Jpeg2000JasperReader Class Reference

Collaboration diagram for Jpeg2000JasperReader:

Public Member Functions
	Jpeg2000JasperReader (QIODevice *iod, const SubFormat format=Jp2Format)
	~Jpeg2000JasperReader ()
bool	read (QImage *pImage)
bool	write (const QImage &image, int quality)
	Opens the file data and attempts to decode it using the Jasper library.
	Jpeg2000JasperReader (QIODevice *iod, const SubFormat format=Jp2Format)
	~Jpeg2000JasperReader ()
bool	read (QImage *pImage)
bool	write (const QImage &image, int quality)

Detailed Description

Definition at line 43 of file qjp2handler.cpp.

Constructor & Destructor Documentation

Jpeg2000JasperReader() [1/2]

Jpeg2000JasperReader::Jpeg2000JasperReader	(	QIODevice *	iod,
		const SubFormat	format = Jp2Format )

Construct a Jpeg2000JasperReader using the provided imageIO. Note that currently the jasper library is initialized in this constructor, (and freed in the destructor) which means that:

• Only one instance of this class may exist at one time
• No thread safety

Definition at line 299 of file qjp2handler.cpp.

Referenced by QJp2Handler::read(), and QJp2Handler::write().

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~Jpeg2000JasperReader() [1/2]

Jpeg2000JasperReader::~Jpeg2000JasperReader

(

)

Definition at line 328 of file qjp2handler.cpp.

Jpeg2000JasperReader() [2/2]

Jpeg2000JasperReader::Jpeg2000JasperReader	(	QIODevice *	iod,
		const SubFormat	format = Jp2Format )

~Jpeg2000JasperReader() [2/2]

Jpeg2000JasperReader::~Jpeg2000JasperReader

(

)

Member Function Documentation

read() [1/2]

bool Jpeg2000JasperReader::read

(

QImage *

pImage

)

Opens the file data and attempts to decode it using the Jasper library. Returns true if successful, false on failure

Definition at line 349 of file qjp2handler.cpp.

References ScopedJasperImage::ScopedJasperImage().

Referenced by QJp2Handler::read().

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read() [2/2]

bool Jpeg2000JasperReader::read

(

QImage *

pImage

)

write() [1/2]

bool Jpeg2000JasperReader::write	(	const QImage &	image,
		int	quality )

Opens the file data and attempts to decode it using the Jasper library.

Returns true on success, false on failure.

32-bit and color mapped color images are encoded as RGB images, color mapped grayscale images are encoded as grayscale images

Definition at line 758 of file qjp2handler.cpp.

References Jp2Format.

Referenced by QJp2Handler::write().

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write() [2/2]

bool Jpeg2000JasperReader::write	(	const QImage &	image,
		int	quality )

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

• qtimageformats/src/plugins/imageformats/jp2/qjp2handler.cpp (d59c5eb8ccc5777ab99c96c733eafb1405fcb808)