Deprecate type_class in favour of new simpler type manager workflow

2026-08-13 02:47:48 +00:00 · 2024-09-30 14:03:56 +10:00
parent 2c22421889
commit af7bdf6b9f
9 changed files with 134 additions and 497 deletions
@@ -59,10 +59,8 @@ class AuthoringData:
        cls.data["relating_type_id"] = cls.relating_type_id()  # only after .ifc_classes()
        cls.data["relating_type_name"] = cls.relating_type_name()  # only after .relating_type_id()
        cls.data["predefined_type"] = cls.predefined_type()  # only after .relating_type_id()
-        cls.data["type_class"] = cls.type_class()

-        # only after .type_class()
-        cls.data["type_predefined_type"] = cls.type_predefined_type()
+        # only after .ifc_classes()
        cls.data["total_types"] = cls.total_types()
        cls.data["total_pages"] = cls.total_pages()
        cls.data["next_page"] = cls.next_page()
@@ -78,7 +76,6 @@ class AuthoringData:
        cls.data["active_representation_type"] = cls.active_representation_type()
        cls.data["boundary_class"] = cls.boundary_class()
        cls.data["selected_material_usages"] = cls.selected_material_usages()
-        cls.data["type_template"] = cls.type_template()

    @classmethod
    def default_container(cls) -> str | None:
@@ -97,41 +94,6 @@ class AuthoringData:
        version = tool.Ifc.get_schema()
        return [(c, c, get_entity_doc(version, c).get("description", "")) for c in sorted(names)]

-    @classmethod
-    def type_class(cls):
-        declaration = tool.Ifc.schema().declaration_by_name("IfcElementType")
-        declarations = ifcopenshell.util.schema.get_subtypes(declaration)
-        names = [d.name() for d in declarations]
-
-        if tool.Ifc.get_schema() == "IFC2X3":
-            declaration = tool.Ifc.schema().declaration_by_name("IfcSpatialStructureElementType")
-        else:
-            declaration = tool.Ifc.schema().declaration_by_name("IfcSpatialElementType")
-        declarations = ifcopenshell.util.schema.get_subtypes(declaration)
-        names.extend([d.name() for d in declarations])
-
-        if tool.Ifc.get_schema() in ("IFC2X3", "IFC4"):
-            names.extend(("IfcDoorStyle", "IfcWindowStyle"))
-
-        version = tool.Ifc.get_schema()
-        return [(c, c, get_entity_doc(version, c).get("description", "")) for c in sorted(names)]
-
-    @classmethod
-    def type_predefined_type(cls):
-        results = []
-        declaration = tool.Ifc().schema().declaration_by_name(cls.props.type_class)
-        version = tool.Ifc.get_schema()
-        for attribute in declaration.attributes():
-            if attribute.name() == "PredefinedType":
-                results.extend(
-                    [
-                        (e, e, get_predefined_type_doc(version, cls.props.type_class, e))
-                        for e in attribute.type_of_attribute().declared_type().enumeration_items()
-                    ]
-                )
-                break
-        return results
-
    @classmethod
    def type_thumbnail(cls):
        if not cls.data["relating_type_id"]:
@@ -142,76 +104,15 @@ class AuthoringData:
        element = tool.Ifc.get().by_id(int(relating_type_id))
        return cls.type_thumbnails.get(element.id(), None) or 0

