Open CASCADE Technology  6.9.1
Public Member Functions | Protected Member Functions
TDF_AttributeDelta Class Referenceabstract

This class discribes the services we need to implement Delta and Undo/Redo services. More...

#include <TDF_AttributeDelta.hxx>

Inheritance diagram for TDF_AttributeDelta:
Inheritance graph
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Public Member Functions

virtual void Apply ()=0
 Applies the delta to the attribute. More...
 
TDF_Label Label () const
 Returns the label concerned by <me>. More...
 
Handle< TDF_AttributeAttribute () const
 Returns the reference attribute. More...
 
Standard_GUID ID () const
 Returns the ID of the attribute concerned by <me>. More...
 
virtual Standard_OStreamDump (Standard_OStream &OS) const
 Dumps the contents. More...
 
Standard_OStreamoperator<< (Standard_OStream &OS) const
 
- Public Member Functions inherited from MMgt_TShared
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual const Handle_Standard_Type & DynamicType () const
 Returns a type information object about this object. More...
 
Standard_Boolean IsInstance (const Handle_Standard_Type &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean IsKind (const 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. More...
 
Standard_Boolean IsKind (const Standard_CString 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. More...
 
virtual Handle_Standard_Transient This () const
 Returns a Handle which references this object. Must never be called to objects created in stack. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 

Protected Member Functions

 TDF_AttributeDelta (const Handle< TDF_Attribute > &anAttribute)
 

Detailed Description

This class discribes the services we need to implement Delta and Undo/Redo services.

AttributeDeltas are applied in an unpredictable order. But by the redefinition of the method IsNowApplicable, a condition can be verified before application. If the AttributeDelta is not yet applicable, it is put at the end of the AttributeDelta list, to be treated later. If a dead lock if found on the list, the AttributeDeltas are forced to be applied in an unpredictable order.

Constructor & Destructor Documentation

TDF_AttributeDelta::TDF_AttributeDelta ( const Handle< TDF_Attribute > &  anAttribute)
protected

Member Function Documentation

virtual void TDF_AttributeDelta::Apply ( )
pure virtual
Handle< TDF_Attribute > TDF_AttributeDelta::Attribute ( ) const

Returns the reference attribute.

virtual Standard_OStream& TDF_AttributeDelta::Dump ( Standard_OStream OS) const
virtual

Dumps the contents.

Standard_GUID TDF_AttributeDelta::ID ( ) const

Returns the ID of the attribute concerned by <me>.

TDF_Label TDF_AttributeDelta::Label ( ) const

Returns the label concerned by <me>.

Standard_OStream& TDF_AttributeDelta::operator<< ( Standard_OStream OS) const
inline

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