WIP refactor representation editing into geometry module. See #1222. Some new functionality as a result:

- Representations can now be added to any context, even invalid ones, non-subcontext, or missing target views
 - Switching representations now change all linked data objects

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

@@ -0,0 +1,37 @@
+import bpy
+from bpy.types import Panel
+from blenderbim.bim.module.geometry.data import Data
+
+
+class BIM_PT_representations(Panel):
+    bl_label = "IFC Representations"
+    bl_idname = "BIM_PT_representations"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "object"
+
+    def draw(self, context):
+        layout = self.layout
+        props = context.active_object.BIMObjectProperties
+
+        if props.ifc_definition_id not in Data.products:
+            Data.load(props.ifc_definition_id)
+
+        representations = Data.products[props.ifc_definition_id]["Representations"]
+        if not representations:
+            layout.label(text="No representations found")
+
+        row = layout.row(align=True)
+        row.prop(bpy.context.scene.BIMProperties, "contexts", text="")
+        row.operator("bim.add_representation", icon="ADD", text="")
+
+        for ifc_definition_id, representation in representations.items():
+            row = self.layout.row(align=True)
+            row.label(text=representation["ContextOfItems"]["ContextType"])
+            row.label(text=representation["ContextOfItems"]["ContextIdentifier"])
+            row.label(text=representation["ContextOfItems"]["TargetView"])
+            row.label(text=representation["RepresentationType"])
+            row.operator("bim.switch_representation", icon="OUTLINER_DATA_MESH", text="").ifc_definition_id = ifc_definition_id
+            row.operator("bim.remove_representation", icon="X", text="").ifc_definition_id = ifc_definition_id
+