Use passed context instead of bpy.context

src/blenderbim/blenderbim/bim/handler.py

@@ -166,8 +166,8 @@ def undo_pre(scene):
 
 @persistent
 def undo_post(scene):
-    if IfcStore.last_transaction != bpy.context.scene.BIMProperties.last_transaction:
+    if IfcStore.last_transaction != scene.BIMProperties.last_transaction:
-        IfcStore.last_transaction = bpy.context.scene.BIMProperties.last_transaction
+        IfcStore.last_transaction = scene.BIMProperties.last_transaction
         IfcStore.undo()
         purge_module_data()
     IfcStore.update_undo_redo_stack_objects()
@@ -181,8 +181,8 @@ def redo_pre(scene):
 
 @persistent
 def redo_post(scene):
-    if IfcStore.last_transaction != bpy.context.scene.BIMProperties.last_transaction:
+    if IfcStore.last_transaction != scene.BIMProperties.last_transaction:
-        IfcStore.last_transaction = bpy.context.scene.BIMProperties.last_transaction
+        IfcStore.last_transaction = scene.BIMProperties.last_transaction
         IfcStore.redo()
         purge_module_data()
     IfcStore.update_undo_redo_stack_objects()
@@ -191,7 +191,7 @@ def redo_post(scene):
 
 @persistent
 def ensureIfcExported(scene):
-    if IfcStore.get_file() and not bpy.context.scene.BIMProperties.ifc_file:
+    if IfcStore.get_file() and not scene.BIMProperties.ifc_file:
         bpy.ops.export_ifc.bim("INVOKE_DEFAULT")
 
 
@@ -230,18 +230,18 @@ def setDefaultProperties(scene):
         key=active_object_key, owner=global_subscription_owner, args=(), notify=active_object_callback
     )
     ifcopenshell.api.owner.settings.get_person = (
-        lambda ifc: ifc.by_id(int(bpy.context.scene.BIMOwnerProperties.user_person))
+        lambda ifc: ifc.by_id(int(scene.BIMOwnerProperties.user_person))
-        if getPersons(None, bpy.context) and bpy.context.scene.BIMOwnerProperties.user_person
+        if getPersons(None, None) and scene.BIMOwnerProperties.user_person
         else None
     )
     ifcopenshell.api.owner.settings.get_organisation = (
-        lambda ifc: ifc.by_id(int(bpy.context.scene.BIMOwnerProperties.user_organisation))
+        lambda ifc: ifc.by_id(int(scene.BIMOwnerProperties.user_organisation))
-        if getOrganisations(None, bpy.context) and bpy.context.scene.BIMOwnerProperties.user_organisation
+        if getOrganisations(None, None) and scene.BIMOwnerProperties.user_organisation
         else None
     )
     ifcopenshell.api.owner.settings.get_application = get_application
-    if len(bpy.context.scene.DocProperties.drawing_styles) == 0:
+    if len(scene.DocProperties.drawing_styles) == 0:
-        drawing_style = bpy.context.scene.DocProperties.drawing_styles.add()
+        drawing_style = scene.DocProperties.drawing_styles.add()
         drawing_style.name = "Technical"
         drawing_style.render_type = "VIEWPORT"
         drawing_style.raster_style = json.dumps(
@@ -272,7 +272,7 @@ def setDefaultProperties(scene):
                 "space.overlay.show_relationship_lines": False,
             }
         )
-        drawing_style = bpy.context.scene.DocProperties.drawing_styles.add()
+        drawing_style = scene.DocProperties.drawing_styles.add()
         drawing_style.name = "Shaded"
         drawing_style.render_type = "VIEWPORT"
         drawing_style.raster_style = json.dumps(
@@ -303,7 +303,7 @@ def setDefaultProperties(scene):
                 "space.overlay.show_relationship_lines": False,
             }
         )
-        drawing_style = bpy.context.scene.DocProperties.drawing_styles.add()
+        drawing_style = scene.DocProperties.drawing_styles.add()
         drawing_style.name = "Blender Default"
         drawing_style.render_type = "DEFAULT"
         bpy.ops.bim.save_drawing_style(index="2")

src/blenderbim/blenderbim/bim/module/bcf/operator.py

@@ -787,7 +787,7 @@ class ActivateBcfViewpoint(bpy.types.Operator):
         area.spaces[0].region_3d.view_perspective = "CAMERA"
 
         if self.file:
-            self.set_viewpoint_components(viewpoint)
+            self.set_viewpoint_components(viewpoint, context)
 
         gp = bpy.data.grease_pencils.get("BCF")
         if gp:
@@ -803,10 +803,10 @@ class ActivateBcfViewpoint(bpy.types.Operator):
         if viewpoint.bitmaps:
             self.create_bitmaps(bcfxml, viewpoint, topic)
 
