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< title > TQDoubleValidator Class< / title >
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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQDoubleValidator Class Reference< / h1 >
< p > The TQDoubleValidator class provides range checking of
floating-point numbers.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qvalidator-h.html" > ntqvalidator.h< / a > > < / tt >
< p > Inherits < a href = "ntqvalidator.html" > TQValidator< / a > .
< p > < a href = "qdoublevalidator-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQDoubleValidator" > < b > TQDoubleValidator< / b > < / a > ( TQObject * parent, const char * name = 0 )< / li >
< li class = fn > < a href = "#TQDoubleValidator-2" > < b > TQDoubleValidator< / b > < / a > ( double bottom, double top, int decimals, TQObject * parent, const char * name = 0 )< / li >
< li class = fn > < a href = "#~TQDoubleValidator" > < b > ~TQDoubleValidator< / b > < / a > ()< / li >
< li class = fn > virtual TQValidator::State < a href = "#validate" > < b > validate< / b > < / a > ( TQString & input, int & ) const< / li >
< li class = fn > virtual void < a href = "#setRange" > < b > setRange< / b > < / a > ( double minimum, double maximum, int decimals = 0 )< / li >
< li class = fn > void < a href = "#setBottom" > < b > setBottom< / b > < / a > ( double )< / li >
< li class = fn > void < a href = "#setTop" > < b > setTop< / b > < / a > ( double )< / li >
< li class = fn > void < a href = "#setDecimals" > < b > setDecimals< / b > < / a > ( int )< / li >
< li class = fn > double < a href = "#bottom" > < b > bottom< / b > < / a > () const< / li >
< li class = fn > double < a href = "#top" > < b > top< / b > < / a > () const< / li >
< li class = fn > int < a href = "#decimals" > < b > decimals< / b > < / a > () const< / li >
< / ul >
< h2 > Properties< / h2 >
< ul >
< li class = fn > double < a href = "#bottom-prop" > < b > bottom< / b > < / a > - the validator's minimum acceptable value< / li >
< li class = fn > int < a href = "#decimals-prop" > < b > decimals< / b > < / a > - the validator's maximum number of digits after the decimal point< / li >
< li class = fn > double < a href = "#top-prop" > < b > top< / b > < / a > - the validator's maximum acceptable value< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
< p > The TQDoubleValidator class provides range checking of
floating-point numbers.
< p >
< p > 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 < a href = "ntqvalidator.html#fixup" > fixup< / a > () function.
< p > You can set the acceptable range in one call with < a href = "#setRange" > setRange< / a > (), or
with < a href = "#setBottom" > setBottom< / a > () and < a href = "#setTop" > setTop< / a > (). Set the number of decimal places
with < a href = "#setDecimals" > setDecimals< / a > (). The < a href = "#validate" > validate< / a > () function returns the validation
state.
< p > < p > See also < a href = "qintvalidator.html" > TQIntValidator< / a > , < a href = "qregexpvalidator.html" > TQRegExpValidator< / a > , and < a href = "misc.html" > Miscellaneous Classes< / a > .
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQDoubleValidator" > < / a > TQDoubleValidator::TQDoubleValidator ( < a href = "ntqobject.html" > TQObject< / a > * parent, const char * name = 0 )
< / h3 >
Constructs a validator object with parent < em > parent< / em > , called < em > name< / em > , which accepts any double.
< h3 class = fn > < a name = "TQDoubleValidator-2" > < / a > TQDoubleValidator::TQDoubleValidator ( double bottom, double top, int decimals, < a href = "ntqobject.html" > TQObject< / a > * parent, const char * name = 0 )
< / h3 >
Constructs a validator object with parent < em > parent< / em > , called < em > name< / em > . This validator will accept doubles from < em > bottom< / em > to < em > top< / em >
inclusive, with up to < em > decimals< / em > digits after the decimal point.
< h3 class = fn > < a name = "~TQDoubleValidator" > < / a > TQDoubleValidator::~TQDoubleValidator ()
< / h3 >
Destroys the validator, freeing any resources used.
