/////////////////////////////////////////////////////////////////////////////////// // Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany // // written by Christian Daniel // // Copyright (C) 2015-2022 Edouard Griffiths, F4EXB // // Copyright (C) 2015 John Greb // // Copyright (C) 2018 beta-tester // // Copyright (C) 2021-2023 Jon Beniston, M7RCE // // // // 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 as version 3 of the License, or // // (at your option) any later version. // // // // This program is distributed in the hope that it will be useful, // // but WITHOUT ANY WARRANTY; without even the implied warranty of // // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // // GNU General Public License V3 for more details. // // // // You should have received a copy of the GNU General Public License // // along with this program. If not, see . // /////////////////////////////////////////////////////////////////////////////////// #include #include #include #include #include #include #include "device/deviceuiset.h" #include "plugin/pluginapi.h" #include "util/db.h" #include "dsp/dspengine.h" #include "dsp/cwkeyer.h" #include "dsp/dspcommands.h" #include "gui/crightclickenabler.h" #include "gui/audioselectdialog.h" #include "gui/basicchannelsettingsdialog.h" #include "gui/dialpopup.h" #include "gui/dialogpositioner.h" #include "maincore.h" #include "ui_wfmmodgui.h" #include "wfmmodgui.h" WFMModGUI* WFMModGUI::create(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, BasebandSampleSource *channelTx) { WFMModGUI* gui = new WFMModGUI(pluginAPI, deviceUISet, channelTx); return gui; } void WFMModGUI::destroy() { delete this; } void WFMModGUI::resetToDefaults() { m_settings.resetToDefaults(); displaySettings(); applySettings(true); } QByteArray WFMModGUI::serialize() const { return m_settings.serialize(); } bool WFMModGUI::deserialize(const QByteArray& data) { if(m_settings.deserialize(data)) { displaySettings(); applySettings(true); return true; } else { resetToDefaults(); return false; } } bool WFMModGUI::handleMessage(const Message& message) { if (WFMMod::MsgReportFileSourceStreamData::match(message)) { m_recordSampleRate = ((WFMMod::MsgReportFileSourceStreamData&)message).getSampleRate(); m_recordLength = ((WFMMod::MsgReportFileSourceStreamData&)message).getRecordLength(); m_samplesCount = 0; updateWithStreamData(); return true; } else if (WFMMod::MsgReportFileSourceStreamTiming::match(message)) { m_samplesCount = ((WFMMod::MsgReportFileSourceStreamTiming&)message).getSamplesCount(); updateWithStreamTime(); return true; } else if (WFMMod::MsgConfigureWFMMod::match(message)) { const WFMMod::MsgConfigureWFMMod& cfg = (WFMMod::MsgConfigureWFMMod&) message; m_settings = cfg.getSettings(); blockApplySettings(true); m_channelMarker.updateSettings(static_cast(m_settings.m_channelMarker)); displaySettings(); blockApplySettings(false); return true; } else if (CWKeyer::MsgConfigureCWKeyer::match(message)) { const CWKeyer::MsgConfigureCWKeyer& cfg = (CWKeyer::MsgConfigureCWKeyer&) message; ui->cwKeyerGUI->setSettings(cfg.getSettings()); ui->cwKeyerGUI->displaySettings(); return true; } else if (DSPSignalNotification::match(message)) { const DSPSignalNotification& notif = (const DSPSignalNotification&) message; m_deviceCenterFrequency = notif.getCenterFrequency(); m_basebandSampleRate = notif.getSampleRate(); ui->deltaFrequency->setValueRange(false, 