#pragma once

// subtitleeditor -- a tool to create or edit subtitle
//
// https://kitone.github.io/subtitleeditor/
// https://github.com/kitone/subtitleeditor/
//
// Copyright @ 2005-2018, kitone
//
// 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/>.

#include <gtkmm.h>
#include <memory>

class DialogCharacterCodings : public Gtk::Dialog {
  class ColumnEncoding : public Gtk::TreeModel::ColumnRecord {
   public:
    ColumnEncoding() {
      add(description);
      add(charset);
    }

    Gtk::TreeModelColumn<Glib::ustring> description;
    Gtk::TreeModelColumn<Glib::ustring> charset;
  };

 public:
  DialogCharacterCodings(BaseObjectType *cobject,
                         const Glib::RefPtr<Gtk::Builder> &builder);

  // Create an instance of the dialog .ui file)
  // If the response is OK the config is saved.
  static std::unique_ptr<DialogCharacterCodings> create(Gtk::Window &parent);

 protected:
  // Create the columns "Description" and "Encoding".
  void create_columns(Gtk::TreeView *view, bool clickable);

  // Append encoding to the model.
  // Sets description and charset from Encodings.
  void append_encoding(Glib::RefPtr<Gtk::ListStore> store,
                       const Glib::ustring &charset);

  // Return true if the charset is already in the Displayed list.
  bool check_if_already_display(const Glib::ustring &charset);

  // Init the available treeview with all encodings.
  void init_encodings_available();

  // Init the displayed treeview with the config.
  void init_encodings_displayed();

  // Add character codings selected from Available to the Displayed.
  void on_button_add();

  // Remove selected items to the displayed treeview.
  void on_button_remove();

  // Update the sensitive of the "add" button.
  void on_encodings_available_selection_changed();

  // Update the sensitive of the "remove" button.
  void on_encodings_displayed_selection_changed();

  // Add the selected charset.
  void on_row_available_activated(const Gtk::TreeModel::Path &path,
                                  Gtk::TreeViewColumn *column);

  // Remove the selected charset.
  void on_row_displayed_activated(const Gtk::TreeModel::Path &path,
                                  Gtk::TreeViewColumn *column);

  // Save the values in the config.
  void save_config();

  // if the response is RESPONSE_OK save the config.
  virtual void on_response(int id);

 protected:
  ColumnEncoding m_column;

  Gtk::TreeView *treeviewAvailable;
  Glib::RefPtr<Gtk::ListStore> m_storeAvailable;

  Gtk::TreeView *m_treeviewDisplayed;
  Glib::RefPtr<Gtk::ListStore> m_storeDisplayed;

  Gtk::Button *m_buttonAdd;
  Gtk::Button *m_buttonRemove;
};
