private void DoAction(SortAction action)
{
action.Do();
doneActions.Push(action);
undoneActions.Clear();
form.ValidateChildren();
}
/// <summary>
/// Pop an action from the undoneActions stack and exeucutes it. Returns false if there was no action on the stack to redo.
/// </summary>
public bool Redo()
{
if (undoneActions.Count > 0)
{
SortAction action = undoneActions.Pop();
action.Do();
if (action.Successful)
{
doneActions.Push(action);
}
form.ValidateChildren();
return(true);
}
return(false);
}