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[lilypond.git] / lily / include / key-performer.hh
1 /*
2   key-performer.hh -- declare Key_performer
3
4   source file of the GNU LilyPond music typesetter
5
6   (c)  1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
7 */
8
9 #ifndef KEY_PERFOMER_HH
10 #define KEY_PERFOMER_HH
11
12 #include "lily-proto.hh"
13 #include "performer.hh"
14
15 class Key_performer : public Performer {
16 public:
17   TRANSLATOR_CLONE(Key_performer);
18   DECLARE_MY_RUNTIME_TYPEINFO;
19   Key_performer();
20   ~Key_performer();
21
22 protected:
23   void do_print() const;
24   virtual bool do_try_request (Request* req_l);
25   virtual void do_process_requests();
26
27 private:
28   Key_change_req* key_req_l_;
29 };
30
31 #endif // KEY_PERFOMER_HH