Changed MultiFrameImage around so that it retains total control over its

internal images and doesn't necessarily need to decode them into multiple
images or even have actual images at all. This cleans things up and paves
the way for our "trimmed" image support which is forthcoming.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1335 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/util/MultiFrameImage.java

@@ -1,8 +1,9 @@
 //
-// $Id: MultiFrameImage.java,v 1.1 2001/08/14 23:35:22 mdb Exp $
+// $Id: MultiFrameImage.java,v 1.2 2002/05/04 19:35:31 mdb Exp $
 
 package com.threerings.media.sprite;
 
+import java.awt.Graphics;
 import java.awt.Image;
 
 /**
@@ -17,7 +18,24 @@ public interface MultiFrameImage
     public int getFrameCount ();
 
     /**
-     * Returns the image for the specified frame index.
+     * Returns the width of the specified frame image.
      */
-    public Image getFrame (int index);
+    public int getWidth (int index);
+
+    /**
+     * Returns the height of the specified frame image.
+     */
+    public int getHeight (int index);
+
+    /**
+     * Renders the specified frame into the specified graphics object at
+     * the specified coordinates.
+     */
+    public void paintFrame (Graphics g, int index, int x, int y);
+
+    /**
+     * Returns true if the specified frame contains a non-transparent
+     * pixel at the specified coordinates.
+     */
+    public boolean hitTest (int index, int x, int y);
 }