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62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
/*
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* \brief Font representation
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* \date 2005-10-24
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* \author Norman Feske
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*/
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/*
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* Copyright (C) 2005-2012 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__NITPICKER_GFX__FONT_H_
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#define _INCLUDE__NITPICKER_GFX__FONT_H_
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#include "nitpicker_types.h"
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class Font
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{
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private:
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typedef nitpicker_int32_t int32_t;
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public:
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unsigned char *img; /* font image */
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int img_w, img_h; /* size of font image */
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int32_t *wtab; /* width table */
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int32_t *otab; /* offset table */
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/**
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* Construct font from a TFF data block
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*/
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Font(const char *tff)
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{
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otab = (int32_t *)(tff);
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wtab = (int32_t *)(tff + 1024);
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img_w = *((int32_t *)(tff + 2048));
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img_h = *((int32_t *)(tff + 2052));
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img = (unsigned char *)(tff + 2056);
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}
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/**
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* Calculate width of string when printed with the font
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*/
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int str_w(const char *sstr)
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{
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const unsigned char *str = (const unsigned char *)sstr;
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int res = 0;
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for (; str && *str; str++) res += wtab[*str];
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return res;
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}
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/**
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* Calculate height of string when printed with the font
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*/
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int str_h(const char *str) { return img_h; }
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};
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#endif /* _INCLUDE__NITPICKER_GFX__FONT_H_ */
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