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sch2fig/sch.c: separate parsing from rendering

This commit is contained in:
Werner Almesberger 2016-07-31 01:48:31 -03:00
parent 50242899d3
commit 66ca318dbe
3 changed files with 306 additions and 213 deletions

View File

@ -69,6 +69,7 @@ static void usage(const char *name)
int main(int argc, char **argv)
{
struct sch_ctx sch_ctx;
const char *template = NULL;
char c;
int arg;
@ -94,20 +95,17 @@ int main(int argc, char **argv)
if (argc - optind < 1)
usage(*argv);
//gfx_init(&fig_ops, template, n_vars, vars);
gfx_init(&cairo_ops, template, n_vars, vars);
for (arg = optind; arg != argc; arg++) {
if (arg == argc - 1) {
struct sch_ctx ctx;
for (arg = optind; arg != argc - 1; arg++) {
struct lib_ctx ctx;
sch_init(&ctx);
read_file(argv[arg], &ctx, do_sch_parse);
} else {
struct lib_ctx ctx;
lib_init(&ctx);
read_file(argv[arg], &ctx, do_lib_parse);
}
lib_init(&ctx);
read_file(argv[arg], &ctx, do_lib_parse);
}
sch_init(&sch_ctx);
read_file(argv[argc - 1], &sch_ctx, do_sch_parse);
gfx_init(&fig_ops, template, n_vars, vars);
//gfx_init(&cairo_ops, template, n_vars, vars);
sch_render(&sch_ctx);
gfx_end();
}

View File

@ -28,6 +28,157 @@
#include "sch.h"
/* ----- Rendering --------------------------------------------------------- */
static void dump_field(const struct comp_field *field, int m[6])
{
struct text txt = field->txt;
int dx, dy;
dx = txt.x - m[0];
dy = txt.y - m[3];
txt.x = mx(dx, dy, m);
txt.y = my(dx, dy, m);
text_rot(&txt, matrix_to_angle(m));
switch (txt.rot) {
case 180:
text_rot(&txt, 180);
txt.hor = text_flip(txt.hor);
txt.vert = text_flip(txt.vert);
break;
case 270:
text_rot(&txt, 180);
txt.vert = text_flip(txt.vert);
txt.hor = text_flip(txt.hor);
break;
default:
break;
}
if (matrix_is_mirrored(m)) {
if ((txt.rot % 180) == 0)
txt.hor = text_flip(txt.hor);
else
txt.vert = text_flip(txt.vert);
}
text_fig(&txt, COLOR_FIELD, LAYER_FIELD);
}
static void do_hsheet_text(const struct sch_obj *obj,
const struct sch_sheet *sheet)
{
char *s;
assert(sheet->sheet && sheet->file);
struct text sheet_txt = {
.size = sheet->sheet_dim,
.x = obj->x,
.y = obj->y,
.rot = 0,
.hor = text_min,
.vert = text_min,
};
if (asprintf(&s, "Sheet: %s", sheet->sheet)) {}
sheet_txt.s = s; /* work around "const" mismatch */
struct text file_txt = {
.size = sheet->file_dim,
.x = obj->x,
.y = obj->y,
.rot = 0,
.hor = text_min,
.vert = text_max,
};
if (asprintf(&s, "File: %s", sheet->file)) {}
file_txt.s = s; /* work around "const" mismatch */
if (sheet->rotated) {
sheet_txt.rot = file_txt.rot = 90;
sheet_txt.x -= HSHEET_FIELD_OFFSET;
sheet_txt.y += sheet->h;
file_txt.x += sheet->w + HSHEET_FIELD_OFFSET;
file_txt.y += sheet->h;
} else {
sheet_txt.y -= HSHEET_FIELD_OFFSET;
file_txt.y += sheet->h + HSHEET_FIELD_OFFSET;
}
text_fig(&sheet_txt, COLOR_HSHEET_SHEET, LAYER_HSHEET_FIELD);
text_fig(&file_txt, COLOR_HSHEET_FILE, LAYER_HSHEET_FIELD);
// free((void *) ctx->sheet);
// free((void *) ctx->file);
}
static void render_sheet(const struct sch_obj *obj,
const struct sch_sheet *sheet)
{
const struct sheet_field *field;
