mitkAnnotationPropertySerializer.cpp

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/*============================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.

Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.

============================================================================*/

#ifndef mitkAnnotationPropertySerializer_h_included
#define mitkAnnotationPropertySerializer_h_included

#include "mitkBasePropertySerializer.h"

#include "mitkAnnotationProperty.h"
#include "mitkStringsToNumbers.h"

namespace mitk
{
  class AnnotationPropertySerializer : public BasePropertySerializer
  {
  public:
    mitkClassMacro(AnnotationPropertySerializer, BasePropertySerializer);
    itkFactorylessNewMacro(Self) itkCloneMacro(Self)

      TiXmlElement *Serialize() override
    {
      if (const AnnotationProperty *prop = dynamic_cast<const AnnotationProperty *>(m_Property.GetPointer()))
      {
        auto element = new TiXmlElement("annotation");
        element->SetAttribute("label", prop->GetLabel());
        Point3D point = prop->GetPosition();
        element->SetAttribute("x", boost::lexical_cast<std::string>(point[0]));
        element->SetAttribute("y", boost::lexical_cast<std::string>(point[1]));
        element->SetAttribute("z", boost::lexical_cast<std::string>(point[2]));
        return element;
      }
      else
        return nullptr;
    }

    BaseProperty::Pointer Deserialize(TiXmlElement *element) override
    {
      if (!element)
        return nullptr;
      const char *label(element->Attribute("label"));
      std::string p_string[3];
      if (element->QueryStringAttribute("x", &p_string[0]) != TIXML_SUCCESS)
        return nullptr;
      if (element->QueryStringAttribute("y", &p_string[1]) != TIXML_SUCCESS)
        return nullptr;
      if (element->QueryStringAttribute("z", &p_string[2]) != TIXML_SUCCESS)
        return nullptr;
      Point3D p;
      try
      {
        StringsToNumbers<double>(3, p_string, p);
      }
      catch (boost::bad_lexical_cast &e)
      {
        MITK_ERROR << "Could not parse string as number: " << e.what();
        return nullptr;
      }

      return AnnotationProperty::New(label, p).GetPointer();
    }

  protected:
    AnnotationPropertySerializer() {}
    ~AnnotationPropertySerializer() override {}
  };

} // namespace

// important to put this into the GLOBAL namespace (because it starts with 'namespace mitk')
MITK_REGISTER_SERIALIZER(AnnotationPropertySerializer);

#endif