Exiv2::ExifTags Class Reference

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

#include <tags.hpp>

Collaboration diagram for Exiv2::ExifTags:

Collaboration graph
[legend]

List of all members.

Static Public Member Functions

static std::string tagName (uint16_t tag, IfdId ifdId)
 Return the name of the tag or a string with the hexadecimal value of the tag in the form "0x01ff", if the tag is not a known Exif tag.
static const char * tagTitle (uint16_t tag, IfdId ifdId)
 Return the title (label) of the tag. (Deprecated, use tagLabel() instead.).
static const char * tagLabel (uint16_t tag, IfdId ifdId)
 Return the title (label) of the tag.
static const char * tagDesc (uint16_t tag, IfdId ifdId)
 Return the description of the tag.
static uint16_t tag (const std::string &tagName, IfdId ifdId)
 Return the tag for one combination of IFD id and tagName. If the tagName is not known, it expects tag names in the form "0x01ff" and converts them to unsigned integer.
static IfdId ifdIdByIfdItem (const std::string &ifdItem)
 Return the IFD id for an IFD item.
static const char * ifdName (IfdId ifdId)
 Return the name of the IFD.
static const char * ifdItem (IfdId ifdId)
 Return the related image item (image or thumbnail).
static const char * sectionName (SectionId sectionId)
 Return the name of the section.
static const char * sectionName (uint16_t tag, IfdId ifdId)
 Return the name of the section for a combination of tag and IFD id.
static const char * sectionDesc (uint16_t tag, IfdId ifdId)
 Return the description of the section for a combination of tag and IFD id.
static SectionId sectionId (const std::string &sectionName)
 Return the section id for a section name.
static TypeId tagType (uint16_t tag, IfdId ifdId)
 Return the type for tag and IFD id.
static std::ostream & printTag (std::ostream &os, uint16_t tag, IfdId ifdId, const Value &value)
 Interpret and print the value of an Exif tag.
static const TagInfoifdTagList ()
 Return read-only list of built-in IFD0/1 tags.
static const TagInfoexifTagList ()
 Return read-only list of built-in Exif IFD tags.
static const TagInfoiopTagList ()
 Return read-only list of built-in IOP tags.
static const TagInfogpsTagList ()
 Return read-only list of built-in GPS tags.
static void taglist (std::ostream &os)
 Print a list of all standard Exif tags to output stream.
static void makerTaglist (std::ostream &os, IfdId ifdId)
 Print a list of all tags related to one makernote IfdId.
static void registerBaseTagInfo (IfdId ifdId)
 Register an IfdId with the base IFD TagInfo list for a makernote.
static void registerMakerTagInfo (IfdId ifdId, const TagInfo *tagInfo)
 Register an IfdId and TagInfo list for a makernote.
static bool isMakerIfd (IfdId ifdId)
 Return true if ifdId is an Ifd Id which is registered as a makernote Ifd id. Note: Calling this function with makerIfd returns false.


Detailed Description

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

Member Function Documentation

static std::string Exiv2::ExifTags::tagName ( uint16_t  tag,
IfdId  ifdId 
) [static]

Return the name of the tag or a string with the hexadecimal value of the tag in the form "0x01ff", if the tag is not a known Exif tag.

Parameters:
tag The tag
ifdId IFD id
Returns:
The name of the tag or a string containing the hexadecimal value of the tag in the form "0x01ff", if this is an unknown tag.

static const char* Exiv2::ExifTags::tagTitle ( uint16_t  tag,
IfdId  ifdId 
) [static]

Return the title (label) of the tag. (Deprecated, use tagLabel() instead.).

Parameters:
tag The tag
ifdId IFD id
Returns:
The title (label) of the tag.

static const char* Exiv2::ExifTags::tagLabel ( uint16_t  tag,
IfdId  ifdId 
) [static]

Return the title (label) of the tag.

Parameters:
tag The tag
ifdId IFD id
Returns:
The title (label) of the tag.

static const char* Exiv2::ExifTags::tagDesc ( uint16_t  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.

static uint16_t Exiv2::ExifTags::tag ( const std::string &  tagName,
IfdId  ifdId 
) [static]

Return the tag for one combination of IFD id and tagName. If the tagName is not known, it expects tag names in the form "0x01ff" and converts them to unsigned integer.

Exceptions:
Error if the tagname or ifdId is invalid

static const char* Exiv2::ExifTags::sectionName ( uint16_t  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.

static const char* Exiv2::ExifTags::sectionDesc ( uint16_t  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.

static void Exiv2::ExifTags::registerMakerTagInfo ( IfdId  ifdId,
const TagInfo tagInfo 
) [static]

Register an IfdId and TagInfo list for a makernote.

Exceptions:
Error if the MakerTagInfo registry is full


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

Generated on Wed Oct 15 01:05:32 2008 for Exiv2 by  doxygen 1.5.5