Player: set note and octave atomically

qml/PlayerScreen.qml

@@ -111,9 +111,11 @@ Item {
 			//octave: tuner.octave
 
 			onReleased: {
-				note = tuner.note = index % 12
-				octave = tuner.octave = index / 12
-				toise_octave.index = tuner.octave
+				note = index % 12
+				octave = index / 12
+				toise_octave.index = octave
+				// set octave and note atomically
+				tuner.SetNoteOctave(note, octave)
 				toise_octave.updateFlickable()
 			}
 		}

src/Tuner.cpp

@@ -104,6 +104,14 @@ void Tuner::SetNote(int note)
 	emit resultChanged();
 }
 
+void Tuner::SetNoteOctave(int note, int octave)
+{
+	result.note = note;
+	result.octave = octave;
+	worker->SetNoteOctave(note, octave);
+	emit resultChanged();
+}
+
 double Tuner::GetDeviation()
 {
 	return result.deviation;

src/Tuner.hpp

@@ -71,6 +71,7 @@ class Tuner : public QObject {
 	// slots from worker
 	void ResultUpdated(const PitchDetection::PitchResult &result);
 	void TemperamentListUpdated(const QStringList &list);
+	void SetNoteOctave(int note, int octave);
 
 	signals:
 	// signals to UI

src/TunerWorker.cpp

@@ -134,7 +134,6 @@ void TunerWorker::SetNote(int note)
 	mutex.unlock();
 }
 
-
 void TunerWorker::SetOctave(int octave)
 {
 	mutex.lock();
@@ -142,6 +141,14 @@ void TunerWorker::SetOctave(int octave)
 	mutex.unlock();
 }
 
+void TunerWorker::SetNoteOctave(int note, int octave)
+{
+	mutex.lock();
+	note_to_update = note;
+	octave_to_update = octave;
+	mutex.unlock();
+}
+
 void TunerWorker::Entry()
 {
 	cerr << __func__ << endl;

src/TunerWorker.hpp

@@ -67,6 +67,7 @@ class TunerWorker : public QObject {
 	void SetOctave(int octave);
 	void Entry();
 	void Quit();
+	void SetNoteOctave(int note, int octave);
 
 	/// write a file with raw audio
 	static void set_record(const char *filename_record);