Remove most compiler warnings about missing overrides

Remove around 1000 compiler warnings about missing overrides
in our auto tests.

This significantly reduce the compiler warning noise in our auto
tests, so that one can actually better see the real problems
inbetween.

Change-Id: Id0c04dba43fcaf55d8cd2b5c6697358857c31bf9
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

10 files changed, 53 insertions, 52 deletions

diff --git a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
index e8fd5b49cd..3cb4c58513 100644
--- a/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
+++ b/tests/auto/widgets/kernel/qapplication/tst_qapplication.cpp
@@ -1807,7 +1807,7 @@ class CustomStyle : public QProxyStyle
 public:
     CustomStyle() : QProxyStyle("Windows") { Q_ASSERT(!polished); }
     ~CustomStyle() { polished = 0; }
-    void polish(QPalette &palette)
+    void polish(QPalette &palette) override
     {
         polished++;
         palette.setColor(QPalette::Active, QPalette::Link, Qt::red);
@@ -1822,7 +1822,7 @@ class CustomStylePlugin : public QStylePlugin
     Q_OBJECT
     Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QStyleFactoryInterface" FILE "customstyle.json")
 public:
-    QStyle *create(const QString &) { return new CustomStyle; }
+    QStyle *create(const QString &) override { return new CustomStyle; }
 };
 
 Q_IMPORT_PLUGIN(CustomStylePlugin)
diff --git a/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp b/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
index cbfbefaf3c..00e82248d4 100644
--- a/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
+++ b/tests/auto/widgets/kernel/qboxlayout/tst_qboxlayout.cpp
@@ -71,7 +71,7 @@ public:
     }
 
     virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
-                            const QWidget * widget = 0 ) const;
+                            const QWidget * widget = 0 ) const override;
 
     int hspacing;
     int vspacing;
@@ -245,7 +245,7 @@ public:
     }
 
     virtual QRect subElementRect(SubElement sr, const QStyleOption *opt,
-                                const QWidget *widget) const
+                                const QWidget *widget) const override
     {
         QRect rect = opt->rect;
         switch (sr) {
@@ -411,14 +411,14 @@ class LayoutItem : public QLayoutItem
 public:
     LayoutItem(const Descr &descr) :m_descr(descr) {}
 
-    QSize sizeHint() const { return QSize(m_descr.sizeHint, 100); }
-    QSize minimumSize() const { return QSize(m_descr.minimumSize, 0); }
-    QSize maximumSize() const { return QSize(m_descr.maximumSize, QLAYOUTSIZE_MAX); }
-    Qt::Orientations expandingDirections() const
+    QSize sizeHint() const override { return QSize(m_descr.sizeHint, 100); }
+    QSize minimumSize() const override { return QSize(m_descr.minimumSize, 0); }
+    QSize maximumSize() const override { return QSize(m_descr.maximumSize, QLAYOUTSIZE_MAX); }
+    Qt::Orientations expandingDirections() const override
     { return m_descr.expanding ? Qt::Horizontal :  Qt::Orientations{}; }
-    void setGeometry(const QRect &r) { m_pos = r.x(); m_size = r.width();}
-    QRect geometry() const { return QRect(m_pos, 0, m_size, 100); }
-    bool isEmpty() const { return m_descr.empty; }
+    void setGeometry(const QRect &r) override { m_pos = r.x(); m_size = r.width();}
+    QRect geometry() const override { return QRect(m_pos, 0, m_size, 100); }
+    bool isEmpty() const override { return m_descr.empty; }
 
 private:
     Descr m_descr;
diff --git a/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp b/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
index fd1751c5e7..06e82ecac8 100644
--- a/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
+++ b/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
@@ -298,7 +298,7 @@ public:
     }
 
     virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
-                            const QWidget * widget = 0 ) const;
+                            const QWidget * widget = 0 ) const override;
 
