2 simultaneous-music-iterator.hh -- declare Simultaneous_music_iterator
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef SIMULTANEOUS_MUSIC_ITERATOR_HH
11 #define SIMULTANEOUS_MUSIC_ITERATOR_HH
13 #include "music-iterator.hh"
16 class Simultaneous_music_iterator : public Music_iterator
19 VIRTUAL_COPY_CONS (Music_iterator);
20 Simultaneous_music_iterator ();
21 Simultaneous_music_iterator (Simultaneous_music_iterator const&);
22 virtual ~Simultaneous_music_iterator ();
23 static SCM constructor_cxx_function;
25 /// make a new context for every child.
26 bool separate_contexts_b_;
29 virtual void construct_children ();
30 virtual Moment pending_moment () const;
31 virtual bool ok () const;
32 virtual SCM get_music (Moment)const;
33 virtual void skip (Moment);
36 virtual void process (Moment);
37 virtual Music_iterator *try_music_in_children (Music *) const;
40 Cons_list<Music_iterator> children_p_list_;
43 #endif // SIMULTANEOUS_MUSIC_ITERATOR_HH