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vim-patch:8.1.0372: screen updating slow when 'cursorline' is set (#8986)

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Problem:    Screen updating slow when 'cursorline' is set.
Solution:   Only redraw the old and new cursor line, not all lines.
90a997987d
This commit is contained in:
Justin M. Keyes
2018-09-12 23:06:26 +02:00
committed by GitHub
parent 9124bb755c
commit 7a26b9b62b
3 changed files with 37 additions and 22 deletions
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24
src/nvim/screen.c
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@@ -200,24 +200,28 @@ void redraw_buf_later(buf_T *buf, int type)
* may become invalid and the whole window will have to be redrawn.
*/
void
redrawWinline (
redrawWinline(
win_T *wp,
linenr_T lnum,
int invalid /* window line height is invalid now */
)
{
int i;
if (curwin->w_redraw_top == 0 || curwin->w_redraw_top > lnum)
curwin->w_redraw_top = lnum;
if (curwin->w_redraw_bot == 0 || curwin->w_redraw_bot < lnum)
curwin->w_redraw_bot = lnum;
redraw_later(VALID);
if (wp->w_redraw_top == 0 || wp->w_redraw_top > lnum) {
wp->w_redraw_top = lnum;
}
if (wp->w_redraw_bot == 0 || wp->w_redraw_bot < lnum) {
wp->w_redraw_bot = lnum;
}
redraw_win_later(wp, VALID);
if (invalid) {
/* A w_lines[] entry for this lnum has become invalid. */
i = find_wl_entry(curwin, lnum);
if (i >= 0)
curwin->w_lines[i].wl_valid = FALSE;
// A w_lines[] entry for this lnum has become invalid.
i = find_wl_entry(wp, lnum);
if (i >= 0) {
wp->w_lines[i].wl_valid = false;
}
}
}