DjVuImage Class Reference

Support for detecting/validating DjVu image files and getting some basic file metadata (resolution etc) More...

Public Member Functions
	__construct ( $filename)
	convertDumpToXML ( $dump)
	Hack to temporarily work around djvutoxml bug.
	dump ()
	For debugging; dump the IFF chunk structure.
	getImageSize ()
	Return data in the style of getimagesize()
	getInfo ()
	isValid ()
	Check if the given file is indeed a valid DjVu image file.
	pageTextCallback ( $matches)
	parseFormDjvu ( $line, &$xml)
	retrieveMetaData ()
	Return an XML string describing the DjVu image.

Public Attributes
const	DJVUTXT_MEMORY_LIMIT = 300000
	@const DJVUTXT_MEMORY_LIMIT Memory limit for the DjVu description software

Private Member Functions
	dumpForm ( $file, $length, $indent)
	getMultiPageInfo ( $file, $formLength)
	getPageInfo ( $file)
	readChunk ( $file)
	skipChunk ( $file, $chunkLength)

Detailed Description

Support for detecting/validating DjVu image files and getting some basic file metadata (resolution etc)

File format docs are available in source package for DjVuLibre: http://djvulibre.djvuzone.org/

Definition at line 36 of file DjVuImage.php.

Constructor & Destructor Documentation

__construct()

DjVuImage::__construct

(

$filename

)

Parameters

string

$filename

The DjVu file name.

Definition at line 45 of file DjVuImage.php.

Member Function Documentation

convertDumpToXML()

DjVuImage::convertDumpToXML

(

$dump

)

Hack to temporarily work around djvutoxml bug.

Parameters

string

$dump

Returns

string

Definition at line 308 of file DjVuImage.php.

References $line, parseFormDjvu(), version, and wfDebug().

Referenced by retrieveMetaData().

dump()

DjVuImage::dump

(

)

For debugging; dump the IFF chunk structure.

Definition at line 82 of file DjVuImage.php.

References $header, and dumpForm().

dumpForm()

DjVuImage::dumpForm ( $file, $length, $indent )

private

Definition at line 93 of file DjVuImage.php.

References dumpForm().

Referenced by dump(), and dumpForm().

getImageSize()

DjVuImage::getImageSize

(

)

Return data in the style of getimagesize()

Returns

array|bool Array or false on failure

Definition at line 63 of file DjVuImage.php.

References getInfo().

getInfo()

DjVuImage::getInfo

(

)

Definition at line 119 of file DjVuImage.php.

References $header, getMultiPageInfo(), getPageInfo(), and wfDebug().

Referenced by getImageSize(), and isValid().

getMultiPageInfo()

DjVuImage::getMultiPageInfo ( $file, $formLength )

private

Definition at line 175 of file DjVuImage.php.

References getPageInfo(), list, readChunk(), skipChunk(), and wfDebug().

Referenced by getInfo().

getPageInfo()

DjVuImage::getPageInfo ( $file )

private

Definition at line 204 of file DjVuImage.php.

References list, readChunk(), and wfDebug().

Referenced by getInfo(), and getMultiPageInfo().

isValid()

DjVuImage::isValid

(

)

Check if the given file is indeed a valid DjVu image file.

Returns

bool

Definition at line 53 of file DjVuImage.php.

References getInfo().

Referenced by retrieveMetaData().

pageTextCallback()

DjVuImage::pageTextCallback

(

$matches

)

Definition at line 296 of file DjVuImage.php.

References $matches.

parseFormDjvu()

DjVuImage::parseFormDjvu	(		$line,
		&	$xml )

Definition at line 369 of file DjVuImage.php.

References $line.

Referenced by convertDumpToXML().

readChunk()

DjVuImage::readChunk ( $file )

private

Definition at line 155 of file DjVuImage.php.

References $header.

Referenced by getMultiPageInfo(), and getPageInfo().

retrieveMetaData()

DjVuImage::retrieveMetaData

(

)

Return an XML string describing the DjVu image.

Returns

string|bool

Definition at line 246 of file DjVuImage.php.

References $retval, $wgDjvuDump, $wgDjvuToXML, $wgDjvuTxt, convertDumpToXML(), isValid(), wfDebug(), wfEscapeShellArg(), and wfShellExec().

skipChunk()

DjVuImage::skipChunk ( $file, $chunkLength )

private

Definition at line 166 of file DjVuImage.php.

Referenced by getMultiPageInfo().

Member Data Documentation

DJVUTXT_MEMORY_LIMIT

const DjVuImage::DJVUTXT_MEMORY_LIMIT = 300000

@const DJVUTXT_MEMORY_LIMIT Memory limit for the DjVu description software

Definition at line 40 of file DjVuImage.php.

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

• includes/media/DjVuImage.php