Examples: Replace 'Q_DECL_OVERRIDE' by 'override'

Examples should demonstrate best practice, and we can use the keyword
directly nowadays.

Change-Id: I1f122e5caceca17290757ffbaf3d660e7daa9ae4
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

examples/corelib/threads/mandelbrot/mandelbrotwidget.h

@@ -65,15 +65,15 @@ public:
     MandelbrotWidget(QWidget *parent = 0);
 
 protected:
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
 #ifndef QT_NO_WHEELEVENT
-    void wheelEvent(QWheelEvent *event) Q_DECL_OVERRIDE;
+    void wheelEvent(QWheelEvent *event) override;
 #endif
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
 
 private slots:
     void updatePixmap(const QImage &image, double scaleFactor);

examples/corelib/threads/mandelbrot/renderthread.h

@@ -75,7 +75,7 @@ signals:
     void renderedImage(const QImage &image, double scaleFactor);
 
 protected:
-    void run() Q_DECL_OVERRIDE;
+    void run() override;
 
 private:
     uint rgbFromWaveLength(double wave);

examples/corelib/threads/semaphores/semaphores.cpp

@@ -68,7 +68,7 @@ class Producer : public QThread
 //! [1] //! [2]
 {
 public:
-    void run() Q_DECL_OVERRIDE
+    void run() override
     {
         qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
         for (int i = 0; i < DataSize; ++i) {
@@ -86,7 +86,7 @@ class Consumer : public QThread
 {
     Q_OBJECT
 public:
-    void run() Q_DECL_OVERRIDE
+    void run() override
     {
         for (int i = 0; i < DataSize; ++i) {
             usedBytes.acquire();

examples/corelib/threads/waitconditions/waitconditions.cpp

@@ -74,7 +74,7 @@ public:
     {
     }
 
-    void run() Q_DECL_OVERRIDE
+    void run() override
     {
         qsrand(QTime(0,0,0).secsTo(QTime::currentTime()));
 
@@ -105,7 +105,7 @@ public:
     {
     }
 
-    void run() Q_DECL_OVERRIDE
+    void run() override
     {
         for (int i = 0; i < DataSize; ++i) {
             mutex.lock();

examples/corelib/tools/contiguouscache/randomlistmodel.h

@@ -62,8 +62,8 @@ public:
     RandomListModel(QObject *parent = 0);
     ~RandomListModel();
 
-    int rowCount(const QModelIndex & = QModelIndex()) const Q_DECL_OVERRIDE;
-    QVariant data(const QModelIndex &, int) const Q_DECL_OVERRIDE;
+    int rowCount(const QModelIndex & = QModelIndex()) const override;
+    QVariant data(const QModelIndex &, int) const override;
 
 private:
     void cacheRows(int, int) const;

examples/gui/analogclock/main.cpp

@@ -59,8 +59,8 @@ public:
     AnalogClockWindow();
 
 protected:
-    void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE;
-    void render(QPainter *p) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *) override;
+    void render(QPainter *p) override;
 
 private:
     int m_timerId;

examples/gui/openglwindow/main.cpp

@@ -63,8 +63,8 @@ class TriangleWindow : public OpenGLWindow
 public:
     TriangleWindow();
 
-    void initialize() Q_DECL_OVERRIDE;
-    void render() Q_DECL_OVERRIDE;
+    void initialize() override;
+    void render() override;
 
 private:
     GLuint m_posAttr;

examples/gui/openglwindow/openglwindow.h

@@ -77,9 +77,9 @@ public slots:
     void renderNow();
 
 protected:
-    bool event(QEvent *event) Q_DECL_OVERRIDE;
+    bool event(QEvent *event) override;
 
-    void exposeEvent(QExposeEvent *event) Q_DECL_OVERRIDE;
+    void exposeEvent(QExposeEvent *event) override;
 
 private:
     bool m_update_pending;

examples/gui/rasterwindow/rasterwindow.h

@@ -67,10 +67,10 @@ public slots:
     void renderNow();
 
 protected:
-    bool event(QEvent *event) Q_DECL_OVERRIDE;
+    bool event(QEvent *event) override;
 
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    void exposeEvent(QExposeEvent *event) Q_DECL_OVERRIDE;
+    void resizeEvent(QResizeEvent *event) override;
+    void exposeEvent(QExposeEvent *event) override;
 
 private:
     QBackingStore *m_backingStore;

examples/network/bearermonitor/sessionwidget.h

@@ -65,7 +65,7 @@ public:
     explicit SessionWidget(const QNetworkConfiguration &config, QWidget *parent = 0);
     ~SessionWidget();
 
-    void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *) override;
 
 private:
     void updateSessionState(QNetworkSession::State state);

examples/network/blockingfortuneclient/fortunethread.h

@@ -65,7 +65,7 @@ public:
     ~FortuneThread();
 
     void requestNewFortune(const QString &hostName, quint16 port);
-    void run() Q_DECL_OVERRIDE;
+    void run() override;
 
 signals:
     void newFortune(const QString &fortune);

examples/network/googlesuggest/googlesuggest.h

@@ -70,7 +70,7 @@ class GSuggestCompletion : public QObject
 public:
     GSuggestCompletion(QLineEdit *parent = 0);
     ~GSuggestCompletion();
-    bool eventFilter(QObject *obj, QEvent *ev) Q_DECL_OVERRIDE;
+    bool eventFilter(QObject *obj, QEvent *ev) override;
     void showCompletion(const QStringList &choices);
 
 public slots:

examples/network/network-chat/connection.h

@@ -88,7 +88,7 @@ signals:
     void newMessage(const QString &from, const QString &message);
 
 protected:
-    void timerEvent(QTimerEvent *timerEvent) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *timerEvent) override;
 
 private slots:
     void processReadyRead();

examples/network/network-chat/server.h

@@ -66,7 +66,7 @@ signals:
     void newConnection(Connection *connection);
 
 protected:
-    void incomingConnection(qintptr socketDescriptor) Q_DECL_OVERRIDE;
+    void incomingConnection(qintptr socketDescriptor) override;
 };
 
 #endif

examples/network/threadedfortuneserver/fortuneserver.h

@@ -63,7 +63,7 @@ public:
     FortuneServer(QObject *parent = 0);
 
 protected:
-    void incomingConnection(qintptr socketDescriptor) Q_DECL_OVERRIDE;
+    void incomingConnection(qintptr socketDescriptor) override;
 
 private:
     QStringList fortunes;

examples/network/threadedfortuneserver/fortunethread.h

@@ -62,7 +62,7 @@ class FortuneThread : public QThread
 public:
     FortuneThread(int socketDescriptor, const QString &fortune, QObject *parent);
 
-    void run() Q_DECL_OVERRIDE;
+    void run() override;
 
 signals:
     void error(QTcpSocket::SocketError socketError);

examples/network/torrent/filemanager.h

@@ -100,7 +100,7 @@ signals:
     void pieceVerified(int pieceIndex, bool verified);
 
 protected:
-    void run() Q_DECL_OVERRIDE;
+    void run() override;
 
 private slots:
     bool verifySinglePiece(int pieceIndex);

examples/network/torrent/mainwindow.cpp

@@ -67,8 +67,8 @@ signals:
     void fileDropped(const QString &fileName);
 
 protected:
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 #endif
 };
 
