From 346671e16139d85eb4801eaff3b761b4704ace8e Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Tue, 20 Dec 2016 13:21:39 +0100
Subject: [PATCH] Fix crash in bed shape dialog

---
 lib/Slic3r/GUI/BedShapeDialog.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Slic3r/GUI/BedShapeDialog.pm b/lib/Slic3r/GUI/BedShapeDialog.pm
index ed6fb5cde5..9da717ab8a 100644
--- a/lib/Slic3r/GUI/BedShapeDialog.pm
+++ b/lib/Slic3r/GUI/BedShapeDialog.pm
@@ -212,6 +212,7 @@ sub _update_shape {
         my $rect_origin = $self->{optgroups}[SHAPE_RECTANGULAR]->get_value('rect_origin');
         my ($x, $y) = @$rect_size;
         return if !looks_like_number($x) || !looks_like_number($y);  # empty strings or '-' or other things
+        return if !$x || !$y;
         my ($x0, $y0) = (0,0);
         my ($x1, $y1) = ($x,$y);
         {