Music_iterator
18 VIRTUAL_COPY_CONS (Music_iterator);
19 Simultaneous_music_iterator ();
20 Simultaneous_music_iterator (Simultaneous_music_iterator const&);
21 virtual void derived_mark () const;
22 DECLARE_SCHEME_CALLBACK(constructor, ());
24 /// make a new context for every child.
25 bool separate_contexts_b_;
27 virtual void construct_children ();
28 virtual Moment pending_moment () const;
29 virtual void do_quit();
30 virtual bool ok () const;
31 virtual SCM get_pending_events (Moment)const;
32 virtual void skip (Moment);
35 virtual void process (Moment);
36 virtual Music_iterator *try_music_in_children (Music *) const;
42 #endif // SIMULTANEOUS_MUSIC_ITERATOR_HH