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 | /****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtScxml 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef TRAFFICLIGHT_H
#define TRAFFICLIGHT_H
#include <QScxmlStateMachine>
#include <QWidget>
#include <QAbstractButton>
class TrafficLight : public QWidget
{
    Q_OBJECT
public:
    TrafficLight(QScxmlStateMachine *machine, QWidget *parent = 0);
private slots:
    void toggleWorking(bool pause);
private:
    QScxmlStateMachine *m_machine;
};
class LightWidget: public QWidget
{
    Q_OBJECT
    Q_PROPERTY(bool on READ isOn WRITE setOn)
public:
    LightWidget(const QString &image, QWidget *parent = 0);
    bool isOn() const;
    void setOn(bool on);
public slots:
    void switchLight(bool onoff);
protected:
    virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
    virtual QSize sizeHint() const Q_DECL_OVERRIDE;
private:
    QImage m_image;
    bool m_on;
};
class ButtonWidget : public QAbstractButton
{
    Q_OBJECT
public:
    ButtonWidget(QWidget *parent = 0);
protected:
    virtual void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
    virtual QSize sizeHint() const Q_DECL_OVERRIDE;
private:
    QImage m_playIcon;
    QImage m_pauseIcon;
};
#endif // TRAFFICLIGHT_H
 |