clang-tidy: Apply modernize-use-override everywhere (#6439)

... to mark overriding functions `override` instead of `virtual`.

include/AudioAlsa.h

@@ -69,7 +69,7 @@ public:
 
 public:
 	AudioAlsa( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioAlsa();
+	~AudioAlsa() override;
 
 	inline static QString name()
 	{

include/AudioAlsaSetupWidget.h

@@ -47,7 +47,7 @@ class AudioAlsaSetupWidget : public AudioDeviceSetupWidget
 
 public:
 	AudioAlsaSetupWidget( QWidget * _parent );
-	virtual ~AudioAlsaSetupWidget();
+	~AudioAlsaSetupWidget() override;
 
 	void saveSettings() override;
 

include/AudioDeviceSetupWidget.h

@@ -36,7 +36,7 @@ class AudioDeviceSetupWidget : public TabWidget
 public:
 	AudioDeviceSetupWidget( const QString & _caption, QWidget * _parent );
 
-	virtual ~AudioDeviceSetupWidget();
+	~AudioDeviceSetupWidget() override;
 
 	virtual void saveSettings() = 0;
 

include/AudioDummy.h

@@ -43,7 +43,7 @@ public:
 		_success_ful = true;
 	}
 
-	virtual ~AudioDummy()
+	~AudioDummy() override
 	{
 		stopProcessing();
 	}
@@ -62,7 +62,7 @@ public:
 		{
 		}
 
-		virtual ~setupWidget()
+		~setupWidget() override
 		{
 		}
 

include/AudioEngine.h

@@ -387,7 +387,7 @@ private:
 
 
 	AudioEngine( bool renderOnly );
-	virtual ~AudioEngine();
+	~AudioEngine() override;
 
 	void startProcessing(bool needsFifo = true);
 	void stopProcessing();

include/AudioEngineWorkerThread.h

@@ -78,7 +78,7 @@ public:
 
 
 	AudioEngineWorkerThread( AudioEngine* audioEngine );
-	virtual ~AudioEngineWorkerThread();
+	~AudioEngineWorkerThread() override;
 
 	virtual void quit();
 

include/AudioFileDevice.h

@@ -40,7 +40,7 @@ public:
 	AudioFileDevice(OutputSettings const & outputSettings,
 			const ch_cnt_t _channels, const QString & _file,
 			AudioEngine* audioEngine );
-	virtual ~AudioFileDevice();
+	~AudioFileDevice() override;
 
 	QString outputFile() const
 	{

include/AudioFileFlac.h

@@ -43,7 +43,7 @@ public:
 			AudioEngine* audioEngine
 	);
 
-	virtual ~AudioFileFlac();
+	~AudioFileFlac() override;
 
 	static AudioFileDevice* getInst(QString const& outputFilename,
 			OutputSettings const& outputSettings,
@@ -65,7 +65,7 @@ private:
 	SF_INFO  m_sfinfo;
 	SNDFILE* m_sf;
 
-	virtual void writeBuffer(surroundSampleFrame const* _ab,
+	void writeBuffer(surroundSampleFrame const* _ab,
 						fpp_t const frames,
 						float master_gain) override;
 

include/AudioFileMP3.h

@@ -45,7 +45,7 @@ public:
 			bool & successful,
 			const QString & _file,
 			AudioEngine* audioEngine );
-	virtual ~AudioFileMP3();
+	~AudioFileMP3() override;
 
 	static AudioFileDevice * getInst( const QString & outputFilename,
 					  OutputSettings const & outputSettings,
@@ -58,7 +58,7 @@ public:
 	}
 
 protected:
-	virtual void writeBuffer( const surroundSampleFrame * /* _buf*/,
+	void writeBuffer( const surroundSampleFrame * /* _buf*/,
 				  const fpp_t /*_frames*/,
 				  const float /*_master_gain*/ ) override;
 

include/AudioFileOgg.h

@@ -45,7 +45,7 @@ public:
 			bool & _success_ful,
 			const QString & _file,
 			AudioEngine* audioEngine );
-	virtual ~AudioFileOgg();
+	~AudioFileOgg() override;
 
 	static AudioFileDevice * getInst( const QString & outputFilename,
 					  OutputSettings const & outputSettings,
@@ -58,7 +58,7 @@ public:
 
 
 private:
-	virtual void writeBuffer( const surroundSampleFrame * _ab,
+	void writeBuffer( const surroundSampleFrame * _ab,
 						const fpp_t _frames,
 						const float _master_gain ) override;
 

include/AudioFileWave.h

@@ -42,7 +42,7 @@ public:
 			bool & successful,
 			const QString & file,
 			AudioEngine* audioEngine );
-	virtual ~AudioFileWave();
+	~AudioFileWave() override;
 
 	static AudioFileDevice * getInst( const QString & outputFilename,
 					  OutputSettings const & outputSettings,
@@ -56,7 +56,7 @@ public:
 
 
 private:
-	virtual void writeBuffer( const surroundSampleFrame * _ab,
+	void writeBuffer( const surroundSampleFrame * _ab,
 						const fpp_t _frames,
 						float _master_gain ) override;
 

include/AudioJack.h

@@ -58,7 +58,7 @@ class AudioJack : public QObject, public AudioDevice
 	Q_OBJECT
 public:
 	AudioJack( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioJack();
+	~AudioJack() override;
 
 	// this is to allow the jack midi connection to use the same jack client connection
 	// the jack callback is handled here, we call the midi client so that it can read
@@ -78,9 +78,9 @@ class setupWidget : public gui::AudioDeviceSetupWidget
 	{
 	public:
 		setupWidget( QWidget * _parent );
-		virtual ~setupWidget();
+		~setupWidget() override;
 
