X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fslur.cc;h=2bc0ea072c9909ac2da9f10837aeccea648f4788;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=3d47e876fc07ce0c18d21803f0ce2840f3f52ae5;hpb=6fb6249345ce846c8c55f843b21c6e85024a720b;p=lilypond.git

diff --git a/lily/slur.cc b/lily/slur.cc
index 3d47e876fc..2bc0ea072c 100644
--- a/lily/slur.cc
+++ b/lily/slur.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1996--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1996--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
@@ -308,11 +308,13 @@ Slur::outside_slur_callback (SCM grob, SCM offset_scm)
     }
 
   Real avoidance_offset = 0.0;
-  for (int d = LEFT, k = 0; d <= RIGHT; d++, k++)
-    if (consider[k]) 
-      avoidance_offset = dir * (max (dir * avoidance_offset,
-				     dir * (ys[k] - yext[-dir] + dir * slur_padding)));
-  
+  if (do_shift)
+    {
+      for (int d = LEFT, k = 0; d <= RIGHT; d++, k++)
+	if (consider[k])
+	  avoidance_offset = dir * (max (dir * avoidance_offset,
+					 dir * (ys[k] - yext[-dir] + dir * slur_padding)));
+    }
   return scm_from_double (offset + avoidance_offset);
 }
 
@@ -349,6 +351,7 @@ Slur::auxiliary_acknowledge_extra_object (Grob_info const &info,
       if (slur)
 	{
 	  chain_offset_callback (e, outside_slur_callback_proc, Y_AXIS);
+	  chain_callback (e, outside_slur_cross_staff_proc, ly_symbol2scm("cross-staff"));
 	  e->set_object ("slur", slur->self_scm ());
 	}
     }
@@ -357,6 +360,27 @@ Slur::auxiliary_acknowledge_extra_object (Grob_info const &info,
 		    e->name().c_str ()));
 }
 
+/*
+  A callback that will be chained together with the original cross-staff
+  value of a grob that is placed 'outside or 'around a slur. This just says
+  that any grob becomes cross-staff if it is placed 'outside or 'around a
+  cross-staff slur.
+*/
+MAKE_SCHEME_CALLBACK (Slur, outside_slur_cross_staff, 2)
+SCM
+Slur::outside_slur_cross_staff (SCM smob, SCM previous)
+{
+  if (previous == SCM_BOOL_T)
+    return previous;
+
+  Grob *me = unsmob_grob (smob);
+  Grob *slur = unsmob_grob (me->get_object ("slur"));
+
+  if (!slur)
+    return SCM_BOOL_F;
+  return slur->get_property ("cross-staff");
+}
+
 MAKE_SCHEME_CALLBACK (Slur, calc_cross_staff, 1)
 SCM
 Slur::calc_cross_staff (SCM smob)