/*

 * Copyright © 2011,2012  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

 */

#include "options.hh"

#ifndef HB_MAIN_FONT_TEXT_HH

#define HB_MAIN_FONT_TEXT_HH

/* main() body for utilities taking font and processing text.*/

static char *

locale_to_utf8 (char *s)

{

  char *t;

  GError *error = NULL;

  t = g_locale_to_utf8 (s, -1, NULL, NULL, &error);

  if (!t)

  {

     fail (true, "Failed converting text to UTF-8");

  }

  return t;

}

template <typename consumer_t, int default_font_size, int subpixel_bits>

struct main_font_text_t

{

  main_font_text_t (void)

		  : options ("[FONT-FILE] [TEXT]"),

		    font_opts (&options, default_font_size, subpixel_bits),

		    input (&options),

		    consumer (&options) {}

  int

  main (int argc, char **argv)

  {

    options.parse (&argc, &argv);

    argc--, argv++;

    if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++;

    if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++;

    if (argc)

      fail (true, "Too many arguments on the command line");

    if (!font_opts.font_file)

      options.usage ();

    if (!input.text && !input.text_file)

      input.text_file = g_strdup ("-");

    hb_buffer_t *buffer = hb_buffer_create ();

    consumer.init (buffer, &font_opts);

    hb_buffer_destroy (buffer);

    unsigned int text_len;

    const char *text;

    while ((text = input.get_line (&text_len)))

      consumer.consume_line (text, text_len, input.text_before, input.text_after);

    consumer.finish (&font_opts);

    return consumer.failed ? 1 : 0;

  }

  protected:

  option_parser_t options;

  font_options_t font_opts;

  text_options_t input;

  consumer_t consumer;

};

#endif