/* -*- 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.

 *

 */

#ifndef MAPSTORAGE_H

#define MAPSTORAGE_H

class Mapstorage;

#include "all_include.h"

#include "xymap.h"

#include <libgnomecanvasmm.h>

///class MapStorage handles NodeMaps and EdgeMaps.

///Class MapStorage is responsible for storing

///NodeMaps and EdgeMaps that can be shown later

///on GUI. Therefore maps can be added to it,

///and datas over the added maps can be queried.

///The maps will be stored in an std::map,

///referenced with their names. Unfortunately at

///the moment it works only with double type maps

///

///\todo too many things are public!!

class MapStorage

{

public:

  enum value {DOUBLE, STRING};

  enum type {NORMAL, GUI};

  ///The graph for which the datas are stored.

  Graph graph;

  /// the coordinates of the nodes

  XYMap<Graph::NodeMap<double> > coords;

  /// the coordinates of the arrows on the edges

  XYMap<Graph::EdgeMap<double> > arrow_pos;

  ///The content of the object has changed, update is needed.

  bool modified;

  ///Name of file loaded in object.

  std::string file_name;

  ///Stores double type NodeMaps

  std::map< std::string,Graph::NodeMap<double> * > nodemap_storage;

  ///Stores double type EdgeMaps

  std::map< std::string,Graph::EdgeMap<double> * > edgemap_storage;

  ///Stores the default values for the different visualization node attributes

  std::vector<Graph::NodeMap<double> > default_nodemaps;

  ///Stores the default values for the different visualization edge attributes

  std::vector<Graph::EdgeMap<double> > default_edgemaps;

  ///Stores the active maps for the different visualization node attributes

  std::vector< std::string > active_nodemaps;

  /// Stores the active maps for the different visualization edge attributes

  std::vector< std::string > active_edgemaps;

  /// Default values for the maps

  std::map< std::string, double > nodemap_default;

  /// Default values for the maps

  std::map< std::string, double > edgemap_default;

  bool arrow_pos_read_ok;

protected:

  /// type of the signal emitted if the visualization of the maps might have to be updated.

  /// bool shows us whether the changed map is edge or nodemap.

  /// int tells us the refreshed property

  typedef sigc::signal<void, bool, int> Signal_Prop;

  /// Signal emitted on any change made on map values

  Signal_Prop signal_prop;

  /// Signal emitted in the case of nodemap addition

  /// std::string is the

  ///name of the new map

  sigc::signal<void, std::string> signal_node_map;

  /// Signal emitted in the case of edgemap addition

  /// std::string is the

  ///name of the new map

  sigc::signal<void, std::string> signal_edge_map;

  /// Signal emitted, when entry in \ref MapWin should be changed.

  sigc::signal<void, bool, int, std::string> signal_map_win;

public:

  ///Constructor of MapStorage.

  ///Its all activity is initializing default values

  ///for different visualization attributes.

  MapStorage();

  ///Destructor of MapStorage

  ///Maps stored here are created with new. Destructor

  ///deletes them to free up the reserved memory.

  ~MapStorage();

  /// Registrates if the shown map by any attribute has changed to another.

  ///It handles the \ref active_edgemaps and

  ///\ref active_nodemaps vectors. It also emits \ref signal_prop signal to let

  ///know the interested objects that the visible map of a certain

  ///attribute has changed.

  ///\param itisedge edgemap or nodemap has changed

  ///\param prop the property of which the map is changed

  ///\param mapname the visible map

  void changeActiveMap(bool itisedge , int prop , std::string mapname);

  ///Emits signals that let change the active maps in \ref MapWin.

  void broadcastActiveMaps();

  /// Returns the active edgemap shown by a visualization property.

  /// \param prop is the property

  ///that shows the requested map.

  std::string getActiveEdgeMap(int prop);

  /// Returns the active nodemap shown by a visualization property.

  /// \param prop is the property

  ///that shows the requested map.

  std::string getActiveNodeMap(int prop);

  /// Returns the names of the edgemaps stored here.

  std::vector<std::string> getEdgeMapList();

  /// Returns the names of the nodemaps stored here.

  std::vector<std::string> getNodeMapList();

  ///returns \ref signal_prop to be able to connect functions to it

  Signal_Prop signal_prop_ch();

  ///returns \ref signal_node_map to be able to connect functions to it

  sigc::signal<void, std::string> signal_node_map_ch(){return signal_node_map;};

  ///returns \ref signal_edge_map to be able to connect functions to it

  sigc::signal<void, std::string> signal_edge_map_ch(){return signal_edge_map;};

  ///returns \ref signal_map_win to be able to connect functions to it

  sigc::signal<void, bool, int, std::string> signal_map_win_ch(){return signal_map_win;};

  ///Adds given map to storage.

