VisualRepMap Class Reference

defines a bidirectional (many to many) mapping between TObjects in DataStore and their visual representation. More...

#include <VisualRepMap.h>

Classes
class	DataStoreEveElementMap
	Hide implementation in private class. More...

Public Member Functions
void	select (const TObject *object) const
	Select the representation of the given object.
void	selectOnly (const TEveElement *eveObj) const
	Deselect all other objects.
void	selectRelated (TEveElement *eveObj) const
	Select related objects.
void	clearSelection () const
	Clear existing selection in Eve Browser.
bool	isCurrentlySelecting () const
	are we currently in a select() call?
const TObject *	getDataStoreObject (TEveElement *elem) const
	Get object represented by given visual representation.
TEveElement *	getEveElement (const TObject *obj) const
	Get (first) visual representation of given object.
bool	isVisualized (const TObject *obj)
	Does obj have a visualization?
void	clear ()
	Remove all contents in map.
void	add (const TObject *dataStoreObject, TEveElement *visualRepresentation)
	Generic function to keep track of which objects have which visual representation.
void	addCluster (const TObject *dataStoreObject, TEveCaloData *caloData, int towerID)
	Selection inside TEveCalo* is complicated, use this to keep track of ECL clusters.

Static Public Member Functions
static VisualRepMap *	getInstance ()
	get instance pointer.

Private Member Functions
	VisualRepMap ()
	default constructor
	VisualRepMap (const VisualRepMap &)=delete
	no copy ctor
VisualRepMap &	operator= (const VisualRepMap &)=delete
	no assignment
	~VisualRepMap ()
	destructor

Private Attributes
bool	m_currentlySelecting
	are we currently in a select() call?
DataStoreEveElementMap *	m_dataStoreEveElementMap
	Map DataStore contents in current event with their visual representation.
std::vector< EveTower * >	m_eclTowers
	individual ECL towers (getting them out of TEve is hard).

Detailed Description

defines a bidirectional (many to many) mapping between TObjects in DataStore and their visual representation.

This is used to allow retrieving the original objects for a given TEveElement (to show additional info), and vice versa.

Definition at line 28 of file VisualRepMap.h.

Constructor & Destructor Documentation

VisualRepMap()

VisualRepMap ( )

private

default constructor

Definition at line 42 of file VisualRepMap.cc.

: m_currentlySelecting(false), m_dataStoreEveElementMap(new DataStoreEveElementMap) { }

~VisualRepMap()

~VisualRepMap ( )

private

destructor

Definition at line 44 of file VisualRepMap.cc.

{ clear(); delete m_dataStoreEveElementMap; }

Member Function Documentation

add()

void add	(	const TObject *	dataStoreObject,
		TEveElement *	visualRepresentation
	)

Generic function to keep track of which objects have which visual representation.

Should be called by functions adding TEveElements to the event scene (Hits are currently excluded).

Does not take ownership of given objects, just stores mapping between pointers.

Definition at line 134 of file VisualRepMap.cc.

{
  if (!dataStoreObject) {
    B2ERROR("Trying to insert NULL for object represented by " << visualRepresentation->GetElementName());
    return;
  }
  auto ret = m_dataStoreEveElementMap->insert(DataStoreEveElementMap::value_type(dataStoreObject, visualRepresentation));
  if (!ret.second) {
    B2DEBUG(100, "Failed to insert object represented by " << visualRepresentation->GetElementName() << "! Duplicate?");
  }
}

addCluster()

void addCluster	(	const TObject *	dataStoreObject,
		TEveCaloData *	caloData,
		int	towerID
	)

Selection inside TEveCalo* is complicated, use this to keep track of ECL clusters.

Definition at line 146 of file VisualRepMap.cc.

{
  EveTower* tower = new EveTower(caloData, towerID);
  tower->IncDenyDestroy(); //otherwise the selection wants to own this.
  m_eclTowers.push_back(tower);
 
  add(dataStoreObject, tower);
}

clear()

void clear

(

)

Remove all contents in map.

(call this after each event)

Definition at line 46 of file VisualRepMap.cc.

{
  m_dataStoreEveElementMap->clear();
 
  for (EveTower* t : m_eclTowers)
    delete t;
  m_eclTowers.clear();
}

clearSelection()

void clearSelection

(

)

const

Clear existing selection in Eve Browser.

Definition at line 127 of file VisualRepMap.cc.

