static cluster_data* cluster_map(graph_t *mastergraph, graph_t *g)
{
/* search meta-graph to find clusters */
graph_t *mg, *subg;
node_t *mm, *mn;
node_t *n;
edge_t *me;
/* array of arrays of node indices in each cluster */
int **cs,*cn;
int i,j,nclusters=0;
bool* assigned = N_NEW(agnnodes(g), bool);
cluster_data *cdata = GNEW(cluster_data);
cdata->ntoplevel = agnnodes(g);
mm = mastergraph->meta_node;
mg = mm->graph;
for (me = agfstout(mg, mm); me; me = agnxtout(mg, me)) {
mn = me->head;
subg = agusergraph(mn);
if (!strncmp(subg->name, "cluster", 7)) {
nclusters++;
}
}
cdata->nvars=0;
cdata->nclusters = nclusters;
cs = cdata->clusters = N_GNEW(nclusters,int*);
cn = cdata->clustersizes = N_GNEW(nclusters,int);
/* fprintf(stderr,"search %d clusters...\n",nclusters); */
for (me = agfstout(mg, mm); me; me = agnxtout(mg, me)) {
mn = me->head;
subg = agusergraph(mn);
/* clusters are processed by separate calls to ordered_edges */
if (!strncmp(subg->name, "cluster", 7)) {
int *c;
*cn = agnnodes(subg);
cdata->nvars += *cn;
c = *cs++ = N_GNEW(*cn++,int);
/* fprintf(stderr,"Cluster with %d nodes...\n",agnnodes(subg)); */
for (n = agfstnode(subg); n; n = agnxtnode(subg, n)) {
node_t *gn;
int ind = 0;
for (gn = agfstnode(g); gn; gn = agnxtnode(g, gn)) {
if(gn->id==n->id) break;
ind++;
}
/* fprintf(stderr," node=%s, id=%d, ind=%d\n",n->name,n->id,ind); */
*c++=ind;
assigned[ind]=true;
cdata->ntoplevel--;
}
}
}
/** Determine the current active state.
* Note that there might be multiple active states if there are sub-fsms. It will
* only consider the active state of the bottom-fsm.
* @return the current active state
*/
std::string
SkillGuiGraphDrawingArea::get_active_state(graph_t *graph)
{
if (! graph) {
return "";
}
// Loop through the nodes in the graph/subgraph and find the active node
for (node_t *n = agfstnode(graph); n; n = agnxtnode(graph, n)) {
const char *actattr = agget(n, (char *)"active");
if (actattr && (strcmp(actattr, "true") == 0) ) {
node_t *mn = agmetanode(graph);
graph_t *mg = mn->graph;
// Check to see if the node has an edge going into a subgraph
for (edge_t *me = agfstout(mg, mn); me; me = agnxtout(mg, me)) {
graph_t *subgraph = agusergraph(me->head);
for (edge_t *e = agfstout(graph, n); e; e = agnxtout(graph, e)) {
for (node_t *subnode = agfstnode(subgraph); subnode; subnode = agnxtnode(subgraph, subnode)) {
if (agnameof(subnode) == agnameof(e->head)) {
// The node goes into a subgraph, recursively find and return the active subnode name
return get_active_state(subgraph);
}
}
}
}
// The node has no subgraph, return the name of the active node
return agnameof(n);
}
}
return "";
}
static int
eval (Agraph_t* g, int root)
{
Agraph_t* mg;
Agedge_t* me;
Agnode_t* mn;
Agraph_t* subg;
if (root && !(GTYPE(g) & gtype)) return 1;
if ((flags & CL) && root)
cl_count (g);
emit (g, root);
if (recurse) {
n_indent++;
mg = g->meta_node->graph;
for (me = agfstout(mg,g->meta_node); me; me = agnxtout(mg,me)) {
mn = me->head;
subg = agusergraph(mn);
eval (subg, 0);
}
n_indent--;
}
return 0;
}
Agraph_t *agnxtsubg(Agraph_t *g, Agedge_t **lastedge)
{
Agedge_t *e;
Agraph_t *meta = g->meta_node->graph;
e = agnxtout(meta, *lastedge);
*lastedge = e;
if (!e)
return NULL;
return agusergraph(e->head);
}
static void add_graph_attr(Agraph_t * g, Agsym_t * attr)
{
Agnode_t *n;
if (g->meta_node) {
for (n = agfstnode(g->meta_node->graph); n;
n = agnxtnode(g->meta_node->graph, n))
obj_init_attr(agusergraph(n), attr);
} else
obj_init_attr(g, attr);
}
static void add_node_attr(Agraph_t * g, Agsym_t * attr)
