X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fgrob.cc;h=fbb4683f4a7f2173c1d9e70b2afe7d86db73cd20;hb=7f30590b4e9d2e2e2da747a65258f14279f610e1;hp=13d2e8961583918b59020f2bf5f33f274a9eb1aa;hpb=ade2bb7da653fbd9d670590afd67376fe69c59dd;p=lilypond.git

diff --git a/lily/grob.cc b/lily/grob.cc
index 13d2e89615..fbb4683f4a 100644
--- a/lily/grob.cc
+++ b/lily/grob.cc
@@ -288,16 +288,23 @@ Grob::pure_relative_y_coordinate (Grob const *refp, int start, int end)
   Real off = 0;
 
   if (dim_cache_[Y_AXIS].offset_)
-    off = *dim_cache_[Y_AXIS].offset_;
+    {
+      if (to_boolean (get_property ("pure-Y-offset-in-progress")))
+	programming_error ("cyclic chain in pure-Y-offset callbacks");
+
+      off = *dim_cache_[Y_AXIS].offset_;
+    }
   else
     {
       SCM proc = get_property_data ("Y-offset");
 
       dim_cache_[Y_AXIS].offset_ = new Real (0.0);
+      set_property ("pure-Y-offset-in-progress", SCM_BOOL_T);
       off = robust_scm2double (call_pure_function (proc,
 						   scm_list_1 (self_scm ()),
 						   start, end),
 			       0.0);
+      del_property ("pure-Y-offset-in-progress");
       delete dim_cache_[Y_AXIS].offset_;
       dim_cache_[Y_AXIS].offset_ = 0;
     }
@@ -433,7 +440,8 @@ Grob::pure_height (Grob *refp, int start, int end)
   if (!iv.is_empty () && is_number_pair (min_ext))
     iv.unite (ly_scm2interval (min_ext));
 
-  iv.translate (offset);
+  if (!iv.is_empty ())
+    iv.translate (offset);
   return iv;
 }
 
@@ -446,7 +454,7 @@ Grob::maybe_pure_extent (Grob *refp, Axis a, bool pure, int start, int end)
 }
 
 Interval_t<int>
-Grob::spanned_rank_iv () const
+Grob::spanned_rank_interval () const
 {
   return Interval_t<int> (-1, 0);
 }
@@ -613,6 +621,7 @@ ADD_INTERFACE (Grob,
 	       "before-line-breaking "
 	       "cause "
 	       "color "
+	       "cross-staff "
 	       "extra-X-extent "
 	       "extra-Y-extent "
 	       "extra-offset "
@@ -624,6 +633,7 @@ ADD_INTERFACE (Grob,
 	       "outside-staff-horizontal-padding "
 	       "outside-staff-padding "
 	       "outside-staff-priority "
+	       "pure-Y-offset-in-progress "
 	       "rotation "
 	       "springs-and-rods "
 	       "staff-symbol "