AssociatedObjectHandleBase.cxx

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 

//                                                            //
//  Implementation of class AssociatedObjectHandleBase        //
//                                                            //
//  Author: Thomas H. Kittelmann (Thomas.Kittelmann@cern.ch)  //
//  Initial version: March 2008                               //
//                                                            //
 
#include "VP1TrackSystems/AssociatedObjectHandleBase.h"
#include "VP1TrackSystems/TrackHandleBase.h"
#include "VP1TrackSystems/TrackCollHandleBase.h"
#include "VP1TrackSystems/TrackSysCommonData.h"
#include "VP1TrackSystems/AscObjSelectionManager.h"
#include "VP1TrackSystems/VP1TrackSystem.h"
#include "VP1Base/VP1Msg.h"
 
#include <Inventor/nodes/SoSeparator.h>
#include <optional>
 
//____________________________________________________________________
class AssociatedObjectHandleBase::Imp {
public:
  static int nascobjs;
  Imp() : sep_simple(nullptr),
      sep_detailed(nullptr),
      attachhandle(nullptr)
      //,transform(0) 
      {}
  SoSeparator * sep_simple;
  SoSeparator * sep_detailed;
  AssocObjAttachmentHandle * attachhandle;
 
  //SoTransform * transform;
  void detach() const;
  void attach(AssociatedObjectHandleBase * theclass );
  void ensureShapesBuild(AssociatedObjectHandleBase * theclass );
  void ensureShapesErased(AssociatedObjectHandleBase * theclass );
};
 
int AssociatedObjectHandleBase::Imp::nascobjs = 0;
 
//____________________________________________________________________
void AssociatedObjectHandleBase::Imp::ensureShapesBuild( AssociatedObjectHandleBase * theclass )
{
  if (sep_simple&&sep_detailed)
    return;
  if (!sep_simple&&!sep_detailed) {
    theclass->buildShapes(sep_simple, sep_detailed);
    if (!sep_simple&&!sep_detailed) {
      VP1Msg::messageDebug("AssociatedObjectHandleBase WARNING: Got null shapes! Replacing with simple points.");
      sep_simple = new SoSeparator;//Fixme: Shared point!!!
    }
    if (sep_simple)
      sep_simple->ref();
    if (sep_detailed)
      sep_detailed->ref();
  }
  if (!sep_detailed) {
    sep_detailed = sep_simple;
    sep_detailed->ref();
  }
  if (!sep_simple) {
    sep_simple = sep_detailed;
    sep_simple->ref();
  }
 
  theclass->registerShapes(sep_simple,sep_detailed);
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::Imp::ensureShapesErased(AssociatedObjectHandleBase * theclass )
{
  if (sep_simple||sep_detailed) {
    theclass->unregisterShapes(sep_simple,sep_detailed);
    if (sep_simple) {
      sep_simple->unref();
      sep_simple = nullptr;
    }
    if (sep_detailed) {
      sep_detailed->unref();
      sep_detailed = nullptr;
    }
  }
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::registerShapes(SoSeparator*simple,SoSeparator*detailed)
{
  m_trackHandle->collHandle()->common()->ascObjSelectionManager()->registerAscObj(simple,detailed,this);
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::unregisterShapes(SoSeparator*simple,SoSeparator*detailed)
{
  m_trackHandle->collHandle()->common()->ascObjSelectionManager()->unregisterAscObj(simple,detailed);
}
 
//____________________________________________________________________
TrackSysCommonData * AssociatedObjectHandleBase::common() const
{
  return m_trackHandle->common();
}
 
//____________________________________________________________________
AssociatedObjectHandleBase::AssociatedObjectHandleBase(TrackHandleBase*th)
  : m_d(new Imp),m_trackHandle(th), m_visible(false), m_pickStyle(UNPICKABLE/*better default?*/)
{
  ++Imp::nascobjs;
}
 
//____________________________________________________________________
AssociatedObjectHandleBase::~AssociatedObjectHandleBase()
{
  if (m_d->attachhandle&&m_visible&&m_d->sep_simple&&m_d->sep_detailed) {
    m_d->attachhandle->detachNodes(m_d->sep_simple,m_d->sep_detailed);
  }
  m_d->ensureShapesErased(this );
  delete m_d;
  --Imp::nascobjs;
 
}
 
//____________________________________________________________________
int AssociatedObjectHandleBase::numberOfInstances()
{
  return Imp::nascobjs;
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::setPickable( PICKSTYLE ps )
{
  if (m_pickStyle==ps)
    return;
  m_pickStyle=ps;
 
  //Fixme...
 
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::Imp::detach() const
{
  if (!attachhandle)
    return;//Can't have been attached.
  attachhandle->detachNodes(sep_simple,sep_detailed);
}
 
//____________________________________________________________________
AssocObjAttachmentHandle * AssociatedObjectHandleBase::getAttachmentHandle()
{
  return m_trackHandle->getAttachmentHandle(regionIndex(), lodCrossOverValue());
}
 
 
//____________________________________________________________________
void AssociatedObjectHandleBase::Imp::attach(AssociatedObjectHandleBase * theclass )
{
  if (!attachhandle)
    attachhandle = theclass->getAttachmentHandle();
  attachhandle->attachNodes(sep_simple,sep_detailed,(theclass->pickStyle()!=UNPICKABLE));
}
 
 
//____________________________________________________________________
void AssociatedObjectHandleBase::setVisible( bool b )
{
  if (m_visible==b)
    return;
  m_visible=b;
  if (b) {
    m_d->ensureShapesBuild(this);
    m_d->attach(this);
  } else {
    m_d->detach();
  }
}
 
//____________________________________________________________________
void AssociatedObjectHandleBase::update3DObjects()
{
  VP1Msg::messageVerbose("AssociatedObjectHandleBase update3DObjects.");
  
  if (m_visible) {
    m_d->detach();
    m_d->ensureShapesErased(this);
    m_d->ensureShapesBuild(this);
    m_d->attach(this);
  } else {
    m_d->ensureShapesErased(this);
  }
}
 
//____________________________________________________________________
SoSeparator* AssociatedObjectHandleBase::shapeSimple() const
{
  return m_d->sep_simple;
}
 
//____________________________________________________________________
SoSeparator* AssociatedObjectHandleBase::shapeDetailed() const
{
  return m_d->sep_detailed;
}