gtxtext.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 62 行

/****************************************************************************
*
*                            Open Watcom Project
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*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


#include "gdefn.h"


void _WCI86FAR _CGRAPH _gettextextent( short x, short y, char _WCI86FAR * str,
/*=============================*/ struct xycoord _WCI86FAR * concat,
                                  struct xycoord _WCI86FAR * extent )

/* This routine finds the four corners of the parallelogram surrounding the
   given text string.  It also returns the concatenation point, i.e. the
   point where the next character would logically be output. */

{
    short               i;

    if( !_GraphMode() ) {
        return;
    }
    x = _GetPhysX( x );
    y = _GetPhysY( y );
    _L1TXX( x, y, str, concat, extent );
    for( i = 0; i < 4; i++ ) {
        extent[ i ].xcoord = _GetLogX( extent[ i ].xcoord );
        extent[ i ].ycoord = _GetLogY( extent[ i ].ycoord );
    }
    concat->xcoord = _GetLogX( concat->xcoord );
    concat->ycoord = _GetLogY( concat->ycoord );
}

Entry( _GETTEXTEXTENT, _gettextextent ) // alternate entry-point