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/*
* Copyright © 2011 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 SHAPE_FORMAT_OPTIONS_HH
#define SHAPE_FORMAT_OPTIONS_HH
#include "options.hh"
struct shape_format_options_t
{
void add_options (option_parser_t *parser);
void serialize (hb_buffer_t *buffer,
hb_font_t *font,
hb_buffer_serialize_format_t format,
hb_buffer_serialize_flags_t flags,
GString *gs);
void serialize_line_no (unsigned int line_no,
GString *gs);
void serialize_buffer_of_text (hb_buffer_t *buffer,
unsigned int line_no,
const char *text,
unsigned int text_len,
hb_font_t *font,
GString *gs);
void serialize_message (unsigned int line_no,
const char *type,
const char *msg,
GString *gs);
void serialize_buffer_of_glyphs (hb_buffer_t *buffer,
unsigned int line_no,
const char *text,
unsigned int text_len,
hb_font_t *font,
hb_buffer_serialize_format_t output_format,
hb_buffer_serialize_flags_t format_flags,
GString *gs);
hb_bool_t show_glyph_names = true;
hb_bool_t show_positions = true;
hb_bool_t show_advances = true;
hb_bool_t show_clusters = true;
hb_bool_t show_text = false;
hb_bool_t show_unicode = false;
hb_bool_t show_line_num = false;
hb_bool_t show_extents = false;
hb_bool_t show_flags = false;
hb_bool_t trace = false;
};
static gboolean
parse_verbose (const char *name G_GNUC_UNUSED,
const char *arg G_GNUC_UNUSED,
gpointer data G_GNUC_UNUSED,
GError **error G_GNUC_UNUSED)
{
shape_format_options_t *format_opts = (shape_format_options_t *) data;
format_opts->show_text = format_opts->show_unicode = format_opts->show_line_num = true;
return true;
}
static gboolean
parse_ned (const char *name G_GNUC_UNUSED,
const char *arg G_GNUC_UNUSED,
gpointer data G_GNUC_UNUSED,
GError **error G_GNUC_UNUSED)
{
shape_format_options_t *format_opts = (shape_format_options_t *) data;
format_opts->show_clusters = format_opts->show_advances = false;
return true;
}
inline void
shape_format_options_t::serialize (hb_buffer_t *buffer,
hb_font_t *font,
hb_buffer_serialize_format_t output_format,
hb_buffer_serialize_flags_t flags,
GString *gs)
{
unsigned int num_glyphs = hb_buffer_get_length (buffer);
unsigned int start = 0;
while (start < num_glyphs)
{
char buf[32768];
unsigned int consumed;
start += hb_buffer_serialize (buffer, start, num_glyphs,
buf, sizeof (buf), &consumed,
font, output_format, flags);
if (!consumed)
break;
g_string_append (gs, buf);
}
}
inline void
shape_format_options_t::serialize_line_no (unsigned int line_no,
GString *gs)
{
if (show_line_num)
g_string_append_printf (gs, "%u: ", line_no);
}
inline void
shape_format_options_t::serialize_buffer_of_text (hb_buffer_t *buffer,
unsigned int line_no,
const char *text,
unsigned int text_len,
hb_font_t *font,
GString *gs)
{
if (show_text)
{
serialize_line_no (line_no, gs);
g_string_append_c (gs, '(');
g_string_append_len (gs, text, text_len);
g_string_append_c (gs, ')');
g_string_append_c (gs, '\n');
}
if (show_unicode)
{
serialize_line_no (line_no, gs);
serialize (buffer, font, HB_BUFFER_SERIALIZE_FORMAT_TEXT, HB_BUFFER_SERIALIZE_FLAG_DEFAULT, gs);
g_string_append_c (gs, '\n');
}
}
inline void
shape_format_options_t::serialize_message (unsigned int line_no,
const char *type,
const char *msg,
GString *gs)
{
serialize_line_no (line_no, gs);
g_string_append_printf (gs, "%s: %s", type, msg);
g_string_append_c (gs, '\n');
}
inline void
shape_format_options_t::serialize_buffer_of_glyphs (hb_buffer_t *buffer,
unsigned int line_no,
const char *text,
unsigned int text_len,
hb_font_t *font,
hb_buffer_serialize_format_t output_format,
hb_buffer_serialize_flags_t format_flags,
GString *gs)
{
serialize_line_no (line_no, gs);
serialize (buffer, font, output_format, format_flags, gs);
g_string_append_c (gs, '\n');
}
void
shape_format_options_t::add_options (option_parser_t *parser)
{
GOptionEntry entries[] =
{
{"show-text", 0, 0, G_OPTION_ARG_NONE, &this->show_text, "Prefix each line of output with its corresponding input text", nullptr},
{"show-unicode", 0, 0, G_OPTION_ARG_NONE, &this->show_unicode, "Prefix each line of output with its corresponding input codepoint(s)", nullptr},
{"show-line-num", 0, 0, G_OPTION_ARG_NONE, &this->show_line_num, "Prefix each line of output with its corresponding input line number", nullptr},
{"verbose", 'v', G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &parse_verbose, "Prefix each line of output with all of the above", nullptr},
{"no-glyph-names", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &this->show_glyph_names, "Output glyph indices instead of names", nullptr},
{"no-positions", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &this->show_positions, "Do not output glyph positions", nullptr},
{"no-advances", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &this->show_advances, "Do not output glyph advances", nullptr},
{"no-clusters", 0, G_OPTION_FLAG_REVERSE,
G_OPTION_ARG_NONE, &this->show_clusters, "Do not output cluster indices", nullptr},
{"show-extents", 0, 0, G_OPTION_ARG_NONE, &this->show_extents, "Output glyph extents", nullptr},
{"show-flags", 0, 0, G_OPTION_ARG_NONE, &this->show_flags, "Output glyph flags", nullptr},
{"ned", 'v', G_OPTION_FLAG_NO_ARG,
G_OPTION_ARG_CALLBACK, (gpointer) &parse_ned, "No Extra Data; Do not output clusters or advances", nullptr},
{"trace", 'V', 0, G_OPTION_ARG_NONE, &this->trace, "Output interim shaping results", nullptr},
{nullptr}
};
parser->add_group (entries,
"output-syntax",
"Output syntax:\n"
" text: [<glyph name or index>=<glyph cluster index within input>@<horizontal displacement>,<vertical displacement>+<horizontal advance>,<vertical advance>|...]\n"
" json: [{\"g\": <glyph name or index>, \"ax\": <horizontal advance>, \"ay\": <vertical advance>, \"dx\": <horizontal displacement>, \"dy\": <vertical displacement>, \"cl\": <glyph cluster index within input>}, ...]\n"
"\nOutput syntax options:",
"Options for the syntax of the output",
this);
}
#endif
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