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# metainfo.h Example File
network/torrent/metainfo.h

        /****************************************************************************
        **
        ** Copyright (C) 2004-2006 Trolltech ASA. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be used under the terms of the GNU General Public
        ** License version 2.0 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 GNU
        ** General Public Licensing requirements will be met:
        ** http://www.trolltech.com/products/qt/opensource.html
        **
        ** If you are unsure which license is appropriate for your use, please
        ** review the following information:
        ** http://www.trolltech.com/products/qt/licensing.html or contact the
        ** sales department at sales@trolltech.com.
        **
        ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        **
        ****************************************************************************/

        #ifndef METAINFO_H
        #define METAINFO_H

        #include <QByteArray>
        #include <QDateTime>
        #include <QList>
        #include <QMap>
        #include <QString>
        #include <QStringList>
        #include <QVariant>

        struct MetaInfoSingleFile
        {
            qint64 length;
            QByteArray md5sum;
            QString name;
            int pieceLength;
            QList<QByteArray> sha1Sums;
        };

        struct MetaInfoMultiFile
        {
            qint64 length;
            QByteArray md5sum;
            QString path;
        };

        class MetaInfo
        {
        public:
            enum FileForm {
                SingleFileForm,
                MultiFileForm
            };

            MetaInfo();
            void clear();

            bool parse(const QByteArray &data);
            QString errorString() const;

            QByteArray infoValue() const;

            FileForm fileForm() const;
            QString announceUrl() const;
            QStringList announceList() const;
            QDateTime creationDate() const;
            QString comment() const;
            QString createdBy() const;

            // For single file form
            MetaInfoSingleFile singleFile() const;

            // For multifile form
            QList<MetaInfoMultiFile> multiFiles() const;
            QString name() const;
            int pieceLength() const;
            QList<QByteArray> sha1Sums() const;

            // Total size
            qint64 totalSize() const;

        private:
            QString errString;
            QByteArray content;
            QByteArray infoData;

            FileForm metaInfoFileForm;
            MetaInfoSingleFile metaInfoSingleFile;
            QList<MetaInfoMultiFile> metaInfoMultiFiles;
            QString metaInfoAnnounce;
            QStringList metaInfoAnnounceList;
            QDateTime metaInfoCreationDate;
            QString metaInfoComment;
            QString metaInfoCreatedBy;
            QString metaInfoName;
            int metaInfoPieceLength;
            QList<QByteArray> metaInfoSha1Sums;
        };

        #endif