Exiv2
pgfimage.hpp
1 // ***************************************************************** -*- C++ -*-
2 /*
3  * Copyright (C) 2004-2021 Exiv2 authors
4  * This program is part of the Exiv2 distribution.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
19  */
20 #ifndef PGFIMAGE_HPP_
21 #define PGFIMAGE_HPP_
22 
23 // *****************************************************************************
24 #include "exiv2lib_export.h"
25 
26 // included header files
27 #include "image.hpp"
28 
29 // *****************************************************************************
30 // namespace extensions
31 namespace Exiv2
32 {
33 
34 // *****************************************************************************
35 // class definitions
36 
37  // Add PGF to the supported image formats
38  namespace ImageType
39  {
40  const int pgf = 17;
41  }
42 
47  class EXIV2API PgfImage : public Image {
48  public:
50 
51 
66  PgfImage(BasicIo::AutoPtr io, bool create);
68 
70 
71  void readMetadata();
72  void writeMetadata();
74 
76 
77  std::string mimeType() const { return "image/pgf"; }
79 
80  private:
81  bool bSwap_; // true for bigEndian hardware, else false
83 
84  PgfImage(const PgfImage& rhs);
87  PgfImage& operator=(const PgfImage& rhs);
95  void doWriteMetadata(BasicIo& oIo);
97  byte readPgfMagicNumber(BasicIo& iIo);
99  uint32_t readPgfHeaderSize(BasicIo& iIo);
101  DataBuf readPgfHeaderStructure(BasicIo& iIo, int& width,int & height);
103 
104  }; // class PgfImage
105 
106 // *****************************************************************************
107 // template, inline and free functions
108 
109  // These could be static private functions on Image subclasses but then
110  // ImageFactory needs to be made a friend.
116  EXIV2API Image::AutoPtr newPgfInstance(BasicIo::AutoPtr io, bool create);
117 
119  EXIV2API bool isPgfType(BasicIo& iIo, bool advance);
120 
121 } // namespace Exiv2
122 
123 #endif // #ifndef PGFIMAGE_HPP_
An interface for simple binary IO.
Definition: basicio.hpp:55
std::auto_ptr< BasicIo > AutoPtr
BasicIo auto_ptr type.
Definition: basicio.hpp:58
Utility class containing a character array. All it does is to take care of memory allocation and dele...
Definition: types.hpp:193
Abstract base class defining the interface for an image. This is the top-level interface to the Exiv2...
Definition: image.hpp:78
std::auto_ptr< Image > AutoPtr
Image auto_ptr type.
Definition: image.hpp:81
Class to access PGF images. Exif and IPTC metadata are supported directly.
Definition: pgfimage.hpp:47
std::string mimeType() const
Return the MIME type of the image.
Definition: pgfimage.hpp:77
const int pgf
PGF image type (see class PgfImage)
Definition: pgfimage.hpp:40
Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...
Definition: asfvideo.hpp:36
EXIV2API bool isPgfType(BasicIo &iIo, bool advance)
Check if the file iIo is a PGF image.
Definition: pgfimage.cpp:327
EXIV2API Image::AutoPtr newPgfInstance(BasicIo::AutoPtr io, bool create)
Create a new PgfImage instance and return an auto-pointer to it. Caller owns the returned object and ...
Definition: pgfimage.cpp:317