for (auto &i : items)
max_rect = max_rect.united(i->label_rect(QRect()));
return QSize(0, sizeHint().height() - max_rect.top() / 2 +
for (auto &i : items)
max_rect = max_rect.united(i->label_rect(QRect()));
return QSize(0, sizeHint().height() - max_rect.top() / 2 +