// contentsItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
linePos -= height;
// contentsItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
qreal height = _contentsItem.setGeometryByWidth(contentsWidth);
linePos -= height;