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
|
/* signalproxy.cc
*
* Copyright (C) 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, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <glib-object.h>
#include <glibmm/exceptionhandler.h>
#include <glibmm/object.h>
#include <glibmm/signalproxy.h>
namespace Glib
{
// SignalProxyBase implementation:
SignalProxyBase::SignalProxyBase(Glib::ObjectBase* obj)
:
obj_ (obj)
{}
// SignalProxyNormal implementation:
SignalProxyNormal::SignalProxyNormal(Glib::ObjectBase* obj, const SignalProxyInfo* info)
:
SignalProxyBase (obj),
info_ (info)
{}
SignalProxyNormal::~SignalProxyNormal()
{}
sigc::slot_base&
SignalProxyNormal::connect_(const sigc::slot_base& slot, bool after)
{
return connect_impl_(info_->callback, slot, after);
}
sigc::slot_base&
SignalProxyNormal::connect_notify_(const sigc::slot_base& slot, bool after)
{
return connect_impl_(info_->notify_callback, slot, after);
}
sigc::slot_base&
SignalProxyNormal::connect_impl_(GCallback callback, const sigc::slot_base& slot, bool after)
{
// create a proxy to hold our connection info
SignalProxyConnectionNode *const pConnectionNode =
new SignalProxyConnectionNode(slot, obj_->gobj());
// connect it to glib
// pConnectionNode will be passed in the data argument to the callback.
pConnectionNode->connection_id_ = g_signal_connect_data(
obj_->gobj(), info_->signal_name, callback, pConnectionNode,
&SignalProxyConnectionNode::destroy_notify_handler,
static_cast<GConnectFlags>((after) ? G_CONNECT_AFTER : 0));
return pConnectionNode->slot_;
}
void SignalProxyNormal::emission_stop()
{
g_signal_stop_emission_by_name(obj_->gobj(), info_->signal_name);
}
// static
void SignalProxyNormal::slot0_void_callback(GObject* self, void* data)
{
// Do not try to call a signal on a disassociated wrapper.
if(Glib::ObjectBase::_get_current_wrapper(self))
{
try
{
if(sigc::slot_base *const slot = data_to_slot(data))
(*static_cast<sigc::slot<void>*>(slot))();
}
catch(...)
{
Glib::exception_handlers_invoke();
}
}
}
// SignalProxyDetailed implementation:
SignalProxyDetailed::SignalProxyDetailed(Glib::ObjectBase* obj,
const SignalProxyInfo* info, const Glib::ustring& detail_name)
:
SignalProxyBase (obj),
info_ (info),
detailed_name_ (Glib::ustring(info->signal_name) +
(detail_name.empty() ? Glib::ustring() : ("::" + detail_name)))
{}
SignalProxyDetailed::~SignalProxyDetailed()
{}
sigc::slot_base&
SignalProxyDetailed::connect_impl_(bool notify, const sigc::slot_base& slot, bool after)
{
// create a proxy to hold our connection info
SignalProxyConnectionNode *const pConnectionNode =
new SignalProxyConnectionNode(slot, obj_->gobj());
// connect it to glib
// pConnectionNode will be passed in the data argument to the callback.
pConnectionNode->connection_id_ = g_signal_connect_data(
obj_->gobj(), detailed_name_.c_str(),
notify ? info_->notify_callback : info_->callback,
pConnectionNode, &SignalProxyConnectionNode::destroy_notify_handler,
static_cast<GConnectFlags>(after ? G_CONNECT_AFTER : 0));
return pConnectionNode->slot_;
}
void SignalProxyDetailed::emission_stop()
{
g_signal_stop_emission_by_name(obj_->gobj(), detailed_name_.c_str());
}
} // namespace Glib
|