{
Agnode_t *n;
Agproto_t *proto;
for (n = agfstnode(g); n; n = agnxtnode(g, n))
obj_init_attr(n, attr);
if (g->meta_node) {
for (n = agfstnode(g->meta_node->graph); n;
n = agnxtnode(g->meta_node->graph, n))
for (proto = agusergraph(n)->proto; proto; proto = proto->prev)
obj_init_attr(proto->n, attr);
} else
for (proto = g->proto; proto; proto = proto->prev)
obj_init_attr(proto->n, attr);
}
void rm(Agraph_t *g)
{
Agedge_t *e;
if (g->meta_node) {
for (e = agfstout(g->meta_node->graph, g->meta_node); e;
e = agnxtout(g->meta_node->graph, e)) {
rm(agusergraph(e->head));
}
if (g == g->root) {
agclose(g);
} else {
agdelete(g->meta_node->graph, g->meta_node);
}
} else {
fprintf(stderr, "subgraph has no meta_node\n");
}
}
Agraph_t *firstsupg(Agraph_t *g)
{
Agraph_t *mg;
Agnode_t *n;
Agedge_t *e;
if (!g)
return NULL;
n = g->meta_node;
if (!n)
return NULL;
mg = n->graph;
if (!mg)
return NULL;
e = agfstin(mg, n);
if (!e)
return NULL;
return agusergraph(e->tail);
}
static void cleanup_subgs(graph_t * g)
{
graph_t *mg;
edge_t *me;
node_t *mn;
graph_t *subg;
mg = g->meta_node->graph;
for (me = agfstout(mg, g->meta_node); me; me = agnxtout(mg, me)) {
mn = me->head;
subg = agusergraph(mn);
free_label(GD_label(subg));
if (GD_alg(subg)) {
free(PORTS(subg));
free(GD_alg(subg));
}
cleanup_subgs(subg);
}
}
static void
cl_count (Agraph_t* g)
{
Agraph_t* mg;
Agedge_t* me;
Agnode_t* mn;
Agraph_t* subg;
int sum = 0;
mg = g->meta_node->graph;
for (me = agfstout(mg,g->meta_node); me; me = agnxtout(mg,me)) {
mn = me->head;
subg = agusergraph(mn);
cl_count(subg);
sum += GD_cl_cnt(subg);
if (strncmp(subg->name,"cluster",7) == 0) sum++;
}
GD_cl_cnt(g) = sum;
}
Agraph_t *nextsupg(Agraph_t *g, Agraph_t *sg)
{
Agraph_t *mg;
Agnode_t *ng, *nsg;
Agedge_t *e;
if (!g || !sg)
return NULL;
ng = g->meta_node;
nsg = sg->meta_node;
if (!ng || !nsg)
return NULL;
mg = ng->graph;
if (!mg)
return NULL;
e = agfindedge(mg, nsg, ng);
if (!e)
return NULL;
e = agnxtin(mg, e);
if (!e)
return NULL;
return agusergraph(e->tail);
}
int rank_set_class(graph_t* g)
{
static char *name[] = {"same","min","source","max","sink",NULL};
static int class[] = {SAMERANK,MINRANK,SOURCERANK,MAXRANK,SINKRANK,0};
int val;
if (is_cluster(g)) return CLUSTER;
val = maptoken(agget(g,"rank"),name,class);
GD_set_type(g) = val;
return val;
}
/* Execute union commands for "same rank" subgraphs and clusters. */
void collapse_sets(graph_t* g)
{
int c;
graph_t *mg,*subg;
node_t *mn,*n;
edge_t *me;
mg = g->meta_node->graph;
for (me = agfstout(mg,g->meta_node); me; me = agnxtout(mg,me)) {
mn = me->head;
subg = agusergraph(mn);
c = rank_set_class(subg);
if (c) {
if ((c == CLUSTER) && CL_type == LOCAL) collapse_cluster(g,subg);
else collapse_rankset(g,subg,c);
}
/* mark nodes with ordered edges so their leaves are not collapsed */
if (agget(subg,"ordering"))
for (n = agfstnode(subg); n; n = agnxtnode(subg,n)) ND_order(n) = 1;
}
}
static void
write_subg(Agraph_t * g, FILE * fp, Agraph_t * par, int indent,
printdict_t * state)
{
Agraph_t *subg, *meta;
Agnode_t *n, *pn;
Agedge_t *e, *pe;
Dict_t *save_e, *save_n;
if (indent) {
tabover(fp, indent++);
if (dtsearch(state->subgleft, g->meta_node)) {
if (strncmp(g->name, "_anonymous", 10))
fprintf(fp, "subgraph %s {\n", agcanonical(g->name));
else
fprintf(fp, "{\n"); /* no name printed for anonymous subg */
write_diffattr(fp, indent, g, par, g->univ->globattr);
/* The root node and edge environment use the dictionaries,
* not the proto node or edge, so the next level down must
* record differences with the dictionaries.
