#ifndef __CPM__IO__MESHREADER__HXX__
#define __CPM__IO__MESHREADER__HXX__

#include <algorithm>
#include <cpm/IO/WaveFrontOBJReader.h>
#include <itkVTKPolyDataReader.h>

// -------------------------------------------------------------------------
template< typename M >
itk::ModifiedTimeType cpm::IO::MeshReader< M >::
GetMTime( ) const
{
  itk::ModifiedTimeType mtime = this->Superclass::GetMTime( );
  if( this->m_Reader.IsNotNull( ) )
  {
    itk::ModifiedTimeType rtime = this->m_Reader->GetMTime( );
    mtime = ( rtime < mtime )? rtime: mtime;

  } // fi
  return( mtime );
}

// -------------------------------------------------------------------------
template< typename M >
cpm::IO::MeshReader< M >::
MeshReader( )
  : Superclass( )
{
}

// -------------------------------------------------------------------------
template< typename M >
cpm::IO::MeshReader< M >::
~MeshReader( )
{
}

// -------------------------------------------------------------------------
template< typename M >
void cpm::IO::MeshReader< M >::
GenerateData( )
{
  std::string fn = this->m_FileName;
  std::transform( fn.begin( ), fn.end( ), fn.begin( ), ::tolower );
  if( fn.rfind( ".vtk" ) != std::string::npos )
    this->_Read< itk::VTKPolyDataReader< M > >( );
  else if( fn.rfind( ".obj" ) != std::string::npos )
    this->_Read< cpm::IO::WaveFrontOBJReader< M > >( );
}

// -------------------------------------------------------------------------
template< typename M >
template< class R >
void cpm::IO::MeshReader< M >::
_Read( )
{
  typename R::Pointer reader = NULL;
  if( this->m_Reader.IsNotNull( ) )
  {
    reader = dynamic_cast< R* >( this->m_Reader.GetPointer( ) );
    if( reader.IsNotNull( ) )
    {
      if( reader->GetFileName( ) == this->m_FileName )
        reader = NULL;
    }
    else
    {
      reader = R::New( );
      this->m_Reader = reader;

    } // fi
  }
  else
  {
    reader = R::New( );
    this->m_Reader = reader;

  } // fi

  if( reader.IsNotNull( ) )
  {
    reader->SetFileName( this->m_FileName );
    reader->GraftOutput( this->GetOutput( ) );
    reader->Update( );
    this->GraftOutput( reader->GetOutput( ) );

  } // fi
}

#endif // __CPM__IO__MESHREADER__HXX__

// eof - $RCSfile$