Add Q_DECL_OVERRIDE in the src subdirectory

Done automatically with clang-modernize on linux

(But does not add Q_DECL_OVERRIDE to the function that are marked
 as inline because it a compilation error with MSVC2010)

Change-Id: I2196ee26e3e6fe20816834ecea5ea389eeab3171
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

19 files changed, 117 insertions, 117 deletions

diff --git a/src/widgets/kernel/qaction.h b/src/widgets/kernel/qaction.h
index 15364b4785..4fc4b424f6 100644
--- a/src/widgets/kernel/qaction.h
+++ b/src/widgets/kernel/qaction.h
@@ -170,7 +170,7 @@ public:
 #endif
 
 protected:
-    bool event(QEvent *);
+    bool event(QEvent *) Q_DECL_OVERRIDE;
     QAction(QActionPrivate &dd, QObject *parent);
 
 public Q_SLOTS:
diff --git a/src/widgets/kernel/qapplication.h b/src/widgets/kernel/qapplication.h
index ceba0c96c4..560a619549 100644
--- a/src/widgets/kernel/qapplication.h
+++ b/src/widgets/kernel/qapplication.h
@@ -178,7 +178,7 @@ public:
 #endif
 
     static int exec();
-    bool notify(QObject *, QEvent *);
+    bool notify(QObject *, QEvent *) Q_DECL_OVERRIDE;
 
 #ifdef QT_KEYPAD_NAVIGATION
     static Q_DECL_DEPRECATED void setKeypadNavigationEnabled(bool);
@@ -206,8 +206,8 @@ public Q_SLOTS:
     static void aboutQt();
 
 protected:
-    bool event(QEvent *);
-    bool compressEvent(QEvent *, QObject *receiver, QPostEventList *);
+    bool event(QEvent *) Q_DECL_OVERRIDE;
+    bool compressEvent(QEvent *, QObject *receiver, QPostEventList *) Q_DECL_OVERRIDE;
 
 private:
     Q_DISABLE_COPY(QApplication)
diff --git a/src/widgets/kernel/qapplication_p.h b/src/widgets/kernel/qapplication_p.h
index b24b592fbe..809c7ccd66 100644
--- a/src/widgets/kernel/qapplication_p.h
+++ b/src/widgets/kernel/qapplication_p.h
@@ -108,10 +108,10 @@ public:
     QApplicationPrivate(int &argc, char **argv, int flags);
     ~QApplicationPrivate();
 
-    virtual void notifyLayoutDirectionChange();
-    virtual void notifyActiveWindowChange(QWindow *);
+    virtual void notifyLayoutDirectionChange() Q_DECL_OVERRIDE;
+    virtual void notifyActiveWindowChange(QWindow *) Q_DECL_OVERRIDE;
 
-    virtual bool shouldQuit();
+    virtual bool shouldQuit() Q_DECL_OVERRIDE;
     bool tryCloseAllWindows() Q_DECL_OVERRIDE;
 
 #if defined(Q_WS_X11)
@@ -127,7 +127,7 @@ public:
     static QString desktopStyleKey();
 
 
-    void createEventDispatcher();
+    void createEventDispatcher() Q_DECL_OVERRIDE;
     static void dispatchEnterLeave(QWidget *enter, QWidget *leave, const QPointF &globalPosF);
 
     void notifyWindowIconChanged() Q_DECL_OVERRIDE;
@@ -189,9 +189,9 @@ public:
     static QPalette *set_pal;
 
 protected:
-    void notifyThemeChanged();
+    void notifyThemeChanged() Q_DECL_OVERRIDE;
 #ifndef QT_NO_DRAGANDDROP
-    void notifyDragStarted(const QDrag *);
+    void notifyDragStarted(const QDrag *) Q_DECL_OVERRIDE;
 #endif // QT_NO_DRAGANDDROP
 
 public:
@@ -290,7 +290,7 @@ public:
                                        ulong timestamp);
     static void translateTouchCancel(QTouchDevice *device, ulong timestamp);
 
