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gen.lib.dotgen.class2__c Maven / Gradle / Ivy
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* This file is part of Smetana.
* Smetana is a partial translation of Graphviz/Dot sources from C to Java.
*
* (C) Copyright 2009-2022, Arnaud Roques
*
* This translation is distributed under the same Licence as the original C program:
*
*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors: See CVS logs. Details at http://www.graphviz.org/
*************************************************************************
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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package gen.lib.dotgen;
import static gen.lib.cgraph.edge__c.agfstout;
import static gen.lib.cgraph.edge__c.aghead;
import static gen.lib.cgraph.edge__c.agnxtout;
import static gen.lib.cgraph.edge__c.agtail;
import static gen.lib.cgraph.node__c.agfstnode;
import static gen.lib.cgraph.node__c.agnxtnode;
import static gen.lib.cgraph.obj__c.agroot;
import static gen.lib.common.utils__c.UF_find;
import static gen.lib.dotgen.cluster__c.build_skeleton;
import static gen.lib.dotgen.cluster__c.mark_clusters;
import static gen.lib.dotgen.dotinit__c.dot_root;
import static gen.lib.dotgen.fastgr__c.fast_node;
import static gen.lib.dotgen.fastgr__c.find_fast_edge;
import static gen.lib.dotgen.fastgr__c.flat_edge;
import static gen.lib.dotgen.fastgr__c.merge_oneway;
import static gen.lib.dotgen.fastgr__c.other_edge;
import static gen.lib.dotgen.fastgr__c.virtual_edge;
import static gen.lib.dotgen.fastgr__c.virtual_node;
import static gen.lib.dotgen.mincross__c.virtual_weight;
import static gen.lib.dotgen.position__c.ports_eq;
import static smetana.core.JUtils.EQ;
import static smetana.core.JUtils.NEQ;
import static smetana.core.Macro.CLUSTER;
import static smetana.core.Macro.CLUSTER_EDGE;
import static smetana.core.Macro.ED_conc_opp_flag;
import static smetana.core.Macro.ED_count;
import static smetana.core.Macro.ED_edge_type;
import static smetana.core.Macro.ED_label;
import static smetana.core.Macro.ED_label_ontop;
import static smetana.core.Macro.ED_to_virt;
import static smetana.core.Macro.ED_weight;
import static smetana.core.Macro.ED_xpenalty;
import static smetana.core.Macro.GD_clust;
import static smetana.core.Macro.GD_comp;
import static smetana.core.Macro.GD_flip;
import static smetana.core.Macro.GD_n_cluster;
import static smetana.core.Macro.GD_n_nodes;
import static smetana.core.Macro.GD_nlist;
import static smetana.core.Macro.GD_nodesep;
import static smetana.core.Macro.GD_rankleader;
import static smetana.core.Macro.IGNORED;
import static smetana.core.Macro.MAX;
import static smetana.core.Macro.N;
import static smetana.core.Macro.ND_clust;
import static smetana.core.Macro.ND_ht;
import static smetana.core.Macro.ND_label;
import static smetana.core.Macro.ND_lw;
import static smetana.core.Macro.ND_out;
import static smetana.core.Macro.ND_rank;
import static smetana.core.Macro.ND_ranktype;
import static smetana.core.Macro.ND_rw;
import static smetana.core.Macro.ND_weight_class;
import static smetana.core.Macro.agfindedge;
import static smetana.core.debug.SmetanaDebug.ENTERING;
