QDoubleValidator(3qt)QDoubleValidator(3qt)NAME
QDoubleValidator - Range checking of floating-point
numbers
#include <qvalidator.h>
Inherits QValidator.
Public Members
QDoubleValidator ( QWidget * parent, const char * name = 0
)
QDoubleValidator ( double bottom, double top, int
decimals, QWidget * 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
Properties
Type Name READ WRITE Options
-----------------------------------------------------
double bottom bottom setBottom
double top top setTop
int decimals decimals setDecimals
DESCRIPTION
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.
See also QIntValidator.
MEMBER FUNCTION DOCUMENTATIONQDoubleValidator::QDoubleValidator ( QWidget * parent, const char
* name = 0 )
Constructs a validator object which accepts all doubles.
QDoubleValidator::QDoubleValidator ( double bottom, double top,
int decimals, QWidget * parent, const char * name = 0 )
Constructs a validator object which accepts all doubles
from bottom up to and including top with at most decimals
digits after the decimal point.
Trolltech AS 13 June 2001 1
QDoubleValidator(3qt)QDoubleValidator(3qt)QDoubleValidator::~QDoubleValidator ()
Destroys the validator, freeing any storage and other
resources used.
double QDoubleValidator::bottom () const
Returns the lowest valid number according to this
validator.
See also top(), decimals() and setRange().
int QDoubleValidator::decimals () const
Returns the largest number of digits a valid number can
have after its decimal point.
See also bottom(), top() and setRange().
void QDoubleValidator::setBottom ( double bottom )
Sets the validator to accept no numbers smaller than
bottom.
See also setRange().
void QDoubleValidator::setDecimals ( int decimals )
Sets the maximum number of digits after the decimal point.
void QDoubleValidator::setRange ( double bottom, double top, int
decimals = 0 ) [virtual]
Sets the validator to accept numbers from bottom up to and
including top with at most decimals digits after the
decimal point.
void QDoubleValidator::setTop ( double top )
Sets the validator to accept no numbers bigger than top.
See also setRange().
double QDoubleValidator::top () const
Returns the highest valid number according to this
validator.
See also bottom(), decimals() and setRange().
QValidator::State QDoubleValidator::validate( QString & input,
int & ) const
Returns Acceptable if input contains a number in the legal
range and format, Intermediate if it contains another
number, a number with too many digits after the decimal
point or is empty, and Invalid if input is not a number.
SEE ALSO
http://doc.trolltech.com/qdoublevalidator.html
http://www.trolltech.com/faq/tech.html
Trolltech AS 13 June 2001 2
QDoubleValidator(3qt)QDoubleValidator(3qt)COPYRIGHT
Copyright 1992-2001 Trolltech AS,
http://www.trolltech.com. See the license file included
in the distribution for a complete license statement.
AUTHOR
Generated automatically from the source code.
BUGS
If you find a bug in Qt, please report it as described in
http://doc.trolltech.com/bughowto.html. Good bug reports
make our job much simpler. Thank you.
In case of content or formattting problems with this
manual page, please report them to qt-bugs@trolltech.com.
Please include the name of the manual page
(qdoublevalidator.3qt) and the Qt version (2.3.1).
Trolltech AS 13 June 2001 3
