Add missing override to fix clang's -Winconsistent-missing-override warnings

34 files changed, 163 insertions, 163 deletions

diff --git a/src/controllers/controlleroutputmappingtablemodel.h b/src/controllers/controlleroutputmappingtablemodel.h
index c2553806fe..781338c0e7 100644
--- a/src/controllers/controlleroutputmappingtablemodel.h
+++ b/src/controllers/controlleroutputmappingtablemodel.h
@@ -35,7 +35,7 @@ class ControllerOutputMappingTableModel : public ControllerMappingTableModel {
     // QAbstractItemModel methods
     ////////////////////////////////////////////////////////////////////////////
     int rowCount(const QModelIndex& parent = QModelIndex()) const override;
-    int columnCount(const QModelIndex& parent = QModelIndex()) const;
+    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
     QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
     bool setData(const QModelIndex& index, const QVariant& value,
                  int role = Qt::EditRole) override;
diff --git a/src/effects/builtin/loudnesscontoureffect.h b/src/effects/builtin/loudnesscontoureffect.h
index b133a5b983..158b5af79a 100644
--- a/src/effects/builtin/loudnesscontoureffect.h
+++ b/src/effects/builtin/loudnesscontoureffect.h
@@ -47,7 +47,7 @@ class LoudnessContourEffect
                         const CSAMPLE* pInput, CSAMPLE *pOutput,
                         const mixxx::EngineParameters& bufferParameters,
                         const EffectEnableState enableState,
-                        const GroupFeatureState& groupFeatureState);
+                        const GroupFeatureState& groupFeatureState) override;
 
   private:
     LoudnessContourEffect(const LoudnessContourEffect&) = delete;
diff --git a/src/effects/builtin/threebandbiquadeqeffect.h b/src/effects/builtin/threebandbiquadeqeffect.h
index 73a00891ef..08a641b8de 100644
--- a/src/effects/builtin/threebandbiquadeqeffect.h
+++ b/src/effects/builtin/threebandbiquadeqeffect.h
@@ -58,7 +58,7 @@ class ThreeBandBiquadEQEffect : public EffectProcessorImpl<ThreeBandBiquadEQEffe
                         const CSAMPLE* pInput, CSAMPLE *pOutput,
                         const mixxx::EngineParameters& bufferParameters,
                         const EffectEnableState enableState,
-                        const GroupFeatureState& groupFeatureState);
+                        const GroupFeatureState& groupFeatureState) override;
 
   private:
     ThreeBandBiquadEQEffect(const ThreeBandBiquadEQEffect&) = delete;
diff --git a/src/effects/effectrack.h b/src/effects/effectrack.h
index 1f97f9f1d8..1ec660578b 100644
--- a/src/effects/effectrack.h
+++ b/src/effects/effectrack.h
@@ -187,7 +187,7 @@ class QuickEffectRack : public PerGroupRack {
     }
 
     QString formatEffectSlotGroupString(const unsigned int iEffectSlotNumber,
-                                        const QString& group) const {
+                                        const QString& group) const override {
         return formatEffectSlotGroupString(getRackNumber(), iEffectSlotNumber,
                                            group);
     }
@@ -203,7 +203,7 @@ class QuickEffectRack : public PerGroupRack {
 
     virtual QString formatEffectChainSlotGroupForGroup(const unsigned int iRackNumber,
                                                        const unsigned int iChainSlotNumber,
-                                                       const QString& group) const {
+                                                       const QString& group) const override {
         Q_UNUSED(iChainSlotNumber);
         return formatEffectChainSlotGroupString(iRackNumber, group);
     }
@@ -239,7 +239,7 @@ class EqualizerRack : public PerGroupRack {
     }
 
