|
Préférences
Moteurs de recherche
|
||||||||||||
JavaTM 2 Platform Std. Ed. v1.6.0
java.awt.dnd
|
Method Summary | |
---|---|
void |
dragEnter(DropTargetDragEvent dtde)
Called while a drag operation is ongoing, when the mouse pointer enters the operable part of the drop site for the DropTarget
registered with this listener. |
void |
dragExit(DropTargetEvent dte)
Called while a drag operation is ongoing, when the mouse pointer has exited the operable part of the drop site for the DropTarget registered with this listener. |
void |
dragOver(DropTargetDragEvent dtde)
Called when a drag operation is ongoing, while the mouse pointer is still over the operable part of the drop site for the DropTarget
registered with this listener. |
void |
drop(DropTargetDropEvent dtde)
Called when the drag operation has terminated with a drop on the operable part of the drop site for the DropTarget
registered with this listener. |
void |
dropActionChanged(DropTargetDragEvent dtde)
Called if the user has modified the current drop gesture. |
Method Detail |
---|
void dragEnter(DropTargetDragEvent dtde)
DropTarget
registered with this listener.
dtde
- the DropTargetDragEvent
void dragOver(DropTargetDragEvent dtde)
DropTarget
registered with this listener.
dtde
- the DropTargetDragEvent
void dropActionChanged(DropTargetDragEvent dtde)
dtde
- the DropTargetDragEvent
void dragExit(DropTargetEvent dte)
DropTarget
registered with this listener.
dte
- the DropTargetEvent
void drop(DropTargetDropEvent dtde)
DropTarget
registered with this listener.
This method is responsible for undertaking
the transfer of the data associated with the
gesture. The DropTargetDropEvent
provides a means to obtain a Transferable
object that represents the data object(s) to
be transfered.
From this method, the DropTargetListener
shall accept or reject the drop via the
acceptDrop(int dropAction) or rejectDrop() methods of the
DropTargetDropEvent
parameter.
Subsequent to acceptDrop(), but not before,
DropTargetDropEvent
's getTransferable()
method may be invoked, and data transfer may be
performed via the returned Transferable
's
getTransferData() method.
At the completion of a drop, an implementation
of this method is required to signal the success/failure
of the drop by passing an appropriate
boolean
to the DropTargetDropEvent
's
dropComplete(boolean success) method.
Note: The data transfer should be completed before the call to the
DropTargetDropEvent
's dropComplete(boolean success) method.
After that, a call to the getTransferData() method of the
Transferable
returned by
DropTargetDropEvent.getTransferable()
is guaranteed to
succeed only if the data transfer is local; that is, only if
DropTargetDropEvent.isLocalTransfer()
returns
true
. Otherwise, the behavior of the call is
implementation-dependent.
dtde
- the DropTargetDropEvent