/data/refman/pasoursint/CMSSW_6_1_1/src/Fireworks/Core/src/CmsShowNavigator.cc

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// -*- C++ -*-
//
// Package:     newVersion
// Class  :     CmsShowNavigator
// $Id: CmsShowNavigator.cc,v 1.114 2012/07/07 03:36:43 amraktad Exp $
//

#include "DataFormats/FWLite/interface/Event.h"
#include "Fireworks/Core/src/CmsShowMain.h"

#include "Fireworks/Core/interface/FWEventItem.h"

// system include files
#include <boost/regex.hpp>
#include "TROOT.h"
#include "TTree.h"
#include "TFile.h"
#include "TError.h"
#include "TGTextEntry.h"
#include "TGNumberEntry.h"
#include "TBranch.h"
#include "TAxis.h"

#include  <TApplication.h>
#include  <TSystem.h>
#include  <TObject.h>

// user include files
#include "Fireworks/Core/interface/CmsShowNavigator.h"
#include "Fireworks/Core/interface/CSGAction.h"
#include "Fireworks/Core/interface/FWEventItemsManager.h"
#include "Fireworks/Core/interface/FWGUIEventFilter.h"
#include "Fireworks/Core/interface/FWTEventList.h"
#include "Fireworks/Core/interface/FWGUIManager.h"
#include "Fireworks/Core/interface/FWGUIEventSelector.h"
#include "Fireworks/Core/interface/FWJobMetadataManager.h"
#include "Fireworks/Core/interface/FWConfiguration.h"
#include "Fireworks/Core/interface/Context.h"
#include "Fireworks/Core/interface/fwLog.h"

//
// constructors and destructor
//
CmsShowNavigator::CmsShowNavigator(const CmsShowMain &main):
   FWNavigatorBase(main),
   m_currentEvent(0),

   m_filterState(kOff),
   m_filterMode(kOr),

   m_filesNeedUpdate(true),
   m_newFileOnNextEvent(false),

   m_maxNumberOfFilesToChain(1),

   m_main(main),
   m_guiFilter(0)
{
   m_guiFilter = new FWGUIEventFilter(this);
   filterStateChanged_.connect(boost::bind(&FWGUIEventFilter::updateFilterStateLabel, m_guiFilter, _1));
}

CmsShowNavigator::~CmsShowNavigator()
{
   delete m_guiFilter;
}

//
// member functions
//

bool
CmsShowNavigator::openFile(const std::string& fileName)
{
   fwLog(fwlog::kDebug) << "CmsShowNavigator::openFile [" << fileName << "]" << std::endl;
   FWFileEntry* newFile = 0;
   try
   {
      newFile = new FWFileEntry(fileName, m_main.getVersionCheck());
   }
   catch (std::exception& iException)
   {
      fwLog(fwlog::kError) <<"Navigator::openFile ecaught exception FWFileEntry constructor " << iException.what()<<std::endl;

      delete newFile;
      return false;
   }

   try 
   {
      // delete all previous files
      while ( !m_files.empty() )
      {
         FWFileEntry* file = m_files.front();
         m_files.pop_front();
         file->closeFile();
         delete file;
      }

      m_files.push_back(newFile);
      setCurrentFile(m_files.begin());

      // set filters
      for (std::list<FWEventSelector*>::iterator i = m_selectors.begin(); i != m_selectors.end(); ++i)
         newFile->filters().push_back(new FWFileEntry::Filter(*i));

      if (m_filterState != kOff)
         updateFileFilters();

      return true;
   }
   catch (std::exception& iException) 
   {
      fwLog(fwlog::kError) <<"Navigator::openFile caught exception "<<iException.what()<<std::endl;
      return false;
   }
}

