Use override

src/widgets/autoexpandingtreeview.h

@@ -46,35 +46,35 @@ class AutoExpandingTreeView : public QTreeView {
   void SetExpandOnReset(bool v) { expand_on_reset_ = v; }
   void SetAddOnDoubleClick(bool v) { add_on_double_click_ = v; }
 
-public slots:
+ public slots:
   void RecursivelyExpand(const QModelIndex &idx);
   void UpAndFocus();
   void DownAndFocus();
 
-signals:
+ signals:
   void AddToPlaylistSignal(QMimeData *data);
   void FocusOnFilterSignal(QKeyEvent *event);
 
-protected:
+ protected:
   // QAbstractItemView
-  void reset();
+  void reset() override;
 
   // QWidget
-  void mousePressEvent(QMouseEvent *event);
-  void mouseDoubleClickEvent(QMouseEvent *event);
-  void keyPressEvent(QKeyEvent *event);
+  void mousePressEvent(QMouseEvent *event) override;
+  void mouseDoubleClickEvent(QMouseEvent *event) override;
+  void keyPressEvent(QKeyEvent *event) override;
 
   virtual bool CanRecursivelyExpand(const QModelIndex &idx) const { Q_UNUSED(idx); return true; }
 
-private slots:
+ private slots:
   void ItemExpanded(const QModelIndex &idx);
   void ItemClicked(const QModelIndex &idx);
   void ItemDoubleClicked(const QModelIndex &idx);
 
-private:
+ private:
   bool RecursivelyExpand(const QModelIndex &idx, int *count);
 
-private:
+ private:
   bool auto_open_;
   bool expand_on_reset_;
   bool add_on_double_click_;

src/widgets/busyindicator.h

@@ -40,14 +40,14 @@ class BusyIndicator : public QWidget {
  public:
   explicit BusyIndicator(const QString &text, QWidget *parent = nullptr);
   explicit BusyIndicator(QWidget *parent = nullptr);
-  ~BusyIndicator();
+  ~BusyIndicator() override;
 
   QString text() const;
   void set_text(const QString &text);
 
  protected:
-  void showEvent(QShowEvent *event);
-  void hideEvent(QHideEvent *event);
+  void showEvent(QShowEvent *event) override;
+  void hideEvent(QHideEvent *event) override;
 
  private:
   void Init(const QString &text);

src/widgets/clickablelabel.h

@@ -37,7 +37,7 @@ class ClickableLabel : public QLabel {
   void Clicked();
 
  protected:
-  void mousePressEvent(QMouseEvent *event);
+  void mousePressEvent(QMouseEvent *event) override;
 };
 
 #endif  // CLICKABLELABEL_H

src/widgets/fancytabwidget.cpp

@@ -72,7 +72,7 @@ class FancyTabBar: public QTabBar {
     setMouseTracking(true);
   }
 
-  QSize sizeHint() const {
+  QSize sizeHint() const override {
 
     QSize size(QTabBar::sizeHint());
 
@@ -93,7 +93,7 @@ class FancyTabBar: public QTabBar {
   }
 
  protected:
-  QSize tabSizeHint(int index) const {
+  QSize tabSizeHint(int index) const override {
 
     FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
     QSize size = FancyTabWidget::TabSize_LargeSidebar;
@@ -107,13 +107,13 @@ class FancyTabBar: public QTabBar {
 
   }
 
-  void leaveEvent(QEvent *event) {
+  void leaveEvent(QEvent *event) override {
     Q_UNUSED(event);
     mouseHoverTabIndex = -1;
     update();
   }
 
-  void mouseMoveEvent(QMouseEvent *event) {
+  void mouseMoveEvent(QMouseEvent *event) override {
 
     QPoint pos = event->pos();
 
@@ -124,7 +124,7 @@ class FancyTabBar: public QTabBar {
 
   }
 
-  void paintEvent(QPaintEvent *pe) {
+  void paintEvent(QPaintEvent *pe) override {
 
