Function updateScrollbar

src/openms_gui/source/VISUAL/PlotWidget.cpp:221–242

  }

  void updateScrollbar(QScrollBar* scroll, float f_min, float disp_min, float disp_max, float f_max)
  {
    if ((disp_min == f_min && disp_max == f_max) || (disp_min < f_min && disp_max > f_max))
    {
      scroll->hide();
    }
    else
    {
      // block signals as this causes repainting due to rounding (QScrollBar works with int ...)
      auto local_min = min(f_min, disp_min);
      auto local_max = max(f_max, disp_max);
      auto vis_span = disp_max - disp_min;
      scroll->blockSignals(true);
      //scroll->setMinimum(static_cast<int>(local_min));
      //scroll->setMaximum(static_cast<int>(std::ceil(local_max - disp_max + disp_min)));
      scroll->setRange(int(local_min), int(std::ceil(local_max - vis_span)));
      scroll->setValue(int(disp_min)); // emits valueChanged, which will call this function here unless signal is blocked
      scroll->setPageStep(vis_span);
      scroll->blockSignals(false);
      scroll->show();
    }
  }

  void PlotWidget::updateHScrollbar(float f_min, float disp_min, float disp_max, float f_max)
  {