#include <Fireworks/Core/interface/FWModelChangeManager.h>

Public Member Functions
void	beginChanges ()
void	changed (const FWModelId &)
void	changed (const FWEventItem *)
void	endChanges ()
	FWModelChangeManager ()
void	itemsGoingToBeClearedSlot (void)
void	newItemSlot (FWEventItem *)
virtual	~FWModelChangeManager ()
Public Attributes
sigc::signal< void >	changeSignalsAreComing_
sigc::signal< void >	changeSignalsAreDone_
Private Member Functions
	FWModelChangeManager (const FWModelChangeManager &)
const FWModelChangeManager &	operator= (const FWModelChangeManager &)
Private Attributes
std::vector< FWModelIds >	m_changes
std::vector< FWModelChangeSignal >	m_changeSignals
unsigned int	m_depth
std::set< const FWEventItem * >	m_itemChanges
std::vector< FWItemChangeSignal >	m_itemChangeSignals

Detailed Description

Description: Manages propagating announcements of changes to Models to any interested party

Usage: <usage>

Definition at line 34 of file FWModelChangeManager.h.

Constructor & Destructor Documentation

FWModelChangeManager::FWModelChangeManager ( )

Definition at line 36 of file FWModelChangeManager.cc.

FWModelChangeManager::~FWModelChangeManager ( ) [virtual]

Definition at line 46 of file FWModelChangeManager.cc.

{
}

FWModelChangeManager::FWModelChangeManager ( const FWModelChangeManager & ) [private]

Member Function Documentation

void FWModelChangeManager::beginChanges ( )

Definition at line 66 of file FWModelChangeManager.cc.

References m_depth.

Referenced by FWChangeSentry::FWChangeSentry().

{
   ++m_depth;
}

void FWModelChangeManager::changed ( const FWModelId & iID )

Definition at line 72 of file FWModelChangeManager.cc.

References FWEventItem::id(), FWModelId::item(), and m_changes.

Referenced by FWEventItem::destroy(), FWEventItem::handleChange(), FWEventItem::runFilter(), FWEventItem::select(), FWEventItem::setDefaultDisplayProperties(), FWEventItem::setDisplayProperties(), FWEventItem::toggleSelect(), and FWEventItem::unselect().

{
   FWChangeSentry sentry(*this);
   assert(iID.item());
   assert(iID.item()->id() < m_changes.size());
   m_changes[iID.item()->id()].insert(iID);
}

void FWModelChangeManager::changed ( const FWEventItem * iItem )

Definition at line 81 of file FWModelChangeManager.cc.

References FWEventItem::id(), m_changes, and m_itemChanges.

{
   FWChangeSentry sentry(*this);
   assert(0!= iItem);
   m_itemChanges.insert(iItem);
   //remove any pending changes on models owned by this item
   assert(iItem->id() <m_changes.size());
   m_changes[iItem->id()].clear();
}

void FWModelChangeManager::endChanges ( )

Definition at line 100 of file FWModelChangeManager.cc.

References ExpressReco_HICollisions_FallBack::cerr, changeSignalsAreComing_, exception, cmsRelvalreport::exit, fwLog, getHLTprescales::index, fwlog::kError, m_changes, m_changeSignals, m_depth, m_itemChanges, m_itemChangeSignals, sendChangeSignalsAreDone(), and cms::Exception::what().

Referenced by FWChangeSentry::~FWChangeSentry().

