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qmenubar_p.h

/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
** your option) use any later version of the GNU General Public
** License if such license has been publicly approved by Trolltech ASA
** (or its successors, if any) and the KDE Free Qt Foundation. In
** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.1, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
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****************************************************************************/

#ifndef QMENUBAR_P_H
#define QMENUBAR_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#ifndef QMAC_Q3MENUBAR_CPP_FILE
#include "QtGui/qstyleoption.h"

#ifndef QT_NO_MENUBAR
class QMenuBarExtension;
class QMenuBarPrivate : public QWidgetPrivate
{
    Q_DECLARE_PUBLIC(QMenuBar)
public:
    QMenuBarPrivate() : itemsDirty(0), itemsWidth(0), itemsStart(-1), currentAction(0), mouseDown(0),
                         closePopupMode(0), defaultPopDown(1), popupState(0), keyboardState(0), altPressed(0)
#ifdef Q_WS_MAC
                         , mac_menubar(0)
#endif
    { }
    ~QMenuBarPrivate()
        {
#ifdef Q_WS_MAC
            delete mac_menubar;
#endif
        }

    void init();
    QStyleOptionMenuItem getStyleOption(const QAction *action) const;

    //item calculations
    uint itemsDirty : 1;
    int itemsWidth, itemsStart;

    QVector<int> shortcutIndexMap;
    mutable QMap<QAction*, QRect> actionRects;
    mutable QList<QAction*> actionList;
    void calcActionRects(int max_width, int start, QMap<QAction*, QRect> &actionRects, QList<QAction*> &actionList) const;
    QRect actionRect(QAction *) const;
    void updateGeometries();

    //selection
    QPointer<QAction>currentAction;
    uint mouseDown : 1, closePopupMode : 1, defaultPopDown;
    QAction *actionAt(QPoint p) const;
    bool closeActiveMenu();
    void setCurrentAction(QAction *, bool =false, bool =false);
    void popupAction(QAction *, bool);

    //active popup state
    uint popupState : 1;
    QPointer<QMenu> activeMenu;

    //keyboard mode for keyboard navigation
    void setKeyboardMode(bool);
    uint keyboardState : 1, altPressed : 1;
    QPointer<QWidget> keyboardFocusWidget;

    //firing of events
    void activateAction(QAction *, QAction::ActionEvent);

    void _q_actionTriggered();
    void _q_actionHovered();
    void _q_internalShortcutActivated(int);
    void _q_updateLayout();

    //extra widgets in the menubar
    QPointer<QWidget> leftWidget, rightWidget;
    QMenuBarExtension *extension;
    bool isVisible(QAction *action);

    //menu fading/scrolling effects
    bool doChildEffects;

    QRect menuRect(bool) const;

    // reparenting
    void handleReparent();
    QWidget *oldParent;
    QWidget *oldWindow;

    QList<QAction*> hiddenActions;
#ifdef QT3_SUPPORT
    bool doAutoResize;
#endif
#ifdef Q_WS_MAC
    //mac menubar binding
    struct QMacMenuBarPrivate {
        QList<QMacMenuAction*> actionItems;
        MenuRef menu, apple_menu;
        QMacMenuBarPrivate();
        ~QMacMenuBarPrivate();

        void addAction(QAction *, QMacMenuAction* =0);
        void addAction(QMacMenuAction *, QMacMenuAction* =0);
        void syncAction(QMacMenuAction *);
        inline void syncAction(QAction *a) { syncAction(findAction(a)); }
        void removeAction(QMacMenuAction *);
        inline void removeAction(QAction *a) { removeAction(findAction(a)); }
        inline QMacMenuAction *findAction(QAction *a) {
            for(int i = 0; i < actionItems.size(); i++) {
                QMacMenuAction *act = actionItems[i];
                if(a == act->action)
                    return act;
            }
            return 0;
        }
    } *mac_menubar;
    void macCreateMenuBar(QWidget *);
    void macDestroyMenuBar();
    MenuRef macMenu();
#endif
};
#endif

#endif // QT_NO_MENUBAR

#endif // QMENUBAR_P_H

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