Sophie: qtbase5-doc-5.9.4-1.1.mga6 noarch

qtbase5-doc-5.9.4-1.1.mga6.noarch.rpm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>chatdialog.cpp Example File | Qt Network 5.9</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.9</td><td ><a href="qtnetwork-index.html">Qt Network</a></td><td ><a href="qtnetwork-network-chat-example.html">Network Chat Example</a></td><td >chatdialog.cpp Example File</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">chatdialog.cpp Example File</h1>
<span class="subtitle">network-chat/chatdialog.cpp</span>
<!-- $$$network-chat/chatdialog.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/
  **
  ** 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,
  ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ** (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 &lt;QtWidgets&gt;</span>

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

  ChatDialog<span class="operator">::</span>ChatDialog(<span class="type">QWidget</span> <span class="operator">*</span>parent)
      : <span class="type">QDialog</span>(parent)
  {
      setupUi(<span class="keyword">this</span>);

      lineEdit<span class="operator">-</span><span class="operator">&gt;</span>setFocusPolicy(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>StrongFocus);
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setFocusPolicy(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>NoFocus);
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setReadOnly(<span class="keyword">true</span>);
      listWidget<span class="operator">-</span><span class="operator">&gt;</span>setFocusPolicy(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>NoFocus);

      connect(lineEdit<span class="operator">,</span> SIGNAL(returnPressed())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(returnPressed()));
      connect(lineEdit<span class="operator">,</span> SIGNAL(returnPressed())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(returnPressed()));
      connect(<span class="operator">&amp;</span>client<span class="operator">,</span> SIGNAL(newMessage(<span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
              <span class="keyword">this</span><span class="operator">,</span> SLOT(appendMessage(<span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">,</span><span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));
      connect(<span class="operator">&amp;</span>client<span class="operator">,</span> SIGNAL(newParticipant(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
              <span class="keyword">this</span><span class="operator">,</span> SLOT(newParticipant(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));
      connect(<span class="operator">&amp;</span>client<span class="operator">,</span> SIGNAL(participantLeft(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>))<span class="operator">,</span>
              <span class="keyword">this</span><span class="operator">,</span> SLOT(participantLeft(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>)));

      myNickName <span class="operator">=</span> client<span class="operator">.</span>nickName();
      newParticipant(myNickName);
      tableFormat<span class="operator">.</span>setBorder(<span class="number">0</span>);
      <span class="type"><a href="../qtcore/qtimer.html">QTimer</a></span><span class="operator">::</span>singleShot(<span class="number">10</span> <span class="operator">*</span> <span class="number">1000</span><span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(showInformation()));
  }

  <span class="type">void</span> ChatDialog<span class="operator">::</span>appendMessage(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>from<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>message)
  {
      <span class="keyword">if</span> (from<span class="operator">.</span>isEmpty() <span class="operator">|</span><span class="operator">|</span> message<span class="operator">.</span>isEmpty())
          <span class="keyword">return</span>;

      <span class="type"><a href="../qtgui/qtextcursor.html">QTextCursor</a></span> cursor(textEdit<span class="operator">-</span><span class="operator">&gt;</span>textCursor());
      cursor<span class="operator">.</span>movePosition(<span class="type"><a href="../qtgui/qtextcursor.html">QTextCursor</a></span><span class="operator">::</span>End);
      <span class="type"><a href="../qtgui/qtexttable.html">QTextTable</a></span> <span class="operator">*</span>table <span class="operator">=</span> cursor<span class="operator">.</span>insertTable(<span class="number">1</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> tableFormat);
      table<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>firstCursorPosition()<span class="operator">.</span>insertText(<span class="char">'&lt;'</span> <span class="operator">+</span> from <span class="operator">+</span> <span class="string">&quot;&gt; &quot;</span>);
      table<span class="operator">-</span><span class="operator">&gt;</span>cellAt(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span>)<span class="operator">.</span>firstCursorPosition()<span class="operator">.</span>insertText(message);
      <span class="type">QScrollBar</span> <span class="operator">*</span>bar <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">&gt;</span>verticalScrollBar();
      bar<span class="operator">-</span><span class="operator">&gt;</span>setValue(bar<span class="operator">-</span><span class="operator">&gt;</span>maximum());
  }

  <span class="type">void</span> ChatDialog<span class="operator">::</span>returnPressed()
  {
      <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="keyword">return</span>;

      <span class="keyword">if</span> (text<span class="operator">.</span>startsWith(<span class="type"><a href="../qtcore/qchar.html">QChar</a></span>(<span class="char">'/'</span>))) {
          <span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> color <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">&gt;</span>textColor();
          textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>red);
          textEdit<span class="operator">-</span><span class="operator">&gt;</span>append(tr(<span class="string">&quot;! Unknown command: %1&quot;</span>)
                           <span class="operator">.</span>arg(text<span class="operator">.</span>left(text<span class="operator">.</span>indexOf(<span class="char">' '</span>))));
          textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(color);
      } <span class="keyword">else</span> {
          client<span class="operator">.</span>sendMessage(text);
          appendMessage(myNickName<span class="operator">,</span> text);
      }

      lineEdit<span class="operator">-</span><span class="operator">&gt;</span>clear();
  }

  <span class="type">void</span> ChatDialog<span class="operator">::</span>newParticipant(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>nick)
  {
      <span class="keyword">if</span> (nick<span class="operator">.</span>isEmpty())
          <span class="keyword">return</span>;

      <span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> color <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">&gt;</span>textColor();
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>gray);
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>append(tr(<span class="string">&quot;* %1 has joined&quot;</span>)<span class="operator">.</span>arg(nick));
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(color);
      listWidget<span class="operator">-</span><span class="operator">&gt;</span>addItem(nick);
  }

  <span class="type">void</span> ChatDialog<span class="operator">::</span>participantLeft(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&amp;</span>nick)
  {
      <span class="keyword">if</span> (nick<span class="operator">.</span>isEmpty())
          <span class="keyword">return</span>;

      <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator">&lt;</span><span class="type">QListWidgetItem</span> <span class="operator">*</span><span class="operator">&gt;</span> items <span class="operator">=</span> listWidget<span class="operator">-</span><span class="operator">&gt;</span>findItems(nick<span class="operator">,</span>
                                                             <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>MatchExactly);
      <span class="keyword">if</span> (items<span class="operator">.</span>isEmpty())
          <span class="keyword">return</span>;

      <span class="keyword">delete</span> items<span class="operator">.</span>at(<span class="number">0</span>);
      <span class="type"><a href="../qtgui/qcolor.html">QColor</a></span> color <span class="operator">=</span> textEdit<span class="operator">-</span><span class="operator">&gt;</span>textColor();
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>gray);
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>append(tr(<span class="string">&quot;* %1 has left&quot;</span>)<span class="operator">.</span>arg(nick));
      textEdit<span class="operator">-</span><span class="operator">&gt;</span>setTextColor(color);
  }

  <span class="type">void</span> ChatDialog<span class="operator">::</span>showInformation()
  {
      <span class="keyword">if</span> (listWidget<span class="operator">-</span><span class="operator">&gt;</span>count() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>) {
          <span class="type">QMessageBox</span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">&quot;Chat&quot;</span>)<span class="operator">,</span>
                                   tr(<span class="string">&quot;Launch several instances of this &quot;</span>
                                      <span class="string">&quot;program on your local network and &quot;</span>
                                      <span class="string">&quot;start chatting!&quot;</span>));
      }
  }

</pre>
</div>
<!-- @@@network-chat/chatdialog.cpp -->
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <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
   of their respective owners. </p>
</div>
</body>
</html>