QAbstractProxyModel for 'Group By' -- works but arrow keys don't !?

[liversedge]

I should have mentioned that the arrow keys don't move up and down in a QTreeView when this proxymodel is between the view and the source sqltable.

Cheers,
Mark

[liversedge]

Fixed it ha!

Because I have a virtual column in column zero, but mapToSource returns an invalid QModelIndex for column zero (because it doesn't exist in the source) then the flags for column zero are empty -- and makes it non-selectable.

If I provide my own version of ::flags() and make it selectable the arrow keys spring into life. yay!

here is the bit of code I needed to add, I make the groupby's unselectable since they are just 'headings' not data (if that makes any sense).

Qt::ItemFlags flags ( const QModelIndex & index ) const {
        if (index.internalPointer() == NULL) {
            return Qt::ItemIsEnabled;
        } else {
            return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
        }   
    }

Qt::ItemFlags flags ( const QModelIndex & index ) const {
        if (index.internalPointer() == NULL) {
            return Qt::ItemIsEnabled;
        } else {
            return Qt::ItemIsSelectable | Qt::ItemIsEnabled;
        }   
    }

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