*/
if (par == g->root) {
pn = NULL;
pe = NULL;
} else {
pn = par->proto->n;
pe = par->proto->e;
}
write_diffattr(fp, indent, g->proto->n, pn, g->univ->nodeattr);
write_diffattr(fp, indent, g->proto->e, pe, g->univ->edgeattr);
dtdelete(state->subgleft, g->meta_node);
} else {
fprintf(fp, "subgraph %s;\n", agcanonical(g->name));
return;
}
} else
write_diffattr(fp, ++indent, g, NULL, g->univ->globattr);
save_n = state->n_insubg;
save_e = state->e_insubg;
meta = g->meta_node->graph;
state->n_insubg = dtopen(&agNamedisc, Dttree);
state->e_insubg = dtopen(&agOutdisc, Dttree);
for (e = agfstout(meta, g->meta_node); e; e = agnxtout(meta, e)) {
subg = agusergraph(e->head);
write_subg(subg, fp, g, indent, state);
}
for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
if (dtsearch(state->nodesleft, n)) {
agwrnode(g, fp, n, TRUE, indent);
dtdelete(state->nodesleft, n);
} else {
if (dtsearch(state->n_insubg, n) == NULL) {
agwrnode(g, fp, n, FALSE, indent);
}
}
dtinsert(save_n, n);
}
dtdisc(g->outedges, &agEdgedisc, 0); /* sort by id */
for (e = (Agedge_t *) dtfirst(g->outedges); e;
e = (Agedge_t *) dtnext(g->outedges, e)) {
if (dtsearch(state->edgesleft, e)) {
tabover(fp, indent);
agwredge(g, fp, e, TRUE);
dtdelete(state->edgesleft, e);
} else {
if (dtsearch(state->e_insubg, e) == NULL) {
tabover(fp, indent);
agwredge(g, fp, e, FALSE);
}
}
dtinsert(save_e, e);
}
dtdisc(g->outedges, &agOutdisc, 0); /* sort by name */
dtclose(state->n_insubg);
state->n_insubg = save_n;
dtclose(state->e_insubg);
state->e_insubg = save_e;
if (indent > 1) {
tabover(fp, indent - 1);
fprintf(fp, "}\n");
}
}
/* find_blocks:
*/
static void find_blocks(Agraph_t * g, circ_state * state)
{
Agnode_t *n;
Agnode_t *root = NULL;
block_t *rootBlock = NULL;
blocklist_t ublks;
#ifdef USER_BLOCKS
graph_t *clust_subg;
graph_t *mg;
edge_t *me;
node_t *mm;
int isRoot;
#endif
initBlocklist(&ublks);
/* check to see if there is a node which is set to be the root
*/
if (state->rootname) {
root = agfindnode(g, state->rootname);
}
if (!root && state->N_root) {
for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
if (late_bool(ORIGN(n), state->N_root, 0)) {
root = n;
break;
}
}
}
#ifdef USER_BLOCKS
/* process clusters first */
/* by construction, all subgraphs are blocks and are non-empty */
mm = g->meta_node;
mg = mm->graph;
for (me = agfstout(mg, mm); me; me = agnxtout(mg, me)) {
block_t *block;
clust_subg = agusergraph(me->head);
isRoot = 0;
block = mkBlock(clust_subg);
/* block = makeBlock(g, state); */
for (n = agfstnode(clust_subg); n; n = agnxtnode(clust_subg, n)) {
if (!BCDONE(n)) { /* test not necessary if blocks disjoint */
SET_BCDONE(n);
BLOCK(n) = block;
if (n == root)
isRoot = 1;
}
}
if (isRoot) {
/* Assume blocks are disjoint, so don't check if rootBlock is
* already assigned.
