Add Bonsai decorators toggle to Blender Viewport Overlays.

https://imgur.com/auQcp2Y

src/bonsai/bonsai/bim/__init__.py

@@ -191,6 +191,7 @@ classes = [
     # TODO: move this somewhere else and clean it up
     ui.BIM_PT_section_plane,
     ui.BIM_PT_section_with_cappings,
+    ui.BIM_PT_decorators_overlay,
 ]
 
 for mod in modules.values():

src/bonsai/bonsai/bim/module/model/prop.py

@@ -25,6 +25,7 @@ from bonsai.bim.prop import ObjProperty
 from bonsai.bim.module.model.data import AuthoringData
 from bpy.types import PropertyGroup, NodeTree
 from math import pi, radians
+from bonsai.bim.module.model.decorator import WallAxisDecorator, SlabDirectionDecorator
 
 
 def get_ifc_class(self, context):
@@ -82,6 +83,20 @@ def is_object_array_applicable(self, obj):
     return ifcopenshell.util.element.get_pset(element, "BBIM_Array")
 
 
+def update_wall_axis_decorator(self, context):
+    if self.show_wall_axis:
+        WallAxisDecorator.install(bpy.context)
+    else:
+        WallAxisDecorator.uninstall()
+
+
+def update_slab_direction_decorator(self, context):
+    if self.show_slab_direction:
+        SlabDirectionDecorator.install(bpy.context)
+    else:
+        SlabDirectionDecorator.uninstall()
+
+
 class BIMModelProperties(PropertyGroup):
     ifc_class: bpy.props.EnumProperty(items=get_ifc_class, name="Construction Class", update=update_ifc_class)
     relating_type_id: bpy.props.EnumProperty(
@@ -162,6 +177,16 @@ class BIMModelProperties(PropertyGroup):
         description="It's a convention that affects the offset to reference line",
     )
     offset: bpy.props.FloatProperty(name="Offset", default=0.0, description="Material usage offset from reference line")
+    show_wall_axis: bpy.props.BoolProperty(
+        name="Show Wall Axis",
+        default=False,
+        update=update_wall_axis_decorator,
+    )
+    show_slab_direction: bpy.props.BoolProperty(
+        name="Show Slab Direction",
+        default=False,
+        update=update_slab_direction_decorator,
+    )
 
 
 class BIMArrayProperties(PropertyGroup):

src/bonsai/bonsai/bim/ui.py

@@ -1190,3 +1190,37 @@ def draw_custom_context_menu(self: bpy.types.Menu, context: bpy.types.Context) -
                 layout.separator()
                 url_op = layout.operator("bim.open_uri", icon="URL", text="Online IFC Documentation")
                 url_op.uri = url
+
+class BIM_PT_decorators_overlay(Panel):
+    bl_space_type = 'VIEW_3D'
+    bl_region_type = 'HEADER'
+    bl_parent_id = 'VIEW3D_PT_overlay'
+    bl_label = "Bonsai Decorators"
+
+    @classmethod
+    def poll(cls, context):
+        return context.mode == 'OBJECT'
+
+    def draw(self, context):
+        layout = self.layout
+
+        view = context.space_data
+        overlay = view.overlay
+
+        geo_props = bpy.context.scene.BIMGeoreferenceProperties
+        agg_props = bpy.context.scene.BIMAggregateProperties
+        model_props = bpy.context.scene.BIMModelProperties
+        display_all = overlay.show_overlays
+
+        col = layout.column()
+        col.active = display_all
+
+        row = col.row(align=True)
+        row.prop(geo_props, "should_visualise", text="Georeference")
+        row.prop(geo_props, "visualization_scale", text="Size", slider=True)
+        row = col.row(align=True)
+        row.prop(agg_props, "aggregate_decorator", text="Aggregate")
+        row = col.row(align=True)
+        row.prop(model_props, "show_wall_axis", text="Wall Axis")
+        row = col.row(align=True)
+        row.prop(model_props, "show_slab_direction", text="Slab Direction")