| /**************************************************************************** |
| * 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); |
| } |