gfx_rect(obj->x, obj->y, obj->x + sheet->w, obj->y + sheet->h,
COLOR_HSHEET_BOX, COLOR_NONE, LAYER_HSHEET_BOX);
do_hsheet_text(obj, sheet);
for (field = sheet->fields; field; field = field->next)
dwg_hlabel(obj->x, obj->y, field->s,
field->side, field->dim,
field->shape);
// free(field->s)
}
void sch_render(const struct sch_ctx *ctx)
{
const struct sch_obj *obj;
for (obj = ctx->objs; obj; obj = obj->next)
switch (obj->type) {
case sch_obj_wire:
{
const struct sch_wire *wire = &obj->u.wire;
wire->fn(obj->x, obj->y, wire->ex, wire->ey);
}
break;
case sch_obj_junction:
dwg_junction(obj->x, obj->y);
break;
case sch_obj_noconn:
dwg_noconn(obj->x, obj->y);
break;
case sch_obj_text:
{
const struct sch_text *text = &obj->u.text;
text->fn(obj->x, obj->y, text->s, text->dir,
text->dim, text->shape);
}
break;
case sch_obj_comp:
{
const struct sch_comp *comp = &obj->u.comp;
const struct comp_field *field;
lib_exec(comp->comp, comp->unit, comp->m);
for (field = comp->fields; field;
field = field->next)
dump_field(field, comp->m);
}
break;
case sch_obj_sheet:
render_sheet(obj, &obj->u.sheet);
break;
}
}
/* ----- (Global) Labels --------------------------------------------------- */
@ -98,12 +249,6 @@ static void draw_text(int x, int y, const char *s, int dir, int dim,
/* ----- Component fields -------------------------------------------------- */
struct sch_field {
struct text txt;
struct sch_field *next;
};
void decode_alignment(struct text *txt, char hor, char vert)
{
switch (hor) {
@ -138,13 +283,14 @@ void decode_alignment(struct text *txt, char hor, char vert)
static bool parse_field(struct sch_ctx *ctx, const char *line)
{
struct sch_comp *comp = &ctx->obj.u.comp;
int n;
unsigned flags;
char hv, hor, vert, italic, bold;
struct sch_field *field;
struct comp_field *field;
struct text *txt;
field = alloc_type(struct sch_field);
field = alloc_type(struct comp_field);
txt = &field->txt;
if (sscanf(line, "F %d \"\" %c %d %d %u %u %c %c%c%c",
@ -158,12 +304,12 @@ static bool parse_field(struct sch_ctx *ctx, const char *line)
&hor, &vert, &italic, &bold) != 11)
return 0;
if (flags || !lib_field_visible(ctx->comp, n)) {
if (flags || !lib_field_visible(comp->comp, n)) {
free(field);
return 1;
}
if (n == 0 && ctx->comp->units > 1) {
if (n == 0 && comp->comp->units > 1) {
int len = strlen(txt->s);
char *s;
@ -172,17 +318,16 @@ static bool parse_field(struct sch_ctx *ctx, const char *line)
perror("realloc");
exit(1);
}
if (ctx->unit <= 26)
sprintf(s + len, "%c", 'A' + ctx->unit - 1);
if (comp->unit <= 26)
sprintf(s + len, "%c", 'A' + comp->unit - 1);
else
sprintf(s + len, "%c%c",
'A' + (ctx->unit - 1) / 26 - 1,
'A' + (ctx->unit - 1) % 26);
txt->s = s;
'A' + (comp->unit - 1) / 26 - 1,
'A' + (comp->unit - 1) % 26);
}
field->next = ctx->fields;
ctx->fields = field;
field->next = comp->fields;
comp->fields = field;
switch (hv) {
case 'H':
@ -203,59 +348,6 @@ static bool parse_field(struct sch_ctx *ctx, const char *line)
}
static void dump_field(const struct sch_field *field, int m[6])
{
struct text txt = field->txt;
int dx, dy;
dx = txt.x - m[0];
