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
|
// This is the implementation of the ListWrapper class.
//
// Copyright (c) 2015 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 "sipAPIQtDeclarative.h"
#include "qpydeclarative_listwrapper.h"
// Create a wrapper from validated objects.
ListWrapper::ListWrapper(PyObject *py_list, QObject *parent)
: QObject(parent), _py_list(py_list)
{
Py_INCREF(_py_list);
}
// Destroy the wrapper.
ListWrapper::~ListWrapper()
{
Py_DECREF(_py_list);
}
// Get a wrapper after validating any list elements.
ListWrapper *ListWrapper::wrapper(PyObject *py_list, QObject *parent)
{
ListWrapper *lw;
// A wrapper might be created every time the property getter is called, so
// try and reuse an existing one.
const QObjectList &children = parent->children();
for (int i = 0; i < children.count(); ++i)
{
lw = qobject_cast<ListWrapper *>(children.at(i));
if (lw && lw->_py_list == py_list)
return lw;
}
// Create a new one.
lw = new ListWrapper(py_list, parent);
for (SIP_SSIZE_T i = 0; i < PyList_GET_SIZE(py_list); ++i)
{
int iserr = 0;
void *cpp = sipForceConvertToType(PyList_GET_ITEM(py_list, i),
sipType_QObject, 0, SIP_NO_CONVERTORS, 0, &iserr);
if (iserr)
{
delete lw;
return 0;
}
lw->qobject_list.append(reinterpret_cast<QObject *>(cpp));
}
return lw;
}
// Append to the list.
void ListWrapper::append(QObject *qobj, QList<QObject *> *qlist, QObject *el)
{
qlist->append(el);
ListWrapper *lw = findWrapper(qobj, qlist);
if (lw)
{
PyObject *el_obj = sipConvertFromType(el, sipType_QObject, 0);
if (!el_obj || PyList_Append(lw->_py_list, el_obj) < 0)
{
PyErr_Print();
}
Py_XDECREF(el_obj);
}
else
{
PyErr_Print();
}
}
// Clear the list.
void ListWrapper::clear(QObject *qobj, QList<QObject *> *qlist)
{
qlist->clear();
ListWrapper *lw = findWrapper(qobj, qlist);
if (!lw || PyList_SetSlice(lw->_py_list, 0, PyList_GET_SIZE(lw->_py_list), NULL) < 0)
PyErr_Print();
}
// Find the wrapper that handles a given C++ list.
ListWrapper *ListWrapper::findWrapper(QObject *qobj, QList<QObject *> *qlist)
{
const QObjectList &children = qobj->children();
for (int i = 0; i < children.count(); ++i)
{
ListWrapper *lw = qobject_cast<ListWrapper *>(children.at(i));
if (lw && &lw->qobject_list == qlist)
return lw;
}
PyErr_SetString(PyExc_AttributeError, "unable to find list wrapper");
return 0;
}
|