     FancyTabWidget *tabWidget = qobject_cast<FancyTabWidget*>(parentWidget());
 
@@ -309,7 +309,7 @@ class TabData : public QObject {
     layout->addWidget(widget_view_);
     page_->setLayout(layout);
   }
-  ~TabData() {
+  ~TabData() override {
     //delete page_;
   }
 
@@ -330,8 +330,6 @@ class TabData : public QObject {
 
 };
 
-FancyTabWidget::~FancyTabWidget() {}
-
 // Spacers are just disabled pages
 void FancyTabWidget::addSpacer() {
 

src/widgets/fancytabwidget.h

@@ -45,70 +45,70 @@ namespace Internal {
 class FancyTabWidget : public QTabWidget {
   Q_OBJECT
 
-  ~FancyTabWidget();
+ public:
+  explicit FancyTabWidget(QWidget *parent = nullptr);
 
-  public:
-    explicit FancyTabWidget(QWidget *parent = nullptr);
-    void AddTab(QWidget *widget_view, const QString &name, const QIcon &icon, const QString &label);
-    bool EnableTab(QWidget *widget_view);
-    bool DisableTab(QWidget *widget_view);
-    int insertTab(const int idx, QWidget *page, const QIcon &icon, const QString &label);
-    void addBottomWidget(QWidget* widget_view);
+  void AddTab(QWidget *widget_view, const QString &name, const QIcon &icon, const QString &label);
+   bool EnableTab(QWidget *widget_view);
+   bool DisableTab(QWidget *widget_view);
+   int insertTab(const int idx, QWidget *page, const QIcon &icon, const QString &label);
+   void addBottomWidget(QWidget* widget_view);
 
-    void setBackgroundPixmap(const QPixmap& pixmap);
-    void addSpacer();
+   void setBackgroundPixmap(const QPixmap& pixmap);
+   void addSpacer();
 
-    void Load(const QString &kSettingsGroup);
-    void SaveSettings(const QString &kSettingsGroup);
-    void ReloadSettings();
+   void Load(const QString &kSettingsGroup);
+   void SaveSettings(const QString &kSettingsGroup);
+   void ReloadSettings();
 
-    // Values are persisted - only add to the end
-    enum Mode {
-      Mode_None = 0,
-      Mode_LargeSidebar,
-      Mode_SmallSidebar,
-      Mode_Tabs,
-      Mode_IconOnlyTabs,
-      Mode_PlainSidebar,
-    };
+   // Values are persisted - only add to the end
+  enum Mode {
+    Mode_None = 0,
+    Mode_LargeSidebar,
+    Mode_SmallSidebar,
+    Mode_Tabs,
+    Mode_IconOnlyTabs,
+    Mode_PlainSidebar,
+   };
 
-    static const QSize TabSize_LargeSidebar;
+   static const QSize TabSize_LargeSidebar;
 
-    static const QSize IconSize_LargeSidebar;
-    static const QSize IconSize_SmallSidebar;
+   static const QSize IconSize_LargeSidebar;
+   static const QSize IconSize_SmallSidebar;
 
-    Mode mode() { return mode_; }
+   Mode mode() { return mode_; }
 
   signals:
-    void ModeChanged(FancyTabWidget::Mode mode);
-    void CurrentChanged(int);
+   void ModeChanged(FancyTabWidget::Mode mode);
+   void CurrentChanged(int);
 
   public slots:
-    void setCurrentIndex(int idx);
-    void SetMode(Mode mode);
-    // Mapper mapped signal needs this convenience function 
-    void SetMode(int mode) { SetMode(Mode(mode)); }
+   void setCurrentIndex(int idx);
+   void SetMode(Mode mode);
+   // Mapper mapped signal needs this convenience function
+   void SetMode(int mode) { SetMode(Mode(mode)); }
 
   private slots:
-    void tabBarUpdateGeometry();
-    void currentTabChanged(int);
+   void tabBarUpdateGeometry();
+   void currentTabChanged(int);
 
   protected:
-    void paintEvent(QPaintEvent *);
-    void contextMenuEvent(QContextMenuEvent* e);
+   void paintEvent(QPaintEvent*) override;
+   void contextMenuEvent(QContextMenuEvent* e) override;
+
   private:
-    void addMenuItem(QActionGroup* group, const QString& text, Mode mode);
+   void addMenuItem(QActionGroup* group, const QString& text, Mode mode);
 
