[jgrapht-users] DirectedGraph and JAdapter

[<jl...@ol...>]

I am a new JGraph user and I am having trouble drawing my JGraph.  I 
have simply tried editing the JGraphAdapterDemo to use a DirectedGraph 
instead of ListenableDirected Graph...but it won't work.  What am I 
missing?

import java.awt.*;
import java.awt.geom.*;


import javax.swing.*;


import org.jgraph.*;
import org.jgraph.graph.*;


import org.jgrapht.*;
import org.jgrapht.ext.*;
import org.jgrapht.graph.*;


// resolve ambiguity
import org.jgrapht.graph.DefaultEdge;


public class GraphAdapterDemo1
    extends JApplet
{
    //~ Static fields/initializers 
---------------------------------------------


    private static final long serialVersionUID = 4049071636005206066L;
    private static final Color DEFAULT_BG_COLOR = 
Color.decode("#FAFBFF");
    private static final Dimension DEFAULT_SIZE = new Dimension(530, 
320);


 private JGraphModelAdapter<String, DefaultEdge> jgAdapter;


 public static void main(String [] args)
    {
        GraphAdapterDemo1 applet = new GraphAdapterDemo1();
        applet.init();


        JFrame frame = new JFrame();
        frame.getContentPane().add(applet);
        frame.setTitle("JGraphT Adapter to JGraph Demo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }


public void init()
    {
        // create a JGraphT graph
        DirectedGraph<String, DefaultEdge> g =
            new DirectedMultigraph<String, DefaultEdge>(
                DefaultEdge.class);


        // create a visualization using JGraph, via an adapter
        jgAdapter = new JGraphModelAdapter<String, DefaultEdge>(g);


        JGraph jgraph = new JGraph(jgAdapter);


        adjustDisplaySettings(jgraph);
        getContentPane().add(jgraph);
        resize(DEFAULT_SIZE);


     String v1 = "v1";
        String v2 = "v2";
        String v3 = "v3";
        String v4 = "v4";


        // add some sample data (graph manipulated via JGraphT)
        g.addVertex(v1);
        g.addVertex(v2);
        g.addVertex(v3);
        g.addVertex(v4);


        g.addEdge(v1, v2);
        g.addEdge(v2, v3);
        g.addEdge(v3, v1);
        g.addEdge(v4, v3);


        // position vertices nicely within JGraph component
        positionVertexAt(v1, 130, 40);
        positionVertexAt(v2, 60, 200);
        positionVertexAt(v3, 310, 230);
        positionVertexAt(v4, 380, 70);


}


private void adjustDisplaySettings(JGraph jg)
    {
        jg.setPreferredSize(DEFAULT_SIZE);


        Color c = DEFAULT_BG_COLOR;
        String colorStr = null;


        try {
            colorStr = getParameter("bgcolor");
        } catch (Exception e) {
        }


        if (colorStr != null) {
            c = Color.decode(colorStr);
        }


        jg.setBackground(c);
    }


    @SuppressWarnings("unchecked") // FIXME hb 28-nov-05: See FIXME 
below
    private void positionVertexAt(Object vertex, int x, int y)
    {
        DefaultGraphCell cell = jgAdapter.getVertexCell(vertex);
        AttributeMap attr = cell.getAttributes();
        Rectangle2D bounds = GraphConstants.getBounds(attr);


        Rectangle2D newBounds =
            new Rectangle2D.Double(
                x,
                y,
                bounds.getWidth(),
                bounds.getHeight());


        GraphConstants.setBounds(attr, newBounds);


        // TODO: Clean up generics once JGraph goes generic
        AttributeMap cellAttr = new AttributeMap();
        cellAttr.put(cell, attr);
        jgAdapter.edit(cellAttr, null, null, null);
    }


}