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tderadio/kradio3/plugins/radio/radio.cpp

498 lines
13 KiB

/***************************************************************************
radio.cpp - description
-------------------
begin : Sat March 29 2003
copyright : (C) 2003 by Klas Kalass, Ernst Martin Witte
email : klas@kde.org, 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 "../../src/include/radiostation.h"
#include "../../src/include/aboutwidget.h"
#include "../../src/include/radiodevice_interfaces.h"
#include "radio.h"
#include "radio-configuration.h"
#include <kstandarddirs.h>
#include <kurl.h>
#include <kaboutdata.h>
#include <kconfig.h>
#include "../../src/include/debug-profiler.h"
///////////////////////////////////////////////////////////////////////
//// plugin library functions
PLUGIN_LIBRARY_FUNCTIONS(Radio, "kradio-radio", i18n("Central Radio Device Multiplexer"));
/////////////////////////////////////////////////////////////////////////////
Radio::Radio(const TQString &name)
: PluginBase(name, i18n("Radio Multiplexer Plugin")),
IRadioDeviceClient(-1),
m_presetFile(locateLocal("data", "kradio/stations.krp")),
m_activeDevice (NULL)
{
}
Radio::~Radio()
{
}
bool Radio::connectI (Interface *i)
{
bool a = IRadio::connectI(i);
bool b = IRadioDeviceClient::connectI(i);
bool c = IRadioDevicePool::connectI(i);
bool d = PluginBase::connectI(i);
bool e = ISoundStreamClient::connectI(i);
// no "return IA::connectI() | return IB::connnectI to
// prevent "early termination" optimization in boolean expressions
return a || b || c || d || e;
}
bool Radio::disconnectI (Interface *i)
{
bool a = IRadio::disconnectI(i);
bool b = IRadioDeviceClient::disconnectI(i);
bool c = IRadioDevicePool::disconnectI(i);
bool d = PluginBase::disconnectI(i);
bool e = ISoundStreamClient::disconnectI(i);
// no "return IA::disconnectI() | return IB::disconnnectI to
// prevent "early termination" optimization in boolean expressions
return a || b || c || d || e;
}
void Radio::saveState (TDEConfig *config) const
{
config->setGroup(TQString("radio-") + name());
config->writeEntry("presetfile", m_presetFile);
m_stationList.writeXML(m_presetFile, *this);
}
void Radio::restoreState (TDEConfig *config)
{
config->setGroup(TQString("radio-") + name());
m_presetFile = config->readEntry("presetfile",
TQString());
bool first_restore = false;
if (m_presetFile.isNull() || m_presetFile.length() == 0) {
m_presetFile = locateLocal("data", "kradio/stations.krp");
first_restore = true;
}
m_stationList.readXML(KURL(m_presetFile), *this, /*enable-messagebox*/ !first_restore);
notifyStationsChanged(m_stationList);
notifyPresetFileChanged(m_presetFile);
}
ConfigPageInfo Radio::createConfigurationPage()
{
RadioConfiguration *conf = new RadioConfiguration (NULL, *this);
connectI (conf);
return ConfigPageInfo(
conf,
i18n("Radio Stations"),
i18n("Setup Radio Stations"),
"kradio"
);
}
AboutPageInfo Radio::createAboutPage()
{
/* TDEAboutData aboutData("kradio",
NULL,
NULL,
I18N_NOOP("Radio Device Multiplexer and Station Management for KRadio"),
TDEAboutData::License_GPL,
"(c) 2002-2005 Martin Witte, Klas Kalass",
0,
"http://sourceforge.net/projects/kradio",
0);
aboutData.addAuthor("Martin Witte", "", "witte@kawo1.rwth-aachen.de");
aboutData.addAuthor("Klas Kalass", "", "klas.kalass@gmx.de");
return AboutPageInfo(
new KRadioAboutWidget(aboutData, KRadioAboutWidget::AbtTabbed),
i18n("Device and Station Management"),
i18n("Radio Device Multiplexer and Station Management"),
"kradio"
);
*/
return AboutPageInfo();
}
/* IRadio Interface Methods
*/
/* offer new station to current device.
if that does not accept, try all other devices.
