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Eclipse Platform
Release 3.5

Class DragSourceEffect

  extended by 

      extended by 
All Implemented Interfaces:
EventListener, DragSourceListener, org.eclipse.swt.internal.SWTEventListener
Direct Known Subclasses:
TableDragSourceEffect, TreeDragSourceEffect

public class DragSourceEffect
extends DragSourceAdapter

This class provides default implementations to display a drag source effect during a drag and drop operation. The current implementation does not provide any visual feedback.

The drag source effect has the same API as the DragSourceAdapter so that it can provide custom visual feedback when a DragSourceEvent occurs.

Classes that wish to provide their own drag source effect such as displaying a default source image during a drag can extend the DragSourceEffect class, override the DragSourceAdapter.dragStart method and set the field DragSourceEvent.image with their own image. The image should be disposed when DragSourceAdapter.dragFinished is called.

See Also:
DragSourceAdapter, DragSourceEvent, Sample code and further information

Constructor Summary
DragSourceEffect ( Control control)
          Creates a new DragSourceEffect to handle drag effect from the specified Control.
Method Summary
  Control getControl ()
          Returns the Control which is registered for this DragSourceEffect.
Methods inherited from class org.eclipse.swt.dnd. DragSourceAdapter
dragFinished, dragSetData, dragStart
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public DragSourceEffect(
Control control)
Creates a new DragSourceEffect to handle drag effect from the specified Control.

control - the Control that the user clicks on to initiate the drag
IllegalArgumentException -
  • ERROR_NULL_ARGUMENT - if the control is null
Method Detail


Control getControl()
Returns the Control which is registered for this DragSourceEffect. This is the control that the user clicks in to initiate dragging.

the Control which is registered for this DragSourceEffect

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.

  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire