[utils] Add hb-fc-list
This is a tool that lists all fonts that can render a given string. It uses hb_shape() to do so, and as such is aware of HarfBuzz's normalizer.
This commit is contained in:
Behdad Esfahbod
parent
eb0bf3ae66
commit
fe97b65a54
19
configure.ac
19
configure.ac
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@ -235,6 +235,24 @@ AM_CONDITIONAL(HAVE_CAIRO_FT, $have_cairo_ft)
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dnl ==========================================================================
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dnl ==========================================================================
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AC_ARG_WITH(fontconfig,
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[AS_HELP_STRING([--with-fontconfig=@<:@yes/no/auto@:>@],
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[Use fontconfig @<:@default=auto@:>@])],,
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[with_fontconfig=auto])
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have_fontconfig=false
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if test "x$with_fontconfig" = "xyes" -o "x$with_fontconfig" = "xauto"; then
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PKG_CHECK_MODULES(FONTCONFIG, fontconfig, have_fontconfig=true, :)
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fi
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if test "x$with_fontconfig" = "xyes" -a "x$have_fontconfig" != "xtrue"; then
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AC_MSG_ERROR([fontconfig support requested but not found])
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fi
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if $have_fontconfig; then
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AC_DEFINE(HAVE_FONTCONFIG, 1, [Have fontconfig library])
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fi
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AM_CONDITIONAL(HAVE_FONTCONFIG, $have_fontconfig)
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dnl ==========================================================================
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AC_ARG_WITH(icu,
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AC_ARG_WITH(icu,
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[AS_HELP_STRING([--with-icu=@<:@yes/no/auto@:>@],
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[AS_HELP_STRING([--with-icu=@<:@yes/no/auto@:>@],
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[Use ICU @<:@default=auto@:>@])],,
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[Use ICU @<:@default=auto@:>@])],,
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@ -438,6 +456,7 @@ Font callbacks (the more the better):
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Tools used for command-line utilities:
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Tools used for command-line utilities:
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Cairo: ${have_cairo}
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Cairo: ${have_cairo}
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Fontconfig: ${have_fontconfig}
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Additional shapers (the more the better):
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Additional shapers (the more the better):
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Graphite2: ${have_graphite2}
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Graphite2: ${have_graphite2}
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@ -76,4 +76,19 @@ endif # HAVE_OT
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endif # HAVE_GLIB
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endif # HAVE_GLIB
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if HAVE_OT
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if HAVE_FONTCONFIG
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hb_fc_list_SOURCES = \
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hb-fc.cc \
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hb-fc.h \
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hb-fc-list.c \
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$(NULL)
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hb_fc_list_LDADD = \
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$(LDADD) \
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$(FONTCONFIG_LIBS) \
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$(NULL)
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bin_PROGRAMS += hb-fc-list
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endif # HAVE_FONTCONFIG
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endif # HAVE_OT
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-include $(top_srcdir)/git.mk
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-include $(top_srcdir)/git.mk
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@ -0,0 +1,222 @@
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/*
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* Copyright © 2002 Keith Packard
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* Copyright © 2014 Google, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the author(s) not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. The authors make no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#define HAVE_GETOPT_LONG 1 /* XXX */
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#include "hb-fc.h"
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#include <fontconfig/fontconfig.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#else
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#ifdef linux
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#define HAVE_GETOPT_LONG 1
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#endif
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#define HAVE_GETOPT 1
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#endif
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#ifndef HAVE_GETOPT
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#define HAVE_GETOPT 0
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#endif
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#ifndef HAVE_GETOPT_LONG
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#define HAVE_GETOPT_LONG 0
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#endif
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#if HAVE_GETOPT_LONG
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#undef _GNU_SOURCE
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#define _GNU_SOURCE
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#include <getopt.h>
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const struct option longopts[] = {
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{"verbose", 0, 0, 'v'},
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{"format", 1, 0, 'f'},
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{"quiet", 0, 0, 'q'},
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{"version", 0, 0, 'V'},
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{"help", 0, 0, 'h'},
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{NULL,0,0,0},
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};
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#else
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#if HAVE_GETOPT
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extern char *optarg;
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extern int optind, opterr, optopt;
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#endif
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#endif
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static void
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usage (char *program, int error)
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{
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FILE *file = error ? stderr : stdout;
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#if HAVE_GETOPT_LONG
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fprintf (file, "usage: %s [-vqVh] [-f FORMAT] [--verbose] [--format=FORMAT] [--quiet] [--version] [--help] text [pattern] {element ...} \n",
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program);
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#else
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fprintf (file, "usage: %s [-vqVh] [-f FORMAT] text [pattern] {element ...} \n",
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program);
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#endif
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fprintf (file, "List fonts matching [pattern] that can render [text]\n");
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fprintf (file, "\n");
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#if HAVE_GETOPT_LONG
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fprintf (file, " -v, --verbose display entire font pattern verbosely\n");
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fprintf (file, " -f, --format=FORMAT use the given output format\n");
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fprintf (file, " -q, --quiet suppress all normal output, exit 1 if no fonts matched\n");
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fprintf (file, " -V, --version display font config version and exit\n");
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fprintf (file, " -h, --help display this help and exit\n");
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#else
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fprintf (file, " -v (verbose) display entire font pattern verbosely\n");
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fprintf (file, " -f FORMAT (format) use the given output format\n");
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fprintf (file, " -q, (quiet) suppress all normal output, exit 1 if no fonts matched\n");
