node-graph-attachment.hpp

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/*
  NODE-GRAPH-ATTACHMENT.hpp  -  Binding from a Fixture-Segment into the low-level-Model

  Copyright (C)         Lumiera.org
    2023,               Hermann Vosseler <Ichthyostega@web.de>

  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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/


#ifndef STEAM_FIXTURE_NODE_GRAPH_ATTACHMENT_H
#define STEAM_FIXTURE_NODE_GRAPH_ATTACHMENT_H

#include "steam/engine/exit-node.hpp"
//#include "lib/time/timevalue.hpp"
#include "lib/util.hpp"

#include <utility>

namespace steam {
namespace fixture {
  
  using engine::ExitNode;
  using engine::ExitNodes;
  
  
  class NodeGraphAttachment
    {
      ExitNodes exitNodes_;
      
    public:
      NodeGraphAttachment()
        : exitNodes_{}
      { }
      
      NodeGraphAttachment (ExitNodes&& exitNodes)
        : exitNodes_{std::move (exitNodes)}
      { }
      
      // default copy acceptable
      
      ExitNode const&
      operator[] (size_t idx)  const
        {
          return idx < exitNodes_.size()? exitNodes_[idx]
                                        : ExitNode::NIL;
        }
      
      bool
      empty()  const
        {
          return util::isnil (exitNodes_);
        }
    };
  
  
  
}} // namespace steam::fixture
#endif /*STEAM_FIXTURE_NODE_GRAPH_ATTACHMENT_H*/