Bug 729, Bug 849: Honor JAWTWindow's [parent] visibility state

JAWTWindow snoops HierarchyEvents for SHOWING_CHANGED to
track local component's visibility state as well as it's global visibility state.
The later is determined by it's parent's visibility change.

If 'removeNotify()' is called, component's visibility is reset to it's local visibility state.

Fixes OSX CALayer component's visibility if parent's visibility changes (Bug 729).

Fixes continuous GL rendering if parent is invisible (Bug 849).

4 files changed, 454 insertions, 30 deletions

diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index 069147d26..6e198d961 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -37,6 +37,7 @@
 
 package com.jogamp.nativewindow.awt;
 
+import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.locks.LockFactory;
 import com.jogamp.common.util.locks.RecursiveLock;
 import com.jogamp.nativewindow.MutableGraphicsConfiguration;
@@ -46,6 +47,8 @@ import java.awt.Container;
 import java.awt.Window;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
+import java.awt.event.HierarchyEvent;
+import java.awt.event.HierarchyListener;
 import java.applet.Applet;
 
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
@@ -76,10 +79,11 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   protected boolean shallUseOffscreenLayer = false;
 
   // lifetime: forever
-  protected Component component;
-  private AWTGraphicsConfiguration config; // control access due to delegation
-  private SurfaceUpdatedHelper surfaceUpdatedHelper = new SurfaceUpdatedHelper();
-  private RecursiveLock surfaceLock = LockFactory.createRecursiveLock();
+  protected final Component component;
+  private final AWTGraphicsConfiguration config; // control access due to delegation
+  private final SurfaceUpdatedHelper surfaceUpdatedHelper = new SurfaceUpdatedHelper();
+  private final RecursiveLock surfaceLock = LockFactory.createRecursiveLock();
+  private final JAWTComponentListener jawtComponentListener;
 
   // lifetime: valid after lock but may change with each 1st lock, purges after invalidate
   private boolean isApplet;
@@ -106,39 +110,110 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
     if(! ( config instanceof AWTGraphicsConfiguration ) ) {
         throw new NativeWindowException("Error: AbstractGraphicsConfiguration is not an AWTGraphicsConfiguration: "+config);
     }
+    this.component = (Component)comp;
     this.config = (AWTGraphicsConfiguration) config;
-    init((Component)comp);
-  }
-
-  private void init(Component windowObject) throws NativeWindowException {
+    this.jawtComponentListener = new JAWTComponentListener();
+    this.component.addComponentListener(jawtComponentListener);
+    this.component.addHierarchyListener(jawtComponentListener);
     invalidate();
-    this.component = windowObject;
     this.isApplet = false;
     this.offscreenSurfaceLayer = 0;
-    this.component.addComponentListener(new ComponentListener() {
-        private boolean visible = component.isVisible();
+  }
+  private class JAWTComponentListener implements ComponentListener, HierarchyListener {
+        private boolean localVisibility = component.isVisible();
+        private boolean globalVisibility = localVisibility;
+        private boolean visibilityPropagation = false;
+        
+        private String s(ComponentEvent e) {
+            return "visible[local "+localVisibility+", global "+globalVisibility+", propag. "+visibilityPropagation+"],"+Platform.getNewline()+
+                   "    ** COMP "+e.getComponent()+Platform.getNewline()+
+                   "    ** SOURCE "+e.getSource()+Platform.getNewline()+
+                   "    ** THIS "+component;
+        }
+        private String s(HierarchyEvent e) {
+            return "visible[local "+localVisibility+", global "+globalVisibility+", propag. "+visibilityPropagation+"], changeBits 0x"+Long.toHexString(e.getChangeFlags())+Platform.getNewline()+
+                   "    ** COMP "+e.getComponent()+Platform.getNewline()+
+                   "    ** SOURCE "+e.getSource()+Platform.getNewline()+
+                   "    ** CHANGED "+e.getChanged()+Platform.getNewline()+
+                   "    ** CHANGEDPARENT "+e.getChangedParent()+Platform.getNewline()+
+                   "    ** THIS "+component;
+        }
+
         @Override
         public void componentResized(ComponentEvent e) {
-            layoutSurfaceLayerIfEnabled(visible);
+            if(DEBUG) {
+                System.err.println("JAWTWindow.componentResized: "+s(e));
+            }
+            layoutSurfaceLayerIfEnabled(globalVisibility && localVisibility);
         }
 
