Method run

src/frontend/spreadsheet/SparklineRunnable.cpp:17–101

#include <QWidget>

void SparkLineRunnable::run() {
	if (col->columnMode() != Column::ColumnMode::Text && !col->isPlottable()) {
		mPixmap = QPixmap(1, 1);
		mPixmap.fill(QColor(49, 54, 59));
		return;
	}

	static const QString sparklineTheme = QStringLiteral("Sparkline");
	static const QString sparklineText = QStringLiteral("add-sparkline");

	auto* worksheet = new Worksheet(sparklineText);
	worksheet->setUndoAware(false);
	worksheet->setUseViewSize(true);
	worksheet->setLayoutBottomMargin(0);
	worksheet->setLayoutTopMargin(0);
	worksheet->setLayoutLeftMargin(0);
	worksheet->setLayoutRightMargin(0);

	auto* plot = new CartesianPlot(sparklineText);
	plot->setSuppressRetransform(true);
	plot->setVerticalPadding(2);
	plot->setRightPadding(2);
	plot->setBottomPadding(2);
	plot->setHorizontalPadding(2);
	worksheet->addChild(plot);

	QApplication::processEvents(QEventLoop::AllEvents, 100);
	if (col->columnMode() == Column::ColumnMode::Text) {
		auto* barPlot = new BarPlot(QString());
		barPlot->setSuppressRetransform(true);
		barPlot->setOrientation(BarPlot::Orientation::Vertical);

		// generate columns holding the data and the labels
		auto* dataColumn = new Column(QStringLiteral("data"));
		dataColumn->setColumnMode(AbstractColumn::ColumnMode::Integer);

		// sort the frequencies and the accompanying labels
		const auto& frequencies = col->frequencies();
		auto i = frequencies.constBegin();
		QVector<QPair<QString, int>> pairs;
		while (i != frequencies.constEnd()) {
			pairs << QPair<QString, int>(i.key(), i.value());
			++i;
		}

		QVector<int> data;
		for (const auto& pair : std::as_const(pairs))
			data << pair.second;
		dataColumn->replaceInteger(0, data);
		const QVector<const AbstractColumn*> columns{dataColumn};
		barPlot->setDataColumns(columns);
		plot->addChild(barPlot);
		barPlot->setSuppressRetransform(false);
	} else {
		const int rowCount = col->rowCount();
		QVector<int> xData(rowCount);
		xData.resize(rowCount);