From cbca92513bcf381b7d15b88ffc909139e53e2722 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Sun, 26 Nov 2023 09:07:08 +0100
Subject: [PATCH] Fixed crash on empty MBTiles files

---
 src/map/mbtilesmap.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/map/mbtilesmap.cpp b/src/map/mbtilesmap.cpp
index fccc3efc..19af3fc0 100644
--- a/src/map/mbtilesmap.cpp
+++ b/src/map/mbtilesmap.cpp
@@ -82,6 +82,11 @@ bool MBTilesMap::getZooms()
 			_zooms.append(i);
 	}
 
+	if (!_zooms.size()) {
+		_errorString = "Empty tile set";
+		return false;
+	}
+
 	_zi = _zooms.size() - 1;
 
 	return true;