/****************************************************************************
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
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** 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
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#ifndef QVOLATILEIMAGEDATA_P_H
#define QVOLATILEIMAGEDATA_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtGui/qimage.h>
#include <QtCore/qshareddata.h>

#ifdef Q_OS_SYMBIAN
class CFbsBitmap;
#endif

QT_BEGIN_NAMESPACE

class QVolatileImageData : public QSharedData
{
public:
    QVolatileImageData();
    QVolatileImageData(int w, int h, QImage::Format format);
    QVolatileImageData(const QImage &sourceImage);
    QVolatileImageData(void *nativeImage, void *nativeMask);
    QVolatileImageData(const QVolatileImageData &other);
    ~QVolatileImageData();

    void beginDataAccess() const;
    void endDataAccess(bool readOnly = false) const;
    bool ensureFormat(QImage::Format format);
    void *duplicateNativeImage() const;
    void ensureImage();

#ifdef Q_OS_SYMBIAN
    void updateImage();
    void initWithBitmap(CFbsBitmap *source);
    void applyMask(CFbsBitmap *mask);
    void ensureBitmap();
    void release();
    QVolatileImageData *next;
    QVolatileImageData *prev;
    CFbsBitmap *bitmap;
#endif
    QImage image;
    QPaintEngine *pengine;
};

QT_END_NAMESPACE

#endif // QVOLATILEIMAGEDATA_P_H
