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<h1 class="title">shapedclock.cpp Example File</h1>
<span class="small-subtitle">widgets/shapedclock/shapedclock.cpp</span>
<!-- $$$widgets/shapedclock/shapedclock.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
** 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;QtGui&gt;</span>
<span class="preprocessor">#include &quot;shapedclock.h&quot;</span>
ShapedClock<span class="operator">::</span>ShapedClock(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent)
: <span class="type"><a href="qwidget.html">QWidget</a></span>(parent<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>WindowSystemMenuHint)
{
<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(update()));
timer<span class="operator">-</span><span class="operator">&gt;</span>start(<span class="number">1000</span>);
<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>setShortcut(tr(<span class="string">&quot;Ctrl+Q&quot;</span>));
connect(quitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(quit()));
addAction(quitAction);
setContextMenuPolicy(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
setToolTip(tr(<span class="string">&quot;Drag the clock with the left mouse button.\n&quot;</span>
<span class="string">&quot;Use the right mouse button to open a context menu.&quot;</span>));
setWindowTitle(tr(<span class="string">&quot;Shaped Analog Clock&quot;</span>));
}
<span class="type">void</span> ShapedClock<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) {
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> ShapedClock<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> dragPosition);
event<span class="operator">-</span><span class="operator">&gt;</span>accept();
}
}
<span class="type">void</span> ShapedClock<span class="operator">::</span>paintEvent(<span class="type"><a href="qpaintevent.html">QPaintEvent</a></span> <span class="operator">*</span>)
{
<span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> hourHand<span class="operator">[</span><span class="number">3</span><span class="operator">]</span> <span class="operator">=</span> {
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">7</span><span class="operator">,</span> <span class="number">8</span>)<span class="operator">,</span>
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="operator">-</span><span class="number">7</span><span class="operator">,</span> <span class="number">8</span>)<span class="operator">,</span>
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">40</span>)
};
<span class="keyword">static</span> <span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> minuteHand<span class="operator">[</span><span class="number">3</span><span class="operator">]</span> <span class="operator">=</span> {
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">7</span><span class="operator">,</span> <span class="number">8</span>)<span class="operator">,</span>
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="operator">-</span><span class="number">7</span><span class="operator">,</span> <span class="number">8</span>)<span class="operator">,</span>
<span class="type"><a href="qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">70</span>)
};
<span class="type"><a href="qcolor.html">QColor</a></span> hourColor(<span class="number">127</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">127</span>);
<span class="type"><a href="qcolor.html">QColor</a></span> minuteColor(<span class="number">0</span><span class="operator">,</span> <span class="number">127</span><span class="operator">,</span> <span class="number">127</span><span class="operator">,</span> <span class="number">191</span>);
<span class="type">int</span> side <span class="operator">=</span> <a href="qtglobal.html#qMin">qMin</a>(width()<span class="operator">,</span> height());
<span class="type"><a href="qtime.html">QTime</a></span> time <span class="operator">=</span> <span class="type"><a href="qtime.html">QTime</a></span><span class="operator">::</span>currentTime();
<span class="type"><a href="qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>);
painter<span class="operator">.</span>setRenderHint(<span class="type"><a href="qpainter.html">QPainter</a></span><span class="operator">::</span>Antialiasing);
painter<span class="operator">.</span>translate(width() <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> height() <span class="operator">/</span> <span class="number">2</span>);
painter<span class="operator">.</span>scale(side <span class="operator">/</span> <span class="number">200.0</span><span class="operator">,</span> side <span class="operator">/</span> <span class="number">200.0</span>);
painter<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoPen);
painter<span class="operator">.</span>setBrush(hourColor);
painter<span class="operator">.</span>save();
painter<span class="operator">.</span>rotate(<span class="number">30.0</span> <span class="operator">*</span> ((time<span class="operator">.</span>hour() <span class="operator">+</span> time<span class="operator">.</span>minute() <span class="operator">/</span> <span class="number">60.0</span>)));
painter<span class="operator">.</span>drawConvexPolygon(hourHand<span class="operator">,</span> <span class="number">3</span>);
painter<span class="operator">.</span>restore();
painter<span class="operator">.</span>setPen(hourColor);
<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> <span class="number">12</span>; <span class="operator">+</span><span class="operator">+</span>i) {
painter<span class="operator">.</span>drawLine(<span class="number">88</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">96</span><span class="operator">,</span> <span class="number">0</span>);
painter<span class="operator">.</span>rotate(<span class="number">30.0</span>);
}
painter<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>NoPen);
painter<span class="operator">.</span>setBrush(minuteColor);
painter<span class="operator">.</span>save();
painter<span class="operator">.</span>rotate(<span class="number">6.0</span> <span class="operator">*</span> (time<span class="operator">.</span>minute() <span class="operator">+</span> time<span class="operator">.</span>second() <span class="operator">/</span> <span class="number">60.0</span>));
painter<span class="operator">.</span>drawConvexPolygon(minuteHand<span class="operator">,</span> <span class="number">3</span>);
painter<span class="operator">.</span>restore();
painter<span class="operator">.</span>setPen(minuteColor);
<span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator">&lt;</span> <span class="number">60</span>; <span class="operator">+</span><span class="operator">+</span>j) {
<span class="keyword">if</span> ((j <span class="operator">%</span> <span class="number">5</span>) <span class="operator">!</span><span class="operator">=</span> <span class="number">0</span>)
painter<span class="operator">.</span>drawLine(<span class="number">92</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">96</span><span class="operator">,</span> <span class="number">0</span>);
painter<span class="operator">.</span>rotate(<span class="number">6.0</span>);
}
}
<span class="type">void</span> ShapedClock<span class="operator">::</span>resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span> <span class="comment">/* event */</span>)
{
<span class="type">int</span> side <span class="operator">=</span> <a href="qtglobal.html#qMin">qMin</a>(width()<span class="operator">,</span> height());
<span class="type"><a href="qregion.html">QRegion</a></span> maskedRegion(width() <span class="operator">/</span> <span class="number">2</span> <span class="operator">-</span> side <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> height() <span class="operator">/</span> <span class="number">2</span> <span class="operator">-</span> side <span class="operator">/</span> <span class="number">2</span><span class="operator">,</span> side<span class="operator">,</span>
side<span class="operator">,</span> <span class="type"><a href="qregion.html">QRegion</a></span><span class="operator">::</span>Ellipse);
setMask(maskedRegion);
}
<span class="type"><a href="qsize.html">QSize</a></span> ShapedClock<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">100</span><span class="operator">,</span> <span class="number">100</span>);
}</pre>
</div>
<!-- @@@widgets/shapedclock/shapedclock.cpp -->
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