From 1624320749a801eb62985fb6cd73e62c355a093b Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Tue, 24 Sep 2013 16:00:21 +0200
Subject: [PATCH] Added protection from redrawing while GAL backend is being
 switched.

---
 common/drawpanel_gal.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/drawpanel_gal.cpp b/common/drawpanel_gal.cpp
index 7087d1e86d..221e158f2c 100644
--- a/common/drawpanel_gal.cpp
+++ b/common/drawpanel_gal.cpp
@@ -188,6 +188,10 @@ void EDA_DRAW_PANEL_GAL::Refresh( bool eraseBackground, const wxRect* rect )
 
 void EDA_DRAW_PANEL_GAL::SwitchBackend( GalType aGalType )
 {
+    // Protect from refreshing during backend switch
+    m_pendingRefresh = true;
+    m_refreshTimer.Stop();
+
     // Do not do anything if the currently used GAL is correct
     if( aGalType == m_currentGal && m_gal != NULL )
         return;
@@ -225,6 +229,7 @@ void EDA_DRAW_PANEL_GAL::SwitchBackend( GalType aGalType )
     }
 
     m_currentGal = aGalType;
+    m_pendingRefresh = false;
 }