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/*
Author: Shane Neph, Scott Kuehn
Date: Thu Sep 27 10:50:39 PDT 2007
*/
//
// BEDOPS
// Copyright (C) 2011-2022 Shane Neph, Scott Kuehn and Alex Reynolds
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef SWEEP_VISITORS_HPP
#define SWEEP_VISITORS_HPP
#include "algorithm/WindowSweep.hpp"
namespace Visitors {
// Visitor that should be inherited when using sweep() algorithm.
template <typename Ref, typename Map = Ref>
struct Visitor {
typedef Ref RefType;
typedef Map MapType;
// interface for sweep()
inline bool ManagesOwnMemory() const { return(false); }
inline void OnAdd(MapType* u) { Add(u); }
inline void OnDelete(MapType* u) { Delete(u); }
inline void OnDone() { DoneReference(); }
inline void OnEnd() { End(); }
inline void OnPurge() { Purge(); }
inline void OnStart(RefType* t) { SetReference(t); }
public:
Visitor() { /* */ }
template <typename U> explicit Visitor(const U&) { /* */ }
virtual ~Visitor() { /* */ }
// Derived Class interface : Must be public due to MultiVisitor-type usage
virtual void Delete(MapType*) = 0;
virtual void Add(MapType*) = 0;
virtual void DoneReference() = 0;
virtual void SetReference(RefType*) { /* */ }
virtual void End() { /* */ }
virtual void Purge() { /* */ }
};
} // namespace Visitors
#endif // SWEEP_VISITORS_HPP
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