Track bounds changes for our underlying sprite in such a way that we dirty

things properly if they do. Simply stealing our target sprite's _bounds will
not result in the necessary calls to addDirtyRegion() if they change due to
calls to setLocation() on our (now unmanaged) target sprite.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@89 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/media/animation/GleamAnimation.java

@@ -8,6 +8,7 @@ import java.awt.Color;
 import java.awt.Composite;
 import java.awt.Graphics2D;
 import java.awt.Image;
+import java.awt.Rectangle;
 import java.awt.Transparency;
 
 import com.threerings.media.sprite.Sprite;
@@ -35,7 +36,7 @@ public class GleamAnimation extends Animation
     public GleamAnimation (SpriteManager spmgr, Sprite sprite, Color color,
                            int upmillis, int downmillis, boolean fadeIn)
     {
-        super(sprite.getBounds());
+        super(new Rectangle(sprite.getBounds()));
         _spmgr = spmgr;
         _sprite = sprite;
         _color = color;
@@ -62,6 +63,14 @@ public class GleamAnimation extends Animation
             return;
         }
 
+        // if the sprite is moved or changed size while we're gleaming it,
+        // track those changes
+        if (!_bounds.equals(_sprite.getBounds())) {
+            Rectangle obounds = new Rectangle(_bounds);
+            _bounds.setBounds(_sprite.getBounds());
+            invalidateAfterChange(obounds);
+        }
+
         if (_alpha != alpha) {
             _alpha = alpha;
             invalidate();