/*
 * sch.h - Parse Eeschema .sch file
 *
 * Written 2016 by Werner Almesberger
 * Copyright 2016 by Werner Almesberger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */


#ifndef SCH_H
#define SCH_H

#include <stdbool.h>

#include "dwg.h"
#include "text.h"
#include "lib.h"


enum sch_state {
	sch_basic,	/* basic state */
	sch_descr,	/* prelude and description */
	sch_comp,	/* component */
	sch_sheet,	/* sub-sheet */
	sch_text,	/* text or label */
	sch_wire,	/* wire */
};

struct sch_ctx {
	enum sch_state state;
	void (*wire)(int sx, int sy, int ex, int ey);

	/* text and component */

	int x, y;	/* saved coordinates */

	/* text */

	void (*text)(int x, int y, const char *s, int dir, int dim,
	    enum dwg_shape shape);
	int dir;	/* orientation */
	int dim;	/* dimension */
	enum dwg_shape shape;

	/* component */

	const struct comp *comp; /* current component */
	unsigned unit;	/* unit of current component */
	struct sch_field *fields;

	/* subsheet */

	unsigned h, w;
	const char *sheet;
	unsigned sheet_dim;
	const char *file;
	unsigned file_dim;
	bool rotated;

	unsigned lineno;
};


void decode_alignment(struct text *txt, char hor, char vert);

bool sch_parse(struct sch_ctx *ctx, const char *line);
void sch_init(struct sch_ctx *ctx);

#endif /* !SCH_H */