IFC Header UI - display author and additional info in case if it's available

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

@@ -44,6 +44,7 @@ class ProjectData:
             "library_file": cls.library_file(),
             "last_saved": cls.last_saved(),
             "total_elements": cls.total_elements(),
+            "header_info": cls.header_info(),
         }
         # After export_schema.
         cls.data["template_file"] = cls.template_file()
@@ -108,6 +109,12 @@ class ProjectData:
             return len(ifc.by_type("IfcElement"))
         return 0
 
+    @classmethod
+    def header_info(cls) -> Union[tool.Project.HeaderData, None]:
+        if not tool.Ifc.get():
+            return None
+        return tool.Project.get_header_data()
+
 
 class ProjectLibraryData:
     data: dict[str, Any] = {}

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

@@ -849,26 +849,8 @@ class EnableEditingHeader(bpy.types.Operator):
         self.file = tool.Ifc.get()
         props = tool.Project.get_project_props()
         props.is_editing = True
-
-        mvd = "".join(tool.Ifc.get().header.file_description.description)
-        if "[" in mvd:
-            props.mvd = mvd.split("[")[1][0:-1]
-        else:
-            props.mvd = ""
-
-        author = self.file.header.file_name.author
-        if author:
-            props.author_name = author[0]
-            if len(author) > 1:
-                props.author_email = author[1]
-
-        organisation = self.file.header.file_name.organization
-        if organisation:
-            props.organisation_name = organisation[0]
-            if len(organisation) > 1:
-                props.organisation_email = organisation[1]
-
-        props.authorisation = self.file.header.file_name.authorization or ""
+        header_data = tool.Project.get_header_data()
+        props.load_header_data(header_data)
         return {"FINISHED"}
 
 
@@ -883,6 +865,9 @@ class EditHeader(bpy.types.Operator):
         return tool.Ifc.get()
 
     def execute(self, context):
+        # NOTE: Though header entities are now generic `entity_instance`
+        # we still have a special undo system in place for this operator
+        # since general undo system tracks only elements with ids != 0.
         IfcStore.begin_transaction(self)
         self.transaction_data = {}
         self.transaction_data["old"] = self.record_state()
@@ -890,6 +875,7 @@ class EditHeader(bpy.types.Operator):
         self.transaction_data["new"] = self.record_state()
         IfcStore.add_transaction_operation(self)
         IfcStore.end_transaction(self)
+        bonsai.bim.handler.refresh_ui_data()
         return result
 
     def _execute(self, context):

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

@@ -446,6 +446,14 @@ class BIMProjectProperties(PropertyGroup):
     def get_library_element_index(self, lib_element: LibraryElement) -> int:
         return next(i for i in range(len(self.library_elements)) if self.library_elements[i] == lib_element)
 
+    def load_header_data(self, header_data: tool.Project.HeaderData) -> None:
+        self.mvd = header_data.mvd
+        self.author_name = header_data.author_name
+        self.author_email = header_data.author_email
+        self.organisation_name = header_data.organization_name
+        self.organisation_email = header_data.organization_email
+        self.authorisation = header_data.authorization
+
     if TYPE_CHECKING:
         is_editing: bool
         is_loading: bool

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

@@ -266,33 +266,30 @@ class BIM_PT_project(Panel):
             row.label(text="IFC Schema", icon="FILE_CACHE")
             row.label(text=ifc_file.schema)
 
-            if pprops.is_editing:
-                row = self.layout.row(align=True)
-                row.prop(pprops, "mvd")
+            if not ProjectData.is_loaded:
+                ProjectData.load()
 
-                row = self.layout.row(align=True)
-                row.prop(pprops, "author_name")
-                row = self.layout.row(align=True)
-                row.prop(pprops, "author_email")
-
-                row = self.layout.row(align=True)
-                row.prop(pprops, "organisation_name")
-                row = self.layout.row(align=True)
-                row.prop(pprops, "organisation_email")
-
-                row = self.layout.row(align=True)
-                row.prop(pprops, "authorisation")
-            else:
-                row = self.layout.row(align=True)
-                row.label(text="IFC MVD", icon="FILE_HIDDEN")
-                if isinstance(ifc_file, ifcopenshell.sqlite):
-                    mvd = ifc_file.mvd_str
+            headers_props_and_icons = [
+                ("mvd", "FILE_HIDDEN"),
+                ("author_name", None),
+                ("author_email", None),
+                ("organisation_name", None),
+                ("organisation_email", None),
+                ("authorisation", None),
+            ]
+            rna_props = pprops.bl_rna.properties
+            for prop_name, prop_icon in headers_props_and_icons:
+                if pprops.is_editing:
+                    row = self.layout.row(align=True)
+                    row.prop(pprops, prop_name)
                 else:
-                    mvd = "".join(ifc_file.header.file_description.description)
-                if "[" in mvd:
-                    mvd = mvd.split("[")[1][0:-1]
-                row.label(text=mvd)
-
+                    value = getattr(ProjectData.data["header_info"], prop_name)
+                    if not value:
+                        continue
+                    row = self.layout.row(align=True)
+                    icon = {} if prop_icon is None else {"icon": prop_icon}
+                    row.label(text=rna_props[prop_name].name, **icon)
+                    row.label(text=value)
         else:
             row = self.layout.row(align=True)
             row.label(text="File Not Loaded", icon="ERROR")

src/bonsai/bonsai/tool/project.py

@@ -36,7 +36,7 @@ from collections import defaultdict
 from bonsai.bim.ifc import IfcStore
 from ifcopenshell.api.project.append_asset import APPENDABLE_ASSET_TYPES
 from pathlib import Path
-from typing import Optional, Union, TYPE_CHECKING
+from typing import NamedTuple, Optional, Union, TYPE_CHECKING
 
 if TYPE_CHECKING:
     from bonsai.bim.module.project.prop import BIMProjectProperties, MeasureToolSettings
@@ -437,3 +437,50 @@ class Project(bonsai.core.tool.Project):
                     remove_root(rel)
             else:
                 assert False, f"Shouldn't be here, {rel}"
+
+    class HeaderData(NamedTuple):
+        mvd: str
+        author_name: str
+        author_email: str
+        organization_name: str
+        organization_email: str
+        authorization: str
+
+    @classmethod
+    def get_header_data(cls) -> HeaderData:
+        if not (ifc_file := tool.Ifc.get()):
+            return {}
+
+        # MVD.
+        if isinstance(ifc_file, ifcopenshell.sqlite):
+            mvd = ifc_file.mvd_str
+        else:
+            mvd = "".join(ifc_file.header.file_description.description)
+        if f"[" in mvd:
+            mvd = mvd.split("[")[1][0:-1]
+
+        # Author.
+        author = ifc_file.header.file_name.author
+        author_name, author_email = "", ""
+        if author:
+            author_name = author[0]
+            if len(author) > 1:
+                author_email = author[1]
+
+        # Organization.
+        organization_name, organization_email = "", ""
+        organization = ifc_file.header.file_name.organization
+        if organization:
+            organization_name = organization[0]
+            if len(organization) > 1:
+                organization_email = organization[1]
+
+        authorization = ifc_file.header.file_name.authorization or ""
+        return cls.HeaderData(
+            mvd=mvd,
+            author_name=author_name,
+            author_email=author_email,
+            organization_name=organization_name,
+            organization_email=organization_email,
+            authorization=authorization,
+        )