     QString formatEffectSlotGroupString(const unsigned int iEffectSlotNumber,
-                                        const QString& group) const {
+                                        const QString& group) const override {
         return formatEffectSlotGroupString(getRackNumber(), iEffectSlotNumber,
                                            group);
     }
@@ -254,7 +254,7 @@ class EqualizerRack : public PerGroupRack {
                                           const QString& group) override;
     virtual QString formatEffectChainSlotGroupForGroup(const unsigned int iRackNumber,
                                                        const unsigned int iChainSlotNumber,
-                                                       const QString& group) const {
+                                                       const QString& group) const override {
         Q_UNUSED(iChainSlotNumber);
         return formatEffectChainSlotGroupString(iRackNumber, group);
     }
diff --git a/src/engine/sidechain/enginerecord.h b/src/engine/sidechain/enginerecord.h
index f219266a97..29ef65d39c 100644
--- a/src/engine/sidechain/enginerecord.h
+++ b/src/engine/sidechain/enginerecord.h
@@ -26,8 +26,8 @@ class EngineRecord : public QObject, public EncoderCallback, public SideChainWor
     EngineRecord(UserSettingsPointer pConfig);
     virtual ~EngineRecord();
 
-    void process(const CSAMPLE* pBuffer, const int iBufferSize);
-    void shutdown() {}
+    void process(const CSAMPLE* pBuffer, const int iBufferSize) override;
+    void shutdown() override {}
 
     // writes compressed audio to file
     void write(const unsigned char *header, const unsigned char *body, int headerLen, int bodyLen) override;
diff --git a/src/engine/sidechain/shoutconnection.h b/src/engine/sidechain/shoutconnection.h
index 74e94e9c72..b4e520c1fd 100644
--- a/src/engine/sidechain/shoutconnection.h
+++ b/src/engine/sidechain/shoutconnection.h
@@ -41,9 +41,9 @@ class ShoutConnection
 
     // This is called by the Engine implementation for each sample. Encode and
     // send the stream, as well as check for metadata changes.
-    void process(const CSAMPLE* pBuffer, const int iBufferSize);
+    void process(const CSAMPLE* pBuffer, const int iBufferSize) override;
 
-    void shutdown() {
+    void shutdown() override {
     }
 
     // Called by the encoder in method 'encodebuffer()' to flush the stream to
@@ -62,11 +62,11 @@ class ShoutConnection
     bool isConnected();
     void applySettings();
 
-    virtual void outputAvailable();
-    virtual void setOutputFifo(QSharedPointer<FIFO<CSAMPLE>> pOutputFifo);
-    QSharedPointer<FIFO<CSAMPLE>> getOutputFifo();
-    virtual bool threadWaiting();
-    virtual void run();
+    virtual void outputAvailable() override;
+    virtual void setOutputFifo(QSharedPointer<FIFO<CSAMPLE>> pOutputFifo) override;
+    QSharedPointer<FIFO<CSAMPLE>> getOutputFifo() override;
+    virtual bool threadWaiting() override;
+    virtual void run() override;
 
     BroadcastProfilePtr profile() {
         return m_pProfile;
diff --git a/src/engine/sync/synccontrol.h b/src/engine/sync/synccontrol.h
index 63155d285b..756fc96517 100644
--- a/src/engine/sync/synccontrol.h
+++ b/src/engine/sync/synccontrol.h
@@ -24,34 +24,34 @@ class SyncControl : public EngineControl, public Syncable {
                 EngineChannel* pChannel, SyncableListener* pEngineSync);
     ~SyncControl() override;
 
-    const QString& getGroup() const { return m_sGroup; }
-    EngineChannel* getChannel() const { return m_pChannel; }
-    double getBpm() const;
+    const QString& getGroup() const override { return m_sGroup; }
+    EngineChannel* getChannel() const override { return m_pChannel; }
+    double getBpm() const override;
 
-    SyncMode getSyncMode() const;
-    void notifySyncModeChanged(SyncMode mode);
-    void notifyOnlyPlayingSyncable();
-    void requestSync();
-    bool isPlaying() const;
+    SyncMode getSyncMode() const override;
+    void notifySyncModeChanged(SyncMode mode) override;
+    void notifyOnlyPlayingSyncable() override;
+    void requestSync() override;
+    bool isPlaying() const override;
 