@@ -80,7 +80,7 @@ public:
     inline TorrentViewDelegate(MainWindow *mainWindow) : QItemDelegate(mainWindow) {}
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
-               const QModelIndex &index ) const Q_DECL_OVERRIDE
+               const QModelIndex &index ) const override
     {
         if (index.column() != 2) {
             QItemDelegate::paint(painter, option, index);

examples/network/torrent/mainwindow.h

@@ -73,11 +73,11 @@ class MainWindow : public QMainWindow
 public:
     MainWindow(QWidget *parent = 0);
 
-    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize sizeHint() const override;
     const TorrentClient *clientForRow(int row) const;
 
 protected:
-    void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
+    void closeEvent(QCloseEvent *event) override;
 
 private slots:
     void loadSettings();

examples/network/torrent/peerwireclient.h

@@ -122,14 +122,14 @@ public:
     qint64 uploadSpeed() const;
 
     bool canTransferMore() const;
-    qint64 bytesAvailable() const Q_DECL_OVERRIDE { return incomingBuffer.size() + QTcpSocket::bytesAvailable(); }
+    qint64 bytesAvailable() const override { return incomingBuffer.size() + QTcpSocket::bytesAvailable(); }
     qint64 socketBytesAvailable() const { return socket.bytesAvailable(); }
     qint64 socketBytesToWrite() const { return socket.bytesToWrite(); }
 
-    void setReadBufferSize(qint64 size) Q_DECL_OVERRIDE;
+    void setReadBufferSize(qint64 size) override;
 
     void connectToHost(const QHostAddress &address,
-                       quint16 port, OpenMode openMode = ReadWrite) Q_DECL_OVERRIDE;
+                       quint16 port, OpenMode openMode = ReadWrite) override;
     void diconnectFromHost();
 
 signals:
@@ -148,11 +148,11 @@ signals:
     void bytesReceived(qint64 size);
 
 protected:
-    void timerEvent(QTimerEvent *event) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *event) override;
 
-    qint64 readData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 readLineData(char *data, qint64 maxlen) Q_DECL_OVERRIDE;
-    qint64 writeData(const char *data, qint64 len) Q_DECL_OVERRIDE;
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 readLineData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *data, qint64 len) override;
 
 private slots:
     void sendHandShake();

examples/network/torrent/torrentclient.h

@@ -168,7 +168,7 @@ public slots:
     void setupIncomingConnection(PeerWireClient *client);
 
 protected slots:
-    void timerEvent(QTimerEvent *event) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *event) override;
 
 private slots:
     // File management

examples/network/torrent/torrentserver.h

@@ -68,7 +68,7 @@ public:
     void removeClient(TorrentClient *client);
 
 protected:
-    void incomingConnection(qintptr socketDescriptor) Q_DECL_OVERRIDE;
+    void incomingConnection(qintptr socketDescriptor) override;
 
 private slots:
     void removeClient();

examples/network/torrent/trackerclient.h

@@ -88,7 +88,7 @@ signals:
     void stopped();
 
 protected:
-    void timerEvent(QTimerEvent *event) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *event) override;
 
 private slots:
     void fetchPeerList();

examples/opengl/2dpainting/glwidget.h

@@ -67,7 +67,7 @@ public slots:
     void animate();
 
 protected:
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *event) override;
 
 private:
     Helper *helper;

examples/opengl/2dpainting/widget.h

@@ -67,7 +67,7 @@ public slots:
     void animate();
 
 protected:
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *event) override;
 
 private:
     Helper *helper;

examples/opengl/contextinfo/renderwindow.h

@@ -65,7 +65,7 @@ class RenderWindow : public QWindow
 public:
     RenderWindow(const QSurfaceFormat &format);
     QOpenGLContext *context() { return m_context; }
-    void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
+    void exposeEvent(QExposeEvent *) override;
     void setForceGLSL110(bool enable) { m_forceGLSL110 = enable; }
 
 signals:

examples/opengl/cube/mainwidget.h

@@ -73,13 +73,13 @@ public:
     ~MainWidget();
 
 protected:
-    void mousePressEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
-    void timerEvent(QTimerEvent *e) Q_DECL_OVERRIDE;
+    void mousePressEvent(QMouseEvent *e) override;
+    void mouseReleaseEvent(QMouseEvent *e) override;
+    void timerEvent(QTimerEvent *e) override;
 
-    void initializeGL() Q_DECL_OVERRIDE;
-    void resizeGL(int w, int h) Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void resizeGL(int w, int h) override;
+    void paintGL() override;
 
     void initShaders();
     void initTextures();

examples/opengl/hellogl2/glwidget.h

@@ -68,8 +68,8 @@ public:
     GLWidget(QWidget *parent = 0);
     ~GLWidget();
 
-    QSize minimumSizeHint() const Q_DECL_OVERRIDE;
-    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSizeHint() const override;
+    QSize sizeHint() const override;
 
 public slots:
     void setXRotation(int angle);
@@ -83,11 +83,11 @@ signals:
     void zRotationChanged(int angle);
 
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void paintGL() override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 
 private:
     void setupVertexAttribs();

examples/opengl/hellogl2/window.h

@@ -69,7 +69,7 @@ public:
     Window(MainWindow *mw);
 
 protected:
-    void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
+    void keyPressEvent(QKeyEvent *event) override;
 
 private slots:
     void dockUndock();

examples/opengl/hellowindow/hellowindow.h

@@ -112,10 +112,10 @@ public:
     QColor color() const;
     void updateColor();
 
-    void exposeEvent(QExposeEvent *event) Q_DECL_OVERRIDE;
+    void exposeEvent(QExposeEvent *event) override;
 
 private:
-    void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+    void mousePressEvent(QMouseEvent *) override;
 
     int m_colorIndex;
     QColor m_color;

examples/opengl/legacy/framebufferobject2/glwidget.h

@@ -55,12 +55,12 @@ class GLWidget : public QGLWidget
 public:
     GLWidget(QWidget *parent);
     ~GLWidget();
-    void initializeGL() Q_DECL_OVERRIDE;
-    void resizeGL(int w, int h) Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE { update(); }
-    void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE { killTimer(timerId); }
-    void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE { timerId = startTimer(20); }
+    void initializeGL() override;
+    void resizeGL(int w, int h) override;
+    void paintGL() override;
+    void timerEvent(QTimerEvent *) override { update(); }
+    void mousePressEvent(QMouseEvent *) override { killTimer(timerId); }
+    void mouseReleaseEvent(QMouseEvent *) override { timerId = startTimer(20); }
 
     void drawCube(int i, GLfloat z, GLfloat ri, GLfloat jmp, GLfloat amp);
 

examples/opengl/legacy/grabber/glwidget.h

@@ -76,11 +76,11 @@ signals:
     void zRotationChanged(int angle);
 
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void paintGL() override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 
 private slots:
     void advanceGears();

examples/opengl/legacy/hellogl/glwidget.h

@@ -65,8 +65,8 @@ public:
     GLWidget(QWidget *parent = 0);
     ~GLWidget();
 
-    QSize minimumSizeHint() const Q_DECL_OVERRIDE;
-    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSizeHint() const override;
+    QSize sizeHint() const override;
 //! [0]
 
