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
|
/* propertyproxy_base.h
*
* Copyright 2002 The gtkmm 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 <glibmm/propertyproxy_base.h>
#include <glibmm/signalproxy_connectionnode.h>
#include <glibmm/object.h>
#include <glibmm/private/object_p.h>
#include <utility> // For std::move()
namespace
{
extern "C"
{
// From functions with C linkage to public static member functions with C++ linkage
static void PropertyProxyConnectionNode_callback(GObject* object, GParamSpec* pspec, gpointer data)
{
Glib::PropertyProxyConnectionNode::callback(object, pspec, data);
}
static void PropertyProxyConnectionNode_destroy_notify_handler(gpointer data, GClosure* closure)
{
// It's actually in the base class SignalProxyConnectionNode
Glib::PropertyProxyConnectionNode::destroy_notify_handler(data, closure);
}
} // extern "C"
} // anonymous namespace
namespace Glib
{
// PropertyProxyConnectionNode implementation:
PropertyProxyConnectionNode::PropertyProxyConnectionNode(
const sigc::slot_base& slot, GObject* gobject)
: SignalProxyConnectionNode(slot, gobject)
{
}
PropertyProxyConnectionNode::PropertyProxyConnectionNode(sigc::slot_base&& slot, GObject* gobject)
: SignalProxyConnectionNode(std::move(slot), gobject)
{
}
static Glib::ustring
get_detailed_signal_name(const Glib::ustring& signal_name, const Glib::ustring& detail)
{
if (detail.empty())
return signal_name;
return signal_name + "::" + detail;
}
sigc::connection
PropertyProxyConnectionNode::connect_changed(const Glib::ustring& property_name)
{
// connect it to glib
// 'this' will be passed as the data argument to the callback.
const Glib::ustring notify_signal_name = get_detailed_signal_name("notify", property_name);
connection_id_ = g_signal_connect_data(object_, notify_signal_name.c_str(),
(GCallback)(&PropertyProxyConnectionNode_callback), this,
&PropertyProxyConnectionNode_destroy_notify_handler, G_CONNECT_AFTER);
return sigc::connection(slot_);
}
void PropertyProxyConnectionNode::callback(GObject*, GParamSpec* pspec, gpointer data) // static
{
if (pspec && data)
{
if (sigc::slot_base* const slot = SignalProxyBase::data_to_slot(data))
(*static_cast<sigc::slot<void()>*>(slot))();
}
}
// SignalProxyProperty implementation:
SignalProxyProperty::SignalProxyProperty(Glib::ObjectBase* obj, const gchar* property_name)
: SignalProxyBase(obj), property_name_(property_name)
{
}
SignalProxyProperty::~SignalProxyProperty() noexcept
{
}
sigc::connection
SignalProxyProperty::connect(const SlotType& slot)
{
// Create a proxy to hold our connection info
// This will be deleted by destroy_notify_handler.
auto pConnectionNode = new PropertyProxyConnectionNode(slot, obj_->gobj());
// connect it to glib
// pConnectionNode will be passed as the data argument to the callback.
return pConnectionNode->connect_changed(property_name_);
}
sigc::connection
SignalProxyProperty::connect(SlotType&& slot)
{
// Create a proxy to hold our connection info
// This will be deleted by destroy_notify_handler.
auto pConnectionNode = new PropertyProxyConnectionNode(std::move(slot), obj_->gobj());
// connect it to glib
// pConnectionNode will be passed as the data argument to the callback.
return pConnectionNode->connect_changed(property_name_);
}
// PropertyProxy_Base implementation:
PropertyProxy_Base::PropertyProxy_Base(ObjectBase* obj, const char* property_name)
: obj_(obj), property_name_(property_name)
{
}
PropertyProxy_Base::PropertyProxy_Base(const PropertyProxy_Base& other)
: obj_(other.obj_), property_name_(other.property_name_)
{
}
SignalProxyProperty
PropertyProxy_Base::signal_changed()
{
return SignalProxyProperty(obj_, property_name_);
}
void
PropertyProxy_Base::set_property_(const Glib::ValueBase& value)
{
g_object_set_property(obj_->gobj(), property_name_, value.gobj());
}
void
PropertyProxy_Base::get_property_(Glib::ValueBase& value) const
{
g_object_get_property(obj_->gobj(), property_name_, value.gobj());
}
void
PropertyProxy_Base::reset_property_()
{
// Get information about the parameter:
const GParamSpec* const pParamSpec =
g_object_class_find_property(G_OBJECT_GET_CLASS(obj_->gobj()), property_name_);
g_return_if_fail(pParamSpec != nullptr);
Glib::ValueBase value;
value.init(G_PARAM_SPEC_VALUE_TYPE(pParamSpec));
// An explicit reset is not needed, because ValueBase:init()
// has already initialized it to the default value for this type.
// value.reset();
g_object_set_property(obj_->gobj(), property_name_, value.gobj());
}
} // namespace Glib
|
