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52 lines
2.4 KiB
C
52 lines
2.4 KiB
C
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/*====================================================================*
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- Copyright (C) 2001 Leptonica. All rights reserved.
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- This software is distributed in the hope that it will be
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- useful, but with NO WARRANTY OF ANY KIND.
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- No author or distributor accepts responsibility to anyone for the
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- consequences of using this software, or for whether it serves any
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- particular purpose or works at all, unless he or she says so in
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- writing. Everyone is granted permission to copy, modify and
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- redistribute this source code, for commercial or non-commercial
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- purposes, with the following restrictions: (1) the origin of this
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- source code must not be misrepresented; (2) modified versions must
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- be plainly marked as such; and (3) this notice may not be removed
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- or altered from any source or modified source distribution.
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*====================================================================*/
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#ifndef LEPTONICA_BMF_H
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#define LEPTONICA_BMF_H
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/*
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* bmf.h
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*
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* Simple data structure to hold bitmap fonts and related data
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*/
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/* Constants for deciding when text block is divided into paragraphs */
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enum {
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SPLIT_ON_LEADING_WHITE = 1, /* tab or space at beginning of line */
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SPLIT_ON_BLANK_LINE = 2, /* newline with optional white space */
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SPLIT_ON_BOTH = 3 /* leading white space or newline */
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};
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struct L_Bmf
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{
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struct Pixa *pixa; /* pixa of bitmaps for 93 characters */
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l_int32 size; /* font size (in points at 300 ppi) */
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char *directory; /* directory containing font bitmaps */
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l_int32 baseline1; /* baseline offset for ascii 33 - 57 */
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l_int32 baseline2; /* baseline offset for ascii 58 - 91 */
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l_int32 baseline3; /* baseline offset for ascii 93 - 126 */
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l_int32 lineheight; /* max height of line of chars */
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l_int32 kernwidth; /* pixel dist between char bitmaps */
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l_int32 spacewidth; /* pixel dist between word bitmaps */
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l_int32 vertlinesep; /* extra vertical space between text lines */
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l_int32 *fonttab; /* table mapping ascii --> font index */
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l_int32 *baselinetab; /* table mapping ascii --> baseline offset */
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l_int32 *widthtab; /* table mapping ascii --> char width */
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};
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typedef struct L_Bmf L_BMF;
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#endif /* LEPTONICA_BMF_H */
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