 //! [1]
@@ -83,11 +83,11 @@ signals:
 
 //! [2]
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void paintGL() override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 //! [2]
 
 //! [3]

examples/opengl/legacy/hellogl/window.h

@@ -67,7 +67,7 @@ public:
     Window();
 
 protected:
-    void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
+    void keyPressEvent(QKeyEvent *event) override;
 
 private:
     QSlider *createSlider();

examples/opengl/legacy/overpainting/glwidget.h

@@ -68,7 +68,7 @@ public:
     ~GLWidget();
 //! [0]
 
-    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize sizeHint() const override;
     int xRotation() const { return xRot; }
     int yRotation() const { return yRot; }
     int zRotation() const { return zRot; }
@@ -80,12 +80,12 @@ public slots:
 
 //! [1]
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void showEvent(QShowEvent *event) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void paintEvent(QPaintEvent *event) override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void showEvent(QShowEvent *event) override;
 
 private slots:
     void animate();

examples/opengl/legacy/pbuffers/glwidget.h

@@ -67,11 +67,11 @@ public:
     ~GLWidget();
 
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE { setAnimationPaused(true); }
-    void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE { setAnimationPaused(false); }
+    void initializeGL() override;
+    void paintGL() override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *) override { setAnimationPaused(true); }
+    void mouseReleaseEvent(QMouseEvent *) override { setAnimationPaused(false); }
 
 private:
     void initializeGeometry();

examples/opengl/legacy/samplebuffers/glwidget.h

@@ -56,10 +56,10 @@ public:
     GLWidget(QWidget *parent);
 
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void resizeGL(int w, int h) Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void resizeGL(int w, int h) override;
+    void paintGL() override;
+    void timerEvent(QTimerEvent *) override;
 
     void makeObject();
     void quad(GLenum primitive, GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,

examples/opengl/paintedwindow/paintedwindow.h

@@ -84,8 +84,8 @@ private slots:
     void rotationDone();
 
 private:
-    void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+    void exposeEvent(QExposeEvent *) override;
+    void mousePressEvent(QMouseEvent *) override;
 
     void paint(QPainter *painter, const QRect &rect);
 

examples/opengl/qopenglwidget/glwidget.h

@@ -85,9 +85,9 @@ private slots:
     void handleButtonPress();
 
 protected:
-    void resizeGL(int w, int h) Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void initializeGL() Q_DECL_OVERRIDE;
+    void resizeGL(int w, int h) override;
+    void paintGL() override;
+    void initializeGL() override;
 
 private:
     void paintTexturedCube();

examples/opengl/qopenglwindow/main.cpp

@@ -79,9 +79,9 @@ public:
     OpenGLWindow();
 
 protected:
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int w, int h) Q_DECL_OVERRIDE;
-    void keyPressEvent(QKeyEvent *e) Q_DECL_OVERRIDE;
+    void paintGL() override;
+    void resizeGL(int w, int h) override;
+    void keyPressEvent(QKeyEvent *e) override;
 
 private:
     void setAnimating(bool enabled);

examples/opengl/textures/glwidget.h

@@ -66,8 +66,8 @@ public:
     explicit GLWidget(QWidget *parent = 0);
     ~GLWidget();
 
-    QSize minimumSizeHint() const Q_DECL_OVERRIDE;
-    QSize sizeHint() const Q_DECL_OVERRIDE;
+    QSize minimumSizeHint() const override;
+    QSize sizeHint() const override;
     void rotateBy(int xAngle, int yAngle, int zAngle);
     void setClearColor(const QColor &color);
 
@@ -75,12 +75,12 @@ signals:
     void clicked();
 
 protected:
-    void initializeGL() Q_DECL_OVERRIDE;
-    void paintGL() Q_DECL_OVERRIDE;
-    void resizeGL(int width, int height) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void initializeGL() override;
+    void paintGL() override;
+    void resizeGL(int width, int height) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
 
 private:
     void makeObject();

examples/opengl/threadedqopenglwidget/glwidget.h

@@ -114,7 +114,7 @@ public:
     ~GLWidget();
 
 protected:
-    void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE { }
+    void paintEvent(QPaintEvent *) override { }
 
 signals:
     void renderRequested();

examples/qpa/windows/window.h

@@ -58,16 +58,16 @@ public:
     Window(QScreen *screen);
 
 protected:
-    void mousePressEvent(QMouseEvent *) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QMouseEvent *) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QMouseEvent *) Q_DECL_OVERRIDE;
+    void mousePressEvent(QMouseEvent *) override;
+    void mouseMoveEvent(QMouseEvent *) override;
+    void mouseReleaseEvent(QMouseEvent *) override;
 
-    void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
+    void keyPressEvent(QKeyEvent *) override;
 
-    void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
-    void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;
+    void exposeEvent(QExposeEvent *) override;
+    void resizeEvent(QResizeEvent *) override;
 
-    void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *) override;
 
 private:
     void render();

examples/sql/books/bookdelegate.h

@@ -64,16 +64,16 @@ public:
     BookDelegate(QObject *parent);
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
-               const QModelIndex &index) const Q_DECL_OVERRIDE;
+               const QModelIndex &index) const override;
 
-    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const Q_DECL_OVERRIDE;
+    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
     bool editorEvent(QEvent *event, QAbstractItemModel *model,
                      const QStyleOptionViewItem &option,
-                     const QModelIndex &index) Q_DECL_OVERRIDE;
+                     const QModelIndex &index) override;
 
     QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
-                                        const QModelIndex &index) const Q_DECL_OVERRIDE;
+                                        const QModelIndex &index) const override;
 
 private:
     QPixmap star;

examples/sql/drilldown/imageitem.h

@@ -66,8 +66,8 @@ public:
     int id();
 
 protected:
-    void hoverEnterEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
-    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
+    void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
+    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;
 
 private slots:
     void setFrame(int frame);

examples/sql/drilldown/view.h

@@ -66,7 +66,7 @@ public:
     View(const QString &items, const QString &images, QWidget *parent = 0);
 
 protected:
-    void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent(QMouseEvent *event) override;
 //! [0]
 
 //! [1]

examples/sql/querymodel/customsqlmodel.h

@@ -61,7 +61,7 @@ class CustomSqlModel : public QSqlQueryModel
 public:
     CustomSqlModel(QObject *parent = 0);
 
-    QVariant data(const QModelIndex &item, int role) const Q_DECL_OVERRIDE;
+    QVariant data(const QModelIndex &item, int role) const override;
 };
 //! [0]
 

examples/sql/querymodel/editablesqlmodel.h

@@ -60,8 +60,8 @@ class EditableSqlModel : public QSqlQueryModel
 public:
     EditableSqlModel(QObject *parent = 0);
 
