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<h1 class="title">bitratebox.cpp Example File</h1>
<span class="subtitle">can/bitratebox.cpp</span>
<!-- $$$can/bitratebox.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2017 Andre Hartmann <aha_1980@gmx.de>
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the QtSerialBus module.
**
** $QT_BEGIN_LICENSE:BSD$
** 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:
**
** "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
** "AS IS" 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "bitratebox.h"</span>
<span class="preprocessor">#include <QLineEdit></span>
BitRateBox<span class="operator">::</span>BitRateBox(<span class="type">QWidget</span> <span class="operator">*</span>parent) :
<span class="type">QComboBox</span>(parent)<span class="operator">,</span>
m_customSpeedValidator(<span class="keyword">new</span> <span class="type">QIntValidator</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">1000000</span><span class="operator">,</span> <span class="keyword">this</span>))
{
fillBitRates();
connect(<span class="keyword">this</span><span class="operator">,</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span> (<span class="type">QComboBox</span><span class="operator">::</span><span class="operator">*</span>)(<span class="type">int</span>)<span class="operator">></span>(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>BitRateBox<span class="operator">::</span>checkCustomSpeedPolicy);
}
BitRateBox<span class="operator">::</span><span class="operator">~</span>BitRateBox()
{
<span class="keyword">delete</span> m_customSpeedValidator;
}
<span class="type">int</span> BitRateBox<span class="operator">::</span>bitRate() <span class="keyword">const</span>
{
<span class="keyword">if</span> (currentIndex() <span class="operator">=</span><span class="operator">=</span> (count() <span class="operator">-</span> <span class="number">1</span>))
<span class="keyword">return</span> currentText()<span class="operator">.</span>toInt();
<span class="keyword">return</span> itemData(currentIndex())<span class="operator">.</span>toInt();
}
bool BitRateBox<span class="operator">::</span>isFlexibleDataRateEnabled() <span class="keyword">const</span>
{
<span class="keyword">return</span> m_isFlexibleDataRateEnabled;
}
<span class="type">void</span> BitRateBox<span class="operator">::</span>setFlexibleDateRateEnabled(bool enabled)
{
m_isFlexibleDataRateEnabled <span class="operator">=</span> enabled;
m_customSpeedValidator<span class="operator">-</span><span class="operator">></span>setTop(enabled <span class="operator">?</span> <span class="number">10000000</span> : <span class="number">1000000</span>);
fillBitRates();
}
<span class="type">void</span> BitRateBox<span class="operator">::</span>checkCustomSpeedPolicy(<span class="type">int</span> idx)
{
<span class="keyword">const</span> bool isCustomSpeed <span class="operator">=</span> <span class="operator">!</span>itemData(idx)<span class="operator">.</span>isValid();
setEditable(isCustomSpeed);
<span class="keyword">if</span> (isCustomSpeed) {
clearEditText();
lineEdit()<span class="operator">-</span><span class="operator">></span>setValidator(m_customSpeedValidator);
}
}
<span class="type">void</span> BitRateBox<span class="operator">::</span>fillBitRates()
{
<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span> rates <span class="operator">=</span> {
<span class="number">10000</span><span class="operator">,</span> <span class="number">20000</span><span class="operator">,</span> <span class="number">50000</span><span class="operator">,</span> <span class="number">100000</span><span class="operator">,</span> <span class="number">125000</span><span class="operator">,</span> <span class="number">250000</span><span class="operator">,</span> <span class="number">500000</span><span class="operator">,</span> <span class="number">800000</span><span class="operator">,</span> <span class="number">1000000</span>
};
<span class="keyword">const</span> <span class="type">QList</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span> dataRates <span class="operator">=</span> {
<span class="number">2000000</span><span class="operator">,</span> <span class="number">4000000</span><span class="operator">,</span> <span class="number">8000000</span>
};
clear();
<span class="keyword">for</span> (<span class="type">int</span> rate : rates)
addItem(<span class="type">QString</span><span class="operator">::</span>number(rate)<span class="operator">,</span> rate);
<span class="keyword">if</span> (isFlexibleDataRateEnabled()) {
<span class="keyword">for</span> (<span class="type">int</span> rate : dataRates)
addItem(<span class="type">QString</span><span class="operator">::</span>number(rate)<span class="operator">,</span> rate);
}
addItem(tr(<span class="string">"Custom"</span>));
setCurrentIndex(<span class="number">6</span>); <span class="comment">// default is 500000 bits/sec</span>
}
</pre>
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<!-- @@@can/bitratebox.cpp -->
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distrib
>
Mageia
>
6
>
x86_64
>
media
>
core-updates
>
by-pkgid
>
3214e0cac2e902da44e71b50fa86ebb6
>
files
>
85
