X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fgroup-interface.hh;h=a3abca8b55d1d99be1f91529fb8eb94dae73fadb;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=fc832a5426096ea626327977638eeb79eccf4db2;hpb=163503e56aa0c03d41d37fd083bdb96a6a473a11;p=lilypond.git

diff --git a/lily/include/group-interface.hh b/lily/include/group-interface.hh
index fc832a5426..a3abca8b55 100644
--- a/lily/include/group-interface.hh
+++ b/lily/include/group-interface.hh
@@ -1,57 +1,41 @@
-/*   
-  group-interface.hh -- declare Group_interface
-  
-  source file of the GNU LilyPond music typesetter
-  
-  (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+/*
+  This file is part of LilyPond, the GNU music typesetter.
 
-#ifndef GROUP_INTERFACE_HH
-#define GROUP_INTERFACE_HH
+  Copyright (C) 1999--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-#include "lily-proto.hh"
-#include "string.hh"
-#include "lily-guile.hh"
-#include "smobs.hh"
+  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.
 
-struct Group_interface
-{
-  Score_element * elt_l_;
-  String name_;
-public:
-  Group_interface (Score_element const*);
-  Group_interface (Score_element const*, String);
-  int count ();
-  bool has_interface_b ();
-  void set_interface ();
-  void add_element (Score_element*);
-};
+  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.
 
-/*
-  template<class T>
-  Link_array<T> Group_interface__extract_elements (T *, String name);
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
-template<class T>
-Link_array<T>
-Group_interface__extract_elements (Score_element const *elt, T *, String name)
-{
-  Link_array<T> arr;
 
-  for (SCM s = elt->get_elt_property (name); gh_pair_p (s); s = gh_cdr (s))
-    {
-      SCM e = gh_car (s);
-      assert (SMOB_IS_TYPE_B(Score_element,e));
-      Score_element* se = SMOB_TO_TYPE(Score_element, e);
-      arr.push (dynamic_cast<T*> (se));
-    }
-
-  arr.reverse ();
-  return arr;
-}
+#ifndef GROUP_INTERFACE_HH
+#define GROUP_INTERFACE_HH
 
+#include "grob.hh"
+#include "std-string.hh"
+/**
+   Look at Score element ELT as thing which has a list property called
+   NAME_. Normally the list would contain Grobs, but
+   sometimes it can be different things.
 
+   todo: reename as list_interface?
+*/
 
+struct Group_interface
+{
+public:
+  static int count (Grob *, SCM);
+  static void add_thing (Grob *, SCM, SCM);
+};
 
 #endif /* GROUP_INTERFACE_HH */