From 25d526cbc6b1afce5986a84a5b44d773f4a9e8a0 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Thu, 26 May 2016 17:14:08 +0200
Subject: [PATCH] Fixed a crash when GRLineArray is called with an empty
 vector.

---
 common/gr_basic.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/common/gr_basic.cpp b/common/gr_basic.cpp
index 1e913cb839..ebb58983d9 100644
--- a/common/gr_basic.cpp
+++ b/common/gr_basic.cpp
@@ -428,10 +428,13 @@ void GRMixedLine( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
 void GRLineArray( EDA_RECT* aClipBox, wxDC* aDC, std::vector<wxPoint>& aLines,
                   int aWidth, EDA_COLOR_T aColor )
 {
+    if( aLines.empty() )
+        return;
+
     GRSetColorPen( aDC, aColor, aWidth );
 
     if( aClipBox )
-        aClipBox->Inflate(aWidth/2);
+        aClipBox->Inflate( aWidth / 2 );
 
 #if defined( __WXMAC__ ) && defined( USE_WX_GRAPHICS_CONTEXT )
     wxGCDC *gcdc = wxDynamicCast( aDC, wxGCDC );