From 138800479b398cc1da9b3155547b82b6f616972d Mon Sep 17 00:00:00 2001
From: Urban Wallasch <urban.wallasch@freenet.de>
Date: Sat, 8 May 2021 14:57:57 +0200
Subject: [PATCH] * Print a warning, if thumbnail scrollframe size exceeds the
 maximum supported by Tkinter.

---
 ffpreview.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ffpreview.py b/ffpreview.py
index dc17993..aaca49e 100755
--- a/ffpreview.py
+++ b/ffpreview.py
@@ -656,6 +656,8 @@ def fill_grid(cols):
         x += 1
         if x == cols:
             x = 0; y += 1
+    if cfg['grid_columns']*tlwidth > 32767 or y*tlheight > 32767:
+        eprint('WARNING: grid dimensions exceed maximum size, display will be garbled!')
 
 def on_resize(event):
     cols = cfg['grid_columns']
-- 
2.30.2