dy = txt.y - m[3];
txt.x = mx(dx, dy, m);
txt.y = my(dx, dy, m);
text_rot(&txt, matrix_to_angle(m));
switch (txt.rot) {
case 180:
text_rot(&txt, 180);
txt.hor = text_flip(txt.hor);
txt.vert = text_flip(txt.vert);
break;
case 270:
text_rot(&txt, 180);
txt.vert = text_flip(txt.vert);
txt.hor = text_flip(txt.hor);
break;
default:
break;
}
if (matrix_is_mirrored(m)) {
if ((txt.rot % 180) == 0)
txt.hor = text_flip(txt.hor);
else
txt.vert = text_flip(txt.vert);
}
text_fig(&txt, COLOR_FIELD, LAYER_FIELD);
}
static void dump_fields(struct sch_field *fields, int m[6])
{
while (fields) {
struct text *txt = &fields->txt;
struct sch_field *next = fields->next;
dump_field(fields, m);
text_free(txt);
free(fields);
fields = next;
}
}
/* ----- Sheet field ------------------------------------------------------- */
@ -299,29 +391,34 @@ static int decode_side(char side)
static bool parse_hsheet_field(struct sch_ctx *ctx, const char *line)
{
struct sch_sheet *sheet = &ctx->obj.u.sheet;
char *s;
int x, y;
char form, side;
unsigned n, dim;
struct sheet_field *field;
if (sscanf(line, "F%d \"%m[^\"]\" %u", &n, &s, &dim) == 3) {
switch (n) {
case 0:
ctx->sheet = s;
ctx->sheet_dim = dim;
sheet->sheet = s;
sheet->sheet_dim = dim;
return 1;
case 1:
ctx->file = s;
ctx->file_dim = dim;
sheet->file = s;
sheet->file_dim = dim;
return 1;
default:
assert(0);
}
}
field = alloc_type(struct sheet_field);
if (sscanf(line, "F%d \"%m[^\"]\" %c %c %d %d %u",
&n, &s, &form, &side, &x, &y, &dim) != 7)
&n, &field->s, &form, &side, &field->x, &field->y, &field->dim)
!= 7) {
free(field);
return 0;
}
assert(n >= 2);
if (side == 'B' || side == 'T') {
@ -339,71 +436,38 @@ static bool parse_hsheet_field(struct sch_ctx *ctx, const char *line)
* flips rotated sheets where the last imported pin is deleted
* back.
*/
ctx->rotated = 1;
sheet->rotated = 1;
}
dwg_hlabel(x, y, s, decode_side(side), dim, decode_form(form));
free(s);
field->shape = decode_form(form);
field->side = decode_side(side);
field->next = sheet->fields;
sheet->fields = field;
return 1;
}
static void do_hsheet_text(struct sch_ctx *ctx)
{
char *s;
assert(ctx->sheet && ctx->file);
struct text sheet_txt = {
.size = ctx->sheet_dim,
.x = ctx->x,
.y = ctx->y,
.rot = 0,
.hor = text_min,
.vert = text_min,
};
if (asprintf(&s, "Sheet: %s", ctx->sheet)) {}
sheet_txt.s = s; /* work around "const" mismatch */
struct text file_txt = {
.size = ctx->file_dim,
.x = ctx->x,
.y = ctx->y,
.rot = 0,
.hor = text_min,
.vert = text_max,
};
if (asprintf(&s, "File: %s", ctx->file)) {}
file_txt.s = s; /* work around "const" mismatch */
if (ctx->rotated) {
sheet_txt.rot = file_txt.rot = 90;
sheet_txt.x -= HSHEET_FIELD_OFFSET;
sheet_txt.y += ctx->h;
file_txt.x += ctx->w + HSHEET_FIELD_OFFSET;
file_txt.y += ctx->h;
} else {
sheet_txt.y -= HSHEET_FIELD_OFFSET;
file_txt.y += ctx->h + HSHEET_FIELD_OFFSET;
}
text_fig(&sheet_txt, COLOR_HSHEET_SHEET, LAYER_HSHEET_FIELD);
text_fig(&file_txt, COLOR_HSHEET_FILE, LAYER_HSHEET_FIELD);
free((void *) ctx->sheet);
free((void *) ctx->file);
}
/* ----- Schematics parser ------------------------------------------------- */