-    @classmethod
-    def type_template(cls):
-        type_class = cls.props.type_class
-        templates = [
-            (
-                "MESH",
-                "Custom Mesh",
-                "Use as a representation currently active object mesh or default cube if no object selected",
-            ),
-            (
-                "LAYERSET_AXIS2",
-                "Vertical Layers",
-                "For objects similar to walls, will automatically add IfcMaterialLayerSet",
-            ),
-            (
-                "LAYERSET_AXIS3",
-                "Horizontal Layers",
-                "For objects similar to slabs, will automatically add IfcMaterialLayerSet",
-            ),
-            (
-                "PROFILESET",
-                "Extruded Profile",
-                "Create profile type object, automatically defines IfcMaterialProfileSet with the first profile from library",
-            ),
-            ("EMPTY", "Non-Geometric Type", "Start with an empty object"),
-        ]
-        if not type_class:
-            pass
-        elif type_class in ("IfcWindowType", "IfcWindowStyle"):
-            templates.append(("WINDOW", "Window", "Parametric window"))
-        elif type_class in ("IfcDoorType", "IfcDoorStyle"):
-            templates.append(("DOOR", "Door", "Parametric door"))
-        elif type_class in ("IfcStairType", "IfcStairFlightType"):
-            templates.append(("STAIR", "Stair", "Parametric stair"))
-        elif type_class == "IfcRailingType":
-            templates.append(("RAILING", "Railing", "Parametric railing"))
-        elif type_class == "IfcRoofType":
-            templates.append(("Roof", "Roof", "Parametric roof"))
-
-        templates.extend(
-            (
-                (
-                    "FLOW_SEGMENT_RECTANGULAR",
-                    "Rectangular Distribution Segment",
-                    "Works similarly to Profile, has distribution ports",
-                ),
-                (
-                    "FLOW_SEGMENT_CIRCULAR",
-                    "Circular Distribution Segment",
-                    "Works similarly to Profile, has distribution ports",
-                ),
-                (
-                    "FLOW_SEGMENT_CIRCULAR_HOLLOW",
-                    "Circular Hollow Distribution Segment",
-                    "Works similarly to Profile, has distribution ports",
-                ),
-            )
-        )
-
-        return templates
-
    @classmethod
    def total_types(cls):
-        type_class = cls.props.type_class
-        return len(tool.Ifc.get().by_type(type_class)) if type_class else 0
+        ifc_class = cls.props.ifc_class
+        return len(tool.Ifc.get().by_type(ifc_class)) if ifc_class else 0

    @classmethod
    def total_pages(cls):
-        type_class = cls.props.type_class
-        total_types = len(tool.Ifc.get().by_type(type_class)) if type_class else 0
+        ifc_class = cls.props.ifc_class
+        total_types = len(tool.Ifc.get().by_type(ifc_class)) if ifc_class else 0
        return math.ceil(total_types / cls.types_per_page)

    @classmethod
@@ -226,11 +127,11 @@ class AuthoringData:

    @classmethod
    def paginated_relating_types(cls):
-        type_class = cls.props.type_class
-        if not type_class:
+        ifc_class = cls.props.ifc_class
+        if not ifc_class:
            return []
        results = []
-        elements = natsorted(tool.Ifc.get().by_type(type_class), key=lambda e: e.Name or "Unnamed")
+        elements = natsorted(tool.Ifc.get().by_type(ifc_class), key=lambda e: e.Name or "Unnamed")
        elements = elements[(cls.props.type_page - 1) * cls.types_per_page : cls.props.type_page * cls.types_per_page]
        for element in elements:
            predefined_type = ifcopenshell.util.element.get_predefined_type(element)
@@ -250,45 +151,50 @@ class AuthoringData:

    @classmethod
    def is_voidable_element(cls):
-        element = tool.Ifc.get_entity(bpy.context.active_object)
-        return element and element.is_a("IfcElement") and not element.is_a("IfcOpeningElement")
+        if active_object := tool.Blender.get_active_object():
+            element = tool.Ifc.get_entity(active_object)
+            return element and element.is_a("IfcElement") and not element.is_a("IfcOpeningElement")

    @classmethod
    def has_visible_openings(cls):
-        element = tool.Ifc.get_entity(bpy.context.active_object)
-        if element and element.is_a("IfcElement") and not element.is_a("IfcOpeningElement"):
-            for opening in [r.RelatedOpeningElement for r in element.HasOpenings]:
-                if tool.Ifc.get_object(opening):
-                    return True
+        if active_object := tool.Blender.get_active_object():
+            element = tool.Ifc.get_entity(active_object)
+            if element and element.is_a("IfcElement") and not element.is_a("IfcOpeningElement"):
+                for opening in [r.RelatedOpeningElement for r in element.HasOpenings]:
+                    if tool.Ifc.get_object(opening):
+                        return True
        return False

    @classmethod
    def has_visible_boundaries(cls):
-        element = tool.Ifc.get_entity(bpy.context.active_object)
-        if element:
-            if element.is_a("IfcRelSpaceBoundary"):
-                return True
-            for boundary in getattr(element, "BoundedBy", []):
-                if tool.Ifc.get_object(boundary):
+        if active_object := tool.Blender.get_active_object():
+            element = tool.Ifc.get_entity(active_object)
+            if element:
+                if element.is_a("IfcRelSpaceBoundary"):
                    return True
+                for boundary in getattr(element, "BoundedBy", []):
+                    if tool.Ifc.get_object(boundary):
+                        return True
        return False

    @classmethod
    def active_class(cls):
-        element = tool.Ifc.get_entity(bpy.context.active_object)
-        if element:
-            return element.is_a()
+        if active_object := tool.Blender.get_active_object():
+            element = tool.Ifc.get_entity(active_object)
+            if element:
+                return element.is_a()

