doc: Add missing override and remove redundant virtual for snippets

Change-Id: I2395fd01b93c4ea364225e0cf1a5f59908b691d0 Reviewed-by: Martin Smith <martin.smith@qt.io>
2016-12-08 00:23:14 +03:00 · 2016-12-08 00:23:14 +03:00 · 242ea38375
commit 242ea38375
parent 9b59a2ef97
37 changed files with 95 additions and 95 deletions
--- a/src/corelib/doc/snippets/code/src_corelib_concurrent_qthreadpool.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_concurrent_qthreadpool.cpp
@ -51,7 +51,7 @@
 //! [0]
 class HelloWorldTask : public QRunnable
 {
-    void run()
+    void run() override
    {
        qDebug() << "Hello world from thread" << QThread::currentThread();
    }
--- a/src/corelib/doc/snippets/code/src_corelib_io_qabstractfileengine.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_io_qabstractfileengine.cpp
@ -52,7 +52,7 @@
 class ZipEngineHandler : public QAbstractFileEngineHandler
 {
 public:
-    QAbstractFileEngine *create(const QString &fileName) const;
+    QAbstractFileEngine *create(const QString &fileName) const override;
 };

 QAbstractFileEngine *ZipEngineHandler::create(const QString &fileName) const
@ -105,12 +105,12 @@ public:
        entries << "entry1" << "entry2" << "entry3";
    }

-    bool hasNext() const
+    bool hasNext() const override
    {
        return index < entries.size() - 1;
    }

-    QString next()
+    QString next() override
    {
       if (!hasNext())
           return QString();
@ -118,7 +118,7 @@ public:
       return currentFilePath();
    }

-    QString currentFileName()
+    QString currentFileName() override
    {
        return entries.at(index);
    }
--- a/src/corelib/doc/snippets/code/src_corelib_io_qprocess.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_io_qprocess.cpp
@ -94,7 +94,7 @@ class SandboxProcess : public QProcess
 {
    ...
 protected:
-     void setupChildProcess();
+     void setupChildProcess() override;
    ...
 };

--- a/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp
@ -120,7 +120,7 @@ public:

    ...

-    QVariant data(const QModelIndex &index, int role)
+    QVariant data(const QModelIndex &index, int role) override
    {
        if (role != Qt::BackgroundRole)
            return QSortFilterProxyModel::data(index, role);
--- a/src/corelib/doc/snippets/code/src_corelib_kernel_qobject.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_kernel_qobject.cpp
@ -101,7 +101,7 @@ public:
    MainWindow();

 protected:
-    bool eventFilter(QObject *obj, QEvent *ev);
+    bool eventFilter(QObject *obj, QEvent *ev) override;

 private:
    QTextEdit *textEdit;
@ -147,7 +147,7 @@ public:
    MyObject(QObject *parent = 0);

 protected:
-    void timerEvent(QTimerEvent *event);
+    void timerEvent(QTimerEvent *event) override;
 };

 MyObject::MyObject(QObject *parent)
@ -215,7 +215,7 @@ class KeyPressEater : public QObject
    ...

 protected:
-    bool eventFilter(QObject *obj, QEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event) override;
 };

 bool KeyPressEater::eventFilter(QObject *obj, QEvent *event)
@ -508,7 +508,7 @@ public:
    MyClass(QWidget *parent = 0);
    ~MyClass();

-    bool event(QEvent* ev)
+    bool event(QEvent* ev) override
    {
        if (ev->type() == QEvent::PolishRequest) {
            // overwrite handling of PolishRequest if any
--- a/src/corelib/doc/snippets/code/src_corelib_thread_qexception.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_thread_qexception.cpp
@ -53,8 +53,8 @@
 class MyException : public QException
 {
 public:
-    void raise() const { throw *this; }
-    MyException *clone() const { return new MyException(*this); }
+    void raise() const override { throw *this; }
+    MyException *clone() const override { return new MyException(*this); }
 };

 //! [0]
--- a/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
+++ b/src/corelib/doc/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
@ -58,7 +58,7 @@ class DateFormatProxyModel : public QIdentityProxyModel
    m_formatString = formatString;
  }

-  QVariant data(const QModelIndex &index, int role) const
+  QVariant data(const QModelIndex &index, int role) const override
  {
    if (role != Qt::DisplayRole)
      return QIdentityProxyModel::data(index, role);
--- a/src/corelib/doc/snippets/eventfilters/filterobject.h
+++ b/src/corelib/doc/snippets/eventfilters/filterobject.h
@ -59,7 +59,7 @@ class FilterObject : public QObject

 public:
    FilterObject(QObject *parent = 0);
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
    void setFilteredObject(QObject *object);

 private:
--- a/src/corelib/doc/snippets/events/events.cpp
+++ b/src/corelib/doc/snippets/events/events.cpp
@ -54,7 +54,7 @@
 class MyCheckBox : public QCheckBox
 {
 public:
-    void mousePressEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
 };

