/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/Fireworks/Core/src/FWInteractionList.cc

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// -*- C++ -*-
//
// Package:     Core
// Class  :     FWInteractionList
// 
// Implementation:
//     [Notes on implementation]
//
// Original Author:  Alja Mrak-Tadel
//         Created:  Mon Apr 19 12:48:18 CEST 2010
// $Id: FWInteractionList.cc,v 1.15 2012/09/21 09:26:26 eulisse Exp $
//

// user include files
#include <cassert>
#include "TEveCompound.h"
#include "TEveManager.h"
#include "TEveSelection.h"

#include "Fireworks/Core/interface/FWInteractionList.h"
#include "Fireworks/Core/interface/FWEventItem.h"
#include "Fireworks/Core/interface/FWModelIdFromEveSelector.h"
#include "Fireworks/Core/interface/FWModelId.h"



//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
FWInteractionList::FWInteractionList(const FWEventItem* item)
   : m_item(item)
{}

// FWInteractionList::FWInteractionList(const FWInteractionList& rhs)
// {
//    // do actual copying here;
// }

FWInteractionList::~FWInteractionList()
{
   for ( std::vector<TEveCompound*>::iterator i = m_compounds.begin(); i != m_compounds.end(); ++i)
   {
      // Interaction are created only in the standard use case, where user data is FWFromEveSelectorBase.
      // This is defined with return value of virtual function FWPRoxyBuilderBase::willHandleInteraction().

      if ((*i)->GetUserData())
         delete reinterpret_cast<FWFromEveSelectorBase*>((*i)->GetUserData());

      (*i)->RemoveElements();
      (*i)->DecDenyDestroy();
   }
}


//
// member functions
//

void
FWInteractionList::added(TEveElement* el, unsigned int idx)
{

   // In the case a compound for the given index already exists, just add 
   // the TEveElement to it, otherwise create a new one.
   if (idx < m_compounds.size())
   {
      m_compounds[idx]->AddElement(el);
      return;
   }

   // Prepare name for the tooltip on mouseover in GL viewer.Value of
   // tooltip is TEveElement::fTitle
   std::string name = m_item->modelName(idx);
   if (m_item->haveInterestingValue())
      name += m_item->modelInterestingValueAsString(idx);

   TEveCompound* c = new TEveCompound(name.c_str(), name.c_str());
   c->EnableListElements(m_item->defaultDisplayProperties().isVisible());
   c->SetMainColor(m_item->defaultDisplayProperties().color());
   c->SetMainTransparency(m_item->defaultDisplayProperties().transparency());
   
   // Set flags to propagat attributes.
   c->CSCImplySelectAllChildren();
   c->CSCApplyMainColorToAllChildren();
   c->CSCApplyMainTransparencyToAllChildren();

   // TEveElement is auto-destroyed if is is not added to any parent. Alternative could 
   // be to use increase/decrease reference count.
   c->IncDenyDestroy();
   //  FWModelIdFromEveSelector is needed for interaction from Eve to Fireworks.
   //  FWEveViewManager gets ROOT signals with selected objects (TEveCompound)
   //  then cals doSelect() on the compound's user data.
   c->SetUserData(new FWModelIdFromEveSelector(FWModelId(m_item, idx)));
   // Order does not matter. What is added to TEveCompound is not concern of interaction list.
   // Interaction list operates ony with the compound.
   m_compounds.push_back(c);
   m_compounds.back()->AddElement(el); 
   // printf("%s[%d] FWInteractionList::added has childern %d\n",m_item->name().c_str(), idx,  m_compounds[idx]->NumChildren()); 
}

 
void
FWInteractionList::modelChanges(const FWModelIds& iIds)
{ 
   assert (m_compounds.size() >= m_item->size());

   for (std::set<FWModelId>::const_iterator it = iIds.begin(); it != iIds.end(); ++it)
   {
      const FWEventItem::ModelInfo& info = m_item->modelInfo(it->index());
      // std::cout <<" FWInteractionList::modelChanges  color "<< info.displayProperties().color()  << "(*it).index() " <<(*it).index() << "  " << m_item->name() <<std::endl;
      const FWDisplayProperties &p = info.displayProperties();
      TEveElement* comp = m_compounds[it->index()];
      comp->EnableListElements(p.isVisible(), p.isVisible());
      comp->SetMainColor(p.color());
      comp->SetMainTransparency(p.transparency());

      if (info.isSelected())
      {
         if (comp->GetSelectedLevel() != 1)
            gEve->GetSelection()->AddElement(comp);
      }
      else
      {
         if (comp->GetSelectedLevel() == 1)
            gEve->GetSelection()->RemoveElement(comp);
      }
   }
}

void
FWInteractionList::itemChanged()
{   for (size_t i = 0, e = m_item->size(); i < e; ++i)
   {
       // Assert for sizes is not necessary, becuse it is already in a 
      // proxy builder.
      TEveElement* comp = m_compounds[i];
      
      std::string name = m_item->modelName(i);
      if (m_item->haveInterestingValue())
         name += m_item->modelInterestingValueAsString(i);

      comp->SetElementTitle(name.c_str());

      const FWEventItem::ModelInfo& info = m_item->modelInfo(i);
      const FWDisplayProperties &p = info.displayProperties();

      if (p.isVisible() != comp->GetRnrSelf())
         comp->EnableListElements(p.isVisible(), p.isVisible());

      if (p.color() != comp->GetMainColor())
         comp->SetMainColor(p.color());

      if (p.transparency() != comp->GetMainTransparency())
         comp->SetMainTransparency(p.transparency());

   }
}