JetCollectionSettingsButton.cxx

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
// Local
#include "VP1Base/VP1ColorSelectButton.h"
#include "VP1AODSystems/JetCollectionSettingsButton.h"
// UIs
#include "ui_periparticlecollectionsettings_form.h"
#include "ui_jet_settings_display_form.h"
 
//VP1
#include "VP1Base/VP1QtInventorUtils.h"
#include "VP1Base/VP1Serialise.h"
#include "VP1Base/VP1Deserialise.h"
#include "VP1Base/VP1Msg.h"
 
//Coin3D
#include "Inventor/nodes/SoDrawStyle.h"
#include "Inventor/nodes/SoLightModel.h"
#include "Inventor/nodes/SoMaterial.h"
 
// Qt
#include <QTimer>
#include <QByteArray>
#include <QBuffer>
#include <QDataStream>
#include <QMouseEvent>
#include <QDragEnterEvent>
#include <QDropEvent>
#include <QShortcut>
#include <QMimeData>
#include <QDrag>
 
// Misc
#include <iostream>
 
//____________________________________________________________________
class JetCollectionSettingsButton::Imp {
public:
 
//  Imp():theclass(0),editwindow(0),matButton(0), trackDrawStyle(0), trackLightModel(0){}
    Imp():theclass(0),editwindow(0),matButton(0), last_scale(0.0), last_useDefaultCuts{},
    last_randomJetColours{}, last_useMaxR{}, last_maxR(0.0), last_bTaggingEnabled{},
    last_bTaggingCut(0.0),last_bTaggingRenderingSkin{}, last_bTaggingRenderingMaterial{},
    m_jetMaterialDefault(nullptr), materialFallback(nullptr),
    dim(0) {}
 
    // the main class
    JetCollectionSettingsButton * theclass;
 
    // setup the UI
    QWidget * editwindow; // the main window
    Ui::IParticleCollectionSettingsForm editwindow_ui{}; // the common main UI window
    Ui::JetSysSettingsDisplayForm ui_disp{}; // the custom jet cuts
 
    VP1MaterialButton* matButton;// main collection colour
//  VP1MaterialButton* defaultParametersMatButton;
 
//  QList<VP1MaterialButton*> parameterTypeMatButtons;// enum used to access the specific button
 
//  SoDrawStyle * trackDrawStyle;
//  SoLightModel * trackLightModel;
 
    //GUI - last values
    VP1Interval last_cutAllowedPt;
    VP1Interval last_cutAllowedP;
    VP1Interval last_cutAllowedEta;
    QList<VP1Interval> last_cutAllowedPhi;
    double last_scale;
    bool last_useDefaultCuts;
    bool last_randomJetColours;
    bool last_useMaxR;
    double last_maxR;
//  double last_trackTubeRadius;
//  QList<unsigned> last_cutRequiredNHits;
//  bool last_cutOnlyVertexAssocTracks;
 
    // GUI b-tagging
    bool last_bTaggingEnabled;
    QString last_bTaggingTagger;
    QString last_bTaggingSkin;
    double last_bTaggingCut;
//  SoMaterial* last_bTaggingMaterial; // not needed...
    bool last_bTaggingRenderingSkin;
    bool last_bTaggingRenderingMaterial;
 
    // jet material
    SoMaterial* m_jetMaterialDefault;
 
    // b-tagging material
    SoMaterial * materialFallback;
 
    // material functions
    SoMaterial * getMat(VP1MaterialButton*) const;
    SoMaterial * createMaterial(int r, int g, int b) const;
    SoMaterial * createMaterial(int r, int g, int b, float brightness, float transparency) const;
 
 
    int dim;
    QString name;
    QPoint dragStartPosition;
 
    void initEditWindow();
};
 
 
//____________________________________________________________________
SoMaterial * JetCollectionSettingsButton::Imp::createMaterial(int r, int g, int b) const
{
  return VP1MaterialButton::createMaterial(r/255.0,g/255.0,b/255.0,0.2/*brightness*/);
}
//____________________________________________________________________
SoMaterial * JetCollectionSettingsButton::Imp::createMaterial(int r, int g, int b,
                                                              float brightness,
                                                              float transparency) const
{
  return VP1MaterialButton::createMaterial(r/255.0,g/255.0,b/255.0, brightness, transparency);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::Imp::initEditWindow()
{
    if (editwindow)
        return;
    theclass->messageVerbose("Initialising material editor dialog");
 
    // create a parent widget
    editwindow = new QWidget(0,Qt::WindowStaysOnTopHint); // parent widget
 
 
 
    // init the different UIs
    editwindow_ui.setupUi(editwindow); //IParticleCollectionSettingsForm
    auto jetsettings = new QWidget();
    editwindow_ui.verticalLayout_additional_widgets->addWidget(jetsettings);
    ui_disp.setupUi(jetsettings);  //JetSysSettingsDisplayForm
 
    // change labels to match jets' nomenclature
    editwindow_ui.groupBox_cuts_momentum->setTitle("Energy cuts");
    editwindow_ui.checkBox_cut_minpt->setText("Min Energy");
    editwindow_ui.checkBox_cut_maxpt->setText("Max Energy");
    editwindow_ui.comboBox_momtype->setItemText(0, "Et");
    editwindow_ui.comboBox_momtype->setItemText(1, "E");
    // change initial values to match jets' typical values
    editwindow_ui.doubleSpinBox_cut_minpt_gev->setValue(10.00);
    editwindow_ui.doubleSpinBox_cut_maxpt_gev->setValue(100.00);
 
