X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fnote-column.cc;h=67d4f78e8a0f90caa18779ddcace4a0f33612585;hb=97084ed6551800309bb42a42e88fd693f6dee518;hp=b1c6b9f272204417ddf050f2ebd1a2a036068bb4;hpb=b80683cc94b0c22bbe3fccb94a9b2e23787fd10b;p=lilypond.git

diff --git a/lily/note-column.cc b/lily/note-column.cc
index b1c6b9f272..67d4f78e8a 100644
--- a/lily/note-column.cc
+++ b/lily/note-column.cc
@@ -195,13 +195,28 @@ Note_column::arpeggio (Grob *me)
   return unsmob_grob (me->get_object ("arpeggio"));
 }
 
+/* If a note-column contains a cross-staff stem then
+   nc->extent (Y_AXIS, refp) will not consider the extent of the stem.
+   If you want the extent of the stem to be included (and you are safe
+   from any cross-staff issues) then call this function instead. */
+Interval
+Note_column::cross_staff_extent (Grob *me, Grob *refp)
+{
+  Interval iv = me->extent (refp, Y_AXIS);
+  if (Grob *s = get_stem (me))
+    iv.unite (s->extent (refp, Y_AXIS));
+
+  return iv;
+}
+
 ADD_INTERFACE (Note_column,
-	       "Stem and noteheads combined",
+	       "Stem and noteheads combined.",
 
 	       /* properties */
 	       "arpeggio "
 	       "force-hshift "
 	       "horizontal-shift "
+	       "ignore-collision "
 	       "note-heads "
 	       "rest "
 	       "rest-collision "