category.hpp

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/*
  CATEGORY.hpp  -  tree like classification of Assets
 
   Copyright (C)
     2008,            Hermann Vosseler <Ichthyostega@web.de>
 
 **Lumiera** 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. See the file COPYING for further details.
 
*/
 
 
#ifndef STEAM_ASSET_CATEGORY_H
#define STEAM_ASSET_CATEGORY_H
 
#include "lib/symbol.hpp"
#include "lib/hash-standard.hpp"
 
#include <string>
#include <compare>
#include <boost/functional/hash.hpp>
 
 
 
namespace steam {
namespace asset {
  
  using lib::Literal;
  
  using std::string;
  using std::ostream;
  
  enum Kind
    { AUDIO
    , VIDEO
    , EFFECT
    , CODEC
    , STRUCT                                                     
    , META
    };
  
  /************************************************************************************/
  class Category
    {
      
      Kind kind_;
      string path_;
      
    public:
      Category (const Kind root, Literal subfolder ="")
        : kind_(root), path_(subfolder) {};
      
      auto operator<=> (Category const&) const  =default;
      
      bool hasKind  (Kind refKind)    const         { return kind_ == refKind; }
      bool isWithin (Category const&) const;
      void setPath  (string const& newpath)         { this->path_ = newpath; }
      
      operator string ()  const;
      
      friend size_t hash_value (Category const&);
    };
  
  
  inline size_t
  hash_value (Category const& cat)
  {
    size_t hash = 0;
    boost::hash_combine(hash, cat.kind_);
    boost::hash_combine(hash, cat.path_);
    return hash;
  }
  
  
  
}} // namespace steam::asset
#endif