From 10baec009c7760c76012210eae9db12b6446dc71 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@klayout.de>
Date: Sat, 28 Sep 2024 18:11:53 +0200
Subject: [PATCH] Bugfix for issue #1870: do not allow editing on invalid
 layers

---
 src/edt/edt/edtServiceImpl.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/edt/edt/edtServiceImpl.cc b/src/edt/edt/edtServiceImpl.cc
index 669eb166f..f92121c34 100644
--- a/src/edt/edt/edtServiceImpl.cc
+++ b/src/edt/edt/edtServiceImpl.cc
@@ -98,6 +98,8 @@ ShapeEditService::get_edit_layer ()
 
   if (cl.is_null ()) {
     throw tl::Exception (tl::to_string (tr ("Please select a layer first")));
+  } else if (! cl->valid (true)) {
+    throw tl::Exception (tl::to_string (tr ("The selected layer is not valid")));
   }
 
   int cv_index = cl->cellview_index ();