Any device will be powered off if it does not accept the station
*/
bool Radio::activateStation (const RadioStation &rs) {
if (sendActivateStation(rs)) { // first try activeDevice
return true;
} else { // hmm... active device did not want it. Try others...
int n = 0;
for (IRadioDeviceClient::IFIterator it(IRadioDeviceClient::iConnections); it.current(); ++it) {
if (it.current()->activateStation(rs)) {
setActiveDevice(it.current()); // select new device
++n;
} else {
it.current()->powerOff();
}
}
return n > 0;
}
}
bool Radio::activateStation(int index)
{
if (index < 0 || index >= m_stationList.count())
return false;
return activateStation(m_stationList.at(index));
}
bool Radio::setStations(const StationList &sl)
{
if (true/*m_stationList != sl*/) {
BlockProfiler("Radio::setStations");
m_stationList = sl;
notifyStationsChanged(m_stationList);
}
return true;
}
bool Radio::setPresetFile(const TQString &presetFile)
{
if (m_presetFile != presetFile) {
m_presetFile = presetFile;
notifyPresetFileChanged(m_presetFile);
}
return true;
}
int Radio::getStationIdx(const RadioStation &rs) const
{
RawStationList &sl = const_cast<RawStationList&>(m_stationList.all());
return sl.find(&rs);
}
int Radio::getCurrentStationIdx() const
{
return getStationIdx(getCurrentStation());
}
SoundStreamID Radio::getCurrentSoundStreamID() const
{
return queryCurrentSoundStreamID();
}
/* IRadioDevicePool Interface Methods
*/
bool Radio::setActiveDevice(IRadioDevice *rd, bool keepPower)
{
// do nothing if old == new
if (m_activeDevice == rd)
return true;
// check if new station is in "connections"
// special case: rd == NULL: power off active device, new active device = NULL
if (!rd || IRadioDeviceClient::iConnections.containsRef(rd)) { // new device is ok
// save old power state and power off old device
bool oldPowerOn = false;
if (m_activeDevice) {
oldPowerOn = m_activeDevice->isPowerOn();
m_activeDevice->powerOff();
}
// setup new active device && send notifications
m_activeDevice = rd;
// send notifications
notifyActiveDeviceChanged(m_activeDevice);
notifyCurrentSoundStreamIDChanged(queryCurrentSoundStreamID());
const RadioStation &rs = queryCurrentStation();
notifyStationChanged(rs, getStationIdx(rs));
if (keepPower)
oldPowerOn ? sendPowerOn() : sendPowerOff();
return true;
} else {
return false;
}
}
IRadioDevice *Radio::getActiveDevice() const
{
return m_activeDevice;
}
const TQPtrList<IRadioDevice> &Radio::getDevices() const
{
return IRadioDeviceClient::iConnections;
}
const TQString &Radio::getDeviceDescription() const
{
return queryDescription();
}
/* IRadioDeviceClient Interface Methods
Many things are overwritten, particularly all sending methods
*/
int Radio::sendPowerOn() const
{
return m_activeDevice ? m_activeDevice->powerOn() : 0;
}
int Radio::sendPowerOff() const
{
return m_activeDevice ? m_activeDevice->powerOff() : 0;
}
int Radio::sendActivateStation (const RadioStation &rs) const
{
return m_activeDevice ? m_activeDevice->activateStation(rs) : 0;
}
bool Radio::queryIsPowerOn() const
{
return m_activeDevice ? m_activeDevice->isPowerOn() : false;
}
bool Radio::queryIsPowerOff() const
{
return m_activeDevice ? m_activeDevice->isPowerOff() : true;
}
const RadioStation & Radio::queryCurrentStation() const
{
if (m_activeDevice) {
RadioStation &rs = const_cast<RadioStation&>(m_activeDevice->getCurrentStation());
int idx = getStationIdx(rs);
if (idx >= 0) {
rs.copyDescriptionFrom(m_stationList.at(idx));
