Exiv2::ExifTags Class Reference

Container for Exif tag information. Implemented as a static class. More...

#include <tags.hpp>

Collaboration diagram for Exiv2::ExifTags:

[legend]List of all members.

Static Public Member Functions
const char *	familyName ()
	Return an identifier for Exif metadata.
const char *	tagName (uint16 tag, IfdId ifdId)
	Return the name of the tag.
const char *	tagDesc (uint16 tag, IfdId ifdId)
	Return the description of the tag.
uint16	tag (const std::string &tagName, IfdId ifdId)
	Return the tag for one combination of IFD id and tagName.
const char *	ifdName (IfdId ifdId)
	Return the name of the IFD.
const char *	ifdItem (IfdId ifdId)
	Return the related image item (image or thumbnail).
const char *	sectionName (SectionId sectionId)
	Return the name of the section.
const char *	sectionName (uint16 tag, IfdId ifdId)
	Return the name of the section for a combination of tag and IFD id.
const char *	sectionDesc (uint16 tag, IfdId ifdId)
	Return the description of the section for a combination of tag and IFD id.
SectionId	sectionId (const std::string &sectionName)
	Return the section id for a section name.
std::string	makeKey (uint16 tag, IfdId ifdId)
	Return the key for the tag and IFD id. The key is of the form 'Exif.ifdItem.tagName'.
std::pair< uint16, IfdId >	decomposeKey (const std::string &key)
	Return tag and IFD id pair for the key.
std::ostream &	printTag (std::ostream &os, uint16 tag, IfdId ifdId, const Value &value)
	Interpret and print the value of an Exif tag.
void	taglist (std::ostream &os)
	Print a list of all tags to output stream.

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Detailed Description

Container for Exif tag information. Implemented as a static class.

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Member Function Documentation

std::pair< uint16, IfdId > Exiv2::ExifTags::decomposeKey (  const std::string &  key  )  [static]

Return tag and IFD id pair for the key. Returns: A pair consisting of the tag and IFD id. Exceptions: Error  ("Invalid key") if the key cannot be parsed into item item, section name and tag name parts.

const char * Exiv2::ExifTags::sectionDesc (  uint16  tag, IfdId  ifdId )  [static]

Return the description of the section for a combination of tag and IFD id. Parameters: tag  The tag ifdId  IFD id Returns: The description of the section or a string indicating that the section or the tag is unknown. Exceptions: Error  ("No taginfo for IFD") if there is no tag info data for the given IFD id in the lookup tables.

const char * Exiv2::ExifTags::sectionName (  uint16  tag, IfdId  ifdId )  [static]

Return the name of the section for a combination of tag and IFD id. Parameters: tag  The tag ifdId  IFD id Returns: The name of the section or a string indicating that the section or the tag is unknown. Exceptions: Error  ("No taginfo for IFD") if there is no tag info data for the given IFD id in the lookup tables.

const char * Exiv2::ExifTags::tagDesc (  uint16  tag, IfdId  ifdId )  [static]

Return the description of the tag. Parameters: tag  The tag ifdId  IFD id Returns: The description of the tag or a string indicating that the tag is unknown. Exceptions: Error  ("No taginfo for IFD") if there is no tag info data for the given IFD id in the lookup tables.

const char * Exiv2::ExifTags::tagName (  uint16  tag, IfdId  ifdId )  [static]

Return the name of the tag. Parameters: tag  The tag ifdId  IFD id Returns: The name of the tag or a string indicating that the tag is unknown. Exceptions: Error  ("No taginfo for IFD") if there is no tag info data for the given IFD id in the lookup tables.

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The documentation for this class was generated from the following files:

• tags.hpp
• tags.cpp

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