-		virtual void saveSettings();
+		void saveSettings() override;
 
 	private:
 		QLineEdit * m_clientName;
@@ -96,13 +96,13 @@ private slots:
 private:
 	bool initJackClient();
 
-	virtual void startProcessing();
-	virtual void stopProcessing();
-	virtual void applyQualitySettings();
+	void startProcessing() override;
+	void stopProcessing() override;
+	void applyQualitySettings() override;
 
-	virtual void registerPort( AudioPort * _port );
-	virtual void unregisterPort( AudioPort * _port );
-	virtual void renamePort( AudioPort * _port );
+	void registerPort( AudioPort * _port ) override;
+	void unregisterPort( AudioPort * _port ) override;
+	void renamePort( AudioPort * _port ) override;
 
 	int processCallback( jack_nframes_t _nframes, void * _udata );
 

include/AudioOss.h

@@ -51,7 +51,7 @@ class AudioOss : public QThread, public AudioDevice
 	Q_OBJECT
 public:
 	AudioOss( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioOss();
+	~AudioOss() override;
 
 	inline static QString name()
 	{
@@ -65,7 +65,7 @@ class setupWidget : public gui::AudioDeviceSetupWidget
 	{
 	public:
 		setupWidget( QWidget * _parent );
-		virtual ~setupWidget();
+		~setupWidget() override;
 
 		void saveSettings() override;
 

include/AudioPortAudio.h

@@ -77,7 +77,7 @@ class AudioPortAudio : public AudioDevice
 {
 public:
 	AudioPortAudio( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioPortAudio();
+	~AudioPortAudio() override;
 
 	inline static QString name()
 	{
@@ -94,10 +94,10 @@ public:
 	{
 	public:
 		setupWidget( QWidget * _parent );
-		virtual ~setupWidget();
+		~setupWidget() override;
 
-		virtual void saveSettings();
-		virtual void show();
+		void saveSettings() override;
+		void show() override;
 
 	private:
 		gui::ComboBox * m_backend;
@@ -107,9 +107,9 @@ public:
 	} ;
 
 private:
-	virtual void startProcessing();
-	virtual void stopProcessing();
-	virtual void applyQualitySettings();
+	void startProcessing() override;
+	void stopProcessing() override;
+	void applyQualitySettings() override;
 
 #ifdef PORTAUDIO_V19
 	static int _process_callback( const void *_inputBuffer, void * _outputBuffer,

include/AudioPulseAudio.h

@@ -52,7 +52,7 @@ class AudioPulseAudio : public QThread, public AudioDevice
 	Q_OBJECT
 public:
 	AudioPulseAudio( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioPulseAudio();
+	~AudioPulseAudio() override;
 
 	inline static QString name()
 	{
@@ -66,7 +66,7 @@ public:
 	{
 	public:
 		setupWidget( QWidget * _parent );
-		virtual ~setupWidget();
+		~setupWidget() override;
 
 		void saveSettings() override;
 

include/AudioSampleRecorder.h

@@ -41,14 +41,14 @@ class AudioSampleRecorder : public AudioDevice
 {
 public:
 	AudioSampleRecorder( const ch_cnt_t _channels, bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioSampleRecorder();
+	~AudioSampleRecorder() override;
 
 	f_cnt_t framesRecorded() const;
 	void createSampleBuffer( SampleBuffer** sampleBuffer );
 
 
 private:
-	virtual void writeBuffer( const surroundSampleFrame * _ab,
+	void writeBuffer( const surroundSampleFrame * _ab,
 						const fpp_t _frames,
 						const float _master_gain ) override;
 

include/AudioSdl.h

@@ -48,7 +48,7 @@ class AudioSdl : public AudioDevice
 {
 public:
 	AudioSdl( bool & _success_ful, AudioEngine* audioEngine );
-	virtual ~AudioSdl();
+	~AudioSdl() override;
 
 	inline static QString name()
 	{

include/AudioSndio.h

@@ -52,7 +52,7 @@ class AudioSndio : public QThread, public AudioDevice
 	Q_OBJECT
 public:
 	AudioSndio( bool & _success_ful, AudioEngine * _audioEngine );
-	virtual ~AudioSndio();
+	~AudioSndio() override;
 
 	inline static QString name( void )
 	{
@@ -63,7 +63,7 @@ public:
 	{
 	public:
 		setupWidget( QWidget * _parent );
-		virtual ~setupWidget();
+		~setupWidget() override;
 
 		void saveSettings( void ) override;
 

include/AutomatableButton.h

@@ -42,7 +42,7 @@ class LMMS_EXPORT AutomatableButton : public QPushButton, public BoolModelView
 public:
 	AutomatableButton( QWidget * _parent, const QString & _name
 			= QString() );
-	virtual ~AutomatableButton();
+	~AutomatableButton() override;
 
 	inline void setCheckable( bool _on )
 	{
@@ -87,7 +87,7 @@ class LMMS_EXPORT automatableButtonGroup : public QWidget, public IntModelView
 public:
 	automatableButtonGroup( QWidget * _parent, const QString & _name
 			= QString() );
-	virtual ~automatableButtonGroup();
+	~automatableButtonGroup() override;
 
 	void addButton( AutomatableButton * _btn );
 	void removeButton( AutomatableButton * _btn );

include/AutomatableModel.h

@@ -89,7 +89,7 @@ public:
 	};
 
