From 240f67f15c1259dafa7f78c22858a20ac08d4725 Mon Sep 17 00:00:00 2001
From: Seraphima Zykova <zykovas91@gmail.com>
Date: Tue, 29 Sep 2020 13:12:21 +0300
Subject: [PATCH] Fixed crash with big 'Space around zones' values (#6815)

---
 .../fancyzones/editor/FancyZonesEditor/LayoutPreview.xaml.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/modules/fancyzones/editor/FancyZonesEditor/LayoutPreview.xaml.cs b/src/modules/fancyzones/editor/FancyZonesEditor/LayoutPreview.xaml.cs
index 00a922cdd7..6bd4037b0d 100644
--- a/src/modules/fancyzones/editor/FancyZonesEditor/LayoutPreview.xaml.cs
+++ b/src/modules/fancyzones/editor/FancyZonesEditor/LayoutPreview.xaml.cs
@@ -2,6 +2,7 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Windows;
@@ -171,8 +172,8 @@ namespace FancyZonesEditor
                             maxCol++;
                         }
 
-                        rect.Width = colInfo[maxCol].End - left;
-                        rect.Height = rowInfo[maxRow].End - top;
+                        rect.Width = Math.Max(0, colInfo[maxCol].End - left);
+                        rect.Height = Math.Max(0, rowInfo[maxRow].End - top);
                         rect.StrokeThickness = 1;
                         rect.Stroke = Brushes.DarkGray;
                         rect.Fill = Brushes.LightGray;