< h3 class = fn > double < a name = "bottom" > < / a > TQDoubleValidator::bottom () const
< / h3 > < p > Returns the validator's minimum acceptable value.
See the < a href = "qdoublevalidator.html#bottom-prop" > "bottom"< / a > property for details.
< h3 class = fn > int < a name = "decimals" > < / a > TQDoubleValidator::decimals () const
< / h3 > < p > Returns the validator's maximum number of digits after the decimal point.
See the < a href = "qdoublevalidator.html#decimals-prop" > "decimals"< / a > property for details.
< h3 class = fn > void < a name = "setBottom" > < / a > TQDoubleValidator::setBottom ( double )
< / h3 > < p > Sets the validator's minimum acceptable value.
See the < a href = "qdoublevalidator.html#bottom-prop" > "bottom"< / a > property for details.
< h3 class = fn > void < a name = "setDecimals" > < / a > TQDoubleValidator::setDecimals ( int )
< / h3 > < p > Sets the validator's maximum number of digits after the decimal point.
See the < a href = "qdoublevalidator.html#decimals-prop" > "decimals"< / a > property for details.
< h3 class = fn > void < a name = "setRange" > < / a > TQDoubleValidator::setRange ( double minimum, double maximum, int decimals = 0 )< tt > [virtual]< / tt >
< / h3 >
Sets the validator to accept doubles from < em > minimum< / em > to < em > maximum< / em >
inclusive, with at most < em > decimals< / em > digits after the decimal
point.
< h3 class = fn > void < a name = "setTop" > < / a > TQDoubleValidator::setTop ( double )
< / h3 > < p > Sets the validator's maximum acceptable value.
See the < a href = "qdoublevalidator.html#top-prop" > "top"< / a > property for details.
< h3 class = fn > double < a name = "top" > < / a > TQDoubleValidator::top () const
< / h3 > < p > Returns the validator's maximum acceptable value.
See the < a href = "qdoublevalidator.html#top-prop" > "top"< / a > property for details.
< h3 class = fn > < a href = "ntqvalidator.html#State-enum" > TQValidator::State< / a > < a name = "validate" > < / a > TQDoubleValidator::validate ( < a href = "ntqstring.html" > TQString< / a > & input, int & ) const< tt > [virtual]< / tt >
< / h3 >
Returns < a href = "ntqvalidator.html#State-enum" > Acceptable< / a > if the string < em > input< / em > contains a double
that is within the valid range and is in the correct format.
< p > Returns < a href = "ntqvalidator.html#State-enum" > Intermediate< / a > if < em > input< / em > 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.
< p > Returns < a href = "ntqvalidator.html#State-enum" > Invalid< / a > if the < em > input< / em > is not a double.
< p > Note: If the valid range consists of just positive doubles (e.g. 0.0 - 100.0)
and < em > input< / em > is a negative double then Invalid is returned.
< p > Reimplemented from < a href = "ntqvalidator.html#validate" > TQValidator< / a > .
< hr > < h2 > Property Documentation< / h2 >
< h3 class = fn > double < a name = "bottom-prop" > < / a > bottom< / h3 >
< p > This property holds the validator's minimum acceptable value.
< p > Set this property's value with < a href = "#setBottom" > setBottom< / a > () and get this property's value with < a href = "#bottom" > bottom< / a > ().
< p > < p > See also < a href = "#setRange" > setRange< / a > ().
< h3 class = fn > int < a name = "decimals-prop" > < / a > decimals< / h3 >
< p > This property holds the validator's maximum number of digits after the decimal point.
< p > Set this property's value with < a href = "#setDecimals" > setDecimals< / a > () and get this property's value with < a href = "#decimals" > decimals< / a > ().
< p > < p > See also < a href = "#setRange" > setRange< / a > ().
< h3 class = fn > double < a name = "top-prop" > < / a > top< / h3 >
< p > This property holds the validator's maximum acceptable value.
< p > Set this property's value with < a href = "#setTop" > setTop< / a > () and get this property's value with < a href = "#top" > top< / a > ().
< p > < p > See also < a href = "#setRange" > setRange< / a > ().
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