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xed/xed/xed-encodings-combo-box.c

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* xed-encodings-combo-box.c
* This file is part of xed
*
* Copyright (C) 2003-2005 - Paolo Maggi
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/*
* Modified by the xed Team, 2003-2005. See the AUTHORS file for a
* list of people on the xed Team.
* See the ChangeLog files for a list of changes.
*
* $Id: xed-encodings-combo-box.c 6112 2008-01-23 08:26:24Z sfre $
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xed-encodings-combo-box.h"
#include <glib/gi18n.h>
#include <xed/xed-encodings-dialog.h>
#include "xed-settings.h"
#include "xed-utils.h"
#define XED_ENCODINGS_COMBO_BOX_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), \
XED_TYPE_ENCODINGS_COMBO_BOX, \
XedEncodingsComboBoxPrivate))
struct _XedEncodingsComboBoxPrivate
{
GSettings *enc_settings;
GtkListStore *store;
glong changed_id;
guint activated_item;
guint save_mode : 1;
};
enum
{
NAME_COLUMN,
ENCODING_COLUMN,
ADD_COLUMN,
N_COLUMNS
};
/* Properties */
enum
{
PROP_0,
PROP_SAVE_MODE
};
G_DEFINE_TYPE(XedEncodingsComboBox, xed_encodings_combo_box, GTK_TYPE_COMBO_BOX)
static void update_menu (XedEncodingsComboBox *combo_box);
static void
xed_encodings_combo_box_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
XedEncodingsComboBox *combo;
combo = XED_ENCODINGS_COMBO_BOX (object);
switch (prop_id)
{
case PROP_SAVE_MODE:
combo->priv->save_mode = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
xed_encodings_combo_box_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
XedEncodingsComboBox *combo;
combo = XED_ENCODINGS_COMBO_BOX (object);
switch (prop_id)
{
case PROP_SAVE_MODE:
g_value_set_boolean (value, combo->priv->save_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
xed_encodings_combo_box_dispose (GObject *object)
{
XedEncodingsComboBox *combo = XED_ENCODINGS_COMBO_BOX (object);
if (combo->priv->store != NULL)
{
g_object_unref (combo->priv->store);
combo->priv->store = NULL;
}
G_OBJECT_CLASS (xed_encodings_combo_box_parent_class)->dispose (object);
}
static void
xed_encodings_combo_box_class_init (XedEncodingsComboBoxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = xed_encodings_combo_box_set_property;
object_class->get_property = xed_encodings_combo_box_get_property;
object_class->dispose = xed_encodings_combo_box_dispose;
g_object_class_install_property (object_class,
PROP_SAVE_MODE,
g_param_spec_boolean ("save-mode",
"Save Mode",
"Save Mode",
FALSE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_type_class_add_private (object_class, sizeof (XedEncodingsComboBoxPrivate));
}
static void
dialog_response_cb (GtkDialog *dialog,
gint response_id,
XedEncodingsComboBox *menu)
{
if (response_id == GTK_RESPONSE_OK)
{
update_menu (menu);
}
gtk_widget_destroy (GTK_WIDGET (dialog));
}
static void
add_or_remove (XedEncodingsComboBox *menu,
GtkTreeModel *model)
{
GtkTreeIter iter;
gboolean add_item = FALSE;
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (menu), &iter))
{
gtk_tree_model_get (model, &iter, ADD_COLUMN, &add_item, -1);
}
if (!add_item)
{
menu->priv->activated_item = gtk_combo_box_get_active (GTK_COMBO_BOX (menu));
}
else
{
GtkWidget *dialog;
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menu));
if (!gtk_widget_is_toplevel (toplevel))
{
toplevel = NULL;
}
g_signal_handler_block (menu, menu->priv->changed_id);
gtk_combo_box_set_active (GTK_COMBO_BOX (menu), menu->priv->activated_item);
g_signal_handler_unblock (menu, menu->priv->changed_id);
dialog = xed_encodings_dialog_new();
if (toplevel != NULL)
{
GtkWindowGroup *wg;
gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (toplevel));
wg = gtk_window_get_group (GTK_WINDOW (toplevel));
if (wg == NULL)
{
wg = gtk_window_group_new ();
gtk_window_group_add_window (wg, GTK_WINDOW (toplevel));
}
gtk_window_group_add_window (wg, GTK_WINDOW (dialog));
}
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
g_signal_connect (dialog, "response", G_CALLBACK (dialog_response_cb), menu);
gtk_widget_show (dialog);
}
}
static gboolean
separator_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
gchar *str;
gboolean ret;
gtk_tree_model_get (model, iter, NAME_COLUMN, &str, -1);
ret = (str == NULL || *str == '\0');
g_free (str);
return ret;
}
static void
update_menu (XedEncodingsComboBox *menu)
{
GtkListStore *store;
GtkTreeIter iter;
GSList *encodings, *l;
gchar *str;
const GtkSourceEncoding *utf8_encoding;
const GtkSourceEncoding *current_encoding;
gchar **enc_strv;
store = menu->priv->store;
/* Unset the previous model */
g_signal_handler_block (menu, menu->priv->changed_id);
gtk_list_store_clear (store);
gtk_combo_box_set_model (GTK_COMBO_BOX (menu), NULL);
utf8_encoding = gtk_source_encoding_get_utf8 ();
current_encoding = gtk_source_encoding_get_current ();
