ome::files::tiff::FieldBase::Impl Class Reference

Internal implementation details of FieldBase. More...

Collaboration diagram for ome::files::tiff::FieldBase::Impl:

Public Member Functions
	Impl (std::shared_ptr< IFD > &ifd, tag_type tag)
	Constructor. More...
	~Impl ()
	Destructor.
std::shared_ptr< IFD >	getIFD () const
	Get the directory this field belongs to. More...
::TIFF *	getTIFF ()
	Get the TIFF this field belongs to. More...
const ::TIFFField *	getFieldInfo ()
	Get information from libtiff about this field. More...

Public Attributes
std::weak_ptr< IFD >	ifd
	Weak reference to the parent IFD.
tag_type	tag
	The tag being wrapped.
const ::TIFFField *	fieldinfo
	Field information for this tag.

Detailed Description

Internal implementation details of FieldBase.

Constructor & Destructor Documentation

Impl()

ome::files::tiff::FieldBase::Impl::Impl ( std::shared_ptr< IFD > &  ifd, tag_type  tag  )

inline

Constructor.

Parameters

ifd	the directory the field belongs to.
tag	the tag identifying this field.

Member Function Documentation

getFieldInfo()

const ::TIFFField* ome::files::tiff::FieldBase::Impl::getFieldInfo ( )

inline

Get information from libtiff about this field.

libtiff is not aware of every tag, or special-purpose private tags.

Returns

the field information, or null if the tag was unknown.

Todo:

Log an error or throw an exception. Having a logger as a Field class member is likely to heavyweight. However, we do need to be sure that non-standard unregistered fields can be read. Maybe by using the libtiff custom type registration as done for ImageJ metadata?

References fieldinfo, and getTIFF().

getIFD()

std::shared_ptr<IFD> ome::files::tiff::FieldBase::Impl::getIFD ( ) const

inline

Get the directory this field belongs to.

Returns

the directory.

References ifd.

Referenced by getTIFF().

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getTIFF()

::TIFF* ome::files::tiff::FieldBase::Impl::getTIFF ( )

inline

Get the TIFF this field belongs to.

Note

Needs wrapping in a sentry by the caller.

Returns

a pointer to the underlying TIFF.

References getIFD().

Referenced by getFieldInfo().

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

• ome/files/tiff/Field.cpp