use prefix for custom properties

__init__.py

@@ -372,7 +372,7 @@ class ABC3D_PT_TextManagement(bpy.types.Panel):
                     continue
                 remove_me = True
                 for c in t.text_object.children:
-                    if len(c.users_collection) > 0 and (c.get('linked_textobject')) != type(None) and c.get('linked_textobject') == t.text_id:
+                    if len(c.users_collection) > 0 and (c.get(f"{utils.prefix()}_linked_textobject")) != type(None) and c.get(f"{utils.prefix()}_linked_textobject") == t.text_id:
                         remove_me = False
                         # not sure how to solve this reliably atm,
                         # we need to reassign the glyph, but also get the proper properties from glyph_properties
@@ -394,6 +394,14 @@ class ABC3D_PT_TextManagement(bpy.types.Panel):
                     remove_list.append(i)
 
             for i in remove_list:
+                if type(abc3d_data.available_texts[i].text_object) != type(None):
+                    del mom[f"{utils.prefix()}_linked_textobject"]
+                    del mom[f"{utils.prefix()}_font_name"]
+                    del mom[f"{utils.prefix()}_face_name"]
+                    del mom[f"{utils.prefix()}_font_size"]
+                    del mom[f"{utils.prefix()}_letter_spacing"]
+                    del mom[f"{utils.prefix()}_orientation"]
+                    del mom[f"{utils.prefix()}_translation"]
                 abc3d_data.available_texts.remove(i)
 
             for i, t in enumerate(abc3d_data.available_texts):
@@ -531,7 +539,13 @@ class ABC3D_OT_LoadInstalledFonts(bpy.types.Operator):
         scene = bpy.context.scene
 
         butils.load_installed_fonts()
+        butils.ShowMessageBox("Loading Fonts",
+                              'INFO',
+                              "Updating Data Structures.")
         butils.update_available_fonts()
+        butils.ShowMessageBox("Loading Fonts",
+                              'INFO',
+                              "Done loading installed fonts.")
 
         return {'FINISHED'}
 
@@ -612,6 +626,20 @@ class ABC3D_OT_PlaceText(bpy.types.Operator):
     bl_label = "Place Text"
     bl_options = {'REGISTER', 'UNDO'}
 
+            # t.font_name = font_name
+            # t.face_name = face_name
+            # t.text_object = selected
+            # t.text = scene.abc3d.text
+            # t.letter_spacing = scene.abc3d.letter_spacing
+            # t.font_size = scene.abc3d.font_size
+            # t.translation = scene.abc3d.translation
+            # t.orientation = scene.abc3d.orientation
+            # t.distribution_type = distribution_type
+
+    # def invoke(self, context, event):
+        # wm = context.window_manager
+        # return wm.invoke_props_dialog(self)
+
     def execute(self, context):
         global shared
         scene = bpy.context.scene

butils.py

@@ -407,7 +407,6 @@ def load_font_from_filepath(filepath):
         o_exists = True
         try:
             o, o.name
-            
         except ReferenceError as e:
             o_exists = False
         if o_exists and o.name not in allObjectsBefore:
@@ -449,10 +448,13 @@ def load_font_from_filepath(filepath):
                     # f.font_name = font_name
                     # f.face_name = face_name
                     # print(f"{__name__} added {font_name} {face_name}")
-            else:
+            elif o_exists:
                 remove_list.append(o)
     for o in remove_list:
-        bpy.data.objects.remove(o, do_unlink=True)
+        try:
+            bpy.data.objects.remove(o, do_unlink=True)
+        except ReferenceError as e:
+            print(f"{__name__} could not remove object, because it doesn't exist")
     print(f"{__name__}: loaded font from {filepath}")
     update_available_fonts()
 
@@ -600,8 +602,8 @@ def set_text_on_curve(text_properties):
             regenerate = True
         elif len(text_properties.text) > i and g.glyph_id != text_properties.text[i]:
             regenerate = True
-        elif len(text_properties.text) > i and (g.glyph_object['font_name'] != text_properties.font_name
+        elif len(text_properties.text) > i and (g.glyph_object[f"{utils.prefix()}_font_name"] != text_properties.font_name
-                                              or g.glyph_object['face_name'] != text_properties.face_name):
+                                              or g.glyph_object[f"{utils.prefix()}_face_name"] != text_properties.face_name):
             regenerate = True
 
     if len(text_properties.text) != len(text_properties.glyphs):
@@ -660,9 +662,9 @@ def set_text_on_curve(text_properties):
         ob = None
         if regenerate:
             ob = bpy.data.objects.new(f"{glyph_id}", glyph.data)
-            ob['linked_textobject'] = text_properties.text_id
+            ob[f"{utils.prefix()}_linked_textobject"] = text_properties.text_id
-            ob['font_name'] = text_properties.font_name
+            ob[f"{utils.prefix()}_font_name"] = text_properties.font_name
-            ob['face_name'] = text_properties.face_name
+            ob[f"{utils.prefix()}_face_name"] = text_properties.face_name
         else:
             ob = text_properties.glyphs[i].glyph_object
 
@@ -732,6 +734,13 @@ def set_text_on_curve(text_properties):
     
     if regenerate:
         mom.select_set(True)
+        mom[f"{utils.prefix()}_linked_textobject"] = text_properties.text_id
+        mom[f"{utils.prefix()}_font_name"] = text_properties.font_name
+        mom[f"{utils.prefix()}_face_name"] = text_properties.face_name
+        mom[f"{utils.prefix()}_font_size"] = text_properties.font_size
+        mom[f"{utils.prefix()}_letter_spacing"] = text_properties.letter_spacing
+        mom[f"{utils.prefix()}_orientation"] = text_properties.orientation
+        mom[f"{utils.prefix()}_translation"] = text_properties.translation
         bpy.context.view_layer.objects.active = mom
         bpy.ops.object.parent_set(type='OBJECT')
 

common/utils.py

@@ -1,3 +1,15 @@
+
+def get_version_major():
+    return 0
+def get_version_minor():
+    return 0
+def get_version_patch():
+    return 1
+def get_version_string():
+    return f"{get_version_major()}.{get_version_minor()}.{get_version_patch}"
+def prefix():
+    return "ABC3D"
+
 import time
 import datetime
 from mathutils import (