From 3587789ae2c22c1b8f44bd7fc3878a4b7585e475 Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Sat, 25 Aug 2018 23:18:29 +0100
Subject: [PATCH] Update canvas after changing netclass settings.

Fixes: lp:1786937
* https://bugs.launchpad.net/kicad/+bug/1786937
---
 pcbnew/pcb_edit_frame.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pcbnew/pcb_edit_frame.cpp b/pcbnew/pcb_edit_frame.cpp
index f4898e7510..64c41899c1 100644
--- a/pcbnew/pcb_edit_frame.cpp
+++ b/pcbnew/pcb_edit_frame.cpp
@@ -810,6 +810,13 @@ void PCB_EDIT_FRAME::ShowDesignRulesEditor( wxCommandEvent& event )
         ReCreateAuxiliaryToolbar();
         m_Layers->ReFillRender();
         OnModify();
+
+        if( GetGalCanvas() )
+        {
+            GetGalCanvas()->GetView()->RecacheAllItems();
+            GetGalCanvas()->GetView()->MarkTargetDirty( KIGFX::TARGET_NONCACHED );
+        }
+        GetCanvas()->Refresh();
     }
 }