         @Override
         public void componentMoved(ComponentEvent e) {
-            layoutSurfaceLayerIfEnabled(visible);
+            if(DEBUG) {
+                System.err.println("JAWTWindow.componentMoved: "+s(e));
+            }
+            layoutSurfaceLayerIfEnabled(globalVisibility && localVisibility);
         }
 
         @Override
         public void componentShown(ComponentEvent e) {
-            visible = true;
-            layoutSurfaceLayerIfEnabled(visible);
+            if(DEBUG) {
+                System.err.println("JAWTWindow.componentShown: "+s(e));
+            }
+            layoutSurfaceLayerIfEnabled(globalVisibility && localVisibility);
         }
 
         @Override
         public void componentHidden(ComponentEvent e) { 
-            visible = false;
-            layoutSurfaceLayerIfEnabled(visible);
-        }       
-    });
+            if(DEBUG) {
+                System.err.println("JAWTWindow.componentHidden: "+s(e));
+            }
+            layoutSurfaceLayerIfEnabled(globalVisibility && localVisibility);
+        }
+
+        @Override
+        public void hierarchyChanged(HierarchyEvent e) {
+            final long bits = e.getChangeFlags();
+            final java.awt.Component changed = e.getChanged();            
+            if( 0 != ( java.awt.event.HierarchyEvent.DISPLAYABILITY_CHANGED & bits ) ) {
+                final boolean displayable = changed.isDisplayable();
+                final boolean resetLocalVisibility = changed == component && !displayable && localVisibility != component.isVisible();
+                if( resetLocalVisibility ) {
+                    // Reset components local state if detached from parent, i.e. 'removeNotify()'
+                    visibilityPropagation = true;
+                    if(DEBUG) {
+                        System.err.println("JAWTWindow.hierarchyChanged DISPLAYABILITY_CHANGED (1): displayable "+displayable+", "+s(e));
+                    }
+                    component.setVisible(localVisibility);
+                } else if(DEBUG) {
+                    System.err.println("JAWTWindow.hierarchyChanged DISPLAYABILITY_CHANGED (x): displayable "+displayable+", "+s(e));
+                }
+            } else if( 0 != ( java.awt.event.HierarchyEvent.SHOWING_CHANGED & bits ) ) {
+                final boolean showing = changed.isShowing();
+                final boolean propagateVisibility = changed != component && ( showing && localVisibility ) != component.isVisible();
+                if( propagateVisibility ) {
+                    // Propagate parent's visibility
+                    final boolean _visible = showing && localVisibility;
+                    visibilityPropagation = true;
+                    globalVisibility = showing;
+                    if(DEBUG) {
+                        System.err.println("JAWTWindow.hierarchyChanged SHOWING_CHANGED (1): showing "+showing+" -> visible "+_visible+", "+s(e));
+                    }
+                    component.setVisible(_visible);
+                } else if( changed == component ) {
+                    // Update component's local visibility state
+                    if(!visibilityPropagation) {
+                        localVisibility = showing;
+                    }
+                    visibilityPropagation = false;
+                    if(DEBUG) {
+                        System.err.println("JAWTWindow.hierarchyChanged SHOWING_CHANGED (0): showing "+showing+" -> visible "+(showing && localVisibility)+", "+s(e));
+                    }
+                } else if(DEBUG) {
+                    System.err.println("JAWTWindow.hierarchyChanged SHOWING_CHANGED (x): showing "+showing+" -> visible "+(showing && localVisibility)+", "+s(e));
+                }
+            }
+        }
   }
 
   protected synchronized void invalidate() {
@@ -488,7 +563,6 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
     surfaceLock.lock();
     try {
         invalidate();
-        component = null; // don't dispose the AWT component, since we are merely an immutable uplink
     } finally {
         surfaceLock.unlock();
     }
@@ -638,12 +712,8 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
                 ", surfaceHandle "+toHexString(getSurfaceHandle())+
                 ", bounds "+bounds+", insets "+insets
                 );
-    if(null!=component) {
-      sb.append(", pos "+getX()+"/"+getY()+", size "+getWidth()+"x"+getHeight()+
-                ", visible "+component.isVisible());
-    } else {
-      sb.append(", component NULL");
-    }
+    sb.append(", pos "+getX()+"/"+getY()+", size "+getWidth()+"x"+getHeight()+
+              ", visible "+component.isVisible());
     sb.append(", lockedExt "+isSurfaceLockedByOtherThread()+
               ",\n\tconfig "+getPrivateGraphicsConfiguration()+
               ",\n\tawtComponent "+getAWTComponent()+
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03AWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03aAWT.java
index 92d24e417..3451b75cc 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03AWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03aAWT.java
@@ -54,13 +54,23 @@ import com.jogamp.opengl.test.junit.util.UITestCase;
 import com.jogamp.opengl.util.Animator;
 
