src/tracesprovider.h

/***************************************************************************
                          tracesprovider.h  -  description
                             -------------------
    begin                : Mon Mar 1 2004
    copyright            : (C) 2004 by Lynn Hazan
    email                : lynn.hazan.myrealbox.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifndef TRACESPROVIDER_H
#define TRACESPROVIDER_H

//include files for the application
#include <dataprovider.h>
#include <array.h>
#include <types.h>

// include files for QT
#include <qptrlist.h>
#include <qobject.h>

class TracesProvider : public DataProvider  {
  Q_OBJECT
public:

     TracesProvider(KURL fileUrl,int nbChannels,int resolution,double samplingRate,int offset);
     ~TracesProvider();

  void requestData(long startTime,long endTime,QObject* initiator,long startTimeInRecordingUnits);

  inline void setNbChannels(int nb){
   nbChannels = nb;
   computeRecordingLength();
  };

  inline void setResolution(int res){
   resolution = res;
   computeRecordingLength();
  };

  inline void setSamplingRate(double rate){
   samplingRate = rate;
   computeRecordingLength();
  };

  inline void setOffset(int newOffset){offset =  newOffset;};

  inline int getNbChannels() const {return nbChannels;};

  inline int getResolution() const {return resolution;};

  inline double getSamplingRate() const {return samplingRate;};

  inline int getOffset() const {return offset;};

  inline long long recordingLength()const{return length;};

  dataType getNbSamples(long startTime,long endTime,long startTimeInRecordingUnits);

  long getTotalNbSamples();
  
signals:
  void dataReady(Array<dataType>& data,QObject* initiator);
             
private:
  int nbChannels;

  int resolution;

  double samplingRate;

  int offset;

  long long length;
  
  //Functions

  void retrieveData(long startTime,long endTime,QObject* initiator,long startTimeInRecordingUnits);

  void computeRecordingLength();
  
 };

#endif

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