px4-firmware/nuttx/graphics/nxtk/nxtk_setsubwindows.c

166 lines
5.8 KiB
C

/****************************************************************************
* graphics/nxtk/nxtk_setsubwindows.c
*
* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <stdlib.h>
#include <semaphore.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/nx/nx.h>
#include "nxtk_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* 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;
}