-        self.setup_camera(viewpoint, obj, cam_aspect)
+        self.setup_camera(viewpoint, obj, cam_aspect, context)
         return {"FINISHED"}
 
-    def setup_camera(self, viewpoint, obj, cam_aspect):
+    def setup_camera(self, viewpoint, obj, cam_aspect, context):
         if viewpoint.orthogonal_camera:
             camera = viewpoint.orthogonal_camera
             obj.data.type = "ORTHO"
@@ -831,7 +831,7 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             [x_axis[2], y_axis[2], z_axis[2], camera.camera_view_point.z],
             [0, 0, 0, 1],
         ))
-        props = bpy.context.scene.BIMGeoreferenceProperties
+        props = context.scene.BIMGeoreferenceProperties
         if props.has_blender_offset:
             unit_scale = ifcopenshell.util.unit.calculate_unit_scale(self.file)
             matrix = ifcopenshell.util.geolocation.global2local(
@@ -844,7 +844,7 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             )
         obj.matrix_world = Matrix(matrix.tolist())
 
-    def set_viewpoint_components(self, viewpoint):
+    def set_viewpoint_components(self, viewpoint, context):
         if not viewpoint.components:
             return
 
@@ -854,10 +854,10 @@ class ActivateBcfViewpoint(bpy.types.Operator):
         exception_global_ids = [v.ifc_guid for v in viewpoint.components.visibility.exceptions]
 
         if viewpoint.components.visibility.default_visibility:
-            old = bpy.context.area.type
+            old = context.area.type
-            bpy.context.area.type = "VIEW_3D"
+            context.area.type = "VIEW_3D"
             bpy.ops.object.hide_view_clear()
-            bpy.context.area.type = old
+            context.area.type = old
             for global_id in exception_global_ids:
                 obj = IfcStore.get_element(global_id)
                 if obj:
@@ -869,35 +869,35 @@ class ActivateBcfViewpoint(bpy.types.Operator):
                 if obj:
                     objs.append(obj)
             if objs:
-                old = bpy.context.area.type
+                old = context.area.type
-                bpy.context.area.type = "VIEW_3D"
+                context.area.type = "VIEW_3D"
                 context_override = {}
                 context_override["object"] = context_override["active_object"] = objs[0]
                 context_override["selected_objects"] = context_override["selected_editable_objects"] = objs
                 bpy.ops.object.hide_view_set(context_override, unselected=True)
-                bpy.context.area.type = old
+                context.area.type = old
 
         if viewpoint.components.view_setup_hints:
             if not viewpoint.components.view_setup_hints.spaces_visible:
-                self.hide_spaces()
+                self.hide_spaces(context)
             if viewpoint.components.view_setup_hints.openings_visible is not None:
-                self.set_openings_visibility(viewpoint.components.view_setup_hints.openings_visible)
+                self.set_openings_visibility(viewpoint.components.view_setup_hints.openings_visible, context)
         else:
-            self.hide_spaces()
+            self.hide_spaces(context)
-            self.set_openings_visibility(False)
+            self.set_openings_visibility(False, context)
 
         self.set_selection(viewpoint)
         self.set_colours(viewpoint)
 
-    def hide_spaces(self):
+    def hide_spaces(self, context):
-        old = bpy.context.area.type
+        old = context.area.type
-        bpy.context.area.type = "VIEW_3D"
+        context.area.type = "VIEW_3D"
         bpy.ops.object.select_pattern(pattern="IfcSpace/*")
         bpy.ops.object.hide_view_set({})
-        bpy.context.area.type = old
+        context.area.type = old
 
-    def set_openings_visibility(self, is_visible):
+    def set_openings_visibility(self, is_visible, context):
-        for collection in self.get_opening_collections():
+        for collection in self.get_opening_collections(context):
             collection.hide_viewport = not is_visible
 
     def set_selection(self, viewpoint):
@@ -918,9 +918,9 @@ class ActivateBcfViewpoint(bpy.types.Operator):
             if obj:
                 obj.color = self.hex_to_rgb(color)
 
