2008-11-28 00:31:37 +01:00
|
|
|
/****************************************************************************
|
2018-05-29 21:21:26 +02:00
|
|
|
* libs/libnx/nxglib/nxglib_nulloverlap.c
|
2008-11-28 00:31:37 +01:00
|
|
|
*
|
2013-12-27 22:51:26 +01:00
|
|
|
* Copyright (C) 2008-2011, 2013 Gregory Nutt. All rights reserved.
|
2012-09-13 20:32:24 +02:00
|
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
2008-11-28 00:31:37 +01:00
|
|
|
*
|
|
|
|
* 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>
|
|
|
|
|
2009-12-15 19:12:29 +01:00
|
|
|
#include <stdbool.h>
|
|
|
|
|
2011-07-24 22:49:01 +02:00
|
|
|
#include <nuttx/nx/nxglib.h>
|
2008-11-28 00:31:37 +01:00
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Pre-Processor Definitions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Private Types
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Private Data
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Public Data
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Private Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Public Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Name: nxgl_rectoverlap
|
|
|
|
*
|
|
|
|
* Description:
|
2009-12-15 19:12:29 +01:00
|
|
|
* Return true if the two rectangles overlap
|
2008-11-28 00:31:37 +01:00
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2009-12-15 19:12:29 +01:00
|
|
|
bool nxgl_rectoverlap(FAR struct nxgl_rect_s *rect1,
|
|
|
|
FAR struct nxgl_rect_s *rect2)
|
2008-11-28 00:31:37 +01:00
|
|
|
{
|
|
|
|
/* The neither is wholly above, below, right, or left of the other, then
|
|
|
|
* the two rectangles overlap in some fashion.
|
|
|
|
*/
|
|
|
|
|
2009-12-15 19:12:29 +01:00
|
|
|
return (rect1->pt1.x <= rect2->pt2.x) && /* false: rect1 is wholly to the right */
|
|
|
|
(rect2->pt1.x <= rect1->pt2.x) && /* false: rect2 is wholly to the right */
|
|
|
|
(rect1->pt1.y <= rect2->pt2.y) && /* false: rect1 is wholly below rect2 */
|
|
|
|
(rect2->pt1.y <= rect1->pt2.y); /* false: rect2 is wholly below rect1 */
|
2008-11-28 00:31:37 +01:00
|
|
|
}
|