85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/****************************************************************************
|
|
* graphics/nxbe/nxbe_setposition.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <assert.h>
|
|
|
|
#include <nuttx/nx/nxglib.h>
|
|
|
|
#include "nxbe.h"
|
|
#include "nxmu.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxbe_setposition
|
|
*
|
|
* Description:
|
|
* 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;
|
|
|
|
DEBUGASSERT(wnd != NULL && pos != NULL);
|
|
|
|
/* Back out the old window origin position from the bounding box */
|
|
|
|
nxgl_rectoffset(&rect,
|
|
&wnd->bounds,
|
|
-wnd->bounds.pt1.x,
|
|
-wnd->bounds.pt1.y);
|
|
|
|
/* Add the new window origin into the bounding box */
|
|
|
|
nxgl_rectcopy(&before, &wnd->bounds);
|
|
nxgl_rectoffset(&wnd->bounds, &rect, pos->x, pos->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);
|
|
|
|
/* Report the new size/position */
|
|
|
|
nxmu_reportposition(wnd);
|
|
|
|
/* Then redraw this window AND all windows below it. Having moved the
|
|
* window, we may have exposed previously obscured portions of windows
|
|
* below this one.
|
|
*/
|
|
|
|
nxbe_redrawbelow(wnd->be, wnd, &rect);
|
|
}
|