2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef STAFF_SYMBOL_REFERENCER_HH
21 #define STAFF_SYMBOL_REFERENCER_HH
23 #include "grob-interface.hh"
24 #include "lily-proto.hh"
27 A notation object that needs access to variables of the staff (no
30 class Staff_symbol_referencer
33 static bool ugly_hack (Grob *);
34 static void set_position (Grob *, Real);
35 static void pure_set_position (Grob *, Real);
36 DECLARE_SCHEME_CALLBACK (callback, (SCM element));
39 Leading are the lead strips between the sticks (lines) of
40 typeface. ie. leading is vertical space.
42 static Real line_thickness (Grob *);
43 static Real staff_space (Grob *);
44 static Grob *get_staff_symbol (Grob *);
45 static bool on_line (Grob *, int);
46 static bool on_staff_line (Grob *, int);
47 static int line_count (Grob *);
48 static Real get_position (Grob *);
49 static Real pure_get_position (Grob *);
52 Interval of staff lines.
54 static Interval staff_span (Grob *);
57 Half of the height, in staff space, i.e. 2.0 for a normal staff.
59 static Real staff_radius (Grob *);
61 static int get_rounded_position (Grob *);
62 static int pure_get_rounded_position (Grob *);
63 static Interval extent_in_staff (Grob *);
66 static void internal_set_position (Grob *, Real, bool);
67 static Real internal_get_position (Grob *, bool);
70 int compare_position (Grob *const &, Grob *const &);
71 bool position_less (Grob *const &, Grob *const &);
72 bool pure_position_less (Grob *const &, Grob *const &);
73 #endif /* STAFF_SYMBOL_REFERENCER_HH */