added language selection

app/settings.py

@@ -1,5 +1,6 @@
 import copy
 import json
+import locale
 import os
 from enum import Enum, IntEnum
 from pathlib import Path
@@ -92,7 +93,6 @@ class Settings:
         settings = ext_settings or get_settings()
 
         if self.__VERSION > settings.get("version", 0):
-            write_settings(get_default_settings())
             raise SettingsException("Outdated version of the settings format!")
 
         self._settings = settings
@@ -127,6 +127,10 @@ class Settings:
         if force_write:
             self.save()
 
+    @staticmethod
+    def reset_to_default():
+        write_settings(get_default_settings())
+
     def get_default(self, p_name):
         """ Returns default value for current settings type """
         return self.setting_type.get_default_settings().get(p_name)
@@ -185,6 +189,14 @@ class Settings:
         for k, v in s_type.get_default_settings().items():
             self._cp_settings[k] = v
 
+    @property
+    def language(self):
+        return self._settings.get("language", locale.getlocale()[0] or "en_US")
+
+    @language.setter
+    def language(self, value):
+        self._settings["language"] = value
+
     @property
     def host(self):
         return self._cp_settings.get("host", self.get_default("host"))

app/ui/main_app_window.py

@@ -2123,6 +2123,7 @@ def start_app():
     except SettingsException as e:
         msg = "{} \n{}".format(e, "All setting were reset. Restart the program!")
         show_dialog(DialogType.INFO, transient=Gtk.Dialog(), text=msg)
+        Settings.reset_to_default()
     else:
         app = Application()
         app.run(sys.argv)

app/ui/settings_dialog.glade

@@ -1090,6 +1090,72 @@ Author: Dmitriy Yefremov
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="orientation">vertical</property>
+                    <child>
+                      <object class="GtkFrame" id="lang_frame">
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <property name="margin_left">5</property>
+                        <property name="margin_right">5</property>
+                        <property name="margin_top">5</property>
+                        <property name="margin_bottom">5</property>
+                        <property name="label_xalign">0</property>
+                        <property name="shadow_type">in</property>
+                        <child>
+                          <object class="GtkBox" id="lang_box">
+                            <property name="visible">True</property>
+                            <property name="can_focus">False</property>
+                            <property name="margin_left">5</property>
+                            <property name="margin_right">5</property>
+                            <property name="margin_top">5</property>
+                            <property name="margin_bottom">5</property>
+                            <child>
+                              <object class="GtkLabel" id="lang_label">
+                                <property name="visible">True</property>
+                                <property name="can_focus">False</property>
+                                <property name="label" translatable="yes">Language:</property>
+                              </object>
+                              <packing>
+                                <property name="expand">False</property>
+                                <property name="fill">True</property>
+                                <property name="position">0</property>
+                              </packing>
+                            </child>
+                            <child>
+                              <object class="GtkComboBoxText" id="lang_combo_box">
+                                <property name="width_request">150</property>
+                                <property name="visible">True</property>
+                                <property name="can_focus">False</property>
+                                <property name="focus_on_click">False</property>
+                                <property name="active">0</property>
+                                <items>
+                                  <item id="en_US" translatable="yes">English</item>
+                                  <item id="de_DE" translatable="yes">Deutsch</item>
+                                  <item id="es_ES" translatable="yes">Español</item>
+                                  <item id="nl_NL" translatable="yes">Nederlands</item>
+                                  <item id="pt_PT" translatable="yes">Português</item>
+                                  <item id="ru_RU" translatable="yes">Русский</item>
+                                </items>
+                                <signal name="changed" handler="on_lang_changed" swapped="no"/>
+                              </object>
+                              <packing>
+                                <property name="expand">False</property>
+                                <property name="fill">True</property>
+                                <property name="pack_type">end</property>
+                                <property name="position">1</property>
+                              </packing>
+                            </child>
+                          </object>
+                        </child>
+                        <child type="label_item">
+                          <placeholder/>
+                        </child>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">True</property>
+                        <property name="position">0</property>
+                      </packing>
+                    </child>
                     <child>
                       <object class="GtkFrame" id="settings_type_frame">
                         <property name="visible">True</property>
@@ -1175,7 +1241,7 @@ Author: Dmitriy Yefremov
                       <packing>
                         <property name="expand">False</property>
                         <property name="fill">True</property>
-                        <property name="position">0</property>
+                        <property name="position">1</property>
                       </packing>
                     </child>
                     <child>
@@ -1312,7 +1378,7 @@ Author: Dmitriy Yefremov
                       <packing>
                         <property name="expand">False</property>
                         <property name="fill">True</property>
-                        <property name="position">1</property>
+                        <property name="position">2</property>
                       </packing>
                     </child>
                     <child>
@@ -1394,7 +1460,7 @@ Author: Dmitriy Yefremov
                       <packing>
                         <property name="expand">False</property>
                         <property name="fill">True</property>
-                        <property name="position">2</property>
+                        <property name="position">3</property>
                       </packing>
                     </child>
                   </object>

app/ui/settings_dialog.py

@@ -41,7 +41,8 @@ class SettingsDialog:
                     "on_profile_inserted": self.on_profile_inserted,
                     "on_profile_edited": self.on_profile_edited,
                     "on_profile_selected": self.on_profile_selected,
-                    "on_profile_set_default": self.on_profile_set_default}
+                    "on_profile_set_default": self.on_profile_set_default,
+                    "on_lang_changed": self.on_lang_changed}
 
