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1 /*
2   simultaneous-music-iterator.hh -- declare Simultaneous_music_iterator
3
4   source file of the GNU LilyPond music typesetter
5
6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 */
8
9
10 #ifndef SIMULTANEOUS_MUSIC_ITERATOR_HH
11 #define SIMULTANEOUS_MUSIC_ITERATOR_HH
12
13 #include "music-list-iterator.hh"
14
15 class Simultaneous_music_iterator : public Music_list_iterator
16 {
17 public:
18   Simultaneous_music_iterator ();
19   virtual ~Simultaneous_music_iterator ();
20
21   virtual void construct_children ();
22   virtual Moment next_moment () const;
23   virtual bool ok () const;
24
25 protected:
26   virtual void do_print () const;
27   virtual void do_process_and_next (Moment);
28
29 private:
30   Pointer_list<Music_iterator*> children_p_list_;
31 };
32
33 #endif // SIMULTANEOUS_MUSIC_ITERATOR_HH