//--------------------------------------------------------------------------------------------------
public override void Restore(Entity instance, UndoHandler undoHandler)
{
var dataBlobOwner = instance as IUndoableDataBlob;
Debug.Assert(dataBlobOwner != null);
dataBlobOwner.SetUndoDataBlob(_StoredData);
}
//--------------------------------------------------------------------------------------------------
public override void Restore(Entity instance, UndoHandler undoHandler)
{
_ChangeList.ForEach(change => change.RestoreValue(instance));
var shape = instance as Shapes.Shape;
shape?.Invalidate();
}
//--------------------------------------------------------------------------------------------------
public override void Restore(Entity instance, UndoHandler undoHandler)
{
var container = undoHandler.FindEntityInstance(InstanceGuid) as IUndoableTopology;
Debug.Assert(container != null, "container != null");
var child = undoHandler.FindEntityInstance(_ChildGuid);
var parent = _ParentGuid.HasValue ? undoHandler.FindEntityInstance(_ParentGuid.Value) : null;
switch (_TopoAction)
{
case UndoHandler.TopologyAction.Added:
Debug.Assert(child != null);
// Counter-Action: Remove.
container.RemoveChildFromUndo(child);
break;
case UndoHandler.TopologyAction.Removed:
Debug.Assert(child == null);
// Counter-Action: Add.
var context = new SerializationContext(SerializationScope.UndoRedo);
context.SetInstance(CoreContext.Current.Document);
context.SetInstance <IDocument>(CoreContext.Current.Document);
context.SetInstance(CoreContext.Current.Workspace);
child = Serializer.Deserialize <Entity>(_StoredData, context);
if (child != null)
{
container.AddChildFromUndo(child, parent);
foreach (var entity in context.GetInstanceList <InteractiveEntity>())
{
entity.RaiseVisualChanged();
}
}
break;
case UndoHandler.TopologyAction.Moved:
Debug.Assert(child != null);
// Counter-Action: Move back.
undoHandler.AddTopologyChange(UndoHandler.TopologyAction.Moved, container, child);
container.MoveChildFromUndo(child, parent);
break;
}
}
public abstract void Restore(Entity instance, UndoHandler undoHandler);
