set Tab Order in a QTableWidget

[jfe]

Hello, I have the following problem:

I have a QTableWidget with 3 rows and 4 columns. The first 3 columns of each row are fixed with written data, but the last column is always editable.
It looks kind of like this, when f is a fixed cell and the _ is an editable cell:

f f f _
f f f _
f f f _

What I want to happen is that once the user is in the first editable cell and clicks tab, it should jump to the next editable cell and so on.

I am using only QTableWidgetItems in the QTableWidget. This is why the function QWidget::setTabOrder( QWidget*, QWidget*) does not work, because a QTableWidgetItem is not derived from QWidget

Any ideas how else I could do that?

I am using Qt 4.2.2 on Windows

[jpn]

The easiest way might be to reimplement QAbstractItemView::focusNextPrevChild():

bool MyTableWidget::focusNextPrevChild(bool next)
{
    // check if current column is the editable column
    int currentColumn = currentItem() ? currentItem->column() : -1;
    if (tabKeyNavigation() && currentColumn == 3)
    {
        // Qt::Key_Down instead of Qt::Key_Tab and Qt::Key_Up instead of Qt::Key_Backtab
        QKeyEvent event(QEvent::KeyPress, next ? Qt::Key_Down : Qt::Key_Up, Qt::NoModifier);
        keyPressEvent(&event);
        if (event.isAccepted())
            return true;
    }
    return QTableWidget::focusNextPrevChild(next);
}

bool MyTableWidget::focusNextPrevChild(bool next)
{
    // check if current column is the editable column
    int currentColumn = currentItem() ? currentItem->column() : -1;
    if (tabKeyNavigation() && currentColumn == 3)
    {
        // Qt::Key_Down instead of Qt::Key_Tab and Qt::Key_Up instead of Qt::Key_Backtab
        QKeyEvent event(QEvent::KeyPress, next ? Qt::Key_Down : Qt::Key_Up, Qt::NoModifier);
        keyPressEvent(&event);
        if (event.isAccepted())
            return true;
    }
    return QTableWidget::focusNextPrevChild(next);
}

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