Method HandleGET_stdmultiWindow

Modules/RESTAPI/src/mitkRenderingController.cpp:1101–1161

}

void RenderingController::HandleGET_stdmultiWindow(const httplib::Request& req, httplib::Response& res) const
{
  const auto id = ReadRequiredPathParam(req, "id");

  if (!IsValidStdMultiWindowId(id))
  {
    const auto error = ErrorResponse::RenderWindowNotFound(id, req.path);
    this->SendErrorResponse(res, 404, error);
    return;
  }

  // Compose summary locally; the bridge already exposes enough state via the
  // windows-list provider, and no per-window "summary" callback is needed.
  if (m_RenderWindowBridge == nullptr || !m_RenderWindowBridge->HasStdMultiWindowListProvider())
  {
    const auto error = ErrorResponse::RenderWindowNotAvailable(req.path);
    this->SendErrorResponse(res, 503, error);
    return;
  }

  std::vector<WindowInfo> windows;
  try
  {
    windows = m_RenderWindowBridge->ListStdMultiWindows();
  }
  catch (const std::exception& e)
  {
    const auto [status, payload] = MapBridgeException(e, req.path);
    this->SendErrorResponse(res, status, payload);
    return;
  }

  // The controller-side id validation already accepts only canonical ids,
  // so an empty window list at this point means the editor reports no windows
  // -- that is an editor state we also surface as RENDER_WINDOW_NOT_FOUND.
  // TODO(v3): replace the O(n) scan with a per-window descriptor query once
  // the bridge surface exposes a GetStdMultiWindowDescriptor(id) callback.
  // Tracked alongside the v3 migration checklist in
  // QmitkRestApiBridgeBindings.cpp; acceptable at v1.2 scale (<=4 slots).
  const auto matched = std::find_if(windows.begin(), windows.end(),
    [&](const WindowInfo& w) { return w.id == id; });
  if (matched == windows.end())
  {
    const auto error = ErrorResponse::RenderWindowNotFound(id, req.path);
    this->SendErrorResponse(res, 404, error);
    return;
  }

  const bool is3d = IsStdMulti3dWindow(id);

  nlohmann::json j;
  j["id"] = id;
  j["kind"] = is3d ? "3d" : "2d";
  if (matched->viewDirection.has_value())
    j["view_direction"] = AnatomicalPlaneToV2String(*matched->viewDirection);
  j["has_camera"] = true;
  j["has_selected_slice"] = !is3d;