Canvas c = new Canvas(parent, SWT.DOUBLE_BUFFERED);

Figure root = new Figure();

LightweightSystem lws = new LightweightSystem(c);
lws.setContents(root);

XYGraph xyGraph = new XYGraph();
XYGraphToolbar xyGraphToolbar = new XYGraphToolbar(xyGraph, XYGraphFlags.COMBINED_ZOOM);

...

Figure toolbar = new Figure();
ToolbarLayout toolbarLayout = new ToolbarLayout();
toolbar.setLayoutManager(toolbarLayout);

Figure header = createHeader();
toolbar.add(header);
toolbar.add(xyGraphToolbar);

root.add(toolbar);
root.add(xyGraph);