 /**
- * Bug 816: OSX CALayer Positioning Bug - AWT Frame BorderLayout w/ Checkbox North, GLCanvas Center
+ * AWT Frame BorderLayout w/ Checkbox North, GLCanvas Center.
+ * <p>
+ * Checkbox toggles GLCanvas visibility state.
+ * </p>
+ * <p>
+ * Validates bugs:
+ * <ul>
+ *   <li>Bug 816: OSX CALayer Positioning Bug</li>
+ *   <li>Bug 729: OSX CALayer shall honor the Component's visibility state</li>
+ * </ul>
+ * </p>
  * <p>
  * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
  * </p>
  */
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
-public class TestBug816OSXCALayerPos03AWT extends UITestCase {
+public class TestBug816OSXCALayerPos03aAWT extends UITestCase {
     static long duration = 1600; // ms    
     static int width=640, height=480;
     
@@ -68,7 +78,7 @@ public class TestBug816OSXCALayerPos03AWT extends UITestCase {
     public void test() throws InterruptedException, InvocationTargetException {
         final GLCapabilities caps = new GLCapabilities(getGLP());
         
-        final Frame frame = new Frame("TestBug816OSXCALayerPos03AWT");
+        final Frame frame = new Frame("TestBug816OSXCALayerPos03aAWT");
         Assert.assertNotNull(frame);
 
         final GLCanvas glCanvas1 = new GLCanvas(caps);
@@ -150,6 +160,6 @@ public class TestBug816OSXCALayerPos03AWT extends UITestCase {
             }
         }
         
