001 /*
002 * Copyright (c) 2005 Einar Pehrson <einar@pehrson.nu>.
003 *
004 * This file is part of
005 * CleanSheets - a spreadsheet application for the Java platform.
006 *
007 * CleanSheets is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License as published by
009 * the Free Software Foundation; either version 2 of the License, or
010 * (at your option) any later version.
011 *
012 * CleanSheets is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
015 * GNU General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with CleanSheets; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020 */
021 package csheets.ui.ctrl;
022
023 import java.awt.Color;
024 import java.awt.Font;
025 import java.awt.Frame;
026 import java.awt.event.ActionEvent;
027 import java.awt.event.KeyEvent;
028 import java.io.BufferedReader;
029 import java.io.IOException;
030 import java.io.InputStream;
031 import java.io.InputStreamReader;
032
033 import javax.swing.Icon;
034 import javax.swing.ImageIcon;
035 import javax.swing.JOptionPane;
036 import javax.swing.JScrollPane;
037 import javax.swing.JTextArea;
038
039 import csheets.CleanSheets;
040
041 /**
042 * An action for displaying the license agreement.
043 * @author Einar Pehrson
044 */
045 @SuppressWarnings("serial")
046 public class LicenseAction extends BaseAction {
047
048 /** The scroll pane in which the text is shown */
049 private JScrollPane licensePane;
050
051 /**
052 * Creates a new help action.
053 */
054 public LicenseAction() {
055 InputStream stream = CleanSheets.class.getResourceAsStream(
056 "res/doc/license.txt");
057 if (stream != null) {
058 // Loads text from file
059 String text;
060 try {
061 BufferedReader br = new BufferedReader(new InputStreamReader(stream));
062 int availableBytes = stream.available();
063 char[] chars = new char[availableBytes];
064 br.read(chars, 0, availableBytes);
065 text = new String(chars);
066 } catch (Exception ex) {
067 text = "An error occurred when loading the text.";
068 } finally {
069 try {
070 stream.close();
071 } catch (IOException e) {}
072 }
073
074 // Creates and configures text area
075 JTextArea textArea = new JTextArea(text, 25, 80);
076 textArea.setFont(new Font("Courier", Font.PLAIN, 12));
077 textArea.setLineWrap(true);
078 textArea.setWrapStyleWord(true);
079 textArea.setTabSize(4);
080 textArea.setDisabledTextColor(Color.black);
081 textArea.setEnabled(false);
082 licensePane = new JScrollPane(textArea);
083 } else
084 setEnabled(false);
085 }
086
087 protected String getName() {
088 return "License Agreement...";
089 }
090
091 protected void defineProperties() {
092 putValue(MNEMONIC_KEY, KeyEvent.VK_L);
093 putValue(SMALL_ICON, new ImageIcon(CleanSheets.class.getResource("res/img/license.gif")));
094 }
095
096 public void actionPerformed(ActionEvent e) {
097 JOptionPane.showMessageDialog(
098 (Frame)null,
099 licensePane,
100 "License Agreement",
101 JOptionPane.PLAIN_MESSAGE,
102 (Icon)null);
103 }
104 }