FWLongParameterSetter.cc

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// -*- C++ -*-
//
// Package:     Core
// Class  :     FWLongParameterSetter
//
// Implementation:
//     <Notes on implementation>
//
// Original Author:  Chris Jones
//         Created:  Mon Mar 10 11:22:32 CDT 2008
//

// system include files
#include "TGLabel.h"
#include "TGNumberEntry.h"

#include <cassert>
#include <iostream>

// user include files
#include "Fireworks/Core/src/FWLongParameterSetter.h"

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
FWLongParameterSetter::FWLongParameterSetter() : m_param(nullptr), m_widget(nullptr) {}

// FWLongParameterSetter::FWLongParameterSetter(const FWLongParameterSetter& rhs)
// {
//    // do actual copying here;
// }

FWLongParameterSetter::~FWLongParameterSetter() {}

//
// assignment operators
//
// const FWLongParameterSetter& FWLongParameterSetter::operator=(const FWLongParameterSetter& rhs)
// {
//   //An exception safe implementation is
//   FWLongParameterSetter temp(rhs);
//   swap(rhs);
//
//   return *this;
// }

//
// member functions
//

void FWLongParameterSetter::attach(FWParameterBase* iParam) {
  m_param = dynamic_cast<FWLongParameter*>(iParam);
  assert(nullptr != m_param);
}

TGFrame* FWLongParameterSetter::build(TGFrame* iParent, bool labelBack) {
  TGCompositeFrame* frame = new TGHorizontalFrame(iParent);

  // number entry widget
  TGNumberFormat::ELimit limits =
      m_param->min() == m_param->max()
          ? TGNumberFormat::kNELNoLimits
          : (m_param->min() > m_param->max() ? TGNumberFormat::kNELLimitMin : TGNumberFormat::kNELLimitMinMax);
  double min = 0;
  double max = 1;
  if (m_param->min() != m_param->max()) {
    min = m_param->min();
    max = m_param->max();
  }
  m_widget = new TGNumberEntry(frame,
                               m_param->value(),
                               5,                              // number of digits
                               0,                              // widget ID
                               TGNumberFormat::kNESInteger,    // style
                               TGNumberFormat::kNEAAnyNumber,  // input value filter
                               limits,                         // specify limits
                               min,                            // min value
                               max);                           // max value

  m_widget->Connect("ValueSet(Long_t)", "FWLongParameterSetter", this, "doUpdate(Long_t)");

  // label
  TGLabel* label = new TGLabel(frame, m_param->name().c_str());
  if (labelBack) {
    frame->AddFrame(m_widget, new TGLayoutHints(kLHintsLeft | kLHintsCenterY, 2, 6, 2, 2));
    frame->AddFrame(label, new TGLayoutHints(kLHintsLeft | kLHintsCenterY, 2, 2, 0, 0));
  } else {
    frame->AddFrame(label, new TGLayoutHints(kLHintsLeft | kLHintsCenterY));
    frame->AddFrame(m_widget, new TGLayoutHints(kLHintsLeft | kLHintsCenterY, 2, 8, 2, 2));
  }

  return frame;
}

void FWLongParameterSetter::doUpdate(Long_t) {
  //std::cout <<"doUpdate called"<<std::endl;

  // Idiotic TGNumberEntry arrow buttons can send several events and if
  // individual event processing takes longer it can happen that the widget
  // gets detroyed in the meantime. So, process all events from arrows as
  // soon as possible.
  static bool in_update = false;
  if (in_update)
    return;
  in_update = true;
  gClient->ProcessEventsFor((TGWindow*)gTQSender);
  in_update = false;

  assert(nullptr != m_param);
  assert(nullptr != m_widget);
  //std::cout <<m_widget->GetNumberEntry()->GetNumber()<<std::endl;
  m_param->set(m_widget->GetNumberEntry()->GetIntNumber());
  update();
}

//
// const member functions
//

//
// static member functions
//