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ListSelectorDialog.java
Package: Weka-3-2.rar [view]
Upload User: rhdiban
Upload Date: 2013-08-09
Package Size: 15085k
Code Size: 4k
Category:
Windows Develop
Development Platform:
Java
- /*
- * 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.
- */
- /*
- * ListSelectorDialog.java
- * Copyright (C) 1999 Len Trigg
- *
- */
- package weka.gui;
- import java.awt.Component;
- import java.awt.BorderLayout;
- import java.awt.Frame;
- import java.awt.Container;
- import java.awt.event.ActionEvent;
- import java.awt.event.ActionListener;
- import javax.swing.JPanel;
- import javax.swing.JFrame;
- import javax.swing.DefaultListModel;
- import javax.swing.JScrollPane;
- import javax.swing.JButton;
- import javax.swing.Box;
- import javax.swing.BoxLayout;
- import javax.swing.JDialog;
- import javax.swing.JList;
- /**
- * A dialog to present the user with a list of items, that the user can
- * make a selection from, or cancel the selection.
- *
- * @author Len Trigg (trigg@cs.waikato.ac.nz)
- * @version $Revision: 1.4 $
- */
- public class ListSelectorDialog extends JDialog {
- /** Click to choose the currently selected property */
- protected JButton m_SelectBut = new JButton("Select");
- /** Click to cancel the property selection */
- protected JButton m_CancelBut = new JButton("Cancel");
- /** The list component */
- protected JList m_List;
- /** Whether the selection was made or cancelled */
- protected int m_Result;
- /** Signifies an OK property selection */
- public static final int APPROVE_OPTION = 0;
- /** Signifies a cancelled property selection */
- public static final int CANCEL_OPTION = 1;
- /**
- * Create the list selection dialog.
- *
- * @param parentFrame the parent frame of the dialog
- * @param userList the JList component the user will select from
- */
- public ListSelectorDialog(Frame parentFrame, JList userList) {
- super(parentFrame, "Select items", true);
- m_List = userList;
- m_CancelBut.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e) {
- m_Result = CANCEL_OPTION;
- setVisible(false);
- }
- });
- m_SelectBut.addActionListener(new ActionListener() {
- public void actionPerformed(ActionEvent e) {
- m_Result = APPROVE_OPTION;
- setVisible(false);
- }
- });
- Container c = getContentPane();
- c.setLayout(new BorderLayout());
- // setBorder(BorderFactory.createTitledBorder("Select a property"));
- Box b1 = new Box(BoxLayout.X_AXIS);
- b1.add(m_SelectBut);
- b1.add(Box.createHorizontalStrut(10));
- b1.add(m_CancelBut);
- c.add(b1, BorderLayout.SOUTH);
- c.add(new JScrollPane(m_List), BorderLayout.CENTER);
- pack();
- }
- /**
- * Pops up the modal dialog and waits for cancel or a selection.
- *
- * @return either APPROVE_OPTION, or CANCEL_OPTION
- */
- public int showDialog() {
- m_Result = CANCEL_OPTION;
- int [] origSelected = m_List.getSelectedIndices();
- setVisible(true);
- if (m_Result == CANCEL_OPTION) {
- m_List.setSelectedIndices(origSelected);
- }
- return m_Result;
- }
- /**
- * Tests out the list selector from the command line.
- *
- * @param args ignored
- */
- public static void main(String [] args) {
- try {
- DefaultListModel lm = new DefaultListModel();
- lm.addElement("one");
- lm.addElement("two");
- lm.addElement("three");
- lm.addElement("four");
- lm.addElement("five");
- JList jl = new JList(lm);
- final ListSelectorDialog jd = new ListSelectorDialog(null, jl);
- int result = jd.showDialog();
- if (result == ListSelectorDialog.APPROVE_OPTION) {
- System.err.println("Fields Selected");
- int [] selected = jl.getSelectedIndices();
- for (int i = 0; i < selected.length; i++) {
- System.err.println("" + selected[i]
- + " " + lm.elementAt(selected[i]));
- }
- } else {
- System.err.println("Cancelled");
- }
- System.exit(0);
- } catch (Exception ex) {
- ex.printStackTrace();
- System.err.println(ex.getMessage());
- }
- }
- }