#ifndef __PIPELINEEDITOR__NODE__H__
#define __PIPELINEEDITOR__NODE__H__

#include <map>
#include <set>

#include <QGraphicsItem>
#include <QList>


#include <iostream>


// Some forward declarations
class QGraphicsSceneMouseEvent;
class QGraphicsSceneHoverEvent;

// Some forward declarations
namespace cpPlugins
{
  namespace Interface
  {
    class Object;
  }
}

namespace PipelineEditor
{
  // Some other forward declarations
  class Edge;
  class GraphCanvas;

  /**
   */
  class Node
    : public QGraphicsItem
  {
  public:
    Node( GraphCanvas* canvas, cpPlugins::Interface::Object* object );
    virtual ~Node( );

    void addEdge( Edge* edge );
    QList< Edge* > edges( ) const;

    void updateRepresentation( );

    QRectF boundingRect( ) const;
    QPainterPath shape( ) const;
    void paint(
      QPainter* painter,
      const QStyleOptionGraphicsItem* option,
      QWidget* widget
      );
    void moveBy(qreal dx, qreal dy)
      {
        std::cout << "move: " << dx << " " << dy << std::endl;
        this->QGraphicsItem::moveBy( dx, dy );
      }

  protected:
    QVariant itemChange( GraphicsItemChange change, const QVariant& value );

    void mousePressEvent( QGraphicsSceneMouseEvent* event );
    void mouseReleaseEvent( QGraphicsSceneMouseEvent* event );
    void mouseDoubleClickEvent( QGraphicsSceneMouseEvent* event );
    void hoverMoveEvent( QGraphicsSceneHoverEvent* event );
    void hoverLeaveEvent( QGraphicsSceneHoverEvent* event );
    void dragMoveEvent( QGraphicsSceneDragDropEvent* event );
    void dragLeaveEvent( QGraphicsSceneDragDropEvent* event );
    void dropEvent( QGraphicsSceneDragDropEvent* event );

    void _selectPort( const QPointF& pos );
    void _deselectPort( );

  private:
    GraphCanvas*   m_Canvas;
    QList< Edge* > m_Edges;
    cpPlugins::Interface::Object* m_Object;

    // Graphical objects
    QString m_Label;
    QRectF m_Bounds;
    std::set< std::string > m_Inputs;
    std::set< std::string > m_Outputs;
    std::map< std::string, QRectF > m_InputPorts;
    std::map< std::string, QRectF > m_OutputPorts;

    // Interaction objects
    const QRectF* m_SelectedPort;
    bool m_SelectedPortIsInput;
    bool m_DraggingPort;
  };

} // ecapseman

#endif // __PIPELINEEDITOR__NODE__H__

// eof - $RCSfile$