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<td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-module.html">C++ Classes</a></td><td >QTreeWidgetItemIterator</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<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">QTreeWidgetItemIterator Class</h1>
<!-- $$$QTreeWidgetItemIterator-brief -->
<p>The <a href="qtreewidgetitemiterator.html">QTreeWidgetItemIterator</a> class provides a way to iterate over the items in a <a href="qtreewidget.html">QTreeWidget</a> instance. <a href="#details">More...</a></p>
<!-- @@@QTreeWidgetItemIterator -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QTreeWidgetItemIterator&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += widgets</td></tr></table></div><ul>
<li><a href="qtreewidgetitemiterator-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">IteratorFlag</a></b> { All, Hidden, NotHidden, Selected, ..., UserFlag }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> flags </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">IteratorFlags</a></b></td></tr>
</table></div>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></b>(const QTreeWidgetItemIterator &amp;<i>it</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator-1">QTreeWidgetItemIterator</a></b>(QTreeWidget *<i>widget</i>, IteratorFlags <i>flags</i> = All)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator-2">QTreeWidgetItemIterator</a></b>(QTreeWidgetItem *<i>item</i>, IteratorFlags <i>flags</i> = All)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#dtor.QTreeWidgetItemIterator">~QTreeWidgetItemIterator</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItem *</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator-2a">operator*</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItemIterator &amp;</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator-2b-2b">operator++</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> const QTreeWidgetItemIterator </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator-2b-2b-1">operator++</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItemIterator &amp;</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator-2b-eq">operator+=</a></b>(int <i>n</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItemIterator &amp;</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator--">operator--</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> const QTreeWidgetItemIterator </td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator---1">operator--</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItemIterator &amp;</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator--eq">operator-=</a></b>(int <i>n</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTreeWidgetItemIterator &amp;</td><td class="memItemRight bottomAlign"><b><a href="qtreewidgetitemiterator.html#operator-eq">operator=</a></b>(const QTreeWidgetItemIterator &amp;<i>it</i>)</td></tr>
</table></div>
<a name="details"></a>
<!-- $$$QTreeWidgetItemIterator-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qtreewidgetitemiterator.html">QTreeWidgetItemIterator</a> class provides a way to iterate over the items in a <a href="qtreewidget.html">QTreeWidget</a> instance.</p>
<p>The iterator will walk the items in a pre-order traversal order, thus visiting the parent node <i>before</i> it continues to the child nodes.</p>
<p>For example, the following code examples each item in a tree, checking the text in the first column against a user-specified search string:</p>
<pre class="cpp">

      <span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> it(treeWidget);
      <span class="keyword">while</span> (<span class="operator">*</span>it) {
          <span class="keyword">if</span> ((<span class="operator">*</span>it)<span class="operator">-</span><span class="operator">&gt;</span>text(<span class="number">0</span>) <span class="operator">=</span><span class="operator">=</span> itemText)
              (<span class="operator">*</span>it)<span class="operator">-</span><span class="operator">&gt;</span>setSelected(<span class="keyword">true</span>);
          <span class="operator">+</span><span class="operator">+</span>it;
      }

</pre>
<p>It is also possible to filter out certain types of node by passing certain <a href="qtreewidgetitemiterator.html#IteratorFlag-enum">flags</a> to the constructor of <a href="qtreewidgetitemiterator.html">QTreeWidgetItemIterator</a>.</p>
</div>
<p><b>See also </b><a href="qtreewidget.html">QTreeWidget</a>, <a href="model-view-programming.html">Model/View Programming</a>, and <a href="qtreewidgetitem.html">QTreeWidgetItem</a>.</p>
<!-- @@@QTreeWidgetItemIterator -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$IteratorFlag$$$All$$$Hidden$$$NotHidden$$$Selected$$$Unselected$$$Selectable$$$NotSelectable$$$DragEnabled$$$DragDisabled$$$DropEnabled$$$DropDisabled$$$HasChildren$$$NoChildren$$$Checked$$$NotChecked$$$Enabled$$$Disabled$$$Editable$$$NotEditable$$$UserFlag -->
