From 453736dfbcba1cdb9a4b762493f21a410d958569 Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <dismine@gmail.com>
Date: Tue, 30 Mar 2021 18:21:02 +0300
Subject: [PATCH] Fix crash if a piece contour is empty.

---
 src/libs/vlayout/vabstractpiece.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/libs/vlayout/vabstractpiece.cpp b/src/libs/vlayout/vabstractpiece.cpp
index 66efcbe6c..3e0b2093c 100644
--- a/src/libs/vlayout/vabstractpiece.cpp
+++ b/src/libs/vlayout/vabstractpiece.cpp
@@ -1929,12 +1929,15 @@ QPainterPath VAbstractPiece::PainterPath(const QVector<QPointF> &points)
     QPainterPath path;
     path.setFillRule(Qt::WindingFill);
 
-    path.moveTo(points.at(0));
-    for (qint32 i = 1; i < points.count(); ++i)
+    if (not points.isEmpty())
     {
-        path.lineTo(points.at(i));
+        path.moveTo(points.at(0));
+        for (qint32 i = 1; i < points.count(); ++i)
+        {
+            path.lineTo(points.at(i));
+        }
+        path.lineTo(points.at(0));
     }
-    path.lineTo(points.at(0));
 
     return path;
 }