segmentation.hpp

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/*
  SEGMENTATION.hpp  -  Partitioning of a timeline for organising the render graph.

  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_SEGMENTATION_H
#define STEAM_FIXTURE_SEGMENTATION_H


#include "steam/fixture/segment.hpp"
#include "lib/time/timevalue.hpp"
#include "lib/iter-adapter-stl.hpp"
#include "lib/format-string.hpp"
#include "lib/nocopy.hpp"

#include <list>
#include <optional>
#include <functional>


namespace steam {
namespace fixture {
  
  namespace error = lumiera::error;
  
  using std::list;
  using lib::time::TimeValue;
  using util::_Fmt;
  
  using OptTime = std::optional<lib::time::Time>;
  
  class Segmentation
    : util::NonCopyable
    {
      list<Segment> segments_;
      
    protected:
      Segmentation()                
        : segments_{1}
      { }
      
    public:
      virtual ~Segmentation();      
      
      size_t
      size()  const
        {
          return segments_.size();
        }
      
      Segment const&
      operator[] (TimeValue time)  const
        {
          for (auto& seg : segments_)
            if (seg.after() > time)
              return seg;
          throw error::State (_Fmt{"Fixture datastructure corrupted: Time %s not covered"} % time);
        }
      
      auto
      eachSeg()  const              
        {
          return lib::iter_stl::eachElm (segments_);
        }
      
      
      Segment const&
      splitSplice (OptTime start, OptTime after, engine::ExitNodes&& modelLink  =ExitNodes{});
      
      
    protected:
      void
      adaptSpecification (std::function<NodeGraphAttachment(NodeGraphAttachment const&)> rewrite)
        {
          for (fixture::Segment& seg : segments_)
              seg.exitNode = move(rewrite (seg.exitNode));
        }
    };
  
  
  
}} // namespace steam::fixture
#endif /*STEAM_FIXTURE_SEGMENTATION_H*/