-        org.junit.runner.JUnitCore.main(TestBug816OSXCALayerPos03AWT.class.getName());
+        org.junit.runner.JUnitCore.main(TestBug816OSXCALayerPos03aAWT.class.getName());
     }
 }
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03bAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03bAWT.java
new file mode 100644
index 000000000..6f57f1e77
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03bAWT.java
@@ -0,0 +1,171 @@
+/**
+ * Copyright 2013 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.test.junit.jogl.awt;
+
+import java.awt.BorderLayout;
+import java.awt.Checkbox;
+import java.awt.Frame;
+import java.awt.GridLayout;
+import java.awt.Panel;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.lang.reflect.InvocationTargetException;
+
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLProfile;
+import javax.media.opengl.awt.GLCanvas;
+
+import org.junit.Assert;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runners.MethodSorters;
+
+import com.jogamp.newt.event.TraceWindowAdapter;
+import com.jogamp.newt.event.awt.AWTWindowAdapter;
+import com.jogamp.opengl.test.junit.jogl.demos.es2.GearsES2;
+import com.jogamp.opengl.test.junit.util.AWTRobotUtil;
+import com.jogamp.opengl.test.junit.util.MiscUtils;
+import com.jogamp.opengl.test.junit.util.QuitAdapter;
+import com.jogamp.opengl.test.junit.util.UITestCase;
+import com.jogamp.opengl.util.Animator;
+
+/**
+ * AWT Frame BorderLayout w/ Checkbox North, Panel.GLCanvas Center.
+ * <p>
+ * Checkbox toggles GLCanvas's parent panel's visibility state.
+ * </p>
+ * <p>
+ * Validates bugs:
+ * <ul>
+ *   <li>Bug 816: OSX CALayer Positioning Bug</li>
+ *   <li>Bug 729: OSX CALayer shall honor the Component's visibility state</li>
+ *   <li>Bug 849: AWT GLAutoDrawables (JAWTWindow) shall honor it's parent visibility state</li>
+ * </ul>
+ * </p>
+ * <p>
+ * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
+ * </p>
+ */
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestBug816OSXCALayerPos03bAWT extends UITestCase {
+    static long duration = 1600; // ms    
+    static int width=640, height=480;
+    
+    @Test
+    public void test() throws InterruptedException, InvocationTargetException {
+        final GLCapabilities caps = new GLCapabilities(getGLP());
+        
+        final Frame frame = new Frame("TestBug816OSXCALayerPos03bAWT");
+        Assert.assertNotNull(frame);
+
+        final GLCanvas glCanvas1 = new GLCanvas(caps);
+        Assert.assertNotNull(glCanvas1);
+        glCanvas1.addGLEventListener(new GearsES2(1));
+        // Put it in a panel
+        final Panel panel = new Panel(new GridLayout(1, 1));
+        panel.add(glCanvas1);
+        
+        final Animator animator = new Animator();
+        animator.add(glCanvas1);
+        QuitAdapter quitAdapter = new QuitAdapter();
+        
+        new AWTWindowAdapter(new TraceWindowAdapter(quitAdapter)).addTo(frame);
+
+        // Create a check box that hides / shows canvas
+        final Checkbox checkbox = new Checkbox("Visible canvas", true);
+        checkbox.addItemListener(new ItemListener() {
+            public void itemStateChanged(ItemEvent ev) {
+                panel.setVisible(checkbox.getState());
+                System.out.println("Visible: [panel "+panel.isVisible()+", canvas "+glCanvas1.isVisible()+"]; Displayable: [panel "+panel.isDisplayable()+", canvas "+glCanvas1.isDisplayable()+"]");
+                if( panel.isVisible() ) {
+                    frame.validate(); // take care of resized frame while hidden
+                }
+            }
+        });
+
+        // Build a GUI that displays canvas and check box
+        frame.setLayout(new BorderLayout());
+        frame.add(panel, BorderLayout.CENTER);
+        frame.add(checkbox, BorderLayout.NORTH);
+
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                frame.setSize(width, height);
+                frame.setVisible(true);
+            }});        
+        Assert.assertEquals(true,  AWTRobotUtil.waitForVisible(frame, true));
+        Assert.assertEquals(true,  AWTRobotUtil.waitForRealized(glCanvas1, true)); 
+        
+        animator.start();
+        Assert.assertTrue(animator.isStarted());
+        Assert.assertTrue(animator.isAnimating());
+        animator.setUpdateFPSFrames(60, System.err);
+        
+        final long t0 = System.currentTimeMillis();
+        long t1 = t0;
+        while(!quitAdapter.shouldQuit() && t1 - t0 < duration) {
+            Thread.sleep(100);
+            t1 = System.currentTimeMillis();
+        }
+
+        Assert.assertNotNull(frame);
+        Assert.assertNotNull(glCanvas1);
+        
+        Assert.assertNotNull(animator);
+        animator.stop();
+        Assert.assertFalse(animator.isAnimating());
+        Assert.assertFalse(animator.isStarted());
+
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                frame.setVisible(false);
+            }});
+        Assert.assertEquals(false, frame.isVisible());
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                frame.remove(panel);
+                frame.dispose();
+            }});
+    }
+
+    static GLProfile getGLP() {
+        return GLProfile.getMaxProgrammableCore(true);
+    }
+    
+    public static void main(String args[]) {
+        for(int i=0; i<args.length; i++) {
+            if(args[i].equals("-time")) {
+                i++;
+                duration = MiscUtils.atol(args[i], duration);
+            }
+        }
+        
+        org.junit.runner.JUnitCore.main(TestBug816OSXCALayerPos03bAWT.class.getName());
