/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2006

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, 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.

  *

  */

 #include <lemon/kruskal.h>

 #include <mapstorage.h>

 #include <mapselector.h>

 #include <algobox.h>

 #include <kruskalbox.h>

 enum {INPUT, OUTPUT, MAP_NUM};

 KruskalBox::KruskalBox(std::vector<std::string> t):AlgoBox()

 {

   init(t);

 }

 void KruskalBox::run()

 {

   if(

      tabcbt.get_active_text()!="" &&

      (edgemapcbts[INPUT])->get_active_text()!="" &&

      (edgemapcbts[OUTPUT])->get_active_text()!=""

      )

     {

       const Graph &g=mapstorage->graph;

       Graph::EdgeMap<double> * inputmap=

 	((mapstorage->edgemap_storage)[(edgemapcbts[INPUT])->get_active_text()]);

       Graph::EdgeMap<bool> outputmap(g);

       double res=kruskal(g, *inputmap, outputmap);

       for (EdgeIt i(g); i!=INVALID; ++i)

 	{

 	  if(outputmap[i])

 	    {

 	      (*((mapstorage->edgemap_storage)[(edgemapcbts[OUTPUT])->

 					       get_active_text()]))[i]=1;

 	    }

 	  else

 	    {

 	      (*((mapstorage->edgemap_storage)[(edgemapcbts[OUTPUT])->

 					       get_active_text()]))[i]=0;

 	    }

 	}

       std::ostringstream o;

       o << "Result: " << res;

       resultlabel.set_text(o.str());

       mapstorage->mapChanged(true, (edgemapcbts[OUTPUT])->get_active_text());

       //   mapstorage->changeActiveMap(true, E_COLOR,

       // 			      (edgemapcbts[OUTPUT])->get_active_text());

       //   mapstorage->changeActiveMap(true, E_TEXT,

       // 			      (edgemapcbts[INPUT])->get_active_text());

     }

 }

 void KruskalBox::build_box()

 {

   std::vector<std::string> empty_vector;

   addMapSelector("Edgecosts: ", true);

   addMapSelector("Edges of tree here: ", true);

   resultlabel.set_text("Result: algorithm is not run yet.");

   pack_start(resultlabel);

 }