1 files changed, 89 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/OffscreenAutoDrawable.java b/src/jogl/classes/com/jogamp/opengl/OffscreenAutoDrawable.java
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+++ b/src/jogl/classes/com/jogamp/opengl/OffscreenAutoDrawable.java
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+/**
+ * Copyright 2012 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+package com.jogamp.opengl;
+
+import javax.media.opengl.GLAutoDrawableDelegate;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLDrawable;
+import javax.media.opengl.GLException;
+
+import jogamp.opengl.GLFBODrawableImpl;
+
+/** 
+ * Platform-independent class exposing FBO offscreen functionality to
+ * applications.
+ * <p>
+ * This class distinguishes itself from {@link GLAutoDrawableDelegate}
+ * with it's {@link #setSize(int, int)} functionality.
+ * </p>
+ */
+public class OffscreenAutoDrawable extends GLAutoDrawableDelegate {
+  
+    public OffscreenAutoDrawable(GLDrawable drawable, GLContext context, Object upstreamWidget) {
+        super(drawable, context, upstreamWidget);
+    }
+
+    /**
+     * Attempts to resize this offscreen auto drawable, if supported
+     * by the underlying {@link GLDrawable).
+     * @param newWidth
+     * @param newHeight
+     * @return <code>true</code> if resize was executed, otherwise <code>false</code>.
+     * @throws GLException in case of an error during the resize operation
+     */
+    public boolean setSize(int newWidth, int newHeight) throws GLException {
+        boolean done = false;
+        if(drawable instanceof GLFBODrawableImpl) {
+            context.makeCurrent();
+            try {                        
+                ((GLFBODrawableImpl)drawable).setSize(context.getGL(), newWidth, newHeight);
+                done = true;
+            } finally {
+                context.release();
+            }
+        }
+        if(done) {
+            this.defaultWindowResizedOp();
+            return true;
+        }
+        return false;
+    }
+    
+    /**
+     * If the underlying {@link GLDrawable} is an FBO implementation
+     * and contains an {#link FBObject}, the same is returned.
+     * Otherwise returns <code>null</code>.
+     */
+    public FBObject getFBObject() { 
+        if(drawable instanceof GLFBODrawableImpl) {
+            return ((GLFBODrawableImpl)drawable).getFBObject();
+        }
+        return null;
+    }
+}