bool
CmsShowNavigator::appendFile(const std::string& fileName, bool checkFileQueueSize, bool live)
{
   fwLog(fwlog::kDebug) << "CmsShowNavigator::appendFile [" << fileName << "]" << std::endl;
   FWFileEntry* newFile  = 0;
   try
   {
      newFile = new FWFileEntry(fileName, m_main.getVersionCheck());
   }
   catch(std::exception& iException)
   {
      fwLog(fwlog::kError) <<"Navigator::appendFile caught exception FWFileEntry constructor "<<iException.what()<<std::endl;
      delete newFile;
      return false;
   }

   try
   {  
      if (checkFileQueueSize)
      {
         int toErase = m_files.size() - (m_maxNumberOfFilesToChain + 1);
         while (toErase > 0)
         {
            FileQueue_i si = m_files.begin();
            if (m_currentFile == si)
               si++;
            FWFileEntry* file = *si;
            file->closeFile();
            delete file;
            
            m_files.erase(si);
            --toErase;
         }

         if (m_files.size() > m_maxNumberOfFilesToChain)
            fwLog(fwlog::kWarning) << "  " <<  m_files.size() << " chained files more than maxNumberOfFilesToChain \n" <<  m_maxNumberOfFilesToChain << std::endl;
      }

      m_files.push_back(newFile);

      // Needed for proper handling of first registered file when -port option is in effect.
      if (!m_currentFile.isSet())
         setCurrentFile(m_files.begin());

      // set filters
      for (std::list<FWEventSelector*>::iterator i = m_selectors.begin(); i != m_selectors.end(); ++i)
         newFile->filters().push_back(new FWFileEntry::Filter(*i));

      if (m_filterState != kOff)     
         updateFileFilters();

   }   
   catch(std::exception& iException)
   {
      std::cerr <<"Navigator::openFile caught exception "<<iException.what()<<std::endl;
      return false;
   }

   return true;
}

//______________________________________________________________________________

void CmsShowNavigator::setCurrentFile(FileQueue_i fi)
{
   if (fwlog::presentLogLevel() == fwlog::kDebug)
   {
      int cnt = 0;
      for (FileQueue_i i = m_files.begin(); i!= m_files.end(); i++)
      {
         if ( i == fi) break;
         cnt++;
      }
      
      fwLog(fwlog::kDebug) << "CmsShowNavigator::setCurrentFile [" << (*fi)->file()->GetName() << "] file idx in chain [" << cnt << "/" << m_files.size() -1 << "]" << std::endl;
   }
   else
   {
      fwLog(fwlog::kInfo) << "Set current file to "<< (*fi)->file()->GetName() << ".\n";
   }

   m_currentFile = fi;
   fileChanged_.emit((*m_currentFile)->file());
}

void
CmsShowNavigator::goTo(FileQueue_i fi, int event)
{
   if (fi != m_currentFile)
      setCurrentFile(fi);

   if (fwlog::presentLogLevel() == fwlog::kDebug)
   {
      int total = (*fi)->tree()->GetEntries();
      fwLog(fwlog::kDebug) << "CmsShowNavigator::goTo  current file event [" << event  << "/" << total -1<< "]"  << std::endl;

      CpuInfo_t  cpuInfo;
      MemInfo_t  memInfo;
      ProcInfo_t procInfo;
      gSystem->GetCpuInfo(&cpuInfo, 0);
      gSystem->GetMemInfo(&memInfo);
      gSystem->GetProcInfo(&procInfo);

      time_t curtime;
      time(&curtime);
      
      fwLog(fwlog::kDebug) << "Current Time: "  << ctime(&curtime);
      fwLog(fwlog::kDebug) << "memInfo.fMemUsed \t"  << memInfo.fMemUsed << std::endl;
      fwLog(fwlog::kDebug) << "memInfo.fSwapUsed\t" << memInfo.fSwapUsed << std::endl; 
      fwLog(fwlog::kDebug) << "procInfo.fMemResident\t" << procInfo.fMemResident << std::endl;
      fwLog(fwlog::kDebug) << "procInfo.fMemVirtual\t" << procInfo.fMemVirtual << std::endl;
      fwLog(fwlog::kDebug) << "cpuInfo.fLoad1m \t" << cpuInfo.fLoad1m << std::endl;
      fwLog(fwlog::kDebug) << "cpuInfo.fLoad5m \t" << cpuInfo.fLoad5m << std::endl;
   }
   
