xypt7.c

nucleus 文件系统,内核和彩色图形系统,在小系统上非常好用

/*************************************************************************/
/*                                                                       */
/*         Copyright (c) 1997 - 1999 Accelerated Technology, Inc.        */
/*                                                                       */
/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the      */
/* subject matter of this material.  All manufacturing, reproduction,    */
/* use, and sales rights pertaining to this subject matter are governed  */
/* by the license agreement.  The recipient of this software implicitly  */
/* accepts the terms of the license.                                     */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                            VERSION          */
/*                                                                       */
/*      XYPT7.c                                          1.9             */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      All                                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the PtOnPoly function.		                 */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Giac Dinh, Accelerated Technology, Inc.                          */
/*                                                                       */
/* DATA STRUCTURES                                                       */
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/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
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/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
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/*      None                                                             */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         NAME            DATE                    REMARKS               */
/*                                                                       */
/*                                                                       */
/*************************************************************************/

#include "meta_wnd.h"
#include "metconst.h"    /* MetaWINDOW Constant & Stucture Definitions */
#include "metports.h"    /* MetaWINDOW Port & Bitmap Definitions */
#include "grafdata.h"
#include "metmacs3.h"


/*	Function PtOnPoly simply replaces the filler with mwPolyLine, 
	which detects whether there is a match or not. This allows
	Perfect coincidence with the drawing routine, cuz' the drawer 
	routine is actually used. */
int PtOnPoly ( point * TestPt , int POLYCNT , polyHead * POLYHDR,
			   point * POLYPTS, int PixWidx , int PixHgty       )
{
	void VectRestore(void);
	short FramePoly(int POLYCNT, polyHead *POLYHDR, point *POLYPTS);
	void VectSetup(void);
	void mwPolyLine(void);
	
	VectSetup();	
	
	lineSqPolyIDV = (long) mwPolyLine;	/* smart link square pen PolyLine */
	PtRslt = FramePoly( POLYCNT , POLYHDR , POLYPTS ) ;
	VectRestore();
	return(PtRslt) ;
}