com.sun.jna.platform.dnd

Class GhostedDragImage

java.lang.Object

com.sun.jna.platform.dnd.GhostedDragImage

public class GhostedDragImage
extends java.lang.Object

Provide a ghosted drag image for use during drags where DragSource.isDragImageSupported() returns false.

Its location in screen coordinates may be changed via move(java.awt.Point).

When the image is no longer needed, invoke dispose(), which hides the graphic immediately, or returnToOrigin(), which moves the image to its original location and then disposes it.

Constructor Summary

Constructors

Constructor and Description
GhostedDragImage(java.awt.Component dragSource, javax.swing.Icon icon, java.awt.Point initialScreenLoc, java.awt.Point cursorOffset) Create a ghosted drag image, using the given icon.

Method Summary

Modifier and Type	Method and Description
void	dispose() Make all ghosted images go away.
void	move(java.awt.Point screenLocation) Move the ghosted image to the requested location.
void	returnToOrigin() Animate the ghosted image returning to its origin.
void	setAlpha(float alpha) Set the transparency of the ghosted image.

Methods inherited from class java.lang.Object

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

Constructor Detail

GhostedDragImage

public GhostedDragImage(java.awt.Component dragSource,
                        javax.swing.Icon icon,
                        java.awt.Point initialScreenLoc,
                        java.awt.Point cursorOffset)

Create a ghosted drag image, using the given icon.

Parameters:

dragSource - source of the drag

icon - image to be drawn

initialScreenLoc - initial screen location of the image

cursorOffset - offset of the cursor from the image origin

Method Detail

setAlpha

public void setAlpha(float alpha)

Set the transparency of the ghosted image.

Parameters:

alpha - transparency level

dispose

public void dispose()

Make all ghosted images go away.

move

public void move(java.awt.Point screenLocation)

Move the ghosted image to the requested location.

Parameters:

screenLocation - Where to draw the image, in screen coordinates

returnToOrigin

public void returnToOrigin()

Animate the ghosted image returning to its origin.