java.awt.dnd

Class DropTarget

Implemented Interfaces:
DropTargetListener, EventListener, Serializable

public class DropTarget
extends Object
implements DropTargetListener, EventListener, Serializable

Since:
1.2
See Also:
Serialized Form

Nested Class Summary

protected static class
DropTarget.DropTargetAutoScroller

Constructor Summary

DropTarget()
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.
DropTarget(Component c, DropTargetListener dtl)
Creates a DropTarget object.

Method Summary

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, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DropTarget

public DropTarget()
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.

DropTarget

public DropTarget(Component c,
                  DropTargetListener dtl)
Creates a DropTarget object.
Throws:
HeadlessException - If GraphicsEnvironment.isHeadless() returns true.

Method Details

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.

addNotify

public void addNotify(ComponentPeer p)

clearAutoscroll

protected void clearAutoscroll()

createDropTargetAutoScroller

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

createDropTargetContext

protected DropTargetContext createDropTargetContext()

dragEnter

public void dragEnter(DropTargetDragEvent dtde)
Called when the cursor hotspot enters a drop site which will accept the drag.
Specified by:
dragEnter in interface DropTargetListener
Parameters:

dragExit

public void dragExit(DropTargetEvent dte)
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:

dragOver

public void dragOver(DropTargetDragEvent dtde)
Called when the cursor hotspot moves inside of a drop site which will accept the drag.
Specified by:
dragOver in interface DropTargetListener
Parameters:

drop

public void drop(DropTargetDropEvent dtde)
Called when the drag operation has terminated with a drop.
Specified by:
drop in interface DropTargetListener
Parameters:

dropActionChanged

public void dropActionChanged(DropTargetDragEvent dtde)
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:

getComponent

public Component getComponent()
Returns the component associated with this drop target object.

getDefaultActions

public int getDefaultActions()
Returns the default actions.

getDropTargetContext

public DropTargetContext getDropTargetContext()

getFlavorMap

public FlavorMap getFlavorMap()

initializeAutoscrolling

protected void initializeAutoscrolling(Point p)

isActive

public boolean isActive()

removeDropTargetListener

public void removeDropTargetListener(DropTargetListener dtl)

removeNotify

public void removeNotify(ComponentPeer p)

setActive

public void setActive(boolean active)

setComponent

public void setComponent(Component c)
Sets the component associated with this drop target object.

setDefaultActions

public void setDefaultActions(int ops)
Sets the default actions.

setFlavorMap

public void setFlavorMap(FlavorMap fm)

updateAutoscroll

protected void updateAutoscroll(Point dragCursorLocn)

DropTarget.java -- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.