<?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>mainwindow.cpp Example File | Qt SCXML 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="qtscxml-index.html">Qt SCXML</a></td><td ><a href="qtscxml-sudoku-example.html">Qt SCXML Sudoku Example</a></td><td >mainwindow.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">mainwindow.cpp Example File</h1> <span class="subtitle">sudoku/mainwindow.cpp</span> <!-- $$$sudoku/mainwindow.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtScxml module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 "mainwindow.h"</span> <span class="preprocessor">#include <QStringListModel></span> <span class="preprocessor">#include <QScxmlStateMachine></span> <span class="preprocessor">#include <QComboBox></span> <span class="preprocessor">#include <QToolButton></span> <span class="preprocessor">#include <QLabel></span> <span class="preprocessor">#include <QGridLayout></span> <span class="preprocessor">#include <QFile></span> <span class="preprocessor">#include <QDir></span> <span class="preprocessor">#include <QTextStream></span> <span class="keyword">static</span> <span class="type">int</span> Size <span class="operator">=</span> <span class="number">9</span>; QT_USE_NAMESPACE <span class="keyword">static</span> <span class="type">QVariantList</span> emptyRow() { <span class="type">QVariantList</span> row; <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> Size; i<span class="operator">+</span><span class="operator">+</span>) row<span class="operator">.</span>append(<span class="type">QVariant</span>(<span class="number">0</span>)); <span class="keyword">return</span> row; } <span class="keyword">static</span> <span class="type">QVariantMap</span> readSudoku(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>fileName) { <span class="type">QFile</span> input(fileName); input<span class="operator">.</span>open(<span class="type">QIODevice</span><span class="operator">::</span>ReadOnly <span class="operator">|</span> <span class="type">QIODevice</span><span class="operator">::</span>Text); <span class="type">QTextStream</span> str(<span class="operator">&</span>input); <span class="keyword">const</span> <span class="type">QString</span> data <span class="operator">=</span> str<span class="operator">.</span>readAll(); <span class="type">QVariantList</span> initRowsVariant; <span class="keyword">const</span> <span class="type">QStringList</span> rows <span class="operator">=</span> data<span class="operator">.</span>split(QLatin1Char(<span class="char">'\n'</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"><</span> Size; i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">if</span> (i <span class="operator"><</span> rows<span class="operator">.</span>count()) { <span class="type">QVariantList</span> initRowVariant; <span class="keyword">const</span> <span class="type">QStringList</span> row <span class="operator">=</span> rows<span class="operator">.</span>at(i)<span class="operator">.</span>split(QLatin1Char(<span class="char">','</span>)); <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> Size; j<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">const</span> <span class="type">int</span> val <span class="operator">=</span> j <span class="operator"><</span> row<span class="operator">.</span>count() <span class="operator">?</span> row<span class="operator">.</span>at(j)<span class="operator">.</span>toInt() <span class="operator">%</span> (Size <span class="operator">+</span> <span class="number">1</span>) : <span class="number">0</span>; initRowVariant<span class="operator">.</span>append(val); } initRowsVariant<span class="operator">.</span>append(<span class="type">QVariant</span>(initRowVariant)); } <span class="keyword">else</span> { initRowsVariant<span class="operator">.</span>append(<span class="type">QVariant</span>(emptyRow())); } } <span class="type">QVariantMap</span> dataVariant; dataVariant<span class="operator">.</span>insert(<span class="type">QStringLiteral</span>(<span class="string">"initState"</span>)<span class="operator">,</span> initRowsVariant); <span class="keyword">return</span> dataVariant; } MainWindow<span class="operator">::</span>MainWindow(<span class="type"><a href="qscxmlstatemachine.html">QScxmlStateMachine</a></span> <span class="operator">*</span>machine<span class="operator">,</span> <span class="type">QWidget</span> <span class="operator">*</span>parent) : <span class="type">QWidget</span>(parent)<span class="operator">,</span> m_machine(machine) { <span class="keyword">const</span> <span class="type">QVector</span><span class="operator"><</span><span class="type">QToolButton</span> <span class="operator">*</span><span class="operator">></span> initVector(Size<span class="operator">,</span> nullptr); m_buttons <span class="operator">=</span> <span class="type">QVector</span><span class="operator"><</span><span class="type">QVector</span><span class="operator"><</span><span class="type">QToolButton</span> <span class="operator">*</span><span class="operator">></span> <span class="operator">></span>(Size<span class="operator">,</span> initVector); <span class="type">QGridLayout</span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QGridLayout</span>(<span class="keyword">this</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"><</span> Size; i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> Size; j<span class="operator">+</span><span class="operator">+</span>) { <span class="type">QToolButton</span> <span class="operator">*</span>button <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QToolButton</span>(<span class="keyword">this</span>); button<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Expanding); layout<span class="operator">-</span><span class="operator">></span>addWidget(button<span class="operator">,</span> i <span class="operator">+</span> i <span class="operator">/</span> <span class="number">3</span><span class="operator">,</span> j <span class="operator">+</span> j <span class="operator">/</span> <span class="number">3</span>); m_buttons<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span>j<span class="operator">]</span> <span class="operator">=</span> button; connect(button<span class="operator">,</span> <span class="operator">&</span><span class="type">QToolButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">,</span> i<span class="operator">,</span> j<span class="operator">]</span> () { <span class="type">QVariantMap</span> data; data<span class="operator">.