You can now assign and unassign library references

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

@@ -21,21 +21,25 @@ from . import ui, prop, operator
 
 classes = (
     operator.AddLibrary,
-    operator.RemoveLibrary,
-    operator.EnableEditingLibraryReferences,
-    operator.DisableEditingLibraryReferences,
-    operator.EnableEditingLibrary,
-    operator.DisableEditingLibrary,
-    operator.EditLibrary,
     operator.AddLibraryReference,
-    operator.RemoveLibraryReference,
-    operator.EnableEditingLibraryReference,
+    operator.AssignLibraryReference,
+    operator.DisableEditingLibrary,
     operator.DisableEditingLibraryReference,
+    operator.DisableEditingLibraryReferences,
+    operator.EditLibrary,
     operator.EditLibraryReference,
+    operator.EnableEditingLibrary,
+    operator.EnableEditingLibraryReference,
+    operator.EnableEditingLibraryReferences,
+    operator.RemoveLibrary,
+    operator.RemoveLibraryReference,
+    operator.UnassignLibraryReference,
     prop.LibraryReference,
     prop.BIMLibraryProperties,
     ui.BIM_PT_libraries,
+    ui.BIM_PT_library_references,
     ui.BIM_UL_library_references,
+    ui.BIM_UL_object_library_references,
 )
 
 

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

@@ -22,6 +22,7 @@ import blenderbim.tool as tool
 
 def refresh():
     LibrariesData.is_loaded = False
+    LibraryReferencesData.is_loaded = False
 
 
 class LibrariesData:
@@ -78,3 +79,32 @@ class LibrariesData:
             if value is not None:
                 results.append({"name": key, "value": str(value)})
         return results
+
+
+class LibraryReferencesData:
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.is_loaded = True
+        cls.data = {
+            "references": cls.references(),
+        }
+
+    @classmethod
+    def references(cls):
+        results = []
+        for rel in getattr(tool.Ifc.get_entity(bpy.context.active_object), "HasAssociations", []):
+            if rel.is_a("IfcRelAssociatesLibrary"):
+                library = rel.RelatingLibrary
+                results.append(
+                    {
+                        "id": library.id(),
+                        "identification": library.ItemReference
+                        if tool.Ifc.get_schema() == "IFC2X3"
+                        else library.Identification,
+                        "name": library.Name or "Unnamed",
+                    }
+                )
+        return results

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

@@ -141,3 +141,27 @@ class EditLibraryReference(bpy.types.Operator, Operator):
 
     def _execute(self, context):
         core.edit_library_reference(tool.Ifc, tool.Library)
+
+
+class AssignLibraryReference(bpy.types.Operator, Operator):
+    bl_idname = "bim.assign_library_reference"
+    bl_label = "Assign Library Reference"
+    bl_options = {"REGISTER", "UNDO"}
+    reference: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        core.assign_library_reference(
+            tool.Ifc, obj=context.active_object, reference=tool.Ifc.get().by_id(self.reference)
+        )
+
+
+class UnassignLibraryReference(bpy.types.Operator, Operator):
+    bl_idname = "bim.unassign_library_reference"
+    bl_label = "Unassign Library Reference"
+    bl_options = {"REGISTER", "UNDO"}
+    reference: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        core.unassign_library_reference(
+            tool.Ifc, obj=context.active_object, reference=tool.Ifc.get().by_id(self.reference)
+        )

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

@@ -19,7 +19,7 @@
 import blenderbim.bim.helper
 import blenderbim.tool as tool
 from bpy.types import Panel, UIList
-from blenderbim.bim.module.library.data import LibrariesData
+from blenderbim.bim.module.library.data import LibrariesData, LibraryReferencesData
 
 
 class BIM_PT_libraries(Panel):
@@ -87,11 +87,44 @@ class BIM_PT_libraries(Panel):
         row.operator("bim.add_library", icon="ADD")
         for library in LibrariesData.data["libraries"]:
             row = self.layout.row(align=True)
-            row.label(text=library["name"])
+            row.label(text=library["name"], icon="ASSET_MANAGER")
             row.operator("bim.enable_editing_library_references", text="", icon="OUTLINER").library = library["id"]
             row.operator("bim.remove_library", text="", icon="X").library = library["id"]
 
