#include <cpPlugins/Interface/ProcessObject.h>

#ifdef cpPlugins_Interface_QT4
#include <QApplication>
#include <cpPlugins/Interface/ParametersQtDialog.h>
#include <cpPlugins/Interface/SimpleMPRWidget.h>
#endif // cpPlugins_Interface_QT4

#include <vtkRenderWindowInteractor.h>

// -------------------------------------------------------------------------
std::set< std::string > cpPlugins::Interface::ProcessObject::
GetInputsNames( ) const
{
  std::set< std::string > names;
  auto dIt = this->m_Inputs.begin( );
  for( ; dIt != this->m_Inputs.end( ); ++dIt )
    names.insert( dIt->first );
  return( names );
}

// -------------------------------------------------------------------------
std::set< std::string > cpPlugins::Interface::ProcessObject::
GetOutputsNames( ) const
{
  std::set< std::string > names;
  auto dIt = this->m_Outputs.begin( );
  for( ; dIt != this->m_Outputs.end( ); ++dIt )
    names.insert( dIt->first );
  return( names );
}

// -------------------------------------------------------------------------
unsigned int cpPlugins::Interface::ProcessObject::
GetNumberOfInputs( ) const
{
  return( this->m_Inputs.size( ) );
}

// -------------------------------------------------------------------------
unsigned int cpPlugins::Interface::ProcessObject::
GetNumberOfOutputs( ) const
{
  return( this->m_Outputs.size( ) );
}

// -------------------------------------------------------------------------
bool cpPlugins::Interface::ProcessObject::
SetInput( const std::string& id, cpPlugins::Interface::DataObject* dobj )
{
  _TDataContainer::iterator i = this->m_Inputs.find( id );
  if( i != this->m_Inputs.end( ) )
  {
    i->second = dobj;
    this->Modified( );
    return( true );
  }
  else
    return( false );
}

// -------------------------------------------------------------------------
std::string cpPlugins::Interface::ProcessObject::
Update( )
{
  std::string r = "";

  // Force upstream updates
  _TDataContainer::iterator i = this->m_Inputs.begin( );
  for( ; i != this->m_Inputs.end( ) && r == ""; ++i )
  {
    if( i->second.IsNotNull( ) )
    {
      Self* src = dynamic_cast< Self* >( i->second->GetSource( ) );
      if( src != NULL )
        r = src->Update( );
    }
    else
      r = "cpPlugins::Interface::ProcessObject: No input connected.";
    
  } // rof

  // Current update
  if( r == "" )
    r = this->_GenerateData( );

  // Return error description, if any
  return( r );
}

// -------------------------------------------------------------------------
void cpPlugins::Interface::ProcessObject::
DisconnectOutputs( )
{
  _TDataContainer::iterator i = this->m_Outputs.begin( );
  for( ; i != this->m_Outputs.end( ); ++i )
    if( i->second.IsNotNull( ) )
      i->second->DisconnectPipeline( );
}

// -------------------------------------------------------------------------
vtkRenderWindowInteractor* cpPlugins::Interface::ProcessObject::
GetSingleInteractor( )
{
  return( this->m_SingleInteractor );
}

// -------------------------------------------------------------------------
const vtkRenderWindowInteractor* cpPlugins::Interface::ProcessObject::
GetSingleInteractor( ) const
{
  return( this->m_SingleInteractor );
}

// -------------------------------------------------------------------------
void cpPlugins::Interface::ProcessObject::
SetSingleInteractor( vtkRenderWindowInteractor* interactor )
{
  this->m_SingleInteractor = interactor;
}

// -------------------------------------------------------------------------
cpPlugins::Interface::
SimpleMPRWidget* cpPlugins::Interface::ProcessObject::
GetMPRViewer( )
{
  return( this->m_MPRViewer );
}

// -------------------------------------------------------------------------
const cpPlugins::Interface::
SimpleMPRWidget* cpPlugins::Interface::ProcessObject::
GetMPRViewer( ) const
{
  return( this->m_MPRViewer );
}

// -------------------------------------------------------------------------
void cpPlugins::Interface::ProcessObject::
SetMPRViewer( cpPlugins::Interface::SimpleMPRWidget* wdg )
{
  this->m_MPRViewer = wdg;
}

// -------------------------------------------------------------------------
bool cpPlugins::Interface::ProcessObject::
ExecConfigurationDialog( QWidget* parent )
{
  bool r = false;
#ifdef cpPlugins_Interface_QT4
  if( this->m_ParametersDialog != NULL )
  {
    this->m_ParametersDialog->setParent( NULL );
    this->m_ParametersDialog->setParameters( this->m_Parameters );
    r = ( this->m_ParametersDialog->exec( ) == 1 );
  }
  else
    r = false;
#endif // cpPlugins_Interface_QT4
  return( r );
}

// -------------------------------------------------------------------------
cpPlugins::Interface::ProcessObject::
ProcessObject( )
  : Superclass( ),
    m_ParametersDialog( NULL ),
    m_MPRViewer( NULL )
{
  this->m_Parameters = TParameters::New( );
  this->m_Parameters->SetProcessObject( this );

#ifdef cpPlugins_Interface_QT4
  if( QApplication::instance( ) != NULL )
    this->m_ParametersDialog = new ParametersQtDialog( );
#endif // cpPlugins_Interface_QT4
}

// -------------------------------------------------------------------------
cpPlugins::Interface::ProcessObject::
~ProcessObject( )
{
#ifdef cpPlugins_Interface_QT4
  if( this->m_ParametersDialog != NULL )
    delete this->m_ParametersDialog;
#endif // cpPlugins_Interface_QT4
}

// -------------------------------------------------------------------------
void cpPlugins::Interface::ProcessObject::
_AddInput( const std::string& name )
{
  this->m_Inputs[ name ] = NULL;
  this->Modified( );
}

// eof - $RCSfile$