src/macosx/classes/sun/lwawt/LWRepaintArea.java

*** 1,7 ****
  /*
!  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 24,64 ****
   */
  
  
  package sun.lwawt;
  
- import sun.awt.RepaintArea;
- 
  import java.awt.Component;
  import java.awt.Graphics;
  
  /**
   * @author Sergey Bylokhov
   */
  final class LWRepaintArea extends RepaintArea {
  
      @Override
      protected void updateComponent(final Component comp, final Graphics g) {
          if (comp != null) {
              super.updateComponent(comp, g);
!             flushBuffers((LWComponentPeer) comp.getPeer());
          }
      }
  
      @Override
      protected void paintComponent(final Component comp, final Graphics g) {
          if (comp != null) {
!             final LWComponentPeer peer = (LWComponentPeer) comp.getPeer();
              if (peer != null) {
!                 peer.paintPeer(g);
              }
              super.paintComponent(comp, g);
!             flushBuffers(peer);
!         }
!     }
! 
!     private static void flushBuffers(final LWComponentPeer peer) {
!         if (peer != null) {
!             peer.flushOnscreenGraphics();
          }
      }
  }
--- 24,63 ----
   */
  
  
  package sun.lwawt;
  
  import java.awt.Component;
  import java.awt.Graphics;
  
+ import sun.awt.AWTAccessor;
+ import sun.awt.RepaintArea;
+ 
  /**
+  * Emulates appearance of heavyweight components before call of the user code.
+  *
   * @author Sergey Bylokhov
   */
  final class LWRepaintArea extends RepaintArea {
  
      @Override
      protected void updateComponent(final Component comp, final Graphics g) {
+         // We shouldn't paint native component as a result of UPDATE events,
+         // just flush onscreen back-buffer.
          if (comp != null) {
              super.updateComponent(comp, g);
!             LWComponentPeer.flushOnscreenGraphics();
          }
      }
  
      @Override
      protected void paintComponent(final Component comp, final Graphics g) {
          if (comp != null) {
!             Object peer = AWTAccessor.getComponentAccessor().getPeer(comp);
              if (peer != null) {
!                 ((LWComponentPeer<?, ?>) peer).paintPeer(g);
              }
              super.paintComponent(comp, g);
!             LWComponentPeer.flushOnscreenGraphics();
          }
      }
  }