</span>insert(<span class="type">QStringLiteral</span>(<span class="string">"x"</span>)<span class="operator">,</span> i); data<span class="operator">.</span>insert(<span class="type">QStringLiteral</span>(<span class="string">"y"</span>)<span class="operator">,</span> j); m_machine<span class="operator">-</span><span class="operator">></span>submitEvent(<span class="string">"tap"</span><span class="operator">,</span> data); }); } } <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">3</span>; i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> <span class="number">2</span>; j<span class="operator">+</span><span class="operator">+</span>) { <span class="type">QFrame</span> <span class="operator">*</span>hFrame <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFrame</span>(<span class="keyword">this</span>); hFrame<span class="operator">-</span><span class="operator">></span>setFrameShape(<span class="type">QFrame</span><span class="operator">::</span>HLine); layout<span class="operator">-</span><span class="operator">></span>addWidget(hFrame<span class="operator">,</span> <span class="number">4</span> <span class="operator">*</span> j <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span> <span class="number">4</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>); <span class="type">QFrame</span> <span class="operator">*</span>vFrame <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QFrame</span>(<span class="keyword">this</span>); vFrame<span class="operator">-</span><span class="operator">></span>setFrameShape(<span class="type">QFrame</span><span class="operator">::</span>VLine); layout<span class="operator">-</span><span class="operator">></span>addWidget(vFrame<span class="operator">,</span> <span class="number">4</span> <span class="operator">*</span> i<span class="operator">,</span> <span class="number">4</span> <span class="operator">*</span> j <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">1</span>); } } m_startButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QToolButton</span>(<span class="keyword">this</span>); m_startButton<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Expanding); m_startButton<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Start"</span>)); layout<span class="operator">-</span><span class="operator">></span>addWidget(m_startButton<span class="operator">,</span> Size <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>); connect(m_startButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> { <span class="keyword">if</span> (m_machine<span class="operator">-</span><span class="operator">></span>isActive(<span class="string">"playing"</span>)) m_machine<span class="operator">-</span><span class="operator">></span>submitEvent(<span class="string">"stop"</span>); <span class="keyword">else</span> m_machine<span class="operator">-</span><span class="operator">></span>submitEvent(<span class="string">"start"</span>); }); m_label <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QLabel</span>(tr(<span class="string">"unsolved"</span>)); m_label<span class="operator">-</span><span class="operator">></span>setAlignment(<span class="type">Qt</span><span class="operator">::</span>AlignCenter); layout<span class="operator">-</span><span class="operator">></span>addWidget(m_label<span class="operator">,</span> Size <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span> <span class="number">4</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>); m_undoButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QToolButton</span>(<span class="keyword">this</span>); m_undoButton<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type">QSizePolicy</span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type">QSizePolicy</span><span class="operator">::</span>Expanding); m_undoButton<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Undo"</span>)); m_undoButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(m_undoButton<span class="operator">,</span> Size <span class="operator">+</span> <span class="number">3</span><span class="operator">,</span> <span class="number">8</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">3</span>); connect(m_undoButton<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractButton</span><span class="operator">::</span>clicked<span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> { m_machine<span class="operator">-</span><span class="operator">></span>submitEvent(<span class="string">"undo"</span>); }); m_chooser <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QComboBox</span>(<span class="keyword">this</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(m_chooser<span class="operator">,</span> Size <span class="operator">+</span> <span class="number">4</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">11</span>); <span class="type">QDir</span> dataDir(QLatin1String(<span class="string">":/data"</span>)); <span class="type">QFileInfoList</span> sudokuFiles <span class="operator">=</span> dataDir<span class="operator">.</span>entryInfoList(<span class="type">QStringList</span>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"*.data"</span>); foreach (<span class="keyword">const</span> <span class="type">QFileInfo</span> <span class="operator">&</span>sudokuFile<span class="operator">,</span> sudokuFiles) m_chooser<span class="operator">-</span><span class="operator">></span>addItem(sudokuFile<span class="operator">.