Base::Observer< _MessageType > Class Template Reference

Observer class Implementation of the well known Observer Design Pattern. More...

#include <Observer.h>

Public Member Functions
virtual const char *	Name ()
	This method can be reimplemented from the concrete Observer and returns the name of the observer. More...
	Observer ()
	A constructor. More...
virtual void	OnChange (Subject< _MessageType > &rCaller, _MessageType rcReason)=0
	This method need to be reimplemented from the concrete Observer and get called by the observed class. More...
virtual void	OnDestroy (Subject< _MessageType > &rCaller)
	This method need to be reimplemented from the concrete Observer and get called by the observed class. More...
virtual	~Observer ()
	A destructor. More...

Detailed Description

template<class _MessageType>
class Base::Observer< _MessageType >

Observer class Implementation of the well known Observer Design Pattern.

The observed object, which inherit FCSubject, will call all its observers in case of changes. A observer class has to Attach itself to the observed object.

See also

FCSubject

Constructor & Destructor Documentation

Observer()

template<class _MessageType >

Base::Observer< _MessageType >::Observer

(

)

A constructor.

No special function so far.

~Observer()

template<class _MessageType >

virtual Base::Observer< _MessageType >::~Observer ( )

virtual

A destructor.

No special function so far.

Member Function Documentation

Name()

template<class _MessageType >

virtual const char * Base::Observer< _MessageType >::Name ( void  )

virtual

This method can be reimplemented from the concrete Observer and returns the name of the observer.

Needed to use the Get Method of the Subject.

OnChange()

template<class _MessageType >

virtual void Base::Observer< _MessageType >::OnChange ( Subject< _MessageType > &  rCaller, _MessageType  rcReason  )

pure virtual

This method need to be reimplemented from the concrete Observer and get called by the observed class.

Parameters

rCaller	a reference to the calling object
rcReason

Implemented in Gui::StatefulLabel, Gui::MacroManager, FemGui::ViewProviderFemPostObject, InspectionGui::ViewProviderInspection, and MeshGui::ViewProviderMeshCurvature.

OnDestroy()

template<class _MessageType >

virtual void Base::Observer< _MessageType >::OnDestroy ( Subject< _MessageType > &  rCaller )

virtual

This method need to be reimplemented from the concrete Observer and get called by the observed class.

Parameters

rCaller

a reference to the calling object

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

• FreeCAD/src/Base/Observer.h