int
node_store_remove_part (NodeStore *self, Part *part)
{
Node *node;
SheetPos lookup_key;
SheetPos pos;
gdouble x, y;
int i, num_pins;
Pin *pins;
g_return_val_if_fail (self != NULL, FALSE);
g_return_val_if_fail (IS_NODE_STORE (self), FALSE);
g_return_val_if_fail (part != NULL, FALSE);
g_return_val_if_fail (IS_PART (part), FALSE);
self->parts = g_list_remove (self->parts, part);
self->items = g_list_remove (self->items, part);
num_pins = part_get_num_pins (part);
item_data_get_pos (ITEM_DATA (part), &pos);
pins = part_get_pins (part);
for (i = 0; i < num_pins; i++) {
x = pos.x + pins[i].offset.x;
y = pos.y + pins[i].offset.y;
// Use the position of the pin as lookup key.
lookup_key.x = x;
lookup_key.y = y;
node = g_hash_table_lookup (self->nodes, &lookup_key);
if (node) {
if (!node_remove_pin (node, &pins[i])) {
g_warning ("Couldn't remove pin.");
return FALSE;
}
// If the node is empty after removing the pin,
// remove the node as well.
if (node_is_empty (node)) {
g_hash_table_remove (self->nodes, &lookup_key);
g_object_unref (G_OBJECT (node));
}
}
else {
return FALSE;
}
}
return TRUE;
}
/**
* remove/unregister a part from the nodestore
* this does _not_ free the part!
*/
gboolean node_store_remove_part (NodeStore *self, Part *part)
{
Node *node;
Coords pin_pos;
Coords part_pos;
int i, num_pins;
Pin *pins;
g_return_val_if_fail (self, FALSE);
g_return_val_if_fail (IS_NODE_STORE (self), FALSE);
g_return_val_if_fail (part, FALSE);
g_return_val_if_fail (IS_PART (part), FALSE);
self->parts = g_list_remove (self->parts, part);
self->items = g_list_remove (self->items, part);
num_pins = part_get_num_pins (part);
item_data_get_pos (ITEM_DATA (part), &part_pos);
pins = part_get_pins (part);
for (i = 0; i < num_pins; i++) {
pin_pos.x = part_pos.x + pins[i].offset.x;
pin_pos.y = part_pos.y + pins[i].offset.y;
node = g_hash_table_lookup (self->nodes, &pin_pos);
if (node) {
if (!node_remove_pin (node, &pins[i])) {
g_warning ("Could not remove pin[%i] from node %p.", i, node);
return FALSE;
}
// If the node is empty after removing the pin,
// remove the node as well.
if (node_is_empty (node)) {
g_hash_table_remove (self->nodes, &pin_pos);
g_object_unref (G_OBJECT (node));
}
} else {
return FALSE;
}
}
return TRUE;
}
