Method mode_changed

DSView/pv/view/view.cpp:669–674

}

void View::mode_changed()
{
    if (_device_agent->is_virtual())
        _scale = WellSamplesPerPixel * 1.0 / _session->cur_snap_samplerate();
    _scale = max(min(_scale, _maxscale), _minscale);
}

void View::signals_changed(const Trace* eventTrace)
{