QeLed.hpp

#ifndef QELED_H
#define QELED_H
 
#include <QWidget>
#include <QtSvg/QtSvg>
#include <QtSvg/QSvgRenderer>
#include <QColor>
#include <QXmlStreamReader>

class QeLed : public QWidget
{
    Q_OBJECT

    Q_PROPERTY(QColor colorOn READ colorOn WRITE setColorOn NOTIFY colorOnChanged)
 
    
    Q_PROPERTY(QColor colorOff READ colorOff WRITE setColorOff NOTIFY colorOffChanged)

    Q_PROPERTY(bool lit READ isLit WRITE setLit NOTIFY toggled)

    Q_PROPERTY(bool negate READ isNegated WRITE setNegate NOTIFY negated)
 
public:
    explicit QeLed(QWidget *parent = nullptr);
    QColor colorOn(){ return this->m_colorOn;}
    QColor colorOff(){ return this->m_colorOff;}
    bool isLit(){ return this->m_lit;}
    bool isNegated(){ return this->m_negate;}
    QSize sizeHint() const {
        return QSize(80,80);
    }
 
public slots:
    void setColorOn(QColor newColorOn){
        if(this->m_colorOn == newColorOn){
            return;
        }
        this->m_colorOn = newColorOn;
        this->update();
        emit colorOnChanged(newColorOn);
    }
 
    void setColorOff(QColor newColorOff){
        if(this->m_colorOff == newColorOff){
            return;
        }
        this->m_colorOff = newColorOff;
        this->update();
        emit colorOffChanged(newColorOff);
    }
 
    void setLit(bool newValue){
        if(this->m_lit == newValue){
            return;
        }
        this->m_lit = newValue;
        this->update();
        emit toggled(newValue);
    }
 
    void setNegate(bool newValue){
        this->m_negate = newValue;
        this->update();
        emit negated(newValue);
    }
 
signals:
    void colorOnChanged(QColor newColorOn);

    void colorOffChanged(QColor newColorOff);

    void toggled(bool newValue);

    void negated(bool newValue);
 
protected:
    void paintEvent(QPaintEvent *event) override;
    void resizeEvent(QResizeEvent *event) override;
    void changeEvent(QEvent *event) override;
private:
    bool m_lit = true;
    bool m_negate = false;
    QColor m_colorOn = QColorConstants::Svg::green;
    QColor m_colorOff = QColorConstants::Svg::green.darker(240);
 
    void paint_gloss(QPainter &painter, float center_x, float center_y, float gloss_radius, float alpha0, float alpha1, QRectF &target_rect, float mid_stop);
};
 
#endif // QELED_H