 
-	virtual ~AutomatableModel();
+	~AutomatableModel() override;
 
 	// Implement those by using the MODEL_IS_VISITABLE macro
 	virtual void accept(ModelVisitor& v) = 0;

include/AutomatableModelView.h

@@ -39,7 +39,7 @@ class LMMS_EXPORT AutomatableModelView : public ModelView
 {
 public:
 	AutomatableModelView( Model* model, QWidget* _this );
-	virtual ~AutomatableModelView() = default;
+	~AutomatableModelView() override = default;
 
 	// some basic functions for convenience
 	AutomatableModel* modelUntyped()

include/AutomatableSlider.h

@@ -39,7 +39,7 @@ class AutomatableSlider : public QSlider, public IntModelView
 	Q_OBJECT
 public:
 	AutomatableSlider( QWidget * _parent, const QString & _name = QString() );
-	virtual ~AutomatableSlider();
+	~AutomatableSlider() override;
 
 	bool showStatus()
 	{

include/AutomationClip.h

@@ -65,7 +65,7 @@ public:
 
 	AutomationClip( AutomationTrack * _auto_track );
 	AutomationClip( const AutomationClip & _clip_to_copy );
-	virtual ~AutomationClip() = default;
+	~AutomationClip() override = default;
 
 	bool addObject( AutomatableModel * _obj, bool _search_dup = true );
 

include/AutomationClipView.h

@@ -45,7 +45,7 @@ class AutomationClipView : public ClipView
 
 public:
 	AutomationClipView( AutomationClip * _clip, TrackView * _parent );
-	virtual ~AutomationClipView();
+	~AutomationClipView() override;
 
 public slots:
 	/// Opens this view's clip in the global automation editor

include/AutomationEditor.h

@@ -167,7 +167,7 @@ private:
 
 	AutomationEditor();
 	AutomationEditor( const AutomationEditor & );
-	virtual ~AutomationEditor();
+	~AutomationEditor() override;
 
 	static QPixmap * s_toolDraw;
 	static QPixmap * s_toolErase;
@@ -255,7 +255,7 @@ class AutomationEditorWindow : public Editor
 	static const int INITIAL_HEIGHT = 480;
 public:
 	AutomationEditorWindow();
-	~AutomationEditorWindow();
+	~AutomationEditorWindow() override;
 
 	void setCurrentClip(AutomationClip* clip);
 	const AutomationClip* currentClip();

include/AutomationTrack.h

@@ -37,9 +37,9 @@ class AutomationTrack : public Track
 	Q_OBJECT
 public:
 	AutomationTrack( TrackContainer* tc, bool _hidden = false );
-	virtual ~AutomationTrack() = default;
+	~AutomationTrack() override = default;
 
-	virtual bool play( const TimePos & _start, const fpp_t _frames,
+	bool play( const TimePos & _start, const fpp_t _frames,
 						const f_cnt_t _frame_base, int _clip_num = -1 ) override;
 
 	QString nodeName() const override
@@ -50,7 +50,7 @@ public:
 	gui::TrackView * createView( gui::TrackContainerView* ) override;
 	Clip* createClip(const TimePos & pos) override;
 
-	virtual void saveTrackSpecificSettings( QDomDocument & _doc,
+	void saveTrackSpecificSettings( QDomDocument & _doc,
 							QDomElement & _parent ) override;
 	void loadTrackSpecificSettings( const QDomElement & _this ) override;
 

include/AutomationTrackView.h

@@ -41,7 +41,7 @@ class AutomationTrackView : public TrackView
 {
 public:
 	AutomationTrackView( AutomationTrack* at, TrackContainerView* tcv );
-	virtual ~AutomationTrackView() = default;
+	~AutomationTrackView() override = default;
 
 	void dragEnterEvent( QDragEnterEvent * _dee ) override;
 	void dropEvent( QDropEvent * _de ) override;

include/CPULoadWidget.h

@@ -43,7 +43,7 @@ class CPULoadWidget : public QWidget
 	Q_OBJECT
 public:
 	CPULoadWidget( QWidget * _parent );
-	virtual ~CPULoadWidget();
+	~CPULoadWidget() override;
 
 
 protected:

include/CaptionMenu.h

@@ -41,7 +41,7 @@ class LMMS_EXPORT CaptionMenu : public QMenu
 	Q_OBJECT
 public:
 	CaptionMenu( const QString & _title, QWidget * _parent = 0 );
-	virtual ~CaptionMenu();
+	~CaptionMenu() override;
 } ;
 
 

include/Clip.h

@@ -53,7 +53,7 @@ class LMMS_EXPORT Clip : public Model, public JournallingObject
 	mapPropertyFromModel(bool,isSolo,setSolo,m_soloModel);
 public:
 	Clip( Track * track );
-	virtual ~Clip();
+	~Clip() override;
 
 	inline Track * getTrack() const
 	{

include/ClipView.h

@@ -71,7 +71,7 @@ public:
 	const static int BORDER_WIDTH = 2;
 
 	ClipView( Clip * clip, TrackView * tv );
-	virtual ~ClipView();
+	~ClipView() override;
 
 	bool fixedClips();
 

include/ComboBox.h

@@ -40,7 +40,7 @@ class LMMS_EXPORT ComboBox : public QWidget, public IntModelView
 	Q_OBJECT
 public:
 	ComboBox( QWidget* parent = nullptr, const QString& name = QString() );
-	virtual ~ComboBox();
+	~ComboBox() override;
 