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fprintf (file, " -V (version) display HarfBuzz version and exit\n");
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fprintf (file, " -h (help) display this help and exit\n");
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#endif
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exit (error);
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}
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int
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main (int argc, char **argv)
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{
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int verbose = 0;
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int quiet = 0;
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const FcChar8 *format = NULL;
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int nfont = 0;
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int i;
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FcObjectSet *os = 0;
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FcFontSet *fs;
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FcPattern *pat;
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const char *text;
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#if HAVE_GETOPT_LONG || HAVE_GETOPT
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int c;
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#if HAVE_GETOPT_LONG
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while ((c = getopt_long (argc, argv, "vf:qVh", longopts, NULL)) != -1)
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#else
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while ((c = getopt (argc, argv, "vf:qVh")) != -1)
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#endif
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{
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switch (c) {
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case 'v':
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verbose = 1;
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break;
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case 'f':
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format = (FcChar8 *) strdup (optarg);
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break;
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case 'q':
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quiet = 1;
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break;
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case 'V':
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fprintf (stderr, "fontconfig version %d.%d.%d\n",
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FC_MAJOR, FC_MINOR, FC_REVISION);
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exit (0);
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case 'h':
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usage (argv[0], 0);
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default:
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usage (argv[0], 1);
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}
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}
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i = optind;
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#else
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i = 1;
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#endif
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if (!argv[i])
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usage (argv[0], 1);
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text = argv[i];
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i++;
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if (argv[i])
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{
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pat = FcNameParse ((FcChar8 *) argv[i]);
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if (!pat)
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{
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fputs ("Unable to parse the pattern\n", stderr);
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return 1;
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}
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while (argv[++i])
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{
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if (!os)
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os = FcObjectSetCreate ();
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FcObjectSetAdd (os, argv[i]);
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}
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}
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else
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pat = FcPatternCreate ();
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if (quiet && !os)
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os = FcObjectSetCreate ();
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if (!verbose && !format && !os)
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os = FcObjectSetBuild (FC_FAMILY, FC_STYLE, FC_FILE, (char *) 0);
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FcObjectSetAdd (os, FC_CHARSET);
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if (!format)
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format = (const FcChar8 *) "%{=fclist}\n";
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fs = FcFontList (0, pat, os);
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if (os)
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FcObjectSetDestroy (os);
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if (pat)
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FcPatternDestroy (pat);
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if (!quiet && fs)
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{
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int j;
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for (j = 0; j < fs->nfont; j++)
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{
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hb_font_t *font = hb_fc_font_create (fs->fonts[j]);
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hb_bool_t can_render = hb_fc_can_render (font, text);
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hb_font_destroy (font);
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if (!can_render)
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continue;
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FcPatternDel (fs->fonts[j], FC_CHARSET);
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if (verbose)
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{
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FcPatternPrint (fs->fonts[j]);
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}
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else
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{
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FcChar8 *s;
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s = FcPatternFormat (fs->fonts[j], format);
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if (s)
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{
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printf ("%s", s);
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FcStrFree (s);
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}
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}
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}
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}
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if (fs) {
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nfont = fs->nfont;
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FcFontSetDestroy (fs);
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}
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FcFini ();
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return quiet ? (nfont == 0 ? 1 : 0) : 0;
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}
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@ -0,0 +1,149 @@
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/*
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* Copyright © 2014 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Behdad Esfahbod
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "hb-fc.h"
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static hb_bool_t
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hb_fc_get_glyph (hb_font_t *font /*HB_UNUSED*/,
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void *font_data,
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hb_codepoint_t unicode,
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hb_codepoint_t variation_selector,
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hb_codepoint_t *glyph,
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void *user_data /*HB_UNUSED*/)
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{
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FcCharSet *cs = (FcCharSet *) font_data;
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if (variation_selector)
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{
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/* Fontconfig doesn't cache cmap-14 info. However:
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* 1. If the font maps the variation_selector, assume it's
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* supported,
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* 2. If the font doesn't map it, still say it's supported,
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* but return 0. This way, the caller will see the zero
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* and reject. If we return unsupported here, then the
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* variation selector will be hidden and ignored.
