root / trunk / libraries / libUI / src / org / gvsig / gui / beans / swing / treeTable / AbstractTreeTableModel.java @ 8238
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1 | 8226 | jorpiell | package org.gvsig.gui.beans.swing.treeTable; |
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2 | |||
3 | import javax.swing.event.EventListenerList; |
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4 | import javax.swing.event.TreeModelEvent; |
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5 | import javax.swing.event.TreeModelListener; |
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6 | import javax.swing.tree.TreePath; |
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7 | |||
8 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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9 | *
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10 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation; either version 2
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15 | * of the License, or (at your option) any later version.
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16 | *
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17 | * This program is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, write to the Free Software
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24 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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25 | *
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26 | * For more information, contact:
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27 | *
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28 | * Generalitat Valenciana
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29 | * Conselleria d'Infraestructures i Transport
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30 | * Av. Blasco Ib??ez, 50
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31 | * 46010 VALENCIA
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32 | * SPAIN
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33 | *
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34 | * +34 963862235
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35 | * gvsig@gva.es
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36 | * www.gvsig.gva.es
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37 | *
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38 | * or
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39 | *
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40 | * IVER T.I. S.A
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41 | * Salamanca 50
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42 | * 46005 Valencia
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43 | * Spain
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44 | *
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45 | * +34 963163400
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46 | * dac@iver.es
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47 | */
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48 | /* CVS MESSAGES:
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49 | *
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50 | * $Id$
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51 | * $Log$
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52 | 8238 | jorpiell | * Revision 1.2 2006-10-23 11:13:55 jorpiell
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53 | * A?adida la posibilidad de recargar el ?rbol tantas veces como queramos
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54 | *
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55 | * Revision 1.1 2006/10/23 08:18:39 jorpiell
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56 | 8226 | jorpiell | * A?adida la clase treetable
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57 | *
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58 | *
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59 | */
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60 | /**
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61 | * @author Jorge Piera Llodr? (piera_jor@gva.es)
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62 | */
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63 | public abstract class AbstractTreeTableModel implements TreeTableModel { |
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64 | protected Object root; |
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65 | protected EventListenerList listenerList = new EventListenerList(); |
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66 | |||
67 | public AbstractTreeTableModel(Object root) { |
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68 | 8238 | jorpiell | setNodes(root); |
69 | } |
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70 | |||
71 | public void setNodes(Object root){ |
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72 | if (root == null){ |
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73 | this.root = new Root(new Object[0]); |
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74 | }else if (root instanceof Object[]){ |
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75 | 8226 | jorpiell | this.root = new Root((Object[])root); |
76 | }else{
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77 | this.root = root;
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78 | } |
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79 | } |
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80 | |||
81 | //
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82 | // Default implmentations for methods in the TreeModel interface.
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83 | //
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84 | |||
85 | public Object getRoot() { |
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86 | return root;
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87 | } |
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88 | |||
89 | public boolean isLeaf(Object node) { |
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90 | return getChildCount(node) == 0; |
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91 | } |
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92 | |||
93 | public void valueForPathChanged(TreePath path, Object newValue) {} |
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94 | |||
95 | // This is not called in the JTree's default mode: use a naive implementation.
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96 | public int getIndexOfChild(Object parent, Object child) { |
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97 | for (int i = 0; i < getChildCount(parent); i++) { |
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98 | if (getChild(parent, i).equals(child)) {
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99 | return i;
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100 | } |
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101 | } |
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102 | return -1; |
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103 | } |
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104 | |||
105 | public void addTreeModelListener(TreeModelListener l) { |
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106 | listenerList.add(TreeModelListener.class, l);
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107 | } |
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108 | |||
109 | public void removeTreeModelListener(TreeModelListener l) { |
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110 | listenerList.remove(TreeModelListener.class, l);
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111 | } |
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112 | |||
113 | /*
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114 | * Notify all listeners that have registered interest for
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115 | * notification on this event type. The event instance
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116 | * is lazily created using the parameters passed into
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117 | * the fire method.
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118 | * @see EventListenerList
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119 | */
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120 | protected void fireTreeNodesChanged(Object source, Object[] path, |
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121 | int[] childIndices, |
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122 | Object[] children) { |
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123 | // Guaranteed to return a non-null array
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124 | Object[] listeners = listenerList.getListenerList(); |
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125 | TreeModelEvent e = null; |
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126 | // Process the listeners last to first, notifying
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127 | // those that are interested in this event
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128 | for (int i = listeners.length-2; i>=0; i-=2) { |
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129 | if (listeners[i]==TreeModelListener.class) { |
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130 | // Lazily create the event:
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131 | if (e == null) |
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132 | e = new TreeModelEvent(source, path, |
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133 | childIndices, children); |
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134 | ((TreeModelListener)listeners[i+1]).treeNodesChanged(e); |
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135 | } |
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136 | } |
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137 | } |
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138 | |||
139 | /*
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140 | * Notify all listeners that have registered interest for
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141 | * notification on this event type. The event instance
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142 | * is lazily created using the parameters passed into
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143 | * the fire method.