  ///A name and the map itself has to be provided.

  ///\param mapname is the name of map

  ///\param nodemap is the pointer of the given nodemap

  ///\param def the default value of the map. If not given, it will be 0.

  ///If new edge is added to graph the value of it in the map will be this.

  ///\todo map should be given by reference!

  ///\todo why is default value stored?

  int addNodeMap(const std::string & mapname,Graph::NodeMap<double> * nodemap, double def=0.0);

  ///Adds given map to storage. A name and the map itself has to be provided.

  ///A name and the map itself has to be provided.

  ///\param mapname is the name of map

  ///\param edgemap is the pointer of the given edgemap

  ///\param def the default value of the map. If not given, it will be 0.

  ///If new edge is added to graph the value of it in the map will be this.

  ///\todo map should be given by reference!

  int addEdgeMap(const std::string & mapname,Graph::EdgeMap<double> * edgemap, double def=0.0);

  ///Returns how much nodemaps is stored in \ref MapStorage

  int numOfNodeMaps() {return nodemap_storage.size();};

  ///Returns how much edgemaps is stored in \ref MapStorage

  int numOfEdgeMaps() {return edgemap_storage.size();};

  ///Returns the maximum value of the given NodeMap.

  ///NodeMap has to be given by its name.

  ///\param name the name of map of which maximum is searched

  double maxOfNodeMap(const std::string & name);

  ///Returns the maximum value of the given EdgeMap.

  ///EdgeMap has to be given by its name.

  ///\param name the name of map of which maximum is searched

  double maxOfEdgeMap(const std::string & name);

  ///Returns the minimum value of the given NodeMap.

  ///NodeMap has to be given by its name.

  ///\param name the name of map of which minimum is searched

  double minOfNodeMap(const std::string & name);

  ///Returns the minimum value of the given EdgeMap.

  ///EdgeMap has to be given by its name.

  ///\param name the name of map of which minimum is searched

  double minOfEdgeMap(const std::string & name);

  ///Returns iterator pointing to the first NodeMap in storage.

  ///To be able to iterate through each maps this function

  ///returns an iterator pointing to the first nodemap in

  ///the storage.

  std::map< std::string,Graph::NodeMap<double> * >::iterator beginOfNodeMaps(){return nodemap_storage.begin();};

  ///Returns iterator pointing to the first EdgeMap in storage.

  ///To be able to iterate through each maps this function

  ///returns an iterator pointing to the first edgemap in

  ///the storage.

  std::map< std::string,Graph::EdgeMap<double> * >::iterator beginOfEdgeMaps(){return edgemap_storage.begin();};

  ///Returns iterator pointing after the last NodeMap in storage.

  ///To be able to iterate through each maps this function

  ///returns an iterator pointing to the last nodemap in the storage.

  std::map< std::string,Graph::NodeMap<double> * >::iterator endOfNodeMaps(){return nodemap_storage.end();};

  ///Returns iterator pointing after the last EdgeMap in storage.

  ///To be able to iterate through each maps this function

  ///returns an iterator pointing to the last edgemap in the storage.

  std::map< std::string,Graph::EdgeMap<double> * >::iterator endOfEdgeMaps(){return edgemap_storage.end();};

  ///Emits \ref signal_prop if mapvalues have changed, and MapStorage gets to know it.

  ///If values in a map have changed, this function checks, whether it is displayed.

  ///This check means searching the given mapname between active maps

  ///(\ref active_nodemaps, \ref active_edgemaps). If it is there at a certain property,

  ///it emits a signal with the property, where the gotten mapname was found. One signal

  ///is emitted for each property displaying the given map.

  ///\param itisedge whether the map an edgemap or nodemap

  ///\param mapname name of map to visualize

  void mapChanged(bool itisedge, std::string mapname);

  ///Read datas from the given filename.

  int readFromFile(const std::string &);

  ///Save datas to the given filename.

  void writeToFile(const std::string &);

  ///Deletes all datastructures stored here.

  void clear();

  void ArrowPosReadOK();

};

#endif //MAPSTORAGE_H