Assistant: Add missing override and remove redundant virtual

Change-Id: I29ad763c013b9a41862c45a7e39b34d9c856ab04
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Karsten Heimrich <karsten.heimrich@qt.io>

39 files changed, 113 insertions, 113 deletions

diff --git a/src/assistant/assistant/aboutdialog.h b/src/assistant/assistant/aboutdialog.h
index 68661ac23..65e5cd7e9 100644
--- a/src/assistant/assistant/aboutdialog.h
+++ b/src/assistant/assistant/aboutdialog.h
@@ -45,11 +45,11 @@ class AboutLabel : public QTextBrowser
 public:
     AboutLabel(QWidget *parent = 0);
     void setText(const QString &text, const QByteArray &resources);
-    QSize minimumSizeHint() const;
+    QSize minimumSizeHint() const override;
 
 private:
-    QVariant loadResource(int type, const QUrl &name);
-    void setSource(const QUrl &url);
+    QVariant loadResource(int type, const QUrl &name) override;
+    void setSource(const QUrl &url) override;
 
     QMap<QString, QByteArray> m_resourceMap;
 };
diff --git a/src/assistant/assistant/bookmarkdialog.h b/src/assistant/assistant/bookmarkdialog.h
index 5db2af996..3bac1cb5b 100644
--- a/src/assistant/assistant/bookmarkdialog.h
+++ b/src/assistant/assistant/bookmarkdialog.h
@@ -46,7 +46,7 @@ public:
 
 private:
     bool isRootItem(const QModelIndex &index) const;
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
 
 private slots:
     void currentIndexChanged(int index);
diff --git a/src/assistant/assistant/bookmarkfiltermodel.h b/src/assistant/assistant/bookmarkfiltermodel.h
index a8ab770c2..8f154f4c6 100644
--- a/src/assistant/assistant/bookmarkfiltermodel.h
+++ b/src/assistant/assistant/bookmarkfiltermodel.h
@@ -46,22 +46,22 @@ class BookmarkFilterModel : public QAbstractProxyModel
 public:
     explicit BookmarkFilterModel(QObject *parent = 0);
 
-    void setSourceModel(QAbstractItemModel *sourceModel);
+    void setSourceModel(QAbstractItemModel *sourceModel) override;
 
-    int rowCount(const QModelIndex &index) const;
-    int columnCount(const QModelIndex &index) const;
+    int rowCount(const QModelIndex &index) const override;
+    int columnCount(const QModelIndex &index) const override;
 
-    QModelIndex mapToSource(const QModelIndex &proxyIndex) const;
-    QModelIndex mapFromSource(const QModelIndex &sourceIndex) const;
+    QModelIndex mapToSource(const QModelIndex &proxyIndex) const override;
+    QModelIndex mapFromSource(const QModelIndex &sourceIndex) const override;
 
-    QModelIndex parent(const QModelIndex &child) const;
-    QModelIndex index(int row, int column, const QModelIndex &parent) const;
+    QModelIndex parent(const QModelIndex &child) const override;
+    QModelIndex index(int row, int column, const QModelIndex &parent) const override;
 
-    Qt::DropActions supportedDropActions () const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    Qt::DropActions supportedDropActions () const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
 
-    QVariant data(const QModelIndex &index, int role) const;
-    bool setData(const QModelIndex &index, const QVariant &value, int role);
+    QVariant data(const QModelIndex &index, int role) const override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
 
     void filterBookmarks();
     void filterBookmarkFolders();
@@ -94,10 +94,10 @@ class BookmarkTreeModel : public QSortFilterProxyModel
     Q_OBJECT
 public:
     BookmarkTreeModel(QObject *parent = 0);
-    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
 
 protected:
-    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const;
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/assistant/assistant/bookmarkmanager.h b/src/assistant/assistant/bookmarkmanager.h
index 6c4693f94..a9637eaa7 100644
--- a/src/assistant/assistant/bookmarkmanager.h
+++ b/src/assistant/assistant/bookmarkmanager.h
@@ -71,7 +71,7 @@ private:
     ~BookmarkManager();
 
     void removeItem(const QModelIndex &index);
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
     void buildBookmarksMenu(const QModelIndex &index, QMenu *menu);
     void showBookmarkDialog(const QString &name, const QString &url);
 
