load used glyphs on file load

__init__.py

@@ -1418,6 +1418,18 @@ def detect_text():
                 a = test_availability(o["font_name"], o["face_name"], o["text"]) 
                 butils.transfer_blender_object_to_text_properties(o, t)
 
+def load_used_glyphs():
+    print("LOAD USED GLYPHS")
+    scene = bpy.context.scene
+    abc3d_data = scene.abc3d_data
+    for t in abc3d_data.available_texts:
+        a = Font.test_availability(t.font_name,
+                                   t.face_name,
+                                   t.text)
+        if len(a["maybe"]) > 0:
+            for fp in a["filepaths"]:
+                butils.load_font_from_filepath(fp, a["maybe"])
+
 
 @persistent
 def load_handler(self, dummy):
@@ -1425,6 +1437,7 @@ def load_handler(self, dummy):
         bpy.app.timers.register(butils.execute_queued_functions)
         butils.run_in_main_thread(butils.update_available_fonts)
         butils.run_in_main_thread(bpy.ops.abc3d.load_installed_fonts)
+        butils.run_in_main_thread(load_used_glyphs)
 
 def load_handler_unload():
     if bpy.app.timers.is_registered(butils.execute_queued_functions):

common/Font.py

@@ -234,13 +234,14 @@ def test_availability(font_name, face_name, text):
         return MISSING_FONT
     if fonts[font_name].faces.get(face_name) == None:
         return MISSING_FACE
-    loaded, missing, maybe = test_glyphs_availability(font_name,
+    loaded, missing, maybe, filepaths = test_glyphs_availability(font_name,
                                                       face_name,
                                                       text)
     return {
             "loaded": loaded,
             "missing": missing,
             "maybe": maybe,
+            "filepaths": filepaths,
             }