void nxbe_setsize(FAR struct nxbe_window_s *wnd,
FAR const struct nxgl_size_s *size)
{
struct nxgl_rect_s bounds;
#ifdef CONFIG_DEBUG
if (!wnd)
{
return;
}
#endif
/* Save the before size of the window's bounding box */
nxgl_rectcopy(&bounds, &wnd->bounds);
/* Add the window origin to the supplied size get the new window bounding box */
wnd->bounds.pt2.x = wnd->bounds.pt1.x + size->w - 1;
wnd->bounds.pt2.y = wnd->bounds.pt1.y + size->h - 1;
/* Clip the new bounding box so that lies within the background screen */
nxgl_rectintersect(&wnd->bounds, &wnd->bounds, &wnd->be->bkgd.bounds);
/* We need to update the larger of the two rectangles. That will be the
* union of the before and after sizes.
*/
nxgl_rectunion(&bounds, &bounds, &wnd->bounds);
/* Report the new size/position */
nxfe_reportposition(wnd);
/* Then redraw this window AND all windows below it. Having resized the
* window, we may have exposed previoulsy obscured portions of windows
* below this one.
*/
nxbe_redrawbelow(wnd->be, wnd, &bounds);
}
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->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 */
nxfe_reportposition(wnd);
/* 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);
}