     int hspacing;
     int vspacing;
@@ -391,7 +391,7 @@ void tst_QFormLayout::contentsRect()
 class DummyMacStyle : public QCommonStyle
 {
 public:
-    virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const
+    virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const override
     {
         switch(hint) {
             case SH_FormLayoutFormAlignment:
@@ -411,7 +411,7 @@ public:
 class DummyQtopiaStyle : public QCommonStyle
 {
 public:
-    virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const
+    virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const override
     {
         switch(hint) {
             case SH_FormLayoutFormAlignment:
diff --git a/tests/auto/widgets/kernel/qgridlayout/tst_qgridlayout.cpp b/tests/auto/widgets/kernel/qgridlayout/tst_qgridlayout.cpp
index 26dbab5e15..69d85df597 100644
--- a/tests/auto/widgets/kernel/qgridlayout/tst_qgridlayout.cpp
+++ b/tests/auto/widgets/kernel/qgridlayout/tst_qgridlayout.cpp
@@ -386,7 +386,7 @@ public:
     SizeHinter(int w, int h, QWidget *parent = 0)
         : QWidget(parent), sh(QSize(w,h)) {}
     void setSizeHint(QSize s) { sh = s; }
-    QSize sizeHint() const { return sh; }
+    QSize sizeHint() const override { return sh; }
 private:
     QSize sh;
 };
@@ -452,7 +452,7 @@ public:
     }
 
     virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = nullptr,
-                            const QWidget * widget = nullptr ) const;
+                            const QWidget * widget = nullptr ) const override;
 
     int spacing = 6;
     int margin = 9;
@@ -508,11 +508,11 @@ public:
     }
 
     void setSizeHint(const QSize &s) { sh = s; }
-    QSize sizeHint() const { return sh; }
+    QSize sizeHint() const override { return sh; }
     void setMinimumSizeHint(const QSize &s) { msh = s; }
-    QSize minimumSizeHint() const { return msh; }
+    QSize minimumSizeHint() const override { return msh; }
 
-    virtual int heightForWidth(int width) const;
+    virtual int heightForWidth(int width) const override;
 
     void setNumberOfPixels(int numPixels) {
         m_numPixels = numPixels;
@@ -901,9 +901,9 @@ public:
     }
 
     virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
-                            const QWidget * widget = 0 ) const;
+                            const QWidget * widget = 0 ) const override;
     virtual QRect subElementRect(SubElement sr, const QStyleOption *opt,
-                                const QWidget *widget) const;
+                                const QWidget *widget) const override;
 
     int hspacing;
     int vspacing;
@@ -913,7 +913,7 @@ public:
                       QSizePolicy::ControlType control2,
                       Qt::Orientation orientation,
                       const QStyleOption *option = 0,
-                      const QWidget *widget = 0) const;
+                      const QWidget *widget = 0) const override;
 
 };
 
diff --git a/tests/auto/widgets/kernel/qlayout/tst_qlayout.cpp b/tests/auto/widgets/kernel/qlayout/tst_qlayout.cpp
index e5e0a48503..dec332196b 100644
--- a/tests/auto/widgets/kernel/qlayout/tst_qlayout.cpp
+++ b/tests/auto/widgets/kernel/qlayout/tst_qlayout.cpp
@@ -104,8 +104,8 @@ public:
 
 
     void setSizeHint(const QSize &s) { sh = s; }
-    QSize sizeHint() const { return sh; }
-    QSize minimumSizeHint() const { return msh; }
+    QSize sizeHint() const override { return sh; }
+    QSize minimumSizeHint() const override { return msh; }
 
 private:
     QSize sh;
@@ -221,13 +221,13 @@ class MyLayout : public QLayout
 {
     public:
         MyLayout() : invalidated(false) {}
-        virtual void invalidate() {invalidated = true;}
+        virtual void invalidate() override {invalidated = true;}
         bool invalidated;
-        QSize sizeHint() const {return QSize();}
-        void addItem(QLayoutItem*) {}
-        QLayoutItem* itemAt(int) const {return 0;}
-        QLayoutItem* takeAt(int) {return 0;}
-        int count() const {return 0;}
+        QSize sizeHint() const override {return QSize();}
+        void addItem(QLayoutItem*) override {}
+        QLayoutItem* itemAt(int) const override {return 0;}
+        QLayoutItem* takeAt(int) override {return 0;}
+        int count() const override {return 0;}
 };
 