-    def get_opening_collections(self):
+    def get_opening_collections(self, context):
         collections = []
-        for collection in bpy.context.view_layer.layer_collection.children:
+        for collection in context.view_layer.layer_collection.children:
             opening_collection = collection.children.get("IfcOpeningElements")
             if opening_collection:
                 collections.append(opening_collection)

src/blenderbim/blenderbim/bim/module/cost/operator.py

@@ -438,7 +438,7 @@ class UnassignCostItemQuantity(bpy.types.Operator):
         else:
             products = [
                 self.file.by_id(o.BIMObjectProperties.ifc_definition_id)
-                for o in bpy.context.selected_objects
+                for o in context.selected_objects
                 if o.BIMObjectProperties.ifc_definition_id
             ]
         ifcopenshell.api.run(
@@ -637,11 +637,14 @@ class EnableEditingCostItemValue(bpy.types.Operator):
         data = Data.cost_values[self.cost_value]
 
         blenderbim.bim.helper.import_attributes(
-            data["type"], self.props.cost_value_attributes, data, self.import_attributes
+            data["type"], 
+            self.props.cost_value_attributes, 
+            data, 
+            lambda name, prop, data: self.import_attributes(name, prop, data, context)
         )
         return {"FINISHED"}
 
-    def import_attributes(self, name, prop, data):
+    def import_attributes(self, name, prop, data, context):
         if name == "AppliedValue":
             # TODO: for now, only support simple values
             prop.data_type = "float"
@@ -649,7 +652,7 @@ class EnableEditingCostItemValue(bpy.types.Operator):
             return True
         if (
             name == "UnitBasis"
-            and Data.cost_schedules[bpy.context.scene.BIMCostProperties.active_cost_schedule_id]["PredefinedType"]
+            and Data.cost_schedules[context.scene.BIMCostProperties.active_cost_schedule_id]["PredefinedType"]
             == "SCHEDULEOFRATES"
         ):
             prop = self.props.cost_value_attributes.add()
@@ -711,7 +714,9 @@ class EditCostValue(bpy.types.Operator):
 
     def _execute(self, context):
         props = context.scene.BIMCostProperties
-        attributes = blenderbim.bim.helper.export_attributes(props.cost_value_attributes, self.export_attributes)
+        attributes = blenderbim.bim.helper.export_attributes(
+            props.cost_value_attributes, 
+            lambda attributes, prop: self.export_attributes(attributes, prop, context))
         self.file = IfcStore.get_file()
         ifcopenshell.api.run(
             "cost.edit_cost_value",
@@ -722,7 +727,7 @@ class EditCostValue(bpy.types.Operator):
         bpy.ops.bim.disable_editing_cost_item_value()
         return {"FINISHED"}
 
-    def export_attributes(self, attributes, prop):
+    def export_attributes(self, attributes, prop, context):
         if prop.name == "UnitBasisValue":
             if prop.is_null:
                 attributes["UnitBasis"] = None
@@ -730,7 +735,7 @@ class EditCostValue(bpy.types.Operator):
             attributes["UnitBasis"] = {
                 "ValueComponent": prop.float_value or 1,
                 "UnitComponent": IfcStore.get_file().by_id(
-                    int(bpy.context.scene.BIMCostProperties.cost_value_attributes.get("UnitBasisUnit").enum_value)
+                    int(context.scene.BIMCostProperties.cost_value_attributes.get("UnitBasisUnit").enum_value)
                 ),
             }
             return True

src/blenderbim/blenderbim/bim/module/drawing/operator.py

@@ -127,7 +127,7 @@ class CreateDrawing(bpy.types.Operator):
         self.profile_code("Generate annotation")
         svg_path = self.combine_svgs(context, underlay_svg, linework_svg, annotation_svg)
         self.profile_code("Combine SVG layers")
-        open_with_user_command(bpy.context.preferences.addons["blenderbim"].preferences.svg_command, svg_path)
+        open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, svg_path)
         print("Total Time: {:.2f}".format(time.time() - start))
         return {"FINISHED"}
 
@@ -185,8 +185,8 @@ class CreateDrawing(bpy.types.Operator):
         if not self.props.has_underlay:
             return
         svg_path = os.path.join(context.scene.BIMProperties.data_dir, "cache", self.drawing_name + "-underlay.svg")
-        bpy.context.scene.render.filepath = svg_path[0:-4] + ".png"
+        context.scene.render.filepath = svg_path[0:-4] + ".png"
-        drawing_style = bpy.context.scene.DocProperties.drawing_styles[
+        drawing_style = context.scene.DocProperties.drawing_styles[
             self.camera.data.BIMCameraProperties.active_drawing_style_index
         ]
 
