/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.viewer;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import com.rapidminer.gui.tools.ExtendedJScrollPane;
import com.rapidminer.gui.tools.ExtendedJTable;
import com.rapidminer.gui.tools.SwingTools;
import com.rapidminer.operator.learner.associations.FrequentItemSets;
/**
* The viewer for frequent item sets.
*
* @author Ingo Mierswa
* @version $Id: FrequentItemSetVisualization.java,v 1.7 2008/05/09 19:22:59 ingomierswa Exp $
*/
public class FrequentItemSetVisualization extends JPanel {
private static final long serialVersionUID = -4353590225271845908L;
private FrequentItemSetsTableModel model;
private JLabel totalSizeLabel = new JLabel();
private JLabel minItemSetSizeLabel = new JLabel();
public FrequentItemSetVisualization(final FrequentItemSets frequentSets) {
setLayout(new BorderLayout());
// main panel
{
JPanel mainPanel = new JPanel();
GridBagLayout layout = new GridBagLayout();
mainPanel.setLayout(layout);
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.BOTH;
c.weightx = 1;
c.weighty = 1;
c.gridwidth = GridBagConstraints.REMAINDER;
if (frequentSets.size() == 0) {
JLabel emptyLabel = new JLabel("no itemsets found");
JPanel emptyPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
emptyPanel.add(emptyLabel);
layout.setConstraints(emptyPanel, c);
mainPanel.add(emptyPanel);
} else {
frequentSets.sortSets();
this.model = new FrequentItemSetsTableModel(frequentSets);
JTable table = new ExtendedJTable(this.model, true, true, false);
JScrollPane tablePane = new ExtendedJScrollPane(table);
layout.setConstraints(tablePane, c);
mainPanel.add(tablePane);
}
add(mainPanel, BorderLayout.CENTER);
}
// control panel
{
GridBagLayout layout = new GridBagLayout();
JPanel controlPanel = new JPanel(layout);
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.BOTH;
c.weightx = 0;
c.weighty = 0;
c.insets = new Insets(4,4,4,4);
c.gridwidth = GridBagConstraints.REMAINDER;
totalSizeLabel.setText("No. of Sets: " + frequentSets.size());
layout.setConstraints(totalSizeLabel, c);
controlPanel.add(totalSizeLabel);
minItemSetSizeLabel.setText("Total Max. Size: " + frequentSets.getMaximumSetSize());
layout.setConstraints(minItemSetSizeLabel, c);
controlPanel.add(minItemSetSizeLabel);
Component strut = Box.createVerticalStrut(10);
layout.setConstraints(strut, c);
controlPanel.add(strut);
JLabel label = new JLabel("Min. Size: ");
c.gridwidth = GridBagConstraints.RELATIVE;
layout.setConstraints(label, c);
controlPanel.add(label);
final JTextField minSizeField = new JTextField(4);
minSizeField.setText("1");
c.gridwidth = GridBagConstraints.REMAINDER;
layout.setConstraints(minSizeField, c);
controlPanel.add(minSizeField);
label = new JLabel("Max. Size: ");
c.gridwidth = GridBagConstraints.RELATIVE;
layout.setConstraints(label, c);
controlPanel.add(label);
final JTextField maxSizeField = new JTextField(4);
maxSizeField.setText(frequentSets.getMaximumSetSize() + "");
c.gridwidth = GridBagConstraints.REMAINDER;
layout.setConstraints(maxSizeField, c);
controlPanel.add(maxSizeField);
label = new JLabel("Contains Item: ");
c.gridwidth = GridBagConstraints.REMAINDER;
layout.setConstraints(label, c);
controlPanel.add(label);
final JTextField itemNameField = new JTextField(8);
c.gridwidth = GridBagConstraints.REMAINDER;
layout.setConstraints(itemNameField, c);
controlPanel.add(itemNameField);
// update button
final JButton updateButton = new JButton("Update View");
c.gridwidth = GridBagConstraints.REMAINDER;
layout.setConstraints(updateButton, c);
controlPanel.add(updateButton);
updateButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
int minNumber = 1;
String minText = minSizeField.getText();
if ((minText != null) && (minText.trim().length() >= 0)) {
try {
minNumber = Integer.parseInt(minText);
} catch (NumberFormatException ex) {
SwingTools.showVerySimpleErrorMessage("Only numerical values are allowed for the minimum number of items.");
return;
}
}
int maxNumber = frequentSets.getMaximumSetSize();
String maxText = maxSizeField.getText();
if ((maxText != null) && (maxText.trim().length() >= 0)) {
try {
maxNumber = Integer.parseInt(maxText);
} catch (NumberFormatException ex) {
SwingTools.showVerySimpleErrorMessage("Only numerical values are allowed for the maximum number of items.");
return;
}
}
String searchString = itemNameField.getText();
if (searchString != null) {
if (searchString.trim().length() == 0)
searchString = null;
}
if (model != null) {
model.updateFilter(minNumber, maxNumber, searchString);
totalSizeLabel.setText("No. of Sets: " + model.getRowCount());
minItemSetSizeLabel.setText("Total Max. Size: " + (model.getColumnCount() - 2));
}
}
});
// fill panel
JPanel fillPanel = new JPanel();
c.gridwidth = GridBagConstraints.REMAINDER;
c.weighty = 1;
layout.setConstraints(fillPanel, c);
controlPanel.add(fillPanel);
add(controlPanel, BorderLayout.WEST);
}
}
}