From 31e78d670de8012101d827c1fd2641354c583bc0 Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sun, 25 Feb 2018 18:17:59 -0500
Subject: [PATCH] Ensure ROUTER_PREVIEW_ITEM draws on top of all normal layers

Fixes: lp:1751646
* https://bugs.launchpad.net/kicad/+bug/1751646
---
 pcbnew/router/router_preview_item.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/pcbnew/router/router_preview_item.cpp b/pcbnew/router/router_preview_item.cpp
index a8bf217650..0194019c62 100644
--- a/pcbnew/router/router_preview_item.cpp
+++ b/pcbnew/router/router_preview_item.cpp
@@ -21,6 +21,7 @@
 
 #include <deque>
 #include <gal/color4d.h>
+#include <view/view.h>
 
 #include <geometry/shape_rect.h>
 #include <geometry/shape_convex.h>
@@ -269,6 +270,7 @@ void ROUTER_PREVIEW_ITEM::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
 
     case SH_POLY_SET:
     case SH_COMPOUND:
+    case SH_ARC:
         break;          // Not yet in use
         }
     }
@@ -341,6 +343,6 @@ const COLOR4D ROUTER_PREVIEW_ITEM::assignColor( int aStyle ) const
     return color;
 }
 
-const int ROUTER_PREVIEW_ITEM::ClearanceOverlayDepth = -300;
-const int ROUTER_PREVIEW_ITEM::BaseOverlayDepth = -310;
-const int ROUTER_PREVIEW_ITEM::ViaOverlayDepth = -346;
+const int ROUTER_PREVIEW_ITEM::ClearanceOverlayDepth = -VIEW::VIEW_MAX_LAYERS - 10;
+const int ROUTER_PREVIEW_ITEM::BaseOverlayDepth = -VIEW::VIEW_MAX_LAYERS - 20;
+const int ROUTER_PREVIEW_ITEM::ViaOverlayDepth = -VIEW::VIEW_MAX_LAYERS - 50;