QTableWidget中添加按钮

void QTableWidget::setCellWidget ( int row, int column, QWidget * widget )

class MyPushButton : public QPushButton
{
    Q_OBJECT
public:
    explicit MyPushButton(int i, int j, int flag);
    ~MyPushButton();
    void mySetText();//i对应端口信息
}

mySetText()函数中：

setStyleSheet("background-color: rgb(255, 100, 0);");//橙色
setToolTip(tr("端口未授权"));//配置的MAC地址和采集卡不符合
setText(tr("端口%1").arg(m_no + 1));

QSignalMapper* signalMapper = new QSignalMapper(this);

connect(newBtn, SIGNAL(clicked()), signalMapper, SLOT(map()));

//存储按钮
signalMapper->setMapping(newBtn, QString("%1-%2").arg(rowCount).arg(i + 2));

connect(signalMapper, SIGNAL(mapped(const QString &)),this, SLOT(changed(const QString &)));


//槽函数
void MainWindow::changed(QString position)
{
    QStringList coordinates = position.split("-");
    int row = coordinates[0].toInt();
    int col = coordinates[1].toInt();
    disPlayPort(row,col);//row 和col就是对应的行和列，对应到相应的按钮
}