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 * InsetsChooserPanel.java
029 * -----------------------
030 * (C) Copyright 2000-2005, 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 1.6 2005/11/16 15:58:41 taqua 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 *
048 */
049
050 package org.jfree.ui;
051
052 import java.awt.BorderLayout;
053 import java.awt.GridBagConstraints;
054 import java.awt.GridBagLayout;
055 import java.awt.Insets;
056 import java.util.ResourceBundle;
057
058 import javax.swing.JLabel;
059 import javax.swing.JPanel;
060 import javax.swing.JTextField;
061 import javax.swing.border.TitledBorder;
062
063 /**
064 * A component for editing an instance of the Insets class.
065 *
066 * @author Andrzej Porebski
067 */
068 public class InsetsChooserPanel extends JPanel {
069
070 /** A text field for the 'top' setting. */
071 private JTextField topValueEditor;
072
073 /** A text field for the 'left' setting. */
074 private JTextField leftValueEditor;
075
076 /** A text field for the 'bottom' setting. */
077 private JTextField bottomValueEditor;
078
079 /** A text field for the 'right' setting. */
080 private JTextField rightValueEditor;
081
082 /** The resourceBundle for the localization. */
083 protected static ResourceBundle localizationResources =
084 ResourceBundle.getBundle("org.jfree.ui.LocalizationBundle");
085
086 /**
087 * Creates a chooser panel that allows manipulation of Insets values.
088 * The values are initialized to the empty insets (0,0,0,0).
089 */
090 public InsetsChooserPanel() {
091 this(new Insets(0, 0, 0, 0));
092 }
093
094 /**
095 * Creates a chooser panel that allows manipulation of Insets values.
096 * The values are initialized to the current values of provided insets.
097 *
098 * @param current the insets.
099 */
100 public InsetsChooserPanel(Insets current) {
101 current = (current == null) ? new Insets(0, 0, 0, 0) : current;
102
103 this.topValueEditor = new JTextField(new IntegerDocument(), ""
104 + current.top, 0);
105 this.leftValueEditor = new JTextField(new IntegerDocument(), ""
106 + current.left, 0);
107 this.bottomValueEditor = new JTextField(new IntegerDocument(), ""
108 + current.bottom, 0);
109 this.rightValueEditor = new JTextField(new IntegerDocument(), ""
110 + current.right, 0);
111
112 final JPanel panel = new JPanel(new GridBagLayout());
113 panel.setBorder(
114 new TitledBorder(localizationResources.getString("Insets")));
115
116 // First row
117 panel.add(new JLabel(localizationResources.getString("Top")),
118 new GridBagConstraints(1, 0, 3, 1, 0.0, 0.0,
119 GridBagConstraints.CENTER, GridBagConstraints.NONE,
120 new Insets(0, 0, 0, 0), 0, 0));
121
122 // Second row
123 panel.add(new JLabel(" "), new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0,
124 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
125 new Insets(0, 12, 0, 12), 8, 0));
126 panel.add(this.topValueEditor, new GridBagConstraints(2, 1, 1, 1, 0.0,
127 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
128 new Insets(0, 0, 0, 0), 0, 0));
129 panel.add(new JLabel(" "), new GridBagConstraints(3, 1, 1, 1, 0.0, 0.0,
130 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
131 new Insets(0, 12, 0, 11), 8, 0));
132
133 // Third row
134 panel.add(new JLabel(localizationResources.getString("Left")),
135 new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0,
136 GridBagConstraints.CENTER, GridBagConstraints.BOTH,
137 new Insets(0, 4, 0, 4), 0, 0));
138 panel.add(this.leftValueEditor, new GridBagConstraints(1, 2, 1, 1,
139 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
140 new Insets(0, 0, 0, 0), 0, 0));
141 panel.add(new JLabel(" "), new GridBagConstraints(2, 2, 1, 1, 0.0, 0.0,
142 GridBagConstraints.CENTER, GridBagConstraints.NONE,
143 new Insets(0, 12, 0, 12), 8, 0));
144 panel.add(this.rightValueEditor, new GridBagConstraints(3, 2, 1, 1,
145 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
146 new Insets(0, 0, 0, 0), 0, 0));
147 panel.add(new JLabel(localizationResources.getString("Right")),
148 new GridBagConstraints(4, 2, 1, 1, 0.0, 0.0,
149 GridBagConstraints.CENTER, GridBagConstraints.NONE,
150 new Insets(0, 4, 0, 4), 0, 0));
151
152 // Fourth row
153 panel.add(this.bottomValueEditor, new GridBagConstraints(2, 3, 1, 1,
154 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
155 new Insets(0, 0, 0, 0), 0, 0));
156
157 // Fifth row
158 panel.add(new JLabel(localizationResources.getString("Bottom")),
159 new GridBagConstraints(1, 4, 3, 1, 0.0, 0.0,
160 GridBagConstraints.CENTER, GridBagConstraints.NONE,
161 new Insets(0, 0, 0, 0), 0, 0));
162 setLayout(new BorderLayout());
163 add(panel, BorderLayout.CENTER);
164
165 }
166
167 /**
168 * Returns a new <code>Insets</code> instance to match the values entered
169 * on the panel.
170 *
171 * @return The insets.
172 */
173 public Insets getInsetsValue() {
174 return new Insets(
175 Math.abs(stringToInt(this.topValueEditor.getText())),
176 Math.abs(stringToInt(this.leftValueEditor.getText())),
177 Math.abs(stringToInt(this.bottomValueEditor.getText())),
178 Math.abs(stringToInt(this.rightValueEditor.getText())));
179 }
180
181 /**
182 * Converts a string representing an integer into its numerical value.
183 * If this string does not represent a valid integer value, value of 0
184 * is returned.
185 *
186 * @param value the string.
187 *
188 * @return the value.
189 */
190 protected int stringToInt(String value) {
191 value = value.trim();
192 if (value.length() == 0) {
193 return 0;
194 }
195 else {
196 try {
197 return Integer.parseInt(value);
198 }
199 catch (NumberFormatException e) {
200 return 0;
201 }
202 }
203 }
204
205 /**
206 * Calls super removeNotify and removes all subcomponents from this panel.
207 */
208 public void removeNotify() {
209 super.removeNotify();
210 removeAll();
211 }
212
213 }