if (roiOnOff) abstraction.addRoiCanvas(false);
if (roiOnOff) imageInspector.getManager().setLensEnabled(false);
    public void showInspector()    {        if (imageInspector == null)            imageInspector = new ImageInspector(this, presentation.getCanvas(),                                             magFactor);        UIUtilities.centerAndShow(imageInspector);        if (roiOnOff) abstraction.addRoiCanvas(false);    }