From 0cd18c09273ac5bfb4a883e745634b16a78ce8c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Mon, 8 Feb 2021 00:55:27 +0100
Subject: [PATCH] Fixed crash when there is no graph in the data

---
 src/GUI/gui.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/GUI/gui.cpp b/src/GUI/gui.cpp
index 6ad95ed7..8427bd40 100644
--- a/src/GUI/gui.cpp
+++ b/src/GUI/gui.cpp
@@ -866,6 +866,8 @@ void GUI::loadData(const Data &data)
 	paths = _mapView->loadData(data);
 
 	GraphTab *gt = static_cast<GraphTab*>(_graphTabWidget->currentWidget());
+	if (!gt)
+		return;
 	int index = _graphTabWidget->currentIndex();
 
 	for (int i = 0; i < paths.count(); i++) {