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/image/BackedVolatileMirage.java

@@ -0,0 +1,82 @@
+//
+// $Id: BackedVolatileMirage.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.image;
+
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.image.BufferedImage;
+
+import com.threerings.media.Log;
+
+/**
+ * Provides a volatile mirage that is backed by a buffered image that is
+ * not obtained from the image manager but is instead provided at
+ * construct time and completely circumvents the image manager's cache. As
+ * such, this should not be used unless you know what you're doing.
+ */
+public class BackedVolatileMirage extends VolatileMirage
+{
+    /**
+     * Creates a mirage with the supplied regeneration informoation and
+     * prepared image.
+     */
+    public BackedVolatileMirage (ImageManager imgr, BufferedImage source)
+    {
+        super(imgr, new Rectangle(0, 0, source.getWidth(), source.getHeight()));
+        _source = source;
+
+        // create our volatile image for the first time
+        createVolatileImage();
+    }
+
+    // documentation inherited
+    protected int getTransparency ()
+    {
+        return _source.getColorModel().getTransparency();
+    }
+
+    // documentation inherited
+    protected void refreshVolatileImage ()
+    {
+        Graphics gfx = null;
+        try {
+            gfx = _image.getGraphics();
+            gfx.drawImage(_source, -_bounds.x, -_bounds.y, null);
+
+        } catch (Exception e) {
+            Log.warning("Failure refreshing mirage " + this + ".");
+            Log.logStackTrace(e);
+
+        } finally {
+            gfx.dispose();
+        }
+    }
+
+    // documentation inherited
+    protected void toString (StringBuilder buf)
+    {
+        super.toString(buf);
+        buf.append(", src=").append(_source);
+    }
+
+    protected BufferedImage _source;
+}