-    Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;
-    bool setData(const QModelIndex &index, const QVariant &value, int role) Q_DECL_OVERRIDE;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
 
 private:
     bool setFirstName(int personId, const QString &firstName);

examples/sql/sqlbrowser/browser.h

@@ -117,7 +117,7 @@ class CustomModel: public QSqlTableModel
     Q_OBJECT
 public:
     explicit CustomModel(QObject *parent = 0, QSqlDatabase db = QSqlDatabase()):QSqlTableModel(parent, db) {}
-    QVariant data(const QModelIndex &idx, int role) const Q_DECL_OVERRIDE
+    QVariant data(const QModelIndex &idx, int role) const override
     {
         if (role == Qt::BackgroundRole && isDirty(idx))
             return QBrush(QColor(Qt::yellow));

examples/touch/fingerpaint/mainwindow.h

@@ -65,7 +65,7 @@ public:
     MainWindow();
 
 protected:
-    void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
+    void closeEvent(QCloseEvent *event) override;
 
 private slots:
     void open();

examples/touch/fingerpaint/scribblearea.h

@@ -74,9 +74,9 @@ public slots:
     void print();
 
 protected:
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    bool event(QEvent *event) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    bool event(QEvent *event) override;
 
 private:
     void resizeImage(QImage *image, const QSize &newSize);

examples/touch/knobs/knob.h

@@ -58,7 +58,7 @@ class Knob : public QGraphicsEllipseItem
 public:
     Knob();
 
-    bool sceneEvent(QEvent *event) Q_DECL_OVERRIDE;
+    bool sceneEvent(QEvent *event) override;
 };
 
 #endif // KNOB_H

examples/touch/pinchzoom/graphicsview.h

@@ -58,7 +58,7 @@ class GraphicsView : public QGraphicsView
 public:
     GraphicsView(QGraphicsScene *scene = 0, QWidget *parent = 0);
 
-    bool viewportEvent(QEvent *event) Q_DECL_OVERRIDE;
+    bool viewportEvent(QEvent *event) override;
 
 private:
     qreal totalScaleFactor;

examples/touch/pinchzoom/mouse.h

@@ -61,13 +61,13 @@ class Mouse : public QGraphicsObject
 public:
     Mouse();
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    QPainterPath shape() const Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    QPainterPath shape() const override;
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
-               QWidget *widget) Q_DECL_OVERRIDE;
+               QWidget *widget) override;
 
 protected:
-    void timerEvent(QTimerEvent *event) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *event) override;
 
 private:
     qreal angle;

examples/widgets/animation/animatedtiles/main.cpp

@@ -75,19 +75,19 @@ public:
         setCacheMode(DeviceCoordinateCache);
     }
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE
+    QRectF boundingRect() const override
     {
         return QRectF(-65, -65, 130, 130);
     }
 
-    QPainterPath shape() const Q_DECL_OVERRIDE
+    QPainterPath shape() const override
     {
         QPainterPath path;
         path.addEllipse(boundingRect());
         return path;
     }
 
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *) Q_DECL_OVERRIDE
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *) override
     {
         bool down = option->state & QStyle::State_Sunken;
         QRectF r = boundingRect();
@@ -112,13 +112,13 @@ signals:
     void pressed();
 
 protected:
-    void mousePressEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE
+    void mousePressEvent(QGraphicsSceneMouseEvent *) override
     {
         emit pressed();
         update();
     }
 
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *) override
     {
         update();
     }
@@ -133,7 +133,7 @@ public:
     View(QGraphicsScene *scene) : QGraphicsView(scene) { }
 
 protected:
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE
+    void resizeEvent(QResizeEvent *event) override
     {
         QGraphicsView::resizeEvent(event);
         fitInView(sceneRect(), Qt::KeepAspectRatio);

examples/widgets/animation/appchooser/main.cpp

@@ -62,17 +62,17 @@ public:
     {
     }
 
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) Q_DECL_OVERRIDE
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) override
     {
         painter->drawPixmap(QPointF(), p);
     }
 
-    virtual void mousePressEvent(QGraphicsSceneMouseEvent * ) Q_DECL_OVERRIDE
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent *) override
     {
         emit clicked();
     }
 
-    virtual void setGeometry(const QRectF &rect) Q_DECL_OVERRIDE
+    virtual void setGeometry(const QRectF &rect) override
     {
         QGraphicsWidget::setGeometry(rect);
 
@@ -98,7 +98,7 @@ public:
     {
     }
 
-    virtual void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE
+    virtual void resizeEvent(QResizeEvent *) override
     {
         fitInView(sceneRect(), Qt::KeepAspectRatio);
     }

examples/widgets/animation/easing/animation.h

@@ -77,7 +77,7 @@ public:
         m_path = QPainterPath();
     }
 
-    void updateCurrentTime(int currentTime) Q_DECL_OVERRIDE
+    void updateCurrentTime(int currentTime) override
     {
         if (m_pathType == CirclePath) {
             if (m_path.isEmpty()) {

examples/widgets/animation/moveblocks/main.cpp

@@ -80,7 +80,7 @@ class QGraphicsRectWidget : public QGraphicsWidget
 {
 public:
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *,
-               QWidget *) Q_DECL_OVERRIDE
+               QWidget *) override
     {
         painter->fillRect(rect(), Qt::blue);
     }
@@ -98,14 +98,14 @@ public:
 
 protected:
 //![14]
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *event) override
     {
         return (event->type() == QEvent::Type(StateSwitchEvent::StateSwitchType))
             && (static_cast<StateSwitchEvent *>(event)->rand() == m_rand);
     }
 //![14]
 
-    virtual void onTransition(QEvent *) Q_DECL_OVERRIDE {}
+    virtual void onTransition(QEvent *) override {}
 
 private:
     int m_rand;
@@ -122,7 +122,7 @@ public:
 //![10]
 
 //![11]
-    virtual void onEntry(QEvent *) Q_DECL_OVERRIDE
+    virtual void onEntry(QEvent *) override
     {
         int n;
         while ((n = (qrand() % m_stateCount + 1)) == m_lastIndex)
@@ -130,7 +130,7 @@ public:
         m_lastIndex = n;
         machine()->postEvent(new StateSwitchEvent(n));
     }
-    virtual void onExit(QEvent *) Q_DECL_OVERRIDE {}
+    virtual void onExit(QEvent *) override {}
 //![11]
 
 //![12]
@@ -174,7 +174,7 @@ public:
     }
 
 protected:
-    virtual void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE
+    virtual void resizeEvent(QResizeEvent *event) override
     {
         fitInView(scene()->sceneRect());
         QGraphicsView::resizeEvent(event);

examples/widgets/animation/states/main.cpp

@@ -58,12 +58,12 @@ public:
     {
     }
 
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) Q_DECL_OVERRIDE
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) override
     {
         painter->drawPixmap(QPointF(), p);
     }
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE
+    QRectF boundingRect() const override
     {
         return QRectF( QPointF(0, 0), p.size());
     }
@@ -79,7 +79,7 @@ public:
     {
     }
 
-    virtual void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE
+    virtual void resizeEvent(QResizeEvent *) override
     {
         fitInView(sceneRect(), Qt::KeepAspectRatio);
     }

examples/widgets/animation/stickman/graphicsview.h

@@ -61,8 +61,8 @@ public:
     GraphicsView(QWidget *parent = 0);
 
 protected:
-    virtual void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    void keyPressEvent(QKeyEvent *) Q_DECL_OVERRIDE;
+    virtual void resizeEvent(QResizeEvent *event) override;
+    void keyPressEvent(QKeyEvent *) override;
 
 signals:
     void keyPressed(int key);

examples/widgets/animation/stickman/lifecycle.cpp

@@ -70,7 +70,7 @@ public:
         setTargetState(target);
     }
 
-    virtual bool eventTest(QEvent *e) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *e) override
     {
         if (QSignalTransition::eventTest(e)) {
             QVariant key = static_cast<QStateMachine::SignalEvent*>(e)->arguments().at(0);
@@ -95,7 +95,7 @@ public:
         startTimer(1000);
     }
 
