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 1.6 2007/11/02 17:50:36 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    import javax.swing.BorderFactory;
054    import javax.swing.JButton;
055    import javax.swing.JFrame;
056    import javax.swing.JMenu;
057    import javax.swing.JMenuBar;
058    import javax.swing.JMenuItem;
059    import javax.swing.JPanel;
060    import javax.swing.WindowConstants;
061    
062    /**
063     * A frame containing a table that displays the system properties for the current Java Virtual
064     * Machine (JVM).  It is useful to incorporate this frame into an application for diagnostic
065     * purposes, since it provides a convenient means for the user to return configuration and
066     * version information when reporting problems.
067     *
068     * @author David Gilbert
069     */
070    public class SystemPropertiesFrame extends JFrame implements ActionListener {
071    
072        /** Copy action command. */
073        private static final String COPY_COMMAND = "COPY";
074    
075        /** Close action command. */
076        private static final String CLOSE_COMMAND = "CLOSE";
077    
078        /** A system properties panel. */
079        private SystemPropertiesPanel panel;
080    
081        /**
082         * Constructs a standard frame that displays system properties.
083         * <P>
084         * If a menu is requested, it provides a menu item that allows the user to copy the contents of
085         * the table to the clipboard in tab-delimited format.
086         *
087         * @param menu  flag indicating whether or not the frame should display a menu to allow
088         *              the user to copy properties to the clipboard.
089         */
090        public SystemPropertiesFrame(final boolean menu) {
091    
092            final String baseName = "org.jfree.ui.about.resources.AboutResources";
093            final ResourceBundle resources = ResourceBundle.getBundle(baseName);
094    
095            final String title = resources.getString("system-frame.title");
096            setTitle(title);
097    
098            setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
099    
100            if (menu) {
101                setJMenuBar(createMenuBar(resources));
102            }
103    
104            final JPanel content = new JPanel(new BorderLayout());
105            this.panel = new SystemPropertiesPanel();
106            this.panel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
107    
108            content.add(this.panel, BorderLayout.CENTER);
109    
110            final JPanel buttonPanel = new JPanel(new BorderLayout());
111            buttonPanel.setBorder(BorderFactory.createEmptyBorder(5, 0, 0, 0));
112    
113            final String label = resources.getString("system-frame.button.close");
114            final Character mnemonic = (Character) resources.getObject("system-frame.button.close.mnemonic");
115            final JButton closeButton = new JButton(label);
116            closeButton.setMnemonic(mnemonic.charValue());
117    
118            closeButton.setActionCommand(CLOSE_COMMAND);
119            closeButton.addActionListener(this);
120    
121            buttonPanel.add(closeButton, BorderLayout.EAST);
122            content.add(buttonPanel, BorderLayout.SOUTH);
123    
124            setContentPane(content);
125    
126        }
127    
128        /**
129         * Handles action events generated by the user.
130         *
131         * @param e  the event.
132         */
133        public void actionPerformed(final ActionEvent e) {
134    
135            final String command = e.getActionCommand();
136            if (command.equals(CLOSE_COMMAND)) {
137                dispose();
138            }
139            else if (command.equals(COPY_COMMAND)) {
140                this.panel.copySystemPropertiesToClipboard();
141            }
142    
143        }
144    
145    
146        /**
147         * Creates and returns a menu-bar for the frame.
148         *
149         * @param resources  localised resources.
150         *
151         * @return a menu bar.
152         */
153        private JMenuBar createMenuBar(final ResourceBundle resources) {
154    
155            final JMenuBar menuBar = new JMenuBar();
156    
157            String label = resources.getString("system-frame.menu.file");
158            Character mnemonic = (Character) resources.getObject("system-frame.menu.file.mnemonic");
159            final JMenu fileMenu = new JMenu(label, true);
160            fileMenu.setMnemonic(mnemonic.charValue());
161    
162            label = resources.getString("system-frame.menu.file.close");
163            mnemonic = (Character) resources.getObject("system-frame.menu.file.close.mnemonic");
164            final JMenuItem closeItem = new JMenuItem(label, mnemonic.charValue());
165            closeItem.setActionCommand(CLOSE_COMMAND);
166    
167            closeItem.addActionListener(this);
168            fileMenu.add(closeItem);
169    
170            label = resources.getString("system-frame.menu.edit");
171            mnemonic = (Character) resources.getObject("system-frame.menu.edit.mnemonic");
172            final JMenu editMenu = new JMenu(label);
173            editMenu.setMnemonic(mnemonic.charValue());
174    
175            label = resources.getString("system-frame.menu.edit.copy");
176            mnemonic = (Character) resources.getObject("system-frame.menu.edit.copy.mnemonic");
177            final JMenuItem copyItem = new JMenuItem(label, mnemonic.charValue());
178            copyItem.setActionCommand(COPY_COMMAND);
179            copyItem.addActionListener(this);
180            editMenu.add(copyItem);
181    
182            menuBar.add(fileMenu);
183            menuBar.add(editMenu);
184            return menuBar;
185    
186        }
187    
188    }