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org.greenstone.gatherer.util
Class TreeSynchronizer  

java.lang.Object
  java.util.AbstractCollection
      java.util.AbstractList
          java.util.Vector
              org.greenstone.gatherer.util.TreeSynchronizer

All Implemented Interfaces:

java.lang.Cloneable, java.util.Collection, java.util.EventListener, java.util.List, java.util.RandomAccess, java.io.Serializable, javax.swing.event.TreeExpansionListener, javax.swing.event.TreeSelectionListener

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public final class TreeSynchronizer

extends java.util.Vector

implements javax.swing.event.TreeExpansionListener, javax.swing.event.TreeSelectionListener

My latest diabolical class synchronizes the expansion state of two or more JTrees. Muh-hahahaha. Note that these tree should be based on the same model. If they aren't it won't work. So there.

Version:

2.1

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Nested Class Summary

 

Nested classes inherited from class java.util.AbstractList

 

Field Summary
private  boolean	ignore           true if we should temporarily ignore further events, most likely because we know our actions are causing them.
private  java.util.Vector	selection_listeners           A list of tree selection listeners.

 

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

 

Fields inherited from class java.util.AbstractList

modCount

 

Constructor Summary

TreeSynchronizer()

 

Method Summary
void	add(javax.swing.JTree tree)           Add a new tree to the synchronization list of trees to be synchronized.
void	addTreeSelectionListener(javax.swing.event.TreeSelectionListener listener)           We allow the Gatherer to add tree listeners to this class, as it persists between collection changes transparently.
void	treeCollapsed(javax.swing.event.TreeExpansionEvent event)           Called whenever an item in the tree has been collapsed.
void	treeExpanded(javax.swing.event.TreeExpansionEvent event)           Called whenever an item in the tree has been expanded.
void	valueChanged(javax.swing.event.TreeSelectionEvent event)           Called whenever the one of the trees selection changes.

 

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize

 

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

 

Methods inherited from class java.util.AbstractCollection

 

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

 

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

 

Field Detail

ignore

private boolean ignore

true if we should temporarily ignore further events, most likely because we know our actions are causing them.

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selection_listeners

private java.util.Vector selection_listeners

A list of tree selection listeners.

Constructor Detail

TreeSynchronizer

public TreeSynchronizer()

Method Detail

add

public void add(javax.swing.JTree tree)

Add a new tree to the synchronization list of trees to be synchronized.

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addTreeSelectionListener

public void addTreeSelectionListener(javax.swing.event.TreeSelectionListener listener)

We allow the Gatherer to add tree listeners to this class, as it persists between collection changes transparently. Thus there is no need to reattach listeners everytime the collection changes.

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treeCollapsed

public void treeCollapsed(javax.swing.event.TreeExpansionEvent event)

Called whenever an item in the tree has been collapsed.

Specified by:

treeCollapsed in interface javax.swing.event.TreeExpansionListener

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treeExpanded

public void treeExpanded(javax.swing.event.TreeExpansionEvent event)

Called whenever an item in the tree has been expanded.

Specified by:

treeExpanded in interface javax.swing.event.TreeExpansionListener

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valueChanged

public void valueChanged(javax.swing.event.TreeSelectionEvent event)

Called whenever the one of the trees selection changes.

Specified by:

valueChanged in interface javax.swing.event.TreeSelectionListener

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