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radio_helper.c
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1 /**********************************************************
2 *
3 * mp3splt-gtk -- utility based on mp3splt,
4 * for mp3/ogg splitting without decoding
5 *
6 * Copyright: (C) 2005-2013 Alexandru Munteanu
7 * Contact: m@ioalex.net
8 *
9 * http://mp3splt.sourceforge.net/
10 *
11 *********************************************************/
12
13 /**********************************************************
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version 2
18 * of the License, or (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
28 * USA.
29 *
30 *********************************************************/
31
32 /*!********************************************************
33 * \file
34 *
35 * this file contains the code for the radio button helpers.
36 ********************************************************/
37
38 #include "radio_helper.h"
39
40 static GtkRadioButton *rh_get_radio_from_value(GtkWidget *radio_button, gint value);
41
42 GtkWidget *rh_append_radio_to_vbox(GtkWidget *radio_button, const gchar *text,
43 gint value, void (*callback)(GtkToggleButton *, gpointer), gpointer callback_data,
44 GtkWidget *vbox)
45 {
46 GtkWidget *new_radio_button =
47 gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(radio_button), text);
48 gtk_box_pack_start(GTK_BOX(vbox), new_radio_button, FALSE, FALSE, 0);
49
50 if (callback)
51 {
52 g_signal_connect(GTK_TOGGLE_BUTTON(new_radio_button), "toggled", G_CALLBACK(callback),
53 callback_data);
54 }
55
56 g_object_set_data(G_OBJECT(new_radio_button), "value", GINT_TO_POINTER(value));
57
58 return new_radio_button;
59 }
60
61 gint rh_get_active_value(GtkWidget *radio_button)
62 {
63 gint active_value = -1;
64 GSList *radio_button_list = gtk_radio_button_get_group(GTK_RADIO_BUTTON(radio_button));
65
66 gint i = 0;
67 for(i = 0; i < g_slist_length(radio_button_list);i++)
68 {
69 GtkRadioButton *current_radio = (GtkRadioButton *) g_slist_nth_data(radio_button_list, i);
70 if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(current_radio)))
71 {
72 active_value = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(current_radio), "value"));
73 break;
74 }
75 }
76
77 return active_value;
78 }
79
80 void rh_set_radio_value(GtkWidget *radio_button, gint key_value, gboolean value)
81 {
82 GtkRadioButton *radio = rh_get_radio_from_value(radio_button, key_value);
83 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(radio), value);
84 }
85
86 static GtkRadioButton *rh_get_radio_from_value(GtkWidget *radio_button, gint value)
87 {
88 GSList *radio_button_list = gtk_radio_button_get_group(GTK_RADIO_BUTTON(radio_button));
89
90 gint i = 0;
91 gint list_length = g_slist_length(radio_button_list);
92 for(i = 0; i < list_length;i++)
93 {
94 GtkRadioButton *current_radio = (GtkRadioButton *) g_slist_nth_data(radio_button_list, i);
95 gint current_value = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(current_radio), "value"));
96 if (current_value == value)
97 {
98 return current_radio;
99 break;
100 }
101 }
102
103 return NULL;
104 }
105