// $Id$
// Category: motif
//
// Class AliMpMotifPositionPadIterator
// -----------------------------------
// Class, which defines an iterator over the pads of a given motif type
//
// Authors: David Guez, Ivana Hrivnacova; IPN Orsay

#ifndef ALI_MP_MOTIF_POSITION_PAD_ITERATOR_H
#define ALI_MP_MOTIF_POSITION_PAD_ITERATOR_H

#include "AliMpVPadIterator.h"
#include "AliMpIntPair.h"
#include "AliMpMotifTypePadIterator.h"

class AliMpMotifPosition;

class AliMpMotifPositionPadIterator : public AliMpVPadIterator
{
  public:
    AliMpMotifPositionPadIterator();
    AliMpMotifPositionPadIterator(const AliMpMotifPosition* motifPos);
    AliMpMotifPositionPadIterator(const AliMpMotifPositionPadIterator& right);
    virtual ~AliMpMotifPositionPadIterator();     

    // operators
    AliMpMotifPositionPadIterator& 
      operator = (const AliMpMotifPositionPadIterator& right);

    virtual void First();
    virtual void Next();
    virtual Bool_t IsDone() const;
    virtual AliMpPad CurrentItem() const;
    virtual void Invalidate();

  private:
    // private methods
    Bool_t IsValid() const;

    // private data members
    const AliMpMotifPosition* fMotifPos; // the AliMpMotifPosition over which iterate
    AliMpMotifTypePadIterator fIterator; // Iterator over the motif type

 ClassDef(AliMpMotifPositionPadIterator,1) // iterator over motif's pads
};

#endif // ALI_MP_MOTIF_POSITION_PAD_ITERATOR_H