A fast, lightweight and minimalistic Wayland terminal emulator
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#pragma once
#include <stddef.h>
#include "terminal.h"
void grid_swap_row(struct grid *grid, int row_a, int row_b);
struct row *grid_row_alloc(int cols, bool initialize);
void grid_row_free(struct row *row);
void grid_reflow(
struct grid *grid, int new_rows, int new_cols,
int old_screen_rows, int new_screen_rows,
size_t tracking_points_count,
struct coord *const tracking_points[static tracking_points_count],
size_t compose_count,
const struct composed composed[static compose_count]);
static inline int
grid_row_absolute(const struct grid *grid, int row_no)
{
return (grid->offset + row_no) & (grid->num_rows - 1);
}
static inline int
grid_row_absolute_in_view(const struct grid *grid, int row_no)
{
return (grid->view + row_no) & (grid->num_rows - 1);
}
static inline struct row *
_grid_row_maybe_alloc(struct grid *grid, int row_no, bool alloc_if_null)
{
assert(grid->offset >= 0);
int real_row = grid_row_absolute(grid, row_no);
struct row *row = grid->rows[real_row];
if (row == NULL && alloc_if_null) {
row = grid_row_alloc(grid->num_cols, false);
grid->rows[real_row] = row;
}
assert(row != NULL);
return row;
}
static inline struct row *
grid_row(struct grid *grid, int row_no)
{
return _grid_row_maybe_alloc(grid, row_no, false);
}
static inline struct row *
grid_row_and_alloc(struct grid *grid, int row_no)
{
return _grid_row_maybe_alloc(grid, row_no, true);
}
static inline struct row *
grid_row_in_view(struct grid *grid, int row_no)
{
assert(grid->view >= 0);
int real_row = grid_row_absolute_in_view(grid, row_no);
struct row *row = grid->rows[real_row];
assert(row != NULL);
return row;
}