 //! [0]
@ -72,7 +72,7 @@ void MyCheckBox::mousePressEvent(QMouseEvent *event)
 class MyWidget : public QWidget
 {
 public:
-    bool event(QEvent *event);
+    bool event(QEvent *event) override;
 };

 static const int MyCustomEventType = 1099;
--- a/src/corelib/doc/snippets/settings/settings.cpp
+++ b/src/corelib/doc/snippets/settings/settings.cpp
@ -143,7 +143,7 @@ public:
    void readSettings();

 protected:
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
 };

 //! [16]
--- a/src/corelib/doc/snippets/statemachine/eventtest.cpp
+++ b/src/corelib/doc/snippets/statemachine/eventtest.cpp
@ -58,7 +58,7 @@ public:

 protected:
 //![0]
-    bool eventTest(QEvent *event)
+    bool eventTest(QEvent *event) override
    {
        if (event->type() == QEvent::Wrapped) {
            QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event();
@ -71,7 +71,7 @@ protected:
    }
 //![0]

-    void onTransition(QEvent *event)
+    void onTransition(QEvent *event) override
    {

    }
--- a/src/corelib/doc/snippets/statemachine/main4.cpp
+++ b/src/corelib/doc/snippets/statemachine/main4.cpp
@ -72,7 +72,7 @@ public:
        : m_value(value) {}

 protected:
-    virtual bool eventTest(QEvent *e)
+    bool eventTest(QEvent *e) override
    {
        if (e->type() != QEvent::Type(QEvent::User+1)) // StringEvent
            return false;
@ -80,7 +80,7 @@ protected:
        return (m_value == se->value);
    }

-    virtual void onTransition(QEvent *) {}
+    void onTransition(QEvent *) override {}

 private:
    QString m_value;
--- a/src/gui/doc/snippets/draganddrop/dragwidget.h
+++ b/src/gui/doc/snippets/draganddrop/dragwidget.h
@ -74,10 +74,10 @@ signals:
    void mimeTypes(const QStringList &types);

 protected:
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
-    void mouseMoveEvent(QMouseEvent *event);
-    void mousePressEvent(QMouseEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;

 private:
    QByteArray data;
--- a/src/gui/doc/snippets/dragging/mainwindow.h
+++ b/src/gui/doc/snippets/dragging/mainwindow.h
@ -68,7 +68,7 @@ public:
    MainWindow(QWidget *parent = 0);

 protected:
-    void mousePressEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;

 private:
    QLabel *iconLabel;
--- a/src/gui/doc/snippets/dropevents/window.h
+++ b/src/gui/doc/snippets/dropevents/window.h
@ -67,8 +67,8 @@ public:
    Window(QWidget *parent = 0);

 protected:
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;

 private:
    QComboBox *mimeTypeCombo;
--- a/src/gui/doc/snippets/droprectangle/window.h
+++ b/src/gui/doc/snippets/droprectangle/window.h
@ -67,8 +67,8 @@ public:
    Window(QWidget *parent = 0);

 protected:
-    void dragMoveEvent(QDragMoveEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;

 private:
    QComboBox *mimeTypeCombo;
--- a/src/gui/doc/snippets/matrix/matrix.cpp
+++ b/src/gui/doc/snippets/matrix/matrix.cpp
@ -53,7 +53,7 @@

 class SimpleTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [0]
@ -73,7 +73,7 @@ void SimpleTransformation::paintEvent(QPaintEvent *)

 class CombinedTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [1]
@ -97,7 +97,7 @@ void CombinedTransformation::paintEvent(QPaintEvent *)

 class BasicOperations : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [2]
--- a/src/gui/doc/snippets/plaintextlayout/window.h
+++ b/src/gui/doc/snippets/plaintextlayout/window.h
@ -61,7 +61,7 @@ public:
    Window(QWidget *parent = 0);

 protected:
-    void paintEvent(QPaintEvent *event);
+    void paintEvent(QPaintEvent *event) override;

 private:
    QFont font;
--- a/src/gui/doc/snippets/qfileopenevent/main.cpp
+++ b/src/gui/doc/snippets/qfileopenevent/main.cpp
@ -61,7 +61,7 @@ public:
    {
    }

