From d64c89d964c4574ca079437494ed121d52074300 Mon Sep 17 00:00:00 2001
From: jean-pierre charras <jp.charras@wanadoo.fr>
Date: Mon, 12 Mar 2018 13:17:22 +0100
Subject: [PATCH] Footprint editor: Graphic polygon don't follow footprint when
 moving reference anchor

Fixes: lp:1755042
https://bugs.launchpad.net/kicad/+bug/1755042
---
 pcbnew/class_module.cpp | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/pcbnew/class_module.cpp b/pcbnew/class_module.cpp
index 4de37d7641..515dceefeb 100644
--- a/pcbnew/class_module.cpp
+++ b/pcbnew/class_module.cpp
@@ -1184,9 +1184,22 @@ void MODULE::MoveAnchorPosition( const wxPoint& aMoveVector )
         case PCB_MODULE_EDGE_T:
         {
             EDGE_MODULE* edge = static_cast<EDGE_MODULE*>( item );
-            edge->m_Start0 += moveVector;
-            edge->m_End0   += moveVector;
-            edge->SetDrawCoord();
+
+            // Polygonal shape coordinates are specific:
+            // m_Start0 and m_End0 have no meaning. So we have to move corner positions
+            if( edge->GetShape() == S_POLYGON )
+            {
+                for( auto iter = edge->GetPolyShape().Iterate(); iter; iter++ )
+                {
+                    (*iter) += VECTOR2I( moveVector );
+                }
+            }
+            else
+            {
+                edge->m_Start0 += moveVector;
+                edge->m_End0   += moveVector;
+                edge->SetDrawCoord();
+            }
             break;
         }