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-rw-r--r--examples/widgets/animation/moveblocks/main.cpp330
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diff --git a/examples/widgets/animation/moveblocks/main.cpp b/examples/widgets/animation/moveblocks/main.cpp
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--- a/examples/widgets/animation/moveblocks/main.cpp
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-/****************************************************************************
-**
-** 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 <QtCore>
-#include <QtWidgets>
-
-//![15]
-class StateSwitchEvent: public QEvent
-{
-public:
- StateSwitchEvent()
- : QEvent(Type(StateSwitchType))
- {
- }
-
- explicit StateSwitchEvent(int rand)
- : QEvent(Type(StateSwitchType)),
- m_rand(rand)
- {
- }
-
- enum { StateSwitchType = QEvent::User + 256 };
-
- int rand() const { return m_rand; }
-
-private:
- int m_rand;
-};
-//![15]
-
-//![16]
-class QGraphicsRectWidget : public QGraphicsWidget
-{
-public:
- void paint(QPainter *painter, const QStyleOptionGraphicsItem *,
- QWidget *) override
- {
- painter->fillRect(rect(), Qt::blue);
- }
-};
-//![16]
-
-class StateSwitchTransition: public QAbstractTransition
-{
-public:
- StateSwitchTransition(int rand)
- : QAbstractTransition(),
- m_rand(rand)
- {
- }
-
-protected:
-//![14]
- bool eventTest(QEvent *event) override
- {
- return (event->type() == QEvent::Type(StateSwitchEvent::StateSwitchType))
- && (static_cast<StateSwitchEvent *>(event)->rand() == m_rand);
- }
-//![14]
-
- void onTransition(QEvent *) override {}
-
-private:
- int m_rand;
-};
-
-//![10]
-class StateSwitcher : public QState
-{
- Q_OBJECT
-public:
- StateSwitcher(QStateMachine *machine)
- : QState(machine), m_stateCount(0), m_lastIndex(0)
- { }
-//![10]
-
-//![11]
- void onEntry(QEvent *) override
- {
- int n;
- while ((n = QRandomGenerator::global()->bounded(m_stateCount) + 1) == m_lastIndex)
- { }
- m_lastIndex = n;
- machine()->postEvent(new StateSwitchEvent(n));
- }
- void onExit(QEvent *) override {}
-//![11]
-
-//![12]
- void addState(QState *state, QAbstractAnimation *animation) {
- StateSwitchTransition *trans = new StateSwitchTransition(++m_stateCount);
- trans->setTargetState(state);
- addTransition(trans);
- trans->addAnimation(animation);
- }
-//![12]
-
-private:
- int m_stateCount;
- int m_lastIndex;
-};
-
-//![13]
-QState *createGeometryState(QObject *w1, const QRect &rect1,
- QObject *w2, const QRect &rect2,
- QObject *w3, const QRect &rect3,
- QObject *w4, const QRect &rect4,
- QState *parent)
-{
- QState *result = new QState(parent);
- result->assignProperty(w1, "geometry", rect1);
- result->assignProperty(w2, "geometry", rect2);
- result->assignProperty(w3, "geometry", rect3);
- result->assignProperty(w4, "geometry", rect4);
-
- return result;
-}
-//![13]
-
-
-class GraphicsView : public QGraphicsView
-{
- Q_OBJECT
-public:
- GraphicsView(QGraphicsScene *scene, QWidget *parent = nullptr)
- : QGraphicsView(scene, parent)
- {
- }
-
-protected:
- void resizeEvent(QResizeEvent *event) override
- {
- fitInView(scene()->sceneRect());
- QGraphicsView::resizeEvent(event);
- }
-};
-
-
-int main(int argc, char **argv)
-{
- QApplication app(argc, argv);
-
-//![1]
- QGraphicsRectWidget *button1 = new QGraphicsRectWidget;
- QGraphicsRectWidget *button2 = new QGraphicsRectWidget;
- QGraphicsRectWidget *button3 = new QGraphicsRectWidget;
- QGraphicsRectWidget *button4 = new QGraphicsRectWidget;
- button2->setZValue(1);
- button3->setZValue(2);
- button4->setZValue(3);
- QGraphicsScene scene(0, 0, 300, 300);
- scene.setBackgroundBrush(Qt::black);
- scene.addItem(button1);
- scene.addItem(button2);
- scene.addItem(button3);
- scene.addItem(button4);
-//![1]
- GraphicsView window(&scene);
- window.setFrameStyle(0);
