From f04e1a0ba73acec136ddfdf6c0b343113c120b6f Mon Sep 17 00:00:00 2001
From: Isaac Connor <isaac@zoneminder.com>
Date: Sun, 9 Aug 2020 22:20:06 -0400
Subject: [PATCH] Apply min=0 to filterX and Y so that we don't get negative
 values

---
 web/skins/classic/views/zone.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/web/skins/classic/views/zone.php b/web/skins/classic/views/zone.php
index 207bd64e5..0a2c9155b 100644
--- a/web/skins/classic/views/zone.php
+++ b/web/skins/classic/views/zone.php
@@ -217,8 +217,8 @@ xhtmlHeaders(__FILE__, translate('Zone'));
 								</tr>
 								<tr>
 									<th scope="row"><?php echo translate('ZoneFilterSize') ?></th>
-									<td><input type="number" name="newZone[FilterX]" value="<?php echo $newZone['FilterX'] ?>"/></td>
-									<td><input type="number" name="newZone[FilterY]" value="<?php echo $newZone['FilterY'] ?>"/></td>
+									<td><input type="number" name="newZone[FilterX]" value="<?php echo $newZone['FilterX'] ?>" min="0"/></td>
+									<td><input type="number" name="newZone[FilterY]" value="<?php echo $newZone['FilterY'] ?>" min="0"/></td>
 								</tr>
 								<tr>
 									<th scope="row"><?php echo translate('ZoneArea') ?></th>