text: /*=========================================================================
   *
   *  Copyright Insight Software Consortium
   *
   *  Licensed under the Apache License, Version 2.0 (the "License");
   *  you may not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *         http://www.apache.org/licenses/LICENSE-2.0.txt
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   *
   *=========================================================================*/
  #ifndef itkSpatialObjectReader_h
  #define itkSpatialObjectReader_h
  
  #include "itkMetaSceneConverter.h"
  #include "itkMetaConverterBase.h"
  #include "itkGroupSpatialObject.h"
  #include "itkProcessObject.h"
  
  namespace itk
  {
  /** \class SpatialObjectReader
   *
   * \brief TODO
   * \ingroup ITKIOSpatialObjects
   */
  template< unsigned int NDimensions = 3,
            typename PixelType = unsigned char,
            typename TMeshTraits = DefaultStaticMeshTraits< PixelType, NDimensions, NDimensions >
            >
  class ITK_TEMPLATE_EXPORT SpatialObjectReader:public Object
  {
  public:
    ITK_DISALLOW_COPY_AND_ASSIGN(SpatialObjectReader);
  
    /** SmartPointer type alias support */
    using Self = SpatialObjectReader;
    using Pointer = SmartPointer< Self >;
    using SpatialObjectType = SpatialObject< NDimensions >;
    using SpatialObjectPointer = typename SpatialObjectType::Pointer;
  
    using GroupType = GroupSpatialObject< NDimensions >;
    using GroupPointer = typename GroupType::Pointer;
  
    /** base type for MetaConverters -- bidirections conversion btw
     *  SpatialObject & MetaObject
     */
    using MetaConverterBaseType = MetaConverterBase< NDimensions >;
    using MetaSceneConverterType
      = MetaSceneConverter< NDimensions, PixelType, TMeshTraits >;
  
    /** Method for creation through the object factory */
    itkNewMacro(Self);
  
    /** Run-time type information (and related methods). */
    using Superclass = Object;
    itkTypeMacro(SpatialObjectReader, Object);
  
    /** Load a scene file. */
    void Update();
  
    /** Set the filename  */
    itkSetStringMacro(FileName);
  
    /** Get the filename */
    itkGetStringMacro(FileName);
  
    /** Get the output */
    GroupPointer GetGroup() { return m_Group; }
  
    /** Set/GetEvent */
    const MetaEvent * GetEvent()
    { return m_MetaToSpatialConverter->GetEvent(); }
  
    void SetEvent(MetaEvent *event)
    { m_MetaToSpatialConverter->SetEvent(event); }
  
    /** Add a converter for a new MetaObject/SpatialObject type */
    void RegisterMetaConverter(const char *metaTypeName,
                               const char *spatialObjectTypeName,
                               MetaConverterBaseType *converter);
  
  protected:
    std::string m_FileName;
  
    SpatialObjectReader();
    ~SpatialObjectReader() override = default;
  
  private:
  
    GroupPointer m_Group;
  
    typename MetaSceneConverterType::Pointer m_MetaToSpatialConverter;
  };
  } // namespace itk
  
  #ifndef ITK_MANUAL_INSTANTIATION
  #include "itkSpatialObjectReader.hxx"
  #endif
  
  #endif // itkSpatialObjectReader_h
  