@@ -126,7 +126,7 @@ signals:
     void focusInEvent();
 
 private:
-    void focusInEvent(QFocusEvent *event);
+    void focusInEvent(QFocusEvent *event) override;
 };
 
 class BookmarkManager::BookmarkTreeView : public QTreeView
diff --git a/src/assistant/assistant/bookmarkmanagerwidget.h b/src/assistant/assistant/bookmarkmanagerwidget.h
index a5c32c7eb..231bb4b25 100644
--- a/src/assistant/assistant/bookmarkmanagerwidget.h
+++ b/src/assistant/assistant/bookmarkmanagerwidget.h
@@ -49,7 +49,7 @@ public:
     ~BookmarkManagerWidget();
 
 protected:
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
 
 signals:
     void setSource(const QUrl &url);
@@ -60,7 +60,7 @@ signals:
 private:
     void renameItem(const QModelIndex &index);
     void selectNextIndex(bool direction) const;
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
 
 private slots:
     void findNext();
diff --git a/src/assistant/assistant/bookmarkmodel.h b/src/assistant/assistant/bookmarkmodel.h
index a14479416..15965510b 100644
--- a/src/assistant/assistant/bookmarkmodel.h
+++ b/src/assistant/assistant/bookmarkmodel.h
@@ -56,31 +56,31 @@ public:
     QModelIndex addItem(const QModelIndex &parent, bool isFolder = false);
     bool removeItem(const QModelIndex &index);
 
-    int rowCount(const QModelIndex &index = QModelIndex()) const;
-    int columnCount(const QModelIndex &index = QModelIndex()) const;
+    int rowCount(const QModelIndex &index = QModelIndex()) const override;
+    int columnCount(const QModelIndex &index = QModelIndex()) const override;
 
-    QModelIndex parent(const QModelIndex &index) const;
-    QModelIndex index(int row, int column, const QModelIndex &index) const;
+    QModelIndex parent(const QModelIndex &index) const override;
+    QModelIndex index(int row, int column, const QModelIndex &index) const override;
 
-    Qt::DropActions supportedDropActions () const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    Qt::DropActions supportedDropActions () const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
 
-    QVariant data(const QModelIndex &index, int role) const;
+    QVariant data(const QModelIndex &index, int role) const override;
     void setData(const QModelIndex &index, const QVector<QVariant> &data);
-    bool setData(const QModelIndex &index, const QVariant &value, int role);
-    QVariant headerData(int section, Qt::Orientation orientation, int role) const;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
+    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
 
     QModelIndex indexFromItem(BookmarkItem *item) const;
     BookmarkItem *itemFromIndex(const QModelIndex &index) const;
     QList<QPersistentModelIndex> indexListFor(const QString &label) const;
 
-    bool insertRows(int position, int rows, const QModelIndex &parent);
-    bool removeRows(int position, int rows, const QModelIndex &parent);
+    bool insertRows(int position, int rows, const QModelIndex &parent) override;
+    bool removeRows(int position, int rows, const QModelIndex &parent) override;
 
-    QStringList mimeTypes() const;
-    QMimeData* mimeData(const QModelIndexList &indexes) const;
+    QStringList mimeTypes() const override;
+    QMimeData* mimeData(const QModelIndexList &indexes) const override;
     bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row,
-        int column, const QModelIndex &parent);
+        int column, const QModelIndex &parent) override;
 
 private:
     void setupCache(const QModelIndex &parent);
diff --git a/src/assistant/assistant/centralwidget.h b/src/assistant/assistant/centralwidget.h
index 19d06e529..f61eb800a 100644
--- a/src/assistant/assistant/centralwidget.h
+++ b/src/assistant/assistant/centralwidget.h
@@ -135,8 +135,8 @@ signals:
     void addBookmark(const QString &title, const QString &url);
 
 protected:
-    void keyPressEvent(QKeyEvent *);
-    void focusInEvent(QFocusEvent *event);
+    void keyPressEvent(QKeyEvent *) override;
+    void focusInEvent(QFocusEvent *event) override;
 
