// -*- C++ -*- //

#ifndef NBTAB_H

#define NBTAB_H

class NoteBookTab;

#include "mapstorage.h"

#include "map_win.h"

#include "graph_displayer_canvas.h"

#include <libgnomecanvasmm.h>

#include <libgnomecanvasmm/polygon.h>

///One tab in the Notebook that is placed in the main window (\ref MainWin).

///One graph and all of its accessories like maps are assigned to one tab in the notebook.

///\ref NoteBookTab is responsible for the user defined display of the graph: view can be

///set by visualized maps, therefore \ref NoteBookTab must provide an interface to set the

///view of graph. This is \ref Mapwin window.

///

///\ref NoteBookTab is also

///responsible for modify the graph if it is

///requested. Therefore it is responsible for translating user events to modifications to

///do on graph, like node/edge addition/deletion, map modification, addition and so on.

///

///To be able to solve these tasks the help of \ref MainWin is also needed, for example to

///know which editor-tool is active at the moment. Therefore \ref MainWin knows \ref NoteBookTab.

///

///Some information in the other direction is needed as well: for example when new map creation is requested for this tab

///\ref NoteBookTab must ask \ref MainWin to pop-up a \ref NewMapWin. Communication in this direction is realized by signals

///therefore \ref NoteBookTab does not know \ref MainWin at all, but in this way it is not necessary.

class NoteBookTab : public Gtk::VBox

{

public:

  ///Constructor of \ref NoteBookTab

  ///It initiates the \re GraphDisplayerCanvas, on which the graph will be drawn

  ///Signals of \ref MapStorage will be bound to the appropriate callback functions here.

  NoteBookTab();

  ///Maps assigned to the graph displayed in this \ref NoteBookTab of notebook.

  MapStorage mapstorage;

  ///Title changement indicator.

  ///If graph is loaded from disk or saved to disk or changed its name somehow

  ///this signal will be emit to let

  ///\ref MainWin know that it has to modify the title of the main window.

  ///It contains the new title.

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

  ///Returns \ref signal_title to be the caller able to connect it to a callback function.

  sigc::signal<void, std::string> signal_title_ch();

  ///Indicates that new map window should be popped up.

  ///\ref NoteBookTab can ask \ref MainWin to pop up a \ref NweMapWin ny emitting this signal.

  ///The signal contains whether an edgemap or a nodemap should be popped up. \ref NewMapWin

  ///is not popped up by \ref NoteBookTab, because not only \ref NoteBookTab needs \ref NewMapWin,

  ///but for example \ref MainWin and \ref AlgoWin s as well.

  sigc::signal<void, NoteBookTab *, bool> signal_newmap;

  ///Returns \ref signal_newmap to be the caller able to connect it to a callback function.

  sigc::signal<void, NoteBookTab *, bool> signal_newmap_needed();

  ///Loads the given file.

  ///The given file will be load in the \ref MapStorage and afeter that

  ///\ref GraphDisplayerCanvas will be requested to display the graph.

  ///\ref GraphDisplayer will get datas from the recently set \ref MapStorage.

  void readFile(const std::string &);

  ///The graph will be drawn on this \ref GraphDisplayerCanvas

  GraphDisplayerCanvas * gd_canvas;

  ///Indicates whether the \ref MapWin is opened or not. See \ref mapwin.

  bool mapwinexists;

  ///Address of the only \ref MapWin that the \ref NoteBookTab can open.

  ///Only one of this window can be opened at the same time (\ref mapwinexists), 

  ///because there is no need for more, one per tab is enough.

  ///There won1t be benefit of more than one, but it would be

  ///more complicated to synchronize them.

  MapWin * mapwin;

public:

  ///Callback for 'FileNew' action.

  virtual void newFile();

  ///Callback for 'FileOpen' action.

  virtual void openFile();

  ///Callback for 'FileSave' action.

  virtual void saveFile();

  ///Callback for 'FileSaveAs' action.

  virtual void saveFileAs();

  ///Callback for 'Close' action.

  virtual void close();

  ///Handles changement of view of graph.

  ///If the user changes the map to show by a property to a nother in \ref MapWin,

  ///\ref MapWin will call this function. This function will registrate in \ref MapStorage

  ///the new map to display by the changed property. After that \ref MapStorage will

  ///emits a signal that will be forwarded to \ref GraphDisplayerCanvas to update the

  ///appropriate parts of graph.

  ///\param itiesedge whether the changed property is edge property or node property

  ///\param prop id of property, see all_include.h

  ///\param mapname name of the recently selected map

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

  ///Emits a signal that request \ref MainWin to pop up \ref NewMapWin

  ///This function is called by \ref MapWin.

  ///\param itisedge whether the new map should be an edgemap or a nodemap.

  void popupNewMapWin(bool itisedge);

  ///Returns the actually selected edgemap to visualize by the given property.

  ///\ref MapWin calls this function, beacuse it does not know \ref MapStorage.

  ///\param prop property to inquire.

  std::string getActiveEdgeMap(int prop);

  ///Returns the actually selected nodemap to visualize by the given property.

  ///\ref MapWin calls this function, beacuse it does not know \ref MapStorage.

  ///\param prop property to inquire.

  std::string getActiveNodeMap(int prop);

  ///Registers recently created edgemap in \ref MapWin.

  ///After creation of new map \ref MapStorage emits a signal.

  ///This signal is bound to this callback function, that will call

  ///a function with the same name and same parameterin \ref MapWin.

  ///This call-forwarder function is needed, because \ref Mapstorage does not know \ref MapWin

  ///\param mapname name of new map

  void registerNewEdgeMap(std::string mapname);

  ///Registers recently created nodemap in \ref MapWin.

  ///After creation of new map \ref MapStorage emits a signal.

  ///This signal is bound to this callback function, that will call

  ///a function with the same name and same parameter in \ref MapWin.

  ///This call-forwarder function is needed, because \ref Mapstorage does not know \ref MapWin

  ///\param mapname name of new map

  void registerNewNodeMap(std::string mapname);

  ///Pops up and registrates the \ref MapWin of \ref NoteBookTab.

  ///See also

  ///\ref mapwin.

  void createMapWin(std::string);

  ///Closes and deregistrates the \ref MapWin of \ref NoteBookTab.

  ///See also

  ///\ref mapwin.

  void closeMapWin();

};

#endif //NBTAB_H