-    QPixmap applyQIconStyleHelper(QIcon::Mode mode, const QPixmap& base) const;
+    QPixmap applyQIconStyleHelper(QIcon::Mode mode, const QPixmap& base) const Q_DECL_OVERRIDE;
 private:
     static QApplicationPrivate *self;
     static bool tryCloseAllWidgetWindows(QWindowList *processedWindows);
diff --git a/src/widgets/kernel/qboxlayout.h b/src/widgets/kernel/qboxlayout.h
index c2da23f34c..9c83248773 100644
--- a/src/widgets/kernel/qboxlayout.h
+++ b/src/widgets/kernel/qboxlayout.h
@@ -67,7 +67,7 @@ public:
     void addWidget(QWidget *, int stretch = 0, Qt::Alignment alignment = 0);
     void addLayout(QLayout *layout, int stretch = 0);
     void addStrut(int);
-    void addItem(QLayoutItem *);
+    void addItem(QLayoutItem *) Q_DECL_OVERRIDE;
 
     void insertSpacing(int index, int size);
     void insertStretch(int index, int stretch = 0);
@@ -84,20 +84,20 @@ public:
     void setStretch(int index, int stretch);
     int stretch(int index) const;
 
-    QSize sizeHint() const;
-    QSize minimumSize() const;
-    QSize maximumSize() const;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSize() const Q_DECL_OVERRIDE;
+    QSize maximumSize() const Q_DECL_OVERRIDE;
 
-    bool hasHeightForWidth() const;
-    int heightForWidth(int) const;
-    int minimumHeightForWidth(int) const;
+    bool hasHeightForWidth() const Q_DECL_OVERRIDE;
+    int heightForWidth(int) const Q_DECL_OVERRIDE;
+    int minimumHeightForWidth(int) const Q_DECL_OVERRIDE;
 
-    Qt::Orientations expandingDirections() const;
-    void invalidate();
-    QLayoutItem *itemAt(int) const;
-    QLayoutItem *takeAt(int);
-    int count() const;
-    void setGeometry(const QRect&);
+    Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE;
+    void invalidate() Q_DECL_OVERRIDE;
+    QLayoutItem *itemAt(int) const Q_DECL_OVERRIDE;
+    QLayoutItem *takeAt(int) Q_DECL_OVERRIDE;
+    int count() const Q_DECL_OVERRIDE;
+    void setGeometry(const QRect&) Q_DECL_OVERRIDE;
 
 private:
     Q_DISABLE_COPY(QBoxLayout)
diff --git a/src/widgets/kernel/qdesktopwidget.h b/src/widgets/kernel/qdesktopwidget.h
index e8ce49503b..322510aff4 100644
--- a/src/widgets/kernel/qdesktopwidget.h
+++ b/src/widgets/kernel/qdesktopwidget.h
@@ -79,7 +79,7 @@ Q_SIGNALS:
     void screenCountChanged(int);
 
 protected:
-    void resizeEvent(QResizeEvent *e);
+    void resizeEvent(QResizeEvent *e) Q_DECL_OVERRIDE;
 
 private:
     Q_DISABLE_COPY(QDesktopWidget)
diff --git a/src/widgets/kernel/qformlayout.h b/src/widgets/kernel/qformlayout.h
index 06100f858f..e06f1f7375 100644
--- a/src/widgets/kernel/qformlayout.h
+++ b/src/widgets/kernel/qformlayout.h
@@ -118,19 +118,19 @@ public:
     QWidget *labelForField(QLayout *field) const;
 
