new gui dialog for modifying octaves load path (bug #43549) Originally submitted by JunWang, Edited by Rik, jwe, and Torsten. * main-window.cc (main_window): initialize new m_settings_dlg class variable; (~main_window): delete set path dialog; (handle_set_path_dialog_request): new slot for opening the path dialog; (set_global_shortcuts): set shortcut for opening new path dialog; (construct_edit_menu): add and connect related action to the edit menu; (configure_shortcuts): read the shortcut from the preferences file * main-window.h: include path dialog header, new path variable and new action for dialog * module.mk: add new files * set-path-dialog.cc: new file (set_path_dialog): constructing the dialog with widgets and buttons, connecting all action signals, adding model object; (add_dir): open file dailog to select directory to be added to the path; (rm_dir): call rm_dir method in model object for removing selected dirs; (move_dir_up, move_dir_bottom, move_dir_top, move_dir_bottom): call related model object for moving selected dirs and update selection and view accordingly; * set-path-dialog.h: new header for path dialog * set-path-model.cc: new file for path dialog model (set_path_model): data signal connections and calling construct method; (to_string): make a string from the current list of directories; (model_to_path): set the octave path to the current model data; (clear): clear the current model data; (save): save current model data using savepath; (revert) reset the model data to the state from dialog start; (revert_last): Reset the model data to the state before the latest change; (add_dir): add a directory to the current model data and path; (rm_dir): remoce a directory from current model data and path; (move_dir_up, move_dir_down, move_dir_top, move_dir_bottom): move one ore more directory entries wihtin the path; (rowCount): retiurn the size if the current model data; (data): reimplemeneted method for returning data from the model; (construct): loading the current path into the model; (update_data): slot for update data signal * set-path-model.h: model header file * shortcut-manager.cc (do_init_data): initialize shortcut for path dialog with empty key sequence

/*

Copyright (C) 2019 JunWang

This file is part of Octave.

Octave 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.

Octave 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 Octave; see the file COPYING.  If not, see
<https://www.gnu.org/licenses/>.

*/

#if ! defined (octave_set_path_model_h)
#define octave_set_path_model_h 1

#include <QAbstractListModel>
#include <QStringList>
#include <QList>
#include <QFileInfo>
#include <QIcon>

namespace octave
{
  class set_path_model : public QAbstractListModel
  {
    Q_OBJECT

  public:

    set_path_model (QObject *p = nullptr);

    ~set_path_model (void) = default;

    void clear (void);

    void add_dir (const QString& p);

    void rm_dir (const QModelIndexList& indices);

    void move_dir_up (const QModelIndexList& indices);

    void move_dir_down (const QModelIndexList& indices);

    void move_dir_top (const QModelIndexList& indices);

    void move_dir_bottom (const QModelIndexList& indices);

    std::string to_string (void);

    // Overloaded Qt methods

    void model_to_path (void);

    int rowCount (const QModelIndex& p = QModelIndex ()) const;

    QVariant data (const QModelIndex& idx, int role) const;

  public slots:

    void save (void);

    void revert (void);

    void revert_last (void);

  signals:

    void update_data_signal (const QStringList& dirs);

  private slots:

    void update_data (const QStringList& dirs);

  private:

    void construct (void);

    QStringList m_dirs;

    QStringList m_orig_dirs;

    QStringList m_last_dirs;
  };
}

#endif