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 * InsetsChooserPanel.java
029 * -----------------------
030 * (C) Copyright 2000-2008, by Andrzej Porebski and Contributors.
031 *
032 * Original Author: Andrzej Porebski;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 * Arnaud Lelievre;
035 *
036 * $Id: InsetsChooserPanel.java,v 1.8 2008/12/18 09:57:32 mungady Exp $
037 *
038 * Changes (from 7-Nov-2001)
039 * -------------------------
040 * 07-Nov-2001 : Added to com.jrefinery.ui package (DG);
041 * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
042 * 03-Feb-2003 : Added Math.abs() to ensure no negative insets can be set (DG);
043 * 08-Sep-2003 : Added internationalization via use of properties
044 * resourceBundle (RFE 690236) (AL);
045 * 07-Oct-2005 : Renamed getInsets() --> getInsetsValue() to avoid conflict
046 * with JComponent's getInsets() (DG);
047 * 18-Dec-2008 : Use ResourceBundleWrapper - see JFreeChart patch 1607918 by
048 * Jess Thrysoee (DG);
049 *
050 */
051
052 package org.jfree.ui;
053
054 import java.awt.BorderLayout;
055 import java.awt.GridBagConstraints;
056 import java.awt.GridBagLayout;
057 import java.awt.Insets;
058 import java.util.ResourceBundle;
059
060 import javax.swing.JLabel;
061 import javax.swing.JPanel;
062 import javax.swing.JTextField;
063 import javax.swing.border.TitledBorder;
064
065 import org.jfree.util.ResourceBundleWrapper;
066
067 /**
068 * A component for editing an instance of the Insets class.
069 *
070 * @author Andrzej Porebski
071 */
072 public class InsetsChooserPanel extends JPanel {
073
074 /** A text field for the 'top' setting. */
075 private JTextField topValueEditor;
076
077 /** A text field for the 'left' setting. */
078 private JTextField leftValueEditor;
079
080 /** A text field for the 'bottom' setting. */
081 private JTextField bottomValueEditor;
082
083 /** A text field for the 'right' setting. */
084 private JTextField rightValueEditor;
085
086 /** The resourceBundle for the localization. */
087 protected static ResourceBundle localizationResources
088 = ResourceBundleWrapper.getBundle(
089 "org.jfree.ui.LocalizationBundle");
090
091 /**
092 * Creates a chooser panel that allows manipulation of Insets values.
093 * The values are initialized to the empty insets (0,0,0,0).
094 */
095 public InsetsChooserPanel() {
096 this(new Insets(0, 0, 0, 0));
097 }
098
099 /**
100 * Creates a chooser panel that allows manipulation of Insets values.
101 * The values are initialized to the current values of provided insets.
102 *
103 * @param current the insets.
104 */
105 public InsetsChooserPanel(Insets current) {
106 current = (current == null) ? new Insets(0, 0, 0, 0) : current;
107
108 this.topValueEditor = new JTextField(new IntegerDocument(), ""
109 + current.top, 0);
110 this.leftValueEditor = new JTextField(new IntegerDocument(), ""
111 + current.left, 0);
112 this.bottomValueEditor = new JTextField(new IntegerDocument(), ""
113 + current.bottom, 0);
114 this.rightValueEditor = new JTextField(new IntegerDocument(), ""
115 + current.right, 0);
116
117 final JPanel panel = new JPanel(new GridBagLayout());
118 panel.setBorder(
119 new TitledBorder(localizationResources.getString("Insets")));
120
121 // First row
122 panel.add(new JLabel(localizationResources.getString("Top")),
123 new GridBagConstraints(1, 0, 3, 1, 0.0, 0.0,
124 GridBagConstraints.CENTER, GridBagConstraints.NONE,
125 new Insets(0, 0, 0, 0), 0, 0));
126
127 // Second row
128 panel.add(new JLabel(" "), new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0,
129 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
130 new Insets(0, 12, 0, 12), 8, 0));
131 panel.add(this.topValueEditor, new GridBagConstraints(2, 1, 1, 1, 0.0,
132 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
133 new Insets(0, 0, 0, 0), 0, 0));
134 panel.add(new JLabel(" "), new GridBagConstraints(3, 1, 1, 1, 0.0, 0.0,
135 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
136 new Insets(0, 12, 0, 11), 8, 0));
137
138 // Third row
139 panel.add(new JLabel(localizationResources.getString("Left")),
140 new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0,
141 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
142 new Insets(0, 4, 0, 4), 0, 0));
143 panel.add(this.leftValueEditor, new GridBagConstraints(1, 2, 1, 1,
144 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
145 new Insets(0, 0, 0, 0), 0, 0));
146 panel.add(new JLabel(" "), new GridBagConstraints(2, 2, 1, 1, 0.0, 0.0,
147 GridBagConstraints.CENTER, GridBagConstraints.NONE,
148 new Insets(0, 12, 0, 12), 8, 0));
149 panel.add(this.rightValueEditor, new GridBagConstraints(3, 2, 1, 1,
150 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
151 new Insets(0, 0, 0, 0), 0, 0));
152 panel.add(new JLabel(localizationResources.getString("Right")),
153 new GridBagConstraints(4, 2, 1, 1, 0.0, 0.0,
154 GridBagConstraints.CENTER, GridBagConstraints.NONE,
155 new Insets(0, 4, 0, 4), 0, 0));
156
157 // Fourth row
158 panel.add(this.bottomValueEditor, new GridBagConstraints(2, 3, 1, 1,
159 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
160 new Insets(0, 0, 0, 0), 0, 0));
161
162 // Fifth row
163 panel.add(new JLabel(localizationResources.getString("Bottom")),
164 new GridBagConstraints(1, 4, 3, 1, 0.0, 0.0,
165 GridBagConstraints.CENTER, GridBagConstraints.NONE,
166 new Insets(0, 0, 0, 0), 0, 0));
167 setLayout(new BorderLayout());
168 add(panel, BorderLayout.CENTER);
169
170 }
171
172 /**
173 * Returns a new <code>Insets</code> instance to match the values entered
174 * on the panel.
175 *
176 * @return The insets.
177 */
178 public Insets getInsetsValue() {
179 return new Insets(
180 Math.abs(stringToInt(this.topValueEditor.getText())),
181 Math.abs(stringToInt(this.leftValueEditor.getText())),
182 Math.abs(stringToInt(this.bottomValueEditor.getText())),
183 Math.abs(stringToInt(this.rightValueEditor.getText())));
184 }
185
186 /**
187 * Converts a string representing an integer into its numerical value.
188 * If this string does not represent a valid integer value, value of 0
189 * is returned.
190 *
191 * @param value the string.
192 *
193 * @return the value.
194 */
195 protected int stringToInt(String value) {
196 value = value.trim();
197 if (value.length() == 0) {
198 return 0;
199 }
200 else {
201 try {
202 return Integer.parseInt(value);
203 }
204 catch (NumberFormatException e) {
205 return 0;
206 }
207 }
208 }
209
210 /**
211 * Calls super removeNotify and removes all subcomponents from this panel.
212 */
213 public void removeNotify() {
214 super.removeNotify();
215 removeAll();
216 }
217
218 }