X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fgrid-line-interface.hh;h=9fd1caddd53d3d3a8da5f177551592cd25670837;hb=81abebcfecdb22d2e7b6b8e2a6d9f758aa45a13a;hp=fc789eea2ed3e154ab4f70eb84dead6c37ece712;hpb=75eebcb49e52d296b1da3e1074e0825d2c780db4;p=lilypond.git

diff --git a/lily/include/grid-line-interface.hh b/lily/include/grid-line-interface.hh
index fc789eea2e..9fd1caddd5 100644
--- a/lily/include/grid-line-interface.hh
+++ b/lily/include/grid-line-interface.hh
@@ -3,14 +3,15 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #ifndef GRID_LINE_INTERFACE_HH
 #define GRID_LINE_INTERFACE_HH
 
 #include "lily-proto.hh"
-#include "lily-guile.hh"
+#include "grob-interface.hh"
+
 
 class Grid_line_interface
 {
@@ -18,13 +19,13 @@ public:
   static void add_grid_point (Grob *me, Grob *b);
   DECLARE_SCHEME_CALLBACK (print, (SCM));
   DECLARE_SCHEME_CALLBACK (width, (SCM));
-  static bool has_interface (Grob *);
+  DECLARE_GROB_INTERFACE();
 };
 
 class Grid_point_interface
 {
 public:
-  static bool has_interface (Grob *);
+  DECLARE_GROB_INTERFACE();
 };
 
 #endif /* GRID_LINE_INTERFACE_HH */