    @classmethod
    def active_material_usage(cls):
-        element = tool.Ifc.get_entity(bpy.context.active_object)
-        if element:
-            return tool.Model.get_usage_type(element)
+        if active_object := tool.Blender.get_active_object():
+            element = tool.Ifc.get_entity(active_object)
+            if element:
+                return tool.Model.get_usage_type(element)

    @classmethod
    def active_representation_type(cls):
-        if bpy.context.active_object:
-            representation = tool.Geometry.get_active_representation(bpy.context.active_object)
+        if active_object := tool.Blender.get_active_object():
+            representation = tool.Geometry.get_active_representation(active_object)
            if representation and representation.is_a("IfcShapeRepresentation"):
                representation = tool.Geometry.resolve_mapped_representation(representation)
                return representation.RepresentationType
@@ -317,7 +223,7 @@ class AuthoringData:
        if not ifc_classes:
            return []
        results = []
-        ifc_class = cls.props.ifc_class
+        ifc_class = tool.Blender.get_enum_safe(cls.props, "ifc_class")
        if not ifc_class and ifc_classes:
            ifc_class = ifc_classes[0][0]
        if ifc_class:
@@ -328,7 +234,11 @@ class AuthoringData:

    @classmethod
    def relating_type_name(cls):
-        if relating_type_id := cls.props.relating_type_id:
+        relating_type_id = tool.Blender.get_enum_safe(cls.props, "relating_type_id")
+        relating_type_id_data = cls.data["relating_type_id"]
+        if not relating_type_id and relating_type_id_data:
+            relating_type_id = relating_type_id_data[0][0]
+        if relating_type_id:
            return tool.Ifc.get().by_id(int(relating_type_id)).Name or "Unnamed"

    @classmethod
@@ -345,7 +255,7 @@ class AuthoringData:
    @classmethod
    def selected_material_usages(cls):
        selected_usages = {}
-        for obj in bpy.context.selected_objects:
+        for obj in tool.Blender.get_selected_objects():
            element = tool.Ifc.get_entity(obj)
            if not element:
                continue
@@ -516,7 +516,7 @@ class MEPGenerator:
                    break

    def create_obstruction_type(self, segment):
-        # code is very similar to "bim.add_type"
+        # code is very similar to "bim.add_element"
        profile_set = ifcopenshell.util.element.get_material(segment, should_skip_usage=True)
        material_profile = profile_set.MaterialProfiles[0]
        profile = material_profile.Profile
@@ -67,37 +67,37 @@ class AddDefaultType(bpy.types.Operator, tool.Ifc.Operator):
    ifc_element_type: bpy.props.StringProperty()

    def _execute(self, context):
-        props = context.scene.BIMModelProperties
-        ifc_file = tool.Ifc.get()
-        props.type_class = self.ifc_element_type
+        props = context.scene.BIMRootProperties
+        props.ifc_product = "IfcElementType"
+        props.ifc_class = self.ifc_element_type
        if self.ifc_element_type == "IfcWallType":
-            if ifc_file.schema == "IFC2X3":
-                props.type_predefined_type = "STANDARD"
+            if tool.Ifc.get().schema == "IFC2X3":
+                props.ifc_predefined_type = "STANDARD"
            else:
-                props.type_predefined_type = "SOLIDWALL"
-            props.type_template = "LAYERSET_AXIS2"
+                props.ifc_predefined_type = "SOLIDWALL"
+            props.representation_template = "LAYERSET_AXIS2"
        elif self.ifc_element_type == "IfcSlabType":
-            props.type_predefined_type = "FLOOR"
-            props.type_template = "LAYERSET_AXIS3"
+            props.ifc_predefined_type = "FLOOR"
+            props.representation_template = "LAYERSET_AXIS3"
        elif self.ifc_element_type == "IfcDoorType":
-            props.type_predefined_type = "DOOR"
-            props.type_template = "DOOR"
+            props.ifc_predefined_type = "DOOR"
+            props.representation_template = "DOOR"
        elif self.ifc_element_type == "IfcWindowType":
-            props.type_predefined_type = "WINDOW"
-            props.type_template = "WINDOW"
+            props.ifc_predefined_type = "WINDOW"
+            props.representation_template = "WINDOW"
        elif self.ifc_element_type == "IfcColumnType":
-            props.type_predefined_type = "COLUMN"
-            props.type_template = "PROFILESET"
+            props.ifc_predefined_type = "COLUMN"
+            props.representation_template = "PROFILESET"
        elif self.ifc_element_type == "IfcBeamType":
-            props.type_predefined_type = "BEAM"
-            props.type_template = "PROFILESET"
+            props.ifc_predefined_type = "BEAM"
+            props.representation_template = "PROFILESET"
        elif self.ifc_element_type == "IfcDuctSegmentType":
-            props.type_predefined_type = "RIGIDSEGMENT"
-            props.type_template = "FLOW_SEGMENT_RECTANGULAR"
+            props.ifc_predefined_type = "RIGIDSEGMENT"
+            props.representation_template = "FLOW_SEGMENT_RECTANGULAR"
        elif self.ifc_element_type == "IfcPipeSegmentType":
-            props.type_predefined_type = "RIGIDSEGMENT"
-            props.type_template = "FLOW_SEGMENT_CIRCULAR"
-        bpy.ops.bim.add_type()
+            props.ifc_predefined_type = "RIGIDSEGMENT"
+            props.representation_template = "FLOW_SEGMENT_CIRCULAR"
+        bpy.ops.bim.add_element()


