draw a filled up circle

Question

I've written a function that must draw a filled up black circle on my graphicsscene. The function draws a black lined circle but not filled up? This is my function:

void World::damage(int x, int y)
{
    QPainter painter(&worldImage);
    painter.setBrush(QBrush(Qt::black));
    painter.drawArc(x,y,150,50,0,16*360);
    item = new QGraphicsPixmapItem(QPixmap::fromImage(worldImage));
    this->addItem(item);

}

kind regards,

Answer 1

drawArc() does not use a fill color, use drawEllipse() for a full circle that is filled.

Answer 2

drawEllipse() alone didnt solved my problem

just I added painter.setBrush(Qt::red);

before drawEllipse()

and works perfect.