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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#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 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;


#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