    // get a handle on the material button
    matButton = editwindow_ui.pushButton_matButton;
 
    // compose UI: adding to the default GUI the "display" custom cuts for jets
    editwindow_ui.verticalLayout_additional_widgets->layout()->addWidget( ui_disp.groupBox_jet_display );
 
    // set b-tagging taggers
    ui_disp.bTaggingComboBox->clear(); // remove all taggers defined in the .ui file
 
    QStringList bTagList;
    //bTagList << "MV2c20" << "MV2c10" << "MV1" << "JetFitterCombNN_pb" << "JetFitterCombNN_pc" << "JetFitterCombNN_pu";
    //bTagList << "MV2c20" << "MV2c10" << "MV2c00" << "MV1" << "JetFitterCombNN_pb" << "JetFitterCombNN_pc" << "JetFitterCombNN_pu"; // the JetFitter helpers have been removed in xAODBTagging-00-00-35
//  bTagList << "MV2c20" << "MV2c10" << "MV2c00" << "MV1"; // (cfr. SVN changesets 797165 + 801102)
    bTagList << "MV2c20" << "MV2c10" << "MV2c00"; // 28 Sep 2017
    ui_disp.bTaggingComboBox->insertItems(0, bTagList);
 
    // set b-tagging "Material" checked by default ("Skin" will be optional)
    ui_disp.radioButton_material->setChecked(true);
 
    // x-y projection
    ui_disp.groupBox_IDprojection->setEnabled(false); // TODO: check what it did in previous versions and fix it!
 
    // when creating a new controller, check if b-tagging checkbox is enabled,
    // for example from a config file or from a drag&drop from another collection
    if (ui_disp.bTaggingCheckBox->isChecked())
        theclass->possibleChange_bTaggingEnabled(true); // init the b-tagging toolbox as active
    else
        theclass->possibleChange_bTaggingEnabled(false); // init the b-tagging toolbox as not-active
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::setMaterialText(const QString& t)
{
    VP1Msg::messageVerbose("JetCollectionSettingsButton::setMaterialText()");
    if (m_d->editwindow)
        m_d->editwindow->setWindowTitle(t);
    setToolTip(t);
}
 
 
 
//____________________________________________________________________
double JetCollectionSettingsButton::lengthOf100GeV()
{
    double val = m_d->ui_disp.doubleSpinBox_lengthOf100GeV->value();
    bool isEt = m_d->ui_disp.comboBox_energytype->currentText()=="Et";
    val = val * ( isEt ? 1:-1);
    VP1Msg::messageVerbose("JetCollectionSettingsButton::lengthOf100GeV() - value: " + QString::number(val));
    return val;
}
 
//____________________________________________________________________
double JetCollectionSettingsButton::maxR()
{
    double val = m_d->ui_disp.checkBox_maxR->isChecked() ? (m_d->ui_disp.doubleSpinBox_maxR->value() ) : -1; //m_d->ui_disp.doubleSpinBox_maxR->value();
    VP1Msg::messageVerbose("JetCollectionSettingsButton::maxR() - value: " + QString::number(val));
    return val;
}
 
 
//____________________________________________________________________
double JetCollectionSettingsButton::bTaggingCut() const {
  return m_d->ui_disp.bTaggingSpinBox->value();
}
//____________________________________________________________________
QString JetCollectionSettingsButton::bTaggingTagger() const {
  return m_d->ui_disp.bTaggingComboBox->currentText();
}
//____________________________________________________________________
QString JetCollectionSettingsButton::bTaggingSkin() const {
  return m_d->ui_disp.skinsComboBox->currentText();
}
//____________________________________________________________________
SoMaterial* JetCollectionSettingsButton::bTaggingMaterial() const {
  return getMaterial(m_d->ui_disp.matButton_btaggedJets);
}
//____________________________________________________________________
bool JetCollectionSettingsButton::bTaggingEnabled() const {
  return m_d->ui_disp.bTaggingCheckBox->isChecked();
}
//____________________________________________________________________
bool JetCollectionSettingsButton::bTaggingRenderingSkin() const {
  return m_d->ui_disp.radioButton_skins->isChecked();
}
//____________________________________________________________________
bool JetCollectionSettingsButton::bTaggingRenderingMaterial() const {
  return m_d->ui_disp.radioButton_material->isChecked();
}
 
//____________________________________________________________________
bool JetCollectionSettingsButton::is_bTaggingSkinEnabled() const
{
    return m_d->ui_disp.radioButton_skins->isChecked();
}
 
//____________________________________________________________________
bool JetCollectionSettingsButton::is_bTaggingMaterialEnabled() const
{
    return m_d->ui_disp.radioButton_material->isChecked();
}
 
 
 
 
 
//____________________________________________________________________
JetCollectionSettingsButton::JetCollectionSettingsButton(QWidget * parent,int dim, QString name)
: VP1CollectionSettingsButtonBase(parent,0), m_d(new Imp)
//: VP1CollectionSettingsButtonBase(parent,0,"VP1MaterialButton"), m_d(new Imp)
{
    m_d->dim = dim;
    m_d->name = name;
 
    m_d->theclass = this;
    m_d->initEditWindow();
 