8, -m_basebandSampleRate/2, m_basebandSampleRate/2); ui->deltaFrequencyLabel->setToolTip(tr("Range %1 %L2 Hz").arg(QChar(0xB1)).arg(m_basebandSampleRate/2)); updateAbsoluteCenterFrequency(); return true; } else { return false; } } void WFMModGUI::channelMarkerChangedByCursor() { ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency()); m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency(); applySettings(); } void WFMModGUI::handleSourceMessages() { Message* message; while ((message = getInputMessageQueue()->pop()) != 0) { if (handleMessage(*message)) { delete message; } } } void WFMModGUI::on_deltaFrequency_changed(qint64 value) { m_channelMarker.setCenterFrequency(value); m_settings.m_inputFrequencyOffset = m_channelMarker.getCenterFrequency(); updateAbsoluteCenterFrequency(); applySettings(); } void WFMModGUI::on_rfBW_currentIndexChanged(int index) { float rfBW = WFMModSettings::getRFBW(index); m_channelMarker.setBandwidth(rfBW); m_settings.m_rfBandwidth = rfBW; applySettings(); } void WFMModGUI::on_afBW_valueChanged(int value) { ui->afBWText->setText(QString("%1k").arg(value)); m_settings.m_afBandwidth = value * 1000.0; applySettings(); } void WFMModGUI::on_fmDev_valueChanged(int value) { ui->fmDevText->setText(QString("%1k").arg(value)); m_settings.m_fmDeviation = value * 1000.0; applySettings(); } void WFMModGUI::on_volume_valueChanged(int value) { ui->volumeText->setText(QString("%1").arg(value / 10.0, 0, 'f', 1)); m_settings.m_volumeFactor = value / 10.0; applySettings(); } void WFMModGUI::on_toneFrequency_valueChanged(int value) { ui->toneFrequencyText->setText(QString("%1k").arg(value / 100.0, 0, 'f', 2)); m_settings.m_toneFrequency = value * 10.0; applySettings(); } void WFMModGUI::on_channelMute_toggled(bool checked) { m_settings.m_channelMute = checked; applySettings(); } void WFMModGUI::on_playLoop_toggled(bool checked) { m_settings.m_playLoop = checked; applySettings(); } void WFMModGUI::on_play_toggled(bool checked) { ui->tone->setEnabled(!checked); // release other source inputs ui->mic->setEnabled(!checked); ui->morseKeyer->setEnabled(!checked); m_settings.m_modAFInput = checked ? WFMModSettings::WFMModInputFile : WFMModSettings::WFMModInputNone; applySettings(); ui->navTimeSlider->setEnabled(!checked); m_enableNavTime = !checked; } void WFMModGUI::on_tone_toggled(bool checked) { ui->play->setEnabled(!checked); // release other source inputs ui->mic->setEnabled(!checked); ui->morseKeyer->setEnabled(!checked); m_settings.m_modAFInput = checked ? WFMModSettings::WFMModInputTone : WFMModSettings::WFMModInputNone; applySettings(); } void WFMModGUI::on_morseKeyer_toggled(bool checked) { ui->tone->setEnabled(!checked); // release other source inputs ui->mic->setEnabled(!checked); ui->play->setEnabled(!checked); m_settings.m_modAFInput = checked ? WFMModSettings::WFMModInputCWTone : WFMModSettings::WFMModInputNone; applySettings(); } void WFMModGUI::on_mic_toggled(bool checked) { ui->play->setEnabled(!checked); // release other source inputs ui->tone->setEnabled(!checked); // release other source inputs ui->morseKeyer->setEnabled(!checked); m_settings.m_modAFInput = checked ? WFMModSettings::WFMModInputAudio : WFMModSettings::WFMModInputNone; applySettings(); } void WFMModGUI::on_feedbackEnable_toggled(bool checked) { m_settings.m_feedbackAudioEnable = checked; applySettings(); } void WFMModGUI::on_feedbackVolume_valueChanged(int