 private slots:
     void highlightSearchTerms();
@@ -147,7 +147,7 @@ private slots:
 private:
     void initPrinter();
     void connectSignals(HelpViewer *page);
-    bool eventFilter(QObject *object, QEvent *e);
+    bool eventFilter(QObject *object, QEvent *e) override;
 
     void removePage(int index);
     void setCurrentPage(HelpViewer *page);
diff --git a/src/assistant/assistant/contentwindow.h b/src/assistant/assistant/contentwindow.h
index 5a1c2fc38..30b2b80c4 100644
--- a/src/assistant/assistant/contentwindow.h
+++ b/src/assistant/assistant/contentwindow.h
@@ -60,9 +60,9 @@ private slots:
     void itemClicked(const QModelIndex &index);
 
 private:
-    void focusInEvent(QFocusEvent *e);
-    void keyPressEvent(QKeyEvent *e);
-    bool eventFilter(QObject *o, QEvent *e);
+    void focusInEvent(QFocusEvent *e) override;
+    void keyPressEvent(QKeyEvent *e) override;
+    bool eventFilter(QObject *o, QEvent *e) override;
 
     QHelpContentWidget * const m_contentWidget;
     int m_expandDepth;
diff --git a/src/assistant/assistant/findwidget.h b/src/assistant/assistant/findwidget.h
index b6f80d78e..9b3e3ffbd 100644
--- a/src/assistant/assistant/findwidget.h
+++ b/src/assistant/assistant/findwidget.h
@@ -60,15 +60,15 @@ signals:
     void find(const QString &text, bool forward, bool incremental);
 
 protected:
-    void hideEvent(QHideEvent* event);
-    void showEvent(QShowEvent * event);
+    void hideEvent(QHideEvent* event) override;
+    void showEvent(QShowEvent * event) override;
 
 private slots:
     void updateButtons();
     void textChanged(const QString &text);
 
 private:
-    bool eventFilter(QObject *object, QEvent *e);
+    bool eventFilter(QObject *object, QEvent *e) override;
     QToolButton* setupToolButton(const QString &text, const QString &icon);
 
 private:
diff --git a/src/assistant/assistant/helpbrowsersupport.cpp b/src/assistant/assistant/helpbrowsersupport.cpp
index bd97f884c..746cef82f 100644
--- a/src/assistant/assistant/helpbrowsersupport.cpp
+++ b/src/assistant/assistant/helpbrowsersupport.cpp
@@ -93,13 +93,13 @@ public:
     HelpNetworkReply(const QNetworkRequest &request, const QByteArray &fileData,
         const QString &mimeType);
 
-    virtual void abort();
+    void abort() override;
 
-    virtual qint64 bytesAvailable() const
+    qint64 bytesAvailable() const override
         { return data.length() + QNetworkReply::bytesAvailable(); }
 
 protected:
-    virtual qint64 readData(char *data, qint64 maxlen);
+    qint64 readData(char *data, qint64 maxlen) override;
 
 private:
     QByteArray data;
@@ -155,8 +155,8 @@ public:
     }
 
 protected:
-    void abort() { TRACE_OBJ }
-    qint64 readData(char*, qint64) { TRACE_OBJ return qint64(-1); }
+    void abort() override { TRACE_OBJ }
+    qint64 readData(char*, qint64) override { TRACE_OBJ return qint64(-1); }
 };
 
 // -- HelpNetworkAccessManager
@@ -167,8 +167,8 @@ public:
     HelpNetworkAccessManager(QObject *parent);
 
 protected:
-    virtual QNetworkReply *createRequest(Operation op,
-        const QNetworkRequest &request, QIODevice *outgoingData = 0);
+    QNetworkReply *createRequest(Operation op,
+        const QNetworkRequest &request, QIODevice *outgoingData = 0) override;
 };
 
 HelpNetworkAccessManager::HelpNetworkAccessManager(QObject *parent)
diff --git a/src/assistant/assistant/helpviewer.h b/src/assistant/assistant/helpviewer.h
index aced6177d..3ea3c1dee 100644
--- a/src/assistant/assistant/helpviewer.h
+++ b/src/assistant/assistant/helpviewer.h
@@ -80,7 +80,7 @@ public:
     void setTitle(const QString &title);
 
