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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 <QApplication>
-#include <QEventTransition>
-#include <QPushButton>
-#include <QStateMachine>
-#include <QVBoxLayout>
-#include <QWidget>
-
-//! [0]
-class Window : public QWidget
-{
-public:
- Window(QWidget *parent = nullptr)
- : QWidget(parent)
- {
- QPushButton *button = new QPushButton(this);
- button->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
-
- QVBoxLayout *layout = new QVBoxLayout;
- layout->addWidget(button);
- layout->setContentsMargins(80, 80, 80, 80);
- setLayout(layout);
-//! [0]
-
-//! [1]
- QStateMachine *machine = new QStateMachine(this);
-
- QState *s1 = new QState();
- s1->assignProperty(button, "text", "Outside");
-
- QState *s2 = new QState();
- s2->assignProperty(button, "text", "Inside");
-//! [1]
-
-//! [2]
- QEventTransition *enterTransition = new QEventTransition(button, QEvent::Enter);
- enterTransition->setTargetState(s2);
- s1->addTransition(enterTransition);
-//! [2]
-
-//! [3]
- QEventTransition *leaveTransition = new QEventTransition(button, QEvent::Leave);
- leaveTransition->setTargetState(s1);
- s2->addTransition(leaveTransition);
-//! [3]
-
-//! [4]
- QState *s3 = new QState();
- s3->assignProperty(button, "text", "Pressing...");
-
- QEventTransition *pressTransition = new QEventTransition(button, QEvent::MouseButtonPress);
- pressTransition->setTargetState(s3);
- s2->addTransition(pressTransition);
-
- QEventTransition *releaseTransition = new QEventTransition(button, QEvent::MouseButtonRelease);
- releaseTransition->setTargetState(s2);
- s3->addTransition(releaseTransition);
-//! [4]
-
-//! [5]
- machine->addState(s1);
- machine->addState(s2);
- machine->addState(s3);
-
- machine->setInitialState(s1);
- machine->start();
- }
-};
-//! [5]
-
-//! [6]
-int main(int argc, char **argv)
-{
- QApplication app(argc, argv);
- Window window;
- window.resize(300, 300);
- window.show();
-
- return app.exec();
-}
-//! [6]