 	ComboBoxModel* model()
 	{

include/ComboBoxModel.h

@@ -47,7 +47,7 @@ public:
 	{
 	}
 
-	virtual ~ComboBoxModel()
+	~ComboBoxModel() override
 	{
 		clear();
 	}

include/ConfigManager.h

@@ -274,7 +274,7 @@ private:
 
 	ConfigManager();
 	ConfigManager(const ConfigManager & _c);
-	~ConfigManager();
+	~ConfigManager() override;
 
 	void upgrade_1_1_90();
 	void upgrade_1_1_91();

include/Controller.h

@@ -70,7 +70,7 @@ public:
 	Controller( ControllerTypes _type, Model * _parent,
 						const QString & _display_name );
 
-	virtual ~Controller();
+	~Controller() override;
 
 	virtual float currentValue( int _offset );
 	// The per-controller get-value-in-buffers function

include/ControllerConnection.h

@@ -58,7 +58,7 @@ public:
 	ControllerConnection(Controller * _controller);
 	ControllerConnection( int _controllerId );
 
-	virtual ~ControllerConnection();
+	~ControllerConnection() override;
 
 	inline Controller * getController()
 	{

include/ControllerConnectionDialog.h

@@ -61,7 +61,7 @@ class ControllerConnectionDialog : public QDialog
 public:
 	ControllerConnectionDialog( QWidget * _parent,
 			const AutomatableModel * _target_model );
-	virtual ~ControllerConnectionDialog();
+	~ControllerConnectionDialog() override;
 
 	Controller * chosenController()
 	{

include/ControllerDialog.h

@@ -44,7 +44,7 @@ class ControllerDialog : public QWidget, public ModelView
 public:
 	ControllerDialog( Controller * _controller, QWidget * _parent );
 
-	virtual ~ControllerDialog();
+	~ControllerDialog() override;
 
 
 signals:

include/ControllerRackView.h

@@ -53,7 +53,7 @@ class ControllerRackView : public QWidget, public SerializingObject
 	Q_OBJECT
 public:
 	ControllerRackView();
-	virtual ~ControllerRackView();
+	~ControllerRackView() override;
 
 	void saveSettings( QDomDocument & _doc, QDomElement & _parent ) override;
 	void loadSettings( const QDomElement & _this ) override;

include/ControllerView.h

@@ -48,7 +48,7 @@ class ControllerView : public QFrame, public ModelView
 	Q_OBJECT
 public:
 	ControllerView( Controller * _controller, QWidget * _parent );
-	virtual ~ControllerView();
+	~ControllerView() override;
 
 	inline Controller * getController()
 	{

include/CustomTextKnob.h

@@ -25,7 +25,7 @@ public:
 	}
 
 private:
-	virtual QString displayValue() const;
+	QString displayValue() const override;
 
 protected:
 	QString m_value_text;

include/DetuningHelper.h

@@ -42,7 +42,7 @@ public:
 	{
 	}
 
-	virtual ~DetuningHelper()
+	~DetuningHelper() override
 	{
 	}
 

include/DummyEffect.h

@@ -60,7 +60,7 @@ public:
 	{
 	}
 
-	virtual ~DummyEffectControls()
+	~DummyEffectControls() override
 	{
 	}
 
@@ -102,7 +102,7 @@ public:
 		setName();
 	}
 
-	virtual ~DummyEffect()
+	~DummyEffect() override
 	{
 	}
 

include/DummyInstrument.h

@@ -47,7 +47,7 @@ public:
 	{
 	}
 
-	virtual ~DummyInstrument()
+	~DummyInstrument() override
 	{
 	}
 

include/DummyPlugin.h

@@ -41,7 +41,7 @@ public:
 	{
 	}
 
-	virtual ~DummyPlugin()
+	~DummyPlugin() override
 	{
 	}
 

include/Editor.h

@@ -81,7 +81,7 @@ protected:
 	/// \param	record	If set true, the editor's toolbar will contain record
 	///					buttons in addition to the play and stop buttons.
 	Editor(bool record = false, bool record_step = false);
-	virtual ~Editor();
+	~Editor() override;
 
 
 	DropToolBar* m_toolBar;

include/Effect.h

@@ -55,7 +55,7 @@ public:
 	Effect( const Plugin::Descriptor * _desc,
 			Model * _parent,
 			const Descriptor::SubPluginFeatures::Key * _key );
-	virtual ~Effect();
+	~Effect() override;
 
 	void saveSettings( QDomDocument & _doc, QDomElement & _parent ) override;
 	void loadSettings( const QDomElement & _this ) override;

include/EffectChain.h

@@ -48,7 +48,7 @@ class LMMS_EXPORT EffectChain : public Model, public SerializingObject
 	Q_OBJECT
 public:
 	EffectChain( Model * _parent );
-	virtual ~EffectChain();
+	~EffectChain() override;
 
 	void saveSettings( QDomDocument & _doc, QDomElement & _parent ) override;
 	void loadSettings( const QDomElement & _this ) override;

include/EffectControlDialog.h

@@ -44,7 +44,7 @@ class LMMS_EXPORT EffectControlDialog : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	EffectControlDialog( EffectControls * _controls );
-	virtual ~EffectControlDialog();
+	~EffectControlDialog() override;
 
 	virtual bool isResizable() const {return false;}
 

include/EffectControls.h

@@ -51,7 +51,7 @@ public:
 	{
 	}
 
-	virtual ~EffectControls()
+	~EffectControls() override
 	{
 	}
 

include/EffectRackView.h

@@ -47,7 +47,7 @@ class EffectRackView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	EffectRackView( EffectChain* model, QWidget* parent = nullptr );
-	virtual ~EffectRackView();
+	~EffectRackView() override;
 
 	static constexpr int DEFAULT_WIDTH = 245;
 

include/EffectSelectDialog.h

@@ -43,7 +43,7 @@ class EffectSelectDialog : public QDialog
 	Q_OBJECT
 public:
 	EffectSelectDialog( QWidget * _parent );
-	virtual ~EffectSelectDialog();
+	~EffectSelectDialog() override;
 
