#2094. You can now add material sets independently of IFC objects in the material manager

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

@@ -21,10 +21,10 @@ from . import ui, prop, operator
 
 classes = (
     operator.AddConstituent,
-    operator.AddDefaultMaterial,
     operator.AddLayer,
     operator.AddListItem,
     operator.AddMaterial,
+    operator.AddMaterialSet,
     operator.AddProfile,
     operator.AssignMaterial,
     operator.AssignParameterizedProfile,

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

@@ -79,45 +79,29 @@ class AssignParameterizedProfile(bpy.types.Operator):
         return {"FINISHED"}
 
 
-class AddDefaultMaterial(bpy.types.Operator, tool.Ifc.Operator):
+class AddMaterial(bpy.types.Operator, tool.Ifc.Operator):
-    bl_idname = "bim.add_default_material"
-    bl_label = "Add Default Material"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def _execute(self, context):
-        core.add_default_material(tool.Ifc, tool.Material)
-        Data.load(IfcStore.get_file())
-
-
-class AddMaterial(bpy.types.Operator):
     bl_idname = "bim.add_material"
     bl_label = "Add Material"
     bl_options = {"REGISTER", "UNDO"}
     obj: bpy.props.StringProperty()
 
-    def execute(self, context):
-        return IfcStore.execute_ifc_operator(self, context)
-
     def _execute(self, context):
-        obj = bpy.data.materials.get(self.obj) if self.obj else context.active_object.active_material
+        obj = bpy.data.materials.get(self.obj) if self.obj else None
-        self.file = IfcStore.get_file()
+        core.add_material(tool.Ifc, tool.Material, tool.Style, obj=obj)
-        result = ifcopenshell.api.run("material.add_material", self.file, **{"name": obj.name})
+        Data.load(IfcStore.get_file())
-        IfcStore.link_element(result, obj)
+        material_prop_purge()
-        if obj.BIMMaterialProperties.ifc_style_id:
+
-            context = ifcopenshell.util.representation.get_context(self.file, "Model", "Body", "MODEL_VIEW")
+
-            if context:
+class AddMaterialSet(bpy.types.Operator, tool.Ifc.Operator):
-                ifcopenshell.api.run(
+    bl_idname = "bim.add_material_set"
-                    "style.assign_material_style",
+    bl_label = "Add Material Set"
-                    self.file,
+    bl_options = {"REGISTER", "UNDO"}
-                    **{
+    set_type: bpy.props.StringProperty()
-                        "material": result,
+
-                        "style": self.file.by_id(obj.BIMMaterialProperties.ifc_style_id),
+    def _execute(self, context):
-                        "context": context,
+        core.add_material_set(tool.Ifc, tool.Material, set_type=self.set_type)
-                    },
-                )
         Data.load(IfcStore.get_file())
         material_prop_purge()
-        return {"FINISHED"}
 
 
 class RemoveMaterial(bpy.types.Operator):

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

@@ -54,6 +54,14 @@ class BIM_PT_materials(Panel):
             row.operator("bim.load_materials", text="", icon="IMPORT")
             return
 
+        row = self.layout.row(align=True)
+        row.alignment = "RIGHT"
+
+        if self.props.material_type == "IfcMaterial":
+            row.operator("bim.add_material", text="", icon="ADD")
+        else:
+            row.operator("bim.add_material_set", text="", icon="ADD").set_type = self.props.material_type
+
         self.layout.template_list("BIM_UL_materials", "", self.props, "materials", self.props, "active_material_index")
 
 
@@ -74,7 +82,8 @@ class BIM_PT_material(Panel):
             row.operator("bim.remove_material", icon="X", text="Remove IFC Material")
             row.operator("bim.unlink_material", icon="UNLINKED", text="")
         else:
-            row.operator("bim.add_material", icon="ADD", text="Create IFC Material")
+            op = row.operator("bim.add_material", icon="ADD", text="Create IFC Material")
+            op.obj = context.active_object.active_material.name
 
 
 class BIM_PT_object_material(Panel):
@@ -113,7 +122,7 @@ class BIM_PT_object_material(Panel):
         if not Data.materials:
             row = self.layout.row(align=True)
             row.label(text="No Materials Available")
-            row.operator("bim.add_default_material", icon="ADD", text="")
+            row.operator("bim.add_material", icon="ADD", text="").obj = ""
             return
 
         if self.product_data:

src/blenderbim/blenderbim/core/material.py

@@ -21,10 +21,26 @@ def unlink_material(ifc, obj=None):
     ifc.unlink(obj=obj)
 
