com.tensegrity.gui.swing.dnd
Class FileDropListener

java.lang.Object
  com.tensegrity.gui.swing.dnd.AbstractFileDropListener
      com.tensegrity.gui.swing.dnd.FileDropListener

All Implemented Interfaces:

java.awt.dnd.DropTargetListener, java.util.EventListener

public class FileDropListener

extends AbstractFileDropListener

This drop listener opens files in the graphframe. This class can be used stand alone in a component.

Version:

$Id: FileDropListener.java,v 1.7 2004/05/06 07:30:27 MichaelKegel Exp $

Author:

Stepan Rutz

Constructor Summary

FileDropListener(DocumentDropContext opener)
Constructs a new Filedrop listener instance.

Method Summary

void	dragOver(java.awt.dnd.DropTargetDragEvent dtde) Accepts the drag if the flavor is supported.
boolean	dragOverInternal(java.awt.dnd.DropTargetDragEvent dtde) To be overridden by a derived class.
void	drop(java.awt.dnd.DropTargetDropEvent dtde) If the drop is accepted, the Transferable will be extracted from the event instance and set properly.
boolean	dropInternal(java.awt.dnd.DropTargetDropEvent dtde) To be overridden by a derived class.

Methods inherited from class com.tensegrity.gui.swing.dnd.AbstractFileDropListener

dragEnter, dragExit, dropActionChanged, isDragAcceptedForEvent, isDropAcceptedForEvent

Methods inherited from class java.lang.Object

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

Constructor Detail

FileDropListener

public FileDropListener(DocumentDropContext opener)

Constructs a new Filedrop listener instance.

Parameters:

opener - a class that can open files.

Method Detail

dragOverInternal

public boolean dragOverInternal(java.awt.dnd.DropTargetDragEvent dtde)

Description copied from class: AbstractFileDropListener

To be overridden by a derived class. Then this method should be invoked as the first thing in the dragOver handler by the derived class. Only if false is returned the derived class is allowed to do further processing, otherwise the derived class must return straight from its dragOver.

Specified by:

dragOverInternal in class AbstractFileDropListener

Parameters:

dtde - the dnd even that occured.

Returns:

true if the drag over was absorbed. If false is returned the derived class may still handle the dragOver.

dragOver

public void dragOver(java.awt.dnd.DropTargetDragEvent dtde)

Description copied from class: AbstractFileDropListener

Accepts the drag if the flavor is supported.

Specified by:

dragOver in interface java.awt.dnd.DropTargetListener

Specified by:

dragOver in class AbstractFileDropListener

dropInternal

public boolean dropInternal(java.awt.dnd.DropTargetDropEvent dtde)

Description copied from class: AbstractFileDropListener

To be overridden by a derived class. Then this method should be invoked as the first thing in the drop handler by the derived class. Only if false is returned the derived class is allowed to do further processing, otherwise the derived class must return straight from its drop.

Specified by:

dropInternal in class AbstractFileDropListener

Parameters:

dtde - the dnd even that occured.

Returns:

true if the drag over was absorbed. If false is returned the derived class may still handle the drop.

drop

public void drop(java.awt.dnd.DropTargetDropEvent dtde)

Description copied from class: AbstractFileDropListener

If the drop is accepted, the Transferable will be extracted from the event instance and set properly.

Specified by:

drop in interface java.awt.dnd.DropTargetListener

Specified by:

drop in class AbstractFileDropListener