<?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>window.cpp Example File | Qt Widgets 5.12.6</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 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-statemachine-rogue-example.html">Rogue Example</a></td><td >window.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></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">window.cpp Example File</h1> <span class="subtitle">statemachine/rogue/window.cpp</span> <!-- $$$statemachine/rogue/window.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 documentation 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 <QtWidgets></span> <span class="preprocessor">#include "window.h"</span> <span class="preprocessor">#include "movementtransition.h"</span> Window<span class="operator">::</span>Window() { pX <span class="operator">=</span> <span class="number">5</span>; pY <span class="operator">=</span> <span class="number">5</span>; <span class="type"><a href="../qtgui/qfontdatabase.html">QFontDatabase</a></span> database; <span class="type"><a href="../qtgui/qfont.html">QFont</a></span> font; <span class="keyword">if</span> (database<span class="operator">.</span>families()<span class="operator">.</span>contains(<span class="string">"Monospace"</span>)) { font <span class="operator">=</span> <span class="type"><a href="../qtgui/qfont.html">QFont</a></span>(<span class="string">"Monospace"</span>); } <span class="keyword">else</span> { foreach (<span class="type"><a href="../qtcore/qstring.html">QString</a></span> family<span class="operator">,</span> database<span class="operator">.</span>families()) { <span class="keyword">if</span> (database<span class="operator">.</span>isFixedPitch(family)) { font <span class="operator">=</span> <span class="type"><a href="../qtgui/qfont.html">QFont</a></span>(family); <span class="keyword">break</span>; } } } font<span class="operator">.</span>setPointSize(<span class="number">12</span>); setFont(font); setupMap(); buildMachine(); } <span class="type">void</span> Window<span class="operator">::</span>setStatus(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>status) { myStatus <span class="operator">=</span> status; repaint(); } <span class="type"><a href="../qtcore/qstring.html">QString</a></span> Window<span class="operator">::</span>status() <span class="keyword">const</span> { <span class="keyword">return</span> myStatus; } <span class="type">void</span> Window<span class="operator">::</span>paintEvent(<span class="type"><a href="../qtgui/qpaintevent.html">QPaintEvent</a></span> <span class="operator">*</span> <span class="comment">/* event */</span>) { <span class="type"><a href="../qtgui/qfontmetrics.html">QFontMetrics</a></span> metrics(font()); <span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> painter(<span class="keyword">this</span>); <span class="type">int</span> fontHeight <span class="operator">=</span> metrics<span class="operator">.</span>height(); <span class="type">int</span> fontWidth <span class="operator">=</span> metrics<span class="operator">.</span>horizontalAdvance(<span class="char">'X'</span>); <span class="type">int</span> yPos <span class="operator">=</span> fontHeight; <span class="type">int</span> xPos; painter<span class="operator">.</span>fillRect(rect()<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>black); painter<span class="operator">.</span>setPen(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white); painter<span class="operator">.</span>drawText(<span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span>(<span class="number">0</span><span class="operator">,</span> yPos)<span class="operator">,</span> status()); <span class="keyword">for</span> (<span class="type">int</span> y <span class="operator">=</span> <span class="number">0</span>; y <span class="operator"><</span> HEIGHT; <span class="operator">+</span><span class="operator">+</span>y) { yPos <span class="operator">+</span><span class="operator">=</span> fontHeight; xPos <span class="operator">=</span> <span class="number">0</span>; <span class="keyword">for</span> (<span class="type">int</span> x <span class="operator">=</span> <span class="number">0</span>; x <span class="operator"><</span> WIDTH; <span class="operator">+</span><span class="operator">+</span>x) { <span class="keyword">if</span> (y <span class="operator">=</span><span class="operator">=</span> pY <span class="operator">&</span><span class="operator">&</span> x <span class="operator">=</span><span class="operator">=</span> pX) { xPos <span class="operator">+</span><span class="operator">=</span> fontWidth; <span class="keyword">continue</span>; } painter<span class="operator">.</span>setPen(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white); <span class="type">double</span> x1 <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">double</span><span class="operator">></span>(pX); <span class="type">double</span> y1 <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">double</span><span class="operator">></span>(pY); <span class="type">double</span> x2 <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">double</span><span class="operator">></span>(x); <span class="type">double</span> y2 <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">double</span><span class="operator">></span>(y); <span class="keyword">if</span> (x2<span class="operator"><</span>x1) { x2<span class="operator">+</span><span class="operator">=</span><span class="number">0.5</span>; } <span class="keyword">else</span> <span class="keyword">if</span> (x2<span class="operator">></span>x1) { x2<span class="operator">-</span><span class="operator">=</span><span class="number">0.5</span>; } <span class="keyword">if</span> (y2<span class="operator"><</span>y1) { y2<span class="operator">+</span><span class="operator">=</span><span class="number">0.5</span>; } <span class="keyword">else</span> <span class="keyword">if</span> (y2<span class="operator">></span>y1) { y2<span class="operator">-</span><span class="operator">=</span><span class="number">0.5</span>; } <span class="type">double</span> dx <span class="operator">=</span> x2 <span class="operator">-</span> x1; <span class="type">double</span> dy <span class="operator">=</span> y2 <span class="operator">-</span> y1; <span class="type">double</span> length <span class="operator">=</span> <a href="../qtcore/qtmath.html#qSqrt">qSqrt</a>(dx<span class="operator">*</span>dx<span class="operator">+</span>dy<span class="operator">*</span>dy); dx <span class="operator">/</span><span class="operator">=</span> length; dy <span class="operator">/</span><span class="operator">=</span> length; <span class="type">double</span> xi <span class="operator">=</span> x1; <span class="type">double</span> yi <span class="operator">=</span> y1; <span class="keyword">while</span> (length <span class="operator">></span> <span class="number">0</span>) { <span class="type">int</span> cx <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span>(xi<span class="operator">+</span><span class="number">0.5</span>); <span class="type">int</span> cy <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span>(yi<span class="operator">+</span><span class="number">0.5</span>); <span class="keyword">if</span> (x2 <span class="operator">=</span><span class="operator">=</span> cx <span class="operator">&</span><span class="operator">&</span> y2 <span class="operator">=</span><span class="operator">=</span> cy) <span class="keyword">break</span>; <span class="keyword">if</span> (<span class="operator">!</span>(x1<span class="operator">=</span><span class="operator">=</span>cx <span class="operator">&</span><span class="operator">&</span> y1<span class="operator">=</span><span class="operator">=</span>cy) <span class="operator">&</span><span class="operator">&</span> (map<span class="operator">[</span>cx<span class="operator">]</span><span class="operator">[</span>cy<span class="operator">]</span> <span class="operator">=</span><span class="operator">=</span> <span class="char">'#'</span> <span class="operator">|</span><span class="operator">|</span> (length<span class="operator">-</span><span class="number">10</span>) <span class="operator">></span> <span class="number">0</span>)) { painter<span class="operator">.</span>setPen(<span class="type"><a href="../qtgui/qcolor.html">QColor</a></span>(<span class="number">60</span><span class="operator">,</span><span class="number">60</span><span class="operator">,</span><span class="number">60</span>)); <span class="keyword">break</span>; } xi <span class="operator">+</span><span class="operator">=</span> dx; yi <span class="operator">+</span><span class="operator">=</span> dy; <span class="operator">-</span><span class="operator">-</span>length; } painter<span class="operator">.</span>drawText(<span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span>(xPos<span class="operator">,</span> yPos)<span class="operator">,</span> map<span class="operator">[</span>x<span class="operator">]</span><span class="operator">[</span>y<span class="operator">]</span>); xPos <span class="operator">+</span><span class="operator">=</span> fontWidth; } } painter<span class="operator">.</span>setPen(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>white); painter<span class="operator">.</span>drawText(<span class="type"><a href="../qtcore/qpoint.html">QPoint</a></span>(pX <span class="operator">*</span> fontWidth<span class="operator">,</span> (pY <span class="operator">+</span> <span class="number">2</span>) <span class="operator">*</span> fontHeight)<span class="operator">,</span> <span class="type"><a href="../qtcore/qchar.html">QChar</a></span>(<span class="char">'@'</span>)); } <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> Window<span class="operator">::</span>sizeHint() <span class="keyword">const</span> { <span class="type"><a href="../qtgui/qfontmetrics.html">QFontMetrics</a></span> metrics(font()); <span class="keyword">return</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(metrics<span class="operator">.</span>horizontalAdvance(<span class="char">'X'</span>) <span class="operator">*</span> WIDTH<span class="operator">,</span> metrics<span class="operator">.</span>height() <span class="operator">*</span> (HEIGHT <span class="operator">+</span> <span class="number">1</span>)); } <span class="type">void</span> Window<span class="operator">::</span>buildMachine() { machine <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span>; <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>inputState <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(machine); inputState<span class="operator">-</span><span class="operator">></span>assignProperty(<span class="keyword">this</span><span class="operator">,</span> <span class="string">"status"</span><span class="operator">,</span> <span class="string">"Move the rogue with 2, 4, 6, and 8"</span>); MovementTransition <span class="operator">*</span>transition <span class="operator">=</span> <span class="keyword">new</span> MovementTransition(<span class="keyword">this</span>); inputState<span class="operator">-</span><span class="operator">></span>addTransition(transition); <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>quitState <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(machine); quitState<span class="operator">-</span><span class="operator">></span>assignProperty(<span class="keyword">this</span><span class="operator">,</span> <span class="string">"status"</span><span class="operator">,</span> <span class="string">"Really quit(y/n)?"