Method cleanupWorkspaceWidgetRefs

app/src/DataModel/ProjectModel.cpp:5920–5954

* @brief Drops every workspace widget ref whose encoded key isn't in validKeys. */

 * @brief Drops every workspace widget ref whose encoded key isn't in validKeys.
 */
int DataModel::ProjectModel::cleanupWorkspaceWidgetRefs(const QSet<qint64>& validKeys)
{
  if (AppState::instance().operationMode() != SerialStudio::ProjectFile)
    return 0;

  const auto encode = [](int widgetType, int groupId, int relIdx) {
    return (static_cast<qint64>(widgetType) << 40) | (static_cast<qint64>(groupId) << 20)
         | static_cast<qint64>(relIdx);
  };

  int removed = 0;
  for (auto& ws : m_workspaces) {
    auto& refs    = ws.widgetRefs;
    const auto it = std::remove_if(refs.begin(), refs.end(), [&](const auto& r) {
      return !validKeys.contains(encode(r.widgetType, r.groupUniqueId, r.relativeIndex));
    });

    const auto count = std::distance(it, refs.end());
    if (count > 0) {
      refs.erase(it, refs.end());
      removed += static_cast<int>(count);
    }
  }

  if (removed == 0)
    return 0;

  if (!m_customizeWorkspaces)
    setCustomizeWorkspaces(true);

  setModified(true);
  Q_EMIT editorWorkspacesChanged();
  Q_EMIT activeWorkspacesChanged();
  return removed;
}

/**
 * @brief Returns the title of a workspace, or empty if not found.