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qt4-x11/doc/html/xmlpatterns-trafficinfo-mainwindow-cpp.html
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<?xml version="1.0" encoding="UTF-8"?>
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<h1 class="title">mainwindow.cpp Example File</h1>
<span class="small-subtitle">xmlpatterns/trafficinfo/mainwindow.cpp</span>
<!-- $$$xmlpatterns/trafficinfo/mainwindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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
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** * Redistributions in binary form must reproduce the above copyright
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** 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
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** 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 &quot;mainwindow.h&quot;</span>
<span class="preprocessor">#include &quot;stationdialog.h&quot;</span>
<span class="preprocessor">#include &lt;QtCore/QSettings&gt;</span>
<span class="preprocessor">#include &lt;QtCore/QTimer&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QAction&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QApplication&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QBitmap&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QLinearGradient&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QMouseEvent&gt;</span>
<span class="preprocessor">#include &lt;QtGui/QPainter&gt;</span>
MainWindow<span class="operator">::</span>MainWindow()
: <span class="type"><a href="qwidget.html">QWidget</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>FramelessWindowHint <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WindowStaysOnTopHint)
{
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>quitAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">&quot;E&amp;xit&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
quitAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcuts(<span class="type"><a href="qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit);
connect(quitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit()));
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>configAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">&quot;&amp;Select station...&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
configAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+C&quot;</span>));
connect(configAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(configure()));
addAction(configAction);
addAction(quitAction);
setContextMenuPolicy(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
setWindowTitle(tr(<span class="string">&quot;Traffic Info Oslo&quot;</span>));
<span class="keyword">const</span> <span class="type"><a href="qsettings.html">QSettings</a></span> settings(<span class="string">&quot;Qt Traffic Info&quot;</span><span class="operator">,</span> <span class="string">&quot;trafficinfo&quot;</span>);
m_station <span class="operator">=</span> StationInformation(settings<span class="operator">.</span>value(<span class="string">&quot;stationId&quot;</span><span class="operator">,</span> <span class="string">&quot;03012130&quot;</span>)<span class="operator">.</span>toString()<span class="operator">,</span>
settings<span class="operator">.</span>value(<span class="string">&quot;stationName&quot;</span><span class="operator">,</span> <span class="string">&quot;Nydalen [T-bane] (OSL)&quot;</span>)<span class="operator">.</span>toString());
m_lines <span class="operator">=</span> settings<span class="operator">.</span>value(<span class="string">&quot;lines&quot;</span><span class="operator">,</span> <span class="type"><a href="qstringlist.html">QStringList</a></span>())<span class="operator">.</span>toStringList();
<span class="type"><a href="qtimer.html">QTimer</a></span> <span class="operator">*</span>timer <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtimer.html">QTimer</a></span>(<span class="keyword">this</span>);
connect(timer<span class="operator">,</span> SIGNAL(timeout())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(updateTimeInformation()));
timer<span class="operator">-</span><span class="operator">&gt;</span>start(<span class="number">1000</span><span class="operator">*</span><span class="number">60</span><span class="operator">*</span><span class="number">5</span>);
<span class="type"><a href="qmetaobject.html">QMetaObject</a></span><span class="operator">::</span>invokeMethod(<span class="keyword">this</span><span class="operator">,</span> SLOT(updateTimeInformation())<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>QueuedConnection);
}
MainWindow<span class="operator">::</span><span class="operator">~</span>MainWindow()
{
<span class="type"><a href="qsettings.html">QSettings</a></span> settings(<span class="string">&quot;Qt Traffic Info&quot;</span><span class="operator">,</span> <span class="string">&quot;trafficinfo&quot;</span>);
settings<span class="operator">.</span>setValue(<span class="string">&quot;stationId&quot;</span><span class="operator">,</span> m_station<span class="operator">.</span>id());
settings<span class="operator">.</span>setValue(<span class="string">&quot;stationName&quot;</span><span class="operator">,</span> m_station<span class="operator">.</span>name());
settings<span class="operator">.</span>setValue(<span class="string">&quot;lines&quot;</span><span class="operator">,</span> m_lines);
}
<span class="type"><a href="qsize.html">QSize</a></span> MainWindow<span class="operator">::</span>sizeHint() <span class="keyword">const</span>
{
<span class="keyword">return</span> <span class="type"><a href="qsize.html">QSize</a></span>(<span class="number">300</span><span class="operator">,</span> <span class="number">200</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>mouseMoveEvent(<span class="type"><a href="qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>event)
{
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">&gt;</span>buttons() <span class="operator">&amp;</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>LeftButton) {
move(event<span class="operator">-</span><span class="operator">&gt;</span>globalPos() <span class="operator">-</span> m_dragPosition);
event<span class="operator">-</span><span class="operator">&gt;</span>accept();
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>mousePressEvent(<span class="type"><a href="qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>event)
{
<span class="keyword">if</span> (event<span class="operator">-</span><span class="operator">&gt;</span>button() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>LeftButton) {
m_dragPosition <span class="operator">=</span> event<span class="operator">-</span><span class="operator">&gt;</span>globalPos() <span class="operator">-</span> frameGeometry()<span class="operator">.</span>topLeft();
