lib/common/render.h

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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
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: See CVS logs. Details at http://www.graphviz.org/
 *************************************************************************/

#ifndef GV_RENDER_H
#define GV_RENDER_H

#ifdef __cplusplus
extern "C" {
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif

#include "types.h"
#include "macros.h"
#include "const.h"
#include "globals.h"
#include "memory.h"
#include "colorprocs.h"         /* must collow color.h (in types.h) */
#include "geomprocs.h"          /* must follow geom.h (in types.h) */
#include "agxbuf.h"
#include "utils.h"              /* must follow types.h and agxbuf.h */
#include "gvplugin.h"           /* must follow gvcext.h (in types.h) */
#include "gvcjob.h"             /* must follow gvcext.h (in types.h) */
#include "gvcint.h"             /* must follow gvcext.h (in types.h) */
#include "gvcproc.h"            /* must follow gvcext.h (in types.h) */

    typedef struct epsf_s {
        int macro_id;
        point offset;
    } epsf_t;

    typedef void (*nodesizefn_t) (Agnode_t *, boolean);
#ifdef GVDLL
#define extern __declspec(dllexport)
#else
#define extern
#endif

/*visual studio*/
#ifdef WIN32_DLL
#ifndef GVC_EXPORTS
#define extern __declspec(dllimport)
#endif
#endif
/*end visual studio*/

