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: * SystemPropertiesPanel.java
029: * --------------------------
030: * (C) Copyright 2001-2004, by Object Refinery Limited.
031: *
032: * Original Author: David Gilbert (for Object Refinery Limited);
033: * Contributor(s): -;
034: *
035: * $Id: SystemPropertiesPanel.java,v 1.4 2005/10/18 13:19:13 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 localisation (DG);
043: * 26-Jun-2002 : Removed unnecessary import (DG);
044: * 08-Oct-2002 : Fixed errors reported by Checkstyle (DG);
045: *
046: */
047:
048: package org.jfree.ui.about;
049:
050: import java.awt.BorderLayout;
051: import java.awt.Toolkit;
052: import java.awt.datatransfer.Clipboard;
053: import java.awt.datatransfer.StringSelection;
054: import java.awt.event.ActionEvent;
055: import java.awt.event.ActionListener;
056: import java.awt.event.MouseAdapter;
057: import java.awt.event.MouseEvent;
058: import java.util.ResourceBundle;
059:
060: import javax.swing.JMenuItem;
061: import javax.swing.JPanel;
062: import javax.swing.JPopupMenu;
063: import javax.swing.JScrollPane;
064: import javax.swing.JTable;
065: import javax.swing.KeyStroke;
066: import javax.swing.ListSelectionModel;
067:
068: /**
069: * A panel containing a table of system properties.
070: *
071: * @author David Gilbert
072: */
073: public class SystemPropertiesPanel extends JPanel {
074:
075: /** The table that displays the system properties. */
076: private JTable table;
077:
078: /** Allows for a popup menu for copying. */
079: private JPopupMenu copyPopupMenu;
080:
081: /** A copy menu item. */
082: private JMenuItem copyMenuItem;
083:
084: /** A popup listener. */
085: private PopupListener copyPopupListener;
086:
087: /**
088: * Constructs a new panel.
089: */
090: public SystemPropertiesPanel() {
091:
092: final String baseName = "org.jfree.ui.about.resources.AboutResources";
093: final ResourceBundle resources = ResourceBundle
094: .getBundle(baseName);
095:
096: setLayout(new BorderLayout());
097: this .table = SystemProperties.createSystemPropertiesTable();
098: add(new JScrollPane(this .table));
099:
100: // Add a popup menu to copy to the clipboard...
101: this .copyPopupMenu = new JPopupMenu();
102:
103: final String label = resources
104: .getString("system-properties-panel.popup-menu.copy");
105: final KeyStroke accelerator = (KeyStroke) resources
106: .getObject("system-properties-panel.popup-menu.copy.accelerator");
107: this .copyMenuItem = new JMenuItem(label);
108: this .copyMenuItem.setAccelerator(accelerator);
109: this .copyMenuItem.getAccessibleContext()
110: .setAccessibleDescription(label);
111: this .copyMenuItem.addActionListener(new ActionListener() {
112: public void actionPerformed(final ActionEvent e) {
113: copySystemPropertiesToClipboard();
114: }
115: });
116: this .copyPopupMenu.add(this .copyMenuItem);
117:
118: // add popup Listener to the table
119: this .copyPopupListener = new PopupListener();
120: this .table.addMouseListener(this .copyPopupListener);
121:
122: }
123:
124: /**
125: * Copies the selected cells in the table to the clipboard, in tab-delimited format.
126: */
127: public void copySystemPropertiesToClipboard() {
128:
129: final StringBuffer buffer = new StringBuffer();
130: final ListSelectionModel selection = this .table
131: .getSelectionModel();
132: final int firstRow = selection.getMinSelectionIndex();
133: final int lastRow = selection.getMaxSelectionIndex();
134: if ((firstRow != -1) && (lastRow != -1)) {
135: for (int r = firstRow; r <= lastRow; r++) {
136: for (int c = 0; c < this .table.getColumnCount(); c++) {
137: buffer.append(this .table.getValueAt(r, c));
138: if (c != 2) {
139: buffer.append("\t");
140: }
141: }
142: buffer.append("\n");
143: }
144: }
145: final StringSelection ss = new StringSelection(buffer
146: .toString());
147: final Clipboard cb = Toolkit.getDefaultToolkit()
148: .getSystemClipboard();
149: cb.setContents(ss, ss);
150:
151: }
152:
153: /**
154: * Returns the copy popup menu.
155: *
156: * @return Returns the copyPopupMenu.
157: */
158: protected final JPopupMenu getCopyPopupMenu() {
159: return copyPopupMenu;
160: }
161:
162: /**
163: * Returns the table containing the system properties.
164: * @return Returns the table.
165: */
166: protected final JTable getTable() {
167: return table;
168: }
169:
170: /**
171: * A popup listener.
172: */
173: private class PopupListener extends MouseAdapter {
174:
175: /**
176: * Default constructor.
177: */
178: public PopupListener() {
179: }
180:
181: /**
182: * Mouse pressed event.
183: *
184: * @param e the event.
185: */
186: public void mousePressed(final MouseEvent e) {
187: maybeShowPopup(e);
188: }
189:
190: /**
191: * Mouse released event.
192: *
193: * @param e the event.
194: */
195: public void mouseReleased(final MouseEvent e) {
196: maybeShowPopup(e);
197: }
198:
199: /**
200: * Event handler.
201: *
202: * @param e the event.
203: */
204: private void maybeShowPopup(final MouseEvent e) {
205: if (e.isPopupTrigger()) {
206: getCopyPopupMenu().show(getTable(), e.getX(), e.getY());
207: }
208: }
209: }
210:
211: }
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