/* SPDX-License-Identifier: GPL-3.0-only */
/*
 * Keyboard layout management.
 *
 * Copyright (c) 2024, Richard Acayan. All rights reserved.
 */

#ifndef UFKBD_LAYOUT_H
#define UFKBD_LAYOUT_H

#include <stddef.h>

struct ufkbd_key;

struct ufkbd_layout_column {
	double x1_unscaled, x2_unscaled;
	int x1, x2;

	struct ufkbd_key *key;
};

struct ufkbd_layout_row {
	double y1_unscaled, y2_unscaled;
	int y1, y2;

	size_t n_cols;
	struct ufkbd_layout_column *cols;
};

struct ufkbd_layout {
	size_t max_cols;

	size_t n_rows;
	struct ufkbd_layout_row *rows;
};

struct ufkbd_layout *ufkbd_layout_init(void);
void ufkbd_layout_uninit(struct ufkbd_layout *layout);

struct ufkbd_key *ufkbd_layout_search(struct ufkbd_layout *layout, int x, int y,
				      int *x1, int *y1, int *x2, int *y2);
void ufkbd_layout_foreach(struct ufkbd_layout *layout,
			  void (*func)(struct ufkbd_key *key,
				       int x1, int y1, int x2, int y2,
				       void *data),
			  void *data);
void ufkbd_layout_resize(struct ufkbd_layout *layout, int width, int height);

#endif