From eba9148924eaeaad3d83542e5177f11d4602a53a Mon Sep 17 00:00:00 2001
From: joshua <joshua@joshua-desktop>
Date: Fri, 27 Sep 2019 19:25:38 +0200
Subject: [PATCH] Fix crash when a .qet file with 0 diagrams.

---
 sources/projectview.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sources/projectview.cpp b/sources/projectview.cpp
index af4384b4b..a750dab42 100644
--- a/sources/projectview.cpp
+++ b/sources/projectview.cpp
@@ -882,11 +882,14 @@ void ProjectView::loadDiagrams()
 		addDiagram(sv);
 	}
 
-	this->currentDiagram()->diagram()->loadElmtFolioSeq();
-	this->currentDiagram()->diagram()->loadCndFolioSeq();
+    if (DiagramView *dv = currentDiagram())
+    {
+        dv->diagram()->loadElmtFolioSeq();
+        dv->diagram()->loadCndFolioSeq();
+    }
 	
 	QSettings settings;
-	// If project have the folios list, move it at the beginning of the project
+        // If project have the folios list, move it at the beginning of the project
 	if (m_project -> getFolioSheetsQuantity()) {
 		for (int i = 0; i < m_project->getFolioSheetsQuantity(); i++)
 		m_tab -> tabBar() -> moveTab(diagram_views().size()-1, + (settings.value("projectview/foliolist_position").toInt() -1));