 
-def add_default_material(ifc, material):
+def add_material(ifc, material, style, obj=None):
-    obj = material.add_default_material_object()
+    if not obj:
-    ifc.link(ifc.run("material.add_material", name="Default"), obj)
+        obj = material.add_default_material_object()
-    return obj
+    ifc_material = ifc.run("material.add_material", name=material.get_name(obj))
+    ifc.link(ifc_material, obj)
+    ifc_style = style.get_style(obj)
+    if ifc_style:
+        context = style.get_context(obj)
+        if context:
+            ifc.run("style.assign_material_style", material=ifc_material, style=ifc_style, context=context)
+    if material.is_editing_materials():
+        material.import_material_definitions(material.get_active_material_type())
+    return ifc_material
+
+
+def add_material_set(ifc, material, set_type=None):
+    ifc_material = ifc.run("material.add_material_set", name="Unnamed", set_type=set_type)
+    if material.is_editing_materials():
+        material.import_material_definitions(material.get_active_material_type())
+    return ifc_material
 
 
 def load_materials(material, material_type):

src/blenderbim/blenderbim/core/tool.py

@@ -278,7 +278,10 @@ class Material:
     def add_default_material_object(cls): pass
     def disable_editing_materials(cls): pass
     def enable_editing_materials(cls): pass
+    def get_active_material_type(cls): pass
+    def get_name(cls, obj): pass
     def import_material_definitions(cls, material_type): pass
+    def is_editing_materials(cls): pass
 
 
 @interface

src/blenderbim/blenderbim/tool/material.py

@@ -36,6 +36,14 @@ class Material(blenderbim.core.tool.Material):
     def enable_editing_materials(cls):
         bpy.context.scene.BIMMaterialProperties.is_editing = True
 
+    @classmethod
+    def get_active_material_type(cls):
+        return bpy.context.scene.BIMMaterialProperties.material_type
+
+    @classmethod
+    def get_name(cls, obj):
+        return obj.name
+
     @classmethod
     def import_material_definitions(cls, material_type):
         props = bpy.context.scene.BIMMaterialProperties
@@ -49,3 +57,7 @@ class Material(blenderbim.core.tool.Material):
                 new.name = "Unnamed"
             else:
                 new.name = material.Name or "Unnamed"
+
+    @classmethod
+    def is_editing_materials(cls):
+        return bpy.context.scene.BIMMaterialProperties.is_editing

src/blenderbim/test/bim/feature/material.feature

@@ -3,20 +3,33 @@ Feature: Material
 
 Scenario: Load materials
     Given an empty IFC project
-    And I press "bim.add_default_material"
+    And I press "bim.add_material(obj='')"
     When I press "bim.load_materials"
     Then nothing happens
 
 Scenario: Disable editing materials
     Given an empty IFC project
-    And I press "bim.add_default_material"
+    And I press "bim.add_material(obj='')"
     And I press "bim.load_materials"
     When I press "bim.disable_editing_materials"
     Then nothing happens
 
+Scenario: Load materials - then add material
+    Given an empty IFC project
+    And I press "bim.load_materials"
+    When I press "bim.add_material(obj='')"
+    Then the material "Default" exists
+
+Scenario: Load materials - then add material set
+    Given an empty IFC project
+    And I set "scene.BIMMaterialProperties.material_type" to "IfcMaterialLayerSet"
+    And I press "bim.load_materials"
+    When I press "bim.add_material_set(set_type='IfcMaterialLayerSet')"
+    Then nothing happens
+
 Scenario: Add default material
     Given an empty IFC project
-    When I press "bim.add_default_material"
+    When I press "bim.add_material(obj='')"
     Then the material "Default" exists
 
