From 3514892bc2945a44b643786809540659693a58dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Josef=20=C5=A0pa=C4=8Dek?=
 <michal.josef.spacek@gmail.com>
Date: Fri, 14 Feb 2025 15:00:09 +0100
Subject: [PATCH] Fix LAYER 62 DXF output in case of disabled layer

If the layer is disabled, color has negative value.
---
 src/dwg.spec | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/dwg.spec b/src/dwg.spec
index 1aa3eba43..5cf132bfa 100644
--- a/src/dwg.spec
+++ b/src/dwg.spec
@@ -3799,6 +3799,11 @@ DWG_TABLE (LAYER)
     }
   }
   SINCE (R_13b1) {
+    DXF {
+      if (! FIELD_VALUE(on)) {
+        FIELD_VALUE (color.index) = - FIELD_VALUE(color.index); // Negative value in case of disabled layer
+      }
+    }
     FIELD_CMC (color, 62);
   }
   VERSIONS (R_13b1, R_14) {