From be5102a6e02a2f4a76f11b62b8484d8489abe4cc Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sat, 19 Dec 2020 14:47:47 -0500
Subject: [PATCH] Prevent refresh loops on GTK/MSW

Fixes https://gitlab.com/kicad/code/kicad/-/issues/6787

(cherry picked from commit 281180512f358e164e45dfb1ae833d342cfc15ce)
---
 common/draw_panel_gal.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/common/draw_panel_gal.cpp b/common/draw_panel_gal.cpp
index e0fe05c408..72e4a7ab51 100644
--- a/common/draw_panel_gal.cpp
+++ b/common/draw_panel_gal.cpp
@@ -295,7 +295,9 @@ void EDA_DRAW_PANEL_GAL::Refresh( bool aEraseBackground, const wxRect* aRect )
     // This ensures that we will render often enough but not too often.
     if( delta >= MinRefreshPeriod )
     {
-        ForceRefresh();
+        if( !m_pendingRefresh )
+            ForceRefresh();
+
         m_refreshTimer.Start( MinRefreshPeriod, true );
     }
     else if( !m_refreshTimer.IsRunning() )
@@ -309,6 +311,7 @@ void EDA_DRAW_PANEL_GAL::ForceRefresh()
 {
     //wxPaintEvent redrawEvent;
     //wxPostEvent( this, redrawEvent );
+    m_pendingRefresh = true;
     DoRePaint();
 }