    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    }