import prefuse.action.filter.GraphDistanceFilter; //导入依赖的package包/类
/**
	 * Initializes colors, force, ... Actions.
	 */
	protected void setActions(){
		// DRAW_ACTIONS: node and edge color actions
		ColorAction nodeStroke = new ColorAction(NODES, VisualItem.STROKECOLOR);
		nodeStroke.setDefaultColor(ColorLib.gray(0)); 
		nodeStroke.add(VisualItem.HOVER, ColorLib.gray(0));			
		ColorAction edgeStroke = new ColorAction(EDGES, VisualItem.STROKECOLOR);
		edgeStroke.setDefaultColor(ColorLib.gray(0));
		ColorAction edgeFill = new ColorAction(EDGES, VisualItem.FILLCOLOR);
		edgeFill.setDefaultColor(ColorLib.gray(0));		
//		DataSizeAction edgeWidth = new DataSizeAction(EDGES, EDGE_WEIGHT);
		// bundle the node and edge color actions
		ActionList nodeEdgeList = new ActionList();
		nodeEdgeList.add(new NodeColorAction(NODES));
		nodeEdgeList.add(new ColorAction(NODES, VisualItem.TEXTCOLOR, ColorLib.gray(0)));
		nodeEdgeList.add(nodeStroke);
		nodeEdgeList.add(edgeStroke);		
		nodeEdgeList.add(edgeFill);
		//nodeEdgeList.add(edgeWidth); //paint edges width depends on weight
		nodeEdgeList.add(new RepaintAction());
		// we register our actions
		m_vis.putAction(Actions.DRAW.name(), nodeEdgeList);
		// now create the main layout routine
		ActionList layoutList = new ActionList(Activity.INFINITY);	
//		ActionList layoutList = new ActionList(Activity.DEFAULT_STEP_TIME);	
		distanceFilter = new GraphDistanceFilter(GRAPH, MAX_HOPS);
		layoutList.add(distanceFilter);			
		m_forceLayout = new ForceDirectedLayout(GRAPH, false);
//		m_forceLayout = new FruchtermanReingoldLayout(GRAPH);
		layoutList.add(m_forceLayout);  
		layoutList.add(new RepaintAction());
		// we register	
		m_vis.putAction(Actions.LAYOUT.name(), layoutList);
		m_vis.runAfter(Actions.DRAW.name(), Actions.LAYOUT.name());	
		// Actions aggregate color and layout
		ActionList aggrList = new ActionList(Activity.INFINITY);	
		aggrList.add(m_aggregateLayout);
		aggrList.add(new LabelLayout(AGGR_DECORATORS));	
		ColorAction aggrStroke = new ColorAction(AGGRS, VisualItem.STROKECOLOR);
		aggrStroke.setDefaultColor(ColorLib.gray(0));
		aggrStroke.add(VisualItem.HOVER, ColorLib.rgb(255,100,100));    

		aggrList.add(aggrStroke);
		m_aggrs_color = new DataColorAction(AGGRS, AGGRS_ID, Constants.ORDINAL, VisualItem.FILLCOLOR);

		aggrList.add(m_aggrs_color);
		aggrList.add(new RepaintAction());
		// we register	
		m_vis.putAction(Actions.AGGR.name(), aggrList);	
	}
 

import prefuse.action.filter.GraphDistanceFilter; //导入依赖的package包/类
private void initialiseGraphView(Graph g, String label, int orientation, Dimension size) {
    setSize(size);
    m_vis = new Visualization();
    m_vis.addFocusGroup("selected");
    m_vis.addFocusGroup("highlighted");

    MultiScaleLabelRenderer tr = new MultiScaleLabelRenderer("value", label.contains("image") ? label : null);
    tr.setImagePosition(Constants.TOP);
    m_vis.setRendererFactory(new DefaultRendererFactory(tr));

    // adds graph to visualization and sets renderer label field
    setGraph(g);

    int hops = Integer.MAX_VALUE;
    final GraphDistanceFilter filter = new GraphDistanceFilter(graph, hops);

    FontAction font = new FontAction(nodes, UIHelper.VER_8_PLAIN);

    ColorAction fill = new ColorAction(nodes, VisualItem.FILLCOLOR, ColorLib.rgb(255, 255, 255));
    fill.add("ingroup('highlighted')", ColorLib.rgb(241, 242, 242));
    fill.add("ingroup('selected')", ColorLib.rgb(241, 242, 242));


    ColorAction stroke = new ColorAction(nodes, VisualItem.STROKECOLOR, backgroundColor);
    StrokeAction strokeWeight = new StrokeAction(nodes, StrokeLib.getStroke(3f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND));
    stroke.add("ingroup('highlighted')", ColorLib.rgb(224, 228, 204));
    stroke.add("ingroup('selected')", ColorLib.rgb(202, 106, 33));

    ActionList draw = new ActionList(500);
    draw.add(font);
    draw.add(filter);
    draw.add(fill);
    draw.add(stroke);
    draw.add(strokeWeight);
    draw.add(new ColorAction(nodes, VisualItem.TEXTCOLOR, ColorLib.rgb(109, 110, 113)));
    draw.add(new ColorAction(edges, VisualItem.FILLCOLOR, ColorLib.gray(200)));
    draw.add(new ColorAction(edges, VisualItem.STROKECOLOR, ColorLib.gray(200)));
    draw.add(new RepaintAction());

    ActionList animate = new ActionList();

    NodeLinkTreeLayout layout = new NodeLinkTreeLayout(graph);
    layout.setDepthSpacing(80);
    layout.setBreadthSpacing(70);
    layout.setOrientation(orientation);

    animate.add(new QualityControlAnimator());
    animate.add(new LocationAnimator(nodes));
    animate.add(layout);

    m_vis.putAction("draw", draw);
    m_vis.putAction("layout", animate);

    // set up a display to show the visualization
    display = new Display(m_vis);
    display.setSize(size);

    // main display controls
    display.addControlListener(new PanControl());
    display.addControlListener(new ZoomControl());
    display.addControlListener(new WheelZoomControl());
    display.addControlListener(new ZoomToFitControl());

    // now we run our action list
    m_vis.run("draw");
    m_vis.run("layout");

    add(display);
}