fixed behaviour for inline-automations with only one value in time-map

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1329 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/detuning_helper.h

@@ -42,6 +42,11 @@ public:
 	{
 	}
 
+	virtual float defaultValue( void ) const
+	{
+		return( 0 );
+	}
+
 	virtual QString displayName( void ) const
 	{
 		return( tr( "Note detuning" ) );

include/inline_automation.h

@@ -48,10 +48,12 @@ public:
 		}
 	}
 
+	virtual float defaultValue( void ) const = 0;
+
 	inline bool hasAutomation( void ) const
 	{
 		return( m_autoPattern != NULL &&
-					m_autoPattern->hasAutomation() );
+			m_autoPattern->getTimeMap()[0] != defaultValue() );
 	}
 
 	automationPattern * getAutomationPattern( void )