 
    //  Setup connections which monitor changes in the controller so that we may emit signals as appropriate:  //
 
 
 
//  //Draw Styles / Complexity:
//  VP1QtInventorUtils::setLimitsLineWidthSlider(m_d->editwindow_ui.horizontalSlider_trackWidth);
//  VP1QtInventorUtils::setValueLineWidthSlider(m_d->editwindow_ui.horizontalSlider_trackWidth,1.0);
 
//  m_d->trackDrawStyle = new SoDrawStyle;
//  m_d->trackDrawStyle->setName("JetDrawStyle");
//  m_d->trackDrawStyle->pointSize=5.0;
//  m_d->trackDrawStyle->ref();
//  updateTrackDrawStyle();
//  connect(m_d->editwindow_ui.horizontalSlider_trackWidth,SIGNAL(valueChanged(int)),this,SLOT(updateTrackDrawStyle()));
 
//  m_d->trackLightModel = new SoLightModel;
//  m_d->trackLightModel->setName("JetLightModel");
//  m_d->trackLightModel->ref();
//  updateTrackLightModel(false);
//  connect(m_d->editwindow_ui.checkBox_tracksUseBaseLightModel,SIGNAL(toggled(bool)),this,SLOT(updateTrackLightModel(bool)));
//
//  m_d->last_trackTubeRadius=trackTubeRadius();
//  connect(m_d->editwindow_ui.checkBox_trackTubes,SIGNAL(toggled(bool)),this,SLOT(updateTrackTubeRadius()));
//  connect(m_d->editwindow_ui.doubleSpinBox_trackTubesRadiusMM,SIGNAL(valueChanged(double)),this,SLOT(updateTrackTubeRadius()));
//
//  connect(m_d->editwindow_ui.checkBox_hideactualpaths,SIGNAL(toggled(bool)),this,SLOT(updateHideActualTrackPath(bool)));
 
//  // -> parameters
//  connect(m_d->editwindow_ui.checkBox_showparameters,SIGNAL(toggled(bool)),this,SLOT(possibleChange_showParameters()));
//  connect(m_d->editwindow_ui.checkBox_parameters_colourByType,SIGNAL(toggled(bool)),this,SLOT(possibleChange_parameterColours()));
 
 
    // -> scale
    connect(m_d->ui_disp.doubleSpinBox_lengthOf100GeV,SIGNAL(valueChanged(double)),this,SLOT(possibleChange_scale()));
    connect(m_d->ui_disp.comboBox_energytype,SIGNAL(currentIndexChanged(int)),this,SLOT(possibleChange_scale()));
 
    // -> cutAllowedP/Pt
    connect(m_d->editwindow_ui.checkBox_cut_minpt,SIGNAL(toggled(bool)),this,SLOT(possibleChange_cutAllowedPt()));
    connect(m_d->editwindow_ui.checkBox_cut_maxpt,SIGNAL(toggled(bool)),this,SLOT(possibleChange_cutAllowedPt()));
    connect(m_d->editwindow_ui.doubleSpinBox_cut_minpt_gev,SIGNAL(valueChanged(double)),this,SLOT(possibleChange_cutAllowedPt()));
    connect(m_d->editwindow_ui.doubleSpinBox_cut_maxpt_gev,SIGNAL(valueChanged(double)),this,SLOT(possibleChange_cutAllowedPt()));
    connect(m_d->editwindow_ui.checkBox_cut_minpt,SIGNAL(toggled(bool)),this,SLOT(possibleChange_cutAllowedPt()));
    connect(m_d->editwindow_ui.comboBox_momtype,SIGNAL(currentIndexChanged(int)),this,SLOT(possibleChange_cutAllowedPt()));
 
    // -> cutAllowedEta
    connect(m_d->editwindow_ui.etaPhiCutWidget,SIGNAL(allowedEtaChanged(const VP1Interval&)),this,SLOT(possibleChange_cutAllowedEta()));
 
    // -> cutAllowedPhi
    connect(m_d->editwindow_ui.etaPhiCutWidget,SIGNAL(allowedPhiChanged(const QList<VP1Interval>&)),this,SLOT(possibleChange_cutAllowedPhi()));
 
    // random colors
    connect(m_d->ui_disp.checkBox_randomColours, SIGNAL(toggled(bool)), this, SLOT(enableRandomColours(bool)));
    connect(m_d->ui_disp.checkBox_randomColours, SIGNAL(toggled(bool)), this, SLOT(possibleChange_randomJetColours()));
    connect(m_d->ui_disp.pushButton_colourbyrandom_rerandomise,SIGNAL(clicked()),this,SLOT(emitRerandomise()));
    this->enableRandomColours(false);
 
    // maxR
    connect(m_d->ui_disp.checkBox_maxR, SIGNAL(toggled(bool)), this, SLOT(enableMaxR(bool)));
    connect(m_d->ui_disp.checkBox_maxR, SIGNAL(toggled(bool)), this, SLOT(possibleChange_maxR()));
    connect(m_d->ui_disp.doubleSpinBox_maxR, SIGNAL(valueChanged(double)), this, SLOT(possibleChange_maxR()));
    this->enableMaxR(false); // init
 
