X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fline-spanner.cc;h=84c43ccf81ef34e80913c1d298e1511321e17982;hb=97a0169312a260933246ab224e4f8b0969871dd5;hp=be20f25d98fb0a824030cb48ecd4faa77bfa3974;hpb=0c14539bc83d6bb405141b6f21430b33d1e8fcf0;p=lilypond.git

diff --git a/lily/line-spanner.cc b/lily/line-spanner.cc
index be20f25d98..84c43ccf81 100644
--- a/lily/line-spanner.cc
+++ b/lily/line-spanner.cc
@@ -43,12 +43,11 @@ public:
   DECLARE_SCHEME_CALLBACK (calc_left_bound_info_and_text, (SCM));
   DECLARE_SCHEME_CALLBACK (calc_right_bound_info, (SCM));
   DECLARE_SCHEME_CALLBACK (calc_bound_info, (SCM, Direction));
-  DECLARE_GROB_INTERFACE ();
 };
 
 Spanner *parent_spanner (Grob *g)
 {
-  if (Spanner::has_interface (g))
+  if (has_interface<Spanner> (g))
     return dynamic_cast<Spanner *> (g);
   return parent_spanner (g->get_parent (Y_AXIS));
 }
@@ -110,7 +109,7 @@ Line_spanner::calc_bound_info (SCM smob, Direction dir)
                          ? columns[0] : columns.back ();
         }
 
-      Real x_coord = (Paper_column::has_interface (bound_grob)
+      Real x_coord = (has_interface<Paper_column> (bound_grob)
                       ? Axis_group_interface::generic_bound_extent (bound_grob, commonx, X_AXIS)
                       : robust_relative_extent (bound_grob, commonx, X_AXIS)).linear_combination (attach);
 
@@ -169,7 +168,7 @@ Line_spanner::calc_bound_info (SCM smob, Direction dir)
                 VerticalAxisGroup of a staff) that extends over the break.
               */
               Spanner *next_bound_parent_on_this_line
-                = next_bound_parent->broken_neighbor (other_dir (dir));
+                = next_bound_parent->broken_neighbor (-dir);
 
               if (next_bound_parent_on_this_line)
                 {