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| void Label::paintEvent(QPaintEvent *e)
{
QPainter painter(this);
painter.save();
QFont font = painter.font();
font.setPixelSize(24);
painter.setFont(font);
painter.drawText(QPoint(0, 20), tr("HelloHello"));
const QRect rectangle = QRect(0, 30, 100, 50);
QRect boundingRect;
painter.drawText(rectangle, 0, tr("HelloHello"), &boundingRect);
QPen pen = painter.pen();
pen.setStyle(Qt::DotLine);
pen.setColor(Qt::red);
painter.setPen(pen);
painter.drawRect(boundingRect.adjusted(0, 0, -pen.width(), -pen.width()));
pen.setStyle(Qt::DashLine);
pen.setColor(Qt::green);
painter.setPen(pen);
painter.drawRect(rectangle.adjusted(0, 0, -pen.width(), -pen.width()));
qDebug() << "boundingRect1:"<< boundingRect;
painter.restore();
{
painter.save();
font.setBold(true);
painter.setFont(font);
painter.drawText(QPoint(0, 120), tr("HelloHello"));
const QRect rectangle = QRect(0, 130, 100, 50);
QRect boundingRect;
painter.drawText(rectangle, 0, tr("HelloHello"), &boundingRect);
QPen pen = painter.pen();
pen.setStyle(Qt::DotLine);
pen.setColor(Qt::red);
painter.setPen(pen);
painter.drawRect(boundingRect.adjusted(0, 0, -pen.width(), -pen.width()));
pen.setStyle(Qt::DashLine);
pen.setColor(Qt::green);
painter.setPen(pen);
painter.drawRect(rectangle.adjusted(0, 0, -pen.width(), -pen.width()));
qDebug() << "boundingRect2:"<< boundingRect;
painter.restore();
}
}
|
