Package docking.dnd

Interface DragDropManager

public interface DragDropManager

Interface used by the DragDropTree to know how to handle the drag and drop operations.

Method Summary

Modifier and Type	Method	Description
void	add(DragDropNode destNode, Object data, DataFlavor chosen, int dropAction)	Add the given data to the destination node.
DataFlavor[]	getAcceptableFlavors()	Return the data flavors that can be dragged and dropped.
Transferable	getTransferable(Point p)	Get the transferable at the given point.
boolean	isDropSiteOk(DragDropNode destNode, DropTargetDragEvent e)	Return true if the drop site is valid for the given target and drag event.
boolean	isStartDragOk(DragDropNode dragNode, int dragAction)	Return true if the dragNode can be dragged.
void	move(DragDropNode[] sourceNodes)	Remove the given sourceNodes.

Method Details

isStartDragOk

boolean isStartDragOk(DragDropNode dragNode,
 int dragAction)

Return true if the dragNode can be dragged.

Parameters:

dragNode - node where user is initiating the drag operation

dragAction - user action for the drag operation

isDropSiteOk

boolean isDropSiteOk(DragDropNode destNode,
 DropTargetDragEvent e)

Return true if the drop site is valid for the given target and drag event.

Parameters:

destNode - destination for node being dragged

e - the drag event

add

void add(DragDropNode destNode,
 Object data,
 DataFlavor chosen,
 int dropAction)

Add the given data to the destination node.

Parameters:

destNode - destination node for the data.

data - data to add

chosen - data flavor for the data being added

dropAction - user action for drop operation

move

void move(DragDropNode[] sourceNodes)

Remove the given sourceNodes. (It got moved, so remove it at the source)

Parameters:

sourceNodes - nodes to remove.

getAcceptableFlavors

DataFlavor[] getAcceptableFlavors()

Return the data flavors that can be dragged and dropped.

getTransferable

Transferable getTransferable(Point p)

Get the transferable at the given point.

Parameters:

p - point where the mouse pointer is when the drag begins