-    double getBeatDistance() const;
+    double getBeatDistance() const override;
     void setBeatDistance(double beatDistance);
-    double getBaseBpm() const;
+    double getBaseBpm() const override;
     void setLocalBpm(double local_bpm);
 
     // Must never result in a call to
     // SyncableListener::notifyBeatDistanceChanged or signal loops could occur.
-    void setMasterBeatDistance(double beatDistance);
-    void setMasterBaseBpm(double);
+    void setMasterBeatDistance(double beatDistance) override;
+    void setMasterBaseBpm(double) override;
     // Must never result in a call to
     // SyncableListener::notifyBpmChanged or signal loops could occur.
-    void setMasterBpm(double bpm);
-    void setMasterParams(double beatDistance, double baseBpm, double bpm);
+    void setMasterBpm(double bpm) override;
+    void setMasterParams(double beatDistance, double baseBpm, double bpm) override;
 
     // Must never result in a call to
     // SyncableListener::notifyInstantaneousBpmChanged or signal loops could
     // occur.
-    void setInstantaneousBpm(double bpm);
+    void setInstantaneousBpm(double bpm) override;
 
     void setEngineControls(RateControl* pRateControl, BpmControl* pBpmControl);
 
diff --git a/src/library/analysisfeature.h b/src/library/analysisfeature.h
index 6a0606e9ad..f49459af3a 100644
--- a/src/library/analysisfeature.h
+++ b/src/library/analysisfeature.h
@@ -30,22 +30,22 @@ class AnalysisFeature : public LibraryFeature {
 
     void stop();
 
-    QVariant title();
-    QIcon getIcon();
+    QVariant title() override;
+    QIcon getIcon() override;
 
-    bool dropAccept(QList<QUrl> urls, QObject* pSource);
-    bool dragMoveAccept(QUrl url);
+    bool dropAccept(QList<QUrl> urls, QObject* pSource) override;
+    bool dragMoveAccept(QUrl url) override;
     void bindLibraryWidget(WLibrary* libraryWidget,
-                    KeyboardEventFilter* keyboard);
+                    KeyboardEventFilter* keyboard) override;
 
-    TreeItemModel* getChildModel();
+    TreeItemModel* getChildModel() override;
     void refreshLibraryModels();
 
   signals:
     void analysisActive(bool bActive);
 
   public slots:
-    void activate();
+    void activate() override;
     void analyzeTracks(QList<TrackId> trackIds);
 
     void suspendAnalysis();
diff --git a/src/library/autodj/autodjfeature.h b/src/library/autodj/autodjfeature.h
index 2da3f84c9c..2389d327b8 100644
--- a/src/library/autodj/autodjfeature.h
+++ b/src/library/autodj/autodjfeature.h
@@ -39,27 +39,27 @@ class AutoDJFeature : public LibraryFeature {
                   TrackCollection* pTrackCollection);
     virtual ~AutoDJFeature();
 
-    QVariant title();
-    QIcon getIcon();
+    QVariant title() override;
+    QIcon getIcon() override;
 
-    bool dropAccept(QList<QUrl> urls, QObject* pSource);
-    bool dragMoveAccept(QUrl url);
+    bool dropAccept(QList<QUrl> urls, QObject* pSource) override;
+    bool dragMoveAccept(QUrl url) override;
 
     void bindLibraryWidget(WLibrary* libraryWidget,
-                    KeyboardEventFilter* keyboard);
-    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget);
+                    KeyboardEventFilter* keyboard) override;
+    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget) override;
 
-    TreeItemModel* getChildModel();
+    TreeItemModel* getChildModel() override;
 
     bool hasTrackTable() override {
         return true;
     }
 
   public slots:
-    void activate();
+    void activate() override;
 
