/*
* 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.
*/
/*
* DataVisualizer.java
* Copyright (C) 2002 University of Waikato, Hamilton, New Zealand
*
*/
package weka.gui.beans;
import weka.core.Instances;
import weka.gui.visualize.PlotData2D;
import weka.gui.visualize.VisualizePanel;
import java.awt.BorderLayout;
import java.beans.PropertyChangeListener;
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.util.Enumeration;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JPanel;
/**
* Bean that encapsulates weka.gui.visualize.VisualizePanel
*
* @author <a href="mailto:mhall@cs.waikato.ac.nz">Mark Hall</a>
* @version $Revision: 5284 $
*/
public class DataVisualizer extends JPanel
implements DataSourceListener, TrainingSetListener,
TestSetListener, Visible, UserRequestAcceptor, Serializable,
BeanContextChild {
/** for serialization */
private static final long serialVersionUID = 1949062132560159028L;
protected BeanVisual m_visual;
protected transient Instances m_visualizeDataSet;
protected transient JFrame m_popupFrame;
protected boolean m_framePoppedUp = false;
/**
* True if this bean's appearance is the design mode appearance
*/
protected boolean m_design;
/**
* BeanContex that this bean might be contained within
*/
protected transient BeanContext m_beanContext = null;
private VisualizePanel m_visPanel;
/**
* Objects listening for data set events
*/
private Vector m_dataSetListeners = new Vector();
/**
* BeanContextChild support
*/
protected BeanContextChildSupport m_bcSupport =
new BeanContextChildSupport(this);
public DataVisualizer() {
java.awt.GraphicsEnvironment ge =
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment();
if (!ge.isHeadless()) {
appearanceFinal();
}
}
/**
* Global info for this bean
*
* @return a <code>String</code> value
*/
public String globalInfo() {
return "Visualize incoming data/training/test sets in a 2D scatter plot.";
}
protected void appearanceDesign() {
m_visPanel = null;
removeAll();
m_visual = new BeanVisual("DataVisualizer",
BeanVisual.ICON_PATH+"DefaultDataVisualizer.gif",
BeanVisual.ICON_PATH
+"DefaultDataVisualizer_animated.gif");
setLayout(new BorderLayout());
add(m_visual, BorderLayout.CENTER);
}
protected void appearanceFinal() {
java.awt.GraphicsEnvironment ge =
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment();
removeAll();
if (!ge.isHeadless()) {
setLayout(new BorderLayout());
setUpFinal();
}
}
protected void setUpFinal() {
if (m_visPanel == null) {
m_visPanel = new VisualizePanel();
}
add(m_visPanel, BorderLayout.CENTER);
}
/**
* Accept a training set
*
* @param e a <code>TrainingSetEvent</code> value
*/
public void acceptTrainingSet(TrainingSetEvent e) {
Instances trainingSet = e.getTrainingSet();
DataSetEvent dse = new DataSetEvent(this, trainingSet);
acceptDataSet(dse);
}
/**
* Accept a test set
*
* @param e a <code>TestSetEvent</code> value
*/
public void acceptTestSet(TestSetEvent e) {
Instances testSet = e.getTestSet();
DataSetEvent dse = new DataSetEvent(this, testSet);
acceptDataSet(dse);
}
/**
* Accept a data set
*
* @param e a <code>DataSetEvent</code> value
*/
public synchronized void acceptDataSet(DataSetEvent e) {
// ignore structure only events
if (e.isStructureOnly()) {
return;
}
m_visualizeDataSet = new Instances(e.getDataSet());
if (m_visualizeDataSet.classIndex() < 0) {
m_visualizeDataSet.setClassIndex(m_visualizeDataSet.numAttributes()-1);
}
if (!m_design) {
try {
setInstances(m_visualizeDataSet);
} catch (Exception ex) {
ex.printStackTrace();
}
}
// pass on the event to any listeners
notifyDataSetListeners(e);
}
/**
* Set the visual appearance of this bean
*
* @param newVisual a <code>BeanVisual</code> value
*/
public void setVisual(BeanVisual newVisual) {
m_visual = newVisual;
}
/**
* Return the visual appearance of this bean
*/
public BeanVisual getVisual() {
return m_visual;
}
/**
* Use the default appearance for this bean
*/
public void useDefaultVisual() {
m_visual.loadIcons(BeanVisual.ICON_PATH+"DefaultDataVisualizer.gif",
BeanVisual.ICON_PATH+"DefaultDataVisualizer_animated.gif");
}
/**
* Describe <code>enumerateRequests</code> method here.
