Open CASCADE Technology  7.3.1.dev
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 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 void Delete () const
 Memory deallocator for transient classes. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::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 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. 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...
 
Standard_TransientThis () 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. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. More...
 

Protected Member Functions

 TDF_AttributeDelta (const Handle< TDF_Attribute > &anAttribute)
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 

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

Member Function Documentation

◆ Apply()

virtual void TDF_AttributeDelta::Apply ( )
pure virtual

◆ Attribute()

Handle< TDF_Attribute > TDF_AttributeDelta::Attribute ( ) const

Returns the reference attribute.

◆ Dump()

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

Dumps the contents.

◆ ID()

Standard_GUID TDF_AttributeDelta::ID ( ) const

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

◆ Label()

TDF_Label TDF_AttributeDelta::Label ( ) const

Returns the label concerned by <me>.

◆ operator<<()

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

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