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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/kpathsea/tex-glyph.h
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
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+/* tex-glyph.h: look for a TeX glyph font (GF or PK).
+
+ Copyright 1999, 2005 Olaf Weber.
+ Copyright 1993 Karl Berry.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+
+#ifndef KPATHSEA_TEX_GLYPH_H
+#define KPATHSEA_TEX_GLYPH_H
+
+#include <kpathsea/tex-file.h>
+
+
+/* This type describes the origination of a glyph font. */
+
+typedef enum
+{
+ kpse_glyph_source_normal, /* the searched-for font: already existed */
+ kpse_glyph_source_alias, /* : was an alias for an existing file */
+ kpse_glyph_source_maketex, /* : was created on the fly */
+ kpse_glyph_source_fallback /* : wasn't found, but the fallback font was */
+} kpse_glyph_source_type;
+
+
+typedef struct
+{
+ string name; /* font name found */
+ unsigned dpi; /* size found, for glyphs */
+ kpse_file_format_type format; /* glyph format found */
+ kpse_glyph_source_type source; /* where we found it */
+} kpse_glyph_file_type;
+
+#define KPSE_GLYPH_FILE_NAME(f) ((f).name)
+#define KPSE_GLYPH_FILE_DPI(f) ((f).dpi)
+#define KPSE_GLYPH_FILE_FORMAT(f) ((f).format)
+#define KPSE_GLYPH_FILE_SOURCE(f) ((f).source)
+
+
+/* Search first for the font named FONT_NAME at resolution DPI in the
+ glyph format FORMAT (see `try_size' for details of format searching).
+ Then try resolutions within KPSE_BITMAP_TOLERANCE of DPI. Then try
+ the resolutions in `kpse_fallback_sizes', then within the tolerance
+ of each of those. Then if FONT_NAME is an alias defined in a
+ texfonts.map do all the above for its real name. Then try the above
+ for kpse_fallback_name. Then fail. Return either the filename
+ found, or NULL. Also return information about the file found in
+ *GLYPH_FILE. */
+extern KPSEDLL string kpse_find_glyph P4H(const_string font_name, unsigned dpi,
+ kpse_file_format_type format,
+ kpse_glyph_file_type *glyph_file);
+
+/* Look for a specific format only. */
+#define kpse_find_pk(font_name, dpi, glyph_file) \
+ kpse_find_glyph (font_name, dpi, kpse_pk_format, glyph_file)
+#define kpse_find_gf(font_name, dpi, glyph_file) \
+ kpse_find_glyph (font_name, dpi, kpse_gf_format, glyph_file)
+
+
+/* Defines how far away a pixel file can be found from its stated size.
+ The DVI standard says any resolution within 0.2% of the stated size
+ is ok, but we are more forgiving. */
+#define KPSE_BITMAP_TOLERANCE(r) ((r) / 500.0 + 1)
+
+/* Check whether DPI1 is within KPSE_BITMAP_TOLERANCE of DPI2. */
+extern KPSEDLL boolean kpse_bitmap_tolerance P2H(double dpi1, double dpi2);
+
+#endif /* not KPATHSEA_TEX_GLYPH_H */