#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 33 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.

47 {

48 }

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 assert(), 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 assert(), 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 assert(), dtNoiseDBValidation_cfg::cerr, changeSignalsAreComing_, cppFunctionSkipper::exception, cmsRelvalreport::exit, fwLog, cmsHarvester::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 assert(), 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_);
 }