-    QPixmap background_pixmap_;
-    QMenu* menu_;
-    Mode mode_;
-    QWidget *bottom_widget_;
+   QPixmap background_pixmap_;
+   QMenu* menu_;
+   Mode mode_;
+   QWidget *bottom_widget_;
 
-    QMap <QWidget*, TabData*> tabs_;
+   QMap <QWidget*, TabData*> tabs_;
 
-    bool bg_color_system_;
-    bool bg_gradient_;
-    QColor bg_color_;
+   bool bg_color_system_;
+   bool bg_gradient_;
+   QColor bg_color_;
 
 };
 

src/widgets/favoritewidget.h

@@ -39,14 +39,14 @@ class FavoriteWidget : public QWidget {
   // Change the value if different from the current one and then update display and emit FavoriteStateChanged signal
   void SetFavorite(bool favorite);
 
-  QSize sizeHint() const;
+  QSize sizeHint() const override;
 
  signals:
   void FavoriteStateChanged(int, bool);
 
  protected:
-  void paintEvent(QPaintEvent *e);
-  void mouseReleaseEvent(QMouseEvent *e);
+  void paintEvent(QPaintEvent *e) override;
+  void mouseReleaseEvent(QMouseEvent *e) override;
 
  private:
   static const int kStarSize;

src/widgets/fileview.h

@@ -51,15 +51,16 @@ class FileView : public QWidget {
 
  public:
   explicit FileView(QWidget *parent = nullptr);
-  ~FileView();
+  ~FileView() override;
 
   static const char *kFileFilter;
 
   void SetPath(const QString &path);
   void SetTaskManager(TaskManager *task_manager);
 
-  void showEvent(QShowEvent*);
-  void keyPressEvent(QKeyEvent *e);
+ protected:
+  void showEvent(QShowEvent*) override;
+  void keyPressEvent(QKeyEvent *e) override;
 
  signals:
   void PathChanged(const QString &path);
@@ -90,8 +91,8 @@ class FileView : public QWidget {
 
     QString undo_path() const { return old_state_.path; }
 
-    void undo();
-    void redo();
+    void undo() override;
+    void redo() override;
 
    private:
     struct State {

src/widgets/fileviewlist.h

@@ -45,7 +45,7 @@ class FileViewList : public QListView {
  public:
   explicit FileViewList(QWidget *parent = nullptr);
 
-  void mousePressEvent(QMouseEvent *e);
+  void mousePressEvent(QMouseEvent *e) override;
 
  signals:
   void AddToPlaylist(QMimeData *data);
@@ -58,7 +58,7 @@ class FileViewList : public QListView {
   void Forward();
 
  protected:
-  void contextMenuEvent(QContextMenuEvent *e);
+  void contextMenuEvent(QContextMenuEvent *e) override;
 
  private slots:
   void LoadSlot();

src/widgets/forcescrollperpixel.h

@@ -35,7 +35,7 @@ class ForceScrollPerPixel : public QObject {
   explicit ForceScrollPerPixel(QAbstractItemView *item_view, QObject *parent = nullptr);
 
  protected:
-  bool eventFilter(QObject *object, QEvent *event);
+  bool eventFilter(QObject *object, QEvent *event) override;
 
  private:
   QAbstractItemView *item_view_;

src/widgets/freespacebar.h

@@ -64,10 +64,10 @@ class FreeSpaceBar : public QWidget {
   void set_additional_text(const QString& text) { additional_text_ = text; update(); }
   void set_used_text(const QString& text) { used_text_ = text; update(); }
 
