blender-gdsimporter/__init__.py

bl_info = {
    "name": "gdsii OBJ format",
    "author": "Julian Daube",
    "version": (0, 9, 0),
    "blender": (2, 78, 0),
    "location": "File > Import-Export",
    "description": "Import GdsII files",
    "warning": "",
    "category": "Import-Export"}

if "bpy" in locals():
    import importlib
    if "import_gds" in locals():
        importlib.reload(import_gds)
    if "gds" in locals():
        importlib.reload(gds)

import bpy

from bpy.props import (
        BoolProperty,
        FloatProperty,
        StringProperty,
        EnumProperty,
        )
    
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')

class ImportGDS(bpy.types.Operator, ImportHelper, IOOBJOrientationHelper):
    """Load a GDSII File"""
    bl_idname = "import_scene.gds"
    bl_label = "Import GDSII"
    bl_options = {'PRESET', 'UNDO'}

    filename_ext = ".obj"
    filter_glob = StringProperty(
            default="*.gds",
            options={'HIDDEN'},
            )

    # use_edges = BoolProperty(
    #         name="Lines",
    #         description="Import lines and faces with 2 verts as edge",
    #         default=True,
    #         )
    # use_smooth_groups = BoolProperty(
    #         name="Smooth Groups",
    #         description="Surround smooth groups by sharp edges",
    #         default=True,
    #         )

    # use_split_objects = BoolProperty(
    #         name="Object",
    #         description="Import OBJ Objects into Blender Objects",
    #         default=True,
    #         )
    # use_split_groups = BoolProperty(
    #         name="Group",
    #         description="Import OBJ Groups into Blender Objects",
    #         default=True,
    #         )

    # use_groups_as_vgroups = BoolProperty(
    #         name="Poly Groups",
    #         description="Import OBJ groups as vertex groups",
    #         default=False,
    #         )

    # use_image_search = BoolProperty(
    #         name="Image Search",
    #         description="Search subdirs for any associated images "
    #                     "(Warning, may be slow)",
    #         default=True,
    #         )

    # split_mode = EnumProperty(
    #         name="Split",
    #         items=(('ON', "Split", "Split geometry, omits unused verts"),
    #                ('OFF', "Keep Vert Order", "Keep vertex order from file"),
    #                ),
    #         )

    # global_clamp_size = FloatProperty(
    #         name="Clamp Size",
    #         description="Clamp bounds under this value (zero to disable)",
    #         min=0.0, max=1000.0,
    #         soft_min=0.0, soft_max=1000.0,
    #         default=0.0,
    #         )

    top_cell_name = StringProperty(
            name="Top Cell Name",
            #descriptionn="When set, only import the structure with that name",
            default="",
    )

    def execute(self, context):
        # print("Selected: " + context.active_object.name)
        from . import import_gds
        from . import gds

        # ignore axis helper arguments
        keywords = self.as_keywords(ignore=("axis_forward",
                                            "axis_up",
                                            "filter_glob",
                                            "split_mode",
                                            ))

        if bpy.data.is_saved and context.user_preferences.filepaths.use_relative_paths:
            import os
            keywords["relpath"] = os.path.dirname(bpy.data.filepath)
        
        # do the file import
        progressCounter = import_gds.Progressor(context.window_manager)

        try:
            with open(keywords["filepath"], "rb") as file:
                lib = gds.parse_file(file, progressCounter)
        except gds.ParserError as e:
            self.report({"ERROR_INVALID_INPUT"}, "cannot parse given gds file: {}".format(e))
            
        progressCounter.end()
        sceneInserter = import_gds.SceneInserter(context, lib, top_cell=keywords["top_cell_name"])

        if not sceneInserter(progressCounter):
            self.report({"ERROR_INVALID_INPUT"}, "Could not find structure with name {}".format(keywords["top_cell_name"]))
            return {"CANCELLED"}

        return {"FINISHED"}

    def draw(self, context):
        layout = self.layout

        row = layout.row()
        row.prop(self, "top_cell_name")


        # row = layout.row(align=True)
        # row.prop(self, "use_smooth_groups")
        # row.prop(self, "use_edges")

        # box = layout.box()
        # row = box.row()
        # row.prop(self, "split_mode", expand=True)

        # row = box.row()
        # if self.split_mode == 'ON':
        #     row.label(text="Split by:")
        #     row.prop(self, "use_split_objects")
        #     row.prop(self, "use_split_groups")
        # else:
        #     row.prop(self, "use_groups_as_vgroups")

        # row = layout.split(percentage=0.67)
        # row.prop(self, "global_clamp_size")
        # layout.prop(self, "axis_forward")
        # layout.prop(self, "axis_up")

        # layout.prop(self, "use_image_search")



def menu_func_import(self, context):
    self.layout.operator(ImportGDS.bl_idname, text="GDSII Stream (.gds)")

classes = (
    ImportGDS,
)


def register():
    for cls in classes:
        bpy.utils.register_class(cls)

    bpy.types.INFO_MT_file_import.append(menu_func_import)
    

def unregister():
    bpy.types.INFO_MT_file_import.remove(menu_func_import)
    
    for cls in classes:
        bpy.utils.unregister_class(cls)


if __name__ == "__main__":
    register()