     // reimplemented from QLayout
-    void addItem(QLayoutItem *item);
-    QLayoutItem *itemAt(int index) const;
-    QLayoutItem *takeAt(int index);
-
-    void setGeometry(const QRect &rect);
-    QSize minimumSize() const;
-    QSize sizeHint() const;
-    void invalidate();
-
-    bool hasHeightForWidth() const;
-    int heightForWidth(int width) const;
-    Qt::Orientations expandingDirections() const;
-    int count() const;
+    void addItem(QLayoutItem *item) Q_DECL_OVERRIDE;
+    QLayoutItem *itemAt(int index) const Q_DECL_OVERRIDE;
+    QLayoutItem *takeAt(int index) Q_DECL_OVERRIDE;
+
+    void setGeometry(const QRect &rect) Q_DECL_OVERRIDE;
+    QSize minimumSize() const Q_DECL_OVERRIDE;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
+    void invalidate() Q_DECL_OVERRIDE;
+
+    bool hasHeightForWidth() const Q_DECL_OVERRIDE;
+    int heightForWidth(int width) const Q_DECL_OVERRIDE;
+    Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE;
+    int count() const Q_DECL_OVERRIDE;
 
     int rowCount() const;
 
diff --git a/src/widgets/kernel/qgridlayout.h b/src/widgets/kernel/qgridlayout.h
index 95d8a0a445..89ece8f080 100644
--- a/src/widgets/kernel/qgridlayout.h
+++ b/src/widgets/kernel/qgridlayout.h
@@ -59,9 +59,9 @@ public:
 
     ~QGridLayout();
 
-    QSize sizeHint() const;
-    QSize minimumSize() const;
-    QSize maximumSize() const;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSize() const Q_DECL_OVERRIDE;
+    QSize maximumSize() const Q_DECL_OVERRIDE;
 
     void setHorizontalSpacing(int spacing);
     int horizontalSpacing() const;
@@ -85,12 +85,12 @@ public:
 
     QRect cellRect(int row, int column) const;
 
-    bool hasHeightForWidth() const;
-    int heightForWidth(int) const;
-    int minimumHeightForWidth(int) const;
+    bool hasHeightForWidth() const Q_DECL_OVERRIDE;
+    int heightForWidth(int) const Q_DECL_OVERRIDE;
+    int minimumHeightForWidth(int) const Q_DECL_OVERRIDE;
 
-    Qt::Orientations expandingDirections() const;
-    void invalidate();
+    Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE;
+    void invalidate() Q_DECL_OVERRIDE;
 
     inline void addWidget(QWidget *w) { QLayout::addWidget(w); }
     void addWidget(QWidget *, int row, int column, Qt::Alignment = 0);
@@ -101,11 +101,11 @@ public:
     void setOriginCorner(Qt::Corner);
     Qt::Corner originCorner() const;
 
-    QLayoutItem *itemAt(int index) const;
+    QLayoutItem *itemAt(int index) const Q_DECL_OVERRIDE;
     QLayoutItem *itemAtPosition(int row, int column) const;
-    QLayoutItem *takeAt(int index);
-    int count() const;
-    void setGeometry(const QRect&);
+    QLayoutItem *takeAt(int index) Q_DECL_OVERRIDE;
+    int count() const Q_DECL_OVERRIDE;
+    void setGeometry(const QRect&) Q_DECL_OVERRIDE;
 
     void addItem(QLayoutItem *item, int row, int column, int rowSpan = 1, int columnSpan = 1, Qt::Alignment = 0);
 
@@ -113,7 +113,7 @@ public:
     void getItemPosition(int idx, int *row, int *column, int *rowSpan, int *columnSpan) const;
 
 protected:
-    void addItem(QLayoutItem *);
+    void addItem(QLayoutItem *) Q_DECL_OVERRIDE;
 
 private:
     Q_DISABLE_COPY(QGridLayout)
diff --git a/src/widgets/kernel/qlayout.h b/src/widgets/kernel/qlayout.h
index 38568e434c..79cb7a7d14 100644
--- a/src/widgets/kernel/qlayout.h
+++ b/src/widgets/kernel/qlayout.h
@@ -101,8 +101,8 @@ public:
 
     QWidget *parentWidget() const;
 
-    void invalidate();
-    QRect geometry() const;
+    void invalidate() Q_DECL_OVERRIDE;
+    QRect geometry() const Q_DECL_OVERRIDE;
     bool activate();
     void update();
 
@@ -112,16 +112,16 @@ public:
     void removeWidget(QWidget *w);
     void removeItem(QLayoutItem *);
 