        extern void add_box(path *, boxf);
    extern void arrow_flags(Agedge_t * e, int *sflag, int *eflag);
    extern boxf arrow_bb(pointf p, pointf u, double arrowsize, int flag);
    extern void arrow_gen(GVJ_t * job, emit_state_t emit_state, pointf p, pointf u,
                          double arrowsize, double penwidth, int flag);
    extern double arrow_length(edge_t * e, int flag);
    extern int arrowEndClip(edge_t*, pointf*, int, int , bezier*, int eflag);
    extern int arrowStartClip(edge_t*, pointf* ps, int, int, bezier*, int sflag);
    extern void arrowOrthoClip(edge_t*, pointf* ps, int, int, bezier*, int sflag, int eflag);
    extern void beginpath(path *, Agedge_t *, int, pathend_t *, boolean);
    extern void bezier_clip(inside_t * inside_context,
                            boolean(*insidefn) (inside_t * inside_context,
                                                pointf p), pointf * sp,
                            boolean left_inside);
    extern shape_desc *bind_shape(char *name, node_t *);
    extern void makeStraightEdge(graph_t * g, edge_t * e, int edgetype, splineInfo * info);
    extern void clip_and_install(edge_t * fe, node_t * hn,
        pointf * ps, int pn, splineInfo * info);
    extern char* charsetToStr (int c);
    extern pointf coord(node_t * n);
    extern void do_graph_label(graph_t * sg);
    extern void graph_init(graph_t * g, boolean use_rankdir);
    extern void graph_cleanup(graph_t * g);
    extern int dotneato_args_initialize(GVC_t * gvc, int, char **);
    extern int dotneato_usage(int);
    extern void dotneato_postprocess(Agraph_t *);
    extern void gv_postprocess(Agraph_t *, int);
    extern void dotneato_set_margins(GVC_t * gvc, Agraph_t *);
    extern void dotneato_write(GVC_t * gvc, graph_t *g);
    extern void dotneato_write_one(GVC_t * gvc, graph_t *g);
    extern Ppolyline_t* ellipticWedge (pointf ctr, double major, double minor, double angle0, double angle1);
    extern void emit_clusters(GVJ_t * job, Agraph_t * g, int flags);
    extern char* getObjId (GVJ_t* job, void* obj, agxbuf* xb);
    /* extern void emit_begin_edge(GVJ_t * job, edge_t * e, char**); */
    /* extern void emit_end_edge(GVJ_t * job); */
    extern void emit_graph(GVJ_t * job, graph_t * g);
    extern void emit_label(GVJ_t * job, emit_state_t emit_state, textlabel_t *);
    extern int emit_once(char *message);
    extern void emit_jobs_eof(GVC_t * gvc);
    extern void emit_map_rect(GVJ_t *job, boxf b);
    extern void enqueue_neighbors(nodequeue *, Agnode_t *, int);
    extern void endpath(path *, Agedge_t *, int, pathend_t *, boolean);
    extern void epsf_init(node_t * n);
    extern void epsf_free(node_t * n);
    extern shape_desc *find_user_shape(const char *);
    extern void free_line(textpara_t *);
    extern void free_label(textlabel_t *);
    extern void free_textpara(textpara_t * tl, int);
    extern void getdouble(graph_t * g, char *name, double *result);
    extern splines *getsplinepoints(edge_t * e);
    extern void gv_fixLocale (int set);
    extern void gv_free_splines(edge_t * e);
    extern void gv_cleanup_edge(Agedge_t * e);
    extern void gv_cleanup_node(Agnode_t * n);
    extern void* init_xdot (Agraph_t* g);
    extern int initMapData (GVJ_t*, char*, char*, char*, char*, char*, void*);
    extern boolean isPolygon(node_t *);
    extern void makeSelfEdge(path * P, edge_t * edges[], int ind, int cnt,
        double sizex, double sizey, splineInfo * sinfo);
    extern textlabel_t *make_label(void *obj, char *str, int kind, double fontsize, char *fontname, char *fontcolor);
    extern bezier *new_spline(edge_t * e, int sz);
    extern char **parse_style(char *s);
    extern void place_graph_label(Agraph_t *);
    extern int place_portlabel(edge_t * e, boolean head_p);
    extern void makePortLabels(edge_t * e);
    extern pointf edgeMidpoint(graph_t* g, edge_t * e);
    extern void addEdgeLabels(graph_t* g, edge_t * e, pointf rp, pointf rq);
    extern void pop_obj_state(GVJ_t *job);
    extern obj_state_t* push_obj_state(GVJ_t *job);
    extern int rank(graph_t * g, int balance, int maxiter);
    extern port resolvePort(node_t*  n, node_t* other, port* oldport);
    extern void resolvePorts (edge_t* e);
    extern void round_corners(GVJ_t * job, pointf * AF, int sides, int style, int filled);
    extern int routesplinesinit(void);
    extern pointf *routesplines(path *, int *);
    extern void routesplinesterm(void);
    extern pointf* simpleSplineRoute (pointf, pointf, Ppoly_t, int*, int);
    extern pointf *routepolylines(path* pp, int* npoints);
    extern int selfRightSpace (edge_t* e);
    extern void setup_graph(GVC_t * gvc, graph_t * g);
    extern shape_kind shapeOf(node_t *);
    extern void shape_clip(node_t * n, pointf curve[4]);
    extern void make_simple_label (graph_t* g, textlabel_t* rv);
    extern int stripedBox (GVJ_t * job, pointf* AF, char* clrs, int rotate);
    extern stroke_t* taper (bezier*, double (*radfunc_t)(double,double,double), double initwid, int linejoin, int linecap);
    extern stroke_t* taper0 (bezier* bez, double initwid);
    extern pointf textsize(graph_t *g, textpara_t * para, char *fontname, double fontsize);
    extern void translate_bb(Agraph_t *, int);
    extern int wedgedEllipse (GVJ_t* job, pointf * pf, char* clrs);
    extern void update_bb_bz(boxf *bb, pointf *cp);
    extern void write_attributed_dot(graph_t *g, FILE *f);
    extern void write_canonical_dot(graph_t *g, FILE *f);
    extern boxf xdotBB (graph_t* g);
    extern char *findAttrColor(void *obj, attrsym_t *colorattr, char *dflt);

#undef extern

#ifdef __cplusplus
}
#endif

#endif