From d7bb83ddcbbe947e7d1657d09cde5df8fbfe7f4f Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sun, 25 Feb 2018 15:01:17 -0500
Subject: [PATCH] Add a REPAINT flag for faster redraw when bounding box hasn't
 changed

---
 common/view/view.cpp                 | 2 +-
 gerbview/events_called_functions.cpp | 2 +-
 include/view/view_item.h             | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/view/view.cpp b/common/view/view.cpp
index b2d5a87e10..b3c37afdd2 100644
--- a/common/view/view.cpp
+++ b/common/view/view.cpp
@@ -1092,7 +1092,7 @@ void VIEW::invalidateItem( VIEW_ITEM* aItem, int aUpdateFlags )
 
         if( IsCached( layerId ) )
         {
-            if( aUpdateFlags & ( GEOMETRY | LAYERS ) )
+            if( aUpdateFlags & ( GEOMETRY | LAYERS | REPAINT ) )
                 updateItemGeometry( aItem, layerId );
             else if( aUpdateFlags & COLOR )
                 updateItemColor( aItem, layerId );
diff --git a/gerbview/events_called_functions.cpp b/gerbview/events_called_functions.cpp
index bca5f36c63..8d5043e97f 100644
--- a/gerbview/events_called_functions.cpp
+++ b/gerbview/events_called_functions.cpp
@@ -533,7 +533,7 @@ void GERBVIEW_FRAME::OnSelectOptionToolbar( wxCommandEvent& event )
         auto view = GetGalCanvas()->GetView();
 
         if( needs_repaint )
-            view->UpdateAllItems( KIGFX::GEOMETRY );
+            view->UpdateAllItems( KIGFX::REPAINT );
         else
             view->UpdateAllItems( KIGFX::COLOR );
 
diff --git a/include/view/view_item.h b/include/view/view_item.h
index 8c1825caa5..67d6dad743 100644
--- a/include/view/view_item.h
+++ b/include/view/view_item.h
@@ -57,6 +57,7 @@ enum VIEW_UPDATE_FLAGS {
     GEOMETRY    = 0x04,     /// Position or shape has changed
     LAYERS      = 0x08,     /// Layers have changed
     INITIAL_ADD = 0x10,     /// Item is being added to the view
+    REPAINT     = 0x20,     /// Item needs to be redrawn
     ALL         = 0xef      /// All except INITIAL_ADD
 };