-    Qt::Orientations expandingDirections() const;
-    QSize minimumSize() const;
-    QSize maximumSize() const;
-    virtual void setGeometry(const QRect&);
+    Qt::Orientations expandingDirections() const Q_DECL_OVERRIDE;
+    QSize minimumSize() const Q_DECL_OVERRIDE;
+    QSize maximumSize() const Q_DECL_OVERRIDE;
+    virtual void setGeometry(const QRect&) Q_DECL_OVERRIDE;
     virtual QLayoutItem *itemAt(int index) const = 0;
     virtual QLayoutItem *takeAt(int index) = 0;
     virtual int indexOf(QWidget *) const;
     virtual int count() const = 0;
-    bool isEmpty() const;
-    QSizePolicy::ControlTypes controlTypes() const;
+    bool isEmpty() const Q_DECL_OVERRIDE;
+    QSizePolicy::ControlTypes controlTypes() const Q_DECL_OVERRIDE;
 
     // ### Qt 6 make this function virtual
     QLayoutItem *replaceWidget(QWidget *from, QWidget *to, Qt::FindChildOptions options = Qt::FindChildrenRecursively);
@@ -130,7 +130,7 @@ public:
     QSize totalMinimumSize() const;
     QSize totalMaximumSize() const;
     QSize totalSizeHint() const;
-    QLayout *layout();
+    QLayout *layout() Q_DECL_OVERRIDE;
 
     void setEnabled(bool);
     bool isEnabled() const;
@@ -140,7 +140,7 @@ public:
 
 protected:
     void widgetEvent(QEvent *);
-    void childEvent(QChildEvent *e);
+    void childEvent(QChildEvent *e) Q_DECL_OVERRIDE;
     void addChildLayout(QLayout *l);
     void addChildWidget(QWidget *w);
     bool adoptLayout(QLayout *layout);
diff --git a/src/widgets/kernel/qshortcut.h b/src/widgets/kernel/qshortcut.h
index 86db4bcdab..0edaab7175 100644
--- a/src/widgets/kernel/qshortcut.h
+++ b/src/widgets/kernel/qshortcut.h
@@ -84,7 +84,7 @@ Q_SIGNALS:
     void activatedAmbiguously();
 
 protected:
-    bool event(QEvent *e);
+    bool event(QEvent *e) Q_DECL_OVERRIDE;
 };
 
 #endif // QT_NO_SHORTCUT
diff --git a/src/widgets/kernel/qstackedlayout.h b/src/widgets/kernel/qstackedlayout.h
index b715f02069..24d11597c9 100644
--- a/src/widgets/kernel/qstackedlayout.h
+++ b/src/widgets/kernel/qstackedlayout.h
@@ -72,20 +72,20 @@ public:
     using QLayout::widget;
 #endif
     QWidget *widget(int) const;
-    int count() const;
+    int count() const Q_DECL_OVERRIDE;
 
     StackingMode stackingMode() const;
     void setStackingMode(StackingMode stackingMode);
 
     // abstract virtual functions:
-    void addItem(QLayoutItem *item);
-    QSize sizeHint() const;
-    QSize minimumSize() const;
-    QLayoutItem *itemAt(int) const;
-    QLayoutItem *takeAt(int);
-    void setGeometry(const QRect &rect);
-    bool hasHeightForWidth() const;
-    int heightForWidth(int width) const;
+    void addItem(QLayoutItem *item) Q_DECL_OVERRIDE;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSize() const Q_DECL_OVERRIDE;
+    QLayoutItem *itemAt(int) const Q_DECL_OVERRIDE;
+    QLayoutItem *takeAt(int) Q_DECL_OVERRIDE;
+    void setGeometry(const QRect &rect) Q_DECL_OVERRIDE;
+    bool hasHeightForWidth() const Q_DECL_OVERRIDE;
+    int heightForWidth(int width) const Q_DECL_OVERRIDE;
 
