int sectionByScenePos(int x);
inline int sectionByScenePos(const QPoint &pos) { return sectionByScenePos(pos.x()); }
inline bool isSingleBufferScene() const { return _singleBufferScene; }
+ inline ChatLine *chatLine(int row) { return (row < _lines.count()) ? _lines[row] : 0; }
public slots:
void setWidth(qreal);