TDocStd_Document Class Reference

The contents of a TDocStd_Application, a document is a container for a data framework composed of labels and attributes. As such, TDocStd_Document is the entry point into the data framework. To gain access to the data, you create a document as follows: occ::handle<TDocStd_Document> MyDF = new TDocStd_Document The document also allows you to manage: More...

#include <TDocStd_Document.hxx>

Inheritance diagram for TDocStd_Document:

Public Member Functions
	TDocStd_Document (const TCollection_ExtendedString &astorageformat)
	Constructs a document object defined by the string astorageformat. If a document is created outside of an application using this constructor, it must be managed by a Handle. Otherwise memory problems could appear: call of TDocStd_Owner::GetDocument creates a occ::handle<TDocStd_Document>, so, releasing it will produce a crash.
bool	IsSaved () const
	the document is saved in a file.
bool	IsChanged () const
	returns True if document differs from the state of last saving. this method have to be called only working in the transaction mode
void	SetSaved ()
	This method have to be called to show document that it has been saved.
void	SetSavedTime (const int theTime)
	Say to document what it is not saved. Use value, returned earlier by GetSavedTime().
int	GetSavedTime () const
	Returns value of <mySavedTime> to be used later in SetSavedTime().
TCollection_ExtendedString	GetName () const
	raise if <me> is not saved.
TCollection_ExtendedString	GetPath () const
	returns the OS path of the file, in which one <me> is saved. Raise an exception if <me> is not saved.
void	SetData (const occ::handle< TDF_Data > &datadata)
occ::handle< TDF_Data >	GetData () const
TDF_Label	Main () const
	Returns the main label in this data framework. By definition, this is the label with the entry 0:1.
bool	IsEmpty () const
	Returns True if the main label has no attributes.
bool	IsValid () const
	Returns False if the document has been modified but not recomputed.
void	SetModified (const TDF_Label &L)
	Notify the label as modified, the Document becomes UnValid. returns True if <L> has been notified as modified.
void	PurgeModified ()
	Remove all modifications. After this call The document becomesagain Valid.
const NCollection_Map< TDF_Label > &	GetModified () const
	Returns the labels which have been modified in this document.
void	NewCommand ()
	Launches a new command. This command may be undone.
bool	HasOpenCommand () const
	returns True if a Command transaction is open in the current .
void	OpenCommand ()
	Opens a new command transaction in this document. You can use HasOpenCommand to see whether a command is already open. Exceptions Standard_DomainError if a command is already open in this document.
bool	CommitCommand ()
	Commits documents transactions and fills the transaction manager with documents that have been changed during the transaction. If no command transaction is open, nothing is done. Returns True if a new delta has been added to myUndos.
void	AbortCommand ()
	Abort the Command transaction. Does nothing If there is no Command transaction open.
int	GetUndoLimit () const
	The current limit on the number of undos.
void	SetUndoLimit (const int L)
	Set the limit on the number of Undo Delta stored 0 will disable Undo on the document A negative value means no limit. Note that by default Undo is disabled. Enabling it will take effect with the next call to NewCommand. Of course this limit is the same for Redo.
void	ClearUndos ()
	Remove all stored Undos and Redos.
void	ClearRedos ()
	Remove all stored Redos.
int	GetAvailableUndos () const
	Returns the number of undos stored in this document. If this figure is greater than 0, the method Undo can be used.
bool	Undo ()
	Will UNDO one step, returns False if no undo was done (Undos == 0). Otherwise, true is returned and one step in the list of undoes is undone.
int	GetAvailableRedos () const
	Returns the number of redos stored in this document. If this figure is greater than 0, the method Redo can be used.
bool	Redo ()
	Will REDO one step, returns False if no redo was done (Redos == 0). Otherwise, true is returned, and one step in the list of redoes is done again.
const NCollection_List< occ::handle< TDF_Delta > > &	GetUndos () const
const NCollection_List< occ::handle< TDF_Delta > > &	GetRedos () const
void	RemoveFirstUndo ()
	Removes the first undo in the list of document undos. It is used in the application when the undo limit is exceed.
bool	InitDeltaCompaction ()
	Initializes the procedure of delta compaction Returns false if there is no delta to compact Marks the last delta as a "from" delta.
bool	PerformDeltaCompaction ()
	Performs the procedure of delta compaction Makes all deltas starting from "from" delta till the last one to be one delta.
void	UpdateReferences (const TCollection_AsciiString &aDocEntry)
	Set modifications on labels impacted by external references to the entry. The document becomes invalid and must be recomputed.
void	Recompute ()
	Recompute if the document was not valid and propagate the recorded modification.
void	Update (const occ::handle< CDM_Document > &aToDocument, const int aReferenceIdentifier, void *const aModifContext) override
	This method Update will be called to signal the end of the modified references list. The document should be recomputed and UpdateFromDocuments should be called. Update should returns True in case of success, false otherwise. In case of Failure, additional information can be given in ErrorString.
TCollection_ExtendedString	StorageFormat () const override
