    001    /* ========================================================================
    002     * JCommon : a free general purpose class library for the Java(tm) platform
    003     * ========================================================================
    004     *
    005     * (C) Copyright 2000-2008, 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     * SystemPropertiesPanel.java
    029     * --------------------------
    030     * (C) Copyright 2001-2008, by Object Refinery Limited.
    031     *
    032     * Original Author:  David Gilbert (for Object Refinery Limited);
    033     * Contributor(s):   -;
    034     *
    035     * $Id: SystemPropertiesPanel.java,v 1.7 2008/12/18 09:57:32 mungady Exp $
    036     *
    037     * Changes
    038     * -------
    039     * 26-Nov-2001 : Version 1 (DG);
    040     * 28-Feb-2002 : Changed package to com.jrefinery.ui.about (DG);
    041     * 04-Mar-2002 : Added popup menu code by Carl ?? (DG);
    042     * 15-Mar-2002 : Modified to use ResourceBundle for elements that require
    043     *               localisation (DG);
    044     * 26-Jun-2002 : Removed unnecessary import (DG);
    045     * 08-Oct-2002 : Fixed errors reported by Checkstyle (DG);
    046     * 18-Dec-2008 : Use ResourceBundleWrapper - see JFreeChart patch 1607918 by
    047     *               Jess Thrysoee (DG);
    048     *
    049     */
    050
    051    package org.jfree.ui.about;
    052
    053    import java.awt.BorderLayout;
    054    import java.awt.Toolkit;
    055    import java.awt.datatransfer.Clipboard;
    056    import java.awt.datatransfer.StringSelection;
    057    import java.awt.event.ActionEvent;
    058    import java.awt.event.ActionListener;
    059    import java.awt.event.MouseAdapter;
    060    import java.awt.event.MouseEvent;
    061    import java.util.ResourceBundle;
    062
    063    import javax.swing.JMenuItem;
    064    import javax.swing.JPanel;
    065    import javax.swing.JPopupMenu;
    066    import javax.swing.JScrollPane;
    067    import javax.swing.JTable;
    068    import javax.swing.KeyStroke;
    069    import javax.swing.ListSelectionModel;
    070
    071    import org.jfree.util.ResourceBundleWrapper;
    072
    073    /**
    074     * A panel containing a table of system properties.
    075     *
    076     * @author David Gilbert
    077     */
    078    public class SystemPropertiesPanel extends JPanel {
    079
    080        /** The table that displays the system properties. */
    081        private JTable table;
    082
    083        /** Allows for a popup menu for copying. */
    084        private JPopupMenu copyPopupMenu;
    085
    086        /** A copy menu item. */
    087        private JMenuItem copyMenuItem;
    088
    089        /** A popup listener. */
    090        private PopupListener copyPopupListener;
    091
    092        /**
    093         * Constructs a new panel.
    094         */
    095        public SystemPropertiesPanel() {
    096
    097            final String baseName = "org.jfree.ui.about.resources.AboutResources";
    098            final ResourceBundle resources = ResourceBundleWrapper.getBundle(
    099                    baseName);
    100
    101            setLayout(new BorderLayout());
    102            this.table = SystemProperties.createSystemPropertiesTable();
    103            add(new JScrollPane(this.table));
    104
    105            // Add a popup menu to copy to the clipboard...
    106            this.copyPopupMenu = new JPopupMenu();
    107
    108            final String label = resources.getString(
    109                    "system-properties-panel.popup-menu.copy");
    110            final KeyStroke accelerator = (KeyStroke) resources.getObject(
    111                        "system-properties-panel.popup-menu.copy.accelerator");
    112            this.copyMenuItem = new JMenuItem(label);
    113            this.copyMenuItem.setAccelerator(accelerator);
    114            this.copyMenuItem.getAccessibleContext().setAccessibleDescription(
    115                    label);
    116            this.copyMenuItem.addActionListener(new ActionListener() {
    117                public void actionPerformed(final ActionEvent e) {
    118                    copySystemPropertiesToClipboard();
    119                }
    120            });
    121            this.copyPopupMenu.add(this.copyMenuItem);
    122
    123            // add popup Listener to the table
    124            this.copyPopupListener = new PopupListener();
    125            this.table.addMouseListener(this.copyPopupListener);
    126
    127        }
    128
    129        /**
    130         * Copies the selected cells in the table to the clipboard, in
    131         * tab-delimited format.
    132         */
    133        public void copySystemPropertiesToClipboard() {
    134
    135            final StringBuffer buffer = new StringBuffer();
    136            final ListSelectionModel selection = this.table.getSelectionModel();
    137            final int firstRow = selection.getMinSelectionIndex();
    138            final int lastRow = selection.getMaxSelectionIndex();
    139            if ((firstRow != -1) && (lastRow != -1)) {
    140                for (int r = firstRow; r <= lastRow; r++) {
    141                    for (int c = 0; c < this.table.getColumnCount(); c++) {
    142                        buffer.append(this.table.getValueAt(r, c));
    143                        if (c != 2) {
    144                            buffer.append("\t");
    145                        }
    146                    }
    147                    buffer.append("\n");
    148                }
    149            }
    150            final StringSelection ss = new StringSelection(buffer.toString());
    151            final Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
    152            cb.setContents(ss, ss);
    153
    154        }
    155
    156
    157        /**
    158         * Returns the copy popup menu.
    159         *
    160         * @return Returns the copyPopupMenu.
    161         */
    162        protected final JPopupMenu getCopyPopupMenu()
    163        {
    164          return this.copyPopupMenu;
    165        }
    166
    167        /**
    168         * Returns the table containing the system properties.
    169         * @return Returns the table.
    170         */
    171        protected final JTable getTable()
    172        {
    173          return this.table;
    174        }
    175
    176        /**
    177         * A popup listener.
    178         */
    179        private class PopupListener extends MouseAdapter {
    180
    181            /**
    182             * Default constructor.
    183             */
    184            public PopupListener() {
    185            }
    186
    187            /**
    188             * Mouse pressed event.
    189             *
    190             * @param e  the event.
    191             */
    192            public void mousePressed(final MouseEvent e) {
    193                maybeShowPopup(e);
    194            }
    195
    196            /**
    197             * Mouse released event.
    198             *
    199             * @param e  the event.
    200             */
    201            public void mouseReleased(final MouseEvent e) {
    202                maybeShowPopup(e);
    203            }
    204
    205            /**
    206             * Event handler.
    207             *
    208             * @param e  the event.
    209             */
    210            private void maybeShowPopup(final MouseEvent e) {
    211                if (e.isPopupTrigger()) {
    212                    getCopyPopupMenu().show(
    213                        getTable(), e.getX(), e.getY()
    214                    );
    215                }
    216            }
    217        }
    218
    219    }
    220