import static smetana.core.debug.SmetanaDebug.LEAVING;
import gen.annotation.Difficult;
import gen.annotation.HasND_Rank;
import gen.annotation.Original;
import gen.annotation.Reviewed;
import gen.annotation.Todo;
import gen.annotation.Unused;
import h.ST_Agedge_s;
import h.ST_Agnode_s;
import h.ST_Agraph_s;
import h.ST_pointf;
import smetana.core.CArrayOfStar;
import smetana.core.Z;
/* classify edges for mincross/nodepos/splines, using given ranks */
public class class2__c {
//3 2zn7c6ulmwwzaibdxo127jf04
// static node_t* label_vnode(graph_t * g, edge_t * orig)
@Unused
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="label_vnode", key="2zn7c6ulmwwzaibdxo127jf04", definition="static node_t* label_vnode(graph_t * g, edge_t * orig)")
public static ST_Agnode_s label_vnode(ST_Agraph_s g, ST_Agedge_s orig) {
ENTERING("2zn7c6ulmwwzaibdxo127jf04","label_vnode");
try {
ST_Agnode_s v;
final ST_pointf dimen = new ST_pointf();
dimen.___(ED_label(orig).dimen);
v = virtual_node(g);
ND_label(v, ED_label(orig));
ND_lw(v, GD_nodesep(agroot(v)));
if (N(ED_label_ontop(orig))) {
if (GD_flip(agroot(g))) {
ND_ht(v, dimen.x);
ND_rw(v, dimen.y);
} else {
ND_ht(v, dimen.y);
ND_rw(v, dimen.x);
}
}
return v;
} finally {
LEAVING("2zn7c6ulmwwzaibdxo127jf04","label_vnode");
}
}
//3 49tji49jdm9uges7v8lf2j2rn
// static void incr_width(graph_t * g, node_t * v)
@Unused
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="incr_width", key="49tji49jdm9uges7v8lf2j2rn", definition="static void incr_width(graph_t * g, node_t * v)")
public static void incr_width(ST_Agraph_s g, ST_Agnode_s v) {
ENTERING("49tji49jdm9uges7v8lf2j2rn","incr_width");
try {
int width = GD_nodesep(g) / 2;
ND_lw(v, ND_lw(v) + width);
ND_rw(v, ND_rw(v) + width);
} finally {
LEAVING("49tji49jdm9uges7v8lf2j2rn","incr_width");
}
}
//3 xujihq6vep3ez275shtrbilo
// static node_t* plain_vnode(graph_t * g, edge_t * orig)
@Unused
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="plain_vnode", key="xujihq6vep3ez275shtrbilo", definition="static node_t* plain_vnode(graph_t * g, edge_t * orig)")
public static ST_Agnode_s plain_vnode(ST_Agraph_s g, ST_Agedge_s orig) {
ENTERING("xujihq6vep3ez275shtrbilo","plain_vnode");
try {
ST_Agnode_s v;
orig = orig;
v = virtual_node(g);
incr_width(g, v);
return v;
} finally {
LEAVING("xujihq6vep3ez275shtrbilo","plain_vnode");
}
}
@Reviewed(when = "15/11/2020")
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="leader_of", key="9fmfj1b2jik7skv6ms0657t8r", definition="static node_t* leader_of(graph_t * g, node_t * v)")
public static ST_Agnode_s leader_of(ST_Agraph_s g, ST_Agnode_s v) {
ENTERING("9fmfj1b2jik7skv6ms0657t8r","leader_of");
try {
ST_Agraph_s clust;
ST_Agnode_s rv;
if (ND_ranktype(v) != CLUSTER) {
/*assert(v == UF_find(v)); could be leaf, so comment out */
rv = UF_find(v);
} else {
clust = ND_clust(v);
rv = GD_rankleader(clust).get_(ND_rank(v));
}
return rv;
} finally {
LEAVING("9fmfj1b2jik7skv6ms0657t8r","leader_of");
}
}
//3 6sbvlvurvkodunw2qt1ug70c2
// static void make_chain(graph_t * g, node_t * from, node_t * to, edge_t * orig)
@Unused
@HasND_Rank
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="make_chain", key="6sbvlvurvkodunw2qt1ug70c2", definition="static void make_chain(graph_t * g, node_t * from, node_t * to, edge_t * orig)")
