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language-names: Use Windows APIs to acquire language names
Instead of relying on the iso-codes package, use the native Windows NLS APIs to acquire the localized (translated) language names so that we do not need to incur an extra runtime dependency on Windows. It's not coverering 100% of the languages that we would like to support through this, but should cover much of the things that are required.
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@ -19,15 +19,80 @@
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#include "language-names.h"
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#ifdef G_OS_WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#else
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#ifndef ISO_CODES_PREFIX
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#define ISO_CODES_PREFIX "/usr"
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#endif
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#define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
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#define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
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#endif
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static GHashTable *language_map;
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#ifdef G_OS_WIN32
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/* if we are using native Windows use native Windows API for language names */
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static BOOL CALLBACK
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get_win32_all_locales_scripts (LPWSTR locale_w, DWORD flags, LPARAM param)
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{
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wchar_t *langname_w = NULL;
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wchar_t locale_abbrev_w[9];
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gchar *langname, *locale_abbrev, *locale, *p;
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gint i;
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const LCTYPE iso639_lctypes[] = { LOCALE_SISO639LANGNAME, LOCALE_SISO639LANGNAME2 };
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GHashTable *ht_scripts_langs = (GHashTable *) param;
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PangoLanguage *lang;
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gint langname_size, locale_abbrev_size;
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langname_size = GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, 0);
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if (langname_size == 0)
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return FALSE;
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langname_w = g_new0 (wchar_t, langname_size);
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if (langname_size == 0)
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return FALSE;
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GetLocaleInfoEx (locale_w, LOCALE_SLOCALIZEDDISPLAYNAME, langname_w, langname_size);
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langname = g_utf16_to_utf8 (langname_w, -1, NULL, NULL, NULL);
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locale = g_utf16_to_utf8 (locale_w, -1, NULL, NULL, NULL);
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p = strchr (locale, '-');
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lang = pango_language_from_string (locale);
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if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
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g_hash_table_insert (ht_scripts_langs, lang, langname);
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/*
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* Track 3+-letter ISO639-2/3 language codes as well (these have a max length of 9 including terminating NUL)
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* ISO639-2: iso639_lctypes[0] = LOCALE_SISO639LANGNAME
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* ISO639-3: iso639_lctypes[1] = LOCALE_SISO639LANGNAME2
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*/
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for (i = 0; i < 2; i++)
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{
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locale_abbrev_size = GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, 0);
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if (locale_abbrev_size > 0)
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{
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GetLocaleInfoEx (locale_w, iso639_lctypes[i], locale_abbrev_w, locale_abbrev_size);
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locale_abbrev = g_utf16_to_utf8 (locale_abbrev_w, -1, NULL, NULL, NULL);
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lang = pango_language_from_string (locale_abbrev);
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if (g_hash_table_lookup (ht_scripts_langs, lang) == NULL)
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g_hash_table_insert (ht_scripts_langs, lang, langname);
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g_free (locale_abbrev);
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}
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}
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g_free (locale);
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g_free (langname_w);
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return TRUE;
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}
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#else /* non-Windows */
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static char *
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get_first_item_in_semicolon_list (const char *list)
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{
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@ -232,6 +297,8 @@ languages_variant_init (const char *variant)
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g_free (buf);
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}
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#endif
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static void
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languages_init (void)
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{
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@ -239,8 +306,13 @@ languages_init (void)
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return;
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language_map = g_hash_table_new_full (NULL, NULL, NULL, g_free);
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#ifdef G_OS_WIN32
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g_return_if_fail (EnumSystemLocalesEx (&get_win32_all_locales_scripts, LOCALE_ALL, (LPARAM) language_map, NULL));
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#else
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languages_variant_init ("iso_639");
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languages_variant_init ("iso_639_3");
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#endif
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}
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const char *
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