Method data

Examples/GUI/Qt/CellGridSource/ArrayGroupModel.cxx:104–131

}

QVariant ArrayGroupModel::data(const QModelIndex& index, int role) const
{
  if (role != Qt::DisplayRole)
  {
    return QVariant();
  }
  if (index.row() < 0 || index.column() < 0 || index.row() >= this->rowCount(index.parent()) ||
    index.column() >= this->columnCount(index.parent()))
  {
    return QVariant();
  }
  auto& colData(this->ColumnToArrayComponent[index.column()]);
  auto* array = colData.Array;
  if (auto* dataArray = vtkDataArray::SafeDownCast(array))
  {
    std::vector<double> tuple;
    tuple.resize(dataArray->GetNumberOfComponents());
    dataArray->GetTuple(index.row(), tuple.data());
    return tuple[colData.Component];
  }
  else if (auto* stringArray = vtkStringArray::SafeDownCast(array))
  {
    std::string value =
      stringArray->GetValue(stringArray->GetNumberOfComponents() * index.row() + colData.Component);
    return QString::fromStdString(value);
  }
  return QVariant();
}

bool ArrayGroupModel::setData(const QModelIndex& index, const QVariant& value, int role)
{