public static void make_chain(ST_Agraph_s g, ST_Agnode_s from, ST_Agnode_s to, ST_Agedge_s orig) {
ENTERING("6sbvlvurvkodunw2qt1ug70c2","make_chain");
try {
int r, label_rank;
ST_Agnode_s u, v=null;
ST_Agedge_s e;
u = from;
if (ED_label(orig)!=null)
label_rank = (ND_rank(from) + ND_rank(to)) / 2;
else
label_rank = -1;
//assert(ED_to_virt(orig) == NULL);
for (r = ND_rank(from) + 1; r <= ND_rank(to); r++) {
if (r < ND_rank(to)) {
if (r == label_rank)
v = label_vnode(g, orig);
else
v = plain_vnode(g, orig);
ND_rank(v, r);
} else
v = to;
e = virtual_edge(u, v, orig);
virtual_weight(e);
u = v;
}
// assert(ED_to_virt(orig) != NULL);
} finally {
LEAVING("6sbvlvurvkodunw2qt1ug70c2","make_chain");
}
}
@Reviewed(when = "15/11/2020")
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="interclrep", key="659ld5tcseo3l0hopxb3pf0vv", definition="static void interclrep(graph_t * g, edge_t * e)")
public static void interclrep(ST_Agraph_s g, ST_Agedge_s e) {
ENTERING("659ld5tcseo3l0hopxb3pf0vv","interclrep");
try {
ST_Agnode_s t, h;
ST_Agedge_s ve;
t = leader_of(g, agtail(e));
h = leader_of(g, aghead(e));
if (ND_rank(t) > ND_rank(h)) {
ST_Agnode_s t0 = t;
t = h;
h = t0;
}
if (NEQ(ND_clust(t), ND_clust(h))) {
if ((ve = find_fast_edge(t, h))!=null) {
merge_chain(g, e, ve, true);
return;
}
if (ND_rank(t) == ND_rank(h))
return;
make_chain(g, t, h, e);
/* mark as cluster edge */
for (ve = ED_to_virt(e); ve!=null && (ND_rank(aghead(ve)) <= ND_rank(h));
ve = (ST_Agedge_s) ND_out(aghead(ve)).list.get_(0))
ED_edge_type(ve, CLUSTER_EDGE);
}
/* else ignore intra-cluster edges at this point */
} finally {
LEAVING("659ld5tcseo3l0hopxb3pf0vv","interclrep");
}
}
@Reviewed(when = "15/11/2020")
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="is_cluster_edge", key="c0cx00ki1i1kx0bp84e7xjg8d", definition="static int is_cluster_edge(edge_t * e)")
public static boolean is_cluster_edge(ST_Agedge_s e) {
ENTERING("c0cx00ki1i1kx0bp84e7xjg8d","is_cluster_edge");
try {
return ((ND_ranktype(agtail(e)) == CLUSTER)
|| (ND_ranktype(aghead(e)) == CLUSTER));
} finally {
LEAVING("c0cx00ki1i1kx0bp84e7xjg8d","is_cluster_edge");
}
}
//3 c45973dtaighb3u0auuekcs1y
// void merge_chain(graph_t * g, edge_t * e, edge_t * f, int flag)
@Unused
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="merge_chain", key="c45973dtaighb3u0auuekcs1y", definition="void merge_chain(graph_t * g, edge_t * e, edge_t * f, int flag)")
public static void merge_chain(ST_Agraph_s g, ST_Agedge_s e, ST_Agedge_s f, boolean flag) {
ENTERING("c45973dtaighb3u0auuekcs1y","merge_chain");
try {
ST_Agedge_s rep;
int lastrank = MAX(ND_rank(agtail(e)), ND_rank(aghead(e)));
//assert(ED_to_virt(e) == NULL);
ED_to_virt(e, f);
rep = f;
do {
/* interclust multi-edges are not counted now */
if (flag)
ED_count(rep, ED_count(rep) + ED_count(e));
ED_xpenalty(rep, ED_xpenalty(rep) + ED_xpenalty(e));
ED_weight(rep, ED_weight(rep) + ED_weight(e));
if (ND_rank(aghead(rep)) == lastrank)
break;
incr_width(g, aghead(rep));
rep = (ST_Agedge_s) ND_out(aghead(rep)).list.get_(0);
} while (rep!=null);
} finally {
LEAVING("c45973dtaighb3u0auuekcs1y","merge_chain");
}
}
@Todo(what = "Check label equals ?")
