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eeshow/kicad/delta.c: merge adjacent wires going in the same direction

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This commit is contained in:
Werner Almesberger 2016-08-20 23:14:07 -03:00
parent 54afbf5b68
commit ab888e7bdc
1 changed files with 71 additions and 0 deletions
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71
eeshow/kicad/delta.c
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@ -368,6 +368,74 @@ static void init_res(struct sheet *res)
}
static int min(int a, int b)
{
return a < b ? a : b;
}
static int max(int a, int b)
{
return a > b ? a : b;
}
static void merge_coord(int *sa, int *ea, int sb, int eb)
{
int tmp;
tmp = min(min(*sa, *ea), min(sb, eb));
*ea = max(max(*sa, *ea), max(sb, eb));
*sa = tmp;
}
static bool merge_wire(struct sch_obj *a, const struct sch_obj *b)
{
struct sch_wire *wa = &a->u.wire;
const struct sch_wire *wb = &b->u.wire;
if (a->x == b->x && a->x == wa->ex && a->x == wb->ex &&
(a->y == b->y || a->y == wb->ey || wa->ey == b->y ||
wa->ey == wb->ey)) {
merge_coord(&a->y, &wa->ey, b->y, wb->ey);
return 1;
}
if (a->y == b->y && a->y == wa->ey && a->y == wb->ey &&
(a->x == b->x || a->x == wb->ex || wa->ex == b->x ||
wa->ex == wb->ex)) {
merge_coord(&a->x, &wa->ex, b->x, wb->ex);
return 1;
}
return 0;
}
static void merge_wires(struct sch_obj *a)
{
struct sch_obj **b, **next;
for (; a; a = a->next) {
if (a->type != sch_obj_wire)
continue;
for (b = &a->next; *b; b = next) {
next = &(*b)->next;
if ((*b)->type != sch_obj_wire)
continue;
if (a->u.wire.fn != (*b)->u.wire.fn)
return;
if (merge_wire(a, *b)) {
struct sch_obj *tmp = *b;
*b = *next;
free(tmp);
next = b;
}
}
}
}
void delta(const struct sheet *a, const struct sheet *b,
struct sheet *res_a, struct sheet *res_b, struct sheet *res_ab)
{
@ -389,6 +457,9 @@ void delta(const struct sheet *a, const struct sheet *b,
objs_a = objs_clone(a->objs);
objs_b = objs_clone(b->objs);
merge_wires(objs_a);
merge_wires(objs_b);
while (objs_a) {
next_a = objs_a->next;
for (obj_b = &objs_b; *obj_b; obj_b = &(*obj_b)->next)