e57::BlobNodeImpl Class Reference

#include <BlobNodeImpl.h>

Public Member Functions
	BlobNodeImpl (ImageFileImplWeakPtr destImageFile, int64_t byteCount)
	BlobNodeImpl (ImageFileImplWeakPtr destImageFile, int64_t fileOffset, int64_t length)
int64_t	byteCount ()
void	checkLeavesInSet (const StringSet &pathNames, NodeImplSharedPtr origin) override
bool	isDefined (const ustring &pathName) override
bool	isTypeEquivalent (NodeImplSharedPtr ni) override
void	read (uint8_t *buf, int64_t start, size_t count)
NodeType	type () const override
void	write (uint8_t *buf, int64_t start, size_t count)
void	writeXml (ImageFileImplSharedPtr imf, CheckedFile &cf, int indent, const char *forcedFieldName=nullptr) override
	~BlobNodeImpl () override=default
Public Member Functions inherited from e57::NodeImpl
void	checkBuffers (const std::vector< SourceDestBuffer > &sdbufs, bool allowMissing)
void	checkImageFileOpen (const char *srcFileName, int srcLineNumber, const char *srcFunctionName) const
virtual void	checkLeavesInSet (const StringSet &pathNames, NodeImplSharedPtr origin)=0
ImageFileImplSharedPtr	destImageFile ()
ustring	elementName () const
bool	findTerminalPosition (const NodeImplSharedPtr &target, uint64_t &countFromLeft)
virtual NodeImplSharedPtr	get (const ustring &pathName)
ustring	imageFileName () const
bool	isAttached () const
virtual bool	isDefined (const ustring &pathName)=0
bool	isRoot () const
bool	isTypeConstrained ()
virtual bool	isTypeEquivalent (NodeImplSharedPtr ni)=0
NodeImplSharedPtr	parent ()
ustring	pathName () const
ustring	relativePathName (const NodeImplSharedPtr &origin, ustring childPathName=ustring()) const
virtual void	set (const StringList &fields, unsigned level, NodeImplSharedPtr ni, bool autoPathCreate=false)
virtual void	set (const ustring &pathName, NodeImplSharedPtr ni, bool autoPathCreate=false)
virtual void	setAttachedRecursive ()
void	setParent (NodeImplSharedPtr parent, const ustring &elementName)
virtual NodeType	type () const =0
virtual void	writeXml (ImageFileImplSharedPtr imf, CheckedFile &cf, int indent, const char *forcedFieldName=nullptr)=0
virtual	~NodeImpl ()=default

Additional Inherited Members
Protected Member Functions inherited from e57::NodeImpl
NodeImplSharedPtr	getRoot ()
virtual NodeImplSharedPtr	lookup (const ustring &)
	NodeImpl (ImageFileImplWeakPtr destImageFile)
NodeImpl &	operator= (NodeImpl &n)
Protected Attributes inherited from e57::NodeImpl
ImageFileImplWeakPtr	destImageFile_
ustring	elementName_
bool	isAttached_
NodeImplWeakPtr	parent_

Constructor & Destructor Documentation

BlobNodeImpl() [1/2]

e57::BlobNodeImpl::BlobNodeImpl	(	ImageFileImplWeakPtr	destImageFile,
		int64_t	byteCount
	)

This what caller thinks blob length is

Round segment length up to multiple of 4 bytes

Reserve space for blob in file, extend with zeros since writes will happen at later time by caller

Prepare BlobSectionHeader

Write header at beginning of section

References byteCount(), e57::NodeImpl::destImageFile(), and e57::BlobSectionHeader::sectionLogicalLength.

BlobNodeImpl() [2/2]

e57::BlobNodeImpl::BlobNodeImpl	(	ImageFileImplWeakPtr	destImageFile,
		int64_t	fileOffset,
		int64_t	length
	)

Init blob object that already exists in E57 file currently reading.

Init state from values read from XML

References e57::NodeImpl::destImageFile().

~BlobNodeImpl()

e57::BlobNodeImpl::~BlobNodeImpl ( )

overridedefault

Member Function Documentation

byteCount()

int64_t e57::BlobNodeImpl::byteCount

(

)

References e57::NodeImpl::checkImageFileOpen().

Referenced by BlobNodeImpl().

checkLeavesInSet()

void e57::BlobNodeImpl::checkLeavesInSet ( const StringSet &  pathNames, NodeImplSharedPtr  origin  )

overridevirtual

We are a leaf node, so verify that we are listed in set. ???true for blobs? what exception get if try blob in compressedvector?

Implements e57::NodeImpl.

References e57::E57_ERROR_NO_BUFFER_FOR_ELEMENT, e57::NodeImpl::pathName(), and e57::NodeImpl::relativePathName().

isDefined()

bool e57::BlobNodeImpl::isDefined ( const ustring &  pathName )

overridevirtual

We have no sub-structure, so if path not empty return false

Implements e57::NodeImpl.

References e57::NodeImpl::pathName().

isTypeEquivalent()

bool e57::BlobNodeImpl::isTypeEquivalent ( NodeImplSharedPtr  ni )

overridevirtual

Same node type?

Downcast to shared_ptr<BlobNodeImpl>

blob lengths must match

ignore blob contents, doesn't have to match

Types match

Implements e57::NodeImpl.

References e57::E57_BLOB.

read()

void e57::BlobNodeImpl::read	(	uint8_t *	buf,
		int64_t	start,
		size_t	count
	)

References e57::NodeImpl::checkImageFileOpen(), e57::NodeImpl::destImageFile_, e57::E57_ERROR_BAD_API_ARGUMENT, e57::NodeImpl::pathName(), and e57::toString().

Referenced by gzip_utf8.GzipFile::readline(), and gzip_utf8.GzipFile::seek().

type()

NodeType e57::BlobNodeImpl::type ( ) const

overridevirtual

Implements e57::NodeImpl.

References e57::E57_BLOB.

Referenced by ArchProfile.ProfileTaskPanel::accept(), and ArchProfile.ProfileTaskPanel::retranslateUi().

write()

void e57::BlobNodeImpl::write	(	uint8_t *	buf,
		int64_t	start,
		size_t	count
	)

References e57::NodeImpl::checkImageFileOpen(), e57::NodeImpl::destImageFile(), e57::NodeImpl::destImageFile_, e57::E57_ERROR_BAD_API_ARGUMENT, e57::E57_ERROR_FILE_IS_READ_ONLY, e57::E57_ERROR_NODE_UNATTACHED, e57::NodeImpl::isAttached(), e57::NodeImpl::pathName(), and e57::toString().

Referenced by gzip_utf8.GzipFile::seek().

writeXml()

void e57::BlobNodeImpl::writeXml ( ImageFileImplSharedPtr  imf, CheckedFile &  cf, int  indent, const char *  forcedFieldName = nullptr  )

overridevirtual

Implements e57::NodeImpl.

References e57::NodeImpl::elementName_, e57::CheckedFile::logicalToPhysical(), and e57::space().

---

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

• FreeCAD/src/3rdParty/libE57Format/src/BlobNodeImpl.h
• FreeCAD/src/3rdParty/libE57Format/src/BlobNodeImpl.cpp