-    bool event(QEvent *event)
+    bool event(QEvent *event) override
    {
        if (event->type() == QEvent::FileOpen) {
            QFileOpenEvent *openEvent = static_cast<QFileOpenEvent *>(event);
--- a/src/gui/doc/snippets/separations/finalwidget.h
+++ b/src/gui/doc/snippets/separations/finalwidget.h
@ -71,8 +71,8 @@ public:
    const QPixmap *pixmap() const;

 protected:
-    void mouseMoveEvent(QMouseEvent *event);
-    void mousePressEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;

 private:
    void createImage();
--- a/src/gui/doc/snippets/textdocument-imagedrop/textedit.h
+++ b/src/gui/doc/snippets/textdocument-imagedrop/textedit.h
@ -59,8 +59,8 @@ class TextEdit : public QTextEdit

 public:
    TextEdit(QWidget *parent=0);
-    bool canInsertFromMimeData( const QMimeData *source ) const;
-    void insertFromMimeData( const QMimeData *source );
+    bool canInsertFromMimeData( const QMimeData *source ) const override;
+    void insertFromMimeData( const QMimeData *source ) override;
 };

 #endif
--- a/src/gui/doc/snippets/transform/main.cpp
+++ b/src/gui/doc/snippets/transform/main.cpp
@ -53,7 +53,7 @@

 class SimpleTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [0]
@ -73,7 +73,7 @@ void SimpleTransformation::paintEvent(QPaintEvent *)

 class CombinedTransformation : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [1]
@ -97,7 +97,7 @@ void CombinedTransformation::paintEvent(QPaintEvent *)

 class BasicOperations : public QWidget
 {
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 //! [2]
--- a/src/opengl/doc/snippets/code/src_opengl_qgl.cpp
+++ b/src/opengl/doc/snippets/code/src_opengl_qgl.cpp
@ -146,7 +146,7 @@ public:

 protected:

-    void initializeGL()
+    void initializeGL() override
    {
        // Set up the rendering context, define display lists etc.:
        ...
@ -155,7 +155,7 @@ protected:
        ...
    }

-    void resizeGL(int w, int h)
+    void resizeGL(int w, int h) override
    {
        // setup viewport, projection etc.:
        glViewport(0, 0, (GLint)w, (GLint)h);
@ -164,7 +164,7 @@ protected:
        ...
    }

-    void paintGL()
+    void paintGL() override
    {
        // draw the scene:
        ...
--- a/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
+++ b/src/sql/doc/snippets/sqldatabase/sqldatabase.cpp
@ -273,7 +273,7 @@ void QSqlQueryModel_snippets()
 class MyModel : public QSqlQueryModel
 {
 public:
-    QVariant data(const QModelIndex &item, int role) const;
+    QVariant data(const QModelIndex &item, int role) const override;

    int m_specialColumnNo;
 };
@ -526,15 +526,15 @@ public:
    ~XyzResult() {}

 protected:
-    QVariant data(int /* index */) { return QVariant(); }
-    bool isNull(int /* index */) { return false; }
-    bool reset(const QString & /* query */) { return false; }
-    bool fetch(int /* index */) { return false; }
-    bool fetchFirst() { return false; }
-    bool fetchLast() { return false; }
-    int size() { return 0; }
-    int numRowsAffected() { return 0; }
-    QSqlRecord record() const { return QSqlRecord(); }
+    QVariant data(int /* index */) override { return QVariant(); }
+    bool isNull(int /* index */) override { return false; }
+    bool reset(const QString & /* query */) override { return false; }
+    bool fetch(int /* index */) override { return false; }
+    bool fetchFirst() override { return false; }
+    bool fetchLast() override { return false; }
+    int size() override { return 0; }
+    int numRowsAffected() override { return 0; }
+    QSqlRecord record() const override { return QSqlRecord(); }
 };
 //! [47]

@ -545,13 +545,13 @@ public:
    XyzDriver() {}
    ~XyzDriver() {}

-    bool hasFeature(DriverFeature /* feature */) const { return false; }
+    bool hasFeature(DriverFeature /* feature */) const override { return false; }
    bool open(const QString & /* db */, const QString & /* user */,
              const QString & /* password */, const QString & /* host */,
-              int /* port */, const QString & /* options */)
+              int /* port */, const QString & /* options */) override
        { return false; }
    void close() {}
-    QSqlResult *createResult() const { return new XyzResult(this); }
+    QSqlResult *createResult() const override { return new XyzResult(this); }
 };
 //! [48]