<h3 class="flags" id="IteratorFlag-enum"><a name="IteratorFlag-enum"></a>enum QTreeWidgetItemIterator::<span class="name">IteratorFlag</span><br/>flags QTreeWidgetItemIterator::<span class="name">IteratorFlags</span></h3>
<p>These flags can be passed to a <a href="qtreewidgetitemiterator.html">QTreeWidgetItemIterator</a> constructor (OR-ed together if more than one is used), so that the iterator will only iterate over items that match the given flags.</p>
<div class="table"><table class="valuelist"><tr><th class="tblConst">Constant</th><th class="tblVal">Value</th></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::All</code></td><td class="topAlign tblval"><code>0x00000000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Hidden</code></td><td class="topAlign tblval"><code>0x00000001</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::NotHidden</code></td><td class="topAlign tblval"><code>0x00000002</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Selected</code></td><td class="topAlign tblval"><code>0x00000004</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Unselected</code></td><td class="topAlign tblval"><code>0x00000008</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Selectable</code></td><td class="topAlign tblval"><code>0x00000010</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::NotSelectable</code></td><td class="topAlign tblval"><code>0x00000020</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::DragEnabled</code></td><td class="topAlign tblval"><code>0x00000040</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::DragDisabled</code></td><td class="topAlign tblval"><code>0x00000080</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::DropEnabled</code></td><td class="topAlign tblval"><code>0x00000100</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::DropDisabled</code></td><td class="topAlign tblval"><code>0x00000200</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::HasChildren</code></td><td class="topAlign tblval"><code>0x00000400</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::NoChildren</code></td><td class="topAlign tblval"><code>0x00000800</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Checked</code></td><td class="topAlign tblval"><code>0x00001000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::NotChecked</code></td><td class="topAlign tblval"><code>0x00002000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Enabled</code></td><td class="topAlign tblval"><code>0x00004000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Disabled</code></td><td class="topAlign tblval"><code>0x00008000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::Editable</code></td><td class="topAlign tblval"><code>0x00010000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::NotEditable</code></td><td class="topAlign tblval"><code>0x00020000</code></td></tr>
<tr><td class="topAlign"><code>QTreeWidgetItemIterator::UserFlag</code></td><td class="topAlign tblval"><code>0x01000000</code></td></tr>
</table></div>
<p>The IteratorFlags type is a typedef for <a href="../qtcore/qflags.html">QFlags</a>&lt;IteratorFlag&gt;. It stores an OR combination of IteratorFlag values.</p>
<!-- @@@IteratorFlag -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QTreeWidgetItemIterator[overload1]$$$QTreeWidgetItemIteratorconstQTreeWidgetItemIterator& -->
<h3 class="fn" id="QTreeWidgetItemIterator"><a name="QTreeWidgetItemIterator"></a>QTreeWidgetItemIterator::<span class="name">QTreeWidgetItemIterator</span>(const <span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;<i>it</i>)</h3>
<p>Constructs an iterator for the same <a href="qtreewidget.html">QTreeWidget</a> as <i>it</i>. The current iterator item is set to point on the current item of <i>it</i>.</p>
<!-- @@@QTreeWidgetItemIterator -->
<!-- $$$QTreeWidgetItemIterator$$$QTreeWidgetItemIteratorQTreeWidget*IteratorFlags -->
<h3 class="fn" id="QTreeWidgetItemIterator-1"><a name="QTreeWidgetItemIterator-1"></a>QTreeWidgetItemIterator::<span class="name">QTreeWidgetItemIterator</span>(<span class="type"><a href="qtreewidget.html">QTreeWidget</a></span> *<i>widget</i>, <span class="type"><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">IteratorFlags</a></span> <i>flags</i> = All)</h3>
<p>Constructs an iterator for the given <i>widget</i> that uses the specified <i>flags</i> to determine which items are found during iteration. The iterator is set to point to the first top-level item contained in the widget, or the next matching item if the top-level item doesn't match the flags.</p>
<p><b>See also </b><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">QTreeWidgetItemIterator::IteratorFlag</a>.</p>
<!-- @@@QTreeWidgetItemIterator -->
