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term: erasing characters now splits sixels instead of deleting them

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Daniel Eklöf 2020-06-27 15:22:31 +02:00
parent 0953ffd2d3
commit ae727e372a
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GPG key ID: 5BBD4992C116573F
3 changed files with 30 additions and 18 deletions
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34
sixel.c
View file

@ -334,14 +334,14 @@ _sixel_split_by_rectangle(
}
}
static void
void
sixel_split_by_rectangle(
struct terminal *term, int _row, int col, int height, int width)
struct terminal *term, int row, int col, int height, int width)
{
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
const int start = (term->grid->offset + _row) & (term->grid->num_rows - 1);
const int start = (term->grid->offset + row) & (term->grid->num_rows - 1);
const int end = (start + height - 1) & (term->grid->num_rows - 1);
const bool wraps = end < start;
@ -356,14 +356,14 @@ sixel_split_by_rectangle(
/* Row numbers are absolute */
static void
sixel_split_at_point(struct terminal *term, int row, int col)
_sixel_split_by_row(struct terminal *term, int row, int col, int width)
{
assert(col >= 0);
assert(row >= 0);
assert(row < term->grid->num_rows);
assert(col >= 0);
assert(col < term->grid->num_cols);
assert(col + width <= term->grid->num_cols);
if (likely(tll_length(term->grid->sixel_images) == 0))
return;
@ -378,10 +378,13 @@ sixel_split_at_point(struct terminal *term, int row, int col)
if (row >= six_start && row <= six_end) {
const int col_start = six->pos.col;
const int col_end = six->pos.col + six->cols;
const int col_end = six->pos.col + six->cols - 1;
if (col >= col_start && col < col_end) {
sixel_split(term, six, row, col, 1, 1);
if ((col <= col_start && col + width - 1 >= col_start) ||
(col <= col_end && col + width - 1 >= col_end) ||
(col >= col_start && col + width - 1 <= col_end))
{
sixel_split(term, six, row, col, 1, width);
sixel_erase(term, six);
tll_remove(term->grid->sixel_images, it);
}
@ -389,13 +392,20 @@ sixel_split_at_point(struct terminal *term, int row, int col)
}
}
void
sixel_split_by_row(struct terminal *term, int row, int col, int width)
{
_sixel_split_by_row(
term,
(term->grid->offset + row) & (term->grid->num_rows - 1),
col, width);
}
void
sixel_split_at_cursor(struct terminal *term)
{
sixel_split_at_point(
term,
(term->grid->offset + term->grid->cursor.point.row) & (term->grid->num_rows - 1),
term->grid->cursor.point.col);
sixel_split_by_row(
term, term->grid->cursor.point.row, term->grid->cursor.point.col, 1);
}
void

4
sixel.h
View file

@ -15,6 +15,10 @@ void sixel_destroy(struct sixel *sixel);
/* Row numbers are relative to current grid offset */
void sixel_delete_in_range(struct terminal *term, int row_start, int row_end);
void sixel_delete_at_row(struct terminal *term, int row);
void sixel_split_by_rectangle(
struct terminal *term, int row, int col, int height, int width);
void sixel_split_by_row(struct terminal *term, int row, int col, int width);
void sixel_split_at_cursor(struct terminal *term);
void sixel_colors_report_current(struct terminal *term);

10
terminal.c
View file

@ -1599,9 +1599,7 @@ term_erase(struct terminal *term, const struct coord *start, const struct coord
if (start->row == end->row) {
struct row *row = grid_row(term->grid, start->row);
erase_cell_range(term, row, start->col, end->col);
/* TODO: split instead */
sixel_delete_at_row(term, start->row);
sixel_split_by_row(term, start->row, start->col, end->col - start->col + 1);
return;
}
@ -1609,14 +1607,14 @@ term_erase(struct terminal *term, const struct coord *start, const struct coord
erase_cell_range(
term, grid_row(term->grid, start->row), start->col, term->cols - 1);
sixel_split_by_row(term, start->row, start->col, term->cols - start->col);
for (int r = start->row + 1; r < end->row; r++)
erase_line(term, grid_row(term->grid, r));
sixel_split_by_rectangle(term, start->row + 1, 0, end->row - start->row, term->cols);
erase_cell_range(term, grid_row(term->grid, end->row), 0, end->col);
/* TODO: split instead */
sixel_delete_in_range(term, start->row, end->row);
sixel_split_by_row(term, end->row, 0, end->col + 1);
}
int