gmTrackedValueAccessor.h

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/************************************************************************
**
** Copyright (C) 2014 by Carlos Augusto Teixera Mendes
** All rights reserved.
**
** This file is part of the "GeMA" software. It's use should respect
** the terms in the license agreement that can be found together 
** with this source code.
** It is provided AS IS, with NO WARRANTY OF ANY KIND, 
** INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR 
** A PARTICULAR PURPOSE.
**
************************************************************************/

#ifndef _GEMA_TRACKED_VALUE_ACCESSOR_H_
#define _GEMA_TRACKED_VALUE_ACCESSOR_H_

#include "gmValueAccessor.h"
#include "gmValueSet.h"

#include <QObject>


class GMC_API_EXPORT GmTrackedValueAccessor : public QObject, public GmValueAccessorBase
{
  Q_OBJECT

public:
  GmTrackedValueAccessor(GmValueInfo* info, const GmLogCategory& logger, UnitConverter* conv, QString desiredUnit)
    : GmValueAccessorBase(info, logger, conv, desiredUnit), _locked(false), _sindex(-1) {}

  virtual ~GmTrackedValueAccessor() {}

  virtual GmValueSetData* valueSetData() = 0;

  virtual void updateValueSetData(GmValueSetData* vsd) = 0;

  void setTrackIndex(int sindex, bool locked) { _sindex = sindex; _locked = locked; }

  int trackIndex() const { return _sindex; }

  bool trackIndexLocked() const { return _locked; }

private slots:
  
  void setDataChanged(const GmValueSet* vs)
  {
    assert(_sindex >= 0); // setTrackIndex must have been called if this accessor is connected to a signal
    updateValueSetData(vs->valueSetData(_sindex, _locked));
  }

private:
  bool _locked; 
  int  _sindex; 
};


#endif