common/include/QtWidgets/qmenubar.h

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**
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#ifndef QMENUBAR_H
#define QMENUBAR_H

#include <QtWidgets/qmenu.h>

QT_BEGIN_NAMESPACE


#ifndef QT_NO_MENUBAR

class QMenuBarPrivate;
class QStyleOptionMenuItem;
class QWindowsStyle;
class QPlatformMenuBar;

class Q_WIDGETS_EXPORT QMenuBar : public QWidget
{
    Q_OBJECT

    Q_PROPERTY(bool defaultUp READ isDefaultUp WRITE setDefaultUp)
    Q_PROPERTY(bool nativeMenuBar READ isNativeMenuBar WRITE setNativeMenuBar)

public:
    explicit QMenuBar(QWidget *parent = 0);
    ~QMenuBar();

    using QWidget::addAction;
    QAction *addAction(const QString &text);
    QAction *addAction(const QString &text, const QObject *receiver, const char* member);

    QAction *addMenu(QMenu *menu);
    QMenu *addMenu(const QString &title);
    QMenu *addMenu(const QIcon &icon, const QString &title);


    QAction *addSeparator();
    QAction *insertSeparator(QAction *before);

    QAction *insertMenu(QAction *before, QMenu *menu);

    void clear();

    QAction *activeAction() const;
    void setActiveAction(QAction *action);

    void setDefaultUp(bool);
    bool isDefaultUp() const;

    QSize sizeHint() const;
    QSize minimumSizeHint() const;
    int heightForWidth(int) const;

    QRect actionGeometry(QAction *) const;
    QAction *actionAt(const QPoint &) const;

    void setCornerWidget(QWidget *w, Qt::Corner corner = Qt::TopRightCorner);
    QWidget *cornerWidget(Qt::Corner corner = Qt::TopRightCorner) const;

#ifdef Q_OS_WINCE
    void setDefaultAction(QAction *);
    QAction *defaultAction() const;

    static void wceCommands(uint command);
    static void wceRefresh();
#endif
#ifdef Q_OS_OSX
    NSMenu* toNSMenu();
#endif

    bool isNativeMenuBar() const;
    void setNativeMenuBar(bool nativeMenuBar);
    QPlatformMenuBar *platformMenuBar();
public Q_SLOTS:
    virtual void setVisible(bool visible);

Q_SIGNALS:
    void triggered(QAction *action);
    void hovered(QAction *action);

protected:
    void changeEvent(QEvent *);
    void keyPressEvent(QKeyEvent *);
    void mouseReleaseEvent(QMouseEvent *);
    void mousePressEvent(QMouseEvent *);
    void mouseMoveEvent(QMouseEvent *);
    void leaveEvent(QEvent *);
    void paintEvent(QPaintEvent *);
    void resizeEvent(QResizeEvent *);
    void actionEvent(QActionEvent *);
    void focusOutEvent(QFocusEvent *);
    void focusInEvent(QFocusEvent *);
    void timerEvent(QTimerEvent *);
    bool eventFilter(QObject *, QEvent *);
    bool event(QEvent *);
    void initStyleOption(QStyleOptionMenuItem *option, const QAction *action) const;

private:
    Q_DECLARE_PRIVATE(QMenuBar)
    Q_DISABLE_COPY(QMenuBar)
    Q_PRIVATE_SLOT(d_func(), void _q_actionTriggered())
    Q_PRIVATE_SLOT(d_func(), void _q_actionHovered())
    Q_PRIVATE_SLOT(d_func(), void _q_internalShortcutActivated(int))
    Q_PRIVATE_SLOT(d_func(), void _q_updateLayout())

#ifdef Q_OS_WINCE
    Q_PRIVATE_SLOT(d_func(), void _q_updateDefaultAction())
#endif

    friend class QMenu;
    friend class QMenuPrivate;
    friend class QWindowsStyle;
};

#endif // QT_NO_MENUBAR

QT_END_NAMESPACE

#endif // QMENUBAR_H