--- a/src/widgets/doc/snippets/code/doc_gui_widgets_qopenglwidget.cpp
+++ b/src/widgets/doc/snippets/code/doc_gui_widgets_qopenglwidget.cpp
@ -55,7 +55,7 @@ public:
    MyGLWidget(QWidget *parent) : QOpenGLWidget(parent) { }

 protected:
-    void initializeGL()
+    void initializeGL() override
    {
        // Set up the rendering context, load shaders and other resources, etc.:
        QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
@ -63,7 +63,7 @@ protected:
        ...
    }

-    void resizeGL(int w, int h)
+    void resizeGL(int w, int h) override
    {
        // Update projection matrix and other size related settings:
        m_projection.setToIdentity();
@ -71,7 +71,7 @@ protected:
        ...
    }

-    void paintGL()
+    void paintGL() override
    {
        // Draw the scene:
        QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
@ -86,7 +86,7 @@ protected:
 class MyGLWidget : public QOpenGLWidget, protected QOpenGLFunctions
 {
    ...
-    void initializeGL()
+    void initializeGL() override
    {
        initializeOpenGLFunctions();
        glClearColor(...);
@ -108,7 +108,7 @@ widget->setFormat(format); // must be called before the widget or its parent win

 //! [3]
    ...
-    void paintGL()
+    void paintGL() override
    {
        QOpenGLFunctions_3_2_Core *f = QOpenGLContext::currentContext()->versionFunctions<QOpenGLFunctions_3_2_Core>();
        ...
--- a/src/widgets/doc/snippets/code/doc_src_layout.cpp
+++ b/src/widgets/doc/snippets/code/doc_src_layout.cpp
@ -63,13 +63,13 @@ public:
    CardLayout(int dist): QLayout(dist) {}
    ~CardLayout();

-    void addItem(QLayoutItem *item);
-    QSize sizeHint() const;
-    QSize minimumSize() const;
-    int count() const;
-    QLayoutItem *itemAt(int) const;
-    QLayoutItem *takeAt(int);
-    void setGeometry(const QRect &rect);
+    void addItem(QLayoutItem *item) override;
+    QSize sizeHint() const override;
+    QSize minimumSize() const override;
+    int count() const override;
+    QLayoutItem *itemAt(int) const override;
+    QLayoutItem *takeAt(int) override;
+    void setGeometry(const QRect &rect) override;

 private:
    QList<QLayoutItem*> list;
--- a/src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_graphicsview_qgraphicsitem.cpp
@ -52,7 +52,7 @@
 class SimpleItem : public QGraphicsItem
 {
 public:
-    QRectF boundingRect() const
+    QRectF boundingRect() const override
    {
        qreal penWidth = 1;
        return QRectF(-10 - penWidth / 2, -10 - penWidth / 2,
@ -60,7 +60,7 @@ public:
    }

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
-               QWidget *widget)
+               QWidget *widget) override
    {
        painter->drawRoundedRect(-10, -10, 20, 20, 5, 5);
    }
@ -74,7 +74,7 @@ class CustomItem : public QGraphicsItem
 public:
   enum { Type = UserType + 1 };

-   int type() const
+   int type() const override
   {
       // Enable the use of qgraphicsitem_cast with this item.
       return Type;
@ -260,7 +260,7 @@ class QGraphicsPathItem : public QAbstractGraphicsShapeItem
 {
 public:
  enum { Type = 2 };
-    int type() const { return Type; }
+    int type() const override { return Type; }
  ...
 };
 //! [18]
--- a/src/widgets/doc/snippets/code/src_gui_qproxystyle.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_qproxystyle.cpp
@ -54,7 +54,7 @@ class MyProxyStyle : public QProxyStyle
 public:

    int styleHint(StyleHint hint, const QStyleOption *option = 0,
-                  const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const
+                  const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const override
    {
        if (hint == QStyle::SH_UnderlineShortcut)
            return 1;
@ -73,7 +73,7 @@ class MyProxyStyle : public QProxyStyle
 {
  public:
    int styleHint(StyleHint hint, const QStyleOption *option = 0,
-                  const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const
+                  const QWidget *widget = 0, QStyleHintReturn *returnData = 0) const override
    {
        if (hint == QStyle::SH_UnderlineShortcut)
            return 0;
--- a/src/widgets/doc/snippets/code/src_gui_util_qundostack.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_util_qundostack.cpp
@ -54,9 +54,9 @@ class AppendText : public QUndoCommand
 public:
    AppendText(QString *doc, const QString &text)
        : m_document(doc), m_text(text) { setText("append text"); }
-    virtual void undo()
+    void undo() override
        { m_document->chop(m_text.length()); }
-    virtual void redo()
+    void redo() override
        { m_document->append(m_text); }
 private:
    QString *m_document;
--- a/src/widgets/doc/snippets/customstyle/customstyle.h
+++ b/src/widgets/doc/snippets/customstyle/customstyle.h
@ -63,7 +63,7 @@ public:
    ~CustomStyle() {}

    void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
-                       QPainter *painter, const QWidget *widget) const;
+                       QPainter *painter, const QWidget *widget) const override;
 };
 //! [0]