 class AddOccurrence(bpy.types.Operator, PolylineOperator):
@@ -111,10 +111,6 @@ class AddOccurrence(bpy.types.Operator, PolylineOperator):

    def __init__(self):
        super().__init__()
-        self.relating_type = None
-        relating_type_id = bpy.context.scene.BIMModelProperties.relating_type_id
-        if relating_type_id:
-            self.relating_type = tool.Ifc.get().by_id(int(relating_type_id))

    def create_occurrence(self, context, event):
        if not self.relating_type:
@@ -151,8 +147,20 @@ class AddOccurrence(bpy.types.Operator, PolylineOperator):
            snap_obj.select_set(False)

    def modal(self, context, event):
+        # Ensure state of BIM tool props is valid
+        props = bpy.context.scene.BIMModelProperties
+        relating_type_id = tool.Blender.get_enum_safe(props, "relating_type_id")
+        relating_type_id_data = AuthoringData.data["relating_type_id"]
+        if not relating_type_id and relating_type_id_data:
+            props.relating_type_id = relating_type_id_data[0][0]
+
+        self.relating_type = None
+        relating_type_id = props.relating_type_id
+        if relating_type_id:
+            self.relating_type = tool.Ifc.get().by_id(int(relating_type_id))
+
        if not self.relating_type:
-            self.report({"WARNING"}, "You need to select a wall type.")
+            self.report({"WARNING"}, "You need to select a type.")
            PolylineDecorator.uninstall()
            tool.Blender.update_viewport()
            return {"FINISHED"}
@@ -463,7 +471,7 @@ class ChangeTypePage(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        props = context.scene.BIMModelProperties
-        bpy.ops.bim.load_type_thumbnails(ifc_class=props.type_class, offset=9 * (self.page - 1), limit=9)
+        bpy.ops.bim.load_type_thumbnails(ifc_class=props.ifc_class, offset=9 * (self.page - 1), limit=9)
        props.type_page = self.page
        return {"FINISHED"}

@@ -32,12 +32,6 @@ def get_ifc_class(self, context):
    return AuthoringData.data["ifc_classes"]


-def get_type_class(self, context):
-    if not AuthoringData.is_loaded:
-        AuthoringData.load()
-    return AuthoringData.data["type_class"]
-
-
 def get_boundary_class(self, context):
    if not AuthoringData.is_loaded:
        AuthoringData.load()
@@ -50,18 +44,6 @@ def get_relating_type_id(self, context):
    return AuthoringData.data["relating_type_id"]


-def get_type_predefined_type(self, context):
-    if not AuthoringData.is_loaded:
-        AuthoringData.load()
-    return AuthoringData.data["type_predefined_type"]
-
-
-def get_type_template(self, context):
-    if not AuthoringData.is_loaded:
-        AuthoringData.load()
-    return AuthoringData.data["type_template"]
-
-
 def update_ifc_class(self, context):
    bpy.ops.bim.load_type_thumbnails(ifc_class=self.ifc_class)
    AuthoringData.data["relating_type_id"] = AuthoringData.relating_type_id()
@@ -69,19 +51,11 @@ def update_ifc_class(self, context):
    if tool.Blender.get_enum_safe(self, "relating_type_id") is None:
        self["relating_type_id"] = 0

