tqt3/doc/man/man3/tqdoublevalidator.3qt

'\" t
.TH TQDoubleValidator 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
.\" Copyright 1992-2007 Trolltech ASA.  All rights reserved.  See the
.\" license file included in the distribution for a complete license
.\" statement.
.\"
.ad l
.nh
.SH NAME
TQDoubleValidator \- Range checking of floating-point numbers
.SH SYNOPSIS
\fC#include <tqvalidator.h>\fR
.PP
Inherits TQValidator.
.PP
.SS "Public Members"
.in +1c
.ti -1c
.BI "\fBTQDoubleValidator\fR ( TQObject * parent, const char * name = 0 )"
.br
.ti -1c
.BI "\fBTQDoubleValidator\fR ( double bottom, double top, int decimals, TQObject * parent, const char * name = 0 )"
.br
.ti -1c
.BI "\fB~TQDoubleValidator\fR ()"
.br
.ti -1c
.BI "virtual TQValidator::State \fBvalidate\fR ( TQString & input, int & ) const"
.br
.ti -1c
.BI "virtual void \fBsetRange\fR ( double minimum, double maximum, int decimals = 0 )"
.br
.ti -1c
.BI "void \fBsetBottom\fR ( double )"
.br
.ti -1c
.BI "void \fBsetTop\fR ( double )"
.br
.ti -1c
.BI "void \fBsetDecimals\fR ( int )"
.br
.ti -1c
.BI "double \fBbottom\fR () const"
.br
.ti -1c
.BI "double \fBtop\fR () const"
.br
.ti -1c
.BI "int \fBdecimals\fR () const"
.br
.in -1c
.SS "Properties"
.in +1c
.ti -1c
.BI "double \fBbottom\fR - the validator's minimum acceptable value"
.br
.ti -1c
.BI "int \fBdecimals\fR - the validator's maximum number of digits after the decimal point"
.br
.ti -1c
.BI "double \fBtop\fR - the validator's maximum acceptable value"
.br
.in -1c
.SH DESCRIPTION
The TQDoubleValidator class provides range checking of floating-point numbers.
.PP
TQDoubleValidator 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.
.PP
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.
.PP
See also TQIntValidator, TQRegExpValidator, and Miscellaneous Classes.
.SH MEMBER FUNCTION DOCUMENTATION
.SH "TQDoubleValidator::TQDoubleValidator ( TQObject * parent, const char * name = 0 )"
Constructs a validator object with parent \fIparent\fR, called \fIname\fR, which accepts any double.
.SH "TQDoubleValidator::TQDoubleValidator ( double bottom, double top, int decimals, TQObject * parent, const char * name = 0 )"
Constructs a validator object with parent \fIparent\fR, called \fIname\fR. This validator will accept doubles from \fIbottom\fR to \fItop\fR inclusive, with up to \fIdecimals\fR digits after the decimal point.
.SH "TQDoubleValidator::~TQDoubleValidator ()"
Destroys the validator, freeing any resources used.
.SH "double TQDoubleValidator::bottom () const"
Returns the validator's minimum acceptable value. See the "bottom" property for details.
.SH "int TQDoubleValidator::decimals () const"
Returns the validator's maximum number of digits after the decimal point. See the "decimals" property for details.
.SH "void TQDoubleValidator::setBottom ( double )"
Sets the validator's minimum acceptable value. See the "bottom" property for details.
.SH "void TQDoubleValidator::setDecimals ( int )"
Sets the validator's maximum number of digits after the decimal point. See the "decimals" property for details.
.SH "void TQDoubleValidator::setRange ( double minimum, double maximum, int decimals = 0 )\fC [virtual]\fR"
Sets the validator to accept doubles from \fIminimum\fR to \fImaximum\fR inclusive, with at most \fIdecimals\fR digits after the decimal point.
.SH "void TQDoubleValidator::setTop ( double )"
Sets the validator's maximum acceptable value. See the "top" property for details.
.SH "double TQDoubleValidator::top () const"
Returns the validator's maximum acceptable value. See the "top" property for details.
.SH "TQValidator::State TQDoubleValidator::validate ( TQString & input, int & ) const\fC [virtual]\fR"
Returns Acceptable if the string \fIinput\fR contains a double that is within the valid range and is in the correct format.
.PP
Returns Intermediate if \fIinput\fR 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.
.PP
Returns Invalid if the \fIinput\fR is not a double.
.PP
Note: If the valid range consists of just positive doubles (e.g. 0.0 - 100.0) and \fIinput\fR is a negative double then Invalid is returned.
.PP
Reimplemented from TQValidator.
.SS "Property Documentation"
.SH "double bottom"
This property holds the validator's minimum acceptable value.
.PP
Set this property's value with setBottom() and get this property's value with bottom().
.PP
See also setRange().
.SH "int decimals"
This property holds the validator's maximum number of digits after the decimal point.
.PP
Set this property's value with setDecimals() and get this property's value with decimals().
.PP
See also setRange().
.SH "double top"
This property holds the validator's maximum acceptable value.
.PP
Set this property's value with setTop() and get this property's value with top().
.PP
See also setRange().

.SH "SEE ALSO"
.BR http://doc.trolltech.com/tqdoublevalidator.html
.BR http://www.trolltech.com/faq/tech.html
.SH COPYRIGHT
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
license file included in the distribution for a complete license
statement.
.SH AUTHOR
Generated automatically from the source code.
.SH BUGS
If you find a bug in Qt, please report it as described in
.BR http://doc.trolltech.com/bughowto.html .
Good bug reports help us to help you. Thank you.
.P
The definitive TQt documentation is provided in HTML format; it is
located at $TQTDIR/doc/html and can be read using TQt Assistant or with
a web browser. This man page is provided as a convenience for those
users who prefer man pages, although this format is not officially
supported by Trolltech. 
.P
If you find errors in this manual page, please report them to
.BR qt-bugs@trolltech.com .
Please include the name of the manual page (tqdoublevalidator.3qt) and the Qt
version (3.3.8).