Translation Updates.

- Added addon_preferences so we can save users preferences into a json file.
- Made translation slightly simpler

This mostly works just have to figure out why we can't update description on reload (There only update on blender restart).

__init__.py

@@ -6,12 +6,14 @@ if "bpy" not in locals():
     from .core import register
     from .core.register import __bl_ordered_classes
     from .core import properties
+    from .core import addon_preferences
 else:
     import importlib
     importlib.reload(ui)
     importlib.reload(core)
     importlib.reload(functions)
     importlib.reload(properties)
+    importlib.reload(addon_preferences)
 
 def register():
     print("Registering Avatar Toolkit")
@@ -26,18 +28,16 @@ def register():
     # Register the properties
     core.register.register_properties()
     # Register the UI classes
-    for cls in core.register.__bl_ordered_classes:
-        print("registering " + str(cls))
+    for cls in __bl_ordered_classes:
+        print("registering" + str(cls))
         bpy.utils.register_class(cls)   
 
-
-
 def unregister():
     print("Unregistering Avatar Toolkit")
     # Unregister the UI classes
 
     # Iterate over the classes to unregister in reverse order and unregister them
-    for cls in reversed(core.register.__bl_ordered_classes):
+    for cls in reversed(list(__bl_ordered_classes)):
         bpy.utils.unregister_class(cls)
         print("unregistering " + str(cls))
     core.register.unregister_properties()

core/addon_preferences.py

@@ -0,0 +1,43 @@
+import bpy
+import os
+import json
+from bpy.types import AddonPreferences
+from typing import Any, Dict
+
+# Get the directory of the current file
+PREFERENCES_DIR = os.path.dirname(os.path.abspath(__file__))
+PREFERENCES_FILE = os.path.join(PREFERENCES_DIR, "preferences.json")
+
+def save_preference(key: str, value: Any) -> None:
+    """Save a single preference to the JSON file."""
+    prefs = load_preferences()
+    prefs[key] = value
+    with open(PREFERENCES_FILE, 'w') as f:
+        json.dump(prefs, f, indent=4)
+
+def load_preferences() -> Dict[str, Any]:
+    """Load all preferences from the JSON file."""
+    if os.path.exists(PREFERENCES_FILE):
+        with open(PREFERENCES_FILE, 'r') as f:
+            return json.load(f)
+    return {}
+
+def get_preference(key: str, default: Any = None) -> Any:
+    """Get a single preference from the JSON file."""
+    prefs = load_preferences()
+    return prefs.get(key, default)
+
+class AvatarToolkitPreferences(AddonPreferences):
+    bl_idname = __package__.rsplit('.', 1)[0]
+
+    def draw(self, context):
+        layout = self.layout
+        layout.label(text="Preferences are managed internally.")
+        # You can add more UI elements here if needed
+
+def get_addon_preferences(context):
+    return context.preferences.addons[AvatarToolkitPreferences.bl_idname].preferences
+
+# Initialize preferences if the file doesn't exist
+if not os.path.exists(PREFERENCES_FILE):
+    save_preference("language", 0)  # Set default language to 0 (auto)

core/properties.py

@@ -1,16 +1,18 @@
 import bpy
-from ..functions.translations import t, get_languages_list, update_ui
-from ..core.register import register_property
-from typing import Tuple
+from ..functions.translations import t, get_languages_list, update_language
+from ..core.addon_preferences import get_preference
 
 def register():
-    register_property((bpy.types.Scene, "avatar_toolkit_language", bpy.props.EnumProperty(
-        name=t("Settings.language.label"),
-        description=t("Settings.language.desc"),
+    default_language = get_preference("language", 0)
+    
+    bpy.types.Scene.avatar_toolkit_language = bpy.props.EnumProperty(
+        name=t("Settings.language.label", "Language"),
+        description=t("Settings.language.desc", "Select the language for the addon"),
         items=get_languages_list,
-        default=0,
-        update=update_ui
-    )))
+        default=default_language,
+        update=update_language
+    )
 
 def unregister():
-    pass
+    if hasattr(bpy.types.Scene, "avatar_toolkit_language"):
+        del bpy.types.Scene.avatar_toolkit_language

core/register.py

@@ -1,5 +1,5 @@
 import bpy
-import typing
+from typing import List, Type
 
 # List to store the classes to register
 __bl_classes = []
@@ -21,7 +21,10 @@ def register_property(prop):
 
 def register_properties():
     for prop in __bl_props:
-        setattr(prop[0], prop[1], prop[2])
+        if isinstance(prop[2], bpy.props._PropertyDeferred):
+            setattr(prop[0], prop[1], prop[2])
+        else:
+            prop() 
             
 def unregister_properties():
     for prop in reversed(__bl_props):

functions/translations.py

@@ -2,20 +2,24 @@ import os
 import json
 import bpy
 from bpy.app.translations import locale
-from ..core.register import register_wrap
 from typing import Dict, List, Tuple
+from ..core.addon_preferences import save_preference, get_preference
 
-main_dir: str = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-resources_dir: str = os.path.join(main_dir, "resources")
-translations_dir: str = os.path.join(resources_dir, "translations")
+# Use __file__ to get the current file's directory
+current_dir = os.path.dirname(os.path.abspath(__file__))
+main_dir = os.path.dirname(current_dir)
+resources_dir = os.path.join(main_dir, "resources")
+translations_dir = os.path.join(resources_dir, "translations")
 
 dictionary: Dict[str, str] = dict()
 languages: List[str] = []
 verbose: bool = True
 
