Major revampage to support composited actions that create images that are

exactly big enough to accomodate all of their trimmed components and no
bigger.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1501 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/cast/TrimmedMultiFrameImage.java

@@ -0,0 +1,23 @@
+//
+// $Id: TrimmedMultiFrameImage.java,v 1.1 2002/06/19 23:31:57 mdb Exp $
+
+package com.threerings.cast;
+
+import java.awt.Rectangle;
+
+import com.threerings.media.sprite.MultiFrameImage;
+
+/**
+ * Used to generate more memory efficient composited images in
+ * circumstances where we have trimmed underlying component images.
+ */
+public interface TrimmedMultiFrameImage extends MultiFrameImage
+{
+    /**
+     * Fills in the minimum bounding rectangle for this image that
+     * contains all non-transparent pixels. If this information is
+     * unavailable, the bounds of the entire image may be returned in
+     * exchange for improved performance.
+     */
+    public void getTrimmedBounds (int index, Rectangle bounds);
+}