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

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2017 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the examples of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see https://www.qt.io/terms-conditions. For further
  ** information use the contact form at https://www.qt.io/contact-us.
  **
  ** BSD License Usage
  ** Alternatively, you may use this file under the terms of the BSD license
  ** as follows:
  **
  ** &quot;Redistribution and use in source and binary forms, with or without
  ** modification, are permitted provided that the following conditions are
  ** met:
  **   * Redistributions of source code must retain the above copyright
  **     notice, this list of conditions and the following disclaimer.
  **   * Redistributions in binary form must reproduce the above copyright
  **     notice, this list of conditions and the following disclaimer in
  **     the documentation and/or other materials provided with the
  **     distribution.
  **   * Neither the name of The Qt Company Ltd nor the names of its
  **     contributors may be used to endorse or promote products derived
  **     from this software without specific prior written permission.
  **
  **
  ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/</span>

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

  <span class="preprocessor">#include &lt;QtWidgets&gt;</span>
  <span class="preprocessor">#include &lt;QSvgRenderer&gt;</span>

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

  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> picturesLocation()
  {
      <span class="keyword">return</span> <span class="type"><a href="../qtcore/qstandardpaths.html">QStandardPaths</a></span><span class="operator">::</span>standardLocations(<span class="type"><a href="../qtcore/qstandardpaths.html">QStandardPaths</a></span><span class="operator">::</span>PicturesLocation)<span class="operator">.</span>value(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>currentPath());
  }

  MainWindow<span class="operator">::</span>MainWindow()
      : <span class="type"><a href="../qtwidgets/qmainwindow.html">QMainWindow</a></span>()
      <span class="operator">,</span> m_view(<span class="keyword">new</span> SvgView)
  {
      <span class="type"><a href="../qtwidgets/qtoolbar.html">QToolBar</a></span> <span class="operator">*</span>toolBar <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qtoolbar.html">QToolBar</a></span>(<span class="keyword">this</span>);
      addToolBar(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>TopToolBarArea<span class="operator">,</span> toolBar);

      <span class="type"><a href="../qtwidgets/qmenu.html">QMenu</a></span> <span class="operator">*</span>fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;File&quot;</span>));
      <span class="keyword">const</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> openIcon <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>fromTheme(<span class="string">&quot;document-open&quot;</span><span class="operator">,</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">&quot;:/qt-project.org/styles/commonstyle/images/standardbutton-open-32.png&quot;</span>));
      <span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span> <span class="operator">*</span>openAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(openIcon<span class="operator">,</span> tr(<span class="string">&quot;&amp;Open...&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>MainWindow<span class="operator">::</span>openFile);
      openAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Open);
      toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(openAction);
      <span class="keyword">const</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> exportIcon <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>fromTheme(<span class="string">&quot;document-save&quot;</span><span class="operator">,</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span>(<span class="string">&quot;:/qt-project.org/styles/commonstyle/images/standardbutton-save-32.png&quot;</span>));
      <span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span> <span class="operator">*</span>exportAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(exportIcon<span class="operator">,</span> tr(<span class="string">&quot;&amp;Export...&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>MainWindow<span class="operator">::</span>exportImage);
      exportAction<span class="operator">-</span><span class="operator">&gt;</span>setToolTip(tr(<span class="string">&quot;Export Image&quot;</span>));
      exportAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CTRL <span class="operator">+</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_E);
      toolBar<span class="operator">-</span><span class="operator">&gt;</span>addAction(exportAction);
      <span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span> <span class="operator">*</span>quitAction <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;E&amp;xit&quot;</span>)<span class="operator">,</span> qApp<span class="operator">,</span> <span class="type"><a href="../qtcore/qcoreapplication.html">QCoreApplication</a></span><span class="operator">::</span>quit);
      quitAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit);

