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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">lifecycle.cpp Example File</h1> <span class="small-subtitle">animation/stickman/lifecycle.cpp</span> <!-- $$$animation/stickman/lifecycle.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 "lifecycle.h"</span> <span class="preprocessor">#include "stickman.h"</span> <span class="preprocessor">#include "node.h"</span> <span class="preprocessor">#include "animation.h"</span> <span class="preprocessor">#include "graphicsview.h"</span> <span class="preprocessor">#include <QtCore></span> <span class="preprocessor">#include <QtGui></span> <span class="keyword">class</span> KeyPressTransition: <span class="keyword">public</span> <span class="type"><a href="qsignaltransition.html">QSignalTransition</a></span> { <span class="keyword">public</span>: KeyPressTransition(GraphicsView <span class="operator">*</span>receiver<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key key) : <span class="type"><a href="qsignaltransition.html">QSignalTransition</a></span>(receiver<span class="operator">,</span> SIGNAL(keyPressed(<span class="type">int</span>)))<span class="operator">,</span> m_key(key) { } KeyPressTransition(GraphicsView <span class="operator">*</span>receiver<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key key<span class="operator">,</span> <span class="type"><a href="qabstractstate.html">QAbstractState</a></span> <span class="operator">*</span>target) : <span class="type"><a href="qsignaltransition.html">QSignalTransition</a></span>(receiver<span class="operator">,</span> SIGNAL(keyPressed(<span class="type">int</span>)))<span class="operator">,</span> m_key(key) { setTargetState(target); } <span class="keyword">virtual</span> <span class="type">bool</span> eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>e) { <span class="keyword">if</span> (<span class="type"><a href="qsignaltransition.html">QSignalTransition</a></span><span class="operator">::</span>eventTest(e)) { <span class="type"><a href="qvariant.html">QVariant</a></span> key <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent<span class="operator">*</span><span class="operator">></span>(e)<span class="operator">-</span><span class="operator">></span>arguments()<span class="operator">.</span>at(<span class="number">0</span>); <span class="keyword">return</span> (key<span class="operator">.</span>toInt() <span class="operator">=</span><span class="operator">=</span> <span class="type">int</span>(m_key)); } <span class="keyword">return</span> <span class="keyword">false</span>; } <span class="keyword">private</span>: <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key m_key; }; <span class="keyword">class</span> LightningStrikesTransition: <span class="keyword">public</span> <span class="type"><a href="qeventtransition.html">QEventTransition</a></span> { <span class="keyword">public</span>: LightningStrikesTransition(<span class="type"><a href="qabstractstate.html">QAbstractState</a></span> <span class="operator">*</span>target) : <span class="type"><a href="qeventtransition.html">QEventTransition</a></span>(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="qevent.html">QEvent</a></span><span class="operator">::</span>Timer) { setTargetState(target); qsrand((<span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span>)<span class="type"><a href="qdatetime.html">QDateTime</a></span><span class="operator">::</span>currentDateTime()<span class="operator">.</span>toTime_t()); startTimer(<span class="number">1000</span>); } <span class="keyword">virtual</span> <span class="type">bool</span> eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>e) { <span class="keyword">return</span> <span class="type"><a href="qeventtransition.html">QEventTransition</a></span><span class="operator">::</span>eventTest(e) <span class="operator">&</span><span class="operator">&</span> ((qrand() <span class="operator">%</span> <span class="number">50</span>) <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>); } }; LifeCycle<span class="operator">::</span>LifeCycle(StickMan <span class="operator">*</span>stickMan<span class="operator">,</span> GraphicsView <span class="operator">*</span>keyReceiver) : m_stickMan(stickMan)<span class="operator">,</span> m_keyReceiver(keyReceiver) { <span class="comment">// Create animation group to be used for all transitions</span> m_animationGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qparallelanimationgroup.html">QParallelAnimationGroup</a></span>(); <span class="keyword">const</span> <span class="type">int</span> stickManNodeCount <span class="operator">=</span> m_stickMan<span class="operator">-</span><span class="operator">></span>nodeCount(); <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>stickManNodeCount; <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span> <span class="operator">*</span>pa <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpropertyanimation.html">QPropertyAnimation</a></span>(m_stickMan<span class="operator">-</span><span class="operator">></span>node(i)<span class="operator">,</span> <span class="string">"pos"</span>); m_animationGroup<span class="operator">-</span><span class="operator">></span>addAnimation(pa); } <span class="comment">// Set up initial state graph</span> m_machine <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstatemachine.html">QStateMachine</a></span>(); m_machine<span class="operator">-</span><span class="operator">></span>addDefaultAnimation(m_animationGroup); m_alive <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(m_machine); m_alive<span class="operator">-</span><span class="operator">></span>setObjectName(<span class="string">"alive"</span>); <span class="comment">// Make it blink when lightning strikes before entering dead animation</span> <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>lightningBlink <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(m_machine); lightningBlink<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">,</span> <span class="string">"backgroundBrush"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white); lightningBlink<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">,</span> <span class="string">"penColor"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black); lightningBlink<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">,</span> <span class="string">"fillColor"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white); lightningBlink<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">,</span> <span class="string">"isDead"</span><span class="operator">,</span> <span class="keyword">true</span>); <span class="type"><a href="qtimer.html">QTimer</a></span> <span class="operator">*</span>timer <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtimer.html">QTimer</a></span>(lightningBlink); timer<span class="operator">-</span><span class="operator">></span>setSingleShot(<span class="keyword">true</span>); timer<span class="operator">-</span><span class="operator">></span>setInterval(<span class="number">100</span>); <span class="type"><a href="qobject.html">QObject</a></span><span