    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 1.4 2005/10/18 13:19:13 mungady 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    }