-  QSize sizeHint() const;
+  QSize sizeHint() const override;
 
  protected:
-  void paintEvent(QPaintEvent*);
+  void paintEvent(QPaintEvent*) override;
 
  private:
   struct Label {

src/widgets/groupediconview.h

@@ -78,8 +78,8 @@ class GroupedIconView : public QListView {
   void set_header_text(const QString &value) { header_text_ = value; }
 
   // QAbstractItemView
-  QModelIndex moveCursor(CursorAction action, Qt::KeyboardModifiers modifiers);
-  void setModel(QAbstractItemModel *model);
+  QModelIndex moveCursor(CursorAction action, Qt::KeyboardModifiers modifiers) override;
+  void setModel(QAbstractItemModel *model) override;
 
   static void DrawHeader(QPainter *painter, const QRect &rect, const QFont &font, const QPalette &palette, const QString &text);
 
@@ -87,16 +87,16 @@ class GroupedIconView : public QListView {
   virtual int header_height() const;
 
   // QWidget
-  void paintEvent(QPaintEvent *e);
-  void resizeEvent(QResizeEvent *e);
+  void paintEvent(QPaintEvent *e) override;
+  void resizeEvent(QResizeEvent *e) override;
 
   // QAbstractItemView
-  void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int>& = QVector<int>());
-  QModelIndex indexAt(const QPoint &p) const;
-  void rowsInserted(const QModelIndex &parent, int start, int end);
-  void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command);
-  QRect visualRect(const QModelIndex &index) const;
-  QRegion visualRegionForSelection(const QItemSelection &selection) const;
+  void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int>& = QVector<int>()) override;
+  QModelIndex indexAt(const QPoint &p) const override;
+  void rowsInserted(const QModelIndex &parent, int start, int end) override;
+  void setSelection(const QRect &rect, QItemSelectionModel::SelectionFlags command) override;
+  QRect visualRect(const QModelIndex &index) const override;
+  QRegion visualRegionForSelection(const QItemSelection &selection) const override;
 
  private slots:
   void LayoutItems();

src/widgets/lineedit.h

@@ -62,13 +62,13 @@ class LineEditInterface {
 class ExtendedEditor : public LineEditInterface {
  public:
   explicit ExtendedEditor(QWidget *widget, int extra_right_padding = 0, bool draw_hint = true);
-  virtual ~ExtendedEditor() {}
+  ~ExtendedEditor() override {}
 
   virtual bool is_empty() const { return text().isEmpty(); }
 
-  QString hint() const { return hint_; }
-  void set_hint(const QString& hint);
-  void clear_hint() { set_hint(QString()); }
+  QString hint() const override { return hint_; }
+  void set_hint(const QString& hint) override;
+  void clear_hint() override { set_hint(QString()); }
 
   bool has_clear_button() const { return has_clear_button_; }
   void set_clear_button(bool visible);
@@ -111,14 +111,14 @@ class LineEdit : public QLineEdit, public ExtendedEditor {
   explicit LineEdit(QWidget *parent = nullptr);
 
   // ExtendedEditor
-  void set_focus() { QLineEdit::setFocus(); }
-  QString text() const { return QLineEdit::text(); }
-  void set_text(const QString& text) { QLineEdit::setText(text); }
-  void set_enabled(bool enabled) { QLineEdit::setEnabled(enabled); }
+  void set_focus() override { QLineEdit::setFocus(); }
+  QString text() const override { return QLineEdit::text(); }
+  void set_text(const QString& text) override { QLineEdit::setText(text); }
+  void set_enabled(bool enabled) override { QLineEdit::setEnabled(enabled); }
 
  protected:
-  void paintEvent(QPaintEvent*);
-  void resizeEvent(QResizeEvent*);
+  void paintEvent(QPaintEvent*) override;
+  void resizeEvent(QResizeEvent*) override;
 
  private:
   bool is_rtl() const { return is_rtl_; }
@@ -141,14 +141,14 @@ class TextEdit : public QPlainTextEdit, public ExtendedEditor {
   explicit TextEdit(QWidget *parent = nullptr);
 
