patch 8.2.4707: redrawing could be a bit more efficient
Problem: Redrawing could be a bit more efficient.
Solution: Optimize redrawing. (closes #10105)
diff --git a/src/change.c b/src/change.c
index afc32b7..bc9195b 100644
--- a/src/change.c
+++ b/src/change.c
@@ -640,9 +640,13 @@
if (hasAnyFolding(wp))
set_topline(wp, wp->w_topline);
#endif
- // Relative numbering may require updating more.
+ // If lines have been added or removed, relative numbering always
+ // requires a redraw.
if (wp->w_p_rnu && xtra != 0)
- redraw_win_later(wp, SOME_VALID);
+ {
+ wp->w_last_cursor_lnum_rnu = 0;
+ redraw_win_later(wp, VALID);
+ }
#ifdef FEAT_SYN_HL
// Cursor line highlighting probably need to be updated with
// "VALID" if it's below the change.