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<h1 class="title">contactmodel.cpp Example File</h1>
<span class="subtitle">contactlist/contactmodel.cpp</span>
<!-- $$$contactlist/contactmodel.cpp-description -->
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<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
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  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
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  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
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  <span class="preprocessor">#include &quot;contactmodel.h&quot;</span>

  ContactModel<span class="operator">::</span>ContactModel(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span> <span class="operator">*</span>parent ) : <span class="type"><a href="../qtcore/qabstractlistmodel.html">QAbstractListModel</a></span>(parent)
  {
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Angel Hogan&quot;</span><span class="operator">,</span> <span class="string">&quot;Chapel St. 368 &quot;</span><span class="operator">,</span> <span class="string">&quot;Clearwater&quot;</span> <span class="operator">,</span> <span class="string">&quot;0311 1823993&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Felicia Patton&quot;</span><span class="operator">,</span> <span class="string">&quot;Annadale Lane 2&quot;</span><span class="operator">,</span> <span class="string">&quot;Knoxville&quot;</span> <span class="operator">,</span> <span class="string">&quot;0368 1244494&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Grant Crawford&quot;</span><span class="operator">,</span> <span class="string">&quot;Windsor Drive 34&quot;</span><span class="operator">,</span> <span class="string">&quot;Riverdale&quot;</span> <span class="operator">,</span> <span class="string">&quot;0351 7826892&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Gretchen Little&quot;</span><span class="operator">,</span> <span class="string">&quot;Sunset Drive 348&quot;</span><span class="operator">,</span> <span class="string">&quot;Virginia Beach&quot;</span> <span class="operator">,</span> <span class="string">&quot;0343 1234991&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Geoffrey Richards&quot;</span><span class="operator">,</span> <span class="string">&quot;University Lane 54&quot;</span><span class="operator">,</span> <span class="string">&quot;Trussville&quot;</span> <span class="operator">,</span> <span class="string">&quot;0423 2144944&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Henrietta Chavez&quot;</span><span class="operator">,</span> <span class="string">&quot;Via Volto San Luca 3&quot;</span><span class="operator">,</span> <span class="string">&quot;Piobesi Torinese&quot;</span> <span class="operator">,</span> <span class="string">&quot;0399 2826994&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Harvey Chandler&quot;</span><span class="operator">,</span> <span class="string">&quot;North Squaw Creek 11&quot;</span><span class="operator">,</span> <span class="string">&quot;Madisonville&quot;</span> <span class="operator">,</span> <span class="string">&quot;0343 1244492&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Miguel Gomez&quot;</span><span class="operator">,</span> <span class="string">&quot;Wild Rose Street 13&quot;</span><span class="operator">,</span> <span class="string">&quot;Trussville&quot;</span> <span class="operator">,</span> <span class="string">&quot;0343 9826996&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Norma Rodriguez&quot;</span><span class="operator">,</span> <span class="string">&quot; Glen Eagles Street  53&quot;</span><span class="operator">,</span> <span class="string">&quot;Buffalo&quot;</span> <span class="operator">,</span> <span class="string">&quot;0241 5826596&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Shelia Ramirez&quot;</span><span class="operator">,</span> <span class="string">&quot;East Miller Ave 68&quot;</span><span class="operator">,</span> <span class="string">&quot;Pickerington&quot;</span> <span class="operator">,</span> <span class="string">&quot;0346 4844556&quot;</span> });
      m_contacts<span class="operator">.</span>append({ <span class="string">&quot;Stephanie Moss&quot;</span><span class="operator">,</span> <span class="string">&quot;Piazza Trieste e Trento 77&quot;</span><span class="operator">,</span> <span class="string">&quot;Roata Chiusani&quot;</span> <span class="operator">,</span> <span class="string">&quot;0363 0510490&quot;</span> });
  }

  <span class="type">int</span> ContactModel<span class="operator">::</span>rowCount(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&amp;</span>) <span class="keyword">const</span>
  {
      <span class="keyword">return</span> m_contacts<span class="operator">.</span>count();
  }

  <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> ContactModel<span class="operator">::</span>data(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> <span class="operator">&amp;</span>index<span class="operator">,</span> <span class="type">int</span> role) <span class="keyword">const</span>
  {
      <span class="keyword">if</span> (index<span class="operator">.</span>row() <span class="operator">&lt;</span> rowCount())
          <span class="keyword">switch</span> (role) {
          <span class="keyword">case</span> FullNameRole: <span class="keyword">return</span> m_contacts<span class="operator">.</span>at(index<span class="operator">.</span>row())<span class="operator">.</span>fullName;
          <span class="keyword">case</span> AddressRole: <span class="keyword">return</span> m_contacts<span class="operator">.</span>at(index<span class="operator">.</span>row())<span class="operator">.</span>address;
          <span class="keyword">case</span> CityRole: <span class="keyword">return</span> m_contacts<span class="operator">.</span>at(index<span class="operator">.</span>row())<span class="operator">.</span>city;
          <span class="keyword">case</span> NumberRole: <span class="keyword">return</span> m_contacts<span class="operator">.</span>at(index<span class="operator">.</span>row())<span class="operator">.</span>number;
          <span class="keyword">default</span>: <span class="keyword">return</span> <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span>();
      }
      <span class="keyword">return</span> <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span>();
  }

