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)
diff --git a/src/change.c b/src/change.c
index da6a72b..f254281 100644
--- a/src/change.c
+++ b/src/change.c
@@ -609,16 +609,21 @@
if (hasAnyFolding(wp))
set_topline(wp, wp->w_topline);
#endif
- // Relative numbering may require updating more. Cursor line
- // highlighting probably needs to be updated if it's below the
- // change (or is using screenline highlighting)
- if (wp->w_p_rnu
-#ifdef FEAT_SYN_HL
- || ((wp->w_p_cul && lnum <= wp->w_last_cursorline)
- || (wp->w_p_culopt_flags & CULOPT_SCRLINE))
-#endif
- )
+ // Relative numbering may require updating more.
+ if (wp->w_p_rnu)
redraw_win_later(wp, SOME_VALID);
+#ifdef FEAT_SYN_HL
+ // Cursor line highlighting probably need to be updated with
+ // "VALID" if it's below the change.
+ // If the cursor line is inside the change we need to redraw more.
+ if (wp->w_p_cul)
+ {
+ if (xtra == 0)
+ redraw_win_later(wp, VALID);
+ else if (lnum <= wp->w_last_cursorline)
+ redraw_win_later(wp, SOME_VALID);
+ }
+#endif
}
}