      <span class="type"><a href="../qtwidgets/qmenu.html">QMenu</a></span> <span class="operator">*</span>viewMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;View&quot;</span>));
      m_backgroundAction <span class="operator">=</span> viewMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;Background&quot;</span>));
      m_backgroundAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
      m_backgroundAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_backgroundAction<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">false</span>);
      connect(m_backgroundAction<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span><span class="operator">::</span>toggled<span class="operator">,</span> m_view<span class="operator">,</span> <span class="operator">&amp;</span>SvgView<span class="operator">::</span>setViewBackground);

      m_outlineAction <span class="operator">=</span> viewMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;Outline&quot;</span>));
      m_outlineAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
      m_outlineAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_outlineAction<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">true</span>);
      connect(m_outlineAction<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span><span class="operator">::</span>toggled<span class="operator">,</span> m_view<span class="operator">,</span> <span class="operator">&amp;</span>SvgView<span class="operator">::</span>setViewOutline);

      <span class="type"><a href="../qtwidgets/qmenu.html">QMenu</a></span> <span class="operator">*</span>rendererMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;Renderer&quot;</span>));
      m_nativeAction <span class="operator">=</span> rendererMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;Native&quot;</span>));
      m_nativeAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_nativeAction<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">true</span>);
      m_nativeAction<span class="operator">-</span><span class="operator">&gt;</span>setData(<span class="type">int</span>(SvgView<span class="operator">::</span>Native));
  <span class="preprocessor">#ifndef QT_NO_OPENGL</span>
      m_glAction <span class="operator">=</span> rendererMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;OpenGL&quot;</span>));
      m_glAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_glAction<span class="operator">-</span><span class="operator">&gt;</span>setData(<span class="type">int</span>(SvgView<span class="operator">::</span>OpenGL));
  <span class="preprocessor">#endif</span>
      m_imageAction <span class="operator">=</span> rendererMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;Image&quot;</span>));
      m_imageAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_imageAction<span class="operator">-</span><span class="operator">&gt;</span>setData(<span class="type">int</span>(SvgView<span class="operator">::</span>Image));

      rendererMenu<span class="operator">-</span><span class="operator">&gt;</span>addSeparator();
      m_highQualityAntialiasingAction <span class="operator">=</span> rendererMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;&amp;High Quality Antialiasing&quot;</span>));
      m_highQualityAntialiasingAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
      m_highQualityAntialiasingAction<span class="operator">-</span><span class="operator">&gt;</span>setCheckable(<span class="keyword">true</span>);
      m_highQualityAntialiasingAction<span class="operator">-</span><span class="operator">&gt;</span>setChecked(<span class="keyword">false</span>);
      connect(m_highQualityAntialiasingAction<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span><span class="operator">::</span>toggled<span class="operator">,</span> m_view<span class="operator">,</span> <span class="operator">&amp;</span>SvgView<span class="operator">::</span>setHighQualityAntialiasing);
  <span class="preprocessor">#ifdef QT_NO_OPENGL</span>
      m_highQualityAntialiasingAction<span class="operator">-</span><span class="operator">&gt;</span>setVisible(<span class="keyword">false</span>);
  <span class="preprocessor">#endif</span>

      <span class="type"><a href="../qtwidgets/qactiongroup.html">QActionGroup</a></span> <span class="operator">*</span>rendererGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qactiongroup.html">QActionGroup</a></span>(<span class="keyword">this</span>);
      rendererGroup<span class="operator">-</span><span class="operator">&gt;</span>addAction(m_nativeAction);
  <span class="preprocessor">#ifndef QT_NO_OPENGL</span>
      rendererGroup<span class="operator">-</span><span class="operator">&gt;</span>addAction(m_glAction);
  <span class="preprocessor">#endif</span>
      rendererGroup<span class="operator">-</span><span class="operator">&gt;</span>addAction(m_imageAction);

      menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(rendererMenu);

      connect(rendererGroup<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="../qtwidgets/qactiongroup.html">QActionGroup</a></span><span class="operator">::</span>triggered<span class="operator">,</span>
              <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> (<span class="type"><a href="../qtwidgets/qaction.html">QAction</a></span> <span class="operator">*</span>a) { setRenderer(a<span class="operator">-</span><span class="operator">&gt;</span>data()<span class="operator">.</span>toInt()); });

