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Bugfix.

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This commit is contained in:
Michael Grant 2025-10-12 10:38:47 +01:00
parent 1b959d0eff
commit a37db55689
1 changed files with 16 additions and 15 deletions
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31
screen-write.c
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@ -1750,7 +1750,7 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
u_int y, r, r_start, r_end;
u_int ci_start, ci_end, new_end;
char *saved;
struct screen_write_citem *ci, *new_ci;
struct screen_write_citem *ci, *ci_tmp, *new_ci;
struct window_pane *wp = ctx->wp;
struct visible_ranges *visible_ranges;
struct visible_range *vr;
@ -1760,9 +1760,6 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
screen_write_collect_clear(ctx, s->rupper, 1);
saved = s->write_list[s->rupper].data;
/* For each line being scrolled, copy visible ranges from the line
below to the line above. */
for (y = s->rupper; y < s->rlower; y++) {
cl_src = &s->write_list[y + 1];
cl_dst = &s->write_list[y];
@ -1771,8 +1768,6 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
screen_size_x(s), wp);
vr = visible_ranges->array;
TAILQ_INIT(&cl_dst->items);
/* For each visible range, copy corresponding items from cl_src
to cl_dst. */
for (r = 0; r < visible_ranges->n; r++) {
@ -1780,7 +1775,7 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
r_start = vr[r].px;
r_end = vr[r].px + vr[r].nx;
TAILQ_FOREACH(ci, &cl_src->items, entry) {
TAILQ_FOREACH_SAFE(ci, &cl_src->items, entry, ci_tmp) {
ci_start = ci->x;
ci_end = ci->x + ci->used;
@ -1788,25 +1783,31 @@ screen_write_collect_scroll(struct screen_write_ctx *ctx, u_int bg)
continue;
new_ci = screen_write_get_citem();
new_ci->x = (ci_start < r_start) ? r_start :
ci_start;
new_end = (ci_end > r_end) ? r_end : ci_end;
new_ci->x = (ci_start < r_start) ?
r_start : ci_start;
new_end = (ci_end > r_end) ?
r_end : ci_end;
new_ci->used = new_end - new_ci->x;
new_ci->type = ci->type;
new_ci->wrapped = ci->wrapped;
new_ci->bg = bg;
memcpy(&new_ci->gc, &ci->gc, sizeof(ci->gc));
TAILQ_INSERT_TAIL(&cl_dst->items, new_ci, entry);
if (cl_dst->data == NULL)
cl_dst->data = xmalloc(screen_size_x(s));
memcpy(cl_dst->data, cl_src->data,
screen_size_x(s));
TAILQ_REMOVE(&cl_src->items, ci, entry);
}
}
ctx->s->write_list[y].data = cl_src->data;
}
s->write_list[s->rlower].data = saved;
screen_write_collect_clear(ctx, s->rlower, 1);
/* Also worked without this clear, is this needed? */
ci = screen_write_get_citem();
ci->x = 0;
ci->used = screen_size_x(s);
ci->type = CLEAR;
ci->bg = bg;
TAILQ_INSERT_TAIL(&ctx->s->write_list[s->rlower].items, ci, entry);
}
/* Flush collected lines. */