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vim-patch:9.0.0673: first line wong with 'smoothscroll' and 'scrolloff' zero

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Problem:    First line not scrolled properly with 'smoothscroll' and
            'scrolloff' zero and using "k".
Solution:   Make sure the cursor position is visible.

46b54747c5

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
Luuk van Baal
2023-04-26 17:23:42 +02:00
parent 3a1973debc
commit d95697d6d4
3 changed files with 36 additions and 2 deletions
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18
src/nvim/move.c
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@@ -203,7 +203,7 @@ void update_topline(win_T *wp)
bool check_topline = false;
// If the cursor is above or near the top of the window, scroll the window
// to show the line the cursor is in, with 'scrolloff' context.
if (wp->w_topline > 1) {
if (wp->w_topline > 1 || wp->w_skipcol > 0) {
// If the cursor is above topline, scrolling is always needed.
// If the cursor is far below topline and there is no folding,
// scrolling down is never needed.
@@ -211,6 +211,15 @@ void update_topline(win_T *wp)
check_topline = true;
} else if (check_top_offset()) {
check_topline = true;
} else if (wp->w_skipcol > 0 && wp->w_cursor.lnum == wp->w_topline) {
colnr_T vcol;
// check the cursor position is visible. Add 3 for the ">>>"
// displayed in the top-left.
getvvcol(wp, &wp->w_cursor, &vcol, NULL, NULL);
if (wp->w_skipcol + 3 >= vcol) {
check_topline = true;
}
}
}
// Check if there are more filler lines than allowed.
@@ -1499,6 +1508,7 @@ void scroll_cursor_top(int min_scroll, int always)
linenr_T top; // just above displayed lines
linenr_T bot; // just below displayed lines
linenr_T old_topline = curwin->w_topline;
int old_skipcol = curwin->w_skipcol;
linenr_T old_topfill = curwin->w_topfill;
linenr_T new_topline;
int off = (int)get_scrolloff_value(curwin);
@@ -1588,7 +1598,13 @@ void scroll_cursor_top(int min_scroll, int always)
}
}
check_topfill(curwin, false);
// TODO(vim): if the line doesn't fit may optimize w_skipcol
if (curwin->w_topline == curwin->w_cursor.lnum) {
curwin->w_skipcol = 0;
redraw_later(curwin, UPD_NOT_VALID);
}
if (curwin->w_topline != old_topline
|| curwin->w_skipcol != old_skipcol
|| curwin->w_topfill != old_topfill) {
curwin->w_valid &=
~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);