value) { ui->feedbackVolumeText->setText(QString("%1").arg(value / 100.0, 0, 'f', 2)); m_settings.m_feedbackVolumeFactor = value / 100.0; applySettings(); } void WFMModGUI::on_navTimeSlider_valueChanged(int value) { if (m_enableNavTime && ((value >= 0) && (value <= 100))) { int t_sec = (m_recordLength * value) / 100; QTime t(0, 0, 0, 0); t = t.addSecs(t_sec); WFMMod::MsgConfigureFileSourceSeek* message = WFMMod::MsgConfigureFileSourceSeek::create(value); m_wfmMod->getInputMessageQueue()->push(message); } } void WFMModGUI::on_showFileDialog_clicked(bool checked) { (void) checked; QString fileName = QFileDialog::getOpenFileName(this, tr("Open raw audio file"), ".", tr("Raw audio Files (*.raw)"), 0, QFileDialog::DontUseNativeDialog); if (fileName != "") { m_fileName = fileName; ui->recordFileText->setText(m_fileName); ui->play->setEnabled(true); configureFileName(); } } void WFMModGUI::configureFileName() { qDebug() << "FileSourceGui::configureFileName: " << m_fileName.toStdString().c_str(); WFMMod::MsgConfigureFileSourceName* message = WFMMod::MsgConfigureFileSourceName::create(m_fileName); m_wfmMod->getInputMessageQueue()->push(message); } void WFMModGUI::onWidgetRolled(QWidget* widget, bool rollDown) { (void) widget; (void) rollDown; getRollupContents()->saveState(m_rollupState); applySettings(); } void WFMModGUI::onMenuDialogCalled(const QPoint &p) { if (m_contextMenuType == ContextMenuType::ContextMenuChannelSettings) { BasicChannelSettingsDialog dialog(&m_channelMarker, this); dialog.setUseReverseAPI(m_settings.m_useReverseAPI); dialog.setReverseAPIAddress(m_settings.m_reverseAPIAddress); dialog.setReverseAPIPort(m_settings.m_reverseAPIPort); dialog.setReverseAPIDeviceIndex(m_settings.m_reverseAPIDeviceIndex); dialog.setReverseAPIChannelIndex(m_settings.m_reverseAPIChannelIndex); dialog.setDefaultTitle(m_displayedName); if (m_deviceUISet->m_deviceMIMOEngine) { dialog.setNumberOfStreams(m_wfmMod->getNumberOfDeviceStreams()); dialog.setStreamIndex(m_settings.m_streamIndex); } dialog.move(p); new DialogPositioner(&dialog, false); dialog.exec(); m_settings.m_rgbColor = m_channelMarker.getColor().rgb(); m_settings.m_title = m_channelMarker.getTitle(); m_settings.m_useReverseAPI = dialog.useReverseAPI(); m_settings.m_reverseAPIAddress = dialog.getReverseAPIAddress(); m_settings.m_reverseAPIPort = dialog.getReverseAPIPort(); m_settings.m_reverseAPIDeviceIndex = dialog.getReverseAPIDeviceIndex(); m_settings.m_reverseAPIChannelIndex = dialog.getReverseAPIChannelIndex(); setWindowTitle(m_settings.m_title); setTitle(m_channelMarker.getTitle()); setTitleColor(m_settings.m_rgbColor); if (m_deviceUISet->m_deviceMIMOEngine) { m_settings.m_streamIndex = dialog.getSelectedStreamIndex(); m_channelMarker.clearStreamIndexes(); m_channelMarker.addStreamIndex(m_settings.m_streamIndex); updateIndexLabel(); } applySettings(); } resetContextMenuType(); } WFMModGUI::WFMModGUI(PluginAPI* pluginAPI, DeviceUISet *deviceUISet, BasebandSampleSource *channelTx, QWidget* parent) : ChannelGUI(parent), ui(new Ui::WFMModGUI), m_pluginAPI(pluginAPI), m_deviceUISet(deviceUISet), m_channelMarker(this), m_deviceCenterFrequency(0), m_basebandSampleRate(1), m_doApplySettings(true), m_recordLength(0), m_recordSampleRate(48000), m_samplesCount(0), m_audioSampleRate(-1), m_feedbackAudioSampleRate(-1), m_tickCount(0), m_enableNavTime(false) { setAttribute(Qt::WA_DeleteOnClose, true); m_helpURL = "plugins/channeltx/modwfm/readme.md"; RollupContents *rollupContents = getRollupContents(); ui->setupUi(rollupContents); setSizePolicy(rollupContents->sizePolicy()); rollupContents->arrangeRollups(); connect(rollupContents, SIGNAL(widgetRolled(QWidget*,bool)), this, SLOT(onWidgetRolled(QWidget*,bool))); blockApplySettings(true); ui->rfBW->clear(); for (int i = 0; i < WFMModSettings::m_nbRfBW; i++) { ui->rfBW->addItem(QString("%1").arg(WFMModSettings::getRFBW(i) / 1000.0, 0, 'f', 2)); } ui->rfBW->setCurrentIndex(7); blockApplySettings(false); connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(onMenuDialogCalled(const QPoint &))); m_wfmMod = (WFMMod*) channelTx; m_wfmMod->setMessageQueueToGUI(getInputMessageQueue()); connect(&MainCore::instance()->getMasterTimer(), SIGNAL(timeout()), this, SLOT(tick())); CRightClickEnabler *audioMuteRightClickEnabler = new CRightClickEnabler(ui->mic); connect(audioMuteRightClickEnabler, SIGNAL(rightClick(const QPoint &)), this, SLOT(audioSelect(const QPoint &))); CRightClickEnabler *feedbackRightClickEnabler = new CRightClickEnabler(ui->feedbackEnable); connect(feedbackRightClickEnabler, SIGNAL(rightClick(const QPoint &)), this, SLOT(audioFeedbackSelect(const QPoint &))); ui->deltaFrequencyLabel->setText(QString("%1f").arg(QChar(0x94, 0x03))); ui->deltaFrequency->setColorMapper(ColorMapper(ColorMapper::GrayGold)); ui->deltaFrequency->setValueRange(false, 8, -99999999, 99999999); m_channelMarker.blockSignals(true); m_channelMarker.setColor(Qt::blue); m_channelMarker.setBandwidth(125000); m_channelMarker.setCenterFrequency(0); m_channelMarker.setTitle("WFM Modulator"); m_channelMarker.setSourceOrSinkStream(false); m_channelMarker.blockSignals(false); m_channelMarker.setVisible(true); // activate signal on the last setting only m_deviceUISet->addChannelMarker(&m_channelMarker); connect(&m_channelMarker, SIGNAL(changedByCursor()), this, SLOT(channelMarkerChangedByCursor())); ui->play->setEnabled(false); ui->play->setChecked(false); ui->tone->setChecked(false); ui->mic->setChecked(false); ui->cwKeyerGUI->setCWKeyer(m_wfmMod->getCWKeyer()); m_settings.setChannelMarker(&m_channelMarker); m_settings.setCWKeyerGUI(ui->cwKeyerGUI); m_settings.setRollupState(&m_rollupState); connect(getInputMessageQueue(), SIGNAL(messageEnqueued()), this, SLOT(handleSourceMessages())); m_wfmMod->setLevelMeter(ui->volumeMeter); displaySettings(); makeUIConnections(); applySettings(true); DialPopup::addPopupsToChildDials(this); m_resizer.enableChildMouseTracking(); } WFMModGUI::~WFMModGUI() { delete ui; } void WFMModGUI::blockApplySettings(bool block) { m_doApplySettings = !block; } void WFMModGUI::applySettings(bool force) { if (m_doApplySettings) { WFMMod::MsgConfigureWFMMod *msgConf = WFMMod::MsgConfigureWFMMod::create(m_settings, force); m_wfmMod->getInputMessageQueue()->push(msgConf); } } void WFMModGUI::displaySettings() { m_channelMarker.blockSignals(true); m_channelMarker.setCenterFrequency(m_settings.m_inputFrequencyOffset); m_channelMarker.setTitle(m_settings.m_title); m_channelMarker.setBandwidth(m_settings.m_rfBandwidth); m_channelMarker.blockSignals(false); m_channelMarker.setColor(m_settings.m_rgbColor); // activate signal on the last setting only setTitleColor(m_settings.m_rgbColor); setWindowTitle(m_channelMarker.getTitle()); setTitle(m_channelMarker.getTitle()); updateIndexLabel(); blockApplySettings(true); ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency()); ui->rfBW->setCurrentIndex(WFMModSettings::getRFBWIndex(m_settings.m_rfBandwidth)); ui->afBWText->setText(QString("%1k").arg(m_settings.m_afBandwidth / 1000.0)); ui->afBW->setValue(m_settings.m_afBandwidth / 1000.0); ui->fmDevText->setText(QString("%1k").arg(m_settings.m_fmDeviation / 1000.0)); ui->fmDev->setValue(m_settings.m_fmDeviation / 1000.0); ui->volumeText->setText(QString("%1").arg(m_settings.m_volumeFactor, 0, 'f', 1)); ui->volume->setValue(m_settings.m_volumeFactor * 10.0); ui->toneFrequencyText->setText(QString("%1k").arg(m_settings.m_toneFrequency / 1000.0, 0, 'f', 2)); ui->toneFrequency->setValue(m_settings.m_toneFrequency / 10.0); ui->channelMute->setChecked(m_settings.m_channelMute); ui->playLoop->setChecked(m_settings.m_playLoop); ui->tone->setEnabled((m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputTone) || (m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputNone)); ui->mic->setEnabled((m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputAudio) || (m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputNone)); ui->play->setEnabled((m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputFile) || (m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputNone)); ui->morseKeyer->setEnabled((m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputCWTone) || (m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputNone)); ui->tone->setChecked(m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputTone); ui->mic->setChecked(m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputAudio); ui->play->setChecked(m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputFile); ui->morseKeyer->setChecked(m_settings.m_modAFInput == WFMModSettings::WFMModInputAF::WFMModInputCWTone); ui->feedbackEnable->setChecked(m_settings.m_feedbackAudioEnable); ui->feedbackVolume->setValue(roundf(m_settings.m_feedbackVolumeFactor * 100.0)); ui->feedbackVolumeText->setText(QString("%1").arg(m_settings.m_feedbackVolumeFactor, 0, 'f', 2)); getRollupContents()->restoreState(m_rollupState); updateAbsoluteCenterFrequency(); blockApplySettings(false); } void WFMModGUI::leaveEvent(QEvent* event) { m_channelMarker.setHighlighted(false); ChannelGUI::leaveEvent(event); } void WFMModGUI::enterEvent(EnterEventType* event) { m_channelMarker.setHighlighted(true); ChannelGUI::enterEvent(event); } void WFMModGUI::audioSelect(const QPoint& p) { qDebug("WFMModGUI::audioSelect"); AudioSelectDialog audioSelect(DSPEngine::instance()->getAudioDeviceManager(), m_settings.m_audioDeviceName, true); // true for input audioSelect.move(p); new DialogPositioner(&audioSelect, false); audioSelect.exec(); if (audioSelect.m_selected) { m_settings.m_audioDeviceName = audioSelect.m_audioDeviceName; applySettings(); } } void WFMModGUI::audioFeedbackSelect(const QPoint& p) { qDebug("WFMModGUI::audioFeedbackSelect"); AudioSelectDialog audioSelect(DSPEngine::instance()->getAudioDeviceManager(), m_settings.m_audioDeviceName, false); // false for output audioSelect.move(p); new DialogPositioner(&audioSelect, false); audioSelect.exec(); if (audioSelect.m_selected) { m_settings.m_feedbackAudioDeviceName = audioSelect.m_audioDeviceName; applySettings(); } } void WFMModGUI::tick() { double powDb = CalcDb::dbPower(m_wfmMod->getMagSq()); m_channelPowerDbAvg(powDb); ui->channelPower->setText(tr("%1 dB").arg(m_channelPowerDbAvg.asDouble(), 0, 'f', 1)); int audioSampleRate = m_wfmMod->getAudioSampleRate(); if (audioSampleRate != m_audioSampleRate) { if (audioSampleRate < 0) { ui->mic->setColor(QColor("red")); } else { ui->mic->resetColor(); } m_audioSampleRate = audioSampleRate; } int feedbackAudioSampleRate = m_wfmMod->getFeedbackAudioSampleRate(); if (feedbackAudioSampleRate != m_feedbackAudioSampleRate) { if (feedbackAudioSampleRate < 0) { ui->feedbackEnable->setStyleSheet("QToolButton { background-color : red; }"); } else { ui->feedbackEnable->setStyleSheet("QToolButton { background:rgb(79,79,79); }"); } m_feedbackAudioSampleRate = feedbackAudioSampleRate; } if (((++m_tickCount & 0xf) == 0) && (m_settings.m_modAFInput == WFMModSettings::WFMModInputFile)) { WFMMod::MsgConfigureFileSourceStreamTiming* message = WFMMod::MsgConfigureFileSourceStreamTiming::create(); m_wfmMod->getInputMessageQueue()->push(message); } } void WFMModGUI::updateWithStreamData() { QTime recordLength(0, 0, 0, 0); recordLength = recordLength.addSecs(m_recordLength); QString s_time = recordLength.toString("HH:mm:ss"); ui->recordLengthText->setText(s_time); updateWithStreamTime(); } void WFMModGUI::updateWithStreamTime() { int t_sec = 0; int t_msec = 0; if (m_recordSampleRate > 0) { t_msec = ((m_samplesCount * 1000) / m_recordSampleRate) % 1000; t_sec = m_samplesCount / m_recordSampleRate; } QTime t(0, 0, 0, 0); t = t.addSecs(t_sec); t = t.addMSecs(t_msec); QString s_timems = t.toString("HH:mm:ss.zzz"); QString s_time = t.toString("HH:mm:ss"); ui->relTimeText->setText(s_timems); if (!m_enableNavTime) { float posRatio = (float) t_sec / (float) m_recordLength; ui->navTimeSlider->setValue((int) (posRatio * 100.0)); } } void WFMModGUI::makeUIConnections() { QObject::connect(ui->deltaFrequency, &ValueDialZ::changed, this, &WFMModGUI::on_deltaFrequency_changed); QObject::connect(ui->rfBW, QOverload::of(&QComboBox::currentIndexChanged), this, &WFMModGUI::on_rfBW_currentIndexChanged); QObject::connect(ui->afBW, &QSlider::valueChanged, this, &WFMModGUI::on_afBW_valueChanged); QObject::connect(ui->fmDev, &QSlider::valueChanged, this, &WFMModGUI::on_fmDev_valueChanged); QObject::connect(ui->toneFrequency, &QDial::valueChanged, this, &WFMModGUI::on_toneFrequency_valueChanged); QObject::connect(ui->volume, &QDial::valueChanged, this, &WFMModGUI::on_volume_valueChanged); QObject::connect(ui->channelMute, &QToolButton::toggled, this, &WFMModGUI::on_channelMute_toggled); QObject::connect(ui->tone, &ButtonSwitch::toggled, this, &WFMModGUI::on_tone_toggled); QObject::connect(ui->morseKeyer, &ButtonSwitch::toggled, this, &WFMModGUI::on_morseKeyer_toggled); QObject::connect(ui->mic, &ButtonSwitch::toggled, this, &WFMModGUI::on_mic_toggled); QObject::connect(ui->play, &ButtonSwitch::toggled, this, &WFMModGUI::on_play_toggled); QObject::connect(ui->playLoop, &ButtonSwitch::toggled, this, &WFMModGUI::on_playLoop_toggled); QObject::connect(ui->navTimeSlider, &QSlider::valueChanged, this, &WFMModGUI::on_navTimeSlider_valueChanged); QObject::connect(ui->showFileDialog, &QPushButton::clicked, this, &WFMModGUI::on_showFileDialog_clicked); QObject::connect(ui->feedbackEnable, &QToolButton::toggled, this, &WFMModGUI::on_feedbackEnable_toggled); QObject::connect(ui->feedbackVolume, &QDial::valueChanged, this, &WFMModGUI::on_feedbackVolume_valueChanged); } void WFMModGUI::updateAbsoluteCenterFrequency() { setStatusFrequency(m_deviceCenterFrequency + m_settings.m_inputFrequencyOffset); }