+    }
+}
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03cAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03cAWT.java
new file mode 100644
index 000000000..b06e9d970
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPos03cAWT.java
@@ -0,0 +1,173 @@
+/**
+ * Copyright 2013 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.test.junit.jogl.awt;
+
+import java.awt.BorderLayout;
+import java.awt.Container;
+import java.awt.GridLayout;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.lang.reflect.InvocationTargetException;
+
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLProfile;
+import javax.media.opengl.awt.GLCanvas;
+import javax.swing.JCheckBox;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+import org.junit.Assert;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runners.MethodSorters;
+
+import com.jogamp.newt.event.TraceWindowAdapter;
+import com.jogamp.newt.event.awt.AWTWindowAdapter;
+import com.jogamp.opengl.test.junit.jogl.demos.es2.GearsES2;
+import com.jogamp.opengl.test.junit.util.AWTRobotUtil;
+import com.jogamp.opengl.test.junit.util.MiscUtils;
+import com.jogamp.opengl.test.junit.util.QuitAdapter;
+import com.jogamp.opengl.test.junit.util.UITestCase;
+import com.jogamp.opengl.util.Animator;
+
+/**
+ * AWT JFrame BorderLayout w/ Checkbox North, JPanel.GLCanvas Center.
+ * <p>
+ * Checkbox toggles GLCanvas's parent jpanel's visibility state.
+ * </p>
+ * <p>
+ * Validates bugs:
+ * <ul>
+ *   <li>Bug 816: OSX CALayer Positioning Bug</li>
+ *   <li>Bug 729: OSX CALayer shall honor the Component's visibility state</li>
+ *   <li>Bug 849: AWT GLAutoDrawables (JAWTWindow) shall honor it's parent visibility state</li>
+ * </ul>
+ * </p>
+ * <p>
+ * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
+ * </p>
+ */
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class TestBug816OSXCALayerPos03cAWT extends UITestCase {
+    static long duration = 1600; // ms    
+    static int width=640, height=480;
+    
+    @Test
+    public void test() throws InterruptedException, InvocationTargetException {
+        final GLCapabilities caps = new GLCapabilities(getGLP());
+        
+        final JFrame frame = new JFrame("TestBug816OSXCALayerPos03cAWT");
+        Assert.assertNotNull(frame);
+        final Container framePane = frame.getContentPane();
+        
+        final GLCanvas glCanvas1 = new GLCanvas(caps);
+        Assert.assertNotNull(glCanvas1);
+        glCanvas1.addGLEventListener(new GearsES2(1));
+        // Put it in a panel
+        final JPanel panel = new JPanel(new GridLayout(1, 1));
+        panel.add(glCanvas1);
+        
+        final Animator animator = new Animator();
+        animator.add(glCanvas1);
+        QuitAdapter quitAdapter = new QuitAdapter();
+        
+        new AWTWindowAdapter(new TraceWindowAdapter(quitAdapter)).addTo(frame);
+
+        // Create a check box that hides / shows canvas
+        final JCheckBox checkbox = new JCheckBox("Visible canvas", true);
+        checkbox.addItemListener(new ItemListener() {
+            public void itemStateChanged(ItemEvent ev) {
+                panel.setVisible(checkbox.getSelectedObjects()!=null);
+                System.out.println("Visible: [panel "+panel.isVisible()+", canvas "+glCanvas1.isVisible()+"]; Displayable: [panel "+panel.isDisplayable()+", canvas "+glCanvas1.isDisplayable()+"]");
+                if( panel.isVisible() ) {
+                    frame.validate(); // take care of resized frame while hidden
+                }
+            }
+        });
+
+        // Build a GUI that displays canvas and check box
+        framePane.setLayout(new BorderLayout());
+        framePane.add(panel, BorderLayout.CENTER);
+        framePane.add(checkbox, BorderLayout.NORTH);
+
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                frame.setSize(width, height);
+                frame.setVisible(true);
+            }});        
+        Assert.assertEquals(true,  AWTRobotUtil.waitForVisible(frame, true));
+        Assert.assertEquals(true,  AWTRobotUtil.waitForRealized(glCanvas1, true)); 
+        
+        animator.start();
+        Assert.assertTrue(animator.isStarted());
+        Assert.assertTrue(animator.isAnimating());
+        animator.setUpdateFPSFrames(60, System.err);
+        
+        final long t0 = System.currentTimeMillis();
+        long t1 = t0;
+        while(!quitAdapter.shouldQuit() && t1 - t0 < duration) {
+            Thread.sleep(100);
+            t1 = System.currentTimeMillis();
+        }
+
+        Assert.assertNotNull(frame);
+        Assert.assertNotNull(glCanvas1);
+        
+        Assert.assertNotNull(animator);
+        animator.stop();
+        Assert.assertFalse(animator.isAnimating());
+        Assert.assertFalse(animator.isStarted());
+
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                frame.setVisible(false);
+            }});
+        Assert.assertEquals(false, frame.isVisible());
+        javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                framePane.remove(panel);
+                frame.dispose();
+            }});
+    }
+
+    static GLProfile getGLP() {
+        return GLProfile.getMaxProgrammableCore(true);
+    }
+    
+    public static void main(String args[]) {
+        for(int i=0; i<args.length; i++) {
+            if(args[i].equals("-time")) {
+                i++;
+                duration = MiscUtils.atol(args[i], duration);
+            }
+        }
+        
+        org.junit.runner.JUnitCore.main(TestBug816OSXCALayerPos03cAWT.class.getName());
+    }
+}