private void comboBoxConnections_SelectedIndexChanged(object sender, System.EventArgs e)
{
HideTabs();
//Get the selected Association handle
signature = comboBoxConnections.SelectedItem.ToString();
comboBoxConnections.Select(0,signature.Length);
assocHandle = (Association) dicom.ConnectionsList[signature];
//Fill up the Association overview for selected association
if (assocHandle != null)
{
callingAETitle.Text = assocHandle.CallingAETitle;
calledAETitle.Text = assocHandle.CalledAETitle;
richTextBoxReq.Text = assocHandle.RequestedPresentationContexts;
richTextBoxAccept.Text = assocHandle.AcceptedPresentationContexts;
reqIPAddress.Text = assocHandle.CalledAETitle;
accIPAddress.Text = assocHandle.CallingAETitle;
DisplayIPAddress(signature);
}
//Fill up the PDUs overview for selected association
ClearLists();
if (assocHandle != null)
{
foreach (PDU_DETAIL pdu in assocHandle.PDUList)
{
PreparePDUList(pdu);
}
//Display validation result for selected association
ActionEvaluateSelectedDICOMCommunication();
}
}
/// <summary>
/// This is the main routine called from TCP layer for handling DICOM data
/// </summary>
/// <param name="state"></param>
/// <param name="direction"></param>
public void ReceiveTCPData(TCPState state, int direction)
{
byte[] p = state.data[direction];
int length = (int)state.Position[direction];
uint Position = 0;
Association Assoc = (Association)state.UserInfo;
bool TryAnotherPDU = true;
while(length >= Position + 6 && TryAnotherPDU)
{
TryAnotherPDU = false;
byte PDUType = p[Position];
uint Index = Position + 2;
uint PDULength = DICOMUtility.Get4BytesBigEndian( p , ref Index);
if(Assoc == null && PDUType == 1)
{
Assoc = new Association(state, BaseFileName + state.Signature[0], System.DateTime.Now);
Assoc.Output += new Association.OutputEvent(OutputHandler);
state.UserInfo = Assoc;
string signature = state.Signature[0];
list.Add(signature,Assoc);
OutputHandler("New : " + signature + "\r\n",true,true);
// snifferObj.Invoke(snifferObj.AddConnectionHandler, new object[] { signature });
}
if(Assoc !=null && length >= Index + PDULength)
{
lock(Assoc)
{
Assoc.HandlePDU(p,Position,PDULength,direction, state);
TryAnotherPDU = true;
}
}
else if(length>64000 && Assoc==null) // non-DICOM
{
OutputHandler("Non-DICOM data : " + state.Signature[0] + "\r\n",true,true);
break; // don't process any more if we have a currently unhandleable PDU
}
else
{
break; // don't prcess any more if we have a currently unhandleable PDU
}
Position += PDULength + 6;
}
if(Position > 0 )
{
if(state.data[direction] != null)
{
state.UsedData(Position, direction);
}
// Check if there is anything we have "stacked up" on the other direction
ReceiveTCPData(state, 1-direction);
}
return;
}
