private boolean useMouseRelativeZoom(VisualizationServer<?, ?> vv) {

		if (!(vv instanceof GraphViewer)) {
			return true;
		}
		GraphViewer<?, ?> graphViewer = (GraphViewer<?, ?>) vv;
		return graphViewer.useMouseRelativeZoom();
	}
An implementation of {@link ScalingControl} that allows us to zoom in and out of the view.
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/VisualGraphScalingControl.java