// senderItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
_senderItem.setGeometry(senderWidth, _height);
_senderItem.setPos(senderPos);
// senderItem doesn't need a geom change as it's Pos is changed (ensured by void ChatScene::firstHandlePositionChanged(qreal xpos))
_senderItem.setGeometry(senderWidth, _height);
_senderItem.setPos(senderPos);