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<h1 class="title">xbelreader.cpp Example File</h1>
<span class="subtitle">streambookmarks/xbelreader.cpp</span>
<!-- $$$streambookmarks/xbelreader.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 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.
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  ** $QT_BEGIN_LICENSE:BSD$
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  <span class="preprocessor">#include &lt;QtWidgets&gt;</span>

  <span class="preprocessor">#include &quot;xbelreader.h&quot;</span>

  XbelReader<span class="operator">::</span>XbelReader(<span class="type"><a href="../qtwidgets/qtreewidget.html">QTreeWidget</a></span> <span class="operator">*</span>treeWidget)
      : treeWidget(treeWidget)
  {
      <span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span> <span class="operator">*</span>style <span class="operator">=</span> treeWidget<span class="operator">-</span><span class="operator">&gt;</span>style();

      folderIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirClosedIcon)<span class="operator">,</span>
                           <span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>Off);
      folderIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_DirOpenIcon)<span class="operator">,</span>
                           <span class="type">QIcon</span><span class="operator">::</span>Normal<span class="operator">,</span> <span class="type">QIcon</span><span class="operator">::</span>On);
      bookmarkIcon<span class="operator">.</span>addPixmap(style<span class="operator">-</span><span class="operator">&gt;</span>standardPixmap(<span class="type"><a href="../qtwidgets/qstyle.html">QStyle</a></span><span class="operator">::</span>SP_FileIcon));
  }

  bool XbelReader<span class="operator">::</span>read(<span class="type"><a href="../qtcore/qiodevice.html">QIODevice</a></span> <span class="operator">*</span>device)
  {
      xml<span class="operator">.</span>setDevice(device);

      <span class="keyword">if</span> (xml<span class="operator">.</span>readNextStartElement()) {
          <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;xbel&quot;</span> <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>attributes()<span class="operator">.</span>value(<span class="string">&quot;version&quot;</span>) <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;1.0&quot;</span>)
              readXBEL();
          <span class="keyword">else</span>
              xml<span class="operator">.</span>raiseError(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">&quot;The file is not an XBEL version 1.0 file.&quot;</span>));
      }

      <span class="keyword">return</span> <span class="operator">!</span>xml<span class="operator">.</span>error();
  }

  <span class="type"><a href="../qtcore/qstring.html">QString</a></span> XbelReader<span class="operator">::</span>errorString() <span class="keyword">const</span>
  {
      <span class="keyword">return</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">&quot;%1\nLine %2, column %3&quot;</span>)
              <span class="operator">.</span>arg(xml<span class="operator">.</span>errorString())
              <span class="operator">.</span>arg(xml<span class="operator">.</span>lineNumber())
              <span class="operator">.</span>arg(xml<span class="operator">.</span>columnNumber());
  }

  <span class="type">void</span> XbelReader<span class="operator">::</span>readXBEL()
  {
      Q_ASSERT(xml<span class="operator">.</span>isStartElement() <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;xbel&quot;</span>);

      <span class="keyword">while</span> (xml<span class="operator">.</span>readNextStartElement()) {
          <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;folder&quot;</span>)
              readFolder(<span class="number">0</span>);
          <span class="keyword">else</span> <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;bookmark&quot;</span>)
              readBookmark(<span class="number">0</span>);
          <span class="keyword">else</span> <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;separator&quot;</span>)
              readSeparator(<span class="number">0</span>);
          <span class="keyword">else</span>
              xml<span class="operator">.</span>skipCurrentElement();
      }
  }

  <span class="type">void</span> XbelReader<span class="operator">::</span>readTitle(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
  {
      Q_ASSERT(xml<span class="operator">.</span>isStartElement() <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;title&quot;</span>);

      <span class="type"><a href="../qtcore/qstring.html">QString</a></span> title <span class="operator">=</span> xml<span class="operator">.</span>readElementText();
      item<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> title);
  }

  <span class="type">void</span> XbelReader<span class="operator">::</span>readSeparator(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
  {
      Q_ASSERT(xml<span class="operator">.</span>isStartElement() <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;separator&quot;</span>);

      <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>separator <span class="operator">=</span> createChildItem(item);
      separator<span class="operator">-</span><span class="operator">&gt;</span>setFlags(item<span class="operator">-</span><span class="operator">&gt;</span>flags() <span class="operator">&amp;</span> <span class="operator">~</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsSelectable);
      separator<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="number">30</span><span class="operator">,</span> <span class="number">0xB7</span>));
      xml<span class="operator">.</span>skipCurrentElement();
  }

  <span class="type">void</span> XbelReader<span class="operator">::</span>readFolder(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
  {
      Q_ASSERT(xml<span class="operator">.</span>isStartElement() <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;folder&quot;</span>);

      <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>folder <span class="operator">=</span> createChildItem(item);
      bool folded <span class="operator">=</span> (xml<span class="operator">.</span>attributes()<span class="operator">.</span>value(<span class="string">&quot;folded&quot;</span>) <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;no&quot;</span>);
      treeWidget<span class="operator">-</span><span class="operator">&gt;</span>setItemExpanded(folder<span class="operator">,</span> <span class="operator">!</span>folded);

      <span class="keyword">while</span> (xml<span class="operator">.</span>readNextStartElement()) {
          <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;title&quot;</span>)
              readTitle(folder);
          <span class="keyword">else</span> <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;folder&quot;</span>)
              readFolder(folder);
          <span class="keyword">else</span> <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;bookmark&quot;</span>)
              readBookmark(folder);
          <span class="keyword">else</span> <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;separator&quot;</span>)
              readSeparator(folder);
          <span class="keyword">else</span>
              xml<span class="operator">.</span>skipCurrentElement();
      }
  }

  <span class="type">void</span> XbelReader<span class="operator">::</span>readBookmark(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
  {
      Q_ASSERT(xml<span class="operator">.</span>isStartElement() <span class="operator">&amp;</span><span class="operator">&amp;</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;bookmark&quot;</span>);

      <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>bookmark <span class="operator">=</span> createChildItem(item);
      bookmark<span class="operator">-</span><span class="operator">&gt;</span>setFlags(bookmark<span class="operator">-</span><span class="operator">&gt;</span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
      bookmark<span class="operator">-</span><span class="operator">&gt;</span>setIcon(<span class="number">0</span><span class="operator">,</span> bookmarkIcon);
      bookmark<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">&quot;Unknown title&quot;</span>));
      bookmark<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="number">1</span><span class="operator">,</span> xml<span class="operator">.</span>attributes()<span class="operator">.</span>value(<span class="string">&quot;href&quot;</span>)<span class="operator">.</span>toString());

      <span class="keyword">while</span> (xml<span class="operator">.</span>readNextStartElement()) {
          <span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;title&quot;</span>)
              readTitle(bookmark);
          <span class="keyword">else</span>
              xml<span class="operator">.</span>skipCurrentElement();
      }
  }

  <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>XbelReader<span class="operator">::</span>createChildItem(<span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>item)
  {
      <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span> <span class="operator">*</span>childItem;
      <span class="keyword">if</span> (item) {
          childItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(item);
      } <span class="keyword">else</span> {
          childItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtreewidgetitem.html">QTreeWidgetItem</a></span>(treeWidget);
      }
      childItem<span class="operator">-</span><span class="operator">&gt;</span>setData(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole<span class="operator">,</span> xml<span class="operator">.</span>name()<span class="operator">.</span>toString());
      <span class="keyword">return</span> childItem;
  }

</pre>
</div>
<!-- @@@streambookmarks/xbelreader.cpp -->
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