Function SelectEntities

qCC/ccCommandLineParser.cpp:419–531

}

template<class EntityDesc > bool SelectEntities(ccCommandLineInterface::SelectEntitiesOptions options,
												const ccCommandLineParser& cmd,
												std::vector<EntityDesc>& selectedEntities,
												std::vector<EntityDesc>& unselectedEntities,
												QString entityType)
{
	//early abort if no cloud found
	if (selectedEntities.empty() && unselectedEntities.empty())
	{
		//do not stop execution, just warn the user and return
		cmd.warning(QObject::tr("\tNo %1 loaded. Load some with the -O command").arg(entityType));
		return true;
	}

	if (options.selectRegex && !options.regex.isValid())
	{
		return cmd.error(QObject::tr("Regex string invalid: %1").arg(options.regex.errorString()));
	}

	try
	{
		//store everthyng in the unselected vector
		unselectedEntities.insert(unselectedEntities.end(), selectedEntities.begin(), selectedEntities.end());
		selectedEntities.clear();

		//sort the unselected clouds by uniqueID (so as to restore the order in which they were loaded/created)
		std::sort(unselectedEntities.begin(), unselectedEntities.end(), [](const EntityDesc& a, const EntityDesc& b) { return (a.getEntity()->getUniqueID() < b.getEntity()->getUniqueID()); });

		//put elements to the front facing vector
		unsigned index = 0;
		assert(!unselectedEntities.empty()); // we have tested above that neither selectedEntities and unselectedEntities are both empty
		size_t lastIndex = unselectedEntities.size() - 1;
		for (typename std::vector<EntityDesc>::iterator it = unselectedEntities.begin(); it != unselectedEntities.end();)
		{
			QString nameToValidate = QObject::tr("%1/%2").arg(it->basename).arg(it->getEntity()->getName());
			bool toBeSelected = false;
			if (!options.reverse)
			{
				//first {n}
				if (options.selectFirst && index < options.firstNr)
				{
					toBeSelected = true;
				}

				//last {n}
				if (options.selectLast && index > lastIndex - options.lastNr)
				{
					toBeSelected = true;
				}
			}
			else
			{
				//not first {n}
				if (options.selectFirst && index >= options.firstNr && !options.selectLast)
				{
					toBeSelected = true;
				}