 
+class BIM_PT_library_references(Panel):
+    bl_label = "IFC Library References"
+    bl_idname = "BIM_PT_library_references"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "object"
+
+    @classmethod
+    def poll(cls, context):
+        return tool.Ifc.get()
+
+    def draw(self, context):
+        if not LibraryReferencesData.is_loaded:
+            LibraryReferencesData.load()
+        self.props = context.scene.BIMLibraryProperties
+
+        if self.props.editing_mode == "REFERENCES":
+            self.layout.template_list(
+                "BIM_UL_object_library_references", "", self.props, "references", self.props, "active_reference_index"
+            )
+
+        if not LibraryReferencesData.data["references"]:
+            row = self.layout.row()
+            row.label(text="No References")
+
+        for reference in LibraryReferencesData.data["references"]:
+            row = self.layout.row(align=True)
+            row.label(text=reference["identification"], icon="ASSET_MANAGER")
+            row.label(text=reference["name"])
+            row.operator("bim.unassign_library_reference", text="", icon="X").reference = reference["id"]
+
+
 class BIM_UL_library_references(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
         if item:
@@ -101,3 +134,12 @@ class BIM_UL_library_references(UIList):
             op.reference = item.ifc_definition_id
             op = row.operator("bim.remove_library_reference", text="", icon="X")
             op.reference = item.ifc_definition_id
+
+
+class BIM_UL_object_library_references(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=item.name)
+            op = row.operator("bim.assign_library_reference", text="", icon="ADD")
+            op.reference = item.ifc_definition_id

src/blenderbim/blenderbim/core/library.py

@@ -80,3 +80,11 @@ def edit_library_reference(ifc, library):
     attributes = library.export_reference_attributes()
     ifc.run("library.edit_reference", reference=active_reference, attributes=attributes)
     library.import_references(library.get_active_library())
+
+
+def assign_library_reference(ifc, obj=None, reference=None):
+    ifc.run("library.assign_reference", product=ifc.get_entity(obj), reference=reference)
+
+
+def unassign_library_reference(ifc, obj=None, reference=None):
+    ifc.run("library.unassign_reference", product=ifc.get_entity(obj), reference=reference)

src/blenderbim/blenderbim/tool/library.py

@@ -47,11 +47,13 @@ class Library(blenderbim.core.tool.Library):
     @classmethod
     def import_library_attributes(cls, library):
         props = bpy.context.scene.BIMLibraryProperties
+        props.library_attributes.clear()
         blenderbim.bim.helper.import_attributes2(library, props.library_attributes)
 
     @classmethod
     def import_reference_attributes(cls, reference):
         props = bpy.context.scene.BIMLibraryProperties
+        props.reference_attributes.clear()
         blenderbim.bim.helper.import_attributes2(reference, props.reference_attributes)
 
     @classmethod

src/blenderbim/test/bim/feature/library.feature

@@ -103,3 +103,34 @@ Scenario: Edit library reference
     And I press "bim.enable_editing_library_reference(reference={reference})"
     When I press "bim.edit_library_reference()"
     Then nothing happens
+
+Scenario: Assign library reference
+    Given an empty IFC project
+    And I press "bim.add_library"
+    And the variable "library" is "{ifc}.by_type('IfcLibraryInformation')[-1].id()"
+    And I press "bim.enable_editing_library_references(library={library})"
+    And I press "bim.add_library_reference"
+    And the variable "reference" is "{ifc}.by_type('IfcLibraryReference')[-1].id()"
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And the object "IfcWall/Cube" is selected
+    When I press "bim.assign_library_reference(reference={reference})"
+    Then nothing happens
+
+Scenario: Unassign library reference
+    Given an empty IFC project
+    And I press "bim.add_library"
+    And the variable "library" is "{ifc}.by_type('IfcLibraryInformation')[-1].id()"
+    And I press "bim.enable_editing_library_references(library={library})"
+    And I press "bim.add_library_reference"
+    And the variable "reference" is "{ifc}.by_type('IfcLibraryReference')[-1].id()"
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.assign_library_reference(reference={reference})"
+    When I press "bim.unassign_library_reference(reference={reference})"
+    Then nothing happens

src/blenderbim/test/core/test_library.py

@@ -109,3 +109,17 @@ class TestEditLibraryReference:
         library.get_active_library().should_be_called().will_return("library")
         library.import_references("library").should_be_called()
         subject.edit_library_reference(ifc, library)
+
+
+class TestAssignLibraryReference:
+    def test_run(self, ifc):
+        ifc.get_entity("obj").should_be_called().will_return("product")
+        ifc.run("library.assign_reference", product="product", reference="reference").should_be_called()
+        subject.assign_library_reference(ifc, obj="obj", reference="reference")
+
+
+class TestUnassignLibraryReference:
+    def test_run(self, ifc):
+        ifc.get_entity("obj").should_be_called().will_return("product")
+        ifc.run("library.unassign_reference", product="product", reference="reference").should_be_called()
+        subject.unassign_library_reference(ifc, obj="obj", reference="reference")