   (*m_currentFile)->event()->to(event);
   (*m_currentFile)->tree()->LoadTree(event);
   m_currentEvent = event;

   newEvent_.emit();
}

void
CmsShowNavigator::goToRunEvent(edm::RunNumber_t run, edm::LuminosityBlockNumber_t lumi, edm::EventNumber_t event)
{
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      Long64_t index = (*file)->event()->indexFromEventId(run, lumi, event);
      if (index >= 0)
      {
         goTo(file, index);
         break;
      }
   }
}

//______________________________________________________________________________

void
CmsShowNavigator::firstEvent()
{
   FileQueue_i x = m_files.begin();
   if (m_filterState == kOn)
   {
      while (x != m_files.end())
      {
         if ((*x)->hasSelectedEvents())
         {
            goTo(x, (*x)->firstSelectedEvent());
            return;
         }
         ++x;
      }
   }
   else
   {
      goTo(x, 0);
   }
}

void
CmsShowNavigator::lastEvent()
{
   FileQueue_i x = m_files.end();
   if (m_filterState == kOn)
   {
      while (x != m_files.begin())
      {
         --x;
         if ((*x)->hasSelectedEvents())
         {
            goTo(x, (*x)->lastSelectedEvent());
            return;
         }
      }
   }
   else
   {
      --x;
      goTo(x, (*x)->lastEvent());
   }
}

//______________________________________________________________________________

bool
CmsShowNavigator::nextSelectedEvent()
{
   int nextEv = (*m_currentFile)->nextSelectedEvent(m_currentEvent);
   if (nextEv > -1)
   {
      goTo(m_currentFile, nextEv);
      return true;
   }
   else
   {
      FileQueue_i i = m_currentFile; ++i;
      while (i != m_files.end())
      {
         if ((*i)->hasSelectedEvents())
         {
            goTo(i, (*i)->firstSelectedEvent());
            return true;
         }
         ++i;
      }
   }

   return false;
}

//______________________________________________________________________________

void
CmsShowNavigator::nextEvent()
{
   if (m_newFileOnNextEvent)
   {
      FileQueue_i last = m_files.end(); --last;
      if (m_filterState == kOn)
         goTo(last, (*last)->firstSelectedEvent());
      else
         goTo(last, 0);

      m_newFileOnNextEvent = false;
      return;
   }
   
   if (m_filterState == kOn)
   {
      nextSelectedEvent();
      return;
   }
   else
   {
      if (m_currentEvent < (*m_currentFile)->lastEvent())
      {
         goTo(m_currentFile, m_currentEvent + 1);
      }
      else
      {
         FileQueue_i x = m_currentFile ; ++x;
         if (x != m_files.end())
         {
            goTo(x, 0);
         }
      }
   }
}

//______________________________________________________________________________

bool
CmsShowNavigator::previousSelectedEvent()
{
   int prevEv = (*m_currentFile)->previousSelectedEvent(m_currentEvent);
   if (prevEv > -1)
   {
      goTo(m_currentFile, prevEv);
      return true;
   }
   else
   {
      FileQueue_i i(m_currentFile); i.previous(m_files);
      while (i != m_files.end())
      {
         if ((*i)->hasSelectedEvents())
         {
            goTo(i, (*i)->lastSelectedEvent());
            return true;
         }
         i.previous(m_files);
      }
   }
   return false;
}

//______________________________________________________________________________

void
CmsShowNavigator::previousEvent()
{
   if (m_filterState == kOn)
   {
      previousSelectedEvent();
   }
   else
   {
      if (m_currentEvent > 0)
      {
         goTo(m_currentFile, m_currentEvent - 1);
      }
      else
      {
         // last event in previous file
         FileQueue_i x = m_currentFile;
         if (x != m_files.begin())
         {
            --x;
            goTo(x, (*x)->lastEvent());
         }
      }
   }
}