static void submit_obj(struct sch_ctx *ctx, enum sch_obj_type type)
{
struct sch_obj *obj;
obj = alloc_type(struct sch_obj);
*obj = ctx->obj;
obj->type = type;
obj->next = ctx->objs;
ctx->objs = obj;
}
bool sch_parse(struct sch_ctx *ctx, const char *line)
{
struct sch_obj *obj = &ctx->obj;
int n = 0;
int x, y, ex, ey;
char *s;
int m[4];
ctx->lineno++;
@ -411,57 +475,60 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
case sch_basic:
if (sscanf(line, "$Comp%n", &n) == 0 && n) {
ctx->state = sch_comp;
ctx->fields = NULL;
obj->u.comp.fields = NULL;
return 1;
}
if (sscanf(line, "$Sheet%n", &n) == 0 && n) {
ctx->state = sch_sheet;
ctx->sheet = NULL;
ctx->file = NULL;
ctx->rotated = 0;
obj->u.sheet.sheet = NULL;
obj->u.sheet.file = NULL;
obj->u.sheet.rotated = 0;
obj->u.sheet.fields = NULL;
return 1;
}
/* Text */
struct sch_text *text = &obj->u.text;
if (sscanf(line, "Text Notes %d %d %d %d",
&ctx->x, &ctx->y, &ctx->dir, &ctx->dim) == 4) {
&obj->x, &obj->y, &text->dir, &text->dim) == 4) {
ctx->state = sch_text;
ctx->text = draw_text;
obj->u.text.fn = draw_text;
return 1;
}
if (sscanf(line, "Text GLabel %d %d %d %d %ms",
&ctx->x, &ctx->y, &ctx->dir, &ctx->dim, &s) == 5) {
&obj->x, &obj->y, &text->dir, &text->dim, &s) == 5) {
ctx->state = sch_text;
ctx->shape = decode_shape(s);
ctx->text = dwg_glabel;
obj->u.text.fn = dwg_glabel;
obj->u.text.shape = decode_shape(s);
return 1;
}
if (sscanf(line, "Text HLabel %d %d %d %d %ms",
&ctx->x, &ctx->y, &ctx->dir, &ctx->dim, &s) == 5) {
&obj->x, &obj->y, &text->dir, &text->dim, &s) == 5) {
ctx->state = sch_text;
ctx->shape = decode_shape(s);
ctx->text = dwg_hlabel;
obj->u.text.fn = dwg_hlabel;
obj->u.text.shape = decode_shape(s);
return 1;
}
if (sscanf(line, "Text Label %d %d %d %d",
&ctx->x, &ctx->y, &ctx->dir, &ctx->dim) == 4) {
&obj->x, &obj->y, &text->dir, &text->dim) == 4) {
ctx->state = sch_text;
ctx->text = dwg_label;
obj->u.text.fn = dwg_label;
return 1;
}
/* Connection */
if (sscanf(line, "Connection ~ %d %d", &x, &y) == 2) {
dwg_junction(x, y);
if (sscanf(line, "Connection ~ %d %d", &obj->x, &obj->y) == 2) {
submit_obj(ctx, sch_obj_junction);
return 1;
}
/* NoConn */
if (sscanf(line, "NoConn ~ %d %d", &x, &y) == 2) {
dwg_noconn(x, y);
if (sscanf(line, "NoConn ~ %d %d", &obj->x, &obj->y) == 2) {
submit_obj(ctx, sch_obj_noconn);
return 1;
}
@ -469,17 +536,17 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
if (sscanf(line, "Wire Wire Line%n", &n) == 0 && n) {
ctx->state = sch_wire;
ctx->wire = dwg_wire;
obj->u.wire.fn = dwg_wire;
return 1;
}
if (sscanf(line, "Wire Bus Line%n", &n) == 0 && n) {
ctx->state = sch_wire;
ctx->wire = dwg_bus;
obj->u.wire.fn = dwg_bus;
return 1;
}
if (sscanf(line, "Wire Notes Line%n", &n) == 0 && n) {
ctx->state = sch_wire;
ctx->wire = dwg_line;
obj->u.wire.fn = dwg_line;
return 1;
}
@ -497,12 +564,12 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
*/
if (sscanf(line, "Entry Wire Line%n", &n) == 0 && n) {
ctx->state = sch_wire;
ctx->wire = dwg_wire;
obj->u.wire.fn = dwg_wire;
return 1;
}
if (sscanf(line, "Entry Bus Bus%n", &n) == 0 && n) {
