2 simultaneous-music-iterator.hh -- declare Simultaneous_music_iterator
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #ifndef SIMULTANEOUS_MUSIC_ITERATOR_HH
10 #define SIMULTANEOUS_MUSIC_ITERATOR_HH
12 #include "music-iterator.hh"
14 class Simultaneous_music_iterator : public Music_iterator
17 Simultaneous_music_iterator ();
18 Simultaneous_music_iterator (Simultaneous_music_iterator const &);
19 virtual void derived_substitute (Context *f, Context *t);
20 virtual void derived_mark () const;
21 DECLARE_SCHEME_CALLBACK (constructor, ());
22 DECLARE_CLASSNAME(Simultaneous_music_iterator);
24 /// make a new context for every child.
25 bool create_separate_contexts_;
27 virtual void construct_children ();
28 virtual Moment pending_moment () const;
29 virtual void do_quit ();
30 virtual bool ok () const;
31 virtual bool run_always () const;
34 virtual void process (Moment);
40 #endif // SIMULTANEOUS_MUSIC_ITERATOR_HH