Exiv2
pngimage.hpp
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 
3 #ifndef PNGIMAGE_HPP_
4 #define PNGIMAGE_HPP_
5 
6 // *****************************************************************************
7 #include "exiv2lib_export.h"
8 
9 // included header files
10 #include "image.hpp"
11 
12 // *****************************************************************************
13 // namespace extensions
14 namespace Exiv2 {
15 // *****************************************************************************
16 // class definitions
17 
22 class EXIV2API PngImage : public Image {
23  public:
25 
26 
41  PngImage(BasicIo::UniquePtr io, bool create);
43 
45 
46  void readMetadata() override;
47  void writeMetadata() override;
48 
55  void printStructure(std::ostream& out, PrintStructureOption option, size_t depth) override;
57 
59 
60  [[nodiscard]] std::string mimeType() const override;
62 
63  private:
71  void doWriteMetadata(BasicIo& outIo);
73 
74  std::string profileName_;
75 
76 }; // class PngImage
77 
78 // *****************************************************************************
79 // template, inline and free functions
80 
81 // These could be static private functions on Image subclasses but then
82 // ImageFactory needs to be made a friend.
88 EXIV2API Image::UniquePtr newPngInstance(BasicIo::UniquePtr io, bool create);
89 
91 EXIV2API bool isPngType(BasicIo& iIo, bool advance);
92 
93 } // namespace Exiv2
94 
95 #endif // #ifndef PNGIMAGE_HPP_
std::unique_ptr< Image > UniquePtr
Image auto_ptr type.
Definition: image.hpp:53
An interface for simple binary IO.
Definition: basicio.hpp:35
Abstract base class defining the interface for an image. This is the top-level interface to the Exiv2...
Definition: image.hpp:50
PrintStructureOption
Options for printStructure.
Definition: image.hpp:38
List of TIFF compression to MIME type mappings.
Definition: tiffimage.cpp:47
std::unique_ptr< BasicIo > UniquePtr
BasicIo auto_ptr type.
Definition: basicio.hpp:38
Class CrwImage to access Canon CRW images. References: The Canon RAW (CRW) File Format by Phil Harv...
Definition: asfvideo.hpp:15
EXIV2API Image::UniquePtr newPngInstance(BasicIo::UniquePtr io, bool create)
Create a new PngImage instance and return an auto-pointer to it. Caller owns the returned object and ...
Class to access PNG images. Exif and IPTC metadata are supported directly.
Definition: pngimage.hpp:22
EXIV2API bool isPngType(BasicIo &iIo, bool advance)
Check if the file iIo is a PNG image.