event<span class="operator">-</span><span class="operator">&gt;</span>accept();
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>paintEvent(<span class="type"><a href="qpaintevent.html">QPaintEvent</a></span><span class="operator">*</span>)
{
<span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> start(width()<span class="operator">/</span><span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
<span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> finalStop(width()<span class="operator">/</span><span class="number">2</span><span class="operator">,</span> height());
<span class="type"><a href="qlineargradient.html">QLinearGradient</a></span> gradient(start<span class="operator">,</span> finalStop);
<span class="keyword">const</span> <span class="type"><a href="qcolor.html">QColor</a></span> qtGreen(<span class="number">102</span><span class="operator">,</span> <span class="number">176</span><span class="operator">,</span> <span class="number">54</span>);
gradient<span class="operator">.</span>setColorAt(<span class="number">0</span><span class="operator">,</span> qtGreen<span class="operator">.</span>dark());
gradient<span class="operator">.</span>setColorAt(<span class="number">0.5</span><span class="operator">,</span> qtGreen);
gradient<span class="operator">.</span>setColorAt(<span class="number">1</span><span class="operator">,</span> qtGreen<span class="operator">.</span>dark());
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
p<span class="operator">.</span>fillRect(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> width()<span class="operator">,</span> height()<span class="operator">,</span> gradient);
<span class="type"><a href="qfont.html">QFont</a></span> headerFont(<span class="string">&quot;Sans Serif&quot;</span><span class="operator">,</span> <span class="number">12</span><span class="operator">,</span> <span class="type"><a href="qfont.html">QFont</a></span><span class="operator">::</span>Bold);
<span class="type"><a href="qfont.html">QFont</a></span> normalFont(<span class="string">&quot;Sans Serif&quot;</span><span class="operator">,</span> <span class="number">9</span><span class="operator">,</span> <span class="type"><a href="qfont.html">QFont</a></span><span class="operator">::</span>Normal);
<span class="comment">// draw it twice for shadow effect</span>
p<span class="operator">.</span>setFont(headerFont);
<span class="type"><a href="qrect.html">QRect</a></span> headerRect(<span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> width()<span class="operator">,</span> <span class="number">25</span>);
p<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
p<span class="operator">.</span>drawText(headerRect<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter<span class="operator">,</span> m_station<span class="operator">.</span>name());
headerRect<span class="operator">.</span>moveTopLeft(<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>));
p<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white);
p<span class="operator">.</span>drawText(headerRect<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter<span class="operator">,</span> m_station<span class="operator">.</span>name());
p<span class="operator">.</span>setFont(normalFont);
<span class="type">int</span> pos <span class="operator">=</span> <span class="number">40</span>;
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> m_times<span class="operator">.</span>count() <span class="operator">&amp;</span><span class="operator">&amp;</span> i <span class="operator">&lt;</span> <span class="number">9</span>; <span class="operator">+</span><span class="operator">+</span>i) {
p<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
p<span class="operator">.</span>drawText(<span class="number">51</span><span class="operator">,</span> pos <span class="operator">+</span> <span class="number">1</span><span class="operator">,</span> m_times<span class="operator">.</span>at(i)<span class="operator">.</span>time());
p<span class="operator">.</span>drawText(<span class="number">101</span><span class="operator">,</span> pos <span class="operator">+</span> <span class="number">1</span><span class="operator">,</span> m_times<span class="operator">.</span>at(i)<span class="operator">.</span>direction());
p<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white);
p<span class="operator">.</span>drawText(<span class="number">50</span><span class="operator">,</span> pos<span class="operator">,</span> m_times<span class="operator">.</span>at(i)<span class="operator">.</span>time());
p<span class="operator">.</span>drawText(<span class="number">100</span><span class="operator">,</span> pos<span class="operator">,</span> m_times<span class="operator">.</span>at(i)<span class="operator">.</span>direction());
pos <span class="operator">+</span><span class="operator">=</span> <span class="number">18</span>;
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span><span class="operator">*</span>)
{
<span class="type"><a href="qbitmap.html">QBitmap</a></span> maskBitmap(width()<span class="operator">,</span> height());
maskBitmap<span class="operator">.</span>clear();
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="operator">&amp;</span>maskBitmap);
p<span class="operator">.</span>setBrush(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black);
p<span class="operator">.</span>drawRoundRect(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> width()<span class="operator">,</span> height()<span class="operator">,</span> <span class="number">20</span><span class="operator">,</span> <span class="number">30</span>);
p<span class="operator">.</span>end();
setMask(maskBitmap);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>updateTimeInformation()
{
m_times <span class="operator">=</span> TimeQuery<span class="operator">::</span>query(m_station<span class="operator">.</span>id()<span class="operator">,</span> m_lines<span class="operator">,</span> <span class="type"><a href="qdatetime.html">QDateTime</a></span><span class="operator">::</span>currentDateTime());
update();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>configure()
{
StationDialog dlg(m_station<span class="operator">.</span>name()<span class="operator">,</span> m_lines<span class="operator">,</span> <span class="keyword">this</span>);
<span class="keyword">if</span> (dlg<span class="operator">.</span>exec()) {
m_station <span class="operator">=</span> dlg<span class="operator">.</span>selectedStation();
m_lines <span class="operator">=</span> dlg<span class="operator">.</span>lineNumbers();
updateTimeInformation();
}
}</pre>
</div>
<!-- @@@xmlpatterns/trafficinfo/mainwindow.cpp -->
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<acronym title="Copyright">&copy;</acronym> 2015 The Qt Company Ltd.
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