Method m_sortContent

ImFileDialog.cpp:1001–1059

		m_refreshIconPreview();
	}
	void FileDialog::m_sortContent(unsigned int column, unsigned int sortDirection)
	{
		// 0 -> name, 1 -> date, 2 -> size
		m_sortColumn = column;
		m_sortDirection = sortDirection;

		// split into directories and files
		std::partition(m_content.begin(), m_content.end(), [](const FileData& data) {
			return data.IsDirectory;
		});

		if (m_content.size() > 0) {
			// find where the file list starts
			size_t fileIndex = 0;
			for (; fileIndex < m_content.size(); fileIndex++)
				if (!m_content[fileIndex].IsDirectory)
					break;

			// compare function
			auto compareFn = [column, sortDirection](const FileData& left, const FileData& right) -> bool {
				// name
				if (column == 0) {
					std::string lName = left.Path.u8string();
					std::string rName = right.Path.u8string();

					std::transform(lName.begin(), lName.end(), lName.begin(), ::tolower);
					std::transform(rName.begin(), rName.end(), rName.begin(), ::tolower);

					int comp = lName.compare(rName);

					if (sortDirection == ImGuiSortDirection_Ascending)
						return comp < 0;
					return comp > 0;
				}
				// date
				else if (column == 1) {
					if (sortDirection == ImGuiSortDirection_Ascending)
						return left.DateModified < right.DateModified;
					else
						return left.DateModified > right.DateModified;
				}
				// size
				else if (column == 2) {
					if (sortDirection == ImGuiSortDirection_Ascending)
						return left.Size < right.Size;
					else
						return left.Size > right.Size;
				}

				return false;
			};

			// sort the directories
			std::sort(m_content.begin(), m_content.begin() + fileIndex, compareFn);

			// sort the files
			std::sort(m_content.begin() + fileIndex, m_content.end(), compareFn);
		}