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/* chart.vala
*
* Copyright (C) 2008 Florian Brosch
*
* 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:
* Florian Brosch <flo.brosch@gmail.com>
*/
[CCode (cname = "valadoc_compat_gvc_init")]
extern void valadoc_gvc_init ();
public class Valadoc.Charts.Chart : Api.Visitor {
protected Gvc.Context context;
protected Gvc.Graph graph;
protected Factory factory;
static construct {
valadoc_gvc_init ();
}
public Chart (Factory factory, Api.Node node) {
graph = factory.create_graph (node);
this.factory = factory;
node.accept (this);
}
public void save (string file_name, string file_type = "png") {
if (context == null) {
context = factory.create_context (graph);
}
context.render_filename (graph, file_type, file_name);
}
public void write (GLib.FileStream file, string file_type) {
if (context == null) {
context = factory.create_context (graph);
}
context.render (graph, file_type, file);
}
public uint8[]? write_buffer (string file_type) {
if (context == null) {
context = factory.create_context (graph);
}
uint8[]? data;
/* This will return null in data if it fails. */
context.render_data (graph, file_type, out data);
return data;
}
~Chart () {
if (context != null) {
context.free_layout (graph);
}
}
}
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