From e9ce2246c947cc357fef993003008fe4c6a0495f Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Thu, 3 Oct 2013 15:35:09 +0200
Subject: Bug 816 (OSX CALayer pos): Add detailed description (pseudo code) to
 JAWTUtil.JAWT_OSX_CALAYER_QUIRK_LAYOUT

---
 .../classes/jogamp/nativewindow/jawt/JAWTUtil.java   | 20 +++++++++++++++++++-
 .../nativewindow/jawt/macosx/MacOSXJAWTWindow.java   |  4 ++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/nativewindow/classes/jogamp/nativewindow/jawt/JAWTUtil.java b/src/nativewindow/classes/jogamp/nativewindow/jawt/JAWTUtil.java
index b20007d53..844b17469 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/jawt/JAWTUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/jawt/JAWTUtil.java
@@ -152,7 +152,7 @@ public class JAWTUtil {
    * CALayer position needs to be derived from AWT position 
    * in relation to super CALayer.
    * <p>
-   * AWT's super-calayer, i.e. the AWT's own component CALayer,
+   * AWT's super-calayer, i.e. the AWT top-container's CALayer,
    * does not layout our root-calayer in respect to this component's
    * position and size, at least when resizing programmatically.
    * </p>
@@ -164,6 +164,24 @@ public class JAWTUtil {
    * The super-calayer bounds exclude the frame's heavyweight border/insets.
    * </p>
    * <p>
+   * The super-calayer lies within the AWT top-container client space (content).
+   * </p>    
+   * <p>
+   * Component's location in super-calayer:
+   * <pre>
+      p0 = c.locationOnScreen();
+      p0 -= c.getOutterComp.getPos();
+      p0 -= c.getOutterComp.getInsets();
+   * </pre>
+   * Where 'locationOnScreen()' is:
+   * <pre>
+     p0 = 0/0;
+     while( null != c ) {
+       p0 += c.getPos();
+     }
+   * </pre>
+   * </p>
+   * <p>
    * This flags also sets {@link #JAWT_OSX_CALAYER_QUIRK_SIZE},
    * i.e. they are related.
    * </p>
diff --git a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
index 833e6cd24..2eff1bc09 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
@@ -110,7 +110,7 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
               // AWT position is top-left w/ insets, where CALayer position is bottom/left from root CALayer w/o insets.
               // Determine p0: components location on screen w/o insets.
               // CALayer position will be determined in native code.
-              // See: {@link JAWTWindow#JAWT_OSX_CALAYER_QUIRK_LAYOUT}
+              // See detailed description in {@link JAWTUtil#JAWT_OSX_CALAYER_QUIRK_LAYOUT}
               final Point p0 = new Point();
               final Component outterComp = getLocationOnScreenNonBlocking(p0, component);
               final java.awt.Insets outterInsets = AWTMisc.getInsets(outterComp, true);
@@ -141,7 +141,7 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
           // AWT position is top-left w/ insets, where CALayer position is bottom/left from root CALayer w/o insets.
           // Determine p0: components location on screen w/o insets.
           // CALayer position will be determined in native code.
-          // See: {@link JAWTWindow#JAWT_OSX_CALAYER_QUIRK_LAYOUT}
+          // See detailed description in {@link JAWTUtil#JAWT_OSX_CALAYER_QUIRK_LAYOUT}
           final Point p0 = new Point();
           final Component outterComp = getLocationOnScreenNonBlocking(p0, component);
           final java.awt.Insets outterInsets = AWTMisc.getInsets(outterComp, true);
-- 
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