public void Redo(Action <HistoryEntry> redo)
{
if (StackRedo.Count > 0)
{
HistoryEntry last = StackRedo.Pop();
redo.Invoke(last);
StackUndo.Push(last);
}
}
public IObservable <HistoryEntry> Redo(Func <HistoryEntry, IObservable <HistoryEntry> > execute)
{
if (StackRedo.Count == 0)
{
throw new Exception();
}
UpdateSubjects(true);
return(execute(StackRedo.Pop()).Do(entry =>
{
StackUndo.Push(entry);
UpdateSubjects();
}));
}
