Russian Qt Forum

QPixmap createSphere(uchar diameter, const QColor& color) const
{
	QPixmap pixmap(diameter, diameter);
	pixmap.fill(Qt::transparent);

	QPainter p;
	p.begin(&pixmap);
	p.setRenderHint(QPainter::Antialiasing, true);
	p.setPen(QPen(Qt::NoPen));
	qreal gx = diameter * 0.3125;
	QRadialGradient gradient(gx, gx, diameter);
	gradient.setColorAt(0, QColor(255, 255, 255));
	gradient.setColorAt(0.5, color);
	gradient.setColorAt(1, color);
	p.setBrush(QBrush(gradient));
	p.drawEllipse(1, 1, diameter - 2, diameter - 2);
	p.end();

	return pixmap;
}