   // ExtendedEditor
-  void set_focus() { QPlainTextEdit::setFocus(); }
-  QString text() const { return QPlainTextEdit::toPlainText(); }
-  void set_text(const QString& text) { QPlainTextEdit::setPlainText(text); }
-  void set_enabled(bool enabled) { QPlainTextEdit::setEnabled(enabled); }
+  void set_focus() override { QPlainTextEdit::setFocus(); }
+  QString text() const override { return QPlainTextEdit::toPlainText(); }
+  void set_text(const QString& text) override { QPlainTextEdit::setPlainText(text); }
+  void set_enabled(bool enabled) override { QPlainTextEdit::setEnabled(enabled); }
 
  protected:
-  void paintEvent(QPaintEvent*);
-  void resizeEvent(QResizeEvent*);
+  void paintEvent(QPaintEvent*) override;
+  void resizeEvent(QResizeEvent*) override;
 
  signals:
   void Reset();
@@ -164,18 +164,18 @@ class SpinBox : public QSpinBox, public ExtendedEditor {
   explicit SpinBox(QWidget *parent = nullptr);
 
   // QSpinBox
-  QString textFromValue(int val) const;
+  QString textFromValue(int val) const override;
 
   // ExtendedEditor
-  bool is_empty() const { return text().isEmpty() || text() == "0"; }
-  void set_focus() { QSpinBox::setFocus(); }
-  QString text() const { return QSpinBox::text(); }
-  void set_text(const QString& text) { QSpinBox::setValue(text.toInt()); }
-  void set_enabled(bool enabled) { QSpinBox::setEnabled(enabled); }
+  bool is_empty() const override { return text().isEmpty() || text() == "0"; }
+  void set_focus() override { QSpinBox::setFocus(); }
+  QString text() const override { return QSpinBox::text(); }
+  void set_text(const QString& text) override { QSpinBox::setValue(text.toInt()); }
+  void set_enabled(bool enabled) override { QSpinBox::setEnabled(enabled); }
 
  protected:
-  void paintEvent(QPaintEvent*);
-  void resizeEvent(QResizeEvent*);
+  void paintEvent(QPaintEvent*) override;
+  void resizeEvent(QResizeEvent*) override;
 
  signals:
   void Reset();

src/widgets/linetextedit.h

@@ -37,11 +37,11 @@ class LineTextEdit : public QTextEdit {
  public:
   explicit LineTextEdit(QWidget *parent = nullptr);
 
-  QSize sizeHint() const;
-  QSize minimumSizeHint() const;
+  QSize sizeHint() const override;
+  QSize minimumSizeHint() const override;
 
  protected:
-  void keyPressEvent(QKeyEvent *e);
+  void keyPressEvent(QKeyEvent *e) override;
 };
 
 #endif  // LINETEXTEDIT_H

src/widgets/loginstatewidget.h

@@ -37,7 +37,7 @@ class LoginStateWidget : public QWidget {
 
  public:
   explicit LoginStateWidget(QWidget *parent = nullptr);
-  ~LoginStateWidget();
+  ~LoginStateWidget() override;
 
   enum State { LoggedIn, LoginInProgress, LoggedOut };
 
@@ -49,7 +49,7 @@ class LoginStateWidget : public QWidget {
   void AddCredentialGroup(QWidget *widget);
 
   // QObject
-  bool eventFilter(QObject *object, QEvent *event);
+  bool eventFilter(QObject *object, QEvent *event) override;
 
  public slots:
   // Changes the "You are logged in/out" label, shows/hides any QGroupBoxes added with AddCredentialGroup.