     QUrl source() const;
-    void setSource(const QUrl &url);
+    void setSource(const QUrl &url) override;
 
     QString selectedText() const;
     bool isForwardAvailable() const;
@@ -102,10 +102,10 @@ public slots:
 #ifndef QT_NO_CLIPBOARD
     void copy();
 #endif
-    void home();
+    void home() override;
 
-    void forward();
-    void backward();
+    void forward() override;
+    void backward() override;
 
 signals:
     void titleChanged();
@@ -124,10 +124,10 @@ signals:
 #endif
 
 protected:
-    void keyPressEvent(QKeyEvent *e);
-    void wheelEvent(QWheelEvent *event);
-    void mousePressEvent(QMouseEvent *event);
-    void mouseReleaseEvent(QMouseEvent *event);
+    void keyPressEvent(QKeyEvent *e) override;
+    void wheelEvent(QWheelEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
 
 private slots:
     void actionChanged();
@@ -135,9 +135,9 @@ private slots:
     void setLoadFinished(bool ok);
 
 private:
-    bool eventFilter(QObject *obj, QEvent *event);
-    void contextMenuEvent(QContextMenuEvent *event);
-    QVariant loadResource(int type, const QUrl &name);
+    bool eventFilter(QObject *obj, QEvent *event) override;
+    void contextMenuEvent(QContextMenuEvent *event) override;
+    QVariant loadResource(int type, const QUrl &name) override;
     bool handleForwardBackwardMouseButtons(QMouseEvent *e);
 
 private:
diff --git a/src/assistant/assistant/indexwindow.h b/src/assistant/assistant/indexwindow.h
index d0d5c4860..af585b48f 100644
--- a/src/assistant/assistant/indexwindow.h
+++ b/src/assistant/assistant/indexwindow.h
@@ -64,8 +64,8 @@ private slots:
     void disableSearchLineEdit();
 
 private:
-    bool eventFilter(QObject *obj, QEvent *e);
-    void focusInEvent(QFocusEvent *e);
+    bool eventFilter(QObject *obj, QEvent *e) override;
+    void focusInEvent(QFocusEvent *e) override;
     void open(QHelpIndexWidget *indexWidget, const QModelIndex &index);
 
     QLineEdit *m_searchLineEdit;
diff --git a/src/assistant/assistant/mainwindow.h b/src/assistant/assistant/mainwindow.h
index 6292135f0..b0db48be6 100644
--- a/src/assistant/assistant/mainwindow.h
+++ b/src/assistant/assistant/mainwindow.h
@@ -110,7 +110,7 @@ private slots:
 private:
     bool initHelpDB(bool registerInternalDoc);
     void setupActions();
-    void closeEvent(QCloseEvent *e);
+    void closeEvent(QCloseEvent *e) override;
     void activateDockWidget(QWidget *w);
     void updateAboutMenuText();
     void setupFilterToolbar();
diff --git a/src/assistant/assistant/openpagesmodel.h b/src/assistant/assistant/openpagesmodel.h
index 49845da1a..781a65127 100644
--- a/src/assistant/assistant/openpagesmodel.h
+++ b/src/assistant/assistant/openpagesmodel.h
@@ -44,9 +44,9 @@ class OpenPagesModel : public QAbstractTableModel
     Q_OBJECT
     friend class OpenPagesManager;
 public:
-    virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    virtual int columnCount(const QModelIndex &parent = QModelIndex()) const;
-    virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
     void addPage(const QUrl &url, qreal zoom = 0);
     void removePage(int index);
diff --git a/src/assistant/assistant/openpagesswitcher.h b/src/assistant/assistant/openpagesswitcher.h
index 2b58d4704..eb76b9067 100644
--- a/src/assistant/assistant/openpagesswitcher.h
+++ b/src/assistant/assistant/openpagesswitcher.h
@@ -51,9 +51,9 @@ public:
     void selectAndHide();
     void selectCurrentPage();
 
