001    /* ========================================================================
002     * JCommon : a free general purpose class library for the Java(tm) platform
003     * ========================================================================
004     *
005     * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
006     * 
007     * Project Info:  http://www.jfree.org/jcommon/index.html
008     *
009     * This library is free software; you can redistribute it and/or modify it 
010     * under the terms of the GNU Lesser General Public License as published by 
011     * the Free Software Foundation; either version 2.1 of the License, or 
012     * (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but 
015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
017     * License for more details.
018     *
019     * You should have received a copy of the GNU Lesser General Public
020     * License along with this library; if not, write to the Free Software
021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
022     * USA.  
023     *
024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
025     * in the United States and other countries.]
026     * 
027     * --------------------------
028     * SystemPropertiesFrame.java
029     * --------------------------
030     * (C) Copyright 2000-2004, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * $Id: SystemPropertiesFrame.java,v 1.5 2005/11/16 15:58:41 taqua Exp $
036     *
037     * Changes (from 26-Oct-2001)
038     * --------------------------
039     * 26-Oct-2001 : Changed package to com.jrefinery.ui (DG);
040     * 26-Nov-2001 : Made a separate class SystemPropertiesPanel.java (DG);
041     * 28-Feb-2002 : Moved to package com.jrefinery.ui.about (DG);
042     * 15-Mar-2002 : Modified to use a ResourceBundle for elements that require localisation (DG);
043     * 08-Oct-2002 : Fixed errors reported by Checkstyle (DG);
044     *
045     */
046    
047    package org.jfree.ui.about;
048    
049    import java.awt.BorderLayout;
050    import java.awt.event.ActionEvent;
051    import java.awt.event.ActionListener;
052    import java.util.ResourceBundle;
053    
054    import javax.swing.BorderFactory;
055    import javax.swing.JButton;
056    import javax.swing.JFrame;
057    import javax.swing.JMenu;
058    import javax.swing.JMenuBar;
059    import javax.swing.JMenuItem;
060    import javax.swing.JPanel;
061    import javax.swing.WindowConstants;
062    
063    /**
064     * A frame containing a table that displays the system properties for the current Java Virtual
065     * Machine (JVM).  It is useful to incorporate this frame into an application for diagnostic
066     * purposes, since it provides a convenient means for the user to return configuration and
067     * version information when reporting problems.
068     *
069     * @author David Gilbert
070     */
071    public class SystemPropertiesFrame extends JFrame implements ActionListener {
072    
073        /** Copy action command. */
074        private static final String COPY_COMMAND = "COPY";
075    
076        /** Close action command. */
077        private static final String CLOSE_COMMAND = "CLOSE";
078    
079        /** A system properties panel. */
080        private SystemPropertiesPanel panel;
081    
082        /**
083         * Constructs a standard frame that displays system properties.
084         * <P>
085         * If a menu is requested, it provides a menu item that allows the user to copy the contents of
086         * the table to the clipboard in tab-delimited format.
087         *
088         * @param menu  flag indicating whether or not the frame should display a menu to allow
089         *              the user to copy properties to the clipboard.
090         */
091        public SystemPropertiesFrame(final boolean menu) {
092    
093            final String baseName = "org.jfree.ui.about.resources.AboutResources";
094            final ResourceBundle resources = ResourceBundle.getBundle(baseName);
095    
096            final String title = resources.getString("system-frame.title");
097            setTitle(title);
098    
099            setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
100    
101            if (menu) {
102                setJMenuBar(createMenuBar(resources));
103            }
104    
105            final JPanel content = new JPanel(new BorderLayout());
106            this.panel = new SystemPropertiesPanel();
107            this.panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
108    
109            content.add(this.panel, BorderLayout.CENTER);
110    
111            final JPanel buttonPanel = new JPanel(new BorderLayout());
112            buttonPanel.setBorder(BorderFactory.createEmptyBorder(5, 0, 0, 0));
113    
114            final String label = resources.getString("system-frame.button.close");
115            final Character mnemonic = (Character) resources.getObject("system-frame.button.close.mnemonic");
116            final JButton closeButton = new JButton(label);
117            closeButton.setMnemonic(mnemonic.charValue());
118    
119            closeButton.setActionCommand(CLOSE_COMMAND);
120            closeButton.addActionListener(this);
121    
122            buttonPanel.add(closeButton, BorderLayout.EAST);
123            content.add(buttonPanel, BorderLayout.SOUTH);
124    
125            setContentPane(content);
126    
127        }
128    
129        /**
130         * Handles action events generated by the user.
131         *
132         * @param e  the event.
133         */
134        public void actionPerformed(final ActionEvent e) {
135    
136            final String command = e.getActionCommand();
137            if (command.equals(CLOSE_COMMAND)) {
138                dispose();
139            }
140            else if (command.equals(COPY_COMMAND)) {
141                this.panel.copySystemPropertiesToClipboard();
142            }
143    
144        }
145    
146    
147        /**
148         * Creates and returns a menu-bar for the frame.
149         *
150         * @param resources  localised resources.
151         *
152         * @return a menu bar.
153         */
154        private JMenuBar createMenuBar(final ResourceBundle resources) {
155    
156            final JMenuBar menuBar = new JMenuBar();
157    
158            String label = resources.getString("system-frame.menu.file");
159            Character mnemonic = (Character) resources.getObject("system-frame.menu.file.mnemonic");
160            final JMenu fileMenu = new JMenu(label, true);
161            fileMenu.setMnemonic(mnemonic.charValue());
162    
163            label = resources.getString("system-frame.menu.file.close");
164            mnemonic = (Character) resources.getObject("system-frame.menu.file.close.mnemonic");
165            final JMenuItem closeItem = new JMenuItem(label, mnemonic.charValue());
166            closeItem.setActionCommand(CLOSE_COMMAND);
167    
168            closeItem.addActionListener(this);
169            fileMenu.add(closeItem);
170    
171            label = resources.getString("system-frame.menu.edit");
172            mnemonic = (Character) resources.getObject("system-frame.menu.edit.mnemonic");
173            final JMenu editMenu = new JMenu(label);
174            editMenu.setMnemonic(mnemonic.charValue());
175    
176            label = resources.getString("system-frame.menu.edit.copy");
177            mnemonic = (Character) resources.getObject("system-frame.menu.edit.copy.mnemonic");
178            final JMenuItem copyItem = new JMenuItem(label, mnemonic.charValue());
179            copyItem.setActionCommand(COPY_COMMAND);
180            copyItem.addActionListener(this);
181            editMenu.add(copyItem);
182    
183            menuBar.add(fileMenu);
184            menuBar.add(editMenu);
185            return menuBar;
186    
187        }
188    
189    }