-
-def update_type_class(self, context):
    AuthoringData.data["total_types"] = AuthoringData.total_types()
    AuthoringData.data["total_pages"] = AuthoringData.total_pages()
    AuthoringData.data["prev_page"] = AuthoringData.prev_page()
    AuthoringData.data["next_page"] = AuthoringData.next_page()
    AuthoringData.data["paginated_relating_types"] = AuthoringData.paginated_relating_types()
-    AuthoringData.data["type_predefined_type"] = AuthoringData.type_predefined_type()
-    AuthoringData.data["type_template"] = AuthoringData.type_template()
-
-    type_class = self.type_class
-    if (type_class, type_class, "") in get_ifc_class(self, context):
-        self.ifc_class = type_class


 def update_relating_type_id(self, context):
@@ -173,9 +147,6 @@ class BIMModelProperties(PropertyGroup):
    rl3: bpy.props.FloatProperty(name="RL", default=1, subtype="DISTANCE", description="Z offset for space calculation")
    x_angle: bpy.props.FloatProperty(name="X Angle", default=0, subtype="ANGLE", min=-pi / 180 * 89, max=pi / 180 * 89)
    type_page: bpy.props.IntProperty(name="Type Page", default=1, update=update_type_page)
-    type_template: bpy.props.EnumProperty(items=get_type_template, name="Type Template", default=0, options=set())
-    type_class: bpy.props.EnumProperty(items=get_type_class, name="IFC Class", update=update_type_class)
-    type_predefined_type: bpy.props.EnumProperty(items=get_type_predefined_type, name="Predefined Type", default=None)
    type_name: bpy.props.StringProperty(name="Name", default="TYPEX")
    boundary_class: bpy.props.EnumProperty(items=get_boundary_class, name="Boundary Class")

@@ -100,7 +100,6 @@ class LaunchTypeManager(bpy.types.Operator):

        # will be None if project has no types
        if ifc_class is not None:
-            props.type_class = ifc_class
            bpy.ops.bim.load_type_thumbnails(ifc_class=ifc_class, offset=0, limit=9)
        return context.window_manager.invoke_props_dialog(
            self, width=550, title="Type Manager", confirm_text="Add Type"
@@ -165,7 +164,7 @@ class LaunchTypeManager(bpy.types.Operator):
            else:
                row = box.row()
                op = box.operator("bim.load_type_thumbnails", text="Load Thumbnails", icon="FILE_REFRESH")
-                op.ifc_class = props.type_class
+                op.ifc_class = props.ifc_class


 class BIM_PT_authoring(Panel):
@@ -20,6 +20,7 @@ import os
 import sys
 import bpy
 import bpy.utils.previews
+import bonsai.bim
 import bonsai.tool as tool
 import bonsai.core.model as core
 from bonsai.bim.module.model.wall import DumbWallJoiner
@@ -339,10 +340,12 @@ class CreateObjectUI:
            )
            cls.layout.label(text=tool_name, icon="TOOL_SETTINGS")

-        cls.draw_type_manager_launcher(context)
-        cls.draw_add_object(context)
-        cls.draw_thumbnail() if context.region.type != "TOOL_HEADER" else cls
-        cls.draw_add_object_parameters(context)
+        if AuthoringData.data["ifc_classes"] and AuthoringData.data["relating_type_id"]:
+            cls.draw_add_object(context)
+            cls.draw_thumbnail() if context.region.type != "TOOL_HEADER" else cls
+            cls.draw_add_object_parameters(context)
+        else:
+            cls.draw_type_manager_launcher(context)

    @classmethod
    def draw_container_info(cls, context):
@@ -355,50 +358,46 @@ class CreateObjectUI:
    @classmethod
    def draw_type_manager_launcher(cls, context):
        row = cls.layout.row(align=True)
-        if not AuthoringData.data["ifc_classes"]:
-            if AuthoringData.data["ifc_element_type"]:
-                row.label(text=f"No {AuthoringData.data['ifc_element_type']} Found", icon="ERROR")
-                row = cls.layout.row(align=True)
-                op = row.operator(
-                    "bim.add_default_type",
-                    icon_value=custom_icon_previews["ADD_TYPE"].icon_id,
-                    text=f"Create default {AuthoringData.data['ifc_element_type']}",
-                )
-                op.ifc_element_type = AuthoringData.data["ifc_element_type"]
-            else:
-                row.label(text="No Element Types Found", icon="ERROR")
+        row.label(text="No Element Types Found", icon="ERROR")
+        row = cls.layout.row(align=True)
+        row.operator("bim.add_element", icon_value=bonsai.bim.icons["IFC"].icon_id, text="Add New Type")
+        if AuthoringData.data["ifc_element_type"]:
            row = cls.layout.row(align=True)
-            row.operator("bim.launch_type_manager", icon=tool.Blender.TYPE_MANAGER_ICON, text="Launch Type Manager")
+            op = row.operator(
+                "bim.add_default_type",
+                icon_value=custom_icon_previews["ADD_TYPE"].icon_id,
+                text=f"Quick Create Default {AuthoringData.data['ifc_element_type']}",
+            )
+            op.ifc_element_type = AuthoringData.data["ifc_element_type"]

