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78 lines
3.0 KiB
78 lines
3.0 KiB
/* tex-glyph.h: look for a TeX glyph font (GF or PK). |
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Copyright (C) 1993 Karl Berry. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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#ifndef KPATHSEA_TEX_GLYPH_H |
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#define KPATHSEA_TEX_GLYPH_H |
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#include <kpathsea/tex-file.h> |
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/* This type describes the origination of a glyph font. */ |
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typedef enum |
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{ |
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kpse_glyph_source_normal, /* the searched-for font: already existed */ |
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kpse_glyph_source_alias, /* : was an alias for an existing file */ |
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kpse_glyph_source_maketex, /* : was created on the fly */ |
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kpse_glyph_source_fallback /* : wasn't found, but the fallback font was */ |
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} kpse_glyph_source_type; |
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typedef struct |
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{ |
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string name; /* font name found */ |
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unsigned dpi; /* size found, for glyphs */ |
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kpse_file_format_type format; /* glyph format found */ |
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kpse_glyph_source_type source; /* where we found it */ |
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} kpse_glyph_file_type; |
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#define KPSE_GLYPH_FILE_NAME(f) ((f).name) |
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#define KPSE_GLYPH_FILE_DPI(f) ((f).dpi) |
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#define KPSE_GLYPH_FILE_FORMAT(f) ((f).format) |
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#define KPSE_GLYPH_FILE_SOURCE(f) ((f).source) |
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/* Search first for the font named FONT_NAME at resolution DPI in the |
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glyph format FORMAT (see `try_size' for details of format searching). |
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Then try resolutions within KPSE_BITMAP_TOLERANCE of DPI. Then try |
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the resolutions in `kpse_fallback_sizes', then within the tolerance |
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of each of those. Then if FONT_NAME is an alias defined in a |
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texfonts.map do all the above for its real name. Then try the above |
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for kpse_fallback_name. Then fail. Return either the filename |
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found, or NULL. Also return information about the file found in |
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*GLYPH_FILE. */ |
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extern string kpse_find_glyph P4H(const_string font_name, unsigned dpi, |
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kpse_file_format_type format, |
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kpse_glyph_file_type *glyph_file); |
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/* Look for a specific format only. */ |
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#define kpse_find_pk(font_name, dpi, glyph_file) \ |
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kpse_find_glyph (font_name, dpi, kpse_pk_format, glyph_file) |
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#define kpse_find_gf(font_name, dpi, glyph_file) \ |
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kpse_find_glyph (font_name, dpi, kpse_gf_format, glyph_file) |
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/* Defines how far away a pixel file can be found from its stated size. |
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The DVI standard says any resolution within 0.2% of the stated size |
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is ok, but we are more forgiving. */ |
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#define KPSE_BITMAP_TOLERANCE(r) ((r) / 500.0 + 1) |
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/* Check whether DPI1 is within KPSE_BITMAP_TOLERANCE of DPI2. */ |
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extern boolean kpse_bitmap_tolerance P2H(double dpi1, double dpi2); |
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#endif /* not KPATHSEA_TEX_GLYPH_H */
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