Qt绘图paint移动画家

void paintEvent(QPaintEvent *event) override
{
    QPainter painter(this);
    painter.drawEllipse(QPoint(100, 100), 50, 50);

    /* 移动画家 */
    painter.translate(QPoint(100, 0));
    painter.drawEllipse(QPoint(100, 100), 50, 50);
}