PhiSectionWidget.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef PHISECTIONWIDGET_H
#define PHISECTIONWIDGET_H

//                                                                     //
//  Header file for class PhiSectionWidget                             //
//                                                                     //
//  Author: Thomas Kittelmann <Thomas.Kittelmann@cern.ch>              //
//                                                                     //
//  Initial VP1 version: September 2007                                //
//  Major update: January 2009                                         //
//                                                                     //
 
#include "VP1Base/VP1HelperClassBase.h"
#include "VP1Base/VP1Interval.h"
#include "VP1Base/VP1Msg.h"
 
#include <QGraphicsView>
#include <QByteArray>
 
class PhiSectionWidget : public QGraphicsView, public VP1HelperClassBase {
 
 
  Q_OBJECT
 
public:
 
  PhiSectionWidget(QWidget * parent,IVP1System * sys = 0);
  virtual ~PhiSectionWidget();
 
  int numberOfSectors() const;
  void setNumberOfSectors(int,bool forceAllEnabled = false);//(default is 12)
 
  bool allSectorsOn() const;
  bool allSectorsOff() const;
 
  //Return disjoint intervals of allowed phi values. If all sectors
  //are off, an empty list is returned. If all are on, a single
  //interval of 0..2*M_PI is returned:
  QList<VP1Interval> enabledPhiRanges() const;
 
  QString enabledRangesToString() const;
 
  //This further imposes a condition of phi in [phi_min,phi_max]:
  QList<VP1Interval> enabledPhiRanges( double phi_min, double phi_max ) const;
 
  QByteArray state() const;
  void setState(QByteArray);
 
  void launchContextMenu(QPoint);
  void setSectorStatus(int,bool);
 
  //Convenience methods for dealing with "sectors" outside the widget:
  bool virtualSectorEnabled(int iSector, int nSectors) const;
  QVector<bool> virtualSectorsEnabled(int nSectors) const;
  static int phiToVirtualSectorIndex(double phi,int nSectors);
  void setAllowedNumberOfSectors(QList<int> allowedNSectors, bool allowCustom = false);//If current number is not
                                                                                       //among the allowed values,
                                                                                       //the lowest of the allowed
                                                                                       //sectors will be chosen
                                                                                       //(unless allowCustom=true).
                                                                                       //Call ignored if invalid list.
 
signals:
  void enabledPhiRangesChanged(const QList<VP1Interval>&);
 
protected:
  void mousePressEvent(QMouseEvent *);
  void resizeEvent(QResizeEvent *);
  void mouseMoveEvent(QMouseEvent *event);
  void dropEvent(QDropEvent *event);
  void dragEnterEvent(QDragEnterEvent *event);
  void dragLeaveEvent(QDragLeaveEvent * event);
  void dragMoveEvent(QDragMoveEvent * event);
private:
 
  class Imp;
  Imp * m_d;
 
};
 
#endif