UNDO_CMD Class Reference

Given some command, UNDO_CMD performs the reverse operation. More...

#include <command.H>

Inheritance diagram for UNDO_CMD:

[legend]Collaboration diagram for UNDO_CMD:

[legend]List of all members.

Public Member Functions
void	Own () const
void	Free () const
int	Lock ()
void	Unlock ()
int	Unique () const
Constructors
	UNDO_CMD (const COMMANDptr &c)
Protected Attributes
COMMANDptr	_cmd
bool	_is_done
	true if doit() was executed most recently.
bool	_is_undone
	true if undoit() was executed most recently.

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Detailed Description

Given some command, UNDO_CMD performs the reverse operation.

Definition at line 140 of file command.H.

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Constructor & Destructor Documentation

UNDO_CMD::UNDO_CMD (  const COMMANDptr &  c  )  [inline]

Definition at line 147 of file command.H.

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Member Function Documentation

bool UNDO_CMD::clear (   )  [virtual]

After doit() and undoit() were called, restore things to the way they were before (may be a no-op for most derived classes). Reimplemented from COMMAND. Definition at line 53 of file command.C. References _cmd, and COMMAND::clear().

UNDO_CMD::DEFINE_RTTI_METHODS3 (  "UNDO_CMD"  , UNDO_CMD *  , COMMAND  , CCOMMAND *  )

COMMAND::DEFINE_RTTI_METHODS_BASE (  "COMMAND"  , CCOMMAND *  )  [inherited]

bool UNDO_CMD::doit (   )  [virtual]

Execute the command. Returns: true on success. If the command is already done, this is a no-op and still returns true. Reimplemented from COMMAND. Definition at line 37 of file command.C. References _cmd, and COMMAND::doit().

void REFcounter::Free (   )  const [inline, inherited]

Definition at line 76 of file ref.H. References REFcounter::_mutex, REFcounter::_u, and REF_ME.

bool COMMAND::is_clear (   )  const [inline, inherited]

Neither doit() nor undoit() have been called. Definition at line 91 of file command.H. References COMMAND::_is_done, and COMMAND::_is_undone.

bool COMMAND::is_done (   )  const [inline, inherited]

doit() was called most recently. Definition at line 94 of file command.H. References COMMAND::_is_done. Referenced by COMMAND::clear().

bool COMMAND::is_undone (   )  const [inline, inherited]

undoit() was called most recently, after doit(). Definition at line 97 of file command.H. References COMMAND::_is_undone.

int REFcounter::Lock (   )  [inline, inherited]

Definition at line 105 of file ref.H. References REFcounter::_mutex, and REFcounter::_u. Referenced by REFlock::REFlock().

void REFcounter::Own (   )  const [inline, inherited]

Definition at line 59 of file ref.H. References REFcounter::_mutex, REFcounter::_u, and REF_ME.

virtual void UNDO_CMD::print (   )  const [inline, virtual]

Reimplemented from COMMAND. Definition at line 170 of file command.H. References _cmd.

bool UNDO_CMD::undoit (   )  [virtual]

Undo the command. Returns: true on success. If the command is already undone, this is a no-op and still returns true. Reimplemented from COMMAND. Definition at line 45 of file command.C. References _cmd, and COMMAND::undoit().

int REFcounter::Unique (   )  const [inline, inherited]

Definition at line 115 of file ref.H. References REFcounter::_mutex, and REFcounter::_u.

void REFcounter::Unlock (   )  [inline, inherited]

Definition at line 111 of file ref.H. References REFcounter::_mutex, and REFcounter::_u. Referenced by REFlock::~REFlock().

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Member Data Documentation

COMMANDptr UNDO_CMD::_cmd [protected]

Definition at line 180 of file command.H. Referenced by clear(), doit(), print(), and undoit().

bool COMMAND::_is_done [protected, inherited]

true if doit() was executed most recently. Definition at line 129 of file command.H. Referenced by COMMAND::clear(), COMMAND::doit(), COMMAND::is_clear(), COMMAND::is_done(), and COMMAND::undoit().

bool COMMAND::_is_undone [protected, inherited]

true if undoit() was executed most recently. Definition at line 130 of file command.H. Referenced by COMMAND::clear(), COMMAND::doit(), COMMAND::is_clear(), COMMAND::is_undone(), and COMMAND::undoit().

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

• command.H
• command.C

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