frequencyseekhelper.h

Go to the documentation of this file.
00001 /***************************************************************************
00002                           frequencyseekhelper.h  -  description
00003                              -------------------
00004     begin                : Fre Mai 9 2003
00005     copyright            : (C) 2003 by Martin Witte
00006     email                : emw-kradio@nocabal.de
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  *                                                                         *
00011  *   This program is free software; you can redistribute it and/or modify  *
00012  *   it under the terms of the GNU General Public License as published by  *
00013  *   the Free Software Foundation; either version 2 of the License, or     *
00014  *   (at your option) any later version.                                   *
00015  *                                                                         *
00016  ***************************************************************************/
00017 
00018 #ifndef KRADIO_FREQUENCY_SEEKHELPER_H
00019 #define KRADIO_FREQUENCY_SEEKHELPER_H
00020 
00021 #ifdef HAVE_CONFIG_H
00022 #include <config.h>
00023 #endif
00024 
00025 #include <QtCore/QObject>
00026 #include <QtCore/QTimer>
00027 //#include "radiodevice_interfaces.h"
00028 #include "frequencyradio_interfaces.h"
00029 #include "seekhelper.h"
00030 #include <kdemacros.h>
00031 
00032 class KDE_EXPORT FrequencySeekHelper : public QObject,
00033                                        public SeekHelper,
00034                                        public IFrequencyRadioClient
00035 {
00036 Q_OBJECT
00037 public:
00038 
00039     FrequencySeekHelper(ISeekRadio &parent);
00040     virtual ~FrequencySeekHelper();
00041 
00042 // IFrequencyRadioClient
00043 RECEIVERS:
00044     bool noticeFrequencyChanged(float /*f*/, const FrequencyRadioStation */*s*/)  { return false; }
00045     bool noticeMinMaxFrequencyChanged(float /*min*/, float /*max*/)      { return false; }
00046     bool noticeDeviceMinMaxFrequencyChanged(float /*min*/, float /*max*/){ return false; }
00047     bool noticeScanStepChanged(float /*s*/)                              { return false; }
00048 
00049 public:
00050 
00051     virtual bool     connectI   (Interface *i);
00052     virtual bool     disconnectI(Interface *i);
00053 
00054     virtual void     start(const SoundStreamID &, direction_t dir);
00055 
00056 public slots:
00057 
00058     virtual void step() { SeekHelper::step(); }
00059 
00060 protected:
00061     virtual void abort();
00062     virtual bool isGood() const;
00063     virtual bool isBetter() const;
00064     virtual bool isWorse() const;
00065     virtual bool bestFound() const;
00066     virtual void getData();
00067     virtual void rememberBest();
00068     virtual bool nextSeekStep();
00069     virtual void applyBest();
00070 
00071 protected:
00072     QTimer  *m_timer;
00073 
00074     float    m_currentSignal, m_oldSignal;
00075     bool     m_goodSignal;
00076     float    m_currentFrequency, m_oldFrequency;
00077     float    m_bestFrequency;
00078 };
00079 
00080 #endif

Generated on Tue Jun 2 19:19:57 2009 for kradio4 by  doxygen 1.5.8