diff options
Diffstat (limited to 'libempathy-gtk/totem-subtitle-encoding.c')
| -rw-r--r-- | libempathy-gtk/totem-subtitle-encoding.c | 585 |
1 files changed, 585 insertions, 0 deletions
diff --git a/libempathy-gtk/totem-subtitle-encoding.c b/libempathy-gtk/totem-subtitle-encoding.c new file mode 100644 index 000000000..e0eef082c --- /dev/null +++ b/libempathy-gtk/totem-subtitle-encoding.c @@ -0,0 +1,585 @@ +/* + * Copyright (C) 2001-2006 Bastien Nocera <hadess@hadess.net> + * + * encoding list copied from gnome-terminal/encoding.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * The Totem project hereby grant permission for non-gpl compatible GStreamer + * plugins to be used and distributed together with GStreamer and Totem. This + * permission are above and beyond the permissions granted by the GPL license + * Totem is covered by. + * + * Monday 7th February 2005: Christian Schaller: Add exception clause. + * See license_change file for details. + * + */ + +#include "config.h" +#include <glib/gi18n.h> +#include "totem-subtitle-encoding.h" +#include <string.h> + +typedef enum +{ + SUBTITLE_ENCODING_CURRENT_LOCALE, + + SUBTITLE_ENCODING_ISO_8859_6, + SUBTITLE_ENCODING_IBM_864, + SUBTITLE_ENCODING_MAC_ARABIC, + SUBTITLE_ENCODING_WINDOWS_1256, + + SUBTITLE_ENCODING_ARMSCII_8, + + SUBTITLE_ENCODING_ISO_8859_4, + SUBTITLE_ENCODING_ISO_8859_13, + SUBTITLE_ENCODING_WINDOWS_1257, + + SUBTITLE_ENCODING_ISO_8859_14, + + SUBTITLE_ENCODING_ISO_8859_2, + SUBTITLE_ENCODING_IBM_852, + SUBTITLE_ENCODING_MAC_CE, + SUBTITLE_ENCODING_WINDOWS_1250, + + SUBTITLE_ENCODING_GB18030, + SUBTITLE_ENCODING_GB2312, + SUBTITLE_ENCODING_GBK, + SUBTITLE_ENCODING_HZ, + + SUBTITLE_ENCODING_BIG5, + SUBTITLE_ENCODING_BIG5_HKSCS, + SUBTITLE_ENCODING_EUC_TW, + + SUBTITLE_ENCODING_MAC_CROATIAN, + + SUBTITLE_ENCODING_ISO_8859_5, + SUBTITLE_ENCODING_IBM_855, + SUBTITLE_ENCODING_ISO_IR_111, + SUBTITLE_ENCODING_KOI8_R, + SUBTITLE_ENCODING_MAC_CYRILLIC, + SUBTITLE_ENCODING_WINDOWS_1251, + + SUBTITLE_ENCODING_CP_866, + + SUBTITLE_ENCODING_MAC_UKRAINIAN, + SUBTITLE_ENCODING_KOI8_U, + + SUBTITLE_ENCODING_GEOSTD8, + + SUBTITLE_ENCODING_ISO_8859_7, + SUBTITLE_ENCODING_MAC_GREEK, + SUBTITLE_ENCODING_WINDOWS_1253, + + SUBTITLE_ENCODING_MAC_GUJARATI, + + SUBTITLE_ENCODING_MAC_GURMUKHI, + + SUBTITLE_ENCODING_ISO_8859_8_I, + SUBTITLE_ENCODING_IBM_862, + SUBTITLE_ENCODING_MAC_HEBREW, + SUBTITLE_ENCODING_WINDOWS_1255, + + SUBTITLE_ENCODING_ISO_8859_8, + + SUBTITLE_ENCODING_MAC_DEVANAGARI, + + SUBTITLE_ENCODING_MAC_ICELANDIC, + + SUBTITLE_ENCODING_EUC_JP, + SUBTITLE_ENCODING_ISO_2022_JP, + SUBTITLE_ENCODING_SHIFT_JIS, + + SUBTITLE_ENCODING_EUC_KR, + SUBTITLE_ENCODING_ISO_2022_KR, + SUBTITLE_ENCODING_JOHAB, + SUBTITLE_ENCODING_UHC, + + SUBTITLE_ENCODING_ISO_8859_10, + + SUBTITLE_ENCODING_MAC_FARSI, + + SUBTITLE_ENCODING_ISO_8859_16, + SUBTITLE_ENCODING_MAC_ROMANIAN, + + SUBTITLE_ENCODING_ISO_8859_3, + + SUBTITLE_ENCODING_TIS_620, + + SUBTITLE_ENCODING_ISO_8859_9, + SUBTITLE_ENCODING_IBM_857, + SUBTITLE_ENCODING_MAC_TURKISH, + SUBTITLE_ENCODING_WINDOWS_1254, + + SUBTITLE_ENCODING_UTF_7, + SUBTITLE_ENCODING_UTF_8, + SUBTITLE_ENCODING_UTF_16, + SUBTITLE_ENCODING_UCS_2, + SUBTITLE_ENCODING_UCS_4, + + SUBTITLE_ENCODING_ISO_8859_1, + SUBTITLE_ENCODING_ISO_8859_15, + SUBTITLE_ENCODING_IBM_850, + SUBTITLE_ENCODING_MAC_ROMAN, + SUBTITLE_ENCODING_WINDOWS_1252, + + SUBTITLE_ENCODING_TCVN, + SUBTITLE_ENCODING_VISCII, + SUBTITLE_ENCODING_WINDOWS_1258, + + SUBTITLE_ENCODING_LAST +} SubtitleEncodingIndex; + + +typedef struct +{ + int index; + gboolean valid; + char *charset; + char *name; +} SubtitleEncoding; + + +static SubtitleEncoding encodings[] = { + + {SUBTITLE_ENCODING_CURRENT_LOCALE, TRUE, + NULL, N_("Current Locale")}, + + {SUBTITLE_ENCODING_ISO_8859_6, FALSE, + "ISO-8859-6", N_("Arabic")}, + {SUBTITLE_ENCODING_IBM_864, FALSE, + "IBM864", N_("Arabic")}, + {SUBTITLE_ENCODING_MAC_ARABIC, FALSE, + "MAC_ARABIC", N_("Arabic")}, + {SUBTITLE_ENCODING_WINDOWS_1256, FALSE, + "WINDOWS-1256", N_("Arabic")}, + + {SUBTITLE_ENCODING_ARMSCII_8, FALSE, + "ARMSCII-8", N_("Armenian")}, + + {SUBTITLE_ENCODING_ISO_8859_4, FALSE, + "ISO-8859-4", N_("Baltic")}, + {SUBTITLE_ENCODING_ISO_8859_13, FALSE, + "ISO-8859-13", N_("Baltic")}, + {SUBTITLE_ENCODING_WINDOWS_1257, FALSE, + "WINDOWS-1257", N_("Baltic")}, + + {SUBTITLE_ENCODING_ISO_8859_14, FALSE, + "ISO-8859-14", N_("Celtic")}, + + {SUBTITLE_ENCODING_ISO_8859_2, FALSE, + "ISO-8859-2", N_("Central European")}, + {SUBTITLE_ENCODING_IBM_852, FALSE, + "IBM852", N_("Central European")}, + {SUBTITLE_ENCODING_MAC_CE, FALSE, + "MAC_CE", N_("Central European")}, + {SUBTITLE_ENCODING_WINDOWS_1250, FALSE, + "WINDOWS-1250", N_("Central European")}, + + {SUBTITLE_ENCODING_GB18030, FALSE, + "GB18030", N_("Chinese Simplified")}, + {SUBTITLE_ENCODING_GB2312, FALSE, + "GB2312", N_("Chinese Simplified")}, + {SUBTITLE_ENCODING_GBK, FALSE, + "GBK", N_("Chinese Simplified")}, + {SUBTITLE_ENCODING_HZ, FALSE, + "HZ", N_("Chinese Simplified")}, + + {SUBTITLE_ENCODING_BIG5, FALSE, + "BIG5", N_("Chinese Traditional")}, + {SUBTITLE_ENCODING_BIG5_HKSCS, FALSE, + "BIG5-HKSCS", N_("Chinese Traditional")}, + {SUBTITLE_ENCODING_EUC_TW, FALSE, + "EUC-TW", N_("Chinese Traditional")}, + + {SUBTITLE_ENCODING_MAC_CROATIAN, FALSE, + "MAC_CROATIAN", N_("Croatian")}, + + {SUBTITLE_ENCODING_ISO_8859_5, FALSE, + "ISO-8859-5", N_("Cyrillic")}, + {SUBTITLE_ENCODING_IBM_855, FALSE, + "IBM855", N_("Cyrillic")}, + {SUBTITLE_ENCODING_ISO_IR_111, FALSE, + "ISO-IR-111", N_("Cyrillic")}, + {SUBTITLE_ENCODING_KOI8_R, FALSE, + "KOI8-R", N_("Cyrillic")}, + {SUBTITLE_ENCODING_MAC_CYRILLIC, FALSE, + "MAC-CYRILLIC", N_("Cyrillic")}, + {SUBTITLE_ENCODING_WINDOWS_1251, FALSE, + "WINDOWS-1251", N_("Cyrillic")}, + + {SUBTITLE_ENCODING_CP_866, FALSE, + "CP866", N_("Cyrillic/Russian")}, + + {SUBTITLE_ENCODING_MAC_UKRAINIAN, FALSE, + "MAC_UKRAINIAN", N_("Cyrillic/Ukrainian")}, + {SUBTITLE_ENCODING_KOI8_U, FALSE, + "KOI8-U", N_("Cyrillic/Ukrainian")}, + + {SUBTITLE_ENCODING_GEOSTD8, FALSE, + "GEORGIAN-PS", N_("Georgian")}, + + {SUBTITLE_ENCODING_ISO_8859_7, FALSE, + "ISO-8859-7", N_("Greek")}, + {SUBTITLE_ENCODING_MAC_GREEK, FALSE, + "MAC_GREEK", N_("Greek")}, + {SUBTITLE_ENCODING