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

87 lines
3.5 KiB
C

/****************************************************************************
* libs/libnx/nxtk/nxtk_toolbarbounds.c
*
* Copyright (C) 2012-2013 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 <sys/types.h>
#include <assert.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxtk.h>
#include "nxtk.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtk_toolbarbounds
*
* Description:
* Return a bounding box that contains the toolbar in the coordinates of
* the containing, framed window. For example, the recturned origin
* (rect.pt1) is the offset toolbar in the framed window.
*
* NOTE: This function is unsafe in the case of the multi-user NX server
* where the width of the window may be being changed asynchronously! It
* may return the old size in this case.
*
* Input Parameters:
* hfwnd - The handle returned by nxtk_openwindow
* bounds - User provided location in which to return the bounding box.
*
* Returned Value:
* OK on success; ERROR on failure with errno set appropriately
*
****************************************************************************/
int nxtk_toolbarbounds(NXTKWINDOW hfwnd, FAR struct nxgl_rect_s *bounds)
{
FAR struct nxtk_framedwindow_s *fwnd = (FAR struct nxtk_framedwindow_s *)hfwnd;
DEBUGASSERT(hfwnd && bounds);
/* Offset the rectangle by subtracting the current position of the window. */
nxgl_rectoffset(bounds, &fwnd->tbrect,
-fwnd->wnd.bounds.pt1.x, -fwnd->wnd.bounds.pt1.y);
return OK;
}