Method restoreBandState

src/gui/MainWindow.cpp:7857–7898

}

void MainWindow::restoreBandState(const BandSnapshot& snap)
{
    m_updatingFromModel = true;
    if (auto* s = activeSlice()) {
        s->setMode(snap.mode);
        TuneCenteringResult result;
        if (auto* pan = m_radioModel.panadapter(s->panId())) {
            result.oldCenterMhz = pan->centerMhz();
            result.bandwidthMhz = pan->bandwidthMhz();
        }
        result.newCenterMhz = snap.frequencyMhz;
        result.followRevealTriggered = true;
        result.hardCenterUsed = true;
        logTunePolicyDecision("restore-band-state", TuneIntent::AbsoluteJump,
                              s->frequency(), snap.frequencyMhz, result);
        s->tuneAndRecenter(snap.frequencyMhz);
        if (!snap.rxAntenna.isEmpty())
            s->setRxAntenna(snap.rxAntenna);
        s->setFilterWidth(snap.filterLow, snap.filterHigh);
        if (!snap.agcMode.isEmpty())
            s->setAgcMode(snap.agcMode);
        s->setAgcThreshold(snap.agcThreshold);
    }
    if (auto* pan = m_radioModel.activePanadapter()) {
        // Don't push center or bandwidth — slice tune recenters the pan and
        // the radio determines bandwidth. Pushing stale saved values causes
        // FFT/waterfall misalignment during the transition (#279, #291).
        // Only restore dBm scale (client-side display preference).
        m_radioModel.sendCommand(
            QString("display pan set %1 min_dbm=%2 max_dbm=%3").arg(pan->panId())
                .arg(static_cast<double>(snap.minDbm), 0, 'f', 2)
                .arg(static_cast<double>(snap.maxDbm), 0, 'f', 2));
    }
    m_radioModel.setPanRfGain(snap.rfGain);
    m_radioModel.setPanWnb(snap.wnbOn);
    if (auto* sw = spectrum()) {
        sw->setSpectrumFrac(snap.spectrumFrac);
        sw->setRfGain(snap.rfGain);
        sw->setWnbActive(snap.wnbOn);
    }
    m_updatingFromModel = false;
}

SliceModel* MainWindow::swrSweepTargetSlice(int requestedSliceId) const
{