java.awt.dnd

Class DropTarget

java.lang.Object

java.awt.dnd.DropTarget

All Implemented Interfaces:

DropTargetListener, Serializable, EventListener

public class DropTarget
extends Object
implements DropTargetListener, EventListener, Serializable

Since:

1.2

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DropTarget.DropTargetAutoScroller

Constructor Summary

Constructors

Constructor and Description
DropTarget() Creates a DropTarget object.
DropTarget(Component c, DropTargetListener dtl) Creates a DropTarget object.
DropTarget(Component c, int i, DropTargetListener dtl) Creates a DropTarget object.
DropTarget(Component c, int i, DropTargetListener dtl, boolean b) Creates a DropTarget object.
DropTarget(Component c, int i, DropTargetListener dtl, boolean b, FlavorMap fm) Creates a DropTarget object.

Method Summary

Methods

Modifier and Type	Method and Description
void	addDropTargetListener(DropTargetListener dtl) Adds a new DropTargetListener.
void	addNotify(ComponentPeer p)
protected void	clearAutoscroll()
protected DropTarget.DropTargetAutoScroller	createDropTargetAutoScroller(Component c, Point p)
protected DropTargetContext	createDropTargetContext()
void	dragEnter(DropTargetDragEvent dtde) Called when the cursor hotspot enters a drop site which will accept the drag.
void	dragExit(DropTargetEvent dte) Called when the cursor hotspot moves outside of a drop site which will accept the drag.
void	dragOver(DropTargetDragEvent dtde) Called when the cursor hotspot moves inside of a drop site which will accept the drag.
void	drop(DropTargetDropEvent dtde) Called when the drag operation has terminated with a drop.
void	dropActionChanged(DropTargetDragEvent dtde) Called when the user modifies the drop gesture.
Component	getComponent() Returns the component associated with this drop target object.
int	getDefaultActions() Returns the default actions.
DropTargetContext	getDropTargetContext()
FlavorMap	getFlavorMap()
protected void	initializeAutoscrolling(Point p)
boolean	isActive()
void	removeDropTargetListener(DropTargetListener dtl)
void	removeNotify(ComponentPeer p)
void	setActive(boolean active)
void	setComponent(Component c) Sets the component associated with this drop target object.
void	setDefaultActions(int ops) Sets the default actions.
void	setFlavorMap(FlavorMap fm)
protected void	updateAutoscroll(Point dragCursorLocn)

Methods inherited from class java.lang.Object

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

Constructor Detail

DropTarget

public DropTarget()

Creates a DropTarget object.

Throws:

HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

DropTarget

public DropTarget(Component c,
          DropTargetListener dtl)

Creates a DropTarget object.

Throws:

HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

DropTarget

public DropTarget(Component c,
          int i,
          DropTargetListener dtl)

Creates a DropTarget object.

Throws:

HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

DropTarget

public DropTarget(Component c,
          int i,
          DropTargetListener dtl,
          boolean b)

Creates a DropTarget object.

Throws:

HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

DropTarget

public DropTarget(Component c,
          int i,
          DropTargetListener dtl,
          boolean b,
          FlavorMap fm)

Creates a DropTarget object.

Throws:

HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

Method Detail

setComponent

public void setComponent(Component c)

Sets the component associated with this drop target object.

getComponent

public Component getComponent()

Returns the component associated with this drop target object.

setDefaultActions

public void setDefaultActions(int ops)

Sets the default actions.

getDefaultActions

public int getDefaultActions()

Returns the default actions.

setActive

public void setActive(boolean active)

isActive

public boolean isActive()

addDropTargetListener

public void addDropTargetListener(DropTargetListener dtl)
                           throws TooManyListenersException

Adds a new DropTargetListener.

Throws:

TooManyListenersException - Sun's JDK does not, despite documentation, throw this exception here when you install an additional DropTargetListener. So to be compatible, we do the same thing.

removeDropTargetListener

public void removeDropTargetListener(DropTargetListener dtl)

dragEnter

public void dragEnter(DropTargetDragEvent dtde)

Description copied from interface: DropTargetListener

Called when the cursor hotspot enters a drop site which will accept the drag.

Specified by:

dragEnter in interface DropTargetListener

Parameters:

dtde - the drag source drag event

dragOver

public void dragOver(DropTargetDragEvent dtde)

Description copied from interface: DropTargetListener

Called when the cursor hotspot moves inside of a drop site which will accept the drag.

Specified by:

dragOver in interface DropTargetListener

Parameters:

dtde - the drag source drag event

dropActionChanged

public void dropActionChanged(DropTargetDragEvent dtde)

Description copied from interface: DropTargetListener

Called when the user modifies the drop gesture. This is often the case when additional mouse or key events are received during the drag.

Specified by:

dropActionChanged in interface DropTargetListener

Parameters:

dtde - the drag source drag event

dragExit

public void dragExit(DropTargetEvent dte)

Description copied from interface: DropTargetListener

Called when the cursor hotspot moves outside of a drop site which will accept the drag. This could also happen if the drop site is no longer active, or no longer accepts the drag.

Specified by:

dragExit in interface DropTargetListener

Parameters:

dte - the drag source drag event

drop

public void drop(DropTargetDropEvent dtde)

Description copied from interface: DropTargetListener

Called when the drag operation has terminated with a drop.

Specified by:

drop in interface DropTargetListener

Parameters:

dtde - the drag source drag event

getFlavorMap

public FlavorMap getFlavorMap()

setFlavorMap

public void setFlavorMap(FlavorMap fm)

addNotify

public void addNotify(ComponentPeer p)

removeNotify

public void removeNotify(ComponentPeer p)

getDropTargetContext

public DropTargetContext getDropTargetContext()

createDropTargetContext

protected DropTargetContext createDropTargetContext()

createDropTargetAutoScroller

protected DropTarget.DropTargetAutoScroller createDropTargetAutoScroller(Component c,
                                                             Point p)

initializeAutoscrolling

protected void initializeAutoscrolling(Point p)

updateAutoscroll

protected void updateAutoscroll(Point dragCursorLocn)

clearAutoscroll

protected void clearAutoscroll()