void ViewportPainter::drawBezierCurve(BezierCurve & curve) {
    Point2D * beginPoint = curve.getBeginPoint();
    Point2D * endPoint = curve.getEndPoint();
    Point2D * controlPoint = curve.getControlPoint();
    
    // Plus tard dessin de la courbe :
    // this->drawArc(beginPoint->x(),beginPoint->y(),endPoint->x()-beginPoint->x(),endPoint->y()-beginPoint->y(),0*16,360*16);
      
    this->drawLine(beginPoint->x(),beginPoint->y(),endPoint->x(),endPoint->y());
    
    // Dessin du vecteur
    /*this->setPen(QColor(255, 120, 0, 255));
    this->drawPoint(*controlPoint);
    this->drawLine(beginPoint->x(),beginPoint->y(),controlPoint->x(),controlPoint->y());
    // Dessiner la fleche du vecteur
    //this->drawLine(controlPoint->x(),controlPoint->y());
    //this->drawLine(controlPoint->x(),controlPoint->y());
    this->setPen(QColor(0, 0, 0, 255));*/
}