-    virtual bool eventTest(QEvent *e) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *e) override
     {
         return QEventTransition::eventTest(e) && ((qrand() % 50) == 0);
     }

examples/widgets/animation/stickman/node.h

@@ -60,18 +60,18 @@ public:
     explicit Node(const QPointF &pos, QGraphicsItem *parent = 0);
     ~Node();
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 
 signals:
     void positionChanged();
 
 protected:
-    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
 
-    void mousePressEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *) Q_DECL_OVERRIDE;
+    void mousePressEvent(QGraphicsSceneMouseEvent *) override;
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *) override;
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *) override;
 
 private:
     bool m_dragging;

examples/widgets/animation/stickman/rectbutton.h

@@ -60,13 +60,13 @@ public:
     RectButton(QString buttonText);
     ~RectButton();
 
-    virtual QRectF boundingRect() const Q_DECL_OVERRIDE;
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual QRectF boundingRect() const override;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 
 protected:
     QString m_ButtonText;
 
-    virtual void mousePressEvent (QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
+    virtual void mousePressEvent (QGraphicsSceneMouseEvent *event) override;
 
 signals:
     void clicked();

examples/widgets/animation/stickman/stickman.h

@@ -69,8 +69,8 @@ public:
     StickMan();
     ~StickMan();
 
-    virtual QRectF boundingRect() const Q_DECL_OVERRIDE;
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual QRectF boundingRect() const override;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 
     int nodeCount() const;
     Node *node(int idx) const;
@@ -92,7 +92,7 @@ public slots:
     void childPositionChanged();
 
 protected:
-    void timerEvent(QTimerEvent *e) Q_DECL_OVERRIDE;
+    void timerEvent(QTimerEvent *e) override;
 
 private:
 

examples/widgets/animation/sub-attaq/boat.h

@@ -86,7 +86,7 @@ public:
 
     void updateBoatMovement();
 
-    virtual int type() const Q_DECL_OVERRIDE;
+    virtual int type() const override;
 
 signals:
     void boatDestroyed();

examples/widgets/animation/sub-attaq/boat_p.h

@@ -81,7 +81,7 @@ public:
     {
     }
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *event) override
     {
         if (!QKeyEventTransition::eventTest(event))
             return false;
@@ -100,13 +100,13 @@ public:
     {
     }
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *event) override
     {
         if (!QKeyEventTransition::eventTest(event))
             return false;
         return (boat->currentSpeed() >= 0);
     }
-    void onTransition(QEvent *) Q_DECL_OVERRIDE
+    void onTransition(QEvent *) override
     {
         //We decrease the speed if needed
         if (key == Qt::Key_Left && boat->currentDirection() == Boat::Right)
@@ -131,7 +131,7 @@ public:
     {
     }
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE
+    virtual bool eventTest(QEvent *event) override
     {
         if (!QKeyEventTransition::eventTest(event))
             return false;
@@ -150,7 +150,7 @@ public:
     {
     }
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE
+    void onEntry(QEvent *) override
     {
         boat->setCurrentDirection(Boat::Right);
         boat->updateBoatMovement();
@@ -167,7 +167,7 @@ public:
     {
     }
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE
+    void onEntry(QEvent *) override
     {
         boat->setCurrentDirection(Boat::Left);
         boat->updateBoatMovement();
@@ -184,7 +184,7 @@ public:
     {
     }
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE
+    void onEntry(QEvent *) override
     {
         boat->setCurrentSpeed(0);
         boat->setCurrentDirection(Boat::None);
@@ -202,7 +202,7 @@ public:
     {
     }
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE
+    void onEntry(QEvent *) override
     {
         Bomb *b = new Bomb();
         b->setPos(boat->x()+boat->size().width(),boat->y());
@@ -223,7 +223,7 @@ public:
     {
     }
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE
+    void onEntry(QEvent *) override
     {
         Bomb *b = new Bomb();
         b->setPos(boat->x() - b->size().width(), boat->y());

examples/widgets/animation/sub-attaq/pixmapitem.h

@@ -63,8 +63,8 @@ public:
     PixmapItem(const QString &fileName, GraphicsScene::Mode mode, QGraphicsItem * parent = 0);
     PixmapItem(const QString &fileName, QGraphicsScene *scene);
     QSizeF size() const;
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) override;
 private:
     QPixmap pix;
 };

examples/widgets/animation/sub-attaq/qanimationstate.h

@@ -80,9 +80,9 @@ signals:
     void animationFinished();
 
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
-    void onExit(QEvent *) Q_DECL_OVERRIDE;
-    bool event(QEvent *e) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
+    void onExit(QEvent *) override;
+    bool event(QEvent *e) override;
 
 private:
     Q_DISABLE_COPY(QAnimationState)

examples/widgets/animation/sub-attaq/states.h

@@ -72,7 +72,7 @@ public:
     ~PlayState();
 
  protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
 
 private :
     GraphicsScene *scene;
@@ -94,7 +94,7 @@ class LevelState : public QState
 public:
     LevelState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
 private :
     void initializeLevel();
     GraphicsScene *scene;
@@ -107,8 +107,8 @@ public:
     explicit PauseState(GraphicsScene *scene, QState *parent = 0);
 
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
-    void onExit(QEvent *) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
+    void onExit(QEvent *) override;
 private :
     GraphicsScene *scene;
 };
@@ -119,8 +119,8 @@ public:
     LostState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
 
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
-    void onExit(QEvent *) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
+    void onExit(QEvent *) override;
 private :
     GraphicsScene *scene;
     PlayState *game;
@@ -132,8 +132,8 @@ public:
     WinState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
 
 protected:
-    void onEntry(QEvent *) Q_DECL_OVERRIDE;
-    void onExit(QEvent *) Q_DECL_OVERRIDE;
+    void onEntry(QEvent *) override;
+    void onExit(QEvent *) override;
 private :
     GraphicsScene *scene;
     PlayState *game;
@@ -152,7 +152,7 @@ class UpdateScoreTransition : public QSignalTransition
 public:
     UpdateScoreTransition(GraphicsScene *scene, PlayState *game, QAbstractState *target);
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE;
+    virtual bool eventTest(QEvent *event) override;
 private:
     PlayState * game;
     GraphicsScene *scene;
@@ -164,7 +164,7 @@ class WinTransition : public QSignalTransition
 public:
     WinTransition(GraphicsScene *scene, PlayState *game, QAbstractState *target);
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE;
+    virtual bool eventTest(QEvent *event) override;
 private:
     PlayState * game;
     GraphicsScene *scene;
@@ -176,7 +176,7 @@ private:
 public:
     CustomSpaceTransition(QWidget *widget, PlayState *game, QEvent::Type type, int key);
 protected:
-    virtual bool eventTest(QEvent *event) Q_DECL_OVERRIDE;
+    virtual bool eventTest(QEvent *event) override;
 private:
     PlayState *game;
 };

examples/widgets/animation/sub-attaq/submarine.h

@@ -81,7 +81,7 @@ public:
     void launchTorpedo(int speed);
     void destroy();
 
