src/tifffwd_int.hpp

// ***************************************************************** -*- C++ -*-
/*
 * Copyright (C) 2004-2021 Exiv2 authors
 * This program is part of the Exiv2 distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
 */
#ifndef TIFFFWD_INT_HPP_
#define TIFFFWD_INT_HPP_

// *****************************************************************************
// included header files
#include "types.hpp"
#include "tags_int.hpp"

// + standard includes
#include <memory>
#include <stack>
#include <vector>

// *****************************************************************************
// Exiv2 namespace extensions
namespace Exiv2 {

    class Exifdatum;

    namespace Internal {

    class TiffHeaderBase;
    class TiffComponent;
    class TiffEntryBase;
    class TiffEntry;
    class TiffDataEntry;
    class TiffSizeEntry;
    class TiffDirectory;
    class TiffSubIfd;
    class TiffMnEntry;
    class TiffBinaryArray;
    class TiffBinaryElement;

    class TiffIfdMakernote;
    class MnHeader;

    class TiffVisitor;
    class TiffFinder;
    class TiffDecoder;
    class TiffEncoder;
    class TiffReader;

    class TiffRwState;
    class TiffPathItem;
    struct TiffMappingInfo;

    class IoWrapper;
    class OffsetWriter;

// *****************************************************************************
// type definitions

    /*!
      @brief Function pointer type for a TiffDecoder member function
             to decode a TIFF component.
     */
    using DecoderFct = void (TiffDecoder::*)(const TiffEntryBase*);
    /*!
      @brief Function pointer type for a TiffDecoder member function
             to decode a TIFF component.
     */
    using EncoderFct = void (TiffEncoder::*)(TiffEntryBase*, const Exifdatum*);
    /*!
      @brief Type for a function pointer for a function to decode a TIFF component.
     */
    using FindDecoderFct = DecoderFct (*)(const std::string& make, uint32_t extendedTag, IfdId group);
    /*!
      @brief Type for a function pointer for a function to encode a TIFF component.
     */
    using FindEncoderFct = EncoderFct (*)(const std::string& make, uint32_t extendedTag, IfdId group);
    /*!
      @brief Type for a function pointer for a function to create a TIFF component.
             Use TiffComponent::UniquePtr, it is not used in this declaration only
             to reduce dependencies.
     */
    using NewTiffCompFct = std::unique_ptr<TiffComponent> (*)(uint16_t tag, IfdId group);

    //! Stack to hold a path from the TIFF root element to a TIFF entry
    using TiffPath = std::stack<TiffPathItem>;

    //! Type for a list of primary image groups
    using PrimaryGroups = std::vector<IfdId>;
}}                                      // namespace Internal, Exiv2

#endif                                  // #ifndef TIFFFWD_INT_HPP_