mirror of
https://codeberg.org/dnkl/foot.git
synced 2026-02-05 04:06:08 -05:00
bcd111d203
Can scroll up and down, and stops when the beginning/end of history is reached. However, it probably breaks when the entire scrollback buffer has been filled - we need to detect when the view has wrapped around to the current terminal offset. The detection of when we've reached the bottom of the history is also flawed, and only works when we overshoot the bottom with at least a page. Resizing the windows while in a view most likely doesn't work. The view will not detect a wrapped around scrollback buffer. I.e. if the user has scrolled back, and is stationary at a view, but there is still output being produced. Then eventually the scrollback buffer will wrap around. In this case, the correct thing to do is make the view start following the beginning of the history. Right now it doesn't, meaning once the scrollback buffer wraps around, you'll start seeing command output...
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#pragma once
|
|
|
|
#include <stddef.h>
|
|
#include "terminal.h"
|
|
|
|
static inline struct row *
|
|
grid_row(struct grid *grid, int row)
|
|
{
|
|
assert(grid->offset >= 0);
|
|
return grid->rows[(grid->offset + row + grid->num_rows) % grid->num_rows];
|
|
}
|
|
|
|
static inline struct row *
|
|
grid_row_in_view(struct grid *grid, int row)
|
|
{
|
|
assert(grid->view >= 0);
|
|
return grid->rows[(grid->view + row + grid->num_rows) % grid->num_rows];
|
|
}
|
|
|
|
static inline void
|
|
grid_swap_row(struct grid *grid, int row_a, int row_b)
|
|
{
|
|
assert(grid->offset >= 0);
|
|
assert(row_a != row_b);
|
|
assert(row_a >= 0);
|
|
assert(row_b >= 0);
|
|
|
|
int real_a = (grid->offset + row_a + grid->num_rows) % grid->num_rows;
|
|
int real_b = (grid->offset + row_b + grid->num_rows) % grid->num_rows;
|
|
|
|
struct row *tmp = grid->rows[real_a];
|
|
grid->rows[real_a] = grid->rows[real_b];
|
|
grid->rows[real_b] = tmp;
|
|
|
|
grid->rows[real_a]->dirty = true;
|
|
grid->rows[real_b]->dirty = true;
|
|
}
|
|
|
|
#if 0
|
|
struct cell *grid_get_range(struct grid *grid, int start, int *length);
|
|
void grid_memclear(struct grid *grid, int start, int length);
|
|
void grid_memmove(struct grid *grid, int dst, int src, int length);
|
|
#endif
|