refactor: Use override instead of virtual where possible (#4917)

src/widgets/helper/Button.hpp

@@ -69,10 +69,10 @@ protected:
 #else
     void enterEvent(QEvent * /*event*/) override;
 #endif
-    virtual void leaveEvent(QEvent *) override;
-    virtual void mousePressEvent(QMouseEvent *event) override;
-    virtual void mouseReleaseEvent(QMouseEvent *event) override;
-    virtual void mouseMoveEvent(QMouseEvent *event) override;
+    void leaveEvent(QEvent *) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 
     void fancyPaint(QPainter &painter);
 

src/widgets/helper/ComboBoxItemDelegate.hpp

@@ -12,14 +12,14 @@ class ComboBoxItemDelegate : public QStyledItemDelegate
 
 public:
     ComboBoxItemDelegate(QObject *parent = nullptr);
-    ~ComboBoxItemDelegate();
+    ~ComboBoxItemDelegate() override;
 
-    virtual QWidget *createEditor(QWidget *parent,
-                                  const QStyleOptionViewItem &option,
-                                  const QModelIndex &index) const;
-    virtual void setEditorData(QWidget *editor, const QModelIndex &index) const;
-    virtual void setModelData(QWidget *editor, QAbstractItemModel *model,
-                              const QModelIndex &index) const;
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
+                          const QModelIndex &index) const override;
+    void setEditorData(QWidget *editor,
+                       const QModelIndex &index) const override;
+    void setModelData(QWidget *editor, QAbstractItemModel *model,
+                      const QModelIndex &index) const override;
 };
 
 }  // namespace chatterino

src/widgets/helper/Line.hpp

@@ -23,7 +23,7 @@ public:
         }
     }
 
-    virtual void paintEvent(QPaintEvent *)
+    void paintEvent(QPaintEvent *) override
     {
         QPainter painter(this);
 

src/widgets/helper/NotebookButton.hpp

@@ -21,15 +21,15 @@ public:
     Icon getIcon() const;
 
 protected:
-    virtual void themeChangedEvent() override;
-    virtual void paintEvent(QPaintEvent *) override;
-    virtual void mouseReleaseEvent(QMouseEvent *) override;
-    virtual void dragEnterEvent(QDragEnterEvent *) override;
-    virtual void dragLeaveEvent(QDragLeaveEvent *) override;
-    virtual void dropEvent(QDropEvent *) override;
+    void themeChangedEvent() override;
+    void paintEvent(QPaintEvent *) override;
+    void mouseReleaseEvent(QMouseEvent *) override;
+    void dragEnterEvent(QDragEnterEvent *) override;
+    void dragLeaveEvent(QDragLeaveEvent *) override;
+    void dropEvent(QDropEvent *) override;
 
-    virtual void hideEvent(QHideEvent *) override;
-    virtual void showEvent(QShowEvent *) override;
+    void hideEvent(QHideEvent *) override;
+    void showEvent(QShowEvent *) override;
 
 signals:
     void leftClicked();

src/widgets/helper/NotebookTab.hpp

@@ -65,24 +65,24 @@ public:
     int normalTabWidth();
 
 protected:
-    virtual void themeChangedEvent() override;
+    void themeChangedEvent() override;
 
-    virtual void paintEvent(QPaintEvent *) override;
+    void paintEvent(QPaintEvent *) override;
 
-    virtual void mousePressEvent(QMouseEvent *event) override;
-    virtual void mouseReleaseEvent(QMouseEvent *event) override;
-    virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     void enterEvent(QEnterEvent *event) override;
 #else
     void enterEvent(QEvent *event) override;
 #endif
-    virtual void leaveEvent(QEvent *) override;
+    void leaveEvent(QEvent *) override;
 
-    virtual void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragEnterEvent(QDragEnterEvent *event) override;
 
-    virtual void mouseMoveEvent(QMouseEvent *event) override;
-    virtual void wheelEvent(QWheelEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
 
 private:
     void showRenameDialog();

src/widgets/helper/QColorPicker.hpp

@@ -56,7 +56,7 @@ class QColorPicker : public QFrame
     Q_OBJECT
 public:
     QColorPicker(QWidget *parent);
-    ~QColorPicker();
+    ~QColorPicker() override;
     void setCrossVisible(bool visible);
 
 public slots:
@@ -91,7 +91,7 @@ class QColorLuminancePicker : public QWidget
     Q_OBJECT
 public:
     QColorLuminancePicker(QWidget *parent = 0);
-    ~QColorLuminancePicker();
+    ~QColorLuminancePicker() override;
 
 public slots:
     void setCol(int h, int s, int v);

src/widgets/helper/SettingsDialogTab.hpp

@@ -40,8 +40,8 @@ signals:
     void selectedChanged(bool);
 
 private:
-    void paintEvent(QPaintEvent *);
-    void mousePressEvent(QMouseEvent *event);
+    void paintEvent(QPaintEvent *) override;
+    void mousePressEvent(QMouseEvent *event) override;
 
     struct {
         QString labelText;

src/widgets/helper/SignalLabel.hpp

@@ -13,7 +13,7 @@ class SignalLabel : public QLabel
 
 public:
     explicit SignalLabel(QWidget *parent = nullptr, Qt::WindowFlags f = {});
-    virtual ~SignalLabel() override = default;
+    ~SignalLabel() override = default;
 
 signals:
     void mouseDoubleClick(QMouseEvent *ev);