@@ -197,7 +197,7 @@ class CreateDrawing(bpy.types.Operator):
             for obj in self.camera.users_collection[0].objects:
                 previous_visibility[obj.name] = obj.hide_get()
                 obj.hide_set(True)
-            for obj in bpy.context.visible_objects:
+            for obj in context.visible_objects:
                 if (
                     (not obj.data and not obj.instance_collection)
                     or isinstance(obj.data, bpy.types.Camera)
@@ -208,14 +208,14 @@ class CreateDrawing(bpy.types.Operator):
                     previous_visibility[obj.name] = obj.hide_get()
                     obj.hide_set(True)
 
-            space = self.get_view_3d()
+            space = self.get_view_3d(context.screen.areas)
             previous_shading = space.shading.type
-            previous_format = bpy.context.scene.render.image_settings.file_format
+            previous_format = context.scene.render.image_settings.file_format
             space.shading.type = "RENDERED"
-            bpy.context.scene.render.image_settings.file_format = "PNG"
+            context.scene.render.image_settings.file_format = "PNG"
             bpy.ops.render.opengl(write_still=True)
             space.shading.type = previous_shading
-            bpy.context.scene.render.image_settings.file_format = previous_format
+            context.scene.render.image_settings.file_format = previous_format
 
             for name, value in previous_visibility.items():
                 bpy.data.objects[name].hide_set(value)
@@ -229,7 +229,7 @@ class CreateDrawing(bpy.types.Operator):
             svg_writer.human_scale = "NTS"
         else:
             svg_writer.human_scale = human_scale
-        render = bpy.context.scene.render
+        render = context.scene.render
         if self.is_landscape():
             width = self.camera.data.ortho_scale
             height = width / render.resolution_x * render.resolution_y
@@ -237,13 +237,13 @@ class CreateDrawing(bpy.types.Operator):
             height = self.camera.data.ortho_scale
             width = height / render.resolution_y * render.resolution_x
         svg_writer.output = svg_path
-        svg_writer.data_dir = bpy.context.scene.BIMProperties.data_dir
+        svg_writer.data_dir = context.scene.BIMProperties.data_dir
         svg_writer.vector_style = drawing_style.vector_style
         svg_writer.camera = self.camera
         svg_writer.camera_width = width
         svg_writer.camera_height = height
         svg_writer.camera_projection = tuple(self.camera.matrix_world.to_quaternion() @ Vector((0, 0, -1)))
-        svg_writer.background_image = bpy.context.scene.render.filepath
+        svg_writer.background_image = context.scene.render.filepath
         svg_writer.write("underlay")
         return svg_path
 
@@ -332,12 +332,12 @@ class CreateDrawing(bpy.types.Operator):
         else:
             svg_writer.human_scale = human_scale
 
-        drawing_style = bpy.context.scene.DocProperties.drawing_styles[
+        drawing_style = context.scene.DocProperties.drawing_styles[
             camera.data.BIMCameraProperties.active_drawing_style_index
         ]
 
-        render = bpy.context.scene.render
+        render = context.scene.render
-        if self.is_landscape():
+        if self.is_landscape(render):
             width = camera.data.ortho_scale
             height = width / render.resolution_x * render.resolution_y
         else:
@@ -346,7 +346,7 @@ class CreateDrawing(bpy.types.Operator):
 
         svg_writer.scale = float(numerator) / float(denominator)
         svg_writer.output = svg_path
-        svg_writer.data_dir = bpy.context.scene.BIMProperties.data_dir
+        svg_writer.data_dir = context.scene.BIMProperties.data_dir
         svg_writer.vector_style = drawing_style.vector_style
         svg_writer.camera = camera
         svg_writer.camera_width = width
@@ -391,11 +391,11 @@ class CreateDrawing(bpy.types.Operator):
         svg_writer.write("annotation")
         return svg_writer.output
 
-    def is_landscape(self):
+    def is_landscape(self, render):
-        return bpy.context.scene.render.resolution_x > bpy.context.scene.render.resolution_y
+        return render.resolution_x > render.resolution_y
 
