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/***************************************************************************
seekhelper.cpp - 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. *
* *
***************************************************************************/
#include "include/seekhelper.h"
#include <kdebug.h>
SeekHelper::SeekHelper(ISeekRadio &parent)
: m_state(off),
m_parent(parent),
m_SoundStreamID(SoundStreamID::InvalidID)
{
}
SeekHelper::~SeekHelper()
{
}
bool SeekHelper::connectI (Interface *i)
{
bool a = IRadioDeviceClient::connectI(i);
bool b = ISoundStreamClient::connectI(i);
return a || b;
}
bool SeekHelper::disconnectI(Interface *i)
{
bool a = IRadioDeviceClient::disconnectI(i);
bool b = ISoundStreamClient::disconnectI(i);
return a || b;
}
void SeekHelper::start(const SoundStreamID &id, direction_t dir)
{
m_SoundStreamID = id;
if (m_state == off) {
getData();
m_state = isGood() ? searchWorse : searchBest;
m_direction = dir;
queryIsMuted(m_SoundStreamID, m_oldMute);
sendMute(m_SoundStreamID, true);
m_parent.notifySeekStarted(m_direction == up);
step();
}
}
void SeekHelper::stop ()
{
if (m_state != off) {
m_state = off;
abort();
sendMute(m_SoundStreamID, m_oldMute);
m_parent.notifySeekStopped();
m_SoundStreamID = SoundStreamID::InvalidID;
}
}
void SeekHelper::finish ()
{
if (m_state != off) {
applyBest();
const RadioStation &rs = queryCurrentStation();
stop();
m_parent.notifySeekFinished(rs, isGood());
}
}
void SeekHelper::step ()
{
if (m_state == off)
return;
getData();
switch (m_state) {
case off : break;
case searchWorse :
if (isWorse())
m_state = searchBest;
if (! nextSeekStep()) {
stop();
}
break;
case searchBest :
if (isWorse() && bestFound()) {
finish();
} else {
if (isBetter() && isGood()) {
rememberBest();
}
if (! nextSeekStep()) {
if (isGood() && bestFound()) {
finish();
} else {
stop();
}
}
}
break;
}
}
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