-    void setVisible(bool visible);
-    void focusInEvent(QFocusEvent *event);
-    bool eventFilter(QObject *object, QEvent *event);
+    void setVisible(bool visible) override;
+    void focusInEvent(QFocusEvent *event) override;
+    bool eventFilter(QObject *object, QEvent *event) override;
 
 signals:
     void closePage(const QModelIndex &index);
diff --git a/src/assistant/assistant/openpageswidget.h b/src/assistant/assistant/openpageswidget.h
index 535da4791..ed3900b3a 100644
--- a/src/assistant/assistant/openpageswidget.h
+++ b/src/assistant/assistant/openpageswidget.h
@@ -42,7 +42,7 @@ class OpenPagesDelegate : public QStyledItemDelegate
 public:
     explicit OpenPagesDelegate(QObject *parent = 0);
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
-        const QModelIndex &index) const;
+        const QModelIndex &index) const override;
 
     mutable QModelIndex pressedIndex;
 };
@@ -68,7 +68,7 @@ private slots:
     void handleClicked(const QModelIndex &index);
 
 private:
-    bool eventFilter(QObject *obj, QEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event) override;
 
     bool m_allowContextMenu;
     OpenPagesDelegate *m_delegate;
diff --git a/src/assistant/assistant/qtdocinstaller.h b/src/assistant/assistant/qtdocinstaller.h
index 7aa0918a4..bbbf98f60 100644
--- a/src/assistant/assistant/qtdocinstaller.h
+++ b/src/assistant/assistant/qtdocinstaller.h
@@ -56,7 +56,7 @@ signals:
     void docsInstalled(bool newDocsInstalled);
 
 private:
-    void run();
+    void run() override;
     bool installDoc(const DocInfo &docInfo);
 
     bool m_abort;
diff --git a/src/assistant/assistant/searchwidget.h b/src/assistant/assistant/searchwidget.h
index f2529a703..a0c179ddb 100644
--- a/src/assistant/assistant/searchwidget.h
+++ b/src/assistant/assistant/searchwidget.h
@@ -62,9 +62,9 @@ private slots:
     void searchingFinished(int hits);
 
 private:
-    bool eventFilter(QObject* o, QEvent *e);
-    void keyPressEvent(QKeyEvent *keyEvent);
-    void contextMenuEvent(QContextMenuEvent *contextMenuEvent);
+    bool eventFilter(QObject* o, QEvent *e) override;
+    void keyPressEvent(QKeyEvent *keyEvent) override;
+    void contextMenuEvent(QContextMenuEvent *contextMenuEvent) override;
 
 private:
     int zoomCount;
diff --git a/src/assistant/assistant/topicchooser.h b/src/assistant/assistant/topicchooser.h
index 52cfcca98..4817ea010 100644
--- a/src/assistant/assistant/topicchooser.h
+++ b/src/assistant/assistant/topicchooser.h
@@ -53,7 +53,7 @@ private slots:
     void activated(const QModelIndex &index);
 
 private:
-    bool eventFilter(QObject *object, QEvent *event);
+    bool eventFilter(QObject *object, QEvent *event) override;
 
 private:
     Ui::TopicChooser ui;
diff --git a/src/assistant/help/qhelpcontentwidget.cpp b/src/assistant/help/qhelpcontentwidget.cpp
index 2f6e68d60..b9ec65cbb 100644
--- a/src/assistant/help/qhelpcontentwidget.cpp
+++ b/src/assistant/help/qhelpcontentwidget.cpp
@@ -83,7 +83,7 @@ signals:
     void finishedSuccessFully();
 
 private:
-    void run();
+    void run() override;
 
     QHelpEnginePrivate *m_helpEngine;
     QStringList m_filterAttributes;
diff --git a/src/assistant/help/qhelpcontentwidget.h b/src/assistant/help/qhelpcontentwidget.h
index 06a34fe98..a4b0ce273 100644
--- a/src/assistant/help/qhelpcontentwidget.h
+++ b/src/assistant/help/qhelpcontentwidget.h
@@ -88,12 +88,12 @@ public:
     void createContents(const QString &customFilterName);
     QHelpContentItem *contentItemAt(const QModelIndex &index) const;
 
