HSIDisplay.cc

    if (zControlKnown && zControlEnabled) {
        // Draw the circle
        QPen circlePen(Qt::SolidLine);
        circlePen.setWidth(refLineWidthToPen(0.5f));
        circlePen.setColor(color);
        painter->setBrush(Qt::NoBrush);
        painter->setPen(circlePen);
        drawCircle(xRef, yRef, radius, 200.0f, color, painter);
        //drawCircle(xRef, yRef, radius, 200.0f, 170.0f, 1.0f, color, painter);

        //    // Draw the value
        //    QString label;
        //    label.sprintf("%05.1f", value);
        //    paintText(label, color, 4.5f, xRef-7.5f, yRef-2.0f, painter);
    }
}

void HSIDisplay::wheelEvent(QWheelEvent* event)
{
    double zoomScale = 0.005; // Scaling of zoom value
    if(event->delta() > 0) {
        // Reduce width -> Zoom in
        metricWidth -= event->delta() * zoomScale;
    } else {
        // Increase width -> Zoom out
        metricWidth -= event->delta() * zoomScale;
    }
    metricWidth = qBound(0.1, metricWidth, 9999.0);
    emit metricWidthChanged(metricWidth);
}

void HSIDisplay::showEvent(QShowEvent* event)
{
    // React only to internal (pre-display)
    // events
    Q_UNUSED(event) {
        refreshTimer->start(updateInterval);
    }
}

void HSIDisplay::hideEvent(QHideEvent* event)
{
    // React only to internal (post-display)
    // events
    Q_UNUSED(event) {
        refreshTimer->stop();
    }
}

void HSIDisplay::updateJoystick(double roll, double pitch, double yaw, double thrust, int xHat, int yHat)
{
    Q_UNUSED(roll);
    Q_UNUSED(pitch);
    Q_UNUSED(yaw);
    Q_UNUSED(thrust);
    Q_UNUSED(xHat);
    Q_UNUSED(yHat);
}

void HSIDisplay::pressKey(int key)
{
    Q_UNUSED(key);
}