    @classmethod
    def draw_add_object(cls, context):
        ui_context = str(context.region.type)
-        if AuthoringData.data["ifc_classes"]:
-            if not AuthoringData.data["ifc_element_type"]:
-                row = cls.layout.row(align=True)
-                prop_with_search(row, cls.props, "ifc_class", text="Type Class" if ui_context != "TOOL_HEADER" else "")
-            if AuthoringData.data["relating_type_id"]:
-                row = cls.layout.row(align=True)
-                box = row.box()
-                # This trick creates a fake dropdown
-                row2 = box.row(align=True)
-                row2.operator(
-                    "bim.launch_type_manager",
-                    icon="FILE_3D",
-                    text=AuthoringData.data["relating_type_name"],
-                    emboss=False,
-                )
-                row2.operator(
-                    "bim.launch_type_manager",
-                    icon="DOWNARROW_HLT",
-                    text="",
-                    emboss=False,
-                )
-                row = cls.layout.row(align=True) if ui_context != "TOOL_HEADER" else row
-                op = row.operator("bim.hotkey", text="Add", icon_value=custom_icon_previews["ADD"].icon_id)
-                op.hotkey = "S_A"
-            else:
-                row.label(text="No Construction Type", icon="FILE_3D")
+        if not AuthoringData.data["ifc_element_type"]:
+            row = cls.layout.row(align=True)
+            prop_with_search(row, cls.props, "ifc_class", text="Type Class" if ui_context != "TOOL_HEADER" else "")
+        if AuthoringData.data["relating_type_id"]:
+            row = cls.layout.row(align=True)
+            box = row.box()
+            # This trick creates a fake dropdown
+            row2 = box.row(align=True)
+            row2.operator(
+                "bim.launch_type_manager",
+                icon="FILE_3D",
+                text=AuthoringData.data["relating_type_name"],
+                emboss=False,
+            )
+            row2.operator(
+                "bim.launch_type_manager",
+                icon="DOWNARROW_HLT",
+                text="",
+                emboss=False,
+            )
+            row = cls.layout.row(align=True) if ui_context != "TOOL_HEADER" else row
+            op = row.operator("bim.hotkey", text="Add", icon_value=custom_icon_previews["ADD"].icon_id)
+            op.hotkey = "S_A"
+        else:
+            row.label(text="No Construction Type", icon="FILE_3D")

    @classmethod
    def draw_add_object_parameters(cls, context):
@@ -858,13 +857,15 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
        props = bpy.context.scene.BIMModelProperties
        if bpy.context.scene.BIMGeometryProperties.mode == "ITEM":
            bpy.ops.wm.call_menu(name="BIM_MT_add_representation_item")
-        elif (
-            props.relating_type_id
-            and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(props.relating_type_id))) == "LAYER2"
-        ):
-            bpy.ops.bim.draw_polyline_wall("INVOKE_DEFAULT")
        else:
-            bpy.ops.bim.add_occurrence("INVOKE_DEFAULT")
+            for obj in tool.Blender.get_selected_objects():
+                obj.select_set(False)
+            if (
+                relating_type_id := tool.Blender.get_enum_safe(props, "relating_type_id")
+            ) and tool.Model.get_usage_type(tool.Ifc.get().by_id(int(relating_type_id))) == "LAYER2":
+                bpy.ops.bim.draw_polyline_wall("INVOKE_DEFAULT")
+            else:
+                bpy.ops.bim.add_occurrence("INVOKE_DEFAULT")

    def hotkey_S_Q(self):
        if not bpy.context.selected_objects:
@@ -20,7 +20,6 @@ import bpy
 from . import ui, prop, operator

 classes = (
-    operator.AddType,
    operator.AssignType,
    operator.AutoRenameOccurrences,
    operator.DisableEditingType,
@@ -229,257 +229,6 @@ class SelectTypeObjects(bpy.types.Operator):
        return {"FINISHED"}


