/* Copyright (C) 2019  C. McEnroe <june@causal.agency>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdbool.h>
#include <wchar.h>

#define MIN(a, b) ((a) < (b) ? (a) : (b))

typedef unsigned uint;

enum Attr {
	Bold      = 1 << 0,
	Dim       = 1 << 1,
	Italic    = 1 << 2,
	Underline = 1 << 3,
	Blink     = 1 << 4,
	Reverse   = 1 << 5,
};

struct Style {
	enum Attr attr;
	int bg, fg;
};

struct Cell {
	struct Style style;
	wchar_t ch;
};

struct Display {
	bool cursor;
	uint rows, cols;
	uint y, x;
	const struct Cell *cells;
};

void termInit(uint rows, uint cols);
void termUpdate(wchar_t ch);
int termSnapshot(int fd);
struct Display termDisplay(void);