libjava/javax/swing/tree/DefaultTreeModel.java

   1 /* DefaultTreeModel.java --
   2    Copyright (C) 2002, 2004  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38
  39 package javax.swing.tree;
  40
  41 import java.io.IOException;
  42 import java.io.ObjectInputStream;
  43 import java.io.ObjectOutputStream;
  44 import java.io.Serializable;
  45 import java.util.EventListener;
  46
  47 import javax.swing.event.EventListenerList;
  48 import javax.swing.event.TreeModelEvent;
  49 import javax.swing.event.TreeModelListener;
  50
  51 /**
  52  * DefaultTreeModel
  53  * @author Andrew Selkirk
  54  */
  55 public class DefaultTreeModel
  56   implements Serializable, TreeModel
  57 {
  58   static final long serialVersionUID = -2621068368932566998L;
  59
  60   /**
  61    * root
  62    */
  63   protected TreeNode root = null;
  64
  65   /**
  66    * listenerList
  67    */
  68   protected EventListenerList listenerList = new EventListenerList();
  69
  70   /**
  71    * asksAllowsChildren
  72    */
  73   protected boolean asksAllowsChildren;
  74
  75   /**
  76    * Constructor DefaultTreeModel
  77    * @param value0 TODO
  78    */
  79   public DefaultTreeModel(TreeNode root)
  80   {
  81     setRoot(root);
  82   }
  83
  84   /**
  85    * Constructor DefaultTreeModel
  86    * @param value0 TODO
  87    * @param value1 TODO
  88    */
  89   public DefaultTreeModel(TreeNode root, boolean asksAllowsChildren)
  90   {
  91     setRoot(root);
  92     this.asksAllowsChildren = asksAllowsChildren;
  93   }
  94
  95   /**
  96    * writeObject
  97    * @param value0 TODO
  98    * @exception IOException TODO
  99    */
 100   private void writeObject(ObjectOutputStream value0) throws IOException
 101   {
 102     // TODO
 103   }
 104
 105   /**
 106    * readObject
 107    * @param value0 TODO
 108    * @exception IOException TODO
 109    * @exception ClassNotFoundException TODO
 110    */
 111   private void readObject(ObjectInputStream value0)
 112     throws IOException, ClassNotFoundException
 113   {
 114     // TODO
 115   }
 116
 117   /**
 118    * asksAllowsChildren
 119    * @return boolean
 120    */
 121   public boolean asksAllowsChildren()
 122   {
 123     return asksAllowsChildren;
 124   }
 125
 126   /**
 127    * setAsksAllowsChildren
 128    * @param value0 TODO
 129    */
 130   public void setAsksAllowsChildren(boolean value)
 131   {
 132     asksAllowsChildren = value; // TODO
 133   }
 134
 135   /**
 136    * setRoot
 137    * @param value0 TODO
 138    */
 139   public void setRoot(TreeNode root)
 140   {
 141     // Sanity Check
 142     if (root == null)
 143       {
 144         throw new IllegalArgumentException("null root");
 145       }
 146     // Set new root
 147     this.root = root;
 148
 149     // TODO
 150   }
 151
 152   /**
 153    * getRoot
 154    * @return Object
 155    */
 156   public Object getRoot()
 157   {
 158     return root;
 159   }
 160
 161   /**
 162    * getIndexOfChild
 163    * @param value0 TODO
 164    * @param value1 TODO
 165    * @return int
 166    */
 167   public int getIndexOfChild(Object parent, Object child)
 168   {
 169     return 0; // TODO
 170   }
 171
 172   /**
 173    * getChild
 174    * @param value0 TODO
 175    * @param value1 TODO
 176    * @return Object
 177    */
 178   public Object getChild(Object node, int idx)
 179   {
 180     if (node instanceof TreeNode)
 181       return ((TreeNode)node).getChildAt(idx);
 182     else
 183       return null;
 184   }
 185
 186   /**
 187    * getChildCount
 188    * @param value0 TODO
 189    * @return int
 190    */
 191   public int getChildCount(Object node)
 192   {
 193     if (node instanceof TreeNode)
 194       return ((TreeNode)node).getChildCount();
 195     else
 196       return 0;
 197   }
 198
 199   /**
 200    * isLeaf
 201    * @param value0 TODO
 202    * @return boolean
 203    */
 204   public boolean isLeaf(Object node)
 205   {
 206     if (node instanceof TreeNode)
 207       return ((TreeNode)node).isLeaf();
 208     else
 209       return true;
 210   }
 211
 212   /**
 213    * reload
 214    */
 215   public void reload()
 216   {
 217     // TODO
 218   }
 219
 220   /**
 221    * reload
 222    * @param value0 TODO
 223    */
 224   public void reload(TreeNode value0)
 225   {
 226     // TODO
 227   }
 228
 229   /**
 230    * valueForPathChanged
 231    * @param value0 TODO
 232    * @param value1 TODO
 233    */
 234   public void valueForPathChanged(TreePath value0, Object value1)
 235   {
 236     // TODO
 237   }
 238
 239   /**
 240    * insertNodeInto
 241    * @param value0 TODO
 242    * @param value1 TODO
 243    * @param value2 TODO
 244    */
 245   public void insertNodeInto(MutableTreeNode value0, MutableTreeNode value1,
 246                              int value2)
 247   {
 248     // TODO
 249   }
 250
 251   /**
 252    * removeNodeFromParent
 253    * @param value0 TODO
 254    */
 255   public void removeNodeFromParent(MutableTreeNode value0)
 256   {
 257     // TODO
 258   }
 259
 260   /**
 261    * nodeChanged
 262    * @param value0 TODO
 263    */
 264   public void nodeChanged(TreeNode value0)
 265   {
 266     // TODO
 267   }
 268
 269   /**
 270    * nodesWereInserted
 271    * @param value0 TODO
 272    * @param value1 TODO
 273    */
 274   public void nodesWereInserted(TreeNode value0, int[] value1)
 275   {
 276     // TODO
 277   }
 278
 279   /**
 280    * nodesWereRemoved
 281    * @param value0 TODO
 282    * @param value1 TODO
 283    * @param value2 TODO
 284    */
 285   public void nodesWereRemoved(TreeNode value0, int[] value1, Object[] value2)
 286   {
 287     // TODO
 288   }
 289
 290   /**
 291    * nodesChanged
 292    * @param value0 TODO
 293    * @param value1 TODO
 294    */
 295   public void nodesChanged(TreeNode value0, int[] value1)
 296   {
 297     // TODO
 298   }
 299
 300   /**
 301    * nodeStructureChanged
 302    * @param value0 TODO
 303    */
 304   public void nodeStructureChanged(TreeNode value0)
 305   {
 306     // TODO
 307   }
 308
 309   /**
 310    * getPathToRoot
 311    * @param value0 TODO
 312    * @return TreeNode[]
 313    */
 314   public TreeNode[] getPathToRoot(TreeNode value0)
 315   {
 316     return null; // TODO
 317   }
 318
 319   /**
 320    * getPathToRoot
 321    * @param value0 TODO
 322    * @param value1 TODO
 323    * @return TreeNode[]
 324    */
 325   protected TreeNode[] getPathToRoot(TreeNode value0, int value1)
 326   {
 327     return null; // TODO
 328   }
 329
 330   /**
 331    * Registers a listere to the model.
