<?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>boat_p.h 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-animation-sub-attaq-example.html">Sub-Attaq</a></td><td >boat_p.h 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">boat_p.h Example File</h1> <span class="subtitle">animation/sub-attaq/boat_p.h</span> <!-- $$$animation/sub-attaq/boat_p.h-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 examples 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">#ifndef BOAT_P_H</span> <span class="preprocessor">#define BOAT_P_H</span> <span class="comment">//</span> <span class="comment">// W A R N I N G</span> <span class="comment">// -------------</span> <span class="comment">//</span> <span class="comment">// This file is not part of the Qt API. It exists purely as an</span> <span class="comment">// implementation detail. This header file may change from version to</span> <span class="comment">// version without notice, or even be removed.</span> <span class="comment">//</span> <span class="comment">// We mean it.</span> <span class="comment">//</span> <span class="comment">//Own</span> <span class="preprocessor">#include "bomb.h"</span> <span class="preprocessor">#include "graphicsscene.h"</span> <span class="comment">// Qt</span> <span class="preprocessor">#include <QtWidgets/QKeyEventTransition></span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="type">int</span> MAX_BOMB <span class="operator">=</span> <span class="number">5</span>; <span class="comment">//These transtion test if we have to stop the boat (i.e current speed is 1)</span> <span class="keyword">class</span> KeyStopTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyStopTransition(Boat <span class="operator">*</span>b<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>Type t<span class="operator">,</span> <span class="type">int</span> k) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(b<span class="operator">,</span> t<span class="operator">,</span> k)<span class="operator">,</span> boat(b) { } <span class="keyword">protected</span>: bool eventTest(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>event) override { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//These transtion test if we have to move the boat (i.e current speed was 0 or another value)</span> <span class="keyword">class</span> KeyMoveTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyMoveTransition(Boat <span class="operator">*</span>b<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>Type t<span class="operator">,</span> <span class="type">int</span> k) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(b<span class="operator">,</span> t<span class="operator">,</span> k)<span class="operator">,</span> boat(b)<span class="operator">,</span> key(k) { } <span class="keyword">protected</span>: bool eventTest(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>event) override { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>); } <span class="type">void</span> onTransition(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { <span class="comment">//We decrease the speed if needed</span> <span class="keyword">if</span> (key <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Left <span class="operator">&</span><span class="operator">&</span> boat<span class="operator">-</span><span class="operator">></span>currentDirection() <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>Right) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">-</span> <span class="number">1</span>); <span class="keyword">else</span> <span class="keyword">if</span> (key <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Right <span class="operator">&</span><span class="operator">&</span> boat<span class="operator">-</span><span class="operator">></span>currentDirection() <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>Left) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">-</span> <span class="number">1</span>); <span class="keyword">else</span> <span class="keyword">if</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator"><</span> <span class="number">3</span>) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">+</span> <span class="number">1</span>); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; <span class="type">int</span> key; }; <span class="comment">//This transition trigger the bombs launch</span> <span class="keyword">class</span> KeyLaunchTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyLaunchTransition(Boat <span class="operator">*</span>boat<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>Type type<span class="operator">,</span> <span class="type">int</span> key) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(boat<span class="operator">,</span> type<span class="operator">,</span> key)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: bool eventTest(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>event) override { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="comment">//We have enough bomb?</span> <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator"><</span> MAX_BOMB); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing when the boat is moving right</span> <span class="keyword">class</span> MoveStateRight : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> { <span class="keyword">public</span>: <span class="keyword">explicit</span> MoveStateRight(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>Right); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing when the boat is moving left</span> <span class="keyword">class</span> MoveStateLeft : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> { <span class="keyword">public</span>: <span class="keyword">explicit</span> MoveStateLeft(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>Left); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing when the boat is in a stand by position</span> <span class="keyword">class</span> StopState : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> { <span class="keyword">public</span>: <span class="keyword">explicit</span> StopState(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(<span class="number">0</span>); boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>None); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing the launch of the torpedo on the right</span> <span class="keyword">class</span> LaunchStateRight : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> { <span class="keyword">public</span>: <span class="keyword">explicit</span> LaunchStateRight(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { Bomb <span class="operator">*</span>b <span class="operator">=</span> <span class="keyword">new</span> Bomb(); b<span class="operator">-</span><span class="operator">></span>setPos(boat<span class="operator">-</span><span class="operator">></span>x()<span class="operator">+</span>boat<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>width()<span class="operator">,</span>boat<span class="operator">-</span><span class="operator">></span>y()); GraphicsScene <span class="operator">*</span>scene <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>GraphicsScene <span class="operator">*</span><span class="operator">></span>(boat<span class="operator">-</span><span class="operator">></span>scene()); scene<span class="operator">-</span><span class="operator">></span>addItem(b); b<span class="operator">-</span><span class="operator">></span>launch(Bomb<span class="operator">::</span>Right); boat<span class="operator">-</span><span class="operator">></span>setBombsLaunched(boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator">+</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing the launch of the torpedo on the left</span> <span class="keyword">class</span> LaunchStateLeft : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> { <span class="keyword">public</span>: <span class="keyword">explicit</span> LaunchStateLeft(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) override { Bomb <span class="operator">*</span>b <span class="operator">=</span> <span class="keyword">new</span> Bomb(); b<span class="operator">-</span><span class="operator">></span>setPos(boat<span class="operator">-</span><span class="operator">></span>x() <span class="operator">-</span> b<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>width()<span class="operator">,</span> boat<span class="operator">-</span><span class="operator">></span>y()); GraphicsScene <span class="operator">*</span>scene <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>GraphicsScene <span class="operator">*</span><span class="operator">></span>(boat<span class="operator">-</span><span class="operator">></span>scene()); scene<span class="operator">-</span><span class="operator">></span>addItem(b); b<span class="operator">-</span><span class="operator">></span>launch(Bomb<span class="operator">::</span>Left); boat<span class="operator">-</span><span class="operator">></span>setBombsLaunched(boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator">+</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="preprocessor">#endif // BOAT_P_H</span> </pre> </div> <!-- @@@animation/sub-attaq/boat_p.h --> </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>