import edu.uci.ics.jung.visualization.picking.MultiPickedState; //导入依赖的package包/类
/**
 * Sets the positions of the GraphNodes as configured in the HashMap.
 * @param nodes2Move the nodes2 move
 */
private void setPositions(HashMap<String, Point2D> nodes2Move) {
	
	PickedState<GraphNode> ps = new MultiPickedState<GraphNode>();
	this.visViewer.setPickedVertexState(ps);
	
	for(String nodeID : nodes2Move.keySet()) {
		GraphNode node = (GraphNode) this.graphController.getNetworkModel().getGraphElement(nodeID);
		if (node!=null) {
			node.setPosition(nodes2Move.get(nodeID));
			this.visViewer.getGraphLayout().setLocation(node, node.getPosition());
			ps.pick(node, true);	
		}
	}
	
	this.sendNodesMovedNotification();
}
 

import edu.uci.ics.jung.visualization.picking.MultiPickedState; //导入依赖的package包/类
/**
	 * Create an instance with passed parameters.
	 * 
	 * @param model
	 * @param renderer
	 * @param preferredSize initial preferred size of the view
	 */
	@SuppressWarnings("unchecked")
    public BasicVisualizationServer(VisualizationModel<V,E> model,
	        Dimension preferredSize) {
	    this.model = model;
//        renderContext.setScreenDevice(this);
	    model.addChangeListener(this);
	    setDoubleBuffered(false);
		this.addComponentListener(new VisualizationListener(this));

		setPickSupport(new ShapePickSupport<V,E>(this));
		setPickedVertexState(new MultiPickedState<V>());
		setPickedEdgeState(new MultiPickedState<E>());
        
        renderContext.setEdgeDrawPaintTransformer(new PickableEdgePaintTransformer<E>(getPickedEdgeState(), Color.black, Color.cyan));
        renderContext.setVertexFillPaintTransformer(new PickableVertexPaintTransformer<V>(getPickedVertexState(), 
                Color.red, Color.yellow));
		
		setPreferredSize(preferredSize);
		renderingHints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

        renderContext.getMultiLayerTransformer().addChangeListener(this);
	}
 

import edu.uci.ics.jung.visualization.picking.MultiPickedState; //导入依赖的package包/类
public void SetPickedStates(Set<String> vertexes) {
    PickedState<String> ps = new MultiPickedState<String>();
    Iterator it = vertexes.iterator();
    while (it.hasNext()) {
        Object element = it.next();
        ps.pick(element.toString(), true);
    }
    vv.setPickedVertexState(ps);
}
 

import edu.uci.ics.jung.visualization.picking.MultiPickedState; //导入依赖的package包/类
public void SetPickedState(String vertex) {
    PickedState<String> ps = new MultiPickedState<String>();
    ps.pick(vertex, true);
    vv.setPickedVertexState(ps);
}
 

import edu.uci.ics.jung.visualization.picking.MultiPickedState; //导入依赖的package包/类
public void SetEdgePickedState(String edge) {
    PickedState<String> ps = new MultiPickedState<String>();
    ps.pick(edge, true);
    vv.setPickedEdgeState(ps);
}