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diff --git a/nuttx/graphics/nxtk/nxtk_containerclip.c b/nuttx/graphics/nxtk/nxtk_containerclip.c
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-/****************************************************************************
- * graphics/nxtk/nxtk_containerclip.c
- *
- * Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE
- * COPYRIGHT OWNER 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.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdlib.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/nx/nx.h>
-#include <nuttx/nx/nxtk.h>
-
-#include "nxfe.h"
-#include "nxtk_internal.h"
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nxtk_containerclip
- *
- * Description:
- * We are given a 'src' rectangle in containing window, relative coordinates
- * (i.e., (0,0) is the top left corner of the outer, containing window).
- * This function will (1) clip that src rectangle so that it lies within
- * the sub-window bounds, and then (2) move the rectangle to that it is
- * relative to the sub-window (i.e., (0,0) is the top left corner of the
- * sub-window).
- *
- * Input parameters:
- * fwnd - The framed window to be used
- * dest - The locaton to put the result
- * src - The src rectangle in relative container-window coordinates
- * bounds - The subwindow bounds in absolute screen coordinates.
- *
- * Returned value:
- * None
- *
- ****************************************************************************/
-
-void nxtk_containerclip(FAR struct nxtk_framedwindow_s *fwnd,
- FAR struct nxgl_rect_s *dest,
- FAR const struct nxgl_rect_s *src,
- FAR const struct nxgl_rect_s *bounds)
-{
- struct nxgl_rect_s relbounds;
-
- /* The 'src' rectangle is relative to the containing window. Convert
- * the sub-window to the same origin.
- */
-
- nxgl_rectoffset(&relbounds, bounds, -fwnd->wnd.bounds.pt1.x,
- -fwnd->wnd.bounds.pt1.y);
-
- /* The interection then leaves the portion of the containing window that
- * needs to be updated window that needs to be updated.
- */
-
- nxgl_rectintersect(dest, src, &relbounds);
-
- /* Offset this so that is relative to client subwindow origin */
-
- nxgl_rectoffset(dest, dest, fwnd->wnd.bounds.pt1.x - bounds->pt1.x,
- fwnd->wnd.bounds.pt1.y - bounds->pt1.y);
-}