From 884c9222babfc955e03f06ee91b87a3e584a5816 Mon Sep 17 00:00:00 2001
From: Tobias Doerffel <tobias.doerffel@gmail.com>
Date: Mon, 30 Jun 2008 16:54:54 +0000
Subject: [PATCH] in automationPattern::valueAt() check whether the time-map is
 empty

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1236 0778d3d1-df1d-0410-868b-ea421aaaa00d
---
 src/core/automation_pattern.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/automation_pattern.cpp b/src/core/automation_pattern.cpp
index 3408423d0..325f3f892 100644
--- a/src/core/automation_pattern.cpp
+++ b/src/core/automation_pattern.cpp
@@ -218,6 +218,10 @@ void automationPattern::openInAutomationEditor( void )
 
 float automationPattern::valueAt( const midiTime & _time )
 {
+	if( m_timeMap.isEmpty() )
+	{
+		return( 0 );
+	}
 	timeMap::const_iterator v = m_timeMap.lowerBound( _time );
 	return( ( v != m_timeMap.end() ) ? v.value() : (v-1).value() );
 }