Indicator.hpp

#ifndef HEADER__INDICATOR_HPP
#define HEADER__INDICATOR_HPP

#include <QWidget>
#include <QPainter>

class Indicator : public QWidget
{
public:
 enum class State
 {
 Off,
 On,
 Busy
 };

private:
 Q_OBJECT
 Q_PROPERTY(State state READ state WRITE setState NOTIFY stateChanged)

public:
 explicit Indicator(QWidget* parent=nullptr);

 inline State state() const noexcept;

public slots:
 void setState(State state) noexcept;

signals:
 void stateChanged();

protected:
 virtual void paintEvent(QPaintEvent *event) override;

private:
 Indicator(const Indicator&)=delete;
 Indicator& operator=(const Indicator&)=delete;

private:
 State mState;
};

inline Indicator::State Indicator::state() const noexcept
{
 return mState;
}


#endif // HEADER__INDICATOR_HPP