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1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) version 3.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with the program; if not, see <http://www.gnu.org/licenses/>
14 *
15 *
16 * Authors:
17 *
18 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
19 *
20 */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <gtk/gtk.h>
27
28 #include "table/e-cell-toggle.h"
29 #include "table/e-table-model.h"
30 #include <glib/gi18n.h>
31
32 #include "gal-a11y-e-cell-toggle.h"
33
34 #define PARENT_TYPE (gal_a11y_e_cell_get_type ())
35 static GObjectClass *parent_class;
36
37 static void gal_a11y_e_cell_toggle_class_init (GalA11yECellToggleClass *class);
38
39 static void
40 gal_a11y_e_cell_toggle_dispose (GObject *object)
41 {
42 GalA11yECellToggle *a11y = GAL_A11Y_E_CELL_TOGGLE (object);
43
44 ETableModel *e_table_model = GAL_A11Y_E_CELL (a11y)->item->table_model;
45
46 if (e_table_model && a11y->model_id > 0) {
47 g_signal_handler_disconnect (e_table_model, a11y->model_id);
48 a11y->model_id = 0;
49 }
50
51 if (parent_class->dispose)
52 parent_class->dispose (object);
53 }
54
55 GType
56 gal_a11y_e_cell_toggle_get_type (void)
57 {
58 static GType type = 0;
59
60 if (!type)
61 {
62 static const GTypeInfo tinfo =
63 {
64 sizeof (GalA11yECellToggleClass),
65 (GBaseInitFunc) NULL, /* base init */
66 (GBaseFinalizeFunc) NULL, /* base finalize */
67 (GClassInitFunc) gal_a11y_e_cell_toggle_class_init, /* class init */
68 (GClassFinalizeFunc) NULL, /* class finalize */
69 NULL, /* class data */
70 sizeof (GalA11yECellToggle), /* instance size */
71 0, /* nb preallocs */
72 NULL, /* instance init */
73 NULL /* value table */
74 };
75
76 type = g_type_register_static (GAL_A11Y_TYPE_E_CELL,
77 "GalA11yECellToggle", &tinfo, 0);
78 gal_a11y_e_cell_type_add_action_interface (type);
79
80 }
81 return type;
82 }
83
84 static void
85 gal_a11y_e_cell_toggle_class_init (GalA11yECellToggleClass *class)
86 {
87 GObjectClass *object_class = G_OBJECT_CLASS (class);
88
89 object_class->dispose = gal_a11y_e_cell_toggle_dispose;
90 parent_class = g_type_class_ref (PARENT_TYPE);
91 }
92
93 static void
94 toggle_cell_action (GalA11yECell *cell)
95 {
96 gint finished;
97 GtkLayout *layout;
98 GdkEventButton event;
99 gint x, y, width, height;
100 gint row, col;
101
102 row = cell->row;
103 col = cell->view_col;
104
105 layout = GTK_LAYOUT (GNOME_CANVAS_ITEM (cell->item)->canvas);
106
107 e_table_item_get_cell_geometry (
108 cell->item, &row, &col, &x, &y, &width, &height);
109
110 event.x = x + width / 2 + (gint)(GNOME_CANVAS_ITEM (cell->item)->x1);
111 event.y = y + height / 2 + (gint)(GNOME_CANVAS_ITEM (cell->item)->y1);
112
113 event.type = GDK_BUTTON_PRESS;
114 event.window = gtk_layout_get_bin_window (layout);
115 event.button = 1;
116 event.send_event = TRUE;
117 event.time = GDK_CURRENT_TIME;
118 event.axes = NULL;
119
120 g_signal_emit_by_name (cell->item, "event", &event, &finished);
121 }
122
123 static void
124 model_change_cb (ETableModel *etm,
125 gint col,
126 gint row,
127 GalA11yECell *cell)
128 {
129 gint value;
130
131 if (col == cell->model_col && row == cell->row) {
132
133 value = GPOINTER_TO_INT (
134 e_table_model_value_at (cell->cell_view->e_table_model,
135 cell->model_col, cell->row));
136 /* Cheat gnopernicus, or it will ignore the state change signal */
137 atk_focus_tracker_notify (ATK_OBJECT (cell));
138
139 if (value)
140 gal_a11y_e_cell_add_state (cell, ATK_STATE_CHECKED, TRUE);
141 else
142 gal_a11y_e_cell_remove_state (cell, ATK_STATE_CHECKED, TRUE);
143 }
144 }
145
146 AtkObject *
147 gal_a11y_e_cell_toggle_new (ETableItem *item,
148 ECellView *cell_view,
149 AtkObject *parent,
150 gint model_col,
151 gint view_col,
152 gint row)
153 {
154 AtkObject *a11y;
155 GalA11yECell *cell;
156 GalA11yECellToggle *toggle_cell;
157 gint value;
158
159 a11y = ATK_OBJECT (g_object_new (GAL_A11Y_TYPE_E_CELL_TOGGLE, NULL));
160
161 g_return_val_if_fail (a11y != NULL, NULL);
162
163 cell = GAL_A11Y_E_CELL (a11y);
164 toggle_cell = GAL_A11Y_E_CELL_TOGGLE (a11y);
165 a11y->role = ATK_ROLE_TABLE_CELL;
166
167 gal_a11y_e_cell_construct (
168 a11y,
169 item,
170 cell_view,
171 parent,
172 model_col,
173 view_col,
174 row);
175
176 gal_a11y_e_cell_add_action (
177 cell,
178 "toggle",
179 /* Translators: description of a "toggle" action */
180 _("toggle the cell"),
181 NULL, /* action keybinding */
182 toggle_cell_action);
183
184 toggle_cell->model_id = g_signal_connect (
185 item->table_model, "model_cell_changed",
186 (GCallback) model_change_cb, a11y);
187
188 value = GPOINTER_TO_INT (
189 e_table_model_value_at (
190 cell->cell_view->e_table_model,
191 cell->model_col, cell->row));
192 if (value)
193 gal_a11y_e_cell_add_state (cell, ATK_STATE_CHECKED, FALSE);
194 else
195 gal_a11y_e_cell_remove_state (cell, ATK_STATE_CHECKED, FALSE);
196
197 return a11y;
198 }