src/widgets/multiloadingindicator.h

@@ -45,13 +45,13 @@ class MultiLoadingIndicator : public QWidget {
 
   void SetTaskManager(TaskManager* task_manager);
 
-  QSize sizeHint() const;
+  QSize sizeHint() const override;
 
  signals:
   void TaskCountChange(int tasks);
 
  protected:
-  void paintEvent(QPaintEvent *);
+  void paintEvent(QPaintEvent *) override;
 
  private slots:
   void UpdateText();

src/widgets/osd.h

@@ -51,7 +51,7 @@ class OSD : public QObject {
 
  public:
   explicit OSD(SystemTrayIcon *tray_icon, Application *app, QObject *parent = nullptr);
-  ~OSD();
+  ~OSD() override;
 
   static const char *kSettingsGroup;
 

src/widgets/osdpretty.h

@@ -57,7 +57,7 @@ class OSDPretty : public QWidget {
   };
 
   explicit OSDPretty(Mode mode, QWidget *parent = nullptr);
-  ~OSDPretty();
+  ~OSDPretty() override;
 
   static const char *kSettingsGroup;
 
@@ -102,7 +102,7 @@ class OSDPretty : public QWidget {
   QPoint current_pos() const;
 
   // QWidget
-  void setVisible(bool visible);
+  void setVisible(bool visible) override;
 
   bool toggle_mode() const { return toggle_mode_; }
   void set_toggle_mode(bool toggle_mode) { toggle_mode_ = toggle_mode; }
@@ -114,13 +114,13 @@ class OSDPretty : public QWidget {
   void ReloadSettings();
 
  protected:
-  void paintEvent(QPaintEvent *e);
-  void enterEvent(QEvent *e);
-  void leaveEvent(QEvent *e);
-  void mousePressEvent(QMouseEvent *e);
-  void showEvent(QShowEvent *e);
-  void mouseMoveEvent(QMouseEvent *e);
-  void mouseReleaseEvent(QMouseEvent *e);
+  void paintEvent(QPaintEvent *e) override;
+  void enterEvent(QEvent *e) override;
+  void leaveEvent(QEvent *e) override;
+  void mousePressEvent(QMouseEvent *e) override;
+  void showEvent(QShowEvent *e) override;
+  void mouseMoveEvent(QMouseEvent *e) override;
+  void mouseReleaseEvent(QMouseEvent *e) override;
 
  private:
   void Reposition();

src/widgets/playingwidget.cpp

@@ -125,8 +125,6 @@ PlayingWidget::PlayingWidget(QWidget *parent)
 
 }
 
-PlayingWidget::~PlayingWidget() {}
-
 void PlayingWidget::Init(Application *app, AlbumCoverChoiceController *album_cover_choice_controller) {
 
   app_ = app;

src/widgets/playingwidget.h

@@ -60,7 +60,6 @@ class PlayingWidget : public QWidget {
 
  public:
   explicit PlayingWidget(QWidget *parent = nullptr);
-  ~PlayingWidget();
 
   void Init(Application *app, AlbumCoverChoiceController *album_cover_choice_controller);
   bool IsEnabled() { return enabled_; }
@@ -68,7 +67,7 @@ class PlayingWidget : public QWidget {
   void SetEnabled();
   void SetDisabled();
   void set_ideal_height(int height);
-  QSize sizeHint() const;
+  QSize sizeHint() const override;
   bool show_above_status_bar() const { return above_statusbar_action_->isChecked(); }
 
  signals:
@@ -82,12 +81,12 @@ class PlayingWidget : public QWidget {
   void SearchCoverInProgress();
 
