Class FileDialog

ImFileDialog.h:17–140

namespace ifd {
	class FileDialog {
	public:
		static inline FileDialog& Instance()
		{
			static FileDialog ret;
			return ret;
		}

		FileDialog();
		~FileDialog();

		bool Save(const std::string& key, const std::string& title, const std::string& filter, const std::string& startingDir = "");

		bool Open(const std::string& key, const std::string& title, const std::string& filter, bool isMultiselect = false, const std::string& startingDir = "");

		bool IsDone(const std::string& key);

		inline bool HasResult() { return m_result.size(); }
		inline const std::filesystem::path& GetResult() { return m_result[0]; }
		inline const std::vector<std::filesystem::path>& GetResults() { return m_result; }

		void Close();

		void RemoveFavorite(const std::string& path);
		void AddFavorite(const std::string& path);
		inline const std::vector<std::string>& GetFavorites() { return m_favorites; }

		inline void SetZoom(float z) { 
			m_zoom = std::min<float>(25.0f, std::max<float>(1.0f, z)); 
			m_refreshIconPreview();
		}
		inline float GetZoom() { return m_zoom; }

		std::function<void*(uint8_t*, int, int, char)> CreateTexture; // char -> fmt -> { 0 = BGRA, 1 = RGBA }
		std::function<void(void*)> DeleteTexture;

		class FileTreeNode {
		public:
#ifdef _WIN32
			FileTreeNode(const std::wstring& path) {
				Path = std::filesystem::path(path);
				Read = false;
			}
#endif

			FileTreeNode(const std::string& path) {
				Path = std::filesystem::u8path(path);
				Read = false;
			}

			std::filesystem::path Path;
			bool Read;
			std::vector<FileTreeNode*> Children;
		};
		class FileData {
		public:
			FileData(const std::filesystem::path& path);