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1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <gtk/gtk.h> | |
23 | ||
24 | #include "vikradiogroup.h" | |
25 | ||
26 | static GObjectClass *parent_class; | |
27 | ||
28 | static void radio_group_finalize ( GObject *gob ); | |
29 | static void radio_group_class_init ( VikRadioGroupClass *klass ); | |
30 | ||
31 | struct _VikRadioGroup { | |
32 | GtkVBox parent; | |
33 | GSList *radios; | |
34 | guint options_count; | |
35 | }; | |
36 | ||
37 | GType vik_radio_group_get_type (void) | |
38 | { | |
39 | static GType vrg_type = 0; | |
40 | ||
41 | if (!vrg_type) | |
42 | { | |
43 | static const GTypeInfo vrg_info = | |
44 | { | |
45 | sizeof (VikRadioGroupClass), | |
46 | NULL, /* base_init */ | |
47 | NULL, /* base_finalize */ | |
48 | (GClassInitFunc) radio_group_class_init, /* class init */ | |
49 | NULL, /* class_finalize */ | |
50 | NULL, /* class_data */ | |
51 | sizeof (VikRadioGroup), | |
52 | 0, | |
53 | NULL /* instance init */ | |
54 | }; | |
55 | vrg_type = g_type_register_static ( GTK_TYPE_VBOX, "VikRadioGroup", &vrg_info, 0 ); | |
56 | } | |
57 | ||
58 | return vrg_type; | |
59 | } | |
60 | ||
61 | static void radio_group_class_init ( VikRadioGroupClass *klass ) | |
62 | { | |
63 | /* Destructor */ | |
64 | GObjectClass *object_class; | |
65 | ||
66 | object_class = G_OBJECT_CLASS (klass); | |
67 | ||
68 | object_class->finalize = radio_group_finalize; | |
69 | ||
70 | parent_class = g_type_class_peek_parent (klass); | |
71 | } | |
72 | ||
73 | GtkWidget *vik_radio_group_new ( const gchar **options ) | |
74 | { | |
75 | VikRadioGroup *vrg; | |
76 | GtkWidget *t; | |
77 | ||
78 | if ( ! *options ) | |
79 | return NULL; | |
80 | ||
81 | vrg = VIK_RADIO_GROUP ( g_object_new ( VIK_RADIO_GROUP_TYPE, NULL ) ); | |
82 | ||
83 | t = gtk_radio_button_new_with_label ( NULL, options[0] ); | |
84 | gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(t), TRUE ); | |
85 | gtk_box_pack_start ( GTK_BOX(vrg), t, FALSE, FALSE, 0 ); | |
86 | ||
87 | vrg->radios = g_slist_append ( NULL, t ); | |
88 | vrg->options_count = 1; | |
89 | ||
90 | for ( options++ ; *options ; options++ ) | |
91 | { | |
92 | t = gtk_radio_button_new_with_label_from_widget ( GTK_RADIO_BUTTON(vrg->radios->data), *options ); | |
93 | g_slist_append( vrg->radios, t ); | |
94 | gtk_box_pack_start ( GTK_BOX(vrg), GTK_WIDGET(t), FALSE, FALSE, 0 ); | |
95 | vrg->options_count++; | |
96 | } | |
97 | ||
98 | return GTK_WIDGET(vrg); | |
99 | } | |
100 | ||
101 | void vik_radio_group_set_selected ( VikRadioGroup *vrg, guint8 i ) | |
102 | { | |
103 | if ( i < vrg->options_count ) | |
104 | gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(g_slist_nth_data(vrg->radios,i)), TRUE ); | |
105 | } | |
106 | ||
107 | guint8 vik_radio_group_get_selected ( VikRadioGroup *vrg ) | |
108 | { | |
109 | guint8 i = 0; | |
110 | GSList *iter = vrg->radios; | |
111 | while ( iter ) | |
112 | { | |
113 | if ( gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(iter->data) ) ) | |
114 | return i; | |
115 | iter = iter->next; | |
116 | i++; | |
117 | } | |
118 | return 0; | |
119 | } | |
120 | ||
121 | static void radio_group_finalize ( GObject *gob ) | |
122 | { | |
123 | VikRadioGroup *vrg = VIK_RADIO_GROUP ( gob ); | |
124 | if ( vrg->radios ) | |
125 | g_slist_free ( vrg->radios ); | |
126 | G_OBJECT_CLASS(parent_class)->finalize(gob); | |
127 | } | |
128 |