-    def get_view_3d(self):
+    def get_view_3d(self, areas):
-        for area in bpy.context.screen.areas:
+        for area in areas:
             if area.type != "VIEW_3D":
                 continue
             for space in area.spaces:
@@ -512,7 +512,7 @@ class AddAnnotation(bpy.types.Operator):
             bpy.ops.bim.update_representation(obj=obj.name)
 
         bpy.ops.object.select_all(action="DESELECT")
-        bpy.context.view_layer.objects.active = obj
+        context.view_layer.objects.active = obj
         obj.select_set(True)
         bpy.ops.object.mode_set(mode="EDIT")
         return {"FINISHED"}
@@ -525,11 +525,12 @@ class AddSheet(bpy.types.Operator):
     # TODO: check undo redo
 
     def execute(self, context):
-        new = bpy.context.scene.DocProperties.sheets.add()
+        scene = context.scene
-        new.name = "{} - SHEET".format(len(bpy.context.scene.DocProperties.sheets))
+        new = scene.DocProperties.sheets.add()
+        new.name = "{} - SHEET".format(len(scene.DocProperties.sheets))
         sheet_builder = sheeter.SheetBuilder()
-        sheet_builder.data_dir = bpy.context.scene.BIMProperties.data_dir
+        sheet_builder.data_dir = scene.BIMProperties.data_dir
-        sheet_builder.create(new.name, bpy.context.scene.DocProperties.titleblock)
+        sheet_builder.create(new.name, scene.DocProperties.titleblock)
         return {"FINISHED"}
 
 
@@ -538,11 +539,11 @@ class OpenSheet(bpy.types.Operator):
     bl_label = "Open Sheet"
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         open_with_user_command(
-            bpy.context.preferences.addons["blenderbim"].preferences.svg_command,
+            context.preferences.addons["blenderbim"].preferences.svg_command,
             os.path.join(
-                bpy.context.scene.BIMProperties.data_dir, "sheets", props.sheets[props.active_sheet_index].name + ".svg"
+                context.scene.BIMProperties.data_dir, "sheets", props.sheets[props.active_sheet_index].name + ".svg"
             ),
         )
         return {"FINISHED"}
@@ -555,9 +556,9 @@ class AddDrawingToSheet(bpy.types.Operator):
     # TODO: check undo redo
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         sheet_builder = sheeter.SheetBuilder()
-        sheet_builder.data_dir = bpy.context.scene.BIMProperties.data_dir
+        sheet_builder.data_dir = context.scene.BIMProperties.data_dir
         try:
             sheet_builder.add_drawing(
                 props.drawings[props.active_drawing_index].name, props.sheets[props.active_sheet_index].name
@@ -573,17 +574,18 @@ class CreateSheets(bpy.types.Operator):
     # TODO: check undo redo
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        scene = context.scene
+        props = scene.DocProperties
         name = props.sheets[props.active_sheet_index].name
         sheet_builder = sheeter.SheetBuilder()
-        sheet_builder.data_dir = bpy.context.scene.BIMProperties.data_dir
+        sheet_builder.data_dir = scene.BIMProperties.data_dir
         sheet_builder.build(name)
 
-        svg2pdf_command = bpy.context.preferences.addons["blenderbim"].preferences.svg2pdf_command
+        svg2pdf_command = context.preferences.addons["blenderbim"].preferences.svg2pdf_command
-        svg2dxf_command = bpy.context.preferences.addons["blenderbim"].preferences.svg2dxf_command
+        svg2dxf_command = context.preferences.addons["blenderbim"].preferences.svg2dxf_command
 
         if svg2pdf_command:
-            path = os.path.join(bpy.context.scene.BIMProperties.data_dir, "build", name)
+            path = os.path.join(scene.BIMProperties.data_dir, "build", name)
             svg = os.path.join(path, name + ".svg")
             pdf = os.path.join(path, name + ".pdf")
             # With great power comes great responsibility. Example:
@@ -593,7 +595,7 @@ class CreateSheets(bpy.types.Operator):
                 subprocess.run(command)
 
         if svg2dxf_command:
-            path = os.path.join(bpy.context.scene.BIMProperties.data_dir, "build", name)
+            path = os.path.join(scene.BIMProperties.data_dir, "build", name)
             svg = os.path.join(path, name + ".svg")
             eps = os.path.join(path, name + ".eps")
             dxf = os.path.join(path, name + ".dxf")
@@ -605,11 +607,11 @@ class CreateSheets(bpy.types.Operator):
                 subprocess.run(command)
 
         if svg2pdf_command:
-            open_with_user_command(bpy.context.preferences.addons["blenderbim"].preferences.pdf_command, pdf)
+            open_with_user_command(context.preferences.addons["blenderbim"].preferences.pdf_command, pdf)
         else:
             open_with_user_command(
-                bpy.context.preferences.addons["blenderbim"].preferences.svg_command,
+                context.preferences.addons["blenderbim"].preferences.svg_command,
-                os.path.join(bpy.context.scene.BIMProperties.data_dir, "build", name, name + ".svg"),
+                os.path.join(scene.BIMProperties.data_dir, "build", name, name + ".svg"),
             )
         return {"FINISHED"}
 