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144 | * @see EventListenerList
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145 | */
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146 | protected void fireTreeNodesInserted(Object source, Object[] path, |
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147 | int[] childIndices, |
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148 | Object[] children) { |
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149 | // Guaranteed to return a non-null array
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150 | Object[] listeners = listenerList.getListenerList(); |
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151 | TreeModelEvent e = null; |
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152 | // Process the listeners last to first, notifying
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153 | // those that are interested in this event
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154 | for (int i = listeners.length-2; i>=0; i-=2) { |
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155 | if (listeners[i]==TreeModelListener.class) { |
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156 | // Lazily create the event:
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157 | if (e == null) |
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158 | e = new TreeModelEvent(source, path, |
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159 | childIndices, children); |
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160 | ((TreeModelListener)listeners[i+1]).treeNodesInserted(e); |
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161 | } |
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162 | } |
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163 | } |
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164 | |||
165 | /*
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166 | * Notify all listeners that have registered interest for
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167 | * notification on this event type. The event instance
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168 | * is lazily created using the parameters passed into
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169 | * the fire method.
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170 | * @see EventListenerList
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171 | */
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172 | protected void fireTreeNodesRemoved(Object source, Object[] path, |
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173 | int[] childIndices, |
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174 | Object[] children) { |
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175 | // Guaranteed to return a non-null array
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176 | Object[] listeners = listenerList.getListenerList(); |
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177 | TreeModelEvent e = null; |
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178 | // Process the listeners last to first, notifying
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179 | // those that are interested in this event
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180 | for (int i = listeners.length-2; i>=0; i-=2) { |
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181 | if (listeners[i]==TreeModelListener.class) { |
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182 | // Lazily create the event:
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183 | if (e == null) |
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184 | e = new TreeModelEvent(source, path, |
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185 | childIndices, children); |
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186 | ((TreeModelListener)listeners[i+1]).treeNodesRemoved(e); |
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187 | } |
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188 | } |
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189 | } |
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190 | |||
191 | /*
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192 | * Notify all listeners that have registered interest for
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193 | * notification on this event type. The event instance
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194 | * is lazily created using the parameters passed into
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195 | * the fire method.
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196 | * @see EventListenerList
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197 | */
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198 | protected void fireTreeStructureChanged(Object source, Object[] path, |
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199 | int[] childIndices, |
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200 | Object[] children) { |
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201 | // Guaranteed to return a non-null array
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202 | Object[] listeners = listenerList.getListenerList(); |
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203 | TreeModelEvent e = null; |
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204 | // Process the listeners last to first, notifying
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205 | // those that are interested in this event
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206 | for (int i = listeners.length-2; i>=0; i-=2) { |
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207 | if (listeners[i]==TreeModelListener.class) { |
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208 | // Lazily create the event:
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209 | if (e == null) |
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210 | e = new TreeModelEvent(source, path, |
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211 | childIndices, children); |
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212 | ((TreeModelListener)listeners[i+1]).treeStructureChanged(e); |
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213 | } |
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214 | } |
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215 | } |
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216 | |||
217 | //
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218 | // Default impelmentations for methods in the TreeTableModel interface.
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219 | //
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220 | |||
221 | public Class getColumnClass(int column) { return Object.class; } |
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222 | |||
223 | /** By default, make the column with the Tree in it the only editable one.
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224 | * Making this column editable causes the JTable to forward mouse
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225 | * and keyboard events in the Tree column to the underlying JTree.
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226 | */
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227 | public boolean isCellEditable(Object node, int column) { |
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228 | return getColumnClass(column) == TreeTableModel.class;
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229 | } |
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230 | |||
231 | public void setValueAt(Object aValue, Object node, int column) {} |
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232 | |||
233 | /**
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234 | * This class will be the root for the trees "without root"
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235 | * @author Jorge Piera Llodr? (piera_jor@gva.es)
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236 | *
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237 | */
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238 | public class Root{ |
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239 | private Object[] leafs = null; |
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240 | |||
241 | public Root(Object[] leafs){ |
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242 | this.leafs = leafs;
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243 | } |
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244 | |||
245 | public String toString(){ |
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246 | return ""; |
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247 | } |
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248 | |||
249 | public int getChildCount(){ |
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250 | if (leafs == null){ |
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251 | return 0; |
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252 | } |
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253 | return leafs.length;
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254 | } |
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255 | |||
256 | /**
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257 | * @return Returns the leafs.
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258 | */
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259 | public Object[] getChildren() { |
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260 | return leafs;
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261 | } |
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262 | } |
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263 | |||
264 | } |