Method mouseDoubleClickEvent

src/gui/SpectrumWidget.cpp:7229–7272

}

void SpectrumWidget::mouseDoubleClickEvent(QMouseEvent* ev)
{
    const int chromeH  = freqScaleH() + DIVIDER_H;
    const int contentH = height() - chromeH;
    const int specH = static_cast<int>(contentH * m_spectrumFrac);
    const int wfY = specH + DIVIDER_H + freqScaleH();
    const int y = static_cast<int>(ev->position().y());
    const int mx = static_cast<int>(ev->position().x());
    const int rightStripW = (y >= wfY) ? waterfallStripWidth() : DBM_STRIP_W;

    // Consume double-clicks on the dBm and time strips
    if (mx >= width() - rightStripW) {
        ev->accept();
        return;
    }

    // Double-click on off-screen slice indicator → recenter on that slice
    for (int oi = 0; oi < m_offScreenRects.size(); ++oi) {
        if (!m_offScreenRects[oi].isNull() && m_offScreenRects[oi].contains(QPoint(mx, y))) {
            m_centerMhz = m_sliceOverlays[oi].freqMhz;
            markOverlayDirty();
            emit centerChangeRequested(m_centerMhz);
            // Suppress the second mouseRelease's single-click-to-tune emit
            // (Qt fires Press → Release → DoubleClick → Release; without this
            // flag the trailing release would re-tune against the new
            // center, landing roughly bandwidth/2 away from the slice). #2237
            m_spotClickConsumed = true;
            ev->accept();
            return;
        }
    }

    // Double-click in FFT or waterfall → tune to clicked frequency
    if (y < specH || y >= wfY) {
        const double startMhz = m_centerMhz - m_bandwidthMhz / 2.0;
        double rawMhz = startMhz + (ev->position().x() / width()) * m_bandwidthMhz;

        emit frequencyClicked(snapToStep(rawMhz, m_stepHz));
        ev->accept();
        return;
    }

    QWidget::mouseDoubleClickEvent(ev);
}

void SpectrumWidget::leaveEvent(QEvent* event)
{