Method draw

src/backend/worksheet/plots/cartesian/Histogram.cpp:1493–1527

}

void HistogramPrivate::draw(QPainter* painter) {
	PERFTRACE(name() + QLatin1String(Q_FUNC_INFO));

	// drawing line
	if (line->histogramLineType() != Histogram::NoLine) {
		painter->setOpacity(line->opacity());
		painter->setPen(line->pen());
		painter->setBrush(Qt::NoBrush);
		painter->drawPath(linePath);
	}

	// draw filling
	if (background->enabled())
		background->draw(painter, fillPolygon);

	// draw symbols
	symbol->draw(painter, pointsScene);

	// draw values
	value->draw(painter, valuesPoints, valuesStrings);

	// draw error bars
	if (errorBar->yErrorType() != ErrorBar::ErrorType::NoError)
		errorBar->draw(painter, errorBarsPath);

	// draw rug
	if (rugEnabled) {
		QPen pen;
		pen.setColor(line->pen().color());
		pen.setWidthF(rugWidth);
		painter->setPen(pen);
		painter->setOpacity(line->opacity());
		painter->drawPath(rugPath);
	}
}

void HistogramPrivate::updatePixmap() {
	m_pixmap = QPixmap(m_boundingRectangle.width(), m_boundingRectangle.height());