gui_rectsintersect.c

MCB2300_ucgui_LCD320240.rar LPC2368的uc/gui的移植

/*
*********************************************************************************************************
*   											 uC/GUI
*   					 Universal graphic software for embedded applications
*
*   					(c) Copyright 2002, Micrium Inc., Weston, FL
*   					(c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*   		   礐/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 ****************************/