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1 /*   
2   grace-performer-group.hh -- declare Grace_performer_group
3   
4   source file of the GNU LilyPond music typesetter
5   
6    (c) 1999--2000 Jan Nieuwenhuizen <janneke@gnu.org>
7   
8  */
9
10 #ifndef GRACE_PERFORMER_GROUP_HH
11 #define GRACE_PERFORMER_GROUP_HH
12
13 #include "performer-group-performer.hh"
14 #include "global-translator.hh"
15
16 class Grace_performer_group : public Performer_group_performer, public Global_translator
17 {
18   Link_array<Audio_element> play_us_;
19   Array<Audio_element_info> announce_to_top_;
20   bool calling_self_b_;
21 public:
22   VIRTUAL_COPY_CONS(Translator);
23   Grace_performer_group ();
24 protected:
25   virtual void announce_element (Audio_element_info);
26   virtual void start ();
27   virtual void finish ();
28   virtual void process ();
29   virtual void each (Method_pointer);
30   virtual void finalize () ;
31   virtual void play_element (Audio_element*);
32   virtual bool try_music (Music *m);
33 };
34
35
36 #endif /* GRACE_PERFORMER_GROUP_HH */