An interface for objects that wish to be informed when tiles of a WritableRenderedImage become modifiable by some writer via a call to getWritableTile, and when they become unmodifiable via the last call to releaseWritableTile.
@author
Thomas DeWeese
@author
Daniel Rice
See Also
WritableRenderedImage
A tile is about to be updated (it is either about to be grabbed for writing, or it is being released from writing).
Parameters
sourcethe image that owns the tile.
tileXthe X index of the tile that is being updated.
tileYthe Y index of the tile that is being updated.
willBeWritableIf true, the tile will be grabbed for writing; otherwise it is being released.