} else {
rs.copyDescriptionFrom(undefinedRadioStation);
}
return rs;
} else {
return undefinedRadioStation;
}
}
static TQString qstrUnknown(I18N_NOOP("unknown"));
static TQString i18nqstrUnknown;
const TQString &Radio::queryDescription() const
{
return m_activeDevice ? m_activeDevice->getDescription() : (i18nqstrUnknown = i18n(qstrUnknown.ascii()));
}
bool Radio::noticePowerChanged (bool on, const IRadioDevice *sender)
{
if (on) {
setActiveDevice(const_cast<IRadioDevice*>(sender), false);
// false: do not set power state on new device
// constcast valid because power-state of sender is not changed
notifyPowerChanged(true);
return true;
} else {
if (sender == m_activeDevice) {
sendStopCountdown();
notifyPowerChanged(false);
return true;
}
return false;
}
}
bool Radio::noticeStationChanged (const RadioStation &_rs, const IRadioDevice *sender)
{
RadioStation &rs = const_cast<RadioStation&>(_rs);
int idx = getStationIdx(rs);
RadioStation &known = (idx >= 0) ? (RadioStation&)m_stationList.at(idx) :
(RadioStation&)undefinedRadioStation;
rs.copyDescriptionFrom(known);
if (sender == m_activeDevice)
notifyStationChanged(rs, idx);
return true;
}
bool Radio::noticeDescriptionChanged (const TQString &s, const IRadioDevice *sender)
{
if (sender == m_activeDevice)
notifyDeviceDescriptionChanged(s);
return true;
}
bool Radio::noticeCurrentSoundStreamIDChanged(SoundStreamID id, const IRadioDevice *sender)
{
if (sender == m_activeDevice)
notifyCurrentSoundStreamIDChanged(id);
return true;
}
SoundStreamID Radio::queryCurrentSoundStreamID() const
{
return m_activeDevice ? m_activeDevice->getCurrentSoundStreamID() : SoundStreamID::InvalidID;
}
void Radio::noticeConnectedI(IRadioDeviceClient::cmplInterface *dev, bool pointer_valid)
{
IRadioDeviceClient::noticeConnectedI(dev, pointer_valid);
if (! m_activeDevice && pointer_valid)
setActiveDevice (dev, false);
notifyDevicesChanged(IRadioDeviceClient::iConnections);
}
void Radio::noticeDisconnectI(IRadioDeviceClient::cmplInterface *rd, bool pointer_valid)
{
IRadioDeviceClient::noticeDisconnectI(rd, pointer_valid);
if (rd == m_activeDevice) {
// search a new active device
if (IRadioDeviceClient::iConnections.findRef(rd) >= 0) {
IRadioDevice *new_rd = NULL;
new_rd = IRadioDeviceClient::iConnections.next(); // choose next device as active device if next exists
if (!new_rd) {
IRadioDeviceClient::iConnections.findRef(rd);
new_rd = IRadioDeviceClient::iConnections.prev(); // otherwise try prev then, may be NULL (no connections)
}
setActiveDevice(new_rd);
} else {
// strange error occurred, m_activeDevice not in connections... set to first.
setActiveDevice(IRadioDeviceClient::iConnections.first());
}
}
notifyDevicesChanged(IRadioDeviceClient::iConnections);
}
// ITimeControlClient
bool Radio::noticeAlarm(const Alarm &a)
{
if (a.alarmType() == Alarm::StartPlaying ||
a.alarmType() == Alarm::StartRecording)
{
const RawStationList &sl = getStations().all();
const RadioStation &rs = sl.stationWithID(a.stationID());
activateStation(rs);
powerOn();
if (a.volumePreset() >= 0)
sendPlaybackVolume(getCurrentSoundStreamID(), a.volumePreset());
SoundStreamID id = getCurrentSoundStreamID();
bool r = false;
SoundFormat sf;
queryIsRecordingRunning(id, r, sf);
if (a.alarmType() == Alarm::StartRecording && !r)
sendStartRecording(id);
} else {
powerOff();
}
return true;
}
bool Radio::noticeCountdownZero()
{
powerOff();
return true;
}
void Radio::aboutToQuit()
{
sendPowerOff();
}