Method duplicateCurrentGroup

app/src/DataModel/ProjectModel.cpp:3524–3559

* @brief Appends a copy of the currently selected group to the project. */

 * @brief Appends a copy of the currently selected group to the project.
 */
void DataModel::ProjectModel::duplicateCurrentGroup()
{
  DataModel::Group group = m_selectedGroup;
  group.groupId          = m_groups.size();
  group.uniqueId         = allocateUniqueId();
  group.datasets.clear();
  group.outputWidgets.clear();

  QStringList existingTitles;
  existingTitles.reserve(static_cast<int>(m_groups.size()));
  for (const auto& g : m_groups)
    existingTitles.append(g.title);

  group.title = nextDuplicateTitle(m_selectedGroup.title, existingTitles);

  for (size_t i = 0; i < m_selectedGroup.datasets.size(); ++i) {
    auto dataset     = m_selectedGroup.datasets[i];
    dataset.groupId  = group.groupId;
    dataset.index    = nextDatasetIndex() + static_cast<int>(i);
    dataset.uniqueId = allocateUniqueId();
    group.datasets.push_back(dataset);
  }

  for (const auto& ow : m_selectedGroup.outputWidgets) {
    auto copy    = ow;
    copy.groupId = group.groupId;
    group.outputWidgets.push_back(copy);
  }

  m_groups.push_back(group);
  m_selectedGroup = m_groups.back();

  Q_EMIT groupsChanged();
  Q_EMIT groupAdded(static_cast<int>(m_groups.size()) - 1);
  setModified(true);
}

/**
 * @brief Appends a copy of the currently selected action to the project.