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
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt for Python project.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
static bool isDecorator(PyObject* method, PyObject* self)
{
Shiboken::AutoDecRef methodName(PyObject_GetAttrString(method, "__name__"));
if (!PyObject_HasAttr(self, methodName))
return true;
Shiboken::AutoDecRef otherMethod(PyObject_GetAttr(self, methodName));
return reinterpret_cast<PyMethodObject*>(otherMethod.object())->im_func != \
reinterpret_cast<PyMethodObject*>(method)->im_func;
}
static bool getReceiver(QObject *source, const char* signal, PyObject* callback, QObject** receiver, PyObject** self, QByteArray* callbackSig)
{
bool forceGlobalReceiver = false;
if (PyMethod_Check(callback)) {
*self = PyMethod_GET_SELF(callback);
if (%CHECKTYPE[QObject*](*self))
*receiver = %CONVERTTOCPP[QObject*](*self);
forceGlobalReceiver = isDecorator(callback, *self);
} else if (PyCFunction_Check(callback)) {
*self = PyCFunction_GET_SELF(callback);
if (*self && %CHECKTYPE[QObject*](*self))
*receiver = %CONVERTTOCPP[QObject*](*self);
} else if (PyCallable_Check(callback)) {
// Ok, just a callable object
*receiver = 0;
*self = 0;
}
bool usingGlobalReceiver = !*receiver || forceGlobalReceiver;
// Check if this callback is a overwrite of a non-virtual Qt slot.
if (!usingGlobalReceiver && receiver && self) {
*callbackSig = PySide::Signal::getCallbackSignature(signal, *receiver, callback, usingGlobalReceiver).toLatin1();
const QMetaObject* metaObject = (*receiver)->metaObject();
int slotIndex = metaObject->indexOfSlot(callbackSig->constData());
if (slotIndex != -1 && slotIndex < metaObject->methodOffset() && PyMethod_Check(callback))
usingGlobalReceiver = true;
}
if (usingGlobalReceiver) {
PySide::SignalManager& signalManager = PySide::SignalManager::instance();
*receiver = signalManager.globalReceiver(source, callback);
*callbackSig = PySide::Signal::getCallbackSignature(signal, *receiver, callback, usingGlobalReceiver).toLatin1();
}
return usingGlobalReceiver;
}
static bool qobjectConnect(QObject* source, const char* signal, QObject* receiver, const char* slot, Qt::ConnectionType type)
{
if (!signal || !slot)
return false;
if (!PySide::Signal::checkQtSignal(signal))
return false;
signal++;
if (!PySide::SignalManager::registerMetaMethod(source, signal, QMetaMethod::Signal))
return false;
bool isSignal = PySide::Signal::isQtSignal(slot);
slot++;
PySide::SignalManager::registerMetaMethod(receiver, slot, isSignal ? QMetaMethod::Signal : QMetaMethod::Slot);
bool connection;
Py_BEGIN_ALLOW_THREADS
connection = QObject::connect(source, signal - 1, receiver, slot - 1, type);
Py_END_ALLOW_THREADS
return connection;
}
static bool qobjectConnect(QObject* source, QMetaMethod signal, QObject* receiver, QMetaMethod slot, Qt::ConnectionType type)
{
return qobjectConnect(source, signal.methodSignature(), receiver, slot.methodSignature(), type);
}
static bool qobjectConnectCallback(QObject* source, const char* signal, PyObject* callback, Qt::ConnectionType type)
{
if (!signal || !PySide::Signal::checkQtSignal(signal))
return false;
signal++;
int signalIndex = PySide::SignalManager::registerMetaMethodGetIndex(source, signal, QMetaMethod::Signal);
if (signalIndex == -1)
return false;
PySide::SignalManager& signalManager = PySide::SignalManager::instance();
// Extract receiver from callback
QObject* receiver = 0;
PyObject* self = 0;
QByteArray callbackSig;
bool usingGlobalReceiver = getReceiver(source, signal, callback, &receiver, &self, &callbackSig);
if (receiver == 0 && self == 0)
return false;
const QMetaObject* metaObject = receiver->metaObject();
const char* slot = callbackSig.constData();
int slotIndex = metaObject->indexOfSlot(slot);
QMetaMethod signalMethod = metaObject->method(signalIndex);
if (slotIndex == -1) {
if (!usingGlobalReceiver && self && !Shiboken::Object::hasCppWrapper((SbkObject*)self)) {
qWarning() << "You can't add dynamic slots on an object originated from C++.";
if (usingGlobalReceiver)
signalManager.releaseGlobalReceiver(source, receiver);
return false;
}
if (usingGlobalReceiver)
slotIndex = signalManager.globalReceiverSlotIndex(receiver, slot);
else
slotIndex = PySide::SignalManager::registerMetaMethodGetIndex(receiver, slot, QMetaMethod::Slot);
if (slotIndex == -1) {
if (usingGlobalReceiver)
signalManager.releaseGlobalReceiver(source, receiver);
return false;
}
}
bool connection;
Py_BEGIN_ALLOW_THREADS
connection = QMetaObject::connect(source, signalIndex, receiver, slotIndex, type);
Py_END_ALLOW_THREADS
if (connection) {
if (usingGlobalReceiver)
signalManager.notifyGlobalReceiver(receiver);
#ifndef AVOID_PROTECTED_HACK
source->connectNotify(signalMethod); //Qt5: QMetaMethod instead of char*
#else
// Need to cast to QObjectWrapper* and call the public version of
// connectNotify when avoiding the protected hack.
reinterpret_cast<QObjectWrapper*>(source)->connectNotify(signalMethod); //Qt5: QMetaMethod instead of char*
#endif
return connection;
}
if (usingGlobalReceiver)
signalManager.releaseGlobalReceiver(source, receiver);
return false;
}
static bool qobjectDisconnectCallback(QObject* source, const char* signal, PyObject* callback)
{
if (!PySide::Signal::checkQtSignal(signal))
return false;
PySide::SignalManager& signalManager = PySide::SignalManager::instance();
// Extract receiver from callback
QObject* receiver = 0;
PyObject* self = 0;
QByteArray callbackSig;
QMetaMethod slotMethod;
bool usingGlobalReceiver = getReceiver(NULL, signal, callback, &receiver, &self, &callbackSig);
if (receiver == 0 && self == 0)
return false;
const QMetaObject* metaObject = receiver->metaObject();
int signalIndex = source->metaObject()->indexOfSignal(++signal);
int slotIndex = -1;
slotIndex = metaObject->indexOfSlot(callbackSig);
slotMethod = metaObject->method(slotIndex);
bool disconnected;
Py_BEGIN_ALLOW_THREADS
disconnected = QMetaObject::disconnectOne(source, signalIndex, receiver, slotIndex);
Py_END_ALLOW_THREADS
if (disconnected) {
if (usingGlobalReceiver)
signalManager.releaseGlobalReceiver(source, receiver);
#ifndef AVOID_PROTECTED_HACK
source->disconnectNotify(slotMethod); //Qt5: QMetaMethod instead of char*
#else
// Need to cast to QObjectWrapper* and call the public version of
// connectNotify when avoiding the protected hack.
reinterpret_cast<QObjectWrapper*>(source)->disconnectNotify(slotMethod); //Qt5: QMetaMethod instead of char*
#endif
return true;
}
return false;
}
|
