this.determineRootNodes();
}
protected AbstractGuiComponent<Operator> drawPanel(final GraphWrapper gw, final VisualGraphOperatorWithPrefix parent, final Color bgColor) {
final VisualGraphOperatorWithPrefix recursiveQueryGraph = parent.newInstance(parent.visualEditor, parent.prefix);
parent.addChildComponent(recursiveQueryGraph);
final JPanel panel = recursiveQueryGraph.createGraph(
gw.getContainerElements(),
Arrange.values()[0]);
this.panel = new ContainerPanel(this, gw, panel, recursiveQueryGraph, parent);
this.panel.setBorder(new LineBorder(bgColor));