@@ -621,8 +623,8 @@ class OpenView(bpy.types.Operator):
 
     def execute(self, context):
         open_with_user_command(
-            bpy.context.preferences.addons["blenderbim"].preferences.svg_command,
+            context.preferences.addons["blenderbim"].preferences.svg_command,
-            os.path.join(bpy.context.scene.BIMProperties.data_dir, "diagrams", self.view + ".svg"),
+            os.path.join(context.scene.BIMProperties.data_dir, "diagrams", self.view + ".svg"),
         )
         return {"FINISHED"}
 
@@ -634,13 +636,13 @@ class OpenViewCamera(bpy.types.Operator):
     view_name: bpy.props.StringProperty()
 
     def execute(self, context):
-        new_drawing_index = bpy.context.scene.DocProperties.drawings.find(self.view_name)
+        new_drawing_index = context.scene.DocProperties.drawings.find(self.view_name)
-        bpy.context.scene.DocProperties.active_drawing_index = new_drawing_index
+        context.scene.DocProperties.active_drawing_index = new_drawing_index
-        drawing = bpy.context.scene.DocProperties.drawings[new_drawing_index]
+        drawing = context.scene.DocProperties.drawings[new_drawing_index]
-        bpy.context.view_layer.objects.active = drawing.camera
+        context.view_layer.objects.active = drawing.camera
         bpy.ops.object.select_all(action="DESELECT")
         drawing.camera.select_set(True)
-        for area in bpy.context.screen.areas:
+        for area in context.screen.areas:
             if area.ui_type == "PROPERTIES":
                 for space in area.spaces:
                     space.context = "DATA"
@@ -654,22 +656,22 @@ class ActivateView(bpy.types.Operator):
     drawing_index: bpy.props.IntProperty()
 
     def execute(self, context):
-        camera = bpy.context.scene.DocProperties.drawings[self.drawing_index].camera
+        camera = context.scene.DocProperties.drawings[self.drawing_index].camera
         if not camera:
             return {"FINISHED"}
-        area = next(area for area in bpy.context.screen.areas if area.type == "VIEW_3D")
+        area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
         is_local_view = area.spaces[0].local_view is not None
         if is_local_view:
             bpy.ops.view3d.localview()
-            bpy.context.scene.camera = camera
+            context.scene.camera = camera
             bpy.ops.view3d.localview()
         else:
-            bpy.context.scene.camera = camera
+            context.scene.camera = camera
         area.spaces[0].region_3d.view_perspective = "CAMERA"
         views_collection = bpy.data.collections.get("Views")
         for collection in views_collection.children:
             # We assume the project collection is at the top level
-            for project_collection in bpy.context.view_layer.layer_collection.children:
+            for project_collection in context.view_layer.layer_collection.children:
                 # We assume a convention that the 'Views' collection is directly
                 # in the project collection
                 if (
@@ -678,7 +680,7 @@ class ActivateView(bpy.types.Operator):
                 ):
                     project_collection.children["Views"].children[collection.name].hide_viewport = True
                     bpy.data.collections.get(collection.name).hide_render = True
-        bpy.context.view_layer.layer_collection.children["Views"].children[
+        context.view_layer.layer_collection.children["Views"].children[
             camera.users_collection[0].name
         ].hide_viewport = False
         bpy.data.collections.get(camera.users_collection[0].name).hide_render = False
@@ -694,7 +696,7 @@ class SelectDocIfcFile(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        bpy.context.scene.DocProperties.ifc_files[self.index].name = self.filepath
+        context.scene.DocProperties.ifc_files[self.index].name = self.filepath
         return {"FINISHED"}
 