-    QVariant data(const QModelIndex &index, int role) const;
+    QVariant data(const QModelIndex &index, int role) const override;
     QModelIndex index(int row, int column,
-        const QModelIndex &parent = QModelIndex()) const;
-    QModelIndex parent(const QModelIndex &index) const;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+        const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
     bool isCreatingContents() const;
 
 Q_SIGNALS:
diff --git a/src/assistant/help/qhelpengine_p.h b/src/assistant/help/qhelpengine_p.h
index 91a693f8c..a38cc1b7a 100644
--- a/src/assistant/help/qhelpengine_p.h
+++ b/src/assistant/help/qhelpengine_p.h
@@ -111,7 +111,7 @@ public:
     ~QHelpEnginePrivate();
 
     void init(const QString &collectionFile,
-        QHelpEngineCore *helpEngineCore);
+        QHelpEngineCore *helpEngineCore) override;
 
     QHelpContentModel *contentModel;
     QHelpContentWidget *contentWidget;
diff --git a/src/assistant/help/qhelpindexwidget.cpp b/src/assistant/help/qhelpindexwidget.cpp
index 91221d92c..a0a61c7ab 100644
--- a/src/assistant/help/qhelpindexwidget.cpp
+++ b/src/assistant/help/qhelpindexwidget.cpp
@@ -63,7 +63,7 @@ public:
     QSet<int> indexIds(QHelpDBReader *reader) const;
 
 private:
-    void run();
+    void run() override;
 
     QHelpEnginePrivate *m_helpEngine;
     QStringList m_indices;
diff --git a/src/assistant/help/qhelpprojectdata_p.h b/src/assistant/help/qhelpprojectdata_p.h
index 104505fe8..1e4af4287 100644
--- a/src/assistant/help/qhelpprojectdata_p.h
+++ b/src/assistant/help/qhelpprojectdata_p.h
@@ -67,12 +67,12 @@ public:
     bool readData(const QString &fileName);
     QString errorMessage() const;
 
-    QString namespaceName() const;
-    QString virtualFolder() const;
-    QList<QHelpDataCustomFilter> customFilters() const;
-    QList<QHelpDataFilterSection> filterSections() const;
-    QMap<QString, QVariant> metaData() const;
-    QString rootPath() const;
+    QString namespaceName() const override;
+    QString virtualFolder() const override;
+    QList<QHelpDataCustomFilter> customFilters() const override;
+    QList<QHelpDataFilterSection> filterSections() const override;
+    QMap<QString, QVariant> metaData() const override;
+    QString rootPath() const override;
 
 private:
     QHelpProjectDataPrivate *d;
diff --git a/src/assistant/help/qhelpsearchindexreader_clucene_p.h b/src/assistant/help/qhelpsearchindexreader_clucene_p.h
index ecae85ab6..a9890f0f0 100644
--- a/src/assistant/help/qhelpsearchindexreader_clucene_p.h
+++ b/src/assistant/help/qhelpsearchindexreader_clucene_p.h
@@ -73,7 +73,7 @@ public:
     ~QHelpSearchIndexReaderClucene();
 
 private:
-    void run();
+    void run() override;
     void boostSearchHits(const QHelpEngineCore &engine, QList<QHelpSearchEngine::SearchHit> &hitList,
         const QList<QHelpSearchQuery> &queryList);
     bool buildQuery(const QList<QHelpSearchQuery> &queries,
diff --git a/src/assistant/help/qhelpsearchindexreader_default_p.h b/src/assistant/help/qhelpsearchindexreader_default_p.h
index c4f391d61..956b654f4 100644
--- a/src/assistant/help/qhelpsearchindexreader_default_p.h
+++ b/src/assistant/help/qhelpsearchindexreader_default_p.h
@@ -115,7 +115,7 @@ public:
     ~QHelpSearchIndexReaderDefault();
 
 private:
-    void run();
+    void run() override;
 
 private:
     Reader m_reader;
diff --git a/src/assistant/help/qhelpsearchindexreader_p.h b/src/assistant/help/qhelpsearchindexreader_p.h
index 30e0a6f90..a94085aaf 100644
--- a/src/assistant/help/qhelpsearchindexreader_p.h
+++ b/src/assistant/help/qhelpsearchindexreader_p.h
@@ -94,7 +94,7 @@ protected:
     QString m_indexFilesFolder;
 
 private:
-    virtual void run()=0;
+    void run() override = 0;
 };
 
