Serializable
public final class DropTargetContext extends Object implements Serializable
DropTargetContext
is created whenever the logical cursor associated with a Drag and Drop operation coincides with the visible geometry of a Component
associated with a DropTarget
. The DropTargetContext
provides the mechanism for a potential receiver of a drop operation to both provide the end user with the appropriate drag under feedback, but also to effect the subsequent data transfer if appropriate.Modifier and Type | Class | Description |
---|---|---|
protected class |
DropTargetContext.TransferableProxy |
TransferableProxy is a helper inner class that implements Transferable interface and serves as a proxy for another Transferable object which represents data transfer for a particular drag-n-drop operation. |
Modifier and Type | Method | Description |
---|---|---|
protected void |
acceptDrag |
accept the Drag. |
protected void |
acceptDrop |
called to signal that the drop is acceptable using the specified operation. |
protected Transferable |
createTransferableProxy |
Creates a TransferableProxy to proxy for the specified Transferable. |
void |
dropComplete |
This method signals that the drop is completed and if it was successful or not. |
Component |
getComponent() |
This method returns the Component associated with this DropTargetContext . |
protected DataFlavor[] |
getCurrentDataFlavors() |
get the available DataFlavors of the Transferable operand of this operation. |
protected List |
getCurrentDataFlavorsAsList() |
This method returns the currently available DataFlavors of the Transferable operand as a java.util.List . |
DropTarget |
getDropTarget() |
This method returns the DropTarget associated with this DropTargetContext . |
protected int |
getTargetActions() |
This method returns an int representing the current actions this DropTarget will accept. |
protected Transferable |
getTransferable() |
get the Transferable (proxy) operand of this operation |
protected boolean |
isDataFlavorSupported |
This method returns a boolean indicating if the given DataFlavor is supported by this DropTargetContext . |
protected void |
rejectDrag() |
reject the Drag. |
protected void |
rejectDrop() |
called to signal that the drop is unacceptable. |
protected void |
setTargetActions |
This method sets the current actions acceptable to this DropTarget . |
public DropTarget getDropTarget()
DropTarget
associated with this DropTargetContext
.DropTarget
associated with this DropTargetContext
public Component getComponent()
Component
associated with this DropTargetContext
.protected void setTargetActions(int actions)
DropTarget
.actions
- an int
representing the supported action(s)protected int getTargetActions()
int
representing the current actions this DropTarget
will accept.DropTarget
public void dropComplete(boolean success) throws InvalidDnDOperationException
success
- true for success, false if notInvalidDnDOperationException
- if a drop is not outstanding/extantprotected void acceptDrag(int dragOperation)
dragOperation
- the supported action(s)protected void rejectDrag()
protected void acceptDrop(int dropOperation)
dropOperation
- the supported action(s)protected void rejectDrop()
protected DataFlavor[] getCurrentDataFlavors()
Transferable
operand of this operation.DataFlavor[]
containing the supported DataFlavor
s of the Transferable
operand.protected List<DataFlavor> getCurrentDataFlavorsAsList()
Transferable
operand as a java.util.List
.java.util.List
protected boolean isDataFlavorSupported(DataFlavor df)
boolean
indicating if the given DataFlavor
is supported by this DropTargetContext
.df
- the DataFlavor
DataFlavor
specified is supportedprotected Transferable getTransferable() throws InvalidDnDOperationException
Transferable
InvalidDnDOperationException
- if a drag is not outstanding/extantprotected Transferable createTransferableProxy(Transferable t, boolean local)
t
- the Transferable
to be proxiedlocal
- true
if t
represents the result of a local drag-n-drop operation.TransferableProxy
instance.
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/java/awt/dnd/DropTargetContext.html