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eda-tools/eeshow/sch.h

126 lines
2.5 KiB
C

/*
* 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 "file.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 */
sch_eof, /* skipping anything after $EndSCHEMATC */
};
struct sheet;
struct sch_obj {
enum sch_obj_type {
sch_obj_wire,
sch_obj_junction,
sch_obj_noconn,
sch_obj_text,
sch_obj_comp,
sch_obj_sheet,
} type;
int x, y;
union {
struct sch_wire {
void (*fn)(int sx, int sy, int ex, int ey);
int ex, ey;
} wire;
struct sch_text {
void (*fn)(int x, int y, const char *s,
int dir, int dim, enum dwg_shape shape);
const char *s;
int dir; /* orientation */
int dim; /* dimension */
enum dwg_shape shape;
} text;
struct sch_comp {
const struct comp *comp; /* current component */
unsigned unit; /* unit of current component */
struct comp_field {
struct text txt;
struct comp_field *next;
} *fields;
int m[6];
} comp;
struct sch_sheet {
unsigned h, w;
const char *name;
unsigned name_dim;
const char *file;
unsigned file_dim;
bool rotated;
const struct sheet *sheet;
/* pointer to sub-sheet; NULL if absent */
struct sheet_field {
char *s;
int x, y;
unsigned dim;
enum dwg_shape shape;
unsigned side;
struct sheet_field *next;
} *fields;
} sheet;
} u;
struct sch_obj *next;
};
struct sheet {
const char *title; /* malloced, unless delta */
struct sch_obj *objs;
struct sch_obj **next_obj;
struct sheet *parent;
struct sheet *next;
};
struct sch_ctx {
enum sch_state state;
bool recurse;
struct sch_obj obj;
struct sheet *curr_sheet;
struct sheet *sheets;
struct sheet **next_sheet;
const struct lib *lib;
};
void decode_alignment(struct text *txt, char hor, char vert);
void sch_render(const struct sheet *sheet);
bool sch_parse(struct sch_ctx *ctx, struct file *file, const struct lib *lib);
void sch_init(struct sch_ctx *ctx, bool recurse);
void sch_free(struct sch_ctx *ctx);
#endif /* !SCH_H */