void setFirstColumn(const qreal ×tampWidth, const qreal &senderWidth, const QPointF &senderPos);
// setSecondColumn and setGeometryByWidth both also relocate the chatline.
void setFirstColumn(const qreal ×tampWidth, const qreal &senderWidth, const QPointF &senderPos);
// setSecondColumn and setGeometryByWidth both also relocate the chatline.