 void tst_QLayout::setContentsMargins()
@@ -253,7 +253,7 @@ void tst_QLayout::setContentsMargins()
 class EventReceiver : public QObject
 {
 public:
-    bool eventFilter(QObject *watched, QEvent *event)
+    bool eventFilter(QObject *watched, QEvent *event) override
     {
         if (event->type() == QEvent::Show) {
             geom = static_cast<QWidget*>(watched)->geometry();
diff --git a/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp b/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
index 053dc03296..8721a7191a 100644
--- a/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
+++ b/tests/auto/widgets/kernel/qstackedlayout/tst_qstackedlayout.cpp
@@ -284,13 +284,13 @@ protected:
         return true;
     }
 
-    void focusInEvent(QFocusEvent *event)
+    void focusInEvent(QFocusEvent *event) override
     {
         QLineEdit::focusInEvent(event);
         hasFakeEditFocus = isSingleFocusWidget();
     }
 
-    void focusOutEvent(QFocusEvent *event)
+    void focusOutEvent(QFocusEvent *event) override
     {
         hasFakeEditFocus = false;
         QLineEdit::focusOutEvent(event);
diff --git a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
index b3a2323d3e..356b969055 100644
--- a/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
+++ b/tests/auto/widgets/kernel/qwidget/tst_qwidget.cpp
@@ -6986,7 +6986,7 @@ public:
     }
 
 protected:
-    void paintEvent(QPaintEvent *)
+    void paintEvent(QPaintEvent *) override
     {
         if (ellipse) {
             QPainter painter(this);
@@ -10142,7 +10142,7 @@ void tst_QWidget::focusProxy()
         int focusOutCount = 0;
 
     protected:
-        bool eventFilter(QObject *receiver, QEvent *event)
+        bool eventFilter(QObject *receiver, QEvent *event) override
         {
             if (receiver == edit) {
                 switch (event->type()) {
diff --git a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
index 890a53541a..17b119410f 100644
--- a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
+++ b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
@@ -523,10 +523,10 @@ public:
         : QWidget(w), m_log(log), m_ignoreDragMove(ignoreDragMove)
     {}
 protected:
-    void dragEnterEvent(QDragEnterEvent *);
-    void dragMoveEvent(QDragMoveEvent *);
-    void dragLeaveEvent(QDragLeaveEvent *);
-    void dropEvent(QDropEvent *);
+    void dragEnterEvent(QDragEnterEvent *) override;
+    void dragMoveEvent(QDragMoveEvent *) override;
+    void dragLeaveEvent(QDragLeaveEvent *) override;
+    void dropEvent(QDropEvent *) override;
 
 private:
     void formatDropEvent(const char *function, const QDropEvent *e, QTextStream &str) const;
@@ -700,7 +700,7 @@ public:
     DnDEventRecorder() { setAcceptDrops(true); }
 
 protected:
-    void mousePressEvent(QMouseEvent *)
+    void mousePressEvent(QMouseEvent *) override
     {
         QMimeData *mimeData = new QMimeData;
         mimeData->setData("application/x-dnditemdata", "some data");
@@ -709,23 +709,23 @@ protected:
         drag->exec();
     }
 
