Patch 8.2.4644
Problem: Redrawing too often when 'relativenumber' is set.
Solution: Only redraw when the cursor line changed. (Lewis Russell,
closes #10040)
Files: src/change.c, src/drawscreen.c, src/structs.h
*** ../vim-8.2.4643/src/change.c 2022-02-16 21:50:53.966082550 +0000
--- src/change.c 2022-03-29 11:30:36.911350458 +0100
***************
*** 641,647 ****
set_topline(wp, wp->w_topline);
#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
--- 641,647 ----
set_topline(wp, wp->w_topline);
#endif
// Relative numbering may require updating more.
! if (wp->w_p_rnu && xtra != 0)
redraw_win_later(wp, SOME_VALID);
#ifdef FEAT_SYN_HL
// Cursor line highlighting probably need to be updated with
*** ../vim-8.2.4643/src/drawscreen.c 2022-03-27 19:26:29.330889018 +0100
--- src/drawscreen.c 2022-03-29 11:34:43.743228669 +0100
***************
*** 2507,2517 ****
}
else
{
! if (wp->w_p_rnu)
{
#ifdef FEAT_FOLDING
! // 'relativenumber' set: The text doesn't need to be drawn, but
! // the number column nearly always does.
fold_count = foldedCount(wp, lnum, &win_foldinfo);
if (fold_count != 0)
fold_line(wp, fold_count, &win_foldinfo, lnum, row);
--- 2507,2517 ----
}
else
{
! if (wp->w_p_rnu && wp->w_last_cursor_lnum_rnu != wp->w_cursor.lnum)
{
#ifdef FEAT_FOLDING
! // 'relativenumber' set and the cursor moved vertically: The
! // text doesn't need to be drawn, but the number column does.
fold_count = foldedCount(wp, lnum, &win_foldinfo);
if (fold_count != 0)
fold_line(wp, fold_count, &win_foldinfo, lnum, row);
***************
*** 2553,2558 ****
--- 2553,2559 ----
// update w_last_cursorline.
wp->w_last_cursorline = wp->w_p_cul ? wp->w_cursor.lnum : 0;
#endif
+ wp->w_last_cursor_lnum_rnu = wp->w_p_rnu ? wp->w_cursor.lnum : 0;
#ifdef FEAT_VTP
// Rewrite the character at the end of the screen line.
*** ../vim-8.2.4643/src/structs.h 2022-03-27 20:04:16.029188564 +0100
--- src/structs.h 2022-03-29 11:34:08.891250735 +0100
***************
*** 3465,3470 ****
--- 3465,3473 ----
colnr_T w_old_visual_col; // last known start of visual part
colnr_T w_old_curswant; // last known value of Curswant
+ linenr_T w_last_cursor_lnum_rnu; // cursor lnum when 'rnu' was last
+ // redrawn
+
lcs_chars_T w_lcs_chars; // 'listchars' characters
/*
*** ../vim-8.2.4643/src/version.c 2022-03-28 18:16:43.619673423 +0100
--- src/version.c 2022-03-29 11:32:07.455315837 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 4644,
/**/
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