From: Eli Zaretskii <eliz@gnu.org>
Date: Mon, 26 Jun 2017 16:38:17 +0000 (+0300)
Subject: Update IT's metrics while simulating display
X-Git-Tag: emacs-26.0.90~518^2~156^2~18
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=67c8a219e670eed317acdffc68a2888e2c557e79;p=emacs.git

Update IT's metrics while simulating display

* src/xdisp.c (maybe_produce_line_number): Update IT's metrics
also when glyph_row is NULL.  This is important for move_it_*
functions.
---

diff --git a/src/xdisp.c b/src/xdisp.c
index aa75fcaf77c..3283f9ee971 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -20925,6 +20925,13 @@ maybe_produce_line_number (struct it *it)
       it->max_phys_descent = max (row->phys_height - row->phys_ascent,
 				  tem_it.max_phys_descent);
     }
+  else
+    {
+      it->max_ascent = max (it->max_ascent, tem_it.max_ascent);
+      it->max_descent = max (it->max_descent, tem_it.max_descent);
+      it->max_phys_ascent = max (it->max_phys_ascent, tem_it.max_phys_ascent);
+      it->max_phys_descent = max (it->max_phys_descent, tem_it.max_phys_descent);
+    }
 
   bidi_unshelve_cache (itdata, false);
 }