gvcproc.h

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/* $Id$ $Revision$ */
/* vim:set shiftwidth=4 ts=8: */

/*************************************************************************
 * 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/
 *************************************************************************/

/* This is the public header for the callers of libgvc */

#ifndef GVCPROC_H
#define GVCPROC_H

#define extern

/* these are intended to be private entry points - see gvc.h for the public ones */

/* configuration */

    extern char *gvconfig_libdir(GVC_t * gvc);
    extern void gvconfig(GVC_t * gvc, boolean rescan);
    extern char *gvhostname(void);

/* plugins */

    extern boolean gvplugin_install(GVC_t * gvc, api_t api,
                    const char *typestr, int quality, gvplugin_package_t *package,
                    gvplugin_installed_t * typeptr);
    extern gvplugin_available_t *gvplugin_load(GVC_t * gvc, api_t api, const char *type);
    extern gvplugin_library_t *gvplugin_library_load(GVC_t *gvc, char *path);
    extern api_t gvplugin_api(char *str);
    extern char * gvplugin_api_name(api_t api);
    extern void gvplugin_write_status(GVC_t * gvc);
    extern char *gvplugin_list(GVC_t * gvc, api_t api, const char *str);

    extern Agraph_t * gvplugin_graph(GVC_t * gvc);

/* job */

    extern void gvjobs_output_filename(GVC_t * gvc, const char *name);
    extern boolean gvjobs_output_langname(GVC_t * gvc, const char *name);
    extern GVJ_t *gvjobs_first(GVC_t * gvc);
    extern GVJ_t *gvjobs_next(GVC_t * gvc);
    extern void gvjobs_delete(GVC_t * gvc);

/* emit */
    extern void gvemit_graph(GVC_t * gvc, graph_t * g);

/* textlayout */

    extern int gvtextlayout_select(GVC_t * gvc);
    extern boolean gvtextlayout(GVC_t *gvc, textspan_t *span, char **fontpath);

/* loadimage */
    extern void gvloadimage(GVJ_t *job, usershape_t *us, boxf b, boolean filled, const char *target);
    
/* usershapes */
    extern point gvusershape_size_dpi(usershape_t *us, pointf dpi);
    extern point gvusershape_size(graph_t *g, char *name);
    extern usershape_t *gvusershape_find(char *name);

/* device */
    extern int gvdevice_initialize(GVJ_t * job);
    extern void gvdevice_format(GVJ_t * job);
    extern void gvdevice_finalize(GVJ_t * job);

/* render */

    extern pointf gvrender_ptf(GVJ_t *job, pointf p);
    extern pointf* gvrender_ptf_A(GVJ_t *job, pointf *af, pointf *AF, int n);

    extern int gvrender_begin_job(GVJ_t * job);
    extern void gvrender_end_job(GVJ_t * job);
    extern int gvrender_select(GVJ_t * job, const char *lang);
    extern int gvrender_features(GVJ_t * job);
    extern void gvrender_begin_graph(GVJ_t * job, graph_t * g);
    extern void gvrender_end_graph(GVJ_t * job);
    extern void gvrender_begin_page(GVJ_t * job);
    extern void gvrender_end_page(GVJ_t * job);
    extern void gvrender_begin_layer(GVJ_t * job);
    extern void gvrender_end_layer(GVJ_t * job);
    extern void gvrender_begin_cluster(GVJ_t * job, graph_t * sg);
    extern void gvrender_end_cluster(GVJ_t * job, graph_t *g);
    extern void gvrender_begin_nodes(GVJ_t * job);
    extern void gvrender_end_nodes(GVJ_t * job);
    extern void gvrender_begin_edges(GVJ_t * job);
    extern void gvrender_end_edges(GVJ_t * job);
    extern void gvrender_begin_node(GVJ_t * job, node_t * n);
    extern void gvrender_end_node(GVJ_t * job);
    extern void gvrender_begin_edge(GVJ_t * job, edge_t * e);
    extern void gvrender_end_edge(GVJ_t * job);
    extern void gvrender_begin_anchor(GVJ_t * job,
                char *href, char *tooltip, char *target, char *id);
    extern void gvrender_end_anchor(GVJ_t * job);
    extern void gvrender_begin_label(GVJ_t * job, label_type type);
    extern void gvrender_end_label(GVJ_t * job);
    extern void gvrender_textspan(GVJ_t * job, pointf p, textspan_t * span);
    extern void gvrender_set_pencolor(GVJ_t * job, char *name);
    extern void gvrender_set_penwidth(GVJ_t * job, double penwidth);
    extern void gvrender_set_fillcolor(GVJ_t * job, char *name);
    extern void gvrender_set_gradient_vals (GVJ_t * job, char *stopcolor, int angle, float frac);

    extern void gvrender_set_style(GVJ_t * job, char **s);
    extern void gvrender_ellipse(GVJ_t * job, pointf * AF, int n, int filled);
    extern void gvrender_polygon(GVJ_t* job, pointf* af, int n, int filled);
    extern void gvrender_box(GVJ_t * job, boxf BF, int filled);
    extern void gvrender_beziercurve(GVJ_t * job, pointf * AF, int n,
                        int arrow_at_start, int arrow_at_end, boolean filled);
    extern void gvrender_polyline(GVJ_t * job, pointf * AF, int n);
    extern void gvrender_comment(GVJ_t * job, char *str);
    extern void gvrender_usershape(GVJ_t * job, char *name, pointf * AF, int n, boolean filled, char *imagescale, char *imagepos);

/* layout */

    extern int gvlayout_select(GVC_t * gvc, const char *str);
    extern int gvFreeLayout(GVC_t * gvc, Agraph_t * g);
    extern int gvLayoutJobs(GVC_t * gvc, Agraph_t * g);

/* argvlist */
    extern gv_argvlist_t *gvNEWargvlist(void);
    extern void gv_argvlist_set_item(gv_argvlist_t *list, int index, char *item);
    extern void gv_argvlist_reset(gv_argvlist_t *list);
    extern void gv_argvlist_free(gv_argvlist_t *list);

#undef extern

#endif                          /* GVCPROC_H */