/**
* Exports the current diagram to the given exporter.
*
* @param aExporter the exporter to export to, cannot be <code>null</code>.
* @param aOutputStream the output stream to write the export to, cannot be <code>null</code>.
* @throws IOException in case of I/O problems.
*/
public void exportTo(final Exporter aExporter, final OutputStream aOutputStream)
throws IOException {
if (this.mainFrame != null) {
aExporter.export(this.dataContainer, this.mainFrame.getDiagramScrollPane(), aOutputStream);
}
}