 	Effect * instantiateSelectedPlugin( EffectChain * _parent );
 

include/EffectView.h

@@ -49,7 +49,7 @@ class EffectView : public PluginView
 	Q_OBJECT
 public:
 	EffectView( Effect * _model, QWidget * _parent );
-	virtual ~EffectView();
+	~EffectView() override;
 
 	inline Effect * effect()
 	{

include/EnvelopeAndLfoParameters.h

@@ -78,7 +78,7 @@ public:
 
 	EnvelopeAndLfoParameters( float _value_for_zero_amount,
 							Model * _parent );
-	virtual ~EnvelopeAndLfoParameters();
+	~EnvelopeAndLfoParameters() override;
 
 	static inline float expKnobVal( float _val )
 	{

include/EnvelopeAndLfoView.h

@@ -54,7 +54,7 @@ class EnvelopeAndLfoView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	EnvelopeAndLfoView( QWidget * _parent );
-	virtual ~EnvelopeAndLfoView();
+	~EnvelopeAndLfoView() override;
 
 
 protected:

include/ExportFilter.h

@@ -40,7 +40,7 @@ class LMMS_EXPORT ExportFilter : public Plugin
 {
 public:
 	ExportFilter( const Descriptor * _descriptor ) : Plugin( _descriptor, nullptr ) {}
-	virtual ~ExportFilter() {}
+	~ExportFilter() override {}
 
 
 	virtual bool tryExport(const TrackContainer::TrackList &tracks,

include/FadeButton.h

@@ -44,7 +44,7 @@ public:
 		const QColor & _hold_color,
 		QWidget * _parent );
 
-	virtual ~FadeButton();
+	~FadeButton() override;
 	void setActiveColor( const QColor & activated_color );
 
 

include/Fader.h

@@ -72,7 +72,7 @@ public:
 
 	Fader( FloatModel * _model, const QString & _name, QWidget * _parent );
 	Fader( FloatModel * _model, const QString & _name, QWidget * _parent, QPixmap * back, QPixmap * leds, QPixmap * knob );
-	virtual ~Fader() = default;
+	~Fader() override = default;
 
 	void init(FloatModel * model, QString const & name);
 

include/FileBrowser.h

@@ -68,7 +68,7 @@ public:
 			const QString& userDir = "",
 			const QString& factoryDir = "");
 
-	virtual ~FileBrowser() = default;
+	~FileBrowser() override = default;
 
 private slots:
 	void reloadTree( void );
@@ -107,7 +107,7 @@ class FileBrowserTreeWidget : public QTreeWidget
 	Q_OBJECT
 public:
 	FileBrowserTreeWidget( QWidget * parent );
-	virtual ~FileBrowserTreeWidget() = default;
+	~FileBrowserTreeWidget() override = default;
 
 	//! This method returns a QList with paths (QString's) of all directories
 	//! that are expanded in the tree.

include/Graph.h

@@ -67,7 +67,7 @@ public:
 		int _width = 132,
 		int _height = 104
 	);
-	virtual ~Graph() = default;
+	~Graph() override = default;
 
 	void setForeground( const QPixmap & _pixmap );
 
@@ -151,7 +151,7 @@ public:
 			bool _default_constructed = false,
 			float _step = 0.0 );
 
-	virtual ~graphModel() = default;
+	~graphModel() override = default;
 
 	// TODO: saveSettings, loadSettings?
 

include/GroupBox.h

@@ -42,7 +42,7 @@ class GroupBox : public QWidget, public BoolModelView
 	Q_OBJECT
 public:
 	GroupBox( const QString & _caption, QWidget * _parent = nullptr );
-	virtual ~GroupBox();
+	~GroupBox() override;
 
 	void modelChanged() override;
 

include/GuiApplication.h

@@ -50,7 +50,7 @@ class LMMS_EXPORT GuiApplication : public QObject
 	Q_OBJECT;
 public:
 	explicit GuiApplication();
-	~GuiApplication();
+	~GuiApplication() override;
 
 	static GuiApplication* instance();
 #ifdef LMMS_BUILD_WIN32

include/ImportFilter.h

@@ -42,7 +42,7 @@ class LMMS_EXPORT ImportFilter : public Plugin
 public:
 	ImportFilter( const QString & _file_name,
 					const Descriptor * _descriptor );
-	virtual ~ImportFilter();
+	~ImportFilter() override;
 
 
 	// tries to import given file to given track-container by having all

include/InlineAutomation.h

@@ -42,7 +42,7 @@ public:
 	{
 	}
 
-	virtual ~InlineAutomation()
+	~InlineAutomation() override
 	{
 		if( m_autoClip )
 		{

include/Instrument.h

@@ -60,7 +60,7 @@ public:
 	Instrument(InstrumentTrack * _instrument_track,
 			const Descriptor * _descriptor,
 			const Descriptor::SubPluginFeatures::Key * key = nullptr);
-	virtual ~Instrument() = default;
+	~Instrument() override = default;
 
