1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
#include "egg-toggle-action.h"
#include "eggtoggletoolbutton.h"
enum {
TOGGLED,
LAST_SIGNAL
};
static void egg_toggle_action_init (EggToggleAction *action);
static void egg_toggle_action_class_init (EggToggleActionClass *class);
GType
egg_toggle_action_get_type (void)
{
static GType type = 0;
if (!type)
{
static const GTypeInfo type_info =
{
sizeof (EggToggleActionClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) egg_toggle_action_class_init,
(GClassFinalizeFunc) NULL,
NULL,
sizeof (EggToggleAction),
0, /* n_preallocs */
(GInstanceInitFunc) egg_toggle_action_init,
};
type = g_type_register_static (EGG_TYPE_ACTION,
"EggToggleAction",
&type_info, 0);
}
return type;
}
static void egg_toggle_action_activate (EggAction *action);
static void egg_toggle_action_real_toggled (EggToggleAction *action);
static void connect_proxy (EggAction *action,
GtkWidget *proxy);
static void disconnect_proxy (EggAction *action,
GtkWidget *proxy);
static GObjectClass *parent_class = NULL;
static guint action_signals[LAST_SIGNAL] = { 0 };
static void
egg_toggle_action_class_init (EggToggleActionClass *class)
{
EggActionClass *action_class;
parent_class = g_type_class_peek_parent (class);
action_class = EGG_ACTION_CLASS (class);
action_class->activate = egg_toggle_action_activate;
action_class->connect_proxy = connect_proxy;
action_class->disconnect_proxy = disconnect_proxy;
action_class->menu_item_type = GTK_TYPE_CHECK_MENU_ITEM;
action_class->toolbar_item_type = EGG_TYPE_TOGGLE_TOOL_BUTTON;
class->toggled = egg_toggle_action_real_toggled;
action_signals[TOGGLED] =
g_signal_new ("toggled",
G_OBJECT_CLASS_TYPE (class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (EggToggleActionClass, toggled),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
egg_toggle_action_init (EggToggleAction *action)
{
action->active = FALSE;
}
static void
egg_toggle_action_activate (EggAction *action)
{
EggToggleAction *toggle_action;
g_return_if_fail (EGG_IS_TOGGLE_ACTION (action));
toggle_action = EGG_TOGGLE_ACTION (action);
toggle_action->active = !toggle_action->active;
egg_toggle_action_toggled (toggle_action);
}
static void
egg_toggle_action_real_toggled (EggToggleAction *action)
{
GSList *slist;
g_return_if_fail (EGG_IS_TOGGLE_ACTION (action));
for (slist = EGG_ACTION (action)->proxies; slist; slist = slist->next)
{
GtkWidget *proxy = slist->data;
egg_action_block_activate_from (EGG_ACTION (action), proxy);
if (GTK_IS_CHECK_MENU_ITEM (proxy))
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (proxy),
action->active);
else if (EGG_IS_TOGGLE_TOOL_BUTTON (proxy))
egg_toggle_tool_button_set_active (EGG_TOGGLE_TOOL_BUTTON (proxy),
action->active);
else {
g_warning ("Don't know how to toggle `%s' widgets",
G_OBJECT_TYPE_NAME (proxy));
}
egg_action_unblock_activate_from (EGG_ACTION (action), proxy);
}
}
static void
connect_proxy (EggAction *action, GtkWidget *proxy)
{
EggToggleAction *toggle_action;
toggle_action = EGG_TOGGLE_ACTION (action);
/* do this before hand, so that we don't call the "activate" handler */
if (GTK_IS_MENU_ITEM (proxy))
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (proxy),
toggle_action->active);
else if (EGG_IS_TOGGLE_TOOL_BUTTON (proxy))
egg_toggle_tool_button_set_active (EGG_TOGGLE_TOOL_BUTTON (proxy),
toggle_action->active);
(* EGG_ACTION_CLASS (parent_class)->connect_proxy) (action, proxy);
}
static void
disconnect_proxy (EggAction *action, GtkWidget *proxy)
{
EggToggleAction *toggle_action;
toggle_action = EGG_TOGGLE_ACTION (action);
(* EGG_ACTION_CLASS (parent_class)->disconnect_proxy) (action, proxy);
}
/**
* egg_toggle_action_toggled:
* @action: the action object
*
* Emits the "toggled" signal on the toggle action.
*/
void
egg_toggle_action_toggled (EggToggleAction *action)
{
g_return_if_fail (EGG_IS_TOGGLE_ACTION (action));
g_signal_emit (action, action_signals[TOGGLED], 0);
}
/**
* egg_toggle_action_set_active:
* @action: the action object
* @is_active: whether the action should be checked or not
*
* Sets the checked state on the toggle action.
*/
void
egg_toggle_action_set_active (EggToggleAction *action, gboolean is_active)
{
g_return_if_fail (EGG_IS_TOGGLE_ACTION (action));
is_active = is_active != 0;
if (action->active != is_active)
{
egg_action_activate (EGG_ACTION (action));
}
}
/**
* egg_toggle_action_get_active:
* @action: the action object
*
* Returns: the checked state of the toggle action
*/
gboolean
egg_toggle_action_get_active (EggToggleAction *action)
{
g_return_val_if_fail (EGG_IS_TOGGLE_ACTION (action), FALSE);
return action->active;
}
|
