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152 lines
8.8 KiB
152 lines
8.8 KiB
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/widgets/qvalidator.cpp:348 -->
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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>
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<p>The TQDoubleValidator class provides range checking of
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floating-point numbers.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qvalidator-h.html">ntqvalidator.h</a>></tt>
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<p>Inherits <a href="ntqvalidator.html">TQValidator</a>.
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<p><a href="qdoublevalidator-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQDoubleValidator"><b>TQDoubleValidator</b></a> ( TQObject * parent, const char * name = 0 )</li>
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<li class=fn><a href="#TQDoubleValidator-2"><b>TQDoubleValidator</b></a> ( double bottom, double top, int decimals, TQObject * parent, const char * name = 0 )</li>
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<li class=fn><a href="#~TQDoubleValidator"><b>~TQDoubleValidator</b></a> ()</li>
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<li class=fn>virtual TQValidator::State <a href="#validate"><b>validate</b></a> ( TQString & input, int & ) const</li>
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<li class=fn>virtual void <a href="#setRange"><b>setRange</b></a> ( double minimum, double maximum, int decimals = 0 )</li>
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<li class=fn>void <a href="#setBottom"><b>setBottom</b></a> ( double )</li>
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<li class=fn>void <a href="#setTop"><b>setTop</b></a> ( double )</li>
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<li class=fn>void <a href="#setDecimals"><b>setDecimals</b></a> ( int )</li>
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<li class=fn>double <a href="#bottom"><b>bottom</b></a> () const</li>
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<li class=fn>double <a href="#top"><b>top</b></a> () const</li>
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<li class=fn>int <a href="#decimals"><b>decimals</b></a> () const</li>
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</ul>
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<h2>Properties</h2>
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<ul>
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<li class=fn>double <a href="#bottom-prop"><b>bottom</b></a> - the validator's minimum acceptable value</li>
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<li class=fn>int <a href="#decimals-prop"><b>decimals</b></a> - the validator's maximum number of digits after the decimal point</li>
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<li class=fn>double <a href="#top-prop"><b>top</b></a> - the validator's maximum acceptable value</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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<p> The TQDoubleValidator class provides range checking of
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floating-point numbers.
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<p>
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<p> TQDoubleValidator provides an upper bound, a lower bound and a
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limit on the number of digits after the decimal point. It does not
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provide a <a href="ntqvalidator.html#fixup">fixup</a>() function.
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<p> You can set the acceptable range in one call with <a href="#setRange">setRange</a>(), or
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with <a href="#setBottom">setBottom</a>() and <a href="#setTop">setTop</a>(). Set the number of decimal places
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with <a href="#setDecimals">setDecimals</a>(). The <a href="#validate">validate</a>() function returns the validation
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state.
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<p> <p>See also <a href="qintvalidator.html">TQIntValidator</a>, <a href="qregexpvalidator.html">TQRegExpValidator</a>, and <a href="misc.html">Miscellaneous Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn><a name="TQDoubleValidator"></a>TQDoubleValidator::TQDoubleValidator ( <a href="ntqobject.html">TQObject</a> * parent, const char * name = 0 )
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</h3>
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Constructs a validator object with parent <em>parent</em>, called <em>name</em>, which accepts any double.
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<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 )
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</h3>
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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>
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inclusive, with up to <em>decimals</em> digits after the decimal point.
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<h3 class=fn><a name="~TQDoubleValidator"></a>TQDoubleValidator::~TQDoubleValidator ()
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</h3>
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Destroys the validator, freeing any resources used.
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<h3 class=fn>double <a name="bottom"></a>TQDoubleValidator::bottom () const
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</h3><p>Returns the validator's minimum acceptable value.
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See the <a href="qdoublevalidator.html#bottom-prop">"bottom"</a> property for details.
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<h3 class=fn>int <a name="decimals"></a>TQDoubleValidator::decimals () const
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</h3><p>Returns the validator's maximum number of digits after the decimal point.
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See the <a href="qdoublevalidator.html#decimals-prop">"decimals"</a> property for details.
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<h3 class=fn>void <a name="setBottom"></a>TQDoubleValidator::setBottom ( double )
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</h3><p>Sets the validator's minimum acceptable value.
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See the <a href="qdoublevalidator.html#bottom-prop">"bottom"</a> property for details.
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<h3 class=fn>void <a name="setDecimals"></a>TQDoubleValidator::setDecimals ( int )
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</h3><p>Sets the validator's maximum number of digits after the decimal point.
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See the <a href="qdoublevalidator.html#decimals-prop">"decimals"</a> property for details.
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<h3 class=fn>void <a name="setRange"></a>TQDoubleValidator::setRange ( double minimum, double maximum, int decimals = 0 )<tt> [virtual]</tt>
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</h3>
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Sets the validator to accept doubles from <em>minimum</em> to <em>maximum</em>
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inclusive, with at most <em>decimals</em> digits after the decimal
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point.
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<h3 class=fn>void <a name="setTop"></a>TQDoubleValidator::setTop ( double )
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</h3><p>Sets the validator's maximum acceptable value.
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See the <a href="qdoublevalidator.html#top-prop">"top"</a> property for details.
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<h3 class=fn>double <a name="top"></a>TQDoubleValidator::top () const
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</h3><p>Returns the validator's maximum acceptable value.
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See the <a href="qdoublevalidator.html#top-prop">"top"</a> property for details.
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<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>
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</h3>
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Returns <a href="ntqvalidator.html#State-enum">Acceptable</a> if the string <em>input</em> contains a double
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that is within the valid range and is in the correct format.
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<p> Returns <a href="ntqvalidator.html#State-enum">Intermediate</a> if <em>input</em> contains a double that is
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outside the range or is in the wrong format, e.g. with too many
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digits after the decimal point or is empty.
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<p> Returns <a href="ntqvalidator.html#State-enum">Invalid</a> if the <em>input</em> is not a double.
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<p> Note: If the valid range consists of just positive doubles (e.g. 0.0 - 100.0)
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and <em>input</em> is a negative double then Invalid is returned.
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<p>Reimplemented from <a href="ntqvalidator.html#validate">TQValidator</a>.
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<hr><h2>Property Documentation</h2>
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<h3 class=fn>double <a name="bottom-prop"></a>bottom</h3>
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<p>This property holds the validator's minimum acceptable value.
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<p>Set this property's value with <a href="#setBottom">setBottom</a>() and get this property's value with <a href="#bottom">bottom</a>().
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<p><p>See also <a href="#setRange">setRange</a>().
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<h3 class=fn>int <a name="decimals-prop"></a>decimals</h3>
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<p>This property holds the validator's maximum number of digits after the decimal point.
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<p>Set this property's value with <a href="#setDecimals">setDecimals</a>() and get this property's value with <a href="#decimals">decimals</a>().
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<p><p>See also <a href="#setRange">setRange</a>().
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<h3 class=fn>double <a name="top-prop"></a>top</h3>
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<p>This property holds the validator's maximum acceptable value.
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<p>Set this property's value with <a href="#setTop">setTop</a>() and get this property's value with <a href="#top">top</a>().
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<p><p>See also <a href="#setRange">setRange</a>().
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<hr><p>
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This file is part of the <a href="index.html">TQt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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