mirror of
git://projects.qi-hardware.com/eda-tools.git
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381 lines
7.4 KiB
C
381 lines
7.4 KiB
C
/*
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* lib.c - Parse Eeschema .lib file
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include "style.h"
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#include "fig.h"
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#include "text.h"
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#include "lib.h"
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enum text_style {
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text_normal,
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};
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struct obj {
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enum obj_type {
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obj_poly,
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obj_rect,
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obj_circ,
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obj_arc,
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obj_text,
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obj_pin,
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} type;
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unsigned unit;
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unsigned convert;
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union {
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struct poly {
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int thick;
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char fill;
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int points;
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int *x;
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int *y;
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} poly;
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struct {
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int thick;
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char fill;
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int sx, sy;
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int ex, ey;
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} rect;
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struct {
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int x, y;
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int r;
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int thick;
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char fill;
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} circ;
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struct text_obj {
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int orient;
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int x, y;
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int dim;
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char *s;
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enum text_style style;
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char hor_align;
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char vert_align;
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} text;
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struct pin_obj {
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char *name;
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char *number;
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int x, y;
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int length;
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char orient;
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int number_size;
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int name_size;
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char etype;
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// @@@ shape
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} pin;
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} u;
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struct obj *next;
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};
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struct comp {
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const char *name;
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struct obj *objs;
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struct comp *next;
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};
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static struct comp *comps = NULL;
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static struct comp **next_comp = &comps;
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static struct obj **next_obj;
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static inline int mx(int x, int y, int m[6])
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{
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return m[0] + x * m[1] + y * m[2];
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}
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static inline int my(int x, int y, int m[6])
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{
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return m[3] + x * m[4] + y * m[5];
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}
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static void draw_poly(const struct poly *poly, int m[6])
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{
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int n = poly->points;
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int x[n];
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int y[n];
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int i;
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for (i = 0; i != n; i++) {
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x[i] = mx(poly->x[i], poly->y[i], m);
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y[i] = my(poly->x[i], poly->y[i], m);
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}
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fig_poly(n, x, y);
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}
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static void draw_pin(const struct pin_obj *pin, int m[6])
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{
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int x[2], y[2];
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int dx = 0, dy = 0;
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switch (pin->orient) {
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case 'U':
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dy = pin->length;
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break;
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case 'D':
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dy = -pin->length;
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break;
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case 'R':
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dx = pin->length;
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break;
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case 'L':
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dx = -pin->length;
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break;
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default:
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abort();
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}
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x[0] = mx(pin->x, pin->y, m);
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y[0] = my(pin->x, pin->y, m);
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x[1] = mx(pin->x + dx, pin->y + dy, m);
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y[1] = my(pin->x + dx, pin->y + dy, m);
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fig_poly(2, x, y);
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}
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static bool eq(int m[6], int xx, int xy, int yx, int yy)
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{
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return m[1] == xx && m[2] == xy && m[4] == yx && m[5] == yy;
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}
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static unsigned matrix_to_angle(int m[6])
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{
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if (eq(m, 1, 0, 0, -1))
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return 0;
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if (eq(m, 0, -1, -1, 0))
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return 90;
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if (eq(m, 0, 1, 1, 0))
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return 270;
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fprintf(stderr, "unrecognized matrix %d %d %d %d\n",
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m[1], m[2], m[4], m[5]);
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exit(1);
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}
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static void draw_text(const struct text_obj *text, int m[6])
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{
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struct text txt = {
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.s = text->s,
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.size = text->dim,
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.x = mx(text->x, text->y, m),
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.y = my(text->x, text->y, m),
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.rot = matrix_to_angle(m),
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.hor = text_mid,
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.vert = text_mid,
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};
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text_fig(&txt, COLOR_COMP_DWG, WIDTH_COMP_DWG);
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}
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static void draw(const struct obj *obj, int m[6])
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{
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switch (obj->type) {
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case obj_poly:
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draw_poly(&obj->u.poly, m);
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break;
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case obj_rect:
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fig_rect(mx(obj->u.rect.sx, obj->u.rect.sy, m),
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my(obj->u.rect.sx, obj->u.rect.sy, m),
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mx(obj->u.rect.ex, obj->u.rect.ey, m),
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my(obj->u.rect.ex, obj->u.rect.ey, m));
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// @@@
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break;
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case obj_circ:
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break;
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case obj_arc:
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break;
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case obj_text:
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draw_text(&obj->u.text, m);
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break;
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case obj_pin:
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draw_pin(&obj->u.pin, m);
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break;
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default:
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abort();
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}
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}
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void lib_exec(const char *name, unsigned unit, int m[4])
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{
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const struct comp *comp;
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const struct obj *obj;
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for (comp = comps; comp; comp = comp->next)
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if (!strcmp(comp->name, name))
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goto found;
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fprintf(stderr, "\"%s\" not found\n", name);
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exit(1);
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found:
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for (obj = comp->objs; obj; obj = obj->next) {
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if (obj->unit && obj->unit != unit)
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continue;
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draw(obj, m);
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}
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}
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static enum text_style decode_style(const char *s)
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{
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if (!strcmp(s, "Normal"))
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return text_normal;
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abort();
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}
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static bool parse_poly(struct obj *obj, const char *line, int points)
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{
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int i, n;
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obj->u.poly.points = points;
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obj->u.poly.x = malloc(sizeof(int) * points);
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obj->u.poly.y = malloc(sizeof(int) * points);
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for (i = 0; i != points; i++) {
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if (sscanf(line, "%d %d %n",
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obj->u.poly.x + i, obj->u.poly.y + i, &n) != 2)
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return 0;
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line += n;
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}
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if (sscanf(line, "%c", &obj->u.poly.fill) != 1)
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return 0;
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return 1;
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}
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bool lib_parse(struct lib_ctx *ctx, const char *line)
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{
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int n = 0;
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char *s;
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unsigned points;
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struct comp *comp;
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struct obj *obj;
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char *style;
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unsigned zero1, zero2;
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ctx->lineno++;
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switch (ctx->state) {
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case lib_skip:
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if (sscanf(line, "DEF %ms", &s) == 1) {
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ctx->state = lib_def;
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comp = malloc(sizeof(struct comp));
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if (*s == '~')
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s++;
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comp->name = s;
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comp->objs = NULL;
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comp->next = NULL;
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*next_comp = comp;
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next_comp = &comp->next;
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next_obj = &comp->objs;
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return 1;
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}
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return 1;
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case lib_def:
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if (sscanf(line, "DRAW%n", &n) == 0 && n) {
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ctx->state = lib_draw;
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return 1;
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}
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return 1;
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case lib_draw:
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if (sscanf(line, "ENDDRAW%n", &n) == 0 && n) {
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ctx->state = lib_skip;
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return 1;
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}
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obj = malloc(sizeof(struct obj));
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obj->next = NULL;
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*next_obj = obj;
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next_obj = &obj->next;
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if (sscanf(line, "P %u %u %u %u %n",
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&points, &obj->unit, &obj->convert, &obj->u.poly.thick,
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&n) == 4) {
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obj->type = obj_poly;
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if (parse_poly(obj, line + n, points))
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return 1;
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break;
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}
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if (sscanf(line, "S %d %d %d %d %u %u %d %c",
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&obj->u.rect.sx, &obj->u.rect.sy, &obj->u.rect.ex,
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&obj->u.rect.ey, &obj->unit, &obj->convert,
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&obj->u.rect.thick, &obj->u.rect.fill) == 8) {
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obj->type = obj_rect;
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return 1;
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}
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if (sscanf(line, "C %d %d %d %u %u %d %c",
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&obj->u.circ.x, &obj->u.circ.y, &obj->u.circ.r,
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&obj->unit, &obj->convert, &obj->u.circ.thick,
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&obj->u.circ.fill) == 7) {
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obj->type = obj_circ;
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return 1;
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}
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if (sscanf(line, "A %n", &n) == 0 && n) {
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obj->type = obj_arc;
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return 1; // @@@
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}
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n = sscanf(line,
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"T %d %d %d %d %u %u %u \"%m[^\"]\" %ms %u %c %c",
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&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
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&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
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&obj->u.text.s, &style, &zero2,
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&obj->u.text.hor_align, &obj->u.text.vert_align);
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if (n != 12)
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n = sscanf(line,
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"T %d %d %d %d %u %u %u %ms %ms %u %c %c",
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&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
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&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
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&obj->u.text.s, &style, &zero2,
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&obj->u.text.hor_align, &obj->u.text.vert_align);
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if (n == 12) {
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if (zero1 || zero2) {
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fprintf(stderr, "%u: only understand 0 x x\n",
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ctx->lineno);
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exit(1);
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}
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obj->u.text.style = decode_style(style);
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obj->type = obj_text;
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return 1;
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}
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if (sscanf(line, "X %ms %ms %d %d %d %c %d %d %u %u %c",
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&obj->u.pin.name, &obj->u.pin.number,
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&obj->u.pin.x, &obj->u.pin.y, &obj->u.pin.length,
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&obj->u.pin.orient,
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&obj->u.pin.number_size, &obj->u.pin.name_size,
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&obj->unit, &obj->convert, &obj->u.pin.etype) == 11) {
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obj->type = obj_pin;
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return 1;
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}
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break;
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default:
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abort();
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}
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fprintf(stderr, "%u: cannot parse\n\"%s\"\n", ctx->lineno, line);
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exit(1);
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}
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void lib_init(struct lib_ctx *ctx)
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{
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ctx->state = lib_skip;
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ctx->lineno = 0;
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}
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