incubator-nuttx/libs/libnx/nxtk/nxtk_setsubwindows.c

128 lines
4.0 KiB
C

/****************************************************************************
* libs/libnx/nxtk/nxtk_setsubwindows.c
*
* SPDX-License-Identifier: Apache-2.0
*
* 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 <stdlib.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/nx/nx.h>
#include "nxtk.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtk_setsubwindows
*
* Description:
* Give the window dimensions, border width, and toolbar height,
* calculate the new dimensions of the toolbar region and client window
* region
*
****************************************************************************/
void nxtk_setsubwindows(FAR struct nxtk_framedwindow_s *fwnd)
{
nxgl_coord_t fullheight;
nxgl_coord_t bdrheight = 0;
nxgl_coord_t tbtop = fwnd->wnd.bounds.pt1.y;
nxgl_coord_t tbheight = 0;
nxgl_coord_t fwtop = fwnd->wnd.bounds.pt1.y;
nxgl_coord_t fwheight = 0;
nxgl_coord_t fullwidth;
nxgl_coord_t bdrwidth;
nxgl_coord_t fwwidth;
nxgl_coord_t fwleft;
/* Divide up the vertical dimension of the window */
fullheight = fwnd->wnd.bounds.pt2.y - fwnd->wnd.bounds.pt1.y + 1;
/* Is it tall enough for a border? */
if (fullheight > 0)
{
/* Get the border height */
bdrheight = ngl_min(2 * CONFIG_NXTK_BORDERWIDTH, fullheight);
/* Position the toolbar and client window just under the top border */
#if CONFIG_NXTK_BORDERWIDTH > 1
tbtop += CONFIG_NXTK_BORDERWIDTH - 1;
fwtop = tbtop + 1;
#else
tbtop += CONFIG_NXTK_BORDERWIDTH;
fwtop = tbtop;
#endif
/* Is it big enough for any part of the toolbar? */
if (fullheight > 2 * CONFIG_NXTK_BORDERWIDTH)
{
/* Yes.. get the height of the toolbar */
tbheight = fwnd->tbheight;
if (tbheight >= fullheight - bdrheight)
{
tbheight = fullheight - bdrheight;
}
else
{
/* And the client window gets whatever is left */
fwheight = fullheight - bdrheight - tbheight;
}
/* Position the client window just under the toolbar */
fwtop += tbheight;
}
}
/* Divide up the horizontal dimensions of the window */
fullwidth = fwnd->wnd.bounds.pt2.x - fwnd->wnd.bounds.pt1.x + 1;
bdrwidth = ngl_min(2 * CONFIG_NXTK_BORDERWIDTH, fullwidth);
fwwidth = fullwidth - bdrwidth;
fwleft = fwnd->wnd.bounds.pt1.x + bdrwidth / 2;
/* Realize the positions/dimensions */
fwnd->tbrect.pt1.x = fwleft;
fwnd->tbrect.pt1.y = tbtop;
fwnd->tbrect.pt2.x = fwleft + fwwidth - 1;
fwnd->tbrect.pt2.y = tbtop + tbheight - 1;
fwnd->fwrect.pt1.x = fwleft;
fwnd->fwrect.pt1.y = fwtop;
fwnd->fwrect.pt2.x = fwleft + fwwidth - 1;
fwnd->fwrect.pt2.y = fwtop + fwheight - 1;
}