{
  if (!gEve)
    return;
  //equivalent to clicking into empty space
  gEve->GetSelection()->UserPickedElement(nullptr);
}

getDataStoreObject()

const TObject * getDataStoreObject

(

TEveElement *

elem

)

const

Get object represented by given visual representation.

(elem is pretty much const, but boost refuses to search for it then. )

Definition at line 56 of file VisualRepMap.cc.

{
  //special handling for TEveCaloData
  if (TEveCaloData* caloData = dynamic_cast<TEveCaloData*>(elem)) {
    const auto& selectedCells = caloData->GetCellsSelected();
    if (selectedCells.empty())
      return nullptr;
    int id = selectedCells[0].fTower;
    for (EveTower* eveTower : m_eclTowers) {
      if (eveTower->getID() == id) {
        elem = eveTower;
        break;
      }
    }
  }
 
  const auto& it = m_dataStoreEveElementMap->right.find(elem);
  if (it != m_dataStoreEveElementMap->right.end())
    return it->second;
  return nullptr;
}

getEveElement()

TEveElement * getEveElement

(

const TObject *

obj

)

const

Get (first) visual representation of given object.

Definition at line 78 of file VisualRepMap.cc.

{
  const auto& it = m_dataStoreEveElementMap->left.find(obj);
  if (it != m_dataStoreEveElementMap->left.end())
    return it->second;
  return nullptr;
}

getInstance()

VisualRepMap * getInstance ( )

static

get instance pointer.

Definition at line 36 of file VisualRepMap.cc.

{
  static VisualRepMap instance;
  return &instance;
}

isCurrentlySelecting()

bool isCurrentlySelecting ( ) const

inline

are we currently in a select() call?

Call this in your selection handler and abort if true. (otherwise we end up recursively calling ourselves).

Definition at line 50 of file VisualRepMap.h.

{ return m_currentlySelecting; }

isVisualized()

bool isVisualized ( const TObject *  obj )

inline

Does obj have a visualization?

Definition at line 62 of file VisualRepMap.h.

{ return getEveElement(obj) != nullptr; }

select()

void select

(

const TObject *

object

)

const

Select the representation of the given object.

Definition at line 87 of file VisualRepMap.cc.

{
  if (m_currentlySelecting)
    B2FATAL("recursive select() call detected. Please check isCurrentlySelecting().");
  m_currentlySelecting = true;
  auto range = m_dataStoreEveElementMap->left.equal_range(object);
  for (auto it = range.first; it != range.second; ++it) {
    TEveElement* elem = it->second;
    if (elem and !gEve->GetSelection()->HasChild(elem)) {
      //select this object in addition to existing selection
      gEve->GetSelection()->UserPickedElement(elem, true);
    }
  }
  m_currentlySelecting = false;
}

selectOnly()

void selectOnly

(

const TEveElement *

eveObj

)

const

Deselect all other objects.

Definition at line 103 of file VisualRepMap.cc.

{
  //copy current selection, then deselect each element
  const std::list<TEveElement*> sel(gEve->GetSelection()->BeginChildren(), gEve->GetSelection()->EndChildren());
  for (TEveElement* el : sel) {
    if (el == eveObj or el->IsA() == EveTower::Class())
      continue;
    gEve->GetSelection()->UserUnPickedElement(el);
  }
}

selectRelated()

void selectRelated

(

TEveElement *

eveObj

)

const

Select related objects.

Definition at line 114 of file VisualRepMap.cc.

{
  const TObject* representedObject = getDataStoreObject(eveObj);
  if (representedObject) {
    //representedObject->Dump();
 
    const RelationVector<TObject>& relatedObjects = DataStore::getRelationsWithObj<TObject>(representedObject, "ALL");
    for (const TObject& relObj : relatedObjects) {
      select(&relObj);
    }
  }
}

Member Data Documentation

m_currentlySelecting

bool m_currentlySelecting

mutableprivate

are we currently in a select() call?

Definition at line 90 of file VisualRepMap.h.

m_dataStoreEveElementMap

DataStoreEveElementMap* m_dataStoreEveElementMap

private

Map DataStore contents in current event with their visual representation.

Definition at line 93 of file VisualRepMap.h.

m_eclTowers

std::vector<EveTower*> m_eclTowers

private

individual ECL towers (getting them out of TEve is hard).

Definition at line 96 of file VisualRepMap.h.

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The documentation for this class was generated from the following files:

• display/include/VisualRepMap.h
• display/src/VisualRepMap.cc