*/
rootBlock = block;
insertBlock(&state->bl, block);
} else {
appendBlock(&state->bl, block);
}
}
ublks.first = state->bl.first;
ublks.last = state->bl.last;
#endif
if (!root)
root = agfstnode(g);
dfs(g, root, state, !rootBlock);
#ifdef USER_BLOCKS
/* If g has user-supplied blocks, it may be disconnected.
* We then fall into the following ugly loop.
* We are guaranteed !VISITED(n) and PARENT(n) has been
* set to a visited node.
*/
if (ublks.first) {
while (n = findUnvisited(&ublks)) {
dfs(g, n, state, 0);
}
}
#endif
}
/* could happen with an undirected edge */
char *temp;
temp = tp; tp = hp; hp = temp;
}
if (tp && tp[0]) {
agxset(e,TAILX,tp);
agstrfree(tp);
}
if (hp && hp[0]) {
agxset(e,HEADX,hp);
agstrfree(hp);
}
}
}
}
}
tailptr = SP->list;
while (tailptr) {
freeptr = tailptr;
tailptr = tailptr->link;
if (TAG_OF(freeptr->data.obj) == TAG_NODE)
free(freeptr);
}
if (G != SP->subg) abort();
agpopproto(G);
In_edge_stmt = SP->in_edge_stmt;
old_SP = SP;
SP = SP->link;
In_decl = FALSE;
free(old_SP);
Current_class = TAG_GRAPH;
}
#if 0 /* NOT USED */
static Agraph_t *parent_of(Agraph_t *g)
{
Agraph_t *rv;
rv = agusergraph(agfstin(g->meta_node->graph,g->meta_node)->tail);
return rv;
}
/* Execute union commands for "same rank" subgraphs and clusters. */
static void
collapse_sets(graph_t *rg, graph_t *g)
{
int c;
graph_t *subg;
#ifdef OBSOLETE
node_t *n;
#endif
#ifndef WITH_CGRAPH
graph_t *mg;
node_t *mn;
edge_t *me;
mg = g->meta_node->graph;
for (me = agfstout(mg, g->meta_node); me; me = agnxtout(mg, me)) {
mn = aghead(me);
subg = agusergraph(mn);
#else /* WITH_CGRAPH */
for (subg = agfstsubg(g); subg; subg = agnxtsubg(subg)) {
#endif /* WITH_CGRAPH */
c = rank_set_class(subg);
if (c) {
if ((c == CLUSTER) && CL_type == LOCAL)
collapse_cluster(rg, subg);
else
collapse_rankset(rg, subg, c);
}
else collapse_sets(rg, subg);
#ifdef OBSOLETE
Collapsing leaves is currently obsolete
/* mark nodes with ordered edges so their leaves are not collapsed */
if (agget(subg, "ordering"))
for (n = agfstnode(subg); n; n = agnxtnode(subg, n))
ND_order(n) = 1;
#endif
}
}
static void
find_clusters(graph_t * g)
{
graph_t *subg;
#ifndef WITH_CGRAPH
graph_t *mg;
node_t *mn;
edge_t *me;
mg = g->meta_node->graph;
for (me = agfstout(mg, g->meta_node); me; me = agnxtout(mg, me)) {
mn = me->head;
subg = agusergraph(mn);
#else /* WITH_CGRAPH */
for (subg = agfstsubg(agroot(g)); subg; subg = agnxtsubg(subg)) {
#endif /* WITH_CGRAPH */
if (GD_set_type(subg) == CLUSTER)
collapse_cluster(g, subg);
}
}
static void
set_minmax(graph_t * g)
{
int c;
GD_minrank(g) += ND_rank(GD_leader(g));
GD_maxrank(g) += ND_rank(GD_leader(g));
for (c = 1; c <= GD_n_cluster(g); c++)
set_minmax(GD_clust(g)[c]);
}