Digikam::JPEGUtils::JpegRotator Class Reference

Public Member Functions
	JpegRotator (const QString &file)
	Create a JpegRotator reading from the given file.
	~JpegRotator ()
	Destructor.
bool	autoExifTransform ()
	Rotate the JPEG file's content according to the current orientation, resetting the current orientation to normal.
bool	exifTransform (const MetaEngineRotation &matrix)
	Rotate the given image by the given Matrix.
bool	exifTransform (TransformAction action)
	Rotate the given image by the given TransformAction.
void	setCurrentOrientation (MetaEngine::ImageOrientation orientation)
	Per default, the orientation is read from the metadata of the file.
void	setDestinationFile (const QString &dest)
	Set the destination file.
void	setDocumentName (const QString &documentName)
	Set the Exif document name of the destination file.

Protected Member Functions
bool	performJpegTransform (TransformAction action, const QString &src, const QString &dest)
void	updateMetadata (const QString &fileName, const MetaEngineRotation &matrix)

Protected Attributes
QString	m_destFile
QString	m_documentName
QString	m_file
DMetadata *	m_metadata = nullptr
MetaEngine::ImageOrientation	m_orientation = MetaEngine::ORIENTATION_UNSPECIFIED
QSize	m_originalSize

Constructor & Destructor Documentation

JpegRotator()

Digikam::JPEGUtils::JpegRotator::JpegRotator ( const QString & file )

explicit

Per default, it will replace the file, read the current orientation from the metadata, and use the src file name as documentName.

Member Function Documentation

autoExifTransform()

bool Digikam::JPEGUtils::JpegRotator::autoExifTransform

(

)

The final result of loading the image does not change.

exifTransform() [1/2]

bool Digikam::JPEGUtils::JpegRotator::exifTransform

(

const MetaEngineRotation &

matrix

)

The matrix describes the final transformation, it is not adjusted by current rotation.

exifTransform() [2/2]

bool Digikam::JPEGUtils::JpegRotator::exifTransform

(

TransformAction

action

)

The current orientation will be taken into account

setCurrentOrientation()

void Digikam::JPEGUtils::JpegRotator::setCurrentOrientation

(

MetaEngine::ImageOrientation

orientation

)

You can override this value

setDestinationFile()

void Digikam::JPEGUtils::JpegRotator::setDestinationFile

(

const QString &

dest

)

By default, the source file will be overwritten by atomic operation if the operation had succeeded.

setDocumentName()

void Digikam::JPEGUtils::JpegRotator::setDocumentName

(

const QString &

documentName

)

Default value is the source's file name