Fix bug where assigning a new constituent or profile was borked. Also you can now reorder material lists and constituent set items.

src/ifcblenderexport/blenderbim/bim/module/material/__init__.py

@@ -10,7 +10,7 @@ classes = (
     operator.RemoveConstituent,
     operator.AddLayer,
     operator.RemoveLayer,
-    operator.ReorderLayer,
+    operator.ReorderMaterialSetItem,
     operator.AddListItem,
     operator.RemoveListItem,
     operator.EnableEditingAssignedMaterial,

src/ifcblenderexport/blenderbim/bim/module/material/assign_material.py

@@ -13,7 +13,6 @@ class Usecase:
             self.assign_ifc_material()
         elif self.settings["type"] == "IfcMaterialConstituentSet":
             material_set = self.file.create_entity(self.settings["type"])
-            material_set.MaterialConstituents = [self.settings["material"]]
             self.create_material_association(material_set)
         elif self.settings["type"] == "IfcMaterialLayerSet":
             material_set = self.file.create_entity(self.settings["type"])
@@ -24,7 +23,6 @@ class Usecase:
             self.create_material_association(material_set_usage)
         elif self.settings["type"] == "IfcMaterialProfileSet":
             material_set = self.file.create_entity(self.settings["type"])
-            material_set.MaterialProfiles = [self.settings["material"]]
             self.create_material_association(material_set)
         elif self.settings["type"] == "IfcMaterialList":
             material_set = self.file.create_entity(self.settings["type"])

src/ifcblenderexport/blenderbim/bim/module/material/operator.py

@@ -8,7 +8,7 @@ import blenderbim.bim.module.material.remove_constituent as remove_constituent
 import blenderbim.bim.module.material.add_layer as add_layer
 import blenderbim.bim.module.material.edit_layer as edit_layer
 import blenderbim.bim.module.material.remove_layer as remove_layer
-import blenderbim.bim.module.material.reorder_layer as reorder_layer
+import blenderbim.bim.module.material.reorder_set_item as reorder_set_item
 import blenderbim.bim.module.material.add_list_item as add_list_item
 import blenderbim.bim.module.material.remove_list_item as remove_list_item
 import blenderbim.bim.module.material.edit_assigned_material as edit_assigned_material
@@ -138,26 +138,34 @@ class AddLayer(bpy.types.Operator):
         return {"FINISHED"}
 
 
-class ReorderLayer(bpy.types.Operator):
+class ReorderMaterialSetItem(bpy.types.Operator):
-    bl_idname = "bim.reorder_layer"
+    bl_idname = "bim.reorder_material_set_item"
-    bl_label = "Reorder Layer"
+    bl_label = "Reorder Material Set Item"
     obj: bpy.props.StringProperty()
     old_index: bpy.props.IntProperty()
     new_index: bpy.props.IntProperty()
-    layer_set: bpy.props.IntProperty()
+    material_set: bpy.props.IntProperty()
 
     def execute(self, context):
         obj = bpy.data.objects.get(self.obj) if self.obj else bpy.context.active_object
         self.file = IfcStore.get_file()
-        reorder_layer.Usecase(
+        material_set = self.file.by_id(self.material_set)
+        reorder_set_item.Usecase(
             self.file,
             {
-                "layer_set": self.file.by_id(self.layer_set),
+                "material_set": material_set,
                 "old_index": self.old_index,
                 "new_index": self.new_index,
             },
         ).execute()
-        Data.load_layers()
+        if material_set.is_a("IfcMaterialConstituentSet"):
+            Data.load_constituents()
+        elif material_set.is_a("IfcMaterialLayerSet"):
+            Data.load_layers()
+        elif material_set.is_a("IfcMaterialProfileSet"):
+            Data.load_profiles()
+        elif material_set.is_a("IfcMaterialList"):
+            Data.load_lists()
         return {"FINISHED"}
 
 

src/ifcblenderexport/blenderbim/bim/module/material/reorder_layer.py

@@ -1,11 +0,0 @@
-class Usecase:
-    def __init__(self, file, settings=None):
-        self.file = file
-        self.settings = {"layer_set": None, "old_index": 0, "new_index": 0}
-        for key, value in settings.items():
-            self.settings[key] = value
-
-    def execute(self):
-        layers = list(self.settings["layer_set"].MaterialLayers or [])
-        layers.insert(self.settings["new_index"], layers.pop(self.settings["old_index"]))
-        self.settings["layer_set"].MaterialLayers = layers

src/ifcblenderexport/blenderbim/bim/module/material/reorder_set_item.py

@@ -0,0 +1,19 @@
+class Usecase:
+    def __init__(self, file, settings=None):
+        self.file = file
+        self.settings = {"material_set": None, "old_index": 0, "new_index": 0}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        if self.settings["material_set"].is_a("IfcMaterialConstituentSet"):
+            set_name = "MaterialConstituents"
+        elif self.settings["material_set"].is_a("IfcMaterialLayerSet"):
+            set_name = "MaterialLayers"
+        elif self.settings["material_set"].is_a("IfcMaterialProfileSet"):
+            set_name = "MaterialProfiles"
+        elif self.settings["material_set"].is_a("IfcMaterialList"):
+            set_name = "Materials"
+        items = list(getattr(self.settings["material_set"], set_name) or [])
+        items.insert(self.settings["new_index"], items.pop(self.settings["old_index"]))
+        setattr(self.settings["material_set"], set_name, items)

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

@@ -12,7 +12,7 @@ class BIM_PT_material(Panel):
 
     @classmethod
     def poll(cls, context):
-        return IfcStore.get_file()
+        return IfcStore.get_file() and context.active_object and context.active_object.active_material
 
     def draw(self, context):
         row = self.layout.row()
@@ -185,15 +185,15 @@ class BIM_PT_object_material(Panel):
             row.label(text=Data.materials[item["Material"]]["Name"], icon="MATERIAL")
 
         if not is_first:
-            op = row.operator(f"bim.reorder_{self.set_item_name}", icon="TRIA_UP", text="")
+            op = row.operator(f"bim.reorder_material_set_item", icon="TRIA_UP", text="")
             op.old_index = index
             op.new_index = index - 1
-            setattr(op, f"{self.set_item_name}_set", self.material_set_id)
+            setattr(op, "material_set", self.material_set_id)
         if not is_last:
-            op = row.operator(f"bim.reorder_{self.set_item_name}", icon="TRIA_DOWN", text="")
+            op = row.operator(f"bim.reorder_material_set_item", icon="TRIA_DOWN", text="")
             op.old_index = index
             op.new_index = index + 1
-            setattr(op, f"{self.set_item_name}_set", self.material_set_id)
+            setattr(op, "material_set", self.material_set_id)
         if not self.props.active_material_set_item_id and self.product_data["type"] != "IfcMaterialList":
             op = row.operator("bim.enable_editing_material_set_item", icon="GREASEPENCIL", text="")
             op.material_set_item = set_item_id

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

@@ -175,6 +175,8 @@ class BIM_PT_material_psets(Panel):
     def poll(cls, context):
         if not context.active_object:
             return False
+        if not context.active_object.active_material:
+            return False
         props = context.active_object.active_material.BIMObjectProperties
         if not props.ifc_definition_id:
             return False