]> git.donarmstrong.com Git - lilypond.git/blob - lily/include/folded-repeat-iterator.hh
* lily/lily-guile.cc (robust_scm2double): new function. Use throughout.
[lilypond.git] / lily / include / folded-repeat-iterator.hh
1 /*   
2   folded-repeat-iterator.hh -- declare Folded_repeat_iterator
3   
4   source file of the GNU LilyPond music typesetter
5   
6   (c)  1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7   
8  */
9
10 #ifndef FOLDED_REPEAT_ITERATOR_HH
11 #define FOLDED_REPEAT_ITERATOR_HH
12
13 #include "music-iterator.hh"
14
15 /**
16    Iterate through a repeated section: first do the body, then
17    all alternatives in parallel.
18  */
19 class Folded_repeat_iterator : public Music_iterator
20 {
21 public:
22   VIRTUAL_COPY_CONS (Music_iterator);
23   DECLARE_SCHEME_CALLBACK(constructor, ());
24
25   Folded_repeat_iterator (Folded_repeat_iterator const &src);
26   Folded_repeat_iterator ();
27   virtual void derived_mark () const;
28   virtual void construct_children ();
29   virtual Moment pending_moment () const;
30   virtual void do_quit(); 
31   virtual bool ok () const;
32
33 protected:
34   void enter_alternative ();
35   void leave_body ();
36   
37   virtual void process (Moment);
38   virtual Music_iterator *try_music_in_children (Music *) const;
39
40 private:
41   Music_iterator * main_iter_;
42   Music_iterator * alternative_iter_;
43
44   Moment main_length_mom_;
45 };
46 #endif /* FOLDED_REPEAT_ITERATOR_HH */
47