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/***************************************************************************
seekhelper.h - description
-------------------
begin : Sam Mai 10 2003
copyright : (C) 2003 by Martin Witte
email : witte@kawo1.rwth-aachen.de
***************************************************************************/
/***************************************************************************
* *
* 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 KRADIO_SEEKHELPER_H
#define KRADIO_SEEKHELPER_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "radiodevice_interfaces.h"
#include "soundstreamclient_interfaces.h"
class SeekHelper : public IRadioDeviceClient,
public ISoundStreamClient
{
public:
typedef enum { off, searchWorse, searchBest } state_t;
typedef enum { up, down } direction_t;
SeekHelper(ISeekRadio &parent);
virtual ~SeekHelper();
virtual bool connectI (Interface *i);
virtual bool disconnectI(Interface *i);
virtual void start(const SoundStreamID &id, direction_t dir);
virtual void step();
virtual void stop();
bool isRunning() const { return m_state != off; }
bool isRunningUp() const { return m_state != off && m_direction == up; }
bool isRunningDown() const { return m_state != off && m_direction == down; }
// IRadioDeviceClient
RECEIVERS:
bool noticePowerChanged (bool /*on*/, const IRadioDevice */*sender*/) { return false; }
bool noticeStationChanged (const RadioStation &, const IRadioDevice */*sender*/) { return false; }
bool noticeDescriptionChanged (const TQString &, const IRadioDevice */*sender*/) { return false; }
bool noticeCurrentSoundStreamIDChanged(SoundStreamID /*id*/, const IRadioDevice */*sender*/) { return false; }
protected:
virtual void finish();
virtual void abort() = 0;
virtual bool isGood() const = 0;
virtual bool isBetter() const = 0;
virtual bool isWorse() const = 0;
virtual bool bestFound() const = 0;
virtual void getData() = 0;
virtual void rememberBest() = 0;
virtual bool nextSeekStep() = 0;
virtual void applyBest() = 0;
protected:
state_t m_state;
direction_t m_direction;
bool m_oldMute;
ISeekRadio &m_parent;
SoundStreamID m_SoundStreamID;
};
#endif
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