/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/*

 * This file is part of the libetonyek project.

 *

 * 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/.

 */

#ifndef IWORKMEMORYSTREAM_H_INCLUDED

#define IWORKMEMORYSTREAM_H_INCLUDED

#include <memory>

#include <vector>

#include "libetonyek_utils.h"

namespace libetonyek

{

class IWORKMemoryStream : public librevenge::RVNGInputStream

{

  // -Weffc++

  IWORKMemoryStream(const IWORKMemoryStream &other);

  IWORKMemoryStream &operator=(const IWORKMemoryStream &other);

public:

  explicit IWORKMemoryStream(const RVNGInputStreamPtr_t &input);

  IWORKMemoryStream(const RVNGInputStreamPtr_t &input, unsigned length);

  explicit IWORKMemoryStream(const std::vector<unsigned char> &data);

  IWORKMemoryStream(const unsigned char *data, unsigned length);

  ~IWORKMemoryStream() override;

  bool isStructured() override;

  unsigned subStreamCount() override;

  const char *subStreamName(unsigned id) override;

  bool existsSubStream(const char *) override

  {

    return false;

  }

  librevenge::RVNGInputStream *getSubStreamByName(const char *name) override;

  librevenge::RVNGInputStream *getSubStreamById(unsigned id) override;

  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;

private:

  void assign(const unsigned char *data, unsigned length);

  void read(const RVNGInputStreamPtr_t &input, unsigned length);

private:

  std::unique_ptr<unsigned char[]> m_data;

  long m_length;

  long m_pos;

};

}

#endif // IWORKMEMORYSTREAM_H_INCLUDED

/* vim:set shiftwidth=2 softtabstop=2 expandtab: */