+ ColumnHandleItem *firstColHandle, *secondColHandle;
+ qreal firstColHandlePos, secondColHandlePos;
+
+ ChatItem *_selectingItem, *_lastItem;
+ QSet<ChatLine *> _selectedItems;
+ int _selectionStartCol, _selectionMinCol;
+ int _selectionStart;
+ int _selectionEnd;
+ bool _isSelecting;