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
|
// This contains the support for Python objects and Qt's metatype system.
//
// Copyright (c) 2016 Riverbank Computing Limited <info@riverbankcomputing.com>
//
// This file is part of PyQt4.
//
// This file may be used under the terms of the GNU General Public License
// version 3.0 as published by the Free Software Foundation and appearing in
// the file LICENSE included in the packaging of this file. Please review the
// following information to ensure the GNU General Public License version 3.0
// requirements will be met: http://www.gnu.org/copyleft/gpl.html.
//
// If you do not wish to use this file under the terms of the GPL version 3.0
// then you may purchase a commercial license. For more information contact
// info@riverbankcomputing.com.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#include <Python.h>
#include "qpycore_pyqtpyobject.h"
#include "qpycore_sip.h"
// The Qt metatype id.
int PyQt_PyObject::metatype;
// The current pickle protocol.
PyObject *qpycore_pickle_protocol;
// Wrap a Python object.
PyQt_PyObject::PyQt_PyObject(PyObject *py)
{
pyobject = py;
SIP_BLOCK_THREADS
Py_XINCREF(pyobject);
SIP_UNBLOCK_THREADS
}
// Create a new wrapper, with no Python object. This is called by Qt's
// metatype system.
PyQt_PyObject::PyQt_PyObject()
{
pyobject = 0;
}
// Create a copy of an existing wrapper. This is called by Qt's metatype
// system.
PyQt_PyObject::PyQt_PyObject(const PyQt_PyObject &other)
{
pyobject = other.pyobject;
SIP_BLOCK_THREADS
Py_XINCREF(pyobject);
SIP_UNBLOCK_THREADS
}
// Destroy a wrapper.
PyQt_PyObject::~PyQt_PyObject()
{
// Qt can still be tidying up after Python has gone so make sure that it
// hasn't.
if (Py_IsInitialized())
{
SIP_BLOCK_THREADS
Py_XDECREF(pyobject);
SIP_UNBLOCK_THREADS
}
pyobject = 0;
}
// Assignment operator.
PyQt_PyObject &PyQt_PyObject::operator=(const PyQt_PyObject &other)
{
pyobject = other.pyobject;
SIP_BLOCK_THREADS
Py_XINCREF(pyobject);
SIP_UNBLOCK_THREADS
return *this;
}
// Serialise operator.
QDataStream &operator<<(QDataStream &out, const PyQt_PyObject &obj)
{
PyObject *ser_obj = 0;
const char *ser = 0;
uint len = 0;
if (obj.pyobject)
{
static PyObject *dumps = 0;
SIP_BLOCK_THREADS
if (!dumps)
{
PyObject *pickle = PyImport_ImportModule("pickle");
if (pickle)
{
dumps = PyObject_GetAttrString(pickle, "dumps");
Py_DECREF(pickle);
}
}
if (dumps)
{
if (!qpycore_pickle_protocol)
{
Py_INCREF(Py_None);
qpycore_pickle_protocol = Py_None;
}
ser_obj = PyObject_CallFunctionObjArgs(dumps, obj.pyobject,
qpycore_pickle_protocol, 0);
if (ser_obj)
{
if (SIPBytes_Check(ser_obj))
{
ser = SIPBytes_AS_STRING(ser_obj);
len = SIPBytes_GET_SIZE(ser_obj);
}
else
{
Py_DECREF(ser_obj);
ser_obj = 0;
}
}
else
{
PyErr_Print();
}
}
SIP_UNBLOCK_THREADS
}
out.writeBytes(ser, len);
if (ser_obj)
{
SIP_BLOCK_THREADS
Py_DECREF(ser_obj);
SIP_UNBLOCK_THREADS
}
return out;
}
// De-serialise operator.
QDataStream &operator>>(QDataStream &in, PyQt_PyObject &obj)
{
char *ser;
uint len;
in.readBytes(ser, len);
if (len)
{
static PyObject *loads = 0;
SIP_BLOCK_THREADS
if (!loads)
{
PyObject *pickle = PyImport_ImportModule("pickle");
if (pickle)
{
loads = PyObject_GetAttrString(pickle, "loads");
Py_DECREF(pickle);
}
}
if (loads)
{
PyObject *ser_obj = SIPBytes_FromStringAndSize(ser, len);
if (ser_obj)
{
obj.pyobject = PyObject_CallFunctionObjArgs(loads, ser_obj, 0);
Py_DECREF(ser_obj);
}
}
SIP_UNBLOCK_THREADS
}
delete[] ser;
return in;
}
|
