/****************************************************************************
**
** Copyright (C) 1992-2004 Trolltech AS. All rights reserved.
**
** This file is part of the gui module of the Qt Toolkit.
**
** 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.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** 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.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef QKEYSEQUENCE_H
#define QKEYSEQUENCE_H

#include "qnamespace.h"
#include "qstring.h"

#ifndef QT_NO_ACCEL

/*****************************************************************************
  QKeySequence stream functions
 *****************************************************************************/
#ifndef QT_NO_DATASTREAM
class QKeySequence;
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QKeySequence &ks);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &out, QKeySequence &ks);
#endif

class QKeySequencePrivate;

class Q_GUI_EXPORT QKeySequence
{
public:
    QKeySequence();
    QKeySequence(const QString &key);
    QKeySequence(int k1, int k2 = 0, int k3 = 0, int k4 = 0);
    QKeySequence(const QKeySequence &ks);
    ~QKeySequence();

    uint count() const;
    bool isEmpty() const;

    enum SequenceMatch {
        NoMatch,
        PartialMatch,
        ExactMatch
#ifdef QT_COMPAT
        , Identical = ExactMatch
#endif
    };

    SequenceMatch matches(const QKeySequence &seq) const;
    static QKeySequence mnemonic(const QString &text);

    operator QString() const;
    operator int() const;
    int operator[](uint i) const;
    QKeySequence &operator=(const QKeySequence &other);
    bool operator==(const QKeySequence &other) const;
    inline bool operator!= (const QKeySequence &other) const
    { return !(*this == other); }
    bool operator< (const QKeySequence &ks) const;
    inline bool operator> (const QKeySequence &other) const
    { return other < *this; }
    inline bool operator<= (const QKeySequence &other) const
    { return !(other < *this); }
    inline bool operator>= (const QKeySequence &other) const
    { return !(*this < other); }

    bool isDetached() const;
private:
    static int decodeString(const QString &ks);
    static QString encodeString(int key);
    int assign(const QString &str);
    void setKey(int key, int index);

    QKeySequencePrivate *d;

    friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &in, const QKeySequence &ks);
    friend Q_GUI_EXPORT QDataStream &operator>>(QDataStream &in, QKeySequence &ks);
    friend class Q3AccelManager;
    friend class QShortcutMap;
    friend class QShortcut;
};
Q_DECLARE_TYPEINFO(QKeySequence, Q_MOVABLE_TYPE);
Q_DECLARE_SHARED(QKeySequence);

#ifndef QT_NO_DEBUG_OUTPUT
Q_GUI_EXPORT QDebug operator<<(QDebug, const QKeySequence &);
#endif

#else

class Q_GUI_EXPORT QKeySequence
{
public:
    QKeySequence() {}
    QKeySequence(int) {}
};

#endif //QT_NO_ACCEL

#endif