     // Temporary, until WCrateTableView can be written.
-    void onRightClickChild(const QPoint& globalPos, QModelIndex index);
+    void onRightClickChild(const QPoint& globalPos, QModelIndex index) override;
 
   private:
     UserSettingsPointer m_pConfig;
diff --git a/src/library/basesqltablemodel.h b/src/library/basesqltablemodel.h
index b98588d360..a7635d0b7f 100644
--- a/src/library/basesqltablemodel.h
+++ b/src/library/basesqltablemodel.h
@@ -60,7 +60,7 @@ class BaseSqlTableModel : public QAbstractTableModel, public TrackModel {
 
     // calls readWriteFlags() by default, reimplement this if the child calls
     // should be readOnly
-    virtual Qt::ItemFlags flags(const QModelIndex &index) const;
+    virtual Qt::ItemFlags flags(const QModelIndex &index) const override;
 
     ///////////////////////////////////////////////////////////////////////////
     // Inherited from TrackModel
@@ -85,7 +85,7 @@ class BaseSqlTableModel : public QAbstractTableModel, public TrackModel {
     bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override;
 
   public slots:
-    void select();
+    void select() override;
 
   protected:
     void setTable(const QString& tableName, const QString& trackIdColumn,
diff --git a/src/library/coverartdelegate.h b/src/library/coverartdelegate.h
index 2713555bd4..026d67bca5 100644
--- a/src/library/coverartdelegate.h
+++ b/src/library/coverartdelegate.h
@@ -19,7 +19,7 @@ class CoverArtDelegate : public TableItemDelegate {
 
     void paintItem(QPainter* painter,
                const QStyleOptionViewItem& option,
-               const QModelIndex& index) const;
+               const QModelIndex& index) const override;
 
   signals:
     void coverReadyForCell(int row, int column);
diff --git a/src/library/crate/cratefeature.h b/src/library/crate/cratefeature.h
index 6e33ae73d1..f2f46d5557 100644
--- a/src/library/crate/cratefeature.h
+++ b/src/library/crate/cratefeature.h
@@ -44,7 +44,7 @@ class CrateFeature : public LibraryFeature {
 
     void bindLibraryWidget(WLibrary* libraryWidget,
                     KeyboardEventFilter* keyboard) override;
-    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget);
+    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget) override;
 
     TreeItemModel* getChildModel() override;
 
diff --git a/src/library/dao/libraryhashdao.h b/src/library/dao/libraryhashdao.h
index 5c8b3fbd66..123a95b2fa 100644
--- a/src/library/dao/libraryhashdao.h
+++ b/src/library/dao/libraryhashdao.h
@@ -12,7 +12,7 @@ class LibraryHashDAO : public DAO {
   public:
     ~LibraryHashDAO() override {}
 
-    void initialize(const QSqlDatabase& database) {
+    void initialize(const QSqlDatabase& database) override {
         m_database = database;
     };
 
diff --git a/src/library/dao/playlistdao.h b/src/library/dao/playlistdao.h
index 5f9af679a7..af882c445d 100644
--- a/src/library/dao/playlistdao.h
+++ b/src/library/dao/playlistdao.h
@@ -51,7 +51,7 @@ class PlaylistDAO : public QObject, public virtual DAO {
     PlaylistDAO();
     ~PlaylistDAO() override {}
 
-    void initialize(const QSqlDatabase& database);
+    void initialize(const QSqlDatabase& database) override;
 
     // Create a playlist, fails with -1 if already exists
     int createPlaylist(const QString& name, const HiddenType type = PLHT_NOT_HIDDEN);
diff --git a/src/library/itunes/itunesfeature.h b/src/library/itunes/itunesfeature.h
index 02081a03f1..1570f4a642 100644
--- a/src/library/itunes/itunesfeature.h
+++ b/src/library/itunes/itunesfeature.h
@@ -27,21 +27,21 @@ class ITunesFeature : public BaseExternalLibraryFeature {
     virtual ~ITunesFeature();
     static bool isSupported();
 
