bNodeSocket *node_group_add_extern_socket(bNodeTree *UNUSED(ntree), ListBase *lb, int in_out, bNodeSocket *gsock)
{
bNodeSocket *sock;
if (gsock->flag & SOCK_INTERNAL)
return NULL;
sock= MEM_callocN(sizeof(bNodeSocket), "sock");
/* make a copy of the group socket */
*sock = *gsock;
sock->link = NULL;
sock->next = sock->prev = NULL;
sock->new_sock = NULL;
/* group sockets are dynamically added */
sock->flag |= SOCK_DYNAMIC;
sock->own_index = gsock->own_index;
sock->groupsock = gsock;
sock->limit = (in_out==SOCK_IN ? 1 : 0xFFF);
sock->default_value = node_socket_make_default_value(sock->type);
node_socket_copy_default_value(sock->type, sock->default_value, gsock->default_value);
if (lb)
BLI_addtail(lb, sock);
return sock;
}
/* add new node connected to this socket, or replace an existing one */
static void node_socket_add_replace(Main *bmain, bNodeTree *ntree, bNode *node_to, bNodeSocket *sock_to, bNodeTemplate *ntemp, int sock_num)
{
bNode *node_from;
bNodeSocket *sock_from;
bNode *node_prev = NULL;
/* unlink existing node */
if (sock_to->link) {
node_prev = sock_to->link->fromnode;
nodeRemLink(ntree, sock_to->link);
}
/* find existing node that we can use */
for (node_from=ntree->nodes.first; node_from; node_from=node_from->next)
if (node_from->type == ntemp->type)
break;
if (node_from)
if (!(node_from->inputs.first == NULL && !(node_from->typeinfo->flag & NODE_OPTIONS)))
node_from = NULL;
if (node_prev && node_prev->type == ntemp->type &&
(ntemp->type != NODE_GROUP || node_prev->id == &ntemp->ngroup->id)) {
/* keep the previous node if it's the same type */
node_from = node_prev;
}
else if (!node_from) {
node_from= nodeAddNode(ntree, ntemp);
node_from->locx = node_to->locx - (node_from->typeinfo->width + 50);
node_from->locy = node_to->locy;
if (node_from->id)
id_us_plus(node_from->id);
}
nodeSetActive(ntree, node_from);
/* add link */
sock_from = BLI_findlink(&node_from->outputs, sock_num);
nodeAddLink(ntree, node_from, sock_from, node_to, sock_to);
/* copy input sockets from previous node */
if (node_prev && node_from != node_prev) {
bNodeSocket *sock_prev, *sock_from;
for (sock_prev=node_prev->inputs.first; sock_prev; sock_prev=sock_prev->next) {
for (sock_from=node_from->inputs.first; sock_from; sock_from=sock_from->next) {
if (nodeCountSocketLinks(ntree, sock_from) >= sock_from->limit)
continue;
if (strcmp(sock_prev->name, sock_from->name) == 0 && sock_prev->type == sock_from->type) {
bNodeLink *link = sock_prev->link;
if (link && link->fromnode) {
nodeAddLink(ntree, link->fromnode, link->fromsock, node_from, sock_from);
nodeRemLink(ntree, link);
}
node_socket_free_default_value(sock_from->type, sock_from->default_value);
sock_from->default_value = node_socket_make_default_value(sock_from->type);
node_socket_copy_default_value(sock_from->type, sock_from->default_value, sock_prev->default_value);
}
}
}
/* also preserve mapping for texture nodes */
if (node_from->typeinfo->nclass == NODE_CLASS_TEXTURE &&
node_prev->typeinfo->nclass == NODE_CLASS_TEXTURE)
{
memcpy(node_from->storage, node_prev->storage, sizeof(NodeTexBase));
}
/* remove node */
node_remove_linked(ntree, node_prev);
}
nodeUpdate(ntree, node_from);
nodeUpdate(ntree, node_to);
ntreeUpdateTree(ntree);
ED_node_generic_update(bmain, ntree, node_to);
}