void UndoDeleteNodeCommand::undo()
{
// Deserialize the saved node.
Graph* g = App::instance()->getGraph();
SceneDeserializer::Info ds;
SceneDeserializer::deserializeNode(data, g, &ds);
// Extract the node from the temporary root
auto old_node = n;
n = g->childNodes().back();
// Find the new lists of node and datum pointers
auto new_datums = getDatums();
// Swap the node pointers!
stack->swapPointer(old_node, n);
for (auto a = datums.begin(); a != datums.end(); ++a)
{
Q_ASSERT(new_datums.contains(a.key()));
stack->swapPointer(a.value(), new_datums[a.key()]);
}
App::instance()->getGraphScene()->setInspectorPositions(ds.inspectors);
}
void UndoDeleteNodeCommand::undo()
{
// Deserialize the saved node.
NodeRoot temp_root;
SceneDeserializer ds(&temp_root);
ds.run(data);
// Extract the node from the temporary root
n = temp_root.findChild<Node*>();
// Find the new lists of node and datum pointers
auto new_nodes = getNodes();
auto new_datums = getDatums();
// Swap all the pointers!
for (auto a = nodes.begin(), b = new_nodes.begin();
a != nodes.end() && b != new_nodes.end(); ++a, ++b)
stack->swapPointer(*a, *b);
for (auto a = datums.begin(); a != datums.end(); ++a)
{
Q_ASSERT(new_datums.contains(a.key()));
stack->swapPointer(a.value(), new_datums[a.key()]);
}
if (app)
{
app->makeUI(&temp_root);
app->getGraphScene()->setInspectorPositions(ds.inspectors);
}
}
void UndoDeleteNodeCommand::redo()
{
// Find and save flat lists of all nodes and datums that will be deleted
// (so that we can do a pointer swap when they're re-created)
datums = getDatums();
// Serialize n into data byte array
data = SceneSerializer::serializeNode(
n, App::instance()->getGraphScene()->inspectorPositions());
// Tell the system to delete the node
n->parentGraph()->uninstall(n);
}
void UndoDeleteNodeCommand::redo()
{
// Find and save flat lists of all nodes and datums that will be deleted
// (so that we can do a pointer swap when they're re-created)
nodes = getNodes();
datums = getDatums();
// Serialize n into data byte array
NodeRoot temp_root;
n->setParent(&temp_root);
data = app
? SceneSerializer(
&temp_root, app->getGraphScene()->inspectorPositions()).run(
SceneSerializer::SERIALIZE_NODES)
: SceneSerializer(&temp_root).run(
SceneSerializer::SERIALIZE_NODES);
// Tell the system to delete the node
n->deleteLater();
}
