Kill the last GtkOptionMenu instances.

Wrote a new widget (ECharsetComboBox) to replace e-charset-picker.c.
The widget provides a "charset" string property that allows us to bind
to GConf keys (via EShellSettings).  Moved e_charset_add_radio_actions()
to e-util/e-charset.c.  Updated Glade files, #include lines, etc.

1 files changed, 255 insertions, 0 deletions

diff --git a/e-util/e-charset.c b/e-util/e-charset.c
new file mode 100644
index 0000000000..329f513ec7
--- /dev/null
+++ b/e-util/e-charset.c
@@ -0,0 +1,255 @@
+/*
+ * 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) version 3.
+ *
+ * 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 the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-charset.h"
+
+#include <string.h>
+#include <iconv.h>
+
+#include <glib/gi18n-lib.h>
+
+typedef enum {
+	E_CHARSET_UNKNOWN,
+	E_CHARSET_ARABIC,
+	E_CHARSET_BALTIC,
+	E_CHARSET_CENTRAL_EUROPEAN,
+	E_CHARSET_CHINESE,
+	E_CHARSET_CYRILLIC,
+	E_CHARSET_GREEK,
+	E_CHARSET_HEBREW,
+	E_CHARSET_JAPANESE,
+	E_CHARSET_KOREAN,
+	E_CHARSET_THAI,
+	E_CHARSET_TURKISH,
+	E_CHARSET_UNICODE,
+	E_CHARSET_WESTERN_EUROPEAN,
+	E_CHARSET_WESTERN_EUROPEAN_NEW
+} ECharsetClass;
+
+static const gchar *classnames[] = {
+	N_("Unknown"),
+	N_("Arabic"),
+	N_("Baltic"),
+	N_("Central European"),
+	N_("Chinese"),
+	N_("Cyrillic"),
+	N_("Greek"),
+	N_("Hebrew"),
+	N_("Japanese"),
+	N_("Korean"),
+	N_("Thai"),
+	N_("Turkish"),
+	N_("Unicode"),
+	N_("Western European"),
+	N_("Western European, New"),
+};
+
+typedef struct {
+	const gchar *name;
+	ECharsetClass class;
+	const gchar *subclass;
+} ECharset;
+
+/* This list is based on what other mailers/browsers support. There's
+ * not a lot of point in using, say, ISO-8859-3, if anything that can
+ * read that can read UTF8 too.
+ */
+/* To Translators: Character set "Logical Hebrew" */
+static ECharset charsets[] = {
+	{ "ISO-8859-6", E_CHARSET_ARABIC, NULL },
+	{ "ISO-8859-13", E_CHARSET_BALTIC, NULL },
+	{ "ISO-8859-4", E_CHARSET_BALTIC, NULL },
+	{ "ISO-8859-2", E_CHARSET_CENTRAL_EUROPEAN, NULL },
+	{ "Big5", E_CHARSET_CHINESE, N_("Traditional") },
+	{ "BIG5HKSCS", E_CHARSET_CHINESE, N_("Traditional") },
+	{ "EUC-TW", E_CHARSET_CHINESE, N_("Traditional") },
+	{ "GB18030", E_CHARSET_CHINESE, N_("Simplified") },
+	{ "GB2312", E_CHARSET_CHINESE, N_("Simplified") },
+	{ "HZ", E_CHARSET_CHINESE, N_("Simplified") },
+	{ "ISO-2022-CN", E_CHARSET_CHINESE, N_("Simplified") },
+	{ "KOI8-R", E_CHARSET_CYRILLIC, NULL },
+	{ "Windows-1251", E_CHARSET_CYRILLIC, NULL },
+	{ "KOI8-U", E_CHARSET_CYRILLIC, N_("Ukrainian") },
+	{ "ISO-8859-5", E_CHARSET_CYRILLIC, NULL },
+	{ "ISO-8859-7", E_CHARSET_GREEK, NULL },
+	{ "ISO-8859-8", E_CHARSET_HEBREW, N_("Visual") },
+	{ "ISO-2022-JP", E_CHARSET_JAPANESE, NULL },
+	{ "EUC-JP", E_CHARSET_JAPANESE, NULL },
+	{ "Shift_JIS", E_CHARSET_JAPANESE, NULL },
+	{ "EUC-KR", E_CHARSET_KOREAN, NULL },
+	{ "TIS-620", E_CHARSET_THAI, NULL },
+	{ "ISO-8859-9", E_CHARSET_TURKISH, NULL },
+	{ "UTF-8", E_CHARSET_UNICODE, NULL },
+	{ "UTF-7", E_CHARSET_UNICODE, NULL },
+	{ "ISO-8859-1", E_CHARSET_WESTERN_EUROPEAN, NULL },
+	{ "ISO-8859-15", E_CHARSET_WESTERN_EUROPEAN_NEW, NULL },
+};
+
+/**
+ * e_charset_add_radio_actions:
+ * @action_group: a #GtkActionGroup
+ * @action_prefix: a prefix for action names, or %NULL
+ * @default_charset: the default character set, or %NULL to use the
+ *                   locale character set
+ * @callback: a callback function for actions in the group, or %NULL
+ * @user_data: user data to be passed to @callback, or %NULL
+ *
+ * Adds a set of #GtkRadioActions for available character sets to
+ * @action_group.  The @default_charset (or locale character set if
+ * @default_charset is %NULL) will be added first, and selected by
+ * default (except that ISO-8859-1 will always be used instead of
