Method setModelData

src/openms_gui/source/VISUAL/ParamEditor.cpp:229–347

    }

    void ParamEditorDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
    {
      // only set model data for first column (value column)
      if (index.column() != 1)
      {
        return;
      }
      QVariant present_value = index.data(Qt::DisplayRole);
      QVariant new_value;
      //extract new value
      if (qobject_cast<QComboBox *>(editor))       //Drop-down list for enums
      {
        new_value = QVariant(static_cast<QComboBox *>(editor)->currentText());
      }
      else if (qobject_cast<QLineEdit *>(editor))
      {
        QString dtype = index.sibling(index.row(), 2).data(Qt::DisplayRole).toString();
        if (dtype == "output file" || dtype == "input file")        // input/outut file
        {

          new_value = QVariant(static_cast<QLineEdit *>(editor)->text());
          fileName_ = "\0";
        }
        else if (static_cast<QLineEdit *>(editor)->text() == "" && ((dtype == "int") || (dtype == "float")))         //numeric
        {
          if (dtype == "int")
          {
            new_value = QVariant("0");
          }
          else if (dtype == "float")
          {
            new_value = QVariant("nan");
          }
        }
        else
        {
          new_value = QVariant(static_cast<QLineEdit *>(editor)->text());
        }
      }
      else if (qobject_cast<ListEditor*>(editor))
      {
        new_value = QString("[%1]").arg(ListUtils::concatenate(static_cast<ListEditor *>(editor)->getList(), ",\n").toQString());
      }
      else if (qobject_cast<ListFilterDialog*>(editor))
      {
        new_value = QString("[%1]").arg(static_cast<ListFilterDialog*>(editor)->getChosenItems().join(",\n"));
      }
      else
      {
        // some new editor ...
      }

      // check if it matches the restrictions or is empty
      if (new_value.toString() != "")
      {
        QString type = index.sibling(index.row(), 2).data(Qt::DisplayRole).toString();
        bool restrictions_met = true;
        String restrictions = index.sibling(index.row(), 2).data(Qt::UserRole).toString();