 	// --------------------------------------------------------------------
 	// functions that can/should be re-implemented:

include/InstrumentFunctionViews.h

@@ -50,7 +50,7 @@ class InstrumentFunctionNoteStackingView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	InstrumentFunctionNoteStackingView( InstrumentFunctionNoteStacking* cc, QWidget* parent = nullptr );
-	virtual ~InstrumentFunctionNoteStackingView();
+	~InstrumentFunctionNoteStackingView() override;
 
 
 private:
@@ -73,7 +73,7 @@ class InstrumentFunctionArpeggioView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	InstrumentFunctionArpeggioView( InstrumentFunctionArpeggio* arp, QWidget* parent = nullptr );
-	virtual ~InstrumentFunctionArpeggioView();
+	~InstrumentFunctionArpeggioView() override;
 
 
 private:

include/InstrumentFunctions.h

@@ -58,7 +58,7 @@ private:
 
 public:
 	InstrumentFunctionNoteStacking( Model * _parent );
-	virtual ~InstrumentFunctionNoteStacking();
+	~InstrumentFunctionNoteStacking() override;
 
 	void processNote( NotePlayHandle* n );
 
@@ -180,7 +180,7 @@ public:
 	} ;
 
 	InstrumentFunctionArpeggio( Model * _parent );
-	virtual ~InstrumentFunctionArpeggio();
+	~InstrumentFunctionArpeggio() override;
 
 	void processNote( NotePlayHandle* n );
 

include/InstrumentMidiIOView.h

@@ -50,7 +50,7 @@ class InstrumentMidiIOView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	InstrumentMidiIOView( QWidget* parent );
-	virtual ~InstrumentMidiIOView();
+	~InstrumentMidiIOView() override;
 
 
 private:

include/InstrumentPlayHandle.h

@@ -38,7 +38,7 @@ class LMMS_EXPORT InstrumentPlayHandle : public PlayHandle
 public:
 	InstrumentPlayHandle( Instrument * instrument, InstrumentTrack* instrumentTrack );
 
-	virtual ~InstrumentPlayHandle()
+	~InstrumentPlayHandle() override
 	{
 	}
 

include/InstrumentSoundShaping.h

@@ -46,7 +46,7 @@ class InstrumentSoundShaping : public Model, public JournallingObject
 	Q_OBJECT
 public:
 	InstrumentSoundShaping( InstrumentTrack * _instrument_track );
-	virtual ~InstrumentSoundShaping();
+	~InstrumentSoundShaping() override;
 
 	void processAudioBuffer( sampleFrame * _ab, const fpp_t _frames,
 							NotePlayHandle * _n );

include/InstrumentSoundShapingView.h

@@ -47,7 +47,7 @@ class InstrumentSoundShapingView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	InstrumentSoundShapingView( QWidget * _parent );
-	virtual ~InstrumentSoundShapingView();
+	~InstrumentSoundShapingView() override;
 
 	void setFunctionsHidden( bool hidden );
 

include/InstrumentTrack.h

@@ -64,7 +64,7 @@ class LMMS_EXPORT InstrumentTrack : public Track, public MidiEventProcessor
 	mapPropertyFromModel(int,getVolume,setVolume,m_volumeModel);
 public:
 	InstrumentTrack( TrackContainer* tc );
-	virtual ~InstrumentTrack();
+	~InstrumentTrack() override;
 
 	// used by instrument
 	void processAudioBuffer( sampleFrame * _buf, const fpp_t _frames,
@@ -122,7 +122,7 @@ public:
 	}
 
 	// play everything in given frame-range - creates note-play-handles
-	virtual bool play( const TimePos & _start, const fpp_t _frames,
+	bool play( const TimePos & _start, const fpp_t _frames,
 						const f_cnt_t _frame_base, int _clip_num = -1 ) override;
 	// create new view for me
 	gui::TrackView* createView( gui::TrackContainerView* tcv ) override;
@@ -132,7 +132,7 @@ public:
 
 
 	// called by track
-	virtual void saveTrackSpecificSettings( QDomDocument & _doc,
+	void saveTrackSpecificSettings( QDomDocument & _doc,
 							QDomElement & _parent ) override;
 	void loadTrackSpecificSettings( const QDomElement & _this ) override;
 

include/InstrumentTrackView.h

@@ -46,7 +46,7 @@ class InstrumentTrackView : public TrackView
 	Q_OBJECT
 public:
 	InstrumentTrackView( InstrumentTrack * _it, TrackContainerView* tc );
-	virtual ~InstrumentTrackView();
+	~InstrumentTrackView() override;
 
 	InstrumentTrackWindow * getInstrumentTrackWindow();
 

include/InstrumentTrackWindow.h

@@ -65,7 +65,7 @@ class InstrumentTrackWindow : public QWidget, public ModelView,
 	Q_OBJECT
 public:
 	InstrumentTrackWindow( InstrumentTrackView * _tv );
-	virtual ~InstrumentTrackWindow();
+	~InstrumentTrackWindow() override;
 
 	// parent for all internal tab-widgets
 	TabWidget * tabWidgetParent()

include/JournallingObject.h

@@ -37,7 +37,7 @@ class LMMS_EXPORT JournallingObject : public SerializingObject
 {
 public:
 	JournallingObject();
-	virtual ~JournallingObject();
+	~JournallingObject() override;
 
 	inline jo_id_t id() const
 	{
@@ -60,7 +60,7 @@ public:
 
 	void addJournalCheckPoint();
 