*
* @return an <code>Enumeration</code> value
*/
public Enumeration enumerateRequests() {
Vector newVector = new Vector(0);
if (m_visualizeDataSet != null) {
newVector.addElement("Show plot");
}
return newVector.elements();
}
/**
* Add a property change listener to this bean
*
* @param name the name of the property of interest
* @param pcl a <code>PropertyChangeListener</code> value
*/
public void addPropertyChangeListener(String name,
PropertyChangeListener pcl) {
m_bcSupport.addPropertyChangeListener(name, pcl);
}
/**
* Remove a property change listener from this bean
*
* @param name the name of the property of interest
* @param pcl a <code>PropertyChangeListener</code> value
*/
public void removePropertyChangeListener(String name,
PropertyChangeListener pcl) {
m_bcSupport.removePropertyChangeListener(name, pcl);
}
/**
* 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);
}
/**
* 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;
}
/**
* Set instances for this bean. This method is a convenience method
* for clients who use this component programatically
*
* @param inst an <code>Instances</code> value
* @exception Exception if an error occurs
*/
public void setInstances(Instances inst) throws Exception {
if (m_design) {
throw new Exception("This method is not to be used during design "
+"time. It is meant to be used if this "
+"bean is being used programatically as as "
+"stand alone component.");
}
m_visualizeDataSet = inst;
PlotData2D pd1 = new PlotData2D(m_visualizeDataSet);
String relationName = m_visualizeDataSet.relationName();
pd1.setPlotName(relationName);
try {
m_visPanel.setMasterPlot(pd1);
} catch (Exception ex) {
System.err.println("Problem setting up "
+"visualization (DataVisualizer)");
ex.printStackTrace();
}
}
/**
* Notify all data set listeners of a data set event
*
* @param ge a <code>DataSetEvent</code> value
*/
private void notifyDataSetListeners(DataSetEvent ge) {
Vector l;
synchronized (this) {
l = (Vector)m_dataSetListeners.clone();
}
if (l.size() > 0) {
for(int i = 0; i < l.size(); i++) {
((DataSourceListener)l.elementAt(i)).acceptDataSet(ge);
}
}
}
/**
* Describe <code>performRequest</code> method here.
*
* @param request a <code>String</code> value
* @exception IllegalArgumentException if an error occurs
*/
public void performRequest(String request) {
if (request.compareTo("Show plot") == 0) {
try {
// popup visualize panel
if (!m_framePoppedUp) {
m_framePoppedUp = true;
final VisualizePanel vis = new VisualizePanel();
PlotData2D pd1 = new PlotData2D(m_visualizeDataSet);
String relationName = m_visualizeDataSet.relationName();
// A bit of a nasty hack. Allows producers of instances-based
// events to specify that the points should be connected
if (relationName.startsWith("__")) {
boolean[] connect = new boolean[m_visualizeDataSet.numInstances()];
for (int i = 1; i < connect.length; i++) { connect[i] = true; }
pd1.setConnectPoints(connect);
relationName = relationName.substring(2);
}
pd1.setPlotName(relationName);
try {
vis.setMasterPlot(pd1);
} catch (Exception ex) {
System.err.println("Problem setting up "
+"visualization (DataVisualizer)");
ex.printStackTrace();
}
final JFrame jf = new JFrame("Visualize");
jf.setSize(800,600);
jf.getContentPane().setLayout(new BorderLayout());
jf.getContentPane().add(vis, BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
m_framePoppedUp = false;
}
});
jf.setVisible(true);
m_popupFrame = jf;
} else {
m_popupFrame.toFront();
}
} catch (Exception ex) {
ex.printStackTrace();
m_framePoppedUp = false;
}
} else {
throw new IllegalArgumentException(request
+ " not supported (DataVisualizer)");
}
}
/**
* Add a listener
*
* @param dsl a <code>DataSourceListener</code> value
*/
public synchronized void addDataSourceListener(DataSourceListener dsl) {
m_dataSetListeners.addElement(dsl);
}
/**
* Remove a listener
*
* @param dsl a <code>DataSourceListener</code> value
*/
public synchronized void removeDataSourceListener(DataSourceListener dsl) {
m_dataSetListeners.remove(dsl);
}
public static void main(String [] args) {
try {
if (args.length != 1) {
System.err.println("Usage: DataVisualizer <dataset>");
System.exit(1);
}
java.io.Reader r = new java.io.BufferedReader(
new java.io.FileReader(args[0]));
Instances inst = new Instances(r);
final javax.swing.JFrame jf = new javax.swing.JFrame();
jf.getContentPane().setLayout(new java.awt.BorderLayout());
final DataVisualizer as = new DataVisualizer();
as.setInstances(inst);
jf.getContentPane().add(as, java.awt.BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
System.exit(0);
}
});
jf.setSize(800,600);
jf.setVisible(true);
} catch (Exception ex) {
ex.printStackTrace();
System.err.println(ex.getMessage());
}
}
}