Hide QStandardItemModel row in data member function

Asked Dec 16 '15 at 17:38

Active Dec 16 '15 at 17:38

Viewed 1,091 times

How can I hide / exclude entire rows from a QStandardItemModel without removing them physically from the model?

Rational: I want to not display entities which are shown in another view. I already have a working highlight logic for that in the data function. Could I turn it(easily) in a "not display logic", so such rows are skipped?

    QVariant CMyModel::data(const QModelIndex &index, int role) const
    {
        if (role != Qt::BackgroundRole) { return CModelBase::data(index, role); }
        .......

        if (model.hasSomeCondition())
        {
           static const QBrush b(Qt::green);
           return b;
        }
        return QVariant();
    }

asked Dec 16 '15 at 17:38

Horst Walter

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How about using a [proxy model](http://doc.qt.io/qt-5/qabstractproxymodel.html)? – peppe Dec 17 '15 at 00:00
using the proxy model to filter the original model? – Horst Walter Dec 17 '15 at 00:03
1

Yes, exactly. So you don't modify the original model with logic that doesn't "belong to it". – peppe Dec 17 '15 at 00:07
Can I add / remove the proxy model at any time (ie by user interaction) – Horst Walter Dec 17 '15 at 00:31
1

Yes. You just need to call `view->setModel()` to display proxy model or original model. Or you can just configure proxy model to not filter anything instead of removing it from the view. – Pavel Strakhov Dec 17 '15 at 13:04

Hide QStandardItemModel row in data member function

0 Answers0