 Scenario: Add material
@@ -24,7 +37,7 @@ Scenario: Add material
     And I add a cube
     And the object "Cube" is selected
     And I add a material
-    When I press "bim.add_material"
+    When I press "bim.add_material(obj='Material')"
     Then the material "Material" is an IFC material
 
 Scenario: Remove material
@@ -32,7 +45,7 @@ Scenario: Remove material
     And I add a cube
     And the object "Cube" is selected
     And I add a material
-    And I press "bim.add_material"
+    And I press "bim.add_material(obj='Material')"
     When I press "bim.remove_material"
     Then the material "Material" is not an IFC material
 
@@ -41,7 +54,7 @@ Scenario: Unlink material
     And I add a cube
     And the object "Cube" is selected
     And I add a material
-    And I press "bim.add_material"
+    And I press "bim.add_material(obj='Material')"
     When I press "bim.unlink_material"
     Then the material "Material" is not an IFC material
 
@@ -51,7 +64,7 @@ Scenario: Assign material - Assign a material
     And the object "Cube" is selected
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
     And I press "bim.assign_class"
-    And I press "bim.add_default_material"
+    And I press "bim.add_material(obj='')"
     When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterial"
     And I press "bim.assign_material"
     Then the object "IfcWall/Cube" has the material "Default"
@@ -67,7 +80,7 @@ Scenario: Assign material - Assign a material layer set
     And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
     And I press "bim.assign_class"
-    And I press "bim.add_default_material"
+    And I press "bim.add_material(obj='')"
     When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialLayerSet"
     And I press "bim.assign_material"
     Then nothing happens
@@ -83,7 +96,7 @@ Scenario: Assign material - Assign a material profile set
     And I set "scene.BIMRootProperties.ifc_product" to "IfcElementType"
     And I set "scene.BIMRootProperties.ifc_class" to "IfcWallType"
     And I press "bim.assign_class"
-    And I press "bim.add_default_material"
+    And I press "bim.add_material(obj='')"
     When I set "active_object.BIMObjectMaterialProperties.material_type" to "IfcMaterialProfileSet"
     And I press "bim.assign_material"
     Then nothing happens

src/blenderbim/test/core/test_material.py

@@ -17,7 +17,7 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import blenderbim.core.material as subject
-from test.core.bootstrap import ifc, material
+from test.core.bootstrap import ifc, material, style
 
 
 class TestUnlinkMaterial:
@@ -26,12 +26,70 @@ class TestUnlinkMaterial:
         subject.unlink_material(ifc, obj="obj")
 
