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135 lines
3.2 KiB
135 lines
3.2 KiB
/***************************************************************************
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seekhelper.cpp - description
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-------------------
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begin : Sam Mai 10 2003
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copyright : (C) 2003 by Martin Witte
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email : witte@kawo1.rwth-aachen.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "include/seekhelper.h"
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#include <kdebug.h>
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SeekHelper::SeekHelper(ISeekRadio &parent)
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: m_state(off),
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m_parent(parent),
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m_SoundStreamID(SoundStreamID::InvalidID)
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{
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}
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SeekHelper::~SeekHelper()
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{
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}
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bool SeekHelper::connectI (Interface *i)
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{
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bool a = IRadioDeviceClient::connectI(i);
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bool b = ISoundStreamClient::connectI(i);
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return a || b;
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}
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bool SeekHelper::disconnectI(Interface *i)
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{
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bool a = IRadioDeviceClient::disconnectI(i);
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bool b = ISoundStreamClient::disconnectI(i);
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return a || b;
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}
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void SeekHelper::start(const SoundStreamID &id, direction_t dir)
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{
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m_SoundStreamID = id;
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if (m_state == off) {
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getData();
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m_state = isGood() ? searchWorse : searchBest;
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m_direction = dir;
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queryIsMuted(m_SoundStreamID, m_oldMute);
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sendMute(m_SoundStreamID, true);
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m_parent.notifySeekStarted(m_direction == up);
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step();
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}
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}
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void SeekHelper::stop ()
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{
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if (m_state != off) {
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m_state = off;
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abort();
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sendMute(m_SoundStreamID, m_oldMute);
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m_parent.notifySeekStopped();
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m_SoundStreamID = SoundStreamID::InvalidID;
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}
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}
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void SeekHelper::finish ()
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{
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if (m_state != off) {
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applyBest();
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const RadioStation &rs = queryCurrentStation();
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stop();
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m_parent.notifySeekFinished(rs, isGood());
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}
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}
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void SeekHelper::step ()
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{
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if (m_state == off)
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return;
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getData();
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switch (m_state) {
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case off : break;
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case searchWorse :
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if (isWorse())
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m_state = searchBest;
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if (! nextSeekStep()) {
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stop();
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}
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break;
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case searchBest :
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if (isWorse() && bestFound()) {
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finish();
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} else {
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if (isBetter() && isGood()) {
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rememberBest();
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}
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if (! nextSeekStep()) {
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if (isGood() && bestFound()) {
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finish();
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} else {
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stop();
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}
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}
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}
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break;
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}
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}
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