UndoMutation Class Reference

#include "steam/control/command-mutation.hpp"

Description

Specialised version of the command Mutation functor, used to implement the UNDO functionality.

The operation executed when invoking this functor is the UNDO operation of the respective command; additionally we need another functor to capture the state to be restored on UNDO. Both functors are wired up internally to cooperate and store the state (memento), which is implemented by the specifically typed MementoTie object passed in on construction. All these specific details are concealed (erased) on the interface

Definition at line 108 of file command-mutation.hpp.

Public Member Functions
template<typename SIG , typename MEM >
	UndoMutation (MementoTie< SIG, MEM > &mementoHolder)
Mutation &	captureState (CmdClosure &clo)
Public Member Functions inherited from Mutation
template<typename SIG >
	Mutation (function< SIG > const &func)
void	operator() (CmdClosure &clo)

Private Attributes
Mutation	captureMemento_

Inheritance diagram for UndoMutation:

Collaboration diagram for UndoMutation:

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

• command-mutation.hpp