/** Creates the menu GUI contributions */
private void createMenu() {
MenuManager mm = new MenuManager();
graphViewer.getGraphControl().setMenu(mm.createContextMenu(graphViewer.getGraphControl()));
mm.add(toggleOpen);
// mm.add(hideNode);
// mm.add(showChilds);
mm.add(new Separator());
mm.add(showRoot);
getSite().registerContextMenu(mm, graphViewer);
IMenuManager imm = getViewSite().getActionBars().getMenuManager();
imm.add(refresh);
group.fillContextMenu(imm);
imm.add(new Separator());
imm.add(zoom);
imm.add(saveImage);
}