 }   // namespace fulltextsearch
diff --git a/src/assistant/help/qhelpsearchindexwriter_clucene_p.h b/src/assistant/help/qhelpsearchindexwriter_clucene_p.h
index 7fab71085..668272c7e 100644
--- a/src/assistant/help/qhelpsearchindexwriter_clucene_p.h
+++ b/src/assistant/help/qhelpsearchindexwriter_clucene_p.h
@@ -88,7 +88,7 @@ signals:
     void indexingFinished();
 
 private:
-    void run();
+    void run() override;
 
     bool addDocuments(const QList<QUrl> docFiles, const QHelpEngineCore &engine,
         const QStringList &attributes, const QString &namespaceName,
diff --git a/src/assistant/help/qhelpsearchindexwriter_default_p.h b/src/assistant/help/qhelpsearchindexwriter_default_p.h
index ec237709e..25cfa601a 100644
--- a/src/assistant/help/qhelpsearchindexwriter_default_p.h
+++ b/src/assistant/help/qhelpsearchindexwriter_default_p.h
@@ -106,7 +106,7 @@ signals:
     void indexingFinished();
 
 private:
-    void run();
+    void run() override;
     QString addNamespace(const QString namespaces, const QString &namespaceName);
     QString removeNamespace(const QString namespaces, const QString &namespaceName);
 
diff --git a/src/assistant/help/qhelpsearchquerywidget.cpp b/src/assistant/help/qhelpsearchquerywidget.cpp
index fda435b45..98fc1af00 100644
--- a/src/assistant/help/qhelpsearchquerywidget.cpp
+++ b/src/assistant/help/qhelpsearchquerywidget.cpp
@@ -71,12 +71,12 @@ private:
         explicit CompleterModel(QObject *parent)
           : QAbstractListModel(parent) {}
 
-        int rowCount(const QModelIndex &parent = QModelIndex()) const
+        int rowCount(const QModelIndex &parent = QModelIndex()) const override
         {
             return parent.isValid() ? 0 : termList.size();
         }
 
-        QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const
+        QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override
         {
             if (!index.isValid() || index.row() >= termList.count()||
                 (role != Qt::EditRole && role != Qt::DisplayRole))
@@ -286,7 +286,7 @@ private:
     }
 
 private slots:
-    bool eventFilter(QObject *ob, QEvent *event)
+    bool eventFilter(QObject *ob, QEvent *event) override
     {
         if (event->type() == QEvent::KeyPress) {
             QKeyEvent *const keyEvent = static_cast<QKeyEvent *>(event);
diff --git a/src/assistant/help/qhelpsearchquerywidget.h b/src/assistant/help/qhelpsearchquerywidget.h
index 1441a321c..5216bb44a 100644
--- a/src/assistant/help/qhelpsearchquerywidget.h
+++ b/src/assistant/help/qhelpsearchquerywidget.h
@@ -76,8 +76,8 @@ Q_SIGNALS:
     void search();
 
 private:
-    virtual void focusInEvent(QFocusEvent *focusEvent);
-    virtual void changeEvent(QEvent *event);
+    void focusInEvent(QFocusEvent *focusEvent) override;
+    void changeEvent(QEvent *event) override;
 
 private:
     QHelpSearchQueryWidgetPrivate *d;
diff --git a/src/assistant/help/qhelpsearchresultwidget.cpp b/src/assistant/help/qhelpsearchresultwidget.cpp
index 2d78e1d82..49d3beebf 100644
--- a/src/assistant/help/qhelpsearchresultwidget.cpp
+++ b/src/assistant/help/qhelpsearchresultwidget.cpp
@@ -142,7 +142,7 @@ signals:
     void requestShowLink(const QUrl &url);
 
 private slots:
-    void setSource(const QUrl & /* name */) {}
+    void setSource(const QUrl & /* name */) override {}
 };
 
 
diff --git a/src/assistant/help/qhelpsearchresultwidget.h b/src/assistant/help/qhelpsearchresultwidget.h
index ace38c95b..502fe56ad 100644
--- a/src/assistant/help/qhelpsearchresultwidget.h
+++ b/src/assistant/help/qhelpsearchresultwidget.h
@@ -70,7 +70,7 @@ private:
 
