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 1.7 2007/11/02 17:50:36 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 import javax.swing.JLabel; 058 import javax.swing.JPanel; 059 import javax.swing.JTextField; 060 import javax.swing.border.TitledBorder; 061 062 /** 063 * A component for editing an instance of the Insets class. 064 * 065 * @author Andrzej Porebski 066 */ 067 public class InsetsChooserPanel extends JPanel { 068 069 /** A text field for the 'top' setting. */ 070 private JTextField topValueEditor; 071 072 /** A text field for the 'left' setting. */ 073 private JTextField leftValueEditor; 074 075 /** A text field for the 'bottom' setting. */ 076 private JTextField bottomValueEditor; 077 078 /** A text field for the 'right' setting. */ 079 private JTextField rightValueEditor; 080 081 /** The resourceBundle for the localization. */ 082 protected static ResourceBundle localizationResources = 083 ResourceBundle.getBundle("org.jfree.ui.LocalizationBundle"); 084 085 /** 086 * Creates a chooser panel that allows manipulation of Insets values. 087 * The values are initialized to the empty insets (0,0,0,0). 088 */ 089 public InsetsChooserPanel() { 090 this(new Insets(0, 0, 0, 0)); 091 } 092 093 /** 094 * Creates a chooser panel that allows manipulation of Insets values. 095 * The values are initialized to the current values of provided insets. 096 * 097 * @param current the insets. 098 */ 099 public InsetsChooserPanel(Insets current) { 100 current = (current == null) ? new Insets(0, 0, 0, 0) : current; 101 102 this.topValueEditor = new JTextField(new IntegerDocument(), "" 103 + current.top, 0); 104 this.leftValueEditor = new JTextField(new IntegerDocument(), "" 105 + current.left, 0); 106 this.bottomValueEditor = new JTextField(new IntegerDocument(), "" 107 + current.bottom, 0); 108 this.rightValueEditor = new JTextField(new IntegerDocument(), "" 109 + current.right, 0); 110 111 final JPanel panel = new JPanel(new GridBagLayout()); 112 panel.setBorder( 113 new TitledBorder(localizationResources.getString("Insets"))); 114 115 // First row 116 panel.add(new JLabel(localizationResources.getString("Top")), 117 new GridBagConstraints(1, 0, 3, 1, 0.0, 0.0, 118 GridBagConstraints.CENTER, GridBagConstraints.NONE, 119 new Insets(0, 0, 0, 0), 0, 0)); 120 121 // Second row 122 panel.add(new JLabel(" "), new GridBagConstraints(1, 1, 1, 1, 0.0, 0.0, 123 GridBagConstraints.CENTER, GridBagConstraints.BOTH, 124 new Insets(0, 12, 0, 12), 8, 0)); 125 panel.add(this.topValueEditor, new GridBagConstraints(2, 1, 1, 1, 0.0, 126 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, 127 new Insets(0, 0, 0, 0), 0, 0)); 128 panel.add(new JLabel(" "), new GridBagConstraints(3, 1, 1, 1, 0.0, 0.0, 129 GridBagConstraints.CENTER, GridBagConstraints.BOTH, 130 new Insets(0, 12, 0, 11), 8, 0)); 131 132 // Third row 133 panel.add(new JLabel(localizationResources.getString("Left")), 134 new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0, 135 GridBagConstraints.CENTER, GridBagConstraints.BOTH, 136 new Insets(0, 4, 0, 4), 0, 0)); 137 panel.add(this.leftValueEditor, new GridBagConstraints(1, 2, 1, 1, 138 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.BOTH, 139 new Insets(0, 0, 0, 0), 0, 0)); 140 panel.add(new JLabel(" "), new GridBagConstraints(2, 2, 1, 1, 0.0, 0.0, 141 GridBagConstraints.CENTER, GridBagConstraints.NONE, 142 new Insets(0, 12, 0, 12), 8, 0)); 143 panel.add(this.rightValueEditor, new GridBagConstraints(3, 2, 1, 1, 144 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, 145 new Insets(0, 0, 0, 0), 0, 0)); 146 panel.add(new JLabel(localizationResources.getString("Right")), 147 new GridBagConstraints(4, 2, 1, 1, 0.0, 0.0, 148 GridBagConstraints.CENTER, GridBagConstraints.NONE, 149 new Insets(0, 4, 0, 4), 0, 0)); 150 151 // Fourth row 152 panel.add(this.bottomValueEditor, new GridBagConstraints(2, 3, 1, 1, 153 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, 154 new Insets(0, 0, 0, 0), 0, 0)); 155 156 // Fifth row 157 panel.add(new JLabel(localizationResources.getString("Bottom")), 158 new GridBagConstraints(1, 4, 3, 1, 0.0, 0.0, 159 GridBagConstraints.CENTER, GridBagConstraints.NONE, 160 new Insets(0, 0, 0, 0), 0, 0)); 161 setLayout(new BorderLayout()); 162 add(panel, BorderLayout.CENTER); 163 164 } 165 166 /** 167 * Returns a new <code>Insets</code> instance to match the values entered 168 * on the panel. 169 * 170 * @return The insets. 171 */ 172 public Insets getInsetsValue() { 173 return new Insets( 174 Math.abs(stringToInt(this.topValueEditor.getText())), 175 Math.abs(stringToInt(this.leftValueEditor.getText())), 176 Math.abs(stringToInt(this.bottomValueEditor.getText())), 177 Math.abs(stringToInt(this.rightValueEditor.getText()))); 178 } 179 180 /** 181 * Converts a string representing an integer into its numerical value. 182 * If this string does not represent a valid integer value, value of 0 183 * is returned. 184 * 185 * @param value the string. 186 * 187 * @return the value. 188 */ 189 protected int stringToInt(String value) { 190 value = value.trim(); 191 if (value.length() == 0) { 192 return 0; 193 } 194 else { 195 try { 196 return Integer.parseInt(value); 197 } 198 catch (NumberFormatException e) { 199 return 0; 200 } 201 } 202 } 203 204 /** 205 * Calls super removeNotify and removes all subcomponents from this panel. 206 */ 207 public void removeNotify() { 208 super.removeNotify(); 209 removeAll(); 210 } 211 212 }