From b80f42c3c648c46be2a08ad2ef15e8456363d6d0 Mon Sep 17 00:00:00 2001
From: ellson <devnull@localhost>
Date: Tue, 21 Oct 2008 22:06:47 +0000
Subject: [PATCH] twopigen ==> cgraph

---
 lib/twopigen/circle.c    | 27 ++++++++++++++++-----------
 lib/twopigen/twopiinit.c | 17 ++++++++++++++---
 2 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/lib/twopigen/circle.c b/lib/twopigen/circle.c
index a48cf8407..382f68f40 100644
--- a/lib/twopigen/circle.c
+++ b/lib/twopigen/circle.c
@@ -27,11 +27,12 @@ static void setNStepsToLeaf(Agraph_t * g, Agnode_t * n, Agnode_t * prev)
 {
     Agnode_t *next;
     Agedge_t *ep;
+
     int nsteps = SLEAF(n) + 1;
 
     for (ep = agfstedge(g, n); ep; ep = agnxtedge(g, ep, n)) {
-	if ((next = ep->tail) == n)
-	    next = ep->head;
+	if ((next = agtail(ep)) == n)
+	    next = aghead(ep);
 
 	if (prev == next)
 	    continue;
@@ -53,8 +54,8 @@ static int isLeaf(Agraph_t * g, Agnode_t * n)
     Agnode_t *np;
 
     for (ep = agfstedge(g, n); ep; ep = agnxtedge(g, ep, n)) {
-	if ((np = ep->tail) == n)
-	    np = ep->head;
+	if ((np = agtail(ep)) == n)
+	    np = aghead(ep);
 	if (n == np)
 	    continue;		/* loop */
 	if (neighp) {
@@ -126,8 +127,8 @@ static void setNStepsToCenter(Agraph_t * g, Agnode_t * n, Agnode_t * prev)
     int nsteps = SCENTER(n) + 1;
 
     for (ep = agfstedge(g, n); ep; ep = agnxtedge(g, ep, n)) {
-	if ((next = ep->tail) == n)
-	    next = ep->head;
+	if ((next = agtail(ep)) == n)
+	    next = aghead(ep);
 
 	if (prev == next)
 	    continue;
@@ -195,8 +196,8 @@ static void setChildSubtreeSpans(Agraph_t * g, Agnode_t * n)
 
     ratio = SPAN(n) / STSIZE(n);
     for (ep = agfstedge(g, n); ep; ep = agnxtedge(g, ep, n)) {
-	if ((next = ep->tail) == n)
-	    next = ep->head;
+	if ((next = agtail(ep)) == n)
+	    next = aghead(ep);
 	if (SPARENT(next) != n)
 	    continue;		/* handles loops */
 
@@ -229,8 +230,8 @@ static void setChildPositions(Agraph_t * sg, Agnode_t * n)
 	theta = THETA(n) - SPAN(n) / 2;
 
     for (ep = agfstedge(sg, n); ep; ep = agnxtedge(sg, ep, n)) {
-	if ((next = ep->tail) == n)
-	    next = ep->head;
+	if ((next = agtail(ep)) == n)
+	    next = aghead(ep);
 	if (SPARENT(next) != n)
 	    continue;		/* handles loops */
 	if (THETA(next) != UNSET)
@@ -257,7 +258,11 @@ static void setAbsolutePos(Agraph_t * g)
     double xf;
     double hyp;
 
+#ifndef WITH_CGRAPH
     p = late_string(g, agfindattr(g->root, "ranksep"), NULL);
+#else /* WITH_CGRAPH */
+    p = late_string(g, agattr(g->root,AGRAPH, "ranksep",(char*)0), NULL);
+#endif /* WITH_CGRAPH */
     if (p) {
 	if (sscanf(p, "%lf", &xf) == 0)
 	    xf = DEF_RANKSEP;
@@ -320,7 +325,7 @@ void circleLayout(Agraph_t * sg, Agnode_t * center)
     if (!center)
 	center = findCenterNode(sg);
     if (Verbose)
-	fprintf(stderr, "root = %s\n", center->name);
+	fprintf(stderr, "root = %s\n", agnameof(center));
 
     /* maxNStepsToCenter = setParentNodes(sg,center); */
     setParentNodes(sg, center);
diff --git a/lib/twopigen/twopiinit.c b/lib/twopigen/twopiinit.c
index 76efdb1bf..cdae79fe0 100644
--- a/lib/twopigen/twopiinit.c
+++ b/lib/twopigen/twopiinit.c
@@ -27,8 +27,10 @@
 
 static void twopi_init_edge(edge_t * e)
 {
+#ifdef WITH_CGRAPH
+    agbindrec(e, "Agedgeinfo_t", sizeof(Agedgeinfo_t), TRUE);	//node custom data
+#endif /* WITH_CGRAPH */
     common_init_edge(e);
-
     ED_factor(e) = late_double(e, E_weight, 1.0, 0.0);
 }
 
@@ -41,9 +43,9 @@ static void twopi_init_node_edge(graph_t * g)
 
     GD_neato_nlist(g) = N_NEW(agnnodes(g) + 1, node_t *);
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
+	neato_init_node(n);
 	ND_alg(n) = alg + i;
 	GD_neato_nlist(g)[i++] = n;
-	neato_init_node(n);
     }
     for (n = agfstnode(g); n; n = agnxtnode(g, n)) {
 	for (e = agfstout(g, n); e; e = agnxtout(g, e)) {
@@ -70,7 +72,11 @@ void twopi_layout(Agraph_t * g)
     twopi_init_graph(g);
     s = agget(g, "root");
     if (s && (*s != '\0')) {
+#ifndef WITH_CGRAPH
 	ctr = agfindnode(g, s);
+#else /* WITH_CGRAPH */
+	ctr = agnode(g, s,0);
+#endif /* WITH_CGRAPH */
 	if (!ctr) {
 	    agerr(AGWARN, "specified root node \"%s\" was not found.", s);
 	    agerr(AGPREV, "Using default calculation for root node\n");
@@ -123,7 +129,12 @@ void twopi_layout(Agraph_t * g)
 static void twopi_cleanup_graph(graph_t * g)
 {
     free(GD_neato_nlist(g));
-    if (g != g->root) memset(&(g->u), 0, sizeof(Agraphinfo_t));
+    if (g != agroot(g))
+#ifndef WITH_CGRAPH
+	memset(&(g->u), 0, sizeof(Agraphinfo_t));
+#else /* WITH_CGRAPH */
+	agclean(g,AGRAPH,"Agraphinfo_t");
+#endif /* WITH_CGRAPH */
 }
 
 void twopi_cleanup(graph_t * g)
-- 
2.40.0