rigify/operators/action_layers.py

@@ -189,6 +189,19 @@ def is_pose_bone_all_locked(pose_bone: PoseBone) -> bool:
     
     return True
 
+
+def should_skip_bone(bone, pose_bones):
+    """Return True if the bone should not be used (hidden, locked, etc..)"""
+    if bone.hide:
+        return True
+    if bone.name.startswith('VIS_'):
+        # "VIS_*" bones are used for drawing lines, e.g. line connecting knee to IK pole
+        return True
+    if is_pose_bone_all_locked(pose_bones[bone.name]):
+        return True
+    
+    return False
+
 # =============================================
 # Operators
 
@@ -265,13 +278,9 @@ class RIGIFY_OT_display_select_group(bpy.types.Operator):
         coll = context.object.data.collections[self.collection_name]
 
         if self.action == 'TOGGLE_SELECT':
+            pose_bones = context.object.pose.bones
             for bone in coll.bones:
-                if bone.hide:
-                    continue
-                if bone.name.startswith('VIS_'):
-                    # "VIS_*" bones are used for drawing lines, e.g. line connecting knee to IK pole
-                    continue
-                if is_pose_bone_all_locked(context.object.pose.bones[bone.name]):
+                if should_skip_bone(bone, pose_bones):
                     continue
                 bone.select = not bone.select
         elif self.action == 'UNSELECT':
@@ -310,35 +319,39 @@ class RIGIFY_OT_select_bone(bpy.types.Operator):
 class RIGIFY_MT_select_from_group(bpy.types.Menu):
     """Display bones from the active collection in columns"""
     bl_idname = "object.rigify_select_bone_from_group"
-    bl_label = "Select bone from group"
+    bl_label = "Select Bone"
 
-    def draw(self, context):
-        
-        layout = self.layout
-        
-        collection = context.object.data.collections.active
-        layout.label(text=collection.name)
-
-        # we need to know the side of each bone in advance
+    @staticmethod
+    def collect_bone_sides(collection, pose_bones):
         left_bones = []
-        right_bones = []
         mid_bones = []
+        right_bones = []
         
+        digits = ".0123456789"  # used for stripping dot and number from bone names
         for bone in collection.bones:
-            if bone.hide:
-                continue
-            if bone.name.startswith('VIS_'):
-                continue
-            if is_pose_bone_all_locked(context.object.pose.bones[bone.name]):
+            if should_skip_bone(bone, pose_bones):
                 continue
 
-            if bone.name.rstrip(f'.{i for i in range(10)}').endswith('.L'):  # e.g. "*.L", "*.L.015", "*.L.023"
+            if bone.name.rstrip(digits).endswith('.L'):  # e.g. "*.L", "*.L.015", "*.L.023"
                 left_bones.append(bone)
-            elif bone.name.rstrip(f'.{i for i in range(10)}').endswith('.R'):  # e.g. "*.R", "*.R.015", "*.R.023"
+                continue
+            
+            if bone.name.rstrip(digits).endswith('.R'):  # e.g. "*.R", "*.R.015", "*.R.023"
                 right_bones.append(bone)
             else:
                 mid_bones.append(bone)
         
+        return left_bones, mid_bones, right_bones
+
+    def draw(self, context):
+        collection = context.object.data.collections.active
+
+        # we need to know the side of each bone in advance
+        left_bones, mid_bones, right_bones = self.collect_bone_sides(collection, context.object.pose.bones)
+
+        layout = self.layout
+        # layout.label(text=collection.name)
+
         # in case all the bones belong to one side, take all three columns and then bail out.
         # XOR (^) is True if only one or all three lists contain values
         if not all((left_bones, mid_bones, right_bones)) and bool(left_bones) ^ bool(mid_bones) ^ bool(right_bones):