control  = new RenderingAgtCtrl(this); presentation = new RenderingAgtUIF(control, registry, imageName);
presentation = new RenderingAgtUIF(control, registry, curImageName);
    private void buildPresentation(String imageName)    {        control  = new RenderingAgtCtrl(this);        presentation = new RenderingAgtUIF(control, registry, imageName);        control.setPresentation(presentation);    }