qmenubar.h Include File

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# qmenubar.h

This is the verbatim text of the qmenubar.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/qmenubar.h   3.1.2   edited Dec 2 02:21 $
    **
    ** Definition of QMenuBar class
    **
    ** Created : 941209
    **
    ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the widgets module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QMENUBAR_H
    #define QMENUBAR_H

    #ifndef QT_H
    #include "qpopupmenu.h" // ### remove or keep for users' convenience?
    #include "qframe.h"
    #include "qmenudata.h"
    #endif // QT_H

    #ifndef QT_NO_MENUBAR

    class QPopupMenu;

    class Q_EXPORT QMenuBar : public QFrame, public QMenuData
    {
        Q_OBJECT
        Q_ENUMS( Separator )
        Q_PROPERTY( Separator separator READ separator WRITE setSeparator DESIGNABLE false )
        Q_PROPERTY( bool defaultUp READ isDefaultUp WRITE setDefaultUp )

    public:
        QMenuBar( QWidget* parent=0, const char* name=0 );
        ~QMenuBar();

        void	updateItem( int id );

        void	show();				// reimplemented show
        void	hide();				// reimplemented hide

        bool	eventFilter( QObject *, QEvent * );

        int		heightForWidth(int) const;

        enum	Separator { Never=0, InWindowsStyle=1 };
        Separator 	separator() const;
        virtual void	setSeparator( Separator when );

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

        bool customWhatsThis() const;

        QSize sizeHint() const;
        QSize minimumSize() const;
        QSize minimumSizeHint() const;

        void activateItemAt( int index );

    #if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
        static void initialize();
        static void cleanup();
    #endif

    signals:
        void	activated( int itemId );
        void	highlighted( int itemId );

    protected:
        void	drawContents( QPainter * );
        void	fontChange( const QFont & );
        void	mousePressEvent( QMouseEvent * );
        void	mouseReleaseEvent( QMouseEvent * );
        void	mouseMoveEvent( QMouseEvent * );
        void	keyPressEvent( QKeyEvent * );
        void	focusInEvent( QFocusEvent * );
        void	focusOutEvent( QFocusEvent * );
        void	resizeEvent( QResizeEvent * );
        void	leaveEvent( QEvent * );
        void	menuContentsChanged();
        void	menuStateChanged();
        void 	styleChange( QStyle& );
        int	itemAtPos( const QPoint & );
        void	hidePopups();
        QRect	itemRect( int item );

    private slots:
        void	subActivated( int itemId );
        void	subHighlighted( int itemId );
    #ifndef QT_NO_ACCEL
        void	accelActivated( int itemId );
        void	accelDestroyed();
    #endif
        void	popupDestroyed( QObject* );
        void 	performDelayedChanges();

    private:
        void 	performDelayedContentsChanged();
        void 	performDelayedStateChanged();
        void	menuInsPopup( QPopupMenu * );
        void	menuDelPopup( QPopupMenu * );
        void	frameChanged();

        bool	tryMouseEvent( QPopupMenu *, QMouseEvent * );
        void	tryKeyEvent( QPopupMenu *, QKeyEvent * );
        void	goodbye( bool cancelled = FALSE );
        void	openActPopup();

        void setActiveItem( int index, bool show = TRUE, bool activate_first_item = TRUE );
        void setAltMode( bool );

        int		calculateRects( int max_width = -1 );

    #ifndef QT_NO_ACCEL
        void	setupAccelerators();
        QAccel     *autoaccel;
    #endif
        QRect      *irects;
        int		rightSide;

        uint	mseparator : 1;
        uint	waitforalt : 1;
        uint	popupvisible  : 1;
        uint	hasmouse : 1;
        uint 	defaultup : 1;
        uint 	toggleclose : 1;
        uint        pendingDelayedContentsChanges : 1;
        uint        pendingDelayedStateChanges : 1;

        friend class QPopupMenu;

    #if defined(Q_WS_MAC) && !defined(QMAC_QMENUBAR_NO_NATIVE)
        friend class QWidget;
        friend class QApplication;

        void macCreateNativeMenubar();
        void macRemoveNativeMenubar();
        void macDirtyNativeMenubar();

    #if !defined(QMAC_QMENUBAR_NO_EVENT)
        static void qt_mac_install_menubar_event(MenuRef);
        static OSStatus qt_mac_menubar_event(EventHandlerCallRef, EventRef, void *);
    #endif
        virtual void macWidgetChangedWindow();
        bool syncPopups(MenuRef ret, QPopupMenu *d);
        MenuRef createMacPopup(QPopupMenu *d, bool, bool =FALSE);
        bool updateMenuBar();
    #if !defined(QMAC_QMENUBAR_NO_MERGE)
        uint isCommand(QMenuItem *, bool just_check=FALSE);
    #endif

        uint mac_eaten_menubar : 1;
        class MacPrivate;
        MacPrivate *mac_d;
        static bool activate(MenuRef, short, bool highlight=FALSE, bool by_accel=FALSE);
        static bool activateCommand(uint cmd);
        static bool macUpdateMenuBar();
        static bool macUpdatePopupVisible(MenuRef, bool);
        static bool macUpdatePopup(MenuRef);
    #endif

    private:	// Disabled copy constructor and operator=

    #if defined(Q_DISABLE_COPY)
        QMenuBar( const QMenuBar & );
        QMenuBar &operator=( const QMenuBar & );
    #endif
    };

    #endif // QT_NO_MENUBAR

    #endif // QMENUBAR_H