From 9ce3487b20f39074f183415d5fb3a4669b0d97c9 Mon Sep 17 00:00:00 2001
From: "chunmao.guo" <chunmao.guo@bambulab.com>
Date: Thu, 24 Aug 2023 15:56:05 +0800
Subject: [PATCH] FIX: [STUDIO-4125] null crash in ImageGrid

Change-Id: Ibe2fcf6d3fe7ae901a2e594d782566a04aa19c39
Jira: STUDIO-4125
(cherry picked from commit aef8e23fdbead22c9e0585cb33cb72f183d8c057)
---
 src/slic3r/GUI/ImageGrid.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/slic3r/GUI/ImageGrid.cpp b/src/slic3r/GUI/ImageGrid.cpp
index 9944abb363..624c0539d5 100644
--- a/src/slic3r/GUI/ImageGrid.cpp
+++ b/src/slic3r/GUI/ImageGrid.cpp
@@ -224,6 +224,7 @@ void ImageGrid::UpdateLayout()
 
 void Slic3r::GUI::ImageGrid::UpdateFocusRange()
 {
+    if (!m_file_sys) return;
     wxSize  size = GetClientSize();
     wxPoint off;
     int     index = firstItem(size, off);