#include <cpExtensions/Config.h>

#ifdef cpExtensions_QT4

#include <cpExtensions/QT/SimpleMPRWidget.h>
#include <cpExtensions/QT/ImageWidget.h>
#include <cpPlugins/Interface/Workspace.h>

#include <QApplication>
#include <QWidget>
#include <QMainWindow>
#include <QHBoxLayout>

#include <vtkImageData.h>

#endif // cpExtensions_QT4

//----------------------------------------------------------------------------
int main( int argc, char* argv[] )
{
#ifdef cpExtensions_QT4
  typedef cpPlugins::Interface::Plugins   _TPlugins;
  typedef cpPlugins::Interface::Workspace _TWorkspace;

  // Manage inputs
  if( argc < 2 )
  {
    std::cerr << "Usage: " << argv[ 0 ] << " image_file(s)" << std::endl;
    return( 1 );

  } // fi

  // Create interface
  _TPlugins::Pointer plugins = _TPlugins::New( );
  try
  {
    plugins->LoadEnvironments( );
    plugins->GuessPlugins( );
  }
  catch( std::exception& err )
  {
    std::cerr << "Error caught: " << err.what( ) << std::endl;
    return( 1 );

  } // yrt

  // Create workspace
  _TWorkspace::Pointer ws = _TWorkspace::New( );
  ws->PrintExecutionOn( );

  // Configure reader
  auto reader = ws->CreateFilter( "IO", "ImageReader", "reader" );
  auto params = reader->GetParameters( );
  for( int i = 1; i < argc; ++i )
    params->AddToOpenFileNameList( "FileNames",  argv[ i ] );

  // Execute reader
  try
  {
    reader->Update( );
  }
  catch( std::exception& err )
  {
    std::cerr << "Error caugth: " << err.what( ) << std::endl;
    return( 1 );

  } // yrt

  // Configure viewer
  auto image = reader->GetOutputData< vtkImageData >( "Output" );
  auto dim = image->GetDataDimension( );
  switch( dim )
  {
  case 2: case 3:
  {
    // Qt initialization
    QApplication app( argc, argv );
    QMainWindow wnd;
    wnd.setGeometry( 0, 0, 1024, 768 );

    // Create main widget
    QWidget* wdg = NULL;
    if( dim == 2 )
    {
      auto view = new cpExtensions::QT::ImageWidget( &wnd );
      view->SetImage( image, 2, "image" );
      wdg = view;
    }
    else
    {
      auto view = new cpExtensions::QT::SimpleMPRWidget( &wnd );
      view->SetImage( image, "image" );
      wdg = view;

    } // fi

    // Start application and show data
    wnd.setCentralWidget( wdg );
    wnd.show( );
    return( app.exec( ) );
  }
  break;
  default:
  {
    std::cerr << "Unmanaged dimension." << std::endl;
    return( 1 );
  }
  break;

  } // hctiws
#else // cpExtensions_QT4
  return( 0 );
#endif // cpExtensions_QT4
}

// eof - $RCSfile$