Material psets now include category-specific psets and docstrings

Previously it was not possible to get concrete / steel material psets. Yikes!

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

@@ -61,6 +61,15 @@ class Data:
             )
         return sorted(results, key=lambda v: v["Name"])
 
+    @classmethod
+    def format_pset_enum(cls, psets):
+        enum_items = []
+        version = tool.Ifc.get_schema()
+        for pset in psets:
+            doc = ifcopenshell.util.doc.get_property_set_doc(version, pset.Name) or {}
+            enum_items.append((pset.Name, pset.Name, doc.get("description", "")))
+        return enum_items
+
 
 class ObjectPsetsData(Data):
     data = {}
@@ -114,15 +123,6 @@ class ObjectPsetsData(Data):
         )
         return cls.format_pset_enum(qtos)
 
-    @classmethod
-    def format_pset_enum(cls, psets):
-        enum_items = []
-        version = tool.Ifc.get_schema()
-        for pset in psets:
-            doc = ifcopenshell.util.doc.get_property_set_doc(version, pset.Name) or {}
-            enum_items.append((pset.Name, pset.Name, doc.get("description", "")))
-        return enum_items
-
 
 class ObjectQtosData(Data):
     data = {}
@@ -165,9 +165,26 @@ class MaterialPsetsData(Data):
         cls.data = {
             "ifc_definition_id": ifc_definition_id,
             "psets": cls.psetqtos(tool.Ifc.get().by_id(ifc_definition_id)),
+            "pset_name": cls.pset_name(),
         }
         cls.is_loaded = True
 
+    @classmethod
+    def pset_name(cls):
+        props = bpy.context.scene.BIMMaterialProperties
+        if props.materials and props.active_material_index < len(props.materials):
+            material = props.materials[props.active_material_index]
+            if material.ifc_definition_id:
+                material = tool.Ifc.get().by_id(material.ifc_definition_id)
+                category = getattr(material, "Category", None) or None
+                psets = blenderbim.bim.schema.ifc.psetqto.get_applicable("IfcMaterial", category, pset_only=True)
+                psetnames = cls.format_pset_enum(psets)
+                assigned_names = ifcopenshell.util.element.get_psets(
+                    material, psets_only=True, should_inherit=False
+                ).keys()
+                return [p for p in psetnames if p[0] not in assigned_names]
+        return []
+
 
 class MaterialSetPsetsData(Data):
     data = {}

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

@@ -23,7 +23,7 @@ import ifcopenshell.util.attribute
 import ifcopenshell.util.element
 import blenderbim.tool as tool
 from blenderbim.bim.prop import Attribute, StrProperty
-from blenderbim.bim.module.pset.data import AddEditCustomPropertiesData, ObjectPsetsData
+from blenderbim.bim.module.pset.data import AddEditCustomPropertiesData, ObjectPsetsData, MaterialPsetsData
 from blenderbim.bim.ifc import IfcStore
 from bpy.types import PropertyGroup
 from bpy.props import (
@@ -89,12 +89,9 @@ def get_object_pset_name(self, context):
 
 
 def get_material_pset_names(self, context):
-    global psetnames
-    ifc_class = "IfcMaterial"
-    if ifc_class not in psetnames:
-        psets = blenderbim.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
-        psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
-    return psetnames[ifc_class]
+    if not MaterialPsetsData.is_loaded:
+        MaterialPsetsData.load()
+    return MaterialPsetsData.data["pset_name"]
 
 
 def get_material_set_pset_names(self, context):

src/ifcopenshell-python/ifcopenshell/util/pset.py

@@ -103,7 +103,8 @@ class PsetQto:
             matched_type = match.group(3)
             if matched_type and not predefined_type:
                 continue
-            elif matched_type and predefined_type != match.group(3):
+            # Case insensitive to handle things like material categories
+            elif matched_type and predefined_type.lower() != match.group(3).lower():
                 continue
 
             applicable_class = match.group(1)

src/ifcopenshell-python/test/util/test_pset.py

@@ -60,3 +60,9 @@ class TestPsetQto:
         names = self.pset_qto.get_applicable_names("IfcFurnitureType" )
         names2 = self.pset_qto.get_applicable_names("IfcFurnitureType", "CUSTOM")
         assert names == names2
+
+    def test_getting_applicables_for_a_material_category(self):
+        names = self.pset_qto.get_applicable_names("IfcMaterial")
+        assert "Pset_MaterialConcrete" not in names
+        names = self.pset_qto.get_applicable_names("IfcMaterial", "concrete")
+        assert "Pset_MaterialConcrete" in names