From ae88f843b55649e05bcd0315ce6f1fdad7746c2d Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Sun, 21 May 2017 00:10:19 +0200
Subject: [PATCH] Perform background processing when changing settings in the
 preset editor. #3835 #3853

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

diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index ba19b8ee1..e2a06d905 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -751,6 +751,9 @@ sub show_preset_editor {
     
     my @presets = $self->selected_presets($group);
     $dlg->preset_editor->select_preset_by_name($presets[$i // 0]->name);
+    $dlg->preset_editor->on_value_change(sub {
+        $self->config_changed;
+    });
     $dlg->ShowModal;
     
     # Re-load the presets as they might have changed.