Digikam::JPEGUtils::JpegRotator Class Reference

Public Member Functions
bool	autoExifTransform ()
bool	exifTransform (const MetaEngineRotation &matrix)
bool	exifTransform (TransformAction action)
	JpegRotator (const QString &file)
void	setCurrentOrientation (MetaEngine::ImageOrientation orientation)
void	setDestinationFile (const QString &dest)
void	setDocumentName (const QString &documentName)
	~JpegRotator ()

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
MetaEngine::ImageOrientation	m_orientation
QSize	m_originalSize

Constructor & Destructor Documentation

JpegRotator()

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

explicit

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

References Digikam::MetaEngine::getItemOrientation(), Digikam::DMetadata::load(), m_documentName, m_metadata, and m_orientation.

~JpegRotator()

Digikam::JPEGUtils::JpegRotator::~JpegRotator

(

)

Destructor

References m_metadata.

Member Function Documentation

autoExifTransform()

bool Digikam::JPEGUtils::JpegRotator::autoExifTransform

(

)

Rotate the JPEG file's content according to the current orientation, resetting the current orientation to normal. The final result of loading the image does not change.

References exifTransform(), and Digikam::MetaEngineRotation::NoTransformation.

Referenced by Digikam::FileActionMngrFileWorker::transform().

exifTransform() [1/2]

bool Digikam::JPEGUtils::JpegRotator::exifTransform

(

const MetaEngineRotation &

matrix

)

Rotate the given image by the given Matrix. The matrix describes the final transformation, it is not adjusted by current rotation.

References Digikam::JPEGUtils::getJpegQuality(), Digikam::MetaEngine::hasSidecar(), Digikam::JPEGUtils::isJpegImage(), Digikam::DImg::JPEG, Digikam::DImg::load(), m_destFile, m_file, Digikam::Matrix::matrix(), Digikam::MetaEngineRotation::NoTransformation, Digikam::SafeTemporaryFile::open(), performJpegTransform(), Digikam::SafeTemporaryFile::safeFilePath(), Digikam::DImg::save(), Digikam::DImg::setAttribute(), Digikam::MetaEngine::sidecarPath(), Digikam::DImg::transform(), Digikam::MetaEngineRotation::transformations(), and updateMetadata().

exifTransform() [2/2]

bool Digikam::JPEGUtils::JpegRotator::exifTransform

(

TransformAction

action

)

Rotate the given image by the given TransformAction. The current orientation will be taken into account

References m_orientation, and Digikam::Matrix::matrix().

Referenced by autoExifTransform(), and Digikam::FileActionMngrFileWorker::transform().

performJpegTransform()

bool Digikam::JPEGUtils::JpegRotator::performJpegTransform ( TransformAction  action, const QString &  src, const QString &  dest  )

protected

Referenced by exifTransform().

setCurrentOrientation()

void Digikam::JPEGUtils::JpegRotator::setCurrentOrientation

(

MetaEngine::ImageOrientation

orientation

)

Per default, the orientation is read from the metadata of the file. You can override this value

References m_orientation.

Referenced by Digikam::FileActionMngrFileWorker::transform().

setDestinationFile()

void Digikam::JPEGUtils::JpegRotator::setDestinationFile

(

const QString &

dest

)

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

References m_destFile.

setDocumentName()

void Digikam::JPEGUtils::JpegRotator::setDocumentName

(

const QString &

documentName

)

Set the Exif document name of the destination file. Default value is the source's file name

References m_documentName.

updateMetadata()

void Digikam::JPEGUtils::JpegRotator::updateMetadata ( const QString &  fileName, const MetaEngineRotation &  matrix  )

protected

References Digikam::DFileOperations::copyModificationTime(), Digikam::MetaEngine::getExifThumbnail(), Digikam::MetaEngine::getItemPreview(), Digikam::MetaEngineSettings::instance(), m_file, m_metadata, m_originalSize, Digikam::Matrix::matrix(), Digikam::MetaEngine::ORIENTATION_NORMAL, Digikam::DMetadata::save(), Digikam::MetaEngine::setExifThumbnail(), Digikam::MetaEngine::setItemDimensions(), Digikam::MetaEngine::setItemOrientation(), Digikam::MetaEngine::setItemPreview(), and Digikam::MetaEngineRotation::toTransform().

Referenced by exifTransform().

Member Data Documentation

m_destFile

QString Digikam::JPEGUtils::JpegRotator::m_destFile

protected

Referenced by exifTransform(), and setDestinationFile().

m_documentName

QString Digikam::JPEGUtils::JpegRotator::m_documentName

protected

Referenced by JpegRotator(), and setDocumentName().

m_file

QString Digikam::JPEGUtils::JpegRotator::m_file

protected

Referenced by exifTransform(), and updateMetadata().

m_metadata

DMetadata* Digikam::JPEGUtils::JpegRotator::m_metadata

protected

Referenced by JpegRotator(), updateMetadata(), and ~JpegRotator().

m_orientation

MetaEngine::ImageOrientation Digikam::JPEGUtils::JpegRotator::m_orientation

protected

Referenced by exifTransform(), JpegRotator(), and setCurrentOrientation().

m_originalSize

QSize Digikam::JPEGUtils::JpegRotator::m_originalSize

protected

Referenced by updateMetadata().

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

• core/libs/jpegutils/jpegutils.h
• core/libs/jpegutils/jpegutils.cpp