-    QVariant title();
-    QIcon getIcon();
-    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget);
+    QVariant title() override;
+    QIcon getIcon() override;
+    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget) override;
 
-    TreeItemModel* getChildModel();
+    TreeItemModel* getChildModel() override;
 
   public slots:
-    void activate();
+    void activate() override;
     void activate(bool forceReload);
-    void activateChild(const QModelIndex& index);
+    void activateChild(const QModelIndex& index) override;
     void onRightClick(const QPoint& globalPos) override;
     void onTrackCollectionLoaded();
 
   private:
-    virtual BaseSqlTableModel* getPlaylistModelForPlaylist(QString playlist);
+    virtual BaseSqlTableModel* getPlaylistModelForPlaylist(QString playlist) override;
     static QString getiTunesMusicPath();
     // returns the invisible rootItem for the sidebar model
     TreeItem* importLibrary();
diff --git a/src/library/mixxxlibraryfeature.h b/src/library/mixxxlibraryfeature.h
index 621dd8ae35..28ba9ee620 100644
--- a/src/library/mixxxlibraryfeature.h
+++ b/src/library/mixxxlibraryfeature.h
@@ -34,21 +34,21 @@ class MixxxLibraryFeature : public LibraryFeature {
                         UserSettingsPointer pConfig);
     virtual ~MixxxLibraryFeature();
 
-    QVariant title();
-    QIcon getIcon();
-    bool dropAccept(QList<QUrl> urls, QObject* pSource);
-    bool dragMoveAccept(QUrl url);
-    TreeItemModel* getChildModel();
+    QVariant title() override;
+    QIcon getIcon() override;
+    bool dropAccept(QList<QUrl> urls, QObject* pSource) override;
+    bool dragMoveAccept(QUrl url) override;
+    TreeItemModel* getChildModel() override;
     void bindLibraryWidget(WLibrary* pLibrary,
-                    KeyboardEventFilter* pKeyboard);
+                    KeyboardEventFilter* pKeyboard) override;
 
     bool hasTrackTable() override {
         return true;
     }
 
   public slots:
-    void activate();
-    void activateChild(const QModelIndex& index);
+    void activate() override;
+    void activateChild(const QModelIndex& index) override;
     void refreshLibraryModels();
 
   private:
diff --git a/src/library/playlistfeature.h b/src/library/playlistfeature.h
index 1d0bb936d1..9e93c7b452 100644
--- a/src/library/playlistfeature.h
+++ b/src/library/playlistfeature.h
@@ -26,22 +26,22 @@ class PlaylistFeature : public BasePlaylistFeature {
                     UserSettingsPointer pConfig);
     virtual ~PlaylistFeature();
 
-    QVariant title();
-    QIcon getIcon();
+    QVariant title() override;
+    QIcon getIcon() override;
 
-    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget);
+    void bindSidebarWidget(WLibrarySidebar* pSidebarWidget) override;
 
-    bool dropAcceptChild(const QModelIndex& index, QList<QUrl> urls, QObject* pSource);
-    bool dragMoveAcceptChild(const QModelIndex& index, QUrl url);
+    bool dropAcceptChild(const QModelIndex& index, QList<QUrl> urls, QObject* pSource) override;
+    bool dragMoveAcceptChild(const QModelIndex& index, QUrl url) override;
 
   public slots:
-    void onRightClick(const QPoint& globalPos);
-    void onRightClickChild(const QPoint& globalPos, QModelIndex index);
+    void onRightClick(const QPoint& globalPos) override;
+    void onRightClickChild(const QPoint& globalPos, QModelIndex index) override;
 
   private slots:
-    void slotPlaylistTableChanged(int playlistId);
-    void slotPlaylistContentChanged(int playlistId);
-    void slotPlaylistTableRenamed(int playlistId, QString a_strName);
+    void slotPlaylistTableChanged(int playlistId) override;
+    void slotPlaylistContentChanged(int playlistId) override;
+    void slotPlaylistTableRenamed(int playlistId, QString a_strName) override;
 
