Stuff specific to JPEG and (built-in) TIFF handler. More...

Inheritance diagram for ExifBitmapHandler:

Collaboration diagram for ExifBitmapHandler:

Public Member Functions
	convertMetadataVersion ($metadata, $version=1)
	Convert metadata version.
	formatMetadata ($image)
	getImageSize ($image, $path)
	Wrapper for base classes ImageHandler::getImageSize() that checks for rotation reported from metadata and swaps the sizes to match.
	getMetadataType ($image)
	Get a string describing the type of metadata, for display purposes.
	getRotation ($file)
	On supporting image formats, try to read out the low-level orientation of the file and return the angle that the file needs to be rotated to be viewed.
	isMetadataValid ($image, $metadata)
	Check if the metadata string is valid for this handler.
Public Attributes
const	BROKEN_FILE = '-1'
const	OLD_BROKEN_FILE = '0'
Protected Member Functions
	getRotationForExif ($data)
	Given a chunk of serialized Exif metadata, return the orientation as degrees of rotation.

Detailed Description

Stuff specific to JPEG and (built-in) TIFF handler.

All metadata related, since both JPEG and TIFF support Exif.

Definition at line 13 of file ExifBitmap.php.

Member Function Documentation

ExifBitmapHandler::convertMetadataVersion	(	$	metadata,
		$	version = `1`
	)

Convert metadata version.

By default just returns $metadata, but can be used to allow media handlers to convert between metadata versions.

Parameters:

$metadata	Mixed String or Array metadata array (serialized if string)
$version	Integer target version

Returns:: Array serialized metadata in specified version, or $metadata on fail.

Reimplemented from MediaHandler.

Definition at line 18 of file ExifBitmap.php.

References $version, FormatMetadata\collapseContactInfo(), and FormatMetadata\flattenArray().

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ExifBitmapHandler::formatMetadata ( $ image )

Parameters:

$image File

Returns:: array|bool

Reimplemented from MediaHandler.

Definition at line 102 of file ExifBitmap.php.

References MediaHandler\formatMetadataHelper(), and isMetadataValid().

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ExifBitmapHandler::getImageSize	(	$	image,
		$	path
	)

Wrapper for base classes ImageHandler::getImageSize() that checks for rotation reported from metadata and swaps the sizes to match.

Parameters:

File	$image
string	$path

Returns:: array

Reimplemented from ImageHandler.

Definition at line 136 of file ExifBitmap.php.

References $path, $wgEnableAutoRotation, MediaHandler\getMetadata(), and getRotationForExif().

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ExifBitmapHandler::getMetadataType ( $ image )

Get a string describing the type of metadata, for display purposes.

Returns:: string

Reimplemented from MediaHandler.

Definition at line 124 of file ExifBitmap.php.

ExifBitmapHandler::getRotation ( $ file )

On supporting image formats, try to read out the low-level orientation of the file and return the angle that the file needs to be rotated to be viewed.

This information is only useful when manipulating the original file; the width and height we normally work with is logical, and will match any produced output views.

Parameters:

$file File

Returns:: int 0, 90, 180 or 270

Reimplemented from BitmapHandler.

Definition at line 169 of file ExifBitmap.php.

References $file, $wgEnableAutoRotation, and getRotationForExif().

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ExifBitmapHandler::getRotationForExif ( $ data ) [protected]

Given a chunk of serialized Exif metadata, return the orientation as degrees of rotation.

Parameters:

string $data

Returns:: int 0, 90, 180 or 270 orientation can include flipping as well; see if this is an issue!

Definition at line 187 of file ExifBitmap.php.

References wfRestoreWarnings(), and wfSuppressWarnings().

Referenced by getImageSize(), and getRotation().

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ExifBitmapHandler::isMetadataValid	(	$	image,
		$	metadata
	)

Check if the metadata string is valid for this handler.

If it returns MediaHandler::METADATA_BAD (or false), Image will reload the metadata from the file and update the database. MediaHandler::METADATA_GOOD for if the metadata is a-ok, MediaHanlder::METADATA_COMPATIBLE if metadata is old but backwards compatible (which may or may not trigger a metadata reload).

Reimplemented from MediaHandler.

Definition at line 63 of file ExifBitmap.php.

References $wgShowEXIF, MediaHandler\METADATA_BAD, MediaHandler\METADATA_COMPATIBLE, MediaHandler\METADATA_GOOD, Exif\version(), wfDebug(), wfRestoreWarnings(), and wfSuppressWarnings().

Referenced by formatMetadata().

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