VP1GeoTreeView.cxx

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
 
//                                                            //
//  Implementation of class VP1GeoTreeView                    //
//                                                            //
//  Author: Thomas H. Kittelmann (Thomas.Kittelmann@cern.ch)  //
//  Initial version: January 2008                             //
//                                                            //
 
#include "VP1GeometrySystems/VP1GeoTreeView.h"
#include <QTimer>
 
//____________________________________________________________________
class VP1GeoTreeView::Imp {
public:
  bool updatescheduled;
};
 
 
//____________________________________________________________________
VP1GeoTreeView::VP1GeoTreeView(QWidget * parent)
  : QTreeView(parent), m_d(new Imp)
{
  m_d->updatescheduled = false;
}
 
//____________________________________________________________________
VP1GeoTreeView::~VP1GeoTreeView()
{
  delete m_d;
}
 
//____________________________________________________________________
void VP1GeoTreeView::updateAllNonHiddenIndices()
{
  if (m_d->updatescheduled)
    m_d->updatescheduled = false;
  bool save = updatesEnabled();
  setUpdatesEnabled(false);
 
  //The following is a bit of a hack. Could probably be done better?
  QModelIndexList oldselection = selectionModel()->selectedIndexes();
  selectAll();
  QModelIndexList allindexes = selectionModel()->selectedIndexes();
  for ( QModelIndex idx :  allindexes) {
    update(idx);
  }
  selectionModel()->clearSelection();
  for ( QModelIndex idx :  oldselection )
    selectionModel()->select(idx,QItemSelectionModel::Select);
 
 
  if (save) {
    setUpdatesEnabled(true);
    update();
  }
}
 
//____________________________________________________________________
void VP1GeoTreeView::scheduleUpdateOfAllNonHiddenIndices()
{
  if (m_d->updatescheduled)
    return;
  QTimer::singleShot(0, this, SLOT(updateAllNonHiddenIndices()));
}