HarfBuzz text shaping engine
http://harfbuzz.github.io/
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114 lines
3.2 KiB
114 lines
3.2 KiB
/* |
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* Copyright © 2011,2012 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 "options.hh" |
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#ifndef HB_MAIN_FONT_TEXT_HH |
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#define HB_MAIN_FONT_TEXT_HH |
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/* main() body for utilities taking font and processing text.*/ |
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static char * |
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locale_to_utf8 (char *s) |
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{ |
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char *t; |
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GError *error = NULL; |
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t = g_locale_to_utf8 (s, -1, NULL, NULL, &error); |
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if (!t) |
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{ |
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fail (true, "Failed converting text to UTF-8"); |
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} |
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return t; |
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} |
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static hb_bool_t |
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message_func (hb_buffer_t *buffer, |
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hb_font_t *font, |
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const char *message, |
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void *user_data) |
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{ |
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fprintf (stderr, "HB: %s\n", message); |
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char buf[4096]; |
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hb_buffer_serialize_glyphs (buffer, 0, hb_buffer_get_length (buffer), |
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buf, sizeof (buf), NULL, |
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font, |
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HB_BUFFER_SERIALIZE_FORMAT_TEXT, |
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HB_BUFFER_SERIALIZE_FLAG_DEFAULT); |
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printf ("HB: buffer [%s]\n", buf); |
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return true; |
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} |
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template <typename consumer_t, int default_font_size, int subpixel_bits> |
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struct main_font_text_t |
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{ |
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main_font_text_t (void) |
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: options ("[FONT-FILE] [TEXT]"), |
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font_opts (&options, default_font_size, subpixel_bits), |
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input (&options), |
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consumer (&options) {} |
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int |
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main (int argc, char **argv) |
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{ |
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options.parse (&argc, &argv); |
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argc--, argv++; |
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if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++; |
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if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++; |
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if (argc) |
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fail (true, "Too many arguments on the command line"); |
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if (!font_opts.font_file) |
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options.usage (); |
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if (!input.text && !input.text_file) |
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input.text_file = g_strdup ("-"); |
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consumer.init (&font_opts); |
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hb_buffer_t *buffer = hb_buffer_create (); |
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if (debug) |
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hb_buffer_set_message_func (buffer, message_func, NULL, NULL); |
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unsigned int text_len; |
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const char *text; |
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while ((text = input.get_line (&text_len))) |
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consumer.consume_line (buffer, text, text_len, input.text_before, input.text_after); |
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hb_buffer_destroy (buffer); |
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consumer.finish (&font_opts); |
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return consumer.failed ? 1 : 0; |
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} |
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protected: |
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option_parser_t options; |
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font_options_t font_opts; |
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text_options_t input; |
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consumer_t consumer; |
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}; |
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#endif |
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