private void OnNumberCommand(int num)
{
state.OnNumber(num);
if (state.ClearAccumulator)
{
model.ClearAccumulator();
}
if (state.OverwriteDisplay)
{
Display = num.ToString();
}
else if (state.ReplaceZero)
{
Display = Display.Remove(Display.Length - 1, 1) + num;
}
else if (state.AppendNumber && !DisplayFull)
{
Display += num;
}
}
