public static IState Instance(IDoubleEnumerator ide)
{
ie = ide;
try
{
if (ie.MoveNext())
{
ie.ShowCurrent(Target.Cashier);
}
else
{
throw new ListingException();
}
ShowList();
}
catch (ListingException)
{
throw new Exception(PosMessage.LIST_EMPTY);
}
catch (Exception ex)
{
cr.Log.Error("Exception occured. {0}", ex.Message);
throw new ListingException();
}
return(state);
}
//Instance method has 2 parameters
//1. Enumerator for a list of items to be displayed. Each item implements
//IMenuItem interface, which means that it knows howto display itself
//2. Delegate for the method which will be called on the selected item
//when the user presses enter key
public static new IState Instance(IDoubleEnumerator ide, ProcessSelectedItem psi)
{
#if WindowsCE
return(List.Instance(ide, psi));
#else
ListForm.SetList(ide);
ProcessSelected = psi;
List.Instance(ide);
return(state);
#endif
}
//PSI not supplied in below function - designed to be called from inherited classes such
//as SetupMenu where returnCancel may be CashRegisterLoadError instance
//protected static IState Instance(IDoubleEnumerator ide, StateInstance returnCancel)
//{
// ReturnCancel = returnCancel;
// return Instance(ide);
//}
public override void Escape()
{
if (ie.Current is FiscalItem && cr.Item.TotalAmount > 0)
{
return;
}
ie = null;
if (ReturnCancel == null)
{
cr.State = Start.Instance();
}
else
{
cr.State = ReturnCancel();
}
ReturnCancel = null;
}
public static new IState Instance(IDoubleEnumerator ide)
{
Instance(ide, new ProcessSelectedItem(cr.Execute));
return(state);
}
public static IState Instance(IDoubleEnumerator ide, ProcessSelectedItem psi, StateInstance returnCancel)
{
ProcessSelected = psi;
ReturnCancel = returnCancel;
return(Instance(ide));
}
//Instance method has 2 parameters
//1. Enumerator for a list of items to be displayed. Each item implements
//IMenuItem interface, which means that it knows howto display itself
//2. Delegate for the method which will be called on the selected item
//when the user presses enter key
public static IState Instance(IDoubleEnumerator ide, ProcessSelectedItem psi)
{
ProcessSelected = psi;
return(Instance(ide));
}
public static IState Instance(IDoubleEnumerator ide, ProcessSelectedItem <MenuLabel> psi, StateInstance returnCancel)
{
ReturnCancel = returnCancel;
return(Instance(ide, psi));
}
public static IState Instance(IDoubleEnumerator ide, ProcessSelectedItem <MenuLabel> psi)
{
ProcessSelected = psi;
List.Instance(ide);
return(state);
}
