Select key for MidiControlListener in setup dialog via pianoView widget.

Introduces a new class, DummyMidiEventProcessor, that does nothing but
update the baseNoteModel upon keypress.

Signed-off-by: Tobias Doerffel <tobias.doerffel@gmail.com>

include/dummy_midi_event_processor.h

@@ -0,0 +1,70 @@
+/*
+ * dummy_midi_event_processor.h - implementation of a MidiEventProcessor that
+ *                                does nothing besides updating the baseNoteModel.
+ *
+ * Copyright (c) 2009 Achim Settelmeier <lmms/at/m1.sirlab.de>
+ * 
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#ifndef _DUMMY_MIDI_EVENT_PROCESSOR_H
+#define _DUMMY_MIDI_EVENT_PROCESSOR_H
+
+#include "midi_event_processor.h"
+
+// all classes being able to process MIDI-events should inherit from this
+class DummyMidiEventProcessor : public MidiEventProcessor
+{
+public:
+	inline DummyMidiEventProcessor() :
+		MidiEventProcessor(),
+		m_updateBaseNote( false )
+	{
+	};
+	
+	virtual inline ~DummyMidiEventProcessor()
+	{
+	};
+
+	inline void setUpdateBaseNote( bool _updateBaseNote )
+	{
+		m_updateBaseNote = _updateBaseNote;
+	}
+
+	virtual void processInEvent( const midiEvent & _me,
+				    const midiTime & _time )
+	{
+		if( m_updateBaseNote )
+		{
+			baseNoteModel()->setValue( _me.key() );
+		}
+	};
+
+	virtual void processOutEvent( const midiEvent & _me,
+				     const midiTime & _time )
+	{
+		// nop
+	};
+
+private:
+	bool m_updateBaseNote;
+} ;
+
+#endif

include/setup_dialog_mcl.h

@@ -28,6 +28,9 @@
 
 #include <QtGui/QDialog>
 
+#include "dummy_midi_event_processor.h"
+#include "piano.h"
+
 class setupDialog;
 
 class setupDialogMCL : public QDialog
@@ -55,6 +58,9 @@ private:
 	QComboBox * m_actionsKeyBox;
 	QComboBox * m_actionsControllerBox;
 	lcdSpinBoxModel * m_controllerSbModel;
+	
+	DummyMidiEventProcessor m_mep;
+	Piano m_pianoModel;
 } ;