  protected:
-  void paintEvent(QPaintEvent *e);
-  void resizeEvent(QResizeEvent*);
-  void contextMenuEvent(QContextMenuEvent *e);
-  void mouseDoubleClickEvent(QMouseEvent*);
-  void dragEnterEvent(QDragEnterEvent *e);
-  void dropEvent(QDropEvent *e);
+  void paintEvent(QPaintEvent *e) override;
+  void resizeEvent(QResizeEvent*) override;
+  void contextMenuEvent(QContextMenuEvent *e) override;
+  void mouseDoubleClickEvent(QMouseEvent*) override;
+  void dragEnterEvent(QDragEnterEvent *e) override;
+  void dropEvent(QDropEvent *e) override;
 
  private slots:
   void SetMode(int mode);

src/widgets/qsearchfield.h

@@ -32,8 +32,8 @@ signals:
   void returnPressed();
 
 protected:
-  void resizeEvent(QResizeEvent*);
-  bool eventFilter(QObject*, QEvent*);
+  void resizeEvent(QResizeEvent*) override;
+  bool eventFilter(QObject*, QEvent*) override;
 
 private:
   friend class QSearchFieldPrivate;

src/widgets/renametablineedit.h

@@ -43,8 +43,8 @@ class RenameTabLineEdit : public QLineEdit {
  public slots:
 
  protected:
-  void focusOutEvent(QFocusEvent* e);
-  void keyPressEvent(QKeyEvent* e);
+  void focusOutEvent(QFocusEvent* e) override;
+  void keyPressEvent(QKeyEvent* e) override;
 };
 
 #endif  // RENAMETABLINEEDIT_H

src/widgets/stickyslider.h

@@ -44,7 +44,7 @@ class StickySlider : public QSlider {
   void set_sticky_threshold(int threshold) { sticky_threshold_ = threshold; }
 
  protected:
-  void mouseMoveEvent(QMouseEvent* e);
+  void mouseMoveEvent(QMouseEvent* e) override;
 
  private:
   int sticky_center_;

src/widgets/stretchheaderview.h

@@ -46,7 +46,7 @@ class StretchHeaderView : public QHeaderView {
   static const int kMinimumColumnWidth;
   static const int kMagicNumber;
 
-  void setModel(QAbstractItemModel *model);
+  void setModel(QAbstractItemModel *model) override;
 
   // Serialises the proportional and actual column widths.
   // Use these instead of QHeaderView::restoreState and QHeaderView::saveState to persist the proportional values directly and avoid floating point errors over time.
@@ -80,8 +80,8 @@ class StretchHeaderView : public QHeaderView {
 
  protected:
   // QWidget
-  void mouseMoveEvent(QMouseEvent *e);
-  void resizeEvent(QResizeEvent *event);
+  void mouseMoveEvent(QMouseEvent *e) override;
+  void resizeEvent(QResizeEvent *event) override;
 
  private:
   // Scales column_widths_ values so the total is 1.0.

src/widgets/trackslider.h

@@ -42,22 +42,21 @@ class TrackSlider : public QWidget {
 
  public:
   explicit TrackSlider(QWidget* parent = nullptr);
-  ~TrackSlider();
+  ~TrackSlider() override;
 
   void SetApplication(Application* app);
 
   // QWidget
-  QSize sizeHint() const;
+  QSize sizeHint() const override;
 
   // QObject
-  bool event(QEvent *);
+  bool event(QEvent*) override;
 
 #ifdef HAVE_MOODBAR
   MoodbarProxyStyle *moodbar_style() const { return moodbar_style_; }
 #endif
 