@Reviewed(when = "15/11/2020")
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="mergeable", key="bg5r9wlego0d8pv0hr96zt45c", definition="int mergeable(edge_t * e, edge_t * f)")
public static boolean mergeable(ST_Agedge_s e, ST_Agedge_s f) {
ENTERING("bg5r9wlego0d8pv0hr96zt45c","mergeable");
try {
if (e!=null && f!=null && EQ(agtail(e), agtail(f)) && EQ(aghead(e), aghead(f)) &&
EQ(ED_label(e), ED_label(f)) && ports_eq(e, f))
return true;
return false;
} finally {
LEAVING("bg5r9wlego0d8pv0hr96zt45c","mergeable");
}
}
//3 d0bxlkysxucmww7t74u9krrgz
@Reviewed(when = "15/11/2020")
@Difficult
@Original(version="2.38.0", path="lib/dotgen/class2.c", name="class2", key="d0bxlkysxucmww7t74u9krrgz", definition="void class2(graph_t * g)")
public static void class2(ST_Agraph_s g) {
ENTERING("d0bxlkysxucmww7t74u9krrgz","class2");
try {
int c;
ST_Agnode_s n, t, h;
ST_Agedge_s e, prev, opp;
GD_nlist(g, null);
GD_n_nodes(g, 0); /* new */
mark_clusters(g);
for (c = 1; c <= GD_n_cluster(g); c++)
build_skeleton(g, GD_clust(g).get_(c));
for (n = agfstnode(g); n!=null; n = agnxtnode(g, n))
for (e = agfstout(g, n); e!=null; e = agnxtout(g, e)) {
if (ND_weight_class(aghead(e)) <= 2)
ND_weight_class(aghead(e), ND_weight_class(aghead(e)) + 1);
if (ND_weight_class(agtail(e)) <= 2)
ND_weight_class(agtail(e), ND_weight_class(agtail(e)) + 1);
}
for (n = agfstnode(g); n!=null; n = agnxtnode(g, n)) {
if ((ND_clust(n) == null) && (EQ(n, UF_find(n)))) {
fast_node(g, n);
GD_n_nodes(g, GD_n_nodes(g) + 1);
}
prev = null;
for (e = agfstout(g, n); e!=null; e = agnxtout(g, e)) {
/* already processed */
if (ED_to_virt(e)!=null) {
prev = e;
continue;
}
/* edges involving sub-clusters of g */
if (is_cluster_edge(e)) {
/* following is new cluster multi-edge code */
if (mergeable(prev, e)) {
if (ED_to_virt(prev)!=null) {
merge_chain(g, e, ED_to_virt(prev), false);
other_edge(e);
} else if (ND_rank(agtail(e)) == ND_rank(aghead(e))) {
merge_oneway(e, prev);
other_edge(e);
}
/* else is an intra-cluster edge */
continue;
}
interclrep(g, e);
prev = e;
continue;
}
/* merge multi-edges */
if (prev!=null && EQ(agtail(e), agtail(prev)) && EQ(aghead(e), aghead(prev))) {
if (ND_rank(agtail(e)) == ND_rank(aghead(e))) {
merge_oneway(e, prev);
other_edge(e);
continue;
}
if ((ED_label(e) == null) && (ED_label(prev) == null)
&& ports_eq(e, prev)) {
if (Z.z().Concentrate)
ED_edge_type(e, IGNORED);
else {
merge_chain(g, e, ED_to_virt(prev), true);
other_edge(e);
}
continue;
}
/* parallel edges with different labels fall through here */
}
/* self edges */
if (EQ(agtail(e), aghead(e))) {
other_edge(e);
prev = e;
continue;
}
t = UF_find(agtail(e));
h = UF_find(aghead(e));
/* non-leader leaf nodes */
if (NEQ(agtail(e), t) || NEQ(aghead(e), h)) {
/* FIX need to merge stuff */
continue;
}
/* flat edges */
if (ND_rank(agtail(e)) == ND_rank(aghead(e))) {
flat_edge(g, e);
prev = e;
continue;
}
/* forward edges */
if (ND_rank(aghead(e)) > ND_rank(agtail(e))) {
make_chain(g, agtail(e), aghead(e), e);
prev = e;
continue;
}
/* backward edges */
else {
/*other_edge(e); */
/* avoid when opp==e in undirected graph */
if ((opp = agfindedge(g, aghead(e), agtail(e)))!=null && NEQ(aghead(opp), aghead(e))) {
/* shadows a forward edge */
if (ED_to_virt(opp) == null)
make_chain(g, agtail(opp), aghead(opp), opp);
if ((ED_label(e) == null) && (ED_label(opp) == null)
&& ports_eq(e, opp)) {
if (Z.z().Concentrate) {
ED_edge_type(e, IGNORED);
ED_conc_opp_flag(opp, true);
} else { /* see above. this is getting out of hand */
other_edge(e);
merge_chain(g, e, ED_to_virt(opp), true);
}
continue;
}
}
make_chain(g, aghead(e), agtail(e), e);
prev = e;
}
}
}
/* since decompose() is not called on subgraphs */
if (NEQ(g, dot_root(g))) {
GD_comp(g).list = CArrayOfStar.REALLOC(1, GD_comp(g).list, ST_Agnode_s.class);
GD_comp(g).list.set_(0, GD_nlist(g));
}
} finally {
LEAVING("d0bxlkysxucmww7t74u9krrgz","class2");
}
}
}