     QHelpSearchResultWidgetPrivate *d;
     QHelpSearchResultWidget(QHelpSearchEngine *engine);
-    virtual void changeEvent(QEvent *event);
+    void changeEvent(QEvent *event) override;
 };
 
 QT_END_NAMESPACE
diff --git a/src/assistant/qhelpconverter/conversionwizard.h b/src/assistant/qhelpconverter/conversionwizard.h
index 401212f55..9c86f3e04 100644
--- a/src/assistant/qhelpconverter/conversionwizard.h
+++ b/src/assistant/qhelpconverter/conversionwizard.h
@@ -61,9 +61,9 @@ private:
     enum Pages {Input_Page, General_Page, Filter_Page,
         Identifier_Page, Path_Page, Files_Page, Output_Page,
         Finish_Page};
-    void initializePage(int id);
+    void initializePage(int id) override;
     QStringList getUnreferencedFiles(const QStringList &files);
-    bool eventFilter(QObject *obj, QEvent *e);
+    bool eventFilter(QObject *obj, QEvent *e) override;
 
     AdpReader m_adpReader;
     InputPage *m_inputPage;
diff --git a/src/assistant/qhelpconverter/filespage.h b/src/assistant/qhelpconverter/filespage.h
index 2da2657ec..3e0d6af3e 100644
--- a/src/assistant/qhelpconverter/filespage.h
+++ b/src/assistant/qhelpconverter/filespage.h
@@ -48,7 +48,7 @@ private slots:
     void removeAllFiles();
 
 private:
-    bool eventFilter(QObject *obj, QEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event) override;
 
     Ui::FilesPage m_ui;
     QStringList m_files;
diff --git a/src/assistant/qhelpconverter/filterpage.h b/src/assistant/qhelpconverter/filterpage.h
index 757851bea..f6bf7797d 100644
--- a/src/assistant/qhelpconverter/filterpage.h
+++ b/src/assistant/qhelpconverter/filterpage.h
@@ -54,7 +54,7 @@ private slots:
     void removeFilter();
 
 private:
-    bool validatePage();
+    bool validatePage() override;
 
     Ui::FilterPage m_ui;
     QStringList m_filterAttributes;
diff --git a/src/assistant/qhelpconverter/generalpage.h b/src/assistant/qhelpconverter/generalpage.h
index 5c547cfd7..b52cdffb7 100644
--- a/src/assistant/qhelpconverter/generalpage.h
+++ b/src/assistant/qhelpconverter/generalpage.h
@@ -42,8 +42,8 @@ public:
     GeneralPage(QWidget *parent = 0);
 
 private:
-    bool validatePage();
-    bool isComplete() const;
+    bool validatePage() override;
+    bool isComplete() const override;
 
     Ui::GeneralPage m_ui;
 };
diff --git a/src/assistant/qhelpconverter/inputpage.h b/src/assistant/qhelpconverter/inputpage.h
index 2f5b5b145..a52be283a 100644
--- a/src/assistant/qhelpconverter/inputpage.h
+++ b/src/assistant/qhelpconverter/inputpage.h
@@ -47,7 +47,7 @@ private slots:
     void getFileName();
 
 private:
-    bool validatePage();
+    bool validatePage() override;
 
     Ui::InputPage m_ui;
     AdpReader *m_adpReader;
diff --git a/src/assistant/qhelpconverter/outputpage.h b/src/assistant/qhelpconverter/outputpage.h
index d11bd4b5d..ac7ae9683 100644
--- a/src/assistant/qhelpconverter/outputpage.h
+++ b/src/assistant/qhelpconverter/outputpage.h
@@ -44,8 +44,8 @@ public:
     void setCollectionComponentEnabled(bool enabled);
 
 private:
-    bool isComplete() const;
-    bool validatePage();
+    bool isComplete() const override;
+    bool validatePage() override;
     bool checkFile(const QString &fileName,
         const QString &title);