system/lib/lcd/gui/Core/GUI_RectsIntersect.c

54 lines
1.7 KiB
C

/*
*********************************************************************************************************
* uC/GUI
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* µC/GUI is protected by international copyright laws. Knowledge of the
* source code may not be used to write a similar product. This file may
* only be used in accordance with a license and should not be redistributed
* in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File : GUI_RectsIntersect.C
Purpose : Implementation of GUI_RectsIntersect
---------------------------END-OF-HEADER------------------------------
*/
#include <stddef.h> /* needed for definition of NULL */
#include "GUI_Protected.h"
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_RectsIntersect
*
* Purpose:
* Check if rectangle do intersect.
*
* Return value:
* 0 if they do not.
* 1 if they do.
*/
int GUI_RectsIntersect(const GUI_RECT* pr0, const GUI_RECT* pr1) {
if (pr0->y0 <= pr1->y1) {
if (pr1->y0 <= pr0->y1) {
if (pr0->x0 <= pr1->x1) {
if (pr1->x0 <= pr0->x1) {
return 1;
}
}
}
}
return 0;
}
/*************************** End of file ****************************/