/* copyAttr:
* Copy attributes from src to tgt. Overrides currently
* defined values.
* FIX: we should probably use the default value of the source
* graph when initializing the attribute, rather than "".
* NOTE: We do not assume src and tgt have the same kind.
*/
int copyAttr(Agobj_t * src, Agobj_t * tgt)
{
Agraph_t *srcg;
Agraph_t *tgtg;
Agsym_t *sym = 0;
Agsym_t *tsym = 0;
int skind = AGTYPE(src);
int tkind = AGTYPE(tgt);
char* val;
srcg = agraphof(src);
tgtg = agraphof(tgt);
while ((sym = agnxtattr(srcg, skind, sym))) {
tsym = agattrsym(tgt, sym->name);
if (!tsym)
tsym = agattr(tgtg, tkind, sym->name, sym->defval);
val = agxget(src, sym);
if (aghtmlstr (val)) {
val = agstrdup_html (tgtg, val);
agxset(tgt, tsym, val);
agstrfree (tgtg, val);
}
else
agxset(tgt, tsym, val);
}
return 0;
}
static void post(Agraph_t * g)
{
Agnode_t *v;
Agnode_t *prev;
char buf[256];
char dflt[256];
Agsym_t *sym;
Agsym_t *psym;
double dist, oldmax;
double maxdist = 0.0; /* maximum "finite" distance */
sym = agattr(g, AGNODE, "dist", "");
if (doPath)
psym = agattr(g, AGNODE, "prev", "");
if (setall)
sprintf(dflt, "%.3lf", HUGE);
for (v = agfstnode(g); v; v = agnxtnode(g, v)) {
dist = getdist(v);
if (dist) {
dist--;
sprintf(buf, "%.3lf", dist);
agxset(v, sym, buf);
if (doPath && (prev = getprev(v)))
agxset(v, psym, agnameof(prev));
if (maxdist < dist)
maxdist = dist;
} else if (setall)
agxset(v, sym, dflt);
}
sym = agattrsym(g, "maxdist");
if (sym) {
if (!setall) {
/* if we are preserving distances in other components,
* check previous value of maxdist.
*/
oldmax = atof(agxget(g, sym));
if (oldmax > maxdist)
maxdist = oldmax;
}
sprintf(buf, "%.3lf", maxdist);
agxset(g, sym, buf);
} else {
sprintf(buf, "%.3lf", maxdist);
agattr(g, AGRAPH, "maxdist", buf);
}
agclean(g, AGNODE, "dijkstra");
agclean(g, AGEDGE, "dijkstra");
}
/* copyAttr;
* Copy attributes from src to tgt. Overrides currently
* defined values.
* FIX: we should probably use the default value of the source
* graph when initializing the attribute, rather than "".
* NOTE: We do not assume src and tgt have the same kind.
*/
int copyAttr(Agobj_t * src, Agobj_t * tgt)
{
Agraph_t *srcg;
Agraph_t *tgtg;
Agsym_t *sym = 0;
Agsym_t *tsym = 0;
int skind = AGTYPE(src);
int tkind = AGTYPE(tgt);
srcg = agraphof(src);
tgtg = agraphof(tgt);
while ((sym = agnxtattr(srcg, skind, sym))) {
tsym = agattrsym(tgt, sym->name);
if (!tsym)
tsym = agattr(tgtg, tkind, sym->name, "");
agxset(tgt, tsym, agxget(src, sym));
}
return 0;
}
