Composite body = form.getBody();
body.setLayout(new FillLayout());
project = getComposerEditor().getProject();
composerProject = ComposerPlugin.getDefault().getComposerProject(project);
graphController = new GraphController(composerProject);
graphController.setComposerProject(composerProject);
viewer = new GraphViewer(body, SWT.NO_REDRAW_RESIZE);
viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
viewer.setContentProvider(graphController);
viewer.setLabelProvider(graphController);