Belle2::ObjectInfo Namespace Reference

Return information on objects, for use by InfoWidget, Eve titles (popups) etc. More...

Functions
TString	getName (const TObject *obj)
	human-readable name (e.g.
TString	getIdentifier (const TObject *obj)
	Where is this object in the datastore?
TString	getInfo (const TObject *obj)
	Get object info HTML (e.g.
TString	getTitle (const TObject *obj)
	Get plain text for TEve object titles (shown on mouse-over).
std::pair< std::string, int >	getDataStorePosition (const TObject *obj)
	return entry name & index for arrays, with index = -1 for objects.

Detailed Description

Return information on objects, for use by InfoWidget, Eve titles (popups) etc.

Expands on RelationsObject::getInfoHTML()/getName() by also providing info on e.g. genfit2::Track objects.

Function Documentation

getDataStorePosition()

std::pair< std::string, int > getDataStorePosition

(

const TObject *

obj

)

return entry name & index for arrays, with index = -1 for objects.

Definition at line 78 of file ObjectInfo.cc.

{
  std::string name;
  int index = -1;
  if (const RelationsObject* relObj = dynamic_cast<const RelationsObject*>(obj)) {
    name = relObj->getArrayName();
    index = relObj->getArrayIndex();
  } else {
    //somewhat manual way to find location of object (might not inherit from RelationInterface)
    DataStore::StoreEntry* entry = nullptr;
    DataStore::Instance().findStoreEntry(obj, entry, index);
    if (entry)
      name = entry->name;
  }
  if (index == -1) {
    //this thing might be in a StoreObjPtr...
    for (const auto& pair : DataStore::Instance().getStoreEntryMap(DataStore::c_Event)) {
      if (pair.second.object == obj) {
        name = pair.second.name;
        break;
      }
    }
  }
 
  return std::make_pair(name, index);
}

getIdentifier()

TString getIdentifier

(

const TObject *

obj

)

Where is this object in the datastore?

Definition at line 105 of file ObjectInfo.cc.

{
  auto pos = getDataStorePosition(obj);
  if (pos.second != -1)
    return TString::Format("%s[%d]", pos.first.c_str(), pos.second);
  return pos.first;
}

getInfo()

TString getInfo

(

const TObject *

obj

)

Get object info HTML (e.g.

via RelationsObject::getInfoHTML()).

Definition at line 55 of file ObjectInfo.cc.

{
  if (!obj)
    B2ERROR("ObjectInfo::getInfo() got null?");
  if (auto relObj = dynamic_cast<const RelationsObject*>(obj)) {
    return relObj->getInfoHTML();
  } else if (auto vertex = dynamic_cast<const genfit::GFRaveVertex*>(obj)) {
    return "<b>V</b>=" + HTML::getString(ROOT::Math::XYZVector(vertex->getPos())) + "<br>" +
           TString::Format("pVal=%e", TMath::Prob(vertex->getChi2(), vertex->getNdf()));
  }
  return callStringMethod(obj, "getInfoHTML");
}

getName()

TString getName

(

const TObject *

obj

)

human-readable name (e.g.

pi+)

Definition at line 45 of file ObjectInfo.cc.

{
  if (!obj)
    B2ERROR("ObjectInfo::getName() got null?");
  if (const RelationsObject* relObj = dynamic_cast<const RelationsObject*>(obj)) {
    return relObj->getName();
  }
  return callStringMethod(obj, "getName");
}

getTitle()

TString getTitle

(

const TObject *

obj

)

Get plain text for TEve object titles (shown on mouse-over).

Definition at line 68 of file ObjectInfo.cc.

{
  TString out(getIdentifier(obj));
  const TString& name = getName(obj);
  if (name.Length() != 0)
    out += " - " + name;
 
  return out + "\n" + HTML::htmlToPlainText(getInfo(obj).Data()).c_str();
}