      <span class="type"><a href="../qtwidgets/qmenu.html">QMenu</a></span> <span class="operator">*</span>help <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;Help&quot;</span>));
      help<span class="operator">-</span><span class="operator">&gt;</span>addAction(tr(<span class="string">&quot;About Qt&quot;</span>)<span class="operator">,</span> qApp<span class="operator">,</span> <span class="operator">&amp;</span><span class="type"><a href="../qtwidgets/qapplication.html">QApplication</a></span><span class="operator">::</span>aboutQt);

      setCentralWidget(m_view);
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>openFile()
  {
      <span class="type"><a href="../qtwidgets/qfiledialog.html">QFileDialog</a></span> fileDialog(<span class="keyword">this</span>);
      fileDialog<span class="operator">.</span>setAcceptMode(<span class="type"><a href="../qtwidgets/qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>AcceptOpen);
      fileDialog<span class="operator">.</span>setMimeTypeFilters(<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span>() <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;image/svg+xml&quot;</span> <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;image/svg+xml-compressed&quot;</span>);
      fileDialog<span class="operator">.</span>setWindowTitle(tr(<span class="string">&quot;Open SVG File&quot;</span>));
      <span class="keyword">if</span> (m_currentPath<span class="operator">.</span>isEmpty())
          fileDialog<span class="operator">.</span>setDirectory(picturesLocation());

      <span class="keyword">while</span> (fileDialog<span class="operator">.</span>exec() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtwidgets/qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>loadFile(fileDialog<span class="operator">.</span>selectedFiles()<span class="operator">.</span>constFirst()))
          ;
  }

  bool MainWindow<span class="operator">::</span>loadFile(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>fileName)
  {
      <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span><span class="operator">::</span>exists(fileName) <span class="operator">|</span><span class="operator">|</span> <span class="operator">!</span>m_view<span class="operator">-</span><span class="operator">&gt;</span>openFile(fileName)) {
          <span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>critical(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">&quot;Open SVG File&quot;</span>)<span class="operator">,</span>
                                tr(<span class="string">&quot;Could not open file '%1'.&quot;</span>)<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(fileName)));
          <span class="keyword">return</span> <span class="keyword">false</span>;
      }

      <span class="keyword">if</span> (<span class="operator">!</span>fileName<span class="operator">.</span>startsWith(<span class="string">&quot;:/&quot;</span>)) {
          m_currentPath <span class="operator">=</span> fileName;
          setWindowFilePath(fileName);
          <span class="keyword">const</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> size <span class="operator">=</span> m_view<span class="operator">-</span><span class="operator">&gt;</span>svgSize();
          <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> message <span class="operator">=</span>
              tr(<span class="string">&quot;Opened %1, %2x%3&quot;</span>)<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span>(fileName)<span class="operator">.</span>fileName())<span class="operator">.</span>arg(size<span class="operator">.</span>width())<span class="operator">.</span>arg(size<span class="operator">.</span>width());
          statusBar()<span class="operator">-</span><span class="operator">&gt;</span>showMessage(message);
      }

      m_outlineAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
      m_backgroundAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);

      <span class="keyword">const</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> availableSize <span class="operator">=</span> <span class="type"><a href="../qtwidgets/qapplication.html">QApplication</a></span><span class="operator">::</span>desktop()<span class="operator">-</span><span class="operator">&gt;</span>availableGeometry(<span class="keyword">this</span>)<span class="operator">.</span>size();
      resize(m_view<span class="operator">-</span><span class="operator">&gt;</span>sizeHint()<span class="operator">.</span>expandedTo(availableSize <span class="operator">/</span> <span class="number">4</span>) <span class="operator">+</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(<span class="number">80</span><span class="operator">,</span> <span class="number">80</span> <span class="operator">+</span> menuBar()<span class="operator">-</span><span class="operator">&gt;</span>height()));

