Method FillTreeImpl

qt/update_dialog.cpp:379–432

}

void UpdateDialog::FillTreeImpl(QTreeWidgetItem * parent, CountryId const & countryId, optional<Filter> const & filter)
{
  CountriesVec children;
  GetStorage().GetChildren(countryId, children);

  size_t posInRanking = kInvalidPos;
  string matchedBy;
  if (filter)
  {
    auto const it = filter->find(countryId);
    if (it != filter->end())
    {
      posInRanking = it->second.first;
      matchedBy = it->second.second;
    }
  }
  else
  {
    posInRanking = kIrrelevantPos;
  }

  if (children.empty())
  {
    if (filter && posInRanking == kInvalidPos)
      return;

    QTreeWidgetItem * item = CreateTreeItem(countryId, posInRanking, matchedBy, parent);
    UpdateRowWithCountryInfo(item, countryId);
    return;
  }

  QTreeWidgetItem * item = CreateTreeItem(countryId, posInRanking, matchedBy, parent);
  UpdateRowWithCountryInfo(item, countryId);

  if (filter && posInRanking != kInvalidPos)
  {
    // Filter matches to the group name, do not filter the group.
    for (auto const & child : children)
      FillTreeImpl(item, child, {} /* filter */);

    return;
  }

  // Filter does not match to the group, but children can.
  for (auto const & child : children)
    FillTreeImpl(item, child, filter);

  // Drop the item if it has no children.
  if (filter && item->childCount() == 0 && parent != nullptr)
  {
    parent->removeChild(item);
    item = nullptr;
  }
}

/// Changes row's text color
void SetRowColor(QTreeWidgetItem & item, QColor const & color)