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  <title>Qt Mobility 1.2: QGalleryFilter Class Reference</title>
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    <a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QGalleryFilter Class Reference</h1>
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<p>The QGalleryFilter class provides filtering criteria for gallery requests. <a href="#details">More...</a></p>
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<pre class="cpp"> <span class="preprocessor">#include &lt;QGalleryFilter&gt;</span></pre><p>This class was introduced in Qt Mobility 1.1.</p>
<ul>
<li><a href="qgalleryfilter-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2>Public Types</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#Comparator-enum">Comparator</a></b> { Equals, LessThan, GreaterThan, LessThanEquals, ..., RegExp }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#Type-enum">Type</a></b> { Invalid, Intersection, Union, MetaData }</td></tr>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#QGalleryFilter">QGalleryFilter</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#QGalleryFilter-2">QGalleryFilter</a></b> ( const QGalleryFilter &amp; <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#QGalleryFilter-3">QGalleryFilter</a></b> ( const QGalleryIntersectionFilter &amp; <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#QGalleryFilter-4">QGalleryFilter</a></b> ( const QGalleryUnionFilter &amp; <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#QGalleryFilter-5">QGalleryFilter</a></b> ( const QGalleryMetaDataFilter &amp; <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#dtor.QGalleryFilter">~QGalleryFilter</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#isValid">isValid</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGalleryIntersectionFilter </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#toIntersectionFilter">toIntersectionFilter</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGalleryMetaDataFilter </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#toMetaDataFilter">toMetaDataFilter</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGalleryUnionFilter </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#toUnionFilter">toUnionFilter</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> Type </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#type">type</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QGalleryFilter &amp; </td><td class="memItemRight bottomAlign"><b><a href="qgalleryfilter.html#operator-eq">operator=</a></b> ( const QGalleryFilter &amp; <i>filter</i> )</td></tr>
</table>
<a name="details"></a>
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<div class="descr">
<h2>Detailed Description</h2>
<p>The QGalleryFilter class provides filtering criteria for gallery requests.</p>
<p>A gallery filter may be a {QGalleryMetaData}{meta-data}, {<a href="qgalleryunionfilter.html">QGalleryUnionFilter</a>}{union}, or {<a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a>}{intersection} filter. The type of a QGalleryFilter is given by the <a href="qgalleryfilter.html#type">type</a>() function, and a filter can be cast to its specific type using one of toMetaFilter(), <a href="qgalleryfilter.html#toUnionFilter">toUnionFilter</a>() or <a href="qgalleryfilter.html#toIntersectionFilter">toIntersectionFilter</a>(). Casting to different type of filter will always result in an invalid filter.</p>
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<p><b>See also </b><a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a>, <a href="qgalleryunionfilter.html">QGalleryUnionFilter</a>, and <a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a>.</p>
<!-- @@@QGalleryFilter -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$Comparator$$$Equals$$$LessThan$$$GreaterThan$$$LessThanEquals$$$GreaterThanEquals$$$Contains$$$StartsWith$$$EndsWith$$$Wildcard$$$RegExp -->
<h3 class="fn"><a name="Comparator-enum"></a>enum QGalleryFilter::<span class="name">Comparator</span></h3>
<p>Identifies the comparison made by a <a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a>.</p>
<table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Equals</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">The filter tests if a meta-data property is equal to a value.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::LessThan</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">The filter tests if a meta-data property is less than a value.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::GreaterThan</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">The filter tests if a meta-data property is greater than a value.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::LessThanEquals</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">The filter tests if a meta-data property is less than or equal to a value.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::GreaterThanEquals</tt></td><td class="topAlign"><tt>4</tt></td><td class="topAlign">The filter tests if a meta-data property is greater than or equal to a value.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Contains</tt></td><td class="topAlign"><tt>5</tt></td><td class="topAlign">The filter tests if a meta-data property contains a sub-string.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::StartsWith</tt></td><td class="topAlign"><tt>6</tt></td><td class="topAlign">The filter tests if a meta-data property starts with a string.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::EndsWith</tt></td><td class="topAlign"><tt>7</tt></td><td class="topAlign">The filter tests if a meta-data property ends with a string.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Wildcard</tt></td><td class="topAlign"><tt>8</tt></td><td class="topAlign">The filter tests if a meta-data property matches a wildcard string.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::RegExp</tt></td><td class="topAlign"><tt>9</tt></td><td class="topAlign">The filter tests if a meta-data property matches a regular expression.</td></tr>