 Q_SIGNALS:
     void widgetRemoved(int index);
diff --git a/src/widgets/kernel/qstandardgestures_p.h b/src/widgets/kernel/qstandardgestures_p.h
index 15ba31f26a..2f2aac45c1 100644
--- a/src/widgets/kernel/qstandardgestures_p.h
+++ b/src/widgets/kernel/qstandardgestures_p.h
@@ -57,9 +57,9 @@ class QPanGestureRecognizer : public QGestureRecognizer
 public:
     explicit QPanGestureRecognizer(int pointCount = 2) : m_pointCount(pointCount) {}
 
-    QGesture *create(QObject *target);
-    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event);
-    void reset(QGesture *state);
+    QGesture *create(QObject *target) Q_DECL_OVERRIDE;
+    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+    void reset(QGesture *state) Q_DECL_OVERRIDE;
 
 private:
     const int m_pointCount;
@@ -70,9 +70,9 @@ class QPinchGestureRecognizer : public QGestureRecognizer
 public:
     QPinchGestureRecognizer();
 
-    QGesture *create(QObject *target);
-    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event);
-    void reset(QGesture *state);
+    QGesture *create(QObject *target) Q_DECL_OVERRIDE;
+    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+    void reset(QGesture *state) Q_DECL_OVERRIDE;
 };
 
 class QSwipeGestureRecognizer : public QGestureRecognizer
@@ -80,9 +80,9 @@ class QSwipeGestureRecognizer : public QGestureRecognizer
 public:
     QSwipeGestureRecognizer();
 
-    QGesture *create(QObject *target);
-    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event);
-    void reset(QGesture *state);
+    QGesture *create(QObject *target) Q_DECL_OVERRIDE;
+    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+    void reset(QGesture *state) Q_DECL_OVERRIDE;
 };
 
 class QTapGestureRecognizer : public QGestureRecognizer
@@ -90,9 +90,9 @@ class QTapGestureRecognizer : public QGestureRecognizer
 public:
     QTapGestureRecognizer();
 
-    QGesture *create(QObject *target);
-    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event);
-    void reset(QGesture *state);
+    QGesture *create(QObject *target) Q_DECL_OVERRIDE;
+    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+    void reset(QGesture *state) Q_DECL_OVERRIDE;
 };
 
 class QTapAndHoldGestureRecognizer : public QGestureRecognizer
@@ -100,9 +100,9 @@ class QTapAndHoldGestureRecognizer : public QGestureRecognizer
 public:
     QTapAndHoldGestureRecognizer();
 
-    QGesture *create(QObject *target);
-    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event);
-    void reset(QGesture *state);
+    QGesture *create(QObject *target) Q_DECL_OVERRIDE;
+    QGestureRecognizer::Result recognize(QGesture *state, QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
+    void reset(QGesture *state) Q_DECL_OVERRIDE;
 };
 
 QT_END_NAMESPACE
diff --git a/src/widgets/kernel/qtooltip.cpp b/src/widgets/kernel/qtooltip.cpp
index 7fcc5d3bc6..bb095e2ee0 100644
--- a/src/widgets/kernel/qtooltip.cpp
+++ b/src/widgets/kernel/qtooltip.cpp
@@ -116,7 +116,7 @@ public:
     ~QTipLabel();
     static QTipLabel *instance;
 
-    bool eventFilter(QObject *, QEvent *);
+    bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
 
     QBasicTimer hideTimer, expireTimer;
 
@@ -132,10 +132,10 @@ public:
 
     static int getTipScreen(const QPoint &pos, QWidget *w);
 protected:
-    void timerEvent(QTimerEvent *e);
-    void paintEvent(QPaintEvent *e);
-    void mouseMoveEvent(QMouseEvent *e);
-    void resizeEvent(QResizeEvent *e);
+    void timerEvent(QTimerEvent *e) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *e) Q_DECL_OVERRIDE;
+    void mouseMoveEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
+    void resizeEvent(QResizeEvent *e) Q_DECL_OVERRIDE;
 
