From e2af4865a2179d809d616c2ddc4c17b4feca6579 Mon Sep 17 00:00:00 2001
From: Michael Kirsch <mkirsch.git@gmail.com>
Date: Wed, 10 Jul 2019 20:19:17 +0200
Subject: [PATCH] add undo op for face-to-face rotation

---
 lib/Slic3r/GUI/Plater.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 6d518eacc..79288d76d 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -1644,6 +1644,8 @@ sub rotate_face {
     my $model_instance = $model_object->instances->[0];
 
     $model_object->transform_by_instance($model_instance, 1);
+
+    $model_object->reset_undo_trafo();
     $model_object->rotate_vec_to_vec($normal,$axis_vec);
 
     # realign object to Z = 0
@@ -1657,7 +1659,7 @@ sub rotate_face {
     $self->selection_changed;  # refresh info (size etc.)
     $self->on_model_change;
     
-    #TODO: undo stack
+    $self->add_undo_operation("TRANSFORM", $object->identifier, $model_object->get_undo_trafo());
 }
 
 sub rotate {