QTableWidgetItem and edit float value > 2 decimal

[cfdev]

Hi everyone!
By default the display and edit mode is 2 decimal precision on tableWidget. I need to 3 decimal.

I use setData function of QTableWidgetItem like this:

// quantity is qreal
item_QUANTITY->setData(Qt::DisplayRole, m_ilist.quantity.at(i));

-> To show with 3 decimal, I use QStyledItemDelegate class and setItemDelegateForColumn of tableWidget. It's ok!

But how to edit with 3 decimal on tableWidget ?

[skebanga]

You'll need to override QStyledItemDelegate::createEditor and return a QDoubleSpinBox where you've called setDecimals(3);

Something along these lines:

class ItemDelegate : public QStyledItemDelegate
{
    QWidget* ItemDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& style, const QModelIndex& index) const
    {
        QDoubleSpinBox* box = new QDoubleSpinBox(parent);

        box->setDecimals(3);

        // you can also set these
        box->setSingleStep(0.01);
        box->setMinimum(0);
        box->setMaximum(1000);

        return box;
    }
};

[cfdev]

@skebanga Many thx!