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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #ifndef TRAFFICLIGHT_H
++ #define TRAFFICLIGHT_H
++
++ #include <QtWidgets/qwidget.h>
++ #include <QtWidgets/qabstractbutton.h>
++ #include <QtScxml/qscxmlstatemachine.h>
++
++ class TrafficLight : public QWidget
++ {
++ Q_OBJECT
++
++ public:
++ TrafficLight(QScxmlStateMachine *machine, QWidget *parent = nullptr);
++
++ 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 = nullptr);
++
++ bool isOn() const;
++ void setOn(bool on);
++
++ public slots:
++ void switchLight(bool onoff);
++
++ protected:
++ void paintEvent(QPaintEvent *) override;
++ QSize sizeHint() const override;
++
++ private:
++ QImage m_image;
++ bool m_on = false;
++ };
++
++ class ButtonWidget : public QAbstractButton
++ {
++ Q_OBJECT
++ public:
++ ButtonWidget(QWidget *parent = nullptr);
++
++ protected:
++ void paintEvent(QPaintEvent *) override;
++ QSize sizeHint() const override;
++
++ private:
++ QImage m_playIcon;
++ QImage m_pauseIcon;
++ };
++
++ #endif // TRAFFICLIGHT_H