    // BTagging
    connect(m_d->ui_disp.bTaggingCheckBox, SIGNAL(toggled(bool)), this, SLOT(possibleChange_bTaggingEnabled(bool)) );
 
    connect(m_d->ui_disp.bTaggingComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(possibleChange_bTaggingTagger()) );
 
    connect(m_d->ui_disp.bTaggingSpinBox, SIGNAL(valueChanged(double)), this, SLOT(possibleChange_bTaggingCut()) );
 
    connect(m_d->ui_disp.radioButton_material, SIGNAL(toggled(bool)), this, SLOT(possibleChange_bTaggingRenderingMaterial(bool)) );
 
    // not needed...
    //connect(m_d->ui_disp.matButton_btaggedJets, SIGNAL(lastAppliedChanged()), this, SLOT(possibleChange_bTaggingMaterial()) );
 
    connect(m_d->ui_disp.radioButton_skins, SIGNAL(toggled(bool)), this, SLOT(possibleChange_bTaggingRenderingSkin(bool)) );
 
 
    // Material button
    connect(this,SIGNAL(clicked()),this,SLOT(showEditMaterialDialog()));
    connect(m_d->editwindow_ui.pushButton_close,SIGNAL(clicked()),this,SLOT(showEditMaterialDialog()));
    connect(m_d->matButton,SIGNAL(lastAppliedChanged()),this,SLOT(updateButton()));
    connect(m_d->matButton,SIGNAL(lastAppliedChanged()),this,SIGNAL(lastAppliedChanged()));
    setAcceptDrops(true);
 
    QTimer::singleShot(0, this, SLOT(updateButton()));
 
    //  Custom Materials  //
 
 
    // create default material for b-jets
    m_d->materialFallback = m_d->createMaterial(116,255,228, 0.2, 0.3); // light greenish-blue (R,G,B, brightness, transparency)
    m_d->materialFallback->ref();
 
 
 
    // init material for b-tagged jet
    m_d->ui_disp.matButton_btaggedJets->setMaterial(m_d->materialFallback);
 
//  updateButton();
 
 
}
 
// QWidget& JetCollectionSettingsButton::editWindow() {
//   if (!m_d->editwindow)
//     initEditWindow();
//   return *(m_d->editwindow);
// } 
JetCollectionSettingsButton::~JetCollectionSettingsButton()
{
    delete m_d->editwindow;
//  m_d->trackDrawStyle->unref();
//  m_d->trackLightModel->unref();
    delete m_d;
}
 
void JetCollectionSettingsButton::updateButton()
{
    if (objectName().isEmpty())
        setObjectName("JetCollectionSettingsButton");
    messageVerbose("jet - setColButtonProperties: color=" + str(m_d->matButton->lastAppliedDiffuseColour()));
    VP1ColorSelectButton::setColButtonProperties(this,m_d->matButton->lastAppliedDiffuseColour(),m_d->dim);
}
 
void JetCollectionSettingsButton::setDimension(int dim)
{
    if (m_d->dim == dim)
        return;
    m_d->dim = dim;
    updateButton();
}
 
void JetCollectionSettingsButton::showEditMaterialDialog()
{
    if (!m_d->editwindow)
        m_d->initEditWindow();
 
    if (m_d->editwindow->isHidden())
        m_d->editwindow->show();
    else
        m_d->editwindow->hide();
}
 
bool JetCollectionSettingsButton::setMaterial(SoMaterial*mat)
{  
    // std::cout<<"JetCollectionSettingsButton::setMaterial with mat="<<mat<<std::endl;
    if (!m_d->matButton) m_d->initEditWindow();
    m_d->matButton->setMaterial(mat);
    return true;
}
 
VP1MaterialButton* JetCollectionSettingsButton::getMaterialButton() const
{
    return m_d->matButton;
}
 
void JetCollectionSettingsButton::copyValuesFromMaterial(SoMaterial*mat)
{
    if (!m_d->matButton) m_d->initEditWindow();
    m_d->matButton->setMaterial(mat);
}
double JetCollectionSettingsButton::lastAppliedTransparency() const
{
    if (!m_d->matButton) m_d->initEditWindow();
    return m_d->matButton->lastAppliedTransparency();
}
double JetCollectionSettingsButton::lastAppliedShininess() const
{
    if (!m_d->matButton) m_d->initEditWindow();
    return m_d->matButton->lastAppliedShininess();
}
double JetCollectionSettingsButton::lastAppliedBrightness() const
{
    if (!m_d->matButton) m_d->initEditWindow();
    return m_d->matButton->lastAppliedBrightness();
}
 
