From b104f0dfa570c169cacf9badd3d9cce678562159 Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Sat, 28 Mar 2015 14:26:49 +0200
Subject: [PATCH] Fixed crash. If we have no points in the seam allowence path
 just don't show him.

--HG--
branch : develop
---
 src/app/geometry/vdetail.cpp | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/app/geometry/vdetail.cpp b/src/app/geometry/vdetail.cpp
index bfe8374c6..4169fcf68 100644
--- a/src/app/geometry/vdetail.cpp
+++ b/src/app/geometry/vdetail.cpp
@@ -462,15 +462,18 @@ QPainterPath VDetail::ContourPath(const VContainer *data) const
     // seam allowence
     if (getSeamAllowance() == true)
     {
-        QPainterPath ekv;
-        ekv.moveTo(pointsEkv.at(0));
-        for (qint32 i = 1; i < pointsEkv.count(); ++i)
+        if (not pointsEkv.isEmpty())
         {
-            ekv.lineTo(pointsEkv.at(i));
-        }
+            QPainterPath ekv;
+            ekv.moveTo(pointsEkv.at(0));
+            for (qint32 i = 1; i < pointsEkv.count(); ++i)
+            {
+                ekv.lineTo(pointsEkv.at(i));
+            }
 
-        path.addPath(ekv);
-        path.setFillRule(Qt::WindingFill);
+            path.addPath(ekv);
+            path.setFillRule(Qt::WindingFill);
+        }
     }
 
     return path;