dist1.acb.ACBpoint
Class TopicsModel

java.lang.Object
  dist1.acb.ACBpoint.TopicsModel

All Implemented Interfaces:

javax.swing.tree.TreeModel

public class TopicsModel

extends java.lang.Object

implements javax.swing.tree.TreeModel

TreeModel used by the JTree in order to display hiearchical model of the Topics

Author:

Lazar Adzigogov

Constructor Summary

TopicsModel(Topic rootTopic)
Creates a new instance of TopicsModel

Method Summary

void	addTreeModelListener(javax.swing.event.TreeModelListener l) Adds a listener for the TreeModelEvent posted after the tree changes.
protected void	fireTreeStructureChanged(Topic oldRoot) The only event raised by this model is TreeStructureChanged with the root as path, ie the whole tree has changed.
java.lang.Object	getChild(java.lang.Object parent, int index) Returns the child of parent at index index in the parent's child array.
int	getChildCount(java.lang.Object parent) Returns the number of children of parent.
int	getIndexOfChild(java.lang.Object parent, java.lang.Object child) Returns the index of child in parent.
java.lang.Object	getRoot() Returns the root of the tree.
boolean	isLeaf(java.lang.Object node) Returns true if node is a leaf.
void	removeTreeModelListener(javax.swing.event.TreeModelListener l) Removes a listener previously added with addTreeModelListener().
void	showAncestor(boolean b, java.lang.Object newRoot) Used to toggle between show ancestors/show descendant and to change the root of the tree.
void	valueForPathChanged(javax.swing.tree.TreePath path, java.lang.Object newValue) Messaged when the user has altered the value for the item identified by path to newValue.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TopicsModel

public TopicsModel(Topic rootTopic)

Creates a new instance of TopicsModel

Method Detail

showAncestor

public void showAncestor(boolean b,
                         java.lang.Object newRoot)

Used to toggle between show ancestors/show descendant and to change the root of the tree.

fireTreeStructureChanged

protected void fireTreeStructureChanged(Topic oldRoot)

The only event raised by this model is TreeStructureChanged with the root as path, ie the whole tree has changed.

addTreeModelListener

public void addTreeModelListener(javax.swing.event.TreeModelListener l)

Adds a listener for the TreeModelEvent posted after the tree changes.

Specified by:

addTreeModelListener in interface javax.swing.tree.TreeModel

getChild

public java.lang.Object getChild(java.lang.Object parent,
                                 int index)

Returns the child of parent at index index in the parent's child array.

Specified by:

getChild in interface javax.swing.tree.TreeModel

getChildCount

public int getChildCount(java.lang.Object parent)

Returns the number of children of parent.

Specified by:

getChildCount in interface javax.swing.tree.TreeModel

getIndexOfChild

public int getIndexOfChild(java.lang.Object parent,
                           java.lang.Object child)

Returns the index of child in parent.

Specified by:

getIndexOfChild in interface javax.swing.tree.TreeModel

getRoot

public java.lang.Object getRoot()

Returns the root of the tree.

Specified by:

getRoot in interface javax.swing.tree.TreeModel

isLeaf

public boolean isLeaf(java.lang.Object node)

Returns true if node is a leaf.

Specified by:

isLeaf in interface javax.swing.tree.TreeModel

removeTreeModelListener

public void removeTreeModelListener(javax.swing.event.TreeModelListener l)

Removes a listener previously added with addTreeModelListener().

Specified by:

removeTreeModelListener in interface javax.swing.tree.TreeModel

valueForPathChanged

public void valueForPathChanged(javax.swing.tree.TreePath path,
                                java.lang.Object newValue)

Messaged when the user has altered the value for the item identified by path to newValue. Not used by this model.

Specified by:

valueForPathChanged in interface javax.swing.tree.TreeModel