- window.setAlignment(Qt::AlignLeft | Qt::AlignTop);
- window.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
- window.setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-//![2]
- QStateMachine machine;
-
- QState *group = new QState();
- group->setObjectName("group");
- QTimer timer;
- timer.setInterval(1250);
- timer.setSingleShot(true);
- QObject::connect(group, &QState::entered, &timer, QOverload<>::of(&QTimer::start));
-//![2]
-
-//![3]
- QState *state1;
- QState *state2;
- QState *state3;
- QState *state4;
- QState *state5;
- QState *state6;
- QState *state7;
-
- state1 = createGeometryState(button1, QRect(100, 0, 50, 50),
- button2, QRect(150, 0, 50, 50),
- button3, QRect(200, 0, 50, 50),
- button4, QRect(250, 0, 50, 50),
- group);
-//![3]
- state2 = createGeometryState(button1, QRect(250, 100, 50, 50),
- button2, QRect(250, 150, 50, 50),
- button3, QRect(250, 200, 50, 50),
- button4, QRect(250, 250, 50, 50),
- group);
- state3 = createGeometryState(button1, QRect(150, 250, 50, 50),
- button2, QRect(100, 250, 50, 50),
- button3, QRect(50, 250, 50, 50),
- button4, QRect(0, 250, 50, 50),
- group);
- state4 = createGeometryState(button1, QRect(0, 150, 50, 50),
- button2, QRect(0, 100, 50, 50),
- button3, QRect(0, 50, 50, 50),
- button4, QRect(0, 0, 50, 50),
- group);
- state5 = createGeometryState(button1, QRect(100, 100, 50, 50),
- button2, QRect(150, 100, 50, 50),
- button3, QRect(100, 150, 50, 50),
- button4, QRect(150, 150, 50, 50),
- group);
- state6 = createGeometryState(button1, QRect(50, 50, 50, 50),
- button2, QRect(200, 50, 50, 50),
- button3, QRect(50, 200, 50, 50),
- button4, QRect(200, 200, 50, 50),
- group);
-//![4]
- state7 = createGeometryState(button1, QRect(0, 0, 50, 50),
- button2, QRect(250, 0, 50, 50),
- button3, QRect(0, 250, 50, 50),
- button4, QRect(250, 250, 50, 50),
- group);
- group->setInitialState(state1);
-//![4]
-
-//![5]
- QParallelAnimationGroup animationGroup;
- QSequentialAnimationGroup *subGroup;
-
- QPropertyAnimation *anim = new QPropertyAnimation(button4, "geometry");
- anim->setDuration(1000);
- anim->setEasingCurve(QEasingCurve::OutElastic);
- animationGroup.addAnimation(anim);
-//![5]
-
-//![6]
- subGroup = new QSequentialAnimationGroup(&animationGroup);
- subGroup->addPause(100);
- anim = new QPropertyAnimation(button3, "geometry");
- anim->setDuration(1000);
- anim->setEasingCurve(QEasingCurve::OutElastic);
- subGroup->addAnimation(anim);
-//![6]
-
- subGroup = new QSequentialAnimationGroup(&animationGroup);
- subGroup->addPause(150);
- anim = new QPropertyAnimation(button2, "geometry");
- anim->setDuration(1000);
- anim->setEasingCurve(QEasingCurve::OutElastic);
- subGroup->addAnimation(anim);
-
- subGroup = new QSequentialAnimationGroup(&animationGroup);
- subGroup->addPause(200);
- anim = new QPropertyAnimation(button1, "geometry");
- anim->setDuration(1000);
- anim->setEasingCurve(QEasingCurve::OutElastic);
- subGroup->addAnimation(anim);
-
-//![7]
- StateSwitcher *stateSwitcher = new StateSwitcher(&machine);
- stateSwitcher->setObjectName("stateSwitcher");
- group->addTransition(&timer, &QTimer::timeout, stateSwitcher);
- stateSwitcher->addState(state1, &animationGroup);
- stateSwitcher->addState(state2, &animationGroup);
-//![7]
- stateSwitcher->addState(state3, &animationGroup);
- stateSwitcher->addState(state4, &animationGroup);
- stateSwitcher->addState(state5, &animationGroup);
- stateSwitcher->addState(state6, &animationGroup);
-//![8]
- stateSwitcher->addState(state7, &animationGroup);
-//![8]
-
-//![9]
- machine.addState(group);
- machine.setInitialState(group);
- machine.start();
-//![9]
-
- window.resize(300, 300);
- window.show();
-
- return app.exec();
-}
-
-#include "main.moc"
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 11:09:03 +0000