-    virtual int type() const Q_DECL_OVERRIDE;
+    virtual int type() const override;
 
     QGraphicsRotation *rotation() const { return graphicsRotation; }
 

examples/widgets/animation/sub-attaq/submarine_p.h

@@ -93,7 +93,7 @@ protected slots:
     }
 
 protected:
-    void onEntry(QEvent *e) Q_DECL_OVERRIDE
+    void onEntry(QEvent *e) override
     {
         if (submarine->currentDirection() == SubMarine::Left) {
             movementAnimation->setEndValue(QPointF(0,submarine->y()));
@@ -125,14 +125,14 @@ public:
     }
 
 protected:
-    void onEntry(QEvent *e) Q_DECL_OVERRIDE
+    void onEntry(QEvent *e) override
     {
         returnAnimation->stop();
         returnAnimation->setEndValue(submarine->currentDirection() == SubMarine::Right ? 360. : 180.);
         QAnimationState::onEntry(e);
     }
 
-    void onExit(QEvent *e) Q_DECL_OVERRIDE
+    void onExit(QEvent *e) override
     {
         submarine->currentDirection() == SubMarine::Right ? submarine->setCurrentDirection(SubMarine::Left) : submarine->setCurrentDirection(SubMarine::Right);
         QAnimationState::onExit(e);

examples/widgets/desktop/screenshot/screenshot.h

@@ -74,7 +74,7 @@ public:
     Screenshot();
 
 protected:
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
+    void resizeEvent(QResizeEvent *event) override;
 
 private slots:
     void newScreenshot();

examples/widgets/desktop/systray/window.h

@@ -78,10 +78,10 @@ class Window : public QDialog
 public:
     Window();
 
-    void setVisible(bool visible) Q_DECL_OVERRIDE;
+    void setVisible(bool visible) override;
 
 protected:
-    void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
+    void closeEvent(QCloseEvent *event) override;
 
 private slots:
     void setIcon(int index);

examples/widgets/dialogs/classwizard/classwizard.h

@@ -69,7 +69,7 @@ class ClassWizard : public QWizard
 public:
     ClassWizard(QWidget *parent = 0);
 
-    void accept() Q_DECL_OVERRIDE;
+    void accept() override;
 };
 //! [0]
 
@@ -117,7 +117,7 @@ public:
     CodeStylePage(QWidget *parent = 0);
 
 protected:
-    void initializePage() Q_DECL_OVERRIDE;
+    void initializePage() override;
 
 private:
     QCheckBox *commentCheckBox;
@@ -138,7 +138,7 @@ public:
     OutputFilesPage(QWidget *parent = 0);
 
 protected:
-    void initializePage() Q_DECL_OVERRIDE;
+    void initializePage() override;
 
 private:
     QLabel *outputDirLabel;
@@ -157,7 +157,7 @@ public:
     ConclusionPage(QWidget *parent = 0);
 
 protected:
-    void initializePage() Q_DECL_OVERRIDE;
+    void initializePage() override;
 
 private:
     QLabel *label;

examples/widgets/dialogs/licensewizard/licensewizard.h

@@ -88,7 +88,7 @@ class IntroPage : public QWizardPage
 public:
     IntroPage(QWidget *parent = 0);
 
-    int nextId() const Q_DECL_OVERRIDE;
+    int nextId() const override;
 
 private:
     QLabel *topLabel;
@@ -105,7 +105,7 @@ class EvaluatePage : public QWizardPage
 public:
     EvaluatePage(QWidget *parent = 0);
 
-    int nextId() const Q_DECL_OVERRIDE;
+    int nextId() const override;
 
 private:
     QLabel *nameLabel;
@@ -122,7 +122,7 @@ class RegisterPage : public QWizardPage
 public:
     RegisterPage(QWidget *parent = 0);
 
-    int nextId() const Q_DECL_OVERRIDE;
+    int nextId() const override;
 
 private:
     QLabel *nameLabel;
@@ -138,7 +138,7 @@ class DetailsPage : public QWizardPage
 public:
     DetailsPage(QWidget *parent = 0);
 
-    int nextId() const Q_DECL_OVERRIDE;
+    int nextId() const override;
 
 private:
     QLabel *companyLabel;
@@ -157,9 +157,9 @@ class ConclusionPage : public QWizardPage
 public:
     ConclusionPage(QWidget *parent = 0);
 
-    void initializePage() Q_DECL_OVERRIDE;
-    int nextId() const Q_DECL_OVERRIDE;
-    void setVisible(bool visible) Q_DECL_OVERRIDE;
+    void initializePage() override;
+    int nextId() const override;
+    void setVisible(bool visible) override;
 
 private slots:
     void printButtonClicked();

examples/widgets/draganddrop/draggableicons/dragwidget.h

@@ -65,10 +65,10 @@ public:
     DragWidget(QWidget *parent = 0);
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 };
 //! [0]
 

examples/widgets/draganddrop/draggabletext/dragwidget.h

@@ -64,9 +64,9 @@ public:
     DragWidget(QWidget *parent = 0);
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 };
 
 #endif // DRAGWIDGET_H

examples/widgets/draganddrop/dropsite/droparea.h

@@ -74,10 +74,10 @@ signals:
 
 //! [DropArea header part2]
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dragLeaveEvent(QDragLeaveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dragLeaveEvent(QDragLeaveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
 private:
     QLabel *label;

examples/widgets/draganddrop/fridgemagnets/dragwidget.h

@@ -65,10 +65,10 @@ public:
     DragWidget(QWidget *parent = 0);
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 };
 //! [0]
 

examples/widgets/draganddrop/puzzle/pieceslist.h

@@ -64,10 +64,10 @@ public:
     static QString puzzleMimeType() { return QStringLiteral("image/x-puzzle-piece"); }
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
-    void startDrag(Qt::DropActions supportedActions) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void startDrag(Qt::DropActions supportedActions) override;
 
     int m_PieceSize;
 };

examples/widgets/draganddrop/puzzle/puzzlewidget.h

@@ -77,12 +77,12 @@ signals:
     void puzzleCompleted();
 
 protected:
-    void dragEnterEvent(QDragEnterEvent *event) Q_DECL_OVERRIDE;
-    void dragLeaveEvent(QDragLeaveEvent *event) Q_DECL_OVERRIDE;
-    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QDropEvent *event) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragLeaveEvent(QDragLeaveEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
 
 private:
     const QRect targetSquare(const QPoint &position) const;

examples/widgets/effects/blurpicker/blureffect.h

@@ -63,7 +63,7 @@ public:
 
     QRectF boundingRect() const;
 
