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/*
* Copyright (C) 2011-2013 Karlsruhe Institute of Technology
*
* This file is part of Ufo.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <ufo/ufo-node.h>
/**
* SECTION:ufo-node
* @Short_description: Generic node that can be connected in a #UfoGraph
* @Title: UfoNode
*/
G_DEFINE_TYPE (UfoNode, ufo_node, G_TYPE_OBJECT)
#define UFO_NODE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UFO_TYPE_NODE, UfoNodePrivate))
struct _UfoNodePrivate {
UfoNode *copied_from;
gpointer label;
};
enum {
PROP_0,
N_PROPERTIES
};
UfoNode *
ufo_node_new (gpointer label)
{
UfoNode *node;
node = UFO_NODE (g_object_new (UFO_TYPE_NODE, NULL));
node->priv->label = label;
return node;
}
/**
* ufo_node_get_label:
* @node: A #UfoNode
*
* Get arbitrary label data of @node.
*
* Returns: (transfer none): The label of @node.
*/
gpointer
ufo_node_get_label (UfoNode *node)
{
g_return_val_if_fail (UFO_IS_NODE (node), NULL);
return node->priv->label;
}
static UfoNode *
ufo_node_copy_real (UfoNode *node,
GError **error)
{
return ufo_node_new (node->priv->label);
}
static gboolean
ufo_node_equal_real (UfoNode *n1,
UfoNode *n2)
{
g_return_val_if_fail (UFO_IS_NODE (n1) && UFO_IS_NODE (n2), FALSE);
/* FIXME: When done we should just check if the types match */
return n1 == n2 ||
n1->priv->copied_from == n2 ||
n2->priv->copied_from == n1;
}
/**
* ufo_node_copy:
* @node: A #UfoNode
* @error: Location for an error
*
* Get a copy of @node. How "deep" the copy is, depends on the inherited
* implementation of @node.
*
* Returns: (transfer full): Copy of @node.
*/
UfoNode *
ufo_node_copy (UfoNode *node,
GError **error)
{
UfoNode *offspring;
offspring = UFO_NODE_GET_CLASS (node)->copy (node, error);
offspring->priv->copied_from = node;
return offspring;
}
gboolean
ufo_node_equal (UfoNode *n1,
UfoNode *n2)
{
return UFO_NODE_GET_CLASS (n1)->equal (n1, n2);
}
static void
ufo_node_class_init (UfoNodeClass *klass)
{
klass->copy = ufo_node_copy_real;
klass->equal = ufo_node_equal_real;
g_type_class_add_private(klass, sizeof(UfoNodePrivate));
}
static void
ufo_node_init (UfoNode *self)
{
UfoNodePrivate *priv;
self->priv = priv = UFO_NODE_GET_PRIVATE (self);
priv->copied_from = NULL;
priv->label = NULL;
}
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