#include <cstdlib>
#include <iostream>
#include <string>

#include <cpPlugins/Interface/Interface.h>
#include <cpPlugins/Interface/ProcessObject.h>
#include <cpPlugins/Interface/Image.h>
#include <cpPlugins/Extensions/Visualization/MPRActors.h>

#include <vtkActor.h>
#include <vtkCallbackCommand.h>
#include <vtkProperty.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>

int main( int argc, char* argv[] )
{
  if( argc < 4 )
  {
    std::cerr
      << "Usage: " << argv[ 0 ]
      << " plugins_file"
      << " input_image"
      << " pixel_type" << std::endl;
    return( 1 );

  } // fi
  std::string plugins_file = argv[ 1 ];
  std::string input_image_file = argv[ 2 ];
  std::string pixel_type = argv[ 3 ];

  // Create interface
  typedef cpPlugins::Interface::Interface TInterface;
  typedef TInterface::TClasses            TClasses;

  TInterface plugins;
  plugins.Load( plugins_file );

  // Create objects
  typedef cpPlugins::Interface::ProcessObject TProcessObject;
  typedef cpPlugins::Interface::Parameters    TParameters;
  cpPlugins::Interface::ProcessObject::Pointer reader;

  reader = plugins.CreateProcessObject( "cpPlugins::Plugins::ImageReader" );
  if( reader.IsNull( ) )
  {
    std::cerr << "No suitable reader found in plugins." << std::endl;
    return( 1 );

  } // fi

  // Configure reader
  TParameters reader_params = reader->GetDefaultParameters( );
  reader_params.AddValueToStringList( "FileNames", input_image_file );
  reader_params.SetValueAsString( "PixelType", pixel_type );
  reader_params.SetValueAsUint( "ImageDimension", 3 );
  reader_params.SetValueAsUint( "IsColorImage", 0 );
  reader->SetParameters( reader_params );

  // Execute reader
  std::string msg = reader->Update( );

  if( msg != "" )
    std::cerr << "ERROR: " << msg << std::endl;

  // Visualization stuff
  vtkSmartPointer< vtkRenderWindow > window = 
    vtkSmartPointer< vtkRenderWindow >::New( );

  vtkSmartPointer< vtkRenderWindowInteractor > interactor = 
    vtkSmartPointer< vtkRenderWindowInteractor >::New( );
 
  interactor->SetRenderWindow( window );

  // Renderers
  vtkSmartPointer< vtkRenderer > xrenderer =
    vtkSmartPointer< vtkRenderer >::New( );
  vtkSmartPointer< vtkRenderer > yrenderer =
    vtkSmartPointer< vtkRenderer >::New( );
  vtkSmartPointer< vtkRenderer > zrenderer =
    vtkSmartPointer< vtkRenderer >::New( );
  vtkSmartPointer< vtkRenderer > wrenderer =
    vtkSmartPointer< vtkRenderer >::New( );
 
  xrenderer->SetBackground( 0.7, 0.5, 0.5 );
  yrenderer->SetBackground( 0.5, 0.7, 0.5 );
  zrenderer->SetBackground( 0.5, 0.5, 0.7 );
  wrenderer->SetBackground( 0.5, 0.5, 0.5 );

  xrenderer->SetViewport( 0, 0, 0.5, 0.5 );
  yrenderer->SetViewport( 0, 0.5, 0.5, 1 );
  zrenderer->SetViewport( 0.5, 0, 1, 0.5 );
  wrenderer->SetViewport( 0.5, 0.5, 1, 1 );

  window->AddRenderer( xrenderer );
  window->AddRenderer( yrenderer );
  window->AddRenderer( zrenderer );
  window->AddRenderer( wrenderer );

  // Create actors
  typedef cpPlugins::Extensions::Visualization::MPRActors TMPRActors;
  vtkSmartPointer< TMPRActors > mprActors =
    vtkSmartPointer< TMPRActors >::New( );
  mprActors->SetInputData(
    dynamic_cast< cpPlugins::Interface::Image* >( reader->GetOutput( 0 ) )->
    GetVTKImageData( )
    );
  mprActors->PushDataInto( xrenderer, yrenderer, zrenderer, wrenderer );

  // Begin interaction
  xrenderer->ResetCamera( );
  yrenderer->ResetCamera( );
  zrenderer->ResetCamera( );
  wrenderer->ResetCamera( );
  window->Render( );
  interactor->Start( );

  return( 0 );
}

// eof - $RCSfile$