Method handleCurrentModem

src/AppFrame.cpp:2427–2603

}

void AppFrame::handleCurrentModem() {

    DemodulatorInstancePtr demod = wxGetApp().getDemodMgr().getCurrentModem();

    if (demod->isTracking()) {
        if (spectrumCanvas->getViewState()) {
            long long diff =
                    abs(demod->getFrequency() - spectrumCanvas->getCenterFrequency()) + (demod->getBandwidth() / 2) +
                    (demod->getBandwidth() / 4);

            if (diff > spectrumCanvas->getBandwidth() / 2) {
                if (demod->getBandwidth() > (int) spectrumCanvas->getBandwidth()) {
                    diff = abs(demod->getFrequency() - spectrumCanvas->getCenterFrequency());
                } else {
                    diff = diff - spectrumCanvas->getBandwidth() / 2;
                }
                spectrumCanvas->moveCenterFrequency(
                        (demod->getFrequency() < spectrumCanvas->getCenterFrequency()) ? diff : -diff);
                demod->setTracking(false);
            }
        } else {
            demod->setTracking(false);
        }
    }

    if (demod->getBandwidth() != wxGetApp().getDemodMgr().getLastBandwidth()) {
        wxGetApp().getDemodMgr().setLastBandwidth(demod->getBandwidth());
    }

    if (demod.get() != activeDemodulator) {
        demodSignalMeter->setInputValue(demod->getSquelchLevel());
        demodGainMeter->setInputValue(demod->getGain());
        wxGetApp().getDemodMgr().setLastGain(demod->getGain());
        int outputDevice = demod->getOutputDevice();
        if (scopeCanvas) {
            auto outputDevices = wxGetApp().getDemodMgr().getOutputDevices();
            scopeCanvas->setDeviceName(outputDevices[outputDevice].name);
        }
//            outputDeviceMenuItems[outputDevice]->Check(true);
        string dType = demod->getDemodulatorType();
        demodModeSelector->setSelection(dType);
#ifdef ENABLE_DIGITAL_LAB
        demodModeSelectorAdv->setSelection(dType);
#endif
        deltaLockButton->setSelection(demod->isDeltaLock() ? 1 : -1);
        demodMuteButton->setSelection(demod->isMuted() ? 1 : -1);
        modemPropertiesUpdated.store(true);
        demodTuner->setHalfBand(dType == "USB" || dType == "LSB");
    }
    if (!demodWaterfallCanvas || demodWaterfallCanvas->getDragState() == WaterfallCanvas::WF_DRAG_NONE) {
        long long centerFreq = demod->getFrequency();
        unsigned int demodBw = (unsigned int) ceil((float) demod->getBandwidth() * 2.25);

        if (demod->getDemodulatorType() == "USB") {
            demodBw /= 2;
            centerFreq += demod->getBandwidth() / 4;
        }