ctx->state = sch_wire;
ctx->wire = dwg_bus;
obj->u.wire.fn = dwg_bus;
return 1;
}
@ -519,46 +586,42 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
case sch_comp:
if (sscanf(line, "$EndComp%n", &n) == 0 && n) {
ctx->state = sch_basic;
ctx->comp = NULL;
submit_obj(ctx, sch_obj_comp);
return 1;
}
if (sscanf(line, "L %ms", &s) == 1) {
ctx->comp = lib_find(s);
obj->u.comp.comp = lib_find(s);
free(s);
return 1;
}
if (sscanf(line, "U %u", &ctx->unit) == 1)
if (sscanf(line, "U %u", &obj->u.comp.unit) == 1)
return 1;
if (sscanf(line, "P %d %d", &ctx->x, &ctx->y) == 2)
if (sscanf(line, "P %d %d", &obj->x, &obj->y) == 2)
return 1;
if (parse_field(ctx, line))
return 1;
if (sscanf(line, "AR %n", &n) == 0 && n)
return 1; /* @@@ what is "AR" ? */
n = sscanf(line, " %d %d %d %d", m + 1, m + 2, m + 4, m + 5);
n = sscanf(line, " %d %d %d %d",
obj->u.comp.m + 1, obj->u.comp.m + 2,
obj->u.comp.m + 4, obj->u.comp.m + 5);
if (n == 3)
return 1;
if (n == 4) {
m[0] = ctx->x;
m[3] = ctx->y;
lib_exec(ctx->comp, ctx->unit, m);
dump_fields(ctx->fields, m);
obj->u.comp.m[0] = obj->x;
obj->u.comp.m[3] = obj->y;
return 1;
}
break;
case sch_sheet:
if (sscanf(line, "$EndSheet%n", &n) == 0 && n) {
ctx->state = sch_basic;
do_hsheet_text(ctx);
submit_obj(ctx, sch_obj_sheet);
return 1;
}
if (sscanf(line, "S %d %d %u %u",
&ctx->x, &ctx->y, &ctx->w, &ctx->h) == 4) {
gfx_rect(ctx->x, ctx->y,
ctx->x + ctx->w, ctx->y + ctx->h,
COLOR_HSHEET_BOX, COLOR_NONE, LAYER_HSHEET_BOX);
&obj->x, &obj->y, &obj->u.sheet.w, &obj->u.sheet.h) == 4)
return 1;
}
if (sscanf(line, "U %*x%n", &n) == 0 && n)
return 1;
if (parse_hsheet_field(ctx, line))
@ -566,7 +629,7 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
break;
case sch_text:
ctx->state = sch_basic;
if (ctx->text) {
{
const char *from;
char *to;
@ -582,16 +645,15 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
from += 2;
}
*to = 0;
ctx->text(ctx->x, ctx->y, s, ctx->dir, ctx->dim,
ctx->shape);
free(s);
obj->u.text.s = s;
submit_obj(ctx, sch_obj_text);
}
return 1;
case sch_wire:
if (sscanf(line, "%d %d %d %d", &x, &y, &ex, &ey) != 4)
if (sscanf(line, "%d %d %d %d", &obj->x, &obj->y,
&obj->u.wire.ex, &obj->u.wire.ey) != 4)
break;
if (ctx->wire)
ctx->wire(x, y, ex, ey);
submit_obj(ctx, sch_obj_wire);
ctx->state = sch_basic;
return 1;
default:
@ -605,5 +667,6 @@ bool sch_parse(struct sch_ctx *ctx, const char *line)
void sch_init(struct sch_ctx *ctx)
{
ctx->state = sch_descr;
ctx->objs = NULL;
ctx->lineno = 0;
}

View File

@ -30,36 +30,67 @@ enum sch_state {
sch_wire, /* wire */
};
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 *sheet;
unsigned sheet_dim;
const char *file;
unsigned file_dim;
bool rotated;
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 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;
struct sch_obj obj;
struct sch_obj *objs;
unsigned lineno;
};
@ -67,6 +98,7 @@ struct sch_ctx {
void decode_alignment(struct text *txt, char hor, char vert);
void sch_render(const struct sch_ctx *ctx);
bool sch_parse(struct sch_ctx *ctx, const char *line);
void sch_init(struct sch_ctx *ctx);