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<td >Qt 5.12</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >iterator</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtgui-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<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">iterator Class</h1>
<span class="small-subtitle">(<a href="qtextblock-iterator.html">QTextBlock::iterator</a>)<br/></span>
<!-- $$$iterator-brief -->
<p>The <a href="qtextblock-iterator.html">QTextBlock::iterator</a> class provides an iterator for reading the contents of a <a href="qtextblock.html">QTextBlock</a>. <a href="#details">More...</a></p>
<!-- @@@iterator -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <iterator></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr></table></div><ul>
<li><a href="qtextblock-iterator-members.html">List of all members, including inherited members</a></li>
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<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="qtextblock-iterator.html#iterator">iterator</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#iterator-2">iterator</a></b>(const iterator &<i>other</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#atEnd">atEnd</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QTextFragment </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#fragment">fragment</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator-not-eq">operator!=</a></b>(const iterator &<i>other</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> iterator &</td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator-2b-2b">operator++</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> iterator </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator-2b-2b-1">operator++</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> iterator &</td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator--">operator--</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> iterator </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator---1">operator--</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qtextblock-iterator.html#operator-eq-eq">operator==</a></b>(const iterator &<i>other</i>) const</td></tr>
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<a name="details"></a>
<!-- $$$iterator-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qtextblock-iterator.html">QTextBlock::iterator</a> class provides an iterator for reading the contents of a <a href="qtextblock.html">QTextBlock</a>.</p>
<p>A block consists of a sequence of text fragments. This class provides a way to iterate over these, and read their contents. It does not provide a way to modify the internal structure or contents of the block.</p>
<p>An iterator can be constructed and used to access the fragments within a text block in the following way:</p>
<pre class="cpp">
<span class="type"><a href="qtextblock.html#QTextBlock">QTextBlock</a></span><span class="operator">::</span>iterator it;
<span class="keyword">for</span> (it <span class="operator">=</span> currentBlock<span class="operator">.</span>begin(); <span class="operator">!</span>(it<span class="operator">.</span>atEnd()); <span class="operator">+</span><span class="operator">+</span>it) {
<span class="type"><a href="qtextfragment.html">QTextFragment</a></span> currentFragment <span class="operator">=</span> it<span class="operator">.</span>fragment();
<span class="keyword">if</span> (currentFragment<span class="operator">.</span>isValid())
processFragment(currentFragment);
}
</pre>
</div>
<p><b>See also </b><a href="qtextfragment.html">QTextFragment</a>.</p>
<!-- @@@iterator -->
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="iterator"><a name="iterator"></a>iterator::<span class="name">iterator</span>()</h3>
<p>Constructs an iterator for this text block.</p>
<!-- @@@iterator -->
<!-- $$$iterator$$$iteratorconstiterator& -->
<h3 class="fn" id="iterator-2"><a name="iterator-2"></a>iterator::<span class="name">iterator</span>(const <span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> &<i>other</i>)</h3>
<p>Copy constructor. Constructs a copy of the <i>other</i> iterator.</p>
<!-- @@@iterator -->
<!-- $$$atEnd[overload1]$$$atEnd -->
<h3 class="fn" id="atEnd"><a name="atEnd"></a><span class="type">bool</span> iterator::<span class="name">atEnd</span>() const</h3>
<p>Returns <code>true</code> if the current item is the last item in the text block.</p>
<!-- @@@atEnd -->
<!-- $$$fragment[overload1]$$$fragment -->
<h3 class="fn" id="fragment"><a name="fragment"></a><span class="type"><a href="qtextfragment.html">QTextFragment</a></span> iterator::<span class="name">fragment</span>() const</h3>
<p>Returns the text fragment the iterator currently points to.</p>
<!-- @@@fragment -->
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<h3 class="fn" id="operator-not-eq"><a name="operator-not-eq"></a><span class="type">bool</span> iterator::<span class="name">operator!=</span>(const <span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> &<i>other</i>) const</h3>
<p>Retuns true if this iterator is different from the <i>other</i> iterator; otherwise returns <code>false</code>.</p>
<!-- @@@operator!= -->
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<h3 class="fn" id="operator-2b-2b"><a name="operator-2b-2b"></a><span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> &iterator::<span class="name">operator++</span>()</h3>
<p>The prefix ++ operator (<code>++i</code>) advances the iterator to the next item in the hash and returns an iterator to the new current item.</p>
<!-- @@@operator++ -->
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<h3 class="fn" id="operator-2b-2b-1"><a name="operator-2b-2b-1"></a><span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> iterator::<span class="name">operator++</span>(<i>int</i>)</h3>
<p>The postfix ++ operator (<code>i++</code>) advances the iterator to the next item in the text block and returns an iterator to the old current item.</p>
<!-- @@@operator++ -->
<!-- $$$operator--[overload1]$$$operator-- -->
<h3 class="fn" id="operator--"><a name="operator--"></a><span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> &iterator::<span class="name">operator--</span>()</h3>
<p>The prefix -- operator (<code>--i</code>) makes the preceding item current and returns an iterator pointing to the new current item.</p>
<!-- @@@operator-- -->
<!-- $$$operator--$$$operator--int -->
<h3 class="fn" id="operator---1"><a name="operator---1"></a><span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> iterator::<span class="name">operator--</span>(<i>int</i>)</h3>
<p>The postfix -- operator (<code>i--</code>) makes the preceding item current and returns an iterator to the old current item.</p>
<!-- @@@operator-- -->
<!-- $$$operator==[overload1]$$$operator==constiterator& -->
<h3 class="fn" id="operator-eq-eq"><a name="operator-eq-eq"></a><span class="type">bool</span> iterator::<span class="name">operator==</span>(const <span class="type"><a href="qtextblock-iterator.html#iterator">iterator</a></span> &<i>other</i>) const</h3>
<p>Retuns true if this iterator is the same as the <i>other</i> iterator; otherwise returns <code>false</code>.</p>
<!-- @@@operator== -->
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