在QT C++中为行或列添加鼠标右键并添加复制选项

#include <QtWidgets>

class CustomTableView : public QTableView
{
public:
    CustomTableView(QWidget* parent = nullptr) : QTableView(parent) {}

protected:
    void mousePressEvent(QMouseEvent* event) override
    {
        if (event->button() == Qt::RightButton)
        {
            QMenu menu(this);
            QAction* copyAction = menu.addAction("复制");
            connect(copyAction, &QAction::triggered, this, &CustomTableView::copySelectedData);
            menu.exec(event->globalPos());
        }
        else
        {
            QTableView::mousePressEvent(event);
        }
    }

private slots:
    void copySelectedData()
    {
        QItemSelectionModel* selectionModel = this->selectionModel();
        QModelIndexList selectedIndexes = selectionModel->selectedIndexes();

        QString copiedData;
        int previousRow = -1;
        foreach (const QModelIndex& index, selectedIndexes)
        {
            if (index.row() != previousRow)
            {
                copiedData += "\n";
                previousRow = index.row();
            }
            copiedData += index.data().toString() + "\t";
        }

        QApplication::clipboard()->setText(copiedData);
    }
};

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);

    CustomTableView tableView;
    QStandardItemModel model(4, 3);
    for (int row = 0; row < 4; ++row)
    {
        for (int column = 0; column < 3; ++column)
        {
            QModelIndex index = model.index(row, column);
            model.setData(index, QString("Row %1, Column %2").arg(row).arg(column));
        }
    }
    tableView.setModel(&model);
    tableView.show();

    return app.exec();
}