     def invoke(self, context, event):
@@ -708,7 +710,7 @@ class GenerateReferences(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        self.camera = bpy.context.scene.camera
+        self.camera = context.scene.camera
         self.filter_potential_references()
         if self.camera.data.BIMCameraProperties.target_view == "PLAN_VIEW":
             self.generate_grids()
@@ -777,7 +779,7 @@ class ResizeText(bpy.types.Operator):
     # TODO: check undo redo
 
     def execute(self, context):
-        for obj in bpy.context.scene.camera.users_collection[0].objects:
+        for obj in context.scene.camera.users_collection[0].objects:
             if isinstance(obj.data, bpy.types.TextCurve):
                 annotation.Annotator.resize_text(obj)
         return {"FINISHED"}
@@ -789,7 +791,7 @@ class AddVariable(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        bpy.context.active_object.data.BIMTextProperties.variables.add()
+        context.active_object.data.BIMTextProperties.variables.add()
         return {"FINISHED"}
 
 
@@ -800,7 +802,7 @@ class RemoveVariable(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        bpy.context.active_object.data.BIMTextProperties.variables.remove(self.index)
+        context.active_object.data.BIMTextProperties.variables.remove(self.index)
         return {"FINISHED"}
 
 
@@ -810,8 +812,8 @@ class PropagateTextData(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        source = bpy.context.active_object
+        source = context.active_object
-        for obj in bpy.context.selected_objects:
+        for obj in context.selected_objects:
             if obj == source:
                 continue
             obj.data.body = source.data.body
@@ -834,7 +836,7 @@ class RemoveDrawing(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         camera = props.drawings[self.index].camera
         collection = camera.users_collection[0]
         for obj in collection.objects:
@@ -850,7 +852,7 @@ class AddDrawingStyle(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        new = bpy.context.scene.DocProperties.drawing_styles.add()
+        new = context.scene.DocProperties.drawing_styles.add()
         new.name = "New Drawing Style"
         return {"FINISHED"}
 
@@ -862,7 +864,7 @@ class RemoveDrawingStyle(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        bpy.context.scene.DocProperties.drawing_styles.remove(self.index)
+        context.scene.DocProperties.drawing_styles.remove(self.index)
         return {"FINISHED"}
 
 
@@ -924,11 +926,12 @@ class ActivateDrawingStyle(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        if context.scene.camera.data.BIMCameraProperties.active_drawing_style_index < len(
+        scene = context.scene
-            bpy.context.scene.DocProperties.drawing_styles
+        if scene.camera.data.BIMCameraProperties.active_drawing_style_index < len(
+            scene.DocProperties.drawing_styles
         ):
-            self.drawing_style = bpy.context.scene.DocProperties.drawing_styles[
+            self.drawing_style = scene.DocProperties.drawing_styles[
-                context.scene.camera.data.BIMCameraProperties.active_drawing_style_index
+                scene.camera.data.BIMCameraProperties.active_drawing_style_index
             ]
             self.set_raster_style()
             self.set_query()
@@ -1039,7 +1042,7 @@ class RemoveSheet(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         props.sheets.remove(self.index)
         return {"FINISHED"}
 
@@ -1050,8 +1053,8 @@ class AddSchedule(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        new = bpy.context.scene.DocProperties.schedules.add()
+        new = context.scene.DocProperties.schedules.add()
-        new.name = "SCHEDULE {}".format(len(bpy.context.scene.DocProperties.schedules))
+        new.name = "SCHEDULE {}".format(len(context.scene.DocProperties.schedules))
         return {"FINISHED"}
 
 
@@ -1062,7 +1065,7 @@ class RemoveSchedule(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         props.schedules.remove(self.index)
         return {"FINISHED"}
 
@@ -1076,7 +1079,7 @@ class SelectScheduleFile(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         props.schedules[props.active_schedule_index].file = self.filepath
         return {"FINISHED"}
 
@@ -1090,12 +1093,12 @@ class BuildSchedule(bpy.types.Operator):
     bl_label = "Build Schedule"
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         schedule = props.schedules[props.active_schedule_index]
         schedule_creator = scheduler.Scheduler()
-        outfile = os.path.join(bpy.context.scene.BIMProperties.data_dir, "schedules", schedule.name + ".svg")
+        outfile = os.path.join(context.scene.BIMProperties.data_dir, "schedules", schedule.name + ".svg")
         schedule_creator.schedule(schedule.file, outfile)
-        open_with_user_command(bpy.context.preferences.addons["blenderbim"].preferences.svg_command, outfile)
+        open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, outfile)
         return {"FINISHED"}
 
