str22.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          */
/*                                                                       */
/*      STR22.c                                          1.9             */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      All                                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the mwTxtAlnH function.                       */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Giac Dinh, Accelerated Technology, Inc.                          */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      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"
#include "metfonts.h"


/* Procedure mwTxtAlnH() handles centered and right alignments for horizontal
   text drawing calls.  */
void mwTxtAlnH (char *TEXTSTR, int INDEX, int COUNT, int CHARSIZE)

{
	short oldLocX;
	short oldLocY;
	short Width;
	short Height;

	oldLocX = LocX;
	oldLocY = LocY;
	grafPort.pnLevel-- ;  /* Hide the pen */

/* Call drawing procedure to move pen position to end of string. */
					
	txtDrwIDV(TEXTSTR, INDEX, COUNT, CHARSIZE );
	
	grafPort.pnLevel++ ; /* Restore the pen */
	
	Width  = LocX - oldLocX;
	Height = LocY - oldLocY;

/* Adjust bgnX base on alignment   */
	if(grafPort.txAlign.X >= 1)
	{
		if(grafPort.txAlign.X == 1)
		{
			Width  = Width  >> 1;
			Height = Height >> 1;
		}
		
		LocX = oldLocX - Width;
		LocY = oldLocY - Height;
	}

/* Draw the aligned text */

	txtDrwIDV(TEXTSTR, INDEX, COUNT, CHARSIZE );
	return;
}