activate_drawing to prioritize already active representation

If there are multiple representations in the same subcontext, when it was searching for the representation for some specific subcontext, it would previously always switch to the first representation from the list, now it's going to prioritize the one that's already active.

src/blenderbim/blenderbim/tool/drawing.py

@@ -1647,20 +1647,25 @@ class Drawing(blenderbim.core.tool.Drawing):
 
         for element in filtered_elements:
             obj = tool.Ifc.get_object(element)
+            subcontext = tool.Geometry.get_active_representation(obj).ContextOfItems
+            current_representation_subcontext = tool.Geometry.get_subcontext_parameters(subcontext)
+
             for subcontext in subcontexts:
+                # prioritize already active representation if it matches the subcontext
+                # (element could have multiple representations in the same subcontext)
+                if subcontext == current_representation_subcontext:
+                    break
                 priority_representation = ifcopenshell.util.representation.get_representation(element, *subcontext)
                 if priority_representation:
-                    current_representation = tool.Geometry.get_active_representation(obj)
+                    blenderbim.core.geometry.switch_representation(
-                    if current_representation != priority_representation:
+                        tool.Ifc,
-                        blenderbim.core.geometry.switch_representation(
+                        tool.Geometry,
-                            tool.Ifc,
+                        obj=obj,
-                            tool.Geometry,
+                        representation=priority_representation,
-                            obj=obj,
+                        should_reload=False,
-                            representation=priority_representation,
+                        is_global=True,
-                            should_reload=False,
+                        should_sync_changes_first=True,
-                            is_global=True,
+                    )
-                            should_sync_changes_first=True,
-                        )
                     break
 
     @classmethod

src/blenderbim/blenderbim/tool/geometry.py

@@ -308,6 +308,14 @@ class Geometry(blenderbim.core.tool.Geometry):
             return active_representation.ContextOfItems
         return ifcopenshell.util.representation.get_context(tool.Ifc.get(), "Model", "Body", "MODEL_VIEW")
 
+    @classmethod
+    def get_subcontext_parameters(cls, subcontext):
+        return (
+            subcontext.ContextType,
+            subcontext.ContextIdentifier,
+            subcontext.TargetView,
+        )
+
     @classmethod
     def get_representation_by_context(cls, element, context):
         if element.is_a("IfcProduct") and element.Representation: