operatorinfoscreen.java

一个很好的LIBSVM的JAVA源码。对于要研究和改进SVM算法的学者。可以参考。来自数据挖掘工具YALE工具包。

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2001-2004
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.operator.Operator;
import edu.udo.cs.yale.operator.OperatorChain;

import edu.udo.cs.yale.tools.Tools;

import javax.swing.*;
import java.awt.event.*;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Frame;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Image;
import java.awt.Component;
import java.util.List;
import java.util.Iterator;

public class OperatorInfoScreen extends JDialog {

    private JTextArea userDescription = null;
    private boolean ok = false;

    public OperatorInfoScreen(Frame owner, Operator operator) {
	super(owner, "Operator Info", true);

	JPanel rootPanel = new JPanel(new BorderLayout());
	rootPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
	GridBagLayout layout = new GridBagLayout();
	JPanel mainPanel = new JPanel(layout);
	GridBagConstraints c = new GridBagConstraints();
	c.fill = GridBagConstraints.BOTH;
	c.ipadx = 10;
	c.weightx = 1.0d;

	JLabel label = null;

	Image img = operator.getOperatorDescription().getIcon();
	if (img != null) {
	    label = new JLabel(new ImageIcon(img));
	    c.gridwidth = GridBagConstraints.REMAINDER;
	    layout.setConstraints(label, c);
	    mainPanel.add(label);
	}

	Component sep = Box.createVerticalStrut(10);
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(sep, c);
	mainPanel.add(sep);

	label = new JLabel("Name");
	label.setToolTipText("The name of the operator");
	c.gridwidth = GridBagConstraints.RELATIVE;
	layout.setConstraints(label, c);
	mainPanel.add(label);

	label = new JLabel(operator.getName());
	label.setToolTipText("The name of the operator");
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(label, c);
	mainPanel.add(label);
	 
	label = new JLabel("Group");
	label.setToolTipText("The group of the operator");
	c.gridwidth = GridBagConstraints.RELATIVE;
	layout.setConstraints(label, c);
	mainPanel.add(label);

	label = new JLabel(operator.getOperatorDescription().getGroup());
	label.setToolTipText("The group of the operator");
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(label, c);
	mainPanel.add(label);

	label = new JLabel("Class");
	label.setToolTipText("The type of the operator");
	c.gridwidth = GridBagConstraints.RELATIVE;
	layout.setConstraints(label, c);
	mainPanel.add(label);
	
	label = new JLabel(operator.getOperatorDescription().getName());
	label.setToolTipText("The type of the operator");
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(label, c);
	mainPanel.add(label);

	sep = Box.createVerticalStrut(10);
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(sep, c);
	mainPanel.add(sep);

	label = new JLabel("Input");
	label.setToolTipText("Expected input");
	c.gridwidth = GridBagConstraints.RELATIVE;
	layout.setConstraints(label, c);
	mainPanel.add(label);
	
	Class[] input = operator.getInputClasses();
	String inputString = "";
	if (input == null) inputString = "none";
	else {
	    for (int i = 0; i < input.length; i++) {
		if (i != 0) inputString +=", ";
		inputString += Tools.classNameWOPackage(input[i]);
	    }
	}
	if (inputString.length() == 0) inputString = "none";
	label = new JLabel(inputString);
	label.setToolTipText("Expected input");
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(label, c);
	mainPanel.add(label);

	label = new JLabel("Output");
	label.setToolTipText("Delivered output");
	c.gridwidth = GridBagConstraints.RELATIVE;
	layout.setConstraints(label, c);
	mainPanel.add(label);
	
	Class[] output = operator.getOutputClasses();
	String outputString = "";
	if (output == null) outputString = "none";
	else {
	    for (int i = 0; i < output.length; i++) {
		if (i != 0) outputString +=", ";
		outputString += Tools.classNameWOPackage(output[i]);
	    }
	}
	if (outputString.length() == 0) outputString = "none";
	label = new JLabel(outputString);
	label.setToolTipText("Delivered output");
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(label, c);
	mainPanel.add(label);


	if (operator instanceof OperatorChain) {

	    OperatorChain chain = (OperatorChain)operator;

	    sep = Box.createVerticalStrut(10);
	    c.gridwidth = GridBagConstraints.REMAINDER;
	    layout.setConstraints(sep, c);
	    mainPanel.add(sep);

	    if (chain.getMinNumberOfInnerOperators() == chain.getMaxNumberOfInnerOperators()) { 
		label = new JLabel("Inner Operators");
		label.setToolTipText("Number of inner operators");
		c.gridwidth = GridBagConstraints.RELATIVE;
		layout.setConstraints(label, c);
		mainPanel.add(label);
		
		label = new JLabel(((OperatorChain)operator).getMinNumberOfInnerOperators() + "");
		label.setToolTipText("Number of inner operators");
		c.gridwidth = GridBagConstraints.REMAINDER;
		layout.setConstraints(label, c);
		mainPanel.add(label);
	    } else {
		label = new JLabel("Min Inner");
		label.setToolTipText("Minimum number of inner operators");
		c.gridwidth = GridBagConstraints.RELATIVE;
		layout.setConstraints(label, c);
		mainPanel.add(label);
		
		label = new JLabel(((OperatorChain)operator).getMinNumberOfInnerOperators() + "");
		label.setToolTipText("Minimum number of inner operators");
		c.gridwidth = GridBagConstraints.REMAINDER;
		layout.setConstraints(label, c);
		mainPanel.add(label);
		
		label = new JLabel("Max Inner");
		label.setToolTipText("Maximum number of inner operators");
		c.gridwidth = GridBagConstraints.RELATIVE;
		layout.setConstraints(label, c);
		mainPanel.add(label);
		
		int maxInner = ((OperatorChain)operator).getMaxNumberOfInnerOperators();
		label = new JLabel(maxInner == Integer.MAX_VALUE ? "Max" : (maxInner + ""));
		label.setToolTipText("Maximum number of inner operators");
		c.gridwidth = GridBagConstraints.REMAINDER;
		layout.setConstraints(label, c);
		mainPanel.add(label);  
	    }
	}

	JTextArea description = new JTextArea("",4,20);
	description.setToolTipText("A short description of this operator");
	description.setEditable(false);
	description.setLineWrap(true);
	description.setWrapStyleWord(true);
	description.setBackground(this.getBackground());
	description.setText(operator.getOperatorDescription().getDescription());
	JScrollPane textScrollPane = new JScrollPane(description);
	textScrollPane.setBorder(BorderFactory.createEmptyBorder(10,0,10,0));
	c.gridwidth = GridBagConstraints.REMAINDER;
	layout.setConstraints(textScrollPane, c);
	mainPanel.add(textScrollPane);


	List errorList = operator.getErrorList();
	if (errorList.size() > 0) {
	    JEditorPane errors = new JEditorPane("text/html", "");
	    errors.setToolTipText("Errors of this operator");
	    errors.setEditable(false);
	    errors.setBackground(this.getBackground());
	    errors.setForeground(java.awt.Color.red);

	    String errorText = "<h3>Errors:</h3><ul>";
	    Iterator i = errorList.iterator();
	    while (i.hasNext()) {
		errorText += "<li>" + (String)i.next() + "</li>";
	    }
	    errorText += "</ul>";

	    errors.setText(SwingTools.text2DisplayHtml(errorText));

	    JScrollPane errorsScrollPane = new JScrollPane(errors);
	    errorsScrollPane.setBorder(BorderFactory.createEmptyBorder(10,0,10,0));
	    c.gridwidth = GridBagConstraints.REMAINDER;
	    layout.setConstraints(errorsScrollPane, c);
	    mainPanel.add(errorsScrollPane);
	}


	userDescription = new JTextArea("",4,20);
	userDescription.setToolTipText("User defined description of this operator");
	userDescription.setEditable(true);
	userDescription.setLineWrap(true);
	userDescription.setWrapStyleWord(true);
	userDescription.setText(SwingTools.text2SimpleHtml(operator.getUserDescription()));
	JScrollPane userDescriptionScrollPane = new JScrollPane(userDescription);
	userDescriptionScrollPane.setBorder(BorderFactory.createTitledBorder("User description"));
	c.gridwidth = GridBagConstraints.REMAINDER;
	c.weighty = 1.0d;
	layout.setConstraints(userDescriptionScrollPane, c);
	mainPanel.add(userDescriptionScrollPane);

	rootPanel.add(mainPanel, BorderLayout.CENTER);

	JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
	JButton okButton = new JButton("Ok");
	okButton.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) { ok(); }
	    });
	buttonPanel.add(okButton);
	JButton cancelButton = new JButton("Cancel");
	cancelButton.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) { cancel(); }
	    });
	buttonPanel.add(cancelButton);

	rootPanel.add(buttonPanel, BorderLayout.SOUTH);

	getContentPane().add(rootPanel);

	pack();
	setLocationRelativeTo(owner);
    }

    public boolean isOk() { return ok; }

    public String getUserDescription() { return SwingTools.html2YaleText(userDescription.getText()); }

    private void ok() {
	ok = true;
	dispose(); 
    }

    private void cancel() {
	ok = false;
	dispose(); 
    }
}