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terminal: erase_cell_range: erase URI ranges affected by the erase.

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* Partially affected URI ranges are split up
* Completely covered URI ranges are removed
This commit is contained in:
Daniel Eklöf 2021-02-23 15:10:40 +01:00
parent 703d23f066
commit d81439e2f1
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GPG key ID: 5BBD4992C116573F
1 changed files with 52 additions and 2 deletions
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54
terminal.c
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@ -1608,6 +1608,58 @@ erase_cell_range(struct terminal *term, struct row *row, int start, int end)
}
} else
memset(&row->cells[start], 0, (end - start + 1) * sizeof(row->cells[0]));
if (likely(row->extra == NULL))
return;
/* Split up, or remove, URI ranges affected by the erase */
tll_foreach(row->extra->uri_ranges, it) {
if (it->item.start < start && it->item.end >= start) {
/*
* URI crosses the erase *start* point.
*
* Create a new range for the URI part *before* the erased
* cells.
*
* Also modify this URI range’s start point so that we can
* remove it below.
*/
struct row_uri_range range_before = {
.start = it->item.start,
.end = start - 1,
.id = it->item.id,
.uri = xstrdup(it->item.uri),
};
tll_insert_before(row->extra->uri_ranges, it, range_before);
it->item.start = start;
}
if (it->item.start <= end && it->item.end > end) {
/*
* URI crosses the erase *end* point.
*
* Create a new range for the URI part *after* the erased
* cells.
*
* Also modify the URI range’s end point so that we can
* remove it below.
*/
struct row_uri_range range_after = {
.start = end + 1,
.end = it->item.end,
.id = it->item.id,
.uri = xstrdup(it->item.uri),
};
tll_insert_before(row->extra->uri_ranges, it, range_after);
it->item.end = end;
}
if (it->item.start >= start && it->item.end <= end) {
/* URI range completey covered by the erase - remove it */
free(it->item.uri);
tll_remove(row->extra->uri_ranges, it);
}
}
}
static inline void
@ -2163,7 +2215,6 @@ term_scroll_partial(struct terminal *term, struct scroll_region region, int rows
/* Erase scrolled in lines */
for (int r = region.end - rows; r < region.end; r++) {
struct row *row = grid_row_and_alloc(term->grid, r);
grid_row_reset_extra(row);
erase_line(term, row);
}
@ -2234,7 +2285,6 @@ term_scroll_reverse_partial(struct terminal *term,
/* Erase scrolled in lines */
for (int r = region.start; r < region.start + rows; r++) {
struct row *row = grid_row_and_alloc(term->grid, r);
grid_row_reset_extra(row);
erase_line(term, row);
}