/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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** If you have questions regarding the use of this file, please contact+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QPIXMAPCACHE_P_H+
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#define QPIXMAPCACHE_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API. This header+
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// file may change from version to version without notice, or even be removed.+
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//+
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// We mean it.+
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//+
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+
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#include "qpixmapcache.h"+
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#include "qpaintengine.h"+
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#include <private/qimage_p.h>+
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#include <private/qpixmap_raster_p.h>+
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#include "qcache.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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uint qHash(const QPixmapCache::Key &k);+
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+
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class QPixmapCache::KeyData+
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{+
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public:+
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    KeyData() : isValid(true), key(0), ref(1) {}+
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    KeyData(const KeyData &other)+
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     : isValid(other.isValid), key(other.key), ref(1) {}+
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    ~KeyData() {}+
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+
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    bool isValid;+
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    int key;+
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    int ref;+
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};+
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+
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// XXX: hw: is this a general concept we need to abstract?+
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class QPixmapCacheEntry : public QPixmap+
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{+
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public:+
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    QPixmapCacheEntry(const QPixmapCache::Key &key, const QPixmap &pix) : QPixmap(pix), key(key)+
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    {+
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        if (data && data->classId() == QPixmapData::RasterClass) {+
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            QRasterPixmapData *d = static_cast<QRasterPixmapData*>(data.data());+
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            if (!d->image.isNull() && d->image.d->paintEngine+
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                && !d->image.d->paintEngine->isActive())+
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            {+
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                delete d->image.d->paintEngine;+
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                d->image.d->paintEngine = 0;+
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            }+
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        }+
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    }+
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    ~QPixmapCacheEntry();+
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    QPixmapCache::Key key;+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QPIXMAPCACHE_P_H+
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