1 /* 2 * @(#)BasicTOCCellRenderer.java 1.25 06/10/30 3 * 4 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. 5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 6 * 7 * This code is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License version 2 only, as 9 * published by the Free Software Foundation. Sun designates this 10 * particular file as subject to the "Classpath" exception as provided 11 * by Sun in the LICENSE file that accompanied this code. 12 * 13 * This code is distributed in the hope that it will be useful, but WITHOUT 14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 16 * version 2 for more details (a copy is included in the LICENSE file that 17 * accompanied this code). 18 * 19 * You should have received a copy of the GNU General Public License version 20 * 2 along with this work; if not, write to the Free Software Foundation, 21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 22 * 23 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 24 * CA 95054 USA or visit www.sun.com if you need additional information or 25 * have any questions. 26 */ 27 /* 28 * @(#) BasicTOCCellRenderer.java 1.25 - last change made 10/30/06 29 */ 30 31 package javax.help.plaf.basic; 32 33 import javax.swing.*; 34 import javax.swing.tree.DefaultTreeCellRenderer; 35 import javax.swing.tree.DefaultMutableTreeNode; 36 import javax.swing.tree.TreeNode; 37 import java.awt.*; 38 import java.net.URL; 39 import java.util.Locale; 40 import javax.help.TOCItem; 41 import javax.help.TOCView; 42 import javax.help.Map; 43 import javax.help.HelpUtilities; 44 import javax.help.Map.ID; 45 46 /** 47 * Basic cell renderer for TOC UI. 48 * 49 * @author Roger D. Brinkley 50 * @author Eduardo Pelegri-Llopart 51 * @version 1.25 10/30/06 52 */ 53 54 public class BasicTOCCellRenderer extends DefaultTreeCellRenderer 55 { 56 protected Map map; 57 protected TOCView view; 58 BasicTOCCellRenderer(Map map)59 public BasicTOCCellRenderer(Map map) { 60 this(map, null); 61 } 62 BasicTOCCellRenderer(Map map, TOCView view)63 public BasicTOCCellRenderer(Map map, TOCView view) { 64 super(); 65 this.map = map; 66 this.view = view; 67 } 68 69 /** 70 * Configures the renderer based on the components passed in. 71 * Sets the value from messaging value with toString(). 72 * The foreground color is set based on the selection and the icon 73 * is set based on on leaf and expanded. 74 */ getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)75 public Component getTreeCellRendererComponent(JTree tree, Object value, 76 boolean sel, 77 boolean expanded, 78 boolean leaf, int row, 79 boolean hasFocus) 80 { 81 82 String stringValue = ""; 83 84 // variable hasFocus was private to DefaultTreeCellRenderer since jdk1.3 85 try { 86 this.hasFocus = hasFocus; 87 } catch (IllegalAccessError e) { 88 } 89 90 TOCItem item 91 = (TOCItem) ((DefaultMutableTreeNode) value).getUserObject(); 92 93 if (item != null) { 94 stringValue = item.getName(); 95 } 96 97 setText(stringValue); 98 if (sel) { 99 setForeground(getTextSelectionColor()); 100 } else { 101 setForeground(getTextNonSelectionColor()); 102 } 103 104 ImageIcon icon = null; 105 if (item != null) { 106 ID id = item.getImageID(); 107 if (id != null) { 108 try { 109 URL url = map.getURLFromID(id); 110 icon = new ImageIcon(url); 111 } catch (Exception e) { 112 } 113 } 114 } 115 116 // Set the locale of this if there is a lang value 117 if (item != null) { 118 Locale locale = item.getLocale(); 119 if (locale != null) { 120 setLocale(locale); 121 } 122 } 123 124 // determine which icon to display 125 if (icon != null) { 126 setIcon(icon); 127 } else if (leaf) { 128 setIcon(getLeafIcon()); 129 } else if (expanded) { 130 setIcon(getOpenIcon()); 131 } else { 132 setIcon(getClosedIcon()); 133 } 134 135 selected = sel; 136 137 return this; 138 } 139 getLeafIcon()140 public Icon getLeafIcon() { 141 Icon icon = null; 142 if (view != null) { 143 ID id = view.getTopicImageID(); 144 if (id != null) { 145 try { 146 URL url = map.getURLFromID(id); 147 icon = new ImageIcon(url); 148 return icon; 149 } catch (Exception e) { 150 } 151 } 152 } 153 return super.getLeafIcon(); 154 } 155 getOpenIcon()156 public Icon getOpenIcon() { 157 Icon icon = null; 158 if (view != null) { 159 ID id = view.getCategoryOpenImageID(); 160 if (id != null) { 161 try { 162 URL url = map.getURLFromID(id); 163 icon = new ImageIcon(url); 164 return icon; 165 } catch (Exception e) { 166 } 167 } 168 } 169 return super.getOpenIcon(); 170 } 171 getClosedIcon()172 public Icon getClosedIcon() { 173 Icon icon = null; 174 if (view != null) { 175 ID id = view.getCategoryClosedImageID(); 176 if (id != null) { 177 try { 178 URL url = map.getURLFromID(id); 179 icon = new ImageIcon(url); 180 return icon; 181 } catch (Exception e) { 182 } 183 } 184 } 185 return super.getClosedIcon(); 186 } 187 188 } 189