Connaître le N° de la ligne modifiée dans QTableWidget

En fait je dispose d'un QTableWidget qui se compose de plusieurs cellWidget (pas de QTableWidgetItem), je désire savoir le numéro de la ligne lorsque je clique sur un cellWidget.
En fait je veux uniquement enregistrer les modifications faites et non tout la QTableWidget.
Etant donné que la méthode row a comme paramètre QTableWidgetItem.
Comment dois je faire?

Code:

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if ((changedSnortRules) && (uiIDSView.comboBox_rulesSNORT->currentText()
			!= "local.rules")) {
		QDir appDir = QDir(qApp->applicationDirPath());
#if defined(Q_OS_WIN)
		if (appDir.dirName().toLower() == "debug" || appDir.dirName().toLower() == "release")
		appDir.cdUp();
#elif defined(Q_OS_MAC)
		if (appDir.dirName() == "MacOS") {
			appDir.cdUp();
			appDir.cdUp();
			appDir.cdUp();
		}
#endif
		QFile tempSnortRulesFile(appDir.path()
				+ "/temp/snortrules/snortruleschanges.txt");
		if (!tempSnortRulesFile.open(QIODevice::Append))
			return;
		QTextStream outchanges(&tempSnortRulesFile);
 
		applied = false;
 
		QString fileSnortRules;
		fileSnortRules = uiIDSView.comboBox_rulesSNORT->currentText();
 
		QList<QWidget *> widgets = console->ui.centralwidget->findChildren<
				QWidget *> ("tableWidget_RulesIDS");
		for (int k = 0; k < widgets.size(); k++) {
			if (widgets.value(k)->isVisible() == true) {
				QTableWidget * tableSnortRules = qobject_cast<QTableWidget*> (
						widgets.value(k));
				for (int i = 0; i < tableSnortRules->rowCount(); i++) {
					QLineEdit * lineEditSID = qobject_cast<QLineEdit*> (
							tableSnortRules->cellWidget(i, 0));
					QString lineEditSIDstring = lineEditSID->text();
 
					QComboBox * comboBoxStatus = qobject_cast<QComboBox*> (
							tableSnortRules->cellWidget(i, 1));
					QString comboBoxStatusstring =
							comboBoxStatus->currentText();
 
					QComboBox * comboBoxAction = qobject_cast<QComboBox*> (
							tableSnortRules->cellWidget(i, 2));
					QString comboBoxActionstring =
							comboBoxAction->currentText();
 
					outchanges << fileSnortRules << " " << lineEditSIDstring
							<< " " << comboBoxStatusstring << " "
							<< comboBoxActionstring << endl;
				}
			}
		}
 
		changedSnortRules = false;
	}