getSite().getKeyBindingService().registerAction(zoomIn);
getSite().getKeyBindingService().registerAction(zoomOut);
getGraphicalViewer().setRootEditPart(root);
getGraphicalViewer().setEditPartFactory(new StatePartFactory());
getGraphicalViewer().setKeyHandler(
new GraphicalViewerKeyHandler(getGraphicalViewer())
.setParent(getCommonKeyHandler()));
ContextMenuProvider provider = new WebflowContextMenuProvider(
getGraphicalViewer(), getActionRegistry());
getGraphicalViewer().setContextMenu(provider);