TGo4Display.cxx

Go to the documentation of this file.

// $Id: TGo4Display.cxx 999 2013-07-25 11:58:59Z linev $
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum für Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#include "TGo4Display.h"

#include "TGo4Log.h"
#include "TGo4ThreadHandler.h"
#include "TGo4Task.h"
#include "TGo4TaskManager.h"
#include "TGo4DisplayDrawerTimer.h"
#include "TGo4DisplayLoggerTimer.h"
#include "TGo4Status.h"

#include "TGo4AnalysisProxy.h"
#include "TGo4Slot.h"


TGo4Display::TGo4Display(Bool_t isserver)
   : TGo4Master("Display",
                isserver, // servermode
                "dummy", //for clientmode only
                1), // negotiationport
     fxAnalysis(0)
{
   // start gui timers instead of threads
   fxDrawTimer= new TGo4DisplayDrawerTimer(this, 30);
   fxLogTimer= new TGo4DisplayLoggerTimer(this, 500);
   fxDrawTimer->TurnOn();
   fxLogTimer->TurnOn();

    // Start the GUI Registry
   GetTask()->Launch();
}


TGo4Display::~TGo4Display()
{
   GO4TRACE((15,"TGo4Display::~TGo4Display()", __LINE__, __FILE__));
   //fxWorkHandler->CancelAll(); // make sure threads wont work on gui instance after it is deleted
   if(GetTask())
      GetTask()->GetWorkHandler()->CancelAll();
   delete fxDrawTimer;
   delete fxLogTimer;
   if (fxAnalysis != 0) {
      fxAnalysis->DisplayDeleted(this); // will also clear back referenc to us
      TGo4Slot* pslot = fxAnalysis->ParentSlot();
      if (pslot) {
         //std::cout <<"TGo4Display dtor will delete analysis proxy parent slot" << std::endl;
         pslot->Delete();
      } else {
         //std::cout <<"TGo4Display dtor will delete analysis proxy directly" << std::endl;
         delete fxAnalysis; // regularly, we cleanup the analysis proxy.
      }

   }
   TGo4Log::Info("------- TGO4DISPLAY DESTRUCTOR FINISHED. ------");
}

void TGo4Display::DisplayData(TObject* data)
{
   if (fxAnalysis!=0)
     fxAnalysis->ReceiveObject(dynamic_cast<TNamed*>(data));
   else
      delete data;
}

void TGo4Display::DisplayLog(TGo4Status * Status)
{
   if (fxAnalysis!=0)
     fxAnalysis->ReceiveStatus(Status);
   else
     delete Status;
}

Bool_t TGo4Display::DisconnectSlave(const char* name, Bool_t waitforslave)
{
   // std::cout <<"+++++++++ TGo4Display::DisconnectSlave..." << std::endl;


// Note: taskhandlerabortexception and shutdown of analysis server
// both will schedule a TGo4ComDisconnectSlave into local command queue
// of master task, calling TGo4Master::DisconnectSlave()
// here we override this method to inform gui about this
//
// before disconnecting, gui might stop monitoring timers here....
//...
  Bool_t rev=TGo4Master::DisconnectSlave(name,waitforslave); // should do all required things for disconnection
  // after disconnecting, gui might react on result by cleaning up browser, window caption etc.
  // for example:
  if(rev)
     {
       if (fxAnalysis!=0)

          fxAnalysis->DisplayDisconnected(this);

//        std::cout <<"+++++++++ TGo4Display::DisconnectSlave success on disconnect!!!" << std::endl;
//        std::cout <<"+++++++++ Please add something to inform GUI here about disconnected analysis!!!" << std::endl;
     }
   else
     {
//        std::cout <<"+++++++++ TGo4Display::DisconnectSlave failed!!!" << std::endl;
//        std::cout <<"+++++++++ Please add something to inform GUI here..." << std::endl;
     }

  return rev;
}