//______________________________________________________________________________

void
CmsShowNavigator::toggleFilterEnable()
{
   // callback

   fwLog(fwlog::kInfo) << "CmsShowNavigator::toggleFilterEnable filters enabled [" << ( m_filterState == kOff) << "]" << std::endl;

   if (m_filterState == kOff)
   {
      m_filterState = kOn;
      m_guiFilter->setupDisableFilteringButton(true);

      updateFileFilters();
   }
   else
   {
      m_filterState = kOff;
      m_guiFilter->setupDisableFilteringButton(false);
   }

   filterStateChanged_.emit(m_filterState);
}

void
CmsShowNavigator::withdrawFilter()
{
   fwLog(fwlog::kInfo) << "CmsShowNavigator::witdrawFilter" << std::endl;
   m_filterState = kWithdrawn;
   filterStateChanged_.emit(m_filterState);
}

void
CmsShowNavigator::resumeFilter()
{
   fwLog(fwlog::kInfo) << "CmsShowNavigator::resumeFilter" << std::endl;
   m_filterState = kOn;
   filterStateChanged_.emit(m_filterState);
}

void
CmsShowNavigator::updateFileFilters()
{
   // run filters on files
   std::list<FWFileEntry::Filter>::iterator it;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      if ( m_filesNeedUpdate) (*file)->needUpdate();
      (*file)->updateFilters(m_main.context()->eventItemsManager(), m_filterMode == kOr);
   }
   updateSelectorsInfo();
   m_filesNeedUpdate = false;
 
   int nSelected = getNSelectedEvents();
   if (nSelected)
   {
      // go to the nearest selected event/file
      bool changeCurrentEvent = !(*m_currentFile)->isEventSelected(m_currentEvent);
      if (changeCurrentEvent)
      {
         if (!nextSelectedEvent())
            previousSelectedEvent();
      }

      if (m_filterState == kWithdrawn)
         resumeFilter();

      postFiltering_.emit(changeCurrentEvent);
   }
   else
   {
      withdrawFilter();
   }

   if (fwlog::presentLogLevel() == fwlog::kDebug)
   {
      fwLog(fwlog::kDebug) << "CmsShowNavigator::updateFileFilters selected events over files [" << getNSelectedEvents() << "/" << getNTotalEvents() << "]" << std::endl;
   }
}

//=======================================================================
void
CmsShowNavigator::removeFilter(std::list<FWEventSelector*>::iterator si)
{
   fwLog(fwlog::kDebug) << "CmsShowNavigator::removeFilter " << (*si)->m_expression << std::endl;

   std::list<FWFileEntry::Filter*>::iterator it;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      for (it = (*file)->filters().begin(); it != (*file)->filters().end(); ++it)
      {
         if ((*it)->m_selector == *si)
         {
            FWFileEntry::Filter* f = *it;
            delete f;
            (*file)->filters().erase(it);
            break;
         }
      }
   }

   delete *si;
   m_selectors.erase(si);
   m_filesNeedUpdate = true;
}

void
CmsShowNavigator::addFilter(FWEventSelector* ref)
{
   fwLog(fwlog::kDebug) << "CmsShowNavigator::addFilter " << ref->m_expression << std::endl;

   FWEventSelector* selector = new FWEventSelector(ref);
   m_selectors.push_back(selector);

   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      (*file)->filters ().push_back(new FWFileEntry::Filter(selector));
   }
   m_filesNeedUpdate = true;
}

void
CmsShowNavigator::changeFilter(FWEventSelector* selector, bool updateFilter)
{
   fwLog(fwlog::kDebug) << "CmsShowNavigator::changeFilter " << selector->m_expression << std::endl;

   std::list<FWFileEntry::Filter*>::iterator it;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      for (it = (*file)->filters().begin(); it != (*file)->filters().end(); ++it)
      {
         if ((*it)->m_selector == selector)
         {
            if (updateFilter)  (*it)->m_needsUpdate = true;
            (*it)->m_selector->m_expression  = selector->m_expression;
            break;
         }
      }
   }
   m_filesNeedUpdate = true;
}

void
CmsShowNavigator::applyFiltersFromGUI()
{
   m_filesNeedUpdate = false;

