在Qt中为QTableView创建弹出菜单

table_view->installEventFilter(this);

bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
    if (obj == table_view && event->type() == QEvent::MouseButtonPress) {
        QMouseEvent *mouse_event = static_cast<QMouseEvent*>(event);
        if (mouse_event->button() == Qt::RightButton) {
            QPoint global_pos = mouse_event->globalPos();
            QPoint table_view_pos = table_view->mapToGlobal(QPoint(0, 0));
            QPoint pos = global_pos - table_view_pos;
            QModelIndex index = table_view->indexAt(pos);
            if (index.isValid()) {
                QMenu menu(this);
                QAction *action1 = new QAction("Action 1", this);
                QAction *action2 = new QAction("Action 2", this);
                menu.addAction(action1);
                menu.addAction(action2);
                menu.exec(global_pos);
            }
        }
    }
    return QMainWindow::eventFilter(obj, event);
}

QStandardItemModel *model = new QStandardItemModel(this);
model->setHorizontalHeaderLabels(QStringList() << "Column 1" << "Column 2");
table_view->setModel(model);