Skeleton_blocker_simple_traits.h

/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
 *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
 *    Author(s):       David Salinas
 *
 *    Copyright (C) 2014 Inria
 *
 *    Modification(s):
 *      - YYYY/MM Author: Description of the modification
 */
 
#ifndef SKELETON_BLOCKER_SKELETON_BLOCKER_SIMPLE_TRAITS_H_
#define SKELETON_BLOCKER_SKELETON_BLOCKER_SIMPLE_TRAITS_H_
 
#include <gudhi/Skeleton_blocker/Skeleton_blocker_simplex.h>
 
#include <string>
#include <sstream>
 
namespace Gudhi {
 
namespace skeleton_blocker {
 
struct Skeleton_blocker_simple_traits {
  struct Root_vertex_handle {
    typedef int boost_vertex_handle;
 
    explicit Root_vertex_handle(boost_vertex_handle val = -1)
        : vertex(val) { }
    boost_vertex_handle vertex;
 
    bool operator!=(const Root_vertex_handle& other) const {
      return !(this->vertex == other.vertex);
    }
 
    bool operator==(const Root_vertex_handle& other) const {
      return this->vertex == other.vertex;
    }
 
    bool operator<(const Root_vertex_handle& other) const {
      return this->vertex < other.vertex;
    }
 
    friend std::ostream& operator<<(std::ostream& o,
                                    const Root_vertex_handle & v) {
      o << v.vertex;
      return o;
    }
  };
 
  struct Vertex_handle {
    typedef int boost_vertex_handle;
 
    explicit Vertex_handle(boost_vertex_handle val = -1)
        : vertex(val) { }
 
    operator int() const {
      return static_cast<int> (vertex);
    }
 
    boost_vertex_handle vertex;
 
    bool operator==(const Vertex_handle& other) const {
      return this->vertex == other.vertex;
    }
 
    bool operator!=(const Vertex_handle& other) const {
      return this->vertex != other.vertex;
    }
 
    bool operator<(const Vertex_handle& other) const {
      return this->vertex < other.vertex;
    }
 
    friend std::ostream& operator<<(std::ostream& o, const Vertex_handle & v) {
      o << v.vertex;
      return o;
    }
  };
 
  class Graph_vertex {
    bool is_active_;
    Root_vertex_handle id_;
 
   public:
    virtual ~Graph_vertex() { }
 
    void activate() {
      is_active_ = true;
    }
 
    void deactivate() {
      is_active_ = false;
    }
 
    bool is_active() const {
      return is_active_;
    }
 
    void set_id(Root_vertex_handle i) {
      id_ = i;
    }
 
    Root_vertex_handle get_id() const {
      return id_;
    }
 
    virtual std::string to_string() const {
      std::ostringstream res;
      res << id_;
      return res.str();
    }
 
    friend std::ostream& operator<<(std::ostream& o, const Graph_vertex & v) {
      o << v.to_string();
      return o;
    }
  };
 
  class Graph_edge {
    Root_vertex_handle a_;
    Root_vertex_handle b_;
    int index_;
 
   public:
    Graph_edge()
        : a_(-1),
        b_(-1),
        index_(-1) { }
 
    int& index() {
      return index_;
    }
 
    int index() const {
      return index_;
    }
 
    void setId(Root_vertex_handle a, Root_vertex_handle b) {
      a_ = a;
      b_ = b;
    }
 
    Root_vertex_handle first() const {
      return a_;
    }
 
    Root_vertex_handle second() const {
      return b_;
    }
 
    friend std::ostream& operator<<(std::ostream& o, const Graph_edge & v) {
      o << "(" << v.a_ << "," << v.b_ << " - id = " << v.index();
      return o;
    }
  };
};
 
}  // namespace skeleton_blocker
 
namespace skbl = skeleton_blocker;
 
}  // namespace Gudhi
 
#endif  // SKELETON_BLOCKER_SKELETON_BLOCKER_SIMPLE_TRAITS_H_