      <span class="keyword">return</span> <span class="keyword">true</span>;
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>setRenderer(<span class="type">int</span> renderMode)
  {

      m_highQualityAntialiasingAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(renderMode <span class="operator">=</span><span class="operator">=</span> SvgView<span class="operator">::</span>OpenGL);
      m_view<span class="operator">-</span><span class="operator">&gt;</span>setRenderer(<span class="keyword">static_cast</span><span class="operator">&lt;</span>SvgView<span class="operator">::</span>RendererType<span class="operator">&gt;</span>(renderMode));
  }

  <span class="type">void</span> MainWindow<span class="operator">::</span>exportImage()
  {
      ExportDialog exportDialog(<span class="keyword">this</span>);
      exportDialog<span class="operator">.</span>setExportSize(m_view<span class="operator">-</span><span class="operator">&gt;</span>svgSize());
      <span class="type"><a href="../qtcore/qstring.html">QString</a></span> fileName;
      <span class="keyword">if</span> (m_currentPath<span class="operator">.</span>isEmpty()) {
          fileName <span class="operator">=</span> picturesLocation() <span class="operator">+</span> QLatin1String(<span class="string">&quot;/export.png&quot;</span>);
      } <span class="keyword">else</span> {
          <span class="keyword">const</span> <span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span> fi(m_currentPath);
          fileName <span class="operator">=</span> fi<span class="operator">.</span>absolutePath() <span class="operator">+</span> QLatin1Char(<span class="char">'/'</span>) <span class="operator">+</span> fi<span class="operator">.</span>baseName() <span class="operator">+</span> QLatin1String(<span class="string">&quot;.png&quot;</span>);
      }
      exportDialog<span class="operator">.</span>setExportFileName(fileName);

      <span class="keyword">while</span> (<span class="keyword">true</span>) {
          <span class="keyword">if</span> (exportDialog<span class="operator">.</span>exec() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="../qtwidgets/qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted)
              <span class="keyword">break</span>;

          <span class="keyword">const</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> imageSize <span class="operator">=</span> exportDialog<span class="operator">.</span>exportSize();
          <span class="type"><a href="../qtgui/qimage.html">QImage</a></span> image(imageSize<span class="operator">,</span> <span class="type"><a href="../qtgui/qimage.html">QImage</a></span><span class="operator">::</span>Format_ARGB32);
          image<span class="operator">.</span>fill(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>transparent);
          <span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> painter;
          painter<span class="operator">.</span>begin(<span class="operator">&amp;</span>image);
          m_view<span class="operator">-</span><span class="operator">&gt;</span>renderer()<span class="operator">-</span><span class="operator">&gt;</span>render(<span class="operator">&amp;</span>painter<span class="operator">,</span> <span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span>(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>()<span class="operator">,</span> <span class="type"><a href="../qtcore/qsizef.html">QSizeF</a></span>(imageSize)));
          painter<span class="operator">.</span>end();

          <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> fileName <span class="operator">=</span> exportDialog<span class="operator">.</span>exportFileName();
          <span class="keyword">if</span> (image<span class="operator">.</span>save(fileName)) {

              <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> message <span class="operator">=</span> tr(<span class="string">&quot;Exported %1, %2x%3, %4 bytes&quot;</span>)
                  <span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(fileName))<span class="operator">.</span>arg(imageSize<span class="operator">.</span>width())<span class="operator">.</span>arg(imageSize<span class="operator">.</span>height())
                  <span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span>(fileName)<span class="operator">.</span>size());
              statusBar()<span class="operator">-</span><span class="operator">&gt;</span>showMessage(message);
              <span class="keyword">break</span>;
          } <span class="keyword">else</span> {
              <span class="type"><a href="../qtwidgets/qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>critical(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">&quot;Export Image&quot;</span>)<span class="operator">,</span>
                                    tr(<span class="string">&quot;Could not write file '%1'.&quot;</span>)<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(fileName)));
          }
      }
  }

</pre>
</div>
<!-- @@@svgviewer/mainwindow.cpp -->
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   <acronym title="Copyright">&copy;</acronym> 2017 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
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