RVNGMemoryStream.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) 2004-2005 William Lachance (wrlach@gmail.com)
 *
 * 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 RVNGMEMORYSTREAM_H
#define RVNGMEMORYSTREAM_H
 
#include <librevenge-stream/librevenge-stream.h>
 
namespace librevenge
{
 
class RVNGMemoryInputStream : public RVNGInputStream
{
public:
        RVNGMemoryInputStream(unsigned char *data, unsigned long size);
        ~RVNGMemoryInputStream();
        bool isStructured()
        {
                return false;
        }
        unsigned subStreamCount()
        {
                return 0;
        }
        const char *subStreamName(unsigned)
        {
                return nullptr;
        }
        bool existsSubStream(const char *)
        {
                return false;
        }
        RVNGInputStream *getSubStreamByName(const char *)
        {
                return nullptr;
        }
        RVNGInputStream *getSubStreamById(unsigned)
        {
                return nullptr;
        }
        const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead);
        int seek(long offset, RVNG_SEEK_TYPE seekType);
        long tell();
        bool isEnd();
        unsigned long getSize() const
        {
                return m_size;
        }
 
private:
        long m_offset;
        unsigned long m_size;
        unsigned char *m_data;
        RVNGMemoryInputStream(const RVNGMemoryInputStream &);
        RVNGMemoryInputStream &operator=(const RVNGMemoryInputStream &);
};
 
}
 
#endif
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