-    void draw(QPainter *painter) Q_DECL_OVERRIDE;
+    void draw(QPainter *painter) override;
 
 private:
     void adjustForItem();

examples/widgets/effects/blurpicker/blurpicker.h

@@ -69,9 +69,9 @@ public:
     void setIndex(qreal);
 
 protected:
-    void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void keyPressEvent(QKeyEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
 
 private:
     void setupScene();

examples/widgets/effects/lighting/lighting.h

@@ -68,7 +68,7 @@ private:
     void setupScene();
 
 protected:
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
+    void resizeEvent(QResizeEvent *event) override;
 
 private:
     qreal angle;

examples/widgets/gestures/imagegestures/imagewidget.h

@@ -75,10 +75,10 @@ public:
     void grabGestures(const QList<Qt::GestureType> &gestures);
 
 protected:
-    bool event(QEvent *event) Q_DECL_OVERRIDE;
-    void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
-    void mouseDoubleClickEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    bool event(QEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
 
 private:
     bool gestureEvent(QGestureEvent *event);

examples/widgets/graphicsview/basicgraphicslayouts/layoutitem.h

@@ -61,12 +61,12 @@ public:
     LayoutItem(QGraphicsItem *parent = 0);
     ~LayoutItem();
     // Inherited from QGraphicsLayoutItem
-    void setGeometry(const QRectF &geom) Q_DECL_OVERRIDE;
-    QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const Q_DECL_OVERRIDE;
+    void setGeometry(const QRectF &geom) override;
+    QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override;
 
     // Inherited from QGraphicsItem
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 
 private:
     QPixmap *m_pix;

examples/widgets/graphicsview/boxes/glbuffers.h

@@ -110,8 +110,8 @@ public:
     GLTexture2D(int width, int height);
     explicit GLTexture2D(const QString& fileName, int width = 0, int height = 0);
     void load(int width, int height, QRgb *data);
-    virtual void bind() Q_DECL_OVERRIDE;
-    virtual void unbind() Q_DECL_OVERRIDE;
+    virtual void bind() override;
+    virtual void unbind() override;
 };
 
 class GLTexture3D : public GLTexture
@@ -121,8 +121,8 @@ public:
     // TODO: Implement function below
     //GLTexture3D(const QString& fileName, int width = 0, int height = 0);
     void load(int width, int height, int depth, QRgb *data);
-    virtual void bind() Q_DECL_OVERRIDE;
-    virtual void unbind() Q_DECL_OVERRIDE;
+    virtual void bind() override;
+    virtual void unbind() override;
 };
 
 class GLTextureCube : public GLTexture
@@ -131,8 +131,8 @@ public:
     GLTextureCube(int size);
     explicit GLTextureCube(const QStringList& fileNames, int size = 0);
     void load(int size, int face, QRgb *data);
-    virtual void bind() Q_DECL_OVERRIDE;
-    virtual void unbind() Q_DECL_OVERRIDE;
+    virtual void bind() override;
+    virtual void unbind() override;
 };
 
 // TODO: Define and implement class below
@@ -146,7 +146,7 @@ public:
     void begin(int face);
     // end rendering
     void end();
-    virtual bool failed() const Q_DECL_OVERRIDE {return m_failed || m_fbo.failed();}
+    virtual bool failed() const override {return m_failed || m_fbo.failed();}
 
     static void getViewMatrix(QMatrix4x4& mat, int face);
     static void getProjectionMatrix(QMatrix4x4& mat, float nearZ, float farZ);

examples/widgets/graphicsview/boxes/main.cpp

@@ -67,7 +67,7 @@ public:
     }
 
 protected:
-    void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE {
+    void resizeEvent(QResizeEvent *event) override {
         if (scene())
             scene()->setSceneRect(QRect(QPoint(0, 0), event->size()));
         QGraphicsView::resizeEvent(event);

examples/widgets/graphicsview/boxes/qtbox.h

@@ -63,18 +63,18 @@ public:
 
     ItemBase(int size, int x, int y);
     virtual ~ItemBase();
-    virtual QRectF boundingRect() const Q_DECL_OVERRIDE;
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual QRectF boundingRect() const override;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 protected:
     virtual ItemBase *createNew(int size, int x, int y) = 0;
-    virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) Q_DECL_OVERRIDE;
-    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event) Q_DECL_OVERRIDE;
-    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
-    virtual void wheelEvent(QGraphicsSceneWheelEvent *event) Q_DECL_OVERRIDE;
-    virtual int type() const Q_DECL_OVERRIDE;
+    virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
+    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void keyPressEvent(QKeyEvent *event) override;
+    virtual void wheelEvent(QGraphicsSceneWheelEvent *event) override;
+    virtual int type() const override;
     bool isInResizeArea(const QPointF &pos);
 
     static void duplicateSelectedItems(QGraphicsScene *scene);
@@ -92,9 +92,9 @@ class QtBox : public ItemBase
 public:
     QtBox(int size, int x, int y);
     virtual ~QtBox();
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 protected:
-    virtual ItemBase *createNew(int size, int x, int y) Q_DECL_OVERRIDE;
+    virtual ItemBase *createNew(int size, int x, int y) override;
 private:
     QVector3D m_vertices[8];
     QVector3D m_texCoords[4];
@@ -106,9 +106,9 @@ class CircleItem : public ItemBase
 {
 public:
     CircleItem(int size, int x, int y);
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 protected:
-    virtual ItemBase *createNew(int size, int x, int y) Q_DECL_OVERRIDE;
+    virtual ItemBase *createNew(int size, int x, int y) override;
 
     QColor m_color;
 };
@@ -117,9 +117,9 @@ class SquareItem : public ItemBase
 {
 public:
     SquareItem(int size, int x, int y);
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 protected:
-    virtual ItemBase *createNew(int size, int x, int y) Q_DECL_OVERRIDE;
+    virtual ItemBase *createNew(int size, int x, int y) override;
 
     QPixmap m_image;
 };

examples/widgets/graphicsview/boxes/scene.h

@@ -81,13 +81,13 @@ class ColorEdit : public ParameterEdit
 public:
     ColorEdit(QRgb initialColor, int id);
     QRgb color() const {return m_color;}
-    virtual void emitChange() Q_DECL_OVERRIDE {emit colorChanged(m_color, m_id);}
+    virtual void emitChange() override { emit colorChanged(m_color, m_id); }
 public slots:
     void editDone();
 signals:
     void colorChanged(QRgb color, int id);
 protected:
-    virtual void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    virtual void mousePressEvent(QMouseEvent *event) override;
     void setColor(QRgb color); // also emits colorChanged()
 private:
     QGraphicsScene *m_dialogParentScene;
@@ -103,7 +103,7 @@ class FloatEdit : public ParameterEdit
 public:
     FloatEdit(float initialValue, int id);
     float value() const {return m_value;}
-    virtual void emitChange() Q_DECL_OVERRIDE {emit valueChanged(m_value, m_id);}
+    virtual void emitChange() override { emit valueChanged(m_value, m_id); }
 public slots:
     void editDone();
 signals:
@@ -120,9 +120,9 @@ class GraphicsWidget : public QGraphicsProxyWidget
 public:
     GraphicsWidget() : QGraphicsProxyWidget(0, Qt::Window) {}
 protected:
-    virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
-    virtual void resizeEvent(QGraphicsSceneResizeEvent *event) Q_DECL_OVERRIDE;
-    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
+    virtual void resizeEvent(QGraphicsSceneResizeEvent *event) override;
+    virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 };
 
 class TwoSidedGraphicsWidget : public QObject
@@ -162,7 +162,7 @@ signals:
     void shaderChanged(int);
     void doubleClicked();
 protected:
-    virtual void mouseDoubleClickEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
 
