55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
/****************************************************************************
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* libs/libnx/nxglib/nxglib_rectoverlap.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <nuttx/nx/nxglib.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxgl_rectoverlap
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*
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* Description:
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* Return true if the two rectangles overlap
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*
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****************************************************************************/
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bool nxgl_rectoverlap(FAR struct nxgl_rect_s *rect1,
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FAR struct nxgl_rect_s *rect2)
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{
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/* The neither is wholly above, below, right, or left of the other, then
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* the two rectangles overlap in some fashion.
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*/
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return (rect1->pt1.x <= rect2->pt2.x) && /* false: rect1 is wholly to the right */
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(rect2->pt1.x <= rect1->pt2.x) && /* false: rect2 is wholly to the right */
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(rect1->pt1.y <= rect2->pt2.y) && /* false: rect1 is wholly below rect2 */
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(rect2->pt1.y <= rect1->pt2.y); /* false: rect2 is wholly below rect1 */
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}
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