QTableWidget 设置labl

WarnLabel* label = new WarnLabel(ui->tableWidget);//状态,设置大小居中

            label->setMinimumSize(23,23);

            label->setMaximumSize(23,23);

            label->setObjectName("state");

            QWidget* widget = new QWidget(ui->tableWidget);

            QVBoxLayout *v = new QVBoxLayout;v->deleteLater();

            v->addWidget(label);

            v->setAlignment(label,Qt::AlignCenter);

            v->setSpacing(0);

            v->setMargin(0);

            widget->setLayout(v);

            ui->tableWidget->setCellWidget(rowCount, 7, widget);

            ui->tableWidget->cellWidget(rowCount, 7)->findChild<WarnLabel*>("state")->changeColor((Label_Color)query.value("state").toInt());