     QVector<QByteArray> m_parameterNames;
     QComboBox *m_textureCombo;
@@ -189,7 +189,7 @@ signals:
     void doubleClicked();
     void newItemTriggered(ItemDialog::ItemType type);
 protected:
-    virtual void mouseDoubleClickEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    virtual void mouseDoubleClickEvent(QMouseEvent *event) override;
 };
 
 class Scene : public QGraphicsScene
@@ -198,7 +198,7 @@ class Scene : public QGraphicsScene
 public:
     Scene(int width, int height, int maxTextureSize);
     ~Scene();
-    virtual void drawBackground(QPainter *painter, const QRectF &rect) Q_DECL_OVERRIDE;
+    virtual void drawBackground(QPainter *painter, const QRectF &rect) override;
 
 public slots:
     void setShader(int index);
@@ -214,10 +214,10 @@ protected:
     void defaultStates();
     void renderCubemaps();
 
-    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    virtual void wheelEvent(QGraphicsSceneWheelEvent * event) Q_DECL_OVERRIDE;
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
+    virtual void wheelEvent(QGraphicsSceneWheelEvent * event) override;
 private:
     void initGL();
     QPointF pixelPosToViewPos(const QPointF& p);

examples/widgets/graphicsview/chip/chip.h

@@ -59,14 +59,14 @@ class Chip : public QGraphicsItem
 public:
     Chip(const QColor &color, int x, int y);
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    QPainterPath shape() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    QPainterPath shape() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *item, QWidget *widget) override;
 
 protected:
-    void mousePressEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
+    void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
 
 private:
     int x;

examples/widgets/graphicsview/chip/view.h

@@ -70,7 +70,7 @@ public:
 
 protected:
 #ifndef QT_NO_WHEELEVENT
-    void wheelEvent(QWheelEvent *) Q_DECL_OVERRIDE;
+    void wheelEvent(QWheelEvent *) override;
 #endif
 
 private:

examples/widgets/graphicsview/collidingmice/mouse.h

@@ -59,13 +59,13 @@ class Mouse : public QGraphicsItem
 public:
     Mouse();
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    QPainterPath shape() const Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    QPainterPath shape() const override;
     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
-               QWidget *widget) Q_DECL_OVERRIDE;
+               QWidget *widget) override;
 
 protected:
-    void advance(int step) Q_DECL_OVERRIDE;
+    void advance(int step) override;
 
 private:
     qreal angle;

examples/widgets/graphicsview/diagramscene/arrow.h

@@ -73,9 +73,9 @@ public:
     Arrow(DiagramItem *startItem, DiagramItem *endItem,
       QGraphicsItem *parent = 0);
 
-    int type() const Q_DECL_OVERRIDE { return Type; }
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    QPainterPath shape() const Q_DECL_OVERRIDE;
+    int type() const override { return Type; }
+    QRectF boundingRect() const override;
+    QPainterPath shape() const override;
     void setColor(const QColor &color) { myColor = color; }
     DiagramItem *startItem() const { return myStartItem; }
     DiagramItem *endItem() const { return myEndItem; }
@@ -83,7 +83,7 @@ public:
     void updatePosition();
 
 protected:
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 
 private:
     DiagramItem *myStartItem;

examples/widgets/graphicsview/diagramscene/diagramitem.h

@@ -85,11 +85,11 @@ public:
     QPolygonF polygon() const { return myPolygon; }
     void addArrow(Arrow *arrow);
     QPixmap image() const;
-    int type() const Q_DECL_OVERRIDE { return Type;}
+    int type() const override { return Type;}
 
 protected:
-    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) Q_DECL_OVERRIDE;
-    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
+    void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
 
 private:
     DiagramType myDiagramType;

examples/widgets/graphicsview/diagramscene/diagramscene.h

@@ -95,9 +95,9 @@ signals:
     void itemSelected(QGraphicsItem *item);
 
 protected:
-    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) Q_DECL_OVERRIDE;
+    void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
 
 private:
     bool isItemChange(int type);

examples/widgets/graphicsview/diagramscene/diagramtextitem.h

@@ -71,16 +71,16 @@ public:
 
     DiagramTextItem(QGraphicsItem *parent = 0);
 
-    int type() const Q_DECL_OVERRIDE { return Type; }
+    int type() const override { return Type; }
 
 signals:
     void lostFocus(DiagramTextItem *item);
     void selectedChange(QGraphicsItem *item);
 
 protected:
-    QVariant itemChange(GraphicsItemChange change, const QVariant &value) Q_DECL_OVERRIDE;
-    void focusOutEvent(QFocusEvent *event) Q_DECL_OVERRIDE;
-    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
+    void focusOutEvent(QFocusEvent *event) override;
+    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;
 };
 //! [0]
 

examples/widgets/graphicsview/dragdroprobot/coloritem.h

@@ -59,13 +59,13 @@ class ColorItem : public QGraphicsItem
 public:
     ColorItem();
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
 
 protected:
-    void mousePressEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseMoveEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
-    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) Q_DECL_OVERRIDE;
+    void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
+    void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
 
 private:
     QColor color;

examples/widgets/graphicsview/dragdroprobot/main.cpp

@@ -63,7 +63,7 @@ public:
     }
 
 protected:
-    virtual void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE
+    virtual void resizeEvent(QResizeEvent *) override
     {
     }
 };

examples/widgets/graphicsview/dragdroprobot/robot.h

@@ -65,9 +65,9 @@ public:
     RobotPart(QGraphicsItem *parent = 0);
 
 protected:
-    void dragEnterEvent(QGraphicsSceneDragDropEvent *event) Q_DECL_OVERRIDE;
-    void dragLeaveEvent(QGraphicsSceneDragDropEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QGraphicsSceneDragDropEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QGraphicsSceneDragDropEvent *event) override;
+    void dragLeaveEvent(QGraphicsSceneDragDropEvent *event) override;
+    void dropEvent(QGraphicsSceneDragDropEvent *event) override;
 
     QColor color;
     bool dragOver;
@@ -80,12 +80,12 @@ class RobotHead : public RobotPart
 public:
     RobotHead(QGraphicsItem *parent = 0);
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 
 protected:
-    void dragEnterEvent(QGraphicsSceneDragDropEvent *event) Q_DECL_OVERRIDE;
-    void dropEvent(QGraphicsSceneDragDropEvent *event) Q_DECL_OVERRIDE;
+    void dragEnterEvent(QGraphicsSceneDragDropEvent *event) override;
+    void dropEvent(QGraphicsSceneDragDropEvent *event) override;
 
 private:
     QPixmap pixmap;
@@ -98,8 +98,8 @@ class RobotTorso : public RobotPart
 public:
     RobotTorso(QGraphicsItem *parent = 0);
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 };
 //! [2]
 
@@ -109,8 +109,8 @@ class RobotLimb : public RobotPart
 public:
     RobotLimb(QGraphicsItem *parent = 0);
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 };
 //! [3]
 
@@ -120,8 +120,8 @@ class Robot : public RobotPart
 public:
     Robot(QGraphicsItem *parent = 0);
 
-    QRectF boundingRect() const Q_DECL_OVERRIDE;
-    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) Q_DECL_OVERRIDE;
+    QRectF boundingRect() const override;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0) override;
 };
 //! [4]