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1 /*   
2   directional-element.hh -- declare Directional_element
3   
4   source file of the GNU LilyPond music typesetter
5   
6   (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7   
8  */
9
10 #ifndef DIRECTIONAL_ELEMENT_HH
11 #define DIRECTIONAL_ELEMENT_HH
12
13 #include "score-element.hh"
14
15 struct Directional_element_interface 
16 {
17   
18 public:
19   Score_element *elt_l_;
20   
21   Directional_element_interface (Score_element const *);
22   void set  (Direction d);
23   Direction get () const;
24   bool has_interface_b () const;
25   // bool set_interface ();
26 };
27
28
29 #endif /* DIRECTIONAL_ELEMENT_HH */
30