edu.umd.cs.jazz.event
Class ZSelectionDeleteHandler

java.lang.Object
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  +--edu.umd.cs.jazz.event.ZFilteredEventHandler
        |
        +--edu.umd.cs.jazz.event.ZSelectionDeleteHandler

All Implemented Interfaces:

ZEventHandler

public class ZSelectionDeleteHandler

extends ZFilteredEventHandler

ZSelectionDeleteHandler is a selection handler for use with a ZSelectionManager. ZSelectionDeleteHandler allows the user to delete the current selection by pressing the DEL key.

ZSelectionDeleteHandler also allows registration of ZGroupListener instances to be notified when items are deleted.

Author:

Antony Courtney, Yale University

, Lance Good, Univesity of Maryland , Benjamin Bederson, University of Maryland , Jesse Grosjean, University of Maryland

See Also:

ZSelectionManager, ZCompositeSelectionHandler

Nested Class Summary

Nested classes inherited from class edu.umd.cs.jazz.event.ZFilteredEventHandler

ZFilteredEventHandler.ZFilteredEventDispatcher

Field Summary

Fields inherited from class edu.umd.cs.jazz.event.ZFilteredEventHandler

fFilteredEventDispatcher, fMouseFilter

Constructor Summary

ZSelectionDeleteHandler(ZCanvas aFilteredKeyEventSouce)
Constructs a new ZSelectionDeleteHandler.

ZSelectionDeleteHandler(ZNode aIgnoredNode, ZCamera aIgnoredCamera, ZCanvas aFilteredKeyEventSouce)
Deprecated. As of Jazz version 1.2, use ZSelectionDeleteHandler(ZSceneGraphObject aEventSource) instead.

ZSelectionDeleteHandler(ZNode aIgnoredNode, ZCanvas aFilteredKeyEventSouce)
Deprecated. As of Jazz version 1.2, use ZSelectionDeleteHandler(ZSceneGraphObject aEventSource) instead.

Method Summary

void	addGroupListener(ZGroupListener l) Add a ZGroupListener, registered for nodeRemoved events.
protected void	deleteSelection() Delete the current selection and fire ZGroupEvent.NODE_REMOVED events to each registered group listener.
void	filteredKeyPressed(java.awt.event.KeyEvent e) Invoked when a key is pressed on the key event souce and the event filter accepts the event.
protected void	fireEvent(ZEvent aEvent) Notifies all listeners that have registered interest for notification on this event type.
void	removeGroupListener(ZGroupListener l) Remove a ZGroupListener, registered for nodeRemoved events.

Methods inherited from class edu.umd.cs.jazz.event.ZFilteredEventHandler

filteredKeyReleased, filteredKeyTyped, filteredMouseClicked, filteredMouseDragged, filteredMouseEntered, filteredMouseExited, filteredMouseMoved, filteredMousePressed, filteredMouseReleased, getCurrentFilteredMouseEvent, getCurrentSelection, getFilteredEventDispatcher, getFilteredKeyEventSource, getFilteredMouseEventSource, getInteractionCamera, getMouseFilter, getTopCamera, isActive, setActive, setFilteredKeyEventSource, setFilteredMouseEventSource, setMouseFilter, wantsKeyEvents, wantsMouseEvents, wantsMouseMotionEvents

Methods inherited from class java.lang.Object

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

Constructor Detail

ZSelectionDeleteHandler

public ZSelectionDeleteHandler(ZCanvas aFilteredKeyEventSouce)

Constructs a new ZSelectionDeleteHandler.

Parameters:

aFilteredKeyEventSouce - the source for filtered KeyEvents. See the ZFilteredEventHandler class comment to customize this behavior.

ZSelectionDeleteHandler

public ZSelectionDeleteHandler(ZNode aIgnoredNode,
                               ZCanvas aFilteredKeyEventSouce)

Deprecated. As of Jazz version 1.2, use ZSelectionDeleteHandler(ZSceneGraphObject aEventSource) instead.

ZSelectionDeleteHandler

public ZSelectionDeleteHandler(ZNode aIgnoredNode,
                               ZCamera aIgnoredCamera,
                               ZCanvas aFilteredKeyEventSouce)

Deprecated. As of Jazz version 1.2, use ZSelectionDeleteHandler(ZSceneGraphObject aEventSource) instead.

Method Detail

filteredKeyPressed

public void filteredKeyPressed(java.awt.event.KeyEvent e)

Invoked when a key is pressed on the key event souce and the event filter accepts the event.

Overrides:

filteredKeyPressed in class ZFilteredEventHandler

Parameters:

e - the filtered key pressed event accepted by the event filter.

deleteSelection

protected void deleteSelection()

Delete the current selection and fire ZGroupEvent.NODE_REMOVED events to each registered group listener.

addGroupListener

public void addGroupListener(ZGroupListener l)

Add a ZGroupListener, registered for nodeRemoved events.

removeGroupListener

public void removeGroupListener(ZGroupListener l)

Remove a ZGroupListener, registered for nodeRemoved events.

fireEvent

protected void fireEvent(ZEvent aEvent)

Notifies all listeners that have registered interest for notification on this event type.

See Also:

EventListenerList