add placeholder for importer and exporter

bbp_ng/OP_EXPORT_virtools.py

@@ -0,0 +1,26 @@
+import bpy
+from . import PROP_preferences, UTIL_functions, UTIL_file_browser, UTIL_blender_mesh
+
+class BBP_OT_export_virtools(bpy.types.Operator, UTIL_file_browser.ExportVirtoolsFile):
+    """Export Virtools File"""
+    bl_idname = "bbp.export_virtools"
+    bl_label = "Export Virtools File"
+    bl_options = {'PRESET'}
+
+    @classmethod
+    def poll(self, context):
+        return PROP_preferences.get_raw_preferences().has_valid_blc_tex_folder()
+    
+    def execute(self, context):
+        UTIL_functions.message_box((self.general_get_filename(), ), 'Export Virtools File Path', 'INFO')
+        self.report({'INFO'}, "Virtools File Exporting Finished.")
+        return {'FINISHED'}
+    
+    def draw(self, context):
+        layout = self.layout
+
+def register() -> None:
+    bpy.utils.register_class(BBP_OT_export_virtools)
+
+def unregister() -> None:
+    bpy.utils.unregister_class(BBP_OT_export_virtools)