void unsetup(ExporterVNA exporter) {
   exporter.setExportAttributes(exportAttributesCheckBox.isSelected());
   exporter.setExportColor(exportColorsCheckBox.isSelected());
   exporter.setExportCoords(exportCoordsCheckBox.isSelected());
   exporter.setExportEdgeWeight(exportEdgeWeightCheckBox.isSelected());
   exporter.setExportShortLabel(exportLabelCheckBox.isSelected());
   exporter.setExportSize(exportSizeCheckBox.isSelected());
   exporter.setNormalize(normalizeCheckBox.isSelected());
 }
 void setup(ExporterVNA exporter) {
   // get
   //   exportColorsCheckBox.setSelected(exporter.isExportColor());
   exportColorsCheckBox.setSelected(exporter.isExportColor());
   exportEdgeWeightCheckBox.setSelected(exporter.isExportEdgeWeight());
   exportLabelCheckBox.setSelected(exporter.isExportShortLabel());
   exportAttributesCheckBox.setSelected(exporter.isExportAttributes());
   exportCoordsCheckBox.setSelected(exporter.isExportCoords());
   exportSizeCheckBox.setSelected(exporter.isExportSize());
   normalizeCheckBox.setSelected(exporter.isNormalize());
 }