#include <iostream>

#include <cpExtensions/Visualization/ImageSliceActors.h>
#include <cpPlugins/Interface.h>

#include <vtkImageData.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>

int main( int argc, char* argv[] )
{
  if( argc < 2 )
  {
    std::cerr
      << "Usage: " << argv[ 0 ]
      << " input_image(s)" << std::endl;
    return( 1 );

  } // fi

  // Load interface
  cpPlugins::Interface interface;
  interface.GuessAccesiblePlugins( );

  // Create filters
  cpPlugins::ProcessObject::Pointer reader;
  try
  {
    reader = interface.Create( "IO", "ImageReader" );
    if( reader.IsNull( ) )
    {
      std::cerr
        << "\"IO::ImageReader\" creation failed."
        << std::endl;
      return( 1 );
      
    } // fi

    // Configure filters
    auto reader_params = reader->GetParameters( );
    for( int i = 1; i < argc; ++i )
      reader_params->AddToOpenFileNameList( "FileNames", argv[ i ] );
    reader->Update( );
  }
  catch( itk::ExceptionObject& err1 )
  {
    std::cerr << "Error: " << err1.GetDescription( ) << std::endl;
    return( 1 );
  }
  catch( std::exception& err2 )
  {
    std::cerr << "Error: " << err2.what( ) << std::endl;
    return( 1 );

  } // yrt

  // Prepate slice objects
  vtkSmartPointer< cpExtensions::Visualization::ImageSliceActors > actors =
    vtkSmartPointer< cpExtensions::Visualization::ImageSliceActors >::New( );
  actors->SetInputData( reader->GetOutputData< vtkImageData >( "Output" ), 2 );

  // Prepare scene
  vtkSmartPointer< vtkRenderer > ren =
    vtkSmartPointer< vtkRenderer >::New( );
  ren->SetBackground( 0, 0, 0 );
  actors->PushInto( ren );

  vtkSmartPointer< vtkRenderWindow > win =
    vtkSmartPointer< vtkRenderWindow >::New( );
  win->AddRenderer( ren );
  win->SetSize( 500, 500 );

  vtkSmartPointer< vtkRenderWindowInteractor > iren =
    vtkSmartPointer< vtkRenderWindowInteractor >::New( );
  iren->SetRenderWindow( win );
  iren->SetInteractorStyle( actors->GetStyle( ) );

  iren->Initialize( );
  ren->Render( );
  ren->ResetCamera( );
  iren->Start( );

  // Ok finish
  return( 0 );
}

// eof - $RCSfile$