小编emr*_*dog的帖子

我正在开发一个 Windows 应用程序，在对话框中我从 Postgres 查询一些数据，并手动在表小部件中显示输出。

m_ui->tableWidget->setRowCount(joinedData.count());
for(int i=0; i<joinedData.count(); i++) //for each row
{
        m_ui->tableWidget->setItem(i, 0, new QTableWidgetItem(joinedData[i].bobin.referenceNumber));
        m_ui->tableWidget->setItem(i, 1, new QTableWidgetItem(QString::number(joinedData[i].bobin.width)));
        m_ui->tableWidget->setItem(i, 2, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getHole())));
        m_ui->tableWidget->setItem(i, 3, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getLessThanZeroFive())));                      m_ui->tableWidget->setItem(i, 4, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getZeroFive_to_zeroSeven())));
        m_ui->tableWidget->setItem(i, 5, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getZeroFive_to_zeroSeven_repetitive())));
        m_ui->tableWidget->setItem(i, 6, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getZeroSeven_to_Three())));
        m_ui->tableWidget->setItem(i, 7, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getThree_to_five())));
        m_ui->tableWidget->setItem(i, 8, new QTableWidgetItem(QString::number(joinedData[i].tolerance.getMoreThanFive())));
 }

另外，根据行和列信息，我将其中一些表格小部件绘制为某些颜色，但我认为这不相关。

我重新实现了 QDialog 的 contextMenuEvent，以获取右键单击的 tableWidgetItem 的行和列坐标：

void BobinFlanView::contextMenuEvent(QContextMenuEvent *event)
{
    QMenu menu(m_ui->tableWidget);
    //standard actions
    menu.addAction(this->markInactiveAction);
    menu.addAction(this->markActiveAction);
    menu.addSeparator();
    menu.addAction(this->exportAction);
    menu.addAction(this->exportAllAction);

    //obtain the rightClickedItem
    QTableWidgetItem* clickedItem = m_ui->tableWidget->itemAt(m_ui->tableWidget->mapFromGlobal(event->globalPos()));



    // if …