Signal when end edit Item

[TomASS]

Hi all!

I'm a beginner in QT.
I've a QTableWidget (name: tmp_table), and i putting Items on it by:

QTableWidgetItem *newItem1 = new QTableWidgetItem(tr("%1").arg(query.value(1).toString()));
        tmp_table->setItem(row, col++, newItem1);

QTableWidgetItem *newItem1 = new QTableWidgetItem(tr("%1").arg(query.value(1).toString()));
        tmp_table->setItem(row, col++, newItem1);

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Items are editable (on click or press F2).

I would like to call ex. some_function() (ex. save value in the database) when user end editing a datan int to a QTableWidgetItem.
How can I do it?

Thaks a lot!