No issues found
1 /*
2 * Evolution internal utilities - Glade dialog widget utilities
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) version 3.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with the program; if not, see <http://www.gnu.org/licenses/>
16 *
17 *
18 * Authors:
19 * Federico Mena-Quintero <federico@ximian.com>
20 *
21 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
22 *
23 */
24
25 #ifdef HAVE_CONFIG_H
26 #include <config.h>
27 #endif
28
29 #include <math.h>
30 #include <string.h>
31 #include <time.h>
32 #include <gtk/gtk.h>
33
34 #include "e-dialog-widgets.h"
35
36 /* Converts an mapped value to the appropriate index in an item group. The
37 * values for the items are provided as a -1-terminated array.
38 */
39 static gint
40 value_to_index (const gint *value_map,
41 gint value)
42 {
43 gint i;
44
45 for (i = 0; value_map[i] != -1; i++)
46 if (value_map[i] == value)
47 return i;
48
49 return -1;
50 }
51
52 /* Converts an index in an item group to the appropriate mapped value. See the
53 * function above.
54 */
55 static gint
56 index_to_value (const gint *value_map,
57 gint index)
58 {
59 gint i;
60
61 /* We do this the hard way, i.e. not as a simple array reference, to
62 * check for correctness.
63 */
64
65 for (i = 0; value_map[i] != -1; i++)
66 if (i == index)
67 return value_map[i];
68
69 return -1;
70 }
71
72 /**
73 * e_dialog_combo_box_set:
74 * @widget: A #GtkComboBox.
75 * @value: Enumerated value.
76 * @value_map: Map from enumeration values to array indices.
77 *
78 * Sets the selected item in a #GtkComboBox. Please read the description of
79 * e_dialog_radio_set() to see how @value_map maps enumeration values to item
80 * indices.
81 **/
82 void
83 e_dialog_combo_box_set (GtkWidget *widget,
84 gint value,
85 const gint *value_map)
86 {
87 gint i;
88
89 g_return_if_fail (GTK_IS_COMBO_BOX (widget));
90 g_return_if_fail (value_map != NULL);
91
92 i = value_to_index (value_map, value);
93
94 if (i != -1)
95 gtk_combo_box_set_active (GTK_COMBO_BOX (widget), i);
96 else
97 g_message (
98 "e_dialog_combo_box_set(): could not "
99 "find value %d in value map!", value);
100 }
101
102 /**
103 * e_dialog_combo_box_get:
104 * @widget: A #GtkComboBox.
105 * @value_map: Map from enumeration values to array indices.
106 *
107 * Queries the selected item in a #GtkComboBox. Please read the description
108 * of e_dialog_radio_set() to see how @value_map maps enumeration values to item
109 * indices.
110 *
111 * Return value: Enumeration value which corresponds to the selected item in the
112 * combo box.
113 **/
114 gint
115 e_dialog_combo_box_get (GtkWidget *widget,
116 const gint *value_map)
117 {
118 gint active;
119 gint i;
120
121 g_return_val_if_fail (GTK_IS_COMBO_BOX (widget), -1);
122 g_return_val_if_fail (value_map != NULL, -1);
123
124 active = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
125 i = index_to_value (value_map, active);
126
127 if (i == -1) {
128 g_message (
129 "e_dialog_combo_box_get(): could not "
130 "find index %d in value map!", i);
131 return -1;
132 }
133
134 return i;
135 }