Command Class Reference

The abstract parent class of all the command classes. Commands are non-copyable. More...

#include <command.h>

Inheritance diagram for Command:

List of all members.

Public Member Functions
virtual	~Command ()
	Destructor.
Protected Member Functions
	Command ()
	The default constructor.
virtual void	execute ()=0
	Executes the command.
bool	hasUndo () const
	Returns true if the command has an undo function.
virtual void	undo ()=0
	Undos the command.
Protected Attributes
bool	has_undo_
	a flag indicates whether the command has an undo function.
Private Member Functions
	Command (const Command &)
	Copy Constructor - object is non-copyable.
Command &	operator= (const Command &)
	Equal Operator - object is non-copyable.
Friends
class	CommandQueue

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Detailed Description

The abstract parent class of all the command classes. Commands are non-copyable.

Definition at line 49 of file command.h.

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Constructor & Destructor Documentation

virtual Command::~Command

(

)

[inline, virtual]

Destructor.

Definition at line 53 of file command.h.

Command::Command

(

)

[inline, protected]

The default constructor.

Derived commands are assumed to have undo by default. Each is free to override this.

Definition at line 65 of file command.h.

Command::Command

(

const Command &

)

[inline, private]

Copy Constructor - object is non-copyable.

Definition at line 92 of file command.h.

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Member Function Documentation

virtual void Command::execute

(

)

[protected, pure virtual]

Executes the command.

Implemented in CopyCommand, DenoiseCommand, PasteCommand, TransformCommand, CutCommand, and DeleteCommand.

bool Command::hasUndo

(

)

const [inline, protected]

Returns true if the command has an undo function.

Definition at line 72 of file command.h.

Command& Command::operator=

(

const Command &

)

[inline, private]

Equal Operator - object is non-copyable.

Definition at line 99 of file command.h.

virtual void Command::undo

(

)

[protected, pure virtual]

Undos the command.

Implemented in CopyCommand, DenoiseCommand, CutCommand, PasteCommand, TransformCommand, and DeleteCommand.

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Friends And Related Function Documentation

friend class CommandQueue [friend]

Allows command queues to be the only objects which are able to execute commands.

Definition at line 60 of file command.h.

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Member Data Documentation

bool Command::has_undo_ [protected]

a flag indicates whether the command has an undo function.

Definition at line 88 of file command.h.

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

• command.h