Future-proof implementation 2.0

Assets/avatar-example/mesh/blend~/fbx_export.py

@@ -2,10 +2,13 @@ import os
 from datetime import datetime
 
 import bpy
-from bpy.props import StringProperty, BoolProperty, PointerProperty, IntProperty
-from bpy.types import UIList, Operator, Panel, PropertyGroup, Context
-
-from io_scene_fbx import ExportFBX
+_FUTURE = bpy.app.version >= (2, 80, 0)
+from bpy.props import EnumProperty, StringProperty, BoolProperty, PointerProperty, IntProperty
+from bpy.types import UIList, Operator, Panel, PropertyGroup, Context, Scene
+if _FUTURE:
+    from bpy.types import Collection as Group
+else:
+    from bpy.types import Group as Group
 
 
 def message_box(message: str, title: str = "Message", icon: str = 'INFO') -> None:
@@ -18,7 +21,7 @@ def message_box(message: str, title: str = "Message", icon: str = 'INFO') -> Non
     def draw(self, context):
         col = self.layout.column(align=True)
         for line in message.strip().split("\n"):
-            col.label(line)
+            col.label(text=line)
     bpy.context.window_manager.popup_menu(draw, title=title, icon=icon)
 
 
@@ -37,9 +40,10 @@ def fbx_export(context: Context) -> None:
     """
     print("[%s] Batch FBX export begin" % datetime.now())
 
-    rootpath = os.path.normpath(bpy.path.abspath(context.scene.fbx_export.export_dir))
+    rootpath = os.path.normpath(bpy.path.abspath(context.scene.fbx_export_dir))
+    groups = bpy.data.collections if _FUTURE else bpy.data.groups
 
-    for group in [g for g in bpy.data.groups if g.fbx_exportable]:
+    for group in [g for g in groups if g.fbx_exportable]:
         filepath = os.path.join(rootpath, name_as_path(group.name))
         basepath = os.path.dirname(filepath)
 
@@ -60,7 +64,7 @@ def fbx_export(context: Context) -> None:
             global_scale=1.0,
             axis_forward='-Z',
             axis_up='Y',
-            object_types=context.scene.fbx_export.object_types,
+            object_types=context.scene.fbx_object_types,
             use_mesh_modifiers=True,
             mesh_smooth_type='OFF',
             use_mesh_edges=False,
@@ -81,22 +85,6 @@ def fbx_export(context: Context) -> None:
     print("\n[%s] Batch FBX export end." % datetime.now())
 
 
-class FBXExportProps(PropertyGroup):
-    export_dir = StringProperty(
-        name="FBX Export Dir",
-        description="FBX Export Directory",
-        subtype="DIR_PATH",
-        default="//../fbx/",
-    )
-    on_save = BoolProperty(
-        name="Export on save",
-        description="Export FBX on Blender file save",
-        default=False
-    )
-    object_types = ExportFBX.object_types
-    group_index = IntProperty(default=0)
-
-
 class FBX_OT_ManualExport(Operator):
     bl_idname = "fbx.manual_export"
     bl_label = "Manual Export"
@@ -133,29 +121,29 @@ class SCENE_PT_fbx_autoexport(Panel):
         col = layout.column()
 
         sub = col.column(align=True)
-        sub.prop(scene.fbx_export, "on_save", icon='LOAD_FACTORY')
+        sub.prop(scene, "fbx_on_save", icon='FILE_REFRESH')
         sub.operator(FBX_OT_ManualExport.bl_idname, icon="PASTEDOWN")
     
         col.separator()
 
         split = col.split()
         sub = split.column()
-        sub.label("Filter groups:")
-        sub.template_list("FBX_UL_ExportItems", "", bpy.data, "groups", scene.fbx_export, "group_index", rows=5)
+        sub.label(text="Filter groups:")
+        sub.template_list("FBX_UL_ExportItems", "", bpy.data, "collections" if _FUTURE else "groups", scene, "fbx_group_index", rows=5)
         sub = split.column()
-        sub.label("Filter object types:")
-        sub.prop(scene.fbx_export, "object_types")
+        sub.label(text="Filter object types:")
+        sub.prop(scene, "fbx_object_types")
 
         col.separator()
 
-        col.prop(scene.fbx_export, "export_dir")
+        col.prop(scene, "fbx_export_dir")
 
 
 def on_save(*args, **kwargs) -> None:
     """
     Runs when Blender file is being saved
     """
-    if not bpy.context.scene.fbx_export.on_save:
+    if not bpy.context.scene.fbx_on_save:
         return
 
     try:
@@ -165,7 +153,6 @@ def on_save(*args, **kwargs) -> None:
 
 
 classes = [
-    FBXExportProps,
     FBX_OT_ManualExport,
     FBX_UL_ExportItems,
     SCENE_PT_fbx_autoexport,
@@ -175,8 +162,33 @@ classes = [
 def register() -> None:
     for cls in classes:
         bpy.utils.register_class(cls)
-    bpy.types.Scene.fbx_export = PointerProperty(type=FBXExportProps)
-    bpy.types.Group.fbx_exportable = BoolProperty(
+    Scene.fbx_export_dir = StringProperty(
+        name="FBX Export Dir",
+        description="FBX Export Directory",
+        subtype="DIR_PATH",
+        default="//../fbx/",
+    )
+    Scene.fbx_on_save = BoolProperty(
+        name="Export on save",
+        description="Export FBX on Blender file save",
+        default=False
+    )
+    Scene.fbx_object_types = EnumProperty(
+        name="Object Types",
+        options={'ENUM_FLAG'},
+        items=(
+            ('EMPTY', "Empty", ""),
+            ('CAMERA', "Camera", ""),
+            ('LAMP', "Lamp", ""),
+            ('ARMATURE', "Armature", "WARNING: not supported in dupli/group instances"),
+            ('MESH', "Mesh", ""),
+            ('OTHER', "Other", "Other geometry types, like curve, metaball, etc. (converted to meshes)"),
+        ),
+        description="Which kind of object to export",
+        default={'EMPTY', 'CAMERA', 'LAMP', 'ARMATURE', 'MESH', 'OTHER'},
+    )
+    Scene.fbx_group_index = IntProperty(default=0)
+    Group.fbx_exportable = BoolProperty(
         name="Export Group",
         description="Mark group as FBX exportable",
         default=False
@@ -186,8 +198,11 @@ def register() -> None:
 
 def unregister() -> None:
     bpy.app.handlers.save_pre.remove(on_save)
-    del bpy.types.Group.fbx_exportable
-    del bpy.types.Scene.fbx_export
+    del Group.fbx_exportable
+    del Scene.fbx_group_index
+    del Scene.fbx_object_types
+    del Scene.fbx_on_save
+    del Scene.fbx_export_dir
     for cls in reversed(classes):
         bpy.utils.unregister_class(cls)