48e0c4df23
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb Reviewed-by: Lars Knoll <lars.knoll@digia.com>
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtWidgets>
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//! [0]
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class Window : public QWidget
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{
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public:
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Window(QWidget *parent = 0)
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: QWidget(parent)
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{
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QPushButton *button = new QPushButton(this);
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button->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
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QVBoxLayout *layout = new QVBoxLayout;
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layout->addWidget(button);
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layout->setContentsMargins(80, 80, 80, 80);
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setLayout(layout);
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//! [0]
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//! [1]
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QStateMachine *machine = new QStateMachine(this);
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QState *s1 = new QState();
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s1->assignProperty(button, "text", "Outside");
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QState *s2 = new QState();
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s2->assignProperty(button, "text", "Inside");
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//! [1]
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//! [2]
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QEventTransition *enterTransition = new QEventTransition(button, QEvent::Enter);
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enterTransition->setTargetState(s2);
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s1->addTransition(enterTransition);
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//! [2]
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//! [3]
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QEventTransition *leaveTransition = new QEventTransition(button, QEvent::Leave);
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leaveTransition->setTargetState(s1);
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s2->addTransition(leaveTransition);
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//! [3]
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//! [4]
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QState *s3 = new QState();
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s3->assignProperty(button, "text", "Pressing...");
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QEventTransition *pressTransition = new QEventTransition(button, QEvent::MouseButtonPress);
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pressTransition->setTargetState(s3);
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s2->addTransition(pressTransition);
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QEventTransition *releaseTransition = new QEventTransition(button, QEvent::MouseButtonRelease);
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releaseTransition->setTargetState(s2);
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s3->addTransition(releaseTransition);
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//! [4]
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//! [5]
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machine->addState(s1);
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machine->addState(s2);
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machine->addState(s3);
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machine->setInitialState(s1);
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machine->start();
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}
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};
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//! [5]
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//! [6]
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int main(int argc, char **argv)
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{
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QApplication app(argc, argv);
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Window window;
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window.resize(300, 300);
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window.show();
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return app.exec();
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}
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//! [6]
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