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
|
/* Copyright (C) 2010 The giomm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gio/gio.h>
#include <glibmm/exceptionhandler.h>
#include <glibmm/vectorutils.h>
#include <giomm/settingsschema.h>
namespace
{
struct SettingsMapSlots
{
SettingsMapSlots(const Gio::Settings::SlotGetMapping& get_mapping,
const Gio::Settings::SlotSetMapping& set_mapping)
: from_setting_to_property(get_mapping), from_property_to_setting(set_mapping)
{
}
Gio::Settings::SlotGetMapping from_setting_to_property;
Gio::Settings::SlotSetMapping from_property_to_setting;
};
gboolean
Settings_get_mapping_callback(
GValue* to_value, GVariant* from_variant, gpointer user_data)
{
Gio::Settings::SlotGetMapping& the_slot =
static_cast<SettingsMapSlots*>(user_data)->from_setting_to_property;
bool result = false;
try
{
result = the_slot(to_value, from_variant);
}
catch (...)
{
Glib::exception_handlers_invoke();
}
return result;
}
GVariant*
Settings_set_mapping_callback(
const GValue* from_value, const GVariantType* expected_type, gpointer user_data)
{
Gio::Settings::SlotSetMapping& the_slot =
static_cast<SettingsMapSlots*>(user_data)->from_property_to_setting;
GVariant* result = nullptr;
try
{
result = the_slot(from_value, expected_type);
}
catch (...)
{
Glib::exception_handlers_invoke();
}
return result;
}
void
Settings_map_callback_destroy(gpointer user_data)
{
delete static_cast<SettingsMapSlots*>(user_data);
}
} // anonymous namespace
namespace Gio
{
void Settings::bind_value(const Glib::ustring& key,
Glib::ObjectBase* object, const Glib::ustring& property, BindFlags flags,
const SlotGetMapping& get_mapping, const SlotSetMapping& set_mapping)
{
if (get_mapping.empty() && set_mapping.empty())
{
// No user-supplied mappings.
g_settings_bind(gobj(), key.c_str(), object->gobj(),
property.c_str(), (GSettingsBindFlags)flags);
}
else
{
// Create copies of the slots. A pointer to this will be passed
// through the callback's data parameter. It will be deleted
// when Settings_map_callback_destroy() is called.
SettingsMapSlots* slots_copy = new SettingsMapSlots(get_mapping, set_mapping);
g_settings_bind_with_mapping(gobj(), key.c_str(),
object->gobj(), property.c_str(), (GSettingsBindFlags)flags,
get_mapping.empty() ? nullptr : &Settings_get_mapping_callback,
set_mapping.empty() ? nullptr : &Settings_set_mapping_callback, slots_copy,
&Settings_map_callback_destroy);
}
}
void
Settings::get_value(const Glib::ustring& key, Glib::VariantBase& value) const
{
const auto g_value = g_settings_get_value(const_cast<GSettings*>(gobj()), key.c_str());
if (!g_value)
return;
value.init(g_value, false /* don't take a reference */);
}
bool
Settings::get_user_value(const Glib::ustring& key, Glib::VariantBase& value) const
{
const auto g_value = g_settings_get_user_value(const_cast<GSettings*>(gobj()), key.c_str());
if (!g_value)
return false;
value.init(g_value, false /* don't take a reference */);
return true;
}
void
Settings::get_default_value(const Glib::ustring& key, Glib::VariantBase& value) const
{
const auto g_value = g_settings_get_default_value(const_cast<GSettings*>(gobj()), key.c_str());
if (!g_value)
return;
value.init(g_value, false /* don't take a reference */);
}
void
Settings::bind(
const Glib::ustring& key, const Glib::PropertyProxy_Base& property_proxy, BindFlags flags)
{
bind(key, property_proxy.get_object(), property_proxy.get_name(), flags);
}
void
Settings::bind_writable(
const Glib::ustring& key, const Glib::PropertyProxy_Base& property_proxy, bool inverted)
{
bind_writable(key, property_proxy.get_object(), property_proxy.get_name(), inverted);
}
//static
void Settings::unbind(const Glib::PropertyProxy_Base& property_proxy)
{
unbind(property_proxy.get_object(), property_proxy.get_name());
}
}
|
