/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** 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 met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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
