From cd013079f410dac3cf461bf30cba23affba6f6f1 Mon Sep 17 00:00:00 2001
From: Andrej730 <azhilenkov@gmail.com>
Date: Tue, 23 Apr 2024 16:09:26 +0500
Subject: [PATCH] bim.duplicate_material

---
 .../blenderbim/bim/module/material/__init__.py      |  1 +
 .../blenderbim/bim/module/material/operator.py      | 13 +++++++++++++
 src/blenderbim/blenderbim/bim/module/material/ui.py |  2 ++
 src/blenderbim/blenderbim/tool/material.py          |  4 ++++
 4 files changed, 20 insertions(+)

diff --git a/src/blenderbim/blenderbim/bim/module/material/__init__.py b/src/blenderbim/blenderbim/bim/module/material/__init__.py
index 8757f86c55..037befdbfd 100644
--- a/src/blenderbim/blenderbim/bim/module/material/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/material/__init__.py
@@ -24,6 +24,7 @@ classes = (
     operator.AddLayer,
     operator.AddListItem,
     operator.AddMaterial,
+    operator.DuplicateMaterial,
     operator.AddMaterialSet,
     operator.AddProfile,
     operator.AssignMaterial,
diff --git a/src/blenderbim/blenderbim/bim/module/material/operator.py b/src/blenderbim/blenderbim/bim/module/material/operator.py
index 77241afef5..b132332e5d 100644
--- a/src/blenderbim/blenderbim/bim/module/material/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/material/operator.py
@@ -134,6 +134,19 @@ class AddMaterial(bpy.types.Operator, tool.Ifc.Operator):
         material_prop_purge()
 
 
+class DuplicateMaterial(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.duplicate_material"
+    bl_label = "Diplicate Material"
+    bl_options = {"REGISTER", "UNDO"}
+    material: bpy.props.IntProperty(name="Material ID")
+
+    def _execute(self, context):
+        ifc_file = tool.Ifc.get()
+        tool.Material.duplicate_material(ifc_file.by_id(self.material))
+        material_prop_purge()
+        bpy.ops.bim.load_materials()
+
+
 class AddMaterialSet(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.add_material_set"
     bl_label = "Add Material Set"
diff --git a/src/blenderbim/blenderbim/bim/module/material/ui.py b/src/blenderbim/blenderbim/bim/module/material/ui.py
index 1f24392af2..6273596940 100644
--- a/src/blenderbim/blenderbim/bim/module/material/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/material/ui.py
@@ -61,6 +61,8 @@ class BIM_PT_materials(Panel):
             if self.props.materials and self.props.active_material_index < len(self.props.materials):
                 material = self.props.materials[self.props.active_material_index]
                 if material.ifc_definition_id:
+                    op = row.operator("bim.duplicate_material", text="", icon="DUPLICATE")
+                    op.material = material.ifc_definition_id
                     op = row.operator("bim.select_by_material", text="", icon="RESTRICT_SELECT_OFF")
                     op.material = material.ifc_definition_id
                     op = row.operator("bim.enable_editing_material", text="", icon="GREASEPENCIL")
diff --git a/src/blenderbim/blenderbim/tool/material.py b/src/blenderbim/blenderbim/tool/material.py
index 8ebb745fa0..a6e0391030 100644
--- a/src/blenderbim/blenderbim/tool/material.py
+++ b/src/blenderbim/blenderbim/tool/material.py
@@ -38,6 +38,10 @@ class Material(blenderbim.core.tool.Material):
     def disable_editing_materials(cls):
         bpy.context.scene.BIMMaterialProperties.is_editing = False
 
+    @classmethod
+    def duplicate_material(cls, material: ifcopenshell.entity_instance) -> ifcopenshell.entity_instance:
+        return ifcopenshell.util.element.copy_deep(tool.Ifc.get(), material)
+
     @classmethod
     def enable_editing_materials(cls):
         bpy.context.scene.BIMMaterialProperties.is_editing = True