{
   assert(m_depth !=0);
   //makes sure that 'changeSignalsAreDone is called if changeSignalsAreComing_ is sent
   bool guard(false);
   if(0 == --m_depth) {
      unsigned int index = 0;
      for(std::set<const FWEventItem*>::iterator itChanges = m_itemChanges.begin();
          itChanges != m_itemChanges.end();
          ++itChanges,++index) {
         if( !guard ) {
            // boost::shared_ptr<FWModelChangeManager> done(this, &sendChangeSignalsAreDone);
            guard = true;
            changeSignalsAreComing_();
         }
         FWItemChangeSignal& signal = m_itemChangeSignals[(*itChanges)->id()];
         //loop over the slots ourself so we can control the behavior in case of a failure
         FWItemChangeSignal::slot_list_type slots = signal.slots();
         for(FWItemChangeSignal::slot_list_type::iterator itSlot=slots.begin(), itEnd = slots.end();
             itSlot != itEnd;
             ++itSlot) {
            try {
               (*itSlot)(*itChanges);
            } catch(const cms::Exception& iE) {
               fwLog(fwlog::kError) <<(*itChanges)->name()<<" had the failure in process FWItemChanged signals\n"<<iE.what()<<std::endl;
            } catch(const std::bad_alloc& iE) {
               std::cerr <<"Ran out of memory while processing "<<(*itChanges)->name()<<std::endl;
               exit(1);
            } catch(const std::exception& iE) {
                fwLog(fwlog::kError) <<(*itChanges)->name()<<" had the failure in process FWItemChanged signals (2) \n"<<iE.what()<<std::endl;
            }
         }
      }
      m_itemChanges.clear();

      for (size_t ci = 0, ce = m_changes.size(), si = 0; ci != ce; ++ci, ++si)
      {
         FWModelIds &changes = m_changes[ci];
         FWModelChangeSignal &signal = m_changeSignals[si];

         if (not changes.empty()) 
         {
            if (!guard) 
            {
               // boost::shared_ptr<FWModelChangeManager> done(this, &sendChangeSignalsAreDone);
               guard = true;
               changeSignalsAreComing_();
            }
            //loop over the slots ourself so we can control the behavior in case of a failure
            FWModelChangeSignal::slot_list_type slots = signal.slots();
            for(FWModelChangeSignal::slot_list_type::iterator itSlot = slots.begin(), itEnd = slots.end();
                itSlot != itEnd;
                ++itSlot) 
            {
               try 
               {
                  (*itSlot)(changes);
               } 
               catch(const cms::Exception& iE) 
               {
                  fwLog(fwlog::kError) << changes.begin()->item()->name()<<" had the failure in process FWModelChangeSignals\n" 
                                      << iE.what() << "\n";
               } 
               catch(const std::bad_alloc& iE) 
               {
                  // GE: if we run out of memory why do we assume that we will be able to print?
                  fwLog(fwlog::kError) << "Ran out of memory while processing " << changes.begin()->item()->name() << "\n";
                  exit(1);
               } 
               catch(const std::exception& iE) 
               {
                  fwLog(fwlog::kError) << changes.begin()->item()->name()
                                       << " had the failure in process FWModelChangeSignals (2)\n"
                                       << iE.what() << "\n";
               }
            }
            changes.clear();
         }
      }
   }
   if (guard) sendChangeSignalsAreDone(this);
}

void FWModelChangeManager::itemsGoingToBeClearedSlot ( void )

Whenever all the items are removed from the FWItemsManager clean also the associated vectors here.

Definition at line 201 of file FWModelChangeManager.cc.

References m_changes, m_changeSignals, m_itemChanges, and m_itemChangeSignals.

Referenced by FWSummaryManager::FWSummaryManager().

{
   m_changes.clear();
   m_changeSignals.clear();

   m_itemChangeSignals.clear();
   m_itemChanges.clear();
}

void FWModelChangeManager::newItemSlot ( FWEventItem * iItem )

Definition at line 184 of file FWModelChangeManager.cc.

References FWEventItem::changed_, FWEventItem::id(), FWEventItem::itemChanged_, m_changes, m_changeSignals, and m_itemChangeSignals.

Referenced by CmsShowMainBase::setup().

{
   assert(0!=iItem);
   assert(iItem->id() == m_changes.size());
   assert(iItem->id() == m_changeSignals.size());
   m_changes.push_back(FWModelIds());
   m_changeSignals.push_back(FWModelChangeSignal());
   m_itemChangeSignals.push_back(FWItemChangeSignal());
   //propagate our signal to the item
   m_changeSignals.back().connect(iItem->changed_);
   m_itemChangeSignals.back().connect(iItem->itemChanged_);
}