How to define previous and next items to edit with a qtreeview/qabstractitemview

[mathieuS]

Hi everybody

I created a tree model subclassing QAbstractItemModelwhich I render using a QTreeView.

When I edit an item and press the tab key, the editor jumps to the item in the next row, same column. I'd like the converse, I would like the editor to jump in the next column, same row.

All I found in Qt Assistant was this mysterious statement :

... the current index defines the next and previous items to edit, ...

in the documentation for QAbstractItemView::edit().
Though, I don't understand how a QModelIndex may hold other indexes than parent's and children's.

Thank you for lightning my candle,
Mathieu

[tbscope]

http://doc.qt.nokia.com/4.7/qabstrac...tml#moveCursor

[mathieuS]

Thank, it is working great.

Here is my code, if anyone needs an example. The cursor moves forwards/backwards in a row. If it reaches row end/beginning, it jumps to the next/previous row.

QModelIndex MyTreeView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
{
    if(cursorAction == QAbstractItemView::MoveNext)
    {
        QModelIndex index = currentIndex();
        if(index.column() != 2)
            return model()->index(index.row(), index.column()+1, index.parent());
 
        setCurrentIndex(model()->index(index.row(), 0, index.parent()));
    }
    else if(cursorAction == QAbstractItemView::MovePrevious)
    {
        QModelIndex index = currentIndex();
        if(index.column() != 0)
             return model()->index(index.row(), index.column()-1, index.parent());
 
         setCurrentIndex(model()->index(index.row(), 2, index.parent()));
    }
 
    return QTreeView::moveCursor(cursorAction, modifiers);
}

QModelIndex MyTreeView::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers)
{
    if(cursorAction == QAbstractItemView::MoveNext)
    {
        QModelIndex index = currentIndex();
        if(index.column() != 2)
            return model()->index(index.row(), index.column()+1, index.parent());

        setCurrentIndex(model()->index(index.row(), 0, index.parent()));
    }
    else if(cursorAction == QAbstractItemView::MovePrevious)
    {
        QModelIndex index = currentIndex();
        if(index.column() != 0)
             return model()->index(index.row(), index.column()-1, index.parent());

         setCurrentIndex(model()->index(index.row(), 2, index.parent()));
    }

    return QTreeView::moveCursor(cursorAction, modifiers);
}

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