private boolean isInDraggingArea(MouseEvent e) {
		GraphViewer<V, E> viewer = getGraphViewer(e);

		// make sure we are not over a graph or edge
		Point p = e.getPoint();
		if (GraphViewerUtils.getVertexFromPointInViewSpace(viewer, p) != null) {
			return false;
		}

		if (GraphViewerUtils.getEdgeFromPointInViewSpace(viewer, p) != null) {
			return false;
		}

		return true;
	}
Note: this class is based on {@link TranslatingGraphMousePlugin}.
<p>
TranslatingGraphMousePlugin uses a MouseButtonOne press and drag gesture to translate 
the graph display in the x and y direction. The default MouseButtonOne modifier can be overridden
to cause a different mouse gesture to translate the display.

@param <V> the vertex type
@param <E> the edge type
Ghidra/Framework/Graph/src/main/java/ghidra/graph/viewer/event/mouse/VisualGraphTranslatingGraphMousePlugin.java