Initial lb303 (no compat), fixed auto-detect, fix knob drawing

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1298 0778d3d1-df1d-0410-868b-ea421aaaa00d

src/gui/controller_connection_dialog.cpp

@@ -66,8 +66,9 @@ public:
 
 
 	virtual void processInEvent( const midiEvent & _me,
-					const midiTime & _time, bool _lock )
+					const midiTime & _time )
 	{
+		printf("ho hum\n");
 		if( _me.m_type == MidiControlChange &&
 			( m_midiPort.inputChannel() == _me.m_channel + 1 ||
 				m_midiPort.inputChannel() == 0 ) )

src/gui/widgets/knob.cpp

@@ -278,7 +278,7 @@ bool knob::updateAngle( void )
 
 void knob::drawKnob( QPainter * _p )
 {
-	if( updateAngle() == FALSE )
+	if( updateAngle() == FALSE && !m_cache.isNull() )
 	{
 		_p->drawImage( 0, 0, m_cache );
 		return;