edu.umd.cfar.lamp.viper.util
Interface ViperSelection

All Known Subinterfaces:

NodeVisibilityManager, ViperSubTree

All Known Implementing Classes:

AbstractViperSelection, AbstractViperSubTree

public interface ViperSelection

Simple selection interface for viper data.

Method Summary

void	addChangeListener(javax.swing.event.ChangeListener l) Adds a change listener to the selection.
javax.swing.event.ChangeListener[]	getChangeListeners() Gets a list of the attached listeners.
boolean	isEmpty() Tests to see if something is selected.
boolean	isSelected(Node n) Tests to see if the given node is selected.
void	removeChangeListener(javax.swing.event.ChangeListener l) Removes the attached listener.

Method Detail

isSelected

public boolean isSelected(Node n)

Tests to see if the given node is selected.

Parameters:

n - the viper data node to test

Returns:

true iff the node is selected

addChangeListener

public void addChangeListener(javax.swing.event.ChangeListener l)

Adds a change listener to the selection. The listener is to be notified whenver the collection of selected objects changes.

Parameters:

l - an event listener

removeChangeListener

public void removeChangeListener(javax.swing.event.ChangeListener l)

Removes the attached listener.

Parameters:

l - an event listener

getChangeListeners

public javax.swing.event.ChangeListener[] getChangeListeners()

Gets a list of the attached listeners.

Returns:

all currently attached listeners

isEmpty

public boolean isEmpty()

Tests to see if something is selected.

Returns:

if anything is selected