Wt
3.2.3
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A validator for validating floating point user input. More...
#include <Wt/WDoubleValidator>
Public Member Functions | |
WDoubleValidator (WObject *parent=0) | |
Creates a new double validator that accepts any double. | |
WDoubleValidator (double minimum, double maximum, WObject *parent=0) | |
Creates a new double validator that accepts double within the given range. | |
double | bottom () const |
Returns the bottom of the valid double range. | |
void | setBottom (double bottom) |
Sets the bottom of the valid double range. | |
double | top () const |
Returns the top of the valid double range. | |
void | setTop (double top) |
Sets the top of the valid double range. | |
virtual void | setRange (double bottom, double top) |
Sets the range of valid doubles. | |
virtual Result | validate (const WString &input) const |
Validates the given input. | |
virtual void | createExtConfig (std::ostream &config) const |
Provides Ext-compatible config options for client-side validation. | |
void | setInvalidNotANumberText (const WString &text) |
Sets 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) |
Sets the 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) |
Sets the message to display when the number is too large. | |
WString | invalidTooLargeText () const |
Returns the message displayed when the number is too large. | |
virtual std::string | javaScriptValidate () const |
Creates a Javascript object that validates the input. |
A validator for validating floating point user input.
This validator checks whether user input is a double in the pre-defined range.
Usage example:
Wt::WLineEdit *lineEdit = new Wt::WLineEdit(this); Wt::WDoubleValidator *validator = new Wt::WDoubleValidator(); lineEdit->setValidator(validator); lineEdit->setText("13.42");
The strings used in this class can be translated by overriding the default values for the following localization keys: Wt.WDoubleValidator.NotANumber: Must be a number Wt.WDoubleValidator.TooSmall: The number must be larger than {1} Wt.WDoubleValidator.BadRange: The number must be in the range {1} to {2} Wt.WDoubleValidator.TooLarge: The number must be smaller than {1}
WString Wt::WDoubleValidator::invalidNotANumberText | ( | ) | const |
Returns the message displayed when the input is not a number.
WString Wt::WDoubleValidator::invalidTooLargeText | ( | ) | const |
Returns the message displayed when the number is too large.
WString Wt::WDoubleValidator::invalidTooSmallText | ( | ) | const |
Returns the message displayed when the number is too small.
std::string Wt::WDoubleValidator::javaScriptValidate | ( | ) | const [virtual] |
Creates a Javascript object that validates the input.
The JavaScript expression should evaluate to an object which contains a validate(text)
function, which returns an object that contains the following two fields:
message
that indicates the problem if not valid.Returns an empty string if the validator does not provide a client-side validation implementationq.
Reimplemented from Wt::WValidator.
void Wt::WDoubleValidator::setBottom | ( | double | bottom | ) |
Sets the bottom of the valid double range.
The default value is the minimum double value.
void Wt::WDoubleValidator::setInvalidNotANumberText | ( | const WString & | text | ) |
Sets the message to display when the input is not a number.
The default value is "Must be a number."
void Wt::WDoubleValidator::setInvalidTooLargeText | ( | const WString & | text | ) |
void Wt::WDoubleValidator::setInvalidTooSmallText | ( | const WString & | text | ) |
void Wt::WDoubleValidator::setTop | ( | double | top | ) |
Sets the top of the valid double range.
The default value is the maximum double value.
WValidator::Result Wt::WDoubleValidator::validate | ( | const WString & | input | ) | const [virtual] |
Validates 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.