GhostedDragImage (JNA API)

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JNA API 4.0.0

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com.sun.jna.platform.dnd
Class GhostedDragImage

java.lang.Object
  com.sun.jna.platform.dnd.GhostedDragImage

public class GhostedDragImage
extends Object
extends 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
`GhostedDragImage(Component dragSource, Icon icon, Point initialScreenLoc, Point cursorOffset)` Create a ghosted drag image, using the given icon.

Method Summary
`void`	`dispose()` Make all ghosted images go away.
`void`	`move(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(Component dragSource,
                        Icon icon,
                        Point initialScreenLoc,
                        Point cursorOffset)

Create a ghosted drag image, using the given icon.

Parameters:: icon - image to be drawn; initialScreenLoc - initial screen location of the image

Method Detail

setAlpha

public void setAlpha(float alpha)

Set the transparency of the ghosted image.

dispose

public void dispose()

Make all ghosted images go away.

move

public void move(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.