commit 11a58af66fa5c442f0a22c5d59beabf187ed4e89
author Bram Moolenaar <Bram@vim.org> Thu Oct 24 22:32:31 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Thu Oct 24 22:32:31 2019 +0200
tree 19b2b26b7907004365c26f85a667655c45c17d3a
parent aa1f04d09286085c4031bc7c4ca9fa672f6f4905

patch 8.1.2214: too much is redrawn when 'cursorline' is set

Problem:    Too much is redrawn when 'cursorline' is set.
Solution:   Don't do a complete redraw. (closes #5079)

src/drawscreen.c

diff --git a/src/drawscreen.c b/src/drawscreen.c
index f6776a1..abf34b5 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -2124,7 +2124,12 @@
 				|| (wp->w_match_head != NULL
 						    && buf->b_mod_xlines != 0)
 #endif
-				)))))
+				))))
+#ifdef FEAT_SYN_HL
+		|| (wp->w_p_cul && (lnum == wp->w_cursor.lnum
+					     || lnum == wp->w_last_cursorline))
+#endif
+				)
 	{
 #ifdef FEAT_SEARCH_EXTRA
 	    if (lnum == mod_top)