ChangeTracker Class Reference

Updates a variable when changes occur. More...

Public Member Functions
	ChangeTracker (bool &c)
	ChangeTracker (bool &c, unsigned int &ci)
	ChangeTracker (bool *c=0)
	ChangeTracker (unsigned int &c)
	ChangeTracker (unsigned int *c)
const bool &	boolVar () const
	Don't call if !hasBoolVar() More...
unsigned int	changeId () const
bool	hasBoolVar () const
bool	hasIntVar () const
const unsigned int &	intVar () const
	Don't call if !hasIntVar() More...
bool	isChanged () const
bool	set (const char *&, const char *&)
	specialisation for C-strings More...
template<class T , class U >
bool	set (const T &oldval, const U &newval)
	returns wether this value is changed More...
void	setChanged (bool yn=true)
void	setChangeId (unsigned int c)
void	setVar (bool &m)
void	setVar (bool *m)
void	setVar (unsigned int &m)
void	setVar (unsigned int *m)
template<class T , class U >
bool	update (T &val, const U &newval)
	Changes and returns wether this value is changed. More...

Protected Attributes
bool *	chgd_
unsigned int *	chgid_

Detailed Description

Updates a variable when changes occur.

Use if you need to keep track of whether a variable changes when it is assigned to another variable. Example: a 'not saved' flag in a UI. Also facilitates giving unique change stamps.

<>

Constructor & Destructor Documentation

ChangeTracker() [1/5]

ChangeTracker::ChangeTracker ( bool *  c = 0 )

inline

ChangeTracker() [2/5]

ChangeTracker::ChangeTracker ( bool &  c )

inline

ChangeTracker() [3/5]

ChangeTracker::ChangeTracker ( unsigned int &  c )

inline

ChangeTracker() [4/5]

ChangeTracker::ChangeTracker ( unsigned int *  c )

inline

ChangeTracker() [5/5]

ChangeTracker::ChangeTracker ( bool &  c, unsigned int &  ci  )

inline

Member Function Documentation

boolVar()

const bool& ChangeTracker::boolVar ( ) const

inline

Don't call if !hasBoolVar()

changeId()

unsigned int ChangeTracker::changeId ( ) const

inline

hasBoolVar()

bool ChangeTracker::hasBoolVar ( ) const

inline

hasIntVar()

bool ChangeTracker::hasIntVar ( ) const

inline

intVar()

const unsigned int& ChangeTracker::intVar ( ) const

inline

Don't call if !hasIntVar()

isChanged()

bool ChangeTracker::isChanged ( ) const

inline

set() [1/2]

bool ChangeTracker::set ( const char *&  val, const char *&  newval  )

inline

specialisation for C-strings

set() [2/2]

template<class T , class U >

bool ChangeTracker::set ( const T &  oldval, const U &  newval  )

inline

returns wether this value is changed

setChanged()

void ChangeTracker::setChanged ( bool  yn = true )

inline

setChangeId()

void ChangeTracker::setChangeId ( unsigned int  c )

inline

setVar() [1/4]

void ChangeTracker::setVar ( bool &  m )

inline

setVar() [2/4]

void ChangeTracker::setVar ( bool *  m )

inline

setVar() [3/4]

void ChangeTracker::setVar ( unsigned int &  m )

inline

setVar() [4/4]

void ChangeTracker::setVar ( unsigned int *  m )

inline

update()

template<class T , class U >

bool ChangeTracker::update ( T &  val, const U &  newval  )

inline

Changes and returns wether this value is changed.

Member Data Documentation

chgd_

bool* ChangeTracker::chgd_

protected

chgid_

unsigned int* ChangeTracker::chgid_

protected