	The Storage Format is the key which is used to determine in the application resources the storage driver plugin, the file extension and other data used to store the document.
void	SetEmptyLabelsSavingMode (const bool isAllowed)
	Sets saving mode for empty labels. If true, empty labels will be saved.
bool	EmptyLabelsSavingMode () const
	Returns saving mode for empty labels.
virtual void	ChangeStorageFormat (const TCollection_ExtendedString &newStorageFormat)
	methods for the nested transaction mode
void	SetNestedTransactionMode (const bool isAllowed=true)
	Sets nested transaction mode if isAllowed == true.
bool	IsNestedTransactionMode () const
	Returns true if mode is set.
void	SetModificationMode (const bool theTransactionOnly)
	if theTransactionOnly is True changes is denied outside transactions
bool	ModificationMode () const
	returns True if changes allowed only inside transactions
virtual void	BeforeClose ()
	Prepares document for closing.
TDocStd_FormatVersion	StorageFormatVersion () const
	Returns version of the format to be used to store the document.
void	ChangeStorageFormatVersion (const TDocStd_FormatVersion theVersion)
	Sets version of the format to be used to store the document.
void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const
	Dumps the content of me into the stream.
Public Member Functions inherited from CDM_Document
virtual bool	Update (TCollection_ExtendedString &ErrorString)
	This method Update will be called to signal the end of the modified references list. The document should be recomputed and UpdateFromDocuments should be called. Update should returns True in case of success, false otherwise. In case of Failure, additional information can be given in ErrorString.
virtual void	Extensions (NCollection_Sequence< TCollection_ExtendedString > &Extensions) const
	by default empties the extensions.
virtual bool	GetAlternativeDocument (const TCollection_ExtendedString &aFormat, occ::handle< CDM_Document > &anAlternativeDocument)
	This method can be redefined to extract another document in a different format. For example, to extract a Shape from an applicative document.
int	CreateReference (const occ::handle< CDM_Document > &anOtherDocument)
	Creates a reference from this document to {anOtherDocument}. Returns a reference identifier. This reference identifier is unique in the document and will not be used for the next references, even after the storing of the document. If there is already a reference between the two documents, the reference is not created, but its reference identifier is returned.
void	RemoveReference (const int aReferenceIdentifier)
	Removes the reference between the From Document and the To Document identified by a reference identifier.
void	RemoveAllReferences ()
	Removes all references having this document for From Document.
occ::handle< CDM_Document >	Document (const int aReferenceIdentifier) const
	Returns the To Document of the reference identified by aReferenceIdentifier. If the ToDocument is stored and has not yet been retrieved, this method will retrieve it.
bool	IsInSession (const int aReferenceIdentifier) const
	returns True if the To Document of the reference identified by aReferenceIdentifier is in session, False if it corresponds to a not yet retrieved document.
bool	IsStored (const int aReferenceIdentifier) const
	returns True if the To Document of the reference identified by aReferenceIdentifier has already been stored, False otherwise.
TCollection_ExtendedString	Name (const int aReferenceIdentifier) const
	returns the name of the metadata of the To Document of the reference identified by aReferenceIdentifier.
void	UpdateFromDocuments (void *const aModifContext) const
	call virtual method Update on all referencing documents. This method keeps the list of the documents to process. It may be the starting of an update cycle. If not, the reentrant calls made by Update method (without argument) will append the referencing documents to the list and call the Update method (with arguments). Only the first call to UpdateFromDocuments generate call to Update().
int	ToReferencesNumber () const
	returns the number of references having this document as From Document.
int	FromReferencesNumber () const
	returns the number of references having this document as To Document.
bool	ShallowReferences (const occ::handle< CDM_Document > &aDocument) const
	returns True is this document references aDocument;
bool	DeepReferences (const occ::handle< CDM_Document > &aDocument) const
	returns True is this document references aDocument;
int	CopyReference (const occ::handle< CDM_Document > &aFromDocument, const int aReferenceIdentifier)
	Copies a reference to this document. This method avoid retrieval of referenced document. The arguments are the original document and a valid reference identifier Returns the local identifier.
bool	IsReadOnly () const
	indicates that this document cannot be modified.
bool	IsReadOnly (const int aReferenceIdentifier) const
	indicates that the referenced document cannot be modified,
void	SetIsReadOnly ()
void	UnsetIsReadOnly ()
void	Modify ()
	Indicates that this document has been modified. This method increments the modification counter.
int	Modifications () const
	returns the current modification counter.
void	UnModify ()
bool	IsUpToDate (const int aReferenceIdentifier) const
	returns true if the modification counter found in the given reference is equal to the actual modification counter of the To Document. This method is able to deal with a reference to a not retrieved document.
