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/*
* libgvc.vapi
*
* Copyright (C) 2009 Martin Olsson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Martin Olsson <martin@minimum.se>
*/
[CCode (cprefix = "", lower_case_cprefix = "", cheader_filename = "graphviz/gvc.h")]
namespace Gvc {
/**
* Low-level initialization function for the graphviz library, used only if
* you need to explicitly control the sizes of graph, node and edge objects.
*
* Note: It's not necessary to call initlib() if you already called aginit()
* because aginit() makes a call to aginitlib() internally.
*/
[CCode (cname = "aginitlib", cheader_filename="gvc.h")]
public void initlib ( size_t graphinfo, size_t nodeinfo, size_t edgeinfo);
/**
* You must call aginit() before using the graphviz API. However, note that
* both gvContext() and gvParseArgs() will call aginit() internally if necessary.
* It's safe to call aginit() multiple times.
*
* For more information of Graphviz initialization, see documention at:
* http://graphviz.org/pdf/libguide.pdf
*/
[CCode (cname = "aginit")]
public void init ();
[CCode (cprefix = "")]
public enum GraphKind {
AGRAPH,
AGRAPHSTRICT,
AGDIGRAPH,
AGDIGRAPHSTRICT,
AGMETAGRAPH,
}
[CCode (cname = "agerrlevel_t", cheader_filename = "gvc.h", cprefix = "")]
public enum ErrorLevel {
AGWARN,
AGERR,
AGMAX,
AGPREV
}
[Compact]
[CCode (cname = "GVC_t", free_function = "gvFreeContext")]
public class Context {
[CCode (cname = "gvContext")]
public Context ();
[CCode (cname = "gvParseArgs")]
public int parse_args ( [CCode (array_length_pos = 0.9)] string[] argv );
[CCode (cname = "gvLayout")]
public int layout (Graph graph, [CCode (type = "char*")] string layout_engine);
[CCode (cname = "gvFreeLayout")]
public int free_layout (Graph graph);
[CCode (cname = "gvRender")]
public int render (Graph graph, [CCode (type = "char*")] string file_type, GLib.FileStream? file);
[CCode (cname = "gvRenderFilename")]
public int render_filename (Graph graph, [CCode (type = "char*")] string file_type, [CCode (type = "char*")] string filename);
[CCode (cname = "gvLayoutJobs")]
public int layout_jobs (Graph graph);
[CCode (cname = "gvRenderJobs")]
public int render_jobs (Graph graph);
[CCode (cname = "gvRenderData")]
public int render_data (Graph graph, [CCode (type = "char*")] string file_type, [CCode (type = "char**")] out uint8[] output_data);
}
[Compact]
[CCode (cname = "Agnode_t", ref_function = "", unref_function = "", free_function = "")]
public class Node {
[CCode (cname = "agget")]
public unowned string? get ([CCode (type = "char*")] string attribute_name);
[CCode (cname = "agset")]
public void set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value);
[CCode (cname = "agsafeset")]
public void safe_set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value, [CCode (type = "char*")] string? default_value);
}
[Compact]
[CCode (cname = "Agedge_t", ref_function = "", unref_function = "", free_function = "")]
public class Edge {
[CCode (cname = "agget")]
public unowned string? get ([CCode (type = "char*")] string attribute_name);
[CCode (cname = "agset")]
public int set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value);
[CCode (cname = "agsafeset")]
public int safe_set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value, [CCode (type = "char*")] string? default_value);
}
[Compact]
[CCode (cname = "Agraph_t", free_function = "agclose")]
public class Graph {
[CCode (cname = "agopen")]
public Graph ([CCode (type = "char*")] string graph_name, GraphKind kind);
[CCode (cname = "agread")]
public static Graph read (GLib.FileStream file);
[CCode (cname = "agmemread")]
public static Graph read_string (string str);
[CCode (cname = "agnode")]
public Node create_node ([CCode (type = "char*")] string node_name);
[CCode (cname = "agedge")]
public Edge create_edge (Node from, Node to);
[CCode (cname = "agfindnode")]
public Node? find_node ([CCode (type = "char*")] string node_name);
[CCode (cname = "agfstnode")]
public Node? get_first_node ();
[CCode (cname = "agnxtnode")]
public Node? get_next_node (Node node);
[CCode (cname = "agget")]
public unowned string? get ([CCode (type = "char*")] string attribute_name);
[CCode (cname = "agset")]
public int set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value);
[CCode (cname = "agsafeset")]
public int safe_set ([CCode (type = "char*")] string attribute_name, [CCode (type = "char*")] string attribute_value, [CCode (type = "char*")] string? default_value);
[CCode (cname = "AG_IS_DIRECTED")]
public bool is_directed ();
[CCode (cname = "AG_IS_STRICT")]
public bool is_strict ();
}
/**
* Graphviz has this concept of "referenced counted strings" to save memory.
* In addition, there is a special type of string in Graphviz called an "HTML string".
* More information about graphviz "HTML strings" can be found at:
* http://www.graphviz.org/doc/info/shapes.html#html
* And also near the end of page 9 in: http://graphviz.org/pdf/libguide.pdf
*/
[CCode (cname = "char", copy_function = "agdupstr_html", free_function = "agstrfree")]
public class HtmlString : string {
[CCode (cname = "agstrdup_html")]
public HtmlString (string markup);
}
[CCode(cprefix = "ag")]
namespace Error {
[CCode (cname = "agerrno")]
public static ErrorLevel errno;
[CCode (cname = "agerr")]
public static int error (ErrorLevel level, string fmt, ...);
[CCode (cname = "agerrors")]
public static int errors ();
[CCode (cname = "agseterr")]
public static void set_error (ErrorLevel err);
[CCode (cname = "aglasterr")]
public static string? last_error ();
[CCode (cname = "agerrorf")]
public static void errorf (string format, ...);
[CCode (cname = "agwarningf")]
void warningf (string fmt, ...);
}
}
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