 332    *
 333    * @param listener the listener to add
 334    */
 335   public void addTreeModelListener(TreeModelListener listener)
 336   {
 337     listenerList.add(TreeModelListener.class, listener);
 338   }
 339
 340   /**
 341    * Removes a listener from the model.
 342    *
 343    * @param listener the listener to remove
 344    */
 345   public void removeTreeModelListener(TreeModelListener listener)
 346   {
 347     listenerList.remove(TreeModelListener.class, listener);
 348   }
 349
 350   /**
 351    * Returns all registered <code>TreeModelListener</code> listeners.
 352    *
 353    * @return an array of listeners.
 354    *
 355    * @since 1.4
 356    */
 357   public TreeModelListener[] getTreeModelListeners()
 358   {
 359     return (TreeModelListener[]) listenerList.getListeners(TreeModelListener.class);
 360   }
 361
 362   /**
 363    * fireTreeNodesChanged
 364    *
 365    * @param source the node being changed
 366    * @param path the path to the root node
 367    * @param childIndices the indices of the changed elements
 368    * @param children the changed elements
 369    */
 370   protected void fireTreeNodesChanged(Object source, Object[] path,
 371                                       int[] childIndices, Object[] children)
 372   {
 373     TreeModelEvent event =
 374       new TreeModelEvent(source, path, childIndices, children);
 375     TreeModelListener[] listeners = getTreeModelListeners();
 376
 377     for (int i = listeners.length - 1; i >= 0; --i)
 378       listeners[i].treeNodesChanged(event);
 379   }
 380
 381   /**
 382    * fireTreeNodesInserted
 383    *
 384    * @param source the node where new nodes got inserted
 385    * @param path the path to the root node
 386    * @param childIndices the indices of the new elements
 387    * @param children the new elements
 388    */
 389   protected void fireTreeNodesInserted(Object source, Object[] path,
 390                                        int[] childIndices, Object[] children)
 391   {
 392     TreeModelEvent event =
 393       new TreeModelEvent(source, path, childIndices, children);
 394     TreeModelListener[] listeners = getTreeModelListeners();
 395
 396     for (int i = listeners.length - 1; i >= 0; --i)
 397       listeners[i].treeNodesInserted(event);
 398   }
 399
 400   /**
 401    * fireTreeNodesRemoved
 402    *
 403    * @param source the node where nodes got removed-
 404    * @param path the path to the root node
 405    * @param childIndices the indices of the removed elements
 406    * @param children the removed elements
 407    */
 408   protected void fireTreeNodesRemoved(Object source, Object[] path,
 409                                       int[] childIndices, Object[] children)
 410   {
 411     TreeModelEvent event =
 412       new TreeModelEvent(source, path, childIndices, children);
 413     TreeModelListener[] listeners = getTreeModelListeners();
 414
 415     for (int i = listeners.length - 1; i >= 0; --i)
 416       listeners[i].treeNodesRemoved(event);
 417   }
 418
 419   /**
 420    * fireTreeStructureChanged
 421    *
 422    * @param source the node where the model has changed
 423    * @param path the path to the root node
 424    * @param childIndices the indices of the affected elements
 425    * @param children the affected elements
 426    */
 427   protected void fireTreeStructureChanged(Object source, Object[] path,
 428                                           int[] childIndices, Object[] children)
 429   {
 430     TreeModelEvent event =
 431       new TreeModelEvent(source, path, childIndices, children);
 432     TreeModelListener[] listeners = getTreeModelListeners();
 433
 434     for (int i = listeners.length - 1; i >= 0; --i)
 435       listeners[i].treeStructureChanged(event);
 436   }
 437
 438   /**
 439    * Returns the registered listeners of a given type.
 440    *
 441    * @param listenerType the listener type to return
 442    *
 443    * @return an array of listeners
 444    *
 445    * @since 1.3
 446    */
 447   public EventListener[] getListeners(Class listenerType)
 448   {
 449     return listenerList.getListeners(listenerType);
 450   }
 451 }