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vim-patch:9.0.1610: display is wrong when 'smoothscroll' is set

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Problem:    Display is wrong when 'smoothscroll' is set and scrolling multiple
            lines.
Solution:   Redraw with UPD_NOT_VALID when "skipcol" is or was set.
            (closes vim/vim#12490, closes vim/vim#12468)

d9a92dc70b
This commit is contained in:
zeertzjq
2023-06-06 06:34:02 +08:00
parent 9978a9996d
commit fc908b5006
3 changed files with 31 additions and 14 deletions
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7
src/nvim/move.c
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@@ -1344,7 +1344,6 @@ bool scrollup(long line_count, int byfold)
int width1 = curwin->w_width_inner - curwin_col_off();
int width2 = width1 + curwin_col_off2();
unsigned size = 0;
linenr_T prev_topline = curwin->w_topline;
const colnr_T prev_skipcol = curwin->w_skipcol;
if (do_sms) {
@@ -1397,9 +1396,9 @@ bool scrollup(long line_count, int byfold)
}
}
if (curwin->w_topline == prev_topline
|| curwin->w_skipcol != prev_skipcol) {
// need to redraw because wl_size of the topline may now be invalid
if (prev_skipcol > 0 || curwin->w_skipcol > 0) {
// need to redraw more, because wl_size of the (new) topline may
// now be invalid
redraw_later(curwin, UPD_NOT_VALID);
}
} else {