   // check if filters are set ON
   if (m_filterState == kOff)
   {
      m_filesNeedUpdate = true;
      m_filterState = kOn;
      m_guiFilter->setupDisableFilteringButton(true);
   }

   // compare changes and then call updateFileFilters
   std::list<FWEventSelector*>::iterator    si = m_selectors.begin();
   std::list<FWGUIEventSelector*>::iterator gi = m_guiFilter->guiSelectors().begin();

   if (m_filterMode != m_guiFilter->getFilterMode()) {
      m_filterMode = m_guiFilter->getFilterMode();
      m_filesNeedUpdate = true;
   }

   while (si != m_selectors.end() || gi != m_guiFilter->guiSelectors().end())
   {
      if (gi == m_guiFilter->guiSelectors().end() && si != m_selectors.end())
      {
         removeFilter(si++);
      }
      else if (si == m_selectors.end() && gi != m_guiFilter->guiSelectors().end() )
      {
         addFilter((*gi)->guiSelector());
         (*gi)->setOrigSelector(m_selectors.back());
         ++gi;
      }
      else
      {
         if (*si == (*gi)->origSelector())
         {
            FWEventSelector* g  = (*gi)->guiSelector();
            FWEventSelector* o = *si;
            bool filterNeedUpdate = o->m_expression != g->m_expression;
            if (filterNeedUpdate || o->m_enabled != g->m_enabled) {
               *o = *g;
               changeFilter(*si, filterNeedUpdate);
            }
            else
            {
               o->m_description = g->m_description;
            }
            ++si; ++gi;
         }
         else if ((*gi)->origSelector() == 0)
         {
            addFilter((*gi)->guiSelector());
            (*gi)->setOrigSelector(m_selectors.back());
            ++gi;
         }
         else
         {
            removeFilter(si++);
         }
      }
   }

   if ( m_filesNeedUpdate )
      updateFileFilters();

   filterStateChanged_.emit(m_filterState);

}
//______________________________________________________________________________
// helpers for gui state

bool
CmsShowNavigator::isFirstEvent()
{
   if (m_filterState == kOn)
   {
      FileQueue_i firstSelectedFile;
      for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
      {
         if ((*file)->hasSelectedEvents())
         {
            firstSelectedFile = file;
            break;
         }
      }

      if (firstSelectedFile == m_currentFile)
         return (*m_currentFile)->firstSelectedEvent() == m_currentEvent;
   }
   else
   {
      if (m_currentFile == m_files.begin())
      {
         return m_currentEvent == 0;
      }
   }
   return false;
}

bool
CmsShowNavigator::isLastEvent()
{
   if (m_filterState == kOn)
   {
      FileQueue_i lastSelectedFile;
      for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
      {
         if ((*file)->hasSelectedEvents())
            lastSelectedFile = file;
      }
      if (lastSelectedFile == m_currentFile)
         return (*m_currentFile)->lastSelectedEvent() == m_currentEvent;
   }
   else
   {
      FileQueue_i lastFile = m_files.end();
      --lastFile;
      if (m_currentFile == lastFile)
      {
         return (*m_currentFile)->lastEvent() == m_currentEvent;
      }
   }
   return false;
}

//______________________________________________________________________________
void
CmsShowNavigator::updateSelectorsInfo()
{
 
   // reset
   std::list<FWEventSelector*>::const_iterator sel = m_selectors.begin();
   while ( sel != m_selectors.end())
   {
      (*sel)->m_selected = 0;
      (*sel)->m_updated  = true;
      ++sel;
   }