</table>
<!-- @@@Comparator -->
<!-- $$$Type$$$Invalid$$$Intersection$$$Union$$$MetaData -->
<h3 class="fn"><a name="Type-enum"></a>enum QGalleryFilter::<span class="name">Type</span></h3>
<p>Identifies the type of a filter.</p>
<table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Invalid</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">The filter is a null <a href="qgalleryfilter.html">QGalleryFilter</a>.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Intersection</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">The filter is a <a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a>.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::Union</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">The filter is a <a href="qgalleryunionfilter.html">QGalleryUnionFilter</a>.</td></tr>
<tr><td class="topAlign"><tt>QGalleryFilter::MetaData</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">The filter is a <a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a>.</td></tr>
</table>
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</div>
<div class="func">
<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="QGalleryFilter"></a>QGalleryFilter::<span class="name">QGalleryFilter</span> ()</h3>
<p>Constructs a gallery filter of type <a href="qgalleryfilter.html#Type-enum">Invalid</a>.</p>
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<h3 class="fn"><a name="QGalleryFilter-2"></a>QGalleryFilter::<span class="name">QGalleryFilter</span> ( const <span class="type">QGalleryFilter</span> &amp; <i>filter</i> )</h3>
<p>Constructs a copy of a gallery <i>filter</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@QGalleryFilter -->
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<h3 class="fn"><a name="QGalleryFilter-3"></a>QGalleryFilter::<span class="name">QGalleryFilter</span> ( const <span class="type"><a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a></span> &amp; <i>filter</i> )</h3>
<p>Constructs a copy of a gallery intersection <i>filter</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@QGalleryFilter -->
<!-- $$$QGalleryFilter$$$QGalleryFilterconstQGalleryUnionFilter& -->
<h3 class="fn"><a name="QGalleryFilter-4"></a>QGalleryFilter::<span class="name">QGalleryFilter</span> ( const <span class="type"><a href="qgalleryunionfilter.html">QGalleryUnionFilter</a></span> &amp; <i>filter</i> )</h3>
<p>Constructs a copy of a gallery union <i>filter</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@QGalleryFilter -->
<!-- $$$QGalleryFilter$$$QGalleryFilterconstQGalleryMetaDataFilter& -->
<h3 class="fn"><a name="QGalleryFilter-5"></a>QGalleryFilter::<span class="name">QGalleryFilter</span> ( const <span class="type"><a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a></span> &amp; <i>filter</i> )</h3>
<p>Constructs a copy of a gallery meta-data <i>filter</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@QGalleryFilter -->
<!-- $$$~QGalleryFilter[overload1]$$$~QGalleryFilter -->
<h3 class="fn"><a name="dtor.QGalleryFilter"></a>QGalleryFilter::<span class="name">~QGalleryFilter</span> ()</h3>
<p>Destroys a gallery filter.</p>
<!-- @@@~QGalleryFilter -->
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<h3 class="fn"><a name="isValid"></a><span class="type">bool</span> QGalleryFilter::<span class="name">isValid</span> () const</h3>
<p>Returns true if the <a href="qgalleryfilter.html#type">type</a>() of the filter is not equal to Invalid.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@isValid -->
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<h3 class="fn"><a name="toIntersectionFilter"></a><span class="type"><a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a></span> QGalleryFilter::<span class="name">toIntersectionFilter</span> () const</h3>
<p>Casts a filter to an intersection filter. The filter must be of type Intersection or this will return an Invalid filter.</p>
<p>Returns a <a href="qgalleryintersectionfilter.html">QGalleryIntersectionFilter</a>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@toIntersectionFilter -->
<!-- $$$toMetaDataFilter[overload1]$$$toMetaDataFilter -->
<h3 class="fn"><a name="toMetaDataFilter"></a><span class="type"><a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a></span> QGalleryFilter::<span class="name">toMetaDataFilter</span> () const</h3>
<p>Casts a filter to a meta-data filter. The filter must be of type <a href="qgalleryfilter.html#Type-enum">MetaData</a> or this will return an Invalid filter.</p>
<p>Returns a <a href="qgallerymetadatafilter.html">QGalleryMetaDataFilter</a>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@toMetaDataFilter -->
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<h3 class="fn"><a name="toUnionFilter"></a><span class="type"><a href="qgalleryunionfilter.html">QGalleryUnionFilter</a></span> QGalleryFilter::<span class="name">toUnionFilter</span> () const</h3>
<p>Casts a filter to a union filter. The filter must be of type Union or this will return an Invalid filter.</p>
<p>Returns a <a href="qgalleryunionfilter.html">QGalleryUnionFilter</a>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@toUnionFilter -->
<!-- $$$type[overload1]$$$type -->
<h3 class="fn"><a name="type"></a><span class="type"><a href="qgalleryfilter.html#Type-enum">Type</a></span> QGalleryFilter::<span class="name">type</span> () const</h3>
<p>Returns the type of a filter.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@type -->
<!-- $$$operator=[overload1]$$$operator=constQGalleryFilter& -->
<h3 class="fn"><a name="operator-eq"></a><span class="type">QGalleryFilter</span> &amp; QGalleryFilter::<span class="name">operator=</span> ( const <span class="type">QGalleryFilter</span> &amp; <i>filter</i> )</h3>
<p>Assigns the value of <i>filter</i> to another filter.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@operator= -->
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