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// -*- C++ -*-
//
// Package: Core
// Class : FWInvMassDialog
//
// Implementation:
// [Notes on implementation]
//
// Original Author: Matevz Tadel
// Created: Mon Nov 22 11:05:57 CET 2010
//
// system include files
// user include files
#include "Fireworks/Core/interface/FWInvMassDialog.h"
#include "Fireworks/Core/interface/FWSelectionManager.h"
#include "Fireworks/Core/interface/FWEventItem.h"
#include "DataFormats/Candidate/interface/Candidate.h"
#include "DataFormats/TrackReco/interface/TrackBase.h"
#include "DataFormats/Math/interface/deltaR.h"
#include "TClass.h"
#include "TMath.h"
#include "TGTextView.h"
#include "TGButton.h"
//
// constants, enums and typedefs
//
//
// static data member definitions
//
//
// constructors and destructor
//
FWInvMassDialog::FWInvMassDialog(FWSelectionManager *sm)
: TGMainFrame(gClient->GetRoot(), 470, 240), m_selectionMgr(sm), m_text(nullptr), m_button(nullptr) {
SetWindowName("Invariant Mass Dialog");
SetCleanup(kDeepCleanup);
m_text = new TGTextView(this);
AddFrame(m_text, new TGLayoutHints(kLHintsNormal | kLHintsExpandX | kLHintsExpandY, 1, 1, 1, 1));
m_button = new TGTextButton(this, "Calculate");
AddFrame(m_button, new TGLayoutHints(kLHintsNormal | kLHintsExpandX, 1, 1, 1, 1));
m_button->Connect("Clicked()", "FWInvMassDialog", this, "Calculate()");
Layout();
MapSubwindows();
}
// FWInvMassDialog::FWInvMassDialog(const FWInvMassDialog& rhs)
// {
// // do actual copying here;
// }
FWInvMassDialog::~FWInvMassDialog() {}
void FWInvMassDialog::CloseWindow() { UnmapWindow(); }
//
// assignment operators
//
// const FWInvMassDialog& FWInvMassDialog::operator=(const FWInvMassDialog& rhs)
// {
// //An exception safe implementation is
// FWInvMassDialog temp(rhs);
// swap(rhs);
//
// return *this;
// }
//
// member functions
//
void FWInvMassDialog::beginUpdate() {
m_text->Clear();
m_firstLine = true;
}
void FWInvMassDialog::addLine(const TString &line) {
TGText *txt = m_text->GetText();
if (m_firstLine) {
txt->InsText(TGLongPosition(0, 0), line);
m_firstLine = false;
} else {
txt->InsText(TGLongPosition(0, txt->RowCount()), line);
}
}
void FWInvMassDialog::endUpdate() { m_text->Update(); }
void FWInvMassDialog::Calculate() {
const std::set<FWModelId> &sted = m_selectionMgr->selected();
beginUpdate();
addLine(TString::Format(" %d items in selection", (int)sted.size()));
addLine("");
addLine("--------------------------------------------------+--------------");
addLine(" px py pz pT | Collection");
addLine("--------------------------------------------------+--------------");
TClass *rc_class = TClass::GetClass(typeid(reco::Candidate));
TClass *rtb_class = TClass::GetClass(typeid(reco::TrackBase));
math::XYZVector sum;
double sum_len = 0;
double sum_len_xy = 0;
math::XYZVector first, second;
int n = 0;
for (std::set<FWModelId>::const_iterator i = sted.begin(); i != sted.end(); ++i, ++n) {
TString line;
TClass *model_class = const_cast<TClass *>(i->item()->modelType());
void *model_data = const_cast<void *>(i->item()->modelData(i->index()));
math::XYZVector v;
bool ok_p = false;
reco::Candidate *rc = reinterpret_cast<reco::Candidate *>(model_class->DynamicCast(rc_class, model_data));
if (rc != nullptr) {
ok_p = true;
v.SetXYZ(rc->px(), rc->py(), rc->pz());
} else {
reco::TrackBase *rtb = reinterpret_cast<reco::TrackBase *>(model_class->DynamicCast(rtb_class, model_data));
if (rtb != nullptr) {
ok_p = true;
v.SetXYZ(rtb->px(), rtb->py(), rtb->pz());
}
}
if (ok_p) {
sum += v;
sum_len += TMath::Sqrt(v.mag2());
sum_len_xy += TMath::Sqrt(v.perp2());
line = TString::Format(" %+10.3f %+10.3f %+10.3f %10.3f", v.x(), v.y(), v.z(), TMath::Sqrt(v.perp2()));
} else {
line = TString::Format(" -------- not a Candidate or TrackBase --------");
}
line += TString::Format(" | %s[%d]", i->item()->name().c_str(), i->index());
addLine(line);
if (n == 0)
first = v;
else if (n == 1)
second = v;
}
addLine("--------------------------------------------------+--------------");
addLine(TString::Format(
" %+10.3f %+10.3f %+10.3f %10.3f | Sum", sum.x(), sum.y(), sum.z(), TMath::Sqrt(sum.perp2())));
addLine("");
addLine(TString::Format("m = %10.3f", TMath::Sqrt(TMath::Max(0.0, sum_len * sum_len - sum.mag2()))));
addLine(TString::Format("mT = %10.3f", TMath::Sqrt(TMath::Max(0.0, sum_len_xy * sum_len_xy - sum.perp2()))));
addLine(TString::Format("HT = %10.3f", sum_len_xy));
if (n == 2) {
addLine(TString::Format("deltaPhi = %+6.4f", deltaPhi(first.Phi(), second.Phi())));
addLine(TString::Format("deltaEta = %+6.4f", first.Eta() - second.Eta()));
addLine(TString::Format("deltaR = % 6.4f", deltaR(first.Eta(), first.Phi(), second.Eta(), second.Phi())));
}
endUpdate();
}
//
// const member functions
//
//
// static member functions
//
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