class="operator">::</span>connect(lightningBlink<span class="operator">,</span> SIGNAL(entered())<span class="operator">,</span> timer<span class="operator">,</span> SLOT(start())); <span class="type"><a href="qobject.html">QObject</a></span><span class="operator">::</span>connect(lightningBlink<span class="operator">,</span> SIGNAL(exited())<span class="operator">,</span> timer<span class="operator">,</span> SLOT(stop())); m_dead <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(m_machine); m_dead<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">,</span> <span class="string">"backgroundBrush"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black); m_dead<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">,</span> <span class="string">"penColor"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white); m_dead<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">,</span> <span class="string">"fillColor"</span><span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>black); m_dead<span class="operator">-</span><span class="operator">></span>setObjectName(<span class="string">"dead"</span>); <span class="comment">// Idle state (sets no properties)</span> m_idle <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(m_alive); m_idle<span class="operator">-</span><span class="operator">></span>setObjectName(<span class="string">"idle"</span>); m_alive<span class="operator">-</span><span class="operator">></span>setInitialState(m_idle); <span class="comment">// Lightning strikes at random</span> m_alive<span class="operator">-</span><span class="operator">></span>addTransition(<span class="keyword">new</span> LightningStrikesTransition(lightningBlink)); lightningBlink<span class="operator">-</span><span class="operator">></span>addTransition(timer<span class="operator">,</span> SIGNAL(timeout())<span class="operator">,</span> m_dead); m_machine<span class="operator">-</span><span class="operator">></span>setInitialState(m_alive); } <span class="type">void</span> LifeCycle<span class="operator">::</span>setDeathAnimation(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>fileName) { <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>deathAnimation <span class="operator">=</span> makeState(m_dead<span class="operator">,</span> fileName); m_dead<span class="operator">-</span><span class="operator">></span>setInitialState(deathAnimation); } <span class="type">void</span> LifeCycle<span class="operator">::</span>start() { m_machine<span class="operator">-</span><span class="operator">></span>start(); } <span class="type">void</span> LifeCycle<span class="operator">::</span>addActivity(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>fileName<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key key<span class="operator">,</span> <span class="type"><a href="qobject.html">QObject</a></span> <span class="operator">*</span>sender<span class="operator">,</span> <span class="keyword">const</span> <span class="type">char</span> <span class="operator">*</span>signal) { <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>state <span class="operator">=</span> makeState(m_alive<span class="operator">,</span> fileName); m_alive<span class="operator">-</span><span class="operator">></span>addTransition(<span class="keyword">new</span> KeyPressTransition(m_keyReceiver<span class="operator">,</span> key<span class="operator">,</span> state)); <span class="keyword">if</span>((sender <span class="operator">!</span><span class="operator">=</span> NULL) <span class="operator">|</span><span class="operator">|</span> (signal <span class="operator">!</span><span class="operator">=</span> NULL)) { m_alive<span class="operator">-</span><span class="operator">></span>addTransition(sender<span class="operator">,</span> signal<span class="operator">,</span> state); } } <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>LifeCycle<span class="operator">::</span>makeState(<span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parentState<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>animationFileName) { <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>topLevel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(parentState); Animation animation; { <span class="type"><a href="qfile.html">QFile</a></span> file(animationFileName); <span class="keyword">if</span> (file<span class="operator">.</span>open(<span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly)) animation<span class="operator">.</span>load(<span class="operator">&</span>file); } <span class="keyword">const</span> <span class="type">int</span> frameCount <span class="operator">=</span> animation<span class="operator">.</span>totalFrames(); <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>previousState <span class="operator">=</span> <span class="number">0</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>frameCount; <span class="operator">+</span><span class="operator">+</span>i) { animation<span class="operator">.</span>setCurrentFrame(i); <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>frameState <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>(topLevel); <span class="keyword">const</span> <span class="type">int</span> nodeCount <span class="operator">=</span> animation<span class="operator">.</span>nodeCount(); <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>nodeCount; <span class="operator">+</span><span class="operator">+</span>j) frameState<span class="operator">-</span><span class="operator">></span>assignProperty(m_stickMan<span class="operator">-</span><span class="operator">></span>node(j)<span class="operator">,</span> <span class="string">"pos"</span><span class="operator">,</span> animation<span class="operator">.</span>nodePos(j)); frameState<span class="operator">-</span><span class="operator">></span>setObjectName(<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>fromLatin1(<span class="string">"frame %0"</span>)<span class="operator">.</span>arg(i)); <span class="keyword">if</span> (previousState <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) topLevel<span class="operator">-</span><span class="operator">></span>setInitialState(frameState); <span class="keyword">else</span> previousState<span class="operator">-</span><span class="operator">></span>addTransition(previousState<span class="operator">,</span> SIGNAL(propertiesAssigned())<span class="operator">,</span> frameState); previousState <span class="operator">=</span> frameState; } <span class="comment">// Loop</span> previousState<span class="operator">-</span><span class="operator">></span>addTransition(previousState<span class="operator">,</span> SIGNAL(propertiesAssigned())<span class="operator">,</span> topLevel<span class="operator">-</span><span class="operator">></span>initialState()); <span class="keyword">return</span> topLevel; } LifeCycle<span class="operator">::</span><span class="operator">~</span>LifeCycle() { <span class="keyword">delete</span> m_machine; <span class="keyword">delete</span> m_animationGroup; }</pre> </div> <!-- @@@animation/stickman/lifecycle.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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