From 2da5a512119ca9dda3a05e1c122daea5b17f9049 Mon Sep 17 00:00:00 2001
From: Keith OHara <k-ohara5a5a@oco.net>
Date: Wed, 8 Aug 2012 19:42:46 -0700
Subject: [PATCH] layout.cc: do not draw empty boxes

---
 lily/lookup.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lily/lookup.cc b/lily/lookup.cc
index 1acb34f783..e0117c1da1 100644
--- a/lily/lookup.cc
+++ b/lily/lookup.cc
@@ -174,6 +174,9 @@ Lookup::round_filled_box (Box b, Real blotdiameter)
   if (b.y ().length () < blotdiameter)
     blotdiameter = b.y ().length ();
 
+  if (b.x ().is_empty () || b.y ().is_empty ())
+    return Stencil (b, SCM_EOL);
+
   SCM at = (scm_list_n (ly_symbol2scm ("round-filled-box"),
                         scm_from_double (-b[X_AXIS][LEFT]),
                         scm_from_double (b[X_AXIS][RIGHT]),
-- 
2.39.5