void	SetIsUpToDate (const int aReferenceIdentifier)
	Resets the modification counter in the given reference to the actual modification counter of its To Document. This method should be called after the application has updated this document.
void	SetComment (const TCollection_ExtendedString &aComment)
	associates a comment with this document.
void	AddComment (const TCollection_ExtendedString &aComment)
	appends a comment into comments of this document.
void	SetComments (const NCollection_Sequence< TCollection_ExtendedString > &aComments)
	associates a comments with this document.
void	Comments (NCollection_Sequence< TCollection_ExtendedString > &aComments) const
	returns the associated comments through <aComments>. Returns empty sequence if no comments are associated.
const char16_t *	Comment () const
	Returns the first of associated comments. By default the comment is an empty string.
bool	IsStored () const
int	StorageVersion () const
	returns the value of the modification counter at the time of storage. By default returns 0.
void	SetMetaData (const occ::handle< CDM_MetaData > &aMetaData)
	associates database information to a document which has been stored. The name of the document is now the name which has beenused to store the data.
void	UnsetIsStored ()
occ::handle< CDM_MetaData >	MetaData () const
TCollection_ExtendedString	Folder () const
void	SetRequestedFolder (const TCollection_ExtendedString &aFolder)
	defines the folder in which the object should be stored.
TCollection_ExtendedString	RequestedFolder () const
bool	HasRequestedFolder () const
void	SetRequestedName (const TCollection_ExtendedString &aName)
	defines the name under which the object should be stored.
TCollection_ExtendedString	RequestedName ()
	Determines under which the document is going to be store. By default the name of the document will be used. If the document has no name its presentation will be used.
void	SetRequestedPreviousVersion (const TCollection_ExtendedString &aPreviousVersion)
void	UnsetRequestedPreviousVersion ()
bool	HasRequestedPreviousVersion () const
TCollection_ExtendedString	RequestedPreviousVersion () const
void	SetRequestedComment (const TCollection_ExtendedString &aComment)
	defines the Comment with which the object should be stored.
TCollection_ExtendedString	RequestedComment () const
void	LoadResources ()
	read (or rereads) the following resource.
bool	FindFileExtension ()
TCollection_ExtendedString	FileExtension ()
	gets the Desktop.Domain.Application.FileFormat.FileExtension resource.
bool	FindDescription ()
TCollection_ExtendedString	Description ()
	gets the FileFormat.Description resource.
bool	IsModified () const
	returns true if the version is greater than the storage version
Standard_OStream &	Print (Standard_OStream &anOStream) const
Standard_OStream &	operator<< (Standard_OStream &anOStream)
bool	IsOpened () const
void	Open (const occ::handle< CDM_Application > &anApplication)
CDM_CanCloseStatus	CanClose () const
void	Close ()
const occ::handle< CDM_Application > &	Application () const
virtual bool	CanCloseReference (const occ::handle< CDM_Document > &aDocument, const int aReferenceIdentifier) const
	A referenced document may indicate through this virtual method that it does not allow the closing of aDocument which it references through the reference aReferenceIdentifier. By default returns true.
virtual void	CloseReference (const occ::handle< CDM_Document > &aDocument, const int aReferenceIdentifier)
	A referenced document may update its internal data structure when {aDocument} which it references through the reference {aReferenceIdentifier} is being closed. By default this method does nothing.
bool	IsOpened (const int aReferenceIdentifier) const
	returns true if the document corresponding to the given reference has been retrieved and opened. Otherwise returns false. This method does not retrieve the referenced document
void	CreateReference (const occ::handle< CDM_MetaData > &aMetaData, const int aReferenceIdentifier, const occ::handle< CDM_Application > &anApplication, const int aToDocumentVersion, const bool UseStorageConfiguration)
int	CreateReference (const occ::handle< CDM_MetaData > &aMetaData, const occ::handle< CDM_Application > &anApplication, const int aDocumentVersion, const bool UseStorageConfiguration)
int	ReferenceCounter () const
virtual void	Update ()
	the following method should be used instead:
occ::handle< CDM_Reference >	Reference (const int aReferenceIdentifier) const
void	SetModifications (const int Modifications)
void	SetReferenceCounter (const int aReferenceCounter)
void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const
	Dumps the content of me into the stream.
Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.
	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.
Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.
virtual	~Standard_Transient ()=default
	Destructor must be virtual.
virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.
bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.
bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.
bool	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
bool	IsKind (const char *const theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.
Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
int	GetRefCount () const noexcept
	Get the reference counter of this object.
void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.
int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.
virtual void	Delete () const
	Memory deallocator for transient classes.

