1 /**
2 ** propwdt.c ---- calculate the width of a string using a proportional font
3 **
4 ** Copyright (c) 1995 Csaba Biegl, 820 Stirrup Dr, Nashville, TN 37221
5 ** [e-mail: csaba@vuse.vanderbilt.edu]
6 **
7 ** This file is part of the GRX graphics library.
8 **
9 ** The GRX graphics library is free software; you can redistribute it
10 ** and/or modify it under some conditions; see the "copying.grx" file
11 ** for details.
12 **
13 ** This library is distributed in the hope that it will be useful,
14 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 **
17 **/
18
19 #include "libgrx.h"
20
GrProportionalTextWidth(const GrFont * font,const void * text,int len,int type)21 int GrProportionalTextWidth(const GrFont *font,const void *text,int len,int type)
22 {
23 char *txp = (char *)text;
24 int wdt = 0;
25 while(--len >= 0) {
26 wdt += GrFontCharWidth(font,GR_TEXTSTR_CODE(txp,type));
27 txp += GR_TEXTCHR_SIZE(type);
28 }
29 return(wdt);
30 }
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