  protected:
     QList<BasePlaylistFeature::IdAndLabel> createPlaylistLabels() override;
@@ -49,7 +49,7 @@ class PlaylistFeature : public BasePlaylistFeature {
     void decorateChild(TreeItem *pChild, int playlist_id) override;
 
   private:
-    QString getRootViewHtml() const;
+    QString getRootViewHtml() const override;
     QIcon m_icon;
     QPointer<WLibrarySidebar> m_pSidebarWidget;
 };
diff --git a/src/library/playlisttablemodel.h b/src/library/playlisttablemodel.h
index 18fa3320be..10641d0f82 100644
--- a/src/library/playlisttablemodel.h
+++ b/src/library/playlisttablemodel.h
@@ -18,7 +18,7 @@ class PlaylistTableModel : public BaseSqlTableModel {
 
     bool appendTrack(TrackId trackId);
     void moveTrack(const QModelIndex& sourceIndex,
-                   const QModelIndex& destIndex);
+                   const QModelIndex& destIndex) override;
     void removeTrack(const QModelIndex& index);
     void shuffleTracks(const QModelIndexList& shuffle, const QModelIndex& exclude);
 
diff --git a/src/library/scanner/libraryscanner.h b/src/library/scanner/libraryscanner.h
index 60eb497019..d8551e0e9b 100644
--- a/src/library/scanner/libraryscanner.h
+++ b/src/library/scanner/libraryscanner.h
@@ -57,7 +57,7 @@ class LibraryScanner : public QThread {
     void startScan();
 
   protected:
-    void run();
+    void run() override;
 
   public slots:
     void queueTask(ScannerTask* pTask);
diff --git a/src/library/setlogfeature.h b/src/library/setlogfeature.h
index 1813e35f9d..ba5088e0b2 100644
--- a/src/library/setlogfeature.h
+++ b/src/library/setlogfeature.h
@@ -22,16 +22,16 @@ public:
                   TrackCollection* pTrackCollection);
     virtual ~SetlogFeature();
 
-    QVariant title();
-    QIcon getIcon();
+    QVariant title() override;
+    QIcon getIcon() override;
 
     virtual void bindLibraryWidget(WLibrary* libraryWidget,
-                            KeyboardEventFilter* keyboard);
-    virtual void bindSidebarWidget(WLibrarySidebar* pSidebarWidget);
+                            KeyboardEventFilter* keyboard) override;
+    virtual void bindSidebarWidget(WLibrarySidebar* pSidebarWidget) override;
 
   public slots:
-    void onRightClick(const QPoint& globalPos);
-    void onRightClickChild(const QPoint& globalPos, QModelIndex index);
+    void onRightClick(const QPoint& globalPos) override;
+    void onRightClickChild(const QPoint& globalPos, QModelIndex index) override;
     void slotJoinWithPrevious();
     void slotGetNewPlaylist();
 
@@ -42,12 +42,12 @@ public:
 
   private slots:
     void slotPlayingTrackChanged(TrackPointer currentPlayingTrack);
-    void slotPlaylistTableChanged(int playlistId);
-    void slotPlaylistContentChanged(int playlistId);
-    void slotPlaylistTableRenamed(int playlistId, QString a_strName);
+    void slotPlaylistTableChanged(int playlistId) override;
+    void slotPlaylistContentChanged(int playlistId) override;
+    void slotPlaylistTableRenamed(int playlistId, QString a_strName) override;
 
   private:
-    QString getRootViewHtml() const;
+    QString getRootViewHtml() const override;
 
     QLinkedList<TrackId> m_recentTracks;
     QAction* m_pJoinWithPreviousAction;
diff --git a/src/library/sidebarmodel.h b/src/library/sidebarmodel.h
index 3dc4891ed3..7329b00243 100644
--- a/src/library/sidebarmodel.h
+++ b/src/library/sidebarmodel.h
@@ -26,15 +26,15 @@ class SidebarModel : public QAbstractItemModel {
 