Static Public Member Functions
static occ::handle< TDocStd_Document >	Get (const TDF_Label &L)
	Will Abort any execution, clear fields returns the document which contains <L>. raises an exception if the document is not found.
static TDocStd_FormatVersion	CurrentStorageFormatVersion ()
	Returns current storage format version of the document.
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.
static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Protected Member Functions
virtual bool	CommitTransaction ()
	Returns true done.
virtual void	AbortTransaction ()
virtual void	OpenTransaction ()
	methods for protection of changes outside transactions
Protected Member Functions inherited from CDM_Document
	CDM_Document ()
	~CDM_Document () override

Protected Attributes
TCollection_ExtendedString	myStorageFormat
NCollection_List< occ::handle< TDF_Delta > >	myUndos
NCollection_List< occ::handle< TDF_Delta > >	myRedos
Protected Attributes inherited from CDM_Document
bool	myResourcesAreLoaded

Additional Inherited Members
typedef void	base_type
	Returns a type descriptor about this object.

Detailed Description

The contents of a TDocStd_Application, a document is a container for a data framework composed of labels and attributes. As such, TDocStd_Document is the entry point into the data framework. To gain access to the data, you create a document as follows: occ::handle<TDocStd_Document> MyDF = new TDocStd_Document The document also allows you to manage:

• modifications, providing Undo and Redo functions.
• command transactions. Warning: The only data saved is the framework (TDF_Data)

Constructor & Destructor Documentation

TDocStd_Document()

TDocStd_Document::TDocStd_Document

(

const TCollection_ExtendedString &

astorageformat

)

Constructs a document object defined by the string astorageformat. If a document is created outside of an application using this constructor, it must be managed by a Handle. Otherwise memory problems could appear: call of TDocStd_Owner::GetDocument creates a occ::handle<TDocStd_Document>, so, releasing it will produce a crash.

Member Function Documentation

AbortCommand()

void TDocStd_Document::AbortCommand

(

)

Abort the Command transaction. Does nothing If there is no Command transaction open.

AbortTransaction()

virtual void TDocStd_Document::AbortTransaction ( )

protectedvirtual

BeforeClose()

virtual void TDocStd_Document::BeforeClose ( )

virtual

Prepares document for closing.

ChangeStorageFormat()

virtual void TDocStd_Document::ChangeStorageFormat ( const TCollection_ExtendedString & newStorageFormat )

virtual

methods for the nested transaction mode

ChangeStorageFormatVersion()

void TDocStd_Document::ChangeStorageFormatVersion

(

const TDocStd_FormatVersion

theVersion

)

Sets version of the format to be used to store the document.