//double JetCollectionSettingsButton::trackTubeRadius() const
//{
//  return m_d->editwindow_ui.checkBox_trackTubes->isChecked() ?
//          m_d->editwindow_ui.doubleSpinBox_trackTubesRadiusMM->value() : 0.0;
//}
//
//void JetCollectionSettingsButton::updateTrackTubeRadius()
//{
//  if (m_d->last_trackTubeRadius==trackTubeRadius()) return;
//  m_d->last_trackTubeRadius=trackTubeRadius();
//  messageVerbose("TrackTubeRadius changed to "+str(m_d->last_trackTubeRadius));
//  emit trackTubeRadiusChanged(m_d->last_trackTubeRadius);
//  return;
//}
//
//void JetCollectionSettingsButton::updateTrackDrawStyle()
//{
//  double val = VP1QtInventorUtils::getValueLineWidthSlider(m_d->editwindow_ui.horizontalSlider_trackWidth);
//  if (m_d->trackDrawStyle->lineWidth.getValue()!=val)
//      m_d->trackDrawStyle->lineWidth = val;
//}
//
//void JetCollectionSettingsButton::updateTrackLightModel(bool base)
//{
//  if (m_d->trackLightModel->model.getValue()!=(base?SoLightModel::BASE_COLOR:SoLightModel::PHONG)) {
//      messageVerbose("TrackLightModel changed (base = "+str(base));
//      if (base)
//          m_d->trackLightModel->model.setValue(SoLightModel::BASE_COLOR);
//      else
//          m_d->trackLightModel->model.setValue(SoLightModel::PHONG);
//  }
//}
//
//void JetCollectionSettingsButton::updateHideActualTrackPath(bool hide)
//{
//  emit hideActualTrackPathChanged(hide);
//}
//
//
//SoDrawStyle * JetCollectionSettingsButton::trackDrawStyle() const
//{
//  return m_d->trackDrawStyle;
//}
//
//SoLightModel * JetCollectionSettingsButton::trackLightModel() const
//{
//  return m_d->trackLightModel;
//}
//
//SoMaterial* JetCollectionSettingsButton::defaultParameterMaterial() const {
//  return m_d->defaultParametersMatButton->handledMaterials().at(0);// Only have one material per button.
//}
//SoMaterial* JetCollectionSettingsButton::parameterMaterial( xAOD::ParameterPosition position) const{
//  return (m_d->parameterTypeMatButtons.at(static_cast<unsigned int>(position)))->handledMaterials().at(0);// Only have one material per button.
//}
 
// void setDefaultParameterMaterial(SoMaterial* mat) {    
//     // m_d->defaultParametersMatButton->setObjectName("matButton_default");
//     // m_d->defaultParametersMatButton->setToolTip(matButtonToolTip());
//     m_d->defaultParametersMatButton->setMaterial(mat);
//     // connect(m_d->matButton,SIGNAL(lastAppliedChanged()),this,SLOT(possibleChangeMatTranspOrBrightness()));
// }
// 
// void JetCollectionSettingsButton::setParameterMaterial(SoMaterial*, xAOD::ParameterPosition){
//   // FIXME!
// }
 
//bool  JetCollectionSettingsButton::hideActualTrackPath() const
//{
//  if (!m_d->editwindow)
//      m_d->initEditWindow();
//  return m_d->editwindow_ui.checkBox_hideactualpaths->isChecked();
//}
//
//bool JetCollectionSettingsButton::showParameters() const
//{
//  if (!m_d->editwindow)
//      m_d->initEditWindow();
//  messageVerbose("JetCollectionSettingsButton::showParameters returning  "+str(m_d->editwindow_ui.checkBox_showparameters->isChecked()));
//  return m_d->editwindow_ui.checkBox_showparameters->isChecked();
//}
//
//bool JetCollectionSettingsButton::colourParametersByType() const
//{
//  if (!m_d->editwindow)
//      m_d->initEditWindow();
//  messageVerbose("JetCollectionSettingsButton::colourParametersByType returning  "+str(m_d->editwindow_ui.checkBox_parameters_colourByType->isChecked()));
//  return m_d->editwindow_ui.checkBox_parameters_colourByType->isChecked();
//}
//
//
//bool  JetCollectionSettingsButton::cutOnlyVertexAssocTracks() const
//{
//  if (!m_d->editwindow)
//      m_d->initEditWindow();
//  return m_d->editwindow_ui.checkBox_vertexAssociated->isChecked();
//}
 
//____________________________________________________________________
void JetCollectionSettingsButton::mousePressEvent(QMouseEvent *event)
{
    if (event->button() == Qt::LeftButton)
        m_d->dragStartPosition = event->pos();
    QPushButton::mousePressEvent(event);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::dragEnterEvent(QDragEnterEvent *event)
{
    if (event->source()!=this && event->mimeData()->hasFormat("vp1/material"))
        event->acceptProposedAction();
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::mouseMoveEvent(QMouseEvent *event)
{
    if (!(event->buttons() & Qt::LeftButton))
        return;
    if ((event->pos() - m_d->dragStartPosition).manhattanLength()
            < QApplication::startDragDistance())
        return;
 
    QDrag *drag = new QDrag(this);
    QMimeData *mimeData = new QMimeData;
 
    // For dragging state onto other material buttons: //
 
    QByteArray byteArray = saveState();
 
    // buffer.close();
    mimeData->setData("vp1/material", byteArray);
 
    // ////////////////////////////////////////////////////////
    // //  For dragging c++ code for defining this material  //
    // //  into e.g. an editor:                              //
    // ////////////////////////////////////////////////////////
    //
    // QString s = "SoMaterial * mat = new SoMaterial;\n";
    // QString str_ambient = m_d->toSbColTxt(m_d->lastapplied_ambient);
    // if (str_ambient!="SbColor(0.2,0.2,0.2)")
    //   s += "mat->ambientColor.setValue("+str_ambient+");\n";
    // QString str_diffuse = m_d->toSbColTxt(m_d->lastapplied_diffuse);
    // if (str_diffuse!="SbColor(0.8,0.8,0.8)")
    //   s += "mat->diffuseColor.setValue("+str_diffuse+");\n";
    // QString str_specular = m_d->toSbColTxt(m_d->lastapplied_specular);
    // if (str_specular!="SbColor(0,0,0)")
    //   s += "mat->specularColor.setValue("+str_specular+");\n";
    // QString str_emissive = m_d->toSbColTxt(m_d->lastapplied_emissive);
    // if (str_emissive!="SbColor(0,0,0)")
    //   s += "mat->emissiveColor.setValue("+str_emissive+");\n";
    // QString str_shininess = m_d->printFloat(m_d->lastapplied_shininess/100.0);
    // if (str_shininess!="0.2")
    //   s +=     "mat->shininess.setValue("+str_shininess+");\n";
    // QString str_transparency = m_d->printFloat(m_d->lastapplied_transparency/100.0);
    // if (str_transparency!="0")
    //   s +=     "mat->transparency.setValue("+str_transparency+");\n";
    // mimeData->setText(s);
 
