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When checking ranges in tty_cmd_cells, cannot use the tty cursor

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position and tty_cursor because it may be at the final invisible cursor
position on automargin terminals. The text to be drawn is confined to
the pane, so use the pane cursor position for the checks instead. Fix
from Anindya Mukherjee, redraw problem reported by naddy@.
This commit is contained in:
nicm 2021-10-14 09:54:51 +00:00
parent 837ca176d1
commit d0ab1a837a
1 changed files with 13 additions and 8 deletions
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21
tty.c
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@ -1993,8 +1993,9 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
void
tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
{
struct overlay_ranges r;
u_int i, px;
struct overlay_ranges r;
u_int i, px, py, cx;
char *cp = ctx->ptr;
if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1))
return;
@ -2017,16 +2018,20 @@ tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
tty_margin_off(tty);
tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
tty_attributes(tty, ctx->cell, &ctx->defaults, ctx->palette);
px = tty->cx;
tty_check_overlay_range(tty, px, tty->cy, ctx->num, &r);
/* Get tty position from pane position for overlay check. */
px = ctx->xoff + ctx->ocx - ctx->wox;
py = ctx->yoff + ctx->ocy - ctx->woy;
tty_check_overlay_range(tty, px, py, ctx->num, &r);
for (i = 0; i < OVERLAY_MAX_RANGES; i++) {
if (r.nx[i] == 0)
continue;
tty_cursor(tty, r.px[i], tty->cy);
tty_putn(tty, (char *)ctx->ptr + r.px[i] - px, r.nx[i],
r.nx[i]);
/* Convert back to pane position for printing. */
cx = r.px[i] - ctx->xoff + ctx->wox;
tty_cursor_pane_unless_wrap(tty, ctx, cx, ctx->ocy);
tty_putn(tty, cp + r.px[i] - px, r.nx[i], r.nx[i]);
}
}