FeatureHandle.h

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// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2017.
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// $Maintainer: Timo Sachsenberg $
// $Authors: $
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#ifndef OPENMS_KERNEL_FEATUREHANDLE_H
#define OPENMS_KERNEL_FEATUREHANDLE_H

#include <OpenMS/CONCEPT/Types.h>
#include <OpenMS/CONCEPT/UniqueIdInterface.h>
#include <OpenMS/KERNEL/Peak2D.h>
#include <OpenMS/OpenMSConfig.h>

#include <iosfwd>
#include <vector>

namespace OpenMS
{
  class BaseFeature;

  class OPENMS_DLLAPI FeatureHandle :
    public Peak2D,
    public UniqueIdInterface
  {

public:
    class FeatureHandleMutable_;


    typedef Int ChargeType;
    typedef float WidthType;


    FeatureHandle();

    FeatureHandle(UInt64 map_index, const Peak2D& point, UInt64 element_index);

    FeatureHandle(UInt64 map_index, const BaseFeature& feature);

    FeatureHandle(const FeatureHandle& rhs);

    FeatureHandle& operator=(const FeatureHandle& rhs);

    virtual ~FeatureHandle();

    FeatureHandleMutable_& asMutable() const;


    UInt64 getMapIndex() const;

    void setMapIndex(UInt64 i);

    void setCharge(ChargeType charge);

    ChargeType getCharge() const;

    void setWidth(WidthType width);

    WidthType getWidth() const;


    bool operator==(const FeatureHandle& i) const;

    bool operator!=(const FeatureHandle& i) const;

    struct IndexLess :
      std::binary_function<FeatureHandle, FeatureHandle, bool>
    {
      bool operator()(FeatureHandle const& left, FeatureHandle const& right) const;
    };

protected:

    UInt64 map_index_;
    Int charge_;
    float width_;
  };

  class OPENMS_DLLAPI FeatureHandle::FeatureHandleMutable_ :
    public FeatureHandle
  {
private:
    using FeatureHandle::setUniqueId;
    using FeatureHandle::setMapIndex;
    FeatureHandleMutable_();
    FeatureHandleMutable_(const FeatureHandleMutable_&);
  };

  inline FeatureHandle::FeatureHandleMutable_& FeatureHandle::asMutable() const
  {
    // the const cast is to remove constness, but note that FeatureHandleMutable_ lacks some mutators
    // TODO use const_cast
    return static_cast<FeatureHandleMutable_&>(const_cast<FeatureHandle&>(*this));
  }

  inline bool FeatureHandle::IndexLess::operator()(FeatureHandle const& left, FeatureHandle const& right) const
  {
    // if map indices are equal, use unique ids
    if (left.map_index_ == right.map_index_)
    {
      return left.getUniqueId() < right.getUniqueId();
    }
    //else use map indices
    return left.map_index_ < right.map_index_;
  }

  OPENMS_DLLAPI std::ostream& operator<<(std::ostream& os, const FeatureHandle& cons);
} // namespace OpenMS

#endif // OPENMS_KERNEL_FEATUREHANDLE_H