 #ifndef QT_NO_STYLE_STYLESHEET
 public slots:
diff --git a/src/widgets/kernel/qwhatsthis.cpp b/src/widgets/kernel/qwhatsthis.cpp
index 632cb242dc..b4d18844a9 100644
--- a/src/widgets/kernel/qwhatsthis.cpp
+++ b/src/widgets/kernel/qwhatsthis.cpp
@@ -141,12 +141,12 @@ public:
     static QWhatsThat *instance;
 
 protected:
-    void showEvent(QShowEvent *e);
-    void mousePressEvent(QMouseEvent*);
-    void mouseReleaseEvent(QMouseEvent*);
-    void mouseMoveEvent(QMouseEvent*);
-    void keyPressEvent(QKeyEvent*);
-    void paintEvent(QPaintEvent*);
+    void showEvent(QShowEvent *e) Q_DECL_OVERRIDE;
+    void mousePressEvent(QMouseEvent*) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent(QMouseEvent*) Q_DECL_OVERRIDE;
+    void mouseMoveEvent(QMouseEvent*) Q_DECL_OVERRIDE;
+    void keyPressEvent(QKeyEvent*) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent*) Q_DECL_OVERRIDE;
 
 private:
     QPointer<QWidget>widget;
@@ -361,7 +361,7 @@ class QWhatsThisPrivate : public QObject
     QWhatsThisPrivate();
     ~QWhatsThisPrivate();
     static QWhatsThisPrivate *instance;
-    bool eventFilter(QObject *, QEvent *);
+    bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
     QPointer<QAction> action;
     static void say(QWidget *, const QString &, int x = 0, int y = 0);
     static void notifyToplevels(QEvent *e);
diff --git a/src/widgets/kernel/qwidget.h b/src/widgets/kernel/qwidget.h
index ad1e276567..52c12d3730 100644
--- a/src/widgets/kernel/qwidget.h
+++ b/src/widgets/kernel/qwidget.h
@@ -203,7 +203,7 @@ public:
     explicit QWidget(QWidget* parent = 0, Qt::WindowFlags f = 0);
     ~QWidget();
 
-    int devType() const;
+    int devType() const Q_DECL_OVERRIDE;
 
     WId winId() const;
     void createWinId(); // internal, going away
@@ -568,7 +568,7 @@ public:
     void setAttribute(Qt::WidgetAttribute, bool on = true);
     inline bool testAttribute(Qt::WidgetAttribute) const;
 
-    QPaintEngine *paintEngine() const;
+    QPaintEngine *paintEngine() const Q_DECL_OVERRIDE;
 
     void ensurePolished() const;
 
@@ -598,7 +598,7 @@ Q_SIGNALS:
 
 protected:
     // Event handlers
-    bool event(QEvent *);
+    bool event(QEvent *) Q_DECL_OVERRIDE;
     virtual void mousePressEvent(QMouseEvent *);
     virtual void mouseReleaseEvent(QMouseEvent *);
     virtual void mouseDoubleClickEvent(QMouseEvent *);
@@ -640,10 +640,10 @@ protected:
     // Misc. protected functions
     virtual void changeEvent(QEvent *);
 
-    int metric(PaintDeviceMetric) const;
-    void initPainter(QPainter *painter) const;
-    QPaintDevice *redirected(QPoint *offset) const;
-    QPainter *sharedPainter() const;
+    int metric(PaintDeviceMetric) const Q_DECL_OVERRIDE;
+    void initPainter(QPainter *painter) const Q_DECL_OVERRIDE;
+    QPaintDevice *redirected(QPoint *offset) const Q_DECL_OVERRIDE;
+    QPainter *sharedPainter() const Q_DECL_OVERRIDE;
 
     virtual void inputMethodEvent(QInputMethodEvent *);
 public:
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index d5a91f18d6..738f017e89 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -907,10 +907,10 @@ public:
     inline QRect deviceRect() const
     { return m_widget->window()->rect(); }
 
