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<h1 class="title">testwidget.cpp Example File</h1>
<span class="small-subtitle">widgets/elidedlabel/testwidget.cpp</span>
<!-- $$$widgets/elidedlabel/testwidget.cpp-description -->
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<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 QtCore module 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;
**
** $QT_END_LICENSE$
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****************************************************************************/</span>
<span class="preprocessor">#include &quot;testwidget.h&quot;</span>
<span class="preprocessor">#include &quot;elidedlabel.h&quot;</span>
<span class="preprocessor">#include &lt;QLabel&gt;</span>
<span class="preprocessor">#include &lt;QPushButton&gt;</span>
<span class="preprocessor">#include &lt;QSizePolicy&gt;</span>
<span class="preprocessor">#include &lt;QGridLayout&gt;</span>
TestWidget<span class="operator">::</span>TestWidget(<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="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> romeo <span class="operator">=</span> tr(
<span class="string">&quot;But soft, what light through yonder window breaks? / &quot;</span>
<span class="string">&quot;It is the east, and Juliet is the sun. / &quot;</span>
<span class="string">&quot;Arise, fair sun, and kill the envious moon, / &quot;</span>
<span class="string">&quot;Who is already sick and pale with grief / &quot;</span>
<span class="string">&quot;That thou, her maid, art far more fair than she.&quot;</span>
);
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> macbeth <span class="operator">=</span> tr(
<span class="string">&quot;To-morrow, and to-morrow, and to-morrow, / &quot;</span>
<span class="string">&quot;Creeps in this petty pace from day to day, / &quot;</span>
<span class="string">&quot;To the last syllable of recorded time; / &quot;</span>
<span class="string">&quot;And all our yesterdays have lighted fools / &quot;</span>
<span class="string">&quot;The way to dusty death. Out, out, brief candle! / &quot;</span>
<span class="string">&quot;Life's but a walking shadow, a poor player, / &quot;</span>
<span class="string">&quot;That struts and frets his hour upon the stage, / &quot;</span>
<span class="string">&quot;And then is heard no more. It is a tale / &quot;</span>
<span class="string">&quot;Told by an idiot, full of sound and fury, / &quot;</span>
<span class="string">&quot;Signifying nothing.&quot;</span>
);
<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> harry <span class="operator">=</span> tr(<span class="string">&quot;Feeling lucky, punk?&quot;</span>);
textSamples <span class="operator">&lt;</span><span class="operator">&lt;</span> romeo <span class="operator">&lt;</span><span class="operator">&lt;</span> macbeth <span class="operator">&lt;</span><span class="operator">&lt;</span> harry;
sampleIndex <span class="operator">=</span> <span class="number">0</span>;
elidedText <span class="operator">=</span> <span class="keyword">new</span> ElidedLabel(textSamples<span class="operator">[</span>sampleIndex<span class="operator">]</span><span class="operator">,</span> <span class="keyword">this</span>);
elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFrameStyle(<span class="type"><a href="qframe.html">QFrame</a></span><span class="operator">::</span>Box);
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>switchButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Switch text&quot;</span>));
connect(switchButton<span class="operator">,</span> SIGNAL(clicked(<span class="type">bool</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(switchText()));
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>exitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">&quot;Exit&quot;</span>));
connect(exitButton<span class="operator">,</span> SIGNAL(clicked(<span class="type">bool</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close()));
<span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>label <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">&quot;Elided&quot;</span>));
label<span class="operator">-</span><span class="operator">&gt;</span>setVisible(elidedText<span class="operator">-</span><span class="operator">&gt;</span>isElided());
connect(elidedText<span class="operator">,</span> SIGNAL(elisionChanged(<span class="type">bool</span>))<span class="operator">,</span> label<span class="operator">,</span> SLOT(setVisible(<span class="type">bool</span>)));
widthSlider <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Horizontal);
widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setMinimum(<span class="number">0</span>);
connect(widthSlider<span class="operator">,</span> SIGNAL(valueChanged(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(onWidthChanged(<span class="type">int</span>)));
heightSlider <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Vertical);
heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setInvertedAppearance(<span class="keyword">true</span>);
heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setMinimum(<span class="number">0</span>);
connect(heightSlider<span class="operator">,</span> SIGNAL(valueChanged(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(onHeightChanged(<span class="type">int</span>)));
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>();
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(label<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(switchButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">2</span>);
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(exitButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">3</span>);
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(widthSlider<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>);
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(heightSlider<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
layout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(elidedText<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignTop <span class="operator">|</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignLeft);
setLayout(layout);
<span class="preprocessor">#ifdef Q_WS_MAEMO_5</span>
setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_Maemo5AutoOrientation<span class="operator">,</span> <span class="keyword">true</span>);
<span class="preprocessor">#endif</span>
}
<span class="type">void</span> TestWidget<span class="operator">::</span>resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span>event)
{
Q_UNUSED(event)
<span class="type">int</span> maxWidth <span class="operator">=</span> widthSlider<span class="operator">-</span><span class="operator">&gt;</span>width();
widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setMaximum(maxWidth);
widthSlider<span class="operator">-</span><span class="operator">&gt;</span>setValue(maxWidth <span class="operator">/</span> <span class="number">2</span>);
<span class="type">int</span> maxHeight <span class="operator">=</span> heightSlider<span class="operator">-</span><span class="operator">&gt;</span>height();
heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setMaximum(maxHeight);
heightSlider<span class="operator">-</span><span class="operator">&gt;</span>setValue(maxHeight <span class="operator">/</span> <span class="number">2</span>);
elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedSize(widthSlider<span class="operator">-</span><span class="operator">&gt;</span>value()<span class="operator">,</span> heightSlider<span class="operator">-</span><span class="operator">&gt;</span>value());
}
<span class="type">void</span> TestWidget<span class="operator">::</span>switchText()
{
sampleIndex <span class="operator">=</span> (sampleIndex <span class="operator">+</span> <span class="number">1</span>) <span class="operator">%</span> textSamples<span class="operator">.</span>size();
elidedText<span class="operator">-</span><span class="operator">&gt;</span>setText(textSamples<span class="operator">.</span>at(sampleIndex));
}
<span class="type">void</span> TestWidget<span class="operator">::</span>onWidthChanged(<span class="type">int</span> width)
{
elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedWidth(width);
}
<span class="type">void</span> TestWidget<span class="operator">::</span>onHeightChanged(<span class="type">int</span> height)
{
elidedText<span class="operator">-</span><span class="operator">&gt;</span>setFixedHeight(height);
}</pre>
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<!-- @@@widgets/elidedlabel/testwidget.cpp -->
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