-	virtual QDomElement saveState( QDomDocument & _doc,
+	QDomElement saveState( QDomDocument & _doc,
 									QDomElement & _parent ) override;
 
 	void restoreState( const QDomElement & _this ) override;

include/Ladspa2LMMS.h

@@ -68,7 +68,7 @@ public:
 
 private:
 	Ladspa2LMMS();
-	virtual ~Ladspa2LMMS();
+	~Ladspa2LMMS() override;
 
 	l_sortable_plugin_t m_instruments;
 	l_sortable_plugin_t m_validEffects;

include/LadspaControl.h

@@ -52,7 +52,7 @@ class LMMS_EXPORT LadspaControl : public Model, public JournallingObject
 public:
 	LadspaControl( Model * _parent, port_desc_t * _port,
 							bool _link = false );
-	~LadspaControl();
+	~LadspaControl() override;
 
 	LADSPA_Data value();
 	ValueBuffer * valueBuffer();

include/LadspaControlView.h

@@ -43,7 +43,7 @@ class LMMS_EXPORT LadspaControlView : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	LadspaControlView( QWidget * _parent, LadspaControl * _ctl );
-	virtual ~LadspaControlView();
+	~LadspaControlView() override;
 
 private:
 	LadspaControl * m_ctl;

include/LcdSpinBox.h

@@ -40,7 +40,7 @@ public:
 
 	LcdSpinBox( int numDigits, const QString& style, QWidget* parent, const QString& name = QString() );
 
-	virtual ~LcdSpinBox() = default;
+	~LcdSpinBox() override = default;
 
 	void modelChanged() override
 	{

include/LcdWidget.h

@@ -48,7 +48,7 @@ public:
 	LcdWidget(int numDigits, const QString& style, QWidget* parent, const QString& name = QString(),
 		bool leadingZero = false);
 
-	virtual ~LcdWidget();
+	~LcdWidget() override;
 
 	void setValue( int value );
 	void setLabel( const QString& label );

include/LedCheckBox.h

@@ -54,7 +54,7 @@ public:
 				const QString & _name = QString(),
 						LedColors _color = Yellow );
 
-	virtual ~LedCheckBox();
+	~LedCheckBox() override;
 
 
 	inline const QString & text()

include/LfoController.h

@@ -57,7 +57,7 @@ class LfoController : public Controller
 public:
 	LfoController( Model * _parent );
 
-	virtual ~LfoController();
+	~LfoController() override;
 
 	void saveSettings( QDomDocument & _doc, QDomElement & _this ) override;
 	void loadSettings( const QDomElement & _this ) override;
@@ -105,7 +105,7 @@ class LfoControllerDialog : public ControllerDialog
 	Q_OBJECT
 public:
 	LfoControllerDialog( Controller * _controller, QWidget * _parent );
-	virtual ~LfoControllerDialog();
+	~LfoControllerDialog() override;
 
 
 protected:

include/LinkedModelGroupViews.h

@@ -70,7 +70,7 @@ public:
 	*/
 	LinkedModelGroupView(QWidget* parent, LinkedModelGroup* model,
 		std::size_t colNum);
-	~LinkedModelGroupView();
+	~LinkedModelGroupView() override;
 
 	//! Reconnect models if model changed
 	void modelChanged(LinkedModelGroup* linkedModelGroup);

include/LmmsPalette.h

@@ -50,7 +50,7 @@ class LMMS_EXPORT LmmsPalette : public QWidget
 
 public:
 	LmmsPalette( QWidget * parent, QStyle * stylearg  ); 
-	virtual ~LmmsPalette();
+	~LmmsPalette() override;
 
 #define ACCESSMET( read, write ) \
 	QColor read () const; \

include/LmmsStyle.h

@@ -66,23 +66,23 @@ public:
 	};
 
 	LmmsStyle();
-	virtual ~LmmsStyle()
+	~LmmsStyle() override
 	{
 	}
 
 	QPalette standardPalette( void ) const override;
 
-	virtual void drawComplexControl(
+	void drawComplexControl(
 				ComplexControl control,
 				const QStyleOptionComplex * option,
 					QPainter *painter,
 						const QWidget *widget ) const override;
-	virtual void drawPrimitive( PrimitiveElement element,
+	void drawPrimitive( PrimitiveElement element,
 					const QStyleOption *option,
 					QPainter *painter,
 					const QWidget *widget = 0 ) const override;
 
-	virtual int pixelMetric( PixelMetric metric,
+	int pixelMetric( PixelMetric metric,
 					const QStyleOption * option = 0,
 					const QWidget * widget = 0 ) const override;
 

include/LocklessAllocator.h

@@ -67,7 +67,7 @@ public:
 	{
 	}
 
-	virtual ~LocklessAllocatorT()
+	~LocklessAllocatorT() override
 	{
 	}
 

include/Lv2ViewBase.h

@@ -58,7 +58,7 @@ class Lv2ViewProc : public LinkedModelGroupView
 public:
 	//! @param colNum numbers of columns for the controls
 	Lv2ViewProc(QWidget *parent, Lv2Proc *ctrlBase, int colNum);
-	~Lv2ViewProc();
+	~Lv2ViewProc() override;
 
 private:
 	static AutoLilvNode uri(const char *uriStr);

include/MainWindow.h

@@ -190,7 +190,7 @@ protected:
 private:
 	MainWindow();
 	MainWindow( const MainWindow & );
-	virtual ~MainWindow();
+	~MainWindow() override;
 
 	void finalize();
 

include/MeterDialog.h

@@ -41,7 +41,7 @@ class MeterDialog : public QWidget, public ModelView
 	Q_OBJECT
 public:
 	MeterDialog( QWidget * _parent, bool _simple = false );
-	virtual ~MeterDialog();
+	~MeterDialog() override;
 