  <span class="type"><a href="../qtcore/qhash.html">QHash</a></span><span class="operator">&lt;</span><span class="type">int</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span><span class="operator">&gt;</span> ContactModel<span class="operator">::</span>roleNames() <span class="keyword">const</span>
  {
      <span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qhash.html">QHash</a></span><span class="operator">&lt;</span><span class="type">int</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span><span class="operator">&gt;</span> roles {
          { FullNameRole<span class="operator">,</span> <span class="string">&quot;fullName&quot;</span> }<span class="operator">,</span>
          { AddressRole<span class="operator">,</span> <span class="string">&quot;address&quot;</span> }<span class="operator">,</span>
          { CityRole<span class="operator">,</span> <span class="string">&quot;city&quot;</span> }<span class="operator">,</span>
          { NumberRole<span class="operator">,</span> <span class="string">&quot;number&quot;</span> }
      };
      <span class="keyword">return</span> roles;
  }

  <span class="type"><a href="../qtcore/qvariant.html#QVariantMap-typedef">QVariantMap</a></span> ContactModel<span class="operator">::</span>get(<span class="type">int</span> row) <span class="keyword">const</span>
  {
      <span class="keyword">const</span> Contact contact <span class="operator">=</span> m_contacts<span class="operator">.</span>value(row);
      <span class="keyword">return</span> { {<span class="string">&quot;fullName&quot;</span><span class="operator">,</span> contact<span class="operator">.</span>fullName}<span class="operator">,</span> {<span class="string">&quot;address&quot;</span><span class="operator">,</span> contact<span class="operator">.</span>address}<span class="operator">,</span> {<span class="string">&quot;city&quot;</span><span class="operator">,</span> contact<span class="operator">.</span>city}<span class="operator">,</span> {<span class="string">&quot;number&quot;</span><span class="operator">,</span> contact<span class="operator">.</span>number} };
  }

  <span class="type">void</span> ContactModel<span class="operator">::</span>append(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>fullName<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>address<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>city<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>number)
  {
      <span class="type">int</span> row <span class="operator">=</span> <span class="number">0</span>;
      <span class="keyword">while</span> (row <span class="operator">&lt;</span> m_contacts<span class="operator">.</span>count() <span class="operator">&amp;</span><span class="operator">&amp;</span> fullName <span class="operator">&gt;</span> m_contacts<span class="operator">.</span>at(row)<span class="operator">.</span>fullName)
          <span class="operator">+</span><span class="operator">+</span>row;
      beginInsertRows(<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()<span class="operator">,</span> row<span class="operator">,</span> row);
      m_contacts<span class="operator">.</span>insert(row<span class="operator">,</span> {fullName<span class="operator">,</span> address<span class="operator">,</span> city<span class="operator">,</span> number});
      endInsertRows();
  }

  <span class="type">void</span> ContactModel<span class="operator">::</span>set(<span class="type">int</span> row<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>fullName<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>address<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>city<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>number)
  {
      <span class="keyword">if</span> (row <span class="operator">&lt;</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> row <span class="operator">&gt;</span><span class="operator">=</span> m_contacts<span class="operator">.</span>count())
          <span class="keyword">return</span>;

      m_contacts<span class="operator">.</span>replace(row<span class="operator">,</span> { fullName<span class="operator">,</span> address<span class="operator">,</span> city<span class="operator">,</span> number });
      dataChanged(index(row<span class="operator">,</span> <span class="number">0</span>)<span class="operator">,</span> index(row<span class="operator">,</span> <span class="number">0</span>)<span class="operator">,</span> { FullNameRole<span class="operator">,</span> AddressRole<span class="operator">,</span> CityRole<span class="operator">,</span> NumberRole });
  }

  <span class="type">void</span> ContactModel<span class="operator">::</span>remove(<span class="type">int</span> row)
  {
      <span class="keyword">if</span> (row <span class="operator">&lt;</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> row <span class="operator">&gt;</span><span class="operator">=</span> m_contacts<span class="operator">.</span>count())
          <span class="keyword">return</span>;

      beginRemoveRows(<span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span>()<span class="operator">,</span> row<span class="operator">,</span> row);
      m_contacts<span class="operator">.</span>removeAt(row);
      endRemoveRows();
  }

</pre>
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<!-- @@@contactlist/contactmodel.cpp -->
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