SWT GLCanvas: Fix sporadic drop of redraw on X11 _and_ allow using custom GLCapabilities on X11 (feature complete)

To allow custom GLCapabilities, we had to use native parenting on X11 w/ a new child window.
The desired visualID chosen by the users GLCapabilities is passed to the new child window.

The redraw drops must be caused by the original GDK or the new child GDK window.
Now we use a plain X11 child window similar to NEWT's X11 window and NewtCanvasSWT,
which doesn't expose this bug.
(Note: SWTAccessor/GLCanvas still contains the uncommented GDK code path for further inspection, if desired)

Also added SWTNewtEventFactory to test event handling on the SWT GLCanvas w/ GearsES2.

TestSWTJOGLGLCanvas01GLn tests custom GLCapabilities now.

SWTEDTUtil has been moved to private: com.jogamp.newt.swt -> jogamp.newt.swt.

1 files changed, 3 insertions, 2 deletions

diff --git a/make/config/nativewindow/x11-CustomJavaCode.java b/make/config/nativewindow/x11-CustomJavaCode.java
index 8e5da3b2d..4240c5e2f 100644
--- a/make/config/nativewindow/x11-CustomJavaCode.java
+++ b/make/config/nativewindow/x11-CustomJavaCode.java
@@ -28,8 +28,9 @@
 
   public static native int DefaultVisualID(long display, int screen);
 
-  public static native long CreateDummyWindow(long display, int screen_index, int visualID, int width, int height);
-  public static native void DestroyDummyWindow(long display, long window);
+  public static native long CreateWindow(long parent, long display, int screen_index, int visualID, int width, int height, boolean input, boolean visible);
+  public static native void DestroyWindow(long display, long window);
+  public static native void SetWindowPosSize(long display, long window, int x, int y, int width, int height);
 
   public static Point GetRelativeLocation(long display, int screen_index, long src_win, long dest_win, int src_x, int src_y) {
     return (Point) GetRelativeLocation0(display, screen_index, src_win, dest_win, src_x, src_y);