 
@@ -1106,9 +1109,9 @@ class AddScheduleToSheet(bpy.types.Operator):
     # TODO: check undo redo
 
     def execute(self, context):
-        props = bpy.context.scene.DocProperties
+        props = context.scene.DocProperties
         sheet_builder = sheeter.SheetBuilder()
-        sheet_builder.data_dir = bpy.context.scene.BIMProperties.data_dir
+        sheet_builder.data_dir = context.scene.BIMProperties.data_dir
         sheet_builder.add_schedule(
             props.schedules[props.active_schedule_index].name, props.sheets[props.active_sheet_index].name
         )
@@ -1121,7 +1124,7 @@ class AddDrawingStyleAttribute(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        props = bpy.context.scene.camera.data.BIMCameraProperties
+        props = context.scene.camera.data.BIMCameraProperties
         context.scene.DocProperties.drawing_styles[props.active_drawing_style_index].attributes.add()
         return {"FINISHED"}
 
@@ -1133,7 +1136,7 @@ class RemoveDrawingStyleAttribute(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        props = bpy.context.scene.camera.data.BIMCameraProperties
+        props = context.scene.camera.data.BIMCameraProperties
         context.scene.DocProperties.drawing_styles[props.active_drawing_style_index].attributes.remove(self.index)
         return {"FINISHED"}
 
@@ -1161,9 +1164,9 @@ class CleanWireframes(bpy.types.Operator):
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
-        objects = bpy.data.objects
+        objects = context.scene.objects
-        if bpy.context.selected_objects:
+        if context.selected_objects:
-            objects = bpy.context.selected_objects
+            objects = context.selected_objects
         for obj in objects:
             if not isinstance(obj.data, bpy.types.Mesh):
                 continue

src/blenderbim/blenderbim/bim/module/drawing/prop.py

@@ -57,10 +57,10 @@ def getDiagramScales(self, context):
     global diagram_scales_enum
     if (
         len(diagram_scales_enum) < 1
-        or (bpy.context.scene.unit_settings.system == "IMPERIAL" and len(diagram_scales_enum) == 13)
+        or (context.scene.unit_settings.system == "IMPERIAL" and len(diagram_scales_enum) == 13)
-        or (bpy.context.scene.unit_settings.system == "METRIC" and len(diagram_scales_enum) == 31)
+        or (context.scene.unit_settings.system == "METRIC" and len(diagram_scales_enum) == 31)
     ):
-        if bpy.context.scene.unit_settings.system == "IMPERIAL":
+        if context.scene.unit_settings.system == "IMPERIAL":
             diagram_scales_enum = [
                 ("CUSTOM", "Custom", ""),
                 ("1'=1'-0\"|1/1", "1'=1'-0\"", ""),

src/blenderbim/blenderbim/bim/module/unit/operator.py

@@ -234,13 +234,17 @@ class EnableEditingUnit(bpy.types.Operator):
         props = context.scene.BIMUnitProperties
         props.unit_attributes.clear()
         data = Data.units[self.unit]
-        blenderbim.bim.helper.import_attributes(data["type"], props.unit_attributes, data, self.import_attributes)
+        blenderbim.bim.helper.import_attributes(
+            data["type"],
+            props.unit_attributes, 
+            data, 
+            lambda name, prop, data: self.import_attributes(name, prop, data, context))
         props.active_unit_id = self.unit
         return {"FINISHED"}
 
-    def import_attributes(self, name, prop, data):
+    def import_attributes(self, name, prop, data, context):
         if name == "Dimensions":
-            new = bpy.context.scene.BIMUnitProperties.unit_attributes.add()
+            new = context.scene.BIMUnitProperties.unit_attributes.add()
             new.name = name
             new.is_null = data[name] is None
             new.is_optional = False

src/blenderbim/blenderbim/bim/operator.py

@@ -64,8 +64,8 @@ class ExportIFC(bpy.types.Operator):
     def _execute(self, context):
         start = time.time()
         logger = logging.getLogger("ExportIFC")
-        path_log = os.path.join(bpy.context.scene.BIMProperties.data_dir, "process.log")
+        path_log = os.path.join(context.scene.BIMProperties.data_dir, "process.log")
-        if not os.access(bpy.context.scene.BIMProperties.data_dir, os.W_OK):
+        if not os.access(context.scene.BIMProperties.data_dir, os.W_OK):
             path_log = os.path.join(tempfile.mkdtemp(), "process.log")
         logging.basicConfig(
             filename=path_log,