   // loop file filters
   std::list<FWFileEntry::Filter*>::iterator i;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      std::list<FWFileEntry::Filter*>& filters = (*file)->filters();
      for (i = filters.begin(); i != filters.end(); ++i)
      {
         if ((*i)->m_eventList)
         {
            (*i)->m_selector->m_selected += (*i)->m_eventList->GetN();
         }

         if ((*i)->m_needsUpdate) 
            (*i)->m_selector->m_updated = false;
      }
   }
   if (m_guiFilter) 
   {
      std::list<FWGUIEventSelector*>::const_iterator gs = m_guiFilter->guiSelectors().begin();
      while ( gs !=  m_guiFilter->guiSelectors().end())
      {
         (*gs)->updateNEvents();
         ++gs;
      }
   }
}

int
CmsShowNavigator::getNSelectedEvents()
{
   int sum = 0;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      if ((*file)->globalSelection())
         sum += (*file)->globalSelection()->GetN();
   }
   return sum;
}

int
CmsShowNavigator::getNTotalEvents()
{
   int sum = 0;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      sum += (*file)->tree()->GetEntries();
   }

   return sum;
}

const char*
CmsShowNavigator::filterStatusMessage()
{
   if (m_filterState == kOn)
      return Form("%d events are selected from %d.", getNSelectedEvents(), getNTotalEvents());
   else if (m_filterState == kOff)
      return "Filtering is OFF.";
   else
      return "Filtering is disabled.";
}

bool
CmsShowNavigator::canEditFiltersExternally()
{
   bool haveActiveFilters = false;
   for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
   {
      if ((*file)->hasActiveFilters())
      {
         haveActiveFilters = true;
         break;
      }
   }

   bool btnEnabled = haveActiveFilters;

   if (m_guiFilter && m_guiFilter->isOpen())
      btnEnabled = false;

   return btnEnabled;
}

void
CmsShowNavigator::editFiltersExternally()
{
   editFiltersExternally_.emit(canEditFiltersExternally());
}

void
CmsShowNavigator::showEventFilterGUI(const TGWindow* p)
{
   if (m_guiFilter->IsMapped())
   {
      m_guiFilter->CloseWindow();
   }
   else
   {
      m_guiFilter->show(&m_selectors, m_filterMode, m_filterState);
      editFiltersExternally_.emit(canEditFiltersExternally());
   }
}

//______________________________________________________________________________

void
CmsShowNavigator::setFrom(const FWConfiguration& iFrom)
{
   m_filesNeedUpdate = true;

   EFilterState oldFilterState =  m_filterState;

  
   m_selectors.clear();

   // selectors   
   const FWConfiguration* sConf = iFrom.valueForKey("EventFilters");

   if (sConf)
   {
      const FWConfiguration::KeyValues* keyVals = sConf->keyValues();
      if (keyVals) {
         for(FWConfiguration::KeyValuesIt it = keyVals->begin(); it!= keyVals->end(); ++it)
         {
            const FWConfiguration& conf = (*it).second;
            FWEventSelector* selector = new FWEventSelector();
            selector->m_expression   = conf.valueForKey("expression")->value();
            selector->m_description  = conf.valueForKey("comment")->value();
            selector->m_enabled      = atoi(conf.valueForKey("enabled")->value().c_str());
            if (conf.valueForKey("triggerProcess"))
               selector->m_triggerProcess = conf.valueForKey("triggerProcess")->value();
            m_selectors.push_back(selector);
         }
      }
   }
   else
   {
      int numberOfFilters = 0;
      const FWConfiguration* nfvalue = iFrom.valueForKey( "EventFilter_total" );
      if(nfvalue)
         numberOfFilters = atoi(nfvalue->value().c_str());

      for(int i=0; i<numberOfFilters; ++i)
      {
         FWEventSelector* selector = new FWEventSelector();
         {
            const FWConfiguration* value = iFrom.valueForKey( Form("EventFilter%d_enabled",i));
            assert(value);
            std::istringstream s(value->value());
            s>>selector->m_enabled;
         }
         selector->m_expression  = iFrom.valueForKey( Form("EventFilter%d_selection",i))->value();
         selector->m_description = iFrom.valueForKey( Form("EventFilter%d_comment",i) )->value();

         
         if (strstr(selector->m_expression.c_str(), "HLT"))
            selector->m_triggerProcess = "HLT";
         
         m_selectors.push_back(selector);
      }
   }

   // filter mode
   {
      const FWConfiguration* value = iFrom.valueForKey( "EventFilter_mode" );
      if (value)
      {
         std::istringstream s(value->value());
         s>> m_filterMode;
      }
   }
   
