Method save

src/frontend/widgets/FITSHeaderEditWidget.cpp:221–265

! * \brief Triggered when clicking the Save button * Saves the modifications (new keywords, new keyword units, keyword modifications, * deleted keywords, deleted extensions) to the FITS files. * \return \c true if there was something saved, otherwise false */

 * \return \c true if there was something saved, otherwise false
 */
bool FITSHeaderEditWidget::save() {
	bool saved = false;

	QMap<QString, ExtensionData>::const_iterator it = m_extensionData.constBegin();
	while (it != m_extensionData.constEnd()) {
		const QString& fileName = it.key();
		const auto& data = it.value();
		if (data.updates.newKeywords.size() > 0) {
			m_fitsFilter->addNewKeyword(fileName, data.updates.newKeywords);
			if (!saved)
				saved = true;
		}
		if (data.updates.removedKeywords.size() > 0) {
			m_fitsFilter->deleteKeyword(fileName, data.updates.removedKeywords);
			if (!saved)
				saved = true;
		}
		if (!saved) {
			for (const FITSFilter::Keyword& key : data.updates.updatedKeywords) {
				if (!key.isEmpty()) {
					saved = true;
					break;
				}
			}
		}

		m_fitsFilter->updateKeywords(fileName, data.keywords, data.updates.updatedKeywords);
		m_fitsFilter->addKeywordUnit(fileName, data.keywords);
		m_fitsFilter->addKeywordUnit(fileName, data.updates.newKeywords);

		++it;
	}

	if (m_removedExtensions.size() > 0) {
		m_fitsFilter->removeExtensions(m_removedExtensions);
		if (!saved)
			saved = true;
	}
	if (saved) {
		// to reset the window title
		Q_EMIT changed(false);
	}

	return saved;
}

/*!
 * \brief Initializes the context menu's actions.