         builder = Gtk.Builder()
         builder.add_from_file(UI_RESOURCES_PATH + "settings_dialog.glade")
@@ -104,6 +105,8 @@ class SettingsDialog:
         self._profile_view = builder.get_object("profile_tree_view")
         self._profile_add_button = builder.get_object("profile_add_button")
         self._profile_remove_button = builder.get_object("profile_remove_button")
+        # Language
+        self._lang_combo_box = builder.get_object("lang_combo_box")
         # Settings
         self._settings = settings
         self._profiles = self._settings.profiles
@@ -122,6 +125,7 @@ class SettingsDialog:
         self._extra_support_grid.set_sensitive(is_enigma_profile)
         http_active = self._support_http_api_switch.get_active()
         self._click_mode_zap_button.set_sensitive(is_enigma_profile and http_active)
+        self._lang_combo_box.set_active_id(self._settings.language)
         self.on_info_bar_close() if is_enigma_profile else self.show_info_message(
             "The Neutrino has only experimental support. Not all features are supported!", Gtk.MessageType.WARNING)
 
@@ -226,6 +230,7 @@ class SettingsDialog:
         self._settings.backup_before_save = self._before_save_switch.get_active()
         self._settings.backup_before_downloading = self._before_downloading_switch.get_active()
         self._settings.fav_click_mode = self.get_fav_click_mode()
+        self._settings.language = self._lang_combo_box.get_active_id()
 
         if self._s_type is SettingsType.ENIGMA_2:
             self._settings.use_colors = self._set_color_switch.get_active()
@@ -339,6 +344,7 @@ class SettingsDialog:
             is_default = row[1]
             self._profiles.pop(row[0], None)
             del model[paths]
+
             if is_default:
                 model.set_value(model.get_iter_first(), 1, DEFAULT_ICON)
 
@@ -361,21 +367,24 @@ class SettingsDialog:
             self.update_local_paths(new_value)
         self.on_profile_selected(self._profile_view)
 
-    def update_local_paths(self, profile_name):
+    def update_local_paths(self, p_name):
         data_path = self._settings.data_local_path
-        self._settings.data_local_path = "{}/{}/".format(Path(data_path).parent, profile_name)
-        if os.path.isdir(data_path):
-            os.rename(data_path, self._settings.data_local_path)
-
         picons_path = self._settings.picons_local_path
-        self._settings.picons_local_path = "{}/{}/".format(Path(picons_path).parent, profile_name)
+        backup_path = self._settings.backup_local_path
+
+        try:
             if os.path.isdir(picons_path):
                 os.rename(picons_path, self._settings.picons_local_path)
-
+            if os.path.isdir(data_path):
-        backup_path = self._settings.backup_local_path
+                os.rename(data_path, self._settings.data_local_path)
-        self._settings.backup_local_path = "{}/{}/".format(Path(self._settings.backup_local_path).parent, profile_name)
             if os.path.isdir(backup_path):
                 os.rename(backup_path, self._settings.backup_local_path)
+        except OSError as e:
+            self.show_info_message(str(e), Gtk.MessageType.ERROR)
+        else:
+            self._settings.data_local_path = "{}/{}/".format(Path(data_path).parent, p_name)
+            self._settings.picons_local_path = "{}/{}/".format(Path(picons_path).parent, p_name)
+            self._settings.backup_local_path = "{}/{}/".format(Path(self._settings.backup_local_path).parent, p_name)
 
     def on_profile_selected(self, view):
         model, paths = self._profile_view.get_selection().get_selected_rows()
@@ -395,6 +404,10 @@ class SettingsDialog:
     def on_profile_inserted(self, model, path, itr):
         self._profile_remove_button.set_sensitive(len(model) > 1)
 
+    def on_lang_changed(self, box):
+        if box.get_active_id() != self._settings.language:
+            self.show_info_message("Save and restart the program to apply the settings.", Gtk.MessageType.WARNING)
+
     @run_idle
     def set_fav_click_mode(self, mode):
         mode = FavClickMode(mode)

app/ui/uicommons.py

@@ -1,9 +1,9 @@
 import locale
 import os
+from enum import Enum, IntEnum
+from app.settings import Settings, SettingsException
 
 import gi
-from enum import Enum, IntEnum
-
 gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk, Gdk
 
@@ -11,11 +11,15 @@ from gi.repository import Gtk, Gdk
 UI_RESOURCES_PATH = "app/ui/" if os.path.exists("app/ui/") else "/usr/share/demoneditor/app/ui/"
 
 IS_GNOME_SESSION = int(bool(os.environ.get("GNOME_DESKTOP_SESSION_ID")))
-
 # translation
 TEXT_DOMAIN = "demon-editor"
+try:
+    settings = Settings.get_instance()
+except SettingsException:
+    pass
+else:
+    os.environ["LANGUAGE"] = settings.language
     if UI_RESOURCES_PATH == "app/ui/":
-    LANG_DIR = UI_RESOURCES_PATH + "lang"
         locale.bindtextdomain(TEXT_DOMAIN, UI_RESOURCES_PATH + "lang")
 
 theme = Gtk.IconTheme.get_default()