RVNGDirectoryStream.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* librevenge
 * Version: MPL 2.0 / LGPLv2.1+
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Major Contributor(s):
 * Copyright (C) 2002-2005 William Lachance (wrlach@gmail.com)
 * Copyright (C) 2002 Marc Maurer (uwog@uwog.net)
 * Copyright (C) 2006 Fridrich Strba (fridrich.strba@bluewin.ch)
 *
 * For minor contributions see the git repository.
 *
 * Alternatively, the contents of this file may be used under the terms
 * of the GNU Lesser General Public License Version 2.1 or later
 * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
 * applicable instead of those above.
 */
 
#ifndef RVNGDIRECTORYSTREAM_H_INCLUDED
#define RVNGDIRECTORYSTREAM_H_INCLUDED
 
#include "librevenge-stream-api.h"
 
#include "RVNGStream.h"
 
namespace librevenge
{
 
struct RVNGDirectoryStreamImpl;

class REVENGE_STREAM_API RVNGDirectoryStream : public RVNGInputStream
{
        // disable copying
        RVNGDirectoryStream(const RVNGDirectoryStream &);
        RVNGDirectoryStream &operator=(const RVNGDirectoryStream &);
 
public:
        explicit RVNGDirectoryStream(const char *path);
 
        virtual ~RVNGDirectoryStream();

        static RVNGDirectoryStream *createForParent(const char *path);

        static bool isDirectory(const char *path);
 
        virtual bool isStructured();
        virtual unsigned subStreamCount();
        virtual const char *subStreamName(unsigned id);
        virtual bool existsSubStream(const char *name);
        virtual RVNGInputStream *getSubStreamByName(const char *name);
        virtual RVNGInputStream *getSubStreamById(unsigned id);
 
        virtual const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
        virtual int seek(long offset, RVNG_SEEK_TYPE seekType);
        virtual long tell();
        virtual bool isEnd();
 
private:
        RVNGDirectoryStreamImpl *m_impl;
};
 
}
 
#endif //  RVNGDIRECTORYSTREAM_H_INCLUDED
 
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