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authorzeertzjq <zeertzjq@outlook.com>2024-02-08 11:34:55 +0100
committerChristian Brabandt <cb@256bit.org>2024-02-08 11:34:55 +0100
commit7ce34c9a947b17a8b5e81e7c2335a63552182d10 (patch)
tree5b1667c46abd1b0a603fb9d66ea4eefbcd56f856 /src/change.c
parentb8170143c8f8a115b5be59a94d10f931d3cd567c (diff)
patch 9.1.0082: Redrawing can be improved when deleting lines with 'cursorline'v9.1.0082
Problem: Redrawing can be improved when deleting lines with 'cursorline'. Solution: Use smarter invalidation and adjustment. Remove unnecessary UPD_VALID as it is already set at the top of the loop. Make the test for #4862 fail without the fix. (zeertzjq) closes: #13986 Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
Diffstat (limited to 'src/change.c')
-rw-r--r--src/change.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/src/change.c b/src/change.c
index c0b8785ba1..0ea424f989 100644
--- a/src/change.c
+++ b/src/change.c
@@ -656,22 +656,20 @@ changed_common(
set_topline(wp, wp->w_topline);
#endif
// If lines have been added or removed, relative numbering always
- // requires a redraw.
+ // requires an update even if cursor didn't move.
if (wp->w_p_rnu && xtra != 0)
- {
wp->w_last_cursor_lnum_rnu = 0;
- redraw_win_later(wp, UPD_VALID);
- }
+
#ifdef FEAT_SYN_HL
- // Cursor line highlighting probably need to be updated with
- // "UPD_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 (wp->w_p_cul && wp->w_last_cursorline >= lnum)
{
- if (xtra == 0)
- redraw_win_later(wp, UPD_VALID);
- else if (lnum <= wp->w_last_cursorline)
- redraw_win_later(wp, UPD_SOME_VALID);
+ if (wp->w_last_cursorline < lnume)
+ // If 'cursorline' was inside the change, it has already
+ // been invalidated in w_lines[] by the loop above.
+ wp->w_last_cursorline = 0;
+ else
+ // If 'cursorline' was below the change, adjust its lnum.
+ wp->w_last_cursorline += xtra;
}
#endif
}