</span>); <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> <span class="operator">*</span>yesTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Y); yesTransition<span class="operator">-</span><span class="operator">></span>setTargetState(<span class="keyword">new</span> <span class="type"><a href="../qtcore/qfinalstate.html">QFinalState</a></span>(machine)); quitState<span class="operator">-</span><span class="operator">></span>addTransition(yesTransition); <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> <span class="operator">*</span>noTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_N); noTransition<span class="operator">-</span><span class="operator">></span>setTargetState(inputState); quitState<span class="operator">-</span><span class="operator">></span>addTransition(noTransition); <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> <span class="operator">*</span>quitTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Q); quitTransition<span class="operator">-</span><span class="operator">></span>setTargetState(quitState); inputState<span class="operator">-</span><span class="operator">></span>addTransition(quitTransition); machine<span class="operator">-</span><span class="operator">></span>setInitialState(inputState); connect(machine<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> <a href="qapplication.html#qApp">qApp</a><span class="operator">,</span> SLOT(quit())); machine<span class="operator">-</span><span class="operator">></span>start(); } <span class="type">void</span> Window<span class="operator">::</span>movePlayer(Direction direction) { <span class="keyword">switch</span> (direction) { <span class="keyword">case</span> Left: <span class="keyword">if</span> (map<span class="operator">[</span>pX <span class="operator">-</span> <span class="number">1</span><span class="operator">]</span><span class="operator">[</span>pY<span class="operator">]</span> <span class="operator">!</span><span class="operator">=</span> <span class="char">'#'</span>) <span class="operator">-</span><span class="operator">-</span>pX; <span class="keyword">break</span>; <span class="keyword">case</span> Right: <span class="keyword">if</span> (map<span class="operator">[</span>pX <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span><span class="operator">[</span>pY<span class="operator">]</span> <span class="operator">!</span><span class="operator">=</span> <span class="char">'#'</span>) <span class="operator">+</span><span class="operator">+</span>pX; <span class="keyword">break</span>; <span class="keyword">case</span> Up: <span class="keyword">if</span> (map<span class="operator">[</span>pX<span class="operator">]</span><span class="operator">[</span>pY <span class="operator">-</span> <span class="number">1</span><span class="operator">]</span> <span class="operator">!</span><span class="operator">=</span> <span class="char">'#'</span>) <span class="operator">-</span><span class="operator">-</span>pY; <span class="keyword">break</span>; <span class="keyword">case</span> Down: <span class="keyword">if</span> (map<span class="operator">[</span>pX<span class="operator">]</span><span class="operator">[</span>pY <span class="operator">+</span> <span class="number">1</span><span class="operator">]</span> <span class="operator">!</span><span class="operator">=</span> <span class="char">'#'</span>) <span class="operator">+</span><span class="operator">+</span>pY; <span class="keyword">break</span>; } repaint(); } <span class="type">void</span> Window<span class="operator">::</span>setupMap() { <span class="keyword">for</span> (<span class="type">int</span> x <span class="operator">=</span> <span class="number">0</span>; x <span class="operator"><</span> WIDTH; <span class="operator">+</span><span class="operator">+</span>x) <span class="keyword">for</span> (<span class="type">int</span> y <span class="operator">=</span> <span class="number">0</span>; y <span class="operator"><</span> HEIGHT; <span class="operator">+</span><span class="operator">+</span>y) { <span class="keyword">if</span> (x <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> x <span class="operator">=</span><span class="operator">=</span> WIDTH <span class="operator">-</span> <span class="number">1</span> <span class="operator">|</span><span class="operator">|</span> y <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> y <span class="operator">=</span><span class="operator">=</span> HEIGHT <span class="operator">-</span> <span class="number">1</span> <span class="operator">|</span><span class="operator">|</span> <span class="type"><a href="../qtcore/qrandomgenerator.html">QRandomGenerator</a></span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">40</span>) <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) map<span class="operator">[</span>x<span class="operator">]</span><span class="operator">[</span>y<span class="operator">]</span> <span class="operator">=</span> <span class="char">'#'</span>; <span class="keyword">else</span> map<span class="operator">[</span>x<span class="operator">]</span><span class="operator">[</span>y<span class="operator">]</span> <span class="operator">=</span> <span class="char">'.'</span>; } } </pre> </div> <!-- @@@statemachine/rogue/window.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 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>