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Diffstat (limited to 'examples/widgets/animation/stickman/lifecycle.cpp')
-rw-r--r-- | examples/widgets/animation/stickman/lifecycle.cpp | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/examples/widgets/animation/stickman/lifecycle.cpp b/examples/widgets/animation/stickman/lifecycle.cpp deleted file mode 100644 index 5ad284c590..0000000000 --- a/examples/widgets/animation/stickman/lifecycle.cpp +++ /dev/null @@ -1,234 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "lifecycle.h" -#include "stickman.h" -#include "node.h" -#include "animation.h" -#include "graphicsview.h" - -#include <QEventTransition> -#include <QFile> -#include <QParallelAnimationGroup> -#include <QPropertyAnimation> -#include <QRandomGenerator> -#include <QSignalTransition> -#include <QState> -#include <QStateMachine> -#include <QTimer> - -class KeyPressTransition: public QSignalTransition -{ -public: - KeyPressTransition(GraphicsView *receiver, Qt::Key key) - : QSignalTransition(receiver, &GraphicsView::keyPressed), m_key(key) - { - } - KeyPressTransition(GraphicsView *receiver, Qt::Key key, QAbstractState *target) - : QSignalTransition(receiver, &GraphicsView::keyPressed), m_key(key) - { - setTargetState(target); - } - - bool eventTest(QEvent *e) override - { - if (QSignalTransition::eventTest(e)) { - QVariant key = static_cast<QStateMachine::SignalEvent*>(e)->arguments().at(0); - return (key.toInt() == int(m_key)); - } - - return false; - } -private: - Qt::Key m_key; -}; - -//! [4] -class LightningStrikesTransition: public QEventTransition -{ -public: - LightningStrikesTransition(QAbstractState *target) - : QEventTransition(this, QEvent::Timer) - { - setTargetState(target); - startTimer(1000); - } - - bool eventTest(QEvent *e) override - { - return QEventTransition::eventTest(e) && QRandomGenerator::global()->bounded(50) == 0; - } -}; -//! [4] - -LifeCycle::LifeCycle(StickMan *stickMan, GraphicsView *keyReceiver) - : m_stickMan(stickMan), m_keyReceiver(keyReceiver) -{ - // Create animation group to be used for all transitions - m_animationGroup = new QParallelAnimationGroup(); - const int stickManNodeCount = m_stickMan->nodeCount(); - for (int i = 0; i < stickManNodeCount; ++i) { - QPropertyAnimation *pa = new QPropertyAnimation(m_stickMan->node(i), "pos"); - m_animationGroup->addAnimation(pa); - } - - // Set up initial state graph -//! [3] - m_machine = new QStateMachine(); - m_machine->addDefaultAnimation(m_animationGroup); -//! [3] - - m_alive = new QState(m_machine); - m_alive->setObjectName("alive"); - - // Make it blink when lightning strikes before entering dead animation - QState *lightningBlink = new QState(m_machine); - lightningBlink->assignProperty(m_stickMan->scene(), "backgroundBrush", QColor(Qt::white)); - lightningBlink->assignProperty(m_stickMan, "penColor", QColor(Qt::black)); - lightningBlink->assignProperty(m_stickMan, "fillColor", QColor(Qt::white)); - lightningBlink->assignProperty(m_stickMan, "isDead", true); - -//! [5] - QTimer *timer = new QTimer(lightningBlink); - timer->setSingleShot(true); - timer->setInterval(100); - QObject::connect(lightningBlink, &QAbstractState::entered, - timer, QOverload<>::of(&QTimer::start)); - QObject::connect(lightningBlink, &QAbstractState::exited, - timer, &QTimer::stop); -//! [5] - - m_dead = new QState(m_machine); - m_dead->assignProperty(m_stickMan->scene(), "backgroundBrush", QColor(Qt::black)); - m_dead->assignProperty(m_stickMan, "penColor", QColor(Qt::white)); - m_dead->assignProperty(m_stickMan, "fillColor", QColor(Qt::black)); - m_dead->setObjectName("dead"); - - // Idle state (sets no properties) - m_idle = new QState(m_alive); - m_idle->setObjectName("idle"); - - m_alive->setInitialState(m_idle); - - // Lightning strikes at random - m_alive->addTransition(new LightningStrikesTransition(lightningBlink)); -//! [0] - lightningBlink->addTransition(timer, &QTimer::timeout, m_dead); -//! [0] - - m_machine->setInitialState(m_alive); -} - -void LifeCycle::setDeathAnimation(const QString &fileName) -{ - QState *deathAnimation = makeState(m_dead, fileName); - m_dead->setInitialState(deathAnimation); -} - -void LifeCycle::start() -{ - m_machine->start(); -} - -void LifeCycle::addActivity(const QString &fileName, Qt::Key key, QObject *sender, const char *signal) -{ - QState *state = makeState(m_alive, fileName); - m_alive->addTransition(new KeyPressTransition(m_keyReceiver, key, state)); - - if (sender && signal) - m_alive->addTransition(sender, signal, state); -} - -QState *LifeCycle::makeState(QState *parentState, const QString &animationFileName) -{ - QState *topLevel = new QState(parentState); - - Animation animation; - { - QFile file(animationFileName); - if (file.open(QIODevice::ReadOnly)) - animation.load(&file); - } - - const int frameCount = animation.totalFrames(); - QState *previousState = nullptr; - for (int i = 0; i < frameCount; ++i) { - animation.setCurrentFrame(i); - -//! [1] - QState *frameState = new QState(topLevel); - const int nodeCount = animation.nodeCount(); - for (int j = 0; j < nodeCount; ++j) - frameState->assignProperty(m_stickMan->node(j), "pos", animation.nodePos(j)); -//! [1] - - frameState->setObjectName(QString::fromLatin1("frame %0").arg(i)); - if (previousState == nullptr) - topLevel->setInitialState(frameState); - else -//! [2] - previousState->addTransition(previousState, &QState::propertiesAssigned, frameState); -//! [2] - - previousState = frameState; - } - - // Loop - previousState->addTransition(previousState, &QState::propertiesAssigned, topLevel->initialState()); - - return topLevel; - -} - -LifeCycle::~LifeCycle() -{ - delete m_machine; - delete m_animationGroup; -} |