QTableView: changing precision for double values

I haven't been able to find a good way to get to these spin boxes. The default delegate for QTableView

is QStyledItemDelegate . When you create an item in, Qt::EditRole

it uses items created by the standard QItemEditorFactory class , which you can access using QItemEditorFactory::defaultFactory()

. Then you could register your own editor, but I don't see a good way to edit the ones that already exist.

Instead, you should most likely implement your own delegate with some precision. There is an example to make a delegate using QSpinBox

which you replace with QDoubleSpinBox

. Then in createEditor

you then use setDecimals

to set the spin box to the precision you want. Then you apply this delegate to your table using setItemDelegate

.