Method addTopicToTree

src/frontend/dockwidgets/LiveDataDock.cpp:683–762

! *\brief Adds topicName to twTopics * * \param topicName the name of the topic, which will be added to the tree widget */

 * \param topicName the name of the topic, which will be added to the tree widget
 */
void LiveDataDock::addTopicToTree(const QString& topicName) {
	QStringList name;
	QChar sep = QLatin1Char('/');
	QString rootName;
	if (topicName.contains(sep)) {
		QStringList list = topicName.split(sep, Qt::SkipEmptyParts);

		if (!list.isEmpty()) {
			rootName = list.at(0);
			name.append(list.at(0));
			QTreeWidgetItem* currentItem;
			// check whether the first level of the topic can be found in twTopics
			int topItemIdx = -1;
			for (int i = 0; i < m_subscriptionWidget->topicCount(); ++i) {
				if (m_subscriptionWidget->topLevelTopic(i)->text(0) == list.at(0)) {
					topItemIdx = i;
					break;
				}
			}
			// if not we simply add every level of the topic to the tree
			if (topItemIdx < 0) {
				currentItem = new QTreeWidgetItem(name);
				m_subscriptionWidget->addTopic(currentItem);
				for (int i = 1; i < list.size(); ++i) {
					name.clear();
					name.append(list.at(i));
					currentItem->addChild(new QTreeWidgetItem(name));
					currentItem = currentItem->child(0);
				}
			}
			// otherwise we search for the first level that isn't part of the tree,
			// then add every level of the topic to the tree from that certain level
			else {
				currentItem = m_subscriptionWidget->topLevelTopic(topItemIdx);
				int listIdx = 1;
				for (; listIdx < list.size(); ++listIdx) {
					QTreeWidgetItem* childItem = nullptr;
					bool found = false;
					for (int j = 0; j < currentItem->childCount(); ++j) {
						childItem = currentItem->child(j);
						if (childItem->text(0) == list.at(listIdx)) {
							found = true;
							currentItem = childItem;
							break;
						}
					}
					if (!found) {
						// this is the level that isn't present in the tree
						break;
					}
				}

				// add every level to the tree starting with the first level that isn't part of the tree
				for (; listIdx < list.size(); ++listIdx) {
					name.clear();
					name.append(list.at(listIdx));
					currentItem->addChild(new QTreeWidgetItem(name));
					currentItem = currentItem->child(currentItem->childCount() - 1);