if (!menu->priv->save_mode)
{
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, _("Automatically Detected"),
ENCODING_COLUMN, NULL,
ADD_COLUMN, FALSE,
-1);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, "",
ENCODING_COLUMN, NULL,
ADD_COLUMN, FALSE,
-1);
}
if (current_encoding != utf8_encoding)
{
str = gtk_source_encoding_to_string (utf8_encoding);
}
else
{
str = g_strdup_printf (_("Current Locale (%s)"), gtk_source_encoding_get_charset (utf8_encoding));
}
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, str,
ENCODING_COLUMN, utf8_encoding,
ADD_COLUMN, FALSE,
-1);
g_free (str);
if ((utf8_encoding != current_encoding) && (current_encoding != NULL))
{
str = g_strdup_printf (_("Current Locale (%s)"), gtk_source_encoding_get_charset (current_encoding));
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, str,
ENCODING_COLUMN, current_encoding,
ADD_COLUMN, FALSE,
-1);
g_free (str);
}
enc_strv = g_settings_get_strv (menu->priv->enc_settings, XED_SETTINGS_ENCODING_SHOWN_IN_MENU);
encodings = _xed_utils_encoding_strv_to_list ((const gchar * const *)enc_strv);
g_strfreev (enc_strv);
for (l = encodings; l != NULL; l = g_slist_next (l))
{
const GtkSourceEncoding *enc = l->data;
if ((enc != current_encoding) && (enc != utf8_encoding) && (enc != NULL))
{
str = gtk_source_encoding_to_string (enc);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, str,
ENCODING_COLUMN, enc,
ADD_COLUMN, FALSE,
-1);
g_free (str);
}
}
g_slist_free (encodings);
gtk_list_store_append (store, &iter);
/* Separator */
gtk_list_store_set (store, &iter,
NAME_COLUMN, "",
ENCODING_COLUMN, NULL,
ADD_COLUMN, FALSE,
-1);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
NAME_COLUMN, _("Add or Remove..."),
ENCODING_COLUMN, NULL,
ADD_COLUMN, TRUE,
-1);
/* set the model back */
gtk_combo_box_set_model (GTK_COMBO_BOX (menu), GTK_TREE_MODEL (menu->priv->store));
gtk_combo_box_set_active (GTK_COMBO_BOX (menu), 0);
g_signal_handler_unblock (menu, menu->priv->changed_id);
}
static void
xed_encodings_combo_box_init (XedEncodingsComboBox *menu)
{
GtkCellRenderer *text_renderer;
menu->priv = XED_ENCODINGS_COMBO_BOX_GET_PRIVATE (menu);
menu->priv->enc_settings = g_settings_new ("org.x.editor.preferences.encodings");
menu->priv->store = gtk_list_store_new (N_COLUMNS, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
/* Setup up the cells */
text_renderer = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (menu), text_renderer, TRUE);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (menu),
text_renderer,
"text",
NAME_COLUMN,
NULL);
gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (menu), separator_func, NULL, NULL);
menu->priv->changed_id = g_signal_connect (menu, "changed", G_CALLBACK (add_or_remove), menu->priv->store);
update_menu (menu);
}
/**
* xed_encodings_combo_box_new:
* @save_mode: whether the combo box is used for saving a content.
*
* Creates a new encodings combo box object. If @save_mode is %FALSE, it means
* that the combo box is used for loading a content (e.g. a file), so the row
* "Automatically Detected" is added. For saving a content, the encoding must be
* provided.
*
* Returns: a new #XedEncodingsComboBox object.
*/
GtkWidget *
xed_encodings_combo_box_new (gboolean save_mode)
{
return g_object_new (XED_TYPE_ENCODINGS_COMBO_BOX,
"save_mode", save_mode,
NULL);
}
/**
* xed_encodings_combo_box_get_selected_encoding:
* @menu: a #XedEncodingsComboBox.
*
* Returns: the selected #GtkSourceEncoding, or %NULL if the encoding should be
* auto-detected (only for loading mode, not for saving).
*/
const GtkSourceEncoding *
xed_encodings_combo_box_get_selected_encoding (XedEncodingsComboBox *menu)
{
GtkTreeIter iter;
g_return_val_if_fail (XED_IS_ENCODINGS_COMBO_BOX (menu), NULL);
if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (menu), &iter))
{
const GtkSourceEncoding *ret;
GtkTreeModel *model;
model = gtk_combo_box_get_model (GTK_COMBO_BOX (menu));
gtk_tree_model_get (model, &iter, ENCODING_COLUMN, &ret, -1);
return ret;
}
return NULL;
}
/**
* xed_encodings_combo_box_set_selected_encoding:
* @menu: a #XedEncodingsComboBox
* @encoding: the #GtkSourceEncoding
*
* Sets the selected encoding.
**/
void
xed_encodings_combo_box_set_selected_encoding (XedEncodingsComboBox *menu,
const GtkSourceEncoding *encoding)
{
GtkTreeIter iter;
GtkTreeModel *model;
gboolean b;
g_return_if_fail (XED_IS_ENCODINGS_COMBO_BOX (menu));
g_return_if_fail (GTK_IS_COMBO_BOX (menu));
model = gtk_combo_box_get_model (GTK_COMBO_BOX (menu));
b = gtk_tree_model_get_iter_first (model, &iter);
while (b)
{
const GtkSourceEncoding *enc;
gtk_tree_model_get (model, &iter, ENCODING_COLUMN, &enc, -1);
if (enc == encoding)
{
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (menu), &iter);
return;
}
b = gtk_tree_model_iter_next (model, &iter);
}
}
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