mitkLevelWindowPropertySerializer.cpp

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

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

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

#ifndef mitkLevelWindowPropertySerializer_h_included
#define mitkLevelWindowPropertySerializer_h_included

#include "mitkBasePropertySerializer.h"
#include "mitkLevelWindowProperty.h"
#include <boost/lexical_cast.hpp>
#include <mitkLocaleSwitch.h>

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

      virtual TiXmlElement *Serialize() override
    {
      if (const LevelWindowProperty *prop = dynamic_cast<const LevelWindowProperty *>(m_Property.GetPointer()))
      {
        LocaleSwitch localeSwitch("C");

        auto element = new TiXmlElement("LevelWindow");

        LevelWindow lw = prop->GetLevelWindow();
        std::string boolString("false");
        if (lw.IsFixed() == true)
          boolString = "true";
        element->SetAttribute("fixed", boolString.c_str());

        std::string boolStringFltImage("false");
        if (lw.IsFloatingValues() == true)
          boolStringFltImage = "true";
        element->SetAttribute("isFloatingImage", boolStringFltImage.c_str());

        auto child = new TiXmlElement("CurrentSettings");
        element->LinkEndChild(child);
        child->SetAttribute("level", boost::lexical_cast<std::string>(lw.GetLevel()));
        child->SetAttribute("window", boost::lexical_cast<std::string>(lw.GetWindow()));

        child = new TiXmlElement("DefaultSettings");
        element->LinkEndChild(child);
        child->SetAttribute("level", boost::lexical_cast<std::string>(lw.GetDefaultLevel()));
        child->SetAttribute("window", boost::lexical_cast<std::string>(lw.GetDefaultWindow()));

        child = new TiXmlElement("CurrentRange");
        element->LinkEndChild(child);
        child->SetAttribute("min", boost::lexical_cast<std::string>(lw.GetRangeMin()));
        child->SetAttribute("max", boost::lexical_cast<std::string>(lw.GetRangeMax()));

        return element;
      }
      else
        return nullptr;
    }

    virtual BaseProperty::Pointer Deserialize(TiXmlElement *element) override
    {
      if (!element)
        return nullptr;

      LocaleSwitch localeSwitch("C");

      bool isFixed(false);
      if (element->Attribute("fixed"))
        isFixed = std::string(element->Attribute("fixed")) == "true";
      bool isFloatingImage(false);
      if (element->Attribute("isFloatingImage"))
        isFloatingImage = std::string(element->Attribute("isFloatingImage")) == "true";

      std::string level_string;
      std::string window_string;
      TiXmlElement *child = element->FirstChildElement("CurrentSettings");
      if (child->QueryStringAttribute("level", &level_string) != TIXML_SUCCESS)
        return nullptr;
      if (child->QueryStringAttribute("window", &window_string) != TIXML_SUCCESS)
        return nullptr;

      std::string defaultLevel_string;
      std::string defaultWindow_string;
      child = element->FirstChildElement("DefaultSettings");
      if (child->QueryStringAttribute("level", &defaultLevel_string) != TIXML_SUCCESS)
        return nullptr;
      if (child->QueryStringAttribute("window", &defaultWindow_string) != TIXML_SUCCESS)
        return nullptr;

      std::string minRange_string;
      std::string maxRange_string;
      child = element->FirstChildElement("CurrentRange");
      if (child->QueryStringAttribute("min", &minRange_string) != TIXML_SUCCESS)
        return nullptr;
      if (child->QueryStringAttribute("max", &maxRange_string) != TIXML_SUCCESS)
        return nullptr;

      LevelWindow lw;
      try
      {
        lw.SetRangeMinMax(boost::lexical_cast<double>(minRange_string), boost::lexical_cast<double>(maxRange_string));
        lw.SetDefaultLevelWindow(boost::lexical_cast<double>(defaultLevel_string),
                                 boost::lexical_cast<double>(defaultWindow_string));
        lw.SetLevelWindow(boost::lexical_cast<double>(level_string), boost::lexical_cast<double>(window_string));
        lw.SetFixed(isFixed);
        lw.SetFloatingValues(isFloatingImage);
      }
      catch (boost::bad_lexical_cast &e)
      {
        MITK_ERROR << "Could not parse string as number: " << e.what();
        return nullptr;
      }
      return LevelWindowProperty::New(lw).GetPointer();
    }

  protected:
    LevelWindowPropertySerializer() {}
    virtual ~LevelWindowPropertySerializer() {}
  };

} // namespace

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

#endif