/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the QtGui module of the Qt Toolkit.

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** GNU Lesser General Public License Usage

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** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

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****************************************************************************/

#ifndef QPIXMAPCACHE_H

#define QPIXMAPCACHE_H

#include <QtGui/qpixmap.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class Q_GUI_EXPORT QPixmapCache

{

public:

    class KeyData;

    class Q_GUI_EXPORT Key

    {

    public:

        Key();

        Key(const Key &other);

        ~Key();

        bool operator ==(const Key &key) const;

        inline bool operator !=(const Key &key) const

        { return !operator==(key); }

        Key &operator =(const Key &other);

    private:

        KeyData *d;

        friend class QPMCache;

        friend class QPixmapCache;

    };

    static int cacheLimit();

    static void setCacheLimit(int);

    static QPixmap *find(const QString &key);

    static bool find(const QString &key, QPixmap &pixmap);

    static bool find(const QString &key, QPixmap *pixmap);

    static bool find(const Key &key, QPixmap *pixmap);

    static bool insert(const QString &key, const QPixmap &pixmap);

    static Key insert(const QPixmap &pixmap);

    static bool replace(const Key &key, const QPixmap &pixmap);

    static void remove(const QString &key);

    static void remove(const Key &key);

    static void clear();

};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QPIXMAPCACHE_H