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[hb-info] Add --get-metric

This commit is contained in:
Behdad Esfahbod 2023-01-20 09:57:28 -07:00
parent ba4f5e9f22
commit 2a8df82aca
1 changed files with 26 additions and 5 deletions
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31
util/hb-info.cc
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@ -39,10 +39,10 @@ struct info_t
GOptionEntry misc_entries[] =
{
{"direction", 0, 0, G_OPTION_ARG_STRING, &this->direction_str, "Set direction (default: ltr)", "ltr/rtl/ttb/btt"},
{"script", 0, 0, G_OPTION_ARG_STRING, &this->script_str, "Set script (default: none)", "ISO-15924 tag, eg. 'Latn'"},
{"language", 0, 0, G_OPTION_ARG_STRING, &this->language_str, "Set language (default: $LANG)", "BCP 47 tag, eg. 'en'"},
{"ot-script", 0, 0, G_OPTION_ARG_STRING, &this->ot_script_str, "Set OpenType script tag (default: none)","tag, eg. 'latn'"},
{"ot-language", 0, 0, G_OPTION_ARG_STRING, &this->ot_language_str, "Set OpenType language tag (default: none)", "tag, eg. 'ENG'"},
{"script", 0, 0, G_OPTION_ARG_STRING, &this->script_str, "Set script (default: none)", "ISO-15924 tag; eg. 'Latn'"},
{"language", 0, 0, G_OPTION_ARG_STRING, &this->language_str, "Set language (default: $LANG)", "BCP 47 tag; eg. 'en'"},
{"ot-script", 0, 0, G_OPTION_ARG_STRING, &this->ot_script_str, "Set OpenType script tag (default: none)","tag; eg. 'latn'"},
{"ot-language", 0, 0, G_OPTION_ARG_STRING, &this->ot_language_str, "Set OpenType language tag (default: none)", "tag; eg. 'ENG'"},
{nullptr}
};
@ -69,6 +69,8 @@ struct info_t
{"show-glyph-count",0, 0, G_OPTION_ARG_NONE, &this->show_glyph_count, "Show glyph count", nullptr},
{"show-extents", 0, 0, G_OPTION_ARG_NONE, &this->show_extents, "Show extents", nullptr},
{"get-metric", 0, 0, G_OPTION_ARG_STRING_ARRAY,&this->get_metric, "Get metric", "metric tag; eg. 'hasc'"},
{"list-all", 0, 0, G_OPTION_ARG_NONE, &this->list_all, "List all long information", nullptr},
{"list-names", 0, 0, G_OPTION_ARG_NONE, &this->list_names, "List names", nullptr},
{"list-tables", 'l', 0, G_OPTION_ARG_NONE, &this->list_tables, "List tables", nullptr},
@ -80,7 +82,7 @@ struct info_t
{"list-variations",0, 0, G_OPTION_ARG_NONE, &this->list_variations, "List variations", nullptr},
#endif
{"dump-table", 0, 0, G_OPTION_ARG_STRING, &this->dump_table, "Dump font table", "TABLE-TAG"},
{"dump-table", 0, 0, G_OPTION_ARG_STRING, &this->dump_table, "Dump font table", "table tag; eg. 'cmap'"},
{nullptr}
};
@ -122,6 +124,8 @@ struct info_t
hb_bool_t show_glyph_count = false;
hb_bool_t show_extents = false;
char **get_metric = nullptr;
hb_bool_t list_all = false;
hb_bool_t list_names = false;
hb_bool_t list_tables = false;
@ -199,6 +203,8 @@ struct info_t
if (show_glyph_count) _show_glyph_count ();
if (show_extents) _show_extents ();
if (get_metric) _get_metric ();
if (list_names) _list_names ();
if (list_tables) _list_tables ();
if (list_unicodes) _list_unicodes ();
@ -318,6 +324,21 @@ struct info_t
printf ("%d\n", extents.line_gap);
}
void _get_metric ()
{
for (char **p = get_metric; *p; p++)
{
hb_tag_t tag = hb_tag_from_string (*p, -1);
hb_position_t position;
hb_ot_metrics_get_position_with_fallback (font,
(hb_ot_metrics_tag_t) tag,
&position);
if (verbose)
printf ("%c%c%c%c: ", HB_UNTAG (tag));
printf ("%d\n", position);
}
}
void _list_names ()
{
if (verbose)