ChangeTracker Class Reference

Updates a variable when changes occur. More...

#include <changetracker.h>

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()
unsigned int	changeId () const
bool	hasBoolVar () const
bool	hasIntVar () const
const unsigned int &	intVar () const
	Don't call if !hasIntVar()
bool	isChanged () const
bool	set (const char *&, const char *&)
	specialization for C-strings
template<class T , class U >
bool	set (const T &oldval, const U &newval)
	returns wether this value is changed
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.

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

specialization 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