<?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>bitratebox.cpp Example File | Qt Serial Bus 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="qtserialbus-index.html">Qt Serial Bus</a></td><td ><a href="qtserialbus-can-example.html">CAN Bus example</a></td><td >bitratebox.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">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> </div> <!-- @@@can/bitratebox.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</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>