ClearRedos()

void TDocStd_Document::ClearRedos

(

)

Remove all stored Redos.

ClearUndos()

void TDocStd_Document::ClearUndos

(

)

Remove all stored Undos and Redos.

CommitCommand()

bool TDocStd_Document::CommitCommand

(

)

Commits documents transactions and fills the transaction manager with documents that have been changed during the transaction. If no command transaction is open, nothing is done. Returns True if a new delta has been added to myUndos.

CommitTransaction()

virtual bool TDocStd_Document::CommitTransaction ( )

protectedvirtual

Returns true done.

CurrentStorageFormatVersion()

TDocStd_FormatVersion TDocStd_Document::CurrentStorageFormatVersion ( )

static

Returns current storage format version of the document.

DumpJson()

void TDocStd_Document::DumpJson	(	Standard_OStream &	theOStream,
		int	theDepth = -1 ) const

Dumps the content of me into the stream.

EmptyLabelsSavingMode()

bool TDocStd_Document::EmptyLabelsSavingMode

(

)

const

Returns saving mode for empty labels.

Get()

occ::handle< TDocStd_Document > TDocStd_Document::Get ( const TDF_Label & L )

static

Will Abort any execution, clear fields returns the document which contains <L>. raises an exception if the document is not found.

GetAvailableRedos()

int TDocStd_Document::GetAvailableRedos

(

)

const

Returns the number of redos stored in this document. If this figure is greater than 0, the method Redo can be used.

GetAvailableUndos()

int TDocStd_Document::GetAvailableUndos

(

)

const

Returns the number of undos stored in this document. If this figure is greater than 0, the method Undo can be used.

GetData()

occ::handle< TDF_Data > TDocStd_Document::GetData

(

)

const

GetModified()

const NCollection_Map< TDF_Label > & TDocStd_Document::GetModified

(

)

const

Returns the labels which have been modified in this document.

GetName()

TCollection_ExtendedString TDocStd_Document::GetName

(

)

const

raise if <me> is not saved.

GetPath()

TCollection_ExtendedString TDocStd_Document::GetPath

(

)

const

returns the OS path of the file, in which one <me> is saved. Raise an exception if <me> is not saved.

GetRedos()

const NCollection_List< occ::handle< TDF_Delta > > & TDocStd_Document::GetRedos

(

)

const

GetSavedTime()

int TDocStd_Document::GetSavedTime

(

)

const

Returns value of <mySavedTime> to be used later in SetSavedTime().

GetUndoLimit()

int TDocStd_Document::GetUndoLimit

(

)

const

The current limit on the number of undos.

GetUndos()

const NCollection_List< occ::handle< TDF_Delta > > & TDocStd_Document::GetUndos

(

)

const

HasOpenCommand()

bool TDocStd_Document::HasOpenCommand

(

)

const

returns True if a Command transaction is open in the current .

InitDeltaCompaction()

bool TDocStd_Document::InitDeltaCompaction

(

)

Initializes the procedure of delta compaction Returns false if there is no delta to compact Marks the last delta as a "from" delta.

IsChanged()

bool TDocStd_Document::IsChanged

(

)

const

returns True if document differs from the state of last saving. this method have to be called only working in the transaction mode

IsEmpty()

bool TDocStd_Document::IsEmpty

(

)

const

Returns True if the main label has no attributes.

IsNestedTransactionMode()

bool TDocStd_Document::IsNestedTransactionMode

(

)

const

Returns true if mode is set.

IsSaved()

bool TDocStd_Document::IsSaved

(

)

const

the document is saved in a file.

IsValid()

bool TDocStd_Document::IsValid

(

)

const

Returns False if the document has been modified but not recomputed.

Main()

TDF_Label TDocStd_Document::Main

(

)

const

Returns the main label in this data framework. By definition, this is the label with the entry 0:1.

ModificationMode()

bool TDocStd_Document::ModificationMode

(

)

const

returns True if changes allowed only inside transactions

NewCommand()

void TDocStd_Document::NewCommand

(

)

Launches a new command. This command may be undone.

OpenCommand()

void TDocStd_Document::OpenCommand

(

)

Opens a new command transaction in this document. You can use HasOpenCommand to see whether a command is already open. Exceptions Standard_DomainError if a command is already open in this document.

