[gegl] examples: Don't use gegl_graph() helper in gegl-convert

[Daniel Sabo <daniels src gnome org>]

commit db9f4a4fb89a7e6baf2d47eaf6f01e7101ff0935
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Sun Nov 17 09:04:21 2013 -0800

    examples: Don't use gegl_graph() helper in gegl-convert

 examples/gegl-convert.c |   36 ++++++++++++++++++++++++++++--------
 1 files changed, 28 insertions(+), 8 deletions(-)
---
diff --git a/examples/gegl-convert.c b/examples/gegl-convert.c
index 8161f8e..4201556 100644
--- a/examples/gegl-convert.c
+++ b/examples/gegl-convert.c
@@ -4,7 +4,7 @@ gint
 main (gint    argc,
       gchar **argv)
 {
-  GeglNode *graph, *sink;
+  GeglNode *graph, *src, *sink;
   GeglBuffer *buffer = NULL;
 
   gegl_init (&argc, &argv);
@@ -16,24 +16,44 @@ main (gint    argc,
       return 1;
     }
 
-  graph = gegl_graph (sink=gegl_node ("gegl:buffer-sink", "buffer", &buffer, NULL,
-                           gegl_node ("gegl:load", "path", argv[1], NULL)));
+  graph = gegl_node_new ();
+  src   = gegl_node_new_child (graph,
+                               "operation", "gegl:load",
+                               "path", argv[1],
+                                NULL);
+  sink  = gegl_node_new_child (graph,
+                               "operation", "gegl:buffer-sink",
+                               "buffer", &buffer,
+                                NULL);
+
+  gegl_node_link_many (src, sink, NULL);
+
   gegl_node_process (sink);
   g_object_unref (graph);
+
+  /* FIXME: Currently a buffer will always be returned, even if the source is missing */
   if (!buffer)
     {
       g_print ("Failed to open %s\n", argv[1]);
       return 1;
     }
 
-  graph = gegl_graph (sink=gegl_node ("gegl:save",
-                      "path", argv[2], NULL,
-                      gegl_node ("gegl:buffer-source", "buffer", buffer, NULL)));
+  graph = gegl_node_new ();
+  src   = gegl_node_new_child (graph,
+                               "operation", "gegl:buffer-source",
+                               "buffer", buffer,
+                                NULL);
+  sink  = gegl_node_new_child (graph,
+                               "operation", "gegl:save",
+                               "path", argv[2],
+                                NULL);
+
+  gegl_node_link_many (src, sink, NULL);
+
   gegl_node_process (sink);
+  g_object_unref (graph);
 
   g_object_unref (buffer); 
-  g_object_unref (buffer);  /* XXX: why is two unrefs needed here? */
-  g_object_unref (graph);
   gegl_exit ();
   return 0;
 }