additional changes

__init__.py

@@ -26,15 +26,14 @@ from bpy.props import (
     
 from bpy_extras.io_utils import (
         ImportHelper,
-        ExportHelper,
         orientation_helper_factory,
         path_reference_mode,
         axis_conversion,
         )
 
-IOOBJOrientationHelper = orientation_helper_factory("IOOBJOrientationHelper", axis_forward='-Z', axis_up='Y')
+IGDSOrientationHelper = orientation_helper_factory("IGDSOrientationHelper", axis_forward='-Z', axis_up='Y')
 
-class ImportGDS(bpy.types.Operator, ImportHelper, IOOBJOrientationHelper):
+class ImportGDS(bpy.types.Operator, ImportHelper, IGDSOrientationHelper):
     """Load a GDSII File"""
     bl_idname = "import_scene.gds"
     bl_label = "Import GDSII"
@@ -96,16 +95,27 @@ class ImportGDS(bpy.types.Operator, ImportHelper, IOOBJOrientationHelper):
     #         default=0.0,
     #         )
 
+    gds_file = StringProperty(
+        name="gds file",
+        subtype="FILE_PATH"
+    )
+    
     top_cell_name = StringProperty(
-            name="Top Cell Name",
-            #descriptionn="When set, only import the structure with that name",
-            default="",
+        name="Top Cell Name",
+        #descriptionn="When set, only import the structure with that name",
+        default="",
+    )
+   
+    layer_definition = StringProperty(
+        name="Layer Def",
+        #descriptionn="When set, only import the structure with that name",
+        subtype="FILE_PATH"
     )
     
     def execute(self, context):
         # print("Selected: " + context.active_object.name)
         from . import import_gds
-        from . import gds
+        from . import pygds as gds
 
         # ignore axis helper arguments
         keywords = self.as_keywords(ignore=("axis_forward",
@@ -138,10 +148,12 @@ class ImportGDS(bpy.types.Operator, ImportHelper, IOOBJOrientationHelper):
 
     def draw(self, context):
         layout = self.layout
+        box = layout.box()
+        box.row().prop(self, "gds_file")
+        box.row().prop(self, "top_cell_name")
 
         row = layout.row()
-        row.prop(self, "top_cell_name")
-
+        row.prop(self, "layer_definition")
 
         # row = layout.row(align=True)
         # row.prop(self, "use_smooth_groups")

import_gds.py

@@ -1,10 +1,7 @@
-from . import gds 
+from . import pygds as gds
 from concurrent.futures import ThreadPoolExecutor
 
 import importlib
-if "gds" in locals():
-    gds = importlib.reload(gds)
-
 import pathlib
 import bpy
 from bpy_extras.wm_utils.progress_report import ProgressReport