static void wire_unregister (ItemData *data)
{
NodeStore *store;
g_return_if_fail (IS_WIRE (data));
store = item_data_get_store (data);
node_store_remove_wire (store, WIRE (data));
}
static gboolean wire_register (ItemData *data)
{
NodeStore *store;
g_return_val_if_fail (IS_WIRE (data), FALSE);
store = item_data_get_store (data);
return node_store_add_wire (store, WIRE (data));
}
static void part_unregister (ItemData *data)
{
NodeStore *store;
g_return_if_fail (IS_PART (data));
store = item_data_get_store (data);
node_store_remove_part (store, PART (data));
}
static void
textbox_unregister (ItemData *data)
{
NodeStore *store;
g_return_if_fail (IS_TEXTBOX (data));
store = item_data_get_store (data);
node_store_remove_textbox (store, TEXTBOX (data));
}
static int
textbox_register (ItemData *data)
{
NodeStore *store;
g_return_val_if_fail (IS_TEXTBOX (data), 0);
store = item_data_get_store (data);
node_store_add_textbox (store, TEXTBOX (data));
return 0;
}
/**
* register a part to its nodestore
* @param data the part
* @attention the @data has to have a valid nodestore set
*/
static int part_register (ItemData *data)
{
NodeStore *store;
g_return_val_if_fail (IS_PART (data), FALSE);
store = item_data_get_store (data);
node_store_add_part (store, PART (data));
return TRUE;
}
int
node_store_remove_wire (NodeStore *store, Wire *wire)
{
GSList *list;
SheetPos lookup_key, pos, length;
g_return_val_if_fail (store != NULL, FALSE);
g_return_val_if_fail (IS_NODE_STORE (store), FALSE);
g_return_val_if_fail (wire != NULL, FALSE);
g_return_val_if_fail (IS_WIRE (wire), FALSE);
if (item_data_get_store (ITEM_DATA (wire)) == NULL) {
g_warning ("Trying to remove non-stored wire.");
return FALSE;
}
wire_get_pos_and_length (wire, &pos, &length);
store->wires = g_list_remove (store->wires, wire);
store->items = g_list_remove (store->items, wire);
// If the nodes that this wire passes through will be
// empty when the wire is removed, remove the node as well.
// We must work on a copy of the nodes list, since it
// changes as we remove nodes.
list = g_slist_copy (wire_get_nodes (wire));
for (; list; list = list->next) {
Node *node = list->data;
lookup_key = node->key;
node_remove_wire (node, wire);
wire_remove_node (wire, node);
if (node_is_empty (node))
g_hash_table_remove (store->nodes, &lookup_key);
}
g_slist_free (list);
return TRUE;
}
/**
* removes/unregisters a wire from the nodestore
* this does _not_ free the wire itself!
*/
gboolean node_store_remove_wire (NodeStore *store, Wire *wire)
{
GSList *copy, *iter;
Coords lookup_key;
g_return_val_if_fail (store, FALSE);
g_return_val_if_fail (IS_NODE_STORE (store), FALSE);
g_return_val_if_fail (wire, FALSE);
g_return_val_if_fail (IS_WIRE (wire), FALSE);
if (item_data_get_store (ITEM_DATA (wire)) == NULL) {
g_warning ("Trying to remove not-stored wire %p.", wire);
return FALSE;
}
store->wires = g_list_remove (store->wires, wire);
store->items = g_list_remove (store->items, wire);
// If the nodes that this wire passes through will be
// empty when the wire is removed, remove the node as well.
// FIXME if done properly, a list copy is _not_ necessary
copy = g_slist_copy (wire_get_nodes (wire));
for (iter = copy; iter; iter = iter->next) {
Node *node = iter->data;
lookup_key = node->key;
node_remove_wire (node, wire);
wire_remove_node (wire, node);
if (node_is_empty (node))
g_hash_table_remove (store->nodes, &lookup_key);
}
g_slist_free (copy);
return TRUE;
}
