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

**

** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

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

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

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

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** 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

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

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

#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