[fix] deletion fixes+

and some smaller cosmetic changes

__init__.py

@@ -336,7 +336,7 @@ class ABC3D_UL_texts(bpy.types.UIList):
 
 
 class ABC3D_PT_Panel(bpy.types.Panel):
-    bl_label = f"{__name__} panel"
+    bl_label = f"{utils.prefix()} Panel"
     bl_category = "ABC3D"
     bl_space_type = "VIEW_3D"
     bl_region_type = "UI"
@@ -344,6 +344,9 @@ class ABC3D_PT_Panel(bpy.types.Panel):
     def draw(self, context):
         layout = self.layout
 
+        row = layout.row()
+        row.label(text=f"{utils.prefix()} v{utils.get_version_string()}")
+
         icon = "NONE"
         if len(context.scene.abc3d_data.available_fonts) == 0:
             icon = "ERROR"
@@ -439,11 +442,9 @@ class ABC3D_PT_FontList(bpy.types.Panel):
         row = box.row()
         row.label(text="File and Memory optimization")
         row = box.row()
-        row.operator(f"{__name__}.refresh_fonts", text="Refresh Font list from disk")
+        row.operator(f"{__name__}.refresh_fonts", text="Refresh font list from disk")
         row = box.row()
-        row.operator(
+        row.operator(f"{__name__}.unload_unused_glyphs", text="Unload unused glyphs")
-            f"{__name__}.unload_unused_glyphs", text="Unload unused glyphs from memory"
-        )
 
 
 class ABC3D_PT_TextPlacement(bpy.types.Panel):
@@ -1013,7 +1014,6 @@ class ABC3D_OT_LoadInstalledFonts(bpy.types.Operator):
         return context.window_manager.invoke_props_dialog(self)
 
     def execute(self, context):
-        print("EXECUTE LOAD INSTALLED FONTS")
         scene = bpy.context.scene
 
         if self.load_into_memory:
@@ -1234,6 +1234,7 @@ class ABC3D_OT_RemoveText(bpy.types.Operator):
 
     def execute(self, context):
         abc3d_data = context.scene.abc3d_data
+        lock_depsgraph_updates(auto_unlock_s=-1)
         if abc3d_data.active_text_index < 0:
             butils.ShowMessageBox(
                 title="No text selected",
@@ -1269,6 +1270,7 @@ class ABC3D_OT_RemoveText(bpy.types.Operator):
             butils.simply_delete_objects(remove_list)
 
         abc3d_data.available_texts.remove(i)
+        unlock_depsgraph_updates()
 
         return {"FINISHED"}
 
@@ -2033,6 +2035,7 @@ import time
 @persistent
 def on_depsgraph_update(scene, depsgraph):
     if not bpy.context.mode.startswith("EDIT") and not are_depsgraph_updates_locked():
+        lock_depsgraph_updates(auto_unlock_s=-1)
         for u in depsgraph.updates:
             if (
                 butils.get_key("text_id") in u.id.keys()
@@ -2046,12 +2049,17 @@ def on_depsgraph_update(scene, depsgraph):
                     if text_properties.text_object == u.id.original:
                         # nothing to do
                         pass
-                    else:
+                    elif butils.is_text_object_legit(u.id.original):
                         # must be duplicate
                         link_text_object_with_new_text_properties(u.id.original, scene)
-                else:
+                elif (
-                    # must be new thing
+                    butils.is_text_object_legit(u.id.original)
+                    and len(u.id.original.users_collection) > 0
+                ):
+                    # must be a new thing, maybe manually created or so
                     link_text_object_with_new_text_properties(u.id.original, scene)
+                butils.clean_text_properties()
+        unlock_depsgraph_updates()
 
 
 def register():

butils.py

@@ -647,6 +647,17 @@ def is_glyph_used(glyph_alternates):
     return False
 
 
+def clean_text_properties():
+    abc3d_data = bpy.context.scene.abc3d_data
+    remove_these = []
+    for i, text_properties in enumerate(abc3d_data.available_texts):
+        if len(text_properties.text_object.users_collection) <= 0:
+            remove_these.append(i)
+    remove_these.reverse()
+    for i in remove_these:
+        abc3d_data.available_texts.remove(i)
+
+
 def clean_fontcollection(fontcollection=None):
     if fontcollection is None:
         fontcollection = bpy.data.collections.get("ABC3D")
@@ -1336,6 +1347,21 @@ def test_finding():
     transfer_text_object_to_text_properties(o, t)
 
 
+def is_text_object_legit(text_object):
+    must_have_keys = [
+        get_key("font_name"),
+        get_key("face_name"),
+        get_key("text"),
+        get_key("type"),
+    ]
+    for key in must_have_keys:
+        if key not in text_object:
+            return False
+    if text_object[get_key("type")] != "textobject":
+        return False
+    return True
+
+
 # def detect_texts():
 # scene = bpy.context.scene
 # abc3d_data = scene.abc3d_data
@@ -1478,6 +1504,8 @@ def set_text_on_curve(
     mom = text_properties.text_object
     if mom.type != "CURVE":
         return False
+    if len(mom.users_collection) < 1:
+        return False
 
     distribution_type = "CALCULATE" if is_bezier(mom) else "FOLLOW_PATH"
 
@@ -2042,8 +2070,6 @@ def add_default_metrics_to_objects(objects=None, overwrite_existing=False):
     targets = []
     reference_bound_box = None
     for o in objects:
-        if not hasattr(o, "parent"):
-            print(f"{o.name} has not a PARENTNTNTNTNTNNTNTNTNTNTN")
         is_possibly_glyph = is_glyph(o)
         if is_possibly_glyph:
             metrics = []