-def load_translations() -> None:
+def load_translations() -> bool:
     global dictionary, languages
 
+    old_dictionary = dictionary.copy()
+
     dictionary = dict()
     languages = ["auto"]
 
@@ -25,68 +29,67 @@ def load_translations() -> None:
         if lang != "auto":
             languages.append(lang)
 
-    # Check if the context and scene are available
-    if hasattr(bpy.context, "scene"):
-        # Check if the property exists before trying to access it
-        if hasattr(bpy.context.scene, "avatar_toolkit_language"):
-            language_index = bpy.context.scene.avatar_toolkit_language
-            if isinstance(language_index, str):
-                language_index = int(language_index)
-            if language_index == 0:  # "auto"
-                language = bpy.context.preferences.view.language
-            else:
-                language = languages[language_index]
-        else:
-            language = bpy.context.preferences.view.language
+    language_index = get_preference("language", 0)
+    print(f"Loading translations for language index: {language_index}")  # Debug print
+
+    if language_index == 0:  # "auto"
+        language = bpy.context.preferences.view.language
     else:
-        # Set a default language if the context or scene is not available
-        language = "en_US"
+        try:
+            language = languages[language_index]
+        except IndexError:
+            language = bpy.context.preferences.view.language
+
+    print(f"Selected language: {language}")  # Debug print
 
     translation_file: str = os.path.join(translations_dir, language + ".json")
     if os.path.exists(translation_file):
         with open(translation_file, 'r', encoding='utf-8') as file:
             dictionary = json.load(file)["messages"]
+        print(f"Loaded translations: {dictionary}")  # Debug print
     else:
         custom_language: str = language.split("_")[0]
         custom_translation_file: str = os.path.join(translations_dir, custom_language + ".json")
         if os.path.exists(custom_translation_file):
             with open(custom_translation_file, 'r', encoding='utf-8') as file:
                 dictionary = json.load(file)["messages"]
+            print(f"Loaded custom translations: {dictionary}")  # Debug print
         else:
             print(f"Translation file not found for language: {language}")
             default_file: str = os.path.join(translations_dir, "en_US.json")
             if os.path.exists(default_file):
                 with open(default_file, 'r', encoding='utf-8') as file:
                     dictionary = json.load(file)["messages"]
+                print(f"Loaded default translations: {dictionary}")  # Debug print
             else:
                 print("Default translation file 'en_US.json' not found.")
 
-def t(phrase: str, *args, **kwargs) -> str:
+    return dictionary != old_dictionary
+
+def t(phrase: str, default: str = None) -> str:
     output: str = dictionary.get(phrase)
     if output is None:
         if verbose:
-            print('Warning: Unknown phrase: ' + phrase)
-        return phrase
-    return output.format(*args, **kwargs)
+            print(f'Warning: Unknown phrase: {phrase}')
+        return default if default is not None else phrase
+    print(f"Translating '{phrase}' to '{output}'")  # Debug print
+    return output
+
+def get_language_display_name(lang: str) -> str:
+    if lang == "auto":
+        return t("Language.auto", "Automatic")
+    return t(f"Language.{lang}", lang)
 
 def get_languages_list(self, context) -> List[Tuple[str, str, str]]:
-    return [(str(i), lang, f"Use {lang} language") for i, lang in enumerate(languages)]
+    return [(str(i), get_language_display_name(lang), f"Use {lang} language") for i, lang in enumerate(languages)]
 
-def refresh_translations():
+def update_language(self, context):
+    print(f"Updating language to: {self.avatar_toolkit_language}")  # Debug print
+    save_preference("language", int(self.avatar_toolkit_language))
     load_translations()
-    # Force a full UI update
-    for window in bpy.context.window_manager.windows:
-        for area in window.screen.areas:
-            area.tag_redraw()
-
-def update_ui(self, context):
-    refresh_translations()
-    # Force Blender to redraw all UI elements
-    for screen in bpy.data.screens:
-        for area in screen.areas:
-            area.tag_redraw()
-    # Update the Scene to trigger a full UI refresh
-    bpy.context.scene.update_tag()
+    # Reload the addon
+    bpy.ops.script.reload()
 
 # Initial load of translations
+print("Performing initial load of translations")  # Debug print
 load_translations()

resources/translations/en_US.json

@@ -1,5 +1,8 @@
 {
     "messages": {
+      "Language.auto": "Automatic",
+      "Language.en_US": "English",
+      "Language.ja_JP": "日本語",
       "Quick_Access.label": "Quick Access",
       "Quick_Access.import_export.label": "Import/Export",
       "Quick_Access.options": "Quick Access Options",

resources/translations/ja_JP.json

@@ -1,5 +1,8 @@
 {
   "messages": {
+    "Language.auto": "Automatic",
+    "Language.en_US": "English",
+    "Language.ja_JP": "日本語",
     "Quick_Access.label": "クイックアクセス",
     "Quick_Access.import_export.label": "インポート/エクスポート",
     "Quick_Access.options": "クイックアクセスオプション",