See #2887. Fix bad UI design that could lead to objects created with the unintended context.

src/blenderbim/blenderbim/bim/module/geometry/__init__.py

@@ -35,6 +35,7 @@ classes = (
     operator.SwitchRepresentation,
     operator.UpdateParametricRepresentation,
     operator.UpdateRepresentation,
+    prop.BIMObjectGeometryProperties,
     prop.BIMGeometryProperties,
     ui.BIM_PT_derived_placements,
     ui.BIM_PT_representations,
@@ -48,6 +49,7 @@ addon_keymaps = []
 
 
 def register():
+    bpy.types.Object.BIMGeometryProperties = bpy.props.PointerProperty(type=prop.BIMObjectGeometryProperties)
     bpy.types.Scene.BIMGeometryProperties = bpy.props.PointerProperty(type=prop.BIMGeometryProperties)
     bpy.types.OBJECT_PT_transform.append(ui.BIM_PT_transform)
     bpy.types.VIEW3D_MT_object.append(ui.object_menu)
@@ -71,6 +73,7 @@ def unregister():
     bpy.types.VIEW3D_MT_object.remove(ui.object_menu)
     bpy.types.OBJECT_PT_transform.remove(ui.BIM_PT_transform)
     del bpy.types.Scene.BIMGeometryProperties
+    del bpy.types.Object.BIMGeometryProperties
     wm = bpy.context.window_manager
     kc = wm.keyconfigs.addon
     if kc:

src/blenderbim/blenderbim/bim/module/geometry/data.py

@@ -35,6 +35,7 @@ class RepresentationsData:
     @classmethod
     def load(cls):
         cls.data = {"representations": cls.representations()}
+        cls.data["contexts"] = cls.contexts()
         cls.is_loaded = True
 
     @classmethod
@@ -64,6 +65,25 @@ class RepresentationsData:
             results.append(data)
         return results
 
+    @classmethod
+    def contexts(cls):
+        results = []
+        for element in tool.Ifc.get().by_type("IfcGeometricRepresentationContext", include_subtypes=False):
+            results.append((str(element.id()), element.ContextType or "Unnamed", ""))
+        for element in tool.Ifc.get().by_type("IfcGeometricRepresentationSubContext", include_subtypes=False):
+            results.append(
+                (
+                    str(element.id()),
+                    "{}/{}/{}".format(
+                        element.ContextType or "Unnamed",
+                        element.ContextIdentifier or "Unnamed",
+                        element.TargetView or "Unnamed",
+                    ),
+                    "",
+                )
+            )
+        return results
+
 
 class ConnectionsData:
     data = {}

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

@@ -34,7 +34,6 @@ import blenderbim.bim.handler
 from mathutils import Vector
 from blenderbim.bim import import_ifc
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.module.root.prop import get_contexts
 
 
 class Operator:
@@ -60,27 +59,20 @@ class AddRepresentation(bpy.types.Operator, Operator):
     bl_idname = "bim.add_representation"
     bl_label = "Add Representation"
     bl_options = {"REGISTER", "UNDO"}
-    obj: bpy.props.StringProperty()
-    context_id: bpy.props.IntProperty()
-    ifc_representation_class: bpy.props.StringProperty()
-    profile_set_usage: bpy.props.IntProperty()
 
     def _execute(self, context):
-        ifc_context = self.context_id
+        ifc_context = int(context.active_object.BIMGeometryProperties.contexts or "0") or None
-        if not ifc_context and get_contexts(self, context):
-            ifc_context = int(context.scene.BIMRootProperties.contexts or "0") or None
         if ifc_context:
             ifc_context = tool.Ifc.get().by_id(ifc_context)
-        obj = bpy.data.objects.get(self.obj) if self.obj else context.active_object
         core.add_representation(
             tool.Ifc,
             tool.Geometry,
             tool.Style,
             tool.Surveyor,
-            obj=obj,
+            obj=context.active_object,
             context=ifc_context,
-            ifc_representation_class=self.ifc_representation_class,
+            ifc_representation_class=None,
-            profile_set_usage=tool.Ifc.get().by_id(self.profile_set_usage) if self.profile_set_usage else None,
+            profile_set_usage=None,
         )
 
 

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

@@ -18,6 +18,7 @@
 
 import bpy
 from blenderbim.bim.prop import StrProperty, Attribute
+from blenderbim.bim.module.geometry.data import RepresentationsData
 from bpy.types import PropertyGroup
 from bpy.props import (
     PointerProperty,
@@ -31,6 +32,16 @@ from bpy.props import (
 )
 
 
+def get_contexts(self, context):
+    if not RepresentationsData.is_loaded:
+        RepresentationsData.load()
+    return RepresentationsData.data["contexts"]
+
+
+class BIMObjectGeometryProperties(PropertyGroup):
+    contexts: EnumProperty(items=get_contexts, name="Contexts")
+
+
 class BIMGeometryProperties(PropertyGroup):
     # Revit workaround
     should_use_presentation_style_assignment: BoolProperty(name="Force Presentation Style Assignment", default=False)

src/blenderbim/blenderbim/bim/module/geometry/ui.py

@@ -58,7 +58,7 @@ class BIM_PT_representations(Panel):
             layout.label(text="No representations found")
 
         row = layout.row(align=True)
-        prop_with_search(row, context.scene.BIMRootProperties, "contexts", text="")
+        prop_with_search(row, context.active_object.BIMGeometryProperties, "contexts", text="")
         row.operator("bim.add_representation", icon="ADD", text="")
 
         for representation in RepresentationsData.data["representations"]: