Method go_vDialPre

DSView/pv/view/dsosignal.cpp:178–211

}

bool DsoSignal::go_vDialPre(bool manul)
{  
    if (_autoV && manul)
        autoV_end(); 

    if (enabled() && !_vDial->isMin()) 
    {
        if (session->is_running_status())
            session->refresh(RefreshShort);

        const double pre_vdiv = _vDial->get_value();
        _vDial->set_sel(_vDial->get_sel() - 1);

        session->get_device()->set_config_uint64(SR_CONF_PROBE_VDIV,
                              _vDial->get_value(), _probe, NULL);

        if (session->is_stopped_status()) {
            set_stop_scale(_stop_scale * (pre_vdiv/_vDial->get_value()));
            set_scale(get_view_rect().height());
        }
        session->get_device()->set_config_uint16(SR_CONF_PROBE_OFFSET,
                              _zero_offset, _probe, NULL);

        _view->vDial_updated();
        _view->set_update(_viewport, true);
        _view->update();
        return true;
    }
    else {
        if (_autoV && !_autoV_over)
            autoV_end();
        return false;
    }
}

bool DsoSignal::go_vDialNext(bool manul)
{