    //Execute drag:
    drag->setMimeData(mimeData);//drag assumes ownership of mimeData
    drag->exec(Qt::CopyAction | Qt::MoveAction);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::dropEvent(QDropEvent *event)
{
    QByteArray data = event->mimeData()->data("vp1/material");
    event->acceptProposedAction();
    restoreFromState(data);
}
 
 
QByteArray JetCollectionSettingsButton::saveState() const{
 
    messageDebug("JetCollectionSettingsButton::saveState()");
 
    // messageVerbose("getState");
    // if (m_d->editwindow_ui.checkBox_tracksUseBaseLightModel->isChecked()) messageVerbose("checked!");
    VP1Serialise serialise(1/*version*/);
 
 
    serialise.save(m_d->matButton);
    //serialise.disableUnsavedChecks(); // TODO: what this does??
 
    // COMMON SETTINGS
    serialise.save(m_d->editwindow_ui.checkBox_tracksUseBaseLightModel);
    serialise.save(m_d->editwindow_ui.checkBox_cut_minpt);
    serialise.save(m_d->editwindow_ui.doubleSpinBox_cut_minpt_gev);
    serialise.save(m_d->editwindow_ui.checkBox_cut_maxpt);
    serialise.save(m_d->editwindow_ui.doubleSpinBox_cut_maxpt_gev);
    serialise.save(m_d->editwindow_ui.comboBox_momtype);
 
    // ETA-PHI CUTS (from VP1Base/VP1EtaPhiCutWidget.cxx)
    serialise.save(m_d->editwindow_ui.etaPhiCutWidget);
 
    // JET SETTINGS
    serialise.save(m_d->ui_disp.checkBox_randomColours);
    serialise.save(m_d->ui_disp.doubleSpinBox_lengthOf100GeV);
    serialise.save(m_d->ui_disp.comboBox_energytype);
    serialise.save(m_d->ui_disp.checkBox_maxR);
    serialise.save(m_d->ui_disp.doubleSpinBox_maxR);
 
    serialise.save(m_d->ui_disp.groupBox_IDprojection);
    serialise.save(m_d->ui_disp.checkBox_radialScale);
    serialise.save(m_d->ui_disp.doubleSpinBox_radialScale);
 
    serialise.save(m_d->ui_disp.bTaggingCheckBox);
    serialise.save(m_d->ui_disp.bTaggingComboBox);
    serialise.save(m_d->ui_disp.bTaggingSpinBox);
    serialise.save(m_d->ui_disp.radioButton_material, m_d->ui_disp.radioButton_skins);
    serialise.save(m_d->ui_disp.matButton_btaggedJets);
    serialise.save(m_d->ui_disp.skinsComboBox);
 
    // Parameters
//  serialise.save(m_d->editwindow_ui.checkBox_showparameters);
//  serialise.save(m_d->editwindow_ui.checkBox_parameters_colourByType);
 
    serialise.widgetHandled(this);
    serialise.warnUnsaved(this);
    return serialise.result();
}
 
void JetCollectionSettingsButton::restoreFromState( const QByteArray& ba){
 
    messageDebug("JetCollectionSettingsButton::restoreFromState()");
 
    VP1Deserialise state(ba,systemBase());
    if (state.version()<0||state.version()>1) {
        messageDebug("restoreFromState() - ignoring...");
        return;//Ignore silently
    }
    state.restore(m_d->matButton);
 
 
    // COMMON SETTINGS
    state.restore(m_d->editwindow_ui.checkBox_tracksUseBaseLightModel);
    state.restore(m_d->editwindow_ui.checkBox_cut_minpt);
    state.restore(m_d->editwindow_ui.doubleSpinBox_cut_minpt_gev);
    state.restore(m_d->editwindow_ui.checkBox_cut_maxpt);
    state.restore(m_d->editwindow_ui.doubleSpinBox_cut_maxpt_gev);
    state.restore(m_d->editwindow_ui.comboBox_momtype);
 
    // ETA-PHI CUTS (from VP1Base/VP1EtaPhiCutWidget.cxx)
    state.restore(m_d->editwindow_ui.etaPhiCutWidget);
 