--- a/src/widgets/doc/snippets/graphicssceneadditemsnippet.cpp
+++ b/src/widgets/doc/snippets/graphicssceneadditemsnippet.cpp
@ -58,7 +58,7 @@ public:

    void drawItems(QPainter *painter, int numItems, QGraphicsItem *items[],
                   const QStyleOptionGraphicsItem options[],
-                   QWidget *widget = 0);
+                   QWidget *widget = 0) override;
 };

 //! [0]
--- a/src/widgets/doc/snippets/myscrollarea.cpp
+++ b/src/widgets/doc/snippets/myscrollarea.cpp
@ -57,8 +57,8 @@ public:
    void setWidget(QWidget *w);

 protected:
-    void scrollContentsBy(int dx, int dy);
-    void resizeEvent(QResizeEvent *event);
+    void scrollContentsBy(int dx, int dy) override;
+    void resizeEvent(QResizeEvent *event) override;

 private:
    void updateWidgetPosition();
--- a/src/widgets/doc/snippets/qlistview-dnd/model.h
+++ b/src/widgets/doc/snippets/qlistview-dnd/model.h
@ -61,15 +61,15 @@ class DragDropListModel : public QStringListModel
 public:
    DragDropListModel(const QStringList &strings, QObject *parent = 0);

-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;

    bool canDropMimeData(const QMimeData *data, Qt::DropAction action,
-                         int row, int column, const QModelIndex &parent);
+                         int row, int column, const QModelIndex &parent) override;
    bool dropMimeData(const QMimeData *data, Qt::DropAction action,
-                      int row, int column, const QModelIndex &parent);
-    QMimeData *mimeData(const QModelIndexList &indexes) const;
-    QStringList mimeTypes() const;
-    Qt::DropActions supportedDropActions() const;
+                      int row, int column, const QModelIndex &parent) override;
+    QMimeData *mimeData(const QModelIndexList &indexes) const override;
+    QStringList mimeTypes() const override;
+    Qt::DropActions supportedDropActions() const override;
 };

 #endif
--- a/src/widgets/doc/snippets/qstyleoption/main.cpp
+++ b/src/widgets/doc/snippets/qstyleoption/main.cpp
@ -56,7 +56,7 @@ class MyPushButton : public QPushButton
 public:
    MyPushButton(QWidget *parent = 0);

-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };

 MyPushButton::MyPushButton(QWidget *parent)
@ -87,7 +87,7 @@ class MyStyle : public QStyle
 public:

    void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
-                       QPainter *painter, const QWidget *widget);
+                       QPainter *painter, const QWidget *widget) override;
 };

 //! [4]
--- a/src/widgets/doc/snippets/qstyleplugin/main.cpp
+++ b/src/widgets/doc/snippets/qstyleplugin/main.cpp
@ -59,7 +59,7 @@ class MyStylePlugin : public QStylePlugin
 public:
    MyStylePlugin(QObject *parent = 0);

-    QStyle *create(const QString &key);
+    QStyle *create(const QString &key) override;
 };
 //! [0]

--- a/src/widgets/doc/snippets/splitterhandle/splitter.h
+++ b/src/widgets/doc/snippets/splitterhandle/splitter.h
@ -64,7 +64,7 @@ public:
    Splitter(Qt::Orientation orientation, QWidget *parent = 0);

 protected:
-    QSplitterHandle *createHandle();
+    QSplitterHandle *createHandle() override;
 };
 //! [0]

@ -74,7 +74,7 @@ public:
    SplitterHandle(Qt::Orientation orientation, QSplitter *parent);

 protected:
-    void paintEvent(QPaintEvent *event);
+    void paintEvent(QPaintEvent *event) override;

 private:
    QLinearGradient gradient;
--- a/src/widgets/doc/snippets/styles/styles.cpp
+++ b/src/widgets/doc/snippets/styles/styles.cpp
@ -55,7 +55,7 @@
 class MyWidget : public QWidget
 {
 protected:
-    void paintEvent(QPaintEvent *event);
+    void paintEvent(QPaintEvent *event) override;
    void paintEvent2(QPaintEvent *event);

 };