WPXStream.h

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/* libwpd
 * Copyright (C) 2004-2005 William Lachance (wrlach@gmail.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 *
 * For further information visit http://libwpd.sourceforge.net
 */

/* "This product is not manufactured, approved, or supported by
 * Corel Corporation or Corel Corporation Limited."
 */

#ifndef WPXSTREAM_H
#define WPXSTREAM_H
#include <stdio.h>
#include "libwpd_types.h"

enum WPX_SEEK_TYPE
{
        WPX_SEEK_CUR,
        WPX_SEEK_SET
};

class WPXInputStream
{
public:
        WPXInputStream(bool supportsOLE) :
                m_supportsOLE(supportsOLE) {}
        virtual ~WPXInputStream() {}

        virtual bool isOLEStream() = 0;
        virtual WPXInputStream * getDocumentOLEStream() = 0;

        const virtual uint8_t *read(size_t numBytes, size_t &numBytesRead) = 0;
        virtual int seek(long offset, WPX_SEEK_TYPE seekType) = 0;
        virtual long tell() = 0;
        virtual bool atEOS() = 0;

private:
        bool m_supportsOLE;
};
#endif

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