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 }