Class TextCommandInfo

MyGUIEngine/include/MyGUI_TextChangeHistory.h:19–56

information about single text change operation

	// information about single text change operation
	struct TextCommandInfo
	{
		enum CommandType
		{
			COMMAND_POSITION,
			COMMAND_INSERT,
			COMMAND_ERASE
		};

		// for COMMAND_INSERT and COMMAND_ERASE
		TextCommandInfo(const UString::utf32string& _text, size_t _start, CommandType _type) :
			text(_text),
			type(_type),
			start(_start),
			undo(ITEM_NONE),
			redo(ITEM_NONE),
			length(ITEM_NONE)
		{
		}

		// for COMMAND_POSITION
		TextCommandInfo(size_t _undo, size_t _redo, size_t _length) :
			type(COMMAND_POSITION),
			start(ITEM_NONE),
			undo(_undo),
			redo(_redo),
			length(_length)
		{
		}

		// inserted/erased string
		UString::utf32string text;
		CommandType type;
		// text start position
		size_t start;
		// pseudo position
		size_t undo, redo, length;
	};

	using VectorChangeInfo = std::vector<TextCommandInfo>;
	using DequeUndoRedoInfo = std::deque<VectorChangeInfo>;