WPXMemoryStream.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* libwpd
 * 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.
 *
 * For further information visit http://libwpd.sourceforge.net
 */
 
/* "This product is not manufactured, approved, or supported by
 * Corel Corporation or Corel Corporation Limited."
 */
 
#ifndef MEMORYSTREAM_H
#define MEMORYSTREAM_H
#include <librevenge-stream/librevenge-stream.h>
 
class WPXMemoryInputStream : public librevenge::RVNGInputStream
{
public:
        WPXMemoryInputStream(unsigned char *data, unsigned long size);
        ~WPXMemoryInputStream() override;
        bool isStructured() override
        {
                return false;
        }
        unsigned subStreamCount() override
        {
                return 0;
        }
        const char *subStreamName(unsigned) override
        {
                return nullptr;
        }
        bool existsSubStream(const char *) override
        {
                return false;
        }
        librevenge::RVNGInputStream *getSubStreamByName(const char *) override
        {
                return nullptr;
        }
        librevenge::RVNGInputStream *getSubStreamById(unsigned) override
        {
                return nullptr;
        }
        const unsigned char *read(unsigned long numBytes, unsigned long &numBytesRead) override;
        int seek(long offset, librevenge::RVNG_SEEK_TYPE seekType) override;
        long tell() override;
        bool isEnd() override;
        unsigned long getSize() const
        {
                return m_size;
        }
 
private:
        long m_offset;
        unsigned long m_size;
        unsigned char *m_data;
        WPXMemoryInputStream(const WPXMemoryInputStream &);
        WPXMemoryInputStream &operator=(const WPXMemoryInputStream &);
};
 
#endif
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