private byte[] BuildResponseByteStream(
ScreenContent ScreenContent,
AidKey AidKey, OneRowCol CaretRowCol, HowReadScreen?HowRead = null)
{
var ba = new ByteArrayBuilder();
// what to read from the screen.
HowReadScreen howRead = HowReadScreen.ReadAllInput;
if (HowRead != null)
{
howRead = HowRead.Value;
}
{
var buf = DataStreamHeader.Build(99, TerminalOpcode.PutGet);
ba.Append(buf);
}
// location of caret on the canvas.
{
var rowCol = CaretRowCol.ToParentRelative(ScreenContent);
var buf = ResponseHeader.Build(rowCol as OneRowCol, AidKey);
ba.Append(buf);
}
foreach (var dictItem in ScreenContent.FieldDict)
{
ContentField responseField = null;
var contentItem = dictItem.Value;
// process only ContentField.
if (contentItem is ContentField)
{
var contentField = contentItem as ContentField;
responseField = contentField;
}
// only process the first of a continued entry field.
if ((responseField != null) && (responseField is ContinuedContentField))
{
var contContentField = responseField as ContinuedContentField;
if (contContentField.ContinuedFieldSegmentCode != ContinuedFieldSegmentCode.First)
{
responseField = null;
}
}
if ((howRead == HowReadScreen.ReadMdt) &&
(responseField != null) && (responseField.GetModifiedFlag(ScreenContent) == false))
{
responseField = null;
}
if (responseField != null)
{
IRowCol rowCol = responseField.RowCol.ToOneRowCol().AdvanceRight();
{
rowCol = rowCol.ToParentRelative(ScreenContent);
var buf = SetBufferAddressOrder.Build(rowCol as OneRowCol);
ba.Append(buf);
}
{
var buf = TextDataOrder.Build(responseField.GetFieldShowText(ScreenContent));
ba.Append(buf);
}
}
}
// update length of response data stream.
var ra = ba.ToByteArray();
{
var wk = new ByteArrayBuilder();
wk.AppendBigEndianShort((short)ra.Length);
Array.Copy(wk.ToByteArray(), ra, 2);
}
return(ra);
}