+ * US-ASCII).  Any other character sets of the same language class as
+ * the default will be added next, followed by the remaining character
+ * sets.
+ **/
+GSList *
+e_charset_add_radio_actions (GtkActionGroup *action_group,
+                             const gchar *action_prefix,
+                             const gchar *default_charset,
+                             GCallback callback,
+                             gpointer user_data)
+{
+	GtkRadioAction *action = NULL;
+	GSList *group = NULL;
+	const gchar *locale_charset;
+	gint def, ii;
+
+	g_return_val_if_fail (GTK_IS_ACTION_GROUP (action_group), NULL);
+
+	if (action_prefix == NULL)
+		action_prefix = "";
+
+	g_get_charset (&locale_charset);
+	if (!g_ascii_strcasecmp (locale_charset, "US-ASCII"))
+		locale_charset = "ISO-8859-1";
+
+	if (default_charset == NULL)
+		default_charset = locale_charset;
+	for (def = 0; def < G_N_ELEMENTS (charsets); def++)
+		if (!g_ascii_strcasecmp (charsets[def].name, default_charset))
+			break;
+
+	for (ii = 0; ii < G_N_ELEMENTS (charsets); ii++) {
+		const gchar *charset_name;
+		gchar *action_name;
+		gchar *escaped_name;
+		gchar *charset_label;
+		gchar **str_array;
+
+		charset_name = charsets[ii].name;
+		action_name = g_strconcat (action_prefix, charset_name, NULL);
+
+		/* Escape underlines in the character set name so
+		 * they're not treated as GtkLabel mnemonics. */
+		str_array = g_strsplit (charset_name, "_", -1);
+		escaped_name = g_strjoinv ("__", str_array);
+		g_strfreev (str_array);
+
+		if (charsets[ii].subclass != NULL)
+			charset_label = g_strdup_printf (
+				"%s, %s (%s)",
+				gettext (classnames[charsets[ii].class]),
+				gettext (charsets[ii].subclass),
+				escaped_name);
+		else if (charsets[ii].class != E_CHARSET_UNKNOWN)
+			charset_label = g_strdup_printf (
+				"%s (%s)",
+				gettext (classnames[charsets[ii].class]),
+				escaped_name);
+		else
+			charset_label = g_strdup (escaped_name);
+
+		/* XXX Add a tooltip! */
+		action = gtk_radio_action_new (
+			action_name, charset_label, NULL, NULL, ii);
+
+		/* Character set name is static so no need to free it. */
+		g_object_set_data (
+			G_OBJECT (action), "charset",
+			(gpointer) charset_name);
+
+		gtk_radio_action_set_group (action, group);
+		group = gtk_radio_action_get_group (action);
+
+		if (callback != NULL)
+			g_signal_connect (
+				action, "changed", callback, user_data);
+
+		gtk_action_group_add_action (
+			action_group, GTK_ACTION (action));
+
+		g_object_unref (action);
+
+		g_free (action_name);
+		g_free (escaped_name);
+		g_free (charset_label);
+	}
+
+	if (def == G_N_ELEMENTS (charsets)) {
+		const gchar *charset_name;
+		gchar *action_name;
+		gchar *charset_label;
+		gchar **str_array;
+
+		charset_name = default_charset;
+		action_name = g_strconcat (action_prefix, charset_name, NULL);
+
+		/* Escape underlines in the character set name so
+		 * they're not treated as GtkLabel mnemonics. */
+		str_array = g_strsplit (charset_name, "_", -1);
+		charset_label = g_strjoinv ("__", str_array);
+		g_strfreev (str_array);
+
+		/* XXX Add a tooltip! */
+		action = gtk_radio_action_new (
+			action_name, charset_label, NULL, NULL, def);
+
+		/* Character set name is static so no need to free it. */
+		g_object_set_data (
+			G_OBJECT (action), "charset",
+			(gpointer) charset_name);
+
+		gtk_radio_action_set_group (action, group);
+		group = gtk_radio_action_get_group (action);
+
+		if (callback != NULL)
+			g_signal_connect (
+				action, "changed", callback, user_data);
+
+		gtk_action_group_add_action (
+			action_group, GTK_ACTION (action));
+
+		g_object_unref (action);
+
+		g_free (action_name);
+		g_free (charset_label);
+	}
+
+	/* Any of the actions in the action group will do. */
+	if (action != NULL)
+		gtk_radio_action_set_current_value (action, def);
+
+	return group;
+}