    // JET SETTINGS
    state.restore(m_d->ui_disp.checkBox_randomColours);
    state.restore(m_d->ui_disp.doubleSpinBox_lengthOf100GeV);
    state.restore(m_d->ui_disp.comboBox_energytype);
    state.restore(m_d->ui_disp.checkBox_maxR);
    state.restore(m_d->ui_disp.doubleSpinBox_maxR);
 
    state.restore(m_d->ui_disp.groupBox_IDprojection);
    state.restore(m_d->ui_disp.checkBox_radialScale);
    state.restore(m_d->ui_disp.doubleSpinBox_radialScale);
 
    state.restore(m_d->ui_disp.bTaggingCheckBox);
    state.restore(m_d->ui_disp.bTaggingComboBox);
    state.restore(m_d->ui_disp.bTaggingSpinBox);
    state.restore(m_d->ui_disp.radioButton_material, m_d->ui_disp.radioButton_skins);
    state.restore(m_d->ui_disp.matButton_btaggedJets);
    state.restore(m_d->ui_disp.skinsComboBox);
 
 
    //  // Parameters
//  state.restore(m_d->editwindow_ui.checkBox_showparameters);
//  state.restore(m_d->editwindow_ui.checkBox_parameters_colourByType);
 
    state.widgetHandled(this);
    state.warnUnrestored(this);
 
//  updateTrackTubeRadius();
//  updateTrackLightModel(m_d->editwindow_ui.checkBox_tracksUseBaseLightModel);
 
    updateButton();
 
    // after restoring the state, check status of selection cuts
    checkSelection();
 
 
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::checkSelection()
{
    messageDebug("JetCollectionSettingsButton::checkSelection()");
 
    // -- b-tagging settings/cuts
    messageDebug("updating b-tagging status for collection " + m_d->name + "...");
    if (m_d->ui_disp.bTaggingCheckBox->isChecked()) {
        possibleChange_bTaggingEnabled(true); // init the b-tagging toolbox as active
        possibleChange_bTaggingCut();
        if (m_d->ui_disp.radioButton_material->isChecked())
            possibleChange_bTaggingRenderingMaterial(true);
        else if (m_d->ui_disp.radioButton_skins->isChecked())
            possibleChange_bTaggingRenderingSkin(true);
        possibleChange_bTaggingTagger();
    }
    else
        possibleChange_bTaggingEnabled(false); // init the b-tagging toolbox as not-active
 
    // -- other cuts
    messageDebug("updating other selection cuts for collection " + m_d->name + "...");
    possibleChange_maxR();
    possibleChange_cutAllowedEta();
    possibleChange_cutAllowedPhi();
    possibleChange_cutAllowedPt();
    possibleChange_scale();
    possibleChange_randomJetColours();
    //FIXME - anything else need updating?
}
 
//____________________________________________________________________
VP1Interval JetCollectionSettingsButton::cutAllowedPt() const
{
    if (!m_d->editwindow)
        m_d->initEditWindow();
    if (!m_d->editwindow_ui.checkBox_cut_minpt)
        return VP1Interval();
 
    // will set range to negative if we have momcut=P
    // if minCut unset then min=-inf
    // if minCut set, and Pt selected, then min=-minCut
    // if minCut set, and P selected, then min=-maxCut
    // etc
    bool isPCut = m_d->editwindow_ui.comboBox_momtype->currentText()=="P";
 
    const double minFromInterface=m_d->editwindow_ui.doubleSpinBox_cut_minpt_gev->value()*1000;
    const double maxFromInterface=m_d->editwindow_ui.doubleSpinBox_cut_maxpt_gev->value()*1000;
 
    double min=0.0,max=0.0;
    if (!isPCut) {
        //Pt cut
        min = (m_d->editwindow_ui.checkBox_cut_minpt->isChecked() ? minFromInterface : -std::numeric_limits<double>::infinity());
        max = (m_d->editwindow_ui.checkBox_cut_maxpt->isChecked() ? maxFromInterface : std::numeric_limits<double>::infinity());
    } else {
        min = (m_d->editwindow_ui.checkBox_cut_maxpt->isChecked() ? -maxFromInterface : -std::numeric_limits<double>::infinity());
        max = (m_d->editwindow_ui.checkBox_cut_minpt->isChecked() ? -minFromInterface : std::numeric_limits<double>::infinity());
    }
 
    //message("cutAllowedPt: min,max="+QString::number(min)+","+QString::number(max));
 
    if (max<min)
        return VP1Interval();
 
    return VP1Interval( min, max );//fixme: closed interval??
}
 
//____________________________________________________________________
VP1Interval JetCollectionSettingsButton::cutAllowedEta() const
{
    if (!m_d->editwindow)
        m_d->initEditWindow();
    return m_d->editwindow_ui.etaPhiCutWidget->allowedEta();
}
 
//____________________________________________________________________
QList<VP1Interval> JetCollectionSettingsButton::cutAllowedPhi() const
{
    if (!m_d->editwindow)
        m_d->initEditWindow();
    return m_d->editwindow_ui.etaPhiCutWidget->allowedPhi();
}
 