OpenTransaction()

virtual void TDocStd_Document::OpenTransaction ( )

protectedvirtual

methods for protection of changes outside transactions

PerformDeltaCompaction()

bool TDocStd_Document::PerformDeltaCompaction

(

)

Performs the procedure of delta compaction Makes all deltas starting from "from" delta till the last one to be one delta.

PurgeModified()

void TDocStd_Document::PurgeModified

(

)

Remove all modifications. After this call The document becomesagain Valid.

Recompute()

void TDocStd_Document::Recompute

(

)

Recompute if the document was not valid and propagate the recorded modification.

Redo()

bool TDocStd_Document::Redo

(

)

Will REDO one step, returns False if no redo was done (Redos == 0). Otherwise, true is returned, and one step in the list of redoes is done again.

RemoveFirstUndo()

void TDocStd_Document::RemoveFirstUndo

(

)

Removes the first undo in the list of document undos. It is used in the application when the undo limit is exceed.

SetData()

void TDocStd_Document::SetData

(

const occ::handle< TDF_Data > &

data

)

SetEmptyLabelsSavingMode()

void TDocStd_Document::SetEmptyLabelsSavingMode

(

const bool

isAllowed

)

Sets saving mode for empty labels. If true, empty labels will be saved.

SetModificationMode()

void TDocStd_Document::SetModificationMode

(

const bool

theTransactionOnly

)

if theTransactionOnly is True changes is denied outside transactions

SetModified()

void TDocStd_Document::SetModified

(

const TDF_Label &

L

)

Notify the label as modified, the Document becomes UnValid. returns True if <L> has been notified as modified.

SetNestedTransactionMode()

void TDocStd_Document::SetNestedTransactionMode

(

const bool

isAllowed = true

)

Sets nested transaction mode if isAllowed == true.

SetSaved()

void TDocStd_Document::SetSaved

(

)

This method have to be called to show document that it has been saved.

SetSavedTime()

void TDocStd_Document::SetSavedTime

(

const int

theTime

)

Say to document what it is not saved. Use value, returned earlier by GetSavedTime().

SetUndoLimit()

void TDocStd_Document::SetUndoLimit

(

const int

L

)

Set the limit on the number of Undo Delta stored 0 will disable Undo on the document A negative value means no limit. Note that by default Undo is disabled. Enabling it will take effect with the next call to NewCommand. Of course this limit is the same for Redo.

StorageFormat()

TCollection_ExtendedString TDocStd_Document::StorageFormat ( ) const

overridevirtual

The Storage Format is the key which is used to determine in the application resources the storage driver plugin, the file extension and other data used to store the document.

Implements CDM_Document.

StorageFormatVersion()

TDocStd_FormatVersion TDocStd_Document::StorageFormatVersion

(

)

const

Returns version of the format to be used to store the document.

Undo()

bool TDocStd_Document::Undo

(

)

Will UNDO one step, returns False if no undo was done (Undos == 0). Otherwise, true is returned and one step in the list of undoes is undone.

Update()

void TDocStd_Document::Update ( const occ::handle< CDM_Document > & aToDocument, const int aReferenceIdentifier, void *const aModifContext )

overridevirtual

This method Update will be called to signal the end of the modified references list. The document should be recomputed and UpdateFromDocuments should be called. Update should returns True in case of success, false otherwise. In case of Failure, additional information can be given in ErrorString.

Update the document by propagation

Update the document from internal stored modifications. If you want to undoing this operation, please call NewCommand before.

to change format (advanced programming)

Reimplemented from CDM_Document.

UpdateReferences()

void TDocStd_Document::UpdateReferences

(

const TCollection_AsciiString &

aDocEntry

)

Set modifications on labels impacted by external references to the entry. The document becomes invalid and must be recomputed.

Field Documentation

myRedos

NCollection_List<occ::handle<TDF_Delta> > TDocStd_Document::myRedos

protected

myStorageFormat

TCollection_ExtendedString TDocStd_Document::myStorageFormat

protected

myUndos

NCollection_List<occ::handle<TDF_Delta> > TDocStd_Document::myUndos

protected

---

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

• TDocStd_Document.hxx