1 /* GAIL - The GNOME Accessibility Enabling Library
2 * Copyright 2001 Sun Microsystems Inc.
3 *
4 * This library 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) any later version.
8 *
9 * This library 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 this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 */
19
20 #include "config.h"
21
22 #include <gtk/gtk.h>
23 #include "gailbooleancell.h"
24
25 static void gail_boolean_cell_class_init (GailBooleanCellClass *klass);
26 static void gail_boolean_cell_init (GailBooleanCell *cell);
27 /* Misc */
28
29 static gboolean gail_boolean_cell_update_cache (GailRendererCell *cell,
30 gboolean emit_change_signal);
31
32 gchar *gail_boolean_cell_property_list[] = {
33 "active",
34 "radio",
35 "sensitive",
36 NULL
37 };
38
G_DEFINE_TYPE(GailBooleanCell,gail_boolean_cell,GAIL_TYPE_RENDERER_CELL)39 G_DEFINE_TYPE (GailBooleanCell, gail_boolean_cell, GAIL_TYPE_RENDERER_CELL)
40
41 static void
42 gail_boolean_cell_class_init (GailBooleanCellClass *klass)
43 {
44 GailRendererCellClass *renderer_cell_class = GAIL_RENDERER_CELL_CLASS (klass);
45
46 renderer_cell_class->update_cache = gail_boolean_cell_update_cache;
47 renderer_cell_class->property_list = gail_boolean_cell_property_list;
48 }
49
50 static void
gail_boolean_cell_init(GailBooleanCell * cell)51 gail_boolean_cell_init (GailBooleanCell *cell)
52 {
53 }
54
55 AtkObject*
gail_boolean_cell_new(void)56 gail_boolean_cell_new (void)
57 {
58 GObject *object;
59 AtkObject *atk_object;
60 GailRendererCell *cell;
61 GailBooleanCell *boolean_cell;
62
63 object = g_object_new (GAIL_TYPE_BOOLEAN_CELL, NULL);
64
65 g_return_val_if_fail (object != NULL, NULL);
66
67 atk_object = ATK_OBJECT (object);
68 atk_object->role = ATK_ROLE_TABLE_CELL;
69
70 cell = GAIL_RENDERER_CELL(object);
71 boolean_cell = GAIL_BOOLEAN_CELL(object);
72
73 cell->renderer = gtk_cell_renderer_toggle_new ();
74 g_object_ref_sink (cell->renderer);
75 boolean_cell->cell_value = FALSE;
76 boolean_cell->cell_sensitive = TRUE;
77 return atk_object;
78 }
79
80 static gboolean
gail_boolean_cell_update_cache(GailRendererCell * cell,gboolean emit_change_signal)81 gail_boolean_cell_update_cache (GailRendererCell *cell,
82 gboolean emit_change_signal)
83 {
84 GailBooleanCell *boolean_cell = GAIL_BOOLEAN_CELL (cell);
85 gboolean rv = FALSE;
86 gboolean new_boolean;
87 gboolean new_sensitive;
88
89 g_object_get (G_OBJECT(cell->renderer), "active", &new_boolean,
90 "sensitive", &new_sensitive, NULL);
91
92 if (boolean_cell->cell_value != new_boolean)
93 {
94 rv = TRUE;
95 boolean_cell->cell_value = !(boolean_cell->cell_value);
96
97 /* Update cell's state */
98
99 if (new_boolean)
100 gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_CHECKED, emit_change_signal);
101 else
102 gail_cell_remove_state (GAIL_CELL (cell), ATK_STATE_CHECKED, emit_change_signal);
103 }
104
105 if (boolean_cell->cell_sensitive != new_sensitive)
106 {
107 rv = TRUE;
108 boolean_cell->cell_sensitive = !(boolean_cell->cell_sensitive);
109
110 /* Update cell's state */
111
112 if (new_sensitive)
113 gail_cell_add_state (GAIL_CELL (cell), ATK_STATE_SENSITIVE, emit_change_signal);
114 else
115 gail_cell_remove_state (GAIL_CELL (cell), ATK_STATE_SENSITIVE, emit_change_signal);
116 }
117
118 return rv;
119 }
120