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<?xml version="1.0" encoding="iso-8859-1"?>
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<html><head><title>QIntValidator Class Reference</title><style>h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm }
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</style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr /><td align="left" valign="top" width="32"><img align="left" border="0" height="32" src="images/rb-logo.png" width="32" /></td><td width="1">  </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="modules.html"><font color="#004faf">Modules</font></a></td></table><h1 align="center">QIntValidator Class Reference<br /><sup><sup>[<a href="qtgui.html">QtGui</a> module]</sup></sup></h1><p>The QIntValidator class provides a validator that ensures a
string contains a valid integer within a specified range. <a href="#details">More...</a></p>
<p>Inherits <a href="qvalidator.html">QValidator</a>.</p><h3>Methods</h3><ul><li><div class="fn" /><b><a href="qintvalidator.html#QIntValidator">__init__</a></b> (<i>self</i>, QObject <i>parent</i> = None)</li><li><div class="fn" /><b><a href="qintvalidator.html#QIntValidator-2">__init__</a></b> (<i>self</i>, int <i>bottom</i>, int <i>top</i>, QObject <i>parent</i> = None)</li><li><div class="fn" />int <b><a href="qintvalidator.html#bottom">bottom</a></b> (<i>self</i>)</li><li><div class="fn" />QString <i>input</i> <b><a href="qintvalidator.html#fixup">fixup</a></b> (<i>self</i>, QString <i>input</i>)</li><li><div class="fn" /><b><a href="qintvalidator.html#fixup-2">fixup</a></b> (<i>self</i>, QString <i>input</i>)</li><li><div class="fn" /><b><a href="qintvalidator.html#setBottom">setBottom</a></b> (<i>self</i>, int)</li><li><div class="fn" /><b><a href="qintvalidator.html#setRange">setRange</a></b> (<i>self</i>, int <i>bottom</i>, int <i>top</i>)</li><li><div class="fn" /><b><a href="qintvalidator.html#setTop">setTop</a></b> (<i>self</i>, int)</li><li><div class="fn" />int <b><a href="qintvalidator.html#top">top</a></b> (<i>self</i>)</li><li><div class="fn" />(QValidator.State, QString, int) <b><a href="qintvalidator.html#validate">validate</a></b> (<i>self</i>, QString, int)</li><li><div class="fn" />(QValidator.State, int) <b><a href="qintvalidator.html#validate-2">validate</a></b> (<i>self</i>, QString, int)</li></ul><a name="details" /><hr /><h2>Detailed Description</h2><p>The QIntValidator class provides a validator that ensures a
string contains a valid integer within a specified range.</p>
<p>Example of use:</p>
<pre class="cpp">
<span class="type"><a href="qvalidator.html">QValidator</a></span> <span class="operator">*</span>validator <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QIntValidator</span>(<span class="number">100</span><span class="operator">,</span> <span class="number">999</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>edit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>(<span class="keyword">this</span>);
<span class="comment">// the edit lineedit will only accept integers between 100 and 999</span>
edit<span class="operator">-</span><span class="operator">></span>setValidator(validator);
</pre>
<p>Below we present some examples of validators. In practice they
would normally be associated with a widget as in the example
above.</p>
<pre class="cpp">
<span class="type"><a href="qstring.html">QString</a></span> str;
<span class="type">int</span> pos <span class="operator">=</span> <span class="number">0</span>;
<span class="type">QIntValidator</span> v(<span class="number">100</span><span class="operator">,</span> <span class="number">900</span><span class="operator">,</span> <span class="keyword">this</span>);
str <span class="operator">=</span> <span class="string">"1"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Intermediate</span>
str <span class="operator">=</span> <span class="string">"012"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Intermediate</span>
str <span class="operator">=</span> <span class="string">"123"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Acceptable</span>
str <span class="operator">=</span> <span class="string">"678"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Acceptable</span>
str <span class="operator">=</span> <span class="string">"999"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Intermediate</span>
str <span class="operator">=</span> <span class="string">"1234"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Invalid</span>
str <span class="operator">=</span> <span class="string">"-123"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Invalid</span>
str <span class="operator">=</span> <span class="string">"abc"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Invalid</span>
str <span class="operator">=</span> <span class="string">"12cm"</span>;