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*/
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if (FcCharSetHasChar (cs, unicode) &&
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FcCharSetHasChar (cs, variation_selector))
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{
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unsigned int var_num = 0;
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if (variation_selector - 0xFE00u < 16)
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var_num = variation_selector - 0xFE00 + 1;
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else if (variation_selector - 0xE0100u < (256 - 16))
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var_num = variation_selector - 0xE0100 + 17;
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*glyph = (var_num << 21) | unicode;
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}
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else
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{
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*glyph = 0;
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}
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return true;
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}
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*glyph = FcCharSetHasChar (cs, unicode) ? unicode : 0;
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return *glyph != 0;
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}
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static hb_font_funcs_t *
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_hb_fc_get_font_funcs (void)
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{
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static const hb_font_funcs_t *fc_ffuncs;
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const hb_font_funcs_t *ffuncs;
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if (!(ffuncs = fc_ffuncs))
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{
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hb_font_funcs_t *newfuncs = hb_font_funcs_create ();
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hb_font_funcs_set_glyph_func (newfuncs, hb_fc_get_glyph, NULL, NULL);
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/* XXX MT-unsafe */
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if (fc_ffuncs)
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hb_font_funcs_destroy (newfuncs);
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else
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fc_ffuncs = ffuncs = newfuncs;
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}
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return const_cast<hb_font_funcs_t *> (fc_ffuncs);
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}
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hb_font_t *
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hb_fc_font_create (FcPattern *fcfont)
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{
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static hb_face_t *face;
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hb_font_t *font;
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FcCharSet *cs;
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if (FcResultMatch != FcPatternGetCharSet (fcfont, FC_CHARSET, 0, &cs))
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return hb_font_get_empty ();
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||||||
|
if (!face) /* XXX MT-unsafe */
|
||||||
|
face = hb_face_create (hb_blob_get_empty (), 0);
|
||||||
|
|
||||||
|
font = hb_font_create (face);
|
||||||
|
|
||||||
|
hb_font_set_funcs (font,
|
||||||
|
_hb_fc_get_font_funcs (),
|
||||||
|
FcCharSetCopy (cs),
|
||||||
|
(hb_destroy_func_t) FcCharSetDestroy);
|
||||||
|
|
||||||
|
return font;
|
||||||
|
}
|
||||||
|
|
||||||
|
hb_bool_t
|
||||||
|
hb_fc_can_render (hb_font_t *font, const char *text)
|
||||||
|
{
|
||||||
|
static const char *ot[] = {"ot", NULL};
|
||||||
|
|
||||||
|
hb_buffer_t *buffer = hb_buffer_create ();
|
||||||
|
hb_buffer_add_utf8 (buffer, text, -1, 0, -1);
|
||||||
|
|
||||||
|
/* XXX Do we need this? I think Arabic and Hangul shapers are the
|
||||||
|
* only one that make any use of this. The Hangul case is not really
|
||||||
|
* needed, and for Arabic we'll miss a very narrow set of fonts.
|
||||||
|
* Might be better to force generic shaper perhaps. */
|
||||||
|
hb_buffer_guess_segment_properties (buffer);
|
||||||
|
|
||||||
|
if (!hb_shape_full (font, buffer, NULL, 0, ot))
|
||||||
|
abort (); /* hb-ot shaper not enabled? */
|
||||||
|
|
||||||
|
unsigned int len;
|
||||||
|
hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, &len);
|
||||||
|
for (unsigned int i = 0; i < len; i++)
|
||||||
|
{
|
||||||
|
if (!info[i].codepoint)
|
||||||
|
{
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,46 @@
|
||||||
|
/*
|
||||||
|
* Copyright © 2014 Google, Inc.
|
||||||
|
*
|
||||||
|
* This is part of HarfBuzz, a text shaping library.
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, without written agreement and without
|
||||||
|
* license or royalty fees, to use, copy, modify, and distribute this
|
||||||
|
* software and its documentation for any purpose, provided that the
|
||||||
|
* above copyright notice and the following two paragraphs appear in
|
||||||
|
* all copies of this software.
|
||||||
|
*
|
||||||
|
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
||||||
|
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
||||||
|
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
||||||
|
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
||||||
|
* DAMAGE.
|
||||||
|
*
|
||||||
|
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
||||||
|
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
||||||
|
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
||||||
|
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
||||||
|
*
|
||||||
|
* Google Author(s): Behdad Esfahbod
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef HB_FC_H
|
||||||
|
#define HB_FC_H
|
||||||
|
|
||||||
|
#include "hb.h"
|
||||||
|
|
||||||
|
#include <fontconfig/fontconfig.h>
|
||||||
|
|
||||||
|
HB_BEGIN_DECLS
|
||||||
|
|
||||||
|
|
||||||
|
hb_font_t *
|
||||||
|
hb_fc_font_create (FcPattern *font);
|
||||||
|
|
||||||
|
hb_bool_t
|
||||||
|
hb_fc_can_render (hb_font_t *font, const char *text);
|
||||||
|
|
||||||
|
|
||||||
|
HB_END_DECLS
|
||||||
|
|
||||||
|
#endif /* HB_FC_H */
|
||||||
Loading…
Reference in New Issue