when connected to controller and returning current value, respect step-property of automatableModel

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1447 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/automatable_model.h

@@ -118,10 +118,15 @@ public:
 	{
 		if( m_controllerConnection != NULL )
 		{
-			return minValue<T>() +
+			const float v = minValue<T>() +
 				castValue<T>( m_range * 
 					 m_controllerConnection->currentValue(
 							_frameOffset ) );
+			if( m_step != 0 )
+			{
+				return( roundf( v / m_step ) * m_step );
+			}
+			return( v );
 		}
 
 		return castValue<T>( m_value );