/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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** This file is part of the QtGui module of the Qt Toolkit.
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** 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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****************************************************************************/

#ifndef QIMAGE_P_H
#define QIMAGE_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 <QtCore/qglobal.h>

#include <QVector>

#ifndef QT_NO_IMAGE_TEXT
#include <QMap>
#endif

QT_BEGIN_NAMESPACE

struct Q_GUI_EXPORT QImageData {        // internal image data
    QImageData();
    ~QImageData();
    static QImageData *create(const QSize &size, QImage::Format format, int numColors = 0);
    static QImageData *create(uchar *data, int w, int h,  int bpl, QImage::Format format, bool readOnly);

    QAtomicInt ref;

    int width;
    int height;
    int depth;
    int nbytes;               // number of bytes data
    QVector<QRgb> colortable;
    uchar *data;
#ifdef QT3_SUPPORT
    uchar **jumptable;
#endif
    QImage::Format format;
    int bytes_per_line;
    int ser_no;               // serial number
    int detach_no;

    qreal  dpmx;                // dots per meter X (or 0)
    qreal  dpmy;                // dots per meter Y (or 0)
    QPoint  offset;           // offset in pixels

    uint own_data : 1;
    uint ro_data : 1;
    uint has_alpha_clut : 1;
    uint is_cached : 1;

    bool checkForAlphaPixels() const;

    // Convert the image in-place, minimizing memory reallocation
    // Return false if the conversion cannot be done in-place.
    bool convertInPlace(QImage::Format newFormat, Qt::ImageConversionFlags);

#ifndef QT_NO_IMAGE_TEXT
    QMap<QString, QString> text;
#endif
    bool doImageIO(const QImage *image, QImageWriter* io, int quality) const;

    QPaintEngine *paintEngine;
};

QT_END_NAMESPACE

#endif
