internal void DoSnapshot(UndoSnapshot snapshot)
{
if (snapshot.unmanagedData != null)
{
var stream = new MemoryStream(snapshot.unmanagedData, false);
reader = new BinaryReader(stream);
}
else
{
reader = null;
}
managed = snapshot.managedReferences;
refId = 0;
}
internal UndoSnapshot Build()
{
byte[] buffer = null;
if (stream.Position > 0)
{
buffer = new byte[stream.Position];
Array.Copy(stream.GetBuffer(), buffer, stream.Position);
}
var result = new UndoSnapshot(currentTarget, managedRefs.Count > 0 ? managedRefs.ToArray() : null, buffer);
stream.Position = 0;
managedRefs.Clear();
currentTarget = null;
return(result);
}
public void RevertToUndoSnapshot(ModelObject target, UndoSnapshot snapshot)
{
snapshotReader.DoSnapshot(snapshot);
ReadUndo(target, snapshotReader);
}