types.hpp File Reference

Type definitions for Exiv2 and related functionality. More...

#include "exv_conf.h"
#include <string>
#include <iosfwd>
#include <utility>
#include <sstream>
#include <cstdio>
#include <stdint.h>
#include <ctime>

Include dependency graph for types.hpp:

This graph shows which files directly or indirectly include this file:


Namespaces

namespace  Exiv2

Classes

struct  Exiv2::TypeInfoTable
 Information pertaining to the defined types. More...
class  Exiv2::TypeInfo
 Type information lookup functions. Implemented as a static class. More...
struct  Exiv2::DataBufRef
 Auxiliary type to enable copies and assignments, similar to std::auto_ptr_ref. See http://www.josuttis.com/libbook/auto_ptr.html for a discussion. More...
class  Exiv2::DataBuf
 Utility class containing a character array. All it does is to take care of memory allocation and deletion. Its primary use is meant to be as a stack variable in functions that need a temporary data buffer. Todo: this should be some sort of smart pointer, essentially an std::auto_ptr for a character array. But it isn't... More...

Typedefs

typedef uint8_t Exiv2::byte
 1 byte unsigned integer type.
typedef std::pair< uint32_t,
uint32_t > 
Exiv2::URational
 8 byte unsigned rational type.
typedef std::pair< int32_t,
int32_t > 
Exiv2::Rational
 8 byte signed rational type.

Enumerations

enum  Exiv2::ByteOrder { invalidByteOrder, littleEndian, bigEndian }
 Type to express the byte order (little or big endian).
enum  Exiv2::TypeId {
  invalidTypeId, unsignedByte, asciiString, unsignedShort,
  unsignedLong, unsignedRational, invalid6, undefined,
  signedShort, signedLong, signedRational, string,
  date, time, comment, directory,
  lastTypeId
}
 Type identifiers for IFD format types.
enum  Exiv2::IfdId {
  ifdIdNotSet, ifd0Id, exifIfdId, gpsIfdId,
  iopIfdId, ifd1Id, canonIfdId, canonCs1IfdId,
  canonCs2IfdId, canonCfIfdId, fujiIfdId, nikon1IfdId,
  nikon2IfdId, nikon3IfdId, olympusIfdId, panasonicIfdId,
  sigmaIfdId, sonyIfdId, lastIfdId
}
 Type to specify the IFD to which a metadata belongs.
enum  Exiv2::DataLocId { invalidDataLocId, valueData, directoryData, lastDataLocId }
 Type to identify where the data is stored in a directory.

Functions

uint16_t Exiv2::getUShort (const byte *buf, ByteOrder byteOrder)
 Read a 2 byte unsigned short value from the data buffer.
uint32_t Exiv2::getULong (const byte *buf, ByteOrder byteOrder)
 Read a 4 byte unsigned long value from the data buffer.
URational Exiv2::getURational (const byte *buf, ByteOrder byteOrder)
 Read an 8 byte unsigned rational value from the data buffer.
int16_t Exiv2::getShort (const byte *buf, ByteOrder byteOrder)
 Read a 2 byte signed short value from the data buffer.
int32_t Exiv2::getLong (const byte *buf, ByteOrder byteOrder)
 Read a 4 byte signed long value from the data buffer.
Rational Exiv2::getRational (const byte *buf, ByteOrder byteOrder)
 Read an 8 byte signed rational value from the data buffer.
std::ostream & Exiv2::operator<< (std::ostream &os, const Rational &r)
 Output operator for our fake rational.
std::istream & Exiv2::operator>> (std::istream &is, Rational &r)
 Input operator for our fake rational.
std::ostream & Exiv2::operator<< (std::ostream &os, const URational &r)
 Output operator for our fake unsigned rational.
std::istream & Exiv2::operator>> (std::istream &is, URational &r)
 Input operator for our fake unsigned rational.
long Exiv2::us2Data (byte *buf, uint16_t s, ByteOrder byteOrder)
 Convert an unsigned short to data, write the data to the buffer, return number of bytes written.
long Exiv2::ul2Data (byte *buf, uint32_t l, ByteOrder byteOrder)
 Convert an unsigned long to data, write the data to the buffer, return number of bytes written.
long Exiv2::ur2Data (byte *buf, URational l, ByteOrder byteOrder)
 Convert an unsigned rational to data, write the data to the buffer, return number of bytes written.
long Exiv2::s2Data (byte *buf, int16_t s, ByteOrder byteOrder)
 Convert a signed short to data, write the data to the buffer, return number of bytes written.
long Exiv2::l2Data (byte *buf, int32_t l, ByteOrder byteOrder)
 Convert a signed long to data, write the data to the buffer, return number of bytes written.
long Exiv2::r2Data (byte *buf, Rational l, ByteOrder byteOrder)
 Convert a signed rational to data, write the data to the buffer, return number of bytes written.
void Exiv2::hexdump (std::ostream &os, const byte *buf, long len, long offset=0)
 Print len bytes from buf in hex and ASCII format to the given stream, prefixed with the position in the buffer adjusted by offset.
bool Exiv2::isHex (const std::string &str, size_t size=0, const std::string &prefix="")
 Return true if str is a hex number starting with prefix followed by size hex digits, false otherwise. If size is 0, any number of digits is allowed and all are checked.
int Exiv2::exifTime (const char *buf, struct tm *tm)
 Converts a string in the form "%Y:%m:%d %H:%M:%S", e.g., "2007:05:24 12:31:55" to broken down time format, returns 0 if successful, else 1.
template<typename T>
std::string Exiv2::toString (const T &arg)
 Utility function to convert the argument of any type to a string.
template<typename IntType>
IntType Exiv2::gcd (IntType n, IntType m)
 Return the greatest common denominator of n and m. (implementation from Boost rational.hpp).

Detailed Description

Type definitions for Exiv2 and related functionality.

Version:
Rev
671
Author:
Andreas Huggel (ahu) ahuggel@gmx.net
Date:
09-Jan-04, ahu: created
11-Feb-04, ahu: isolated as a component 31-Jul-04, brad: added Time, Data and String values

Generated on Thu Jan 26 14:24:44 2006 for Exiv2 by  doxygen 1.4.6