 
 
void JetCollectionSettingsButton::possibleChange_cutAllowedPt()
{
    messageVerbose("possibleChange_cutAllowedPt() ");
 
    if (m_d->last_cutAllowedPt==cutAllowedPt()) return;
    messageVerbose("cutAllowedPt() changed");
    m_d->last_cutAllowedPt= cutAllowedPt();
    emit cutAllowedPtChanged(m_d->last_cutAllowedPt);
}
 
void JetCollectionSettingsButton::possibleChange_cutAllowedEta()
{
    if (m_d->last_cutAllowedEta==cutAllowedEta()) return;
    messageVerbose("cutAllowedEta() changed");
    m_d->last_cutAllowedEta=cutAllowedEta();
    emit cutAllowedEtaChanged(m_d->last_cutAllowedEta);
}
 
void JetCollectionSettingsButton::possibleChange_cutAllowedPhi()
{
    if (m_d->last_cutAllowedPhi==cutAllowedPhi()) return;
    messageVerbose("cutAllowedPhi() changed");
    m_d->last_cutAllowedPhi=cutAllowedPhi();
    emit cutAllowedPhiChanged(m_d->last_cutAllowedPhi);
}
 
void JetCollectionSettingsButton::possibleChange_scale()
{
    messageVerbose("possibleChange_scale() ");
    if (m_d->last_scale == lengthOf100GeV()) return;
 
    messageVerbose("lengthOf100GeV changed");
    m_d->last_scale = lengthOf100GeV();
    emit scaleChanged(m_d->last_scale);
}
 
 
void JetCollectionSettingsButton::possibleChange_randomJetColours()
{
    messageVerbose("possibleChange_randomJetColours() ");
 
    if (m_d->last_randomJetColours == randomJetColours() ) return;
    messageVerbose("checkBox_randomColours changed");
    m_d->last_randomJetColours = randomJetColours();
    emit randomJetColoursChanged(m_d->last_randomJetColours);
}
 
 
//____________________________________________________________________
void JetCollectionSettingsButton::enableRandomColours(bool bb)
{
    m_d->ui_disp.pushButton_colourbyrandom_rerandomise->setEnabled(bb);
}
 
//____________________________________________________________________
bool JetCollectionSettingsButton::randomJetColours() const
{
  return m_d->ui_disp.checkBox_randomColours->isChecked();
}
 
 
//____________________________________________________________________
void JetCollectionSettingsButton::emitRerandomise()
{
  messageVerbose("JetCollectionSettingsButton - Emitting rerandomise");
  emit rerandomise();
}
 
//void JetCollectionSettingsButton::emitMaxR()
//{
//  messageVerbose("JetCollectionSettingsButton - Emitting signalMaxR");
//  emit signalMaxR();
//}
 
//____________________________________________________________________
void JetCollectionSettingsButton::enableMaxR(bool bb)
{
    m_d->ui_disp.doubleSpinBox_maxR->setEnabled(bb);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_maxR()
{
    messageVerbose("possibleChange_maxR() ");
 
    if ( !  m_d->ui_disp.checkBox_maxR->isChecked() ) {
        messageVerbose("maxR unchecked --> setting maxR=0.0 and returning");
        emit maxRChanged(0.0); // setting marR=0.0 disables the maxR option in handleJet
        return;
    }
 
    messageDebug("setting maxR: "+QString::number(maxR()));
    m_d->last_maxR = maxR();
    emit maxRChanged(m_d->last_maxR);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_bTaggingEnabled(bool bb)
{
    messageVerbose("possibleChange_bTaggingEnabled() - "+str(bb));
 
    m_d->ui_disp.bTaggingAlgLabel->setEnabled(bb);
    m_d->ui_disp.bTagginWeightCutLabel->setEnabled(bb);
    m_d->ui_disp.bTaggingComboBox->setEnabled(bb);
    m_d->ui_disp.bTaggingSpinBox->setEnabled(bb);
    m_d->ui_disp.groupBox_btagging_render->setEnabled(bb);
    m_d->ui_disp.matButton_btaggedJets->setEnabled(bb);
    emit bTaggingEnabledChanged(bb);
}
 
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_bTaggingTagger()
{
    messageVerbose("possibleChange_bTaggingTagger() - " + bTaggingTagger() );
    emit bTaggingTaggerChanged( bTaggingTagger() );
}
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_bTaggingCut()
{
    messageVerbose("possibleChange_bTaggingCut() - " + QString::number(bTaggingCut()) );
 
    if (m_d->last_bTaggingCut == bTaggingCut() ) return;
 
    messageVerbose("bTaggingSpinBox changed");
    m_d->last_bTaggingCut = bTaggingCut();
 
    emit bTaggingCutChanged( bTaggingCut() );
}
 
 
// called when user clicks on "Material" checkbox
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_bTaggingRenderingMaterial(bool ok)
{
    messageVerbose("possibleChange_bTaggingRenderingMaterial()");
    messageVerbose("radioButton_material changed - " + QString::number(ok) );
 
    emit bTaggingRenderingMaterialChanged(ok);
}
 
// not needed...
//void JetCollectionSettingsButton::possibleChange_bTaggingMaterial()
//{
//  messageVerbose("possibleChange_bTaggingMaterial()");
//
//  if (m_d->last_bTaggingMaterial == bTaggingMaterial() ) {
//      messageVerbose("material not changed. Returning...");
//      return;
//  }
//
//  messageVerbose("matButton_btaggedJets changed");
//  m_d->last_bTaggingMaterial = bTaggingMaterial();
//
//  emit bTaggingMaterialChanged();
//}
 
 
 
 
// called when user clicks on "Skin" checkbox
//____________________________________________________________________
void JetCollectionSettingsButton::possibleChange_bTaggingRenderingSkin(bool ok)
{
    messageVerbose("possibleChange_bTaggingRenderingSkin()");
    messageVerbose("radioButton_skins changed - " + QString::number(ok) );
 
    emit bTaggingRenderingSkinChanged(ok);
}