X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fbeam-quanting.cc;h=ebda6eb256fe484354feb94add3a4a979932198f;hb=48c8ba6ff3dc9e22a3f0f7c94871c3508329010e;hp=695cb80b6eb2b8a950758b403b7e3bc3cb021507;hpb=474c8729dc274a30558102a015a01fa5882673db;p=lilypond.git

diff --git a/lily/beam-quanting.cc b/lily/beam-quanting.cc
index 695cb80b6e..ebda6eb256 100644
--- a/lily/beam-quanting.cc
+++ b/lily/beam-quanting.cc
@@ -160,10 +160,8 @@ Beam::quanting (SCM smob, SCM posns)
   Real xr = fvs ? lvs->relative_coordinate (common[X_AXIS], X_AXIS) : 0.0;
 
   /*
-    We store some info to quickly interpolate.
-
-    Sometimes my head is screwed on backwards.  The stemlength are
-    AFFINE linear in YL and YR. If YL == YR == 0, then we might have
+    We store some info to quickly interpolate.  The stemlength are
+    affine linear in YL and YR. If YL == YR == 0, then we might have
     stem_y != 0.0, when we're cross staff.
 
   */
@@ -179,17 +177,19 @@ Beam::quanting (SCM smob, SCM posns)
       bool f = to_boolean (s->get_property ("french-beaming"))
 	&& s != lvs && s != fvs;
 
-      base_lengths.push_back (calc_stem_y (me, s, common, xl, xr,
-				      Interval (0, 0), f) / ss);
-      stem_xposns.push_back (s->relative_coordinate (common[X_AXIS], X_AXIS));
-    }
+      if (Stem::is_normal_stem (s))
+	{
+	  base_lengths.push_back (calc_stem_y (me, s, common, xl, xr, CENTER, 
+					       Interval (0, 0), f) / ss);
+	}
+      else
+	{
+	  base_lengths.push_back (0);
+	}
 
-  bool xstaff = false;
-  if (lvs && fvs)
-    {
-      Grob *commony = fvs->common_refpoint (lvs, Y_AXIS);
-      xstaff = Align_interface::has_interface (commony);
+      stem_xposns.push_back (s->relative_coordinate (common[X_AXIS], X_AXIS));
     }
+  bool xstaff = Align_interface::has_interface (common[Y_AXIS]);
 
   Direction ldir = Direction (stem_infos[0].dir_);
   Direction rdir = Direction (stem_infos.back ().dir_);
@@ -348,7 +348,7 @@ Beam::score_stem_lengths (vector<Grob*> const &stems,
   for (vsize i = 0; i < stems.size (); i++)
     {
       Grob *s = stems[i];
-      if (Stem::is_invisible (s))
+      if (!Stem::is_normal_stem (s))
 	continue;
 
       Real x = stem_xs[i];
@@ -379,8 +379,7 @@ Beam::score_stem_lengths (vector<Grob*> const &stems,
   Direction d = DOWN;
   do
     score[d] /= max (count[d], 1);
-  while (flip (&d) != DOWN)
-    ;
+  while (flip (&d) != DOWN);
 
   return score[LEFT] + score[RIGHT];
 }