/* -*- C++ -*-

  * src/lemon/default_map.h - Part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2004 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Combinatorial Optimization Research Group, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_DEFAULT_MAP_H

 #define LEMON_DEFAULT_MAP_H

 #include <lemon/array_map.h>

 #include <lemon/vector_map.h>

 ///\ingroup graphmaps

 ///\file

 ///\brief Graph maps that construct and destruct

 ///their elements dynamically.

 namespace lemon {

 /// \addtogroup graphmaps

 /// @{

   /** The ArrayMap template class is graph map structure what

    *  automatically updates the map when a key is added to or erased from

    *  the map. This map uses the VectorMap if the ValueType is a primitive

    *  type and the ArrayMap for the other cases.

    *

    *  The template parameter is the MapRegistry that the maps

    *  will belong to and the ValueType.

    */

   template <typename _Graph, typename _Item, typename _ItemIt, typename _Value>

   struct DefaultMapSelector {

     typedef ArrayMap<_Graph, _Item, _ItemIt, _Value> Map;

   };

   // bool

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, bool> {

     typedef VectorMap<_Graph, _Item, bool> Map;

   };

   // char

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, char> {

     typedef VectorMap<_Graph, _Item, char> Map;

   };

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, signed char> {

     typedef VectorMap<_Graph, _Item, signed char> Map;

   };

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, unsigned char> {

     typedef VectorMap<_Graph, _Item, unsigned char> Map;

   };

   // int

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, signed int> {

     typedef VectorMap<_Graph, _Item, signed int> Map;

   };

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, unsigned int> {

     typedef VectorMap<_Graph, _Item, unsigned int> Map;

   };

   // short

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, signed short> {

     typedef VectorMap<_Graph, _Item, signed short> Map;

   };

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, unsigned short> {

     typedef VectorMap<_Graph, _Item, unsigned short> Map;

   };

   // long

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, signed long> {

     typedef VectorMap<_Graph, _Item, signed long> Map;

   };

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, unsigned long> {

     typedef VectorMap<_Graph, _Item, unsigned long> Map;

   };

   // \todo handling long long type

   // float

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, float> {

     typedef VectorMap<_Graph, _Item, float> Map;

   };

   // double

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, double> {

     typedef VectorMap<_Graph, _Item,  double> Map;

   };

   // long double

   template <typename _Graph, typename _Item, typename _ItemIt>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, long double> {

     typedef VectorMap<_Graph, _Item, long double> Map;

   };

   // pointer

   template <typename _Graph, typename _Item, typename _ItemIt, typename _Ptr>

   struct DefaultMapSelector<_Graph, _Item, _ItemIt, _Ptr*> {

     typedef VectorMap<_Graph, _Item, _Ptr*> Map;

   };

   template <typename _Graph, 

 	    typename _Item,

 	    typename _ItemIt,

 	    typename _Value>

   class DefaultMap : public DefaultMapSelector<_Graph, _Item, _ItemIt, _Value>::Map {

   public:

     typedef typename DefaultMapSelector<_Graph, _Item, _ItemIt, _Value>::Map Parent;

     typedef DefaultMap<_Graph, _Item, _ItemIt, _Value> Map;

     typedef typename Parent::Graph Graph;

     typedef typename Parent::ValueType ValueType;

     DefaultMap(const Graph& _g) : Parent(_g) {}

     DefaultMap(const Graph& _g, const ValueType& _v) : Parent(_g, _v) {}

   };

   template <typename _Base> 

   class DefaultMappableGraphExtender : public _Base {

   public:

     typedef DefaultMappableGraphExtender<_Base> Graph;

     typedef _Base Parent;

     typedef typename Parent::Node Node;

     typedef typename Parent::NodeIt NodeIt;

     typedef typename Parent::Edge Edge;

     typedef typename Parent::EdgeIt EdgeIt;

     template <typename _Value>

     class NodeMap : public DefaultMap<Graph, Node, NodeIt, _Value> {

     public:

       typedef DefaultMappableGraphExtender<_Base> Graph;

       typedef typename Graph::Node Node;

       typedef typename Graph::NodeIt NodeIt;

       typedef DefaultMap<Graph, Node, NodeIt, _Value> Parent;

       //typedef typename Parent::Graph Graph;

       typedef typename Parent::ValueType ValueType;

       NodeMap(const Graph& _g) 

 	: Parent(_g) {}

       NodeMap(const Graph& _g, const ValueType& _v) 

 	: Parent(_g, _v) {}

     };

     template <typename _Value>

     class EdgeMap : public DefaultMap<Graph, Edge, EdgeIt, _Value> {

     public:

       typedef DefaultMappableGraphExtender<_Base> Graph;

       typedef typename Graph::Edge Edge;

       typedef typename Graph::EdgeIt EdgeIt;

       typedef DefaultMap<Graph, Edge, EdgeIt, _Value> Parent;

       //typedef typename Parent::Graph Graph;

       typedef typename Parent::ValueType ValueType;

       EdgeMap(const Graph& _g) 

 	: Parent(_g) {}

       EdgeMap(const Graph& _g, const ValueType& _v) 

 	: Parent(_g, _v) {}

     };

   };

 }

 #endif