net.lucidviews.util.gui.swing.dnd
Class DefaultSwingDropTarget

java.lang.Object
  java.awt.dnd.DropTarget
      net.lucidviews.util.gui.swing.dnd.DefaultDropTarget
          net.lucidviews.util.gui.swing.dnd.DefaultSwingDropTarget

All Implemented Interfaces:

DropTargetListener, Serializable, EventListener

Direct Known Subclasses:

JWebAddress.WebAddressDropTarget

public class DefaultSwingDropTarget
extends DefaultDropTarget

An extension of the DropTarget class for Swing components that invokes state changes on the drag'n'drop event.

This class must be sub-classed and the drag/drop methods overridden with custom implementations. NB: overridden methods must call the super method to invoke the state change on the event.

Since:

1.3

Version:

$Revision: 1.1.2.1 $

Author:

Stephen Battey

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.dnd.DropTarget

DropTarget.DropTargetAutoScroller

Field Summary

private static long	serialVersionUID Serialisation version id.
protected JComponent	target The component that is the target of dropped content.

Fields inherited from class net.lucidviews.util.gui.swing.dnd.DefaultDropTarget

canImport, supportedActions

Constructor Summary

protected

DefaultSwingDropTarget(JComponent component, int supportedActions) Create a drop target for the specified Swing component.

Method Summary

protected boolean

dataFlavourSupported(Component component, DataFlavor[] flavours) Check if a data type is accepted by this drop target.

Methods inherited from class net.lucidviews.util.gui.swing.dnd.DefaultDropTarget

dragEnter, dragExit, dragOver, drop, dropActionChanged

Methods inherited from class java.awt.dnd.DropTarget

addDropTargetListener, addNotify, clearAutoscroll, createDropTargetAutoScroller, createDropTargetContext, getComponent, getDefaultActions, getDropTargetContext, getFlavorMap, initializeAutoscrolling, isActive, removeDropTargetListener, removeNotify, setActive, setComponent, setDefaultActions, setFlavorMap, updateAutoscroll

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

Serialisation version id.

See Also:

Constant Field Values

target

protected JComponent target

The component that is the target of dropped content.

Constructor Detail

DefaultSwingDropTarget

protected DefaultSwingDropTarget(JComponent component,
                                 int supportedActions)

Create a drop target for the specified Swing component.

Parameters:

component - the GUI component that is to accept DnDs

supportedActions - the actions that will be supported - a bit mask of DnDConstants

Method Detail

dataFlavourSupported

protected boolean dataFlavourSupported(Component component,
                                       DataFlavor[] flavours)

Check if a data type is accepted by this drop target.
By default, all data flavours are supported. This method can be overridden to change that behaviour.

Overrides:

dataFlavourSupported in class DefaultDropTarget

Parameters:

component - the component being targeted

flavours - the data flavour(s) of the incoming drag'n'drop event

Returns:

a Boolean value indicating if the data flavour is accepted by this drop target