Method sendPanDimensionsToRadio

src/gui/MainWindow_Wiring.cpp:1237–1297

}

void MainWindow::sendPanDimensionsToRadio(const QString& panId,
                                          SpectrumWidget* sw,
                                          bool updateLocalDecoderImmediately)
{
    // Raw sender for radio FFT dimensions. Normal lifecycle/resize paths must
    // call requestPanDimensionsForRadio() instead so profile loads can defer
    // these writes; sending xpixels/ypixels while the radio is rebuilding a
    // profile can make the radio autosave a partial GUIClient slice layout.
    if (panId.isEmpty() || !sw || !panPixelDimensionsReady(sw)) {
        return;
    }

    auto* pan = m_radioModel.panadapter(panId);
    if (!pan) {
        return;
    }

    const int xpix = panXpixelsFor(sw);
    const int ypix = panYpixelsFor(sw);
    m_radioModel.sendCommand(
        QString("display pan set %1 xpixels=%2 ypixels=%3")
            .arg(panId).arg(xpix).arg(ypix));

    if (profileLoadRadioStateWritesHeld()) {
        m_profileLoadPendingFftYpixels.insert(panId, ypix);
        m_profileLoadPanDimensionsSettlingUntilMs.insert(
            panId,
            QDateTime::currentMSecsSinceEpoch() + kProfileLoadDimensionSettleMs);
    }

    const quint32 streamId = pan->panStreamId();
    if (streamId) {
        QPointer<SpectrumWidget> swGuard(sw);
        auto updateLocalDecoder = [this, panId, swGuard, streamId, ypix]() {
            if (m_shuttingDown || !swGuard) {
                return;
            }
            auto* currentPan = m_radioModel.panadapter(panId);
            if (!currentPan || currentPan->panStreamId() != streamId) {
                return;
            }
            if (!panPixelDimensionsReady(swGuard.data())
                || panYpixelsFor(swGuard.data()) != ypix) {
                return;
            }
            m_radioModel.panStream()->setYPixels(streamId, ypix);
            swGuard->prepareForFftScaleChange();
        };

        if (updateLocalDecoderImmediately) {
            updateLocalDecoder();
        } else {
            // Radio status echo is the normal sync point. The delayed fallback
            // preserves resize recovery if the echo is missed, without decoding
            // queued old-height FFT frames with the new height.
            QTimer::singleShot(kPanDimensionDecoderFallbackMs,
                               this,
                               updateLocalDecoder);