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/****************************************************************************
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**
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** Copyright (C) 2011 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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** $QT_BEGIN_LICENSE:LGPL$
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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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**
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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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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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** $QT_END_LICENSE$
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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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//  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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#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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ec9606b by hjk at 2009-05-19 61
QT_BEGIN_NAMESPACE
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uint qHash(const QPixmapCache::Key &k);
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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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    bool isValid;
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    int key;
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    int ref;
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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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QT_END_NAMESPACE
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#endif // QPIXMAPCACHE_P_H