-    void dragEnterEvent(QDragEnterEvent *e)
+    void dragEnterEvent(QDragEnterEvent *e) override
     {
         e->accept();
         _dndEvents.append(QStringLiteral("DragEnter "));
     }
-    void dragMoveEvent(QDragMoveEvent *e)
+    void dragMoveEvent(QDragMoveEvent *e) override
     {
         e->accept();
         _dndEvents.append(QStringLiteral("DragMove "));
         emit dragMoveReceived();
     }
-    void dragLeaveEvent(QDragLeaveEvent *e)
+    void dragLeaveEvent(QDragLeaveEvent *e) override
     {
         e->accept();
         _dndEvents.append(QStringLiteral("DragLeave "));
     }
-    void dropEvent(QDropEvent *e)
+    void dropEvent(QDropEvent *e) override
     {
         e->accept();
         _dndEvents.append(QStringLiteral("DropEvent "));
@@ -1055,7 +1055,7 @@ void tst_QWidget_window::tst_showhide_count()
             return count;
         }
     protected:
-        bool eventFilter(QObject *receiver, QEvent *event)
+        bool eventFilter(QObject *receiver, QEvent *event) override
         {
             if (QWidget *widget = qobject_cast<QWidget*>(receiver)) {
                 const auto entry = Entry(widget, event->type());
@@ -1341,7 +1341,7 @@ void tst_QWidget_window::mouseMoveWithPopup()
         : QWidget(parent, flags|Qt::CustomizeWindowHint|Qt::FramelessWindowHint)
         {}
 
-        QSize sizeHint() const
+        QSize sizeHint() const override
         {
             if (parent())
                 return QSize(150, 100);
@@ -1360,7 +1360,7 @@ void tst_QWidget_window::mouseMoveWithPopup()
             mouseReleaseCount = 0;
         }
     protected:
-        void mousePressEvent(QMouseEvent *event)
+        void mousePressEvent(QMouseEvent *event) override
         {
             ++mousePressCount;
 
@@ -1378,12 +1378,12 @@ void tst_QWidget_window::mouseMoveWithPopup()
                 QWidget::mousePressEvent(event);
             }
         }
-        void mouseReleaseEvent(QMouseEvent *event)
+        void mouseReleaseEvent(QMouseEvent *event) override
         {
             ++mouseReleaseCount;
             QWidget::mouseReleaseEvent(event);
         }
-        void mouseMoveEvent(QMouseEvent *event)
+        void mouseMoveEvent(QMouseEvent *event) override
         {
             ++mouseMoveCount;
             QWidget::mouseMoveEvent(event);
diff --git a/tests/auto/widgets/kernel/qwidgetaction/tst_qwidgetaction.cpp b/tests/auto/widgets/kernel/qwidgetaction/tst_qwidgetaction.cpp
index 28731223a9..ad91cf3031 100644
--- a/tests/auto/widgets/kernel/qwidgetaction/tst_qwidgetaction.cpp
+++ b/tests/auto/widgets/kernel/qwidgetaction/tst_qwidgetaction.cpp
@@ -212,7 +212,7 @@ public:
     QList<QWidget *> createdWidgets() const { return QWidgetAction::createdWidgets(); }
 
 protected:
-    virtual QWidget *createWidget(QWidget *parent);
+    virtual QWidget *createWidget(QWidget *parent) override;
 };
 
 QWidget *ComboAction::createWidget(QWidget *parent)
@@ -396,7 +396,7 @@ class CrashedAction : public QWidgetAction
 public:
     inline CrashedAction(QObject *parent) : QWidgetAction(parent) { }
 
-    virtual QWidget *createWidget(QWidget *parent) {
+    virtual QWidget *createWidget(QWidget *parent) override {
         return new QWidget(parent);
     }
 };
diff --git a/tests/auto/widgets/kernel/qwindowcontainer/tst_qwindowcontainer.cpp b/tests/auto/widgets/kernel/qwindowcontainer/tst_qwindowcontainer.cpp
index 2a8edaf1a2..ec646ccbe3 100644
--- a/tests/auto/widgets/kernel/qwindowcontainer/tst_qwindowcontainer.cpp
+++ b/tests/auto/widgets/kernel/qwindowcontainer/tst_qwindowcontainer.cpp
@@ -49,7 +49,8 @@ public:
     {
     }
 
-    void exposeEvent(QExposeEvent *) {
+    void exposeEvent(QExposeEvent *) override
+    {
         if (isExposed())
             ++numberOfExposes;
         else