 
-class TestAddDefaultMaterial:
+class TestAddMaterial:
-    def test_run(self, ifc, material):
+    def test_add_a_default_material(self, ifc, material, style):
         material.add_default_material_object().should_be_called().will_return("obj")
-        ifc.run("material.add_material", name="Default").should_be_called().will_return("material")
+        material.get_name("obj").should_be_called().will_return("name")
+        ifc.run("material.add_material", name="name").should_be_called().will_return("material")
         ifc.link("material", "obj").should_be_called()
-        assert subject.add_default_material(ifc, material) == "obj"
+        style.get_style("obj").should_be_called().will_return(None)
+        material.is_editing_materials().should_be_called().will_return(False)
+        assert subject.add_material(ifc, material, style) == "material"
+
+    def test_add_a_material_to_a_blender_material_object(self, ifc, material, style):
+        material.get_name("obj").should_be_called().will_return("name")
+        ifc.run("material.add_material", name="name").should_be_called().will_return("material")
+        ifc.link("material", "obj").should_be_called()
+        style.get_style("obj").should_be_called().will_return(None)
+        material.is_editing_materials().should_be_called().will_return(False)
+        assert subject.add_material(ifc, material, style, obj="obj") == "material"
+
+    def test_reloading_imported_materials_if_you_are_editing_scene_materials(self, ifc, material, style):
+        material.get_name("obj").should_be_called().will_return("name")
+        ifc.run("material.add_material", name="name").should_be_called().will_return("material")
+        ifc.link("material", "obj").should_be_called()
+        style.get_style("obj").should_be_called().will_return(None)
+        material.is_editing_materials().should_be_called().will_return(True)
+        material.get_active_material_type().should_be_called().will_return("material_type")
+        material.import_material_definitions("material_type").should_be_called()
+        assert subject.add_material(ifc, material, style, obj="obj") == "material"
+
+    def test_add_a_style_to_the_material_if_the_object_also_has_an_attached_style(self, ifc, material, style):
+        material.get_name("obj").should_be_called().will_return("name")
+        ifc.run("material.add_material", name="name").should_be_called().will_return("material")
+        ifc.link("material", "obj").should_be_called()
+        style.get_style("obj").should_be_called().will_return("style")
+        style.get_context("obj").should_be_called().will_return("context")
+        ifc.run("style.assign_material_style", material="material", style="style", context="context").should_be_called()
+        material.is_editing_materials().should_be_called().will_return(False)
+        assert subject.add_material(ifc, material, style, obj="obj") == "material"
+
+    def test_not_adding_a_style_if_there_is_no_style_context_available(self, ifc, material, style):
+        material.get_name("obj").should_be_called().will_return("name")
+        ifc.run("material.add_material", name="name").should_be_called().will_return("material")
+        ifc.link("material", "obj").should_be_called()
+        style.get_style("obj").should_be_called().will_return("style")
+        style.get_context("obj").should_be_called().will_return(None)
+        material.is_editing_materials().should_be_called().will_return(False)
+        assert subject.add_material(ifc, material, style, obj="obj") == "material"
+
+
+class TestAddMaterialSet:
+    def test_adding_a_material_set(self, ifc, material):
+        ifc.run("material.add_material_set", name="Unnamed", set_type="set_type").should_be_called().will_return(
+            "material"
+        )
+        material.is_editing_materials().should_be_called().will_return(False)
+        assert subject.add_material_set(ifc, material, set_type="set_type") == "material"
+
+    def test_adding_a_material_set_and_reloading_imported_materials(self, ifc, material):
+        ifc.run("material.add_material_set", name="Unnamed", set_type="set_type").should_be_called().will_return(
+            "material"
+        )
+        material.is_editing_materials().should_be_called().will_return(True)
+        material.get_active_material_type().should_be_called().will_return("material_type")
+        material.import_material_definitions("material_type").should_be_called()
+        assert subject.add_material_set(ifc, material, set_type="set_type") == "material"
 
 
 class TestLoadMaterials:

src/blenderbim/test/tool/test_material.py

@@ -50,6 +50,21 @@ class TestEnableEditingMaterials(NewFile):
         assert bpy.context.scene.BIMMaterialProperties.is_editing is True
 
 
+class TestGetActiveMaterialType(NewFile):
+    def test_run(self):
+        ifc = ifcopenshell.file()
+        tool.Ifc.set(ifc)
+        bpy.context.scene.BIMMaterialProperties.material_type = "IfcMaterial"
+        assert subject.get_active_material_type() == "IfcMaterial"
+        bpy.context.scene.BIMMaterialProperties.material_type = "IfcMaterialLayerSet"
+        assert subject.get_active_material_type() == "IfcMaterialLayerSet"
+
+
+class TestGetName(NewFile):
+    def test_run(self):
+        assert subject.get_name(bpy.data.materials.new("Material")) == "Material"
+
+
 class TestImportMaterialDefinitions(NewFile):
     def test_import_materials(self):
         ifc = ifcopenshell.file()
@@ -95,3 +110,11 @@ class TestImportMaterialDefinitions(NewFile):
         props = bpy.context.scene.BIMMaterialProperties
         assert props.materials[0].ifc_definition_id == material.id()
         assert props.materials[0].name == "Unnamed"
+
+
+class TestIsEditingMaterials(NewFile):
+    def test_run(self):
+        bpy.context.scene.BIMMaterialProperties.is_editing = False
+        subject.is_editing_materials() is False
+        bpy.context.scene.BIMMaterialProperties.is_editing = True
+        subject.is_editing_materials() is True