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1a0de0017f
This function handles erasing of an URI range. That is, a range of the row is being either erased, or overwritten (from the URI perspective, these two are the same thing). We handle both partial overwrites (split up, or truncate URI), as well as complete overwrites (remove URI).
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
#pragma once
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#include <stddef.h>
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#include "debug.h"
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#include "terminal.h"
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struct grid *grid_snapshot(const struct grid *grid);
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void grid_free(struct grid *grid);
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void grid_swap_row(struct grid *grid, int row_a, int row_b);
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struct row *grid_row_alloc(int cols, bool initialize);
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void grid_row_free(struct row *row);
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void grid_resize_without_reflow(
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struct grid *grid, int new_rows, int new_cols,
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int old_screen_rows, int new_screen_rows);
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void grid_resize_and_reflow(
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struct grid *grid, int new_rows, int new_cols,
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int old_screen_rows, int new_screen_rows,
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size_t tracking_points_count,
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struct coord *const _tracking_points[static tracking_points_count]);
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static inline int
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grid_row_absolute(const struct grid *grid, int row_no)
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{
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return (grid->offset + row_no) & (grid->num_rows - 1);
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}
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static inline int
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grid_row_absolute_in_view(const struct grid *grid, int row_no)
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{
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return (grid->view + row_no) & (grid->num_rows - 1);
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}
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static inline struct row *
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_grid_row_maybe_alloc(struct grid *grid, int row_no, bool alloc_if_null)
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{
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xassert(grid->offset >= 0);
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int real_row = grid_row_absolute(grid, row_no);
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struct row *row = grid->rows[real_row];
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if (row == NULL && alloc_if_null) {
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row = grid_row_alloc(grid->num_cols, false);
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grid->rows[real_row] = row;
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}
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xassert(row != NULL);
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return row;
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}
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static inline struct row *
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grid_row(struct grid *grid, int row_no)
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{
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return _grid_row_maybe_alloc(grid, row_no, false);
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}
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static inline struct row *
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grid_row_and_alloc(struct grid *grid, int row_no)
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{
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return _grid_row_maybe_alloc(grid, row_no, true);
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}
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static inline struct row *
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grid_row_in_view(struct grid *grid, int row_no)
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{
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xassert(grid->view >= 0);
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int real_row = grid_row_absolute_in_view(grid, row_no);
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struct row *row = grid->rows[real_row];
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xassert(row != NULL);
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return row;
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}
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void grid_row_uri_range_add(struct row *row, struct row_uri_range range);
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void grid_row_uri_range_erase(struct row *row, int start, int end);
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static inline void
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grid_row_uri_range_destroy(struct row_uri_range *range)
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{
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free(range->uri);
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}
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static inline void
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grid_row_reset_extra(struct row *row)
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{
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if (likely(row->extra == NULL))
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return;
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tll_foreach(row->extra->uri_ranges, it) {
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grid_row_uri_range_destroy(&it->item);
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tll_remove(row->extra->uri_ranges, it);
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}
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free(row->extra);
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row->extra = NULL;
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}
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