HarfBuzz text shaping engine
http://harfbuzz.github.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
214 lines
7.5 KiB
214 lines
7.5 KiB
/* |
|
* 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
|
|
|