Package de.sciss.gui

Class PathEvent

java.lang.Object

java.util.EventObject

de.sciss.app.BasicEvent

de.sciss.gui.PathEvent

All Implemented Interfaces:

java.io.Serializable

public class PathEvent
extends BasicEvent

This kind of event is fired from a PathField or PathButton gadget when the user modified the path.

See Also:

PathField.addPathListener( PathListener ), PathListener, File, Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static int	CHANGED	returned by getID() : the path changed

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
PathEvent(java.lang.Object source, int ID, long when, java.io.File path)	Constructs a new PathEvent

Method Summary

Modifier and Type	Method	Description
java.io.File	getPath()	Queries the new path
boolean	incorporate(BasicEvent oldEvent)	Asks the event to incorporate the action described by another (older) event.

Methods inherited from class de.sciss.app.BasicEvent

getID, getWhen

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

CHANGED

public static final int CHANGED

returned by getID() : the path changed

See Also:

Constant Field Values

Constructor Detail

PathEvent

public PathEvent(java.lang.Object source,
                 int ID,
                 long when,
                 java.io.File path)

Constructs a new PathEvent

Parameters:

source - who originated the action

ID - CHANGED

when - system time when the event occured

path - the new path

Method Detail

getPath

public java.io.File getPath()

Queries the new path

Returns:

the new path of the PathField or PathButton.

incorporate

public boolean incorporate(BasicEvent oldEvent)

Description copied from class: BasicEvent

Asks the event to incorporate the action described by another (older) event. This method has been created to reduce overhead; when many events are added to the event queue of an ELM, this allows to fuse two adjectant events. The idea is mainly based on the replaceEdit() method of the javax.swing.undo.UndoableEdit interface; a pendant of a symmetric addEdit() like method is not provided because it seems to be unnecessary.

Implementation notes : the oldEvent should generally only be incorporated if it refers to the same source object (getSource()) and has the same ID (getD()). the timestamp of the current event should not be modified.

Specified by:

incorporate in class BasicEvent

Parameters:

oldEvent - the most recent event in the queue which might be incorporated by this new event.

Returns:

true if this object was able to incorporate the older event. in this case the oldEvent is removed from the event queue. false states that the oldEvent was incompatible and should remain in the queue.

See Also:

UndoableEdit.replaceEdit( UndoableEdit )