#ifndef __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__
#define __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__

#include <set>

#include <cpPlugins/Interface/DataObject.h>
#include <cpPlugins/Interface/Parameters.h>

#include <itkProcessObject.h>
#include <vtkSmartPointer.h>
#include <vtkAlgorithm.h>

// Some forward declarations
class vtkRenderWindowInteractor;
#ifdef cpPlugins_Interface_QT4
class QWidget;
#else
typedef char QWidget;
#endif // cpPlugins_Interface_QT4

namespace cpPlugins
{
  namespace Interface
  {
    // Some forward declarations
    class Plugins;
#ifdef cpPlugins_Interface_QT4
    class ParametersQtDialog;
#else
    typedef char ParametersQtDialog;
#endif // cpPlugins_Interface_QT4

    /**
     */
    class cpPlugins_Interface_EXPORT ProcessObject
      : public Object
    {
    public:
      typedef ProcessObject                   Self;
      typedef Object                          Superclass;
      typedef itk::SmartPointer< Self >       Pointer;
      typedef itk::SmartPointer< const Self > ConstPointer;

      typedef Parameters TParameters;
      typedef std::set< vtkRenderWindowInteractor* > TInteractors;

      enum DialogResult
      {
        DialogResult_NoModal = 0,
        DialogResult_Modal,
        DialogResult_Cancel
      };

    public:
      itkTypeMacro( ProcessObject, Object );
      cpPlugins_Id_Macro( ProcessObject, "BaseObject" );

      itkBooleanMacro( Interactive );

      itkGetConstObjectMacro( Parameters, TParameters );
      itkGetObjectMacro( Parameters, TParameters );
      itkGetConstMacro( Plugins, const Plugins* );
      itkGetMacro( Plugins, Plugins* );
      itkGetConstMacro( Interactive, bool );

      itkSetObjectMacro( Plugins, Plugins );
      itkSetMacro( Interactive, bool );

    public:
      // To impact pipeline
      virtual void Modified( ) const;

      virtual void GetInputsNames( std::set< std::string >& names ) const;
      virtual void GetOutputsNames( std::set< std::string >& names ) const;

      virtual bool SetOutputObjectName(
        const std::string& new_object_name,
        const std::string& output_name
        );

      virtual void SetInput( const std::string& id, DataObject* dobj );

      virtual std::string Update( );
      virtual void DisconnectOutputs( );

      virtual void AddInteractor( vtkRenderWindowInteractor* interactor );
      virtual DialogResult ExecConfigurationDialog( QWidget* parent );

      template< class T >
        inline T* GetITK( );

      template< class T >
        inline const T* GetITK( ) const;

      template< class T >
        inline T* GetVTK( );

      template< class T >
        inline const T* GetVTK( ) const;

      template< class T >
        inline T* GetInput( const std::string& id );

      template< class T >
        inline const T* GetInput( const std::string& id ) const;

      template< class T >
        inline T* GetOutput( const std::string& id );

      template< class T >
        inline const T* GetOutput( const std::string& id ) const;

    protected:
      ProcessObject( );
      virtual ~ProcessObject( );

      virtual void _AddInput( const std::string& name );

      template< class F >
        inline F* _CreateITK( );

      template< class F >
        inline F* _CreateVTK( );

      template< class O >
        inline void _MakeOutput( const std::string& id );

      virtual std::string _GenerateData( ) = 0;

    private:
      // Purposely not implemented
      ProcessObject( const Self& );
      Self& operator=( const Self& );

    protected:
      itk::ProcessObject::Pointer     m_ITKObject;
      vtkSmartPointer< vtkAlgorithm > m_VTKObject;

      Parameters::Pointer m_Parameters;
      ParametersQtDialog* m_ParametersDialog;
      TInteractors        m_Interactors;
      Plugins* m_Plugins;
      bool m_Interactive;

      typedef std::map< std::string, DataObject::Pointer > _TDataContainer;
      _TDataContainer m_Inputs;
      _TDataContainer m_Outputs;
      std::map< std::string, std::string > m_OutputObjectsNames;
    };

    /**
     * Plugin provider
     */
    CPPLUGINS_PROVIDER_HEADER( ProcessObject );

  } // ecapseman

} // ecapseman

#include <cpPlugins/Interface/ProcessObject.hxx>

#endif // __CPPLUGINS__INTERFACE__PROCESSOBJECT__H__

// eof - $RCSfile$