refinery::InMemoryExifData Class Reference

An in-memory, fake Exif data container. More...

#include <refinery/exif.h>

Inheritance diagram for refinery::InMemoryExifData:

Collaboration diagram for refinery::InMemoryExifData:

List of all members.

Public Member Functions
	InMemoryExifData ()
	constructor.
	~InMemoryExifData ()
	destructor.
virtual bool	hasKey (const char *key) const
	True iff the Exif data contains the given key.
virtual std::string	getString (const char *key) const
	Returns the specified Exif value as a string.
virtual void	getBytes (const char *key, std::vector< byte > &outBytes) const
	Copies the specified Exif value into a byte-array.
virtual int	getInt (const char *key) const
	Returns the specified Exif value as an int.
virtual float	getFloat (const char *key) const
	Returns the specified Exif value as a float.
virtual void	setString (const char *key, const std::string &s)
	Sets a string Exif datum.

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Detailed Description

An in-memory, fake Exif data container.

This only returns Exif data that has been set in it programmatically. It's useful for testing or as a base class for other Exif parsers.

 InMemoryExifData exifData;
 exifData.setString("Exif.Image.Model", "NIKON D5000");
 std::string model(exifData.getString("Exif.Image.Model"));
 std::cout << "Camera: " << model << std::endl;

Definition at line 97 of file exif.h.

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Constructor & Destructor Documentation

refinery::InMemoryExifData::InMemoryExifData

(

)

constructor.

refinery::InMemoryExifData::~InMemoryExifData

(

)

destructor.

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Member Function Documentation

virtual void refinery::InMemoryExifData::getBytes	(	const char *	key,
		std::vector< byte > &	outBytes
	)		const [virtual]

Copies the specified Exif value into a byte-array.

Existing data will be erased.

This throws an error if the Exif data doesn't exist. Use hasKey() to verify that it does before calling this method.

Parameters:

[in]	key	Exif key, for instance "Exif.Nikon3.LinearizationTable".
[out]	outBytes	Byte-array to fill.

Implements refinery::ExifData.

virtual float refinery::InMemoryExifData::getFloat

(

const char *

key

)

const [virtual]

Returns the specified Exif value as a float.

This throws an error if the Exif data doesn't exist. Use hasKey() to verify that it does before calling this method.

Parameters:

[in]

key

Exif key, for instance "Exif.Image.XResolution".

Returns:

A float representation of the Exif value.

Implements refinery::ExifData.

virtual int refinery::InMemoryExifData::getInt

(

const char *

key

)

const [virtual]

Returns the specified Exif value as an int.

This throws an error if the Exif data doesn't exist. Use hasKey() to verify that it does before calling this method.

Parameters:

[in]

key

Exif key, for instance "Exif.Image.Orientation".

Returns:

An int representation of the Exif value.

Implements refinery::ExifData.

virtual std::string refinery::InMemoryExifData::getString

(

const char *

key

)

const [virtual]

Returns the specified Exif value as a string.

This throws an error if the Exif data doesn't exist. Use hasKey() to verify that it does before calling this method.

Parameters:

[in]

key

Exif key, for instance "Exif.Image.Model".

Returns:

A string representation of the Exif value.

Implements refinery::ExifData.

virtual bool refinery::InMemoryExifData::hasKey

(

const char *

key

)

const [virtual]

True iff the Exif data contains the given key.

Parameters:

[in]

key

Exif key, for instance "Exif.Image.Orientation".

Returns:

True iff the Exif data contains the key.

Implements refinery::ExifData.

virtual void refinery::InMemoryExifData::setString	(	const char *	key,
		const std::string &	s
	)		[virtual]

Sets a string Exif datum.

Parameters:

[in]	key	Exif key, for instance "Exif.Image.Model".
[in]	s	String, for instance "NIKON D5000".

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

• include/refinery/exif.h