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1 /*   
2   part-combine-music-iterator.hh -- declare Part_combine_music_iterator
3   
4   source file of the GNU LilyPond music typesetter
5
6   (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
7   
8  */
9
10 #ifndef PART_COMBINE_MUSIC_ITERATOR_HH
11 #define PART_COMBINE_MUSIC_ITERATOR_HH
12
13 #include "music-iterator.hh"
14
15 class Part_combine_music_iterator : public Music_iterator
16 {
17 public:
18   Part_combine_music_iterator ();
19
20 protected:
21   virtual void construct_children ();
22   virtual Moment next_moment () const;
23   virtual void do_process_and_next (Moment);
24   virtual Music_iterator *try_music_in_children (Music *) const;
25
26   virtual bool ok () const;
27   virtual void do_print () const;
28   virtual ~Part_combine_music_iterator ();
29
30 private:
31   void change_to (Music_iterator*, String, String);
32
33   Music_iterator * first_iter_p_;
34   Music_iterator * second_iter_p_;
35
36   bool combined_b_;
37 };
38
39 #endif /* PART_COMBINE_MUSIC_ITERATOR_HH */
40