Get previous value of QComboBox, which is in a QTableWidget, when the value is changed

Question

Say I have a QTableWidget and in each row there is a QComboBox and a QSpinBox. Consider that I store their values is a QMap

Answer 1

I was just having a similar issue, but for me i needed the previous index for something very trivial so defining and implementing a whole class for it was unjustified.

So what I did instead was keep an argument called say 'previousIndex' and updated it's value only after I had done everything I needed with it