From: Mike Solomon <mike@apollinemike.com>
Date: Thu, 12 May 2011 23:28:24 +0000 (-0400)
Subject: Fixes the assert problem caused by ledger line spanners.
X-Git-Tag: release/2.13.63-1~11
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=2af79ed9faa94c8a289d0dbde9cc936bb51103f0;p=lilypond.git

Fixes the assert problem caused by ledger line spanners.

This fix makes it such that ledger lines are not printed when
there is a no-line staff symbol.  This makes sense, as a note
cannot be above or below the staff if the staff does not exist,
which means that ledger lines should not be used.
---

diff --git a/lily/ledger-line-spanner.cc b/lily/ledger-line-spanner.cc
index 49ff711911..a518bc9225 100644
--- a/lily/ledger-line-spanner.cc
+++ b/lily/ledger-line-spanner.cc
@@ -320,7 +320,7 @@ Ledger_line_spanner::print (SCM smob)
       Item *h = dynamic_cast<Item *> (heads[i]);
 
       int pos = Staff_symbol_referencer::get_rounded_position (h);
-      if (!staff_extent.contains (pos - sign (pos)))
+      if (!staff_extent.contains (pos - sign (pos)) && !staff_extent.is_empty ())
 	{
 	  Interval head_size = h->extent (common[X_AXIS], X_AXIS);
 	  Interval ledger_size = head_size;