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/*************************************************************************
* 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
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Details at https://graphviz.org
*************************************************************************/
#pragma once
#include "render.h"
#include <circogen/block.h>
typedef struct {
blocklist_t bl;
int orderCount;
int blockCount;
int graphCopyCount; ///< how many cloned graphs have we created?
int spanningTreeCount; ///< how many spanning trees have we created?
attrsym_t *N_root;
char *rootname;
double min_dist;
} circ_state;
typedef struct {
Agnode_t *dnode;
} ndata;
/* Extra node data used for layout:
* Pass O: build derived graph
* Pass 1: construct blocks
* Pass 2: construct block tree
* Pass 3: layout block
* a: construct block skeleton
* b: construct skeleton spanning tree
* c: construct circular list of nodes
* Pass 4: connect blocks
*/
typedef struct {
union { /* Pointer to node/cluster in original graph */
Agraph_t *g;
Agnode_t *np;
} orig;
int flags;
node_t *parent; /* parent in block-cutpoint traversal (1,2,4) */
block_t *block; /* Block containing node (1,2,3,4) */
union {
struct { /* Pass 1 */
node_t *next; /* used for stack */
int val;
int low_val;
} bc;
node_t *clone; /* Cloned node (3a) */
struct { /* Spanning tree and longest path (3b) */
node_t *tparent; /* Parent in tree */
node_t *first; /* Leaf on longest path from node */
node_t *second; /* Leaf on 2nd longest path from node */
int fdist; /* Length of longest path from node */
int sdist; /* Length of 2nd longest path from node */
} t;
struct {
int pos; /* Index of node in block circle (3c,4) */
double psi; /* Offset angle of children (4) */
} f;
} u;
} cdata;
typedef struct {
int order;
} edata;
#define NDATA(n) ((ndata*)(ND_alg(n)))
#define DNODE(n) (NDATA(n)->dnode)
#define EDGEDATA(e) ((edata*)(ED_alg(e)))
#define EDGEORDER(e) (EDGEDATA(e)->order)
#define DATA(n) ((cdata*)(ND_alg(n)))
#define ORIGG(n) (DATA(n)->orig.g)
#define ORIGN(n) (DATA(n)->orig.np)
#define FLAGS(n) (DATA(n)->flags)
#define PARENT(n) (DATA(n)->parent)
#define BLOCK(n) (DATA(n)->block)
#define NEXT(n) (DATA(n)->u.bc.next)
#define VAL(n) (DATA(n)->u.bc.val)
#define LOWVAL(n) (DATA(n)->u.bc.low_val)
#define CLONE(n) (DATA(n)->u.clone)
#define TPARENT(n) (DATA(n)->u.t.tparent)
#define LEAFONE(n) (DATA(n)->u.t.first)
#define LEAFTWO(n) (DATA(n)->u.t.second)
#define DISTONE(n) (DATA(n)->u.t.fdist)
#define DISTTWO(n) (DATA(n)->u.t.sdist)
#define POSITION(n) (DATA(n)->u.f.pos)
#define PSI(n) (DATA(n)->u.f.psi)
#define VISITED_F (1 << 0)
#define ONSTACK_F (1 << 2)
#define PARENT_F (1 << 3)
#define PATH_F (1 << 4)
#define NEIGHBOR_F (1 << 5)
#define VISITED(n) (FLAGS(n)&VISITED_F)
#define ONSTACK(n) (FLAGS(n)&ONSTACK_F)
#define ISPARENT(n) (FLAGS(n)&PARENT_F)
#define ONPATH(n) (FLAGS(n)&PATH_F)
#define NEIGHBOR(n) (FLAGS(n)&NEIGHBOR_F)
#define SET_VISITED(n) (FLAGS(n) |= VISITED_F)
#define SET_ONSTACK(n) (FLAGS(n) |= ONSTACK_F)
#define SET_PARENT(n) (FLAGS(n) |= PARENT_F)
#define SET_ONPATH(n) (FLAGS(n) |= PATH_F)
#define SET_NEIGHBOR(n) (FLAGS(n) |= NEIGHBOR_F)
#define UNSET_VISITED(n) (FLAGS(n) &= ~VISITED_F)
#define UNSET_ONSTACK(n) (FLAGS(n) &= ~ONSTACK_F)
#define UNSET_NEIGHBOR(n) (FLAGS(n) &= ~NEIGHBOR_F)
#define DEGREE(n) (ND_order(n))
#include <circogen/circo.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef DEBUG
extern void prData(Agnode_t * n, int pass);
#endif
void circularLayout(Agraph_t *sg, Agraph_t *rg, int *blockCount);
#ifdef __cplusplus
}
#endif
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