Purge unused styles and materials #3914

Example - https://imgur.com/a/JXEofa1

src/bonsai/bonsai/bim/module/debug/__init__.py

@@ -36,6 +36,7 @@ classes = (
     operator.ProfileImportIFC,
     operator.PurgeHdf5Cache,
     operator.PurgeUnusedElementsByClass,
+    operator.PurgeUnusedObjects,
     operator.RestartBlender,
     operator.RewindInspector,
     operator.SelectExpressFile,

src/bonsai/bonsai/bim/module/debug/operator.py

@@ -32,6 +32,8 @@ import ifcopenshell.util.representation
 import ifcopenshell.util.unit
 import bonsai.tool as tool
 import bonsai.core.debug as core
+import bonsai.core.profile
+import bonsai.core.type
 import bonsai.bim.handler
 import bonsai.bim.import_ifc as import_ifc
 from pathlib import Path
@@ -608,6 +610,57 @@ class PurgeUnusedElementsByClass(bpy.types.Operator, tool.Ifc.Operator):
         tool.Ifc.get().write(self.filepath)
 
 
+class PurgeUnusedObjects(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.purge_unused_objects"
+    bl_label = "Purge Unused Objects"
+    bl_options = {"REGISTER", "UNDO"}
+
+    object_type: bpy.props.EnumProperty(
+        name="Object Type",
+        items=(
+            ("TYPE", "Type", ""),
+            ("PROFILE", "Profile", ""),
+            ("STYLE", "Style", ""),
+            ("MATERIAL", "Material", ""),
+        ),
+    )
+
+    def _execute(self, context):
+        object_type = self.object_type
+        if object_type == "TYPE":
+            purged = bonsai.core.type.purge_unused_types(tool.Ifc, tool.Type, tool.Geometry)
+        elif object_type == "PROFILE":
+            purged = bonsai.core.profile.purge_unused_profiles(tool.Ifc, tool.Profile)
+        elif object_type == "STYLE":
+            purged = tool.Debug.purge_unused_class("IfcPresentationStyle")
+        elif object_type == "MATERIAL":
+            ifc_file = tool.Ifc.get()
+            is_ifc2x3 = ifc_file.schema == "IFC2X3"
+            if is_ifc2x3:
+                purged = tool.Debug.purge_unused_class("IfcMaterial")
+            else:
+                purged = tool.Debug.purge_unused_class("IfcMaterialDefinition")
+        else:
+            self.report({"ERROR"}, f"Invalid object type {object_type}.")
+            return {"CANCELLED"}
+
+        self.report({"INFO"}, f"{purged} unused {object_type.lower()}s were purged.")
+
+        if purged == 0:
+            return
+
+        scene = context.scene
+        if object_type == "PROFILE":
+            if scene.BIMProfileProperties.is_editing:
+                bpy.ops.bim.load_profiles()
+        elif object_type == "STYLE":
+            if scene.BIMStylesProperties.is_editing:
+                bpy.ops.bim.load_styles()
+        elif object_type == "MATERIAL":
+            if scene.BIMMaterialProperties.is_editing:
+                bpy.ops.bim.load_materials()
+
+
 class PipInstall(bpy.types.Operator):
     bl_idname = "bim.pip_install"
     bl_label = "Pip Install"

src/bonsai/bonsai/bim/module/profile/__init__.py

@@ -30,7 +30,6 @@ classes = (
     operator.EnableEditingArbitraryProfile,
     operator.EnableEditingProfile,
     operator.LoadProfiles,
-    operator.PurgeUnusedProfiles,
     operator.RemoveProfileDef,
     prop.Profile,
     prop.BIMProfileProperties,

src/bonsai/bonsai/bim/module/profile/operator.py

@@ -264,18 +264,3 @@ class EditArbitraryProfile(bpy.types.Operator, tool.Ifc.Operator):
         props.active_arbitrary_profile_id = 0
 
         model_profile.DumbProfileRegenerator().regenerate_from_profile_def(profile)
-
-
-class PurgeUnusedProfiles(bpy.types.Operator, tool.Ifc.Operator):
-    bl_idname = "bim.purge_unused_profiles"
-    bl_label = "Purge Unused Profiles"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def _execute(self, context):
-        props = context.scene.BIMProfileProperties
-        purged_profiles = core.purge_unused_profiles(tool.Ifc, tool.Profile)
-        self.report({"INFO"}, f"{purged_profiles} profiles were purged.")
-
-        if props.is_editing:
-            refresh()
-            bpy.ops.bim.load_profiles()

src/bonsai/bonsai/bim/module/project/ui.py

@@ -519,5 +519,7 @@ class BIM_PT_purge(Panel):
 
     def draw(self, context):
         layout = self.layout
-        layout.operator("bim.purge_unused_profiles")
+        layout.operator("bim.purge_unused_objects", text="Purge Unused Profiles").object_type = "PROFILE"
-        layout.operator("bim.purge_unused_types")
+        layout.operator("bim.purge_unused_objects", text="Purge Unused Types").object_type = "TYPE"
+        layout.operator("bim.purge_unused_objects", text="Purge Unused Styles").object_type = "STYLE"
+        layout.operator("bim.purge_unused_objects", text="Purge Unused Materials").object_type = "MATERIAL"

src/bonsai/bonsai/bim/module/style/operator.py

@@ -460,7 +460,8 @@ class LoadStyles(bpy.types.Operator, tool.Ifc.Operator):
     style_type: bpy.props.StringProperty()
 
     def _execute(self, context):
-        core.load_styles(tool.Style, style_type=self.style_type)
+        style_type = self.style_type if self.style_type else context.scene.BIMStylesProperties.style_type
+        core.load_styles(tool.Style, style_type=style_type)
 
 
 class SelectByStyle(bpy.types.Operator, tool.Ifc.Operator):

src/bonsai/bonsai/bim/module/type/__init__.py

@@ -26,7 +26,6 @@ classes = (
     operator.DisableEditingType,
     operator.DuplicateType,
     operator.EnableEditingType,
-    operator.PurgeUnusedTypes,
     operator.RemoveType,
     operator.RenameType,
     operator.SelectSimilarType,

src/bonsai/bonsai/bim/module/type/operator.py

@@ -555,13 +555,3 @@ class DuplicateType(bpy.types.Operator, tool.Ifc.Operator):
         context.scene.BIMModelProperties.ifc_class = new.is_a()
         context.scene.BIMModelProperties.relating_type_id = str(new_obj.BIMObjectProperties.ifc_definition_id)
         return {"FINISHED"}
-
-
-class PurgeUnusedTypes(bpy.types.Operator, tool.Ifc.Operator):
-    bl_idname = "bim.purge_unused_types"
-    bl_label = "Purge Unused Types"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def _execute(self, context):
-        purged_types = core.purge_unused_types(tool.Ifc, tool.Type, tool.Geometry)
-        self.report({"INFO"}, f"{purged_types} types were purged.")

src/bonsai/bonsai/tool/debug.py

@@ -97,3 +97,15 @@ class Debug(bonsai.core.tool.Debug):
                 print(f"{class_string: <50} {unused[ifc_class]: >5}")
 
         return sum(unused.values())
+
+    @classmethod
+    def purge_unused_class(cls, ifc_class: str) -> int:
+        ifc_file = tool.Ifc.get()
+        elements = ifc_file.by_type(ifc_class)
+        i = 0
+        for element in elements:
+            if ifc_file.get_total_inverses(element) != 0:
+                continue
+            ifcopenshell.util.element.remove_deep(ifc_file, element)
+            i += 1
+        return i