Graph.h

/* Copyright 2017-2021 Institute for Automation of Complex Power Systems,
 *                     EONERC, RWTH Aachen University
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 *********************************************************************************/
 
#pragma once
 
#include <map>
 
#include <graphviz/cgraph.h>
 
#include <dpsim-models/Definitions.h>
 
namespace CPS {
namespace Graph {
 
enum class Type { undirected, directed };
 
class Graph;
 
class Element {
 
protected:
  void *mPtr;
  int mKind;
 
public:
  void set(const String &key, const String &value, bool html = false);
};
 
class Node : public Element {
public:
  Agnode_t *mNode;
 
  Node(Graph *g, const String &name);
};
 
class Edge : public Element {
public:
  Agedge_t *mEdge;
 
  Edge(Graph *g, const String &name, Node *head, Node *tail);
};
 
// See: http://www.graphviz.org/pdf/libguide.pdf
class Graph : public Element {
 
protected:
  std::map<String, Node *> mNodes;
  std::map<String, Edge *> mEdges;
 
public:
  Agraph_t *mGraph;
 
  Graph(const String &name, Type type, bool strict = false);
  ~Graph();
 
  void render(std::ostream &os, const String &layout = "dot",
              const String &format = "svg");
 
  Node *addNode(const String &name);
  Edge *addEdge(const String &name, Node *head, Node *tail);
 
  Node *node(const String &name);
  Edge *edge(const String &name);
};
} // namespace Graph
} // namespace CPS