Integrate manual drawing references into annotation tool

Adds MANUAL_DRAWING_REFERENCE to the annotation type dropdown.
Selecting it shows a dialog to choose elevation or section and
optionally assign a target drawing before placement. Tags are
protected from regeneration via EPset_Annotation.IsManualDrawingReference.

Generated with the assistance of an AI coding tool.

src/bonsai/bonsai/bim/module/drawing/ui.py

@@ -555,6 +555,16 @@ class BIM_PT_product_assignments(Panel):
 
         assert self.layout
         assert (obj := context.active_object)
+
+        element = tool.Ifc.get_entity(obj)
+        if element and tool.Drawing.is_manual_drawing_reference(element):
+            row = self.layout.row(align=True)
+            row.label(
+                text=ProductAssignmentsData.data["relating_product"] or "No Drawing Assigned", icon="IMAGE_DATA"
+            )
+            row.operator("bim.assign_manual_drawing_reference", icon="GREASEPENCIL", text="")
+            return
+
         props = tool.Drawing.get_object_assigned_product_props(obj)
 
         if props.is_editing_product:

src/bonsai/bonsai/core/drawing.py

@@ -562,28 +562,6 @@ def assign_manual_drawing_reference(
         ifc.run("drawing.assign_product", relating_product=drawing, related_object=element)
 
 
-def add_manual_drawing_reference(
-    ifc: type[tool.Ifc],
-    collector: type[tool.Collector],
-    drawing_tool: type[tool.Drawing],
-    drawing: ifcopenshell.entity_instance,
-    annotation_type: str,
-) -> bpy.types.Object:
-    if annotation_type == "ELEVATION":
-        element = drawing_tool.create_manual_elevation_reference(drawing)
-    else:  # SECTION
-        target_view = drawing_tool.get_drawing_target_view(drawing)
-        context = drawing_tool.get_annotation_context(target_view)
-        if not context:
-            context = drawing_tool.create_annotation_context(target_view, annotation_type)
-        element = drawing_tool.create_manual_section_reference(drawing, context)
-    drawing_tool.set_manual_drawing_reference(element)
-    ifc.run("group.assign_group", group=drawing_tool.get_drawing_group(drawing), products=[element])
-    obj = ifc.get_object(element)
-    collector.assign(obj)
-    return obj
-
-
 def build_schedule(drawing: type[tool.Drawing], schedule: ifcopenshell.entity_instance) -> None:
     drawing.create_svg_schedule(schedule)
     drawing.open_svg(drawing.get_path_with_ext(drawing.get_document_uri(schedule), "svg"))