OpenRaw::Internals::IFDDir Class Reference

List of all members.

Public Types
typedef boost::shared_ptr< IFDDir >	Ref
Public Member Functions
	IFDDir (off_t _offset, IFDFileContainer &_container)
virtual	~IFDDir ()
off_t	offset () const
bool	load ()
int	numTags ()
IFDEntry::Ref	getEntry (int id)
bool	getIntegerValue (int id, uint32_t &v)
bool	getLongValue (int id, uint32_t &v)
bool	getShortValue (int id, uint16_t &v)
off_t	nextIFD ()
Ref	getSubIFD ()
Ref	getExifIFD ()

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Detailed Description

Definition at line 35 of file ifddir.h.

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Member Function Documentation

off_t OpenRaw::Internals::IFDDir::offset

(

)

const [inline]

return the offset

Definition at line 44 of file ifddir.h.

Referenced by getExifIFD(), and getSubIFD().

bool OpenRaw::Internals::IFDDir::load

(

)

load the directory to memory

Definition at line 49 of file ifddir.cpp.

References OpenRaw::Internals::RawContainer::file(), OpenRaw::IO::Stream::read(), OpenRaw::Internals::RawContainer::readInt16(), OpenRaw::Internals::RawContainer::readInt32(), and OpenRaw::IO::Stream::seek().

int OpenRaw::Internals::IFDDir::numTags

(

)

[inline]

return the number of entries

Definition at line 52 of file ifddir.h.

bool OpenRaw::Internals::IFDDir::getIntegerValue	(	int	id,
		uint32_t &	v
	)

Get an loosely typed integer value from an entry. This method is preferred over getLongValue() or getShortValue() unless you really want the strong typing that IFD structure provide

Parameters:

id

the IFD field id

Return values:

v

the long value

Returns:

true if success

Definition at line 84 of file ifddir.cpp.

References getEntry().

bool OpenRaw::Internals::IFDDir::getLongValue	(	int	id,
		uint32_t &	v
	)

Get a long value from an entry

Parameters:

id

the IFD field id

Return values:

v

the long value

Returns:

true if success

Definition at line 113 of file ifddir.cpp.

References getEntry().

Referenced by getExifIFD(), and getSubIFD().

bool OpenRaw::Internals::IFDDir::getShortValue	(	int	id,
		uint16_t &	v
	)

Get a short value from an entry

Parameters:

id

the IFD field id

Return values:

v

the long value

Returns:

true if success

Definition at line 131 of file ifddir.cpp.

References getEntry().

off_t OpenRaw::Internals::IFDDir::nextIFD

(

)

get the offset of the next IFD in absolute

Definition at line 148 of file ifddir.cpp.

References OpenRaw::Internals::RawContainer::file(), OpenRaw::Internals::RawContainer::readInt16(), OpenRaw::Internals::RawContainer::readInt32(), and OpenRaw::IO::Stream::seek().

IFDDir::Ref OpenRaw::Internals::IFDDir::getSubIFD

(

)

get the SubIFD.

Returns:

Ref to the new IFDDir if found

Definition at line 173 of file ifddir.cpp.

References getLongValue(), IFDDir(), and offset().

IFDDir::Ref OpenRaw::Internals::IFDDir::getExifIFD

(

)

get the Exif IFD.

Returns:

Ref to the new IFDDir if found

Definition at line 187 of file ifddir.cpp.

References getLongValue(), IFDDir(), and offset().

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

• lib/ifddir.h
• lib/ifddir.cpp

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