676c0e2798
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1370 42af7a65-404d-4744-a932-0658087f49c3
126 lines
4.6 KiB
C
126 lines
4.6 KiB
C
/****************************************************************************
|
|
* graphics/nxbe/nxbe_setposition.c
|
|
*
|
|
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <sys/types.h>
|
|
|
|
#include <nuttx/nxglib.h>
|
|
|
|
#include "nxbe.h"
|
|
#include "nxfe.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxbe_setposition
|
|
*
|
|
* Descripton:
|
|
* This function checks for intersections and redraws the display after
|
|
* a change in the position of a window.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxbe_setposition(FAR struct nxbe_window_s *wnd,
|
|
FAR const struct nxgl_point_s *pos)
|
|
{
|
|
struct nxgl_rect_s before;
|
|
struct nxgl_rect_s rect;
|
|
|
|
#ifdef CONFIG_DEBUG
|
|
if (!wnd)
|
|
{
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Back out the old window origin position from the bounding box */
|
|
|
|
nxgl_rectoffset(&rect, &wnd->bounds, -wnd->origin.x, -wnd->origin.y);
|
|
|
|
/* Set the new origin */
|
|
|
|
wnd->origin.x = pos->x;
|
|
wnd->origin.y = pos->y;
|
|
|
|
/* Add the new window origin back into the bounding box */
|
|
|
|
nxgl_rectcopy(&before, &wnd->bounds);
|
|
nxgl_rectoffset(&wnd->bounds, &rect, wnd->origin.x, wnd->origin.y);
|
|
|
|
/* Get the union of the 'before' bounding box and the 'after' bounding
|
|
* this union is the region of the display that must be updated.
|
|
*/
|
|
|
|
nxgl_rectunion(&rect, &before, &wnd->bounds);
|
|
nxgl_rectintersect(&rect, &rect, &wnd->be->bkgd.bounds);
|
|
|
|
/* Then redraw this window AND all windows below it. Having moved the
|
|
* window, we may have exposed previoulsy obscured portions of windows
|
|
* below this one.
|
|
*/
|
|
|
|
nxbe_redrawbelow(wnd->be, wnd, &rect);
|
|
|
|
/* Report the new size/position */
|
|
|
|
nxfe_reportposition(wnd);
|
|
}
|