X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fstaff-symbol-referencer.hh;h=64d41014d70ae28a6041e940a0b124338f125a2a;hb=0dcde4fc13c8091439fb8e2d77ea755357a0e7ed;hp=29a46e6d8aec7ed2c4e2ca1186551954b49ef90f;hpb=a6a4b3fc2009f17a1a48cca0c11bfd3f38645937;p=lilypond.git

diff --git a/lily/include/staff-symbol-referencer.hh b/lily/include/staff-symbol-referencer.hh
index 29a46e6d8a..64d41014d7 100644
--- a/lily/include/staff-symbol-referencer.hh
+++ b/lily/include/staff-symbol-referencer.hh
@@ -1,9 +1,20 @@
 /*
-  staff-sym-referencer.hh -- declare staff_symbol_referencer
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #ifndef STAFF_SYMBOL_REFERENCER_HH
@@ -19,9 +30,9 @@
 class Staff_symbol_referencer
 {
 public:
-  DECLARE_GROB_INTERFACE();
   static bool ugly_hack (Grob *);
   static void set_position (Grob *, Real);
+  static void pure_set_position (Grob *, Real);
   DECLARE_SCHEME_CALLBACK (callback, (SCM element));
 
   /**
@@ -35,12 +46,29 @@ public:
   static bool on_staff_line (Grob *, int);
   static int line_count (Grob *);
   static Real get_position (Grob *);
+  static Real pure_get_position (Grob *);
+
+  /**
+     Interval of staff lines.
+  */
+  static Interval staff_span (Grob *);
+
+  /**
+     Half of the height, in staff space, i.e. 2.0 for a normal staff.
+  */
   static Real staff_radius (Grob *);
+
   static int get_rounded_position (Grob *);
-  static Interval extent_in_staff (Grob *); 
+  static int pure_get_rounded_position (Grob *);
+  static Interval extent_in_staff (Grob *);
+
+private:
+  static void internal_set_position (Grob *, Real, bool);
+  static Real internal_get_position (Grob *, bool);
 };
 
-int compare_position (Grob *const &, Grob *const &);\
+int compare_position (Grob *const &, Grob *const &);
 bool position_less (Grob *const &, Grob *const &);
+bool pure_position_less (Grob *const &, Grob *const &);
 #endif /* STAFF_SYMBOL_REFERENCER_HH */