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DragSourceDropEvent (Java 2 Platform SE v1.4.1) - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

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java.awt.dnd
Class DragSourceDropEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--java.awt.dnd.DragSourceEvent
              |
              +--java.awt.dnd.DragSourceDropEvent

All Implemented Interfaces:

Serializable

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public class DragSourceDropEvent

extends DragSourceEvent

The DragSourceDropEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the dragDropEnd method of DragSourceListeners registered with that DragSourceContext and with its associated DragSource. It contains sufficient information for the originator of the operation to provide appropriate feedback to the end user when the operation completes.

Since:

1.2

See Also:

Serialized Form

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Field Summary

 

Fields inherited from class java.util.EventObject

source

 

Constructor Summary

DragSourceDropEvent(DragSourceContext dsc)           Construct a DragSourceDropEvent for a drag that does not result in a drop.

DragSourceDropEvent(DragSourceContext dsc, int action, boolean success)           Construct a DragSourceDropEvent for a drop, given the DragSourceContext, the drop action, and a boolean indicating if the drop was successful.

DragSourceDropEvent(DragSourceContext dsc, int action, boolean success, int x, int y)           Construct a DragSourceDropEvent for a drop, given the DragSourceContext, the drop action, a boolean indicating if the drop was successful, and coordinates.

 

Method Summary
int	getDropAction()           This method returns an int representing the action performed by the target on the subject of the drop.
boolean	getDropSuccess()           This method returns a boolean indicating if the drop was successful.

 

Methods inherited from class java.awt.dnd.DragSourceEvent

getDragSourceContext, getLocation, getX, getY

 

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

 

Constructor Detail

DragSourceDropEvent

public DragSourceDropEvent(DragSourceContext dsc,
                           int action,
                           boolean success)

Construct a DragSourceDropEvent for a drop, given the DragSourceContext, the drop action, and a boolean indicating if the drop was successful. The coordinates for this DragSourceDropEvent are not specified, so getLocation will return null for this event.

Parameters:

dsc - the DragSourceContext associated with this DragSourceDropEvent

action - the drop action

success - a boolean indicating if the drop was successful

See Also:

DragSourceEvent.getLocation()

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DragSourceDropEvent

public DragSourceDropEvent(DragSourceContext dsc,
                           int action,
                           boolean success,
                           int x,
                           int y)

Construct a DragSourceDropEvent for a drop, given the DragSourceContext, the drop action, a boolean indicating if the drop was successful, and coordinates.

Parameters:

dsc - the DragSourceContext associated with this DragSourceDropEvent

action - the drop action

success - a boolean indicating if the drop was successful

x - the horizontal coordinate for the cursor location

y - the vertical coordinate for the cursor location

Since:

1.4

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DragSourceDropEvent

public DragSourceDropEvent(DragSourceContext dsc)

Construct a DragSourceDropEvent for a drag that does not result in a drop. The coordinates for this DragSourceDropEvent are not specified, so getLocation will return null for this event.

Parameters:

dsc - the DragSourceContext

See Also:

DragSourceEvent.getLocation()

Method Detail

getDropSuccess

public boolean getDropSuccess()

This method returns a boolean indicating if the drop was successful.

Returns:

true if the drop target accepted the drop and successfully performed a drop action; false if the drop target rejected the drop or if the drop target accepted the drop, but failed to perform a drop action.

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getDropAction

public int getDropAction()

This method returns an int representing the action performed by the target on the subject of the drop.

Returns:

the action performed by the target on the subject of the drop if the drop target accepted the drop and the target drop action is supported by the drag source; otherwise, DnDConstants.ACTION_NONE.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.