Method currentFileFilter

src/frontend/datasources/ImportFileWidget.cpp:737–1002

! returns the currently used filter. */

	returns the currently used filter.
*/
AbstractFileFilter* ImportFileWidget::currentFileFilter() const {
	auto fileType = currentFileType();
	if (m_currentFilter && m_currentFilter->type() != fileType)
		m_currentFilter.reset();

	switch (fileType) {
	case AbstractFileFilter::FileType::Ascii: {
		DEBUG(Q_FUNC_INFO << ", ASCII");
		if (!m_currentFilter)
			m_currentFilter.reset(new AsciiFilter);
		auto filter = static_cast<AsciiFilter*>(m_currentFilter.get());
		auto properties = filter->defaultProperties();

		// set the data portion to import
		properties.startRow = ui.sbStartRow->value();
		properties.endRow = ui.sbEndRow->value();
		properties.startColumn = ui.sbStartColumn->value();
		properties.endColumn = ui.sbEndColumn->value();

		const bool automatic = ui.cbFilter->currentIndex() == FilterSettingsHandlingIndex::Automatic;
		if ((!m_liveDataSource || currentSourceType() == LiveDataSource::SourceType::FileOrPipe) && automatic) {
			properties.automaticSeparatorDetection = true;
			properties.removeQuotes = true;
			if (m_asciiOptionsWidget)
				m_asciiOptionsWidget->updateWidgets(properties);
		} else { //"custom" and templates
			properties.automaticSeparatorDetection = false;

			// set the remaining filter settings
			if (m_asciiOptionsWidget && !automatic)
				m_asciiOptionsWidget->applyFilterSettings(properties);
		}
		// Both required, because initialize might fail and then no properties are set
		// Initialize is required for livedata (sequential devices)
		filter->setProperties(properties);
		filter->initialize(properties);

		break;
	}
	case AbstractFileFilter::FileType::Binary: {
		DEBUG(Q_FUNC_INFO << ", Binary");
		if (!m_currentFilter)
			m_currentFilter.reset(new BinaryFilter);
		auto filter = static_cast<BinaryFilter*>(m_currentFilter.get());

		if (ui.cbFilter->currentIndex() == FilterSettingsHandlingIndex::Automatic)
			filter->setAutoModeEnabled(true);
		else { //"custom" and templates
			filter->setAutoModeEnabled(false);
			if (m_binaryOptionsWidget)
				m_binaryOptionsWidget->applyFilterSettings(filter);
		}

		filter->setStartRow(ui.sbStartRow->value());
		filter->setEndRow(ui.sbEndRow->value());

		break;
	}