Method setData

Examples/GUI/Qt/CellGridSource/ArrayGroupModel.cxx:133–171

}

bool ArrayGroupModel::setData(const QModelIndex& index, const QVariant& value, int role)
{
  if (role != Qt::EditRole)
  {
    return false;
  }
  if (index.row() < 0 || index.column() < 0 || index.row() >= this->rowCount(index.parent()) ||
    index.column() >= this->columnCount(index.parent()))
  {
    return false;
  }
  // TODO: Record edit to a journal of edits, then update the output cell-grid.
  auto& colData(this->ColumnToArrayComponent[index.column()]);
  auto* array = colData.Array;
  if (auto* dataArray = vtkDataArray::SafeDownCast(array))
  {
    if (value.isNull() || value.toString().isEmpty())
    {
      return false;
    }
    std::vector<double> tuple;
    tuple.resize(dataArray->GetNumberOfComponents());
    dataArray->GetTuple(index.row(), tuple.data());
    tuple[colData.Component] = value.toDouble();
    dataArray->SetTuple(index.row(), tuple.data());
    this->Data->Modified();
    Q_EMIT dataChanged(index, index);
    return true;
  }
  else if (auto* stringArray = vtkStringArray::SafeDownCast(array))
  {
    stringArray->SetValue(stringArray->GetNumberOfComponents() * index.row() + colData.Component,
      value.toString().toStdString());
    this->Data->Modified();
    Q_EMIT dataChanged(index, index);
    return true;
  }
  return false;
}

Qt::ItemFlags ArrayGroupModel::flags(const QModelIndex& index) const
{