Referencia de la Clase QDoubleValidator

The QDoubleValidator class provides range checking of floating-point numbers. Más...

#include <qvalidator.h>

Diagrama de herencias de QDoubleValidator

Lista de todos los miembros.

Métodos públicos
	QDoubleValidator (QObject *parent, const char *name=0)
	QDoubleValidator (double bottom, double top, int decimals, QObject *parent, const char *name=0)
	~QDoubleValidator ()
QValidator::State	validate (QString &, int &) const
virtual void	setRange (double bottom, double top, int decimals=0)
void	setBottom (double)
void	setTop (double)
void	setDecimals (int)
double	bottom () const
double	top () const
int	decimals () const
	QDoubleValidator (QObject *parent, const char *name=0)
	QDoubleValidator (double bottom, double top, int decimals, QObject *parent, const char *name=0)
	~QDoubleValidator ()
QValidator::State	validate (QString &, int &) const
virtual void	setRange (double bottom, double top, int decimals=0)
void	setBottom (double)
void	setTop (double)
void	setDecimals (int)
double	bottom () const
double	top () const
int	decimals () const
Propiedades
double	bottom
	the validator's minimum acceptable value
double	top
	the validator's maximum acceptable value
int	decimals
	the validator's maximum number of digits after the decimal point

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Descripción detallada

The QDoubleValidator class provides range checking of floating-point numbers.

QDoubleValidator provides an upper bound, a lower bound and a limit on the number of digits after the decimal point. It does not provide a fixup() function.

You can set the acceptable range in one call with setRange(), or with setBottom() and setTop(). Set the number of decimal places with setDecimals(). The validate() function returns the validation state.

Ver también:

QIntValidator QRegExpValidator

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Documentación del constructor y destructor

QDoubleValidator::QDoubleValidator	(	QObject *	parent,
		const char *	name = 0
	)

Constructs a validator object with parent parent, called name, which accepts any double.

QDoubleValidator::QDoubleValidator	(	double	bottom,
		double	top,
		int	decimals,
		QObject *	parent,
		const char *	name = 0
	)

Constructs a validator object with parent parent, called name. This validator will accept doubles from bottom to top inclusive, with up to decimals digits after the decimal point.

QDoubleValidator::~QDoubleValidator

(

)

Destroys the validator, freeing any resources used.

QDoubleValidator::QDoubleValidator	(	QObject *	parent,
		const char *	name = 0
	)

QDoubleValidator::QDoubleValidator	(	double	bottom,
		double	top,
		int	decimals,
		QObject *	parent,
		const char *	name = 0
	)

QDoubleValidator::~QDoubleValidator

(

)

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Documentación de las funciones miembro

double QDoubleValidator::bottom

(

)

const [inline]

double QDoubleValidator::bottom

(

)

const [inline]

int QDoubleValidator::decimals

(

)

const [inline]

int QDoubleValidator::decimals

(

)

const [inline]

void QDoubleValidator::setBottom

(

double

)

void QDoubleValidator::setBottom

(

double

bottom

)

void QDoubleValidator::setDecimals

(

int

decimals

)

void QDoubleValidator::setDecimals

(

int

)

void QDoubleValidator::setRange	(	double	minimum,
		double	maximum,
		int	decimals = 0
	)		[virtual]

Sets the validator to accept doubles from minimum to maximum inclusive, with at most decimals digits after the decimal point.

virtual void QDoubleValidator::setRange	(	double	bottom,
		double	top,
		int	decimals = 0
	)		[virtual]

void QDoubleValidator::setTop

(

double

top

)

void QDoubleValidator::setTop

(

double

)

double QDoubleValidator::top

(

void

)

const [inline]

double QDoubleValidator::top

(

void

)

const [inline]

QValidator::State QDoubleValidator::validate	(	QString &	input,
		int &
	)		const [virtual]

Returns Acceptable if the string input contains a double that is within the valid range and is in the correct format.

Returns Intermediate if input contains a double that is outside the range or is in the wrong format, e.g. with too many digits after the decimal point or is empty.

Returns Invalid if the input is not a double.

Note: If the valid range consists of just positive doubles (e.g. 0.0 - 100.0) and input is a negative double then Invalid is returned.

Implementa QValidator.

Reimplementado en FLDoubleValidator.

QValidator::State QDoubleValidator::validate	(	QString &	input,
		int &	pos
	)		const [virtual]

This pure virtual function returns Invalid if input is invalid according to this validator's rules, Intermediate if it is likely that a little more editing will make the input acceptable (e.g. the user types '4' into a widget which accepts integers between 10 and 99) and Acceptable if the input is valid.

The function can change input and pos (the cursor position) if it wants to.

Implementa QValidator.

Reimplementado en FLDoubleValidator.

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Documentación de propiedades

double QDoubleValidator::bottom [read, write]

the validator's minimum acceptable value

Ver también:

setRange()

int QDoubleValidator::decimals [read, write]

the validator's maximum number of digits after the decimal point

Ver también:

setRange()

double QDoubleValidator::top [read, write]

the validator's maximum acceptable value

Ver también:

setRange()

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La documentación para esta clase fue generada a partir de los siguientes ficheros:

• src/qt/include/qvalidator.h
• src/qt/src/widgets/qvalidator.h
• src/qt/src/widgets/qvalidator.cpp