/*
* 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 2 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* GraphViewer.java
* Copyright (C) 2002 University of Waikato, Hamilton, New Zealand
*
*/
package weka.gui.beans;
import weka.core.Drawable;
import weka.core.FastVector;
import weka.gui.ResultHistoryPanel;
import weka.gui.graphvisualizer.BIFFormatException;
import weka.gui.graphvisualizer.GraphVisualizer;
import weka.gui.treevisualizer.PlaceNode2;
import weka.gui.treevisualizer.TreeVisualizer;
import java.awt.BorderLayout;
import java.awt.event.MouseEvent;
import java.io.Serializable;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Enumeration;
import java.util.Vector;
import java.beans.beancontext.BeanContext;
import java.beans.beancontext.BeanContextChild;
import java.beans.beancontext.BeanContextChildSupport;
import java.beans.PropertyChangeListener;
import java.beans.VetoableChangeListener;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
/**
* A bean encapsulating weka.gui.treevisualize.TreeVisualizer
*
* @author <a href="mailto:mhall@cs.waikato.ac.nz">Mark Hall</a>
* @version $Revision: 1.9 $
*/
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); */
java.awt.GraphicsEnvironment ge =
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment();
if (!ge.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 <code>String</code> 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;
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 <code>BeanContext</code> value
*/
public void setBeanContext(BeanContext bc) {
m_beanContext = bc;
m_design = m_beanContext.isDesignTime();
if (m_design) {
appearanceDesign();
} else {
java.awt.GraphicsEnvironment ge =
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment();
if (!ge.isHeadless()){
appearanceFinal();
}
}
}
/**
* Return the bean context (if any) that this bean is embedded in
*
* @return a <code>BeanContext</code> value
*/
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 <code>VetoableChangeListener</code> value
*/
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 <code>VetoableChangeListener</code> value
*/
public void removeVetoableChangeListener(String name,
VetoableChangeListener vcl) {
m_bcSupport.removeVetoableChangeListener(name, vcl);
}
/**
* Accept a graph
*
* @param e a <code>GraphEvent</code> value
*/
public synchronized void acceptGraph(GraphEvent e) {
FastVector graphInfo = new FastVector();
if (m_history == null) {
setUpResultHistory();
}
String name = (new SimpleDateFormat("HH:mm:ss - ")).format(new Date());
name += e.getGraphTitle();
graphInfo.addElement(new Integer(e.getGraphType()));
graphInfo.addElement(e.getGraphString());
m_history.addResult(name, new StringBuffer());
m_history.addObject(name, graphInfo);
}
/**
* Set the visual appearance of this bean
*
* @param newVisual a <code>BeanVisual</code> value
*/
public void setVisual(BeanVisual newVisual) {
m_visual = newVisual;
}
/**
* Get the visual appearance of this bean
*
*/
public BeanVisual getVisual() {
return m_visual;
}
/**
* Use the default visual appearance
*
*/
public void useDefaultVisual() {
m_visual.loadIcons(BeanVisual.ICON_PATH+"DefaultGraph.gif",
BeanVisual.ICON_PATH+"DefaultGraph_animated.gif");
}
/**
* Popup a result list from which the user can select a graph to view
*
*/
public void showResults() {
if (m_resultsFrame == null) {
if (m_history == null) {
setUpResultHistory();
}
m_resultsFrame = new JFrame("Graph Viewer");
m_resultsFrame.getContentPane().setLayout(new BorderLayout());
m_resultsFrame.getContentPane().add(m_history, BorderLayout.CENTER);
m_resultsFrame.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
m_resultsFrame.dispose();
m_resultsFrame = null;
}
});
m_resultsFrame.pack();
m_resultsFrame.setVisible(true);
} else {
m_resultsFrame.toFront();
}
}
private void doPopup(String name) {
FastVector graph;
String grphString;
int grphType;
graph = (FastVector)m_history.getNamedObject(name);
grphType = ((Integer)graph.firstElement()).intValue();
grphString = (String)graph.lastElement();
if(grphType == Drawable.TREE){
final javax.swing.JFrame jf =
new javax.swing.JFrame("Weka Classifier Tree Visualizer: "+name);
jf.setSize(500,400);
jf.getContentPane().setLayout(new BorderLayout());
TreeVisualizer tv =
new TreeVisualizer(null,
grphString,
new PlaceNode2());
jf.getContentPane().add(tv, BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
}
});
jf.setVisible(true);
}
if(grphType == Drawable.BayesNet) {
final javax.swing.JFrame jf =
new javax.swing.JFrame("Weka Classifier Graph Visualizer: "+name);
jf.setSize(500,400);
jf.getContentPane().setLayout(new BorderLayout());
GraphVisualizer gv =
new GraphVisualizer();
try {
gv.readBIF(grphString);
}
catch (BIFFormatException be) {
System.err.println("unable to visualize BayesNet"); be.printStackTrace();
}
gv.layoutGraph();
jf.getContentPane().add(gv, BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
}
});
jf.setVisible(true);
}
}
/**
* Return an enumeration of user requests
*
* @return an <code>Enumeration</code> value
*/
public Enumeration enumerateRequests() {
Vector newVector = new Vector(0);
newVector.addElement("Show results");
return newVector.elements();
}
/**
* Perform the named request
*
* @param request a <code>String</code> value
* @exception IllegalArgumentException if an error occurs
*/
public void performRequest(String request)
{
if (request.compareTo("Show results") == 0) {
showResults();
} else {
throw new
IllegalArgumentException(request
+ " not supported (GraphViewer)");
}
}
}