-class AddType(bpy.types.Operator, tool.Ifc.Operator):
-    bl_idname = "bim.add_type"
-    bl_label = "Add Type"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def _execute(self, context):
-        props = context.scene.BIMModelProperties
-        ifc_class = props.type_class
-        predefined_type = props.type_predefined_type
-        name = props.type_name
-        template = props.type_template
-        ifc_file = tool.Ifc.get()
-        body = ifcopenshell.util.representation.get_context(ifc_file, "Model", "Body", "MODEL_VIEW")
-        if not body:
-            props.type_class = props.type_class
-            self.report({"ERROR"}, "No Model/Body/MODEL_VIEW context found.")
-            return {"FINISHED"}
-
-        if template == "MESH":
-            location = context.scene.cursor.location
-            if context.active_object and context.selected_objects and context.active_object.data:
-                obj = context.active_object
-                element = tool.Ifc.get_entity(obj)
-                if element:
-                    mesh = obj.data.copy()
-                    mesh.BIMMeshProperties.ifc_definition_id = 0
-                    obj = bpy.data.objects.new(element.Name or name, mesh)
-            else:
-                mesh = bpy.data.meshes.new(name)
-                bm = bmesh.new()
-                bmesh.ops.create_cube(bm, size=1)
-                bm.to_mesh(mesh)
-                bm.free()
-                obj = bpy.data.objects.new(name, mesh)
-            obj.matrix_world.translation = location
-            bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                ifc_class=ifc_class,
-                predefined_type=predefined_type,
-                should_add_representation=True,
-                context=body,
-                ifc_representation_class=None,
-            )
-
-        elif template in ("LAYERSET_AXIS2", "LAYERSET_AXIS3"):
-            unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
-            obj = bpy.data.objects.new(name, None)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                ifc_class=ifc_class,
-                predefined_type=predefined_type,
-                should_add_representation=True,
-                context=body,
-                ifc_representation_class=None,
-            )
-            materials = ifc_file.by_type("IfcMaterial")
-            if materials:
-                material = materials[0]  # Arbitrarily pick a material
-            else:
-                material = ifcopenshell.api.run("material.add_material", tool.Ifc.get(), name="Unknown")
-            rel = ifcopenshell.api.run(
-                "material.assign_material", ifc_file, products=[element], type="IfcMaterialLayerSet"
-            )
-            layer_set = rel.RelatingMaterial
-            layer = ifcopenshell.api.run("material.add_layer", ifc_file, layer_set=layer_set, material=material)
-            thickness = 0.1  # Arbitrary metric thickness for now
-            layer.LayerThickness = thickness / unit_scale
-
-            pset = ifcopenshell.api.run("pset.add_pset", ifc_file, product=element, name="EPset_Parametric")
-            if template == "LAYERSET_AXIS2":
-                axis = "AXIS2"
-            elif template == "LAYERSET_AXIS3":
-                axis = "AXIS3"
-            ifcopenshell.api.run("pset.edit_pset", ifc_file, pset=pset, properties={"LayerSetDirection": axis})
-
-        elif template == "PROFILESET" or template.startswith("FLOW_SEGMENT_"):
-            unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
-            obj = bpy.data.objects.new(name, None)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                ifc_class=ifc_class,
-                predefined_type=predefined_type,
-                should_add_representation=True,
-                context=body,
-                ifc_representation_class=None,
-            )
-            materials = ifc_file.by_type("IfcMaterial")
-            if materials:
-                material = materials[0]  # Arbitrarily pick a material
-            else:
-                material = ifcopenshell.api.run("material.add_material", tool.Ifc.get(), name="Unknown")
-            if template == "PROFILESET":
-                named_profiles = [p for p in ifc_file.by_type("IfcProfileDef") if p.ProfileName]
-                if named_profiles:
-                    profile = named_profiles[0]
-                else:
-                    size = 0.5 / unit_scale
-                    profile = ifc_file.create_entity(
-                        "IfcRectangleProfileDef", ProfileName="New Profile", ProfileType="AREA", XDim=size, YDim=size
-                    )
-            else:
-                # NOTE: defaults dims are in meters / mm
-                # for now default names are hardcoded to mm
-                if template == "FLOW_SEGMENT_RECTANGULAR":
-                    default_x_dim = 0.4
-                    default_y_dim = 0.2
-                    profile_name = f"{ifc_class}-{default_x_dim*1000}x{default_y_dim*1000}"
-                    profile = ifc_file.create_entity(
-                        "IfcRectangleProfileDef",
-                        ProfileName=profile_name,
-                        ProfileType="AREA",
-                        XDim=default_x_dim / unit_scale,
-                        YDim=default_y_dim / unit_scale,
-                    )
-                elif template == "FLOW_SEGMENT_CIRCULAR":
-                    default_diameter = 0.1
