309 lines
8.2 KiB
C
309 lines
8.2 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2009-2010 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Written by: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <locale.h>
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#include <glib.h>
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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#include <fontconfig/fontconfig.h>
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#include "cc-common-language.h"
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#include "gdm-languages.h"
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static gint
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cc_common_language_sort_languages (GtkTreeModel *model,
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GtkTreeIter *a,
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GtkTreeIter *b,
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gpointer data)
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{
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char *ca, *cb;
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char *la, *lb;
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gboolean sa, ula;
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gboolean sb, ulb;
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gint result;
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gtk_tree_model_get (model, a,
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LOCALE_COL, &ca,
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DISPLAY_LOCALE_COL, &la,
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SEPARATOR_COL, &sa,
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USER_LANGUAGE, &ula,
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-1);
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gtk_tree_model_get (model, b,
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LOCALE_COL, &cb,
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DISPLAY_LOCALE_COL, &lb,
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SEPARATOR_COL, &sb,
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USER_LANGUAGE, &ulb,
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-1);
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/* Sort before and after separator first */
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if (sa && sb)
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return 0;
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if (sa)
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return ulb ? 1 : -1;
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if (sb)
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return ula ? -1 : 1;
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/* Sort user-languages first */
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if (ula != ulb) {
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if (ula)
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return -1;
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else
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return 1;
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}
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if (!ca)
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result = 1;
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else if (!cb)
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result = -1;
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else
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result = strcmp (la, lb);
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g_free (ca);
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g_free (cb);
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g_free (la);
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g_free (lb);
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return result;
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}
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gboolean
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cc_common_language_get_iter_for_language (GtkTreeModel *model,
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const gchar *lang,
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GtkTreeIter *iter)
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{
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char *l;
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char *name;
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char *language;
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gtk_tree_model_get_iter_first (model, iter);
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do {
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gtk_tree_model_get (model, iter, LOCALE_COL, &l, -1);
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if (g_strcmp0 (l, lang) == 0) {
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g_free (l);
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return TRUE;
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}
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g_free (l);
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} while (gtk_tree_model_iter_next (model, iter));
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name = gdm_normalize_language_name (lang);
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if (name != NULL) {
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language = gdm_get_language_from_name (name, NULL);
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gtk_list_store_append (GTK_LIST_STORE (model), iter);
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gtk_list_store_set (GTK_LIST_STORE (model), iter, LOCALE_COL, name, DISPLAY_LOCALE_COL, language, -1);
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g_free (name);
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g_free (language);
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return TRUE;
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}
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return FALSE;
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}
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gboolean
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cc_common_language_has_font (const gchar *locale)
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{
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const FcCharSet *charset;
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FcPattern *pattern;
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FcObjectSet *object_set;
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FcFontSet *font_set;
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gchar *language_code;
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gboolean is_displayable;
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is_displayable = FALSE;
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pattern = NULL;
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object_set = NULL;
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font_set = NULL;
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if (!gdm_parse_language_name (locale, &language_code, NULL, NULL, NULL))
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return FALSE;
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charset = FcLangGetCharSet ((FcChar8 *) language_code);
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if (!charset) {
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/* fontconfig does not know about this language */
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is_displayable = TRUE;
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}
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else {
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/* see if any fonts support rendering it */
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pattern = FcPatternBuild (NULL, FC_LANG, FcTypeString, language_code, NULL);
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if (pattern == NULL)
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goto done;
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object_set = FcObjectSetCreate ();
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if (object_set == NULL)
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goto done;
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font_set = FcFontList (NULL, pattern, object_set);
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if (font_set == NULL)
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goto done;
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is_displayable = (font_set->nfont > 0);
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}
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done:
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if (font_set != NULL)
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FcFontSetDestroy (font_set);
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if (object_set != NULL)
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FcObjectSetDestroy (object_set);
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if (pattern != NULL)
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FcPatternDestroy (pattern);
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g_free (language_code);
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return is_displayable;
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}
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void
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cc_common_language_add_available_languages (GtkListStore *store,
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GHashTable *user_langs)
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{
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char **languages;
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int i;
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char *name;
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char *language;
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GtkTreeIter iter;
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languages = gdm_get_all_language_names ();
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for (i = 0; languages[i] != NULL; i++) {
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name = gdm_normalize_language_name (languages[i]);
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if (g_hash_table_lookup (user_langs, name) != NULL) {
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g_free (name);
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continue;
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}
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if (!cc_common_language_has_font (languages[i])) {
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g_free (name);
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continue;
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}
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language = gdm_get_language_from_name (name, NULL);
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gtk_list_store_append (store, &iter);
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gtk_list_store_set (store, &iter, LOCALE_COL, name, DISPLAY_LOCALE_COL, language, -1);
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g_free (name);
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g_free (language);
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}
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g_strfreev (languages);
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}
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gchar *
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cc_common_language_get_current_language (void)
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{
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gchar *language;
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const gchar *locale;
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locale = (const gchar *) setlocale (LC_MESSAGES, NULL);
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if (locale)
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language = gdm_normalize_language_name (locale);
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else
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language = NULL;
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return language;
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}
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static void
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languages_foreach_cb (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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GtkListStore *store = (GtkListStore *) user_data;
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const char *locale = (const char *) key;
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const char *display_locale = (const char *) value;
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GtkTreeIter iter;
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gtk_list_store_append (store, &iter);
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gtk_list_store_set (store, &iter,
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LOCALE_COL, locale,
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DISPLAY_LOCALE_COL, display_locale,
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SEPARATOR_COL, FALSE,
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USER_LANGUAGE, TRUE,
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-1);
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}
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static gboolean
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separator_func (GtkTreeModel *model,
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GtkTreeIter *iter,
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gpointer data)
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{
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gboolean is_sep;
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gtk_tree_model_get (model, iter,
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SEPARATOR_COL, &is_sep,
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-1);
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return is_sep;
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}
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void
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cc_common_language_setup_list (GtkWidget *treeview,
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GHashTable *initial)
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{
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GtkCellRenderer *cell;
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GtkTreeViewColumn *column;
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GtkListStore *store;
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cell = gtk_cell_renderer_text_new ();
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column = gtk_tree_view_column_new_with_attributes (NULL, cell, "text", DISPLAY_LOCALE_COL, NULL);
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gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
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store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
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gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store),
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cc_common_language_sort_languages, NULL, NULL);
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gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store),
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GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
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GTK_SORT_ASCENDING);
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gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (treeview),
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separator_func,
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NULL, NULL);
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gtk_tree_view_set_model (GTK_TREE_VIEW (treeview), GTK_TREE_MODEL (store));
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/* Add languages from the initial hashtable */
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g_hash_table_foreach (initial, (GHFunc) languages_foreach_cb, store);
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/* Add separator if we had any languages added */
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if (initial != NULL &&
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g_hash_table_size (initial) > 0) {
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GtkTreeIter iter;
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gtk_list_store_append (GTK_LIST_STORE (store), &iter);
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gtk_list_store_set (GTK_LIST_STORE (store), &iter,
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LOCALE_COL, NULL,
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DISPLAY_LOCALE_COL, "Don't show",
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SEPARATOR_COL, TRUE,
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USER_LANGUAGE, FALSE,
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-1);
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}
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}
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