context menu for table

hi everyone,
I create a context menu for a dialog .It is working fine.But my problem is to restrict within the table view.

Code:

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QMenu menu(this);
menu.addAction(deleteAct);
menu.exec(event->globalPos());

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Here i am using globalpos() .but i dont know what to use to restrict it.

plz gvie some soln.

Have a look at QWidget::mapFromGlobal().

thanks for reply.
Actually i got the answer.
ie.

Code:

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item = new QAction(QIcon("icon_image.png"), "Item Name", this);
connect(item, SIGNAL(triggered()), this, SLOT(on_actionTaken_clicked()));
this->ui->tableView->addAction(item);
this->ui->tableView->setContextMenuPolicy(Qt::ActionsContextMenu);

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