Record the source IFC file as metadata in preparation for partial writes

src/ifcblenderexport/blenderbim/__init__.py

@@ -40,6 +40,7 @@ if bpy is not None:
         operator.SelectDiffOldFile,
         operator.SelectDataDir,
         operator.SelectSchemaDir,
+        operator.SelectIfcFile,
         operator.ExportIFC,
         operator.ImportIFC,
         operator.ColourByClass,

src/ifcblenderexport/blenderbim/import_ifc.py

@@ -139,6 +139,7 @@ class IfcImporter():
     def execute(self):
         self.load_diff()
         self.load_file()
+        self.set_ifc_file()
         if self.ifc_import_settings.should_auto_set_workarounds:
             self.auto_set_workarounds()
         self.calculate_unit_scale()
@@ -296,6 +297,9 @@ class IfcImporter():
         self.ifc_import_settings.logger.info('loading file {}'.format(self.ifc_import_settings.input_file))
         self.file = ifcopenshell.open(self.ifc_import_settings.input_file)
 
+    def set_ifc_file(self):
+        bpy.context.scene.BIMProperties.ifc_file = self.ifc_import_settings.input_file
+
     def calculate_unit_scale(self):
         units = self.file.by_type('IfcUnitAssignment')[0]
         for unit in units.Units:

src/ifcblenderexport/blenderbim/operator.py

@@ -699,6 +699,21 @@ class SelectFeaturesDir(bpy.types.Operator):
         context.window_manager.fileselect_add(self)
         return {'RUNNING_MODAL'}
 
+
+class SelectIfcFile(bpy.types.Operator):
+    bl_idname = "bim.select_ifc_file"
+    bl_label = "Select IFC File"
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+
+    def execute(self, context):
+        bpy.context.scene.BIMProperties.ifc_file = self.filepath
+        return {'FINISHED'}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {'RUNNING_MODAL'}
+
+
 class SelectDataDir(bpy.types.Operator):
     bl_idname = "bim.select_data_dir"
     bl_label = "Select Data Directory"
@@ -712,6 +727,7 @@ class SelectDataDir(bpy.types.Operator):
         context.window_manager.fileselect_add(self)
         return {'RUNNING_MODAL'}
 
+
 class SelectSchemaDir(bpy.types.Operator):
     bl_idname = "bim.select_schema_dir"
     bl_label = "Select Schema Directory"

src/ifcblenderexport/blenderbim/prop.py

@@ -359,6 +359,7 @@ class BIMCameraProperties(PropertyGroup):
 class BIMProperties(PropertyGroup):
     schema_dir: StringProperty(default=os.path.join(cwd ,'schema') + os.path.sep, name="Schema Directory")
     data_dir: StringProperty(default=os.path.join(cwd, 'data') + os.path.sep, name="Data Directory")
+    ifc_file: StringProperty(name="IFC File")
     audit_ifc_class: EnumProperty(items=getIfcClasses, name="Audit Class")
     ifc_product: EnumProperty(items=getIfcProducts, name="Products", update=refreshClasses)
     ifc_class: EnumProperty(items=getIfcClasses, name="Class", update=refreshPredefinedTypes)

src/ifcblenderexport/blenderbim/ui.py

@@ -392,16 +392,18 @@ class BIM_PT_bim(Panel):
         row = layout.row()
         row.operator('bim.quick_project_setup')
 
-        col = layout.column()
-        row = col.row(align=True)
+        row = layout.row(align=True)
         row.prop(bim_properties, "schema_dir")
         row.operator("bim.select_schema_dir", icon="FILE_FOLDER", text="")
 
-        col = layout.column()
-        row = col.row(align=True)
+        row = layout.row(align=True)
         row.prop(bim_properties, "data_dir")
         row.operator("bim.select_data_dir", icon="FILE_FOLDER", text="")
 
+        row = layout.row(align=True)
+        row.prop(bim_properties, "ifc_file")
+        row.operator("bim.select_ifc_file", icon="FILE_FOLDER", text="")
+
         layout.label(text="Software Identity:")
 
         row = layout.row()