-                    profile_name = f"{ifc_class}-{default_diameter*1000}"
-                    profile = ifc_file.create_entity(
-                        "IfcCircleProfileDef",
-                        ProfileName=profile_name,
-                        ProfileType="AREA",
-                        Radius=(default_diameter / 2) / unit_scale,
-                    )
-                elif template == "FLOW_SEGMENT_CIRCULAR_HOLLOW":
-                    default_diameter = 0.15
-                    default_thickness = 0.005
-                    profile_name = f"{ifc_class}-{default_diameter*1000}x{default_thickness*1000}"
-                    profile = ifc_file.create_entity(
-                        "IfcCircleHollowProfileDef",
-                        ProfileName=profile_name,
-                        ProfileType="AREA",
-                        Radius=(default_diameter / 2) / unit_scale,
-                        WallThickness=default_thickness,
-                    )
-
-            rel = ifcopenshell.api.run(
-                "material.assign_material", ifc_file, products=[element], type="IfcMaterialProfileSet"
-            )
-            profile_set = rel.RelatingMaterial
-            material_profile = ifcopenshell.api.run(
-                "material.add_profile", ifc_file, profile_set=profile_set, material=material
-            )
-            ifcopenshell.api.run(
-                "material.assign_profile", ifc_file, material_profile=material_profile, profile=profile
-            )
-
-        elif template == "EMPTY":
-            obj = bpy.data.objects.new(name, None)
-            bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                ifc_class=ifc_class,
-                predefined_type=predefined_type,
-                should_add_representation=True,
-                context=body,
-                ifc_representation_class=None,
-            )
-
-        elif template == "WINDOW":
-            mesh = bpy.data.meshes.new(name)
-            obj = bpy.data.objects.new(name, mesh)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                predefined_type=predefined_type if tool.Ifc.get_schema() != "IFC2X3" else None,
-                ifc_class="IfcWindowType" if tool.Ifc.get_schema() != "IFC2X3" else "IfcWindowStyle",
-                should_add_representation=False,
-            )
-            with context.temp_override(active_object=obj):
-                bpy.ops.bim.add_window()
-
-        elif template == "DOOR":
-            mesh = bpy.data.meshes.new(name)
-            obj = bpy.data.objects.new(name, mesh)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                predefined_type=predefined_type if tool.Ifc.get_schema() != "IFC2X3" else None,
-                ifc_class="IfcDoorType" if tool.Ifc.get_schema() != "IFC2X3" else "IfcDoorStyle",
-                should_add_representation=False,
-            )
-            with context.temp_override(active_object=obj):
-                bpy.ops.bim.add_door()
-
-        elif template == "STAIR":
-            mesh = bpy.data.meshes.new(name)
-            obj = bpy.data.objects.new(name, mesh)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                predefined_type=predefined_type,
-                ifc_class=ifc_class,
-                should_add_representation=False,
-            )
-            with context.temp_override(active_object=obj):
-                bpy.ops.bim.add_stair()
-
-        elif template == "RAILING":
-            mesh = bpy.data.meshes.new(name)
-            obj = bpy.data.objects.new(name, mesh)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                predefined_type=predefined_type,
-                ifc_class="IfcRailingType",
-                should_add_representation=True,
-                context=body,
-            )
-            with context.temp_override(active_object=obj):
-                bpy.ops.bim.add_railing()
-
-        elif template == "ROOF":
-            mesh = bpy.data.meshes.new(name)
-            obj = bpy.data.objects.new(name, mesh)
-            element = bonsai.core.root.assign_class(
-                tool.Ifc,
-                tool.Collector,
-                tool.Root,
-                obj=obj,
-                predefined_type=predefined_type,
-                ifc_class="IfcRoofType",
-                should_add_representation=True,
-                context=body,
-            )
-            with context.temp_override(active_object=obj):
-                bpy.ops.bim.add_roof()
-
-        bpy.ops.bim.load_type_thumbnails(ifc_class=ifc_class)
-        props.type_class = props.type_class
-        return {"FINISHED"}
-
-
 class RemoveType(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.remove_type"
    bl_label = "Remove Type"
@@ -144,11 +144,11 @@ class Blender(bonsai.core.tool.Blender):

    @classmethod
    def get_selected_objects(cls) -> set[bpy.types.Object]:
-        if bpy.context.selected_objects:
-            if active_obj := bpy.context.active_object:
-                return set(bpy.context.selected_objects + [active_obj])
-            return set(bpy.context.selected_objects)
-        if active_obj := bpy.context.active_object:
+        if selected_objects := getattr(bpy.context, "selected_objects", None):
+            if active_obj := cls.get_active_object():
+                return set(selected_objects + [active_obj])
+            return set(selected_objects)
+        if active_obj := cls.get_active_object():
            return {active_obj}
        return set()