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//! [0]
int leading = fontMetrics.leading();
qreal height = 0;
qreal widthUsed = 0;
textLayout.beginLayout();
while (1) {
QTextLine line = textLayout.createLine();
if (!line.isValid())
break;
line.setLineWidth(lineWidth);
height += leading;
line.setPosition(QPointF(0, height));
height += line.height();
widthUsed = qMax(widthUsed, line.naturalTextWidth());
}
textLayout.endLayout();
//! [0]
//! [1]
QPainter painter(this);
textLayout.draw(&painter, QPoint(0, 0));
//! [1]
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