Method moveDataset

app/src/DataModel/ProjectModel.cpp:3792–3826

* @brief Moves a dataset within its group, renumbering datasetIds and re-resolving * workspace refs in customise mode. */

 *        workspace refs in customise mode.
 */
void DataModel::ProjectModel::moveDataset(int groupId, int fromDatasetId, int toDatasetId)
{
  if (groupId < 0 || static_cast<size_t>(groupId) >= m_groups.size())
    return;

  auto& datasets = m_groups[groupId].datasets;
  const int n    = static_cast<int>(datasets.size());
  if (fromDatasetId < 0 || fromDatasetId >= n)
    return;

  const int target = std::clamp(toDatasetId, 0, n - 1);
  if (target == fromDatasetId)
    return;

  std::vector<std::vector<detail::RefAnchor>> anchors;
  if (m_customizeWorkspaces)
    anchors = snapshotAllRefs(m_workspaces, m_groups);

  auto dataset = datasets[fromDatasetId];
  datasets.erase(datasets.begin() + fromDatasetId);
  datasets.insert(datasets.begin() + target, dataset);

  for (size_t i = 0; i < datasets.size(); ++i)
    datasets[i].datasetId = static_cast<int>(i);

  if (m_customizeWorkspaces)
    for (size_t w = 0; w < m_workspaces.size(); ++w)
      resolveOneWorkspaceRefs(m_workspaces[w], anchors[w], m_groups);

  if (m_selectedDataset.groupId == groupId && m_selectedDataset.datasetId == fromDatasetId)
    m_selectedDataset = datasets[target];

  Q_EMIT groupsChanged();
  setModified(true);
}

/**
 * @brief Moves a workspace to the given index in the editor list.