Wt::WDoubleValidator Class Reference

A validator for validating floating point user input. More...

#include <Wt/WDoubleValidator>

Inheritance diagram for Wt::WDoubleValidator:

[legend]

List of all members.

Public Member Functions
	WDoubleValidator (WObject *parent=0)
	Create a new double validator that accepts any double.
	WDoubleValidator (double minimum, double maximum, WObject *parent=0)
	Create a new double validator that accepts double within the given range.
double	bottom () const
	Return the bottom of the valid double range.
void	setBottom (double bottom)
	Set the bottom of the valid double range.
double	top () const
	Return the top of the valid double range.
void	setTop (double top)
	Set the top of the valid double range.
virtual void	setRange (double bottom, double top)
	Set the range of valid doubles.
virtual State	validate (WString &input, int &pos) const
	Validate the given input.
virtual void	createExtConfig (std::ostream &config) const
	Provide Ext-compatible config options for client-side validation.
void	setInvalidNotANumberText (const WString &text)
	Set the message to display when the input is not a number.
WString	invalidNotANumberText () const
	Returns the message displayed when the input is not a number.
void	setInvalidTooSmallText (const WString &text)
	Set message to display when the number is too small.
WString	invalidTooSmallText () const
	Returns the message displayed when the number is too small.
void	setInvalidTooLargeText (const WString &text)
	Set message to display when the number is too large.
WString	invalidTooLargeText () const
	Returns the message displayed when the number is too large.
Protected Member Functions
std::string	javaScriptValidate (const std::string &jsRef) const
	Creates a Javascript expression that validates the input.

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Detailed Description

A validator for validating floating point user input.

This validator checks whether user input is a double in the pre-defined range.

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Member Function Documentation

double Wt::WDoubleValidator::bottom

(

)

const [inline]

Return the bottom of the valid double range.

The default value is -stdnumeric_limits<int>::max().

void Wt::WDoubleValidator::setTop

(

double

top

)

Set the top of the valid double range.

The default value is std::numeric_limits<int>::max().

WValidator::State Wt::WDoubleValidator::validate	(	WString &	input,
		int &	pos
	)			const [virtual]

Validate the given input.

The input is considered valid only when it is blank for a non-mandatory field, or represents a double within the valid range.

Reimplemented from Wt::WValidator.

void Wt::WDoubleValidator::setInvalidNotANumberText

(

const WString &

text

)

Set the message to display when the input is not a number.

The default value is "Must be a number."

WString Wt::WDoubleValidator::invalidNotANumberText

(

)

const

Returns the message displayed when the input is not a number.

See also:

setInvalidNotANumberText(const WString&)

void Wt::WDoubleValidator::setInvalidTooSmallText

(

const WString &

text

)

Set message to display when the number is too small.

Depending on whether bottom() and top() are real bounds, the default message is "The number must be between {1} and {2}" or "The number must be larger than {1}".

WString Wt::WDoubleValidator::invalidTooSmallText

(

)

const

Returns the message displayed when the number is too small.

See also:

setInvalidTooSmallText(const WString&)

void Wt::WDoubleValidator::setInvalidTooLargeText

(

const WString &

text

)

Set message to display when the number is too large.

Depending on whether bottom() and top() are real bounds, the default message is "The number must be between {1} and {2}" or "The number must be smaller than {2}".

WString Wt::WDoubleValidator::invalidTooLargeText

(

)

const

Returns the message displayed when the number is too large.

See also:

setInvalidTooLargeText(const WString&)

std::string Wt::WDoubleValidator::javaScriptValidate

(

const std::string &

jsRef

)

const [protected, virtual]

Creates a Javascript expression that validates the input.

The JavaScript expression should evaluate to an object with two fields: a boolean valid, and a message that indicates the problem if not valid.

Return an empty string if you are not provide the client-side validation.

See also:

inputFilter()

Reimplemented from Wt::WValidator.