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QIntValidator Class Reference
^{[QtGui module]}

The QIntValidator class provides a validator that ensures a string contains a valid integer within a specified range. More...

Inherits QValidator.

Methods

• __init__ (self, QObject parent)
• __init__ (self, int bottom, int top, QObject parent)
• int bottom (self)
• setBottom (self, int)
• setRange (self, int bottom, int top)
• setTop (self, int)
• int top (self)
• (QValidator.State, int) validate (self, QString, int)

 QValidator *validator = new QIntValidator(100, 999, this);
 QLineEdit *edit = new QLineEdit(this);

 // the edit lineedit will only accept integers between 100 and 999
 edit->setValidator(validator);

 QString str;
 int pos = 0;
 QIntValidator v(100, 999, this);

 str = "1";
 v.validate(str, pos);     // returns Intermediate
 str = "12";
 v.validate(str, pos);     // returns Intermediate

 str = "123";
 v.validate(str, pos);     // returns Acceptable
 str = "678";
 v.validate(str, pos);     // returns Acceptable

 str = "1234";
 v.validate(str, pos);     // returns Invalid
 str = "-123";
 v.validate(str, pos);     // returns Invalid
 str = "abc";
 v.validate(str, pos);     // returns Invalid
 str = "12cm";
 v.validate(str, pos);     // returns Invalid

The minimum and maximum values are set in one call with setRange(), or individually with setBottom() and setTop().

QIntValidator uses its locale() to interpret the number. For example, in Arabic locales, QIntValidator will accept Arabic digits. In addition, QIntValidator is always guaranteed to accept a number formatted according to the "C" locale.

See also QDoubleValidator, QRegExpValidator, and Line Edits Example.

Method Documentation

QIntValidator.__init__ (self, QObject parent)

The parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a validator with a parent object that accepts all integers.

QIntValidator.__init__ (self, int bottom, int top, QObject parent)

The parent argument, if not None, causes self to be owned by Qt instead of PyQt.

Constructs a validator with a parent, that accepts integers from minimum to maximum inclusive.

int QIntValidator.bottom (self)

QIntValidator.setBottom (self, int)

QIntValidator.setRange (self, int bottom, int top)

Sets the range of the validator to only accept integers between bottom and top inclusive.

QIntValidator.setTop (self, int)

int QIntValidator.top (self)

(QValidator.State, int) QIntValidator.validate (self, QString, int)

Returns Acceptable if the input is an integer within the valid range, Intermediate if the input is an integer outside the valid range and Invalid if the input is not an integer.

Note: If the valid range consists of just positive integers (e.g. 32 to 100) and input is a negative integer then Invalid is returned. If input has a greater number of digits than an integer in the valid range can have, Invalid is returned.

 int pos = 0;

 s = "abc";
 v.validate(s, pos);    // returns Invalid

 s = "5";
 v.validate(s, pos);    // returns Intermediate

 s = "50";
 v.validate(s, pos);    // returns Acceptable

By default, the pos parameter is not used by this validator.

Reimplemented from QValidator.