-    QRectF boundingRect(Qt::CoordinateSystem system) const;
-    void draw(QPainter *p);
+    QRectF boundingRect(Qt::CoordinateSystem system) const Q_DECL_OVERRIDE;
+    void draw(QPainter *p) Q_DECL_OVERRIDE;
     QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset,
-                   QGraphicsEffect::PixmapPadMode mode) const;
+                   QGraphicsEffect::PixmapPadMode mode) const Q_DECL_OVERRIDE;
 
     QWidget *m_widget;
     QWidgetPaintContext *context;
diff --git a/src/widgets/kernel/qwidgetaction.h b/src/widgets/kernel/qwidgetaction.h
index afea8454d9..896fc1ffe4 100644
--- a/src/widgets/kernel/qwidgetaction.h
+++ b/src/widgets/kernel/qwidgetaction.h
@@ -59,8 +59,8 @@ public:
     void releaseWidget(QWidget *widget);
 
 protected:
-    virtual bool event(QEvent *);
-    virtual bool eventFilter(QObject *, QEvent *);
+    virtual bool event(QEvent *) Q_DECL_OVERRIDE;
+    virtual bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
     virtual QWidget *createWidget(QWidget *parent);
     virtual void deleteWidget(QWidget *widget);
     QList<QWidget *> createdWidgets() const;
diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
index 4bca0eab4a..fa9138344a 100644
--- a/src/widgets/kernel/qwidgetwindow.cpp
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -63,7 +63,7 @@ class QWidgetWindowPrivate : public QWindowPrivate
 {
     Q_DECLARE_PUBLIC(QWidgetWindow)
 public:
-    QWindow *eventReceiver() {
+    QWindow *eventReceiver() Q_DECL_OVERRIDE {
         Q_Q(QWidgetWindow);
         QWindow *w = q;
         while (w->parent() && qobject_cast<QWidgetWindow *>(w) && qobject_cast<QWidgetWindow *>(w->parent())) {
@@ -72,7 +72,7 @@ public:
         return w;
     }
 
-    void clearFocusObject()
+    void clearFocusObject() Q_DECL_OVERRIDE
     {
         Q_Q(QWidgetWindow);
         QWidget *widget = q->widget();
diff --git a/src/widgets/kernel/qwidgetwindow_p.h b/src/widgets/kernel/qwidgetwindow_p.h
index 0632a5c364..3bacb0c8e4 100644
--- a/src/widgets/kernel/qwidgetwindow_p.h
+++ b/src/widgets/kernel/qwidgetwindow_p.h
@@ -65,12 +65,12 @@ public:
 
     QWidget *widget() const { return m_widget; }
 #ifndef QT_NO_ACCESSIBILITY
-    QAccessibleInterface *accessibleRoot() const;
+    QAccessibleInterface *accessibleRoot() const Q_DECL_OVERRIDE;
 #endif
 
-    QObject *focusObject() const;
+    QObject *focusObject() const Q_DECL_OVERRIDE;
 protected:
-    bool event(QEvent *);
+    bool event(QEvent *) Q_DECL_OVERRIDE;
 
     void handleCloseEvent(QCloseEvent *);
     void handleEnterLeaveEvent(QEvent *);
@@ -91,7 +91,7 @@ protected:
 #endif
     void handleExposeEvent(QExposeEvent *);
     void handleWindowStateChangedEvent(QWindowStateChangeEvent *event);
-    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+    bool nativeEvent(const QByteArray &eventType, void *message, long *result) Q_DECL_OVERRIDE;
 #ifndef QT_NO_TABLETEVENT
     void handleTabletEvent(QTabletEvent *);
 #endif
diff --git a/src/widgets/kernel/qwindowcontainer_p.h b/src/widgets/kernel/qwindowcontainer_p.h
index 6ba1ab544e..751c932ef0 100644
--- a/src/widgets/kernel/qwindowcontainer_p.h
+++ b/src/widgets/kernel/qwindowcontainer_p.h
@@ -68,7 +68,7 @@ public:
     static void parentWasLowered(QWidget *parent);
 
 protected:
-    bool event(QEvent *ev);
+    bool event(QEvent *ev) Q_DECL_OVERRIDE;
 
 private slots:
     void focusWindowChanged(QWindow *focusWindow);