java.lang.Object java.util.EventObject java.awt.dnd.DropTargetEvent java.awt.dnd.DropTargetDragEvent
The DropTargetDragEvent is delivered to a DropTargetListener via its dragEnter() and dragOver() methods.
The DropTargetDragEvent reports the source drop actions and the user drop action that reflect the current state of the drag operation.
Source drop actions is a bitwise mask of DnDConstants that represents the set of drop actions supported by the drag source for this drag operation.
User drop action depends on the drop actions supported by the drag source and the drop action selected by the user. The user can select a drop action by pressing modifier keys during the drag operation:
Ctrl + Shift -> ACTION_LINK Ctrl -> ACTION_COPY Shift -> ACTION_MOVEIf the user selects a drop action, the user drop action is one of DnDConstants that represents the selected drop action if this drop action is supported by the drag source or DnDConstants.ACTION_NONE if this drop action is not supported by the drag source.
If the user doesn't select a drop action, the set of DnDConstants that represents the set of drop actions supported by the drag source is searched for DnDConstants.ACTION_MOVE, then for DnDConstants.ACTION_COPY, then for DnDConstants.ACTION_LINK and the user drop action is the first constant found. If no constant is found the user drop action is DnDConstants.ACTION_NONE.
Field Summary |
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Fields inherited from class java.awt.dnd. DropTargetEvent |
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context |
Fields inherited from class java.util. EventObject |
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source |
Constructor Summary | |
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DropTargetDragEvent
(
DropTargetContext
dtc,
Point
cursorLocn, int dropAction, int srcActions) Construct a DropTargetDragEvent given the DropTargetContext for this operation, the location of the "Drag" Cursor's hotspot in the Component's coordinates, the user drop action, and the source drop actions. |
Method Summary | |
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void |
acceptDrag
(int dragOperation) Accepts the drag. |
DataFlavor [] |
getCurrentDataFlavors
() This method returns the current DataFlavors from the DropTargetContext. |
List |
getCurrentDataFlavorsAsList
() This method returns the current DataFlavors as a java.util.List |
int |
getDropAction
() This method returns the user drop action. |
Point |
getLocation
() This method returns a Point indicating the Cursor's current location within the Component's coordinates. |
int |
getSourceActions
() This method returns the source drop actions. |
Transferable |
getTransferable
()
This method returns the Transferable object that represents the data associated with the current drag operation. |
boolean |
isDataFlavorSupported
(
DataFlavor
df) This method returns a boolean indicating if the specified DataFlavor is supported. |
void |
rejectDrag
() Rejects the drag as a result of examining either the dropAction or the available DataFlavor types. |
Methods inherited from class java.awt.dnd. DropTargetEvent |
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getDropTargetContext |
Methods inherited from class java.util. EventObject |
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getSource , toString |
Methods inherited from class java.lang. Object |
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clone , equals , finalize , getClass , hashCode , notify , notifyAll , wait , wait , wait |
Constructor Detail |
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public DropTargetDragEvent(DropTargetContext dtc, Point cursorLocn, int dropAction, int srcActions)
Method Detail |
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public Point getLocation()
public DataFlavor[] getCurrentDataFlavors()
public List getCurrentDataFlavorsAsList()
public boolean isDataFlavorSupported(DataFlavor df)
public int getSourceActions()
public int getDropAction()
public TransferablegetTransferable ()
public void acceptDrag(int dragOperation)
public void rejectDrag()