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The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This version represents the developer version, the "bleeding edge" of development, you could say. New functionality gets added to this version.
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/*
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see .
 */

/*
 *    GraphViewer.java
 *    Copyright (C) 2002-2012 University of Waikato, Hamilton, New Zealand
 *
 */

package weka.gui.beans;

import java.awt.BorderLayout;
import java.awt.GraphicsEnvironment;
import java.awt.event.MouseEvent;
import java.beans.VetoableChangeListener;
import java.beans.beancontext.BeanContext;
import java.beans.beancontext.BeanContextChild;
import java.beans.beancontext.BeanContextChildSupport;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Enumeration;
import java.util.Vector;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;

import weka.core.Drawable;
import weka.gui.ResultHistoryPanel;
import weka.gui.graphvisualizer.BIFFormatException;
import weka.gui.graphvisualizer.GraphVisualizer;
import weka.gui.treevisualizer.PlaceNode2;
import weka.gui.treevisualizer.TreeVisualizer;

/**
 * A bean encapsulating weka.gui.treevisualize.TreeVisualizer
 * 
 * @author Mark Hall
 * @version $Revision: 10220 $
 */
public class GraphViewer extends JPanel implements Visible, GraphListener,
  UserRequestAcceptor, Serializable, BeanContextChild {

  /** for serialization */
  private static final long serialVersionUID = -5183121972114900617L;

  protected BeanVisual m_visual;

  private transient JFrame m_resultsFrame = null;

  protected transient ResultHistoryPanel m_history;

  /**
   * BeanContex that this bean might be contained within
   */
  protected transient BeanContext m_beanContext = null;

  /**
   * BeanContextChild support
   */
  protected BeanContextChildSupport m_bcSupport = new BeanContextChildSupport(
    this);

  /**
   * True if this bean's appearance is the design mode appearance
   */
  protected boolean m_design;

  public GraphViewer() {
    /*
     * setUpResultHistory(); setLayout(new BorderLayout()); add(m_visual,
     * BorderLayout.CENTER);
     */

    if (!GraphicsEnvironment.isHeadless()) {
      appearanceFinal();
    }
  }

  protected void appearanceDesign() {
    setUpResultHistory();
    removeAll();
    m_visual = new BeanVisual("GraphViewer", BeanVisual.ICON_PATH
      + "DefaultGraph.gif", BeanVisual.ICON_PATH + "DefaultGraph_animated.gif");
    setLayout(new BorderLayout());
    add(m_visual, BorderLayout.CENTER);
  }

  protected void appearanceFinal() {
    removeAll();
    setLayout(new BorderLayout());
    setUpFinal();
  }

  protected void setUpFinal() {
    setUpResultHistory();
    add(m_history, BorderLayout.CENTER);
  }

  /**
   * Global info for this bean
   * 
   * @return a String value
   */
  public String globalInfo() {
    return "Graphically visualize trees or graphs produced by classifiers/clusterers.";
  }

  private void setUpResultHistory() {
    if (m_history == null) {
      m_history = new ResultHistoryPanel(null);
    }
    m_history.setBorder(BorderFactory.createTitledBorder("Graph list"));
    m_history.setHandleRightClicks(false);
    m_history.getList().addMouseListener(
      new ResultHistoryPanel.RMouseAdapter() {
        /** for serialization */
        private static final long serialVersionUID = -4984130887963944249L;

        @Override
        public void mouseClicked(MouseEvent e) {
          int index = m_history.getList().locationToIndex(e.getPoint());
          if (index != -1) {
            String name = m_history.getNameAtIndex(index);
            doPopup(name);
          }
        }
      });
  }

  /**
   * Set a bean context for this bean
   * 
   * @param bc a BeanContext value
   */
  @Override
  public void setBeanContext(BeanContext bc) {
    m_beanContext = bc;
    m_design = m_beanContext.isDesignTime();
    if (m_design) {
      appearanceDesign();
    } else {
      if (!GraphicsEnvironment.isHeadless()) {
        appearanceFinal();
      }
    }
  }

  /**
   * Return the bean context (if any) that this bean is embedded in
   * 
   * @return a BeanContext value
   */
  @Override
  public BeanContext getBeanContext() {
    return m_beanContext;
  }

  /**
   * Add a vetoable change listener to this bean
   * 
   * @param name the name of the property of interest
   * @param vcl a VetoableChangeListener value
   */
  @Override
  public void addVetoableChangeListener(String name, VetoableChangeListener vcl) {
    m_bcSupport.addVetoableChangeListener(name, vcl);
  }

  /**
   * Remove a vetoable change listener from this bean
   * 
   * @param name the name of the property of interest
   * @param vcl a VetoableChangeListener value
   */
  @Override
  public void removeVetoableChangeListener(String name,
    VetoableChangeListener vcl) {
    m_bcSupport.removeVetoableChangeListener(name, vcl);
  }

  /**
   * Accept a graph
   * 
   * @param e a GraphEvent value
   */
  @Override
  public synchronized void acceptGraph(GraphEvent e) {

    ArrayList