2 side-position-interface.hh -- declare Side_position_interface
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #ifndef SIDE_POSITION_INTERFACE_HH
10 #define SIDE_POSITION_INTERFACE_HH
12 #include "grob-interface.hh"
13 #include "lily-proto.hh"
16 TODO: move out unrelated callbacks.
18 TODO: reduce number of methods.
20 struct Side_position_interface
24 DECLARE_SCHEME_CALLBACK (y_aligned_on_support_refpoints, (SCM element));
25 DECLARE_SCHEME_CALLBACK (pure_y_aligned_on_support_refpoints, (SCM element, SCM start, SCM end));
26 DECLARE_SCHEME_CALLBACK (x_aligned_side, (SCM element, SCM current));
27 DECLARE_SCHEME_CALLBACK (y_aligned_side, (SCM element, SCM current));
28 DECLARE_SCHEME_CALLBACK (pure_y_aligned_side, (SCM element, SCM start, SCM end, SCM current));
29 DECLARE_SCHEME_CALLBACK (calc_cross_staff, (SCM element));
31 static SCM aligned_side (Grob*me, Axis a, bool pure, int start, int end, Real *current_off_ptr);
33 static SCM general_side_position (Grob *, Axis, bool, bool my_extents,
34 bool pure, int start, int end, Real *current_off);
35 static Axis get_axis (Grob *);
36 static void set_axis (Grob *, Axis);
37 DECLARE_GROB_INTERFACE();
38 static void add_support (Grob *, Grob *);
39 static void add_staff_support (Grob *);
40 static Direction get_direction (Grob *);
43 #endif /* SIDE_POSITION_INTERFACE_HH */