Behold, Nenya, Ring of Water and repository for our media and animation related

goodies, both Java 2D and LWJGL/JME 3D.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@1 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/media/tile/TrimmedTileSet.java

@@ -0,0 +1,114 @@
+//
+// $Id: TrimmedTileSet.java 4191 2006-06-13 22:42:20Z ray $
+//
+// Narya library - tools for developing networked games
+// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
+// http://www.threerings.net/code/narya/
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.threerings.media.tile;
+
+import java.awt.Rectangle;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import com.threerings.media.image.Colorization;
+import com.threerings.media.tile.util.TileSetTrimmer;
+
+/**
+ * Contains the necessary information to create a set of trimmed tiles
+ * from a base image and the associated trim metrics.
+ */
+public class TrimmedTileSet extends TileSet
+{
+    // documentation inherited
+    public int getTileCount ()
+    {
+        return _obounds.length;
+    }
+
+    // documentation inherited
+    protected Rectangle computeTileBounds (int tileIndex)
+    {
+        return _obounds[tileIndex];
+    }
+
+    // documentation inherited
+    protected Tile createTile ()
+    {
+        return new TrimmedTile();
+    }
+
+    // documentation inherited
+    protected void initTile (Tile tile, int tileIndex, Colorization[] zations)
+    {
+        super.initTile(tile, tileIndex, zations);
+        ((TrimmedTile)tile).setTrimmedBounds(_tbounds[tileIndex]);
+    }
+
+    /**
+     * Creates a trimmed tileset from the supplied source tileset. The
+     * image path must be set by hand to the appropriate path based on
+     * where the image data that is written to the <code>destImage</code>
+     * parameter is actually stored on the file system. See {@link
+     * TileSetTrimmer#trimTileSet} for further information.
+     */
+    public static TrimmedTileSet trimTileSet (
+        TileSet source, OutputStream destImage)
+        throws IOException
+    {
+        final TrimmedTileSet tset = new TrimmedTileSet();
+        tset.setName(source.getName());
+        int tcount = source.getTileCount();
+        tset._tbounds = new Rectangle[tcount];
+        tset._obounds = new Rectangle[tcount];
+
+        // grab the dimensions of the original tiles
+        for (int ii = 0; ii < tcount; ii++) {
+            tset._tbounds[ii] = source.computeTileBounds(ii);
+        }
+
+        // create the trimmed tileset image
+        TileSetTrimmer.TrimMetricsReceiver tmr =
+            new TileSetTrimmer.TrimMetricsReceiver() {
+                public void trimmedTile (int tileIndex, int imageX, int imageY,
+                                         int trimX, int trimY,
+                                         int trimWidth, int trimHeight) {
+                    tset._tbounds[tileIndex].x = trimX;
+                    tset._tbounds[tileIndex].y = trimY;
+                    tset._obounds[tileIndex] =
+                        new Rectangle(imageX, imageY, trimWidth, trimHeight);
+                }
+            };
+        TileSetTrimmer.trimTileSet(source, destImage, tmr);
+
+        return tset;
+    }
+
+    /** The width and height of the trimmed tile, and the x and y offset
+     * of the trimmed image within our tileset image. */
+    protected Rectangle[] _obounds;
+
+    /** The width and height of the untrimmed image and the x and y offset
+     * within the untrimmed image at which the trimmed image should be
+     * rendered. */
+    protected Rectangle[] _tbounds;
+
+    /** Increase this value when object's serialized state is impacted by
+     * a class change (modification of fields, inheritance). */
+    private static final long serialVersionUID = 1;
+}