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<title>QDoubleValidator 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>QDoubleValidator Class Reference</h1>
<p>The QDoubleValidator class provides range checking of
floating-point numbers.
<a href="#details">More...</a>
<p><tt>#include <<a href="qvalidator-h.html">qvalidator.h</a>></tt>
<p>Inherits <a href="qvalidator.html">QValidator</a>.
<p><a href="qdoublevalidator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QDoubleValidator"><b>QDoubleValidator</b></a> ( QObject * parent, const char * name = 0 )</li>
<li class=fn><a href="#QDoubleValidator-2"><b>QDoubleValidator</b></a> ( double bottom, double top, int decimals, QObject * parent, const char * name = 0 )</li>
<li class=fn><a href="#~QDoubleValidator"><b>~QDoubleValidator</b></a> ()</li>
<li class=fn>virtual QValidator::State <a href="#validate"><b>validate</b></a> ( QString & 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 QDoubleValidator class provides range checking of
floating-point numbers.
<p>
<p> 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 <a href="qvalidator.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">QIntValidator</a>, <a href="qregexpvalidator.html">QRegExpValidator</a>, and <a href="misc.html">Miscellaneous Classes</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QDoubleValidator"></a>QDoubleValidator::QDoubleValidator ( <a href="qobject.html">QObject</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="QDoubleValidator-2"></a>QDoubleValidator::QDoubleValidator ( double bottom, double top, int decimals, <a href="qobject.html">QObject</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="~QDoubleValidator"></a>QDoubleValidator::~QDoubleValidator ()
</h3>
Destroys the validator, freeing any resources used.
<h3 class=fn>double <a name="bottom"></a>QDoubleValidator::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>QDoubleValidator::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>QDoubleValidator::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>QDoubleValidator::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>QDoubleValidator::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>QDoubleValidator::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>QDoubleValidator::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="qvalidator.html#State-enum">QValidator::State</a> <a name="validate"></a>QDoubleValidator::validate ( <a href="qstring.html">QString</a> & input, int & ) const<tt> [virtual]</tt>
</h3>
Returns <a href="qvalidator.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="qvalidator.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="qvalidator.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="qvalidator.html#validate">QValidator</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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