import prefuse.action.ItemAction; //导入依赖的package包/类
StackedGraphDisplay()
{
    super( new Visualization() );

    setBackground( ColorLib.getColor( 0, 51, 88 ) );

    LabelRenderer labelRenderer = new LabelRenderer( NAME_LABEL );
    labelRenderer.setVerticalAlignment( Constants.BOTTOM );
    labelRenderer.setHorizontalAlignment( Constants.LEFT );

    EdgeRenderer usesRenderer = new EdgeRenderer( Constants.EDGE_TYPE_CURVE, Constants.EDGE_ARROW_FORWARD );
    usesRenderer.setHorizontalAlignment1( Constants.CENTER );
    usesRenderer.setHorizontalAlignment2( Constants.CENTER );
    usesRenderer.setVerticalAlignment1( Constants.BOTTOM );
    usesRenderer.setVerticalAlignment2( Constants.TOP );

    Predicate usesPredicate = (Predicate) ExpressionParser.parse( "ingroup('graph.edges') AND [" + USES_EDGES + "]==true", true );

    // set up the renderers - one for nodes and one for LABELS
    DefaultRendererFactory rf = new DefaultRendererFactory();
    rf.add( new InGroupPredicate( GRAPH_NODES ), new NodeRenderer() );
    rf.add( new InGroupPredicate( LABELS ), labelRenderer );
    rf.add( usesPredicate, usesRenderer );
    m_vis.setRendererFactory( rf );

    // border colors
    ColorAction borderColor = new BorderColorAction( GRAPH_NODES );
    ColorAction fillColor = new FillColorAction( GRAPH_NODES );

    // uses edge colors
    ItemAction usesColor = new ColorAction( GRAPH_EDGES, usesPredicate, VisualItem.STROKECOLOR, ColorLib.rgb( 50, 50, 50 ) );
    ItemAction usesArrow = new ColorAction( GRAPH_EDGES, usesPredicate, VisualItem.FILLCOLOR, ColorLib.rgb( 50, 50, 50 ) );

    // color settings
    ActionList colors = new ActionList();
    colors.add( fillColor );
    colors.add( borderColor );
    colors.add( usesColor );
    colors.add( usesArrow );
    m_vis.putAction( COLORS_ACTION, colors );

    ActionList autoPan = new ActionList();
    autoPan.add( colors );
    autoPan.add( new AutoPanAction() );
    autoPan.add( new RepaintAction() );
    m_vis.putAction( AUTO_PAN_ACTION, autoPan );

    // create the layout action list
    stackedLayout = new StackedLayout( GRAPH );
    ActionList layout = new ActionList();
    layout.add( stackedLayout );
    layout.add( new LabelLayout( LABELS ) );
    layout.add( autoPan );
    m_vis.putAction( LAYOUT_ACTION, layout );

    // initialize our display
    Dimension size = new Dimension( 400, 400 );
    setSize( size );
    setPreferredSize( size );
    setItemSorter( new ExtendedTreeDepthItemSorter( true ) );
    addControlListener( new HoverControl() );
    addControlListener( new FocusControl( 1, COLORS_ACTION ) );
    addControlListener( new WheelMouseControl() );
    addControlListener( new PanControl( true ) );
    addControlListener( new ItemSelectionControl() );

    setDamageRedraw( true );
}
 

import prefuse.action.ItemAction; //导入依赖的package包/类
@Override
public void initialiseTreeView(Tree t, Dimension size, String label, int orientation) {
    this.m_orientation = orientation;

    m_vis.add(tree, t);

    m_nodeRenderer = new LabelRenderer(null, "image");

    m_edgeRenderer = new EdgeRenderer(Constants.EDGE_TYPE_CURVE);
    m_edgeRenderer.setDefaultLineWidth(4);

    DefaultRendererFactory rf = new DefaultRendererFactory(m_nodeRenderer);
    rf.add(new InGroupPredicate(treeEdges), m_edgeRenderer);
    m_vis.setRendererFactory(rf);

    int[] colorPalette = new int[]{ColorLib.rgb(51, 51, 51), ColorLib.rgb(51, 51, 51), ColorLib.rgb(51, 51, 51)};

    DataColorAction dataColorAction = new DataColorAction("tree.nodes", "type", Constants.NOMINAL, VisualItem.TEXTCOLOR, colorPalette);

    // colors
    ItemAction nodeColor = new WorkflowNodeColorAction(treeNodes);

    m_vis.putAction("textColor", dataColorAction);

    ItemAction edgeColor = new ColorAction(treeEdges,
            VisualItem.STROKECOLOR, ColorLib.rgba(51, 51, 51, 100));

    // quick repaint
    ActionList repaint = new ActionList();
    repaint.add(nodeColor);
    repaint.add(new RepaintAction());
    m_vis.putAction("repaint", repaint);

    // full paint
    ActionList fullPaint = new ActionList();
    fullPaint.add(nodeColor);
    m_vis.putAction("fullPaint", fullPaint);

    // create the tree layout action
    NodeLinkTreeLayout treeLayout = new NodeLinkTreeLayout(tree,
            m_orientation, 80, 70, 8);
    treeLayout.setLayoutAnchor(new Point2D.Double(size.width / 2, 15));
    m_vis.putAction("treeLayout", treeLayout);

    CollapsedSubtreeLayout subLayout = new CollapsedSubtreeLayout(tree,
            m_orientation);
    m_vis.putAction("subLayout", subLayout);

    createAndAddFilter(dataColorAction, nodeColor, edgeColor, treeLayout, subLayout);
    // animated transition
    createAnimation();
    // ensure size is reasonable!
    finaliseVisualizationSteps(size);
}