public static IBM5250DataStreamCommand Factory(InputByteArray InputArray)
{
IBM5250DataStreamCommand dsCmd = null;
if (InputArray.RemainingLength >= 2)
{
var buf = InputArray.PeekBytes(2);
if (buf[0] == 0x04)
{
var cmdCode = buf[1].ToCommandCode();
if (cmdCode != null)
{
if (cmdCode.Value == CommandCode.ClearUnit)
{
dsCmd = new ClearUnitCommand();
}
else if (cmdCode.Value == CommandCode.WTD)
{
dsCmd = WriteToDisplayCommand.Factory(InputArray);
}
if (dsCmd != null)
{
InputArray.AdvanceIndex(dsCmd.GetDataStreamLength());
}
}
}
}
return(dsCmd);
}
public static WriteToDisplayCommand Factory(InputByteArray InputArray)
{
WriteToDisplayCommand wtdCmd = null;
if (InputArray.RemainingLength >= 4)
{
var buf = InputArray.PeekBytes(4);
if ((buf[0] == 0x04) && (buf[1] == 0x11))
{
byte[] controlChars = new byte[2];
Array.Copy(buf, 3, controlChars, 0, 2);
wtdCmd = new WriteToDisplayCommand(InputArray, controlChars);
InputArray.AdvanceIndex(4);
// gather WTD orders and display characters.
while (true)
{
if (InputArray.RemainingLength == 0)
{
break;
}
var b1 = InputArray.PeekByte(0);
var wtdOrder = b1.ToWtdOrder();
if (wtdOrder != null)
{
}
else if (TextDataOrder.IsTextDataChar(b1))
{
var tdOrder = TextDataOrder.Factory(InputArray);
wtdCmd.OrderList.Add(tdOrder);
}
else
{
break;
}
}
}
}
return(wtdCmd);
}