-
-  static const char* kSettingsGroup;
+  static const char *kSettingsGroup;
 
  public slots:
   void SetValue(int elapsed, int total);

src/widgets/tracksliderpopup.h

@@ -47,7 +47,7 @@ public:
   void SetPopupPosition(const QPoint& pos);
 
  protected:
-  void paintEvent(QPaintEvent*);
+  void paintEvent(QPaintEvent*) override;
 
  private:
   static const int kTextMargin;

src/widgets/tracksliderslider.h

@@ -41,7 +41,7 @@ class TrackSliderSlider : public QSlider {
   Q_OBJECT
 
  public:
-  explicit TrackSliderSlider(QWidget* parent = nullptr);
+  explicit TrackSliderSlider(QWidget *parent = nullptr);
 
  signals:
   void SeekForward();
@@ -50,13 +50,13 @@ class TrackSliderSlider : public QSlider {
   void Next();
 
  protected:
-  void mousePressEvent(QMouseEvent* e);
-  void mouseReleaseEvent(QMouseEvent* e);
-  void mouseMoveEvent(QMouseEvent* e);
-  void wheelEvent(QWheelEvent *e);
-  void enterEvent(QEvent*);
-  void leaveEvent(QEvent*);
-  void keyPressEvent(QKeyEvent* event);
+  void mousePressEvent(QMouseEvent* e) override;
+  void mouseReleaseEvent(QMouseEvent* e) override;
+  void mouseMoveEvent(QMouseEvent* e) override;
+  void wheelEvent(QWheelEvent *e) override;
+  void enterEvent(QEvent*) override;
+  void leaveEvent(QEvent*) override;
+  void keyPressEvent(QKeyEvent* event) override;
 
  private slots:
   void UpdateDeltaTime();

src/widgets/volumeslider.h

@@ -50,15 +50,15 @@ class SliderSlider : public QSlider {
   // WARNING non-virtual - and thus only really intended for internal use this is a major flaw in the class presently, however it suits our current needs fine
   int value() const { return adjustValue(QSlider::value()); }
 
-signals:
+ signals:
   // we emit this when the user has specifically changed the slider so connect to it if valueChanged() is too generic Qt also emits valueChanged(int)
   void sliderReleased(int);
 
  protected:
-  virtual void wheelEvent(QWheelEvent*);
-  virtual void mouseMoveEvent(QMouseEvent*);
-  virtual void mouseReleaseEvent(QMouseEvent*);
-  virtual void mousePressEvent(QMouseEvent*);
+  void wheelEvent(QWheelEvent*) override;
+  void mouseMoveEvent(QMouseEvent*) override;
+  void mouseReleaseEvent(QMouseEvent*) override;
+  void mousePressEvent(QMouseEvent*) override;
   virtual void slideEvent(QMouseEvent*);
 
   bool m_sliding;
@@ -89,8 +89,8 @@ class PrettySlider : public SliderSlider {
   explicit PrettySlider(Qt::Orientation orientation, SliderMode mode, QWidget* parent, uint max = 0);
 
  protected:
-  virtual void slideEvent(QMouseEvent*);
-  virtual void mousePressEvent(QMouseEvent*);
+  void slideEvent(QMouseEvent*) override;
+  void mousePressEvent(QMouseEvent*) override;
 
  private:
   PrettySlider(const PrettySlider&);             // undefined
@@ -107,14 +107,14 @@ class VolumeSlider : public SliderSlider {
   void SetEnabled(const bool enabled);
 
  protected:
-  virtual void paintEvent(QPaintEvent*);
-  virtual void enterEvent(QEvent*);
-  virtual void leaveEvent(QEvent*);
+  void paintEvent(QPaintEvent*) override;
+  void enterEvent(QEvent*) override;
+  void leaveEvent(QEvent*) override;
   virtual void paletteChange(const QPalette&);
-  virtual void slideEvent(QMouseEvent*);
-  virtual void mousePressEvent(QMouseEvent*);
-  virtual void contextMenuEvent(QContextMenuEvent*);
-  virtual void wheelEvent(QWheelEvent* e);
+  void slideEvent(QMouseEvent*) override;
+  void mousePressEvent(QMouseEvent*) override;
+  void contextMenuEvent(QContextMenuEvent*) override;
+  void wheelEvent(QWheelEvent* e) override;
 
  private slots:
   virtual void slotAnimTimer();