Method initializeUsingJSON

Qt/Components/pqCameraKeyFrameWidget.cxx:207–273

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//-----------------------------------------------------------------------------
void pqCameraKeyFrameWidget::initializeUsingJSON(const Json::Value& json)
{
  std::vector<double> value;
  auto parseJSONVector = [&json, &value](const char* name, unsigned int size) -> bool
  {
    value.resize(size);
    for (unsigned int idx = 0; idx < size; idx++)
    {
      if (json[name][idx].isDouble())
      {
        value[idx] = json[name][idx].asDouble();
      }
      else
      {
        return false;
      }
    }
    return true;
  };

  if (json["viewUp"].size() == 3 && parseJSONVector("viewUp", 3))
  {
    this->Internal->setViewUp(value.data());
  }
  if (this->usePathBasedMode())
  {
    unsigned int size = json["positions"].size();
    if (size >= 3 && size % 3 == 0 && parseJSONVector("positions", size))
    {
      vtkSMPropertyHelper(this->Internal->PSplineProxy, "Points").Set(value.data(), size);
    }
    size = json["focalPoints"].size();
    if (size >= 3 && size % 3 == 0 && parseJSONVector("focalPoints", size))
    {
      vtkSMPropertyHelper(this->Internal->FSplineProxy, "Points").Set(value.data(), size);
    }
    if (json["positionPathClosed"].isInt())
    {
      vtkSMPropertyHelper(this->Internal->PSplineProxy, "Closed")
        .Set(json["positionPathClosed"].asInt());
    }
    if (json["focalPointPathClosed"].isInt())
    {
      vtkSMPropertyHelper(this->Internal->FSplineProxy, "Closed")
        .Set(json["focalPointPathClosed"].asInt());
    }
  }
  else
  {
    if (json["position"].size() == 3 && parseJSONVector("position", 3))
    {
      this->Internal->setPosition(value.data());
    }
    if (json["focalPoint"].size() == 3 && parseJSONVector("focalPoint", 3))
    {
      this->Internal->setFocalPoint(value.data());
    }
    if (json["viewAngle"].isDouble())