     // Required for QAbstractItemModel
     QModelIndex index(int row, int column,
-                      const QModelIndex& parent = QModelIndex()) const;
-    QModelIndex parent(const QModelIndex& index) const;
-    int rowCount(const QModelIndex& parent = QModelIndex()) const;
-    int columnCount(const QModelIndex& parent = QModelIndex()) const;
+                      const QModelIndex& parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex& index) const override;
+    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
     QVariant data(const QModelIndex& index,
-                  int role = Qt::DisplayRole) const;
+                  int role = Qt::DisplayRole) const override;
     bool dropAccept(const QModelIndex& index, QList<QUrl> urls, QObject* pSource);
     bool dragMoveAccept(const QModelIndex& index, QUrl url);
-    virtual bool hasChildren(const QModelIndex& parent = QModelIndex()) const;
+    virtual bool hasChildren(const QModelIndex& parent = QModelIndex()) const override;
     bool hasTrackTable(const QModelIndex& index) const;
 
   public slots:
diff --git a/src/mixxx.h b/src/mixxx.h
index cb2549ed0a..bedd2ca962 100644
--- a/src/mixxx.h
+++ b/src/mixxx.h
@@ -111,9 +111,9 @@ class MixxxMainWindow : public QMainWindow {
 
   protected:
     // Event filter to block certain events (eg. tooltips if tooltips are disabled)
-    virtual bool eventFilter(QObject *obj, QEvent *event);
-    virtual void closeEvent(QCloseEvent *event);
-    virtual bool event(QEvent* e);
+    virtual bool eventFilter(QObject *obj, QEvent *event) override;
+    virtual void closeEvent(QCloseEvent *event) override;
+    virtual bool event(QEvent* e) override;
 
   private:
     void initialize(QApplication *app, const CmdlineArgs& args);
diff --git a/src/preferences/dialog/dlgpreflibrary.h b/src/preferences/dialog/dlgpreflibrary.h
index 13c9be4f09..7ec3648242 100644
--- a/src/preferences/dialog/dlgpreflibrary.h
+++ b/src/preferences/dialog/dlgpreflibrary.h
@@ -32,12 +32,12 @@ class DlgPrefLibrary : public DlgPreferencePage, public Ui::DlgPrefLibraryDlg  {
 
   public slots:
     // Common preference page slots.
-    void slotUpdate();
-    void slotShow();
-    void slotHide();
-    void slotResetToDefaults();
-    void slotApply();
-    void slotCancel();
+    void slotUpdate() override;
+    void slotShow() override;
+    void slotHide() override;
+    void slotResetToDefaults() override;
+    void slotApply() override;
+    void slotCancel() override;
 
     // Dialog to browse for music file directory
     void slotAddDir();
diff --git a/src/track/beatgrid.h b/src/track/beatgrid.h
index 90ad5ca0c8..25df0c1c90 100644
--- a/src/track/beatgrid.h
+++ b/src/track/beatgrid.h
@@ -33,43 +33,43 @@ class BeatGrid final : public Beats {
     // The following are all methods from the Beats interface, see method
     // comments in beats.h
 
-    virtual Beats::CapabilitiesFlags getCapabilities() const {
+    virtual Beats::CapabilitiesFlags getCapabilities() const override {
         return BEATSCAP_TRANSLATE | BEATSCAP_SCALE | BEATSCAP_SETBPM;
     }
 
-    virtual QByteArray toByteArray() const;
-    virtual BeatsPointer clone() const;
-    virtual QString getVersion() const;
-    virtual QString getSubVersion() const;
+    virtual QByteArray toByteArray() const override;
+    virtual BeatsPointer clone() const override;
+    virtual QString getVersion() const override;
+    virtual QString getSubVersion() const override;
     virtual void setSubVersion(QString subVersion);
 
     ////////////////////////////////////////////////////////////////////////////
     // Beat calculations
     ////////////////////////////////////////////////////////////////////////////