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<td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-tutorials-addressbook-part5-example.html">Part 5 - Adding a Find Function</a></td><td >finddialog.cpp Example File</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">finddialog.cpp Example File</h1>
<span class="subtitle">tutorials/addressbook/part5/finddialog.cpp</span>
<!-- $$$tutorials/addressbook/part5/finddialog.cpp-description -->
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<pre class="cpp">

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  <span class="preprocessor">#include &lt;QtWidgets&gt;</span>
  <span class="preprocessor">#include &quot;finddialog.h&quot;</span>

  FindDialog<span class="operator">::</span>FindDialog(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
      : <span class="type"><a href="qdialog.html">QDialog</a></span>(parent)
  {
      <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>findLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;Enter the name of a contact:&quot;</span>));
      lineEdit <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineedit.html">QLineEdit</a></span>;

      findButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;&amp;Find&quot;</span>));
      findText <span class="operator">=</span> <span class="string">&quot;&quot;</span>;

      <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(findLabel);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(lineEdit);
      layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(findButton);

      setLayout(layout);
      setWindowTitle(tr(<span class="string">&quot;Find a Contact&quot;</span>));
      connect(findButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(findClicked()));
      connect(findButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(accept()));
  }
  <span class="type">void</span> FindDialog<span class="operator">::</span>findClicked()
  {
      <span class="type"><a href="../qtcore/qstring.html">QString</a></span> text <span class="operator">=</span> lineEdit<span class="operator">-</span><span class="operator">&gt;</span>text();

      <span class="keyword">if</span> (text<span class="operator">.</span>isEmpty()) {
          <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">&quot;Empty Field&quot;</span>)<span class="operator">,</span>
              tr(<span class="string">&quot;Please enter a name.&quot;</span>));
          <span class="keyword">return</span>;
      } <span class="keyword">else</span> {
          findText <span class="operator">=</span> text;
          lineEdit<span class="operator">-</span><span class="operator">&gt;</span>clear();
          hide();
      }
  }
  <span class="type"><a href="../qtcore/qstring.html">QString</a></span> FindDialog<span class="operator">::</span>getFindText()
  {
      <span class="keyword">return</span> findText;
  }

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