_WINDOWS_1253, FALSE, + "WINDOWS-1253", N_("Greek")}, + + {SUBTITLE_ENCODING_MAC_GUJARATI, FALSE, + "MAC_GUJARATI", N_("Gujarati")}, + + {SUBTITLE_ENCODING_MAC_GURMUKHI, FALSE, + "MAC_GURMUKHI", N_("Gurmukhi")}, + + {SUBTITLE_ENCODING_ISO_8859_8_I, FALSE, + "ISO-8859-8-I", N_("Hebrew")}, + {SUBTITLE_ENCODING_IBM_862, FALSE, + "IBM862", N_("Hebrew")}, + {SUBTITLE_ENCODING_MAC_HEBREW, FALSE, + "MAC_HEBREW", N_("Hebrew")}, + {SUBTITLE_ENCODING_WINDOWS_1255, FALSE, + "WINDOWS-1255", N_("Hebrew")}, + + {SUBTITLE_ENCODING_ISO_8859_8, FALSE, + "ISO-8859-8", N_("Hebrew Visual")}, + + {SUBTITLE_ENCODING_MAC_DEVANAGARI, FALSE, + "MAC_DEVANAGARI", N_("Hindi")}, + + {SUBTITLE_ENCODING_MAC_ICELANDIC, FALSE, + "MAC_ICELANDIC", N_("Icelandic")}, + + {SUBTITLE_ENCODING_EUC_JP, FALSE, + "EUC-JP", N_("Japanese")}, + {SUBTITLE_ENCODING_ISO_2022_JP, FALSE, + "ISO2022JP", N_("Japanese")}, + {SUBTITLE_ENCODING_SHIFT_JIS, FALSE, + "SHIFT-JIS", N_("Japanese")}, + + {SUBTITLE_ENCODING_EUC_KR, FALSE, + "EUC-KR", N_("Korean")}, + {SUBTITLE_ENCODING_ISO_2022_KR, FALSE, + "ISO2022KR", N_("Korean")}, + {SUBTITLE_ENCODING_JOHAB, FALSE, + "JOHAB", N_("Korean")}, + {SUBTITLE_ENCODING_UHC, FALSE, + "UHC", N_("Korean")}, + + {SUBTITLE_ENCODING_ISO_8859_10, FALSE, + "ISO-8859-10", N_("Nordic")}, + + {SUBTITLE_ENCODING_MAC_FARSI, FALSE, + "MAC_FARSI", N_("Persian")}, + + {SUBTITLE_ENCODING_ISO_8859_16, FALSE, + "ISO-8859-16", N_("Romanian")}, + {SUBTITLE_ENCODING_MAC_ROMANIAN, FALSE, + "MAC_ROMANIAN", N_("Romanian")}, + + {SUBTITLE_ENCODING_ISO_8859_3, FALSE, + "ISO-8859-3", N_("South European")}, + + {SUBTITLE_ENCODING_TIS_620, FALSE, + "TIS-620", N_("Thai")}, + + {SUBTITLE_ENCODING_ISO_8859_9, FALSE, + "ISO-8859-9", N_("Turkish")}, + {SUBTITLE_ENCODING_IBM_857, FALSE, + "IBM857", N_("Turkish")}, + {SUBTITLE_ENCODING_MAC_TURKISH, FALSE, + "MAC_TURKISH", N_("Turkish")}, + {SUBTITLE_ENCODING_WINDOWS_1254, FALSE, + "WINDOWS-1254", N_("Turkish")}, + + {SUBTITLE_ENCODING_UTF_7, FALSE, + "UTF-7", N_("Unicode")}, + {SUBTITLE_ENCODING_UTF_8, FALSE, + "UTF-8", N_("Unicode")}, + {SUBTITLE_ENCODING_UTF_16, FALSE, + "UTF-16", N_("Unicode")}, + {SUBTITLE_ENCODING_UCS_2, FALSE, + "UCS-2", N_("Unicode")}, + {SUBTITLE_ENCODING_UCS_4, FALSE, + "UCS-4", N_("Unicode")}, + + {SUBTITLE_ENCODING_ISO_8859_1, FALSE, + "ISO-8859-1", N_("Western")}, + {SUBTITLE_ENCODING_ISO_8859_15, FALSE, + "ISO-8859-15", N_("Western")}, + {SUBTITLE_ENCODING_IBM_850, FALSE, + "IBM850", N_("Western")}, + {SUBTITLE_ENCODING_MAC_ROMAN, FALSE, + "MAC_ROMAN", N_("Western")}, + {SUBTITLE_ENCODING_WINDOWS_1252, FALSE, + "WINDOWS-1252", N_("Western")}, + + {SUBTITLE_ENCODING_TCVN, FALSE, + "TCVN", N_("Vietnamese")}, + {SUBTITLE_ENCODING_VISCII, FALSE, + "VISCII", N_("Vietnamese")}, + {SUBTITLE_ENCODING_WINDOWS_1258, FALSE, + "WINDOWS-1258", N_("Vietnamese")} +}; + +static const SubtitleEncoding * +find_encoding_by_charset (const char *charset) +{ + int i; + + i = 1; /* skip current locale */ + while (i < SUBTITLE_ENCODING_LAST) { + if (strcasecmp (charset, encodings[i].charset) == 0) + return &encodings[i]; + + ++i; + } + + if (strcasecmp (charset, + encodings[SUBTITLE_ENCODING_CURRENT_LOCALE].charset) == 0) + return &encodings[SUBTITLE_ENCODING_CURRENT_LOCALE]; + + return NULL; +} + +static void +subtitle_encoding_init (void) +{ + int i; + gsize bytes_read, bytes_written; + gchar *converted; + gchar ascii_sample[96]; + + g_get_charset ((const char **) + &encodings[SUBTITLE_ENCODING_CURRENT_LOCALE].charset); + + g_assert (G_N_ELEMENTS (encodings) == SUBTITLE_ENCODING_LAST); + + /* Initialize the sample text with all of the printing ASCII characters + * from space (32) to the tilde (126), 95 in all. */ + for (i = 0; i < (int) sizeof (ascii_sample); i++) + ascii_sample[i] = i + 32; + + ascii_sample[sizeof (ascii_sample) - 1] = '\0'; + + i = 0; + while (i < SUBTITLE_ENCODING_LAST) { + bytes_read = 0; + bytes_written = 0; + + g_assert (encodings[i].index == i); + + /* Translate the names */ + encodings[i].name = _(encodings[i].name); + + /* Test that the encoding is a proper superset of ASCII (which naive + * apps are going to use anyway) by attempting to validate the text + * using the current encoding. This also flushes out any encodings + * which the underlying GIConv implementation can't support. + */ + converted = g_convert (ascii_sample, sizeof (ascii_sample) - 1, + encodings[i].charset, encodings[i].charset, + &bytes_read, &bytes_written, NULL); + + /* The encoding is only valid if ASCII passes through cleanly. */ + if (i == SUBTITLE_ENCODING_CURRENT_LOCALE) + encodings[i].valid = TRUE; + else + encodings[i].valid = + (bytes_read == (sizeof (ascii_sample) - 1)) && + (converted != NULL) && (strcmp (converted, ascii_sample) == 0); + +#ifdef DEBUG_ENCODINGS + if (!encodings[i].valid) { + g_print ("Rejecting encoding %s as invalid:\n", encodings[i].charset); + g_print (" input \"%s\"\n", ascii_sample); + g_print (" output \"%s\"\n\n", converted ? converted : "(null)"); + } +#endif + + /* Discard the converted string. */ + g_free (converted); + + ++i; + } +} + +static int +subtitle_encoding_get_index (const char *charset) +{ + const SubtitleEncoding *e; + + e = find_encoding_by_charset (charset); + if (e != NULL) + return e->index; + else + return SUBTITLE_ENCODING_CURRENT_LOCALE; +} + +static const char * +subtitle_encoding_get_charset (int index) +{ + const SubtitleEncoding *e; + + if (index >= SUBTITLE_ENCODING_LAST) + e = &encodings[SUBTITLE_ENCODING_CURRENT_LOCALE]; + else if (index < SUBTITLE_ENCODING_CURRENT_LOCALE) + e = &encodings[SUBTITLE_ENCODING_CURRENT_LOCALE]; + else if (!encodings[index].valid) + e = &encodings[SUBTITLE_ENCODING_CURRENT_LOCALE]; + else + e = &encodings[index]; + return e->charset; +} + +enum +{ + INDEX_COL, + NAME_COL +}; + +static gint +compare (GtkTreeModel * model, GtkTreeIter * a, GtkTreeIter * b, gpointer data) +{ + gchar *str_a, *str_b; + gint result; + + gtk_tree_model_get (model, a, NAME_COL, &str_a, -1); + gtk_tree_model_get (model, b, NAME_COL, &str_b, -1); + + result = strcmp (str_a, str_b); + + g_free (str_a); + g_free (str_b); + + return result; +} + +static void +is_encoding_sensitive (GtkCellLayout * cell_layout, + GtkCellRenderer * cell, + GtkTreeModel * tree_model, GtkTreeIter * iter, gpointer data) +{ + + gboolean sensitive; + + sensitive = !gtk_tree_model_iter_has_child (tree_model, iter); + g_object_set (cell, "sensitive", sensitive, NULL); +} + +static GtkTreeModel * +subtitle_encoding_create_store (void) +{ + gchar *label; + gchar *lastlang = ""; + GtkTreeIter iter, iter2; + GtkTreeStore *store; + int i; + + store = gtk_tree_store_new (2, G_TYPE_INT, G_TYPE_STRING); + + for (i = 0; i < SUBTITLE_ENCODING_LAST; i++) { + if (encodings[i].valid) { + if (strcmp (lastlang, encodings[i].name)) { + lastlang = encodings[i].name; + gtk_tree_store_append (store, &iter, NULL); + gtk_tree_store_set (store, &iter, INDEX_COL, + -1, NAME_COL, lastlang, -1); + } + label = g_strdup_printf("%s (%s)", lastlang, encodings[i].charset); + gtk_tree_store_append (store, &iter2, &iter); + gtk_tree_store_set (store, &iter2, INDEX_COL, + encodings[i].index, NAME_COL, label, -1); + g_free(label); + } + } + gtk_tree_sortable_set_default_sort_func (GTK_TREE_SORTABLE (store), + compare, NULL, NULL); + gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (store), + NAME_COL, GTK_SORT_ASCENDING); + return GTK_TREE_MODEL (store); +} + +static void +subtitle_encoding_combo_render (GtkComboBox * combo) +{ + GtkCellRenderer *renderer; + + renderer = gtk_cell_renderer_text_new (); + gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), renderer, TRUE); + gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo), renderer, + "text", NAME_COL, NULL); + gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (combo), + renderer, is_encoding_sensitive, NULL, NULL); +} + +const char * +totem_subtitle_encoding_get_selected (GtkComboBox * combo) +{ + GtkTreeModel *model; + GtkTreeIter iter; + gint index = -1; + + model = gtk_combo_box_get_model (combo); + if (gtk_combo_box_get_active_iter (combo, &iter)) { + gtk_tree_model_get (model, &iter, INDEX_COL, &index, -1); + } + if (index == -1) + return NULL; + return subtitle_encoding_get_charset (index); +} + +void +totem_subtitle_encoding_set (GtkComboBox * combo, const char *encoding) +{ + GtkTreeModel *model; + GtkTreeIter iter, iter2; + gint index, i; + + g_return_if_fail (encoding != NULL); + + model = gtk_combo_box_get_model (combo); + index = subtitle_encoding_get_index (encoding); + gtk_tree_model_get_iter_first (model, &iter); + do { + if (!gtk_tree_model_iter_has_child (model, &iter)) + continue; + if (!gtk_tree_model_iter_children (model, &iter2, &iter)) + continue; + do { + gtk_tree_model_get (model, &iter2, INDEX_COL, &i, -1); + if (i == index) + break; + } while (gtk_tree_model_iter_next (model, &iter2)); + if (i == index) + break; + } while (gtk_tree_model_iter_next (model, &iter)); + gtk_combo_box_set_active_iter (combo, &iter2); +} + +void +totem_subtitle_encoding_init (GtkComboBox *combo) +{ + GtkTreeModel *model; + subtitle_encoding_init (); + model = subtitle_encoding_create_store (); + gtk_combo_box_set_model (combo, model); + g_object_unref (model); + subtitle_encoding_combo_render (combo); +} + +/* + * vim: sw=2 ts=8 cindent noai bs=2 + */ |