From ba6040bbcd940f693fbc1031fe4a5a29466aa883 Mon Sep 17 00:00:00 2001
From: Ell <ell_se@yahoo.com>
Date: Wed, 15 Jan 2020 21:38:10 +0200
Subject: [PATCH] app: allow calling gimp_tile_handler_validate_validate() with
 a NULL rect

... and validate the entire buffer.
---
 app/gegl/gimptilehandlervalidate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/gegl/gimptilehandlervalidate.c b/app/gegl/gimptilehandlervalidate.c
index f7b24c0c6f..4dde27091d 100644
--- a/app/gegl/gimptilehandlervalidate.c
+++ b/app/gegl/gimptilehandlervalidate.c
@@ -511,6 +511,9 @@ gimp_tile_handler_validate_validate (GimpTileHandlerValidate *validate,
 
   klass = GIMP_TILE_HANDLER_VALIDATE_GET_CLASS (validate);
 
+  if (! rect)
+    rect = gegl_buffer_get_extent (buffer);
+
   if (intersect)
     {
       cairo_region_t *region = cairo_region_copy (validate->dirty_region);