v<span class="operator">.</span><a href="qintvalidator.html#validate">validate</a>(str<span class="operator">,</span> pos); <span class="comment">// returns Invalid</span>
</pre>
<p>Notice that the value <tt>999</tt> returns Intermediate. Values
consisting of a number of digits equal to or less than the max
value are considered intermediate. This is intended because the
digit that prevents a number to be in range is not necessarily the
last digit typed. This also means that an intermediate number can
have leading zeros.</p>
<p>The minimum and maximum values are set in one call with <a href="qintvalidator.html#setRange">setRange</a>(), or individually with
<a href="qintvalidator.html#bottom-prop">setBottom</a>() and
<a href="qintvalidator.html#top-prop">setTop</a>().</p>
<p>QIntValidator uses its <a href="qvalidator.html#locale">locale</a>() to interpret the number. For
example, in Arabic locales, QIntValidator will accept Arabic
digits. In addition, QIntValidator is always guaranteed to accept a
number formatted according to the "C" locale.</p>
<hr /><h2>Method Documentation</h2><h3 class="fn"><a name="QIntValidator" />QIntValidator.__init__ (<i>self</i>, <a href="qobject.html">QObject</a> <i>parent</i> = None)</h3><p>The <i>parent</i> argument, if not None, causes <i>self</i> to be owned by Qt instead of PyQt.</p><p>Constructs a validator with a <i>parent</i> object that accepts
all integers.</p>
<h3 class="fn"><a name="QIntValidator-2" />QIntValidator.__init__ (<i>self</i>, int <i>bottom</i>, int <i>top</i>, <a href="qobject.html">QObject</a> <i>parent</i> = None)</h3><p>The <i>parent</i> argument, if not None, causes <i>self</i> to be owned by Qt instead of PyQt.</p><p>Constructs a validator with a <i>parent</i>, that accepts
integers from <i>minimum</i> to <i>maximum</i> inclusive.</p>
<h3 class="fn"><a name="bottom" />int QIntValidator.bottom (<i>self</i>)</h3><h3 class="fn"><a name="fixup" />QString <i>input</i> QIntValidator.fixup (<i>self</i>, QString <i>input</i>)</h3><p>Reimplemented from <a href="qvalidator.html#fixup">QValidator.fixup</a>().</p>
<h3 class="fn"><a name="fixup-2" />QIntValidator.fixup (<i>self</i>, QString <i>input</i>)</h3><h3 class="fn"><a name="setBottom" />QIntValidator.setBottom (<i>self</i>, int)</h3><h3 class="fn"><a name="setRange" />QIntValidator.setRange (<i>self</i>, int <i>bottom</i>, int <i>top</i>)</h3><p>Sets the range of the validator to only accept integers between
<i>bottom</i> and <i>top</i> inclusive.</p>
<h3 class="fn"><a name="setTop" />QIntValidator.setTop (<i>self</i>, int)</h3><h3 class="fn"><a name="top" />int QIntValidator.top (<i>self</i>)</h3><h3 class="fn"><a name="validate" />(<a href="qvalidator.html#State-enum">QValidator.State</a>, QString, int) QIntValidator.validate (<i>self</i>, QString, int)</h3><p>Reimplemented from <a href="qvalidator.html#validate">QValidator.validate</a>().</p>
<p>Returns <a href="qvalidator.html#State-enum">Acceptable</a> if
the <i>input</i> is an integer within the valid range, <a href="qvalidator.html#State-enum">Intermediate</a> if the <i>input</i>
is a prefix of an integer in the valid range, and <a href="qvalidator.html#State-enum">Invalid</a> otherwise.</p>
<p>If the valid range consists of just positive integers (e.g., 32
to 100) and <i>input</i> is a negative integer, then Invalid is
returned. (On the other hand, if the range consists of negative
integers (e.g., -100 to -32) and <i>input</i> is a positive
integer, then Intermediate is returned, because the user might be
just about to type the minus (especially for right-to-left
languages).</p>
<pre class="cpp">
<span class="type">int</span> pos <span class="operator">=</span> <span class="number">0</span>;
s <span class="operator">=</span> <span class="string">"abc"</span>;
v<span class="operator">.</span>validate(s<span class="operator">,</span> pos); <span class="comment">// returns Invalid</span>
s <span class="operator">=</span> <span class="string">"5"</span>;
v<span class="operator">.</span>validate(s<span class="operator">,</span> pos); <span class="comment">// returns Intermediate</span>
s <span class="operator">=</span> <span class="string">"50"</span>;
v<span class="operator">.</span>validate(s<span class="operator">,</span> pos); <span class="comment">// returns Acceptable</span>
</pre>
<p>By default, the <i>pos</i> parameter is not used by this
validator.</p>
<h3 class="fn"><a name="validate-2" />(<a href="qvalidator.html#State-enum">QValidator.State</a>, int) QIntValidator.validate (<i>self</i>, QString, int)</h3><address><hr /><div align="center"><table border="0" cellspacing="0" width="100%"><tr class="address"><td align="left" width="25%">PyQt 4.12.1 for X11</td><td align="center" width="50%">Copyright © <a href="http://www.riverbankcomputing.com">Riverbank Computing Ltd</a> and <a href="http://www.qt.io">The Qt Company</a> 2015</td><td align="right" width="25%">Qt 4.8.7</td></tr></table></div></address></body></html>
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