ConstantLengthFragSetIterator_.hh

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/// @file   core/fragments/ConstantLengthFragSet.hh
/// @brief  yields a simple implementation of a fragset
/// @author Oliver Lange ( olange@u.washington.edu)
/// @date   Wed Aug 22 12:08:31 2007
///

#ifndef INCLUDED_core_fragment_ConstantLengthFragSetIterator__HH
#define INCLUDED_core_fragment_ConstantLengthFragSetIterator__HH

// Unit Headers
//#include <core/fragment/ConstantLengthFragSet.fwd.hh>

// Package Headers
#include <core/fragment/FrameList.hh>
#include <core/fragment/FrameIteratorWorker_.hh>
// AUTO-REMOVED #include <core/fragment/FrameIterator.fwd.hh>

// AUTO-REMOVED #include <core/fragment/ConstantLengthFragSet.fwd.hh>


// Project Headers
#include <core/types.hh>

// Utility headers
#include <utility/vector1.fwd.hh>
#include <utility/pointer/ReferenceCount.hh>

// std Headers
// AUTO-REMOVED #include <iterator>

#include <core/fragment/Frame.hh>
#include <utility/vector1.hh>


/* Just a mad thought: with fragments becoming ever more "Residue" like one might want to use the
   packer to choose a combination of good fragments instead of makeing independent choices.
   I guess, it is only a question of keeping the combinatorics in control...
   maybe it makes sense to pack with only "unconfident" regions of the backbone flexible ..
*/

namespace core {
namespace fragment {


class ConstantLengthFragSetIterator_ : public FrameIteratorWorker_ {
  friend class ConstantLengthFragSet;
protected:
  ConstantLengthFragSetIterator_( FrameList::const_iterator it, FrameList::const_iterator eit ) : it_( it ), eit_( eit ) {
    if ( it != eit ) {
      if ( *it ) {
        if ( (*it)->nr_frags() ) return;
      }
      ++(*this); //if not already pointing to some valid stuff ... increment until it is
    }
  };

  bool operator != ( FrameIteratorWorker_ const& fiw ) const {
    ConstantLengthFragSetIterator_ const& fsit ( dynamic_cast< ConstantLengthFragSetIterator_ const& > ( fiw ) );
    return it_!=fsit.it_;
  };

  FrameIteratorWorker_& operator++ () {
    while ( ++it_ != eit_ ) {
      if (*it_) {
        if ( (*it_)->nr_frags() ) return *this;
      }
    };
    return *this;
  }

  FrameIteratorWorker_& operator = ( FrameIteratorWorker_ const& fiw ) {
    ConstantLengthFragSetIterator_ const& fsit ( dynamic_cast< ConstantLengthFragSetIterator_ const& > ( fiw ) );
    it_= fsit.it_;
    return *this;
  }

  FrameOP frame_ptr() {
    return *it_;
  }

  FrameCOP frame_ptr() const {
    return *it_;
  }

private:
  FrameList::const_iterator it_;
  FrameList::const_iterator eit_;
};

}
}

#endif