Method data

examples/Plotter/BigDataset/Model.cpp:60–70

}

QVariant Model::data(const QModelIndex &index, int role) const
{
    if (role != Qt::DisplayRole || index.parent().isValid() || index.column() > 1 || index.row() >= m_data.count()) {
        return QVariant();
    }
    if (index.column() == 0) {
        return index.row() * s_stepWidth;
    } else {
        return m_data.at(index.row());
    }
}

// slot
void Model::setFunction(Function f)