</span>completeBaseName()<span class="operator">,</span> sudokuFile<span class="operator">.</span>absoluteFilePath()); connect(m_chooser<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type">QComboBox</span><span class="operator">::</span>currentIndexChanged)<span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> (<span class="type">int</span> index) { <span class="keyword">const</span> <span class="type">QString</span> sudokuFile <span class="operator">=</span> m_chooser<span class="operator">-</span><span class="operator">></span>itemData(index)<span class="operator">.</span>toString(); <span class="keyword">const</span> <span class="type">QVariantMap</span> initValues <span class="operator">=</span> readSudoku(sudokuFile); m_machine<span class="operator">-</span><span class="operator">></span>submitEvent(<span class="string">"setup"</span><span class="operator">,</span> initValues); }); <span class="keyword">const</span> <span class="type">QVariantMap</span> initValues <span class="operator">=</span> readSudoku(m_chooser<span class="operator">-</span><span class="operator">></span>itemData(<span class="number">0</span>)<span class="operator">.</span>toString()); m_machine<span class="operator">-</span><span class="operator">></span>setInitialValues(initValues); m_machine<span class="operator">-</span><span class="operator">></span>connectToState(<span class="string">"playing"</span><span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> (bool playing) { <span class="keyword">if</span> (playing) { m_startButton<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Stop"</span>)); m_undoButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); m_chooser<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); } <span class="keyword">else</span> { m_startButton<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Start"</span>)); m_undoButton<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); m_chooser<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); } }); m_machine<span class="operator">-</span><span class="operator">></span>connectToState(<span class="string">"solved"</span><span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> (bool solved) { <span class="keyword">if</span> (solved) m_label<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"SOLVED !!!"</span>)); <span class="keyword">else</span> m_label<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"unsolved"</span>)); }); m_machine<span class="operator">-</span><span class="operator">></span>connectToEvent(<span class="string">"updateGUI"</span><span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span> (<span class="keyword">const</span> <span class="type"><a href="qscxmlevent.html">QScxmlEvent</a></span> <span class="operator">&</span>event) { <span class="keyword">const</span> <span class="type">QVariant</span> data <span class="operator">=</span> event<span class="operator">.</span>data(); <span class="keyword">const</span> <span class="type">QVariantList</span> currentRows <span class="operator">=</span> data<span class="operator">.</span>toMap()<span class="operator">.</span>value(<span class="string">"currentState"</span>)<span class="operator">.</span>toList(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> currentRows<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">const</span> <span class="type">QVariantList</span> row <span class="operator">=</span> currentRows<span class="operator">.</span>at(i)<span class="operator">.</span>toList(); <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> row<span class="operator">.</span>count(); j<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">const</span> <span class="type">int</span> value <span class="operator">=</span> row<span class="operator">.</span>at(j)<span class="operator">.</span>toInt(); <span class="keyword">const</span> <span class="type">QString</span> text <span class="operator">=</span> value <span class="operator">?</span> <span class="type">QString</span><span class="operator">::</span>number(value) : <span class="type">QString</span>(); m_buttons<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span>j<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setText(text); } } <span class="keyword">const</span> bool active <span class="operator">=</span> m_machine<span class="operator">-</span><span class="operator">></span>isActive(<span class="string">"playing"</span>); <span class="keyword">const</span> <span class="type">QVariantList</span> initRows <span class="operator">=</span> data<span class="operator">.</span>toMap()<span class="operator">.</span>value(<span class="string">"initState"</span>)<span class="operator">.</span>toList(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> initRows<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">const</span> <span class="type">QVariantList</span> row <span class="operator">=</span> initRows<span class="operator">.</span>at(i)<span class="operator">.</span>toList(); <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> row<span class="operator">.</span>count(); j<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">const</span> <span class="type">int</span> value <span class="operator">=</span> row<span class="operator">.</span>at(j)<span class="operator">.</span>toInt(); <span class="keyword">const</span> bool enabled <span class="operator">=</span> <span class="operator">!</span>value <span class="operator">&</span><span class="operator">&</span> active; <span class="comment">// enable only zeroes from initState</span> m_buttons<span class="operator">[</span>i<span class="operator">]</span><span class="operator">[</span>j<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setEnabled(enabled); } } }); setLayout(layout); } MainWindow<span class="operator">::</span><span class="operator">~</span>MainWindow() { } </pre> </div> <!-- @@@sudoku/mainwindow.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>