/* $Id$ */
/*
 * Cantus Tag Editor
 * Copyright © 2002-2004 by Samuel Abels <spam@debain.org>
 * Copyright © 2007 by Tim Huetz <tim.huetz@futures-net.de>
 *
 * This program 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 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 **/

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#ifndef HAVE_GENRESELECTOR_H
#define HAVE_GENRESELECTOR_H

#include <iostream>
#include <gtkmm.h>
#include <libintl.h>
#include <list>
#include <map>
#include <cantusplugins/id3v1/id3genre.h>

#define _(String) gettext (String)
#define gettext_noop(String) (String)
#define N_(String) gettext_noop (String)

using namespace std;
using namespace Gtk;


class GenreSelector : public Gtk::Window {
public:
  GenreSelector(bool allow_multiple = TRUE);
  ~GenreSelector();
  
  /* Triggered whenever the Close button has been clicked. */
  SigC::Signal0<void>                signal_button_close_clicked;
  /* Triggered whenever the genre selection has been changed. */
  SigC::Signal1<void, list<string> > signal_selection_changed;
  
  /* Defines all genres that are in the list.
   */
  void set_genres(char **genrelist);
  
  /* Updates all genres in the GUI.
   */
  void update(void);
  
  /* Clears the genrelist.
   */
  void clear(void);
  
  /* Defines all genres that are selected.
   */
  void set_selected_genres(list<string> selectedgenres);
  
  /* Defines all genres that are selected. The argument is a string listing all
   * Genre names separated by commas. Spaces trailing or leading a comma will be
   * stripped automagically.
   */
  void set_selected_genres(string genrestring);
  
  /* Select the Genre with the given name. Returns TRUE if anything was
   * selected.
   */
  bool select_genre(string genre);
  
  /* Unselect all genres.
   */
  void unselect_all(void);
  
  /* Returns an string, containing a comma-separated list of all selected
   * genres.
   */
  string get_selected_genres(void);
  
  /* Defines whether or not multiple genres can be selected at once.
   */
  void set_select_multiple(bool allowed);
  
  /* Defines whether or not the widgets are sensitive.
   */
  void set_sensitive(bool allowed);
  
private:
  void on_selection_changed(string genre);
  
  Table          toplevel;
  ScrolledWindow scrolled;
  VBox           genrebox;
  Button         button;
  bool           select_multiple;
  bool           lock_events;
  
  std::map<string, CheckButton*> genres;    // Map Genre <-> Widget.
  std::list<string>              selected;  // All selected genres.
};

#endif