   // filter on
   {
      const FWConfiguration* value = iFrom.valueForKey( "EventFilter_enabled" );
      std::istringstream s(value->value());
      int x;
      s>> x;
      m_filterState = x ? kOn : kOff;
   }
   

   // redesplay new filters in event filter dialog if already mapped
   if (m_guiFilter)
   {
      m_guiFilter->reset();
      if (m_guiFilter->IsMapped()) m_guiFilter->show(&m_selectors, m_filterMode, m_filterState);
   }
   
   if (!m_files.empty())
   {
      // change filters in existing files 
      for (FileQueue_i file = m_files.begin(); file != m_files.end(); ++file)
      { 
         (*file)->filters().clear();
         for (std::list<FWEventSelector*>::iterator i = m_selectors.begin(); i != m_selectors.end(); ++i)
            (*file)->filters().push_back(new FWFileEntry::Filter(*i));
      }
      
      
      // run new filters if enabled, else just reset 
      if  (m_filterState == kOn)
         updateFileFilters();
      else
         postFiltering_.emit(true);
   }
   // update CmsShowMainFrame checkBoxIcon and button text
   if (oldFilterState != m_filterState)
      filterStateChanged_.emit(m_filterState);
}

void
CmsShowNavigator::addTo(FWConfiguration& iTo) const
{
   // selectors
   FWConfiguration tmp;
   int cnt = 0;
   for (std::list<FWEventSelector*>::const_iterator sel = m_selectors.begin(); sel != m_selectors.end(); ++sel) 
   {
      FWConfiguration filter;

      filter.addKeyValue("expression",FWConfiguration((*sel)->m_expression));
      filter.addKeyValue("enabled", FWConfiguration((*sel)->m_enabled ? "1" : "0"));
      filter.addKeyValue("comment", FWConfiguration((*sel)->m_description));
  
      if (!(*sel)->m_triggerProcess.empty())
         filter.addKeyValue("triggerProcess",FWConfiguration((*sel)->m_triggerProcess));

      tmp.addKeyValue(Form("------Filter[%d]------", cnt), filter,true);
      ++cnt;
   }

   iTo.addKeyValue("EventFilters", tmp,true);

   // mode
   {
      std::stringstream s;
      s<< m_filterMode;
      iTo.addKeyValue("EventFilter_mode", s.str());
   }

   // enabled
   iTo.addKeyValue("EventFilter_enabled",FWConfiguration( m_filterState == kOn ? "1" : "0"));
}

std::vector<std::string>& 
CmsShowNavigator::getProcessList() const
{
  return  m_main.context()->metadataManager()->processNamesInJob();
}

const edm::EventBase* 
CmsShowNavigator::getCurrentEvent() const
{
   return m_currentFile.isSet() ? (*m_currentFile)->event() : 0; 
}

const char*
CmsShowNavigator::frameTitle()
{
   if (m_files.empty()) return "";

   int nf = 0;
   for (FileQueue_t::const_iterator i = m_files.begin(); i!= m_files.end(); i++)
   {

      if ( i == m_currentFile) break;
      nf++;
   }

   TString name = (*m_currentFile)->file()->GetName();
   int l = name.Last('/');
   if (l != kNPOS)
      name.Remove(0, l+1);

   return Form("%s [%d/%d], event [%d/%d]", name.Data(),
               nf+1,  (int) m_files.size(),
               m_currentEvent+1, (*m_currentFile)->lastEvent()+1);
}