<!-- $$$QTreeWidgetItemIterator$$$QTreeWidgetItemIteratorQTreeWidgetItem*IteratorFlags -->
<h3 class="fn" id="QTreeWidgetItemIterator-2"><a name="QTreeWidgetItemIterator-2"></a>QTreeWidgetItemIterator::<span class="name">QTreeWidgetItemIterator</span>(<span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> *<i>item</i>, <span class="type"><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">IteratorFlags</a></span> <i>flags</i> = All)</h3>
<p>Constructs an iterator for the given <i>item</i> that uses the specified <i>flags</i> to determine which items are found during iteration. The iterator is set to point to <i>item</i>, or the next matching item if <i>item</i> doesn't match the flags.</p>
<p><b>See also </b><a href="qtreewidgetitemiterator.html#IteratorFlag-enum">QTreeWidgetItemIterator::IteratorFlag</a>.</p>
<!-- @@@QTreeWidgetItemIterator -->
<!-- $$$~QTreeWidgetItemIterator[overload1]$$$~QTreeWidgetItemIterator -->
<h3 class="fn" id="dtor.QTreeWidgetItemIterator"><a name="dtor.QTreeWidgetItemIterator"></a>QTreeWidgetItemIterator::<span class="name">~QTreeWidgetItemIterator</span>()</h3>
<p>Destroys the iterator.</p>
<!-- @@@~QTreeWidgetItemIterator -->
<!-- $$$operator*[overload1]$$$operator* -->
<h3 class="fn" id="operator-2a"><a name="operator-2a"></a><span class="type"><a href="qtreewidgetitem.html">QTreeWidgetItem</a></span> *QTreeWidgetItemIterator::<span class="name">operator*</span>() const</h3>
<p>Dereference operator. Returns a pointer to the current item.</p>
<!-- @@@operator* -->
<!-- $$$operator++[overload1]$$$operator++ -->
<h3 class="fn" id="operator-2b-2b"><a name="operator-2b-2b"></a><span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;QTreeWidgetItemIterator::<span class="name">operator++</span>()</h3>
<p>The prefix ++ operator (++it) advances the iterator to the next matching item and returns a reference to the resulting iterator. Sets the current pointer to 0 if the current item is the last matching item.</p>
<!-- @@@operator++ -->
<!-- $$$operator++$$$operator++int -->
<h3 class="fn" id="operator-2b-2b-1"><a name="operator-2b-2b-1"></a>const <span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> QTreeWidgetItemIterator::<span class="name">operator++</span>(<i>int</i>)</h3>
<p>The postfix ++ operator (it++) advances the iterator to the next matching item and returns an iterator to the previously current item.</p>
<!-- @@@operator++ -->
<!-- $$$operator+=[overload1]$$$operator+=int -->
<h3 class="fn" id="operator-2b-eq"><a name="operator-2b-eq"></a><span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;QTreeWidgetItemIterator::<span class="name">operator+=</span>(<span class="type">int</span> <i>n</i>)</h3>
<p>Makes the iterator go forward by <i>n</i> matching items. (If n is negative, the iterator goes backward.)</p>
<p>If the current item is beyond the last item, the current item pointer is set to 0. Returns the resulting iterator.</p>
<!-- @@@operator+= -->
<!-- $$$operator--[overload1]$$$operator-- -->
<h3 class="fn" id="operator--"><a name="operator--"></a><span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;QTreeWidgetItemIterator::<span class="name">operator--</span>()</h3>
<p>The prefix -- operator (--it) advances the iterator to the previous matching item and returns a reference to the resulting iterator. Sets the current pointer to 0 if the current item is the first matching item.</p>
<!-- @@@operator-- -->
<!-- $$$operator--$$$operator--int -->
<h3 class="fn" id="operator---1"><a name="operator---1"></a>const <span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> QTreeWidgetItemIterator::<span class="name">operator--</span>(<i>int</i>)</h3>
<p>The postfix -- operator (it--) makes the preceding matching item current and returns an iterator to the previously current item.</p>
<!-- @@@operator-- -->
<!-- $$$operator-=[overload1]$$$operator-=int -->
<h3 class="fn" id="operator--eq"><a name="operator--eq"></a><span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;QTreeWidgetItemIterator::<span class="name">operator-=</span>(<span class="type">int</span> <i>n</i>)</h3>
<p>Makes the iterator go backward by <i>n</i> matching items. (If n is negative, the iterator goes forward.)</p>
<p>If the current item is ahead of the last item, the current item pointer is set to 0. Returns the resulting iterator.</p>
<!-- @@@operator-= -->
<!-- $$$operator=[overload1]$$$operator=constQTreeWidgetItemIterator& -->
<h3 class="fn" id="operator-eq"><a name="operator-eq"></a><span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;QTreeWidgetItemIterator::<span class="name">operator=</span>(const <span class="type"><a href="qtreewidgetitemiterator.html#QTreeWidgetItemIterator">QTreeWidgetItemIterator</a></span> &amp;<i>it</i>)</h3>
<p>Assignment. Makes a copy of <i>it</i> and returns a reference to its iterator.</p>
<!-- @@@operator= -->
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