Method HandlePUT_mxnSelectedSlice

Modules/RESTAPI/src/mitkRenderingController.cpp:2015–2085

}

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

  if (!IsValidMxNWindowId(id))
  {
    const auto error = ErrorResponse::InvalidRequest(
      "Malformed MxN window id '" + id + "'. Expected pattern: <prefix>__<bare> with URL-segment-safe characters.",
      req.path);
    this->SendErrorResponse(res, 400, error);
    return;
  }

  if (req.body.empty())
  {
    const auto error = ErrorResponse::InvalidRequest("Request body is required.", req.path);
    this->SendErrorResponse(res, 400, error);
    return;
  }

  nlohmann::json body;
  try
  {
    body = nlohmann::json::parse(req.body);
  }
  catch (const nlohmann::json::exception&)
  {
    const auto error = ErrorResponse::InvalidRequest("Invalid JSON body.", req.path);
    this->SendErrorResponse(res, 400, error);
    return;
  }

  // MxN slice PUT is step-only. World-anchor moves on a single cell live at
  // the per-cell selected-position resource; global anchor moves at
  // /rendering/selected-position.
  unsigned int step = 0;
  if (const auto err = ParseSliceStepBody(body,
        "MxN selected-slice",
        "Use PUT /rendering/editors/mxn/windows/{id}/selected-position for a per-cell "
        "world anchor, or PUT /rendering/selected-position for the global anchor.",
        step))
  {
    const auto error = ErrorResponse::InvalidRequest(*err, req.path);
    this->SendErrorResponse(res, 400, error);
    return;
  }

  if (m_RenderWindowBridge == nullptr || !m_RenderWindowBridge->HasMxNSelectedSliceStepSetter())
  {
    const auto error = ErrorResponse::RenderWindowNotAvailable(req.path);
    this->SendErrorResponse(res, 503, error);
    return;
  }

  try
  {
    m_RenderWindowBridge->SetMxNSelectedSliceStep(id, step);
    res.status = 204;