qmainwindow

// QMainWindow : public QWidget


public:
    enum DockOption {
        AnimatedDocks = 0x01,
        AllowNestedDocks = 0x02,
        AllowTabbedDocks = 0x04,
        ForceTabbedDocks = 0x08,  // implies AllowTabbedDocks, !AllowNestedDocks
        VerticalTabs = 0x10       // implies AllowTabbedDocks
    };
    Q_DECLARE_FLAGS(DockOptions, DockOption)

    explicit QMainWindow(QWidget *parent = 0, Qt::WindowFlags flags = 0);
    ~QMainWindow();

    QSize iconSize() const;
    void setIconSize(const QSize &iconSize);

    Qt::ToolButtonStyle toolButtonStyle() const;
    void setToolButtonStyle(Qt::ToolButtonStyle toolButtonStyle);

#ifndef QT_NO_DOCKWIDGET
    bool isAnimated() const;
    bool isDockNestingEnabled() const;
#endif

#ifndef QT_NO_TABBAR
    bool documentMode() const;
    void setDocumentMode(bool enabled);
#endif

#ifndef QT_NO_TABWIDGET
    QTabWidget::TabShape tabShape() const;
    void setTabShape(QTabWidget::TabShape tabShape);
    QTabWidget::TabPosition tabPosition(Qt::DockWidgetArea area) const;
    void setTabPosition(Qt::DockWidgetAreas areas, QTabWidget::TabPosition tabPosition);
#endif // QT_NO_TABWIDGET

    void setDockOptions(DockOptions options);
    DockOptions dockOptions() const;

    bool isSeparator(const QPoint &pos) const;

#ifndef QT_NO_MENUBAR
    QMenuBar *menuBar() const;
    void setMenuBar(QMenuBar *menubar);

    QWidget  *menuWidget() const;
    void setMenuWidget(QWidget *menubar);
#endif

#ifndef QT_NO_STATUSBAR
    QStatusBar *statusBar() const;
    void setStatusBar(QStatusBar *statusbar);
#endif

    QWidget *centralWidget() const;
    void setCentralWidget(QWidget *widget);

#ifndef QT_NO_DOCKWIDGET
    void setCorner(Qt::Corner corner, Qt::DockWidgetArea area);
    Qt::DockWidgetArea corner(Qt::Corner corner) const;
#endif

#ifndef QT_NO_TOOLBAR
    void addToolBarBreak(Qt::ToolBarArea area = Qt::TopToolBarArea);
    void insertToolBarBreak(QToolBar *before);

    void addToolBar(Qt::ToolBarArea area, QToolBar *toolbar);
    void addToolBar(QToolBar *toolbar);
    QToolBar *addToolBar(const QString &title);
    void insertToolBar(QToolBar *before, QToolBar *toolbar);
    void removeToolBar(QToolBar *toolbar);
    void removeToolBarBreak(QToolBar *before);

    void setUnifiedTitleAndToolBarOnMac(bool set);
    bool unifiedTitleAndToolBarOnMac() const;

    Qt::ToolBarArea toolBarArea(QToolBar *toolbar) const;
    bool toolBarBreak(QToolBar *toolbar) const;
#endif
#ifndef QT_NO_DOCKWIDGET
    void addDockWidget(Qt::DockWidgetArea area, QDockWidget *dockwidget);
    void addDockWidget(Qt::DockWidgetArea area, QDockWidget *dockwidget,
                       Qt::Orientation orientation);
    void splitDockWidget(QDockWidget *after, QDockWidget *dockwidget,
                         Qt::Orientation orientation);
    void tabifyDockWidget(QDockWidget *first, QDockWidget *second);
    QList<QDockWidget*> tabifiedDockWidgets(QDockWidget *dockwidget) const;
    void removeDockWidget(QDockWidget *dockwidget);
    bool restoreDockWidget(QDockWidget *dockwidget);

    Qt::DockWidgetArea dockWidgetArea(QDockWidget *dockwidget) const;
#endif // QT_NO_DOCKWIDGET

    QByteArray saveState(int version = 0) const;
    bool restoreState(const QByteArray &state, int version = 0);

#ifndef QT_NO_MENU
    virtual QMenu *createPopupMenu();
#endif

#ifdef QT3_SUPPORT
    QT3_SUPPORT_CONSTRUCTOR QMainWindow(QWidget *parent, const char *name, Qt::WindowFlags flags = 0);
#endif

#ifndef QT_NO_DOCKWIDGET
public Q_SLOTS:
    void setAnimated(bool enabled);
    void setDockNestingEnabled(bool enabled);
#endif

Q_SIGNALS:
    void iconSizeChanged(const QSize &iconSize);
    void toolButtonStyleChanged(Qt::ToolButtonStyle toolButtonStyle);