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** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
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#ifndef TREFOILKNOT_H
#define TREFOILKNOT_H

#include <Qt3DCore/QEntity>
#include <Qt3DCore/QTransform>
#include <Qt3DRender/QMesh>

class TrefoilKnot : public Qt3DCore::QEntity
{
    Q_OBJECT
    Q_PROPERTY(float theta READ theta WRITE setTheta NOTIFY thetaChanged)
    Q_PROPERTY(float phi READ phi WRITE setPhi NOTIFY phiChanged)
    Q_PROPERTY(float scale READ scale WRITE setScale NOTIFY scaleChanged)
    Q_PROPERTY(QVector3D position READ position WRITE setPosition NOTIFY positionChanged)

public:
    explicit TrefoilKnot(Qt3DCore::QNode *parent = 0);
    ~TrefoilKnot();

    float theta() const;
    float phi() const;
    QVector3D position() const;
    float scale() const;

public slots:
    void setTheta(float theta);
    void setPhi(float phi);
    void setPosition(QVector3D position);
    void setScale(float scale);

signals:
    void thetaChanged(float theta);
    void phiChanged(float phi);
    void positionChanged(QVector3D position);
    void scaleChanged(float scale);

protected:
    void updateTransform();

private:
    Qt3DRender::QMesh *m_mesh;
    Qt3DCore::QTransform *m_transform;
    float m_theta;
    float m_phi;
    QVector3D m_position;
    float m_scale;
};

#endif // TREFOILKNOT_H