 	void modelChanged() override;
 

include/MeterModel.h

@@ -38,7 +38,7 @@ class MeterModel : public Model
 	mapPropertyFromModel(int,getDenominator,setDenominator,m_denominatorModel);
 public:
 	MeterModel( Model * _parent );
-	~MeterModel();
+	~MeterModel() override;
 
 	void saveSettings( QDomDocument & _doc, QDomElement & _this,
 						const QString & _name );

include/MidiAlsaRaw.h

@@ -48,7 +48,7 @@ class MidiAlsaRaw : public QThread, public MidiClientRaw
 	Q_OBJECT
 public:
 	MidiAlsaRaw();
-	virtual ~MidiAlsaRaw();
+	~MidiAlsaRaw() override;
 
 	static QString probeDevice();
 

include/MidiAlsaSeq.h

@@ -51,7 +51,7 @@ class MidiAlsaSeq : public QThread, public MidiClient
 	Q_OBJECT
 public:
 	MidiAlsaSeq();
-	virtual ~MidiAlsaSeq();
+	~MidiAlsaSeq() override;
 
 	static QString probeDevice();
 
@@ -70,7 +70,7 @@ public:
 
 
 
-	virtual void processOutEvent( const MidiEvent & _me,
+	void processOutEvent( const MidiEvent & _me,
 						const TimePos & _time,
 						const MidiPort * _port ) override;
 
@@ -95,20 +95,20 @@ public:
 	QString sourcePortName( const MidiEvent & ) const override;
 
 	// (un)subscribe given MidiPort to/from destination-port
-	virtual void subscribeReadablePort( MidiPort * _port,
+	void subscribeReadablePort( MidiPort * _port,
 						const QString & _dest,
 						bool _subscribe = true ) override;
-	virtual void subscribeWritablePort( MidiPort * _port,
+	void subscribeWritablePort( MidiPort * _port,
 						const QString & _dest,
 						bool _subscribe = true ) override;
-	virtual void connectRPChanged( QObject * _receiver,
+	void connectRPChanged( QObject * _receiver,
 							const char * _member ) override
 	{
 		connect( this, SIGNAL( readablePortsChanged() ),
 							_receiver, _member );
 	}
 
-	virtual void connectWPChanged( QObject * _receiver,
+	void connectWPChanged( QObject * _receiver,
 							const char * _member ) override
 	{
 		connect( this, SIGNAL( writablePortsChanged() ),

include/MidiClient.h

@@ -125,7 +125,7 @@ class MidiClientRaw : public MidiClient
 {
 public:
 	MidiClientRaw();
-	virtual ~MidiClientRaw();
+	~MidiClientRaw() override;
 
 	// we are raw-clients for sure!
 	bool isRaw() const override

include/MidiClip.h

@@ -55,7 +55,7 @@ public:
 
 	MidiClip( InstrumentTrack* instrumentTrack );
 	MidiClip( const MidiClip& other );
-	virtual ~MidiClip();
+	~MidiClip() override;
 
 	void init();
 

include/MidiClipView.h

@@ -43,7 +43,7 @@ class MidiClipView : public ClipView
 
 public:
 	MidiClipView( MidiClip* clip, TrackView* parent );
- 	virtual ~MidiClipView() = default;
+ 	~MidiClipView() override = default;
 
 	Q_PROPERTY(QColor noteFillColor READ getNoteFillColor WRITE setNoteFillColor)
 	Q_PROPERTY(QColor noteBorderColor READ getNoteBorderColor WRITE setNoteBorderColor)

include/MidiController.h

@@ -49,12 +49,12 @@ class MidiController : public Controller, public MidiEventProcessor
 	Q_OBJECT
 public:
 	MidiController( Model * _parent );
-	virtual ~MidiController();
+	~MidiController() override;
 
-	virtual void processInEvent( const MidiEvent & _me,
+	void processInEvent( const MidiEvent & _me,
 					const TimePos & _time, f_cnt_t offset = 0 ) override;
 
-	virtual void processOutEvent( const MidiEvent& _me,
+	void processOutEvent( const MidiEvent& _me,
 					const TimePos & _time, f_cnt_t offset = 0 ) override
 	{
 		// No output yet

include/MidiDummy.h

@@ -38,7 +38,7 @@ public:
 	MidiDummy()
 	{
 	}
-	virtual ~MidiDummy()
+	~MidiDummy() override
 	{
 	}
 

include/MidiJack.h

@@ -53,7 +53,7 @@ class MidiJack : public QThread, public MidiClientRaw
         Q_OBJECT
 public:
 	MidiJack();
-	virtual ~MidiJack();
+	~MidiJack() override;
 
 	jack_client_t* jackClient();
 
@@ -76,8 +76,8 @@ public:
 
 
 protected:
-	virtual void sendByte( const unsigned char c );
-	virtual void run();
+	void sendByte( const unsigned char c ) override;
+	void run() override;
 
 
 private:

include/MidiOss.h

@@ -44,7 +44,7 @@ class MidiOss : public QThread, public MidiClientRaw
 	Q_OBJECT
 public:
 	MidiOss();
-	virtual ~MidiOss();
+	~MidiOss() override;
 
 	static QString probeDevice();
 

include/MidiPort.h

@@ -83,7 +83,7 @@ public:
 			MidiEventProcessor* eventProcessor,
 			Model* parent = nullptr,
 			Mode mode = Disabled );
-	virtual ~MidiPort();
+	~MidiPort() override;
 
 	void setName( const QString& name );