Method loadMatrix

src/backend/datasources/projects/OriginProjectParser.cpp:1180–1234

}

bool OriginProjectParser::loadMatrix(Matrix* matrix, bool preview, size_t sheetIndex, const QString& mwbName) {
	DEBUG(Q_FUNC_INFO)
	// import matrix data
	const auto& originMatrix = m_originFile->matrix(findMatrixByName(mwbName));

	if (preview)
		return true;

	// in Origin column width is measured in characters, we need to convert to pixels
	// TODO: determine the font used in Origin in order to get the same column width as in Origin
	QFont font;
	QFontMetrics fm(font);
	const int scaling_factor = fm.maxWidth();

	const auto& layer = originMatrix.sheets.at(sheetIndex);
	const int colCount = layer.columnCount;
	const int rowCount = layer.rowCount;

	matrix->setRowCount(rowCount);
	matrix->setColumnCount(colCount);
	matrix->setFormula(QString::fromStdString(layer.command));

	// TODO: how to handle different widths for different columns?
	for (int j = 0; j < colCount; j++)
		matrix->setColumnWidth(j, layer.width * scaling_factor);

	// TODO: check column major vs. row major to improve the performance here
	for (int i = 0; i < rowCount; i++) {
		for (int j = 0; j < colCount; j++)
			matrix->setCell(i, j, layer.data[j + i * colCount]);
	}

	char format = 'g';
	// TODO: prec not support by Matrix
	// int prec = 6;
	switch (layer.valueTypeSpecification) {
	case 0: // Decimal 1000
		format = 'f';
		//	prec = layer.decimalPlaces;
		break;
	case 1: // Scientific
		format = 'e';
		//	prec = layer.decimalPlaces;
		break;
	case 2: // Engineering
	case 3: // Decimal 1,000
		format = 'g';
		//	prec = layer.significantDigits;
		break;
	}

	matrix->setNumericFormat(format);

	return true;
}

bool OriginProjectParser::loadWorksheet(Worksheet* worksheet, bool preview) {
	DEBUG(Q_FUNC_INFO << ", preview = " << preview)